1. A mini-cluster block, comprising:

a plurality of terminals one-to-one coupled to a plurality of terminal pins of the hermetic terminal device;

a base housing formed with a plurality of slots for receiving the respective terminals, each of the slots being formed with a plurality of holes for the respective terminal pins to pass through; and

a cover housing coupled to the base housing,

a first face of the side faces of the base housing is formed with an insertion port into which the terminal is inserted, and the remaining three faces are formed in a sealed form.

2. The mini-cluster block of claim 1,

the inner surface of the cover housing forms a recessed pin groove for the insertion of the end of the terminal pin.

3. The mini-cluster block of claim 1,

the base housing includes a partition wall that divides an inner space of the base housing in parallel to form the insertion slot.

4. The mini-cluster block of claim 3,

a protruding end protruding from an upper face of the base housing is formed on an upper end portion of the partition wall,

the inner face of the cover housing forms a guide groove into which the protruding end is inserted.

5. The mini-cluster block of claim 3,

the partition wall is formed with a bend corresponding to the shape of the terminal.

6. The mini-cluster block of claim 1,

the inner surface of the cover shell comprises a protruding part which is formed in a protruding mode at a position corresponding to the inserting groove;

the protrusion is formed at a position corresponding to the rear of the terminal insertion portion of the terminal in the slot.

7. The mini-cluster block of claim 1,

the base shell is provided with a second surface opposite to the first surface and third surfaces on the other two sides,

the cover housing includes an extension portion that covers an upper face of the base housing and covers at least a portion of the second face and the third face.

8. The mini-cluster block of claim 7,

either side in the base shell with the cover shell forms the stationary blade, the opposite side forms combine to the joint portion of stationary blade.

9. The mini-cluster block of claim 8,

the fixing piece is formed on at least the third surface and protrudes outward from the third surface,

the clamping portion is formed on the position, corresponding to the fixing piece, of the extending portion.

10. The mini-cluster block of claim 9,

the clamping part is an opening formed at the boundary part of the inner surface of the cover shell and the extension part.

11. The mini-cluster block of claim 1,

the terminal, comprising:

a terminal insertion portion through which the terminal pin is inserted; and

a crimping portion bonded to the wire,

the terminal insertion portion has a cylindrical shape in which an outer edge surface of the terminal pin is wrapped and the inside of the terminal insertion portion is vertically penetrated, and is formed in a structure that is closed in a direction in which the wire is coupled.

12. The mini-cluster block of claim 11,

the terminal insertion part forms a locking part combining the seam part,

the locking portion is formed in a direction of coupling the wires.

13. A hermetic compressor, characterized by comprising:

a hermetic terminal device penetrating the housing; and

the mini-cluster block of claim 1, bonded to the hermetic terminal device.

Background

The hermetic compressor is provided with a shell capable of sealing the inner space; a transmission mechanism including a compressor in the inner space of the housing; and a compression mechanism compressed by the transmission mechanism. In order to transmit an external power source to an internal transmission mechanism, the hermetic compressor is provided with a hermetic terminal (hermetic terminal) penetrating the casing, and a cluster block (cluster block) is coupled to the hermetic terminal outside the compressor.

However, with the recent miniaturization of the size of the hermetic compressor, the development of the cluster block as a small cluster block is also required. Also, foreign substances or oil and the like may permeate through the cluster block of the hermetic compressor, and development of a cluster block having improved waterproof and sealing properties is required.

The above background is the content of the present invention grasped or learned by the inventors during the development of the present invention, and should not be construed as necessarily requiring the commonly known technology disclosed before the present invention is applied.

Disclosure of Invention

Technical problem to be solved

An object of an embodiment is to provide a mini cluster block which is miniaturized and has excellent waterproof and sealing properties, and a hermetic compressor having the same.

The technical problems to be solved by the embodiments are not limited to the above-mentioned problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

Technical scheme for solving problems

The mini cluster block and the hermetic compressor having the same according to the embodiment are explained as follows.

A mini-cluster block comprising: a plurality of terminals one-to-one coupled to a plurality of terminal pins of the hermetic terminal device; a base housing formed with a plurality of slots for receiving the respective terminals, each of the slots being formed with a plurality of holes for the respective terminal pins to pass through; and a cover housing coupled to the base housing, an insertion opening into which the terminal is inserted being formed on a first surface among side surfaces of the base housing, and remaining three surfaces being formed in a sealing form.

According to one side, the inner surface of the cover housing may be formed with a recessed pin groove for insertion of the end of the terminal pin.

According to one side, the base housing may include a partition wall that divides the inner space of the base housing in parallel to form the insertion slot. A protruding end protruding from an upper surface of the base housing may be formed on an upper end portion of the partition wall, and a guide groove into which the protruding end is inserted may be formed on an inner surface of the cover housing. The partition wall may be formed with a bend corresponding to the shape of the terminal.

According to one side, the inner face of the cover housing may include a protrusion formed to protrude at a position corresponding to the slot; the protrusion may be formed at a position corresponding to the rear of the terminal insertion portion of the terminal in the slot.

According to one side, the base housing may have a second surface facing the first surface and third surfaces on the other two sides, and the cover housing may include an extension portion covering an upper surface of the base housing and covering at least a portion of the second and third surfaces. Either side of the base housing and the cover housing may be formed with a fixing piece, and the other side is formed with a catching portion coupled to the fixing piece. The fixing piece may be formed on at least the third surface and may be formed to protrude outward from the third surface, and the fastening portion may be formed at a position corresponding to the fixing piece on the extension portion. The engaging portion may be an opening formed at a boundary portion between the inner surface of the cover housing and the extension portion.

According to one aspect, the terminal may include: a terminal insertion portion through which the terminal pin is inserted; and a crimping part coupled to the wire, wherein the terminal insertion part may have a cylindrical shape in which an inner part thereof is penetrated up and down, wrapping an outer edge surface of the terminal pin, and may be formed in a structure closed in a direction of coupling the wire. The terminal insertion part may form a locking part that engages the seam part, the locking part being formed in a direction in which the wire is engaged.

In one aspect, the hermetic compressor including the mini cluster block according to the present embodiment may include a hermetic terminal device penetrating the casing; and a mini cluster block coupled to the hermetic terminal device.

ADVANTAGEOUS EFFECTS OF INVENTION

As described above, according to the embodiment, the mini cluster block is formed with two housings, which can make the structure simple and reduce the size. In addition, the terminal pins are completely inserted into the mini cluster block, so that the combination height between the mini cluster block and the sealed terminal device can be reduced.

The effects of the mini cluster block and the hermetic compressor having the same according to an embodiment are not limited to the above-described effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art through the following description.

Drawings

Fig. 1 is a perspective view showing a mini cluster block and a hermetic terminal device according to an embodiment.

Fig. 2 is a cross-sectional view of the mini cluster block and the hermetic terminal device taken along line ii-ii of fig. 1.

Fig. 3 is a perspective view of the mini cluster block of fig. 1 as viewed from the bottom.

Fig. 4 is an exploded perspective view of the mini-cluster block of fig. 3.

Fig. 5 is a perspective view of a terminal according to an embodiment.

Description of the reference numerals

10: sealed terminal device (hermetic terminal device)

11: terminal pin

100: mini cluster block

110: base shell

111: hole(s)

112. 112a, 112b, 112 c: inserting groove

111 d: partition part

113: partition wall

113 a: projecting end

114: side surface

114 a: first side

114 b: second surface

114 c: third side

115: insertion opening

116: cut-out part

117: fixing sheet

120: cover shell

120 a: inner face

121: pin groove (dent)

122: projection part

123: guiding groove

124: extension part

125: open end

126: cut-out part

127: clamping part

130: terminal with a terminal body

131: main body

131 a: terminal insertion part

132, 133: locking part

132a, 132 b: locking piece

134. 135, and (3) adding: crimping part (crimping)

Detailed Description

Embodiments are described in detail below with reference to the example drawings. When reference numerals are given to components in each drawing, the same components are denoted by the same reference numerals as much as possible even when they are shown in different drawings. In describing the embodiments, when it is judged that a detailed description of the related well-known art may unnecessarily obscure the embodiments, a detailed description thereof is omitted.

In addition, when describing the components of the embodiment, terms such as first, second, A, B, (a), (b), and the like may be used. These terms are only used to distinguish one constituent element from another constituent element, and are not used to limit the nature, order, and the like of the respective constituent elements. It should be understood that when one component is described as being "connected," "coupled," or "in contact with" another component, it can be directly connected or in contact with the other component, but it can also be understood as being "connected," "coupled," or "in contact with" the other component therebetween.

When a component has a function common to that of one embodiment, the component will be described with the same name in other embodiments. When no example is mentioned, the description of one embodiment can be applied to the other embodiments, and detailed description thereof is omitted.

Next, a mini-cluster block 100 according to an embodiment is explained with reference to fig. 1 to 5.

For reference, fig. 1 is a perspective view of a mini-cluster block 100 and a hermetic terminal device 10 according to an embodiment, and fig. 2 is a sectional view of the mini-cluster block 100 and the hermetic terminal device 10 taken along line ii-ii of fig. 1. Fig. 3 is a perspective view of the mini-cluster block 100 of fig. 1 as viewed from the bottom, fig. 4 is an exploded perspective view of the mini-cluster block 100, and fig. 5 is a perspective view of the terminal 130 according to an embodiment.

Referring to the drawings, a mini cluster block 100 is provided on a hermetic compressor (not shown).

In the following description, the hermetic compressor is simply referred to as a "compressor", and a detailed description of the structure thereof and the accompanying drawings are omitted.

The compressor has a driving mechanism (not shown) including a motor and a compression mechanism (not shown) compressed by the driving mechanism inside, and a hermetic terminal device 10 electrically connected with the outside is disposed to penetrate a casing of the compressor.

The sealed terminal device 10 has a plurality of terminal pins 11, and for example, three terminal pins 11 having a predetermined cylindrical shape may be arranged at intervals of 120 ° so as to penetrate the sealed terminal device 10. The terminal pin 11 penetrates the hermetic terminal device 10 and extends a predetermined distance from the upper portion to the lower portion.

The three terminal pins 11 are arranged in a triangular shape in the drawings as an example, but this is merely an example for convenience of explanation, and the number and arrangement of the terminal pins 11 are not limited to the drawings, and various modifications are possible. Further, the shape of the hermetic terminal device 10 may also be appropriately changed according to the number and arrangement of the terminal pins 11.

The mini cluster block 100 is formed of an insulating member including a base housing 110, a cover housing 120, and a plurality of terminals 130 combined with the terminal pins 11.

The base housing 110 accommodates a plurality of terminals 130 therein, and the terminal pins 11 penetrate the base housing 110. For example, the base housing 110 may be formed substantially as a right parallelepiped.

In the following description, among the 4 side surfaces 114 of the base housing 110, one surface into which the terminal 130 is inserted is a first surface 114a, one surface opposite to the first surface 114a is a second surface 114b, and the remaining two surfaces are third surfaces 114 c.

The base housing 110 is formed in a sealable manner. The first surface 114a is formed with an insertion port 115 into which the terminal 130 is inserted into the insertion slot 112, and the second surface 114b and the third surface 114c are formed as a sealing structure.

The base housing 110 forms a plurality of insertion grooves 112 into which the terminals 130 are inserted through partition walls 113 parallel to each other.

The partition wall 113 has the same height as the base housing 110 and is perpendicular to the bottom surface of the base housing 110. Also, two partition walls 113 are formed in parallel with the direction in which the terminals 130 are inserted into the base housing 110, thereby forming three insertion grooves 112.

A protruding end 113a may be formed at an upper end of the partition wall 113. The protruding end 113a is higher than the base housing 110 in height, and thus may protrude a prescribed height from the upper surface of the base housing 110. The protruding end 113a corresponds to the guide groove 123 of the cover case 120, and is insertable into the guide groove 123. Thus, by forming the protruding end 113a on the partition wall 113, it is possible to improve the sealing property between the base housing 110 and the cover housing 120 and to improve the degree of separation between the insertion grooves 112.

The face of the partition wall 113 facing the inside of the slot 112 may be a concave-convex or curved shape corresponding to the shape of the terminal 130. Thus, when the terminal 130 is inserted into the insertion slot 112, the terminal 130 is attached to the partition wall 113 in the shape thereof, and can be supported more stably.

The three slots 112 can accommodate the terminals 130 in parallel along the length direction, and each slot 112 is formed with a hole 111 through which the terminal pin 11 passes.

Here, the base housing 110 may be such that the triangular side formed by the terminal pins 11 (i.e., two terminal pins 11 are arranged with the apex (the remaining terminal pins 11) located far) is located on the insertion port 115 side in the direction of inserting the terminal 130. Further, the first slot 112a formed in the center of the base housing 110 is farthest from the first surface 114a with respect to the slot 112. In order to make the end portions of the second insertion grooves 112b and 112c on both sides of the first insertion groove 112a identical to the first insertion groove 112a, a partition 111d is formed between the second insertion grooves 112b and 112c and the second surface 114b, thereby making the second surface 114b a plane. The first surface 114a may be recessed to the start end of the first slot 112a to form a notch 116.

Based on the above formation, the base housing 110 has a rectangular cross section, and the lengths of the spaces for accommodating the terminals 130 in the three slots 112a, 112b, and 112c are substantially the same.

On one hand, the terminal insertion portion 131a of the terminal 130 inserted into the terminal pin 11 may be larger than a portion where the wire W is coupled. Thus, the portions of the second slots 112b and 112c of the base housing 110 in which the terminal insertion portions 131a are provided may be portions arranged in the first slot 112a in which the crimping portions 134 and 135 are provided. Also, in order to minimize the interval between the terminals 130, the partition wall 113 of the base housing 110 having a substantially uniform thickness has a bend in accordance with the shape of the terminals 130. That is, as shown in the figure, the partition wall 113 may be formed with a curved surface protruding toward the first insertion groove 112a side, whereby a portion of the second insertion grooves 112b, 112c having an enlarged cross section (for example, a portion where the terminal insertion portion 131a is provided) is a portion of the adjacent first insertion groove 112a having a reduced cross section.

With the above formation, the base housing 110 arranges the three terminals 130 side by side on the same plane in the length direction while minimizing the interval between the terminals 130, the size of the mini-cluster block 100 can be minimized.

However, the shapes of the insertion groove 112 and the partition wall 113 shown in the drawings are merely for convenience of description and are not limited to the drawings.

A fixing piece 117 is formed on the side surface 114 of the base housing 110, and the fixing piece 117 is used to fix the cover housing 120. For example, the fixing piece 117 protrudes outward on the third face 114 c. The fixing piece 117 is formed near the upper end of the third surface 114c, and two fixing pieces may be formed at a predetermined interval on each third surface 114 c.

The cover housing 120 covers the upper side of the base housing 110. The cover housing 120 is formed with an extension 124 bent from an edge of the cover housing 120 by a predetermined length to cover at least a part of the side surface 114 of the base housing 110. For example, the extension 124 extends vertically along the edge of the cover housing 120, and may be the same height as or lower than the base housing 110.

The extension 124 is not formed in the cover housing 120 at a portion corresponding to the first surface 114a, and does not block the insertion port 115 of the base housing 110.

The cover housing 120 may be cut out to form a cut-out portion 126 in a size and shape corresponding to the cut-out portion 116 at a portion corresponding to the cut-out portion 116 of the base housing 110.

The extension portion 124 is formed with a catching portion 127 coupled with the fixing piece 117 of the base housing 110. For example, the snap-in portion 127 may be formed at a boundary between a surface (hereinafter referred to as "inner surface") 120a of the cover housing 120 facing the base housing 110 and the extension portion 124. The engaging portion 127 may have an opening shape of a predetermined size penetrating the extension portion 124.

Here, when the cover housing 120 is coupled to the base housing 110, the extension portion 124 expands based on its own elasticity so that the fixing piece 117 is inserted into the catching portion 127. After the fixing piece 117 is inserted into the engaging portion 127, the extension portion 124 is attached to the side surface of the base housing 110 again by the elasticity of the extension portion 124.

On one hand, the example in the drawing is that two fixing pieces 117 and clamping parts 127 are formed on each of two sides, but this is only for convenience of explanation, and the number and positions of the fixing pieces 117 and the clamping parts 127 are not limited to the drawing. The fixing piece 117 and the engaging portion 127 may be formed on the second surface 114b of the base housing 110 and the second surface 114b of the cover housing 120.

Also, in the example of the above embodiment, the fixing piece 117 is formed on the base housing 110, and the snap-in portion 127 is formed on the cover housing 120; on the other hand, the base housing 110 may be formed with a snap-fit portion, and the cover housing 120 may be formed with a fixing piece.

The inner surface 120a of the cover housing 120 forms a pin groove 121 into which the end of the terminal pin 11 is inserted. For example, the pin groove 121 may correspond to the end shape of the terminal pin 11 and be recessed by a prescribed depth.

In which the terminal pin 11 is inserted into the pin groove 121 when the mini cluster block 100 is coupled to the terminal pin 11, the total height of the mini cluster block 100 coupled to the terminal pin 11 can be reduced. Further, if the end of the terminal pin 11 is coupled at a position separated from the pin groove 121, the mini cluster block 100 and the hermetic terminal device 10 may be spaced apart from each other or may not be completely coupled to each other, and thus, whether or not the terminal pin 11 is coupled to the mini cluster block 100 can be confirmed accurately.

A protrusion 122 protruding by a predetermined height is formed on the inner surface 120a of the cover housing 120 at a position corresponding to the insertion groove 112.

The protruding portion 122 is located at a position corresponding to the rear of the first locking portion 133 or the crimping portion 134 of the terminal 130 in the direction in which the terminal 130 is inserted into the base housing 110. The protrusion 122 prevents the terminal 130 from being reversely separated from the socket 112 by interfering with the first locking portion 133 and the terminal insertion portion 131 a.

A guide groove 123 corresponding to the partition wall 113 and the projecting end 113a is formed on the inner surface 120a of the cover case 120. The guide groove 123 corresponds in shape to the protruding end 113a, into which the protruding end 113a is inserted.

The terminal 130 is formed with a terminal insertion portion 131a into which the terminal pin 11 is inserted at one end portion inserted into the insertion groove 112, and crimping portions (crimping)134, 135 that fix the wire W are formed along a longitudinal direction of the body 131.

The terminal insertion portion 131a may have a predetermined height such that it has a shape of wrapping a part of the outer edge surface of the terminal pin 11 and has an inner portion opened up and down to allow the terminal pin 11 to penetrate therethrough. For example, the terminal insertion portion 131a may be formed in a cylindrical shape corresponding to the outer edge surface of the terminal pin 11 and in a shape standing upright in the longitudinal direction (or the wire W direction) of the body 131.

The terminal insertion portion 131a may be a tube shape in which a member forming the main body 131 is divided into two upright portions. At this time, locking portions 132, 133 are formed at a seam (i.e., a portion where two members meet) of the terminal insertion portion 131 a.

The locking parts 132, 133 may be formed at two positions along the circumference of the terminal insertion part 131a, for example, a second locking part 133 is formed at the end of the terminal 130 in the length direction, and the first locking part 132 is formed at the opposite side of the second locking part 133. Among them, the first locking part 133 forms a structure of closing the terminal insertion part 131a in the direction of coupling the wire W.

The locking parts 132, 133 are formed with locking pieces 132a, 132b, the locking pieces 132a, 132b are extended by a prescribed length at the seam of the terminal insertion part 131a and formed in a thin band shape, and the locking parts 132, 133 may be formed as the locking pieces 132a, 132b are engaged with each other, thereby closing the terminal insertion part 131 a. The locking pieces 132a and 132b are formed integrally with the terminal insertion portion 131a and can be engaged with each other at free end portions. For example, the locking members 132a, 132b may be formed asThe fonts are bent or formed in a hook shape so as to be engaged with each other.

The pressure-bonding portions 134 and 135 are formed in a U-shaped bent shape, and press and deform the wire W in a state where the wire W is inserted into the bent portion, thereby press-fixing the outer edge surface of the wire W. Also, the crimping portions 134, 135 may be formed at two positions along the length direction of the body 131.

However, the shapes of the crimping portions 134, 135 are not limited to the drawings, and various modifications are possible in nature.

According to the present embodiment, the mini cluster block 100 is composed of two parts, i.e., the base housing 110 and the cover housing 120, and thus the structure can be simplified and the size can be reduced.

The terminal pins 11 are inserted into the pin grooves 121 of the cover case 120, so that the terminal pins 11 can be coupled to the mini cluster block 100 at a precise position, and the coupling height between the hermetic terminal device 10 and the mini cluster block 100 is reduced.

In summary, the embodiments have been described with limited reference to the accompanying drawings, and those skilled in the art will be able to make various modifications and variations based on the description. For example, the techniques described may be performed in a different order than the methods described, and/or the components described may be combined or combined in a different manner than the methods described, or substituted or replaced with other components or equivalents, to achieve suitable results.

Therefore, the idea of the present invention should not be limited to the illustrated embodiments, and the claims, its equivalents, or their equivalent variations described later are included in the scope of the idea of the present invention.