Bus connection assembly

Abstract

The utility model discloses a bus connecting assembly, which comprises a male head and a rear end connecting assembly, and the male head is connected with the rear end connecting assembly in an inserted manner. The male head is provided with a first through hole used for penetrating through the core rod in the axial direction, and one end, close to the rear end connecting assembly, of the male head is provided with a first inserting part. The rear end connecting assembly is axially provided with a second through hole for the core rod to penetrate through, and one end, facing the male head, of the rear end connecting assembly is provided with a first insertion port. The first plugging port is matched with the first plugging part, and the male head is fixedly connected with the rear end connecting assembly through plugging. The rear end connecting assembly is composed of a female head or composed of a female head and at least one multiplexing section. Different forming modes of the bus connecting assembly can be selected according to different use length requirements, and the bus connecting assemblies with different lengths are formed by using different numbers of multiplexing sections, so that the change and allocation of various typical sizes are realized.

Description

Technical Field

[0001] The utility model relates to the field of electrical connectors, and particularly relates to a bus bar connection assembly. Background Art

[0002] The traditional rubber bus bar structure is usually formed by die casting and is used for current transmission in the power system. Limited by the die structure, injection method, forming method and rubber material characteristics, the cavity size of the same set of dies is fixed, and only rubber products of the same size can be produced, which cannot meet the setting of multiple sizes. Therefore, bus bar structures of each size need to be formed by die casting using separate dies, resulting in the production of multiple sets of dies during the production process, disassembling, switching and installing the dies, increasing the production cost and reducing the production efficiency. At the same time, in order to meet the different length requirements of customers, it is necessary to store bus bars of multiple sizes, increasing the inventory management and logistics costs. Content of the Utility Model

[0003] The purpose of the utility model is to solve the above-mentioned deficiencies of the prior art, and provide a spliced bus bar connection assembly, which can reduce the number of dies while meeting different length requirements, and reduce the production and storage costs.

[0004] The utility model provides a bus bar connection assembly, including: a male head and a rear-end connection assembly, the male head is inserted into the rear-end connection assembly;

[0005] The male head is axially provided with a first through hole for passing through a mandrel, and one end of the male head close to the rear-end connection assembly has a first insertion part;

[0006] The rear-end connection assembly is axially provided with a second through hole for passing through a mandrel, the second through hole is communicated with the first through hole, one end of the rear-end connection assembly facing the male head is provided with a first insertion port, and the first insertion port is communicated with the second through hole;

[0007] The first insertion port is adapted to the first insertion part, and the first insertion port is inserted into the first insertion part to realize the fixed connection between the male head and the rear-end connection assembly.

[0008] In one embodiment, the first insertion part is a frustum structure, and the cross-sectional diameter of one end face of the first insertion part close to the rear-end connection assembly is smaller than the cross-sectional diameter of one end face of the first insertion part far from the rear-end connection assembly.

[0009] In one embodiment, the rear-end connection assembly includes a female head, the female head is axially provided with a female head through hole, and one end of the female head facing the male head is provided with a female head insertion port, and the female head insertion port is communicated with the female head through hole.

[0010] In one embodiment, the female socket interface is adapted to the first plugging portion, and the female socket interface is plugged into the first plugging portion to realize the fixed connection between the female head and the male head.

[0011] In one embodiment, the rear-end connection component further includes at least one multiplexing section, and the multiplexing section is disposed between the male head and the female head.

[0012] In one embodiment, the multiplexing section is axially provided with a multiplexing through hole, and the multiplexing through hole communicates with the female head through hole to jointly form the second through hole;

[0013] One end of the multiplexing section facing the male head is provided with a multiplexing interface, and the multiplexing interface communicates with the multiplexing through hole;

[0014] One end of the multiplexing section facing the female head has a second plugging portion adapted to the female socket interface.

[0015] In one embodiment, the first plugging portion and the second plugging portion have the same shape and size; the female socket interface and the multiplexing interface have the same shape and size.

[0016] In one embodiment, the outer circumferential surface of the male head and the rear-end connection component has an outer conductive spray coating; the inner wall of the first through hole and the second through hole has an inner conductive spray coating.

[0017] In one embodiment, the bus connection component further includes a heat shrinkable tube, and the heat shrinkable tube covers the outer periphery of the bus connection component and fits with the outer surfaces of the male head and the rear-end connection component.

[0018] The bus connection component of the technical solution of the present utility model includes a male head and a rear-end connection component, and the male head is plugged into the rear-end connection component. The male head is axially provided with a first through hole for passing through a core rod, and one end of the male head close to the rear-end connection component has a first plugging portion. The rear-end connection component is axially provided with a second through hole for passing through a core rod, and one end of the rear-end connection component facing the male head is provided with a first socket interface. The first socket interface is adapted to the first plugging portion, and the fixed connection between the male head and the rear-end connection component is realized through plugging. The rear-end connection component is composed of a female head, or composed of a female head and at least one multiplexing section. Different composition methods of the bus connection component can be selected according to different usage length requirements, and different lengths of bus connection components can be formed by using different numbers of multiplexing sections to realize the modification and allocation of various typical sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 is the front view of an embodiment of the bus connection assembly of the present invention;

[0021] Figure 2 is the exploded view (multi-segment type) of an embodiment of the bus connection assembly of the present invention;

[0022] Figure 3 is the exploded view (two-segment type) of an embodiment of the bus connection assembly of the present invention;

[0023] Figure 4 is the front view of the male head of an embodiment of the bus connection assembly of the present invention;

[0024] Figure 5 is the three-dimensional structure diagram of the male head of an embodiment of the bus connection assembly of the present invention;

[0025] Figure 6 is the front view of the female head of an embodiment of the bus connection assembly of the present invention;

[0026] Figure 7 is the three-dimensional structure diagram of the female head of an embodiment of the bus connection assembly of the present invention;

[0027] Figure 8 is the front view of the multi-connection segment of an embodiment of the bus connection assembly of the present invention;

[0028] Figure 9 is the three-dimensional structure diagram of the multi-connection segment of an embodiment of the bus connection assembly of the present invention;

[0029] Explanation of the reference numerals in the drawings:

[0030] Label Name Label Name Label Name 1 Male head 21a Female head through hole 222 Multi-connection body 1a First through hole 21b Female head insertion interface 3 Core rod 11 First insertion part 211 Female head body 4 Outer conductive spray coating 12 Male head body 22 Multi-connection section 5 Inner conductive spray coating 2 Rear end connection component 22a Multi-connection through hole 6 Heat shrinkable tube 2b First insertion interface 22b Multi-connection interface 21 Female head 221 Second insertion part

[0031] The realization of the object of the present invention, functional features and advantages will be further described in conjunction with the embodiments and with reference to the drawings. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship, movement conditions, etc. between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0034] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0036] Traditional rubber busbar structures are usually formed by die casting and are used for current transmission in power systems. Limited by the die structure, injection method, molding method, and rubber material properties, the cavity size of the same set of dies is fixed, and only rubber products of the same size can be produced, unable to meet multiple size settings. Therefore, separate dies are required for the die casting of busbar structures of each size, resulting in the need to manufacture multiple sets of dies during the production process, disassembling, switching, and installing the dies, increasing production costs and reducing production efficiency. At the same time, to meet the different length requirements of customers, it is necessary to store busbars of multiple sizes, increasing inventory management and logistics costs.

[0037] The present utility model proposes a busbar connection component. Please refer to Figures 1 to 9 , the busbar connection component includes a male head 1 and a rear-end connection component 2, and the male head 1 is inserted into the rear-end connection component 2; the male head 1 is axially provided with a first through hole 1a for passing through a core rod 3, and one end of the male head 1 close to the rear-end connection component 2 has a first insertion portion 11; the rear-end connection component 2 is axially provided with a second through hole for passing through the core rod 3, the second through hole is communicated with the first through hole 1a, and one end of the rear-end connection component 2 facing the male head 1 is provided with a first insertion opening 2b, and the first insertion opening 2b is communicated with the second through hole; the first insertion opening 2b is adapted to the first insertion portion 11, and the male head 1 and the rear-end connection component 2 are fixedly connected through the first insertion opening 2b and the first insertion portion 11.

[0038] In this embodiment, both the male head 1 and the rear-end connection component 2 are made of insulating rubber material and are formed by die casting, having good insulation performance and current-carrying capacity. The male head 1 has a cylindrical male head body 12, and the first insertion portion 11 is coaxially arranged at one end of the male head body 12 close to the rear-end connection component 2. The busbar connection component includes a core rod 3, and the core rod 3 is made of a conductive material. The male head 1 is axially provided with a first through hole 1a, and the rear-end connection component 2 is axially provided with a second through hole. The core rod 3 passes through the first through hole 1a and the second through hole and is installed in the busbar connection component. Preferably, the first through hole 1a and the second through hole have the same inner diameter, and the inner diameter size matches the outer diameter size of the core rod 3. One end of the rear-end connection component 2 facing the male head 1 is provided with a first insertion opening 2b that matches the first insertion portion 11, and the first insertion opening 2b is communicated with the second through hole. It can be understood that during assembly, the male head 1 is installed at a position close to the end of the core rod 3, the rear-end connection component 2 is inserted from the other end of the core rod 3, the core rod 3 passes through the second through hole, and the rear-end connection component 2 moves continuously along the axis of the core rod 3 towards the male head 1 until the first insertion portion 11 is in close contact with the first insertion opening 2b, ensuring the fixed connection between the male head 1 and the rear-end connection component 2.

[0039] Furthermore, please refer to Figure 2 and Figure 4, the first plugging part 11 is in a frustum structure, and the cross-sectional diameter of the end face of the first plugging part 11 close to the side of the rear end connecting component 2 is smaller than the cross-sectional diameter of the end face of the first plugging part 11 far from the rear end connecting component 2.

[0040] In this embodiment, the first plugging part 11 adopts a frustum structure with a certain inclination on its circumferential side. The cross-sectional diameter of the end face of the first plugging part 11 close to the side of the rear end connecting component 2 is smaller than the cross-sectional diameter of the end face of the first plugging part 11 close to the male head body 12. The first plugging port 2b matches the first plugging part 11. It can be understood that the first plugging port 2b is a frustum-shaped groove opened inwards on the end face of the rear end connecting component 2 facing the male head 1, with the groove opening diameter larger than the groove bottom diameter, and the inclination of the groove side wall matches the circumferential inclination of the first plugging part 11, facilitating the assembly of the male head 1 and the rear end connecting component 2 and ensuring the tight fit between the first plugging part 11 and the first plugging port 2b.

[0041] Furthermore, please refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 , the rear end connecting component 2 includes a female head 21. The female head 21 is axially provided with a female head through hole 21a, and one end of the female head 21 facing the male head 1 is provided with a female head plugging port 21b, and the female head plugging port 21b communicates with the female head through hole 21a.

[0042] Specifically, the rear end connecting component 2 includes a female head 21, which also adopts an insulating rubber material and is formed by die casting, having good insulation performance and current-carrying capacity. The female head 21 has a cylindrical female head body 211. The female head 21 is axially provided with a female head through hole 21a. It can be understood that the female head through hole 21a is a part of the second through hole. One end of the female head body 211 facing the male head 1 is provided with a female head plugging port 21b, and the female head plugging port 21b is a frustum-shaped groove opened inwards on the end face of the female head 21 facing the male head 1, with the groove opening diameter larger than the groove bottom diameter.

[0043] A specific embodiment of the present utility model is proposed. Please refer to Figure 3 , the female head plugging port 21b is adapted to the first plugging part 11, and the female head 21 and the male head 1 are fixedly connected through the female head plugging port 21b and the first plugging part 11.

[0044] In this embodiment, the busbar connection component includes a male head 1 and a female head 21. The male head 1 and the female head 21 are installed on the mandrel 3. The inclination of the side wall of the female head plugging port 21b matches the inclination of the side wall of the first plugging part 11, and the female head plugging port 21b is in tight fit with the first plugging part 11 to realize the fixed connection between the female head 21 and the male head 1. At this time, the female head plugging port 21b is the first plugging port 2b.

[0045] An embodiment of the present utility model is proposed. Please refer to Figure 1 and Figure 2 , the rear-end connection component 2 further includes at least one multiplexing section 22, and the multiplexing section 22 is arranged between the male head 1 and the female head 21.

[0046] Specifically, the multiplexing section 22 is made of insulating rubber material and is formed by die casting, having good insulation performance and current-carrying capacity. The multiplexing section 22 is arranged between the male head 1 and the female head 21. It can be understood that according to the size matching requirements of the electrical cabinet during actual use, one or more multiplexing sections 22 can be arranged between the male head 1 and the female head 21. When using one multiplexing section 22, one end of the multiplexing section 22 is connected to the male head 1 and the other end is connected to the female head 21, forming a three-section busbar structure. When using multiple multiplexing sections 22, the multiple multiplexing sections 22 are connected in series to form a multi-section structure. One end of the multi-section structure is connected to the male head 1 and the other end is connected to the female head 21, forming a multi-section busbar structure. This multi-section busbar structure can perform different numbers of superpositions of the multiplexing sections 22 according to different length requirements of actual assembly, realizing the size change and allocation of the busbar connection component. When a line fault occurs in the busbar during use, the busbar will be damaged by discharge and part of the connection component will be damaged. At this time, only the damaged part in the multi-section busbar structure needs to be replaced to achieve the rapid repair of the busbar connection component.

[0047] Furthermore, please refer to Figure 8 and Figure 9 , the multiplexing section 22 is axially provided with a multiplexing through hole 22a, and the multiplexing through hole 22a is communicated with the female head through hole 21a to jointly form a second through hole; one end of the multiplexing section 22 facing the male head 1 is provided with a multiplexing interface 22b, and the multiplexing interface 22b is communicated with the multiplexing through hole 22a; one end of the multiplexing section 22 facing the female head 21 has a second plugging portion 221 adapted to the female head plugging interface 21b.

[0048] In this embodiment, the rear-end connection component 2 is composed of at least one multiplexing segment 22 and a female head 21. The multiplexing segment 22 is axially provided with a multiplexing through-hole 22a. The mandrel 3 passes through the multiplexing through-hole 22a. Preferably, the inner diameter of the multiplexing through-hole 22a matches the outer diameter of the mandrel 3. A plurality of multiplexing segments 22 are connected in series to form a multi-segment structure, and a plurality of multiplexing through-holes 22a communicate with each other. The multiplexing through-hole 22a communicates with the female-head through-hole 21a to jointly form a second through-hole. It can be understood that the multiplexing through-hole 22a and the female-head through-hole 21a have the same inner diameter, and this inner diameter matches the outer diameter of the mandrel 3. The multiplexing segment 22 has a cylindrical multiplexing main body 222. The end surface of the multiplexing main body 222 facing the male head 1 is inwardly provided with a multiplexing interface 22b, and the multiplexing interface 22b communicates with the multiplexing through-hole 22a. At this time, the multiplexing interface 22b of the multiplexing segment 22 adjacent to the male head 1 is the first insertion interface 2b. One end of the multiplexing main body 222 facing the female head 21 has a second insertion portion 221. The second insertion portion 221 is adapted to the female-head insertion interface 21b. The second insertion portion 221 adopts a frustum structure, and its peripheral side has a certain inclination. The cross-sectional diameter of the end surface of the second insertion portion 221 close to the female head 21 is smaller than the cross-sectional diameter of the end surface of the second insertion portion 221 close to the multiplexing main body 222. The inclination of the side wall of the female-head insertion interface 21b matches the inclination of the side wall of the second insertion portion 221, and the female-head insertion interface 21b is in close fit with the second insertion portion 221 to realize the fixed connection between the female head 21 and the multiplexing segment 22. When the rear-end connection component 2 is composed of one multiplexing segment 22 and one female head 21, the multiplexing interface 22b of the multiplexing segment 22 is inserted into the first insertion portion 11 of the male head 1, and the second insertion portion 221 of the multiplexing segment 22 is inserted into the female-head insertion interface 21b of the female head 21 to realize the fixed connection between the multiplexing segment 22 and the male head 1 and the female head 21. When the rear-end connection component 2 is composed of a plurality of multiplexing segments 22 and one female head 21, the multiplexing interfaces 22b and the second insertion portions 221 of two adjacent multiplexing segments 22 are inserted into each other to realize the installation connection of the plurality of multiplexing segments 22. The plurality of multiplexing segments 22 are connected in series to form a multi-segment structure. The multiplexing interface 22b of the multi-segment structure close to the male head 1 is inserted into the first insertion portion 11, and the second insertion portion 221 of the end of the multi-segment structure close to the female head 21 is inserted into the female-head insertion interface 21b of the female head 21 to realize the fixed connection between the plurality of multiplexing segments 22 and the male head 1 and the female head 21.

[0049] Further, please refer to Figure 2 、 Figure 4 、 Figure 6 and Figure 8 , the first insertion portion 11 and the second insertion portion 221 have the same shape and size; the female-head insertion interface 21b and the multiplexing interface 22b have the same shape and size.

[0050] Specifically, the first plugging part 11 and the second plugging part 221 are frustum structures with the same shape and size. The multi-interface 22b and the female head plugging interface 21b are frustum-shaped groove structures with the same shape and size. The frustum structure and the frustum-shaped groove structure match each other and fit tightly after plugging, improving the flexibility of the assembly and use of the busbar connection component, enabling it to meet different usage scenarios, reducing the mold development and storage costs, and improving the maintenance efficiency. During actual use, an appropriate combination method can be selected according to specific requirements for the installation of the busbar connection component. For example, the male head 1 and the female head 21 can be directly installed on the mandrel 3, or one or more multi-connection segments 22 can be added between the male head 1 and the female head 21 to change the length of the busbar connection component by stacking the multi-connection segments 22.

[0051] Further, please refer to Figures 1 to 9 , and an outer conductive spray coating 4 is provided on the outer circumferential surfaces of the male head 1 and the rear-end connection component 2; an inner conductive spray coating 5 is provided on the inner walls of the first through hole 1a and the second through hole.

[0052] Specifically, an outer conductive spray coating 4 is provided on the circumferential surfaces of the side walls of the part of the male head body 12 close to the first plugging part 11, the outer circumferential surface of the multi-connection body 222 is covered with the outer conductive spray coating 4, and the circumferential surfaces of the side walls of the part of the female head body 211 close to the male head 1 are provided with the outer conductive spray coating 4. The inner walls of the first through hole 1a, the female head through hole 21a, and the multi-connection through hole 22a are covered with the inner conductive spray coating 5. When the busbar connection component adopts a two-section structure, the outer conductive spray coating 4 covered on the outer circumferential surfaces of the male head body 12 and the female head body 211 comes into contact to form a complete outer conductive spray coating 4; the inner conductive spray coating 5 on the inner walls of the first through hole 1a and the female head through hole 21a comes into contact to form a complete inner conductive spray coating 5. When the busbar connection component adopts a multi-section structure, the outer conductive spray coating 4 covered on the outer circumferential surfaces of the male head body 12 and the adjacent multi-connection body 222, multiple adjacent multi-connection bodies 222, the female head body 211 and the adjacent multi-connection body 222 comes into contact to form a complete outer conductive spray coating 4; the inner conductive spray coating 5 covered on the inner walls of the first through hole 1a and the adjacent multi-connection through hole 22a, multiple adjacent multi-connection through holes 22a, the female head through hole 21a and the adjacent multi-connection through hole 22a comes into contact to form a complete inner conductive spray coating 5. The outer conductive spray coating 4 and the inner conductive spray coating 5 have the function of shielding the electric field, reducing the electric field intensity inside and outside the busbar connection component, preventing aging or breakdown caused by electric field concentration, and at the same time being able to evenly distribute the electric field and reducing the partial discharge phenomenon caused by too high electric field intensity.

[0053] Further, please refer to Figure 1 , and the busbar connection component further includes a heat shrinkable tube 6, and the heat shrinkable tube 6 is coated on the outer periphery of the busbar connection component and fits with the outer surfaces of the male head 1 and the rear-end connection component 2.

[0054] Specifically, the heat-shrinkable tube 6 is a conductive heat-shrinkable tube made of a conductive material. The heat-shrinkable tube 6 is wrapped around the periphery of the busbar connection assembly, which can enhance the conductive shielding performance, help to evenly distribute the electric field, reduce electric field concentration and electromagnetic interference.

[0055] The busbar connection assembly product of the present utility model is at least composed of two components combined. For example, the male head 1 and the female head 21 are matched and combined with each other to form a two-section busbar structure. However, when a busbar structure of different lengths is required, several splicing sections 22 can be added between the male head 1 and the female head 21 to form a three-section or more busbar structure, so as to realize the change of the length of the busbar connection assembly. The assembly process of the busbar connection assembly is as follows: First, the male head 1 is installed at the end position of the copper bar 3 near the left side, and it is judged whether to put the splicing section 22 on the right side according to the requirements. If the splicing section 22 is not required, the female head 21 is put into the copper bar 3 from the right side, and the female head 21 slides along the copper bar 3 to the left until it fits tightly with the male head 1. Then, a conductive heat-shrinkable tube 6 is shrunk around the assembled busbar connection assembly to enhance the outer shielding performance of the busbar connection assembly, and the installation is completed at this time. When the splicing section 22 is required, the male head 1 is installed at one end of the copper bar 3, and then one or more splicing sections 22 are put into the copper bar 3 from the right side and connected in series in turn. Then, the female head 21 is put into the right end, so that the male head 1, the splicing section 22 and the female head 21 fit tightly. Finally, a heat-shrinkable tube 6 is shrunk so that it completely fits with the outer surfaces of the male head 1, the splicing section 22 and the female head 21, and the installation is completed.

[0056] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0057] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model without departing from the principle and purpose of the present utility model.

Claims

1. A busbar connection assembly, characterized in that, Comprising: A male head (1) and a rear-end connection component (2), the male head (1) being inserted into the rear-end connection component (2); The male head (1) is axially provided with a first through hole (1a) for passing through a mandrel (3), and one end of the male head (1) close to the rear-end connection component (2) has a first insertion portion (11); The rear-end connection component (2) is axially provided with a second through hole for passing through the mandrel (3), the second through hole communicating with the first through hole (1a), and one end of the rear-end connection component (2) facing the male head (1) is provided with a first insertion opening (2b), the first insertion opening (2b) communicating with the second through hole; The first insertion opening (2b) is adapted to the first insertion portion (11), and the first insertion opening (2b) is inserted into the first insertion portion (11) to achieve the fixed connection between the male head (1) and the rear-end connection component (2).

2. The busbar connection assembly according to claim 1, characterized in that, The first insertion portion (11) is of a frustum structure, and the cross-sectional diameter of one end face of the first insertion portion (11) close to the rear-end connection component (2) is smaller than the cross-sectional diameter of one end face of the first insertion portion (11) far from the rear-end connection component (2).

3. The busbar connection assembly according to claim 1, characterized in that The rear-end connection component (2) includes a female head (21), the female head (21) being axially provided with a female head through hole (21a), and one end of the female head (21) facing the male head (1) is provided with a female head insertion opening (21b), the female head insertion opening (21b) communicating with the female head through hole (21a).

4. The busbar connection assembly according to claim 3, characterized in that, The female head insertion opening (21b) is adapted to the first insertion portion (11), and the female head insertion opening (21b) is inserted into the first insertion portion (11) to achieve the fixed connection between the female head (21) and the male head (1).

5. The bus bar connection assembly according to claim 3, wherein, The rear-end connection component (2) further includes at least one multiplexing section (22), the multiplexing section (22) being provided between the male head (1) and the female head (21).

6. The busbar connection assembly according to claim 5, wherein, The multiplexing section (22) is axially provided with a multiplexing through hole (22a), the multiplexing through hole (22a) communicating with the female head through hole (21a) to jointly form the second through hole; One end of the multiplexing section (22) facing the male head (1) is provided with a multiplexing interface (22b), the multiplexing interface (22b) communicating with the multiplexing through hole (22a); One end of the multiplexing section (22) facing the female head (21) has a second insertion portion (221) adapted to the female head insertion opening (21b).

7. The busbar connection assembly according to claim 6, characterized in that, The first insertion portion (11) and the second insertion portion (221) have the same shape and size; the female head insertion opening (21b) and the multiplexing interface (22b) have the same shape and size.

8. The busbar connection assembly according to claim 1, wherein, The outer circumferential surfaces of the male head (1) and the rear-end connection component (2) are provided with an outer conductive spray coating (4); the inner walls of the first through hole (1a) and the second through hole are provided with an inner conductive spray coating (5).

9. The busbar connection assembly according to any one of claims 1-8, characterized in that, The busbar connection assembly further includes a heat shrinkable tube (6), and the heat shrinkable tube (6) is coated on the outer periphery of the busbar connection assembly and fits with the outer surfaces of the male head (1) and the rear-end connection assembly (2).

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