CN115911899A

CN115911899A - Electrical connection device

Info

Publication number: CN115911899A
Application number: CN202111437494.6A
Authority: CN
Inventors: 蔡清贤
Original assignee: TAIWAN BUSWAY CO Ltd
Current assignee: TAIWAN BUSWAY CO Ltd
Priority date: 2021-08-26
Filing date: 2021-11-30
Publication date: 2023-04-04
Also published as: TWI811775B; TW202310521A

Abstract

The invention provides an electric connecting device which comprises a first pressure plate, a second pressure plate and an electric bridging part. The second pressing plate is arranged opposite to the first pressing plate. The electric power bridging part is arranged between the first pressing plate and the second pressing plate. The power bridging portion includes an insulating structure and a first bridging piece. The first bridging piece is arranged on the first surface of the insulating structural member, wherein the first bridging piece is electrically coupled with the first conductor piece and the second conductor piece. The first pressing plate and the second pressing plate provide compressive stress to the electric bridge portion through the fixing piece.

Description

Electrical connection device

Technical Field

The present invention relates to a connecting structure, and more particularly, to a connecting structure for connecting power transmission bus bars.

Background

In the construction of large plants or high-tech plants, the provision of stable and safe power is critical to the operation of the machines or equipment in the plant. Compared with the arrangement of a cable, the arrangement of the power transmission bus bar has better space utilization and safety. Therefore, the conventional cable is replaced by a power transmission bus capable of transmitting large power.

When arranging the power transmission bus bars, it is necessary to connect the power bus bars of different segments to each other. When the range in which the power transmission bus bars need to be arranged is large, the number of power bus bars that need to be connected also increases. If the attachment structure for connecting two power transmission bus bars is too complicated in attachment manner, the man-hours will be prolonged, resulting in an increase in attachment cost. In addition, if the design of the connection structure is poor, the resistance at the connection is increased or the contact is poor, which results in power loss and heat generation.

In summary, how to save the time for connecting the power transmission bus and reduce the complexity of the connection structure is also a research goal of the connection structure of the power transmission bus.

Disclosure of Invention

The invention aims to provide a connection structure which is easy to install and avoids overlarge resistance difference at a connection part.

The invention provides an electric connecting device which comprises a first pressure plate, a second pressure plate and an electric bridging part. The second pressing plate is arranged opposite to the first pressing plate. The electric power bridging portion is arranged between the first pressing plate and the second pressing plate. The power bridging portion includes an insulating structure and a first bridging piece. The first bridging piece is arranged on the first surface of the insulating structural member, wherein the first bridging piece is electrically coupled with the first conductor piece and the second conductor piece. The first pressing plate and the second pressing plate provide compressive stress to the electric bridge portion through the fixing piece.

In some embodiments, the fixing member is disposed outside a projection range of a projection of the first conductor sheet onto a plane of the first pressing plate.

In some embodiments, the first face of the insulating structure has a recess structure, and the first bridge piece is disposed in the recess structure.

In some embodiments, the first conductor sheet is disposed in a first housing, the second conductor sheet is disposed in a second housing, a junction is formed between the first housing and the second housing, the first pressing plate is disposed at a first outer side of the junction, and the second pressing plate is disposed at a second outer side of the junction.

In some embodiments, the power bridge further comprises: the second bridging piece is arranged on a second surface of the insulating structural member, which is opposite to the first surface, and the second bridging piece is electrically coupled with a third conductor piece and a fourth conductor piece.

In some embodiments, an insulating sheet is disposed between the first conductive sheet and the third conductive sheet, and the insulating structure has a relief end portion extending between the first conductive sheet and the insulating sheet.

In some embodiments, a glue is disposed between the first bridging piece and the second bridging piece.

In some embodiments, the direction of the compressive stress is a normal direction of the first face.

In some embodiments, the first platen has at least one wing disposed on an outer face of the first platen.

In some embodiments, the outer surface of the first pressing plate has a first side and a second side opposite to each other, and the at least one wing portion is disposed on at least one of the first side and the second side.

In some embodiments, the first pressure plate has at least one pad structure disposed on an inner face of the first pressure plate facing the power bridge.

In some embodiments, the first pressing plate is a combination of a first component and a second component which are separable, wherein the first component corresponds to the first casing and the second component corresponds to the second casing.

As described above, the first pressure plate and the second pressure plate provide compressive stress to the power bridge portion through the fixing member. And electrically coupling the first and second conductor patches through a first bridge patch within the power bridge portion such that power may be transferred from the first conductor patch to the second conductor patch, for example. So as to achieve the purposes of easy installation and avoiding overlarge resistance difference at the connecting part.

Drawings

Fig. 1A is a schematic view of an electrical connection device according to an embodiment of the invention.

Fig. 1B is an exploded view of an electrical connection device according to an embodiment of the present invention.

Fig. 2 is an exploded view of an electrical connection device and a power transmission bus bar according to an embodiment of the present invention.

Fig. 3A and 3B are schematic views illustrating an electrical connection device disposed outside a power transmission bus according to an embodiment of the invention.

FIG. 4 is a schematic view of an arrangement of the insulating structural members and the bridge pieces according to an embodiment of the present invention.

Fig. 5 is a schematic view of an insulating structural member structure according to an embodiment of the invention.

FIG. 6 is a schematic view of a platen with wing portions according to an embodiment of the present invention.

Fig. 7A to 7C are schematic views illustrating a gasket structure disposed between a pressure plate and a power transmission bus according to an embodiment of the invention.

Fig. 8A to 8C are schematic diagrams illustrating a platen capable of being separated into two parts according to an embodiment of the present invention.

Description of the main element symbols:

1 electric connection device

10,20 pressing plate

15 wing part

16 gasket structure

161 securing material

17 first part

18 first part

101,201 inner face

102 outside the container

103 through hole

30 Power bridge

31,34 insulating structural member

311 side

313 concave part structure

315 avoidance tip

32,33,35 bridge piece

41,42,51,52 conductor strip

60 fixing piece

61 screw rod

62 nut

70 insulating sheet

h11, h12, h21, h22, h31, h32 perforations

100,200 power transmission bus

1001,2001 terminal

110,210 casing

Stress of F pressure

P projection range

Detailed Description

The spirit of the present disclosure will be described with reference to the accompanying drawings and specific embodiments, and any person skilled in the art, after understanding the embodiments of the present disclosure, may make changes and modifications to the technology taught by the present disclosure without departing from the spirit and scope of the present disclosure.

As used herein, the terms "first," "second," "8230," and the like, are not intended to be construed in a limiting sense, nor are they intended to be used in a limiting sense, but rather are intended to distinguish one element from another or from another element or operation described in the same technical term. As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in the context of the present disclosure, and in the context of a particular application. Certain words used to describe the disclosure of the invention are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure of the invention.

In the drawings, the thickness of layers, plates, regions or spaces, etc., are exaggerated for clarity. Like reference numerals refer to like elements throughout the specification. It will be understood that when an element such as a layer, plate, region or space is referred to as being "on" or "connected to" another element, it can be interpreted as being directly on or connected to the other element or intervening elements may be present between the element and the other element. As used herein, "connected" may refer to physical and/or electrical connections. Furthermore, in order to simplify and highlight the drawings, the conventional structures or elements in the drawings may be shown in a simplified schematic manner or may be omitted.

As shown in fig. 1A and 1B, the present invention provides an electrical connection device 1, which includes a first pressing plate 10, a second pressing plate 20 and an electrical bridge 30. The second presser plate 20 is disposed opposite to the first presser plate 10. Specifically, the first pressing plate 10 has a first inner surface 101, the second pressing plate 20 has a second inner surface 201, and the first inner surface 101 and the second inner surface 201 are opposite to each other, wherein the first inner surface 101 and the second inner surface 201 are exemplarily defined as surfaces facing the power bridge 30. The material of the first pressing plate 10 and the second pressing plate 20 can be, but is not limited to, metal, such as aluminum or plastic, however, the invention is not limited to the material of the first pressing plate 10 and the second pressing plate 20. The power bridge 30 is disposed between the first and

second platens

10, 20. The power bridge 30 includes an insulating structure 31 and a first bridge piece 32. The first bridge piece 32 is disposed on the first surface 311 of the insulating structure 31. It should be noted that, as shown in fig. 1A and 1B, the power bridge 30 may include a plurality of insulating structures 31. The present invention is not limited to the number of the insulating structural members 31. The material of the insulating structure 31 is, for example, but not limited to, a non-conductive material such as plastic or fiberglass. The material of the bridging pieces 32 is a conductive material, preferably a high-conductivity material such as copper, aluminum or gold. It should be noted that the present invention is not limited to the material of the insulating structure 31 and/or the bridge piece 32.

As shown in fig. 2, the first bridging piece 32 is electrically coupled to the first conductive piece 41 and the second conductive piece 51. Specifically, the first conductor piece 41 and the second conductor piece 51 are a first power transmission bus and a second power transmission bus, respectively. It should be noted that fig. 2 omits the housings of the first power transmission bus 100 and the second power transmission bus 200 and other unnecessary details for clarity of the internal state. Power on the first conductor patch 41 may be transmitted to the second conductor patch 51 through the first bridge patch 32 or received by the second conductor patch 51. The electrical coupling is, for example, but not limited to, the first bridge piece 32 directly contacts the first conductor piece 41 and the second conductor piece 51. In this embodiment, the first pressing plate 10 and the second pressing plate 20 provide the compressive stress F to the electric bridge 30 through the fixing member 60. Specifically, the fixing member 60 is, for example, but not limited to, a fastener, a clamp, a screw nut, or other fixing and/or locking elements. In the embodiment of fig. 2, the fastener 60 includes a threaded rod 61 and a nut 62. It should be noted that the number of the fixing members 60 is not limited, and the number of the fixing members 60 is preferably even, so that the compressive stress F can be uniformly distributed to the power bridge 30. In addition, preferably, the force application direction of the compressive stress F is a normal direction of the first surface 311 and the action range is preferably within a projection range of the first bridging piece 32 to the first surface 311. The fixing member 60 is used to fix the first pressing plate 10 and the second pressing plate 20 and provide the compressive stress F to the power bridging portion 30, so that the contact area between the first bridging piece 32 and the first conductor piece 41 and the second conductor piece 51 is increased or more closely attached, thereby improving the efficiency of power transmission and reducing the probability of poor contact.

In one embodiment, the power bridge 30 further includes a second bridge piece 33 disposed on a second surface 312 of the insulating structure 31 opposite to the first surface 311. The second bridge piece 33 is electrically coupled to the third conductive piece 42 and the fourth conductive piece 52. Specifically, the first side 311 and the second side 312 of the insulating structure 31 may be provided with a

bridge piece

31, 33 for guiding the power transmitted by different conductive pieces. In addition, the third conductive patch 42 and the fourth conductive patch 52 may also be electrically coupled through the bridge patch 35 of another set of the insulating structure 34. The electrical coupling through the multiple sets of

bridge pieces

33,35 can reduce the resistance at the connection and avoid the risk of bad contact or open circuit.

As shown in fig. 3A, the first conductor strip 41 is disposed in the first housing 110, the second conductor strip 51 is disposed in the second housing 210, a joint 300 is formed between the first housing 110 and the second housing 210, the first pressing plate 10 is disposed on a first outer side 301 of the joint 300, and the second pressing plate 20 is disposed on a second outer side 302 of the joint 300. Specifically, the first power transmission bus bar 100 includes a first housing 110 and a first conductor piece 41 inside the first housing 110. The second power transmission bus bar 200 includes a second housing 210 and a second conductor strip 51 inside the second housing 210. The first power transmission bus 100 and the second power transmission bus 200 are connected by the electrical connection device 1. The junction 300 is located at the intersection of one end 1001 of the first power transmission bus 100 and one end 2001 of the second power transmission bus 200. The first and second

outer sides

301, 302 are exemplarily defined as sides facing away from the power bridge 30. An embodiment in which the first pressure plate 10 and the second pressure plate 20 are disposed on the

outer sides

301, 302 of the joint 300 may be referred to in fig. 3B. Specifically, the first and second

pressing plates

10 and 20 provide compressive stress to the first and

second housings

110 and 210 to couple the first and second

power transmission buses

100 and 200, by which the first and

second housings

110 and 210 can be directly utilized at the junction 300 of the first and second

power transmission buses

100 and 200, so that time for providing a protective case at the junction 300 can be saved.

The fixing member 60 may fix the first pressing plate 10, the second pressing plate 20, the first case 110, and/or the second case 210. As shown in the embodiment of fig. 3A and 3B, the first pressing plate 10, the second pressing plate 20, the first casing 110 and/or the second casing 210 may be provided with corresponding through holes, so that the screw 61 may pass through the through hole h11 of the first pressing plate 10, the through hole h21 of the first casing 110 and the through hole h31 of the second pressing plate 20, and then be locked by the nut 62, thereby fixing the first pressing plate 10, the second pressing plate 20 and the first casing 110. Similarly, the screw 61 may be screwed through the through hole h12 of the first pressing plate 10, the through hole h22 of the second casing 210, and the through hole h32 of the second pressing plate 20, and then locked by the nut 62 to fix the first pressing plate 10, the second pressing plate 20, and the second casing 210. It should be noted that the installation positions of the fixing members 60 in fig. 3A and 3B are only examples, and the installation positions and the number of the fixing members 60 in the present invention are not limited. With this arrangement, not only the compressive stress F can be provided to the power bridge 30, but also the connecting structural strength of the first casing 110 and the second casing 210 can be stabilized, thereby preventing the connection between the first casing 110 and the second casing 210 from being broken or disconnected from the connection 300. In addition, in this embodiment, the position of the fixing member 60 is preferably set outside the projection range P of the first conductor strip 41 and/or the second conductor strip 51 projected onto the plane of the first pressing plate 10 or the second pressing plate 20. Thus, the fixing member 60 can be prevented from penetrating the

conductor pieces

41, 51. In other words, the

conductive sheets

41 and 51 can fix the first pressing plate 10, the second pressing plate 20, the first casing 110 and/or the second casing 210 without forming through holes, so that the resistance of the

conductive sheets

41 and 51 is not affected by the fixing member 60, for example, but not limited thereto, to achieve the effect of reducing heat generation or power transmission loss.

In one embodiment, as shown in fig. 4, the first surface 311 of the insulating structure 31 has a recess structure 313, and the first bridging piece 32 is disposed in the recess structure 313. Specifically, the shape and size of the recess structure 313 matches the first bridge piece 32. When the first bridge piece 32 is disposed on the first surface 311, the first bridge piece 32 may be embedded in the recess structure 313. It is possible to avoid, for example and without limitation, the first bridge piece 32 from slipping or shifting, and thus it is possible to reduce the complexity and man-hours for installation.

In one embodiment, as shown in fig. 5, an insulating sheet 70 is disposed between the first conductive sheet 41 and the third conductive sheet 42. The insulating sheet is made of, but not limited to, glass fiber or Mylar (Mylar) gasket, and the insulating sheet 70 is used to isolate the first conductor sheet 41 from the third conductor sheet 42, so as to avoid the problems of short circuit or electromagnetic interference between the first conductor sheet 41 and the third conductor sheet 42. The insulating structure 31 has a relief end portion 315, and the relief end portion 315 extends between the first conductor sheet 41 and the insulating sheet 70. Specifically, a gap G is provided between the first conductor piece 41 and the insulating piece 70, and the relief end portion 315 extends into the gap G. It should be noted that fig. 5 is merely an illustration, and does not limit the installation manner of the escape end portion 315. In one embodiment, the relief end 315 may also extend between the third conductive patch 42 and the insulating patch 70. By having the relief end 315 extend into the gap G between the first conductor sheet 41 and the insulating sheet 70, for example, but not limited to, the provision of the power bridge 30 may be made more robust.

In one embodiment, the first pressing plate 10 and the second pressing plate 20 may be respectively provided with a wing portion. Referring to fig. 6, taking the first pressing plate 10 as an example, the wing portion 15 is a structure protruding outward from the outer surface 102 of the first pressing plate 10, and an included angle θ between the wing portion 15 and the outer surface 102 is about 90 degrees (which can be adjusted depending on the installation state or process). The wing portions 15 are preferably disposed on the sides of the outer face 102 of the first platen 10. Specifically, the outer face 102 of the first platen 10 has a first side edge 1021, a second side edge 1022, a third side edge 1023, and a fourth side edge 1024. The wing portion 15 may be disposed at least one of the first side 1021, the second side 1022, the third side 1023, and the fourth side 1024. Preferably, the wings 15 are disposed on two opposite sides (e.g., the first side 1021 and the third side 1023 shown in fig. 6). However, the present invention is not limited to the example of fig. 6, for example, the number of the wings 15 may be four, and the wings are respectively disposed at the first side 1021, the second side 1022, the third side 1023 and the fourth side 1024. The wing portions are disposed on the first pressing plate 10 and the second pressing plate 20, for example, to improve the structural strength of the first pressing plate 10 and the second pressing plate 20, or to provide a force application point or a supporting point for an installer to take/install the pressing plate, but the purpose of the wing portions is not limited to the above examples.

In one embodiment, the first pressing plate 10 and the second pressing plate 20 may be respectively provided with a gasket structure. As shown in fig. 7A to 7C, taking the first pressing plate 10 as an example, the gasket structure 16 may be provided on the inner surface 101 of the first pressing plate 10. When the first pressing plate 10 and the second pressing plate 20 are fixedly disposed on both sides of the joint 300, the gasket structure 16 will be located between the first outer side 301 of the joint 300 and the inner surface 101 of the first pressing plate 10 (as shown in fig. 7B and 7C). The spacer structure 16 may, for example, serve as a buffer between the first pressure plate 10 and/or the housings 110,210 of the power transmission buses 100,200 or an effect of allowing the positive force provided by the first pressure plate 10 to be averagely applied to the housings 110,210 of the power transmission buses 100,200, but is not limited thereto. As shown in fig. 7A, the gasket structure 16 may be disposed in a manner such that the gasket structure 16 is fixed to the inner surface 101 by a fixing member 161 through a through hole 103 of the first presser plate 10, which provides communication between the inner surface 101 and the outer surface 102. The securing material 161 and the spacer structure 16 may be rubber, plastic, or other suitable materials. It should be noted that the fixing material 161 and the spacer structure 16 are not necessarily two separate elements, and the fixing material 161 and the spacer structure 16 may be an integral structure when the process allows (e.g. injection molding or mold). The present invention is not limited to the manner in which the gasket structure 16 is disposed on the inner surface 101, and the gasket structure 16 may be disposed between the first outer side 301 of the joint 300 and the inner surface 101 of the first pressing plate 10 by adhesion or direct compressive stress. In addition, although the number of the pad structures 16 is four in the examples of fig. 7A to 7C, the invention is not limited to the number of the pad structures 16, and any adjustment of the number of the pad structures 16 by a person skilled in the art according to the examples of fig. 7A and 7B should fall within the scope of the invention.

In one embodiment, the first pressing plate 10 and the second pressing plate 20 can be separated into two parts. Taking the first pressing plate 10 as an example, as shown in fig. 8A and 8B, the first pressing plate 10 can be separated into a first part 17 and a second part 18. The first member 17 and the second member 18 may be combined into the first presser plate 10 by fixing members such as a screw nut set. Specifically, as shown in fig. 8A, one side 171 of the first member 17 and one side 181 of the second member 18 have

wing portions

172 and 182, respectively. The

wings

172, 182 each have opposing through

holes

1721, 1722, 1821 and 1822, and the fasteners can couple and fasten the first component 17 and the second component 18 through the through

hole pairs

1721, 1821 and 1722 and 1822 (as shown in fig. 8B). In this embodiment, as shown in fig. 8C, the first member 17 is disposed corresponding to the first power transmission bus 100 and the second member 18 is disposed corresponding to the second power transmission bus 200. Similar to the first presser plate 10, the second presser plate 20 may be divided into two separable parts and disposed corresponding to the first power transmission bus 100 and the second power transmission bus 200, respectively. With the first member 17 and the second member 18 being separable, when the first power transmission bus bar 100 is to be separated from or attached to the second power transmission bus bar 200, the first presser plate 10 and/or the second presser plate 20 may not be completely removed, and only the corresponding member may be removed/attached. Achieving the convenience of mounting/dismounting and the construction flexibility.

In one embodiment, the electrical connection device may be filled with an insulating and waterproof sealant such as silicone, silicon, epoxy resin, or the like. Specifically, the electric bridge portion of the electrical connection device may be filled with the glue to the plurality of bridge pieces or the surrounding gap. Therefore, the waterproof and dustproof effect of the electric connection device can be improved or the structural strength of the electric connection device can be improved.

The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It must be noted that the embodiments disclosed in the invention have not limited the scope of the invention. On the contrary, the spirit and scope of the invention are to be construed broadly and include all modifications and equivalents.

Claims

1. An electric connecting device is characterized by comprising a first pressure plate, a second pressure plate and an electric bridging part;

the second pressure plate is arranged opposite to the first pressure plate; the power bridge is disposed between the first pressing plate and the second pressing plate, and includes:

an insulating structural member; and

a first bridging piece disposed on a first surface of the insulating structure, wherein the first bridging piece is electrically coupled to a first conductor piece and a second conductor piece;

the first pressing plate and the second pressing plate provide a compressive stress to the electric bridge part through a fixing piece.

2. The electrical connection device as claimed in claim 1, wherein the fixing member is disposed outside a projection range of the first conductor sheet projected onto a plane of the first pressing plate.

3. The electrical connector as claimed in claim 1, wherein the first side of the insulating structure has a recess structure, and the first bridging piece is disposed in the recess structure.

4. The electrical connection device of claim 1, wherein the first conductor strip is disposed in a first housing, the second conductor strip is disposed in a second housing, a junction is formed between the first housing and the second housing, the first press plate is disposed on a first outer side of the junction, and the second press plate is disposed on a second outer side of the junction.

5. The electrical connection device as recited in claim 1, wherein the electrical bridge further comprises:

the second bridging piece is arranged on a second surface of the insulating structural member, which is opposite to the first surface, and the second bridging piece is electrically coupled with a third conductor piece and a fourth conductor piece.

6. The electrical connection device of claim 5, wherein an insulating sheet is disposed between the first conductor sheet and the third conductor sheet, the insulating structure having a relief end portion extending between the first conductor sheet and the insulating sheet.

7. The electrical connection device as claimed in claim 5, wherein the first bridging piece and the second bridging piece have glue therebetween.

8. The electrical connection device as claimed in claim 1, wherein the direction of the compressive stress is a normal direction of the first surface.

9. The electrical connection device as claimed in claim 1 wherein the first pressure plate has at least one wing portion disposed on an outer face of the first pressure plate.

10. The electrical connector as claimed in claim 9, wherein the outer surface of the first press plate has a first side and a second side opposite to each other, and the at least one wing portion is disposed at the first side and/or the second side.

11. The electrical connection device as claimed in claim 1, wherein the first pressing plate has at least one pad structure disposed on an inner surface of the first pressing plate facing the electrical bridge.

12. The electrical connector of claim 4 wherein the first pressure plate is formed by a first and a second separable parts, wherein the first part corresponds to the first housing and the second part corresponds to the second housing.