KR100988788B1 - Assembling type busbar - Google Patents

Abstract

The present invention relates to an assembled busbar. The present invention includes a plate-shaped bus bar body 30, and one end is coupled to the bus bar body 30, the other end is coupled to the terminal portion of the counterpart and electrically connected to the unit terminals (40, 50). In addition, at least two fixing members 32 are provided at opposite ends of the bus bar body 30 or the unit terminals 40 and 50, and the fixing pieces 32 are provided to be offset from each other. Part of the unit terminals 40 and 50 or a part of the edge of the bus bar body 30 is inserted between the bus bar body 30 and the unit terminals 40 and 50 at a predetermined interval formed therebetween. Electrically connected. According to the present invention as described above, as long as the number of unit terminals 40, 50 as necessary according to the purpose and design purposes of the electronic products used bus bar 20 is coupled to the required position, the total weight of the bus bar 20 And there is an advantage that the material cost for manufacturing it is reduced.

Busbars, Terminals, Fixtures

Description

Assembly busbar {Assembling type busbar}

The present invention relates to a bus bar, and more particularly, to a bus bar having a terminal portion detachably provided for electrical connection with an electronic component.

In general, a bus bar is a conductor having a low impedance and a high current capacity, capable of connecting two or more circuits individually or connecting several like points in a system. Busbars are often used as common conductors to distribute power to multiple points.

1 illustrates an exploded perspective view of a junction box employing a bus box according to the prior art, and FIG. 2 illustrates a perspective view of a bus bar according to the prior art.

As shown in these drawings, the component coupling part 3 and the connector coupling part 5 are formed in the main cover 1 forming the skeleton of the junction box. The component coupling part 3 is a part in which a component (not shown, for example, a relay or a fuse) to be coupled with the bus bar 13 to be described below is seated. The connector coupling portion 5 is a portion to which a connector (not shown) configured to have a male terminal installed inside the connector housing is coupled.

The connector coupling portion 5 is partitioned by a guide fence 6 formed to protrude upward from the main cover 1. The guide fence 6 has a space in which the connector is seated. A plurality of through parts (not shown) are formed at the bottom of the connector coupling part 5 corresponding to the inside of the guide fence 6.

Bus bar assembly 10 is provided to be seated on the lower portion of the main cover (1). The bus bar assembly 10 includes a plurality of bus bars 13 installed on a plurality of insulating plates 12.

The bus bar 13 is provided with a body 13 ′ forming a frame between the insulating plates 12, and terminal portions 14 and 15 protruding from the edge of the body 13 ′. A part protrudes to the upper part of the insulating board 12 of the upper end. The terminal parts 14 and 15 are electrically connected to the components seated on the component coupling part 3.

In more detail, as shown in FIG. 2, the bus bar 13 is formed by bending a metal plate, and terminal portions 14 and 15 protrude from one side thereof. The terminal parts 14 and 15 may be further divided into a fork terminal 14 which is a kind of female terminal and a tap terminal 15 which is a kind of male terminal. Reference numeral 18 is a lower cover.

However, the prior art as described above has the following problems.

The bus bar 13 is made by punching and bending a plate-shaped metal material using a press die. In this case, a plurality of the terminal parts 14 and 15 are provided adjacent to each other in one bus bar 13, and the plurality of terminal parts 14 and 15 are electrically coupled with each other by forming a pair of terminal parts of a counterpart. Connected.

However, since the terminal parts 14 and 15 are relatively small in size compared to the body 13 ′ of the bus bar 13 and a plurality of the terminal parts 14 and 15 are adjacent to each other, the terminal parts 14 and 15 are formed by using a press mold. There is a problem that it is difficult to precisely mold 15). In addition, when the terminal parts 14 and 15 are not precisely molded according to the originally designed dimensions, the terminal parts 14 and 15 may not be electrically connected to the terminal parts of the counterparts in a stable manner, thereby causing a problem of poor operation reliability.

In addition, some of the plurality of terminal portions 14 and 15 of the bus bar 13 may not be used. For example, depending on the function of the junction box on which the bus bar 13 is mounted, the type and number of counterparts connected to the terminal parts 14 and 15 may be changed, and thus, may not be coupled to the counterpart part of the counterpart. Terminal portions 14 and 15 may be present. As such, the terminal parts 14 and 15 which are not coupled with the counterpart are practically useless, and have a problem of increasing the volume and weight of the bus bar 13 and increasing the manufacturing cost.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to provide a unit terminal which is provided in the bus bar and electrically connected to the counter terminal part of the counterpart to be manufactured separately from the bus bar.

Another object of the present invention is to provide an assembled bus bar which is detachably attached to a bus bar body in which a unit terminal electrically coupled to a counter terminal provided in a counterpart is provided.

According to a feature of the present invention for achieving the object as described above, the present invention is a plate-shaped bus bar body, one end is coupled to the bus bar body and the other end is coupled to the terminal unit of the counterpart and electrically connected; And a fixing piece provided on at least one side of the bus bar body or one end of the unit terminal facing each other, the fixing pieces being provided to be offset from each other, and the predetermined pieces formed therebetween. A part of the unit terminal or a part of the edge of the bus bar body is inserted between the gaps so that the bus bar body and the terminal terminal are electrically connected to each other, and the gap between the fixing pieces provided in a staggered manner is inserted therein. It is formed smaller than the thickness of the unit terminal or the bus bar body.

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A locking jaw is provided on an outer surface of the unit terminal.

The unit terminal or the bus bar body has a guide portion inclined so as to decrease in thickness toward the tip inserted into the gap between the fixing pieces.

The chamfer is formed in the unit terminal or the bus bar body so as to decrease in width toward the tip inserted into the gap between the fixing pieces.

An inclined portion corresponding to the guide portion is formed at the protruding tip of the fixing piece.

One end of the unit terminal coupled to the counterpart of the counterpart is provided with a pair of cantilever-shaped coupling legs on both sides so that the counterpart of the counterpart is inserted between the coupling legs.

According to the assembled bus bar according to the present invention, the following effects can be expected.

In the present invention, a unit terminal coupled to the counterpart of the counterpart and electrically connected to the counterpart is provided as a separate object and configured to be selectively detached from the busbar. Accordingly, since only the unit terminal can be manufactured separately, the accuracy of the unit terminal is improved, thereby making the electrical connection with the counterpart more stable, and as a result, the operation reliability of the electronic product in which the bus bar is installed is improved.

In addition, in the present invention, since the number of unit terminals required as necessary according to the purpose and design purpose of the electronic products in which the bus bar is used is combined, the total weight of the bus bar and the material cost for manufacturing the same are reduced. The bus bar body forming the skeleton can be used in common.

In addition, the present invention can be used by assembling the unit terminal, which is a separate object in the bus bar only in the required position, there is also an effect that the operator is less likely to assemble the opponent in the wrong position in the process of combining the opponent.

Hereinafter, a preferred embodiment of the assembled bus bar according to the present invention will be described in detail with reference to the accompanying drawings.

3 is an exploded perspective view showing the configuration of a preferred embodiment of the assembled bus bar according to the embodiment of the present invention, FIG. 4 is a cross-sectional view taken along line III-III 'of FIG. 3, and FIG. The configuration of the embodiment is shown in a perspective view, and FIG. 6 is a perspective view of the line VV ′ of FIG. 5. Hereinafter, a bus bar mounted in the junction box will be described as an example. For the other parts of the junction box except for the busbars, reference is made to the drawings and the contents of the background art.

As shown in these drawings, the assembled bus bar 20 (hereinafter referred to as a "bus bar") serves to electrically connect the various electrical appliances mounted inside the junction box and coupled to the junction box. That is, the bus bar 20 is electrically connected to various electric appliances such as a large current terminal, a relay, a mini-fuse, and these electric appliances are electrically connected to each other by a bus bar 20 made of metal.

The bus bar 20 is composed of a bus bar body 30 and unit terminals 40 and 50. First, the bus bar body 30 will be described. The bus bar body 30 is formed in a substantially plate shape, and is formed by punching and bending using a press mold or the like. The bus bar body 30 is a part seated on an insulating plate, most of which is shielded by the main cover 1 of the junction box and is not exposed to the outside.

The bus bar body 30 is provided with a fixing piece 32. The fixing piece 32 is formed by cutting a part of the edge of the bus bar body 30, and can be elastically deformed in a cantilever shape. At least two or more fixing pieces 32 are provided adjacent to each other, and adjacent fixing pieces 32 are provided to be bent to shift each other. For convenience of explanation, when referring to FIG. 3 as a reference, separate reference numerals of the respective fixing pieces 32 are given from the left side, and these are respectively fixed to the first fixing piece 32a, the second fixing piece 32b, and the third fixing piece. It will be referred to as piece 32c.

More specifically, as shown in FIG. 4, the fixing piece 32 is bent to protrude to both sides with respect to the bus bar body 30, and the coupling space 32 ′ is disposed between the fixing pieces 32. ) Is formed, and coupling portions 42 and 52 of unit terminals 40 and 50 to be described below are inserted into the coupling space 32 '. That is, the first fixing piece 32a and the second fixing piece 32b which are adjacent to each other are bent in an opposite direction to each other, and the second fixing piece 32b and the third fixing piece 32c are also opposite to each other. It is bent out of order. Accordingly, the first fixing piece 32a and the third fixing piece 32c are bent in the same direction.

In the present embodiment, a total of three fixing pieces 32 are provided to deviate from each other and adjacent fixing pieces 32, but the number of fixing pieces 32 may be two or four or more. Preferably, the fixing pieces 32 are provided with three or more so that the coupling parts 42 and 52 of the unit terminals 40 and 50 can be more stably fixed.

As shown in FIG. 3, a plurality of fixing pieces 32 may be provided, and a plurality of unit terminals 40 and 50 to be described below may also be combined. In the present embodiment, the fixing piece 32 comprises one unit of the first to third fixing pieces 32a, 32b, and 32c on the bus bar body 30, and a total of four units are provided.

As shown in FIG. 4, an inclined portion 33 is formed in the fixing piece 32. The inclined portion 33 corresponds to the guide portions 43 and 53 of the unit terminals 40 and 50 to be described below, and the unit terminals 40 and 50 can be easily inserted between the fixing pieces 32. It serves as a guide.

The bus bar body 30 is provided with a terminal connection piece 37. The terminal connection piece 37 is bent from the bus bar body 30, and a large current terminal (not shown) is seated on an upper surface or a lower surface of the terminal connecting piece 37 to be electrically connected. The terminal connection piece 37 is formed with a fastening hole 38 is fastened by a fastener together with the large current terminal.

 Unit buses 40 and 50 are coupled to the bus bar body 30. One end of each of the unit terminals 40 and 50 is coupled to the bus bar body 30, and the other end thereof is coupled to and electrically connected to a terminal portion of a counterpart (not shown).

In the present embodiment, the unit terminals 40 and 50 are divided into the tap terminal 40 and the fork terminal 50. First, the tap terminal 40 will be described. The tab terminal 40 is formed in a plate shape, one end thereof is provided with a connection portion 41 coupled with the terminal portion of the counterpart.

The other end of the tab terminal 40 is provided with a coupling part 42. The coupling part 42 is coupled to the fixing piece 32 of the bus bar body 30, and the locking jaw 42 ′ is provided on an outer surface thereof. The latching jaw 42 ′ is a portion that is hooked to an edge of an insertion hole (not shown) formed in the main cover 1 when the main cover 1 of the junction box is covered above the bus bar 20. That is, the locking jaw 42 'is hooked to the insertion hole of the main cover 1, the coupling portion 42 is exposed to the outside through the insertion hole can be coupled to the counterpart.

The tab terminal 40 is formed to be inclined so that the guide portion 43 becomes thinner toward the tip thereof. In addition, the chamfer 44 is formed on both sides of the guide portion 43 so that the width thereof becomes smaller toward the tip of the tab terminal 40. The guide portion 43 and the chamfer 44 guide the tab terminal 40 to be easily inserted into the fixing piece 32 of the bus bar body 30.

Next, the fork terminal 50 is formed in a plate shape similar to the tab terminal 40, both ends of the connecting leg 51 and the coupling portion inserted into the fixing piece 32 connected to the terminal portion of the counterpart ( 52). The connecting legs 51 are provided in a cantilever shape in pairs, and coupling slits 51 'into which the terminal portions of the counterpart are inserted are formed therebetween.

At this time, the fork terminal 50 is prevented from being separated from the bus bar body 30 by the front end of the connection leg 51 interferes with the insertion hole of the junction box to escape from the insertion hole. Of course, the locking jaw 42 ′ may be formed in the fork terminal 50 similarly to the tab terminal 40.

At this time, the spacing (l) between the fixing piece 32 is formed smaller than the thickness (L) of the unit terminals (40, 50). This is to allow the coupling parts 42 and 52 of the unit terminals 40 and 50 to be press-fitted between the fixing pieces 32 which are formed to be offset from each other and firmly fixed.

In Fig. 7, another embodiment of the present invention is shown in an exploded perspective view. As shown therein, the fixing pieces 142 and 152 may be provided in the unit terminals 140 and 150 unlike the above-described embodiments. That is, the unit terminals 140 and 150 are provided with fixing pieces 142 and 152, and the edges of the bus bar body 130 are formed in an uncut plate shape, so that the fixing pieces 142 and 152 cover a part of the outer surface of the bus bar body 130. Wrap unit terminals 140 and 150 and the bus bar body 130 may be coupled to each other.

Hereinafter, the operation of the assembled bus bar according to the present invention having the configuration as described above in detail. Hereinafter will be described based on the embodiment shown in FIG.

First, a process of assembling the bus bar body 30 and the unit terminals 40 and 50 will be described. An operator installs the bus bar body 30 in an insulating plate or a lower cover 18 of the junction box. In some cases, the bus bar body 30 may be fixed to the insulating plate or the lower cover 18 by using a separate fastener.

In this state, the worker grips the unit terminals 40 and 50 and couples them to the bus bar body 30. More precisely, the coupling parts 42 and 52 of the unit terminals 40 and 50 are inserted between the fixing pieces 32 of the bus bar body 30.

Since the plurality of fixing pieces 32 are provided to be offset from each other, a predetermined interval is formed therebetween, and the interval is formed smaller than the interval of the unit terminals 40 and 50, so that the operator may operate the unit terminals 40 and 50. Should be inserted with some elastic deformation. However, guide units 43 and 53 and chamfers 44 and 54 are formed in the unit terminals 40 and 50, and may be easily inserted between the fixing pieces 32.

In this case, the operator may combine the necessary number of terminal terminals 40, 50 to the required position according to the function and design purpose of the junction box. Accordingly, the unit terminals 40 and 50, which are not coupled to the counterparts of the counterpart, need not be coupled to the bus bar body 30, thereby reducing the overall weight of the bus bar 20 and making the bus bar 20 a material. Can be reduced.

As such, when the unit terminals 40 and 50 are coupled to the bus bar body 30, the operator couples the main cover 1 and the lower cover 18 to each other. In this process, the connection part 41 of the tab terminal 40 is exposed to the outside through the insertion hole of the main cover 1. At the same time, the locking jaw 42 'of the tab terminal 40 is hooked to the edge of the insertion hole, thereby preventing the tab terminal 40 from being separated from the bus bar body 30.

Finally, the operator couples the counterpart to the connection portion 41 and the connection leg 51 of the unit terminals (40, 50). More precisely, the terminal portion of the counterpart is coupled to the connecting portion 41 and the connecting leg 51 of the unit terminals 40 and 50. In this case, since the unit terminals 40 and 50 are provided only at necessary positions, there is less concern that an operator may misassemble the counterpart.

The scope of the present invention is not limited to the embodiments described above, but is defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self evident.

1 is an exploded perspective view showing the configuration of a junction box employing a bus price according to the prior art.

Figure 2 is a perspective view showing the configuration of a bus bar according to the prior art.

Figure 3 is an exploded perspective view showing the configuration of a preferred embodiment of the assembled bus bar according to the embodiment of the present invention.

4 is a cross-sectional view taken along line III-III ′ of FIG. 3.

5 is a perspective view showing the configuration of an embodiment of the present invention.

FIG. 6 is a perspective view taken along line VV ′ of FIG. 5. FIG.

Figure 7 is an exploded perspective view showing the configuration of another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

20: assembled bus bar 30: bus bar body

32: fixed piece 37: terminal connection piece

40: tap terminal 41: connection portion

42: engaging portion 42 ': locking jaw

43: guide portion 44: chamfer

50: fork terminal 51: connecting leg

52: coupling portion 53: guide portion

54: chamfer

Claims (8)

The bus bar body of the plate, A unit terminal having one end coupled to the bus bar body and the other end coupled to a terminal portion of the counterpart and electrically connected thereto; And a fixing piece provided on at least one side of the bus bar body or one end of the unit terminal facing each other so as to be elastically deformable. The fixing piece is provided to be offset from each other and a portion of the terminal terminal or a portion of the edge of the bus bar body is inserted between the predetermined interval formed therebetween, the bus bar body and the terminal terminal is electrically connected, The spacing between the fixing pieces provided in a zigzag to deviate from each other is smaller than the thickness of the unit terminal or the bus bar body inserted therein. delete delete The assembled bus bar of claim 1, wherein a locking jaw is provided on an outer surface of the unit terminal. The assembled bus bar of claim 4, wherein the unit terminal or the bus bar body has a guide portion inclined so as to decrease in thickness toward the tip inserted at intervals between the fixing pieces. 6. The assembled bus bar of claim 5, wherein a chamfer is formed to be inclined in the unit terminal or the bus bar body so as to decrease in width toward the tip inserted into the gap between the fixing pieces. 7. The assembled busbar of claim 6, wherein an inclined portion corresponding to the guide portion is formed at the protruding end of the fixing piece. 8. The assembled bus bar according to claim 7, wherein one end of the unit terminal coupled to the counterpart of the counterpart is provided with a pair of cantilever-shaped coupling legs on both sides thereof so that the counterpart of the counterpart is inserted between the connecting legs.

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