Electrical connection device

Abstract

This invention provides an electrical connection device comprising a first pressure plate, a second pressure plate, and a power bridging portion. The second pressure plate is disposed opposite to the first pressure plate. The power bridging portion is disposed between the first and second pressure plates. The power bridging portion includes an insulating structural member and a first bridging piece. The first bridging piece is disposed on a first surface of the insulating structural member, wherein the first bridging piece is electrically coupled to a first conductor piece and a second conductor piece. The first and second pressure plates provide compressive stress to the power bridging portion through a fixing member.

Description

[Technical Field]

[0001] This invention relates to a connection structure, and more particularly to a connection structure for connecting a power transmission bus. [Previous Technology]

[0002] In the construction of large or high-tech factories, a stable and secure power supply is crucial for the operation of machines and equipment. Compared to cables, power transmission busbars offer better space utilization and safety. Therefore, power transmission busbars capable of transmitting large amounts of electricity are now widely used to replace traditional cables.

[0003] When installing power transmission buses, it is necessary to connect power transmission buses from different sections to each other. When the area requiring power transmission buses is large, the number of buses that need to be connected also increases. If the installation method of the connection structure connecting two power transmission buses is too complex, it will lead to extended working hours and increased installation costs. Furthermore, a poorly designed connection structure will increase the resistance at the connection point or cause poor contact, resulting in power loss and heat generation.

[0004] In summary, how to save time in connecting power transmission busbars and reduce the complexity of the connection structure will also be the research goal of the connection structure of power transmission busbars. [Summary of the Invention]

[0005] One of the objectives of this invention is to provide a connection structure that is easy to install and avoids excessive resistance differences at the connection points.

[0006] This invention provides an electrical connection device, comprising a first pressure plate, a second pressure plate, and a power bridging portion. The second pressure plate is disposed opposite to the first pressure plate. The power bridging portion is disposed between the first pressure plate and the second pressure plate. The power bridging portion includes an insulating structural member and a first bridging piece. The first bridging piece is disposed on a first surface of the insulating structural member, wherein the first bridging piece is electrically coupled to a first conductor piece and a second conductor piece. The first pressure plate and the second pressure plate provide compressive stress to the power bridging portion through a fixing member.

[0007] As described above, the fastener provides compressive stress to the power bridging portion through the first and second pressure plates. The first bridging piece within the power bridging portion electrically couples the first and second conductor pieces, allowing power to be transmitted, for example, from the first conductor piece to the second conductor piece. This facilitates installation and avoids excessive resistance differences at the connection points. [Simplified Explanation of the Diagram]

[0024] Figure 1A is a schematic diagram of an electrical connection device in one embodiment of the present invention.

[0025] Figure 1B is an exploded view of an electrical connection device in one embodiment of the present invention.

[0026] Figure 2 is an exploded view of the connection between the electrical connection device and the power transmission bus in one embodiment of the present invention.

[0027] Figures 3A and 3B are schematic diagrams of an electrical connection device disposed outside a power transmission bus in one embodiment of the present invention.

[0028] Figure 4 is a schematic diagram of the arrangement of the insulating structure and the bridging piece in one embodiment of the present invention.

[0029] Figure 5 is a schematic diagram of the insulating structure in one embodiment of the present invention.

[0030] Figure 6 is a schematic diagram of the pressure plate having wings in one embodiment of the present invention.

[0031] Figures 7A to 7C are schematic diagrams of a gasket structure provided between the pressure plate and the power transmission busbar in one embodiment of the present invention.

[0032] Figures 8A to 8C are schematic diagrams of a pressure plate that can be disassembled into two parts in one embodiment of the present invention.

Implementation Method

[0008] The spirit of this disclosure will be clearly explained below with illustrations and detailed description. Anyone skilled in the art can make changes and modifications based on the techniques taught in this disclosure after understanding the embodiments of this disclosure, without departing from the spirit and scope of this disclosure.

[0009] The terms "first," "second," etc., used herein are not intended to specifically refer to any order or sequence, nor are they intended to limit the invention. They are merely used to distinguish elements or operations described using the same technical terms. The terms "comprising," "including," "having," "containing," etc., used herein are open-ended terms, meaning that they include but are not limited to.

[0010] The terms used herein, unless otherwise specified, generally have their ordinary meaning in the context of this art, the content of this disclosure, and the specific content. Certain terms used to describe this disclosure will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing this disclosure.

[0011] In the accompanying drawings, the thickness of layers, plates, regions, or spaces has been enlarged for clarity. Throughout the specification, the same reference numerals denote the same elements. It should 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 as having or having an intermediate element between the element and the other element. As used herein, "connection" can refer to a physical and / or electrical connection. Furthermore, to simplify the drawings and highlight what the drawings are intended to present, familiar structures or elements in the drawings may be drawn in a simplified schematic manner or presented in an abbreviated manner.

[0012] Referring to Figures 1A and 1B, the present invention provides an electrical connection device 1, comprising a first pressure plate 10, a second pressure plate 20, and a power bridging portion 30. The second pressure plate 20 is disposed opposite to the first pressure plate 10. Specifically, the first pressure plate 10 has a first inner surface 101, and the second pressure plate 20 has a second inner surface 201, which are opposite to each other. The first inner surface 101 and the second inner surface 201 are exemplarily defined as surfaces facing the power bridging portion 30. The materials of the first pressure plate 10 and the second pressure plate 20 may be, but are not limited to, metals such as aluminum or plastic; however, the present invention is not limited to the materials of the first pressure plate 10 and the second pressure plate 20. The power bridging portion 30 is disposed between the first pressure plate 10 and the second pressure plate 20. The power bridging portion 30 includes an insulating structural member 31 and a first bridging piece 32. The first bridging piece 32 is disposed on the first surface 311 of the insulating structural member 31. It should be noted that, as shown in Figures 1A and 1B, the power bridging section 30 may include a plurality of insulating structural members 31. The present invention is not limited to the number of insulating structural members 31. The material of the insulating structural members 31 may be, for example, but not limited to, non-conductive materials such as plastic or fiberglass. The material of the bridging piece 32 is a conductive material, preferably a highly conductive material such as copper, aluminum, or gold. It should be noted that the present invention is not limited to the materials of the insulating structural members 31 and / or the bridging piece 32.

[0013] Referring to Figure 2, the first bridging piece 32 is electrically coupled to the first conductor piece 41 and the second conductor piece 51. Specifically, the first conductor piece 41 and the second conductor piece 51 are respectively the first power transmission bus and the second power transmission bus. It should be noted that Figure 2 omits the housings and other non-essential details of the first power transmission bus 100 and the second power transmission bus 200 for the purpose of clearly showing the internal state. The power on the first conductor piece 41 can be transmitted to the second conductor piece 51 through the first bridging piece 32 or received by the second conductor piece 51. The electrical coupling method is, for example, but not limited to, direct contact between the first bridging piece 32 and the first conductor piece 41 and the second conductor piece 51. In this embodiment, the first pressure plate 10 and the second pressure plate 20 provide compressive stress F to the power bridging portion 30 through the fastener 60. Specifically, the fastener 60 is, for example, but not limited to, a fastener, clamp, or screw and nut, etc., a fixing and / or locking element. In the embodiment shown in Figure 2, the fixing member 60 includes a screw 61 and a nut 62. It should be noted that the present invention is not limited by the number of fixing members 60; the number of fixing members 60 is preferably even so that the compressive stress F can be evenly distributed to the power bridging portion 30. Furthermore, preferably, the direction of the compressive stress F is the normal direction of the first surface 311, and its range of action is preferably within the projection range of the first bridging piece 32 onto the first surface 311. The present invention uses the fixing member 60 to fix the first pressure plate 10 and the second pressure plate 20 and provides compressive stress F to the power bridging portion 30, thereby increasing the contact area between the first bridging piece 32 and the first conductor piece 41 and the second conductor piece 51, thus improving the efficiency of power transmission and reducing the probability of poor contact.

[0014] In one embodiment, the power bridging portion 30 further includes a second bridging piece 33 disposed on a second surface 312 opposite to the first surface 311 of the insulating structure 31. The second bridging piece 33 is electrically coupled to the third conductor piece 42 and the fourth conductor piece 52. Specifically, bridging pieces 32 and 33 can be disposed on both the first surface 311 and the second surface 312 of the insulating structure 31 to guide the power transmitted on different conductor pieces. In addition, the third conductor piece 42 and the fourth conductor piece 52 can also be electrically coupled through bridging pieces 35 on another set of insulating structure 34. Electrical coupling through multiple sets of bridging pieces 33 and 35 can reduce the resistance at the connection point and avoid risks such as poor contact or open circuit.

[0015] Referring to Figure 3A, a first conductor sheet 41 is disposed within a first housing 110, and a second conductor sheet 51 is disposed within a second housing 210. A connection 300 is located between the first housing 110 and the second housing 210. A first pressure plate 10 is disposed on the first outer side 301 of the connection 300, and a second pressure plate 20 is disposed on the second outer side 302 of the connection 300. Specifically, the first power transmission bus 100 includes a first housing 110 and the first conductor sheet 41 within the first housing 110. The second power transmission bus 200 includes a second housing 210 and the second conductor sheet 51 within the second housing 210. The first power transmission bus 100 and the second power transmission bus 200 are connected via an electrical connection device 1. The connection 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 outer side 301 and the second outer side 302 are exemplarily defined as the sides facing away from the power bridging portion 30. The arrangement of the first pressure plate 10 and the second pressure plate 20 on the outer sides 301 and 302 of the connection 300 can be seen in Figure 3B. Specifically, the first pressure plate 10 and the second pressure plate 20 provide compressive stress to the first housing 110 and the second housing 210 to connect the first power transmission bus 100 and the second power transmission bus 200. Through this arrangement, the first housing 110 and the second housing 210 can be directly used at the connection 300 between the first power transmission bus 100 and the second power transmission bus 200, thus saving time in installing a protective housing at the connection 300.

[0016] The fastener 60 can fix the first pressure plate 10, the second pressure plate 20, the first housing 110, and / or the second housing 210. In the embodiments shown in Figures 3A and 3B, the first pressure plate 10, the second pressure plate 20, the first housing 110, and / or the second housing 210 can have corresponding through holes, so that the screw 61 can pass through the through hole h11 of the first pressure plate 10, the through hole h21 of the first housing 110, and the through hole h31 of the second pressure plate 20, and then be secured with a nut 62, thereby stabilizing the first pressure plate 10, the second pressure plate 20, and the first housing 110. Similarly, the screw 61 can also pass through the through hole h12 of the first pressure plate 10, the through hole h22 of the second housing 210, and the through hole h32 of the second pressure plate 20, and then be secured with a nut 62 to stabilize the first pressure plate 10, the second pressure plate 20, and the second housing 210. It should be noted that the positions of the fasteners 60 in Figures 3A and 3B are merely examples and are not intended to limit the position or number of fasteners 60 in this invention. This arrangement not only provides compressive stress F to the power bridging portion 30 but also strengthens the connection structure between the first housing 110 and the second housing 210, preventing breakage or disengagement of the connection between the first housing 110 and the second housing 210 from the connection point 300. Furthermore, in this embodiment, the fasteners 60 are preferably positioned outside the projection range P of the first conductor sheet 41 and / or the second conductor sheet 51 onto the plane containing the first pressure plate 10 or the second pressure plate 20. Therefore, the fasteners 60 can be prevented from passing through the conductor sheets 41 and 51. In other words, the conductor sheets 41 and 51 do not need to be perforated to fix the first pressure plate 10, the second pressure plate 20, the first housing 110 and / or the second housing 210. Therefore, the resistance values ​​of the conductor sheets 41 and 51 will not be affected by the fastener 60, which can, for example but not limited to, reduce heat generation or power transmission loss.

[0017] In one embodiment, referring to FIG4, the first surface 311 of the insulating structural member 31 has a recessed structure 313, and the first bridging piece 32 is disposed within the recessed structure 313. Specifically, the shape and size of the recessed structure 313 match the first bridging piece 32. When the first bridging piece 32 is disposed on the first surface 311, the first bridging piece 32 can be embedded within the recessed structure 313. This can, for example, but not limited to, prevent the first bridging piece 32 from slipping or shifting, thus reducing the complexity and time required for installation.

[0018] In one embodiment, referring to Figure 5, an insulating sheet 70 is provided between the first conductor sheet 41 and the third conductor sheet 42. The insulating sheet is made of, but is not limited to, glass fiber or Mylar gasket. The insulating sheet 70 is used to isolate the first conductor sheet 41 and the third conductor sheet 42, preventing short circuits or electromagnetic interference between them. The insulating structure 31 has a clearance end 315 that extends between the first conductor sheet 41 and the insulating sheet 70. Specifically, there is a gap G between the first conductor sheet 41 and the insulating sheet 70, and the clearance end 315 extends into the gap G. It should be noted that Figure 5 is only illustrative and is not intended to limit the arrangement of the clearance end 315. In one embodiment, the clearance end 315 may also extend between the third conductor sheet 42 and the insulating sheet 70. By extending the clearance end 315 into the gap G between the first conductor sheet 41 and the insulating sheet 70, for example, but not limited to, the installation of the power bridging portion 30 can be made more stable.

[0019] In one embodiment, the first pressure plate 10 and the second pressure plate 20 may each be provided with wings. Referring to FIG6, taking the first pressure plate 10 as an example, the wing 15 is a structure protruding outward from the outer surface 102 of the first pressure plate 10, and the included angle θ between the wing 15 and the outer surface 102 is approximately 90 degrees (which may be adjusted depending on the installation state or manufacturing process). The wing 15 is preferably provided on the side of the outer surface 102 of the first pressure plate 10. Specifically, the outer surface 102 of the first pressure plate 10 has a first side 1021, a second side 1022, a third side 1023, and a fourth side 1024. The wing 15 may be provided at at least one of the first side 1021, the second side 1022, the third side 1023, and the fourth side 1024. Preferably, the wing 15 is preferably provided on opposite sides (for example, on the first side 1021 and the third side 1023 shown in FIG6). However, the present invention is not limited to the example of FIG6. For example, the number of wings 15 can be four, and they are respectively disposed on the first side 1021, the second side 1022, the third side 1023, and the fourth side 1024. By providing wings on the first pressure plate 10 and the second pressure plate 20, the structural strength of the first pressure plate 10 and the second pressure plate 20 can be improved, or force application points or support points can be provided for the installer to pick up / install. However, the purpose of providing wings is not limited to the above examples.

[0020] In one embodiment, the first pressure plate 10 and the second pressure plate 20 may each be provided with a gasket structure. Referring to Figures 7A to 7C, taking the first pressure plate 10 as an example, a gasket structure 16 may be provided on the inner surface 101 of the first pressure plate 10. When the first pressure plate 10 and the second pressure plate 20 are fixedly disposed on both sides of the connection 300, the gasket structure 16 will be located between the first outer side 301 of the connection 300 and the inner surface 101 of the first pressure plate 10 (as shown in Figures 7B and 7C). The gasket structure 16 may, for example, serve as a buffer between the first pressure plate 10 and / or the housings 110 and 210 of the power transmission busbars 100 and 200, or to distribute the positive force provided by the first pressure plate 10 evenly on the housings 110 and 210 of the power transmission busbars 100 and 200, but is not limited thereto. The gasket structure 16 can be configured as shown in Figure 7A. A through hole 103 is created in the first pressure plate 10, connecting the inner surface 101 and the outer surface 102. The gasket structure 16 is fixed to the inner surface 101 using a fixing material 161. The fixing material 161 and the gasket structure 16 can be rubber, plastic, or other suitable materials. It should be noted that the fixing material 161 and the gasket structure 16 are not necessarily two separate components. When the process allows (e.g., injection molding or mold), the fixing material 161 and the gasket structure 16 can be an integral structure. Furthermore, the invention is not limited to the method of setting the gasket structure 16 on the inner surface 101. For example, the gasket structure 16 can also be set between the first outer surface 301 of the connection 300 and the inner surface 101 of the first pressure plate 10 by means of adhesion or directly providing compressive stress. Furthermore, although the number of gasket structures 16 is four in the examples of Figures 7A to 7C, the present invention is not limited to the number of gasket structures 16. Any adjustment made by those skilled in the art to the number of gasket structures 16 based on the examples of Figures 7A and 7B should fall within the scope of the present invention.

[0021] In one embodiment, the first pressure plate 10 and the second pressure plate 20 can be separated into two parts. Taking the first pressure plate 10 as an example, referring to Figures 8A and 8B, the first pressure plate 10 can be separated into a first part 17 and a second part 18. The first part 17 and the second part 18 can be combined into the first pressure plate 10 by fasteners such as screws and nuts. Specifically, as shown in Figure 8A, one side 171 of the first part 17 and one side 181 of the second part 18 each have wings 172 and 182. The wings 172 and 182 each have through holes 1721, 1722, 1821 and 1822 in opposite positions. Fasteners can be used to combine and fix the first part 17 and the second part 18 through the through holes 1721, 1821 and 1722, 1822 (as shown in Figure 8B). In this embodiment, referring to FIG8C, the first component 17 corresponds to the first power transmission bus 100 and the second component 18 corresponds to the second power transmission bus 200. Similar to the first pressure plate 10, the second pressure plate 20 can also be divided into two separable components, respectively corresponding to the first power transmission bus 100 and the second power transmission bus 200. Through the separable first component 17 and second component 18, when the first power transmission bus 100 and the second power transmission bus 200 need to be separated or installed, the first pressure plate 10 and / or the second pressure plate 20 do not need to be completely removed; only the corresponding components need to be removed / installed. This achieves convenience during installation / removal and flexibility in construction.

[0022] In one embodiment, the interior of the electrical connection device may be filled with an insulating and waterproof colloid such as silicone, silicone, or epoxy resin. Specifically, the electrical bridging portion of the electrical connection device may fill the gaps between or around the plurality of bridging pieces with the aforementioned colloid. This can improve the waterproof and dustproof effect of the electrical connection device or improve the structural strength of the electrical connection device.

[0023] The present invention has been described by the above-described related embodiments; however, the above embodiments are merely examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and equivalent settings that fall within the spirit and scope of the claims are included within the scope of the present invention.

Claims

1. An electrical connection device, comprising: a first pressure plate; and a second pressure plate disposed opposite to the first pressure plate; The device includes an electrical bridging portion disposed between the first pressure plate and the second pressure plate. The electrical bridging portion includes: an insulating structural member; and a first bridging piece disposed on a first surface of the insulating structural member, wherein the first bridging piece is electrically coupled to a first conductor piece and a second conductor piece; wherein the first pressure plate and the second pressure plate provide a compressive stress to the electrical bridging portion through a fixing member.

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

3. The electrical connection device as claimed in claim 1, wherein the first surface of the insulating structure has a recessed structure, and the first bridging piece is disposed within the recessed structure.

4. The electrical connection device as claimed in claim 1, wherein the first conductor piece is disposed in a first housing, the second conductor piece is disposed in a second housing, there is a connection between the first housing and the second housing, the first pressure plate is disposed on a first outer side of the connection, and the second pressure plate is disposed on a second outer side of the connection.

5. The electrical connection device as claimed in claim 1, wherein the power bridging portion further comprises: A second bridging piece is disposed on a second surface opposite to the first surface of the insulating structure, and the second bridging piece is electrically coupled to a third conductor piece and a fourth conductor piece.

6. The electrical connection device as claimed in claim 5, wherein an insulating sheet is provided between the first conductor sheet and the third conductor sheet, the insulating structure having a clearance end that extends between the first conductor sheet and the insulating sheet.

7. The electrical connection device as claimed in claim 5, wherein an adhesive is present between the first bridging piece and the second bridging piece.

8. The electrical connection device as claimed in claim 1, wherein the direction of the compressive stress is the 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 disposed on an outer surface of the first pressure plate.

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

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

12. The electrical connection device as claimed in claim 4, wherein the first pressure plate is composed of a separable first component and a second component, wherein the first component corresponds to the first housing and the second component corresponds to the second housing.

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