Busbar connector and connection system

Abstract

The utility model discloses a bus connector and a connection system. The bus connector comprises a connecting device and a wire clamp. The connecting device is provided with a first connecting rod and a first inserting part connected with one end of the first connecting rod. And the first connecting rod and the first inserting part are arranged at an included angle. The first connecting rod is provided with a first connecting cavity in the axial direction, the first inserting part is provided with a first inserting cavity in the axial direction, and the first connecting cavity communicates with the first inserting cavity to form a mounting cavity. And the wire clamp is arranged in the mounting cavity. The wire clamp is provided with a second connecting rod and a second inserting part which are integrally formed. The second connecting rod is arranged in the first connecting cavity, and the second inserting part is arranged in the first inserting cavity. A second inserting cavity is formed in the second inserting part, and the first inserting cavity and the second inserting cavity are coaxial and communicate with each other. According to the bus connector, the wire clamp is connected with the bus and the sleeve, so that the temperature of the bus connector can be prevented from being too high, and the safety performance of a product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage cable accessories, in particular to a busbar connector and a connection system. Background Art

[0002] Traditional top-expanded busbar connectors are often used in conjunction with outer cone sleeves, and are internally connected to conductive hardware via screws or bolts. This connection method can easily cause excessive temperature rise in the product when the power load at the connection is too large, posing a safety hazard. Utility Model Content

[0003] The main purpose of the utility model is to provide a busbar connector and a connection system, aiming to solve the current technical problem of excessively high temperature of the busbar connector.

[0004] To achieve the above objectives, the present invention provides a busbar connector, comprising:

[0005] A connecting device, the connecting device comprising a first connecting rod and a first plug-in portion connected to one end of the first connecting rod, the first connecting rod and the first plug-in portion being arranged at an angle, the first connecting rod being provided with a first connecting cavity along the axial direction, the first plug-in portion being provided with a first plug-in cavity along the axial direction, the first connecting cavity and the first plug-in cavity being connected to form a mounting cavity;

[0006] A wire clamp is arranged in the installation cavity, and the wire clamp has a second connecting rod and a second plug-in portion, the second connecting rod is arranged in the first connecting cavity, the second plug-in portion is arranged in the first plug-in cavity, and a second plug-in cavity is provided on the second plug-in portion, and the first plug-in cavity and the second plug-in cavity are coaxial and connected.

[0007] Optionally, in an embodiment of the present invention, the end of the second connecting rod away from the second plug-in cavity further has a second plug-in end, and the second plug-in end extends out of the first connecting cavity.

[0008] Optionally, in an embodiment of the present invention, the end of the first connecting rod away from the first plug-in portion further has a first plug-in end, and the diameter of the first plug-in end decreases from the end close to the first plug-in portion to the end away from the first plug-in portion.

[0009] Optionally, in an embodiment of the present invention, a groove is formed on the wall of the second plug-in cavity, and an elastic contact finger is provided in the groove.

[0010] Optionally, in an embodiment of the present invention, the busbar connector further includes a stress sleeve, which is provided on the wall of the first plug-in cavity and connected to the second plug-in portion.

[0011] Optionally, in one embodiment of the present invention, a clamping portion is provided on the outer wall of the second plug-in portion near the opening of the second plug-in cavity, and a clamping end is provided at one end of the stress sleeve near the second plug-in portion, and the clamping end is clamped with the clamping portion.

[0012] Optionally, in an embodiment of the present invention, the busbar connector further includes a stress cone, and the stress cone is provided at the opening of the first plug-in cavity.

[0013] Optionally, in one embodiment of the present invention, the busbar connector further includes a clamping device, the clamping device including a pressure plate and a pressure device, the pressure plate is arranged at one end of the first plug-in part away from the first connecting rod, one end of the pressure device is connected to the pressure plate, and the other end of the pressure device is connected to the inner cone sleeve.

[0014] Optionally, in one embodiment of the present utility model, the pressurizing device includes a pull rod, an elastic member, a first fixing member and a second fixing member, one end of the pull rod is connected to the inner conical sleeve through the second fixing member, the other end of the pull rod passes through the pressure plate and is connected to the first fixing member, and an elastic member is provided between the first fixing member and the pressure plate.

[0015] Optionally, in one embodiment of the present invention, a second connecting cavity is provided in the second connecting rod, a partition is provided between the second connecting cavity and the second plug-in cavity, a vent is provided on the partition, and both ends of the vent are respectively connected to the second connecting cavity and the second plug-in cavity.

[0016] The present utility model also proposes a connection system, including an inner cone sleeve, a busbar and a busbar connector as described above, wherein the busbar passes through the first plug-in cavity to be plugged into the second plug-in cavity; the first connecting rod and the first plug-in end are connected to the inner cone sleeve.

[0017] Optionally, in one embodiment of the present invention, the inner cone sleeve includes a sleeve portion and a conductive portion, a via hole is formed in the sleeve portion, and the conductive portion is inserted into one end of the sleeve portion to abut against the wall of the via hole; the conductive portion is provided with a conductive groove, and the conductive groove is connected to the via hole, the second connecting rod is inserted into the conductive groove, and the end of the first connecting rod away from the first plug-in portion abuts against the wall of the via hole.

[0018] The busbar connector of the utility model is connected to the busbar by arranging a wire clamp in the connecting device and arranging a second plug-in cavity on the second plug-in part of the wire clamp, and is connected to the conductive part of the sleeve through the second connecting rod of the wire clamp, abandoning the traditional method of connecting conductive hardware with bolts or screws, improving the conductive safety between the various connecting parts in the busbar connector, ensuring that the temperature between the various connecting parts is always kept within a reasonable range, and greatly improving the safety performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a schematic cross-sectional view of an installation of an embodiment of the connection system of the present utility model;

[0021] Figure 2 This is a schematic cross-sectional view of another embodiment of the connection system of the present invention;

[0022] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the busbar connector of the present utility model;

[0023] Figure 4 for Figure 3 A in the middle is an enlarged schematic diagram;

[0024] Figure 5 This is a structural diagram of an embodiment of the stress sleeve of the present utility model;

[0025] Figure 6 This is a structural diagram of an embodiment of the connection system of the present utility model.

[0026] Description of Figure Numbers:

[0027] 100. Connection system; 10. Connection device; 11. First connecting rod; 111. First connecting cavity; 112. First plugging end; 12. First plugging portion; 122. First plugging cavity; 13. Conductive layer; 20. Wire clamp; 21. Second connecting rod; 211. Second plugging end; 212. Second connecting cavity; 22. Second plugging portion; 221. Second plugging cavity; 222. Groove; 223. Clamping portion; 23. Spacer; 24. Passage Air hole; 30, clamping device; 31, pressure plate; 32, pressurizing device; 321, pull rod; 322, elastic member; 323, first fixing member; 3231, nut; 3232, gasket; 3233, pad; 40, inner cone sleeve; 41, sleeve portion; 411, through hole; 42, conductive portion; 421, conductive groove; 43, fixing member; 51, stress sleeve; 511, clamping end; 52, stress cone; 53, busbar; 60, mounting plate.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in this utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical 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 ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0032] Traditional top-expanded busbar connectors are often used in conjunction with outer cone sleeves, and are internally connected to conductive hardware via screws or bolts. This connection method can easily cause excessive temperature rise in the product when the power load at the connection is too large, posing a safety hazard.

[0033] In view of this, the present invention proposes a busbar connector, which is connected to the busbar 53 by arranging a wire clamp 20 in the connecting device 10, and setting a second plug-in cavity 221 on the second plug-in portion 22 of the wire clamp 20, and connecting to the conductive portion 42 of the sleeve through the second connecting rod 21 of the wire clamp 20, abandoning the traditional method of connecting conductive hardware with bolts or screws, improving the conductive safety between the various connecting components in the busbar connector, ensuring that the temperature between the various connecting components is always maintained within a reasonable range, and greatly improving the safety performance of the product.

[0034] In order to better understand the above technical solution, the above technical solution is described in detail below with reference to the accompanying drawings.

[0035] like Figure 1-6 As shown, the utility model provides a busbar connector, comprising:

[0036] The connecting device 10 includes a first connecting rod 11 and a first plug-in portion 12 connected to one end of the first connecting rod 11. The first connecting rod 11 and the first plug-in portion 12 are arranged at an angle. The first connecting rod 11 is provided with a first connecting cavity 111 along the axial direction. The first plug-in portion 12 is provided with a first plug-in cavity 122 along the axial direction. The first connecting cavity 111 and the first plug-in cavity 122 are connected to form a mounting cavity.

[0037] The wire clamp 20 is arranged in the installation cavity. The wire clamp 20 has an integrally formed second connecting rod 21 and a second plug-in portion 22. The second connecting rod 21 is arranged in the first connecting cavity 111, and the second plug-in portion 22 is arranged in the first plug-in cavity 122. The second plug-in portion 22 is provided with a second plug-in cavity 221. The first plug-in cavity 122 and the second plug-in cavity 221 are coaxial and connected.

[0038] In the technical solution adopted in this embodiment, Figure 1-6As shown, the first connecting rod 11 of the busbar connector is provided with a first connecting cavity 111, and the second connecting rod 21 of the wire clamp 20 is provided within the first connecting cavity 111. When the busbar connector is connected to the sleeve, the first connecting rod 11 and the second connecting rod 21 are inserted into the sleeve together to connect with the sleeve. The first plug-in portion 12 of the busbar connector is provided with a first plug-in cavity 122, which is connected to the first connecting cavity 111. The second plug-in portion 22 of the wire clamp 20 is provided within the first plug-in cavity 122. The second plug-in portion 22 is provided with a second plug-in cavity 221, the axis direction of the second plug-in cavity 221 being coaxial with the axis direction of the first plug-in cavity 122, and the first plug-in cavity 122 and the second plug-in cavity 221 being connected. The busbar 53 can be inserted into the first plug-in cavity 122 to plug into the second plug-in cavity 221 of the wire clamp 20, thereby enabling current transmission from the busbar 53 to the wire clamp 20. Since the second connecting rod 21 is also connected to the bushing, the current is further transmitted from the wire clamp 20 to the bushing. Preferably, the connecting device 10 is tightly wrapped around the outer periphery of the wire clamp 20, with no gap between the two.

[0039] It can be understood that the second connecting rod 21 and the second plug-in portion 22 improve the structural stability and conductive stability of the wire clamp 20, ensuring that the temperature of the wire clamp 20 is always kept within a reasonable range when a large current passes through it.

[0040] Preferably, the busbar connector is a top expansion busbar connector. Preferably, the sleeve is an inner cone sleeve 40.

[0041] Preferably, Figure 1 、 6 As shown, the busbar connector is T-shaped, or as Figure 2-3 As shown in Figure 6, the busbar connector is L-shaped.

[0042] Furthermore, in an embodiment of the present invention, the second connecting rod 21 further has a second plug end 211 at one end away from the second plug cavity 221 , and the second plug end 211 extends out of the first connecting cavity 111 .

[0043] It is understood that when the sleeve connected to the busbar connector is an inner-cone sleeve 40, the inner-cone sleeve 40 includes a sleeve portion 41 and a conductive portion 42. A through-hole 411 is formed in the sleeve portion 41. The conductive portion 42 is inserted into one end of the sleeve portion 41 to abut against the wall of the through-hole 411. The end of the conductive portion 42 facing the through-hole 411 is provided with a conductive slot 421, which is in communication with the through-hole 411. The second plug end 211 is inserted into the conductive slot 421 to be electrically connected to the conductive portion 42. The end of the first connecting rod 11 away from the first plug portion 12 abuts against the wall of the first through-hole 411 to achieve fixed installation of the busbar connector and the inner-cone sleeve 40.

[0044] It can be understood that by extending the second plug-in end 211 out of the first connecting cavity 111, when the first connecting rod 11 and the sleeve portion 41 are connected, the second plug-in end 211 is just inserted into the conductive groove 421, thereby realizing the connection between the busbar connector and the inner cone sleeve 40, and the inner cone sleeve 40 and the busbar connector, especially the top expansion busbar connector, are used.

[0045] Furthermore, in one embodiment of the present invention, the end of the first connecting rod 11 away from the first plug-in portion 12 also has a first plug-in end 112, and the diameter of the first plug-in end 112 decreases from the end close to the first plug-in portion 12 to the end away from the first plug-in portion 12.

[0046] It can be understood that by gradually decreasing the diameter of the first plug end 112 from the end close to the first plug portion 12 to the end away from the first plug portion 12 , the tightness of the installation between the first plug end 112 and the through hole 411 of the sleeve portion 41 is improved.

[0047] Furthermore, in an embodiment of the present invention, a groove 222 is formed on the wall of the second plug-in cavity 221 , and an elastic contact finger (not shown) is provided in the groove 222 .

[0048] By first providing the elastic contact fingers, the connection elasticity between the busbar 53 and the wall of the second plug-in cavity 221 is improved, thereby better ensuring the current flow capacity of the conductor.

[0049] Furthermore, in an embodiment of the present invention, the busbar connector further includes a stress sleeve 51 , which is disposed on the cavity wall of the first plug-in cavity 122 and connected to the second plug-in portion 22 .

[0050] It can be understood that by providing the stress sleeve 51 , the end of the second plug-in portion 22 can be wrapped to balance the electric field.

[0051] Furthermore, in one embodiment of the present invention, a clamping portion 223 is provided on the outer wall of the second plug-in portion 22 near the opening of the second plug-in cavity 221, and a clamping end 511 is provided at one end of the stress sleeve 51 near the second plug-in portion 22, and the clamping end 511 is clamped with the clamping portion 223.

[0052] It can be understood that by clamping the clamping end 511 with the clamping portion 223 , the connection stability between the stress sleeve 51 and the second plug-in portion 22 is ensured, while better wrapping of the end of the second plug-in portion 22 is achieved.

[0053] Furthermore, in an embodiment of the present invention, the busbar connector further includes a stress cone 52 , and the stress cone 52 is provided at the opening of the first plug-in cavity 122 .

[0054] It can be understood that signal shielding can be achieved by providing the stress cone 52 .

[0055] Preferably, the outer wall of the connecting device 10 is further provided with a conductive layer 13. It can be understood that the conductive layer 13 can further shield the signal.

[0056] Furthermore, in one embodiment of the present invention, the busbar connector also includes a clamping device 30, which includes a pressure plate 31 and a pressure device 32. The pressure plate 31 is arranged at one end of the first plug-in portion 12 away from the first connecting rod 11, one end of the pressure device 32 is connected to the pressure plate 31, and the other end of the pressure device 32 is connected to the inner cone sleeve 40.

[0057] It can be understood that the pressing device 30 provides an interference fit between the busbar connector and the inner cone sleeve 40 to prevent a gap from being generated between the busbar connector and the inner cone sleeve 40, thereby preventing breakdown and posing a safety hazard.

[0058] Furthermore, in one embodiment of the present utility model, the pressurizing device 32 includes a pull rod 321, an elastic member 322, a first fixing member 323 and a second fixing member. One end of the pull rod 321 is connected to the inner conical sleeve 40 through the second fixing member, and the other end of the pull rod 321 passes through the pressure plate 31 and is connected to the first fixing member 323. An elastic member 322 is provided between the first fixing member 323 and the pressure plate 31.

[0059] It can be understood that one end of the pull rod 321 is connected to the inner conical sleeve 40 through the second fixing member, and the other end of the pull rod 321 passes through the pressure plate 31 and is connected to the first fixing member 323. An elastic member 322 is provided between the first fixing member 323 and the pressure plate 31. One end of the elastic member 322 abuts against the first fixing member 323, and the other end of the elastic member 322 abuts against the pressure plate 31. Therefore, the bottom end of the elastic member 322 can always press the pressure plate 31, applying a downward pressure to the pressure plate 31. As a result, the pressure plate 31 always exerts a downward pressure on the top of the connecting device 10, thereby ensuring that there is always an interference fit between the first plug-in end 112 and the wall of the through hole 411. Preferably, the elastic member 322 is a spring. The pull rod 321 passes through the middle of the spring so that one end of the spring abuts against the pressure plate 31, and the other end of the spring is connected to the first fixing member 323.

[0060] Furthermore, in an embodiment of the present invention, the pressing device 30 includes a plurality of pressurizing devices 32 , and the plurality of pressurizing devices 32 are respectively disposed through the through holes of the pressing plate 31 .

[0061] It can be understood that by providing a plurality of pressurizing devices 32 , the pressure applied by the pressurizing devices 32 on the pressure plate 31 can be more balanced.

[0062] Preferably, the first fixing member 32 includes a nut 3231, a washer 3232, and a pad 3233. The pad 3233 is provided on the pull rod 321 and abuts against the end of the elastic member 322 away from the pressure plate 31. The pad 3233 is provided with a washer 3232, and the pad 3232 is provided with a nut 3231. The nut 3231 is spirally connected to the pull rod 321. During installation, one end of the pull rod 321 is first fixedly connected to the inner tapered sleeve 40 through the second fixing member, and the other end of the pull rod 321 is passed through the through hole on the pressure plate 31. After that, the pull rod 321 is passed through the middle of the spring, and then the pull rod 321 is passed through the pad 3233 and the pad 3232 in sequence. Then, the nut 3231 is sleeved on the pull rod 321 and the nut 3231 is tightened to compress the spring. By adjusting the position of the nut 3231 , the pressure applied by the pressurizing device 32 on the connecting device 10 can be changed, thereby adjusting the interference between the first connecting rod 11 and the inner tapered sleeve 40 .

[0063] Preferably, two adjacent tie rods 321 can share a backing plate 3233. It is understood that two through holes can be spaced apart on a backing plate 3233. One end of each tie rod 321 is connected to the inner tapered sleeve 40. The other ends of each tie rod 321 pass through corresponding through holes in the pressure plate 31, and then pass through a spring. The two tie rods 321 then pass through two through holes in the same backing plate 3233. The two tie rods are then connected to the gasket 3232 and nut 3231, respectively. It is understood that by having two tie rods 321 share a backing plate 3233, the pressure applied to the pressure plate 31 can be more evenly distributed.

[0064] Furthermore, in one embodiment of the present invention, the second connecting rod 21 and the second plug-in portion 22 are integrally formed, a second connecting cavity 212 is provided in the second connecting rod 21, a partition portion 23 is provided between the second connecting cavity 212 and the second plug-in cavity 221, and a vent hole 24 is provided on the partition portion 23, and both ends of the vent hole 24 are respectively connected to the second connecting cavity 212 and the second plug-in cavity 221.

[0065] It can be understood that by arranging a vent hole 24 on the partition portion 23 between the second connecting cavity 212 and the second plug-in cavity 221, the two ends of the vent hole 24 are respectively connected to the second connecting cavity 212 and the second plug-in cavity 221, so that when the second plug-in cavity 221 and the busbar 53 are plugged in, the compressed gas in the second plug-in cavity 221 enters the second connecting cavity 212 through the vent hole 24, and is then discharged through the gap between the second connecting rod 21 and the inner cone sleeve 40, thereby facilitating the installation of the busbar 53.

[0066] The present invention also provides a connection system 100, comprising an inner tapered sleeve 40, a busbar 53, and the aforementioned busbar connector. The busbar 53 passes through the first insertion cavity 122 to connect with the second insertion cavity 221; the first connecting rod 11 and the first insertion end 112 are connected to the inner tapered sleeve 40. The specific structure of the busbar connector of this application refers to the aforementioned embodiments. Since this busbar connector utilizes all the technical solutions of all the aforementioned embodiments, it at least possesses all the beneficial effects brought about by the technical solutions of the aforementioned embodiments, which will not be detailed here.

[0067] Furthermore, in one embodiment of the present invention, the inner cone sleeve 40 includes a sleeve portion 41 and a conductive portion 42, a through hole 411 is formed in the sleeve portion 41, and the conductive portion 42 is inserted into one end of the sleeve portion 41 to abut against the wall of the through hole 411; a conductive groove 421 is provided on the side of the conductive portion 42 facing the through hole 411, and the conductive groove 421 is connected to the through hole 411, the second connecting rod 21 is inserted into the conductive groove 421, and the end of the first connecting rod 11 away from the first plug-in portion 12 abuts against the wall of the through hole 411.

[0068] It can be understood that the fixed connection between the busbar connector and the inner cone sleeve 40 is achieved by bringing one end of the first connecting rod 11 away from the first plug-in portion 12 into contact with the wall of the first through hole 411, and the conductive connection between the busbar connector and the inner cone sleeve 40 is achieved by inserting the second connecting rod 21 into the conductive groove 421.

[0069] Preferably, the inner cone sleeve 40 further includes a fixing plate 43. During installation, after the sleeve portion 41 and the conductive portion 42 are installed, they are placed on one side of the mounting plate 60. A fixing piece is placed on the other side of the mounting plate 60, and the fixing plate 43 and the sleeve portion 41 are fixedly connected by fasteners to achieve installation of the inner cone sleeve 40. The first connecting rod 11 is inserted into the through hole 411 so that the first plug end 112 abuts against the wall of the through hole 411 of the sleeve portion 41, and the first plug end 112 is inserted into the conductive groove 421 of the conductive portion 42. Insert the busbar 53 into the first plug-in cavity 122, and insert one end of the busbar 53 into the second plug-in cavity 221 to achieve the installation of the busbar 53. Then press the pressure plate 31 on the top of the connecting device 10, and connect one end of the pull rod 321 through the second fixing device and the inner cone sleeve 40. The other end of the pull rod 321 passes through the through hole on the pad 3233, the spring, the through hole on the pad 3233, and the gasket in sequence, and then screws into the nut 3231 to achieve the installation of the clamping device 30.

[0070] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

[0071] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A busbar connector, characterized in that: include, A connecting device (10), the connecting device (10) comprising a first connecting rod (11) and a first plug-in portion (12) connected to one end of the first connecting rod (11), the first connecting rod (11) and the first plug-in portion (12) being arranged at an angle, the first connecting rod (11) being provided with a first connecting cavity (111) along the axial direction, the first plug-in portion (12) being provided with a first plug-in cavity (122) along the axial direction, the first connecting cavity (111) and the first plug-in cavity (122) being connected to form a mounting cavity; A wire clamp (20), wherein the wire clamp (20) is arranged in the installation cavity, and the wire clamp (20) has an integrally formed second connecting rod (21) and a second plug-in portion (22), wherein the second connecting rod (21) is arranged in the first connecting cavity (111), and the second plug-in portion (22) is arranged in the first plug-in cavity (122), and a second plug-in cavity (221) is provided on the second plug-in portion (22), and the first plug-in cavity (122) and the second plug-in cavity (221) are coaxial and connected.

2. A busbar connector according to claim 1, characterized in that: One end of the second connecting rod (21) away from the second plug-in cavity (221) further comprises a second plug-in end (211), and the second plug-in end (211) extends out of the first connecting cavity (111).

3. A busbar connector according to claim 2, characterized in that: The first connecting rod (11) further comprises a first plug end (112) at one end away from the first plug portion (12), wherein the diameter of the first plug end (112) decreases from the end close to the first plug portion (12) to the end away from the first plug portion (12).

4. A busbar connector according to claim 1, characterized in that: A groove (222) is provided on the wall of the second plug-in cavity (221), and an elastic contact finger is provided in the groove (222).

5. A busbar (53) connector according to claim 1, characterized in that: The busbar (53) connector further comprises a stress sleeve (51), wherein the stress sleeve (51) is provided on the cavity wall of the first plug-in cavity (122) and is connected to the second plug-in portion (22).

6. A busbar connector according to claim 5, characterized in that: A clamping portion (223) is provided on the outer wall of the second plug-in portion (22) near the opening of the second plug-in cavity (221), and a clamping end (511) is provided on one end of the stress sleeve (51) near the second plug-in portion (22), and the clamping end (511) is clamped with the clamping portion (223).

7. A busbar connector according to claim 1, characterized in that: The busbar connector further includes a stress cone (52), and the stress cone (52) is arranged at the cavity opening of the first plug-in cavity (122).

8. A busbar connector according to claim 1, characterized in that: The busbar (53) connector also includes a clamping device (30), and the clamping device (30) includes a pressure plate (31) and a pressure device (32). The pressure plate (31) is arranged at one end of the first plug-in portion (12) away from the first connecting rod (11), one end of the pressure device (32) is connected to the pressure plate (31), and the other end of the pressure device (32) is connected to the inner cone sleeve (40).

9. A busbar connector according to claim 8, characterized in that: The pressurizing device (32) includes a pull rod (321), an elastic member (322), a first fixing member (323) and a second fixing member. One end of the pull rod (321) is connected to the inner cone sleeve (40) through the second fixing member. The other end of the pull rod (321) passes through the pressure plate (31) and is connected to the first fixing member (323). An elastic member (322) is provided between the first fixing member (323) and the pressure plate (31).

10. The busbar connector according to claim 1, wherein: A second connecting cavity (212) is provided in the second connecting rod (21), a partition (23) is provided between the second connecting cavity (212) and the second plug-in cavity (221), a vent hole (24) is provided on the partition (23), and two ends of the vent hole (24) are respectively connected to the second connecting cavity (212) and the second plug-in cavity (221).

11. A connection system (100), characterized in that It comprises an inner cone sleeve (40), a busbar (53) and a busbar connector as described in any one of claims 1 to 10, wherein the busbar (53) passes through the first plug-in cavity (122) to be plugged into the second plug-in cavity (221); the first connecting rod (11) and the first plug-in end (112) are connected to the inner cone sleeve (40).

12. A connection system (100) according to claim 11, characterized in that: The inner cone sleeve (40) includes a sleeve portion (41) and a conductive portion (42), wherein a through hole (411) is formed in the sleeve portion (41), and the conductive portion (42) is plugged into one end of the sleeve portion (41) to abut against the wall of the through hole (411); the conductive portion (42) is provided with a conductive groove (421), and the conductive groove (421) is connected to the through hole (411), and the second connecting rod (21) is inserted into the conductive groove (421), and the end of the first connecting rod (11) away from the first plug-in portion (12) abuts against the wall of the through hole (411).

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