Plug-in type connector for bus and bus duct plug-in connection method

Abstract

The invention discloses a plug-in type connector for a bus and a bus duct plug-in connection method, the plug-in type connector for the bus comprises a connecting plug corresponding to an end connecting piece, and the connecting plug is electrically connected with the end connecting piece and is used for conducting electric power; wherein the connecting plug comprises a plug body matched with the end connecting piece, conductor sheets are arranged on the two side faces of the plug body, elastic sheets are arranged on the outer sides of the conductor sheets, and the conductor sheets are electrically connected with the end connecting piece. According to the plug-in type connector for the bus, through the deformable conductor sheet, the elastic sheet with elasticity is additionally arranged outside the conductor sheet, and pressure applied to the conductor sheet by the elastic sheet is utilized, so that the conductor sheet is automatically clamped on the conductor end of the bus, a bolt fastening step is thoroughly omitted, plug-and-play is realized, and the installation efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the technical field of busbar trunking connectors, and more particularly to a plug-in connector for busbars and a plug-in connection method for busbar trunking. Background Technology

[0002] Currently, in busbar systems, connector assemblies are commonly used to connect one busbar section to another. The most common technology is the bolt-fastened connector. This type of connector typically consists of three main parts: the busbar connector conductor, an insulating block for holding the busbar connector conductor, and connector bolts. During installation, the busbar conductor is inserted between the insulating block and the connector conductor, and then one or more high-strength bolts are used to apply sufficient torque manually or with power tools to create a tight, low-contact-resistance electrical connection between the connector conductor and the surface of the busbar conductor.

[0003] However, existing technologies have the following problems in use: 1. Low installation efficiency: The bolt tightening process is cumbersome, time-consuming, and labor-intensive, requiring sufficient operating space, and the torque is difficult to control evenly, greatly reducing the installation efficiency of the power distribution system. 2. Connection reliability depends on human factors: The electrical quality of the connection is highly dependent on the installer's sense of responsibility and skill level. Insufficient bolt torque can lead to increased contact resistance, causing localized overheating and posing a fire hazard; excessive torque may damage the busbar conductor or cause metal fatigue. 3. Requires specialized tools: Specialized tools such as torque wrenches are usually needed to ensure installation quality, increasing construction costs and complexity. Summary of the Invention

[0004] In view of the problems of inconvenient installation and reliance on manual experience in existing busbar plug-in connectors, the present invention is proposed.

[0005] Therefore, one object of the present invention is to provide a plug-in connector for busbars, which aims to reduce installation difficulty and improve installation efficiency.

[0006] To address the aforementioned technical problem of susceptibility to vibration damage, the present invention provides the following technical solution: a plug-in connector for busbars, comprising a connector plug corresponding to the end connector, wherein the connector plug is connected to the end connector; wherein the connector plug comprises a plug body adapted to the end connector, the plug body having conductor plates on both sides, an elastic plate being disposed on the outer side of the conductor plates, the conductor plates being connected to the end connector, and the elastic plate applying a clamping force toward the end connector to the conductor plates.

[0007] In a preferred embodiment of the plug-in connector for busbars described in this invention, the top end of the plug body is provided with a conductive portion corresponding to the end connector, the tail end of the conductor piece is fixedly connected to the conductive portion, and the tail end of the elastic piece is fixedly connected to the tail end of the conductor piece.

[0008] In a preferred embodiment of the plug-in connector for busbars described in this invention, the conductor sheet and the elastic sheet are bent toward the centerline of the plug body, and the outer wall of the conductor sheet is in contact with the inner wall of the elastic sheet.

[0009] As a preferred embodiment of the plug-in connector for busbars described in this invention, the conductor sheet and the elastic sheet are each divided into three parts: a connecting part at the tail, a clamping part in the middle, and a guiding part at the top; the connecting part of the conductor sheet is fixedly connected to the plug body, and the connecting part of the elastic sheet is fixedly connected to the connecting part of the conductor sheet.

[0010] As a preferred embodiment of the plug-in connector for busbars described in this invention, the clamping portion and the connecting portion of the conductor sheet and the elastic sheet are provided with an angle α, wherein the angle α is less than or equal to 10° and greater than 5°.

[0011] As a preferred embodiment of the plug-in connector for busbars according to the present invention, wherein: the end connector includes a plurality of conductor ends extending from the end of the busbar groove, and each conductor end is provided with a positioning block on its outer side for fixing the position of the conductor end; the width of the conductor end is w1, the width of the conductive part is w2, w1 is less than or equal to w2, the initial opening width of the guide part is w3, the maximum opening width is w4, w3 is less than w4, and w4 > w2 ≥ w1 > w3; an insulating plug is provided between each plug body, and a limiting plug is provided at the top of the insulating plug, the limiting plug being plugged into the positioning block.

[0012] As a preferred embodiment of the plug-in connector for busbars described in this invention, each end of the insulating plug-in component corresponds to a positioning block; The positioning block includes a partition and a limiting part. The partition is disposed between each of the conductor ends, and the limiting part is disposed in the middle of the partition and faces the limiting plug. The limiting part is inserted and engaged with the limiting plug.

[0013] In a preferred embodiment of the plug-in connector for busbars described in this invention, a conductor fixing member is provided between the connecting plugs, and the conductor fixing member is electrically connected to the connecting plug.

[0014] As a preferred embodiment of the plug-in connector for busbars described in this invention, the busbar cover plate is provided on the upper and lower surfaces of the busbar groove, the busbar cover plate has a protective wall on the outer side of the conductor end, the plug cover plate is provided on both the upper and lower surfaces of the connector, the plug cover plate completely covers the end connector and the connector, and the plug cover plate is connected to the protective wall.

[0015] Another object of the present invention is to provide a busbar trunking plug-in connection method, applicable to the above-mentioned busbar plug-in connector, wherein: it includes the following steps, Align the guide of a connector with the conductor end of one side busbar groove, apply slight pressure in the insertion direction to open the conductor plate and the elastic plate to a predetermined angle. Continue pushing the connector until the conductor piece is in full contact with the conductor end. At this point, the elastic force generated by the elastic piece will press the conductor piece tightly against both sides of the conductor end. Repeat the above steps to insert another connector into the busbar groove on the other side until the conductor piece is in full contact with the conductor end; Install a plug cover to seal the connection.

[0016] The beneficial effects of this invention are as follows: By using a deformable conductor sheet and adding an elastic sheet on the outside of the conductor sheet, the pressure applied by the elastic sheet automatically clamps the conductor sheet to the conductor end of the busbar, completely eliminating the need for bolt tightening and achieving plug-and-play functionality, greatly improving installation efficiency. The elastic contact finger connection method can also automatically compensate for tolerances and minor deformations, ensuring stable contact pressure. The spring characteristics ensure a continuous and uniform contact force on the surface of the busbar conductor end, maintaining an effective contact area and significantly reducing contact resistance. Even after long-term operation, if minor gaps occur due to thermal expansion and contraction, the elastic sheet can automatically press the conductor sheet to compensate, maintaining a low-resistance connection, avoiding the risk of overheating, and ensuring connection reliability no longer depends on manual torque. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall schematic diagram of the plug-in connector for busbars according to the present invention.

[0019] Figure 2 This is an overall schematic diagram of the connection of the plug-in connector for busbars of the present invention onto the busbar trough.

[0020] Figure 3 This is a top view of the plug-in connector for busbars according to the present invention.

[0021] Figure 4 for Figure 2 Enlarged view of point A.

[0022] Figure 5 This is a schematic diagram of the mounting cover of the plug-in connector for busbars according to the present invention.

[0023] Figure 6 for Figure 4 Enlarged view of point B.

[0024] Figure 7 This is a schematic diagram of the structure behind the mounting cover of the plug-in connector for busbars of the present invention. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1

[0030] Reference Figure 1 and Figure 2 The first embodiment of the present invention provides a plug-in connector for busbars. This device includes an end connector 100 disposed at the end of the busbar trough M to be connected, and a connector plug 200 corresponding to the end connector 100. The connector plug 200 is electrically connected to the end connector 100 for conducting electricity. The connector plug 200 includes a plug body 201 adapted to the end connector 100. Conductor pieces 202 are provided on both sides of the plug body 201. An elastic piece 203 is provided on the outer side of the conductor piece 202. The conductor piece 202 is connected to the end connector 100. The elastic piece 203 applies a clamping force to the conductor piece 202 toward the end connector 100.

[0031] Two connectors 200 are provided, each connecting to one of the two busbar troughs M to be connected. Each connector body 201 of the connector 200 is electrically connected to one busbar trough M and then connected to the corresponding connector body 201 of the connector 200 in the other busbar trough M via a conductor fixing member 300. The conductor fixing member 300 also serves to transmit power, transferring current from one connector 200 to the other. The two ends of the conductor fixing member 300 are electrically and mechanically fixed to the corresponding connector body 201 by crimping or welding.

[0032] refer to Figures 2-6 The plug body 201 has a conductive portion 201a at its top end, corresponding to the end connector 100. The tail of the conductor piece 202 is fixedly connected to the conductive portion 201a, and the tail of the elastic piece 203 is fixedly connected to the tail of the conductor piece 202. Typically, the conductor piece 202 and the busbar are made of copper. The elastic piece 203 ensures a tight connection between the conductor piece 202 and the busbar on the end connector 100 to meet electrical performance requirements. The conductor piece 202 and the elastic piece 203 are bent towards the centerline of the plug body 201. The outer wall of the conductor piece 202 fits against the inner wall of the elastic piece 203. Both the conductor piece 202 and the elastic piece 203 are divided into three parts: a connecting portion D1 at the tail, a clamping portion D2 in the middle, and a guiding portion D3 at the top. The connecting portion D1 of the conductor piece 202 is fixedly connected to the plug body 201, and the connecting portion D1 of the elastic piece 203 is fixedly connected to the connecting portion D1 of the conductor piece 202.

[0033] The clamping part D2 of the conductor sheet 202 and the connecting part D1 are provided with an angle α, and the guiding part D3 of the conductor sheet 202 and the elastic sheet 203 are provided with an angle β between the clamping part D2. The angle α is less than or equal to 10° and greater than 5°, and the angle β is greater than or equal to 120° and less than 135°.

[0034] The smaller angle α is chosen because the elastic force of a deformable object is proportional to its deformation, as expressed by the formula F=k∆L, where F is the elastic force, k is the elastic coefficient reflecting the object's elastic stiffness, and ∆L is the object's deformation. Since the material of the elastic sheet 203 is fixed, its elastic coefficient k is a fixed value based on the material. Changing the angle α changes ∆L, thus calculating the final elastic force F. If the angle α is too large, the applied force will be too great, potentially damaging the conductor sheet 202. If the angle is too small, sufficient force may not be applied, preventing the conductor sheet 202 from clamping the busbar. A larger angle β is chosen to guide the insertion of the end connector 100 more smoothly. If the angle is too small, the closer it is to 90°, the worse the guiding effect. If the angle is too large, the curve will be too gentle, requiring more precise alignment when aligning the connector 200 with the end connector 100, reducing efficiency.

[0035] The conductive part 201a of the plug body 201 is made of copper and is used to conduct electricity. Conductor sheets 202 of the same material are provided on both sides. The outer surface of the conductor sheet 202 has an elastic sheet 203 that can press the conductor sheet 202 inward. The conductor sheet 202 can be made of copper sheet with high elasticity and high conductivity, and the material of the elastic sheet 203 can be manganese steel sheet. Thus, when the plug 200 is connected to the end connector 100, each conductor sheet 202 is pressed tightly against both sides of the busbar groove M by the elastic sheet 203, maintaining close contact, thereby conducting electricity to the plug body 201. The plug body 201 then transmits the electricity to the plug body 201 on the other side through the conductor fixing member 300, and then to the busbar groove M on the other side through the conductor sheet 202 on the other side.

[0036] By setting the conductor piece 202 and the elastic piece 203 into a bent shape with an initial angle, and cooperating with the guide part D3 that bends in the opposite direction, when plugging in, the end of the busbar groove M first enters the guide part D3, pushing the conductor piece 202 and the elastic piece 203 to both sides, causing the conductor piece 202 and the elastic piece 203 to open. As the end of the busbar groove M gradually approaches the plug body 201, the elastic piece 203 can maintain the inward pressure on the conductor piece 202, thereby pressing the conductor piece 202 tightly against the end surface of the busbar groove M and increasing the frictional force, fixing the connector plug 200 and the busbar groove M to each other. The frictional force achieves the effect of fixing the connector plug 200 and the busbar groove M.

[0037] Example 2

[0038] Reference Figures 3-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the end connector 100 includes a plurality of conductor ends 101 extending out of the end of the busbar groove M, and each conductor end 101 is provided with a positioning block 102 on its outer side for fixing the position of the conductor end 101; an insulating plug 204 is provided between each plug body 201, and a limiting plug 205 is provided at the top of the insulating plug 204, which is inserted and engaged with the positioning block 102.

[0039] An insulating connector 204 has a positioning block 102 at each end; the positioning block 102 includes a partition 102a and a limiting part 102b. The partition 102a is disposed between each conductor end 101, and the limiting part 102b is disposed in the middle of the partition 102a and faces the limiting plug 205. The limiting part 102b is inserted into the limiting plug 205.

[0040] The width of the conductor end 101 is w1, the width of the conductive part 201a is w2, w1 is less than or equal to w2, the initial opening width of the guide part D3 is w3, the maximum opening width is w4, w3 is less than w4, and w4 > w2 ≥ w1 > w3.

[0041] The conductor end 101 is the end of the busbar used for connection. When the width of w1 is equal to w2, the outer surface of the conductor end 101 after insertion can be parallel to the conductor piece 202 after the conductor piece 202 is spread open. At this time, the contact area is the largest. If the width of w1 is greater than w2, the top of the conductor end 101 will spread the conductor piece 202 to both sides, causing the conductor piece 202 to be unable to contact the conductor end 101. If the width of w1 is less than w2, the elastic piece 203 can press the conductor piece 202 onto the conductor end 101 at the position of the clamping part D2 near the guide part D3, that is, at the opening position of the guide part D3, with a width of w3. w4 is the flared position of the guide part D3, used to guide the insertion during plugging. It must be greater than w3 to achieve the guiding effect.

[0042] The positioning block 102 is made of insulating material. The separator 102a includes two vertical plates that abut against the sidewalls of adjacent conductor ends 101, and horizontal plates disposed at both ends of the vertical plates that fit against the sidewalls of the conductor ends 101. The separator 102a separates adjacent conductor ends 101 and keeps the positions of the conductor ends 101 relatively fixed. The size of the separator is the same as the distance between each plug body 201 in the connector 200, so that the conductor ends 101 can correspond to the plug bodies 201. The limiting part 102b is a protruding plate that limits the plug 205 facing the insulating connector 204.

[0043] An insulating connector 204 is provided between each plug body 201. A limiting plug 205 is provided at the top of the insulating connector 204. The limiting plug 205 is inserted and engaged with the positioning block 102. The insulating connector 204 can separate each plug body 201 and maintain the relative insulation of each part. The limiting plug 205 and the insulating connector 204 are made of the same material. The limiting plug 205 is U-shaped. The opening of the limiting plug 205 is directly connected to the plate of the limiting part 102b.

[0044] The remaining structure is the same as that in Example 1.

[0045] Example 3

[0046] Reference Figures 1-7 This embodiment differs from the previous embodiment in that a conductor fixing member 300 is provided between the connector plugs 200, and the conductor fixing member 300 is electrically connected to the connector plugs 200.

[0047] When the connector 200 is connected to the end connector 100, each conductor piece 202 is pressed against both sides of the conductor end 101 by the elastic piece 203 to maintain close contact, thereby conducting electricity to the connector body 201. The connector body 201 then transmits the power to the connector body 201 on the other side through the conductor fixing member 300, and then to the busbar M on the other side through the conductor piece 202 on the other side.

[0048] The upper and lower surfaces of the busbar trunking M are also provided with busbar cover plates 103, and the busbar cover plates 103 are provided with protective walls 104 on the outside of the conductor ends 101.

[0049] The connector 200 has a plug cover 206 on both the upper and lower surfaces. The plug cover 206 completely covers the end connector 100 and the connector 200. The plug cover 206 is connected to the protective wall 104.

[0050] refer to Figure 2 and Figure 6 The busbar trunking M is also provided with busbar cover plates 103 on the top and bottom. The exposed end connectors 100 of the busbar cover plates 103 are used for insertion. A protective wall 104 is provided on the outer side of the conductor end 101. The upper and lower surfaces of the protective wall 104 are evenly fitted with the busbar cover plates 103. The protective wall 104 is used to form a sealing structure with the busbar cover plates 103. The upper and lower surfaces of the connector 200 are provided with connector cover plates 206. Figure 6 Only the lower half of the plug cover 206 is shown; the upper half is hidden for ease of display. Both the upper and lower plug covers 206 are connected to the protective wall 104, jointly sealing the connector 200. The plug cover 206 completely covers the end connector 100 and the connector 200. The plug cover 206 is connected to the protective wall 104, and both ends of the plug cover 206 are connected and fixed to the two busbar troughs M to be connected, thus protecting the end connector 100, the connector 200, and the conductor fixing member 300, forming a seal. Threaded holes are provided on the protective wall 104, and corresponding threaded holes are provided on the plug cover 206, facilitating the use of bolts to connect and fix the connector 200 to the busbar trough M.

[0051] During insertion, the conductor end 101 of the busbar M first enters the guide section, pushing the conductor piece 202 and the elastic piece 203 to both sides, causing the conductor piece 202 and the elastic piece 203 to open. As the conductor end 101 of the busbar M gradually approaches the plug body 201, the elastic piece 203 can maintain the inward pressure on the conductor piece 202, thereby pressing the conductor piece 202 tightly against the surface of the conductor end 101 and increasing the frictional force, thus fixing the connector 200 and the conductor end 101 to each other. The frictional force achieves the effect of fixing the connector 200 and the conductor end 101.

[0052] After the end connectors 100 of the two busbar trunking M to be connected are connected to the connector plug 200, the conductor fixing member 300 can start to conduct electricity. At this time, the plug cover 206 can be installed on the protective wall 104 of the busbar cover 103 by bolts. Thus, the plug cover 206, together with the busbar cover 103, protects the end connectors 100 and connector plug 200 inside, and also plays a sealing role to prevent external dust and other objects from entering the connection.

[0053] Example 4

[0054] A fourth embodiment of the present invention provides a busbar trunking plug-in connection method, comprising the following steps: Align the guide portion D3 of a connector 200 with the conductor end 101 of one side busbar groove M, and apply slight pressure in the insertion direction to open the conductor piece 202 and the elastic piece 203 to a predetermined angle. Continue pushing the connector 200 until the conductor piece 202 is in full contact with the conductor end 101. At this time, the elastic force generated by the elastic piece 203 will press the conductor piece 202 tightly against both sides of the conductor end 101. Repeat the above steps to insert another connector 200 into the busbar groove M on the other side until the conductor piece 202 is in full contact with the conductor end 101; Install plug cover plate 206 to seal the connection.

[0055] Since there are multiple busbars in the busbar trunking M, there are also multiple conductor ends 101. Correspondingly, there are also multiple plug bodies 201 on the connector 200, each corresponding to a conductor end 101. First, insert each plug body 201 on one side into each conductor end 101 of the busbar trunking M on that side. At this time, the connector 200 on the other side is tilted downward. After one side is installed and inserted in a corresponding manner, lift the connector 200 on the other side and repeat the steps to insert it into the conductor end 101 of the busbar trunking M on the other side.

[0056] After inserting the plugs from both sides, install the plug cover plates 206. Since the plug cover plates 206 are fixed to the busbar trough M with bolts, the connector 200 can be fixed in the center, i.e., fixed in the vertical direction, by installing the two plug cover plates 206. The connectors 200 on both sides are connected by conductor fixing members 300. The conductor fixing members 300 are fixed wires or copper busbars or other devices that can conduct electricity, i.e., fixed in the horizontal direction of the connector 200.

[0057] When the guides D3 of the connector 200 are aligned with the conductor end 101, the limit plugs 205 are aligned with the limit parts 102b of the positioning blocks 102. When the connector 200 is inserted, the conductor piece 202 is clamped on the conductor end 101, and the limit plugs 205 are also inserted into the positioning blocks 102 one by one, thus achieving fixation in another translational direction.

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A plug-in connector for busbars, characterized in that: include, A connector (200) corresponding to the end connector (100) is connected to the end connector (100); The connector (200) includes a connector body (201) adapted to the end connector (100). The connector body (201) has conductor pieces (202) on both sides. An elastic piece (203) is provided on the outer side of the conductor piece (202). The conductor piece (202) is connected to the end connector (100). The elastic piece (203) applies a clamping force to the conductor piece (202) toward the end connector (100).

2. The plug-in connector for busbars according to claim 1, characterized in that: The top end of the plug body (201) is provided with a conductive part (201a) corresponding to the end connector (100), the tail of the conductor piece (202) is fixedly connected to the conductive part (201a), and the tail of the elastic piece (203) is fixedly connected to the tail of the conductor piece (202).

3. The plug-in connector for busbars according to claim 2, characterized in that: The conductor sheet (202) and the elastic sheet (203) are bent toward the centerline of the plug body (201), and the outer wall of the conductor sheet (202) is in contact with the inner wall of the elastic sheet (203).

4. The plug-in connector for busbars according to claim 2 or 3, characterized in that: The conductor sheet (202) and the elastic sheet (203) are each divided into three parts: the connecting part (D1) at the tail, the clamping part (D2) in the middle, and the guiding part (D3) at the top. The connecting part (D1) of the conductor piece (202) is fixedly connected to the plug body (201), and the connecting part (D1) of the elastic piece (203) is fixedly connected to the connecting part (D1) of the conductor piece (202).

5. The plug-in connector for busbars according to claim 4, characterized in that: The clamping portion (D2) and connecting portion (D1) of the conductor sheet (202) and elastic sheet (203) are provided with an angle α; Where 5°<α≤10°.

6. The busbar plug-in connector according to any one of claims 2, 3 or 5, characterized in that: The end connector (100) includes a plurality of conductor ends (101) extending out of the end of the busbar groove. Each conductor end (101) is provided with a positioning block (102) on its outer side for fixing the position of the conductor end (101). The width of the conductor end (101) is w1, the width of the conductive part (201a) is w2, w1 is less than or equal to w2, the initial opening width of the guide part (D3) is w3, the maximum opening width is w4, w3 is less than w4, and w4 > w2 ≥ w1 > w3. An insulating connector (204) is provided between each of the plug bodies (201), and a limiting plug (205) is provided at the top of the insulating connector (204), and the limiting plug (205) is engaged with the positioning block (102).

7. The plug-in connector for busbars according to claim 6, characterized in that: Each end of one of the insulating connectors (204) corresponds to a positioning block (102). The positioning block (102) includes a partition (102a) and a limiting part (102b). The partition (102a) is disposed between each of the conductor ends (101), and the limiting part (102b) is disposed in the middle of the partition (102a) and faces the limiting plug (205). The limiting part (102b) is inserted into the limiting plug (205).

8. The busbar plug-in connector according to any one of claims 1, 2, 3, 5 or 7, characterized in that: A conductor fixing member (300) is provided between the connector plugs (200), and the conductor fixing member (300) is electrically connected to the connector plugs (200).

9. The plug-in connector for busbars according to claim 6, characterized in that: Busbar cover plates (103) are provided on the upper and lower surfaces of the busbar trunking (M). The busbar cover plates (103) have protective walls (104) on the outside of the conductor ends (101). The connector plug (200) has plug cover plates (206) on both the upper and lower surfaces. The plug cover plates (206) completely cover the end connector (100) and the connector plug (200). The plug cover plates (206) are connected to the protective walls (104).

10. A busbar trunking plug-in connection method, applicable to the busbar plug-in connector as described in any one of claims 1 to 9, characterized in that: Includes the following steps, Align the guide (D3) of a connector (200) with the conductor end (101) of a busbar groove (M) on one side, and apply slight pressure in the insertion direction to open the conductor piece (202) and the elastic piece (203) to a predetermined angle. Continue pushing the connector (200) until the conductor piece (202) is in full contact with the conductor end (101). At this time, the elastic force generated by the elastic piece (203) will press the conductor piece (202) tightly against both sides of the conductor end (101). Repeat the above steps to insert another connector (200) into the busbar groove (M) on the other side until the conductor piece (202) is in full contact with the conductor end (101); Install the plug cover (206) to seal the connection.

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