Lateral plug-in busbar assembly

Abstract

The utility model relates to the technical field of busbar connection, and discloses a laterally-inserted busbar assembly, which comprises a first busbar, a second busbar and an electric connection structure, the electric connection structure comprises a first insulating sheath, a second insulating sheath and a side plug-in structure, wherein the first insulating sheath is fixedly coated outside the plug-in end of the first busbar and is provided with a first plug-in port; the second insulating sheath is fixedly coated outside the plug-in end of the second busbar and is provided with a second plug-in port; the side plug-in structure comprises a convex tongue which is integrally arranged on the first busbar and a receiving groove which is concavely arranged on the second busbar and is used for the convex tongue to be laterally inserted, and the second insulating sheath is provided with a second avoiding groove which is used for the convex tongue to be laterally inserted. The first insulating sheath is provided with a first avoiding groove which is used for laterally inserting the second insulating sheath and limiting the second insulating sheath to be separated along the length direction of the first busbar, and a locking structure which is used for limiting the first insulating sheath and the second insulating sheath to be separated along the direction opposite to the inserting direction is arranged between the first insulating sheath and the second insulating sheath. And high-voltage connection is realized through lateral insertion.

Description

Technical Field

[0001] This utility model relates to the field of busbar connection technology, and in particular to a side-to-side busbar assembly. Background Technology

[0002] High-voltage connectors are connection devices used in tram systems to connect high-voltage power sources and transmit high-voltage electrical energy.

[0003] Chinese Patent Application No. 202410865989.6 discloses a high-voltage connector and a plug for the high-voltage connector. The high-voltage connector includes a plug and a socket. The plug includes a plug housing with two first mounting cavities spaced apart. The first mounting cavities accommodate a first insulating sheath. The first insulating sheath has plug terminals inside, and the plug terminals include a first plug-in terminal and a first wiring terminal that are connected to each other. The socket includes a socket housing that surrounds a second insulating sheath. The second insulating sheath has socket terminals inside, and the socket terminals include a second plug-in terminal and a second wiring terminal that are connected to each other.

[0004] In the above scheme, the first and second terminals are used to fix and electrically connect with the conductor core of the busbar or cable through crimping or splicing. The first and second plug terminals are inserted along their own axial direction to achieve electrical connection of the high-voltage connector. However, the setting of plug terminals and socket terminals will make the high-voltage connector occupy more space, increase cost, increase resistance, increase energy consumption, increase heat, and reduce transmission efficiency and rated current carrying capacity. At the same time, the plug terminals and socket terminals are connected to the busbar respectively, and the circuit can only be connected by plugging the plug terminals and socket terminals. The large number of wiring segments increases the risk of the entire circuit being disconnected.

[0005] In addition, the installation space inside the vehicle is limited, but with the increasing demands of users, the number of components that need to be installed is gradually increasing, so the various components need to be arranged closely together. However, in order to ensure that the high-voltage connector can be plugged in and out, sufficient installation space and plugging and unplugging travel need to be reserved for the high-voltage connector. However, the high-voltage connector is often located between the battery and the electrical components on opposite sides, which will result in an excessive gap between the battery and the electrical components, resulting in wasted space. Utility Model Content

[0006] This invention addresses the shortcomings of existing high-voltage connectors, which have terminals and require insertion and removal along the terminal axis, resulting in large space occupation, high cost, high resistance, high energy consumption, high heat generation, low transmission efficiency, and low rated current carrying capacity. It provides a side-plug busbar assembly that can achieve high-voltage connection without the need for terminals.

[0007] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0008] A side-plugging busbar assembly includes a first busbar, a second busbar, and an electrical connection structure. The electrical connection structure includes a first insulating sleeve fixedly covering the plug-in end of the first busbar with a first insertion port located on the side wall of the first busbar; a second insulating sleeve fixedly covering the plug-in end of the second busbar with a second insertion port located on the side wall of the second busbar; and a side-plugging structure disposed between the first busbar and the second busbar. The side-plugging structure includes a protrusion integrally disposed on the plug-in end of the first busbar within the first insulating sleeve and a receiving groove recessed on the plug-in end of the second busbar for lateral insertion of the protrusion. A second clearance groove connected to the second insertion port and used for lateral insertion of the protrusion is provided on the second insulating sleeve. A first clearance groove connected to the first insertion port and used for lateral insertion of the second insulating sleeve while restricting its disengagement along the length direction of the first busbar is provided on the first insulating sleeve. A locking structure is provided between the first insulating sleeve and the second insulating sleeve to restrict their disengagement in the opposite direction of the plugging direction.

[0009] Using the above scheme, the first busbar and the second busbar are laterally inserted. A protruding tongue is inserted into the receiving slot through the second insertion port. The second clearance groove ensures smooth lateral insertion of the protruding tongue. After insertion, the protruding tongue fits against the inner wall of the receiving slot to achieve electrical connection. Simultaneously, the second insulating sleeve is inserted into the first insulating sleeve through the first insertion port. The first clearance groove ensures smooth lateral insertion of the second insulating sleeve, and after lateral insertion, the first clearance groove restricts the second insulating sleeve from disengaging along the length of the first busbar. When the second insulating sleeve is inserted into the first insulating sleeve to a preset position, a locking structure restricts the second insulating sleeve from disengaging from the first insulating sleeve in the opposite direction of its insertion.

[0010] The tongue is formed by reducing material from the first busbar insertion terminal, and the receiving slot is formed by reducing material from the second busbar. After the tongue is inserted into the receiving slot, it contacts the inner wall of the receiving slot. This eliminates the need to connect terminals separately to the first and second busbars, thus achieving a high-voltage electrical connection between them. This results in reduced space, lower cost, lower resistance, lower energy consumption, lower heat generation, increased transmission efficiency and rated current carrying capacity, and fewer wiring sections, reducing the risk of circuit breakage. Furthermore, the tongue's lateral insertion into the receiving slot eliminates the need for pre-reserved installation and insertion / removal distances between the battery and electrical components, allowing for closer arrangement and space saving.

[0011] Preferably, a locking structure includes an elastic blocking member that is spring-loaded at the first insertion port, deforms to avoid the insertion of the second insulating sleeve until the second insulating sleeve is inserted to a preset position, and then resets and restricts its reverse movement and disengagement.

[0012] Using the above scheme, during the process of the second insulating sleeve being inserted into the first insulating sleeve through the first insertion port and along the first clearance groove, the second insulating sleeve first engages with the elastic blocking member through compression and sliding, causing the elastic blocking member to deform elastically to avoid the second insulating sleeve, until the second insulating sleeve is inserted into the preset position, the compression force from the second insulating sleeve on the elastic blocking member disappears, the elastic blocking member resets, and the second insulating sleeve is restricted from moving in the opposite direction to detach.

[0013] Preferably, the elastic blocking member includes a third elastic plate, which has a groove recessed at the first insertion port along the insertion direction of the second insulating sheath. One end of the third elastic plate is integrally fixed to the bottom of the groove, and the other end is suspended and raised to form a third limiting block.

[0014] Using the above scheme, the third elastic plate provides the elastic deformation and reset capability of the elastic blocking component. During the process of the second insulating sleeve being laterally inserted into the first insulating sleeve, the second insulating sleeve first engages with the third limiting block through a squeezing and sliding action, driving the third elastic plate to elastically deform until the second insulating sleeve is inserted into the preset position. The third elastic plate then resets, causing the third limiting block to abut against the side wall of the second insulating sleeve away from the second insertion port.

[0015] Preferably, the first insulating sheath is provided with a double locking structure for the third limiting block to spring or release the limiting. The double locking structure includes a first pin inserted into the first insulating sheath and reciprocating along the length of the first busbar. The first pin is inserted into or disengaged from the third limiting block as it moves.

[0016] Using the above scheme, when the first pin is simultaneously engaged with both the first insulating sleeve and the third limiting block, it restricts the third limiting block from accidentally bouncing relative to the first insulating sleeve, achieving double locking and further increasing the stability of the third limiting block in limiting the second insulating sleeve. Unlocking simply requires moving the first pin away from the third limiting block.

[0017] Preferably, a three-locking structure is provided between the first pin and the first insulating sleeve to restrict the first pin from retracting in the reverse direction when the first pin is inserted into the third limiting block. The three-locking structure includes a push block fixedly disposed on the end of the first pin away from the third limiting block, a through groove disposed on the push block along the insertion direction of the second insulating sleeve, and a plug that is spring-loaded on the side wall of the first insulating sleeve and can be inserted into or detached from the through groove.

[0018] Using the above scheme, when the insert block is inserted into the through slot, the push block and the first pin are prevented from accidentally retracting, ensuring that the first pin is always inserted into the first insulating sleeve and the third limiting block, thus achieving triple locking. To unlock, the insert block is driven to elastically retract until it disengages from the through slot, releasing the limiting effect on the push block, while simultaneously moving the push block in the opposite direction.

[0019] Preferably, a fourth limiting block is provided on the side wall of the second insulating sleeve away from the second insertion port, and a second pin is provided on the first insulating sleeve along the length direction of the first busbar, which can be inserted into or detached from the fourth limiting block.

[0020] Using the above scheme, when the second pin is simultaneously engaged with both the first insulating sleeve and the fourth limiting block, the movement of the second insulating sleeve relative to the first insulating sleeve is restricted, further increasing the stability of the engagement between the first and second insulating sleeves. To unlock, simply pull the second pin in the opposite direction to disengage it from the fourth limiting block.

[0021] Preferably, a contact spring is fixedly provided on the upper end face and / or lower end face of the tongue, which elastically abuts against the inner wall of the receiving groove when the tongue is inserted into the receiving groove, and a third insulating layer is fixed on the side wall of the tongue where the contact spring is not provided.

[0022] With the above solution, the contact surfaces of the tongue and the receiving slot are rigidly connected. During long-term use, factors such as vibration and wear may lead to poor contact. Therefore, a contact spring is provided, which is fixedly mounted on the tongue and elastically abuts against the inner wall of the receiving slot, reducing the possibility of poor contact. Simultaneously, because the first insertion port and the first clearance slot are relatively large, there is a risk that fingers could touch the sidewall of the tongue. Therefore, a third insulating layer is provided to prevent fingers from touching dangerous areas, increasing safety during use.

[0023] Preferably, the first busbar and the first insulating sheath are connected by a first fixing structure. The first fixing structure includes a first limiting groove recessed on the side wall of the first busbar and a first limiting block that can be inserted into or detached from the first limiting groove and is elastically disposed on the first insulating sheath along the depth direction of the first limiting groove. When the first limiting groove and the first limiting block are inserted and limited, a first insulating layer is covered on the outside of the first busbar to restrict the first limiting block from detaching from the first limiting groove.

[0024] Using the above scheme, during the process of connecting the first insulating sleeve and the first busbar, the first busbar first engages with the first limiting block through a squeezing and sliding mechanism, causing it to bounce away from the first limiting groove. This ensures smooth connection between the first insulating sleeve and the first busbar until the first limiting block aligns with the first limiting groove. The squeezing force from the first busbar on the first limiting block then disappears, and the first limiting block resets and inserts into the first limiting groove, preventing the first insulating sleeve from disengaging from the first busbar in the opposite direction of the insertion direction. Afterward, a first insulating layer is wrapped around the outside of the first busbar, covering the first limiting block and preventing it from disengaging from the first limiting groove, thus increasing the stability of the connection between the first insulating sleeve and the first busbar.

[0025] Preferably, an installation strip is fixedly provided on the outer wall of the second insulating sheath, and a third clearance groove is recessed in the first insertion port along the insertion direction of the second insulating sheath for the installation strip to slide. A high-voltage interlock structure for detecting whether the assembly is qualified is provided between the installation strip and the third clearance groove.

[0026] Preferably, the high-voltage interlocking structure includes two conductive contact rods disposed at the bottom of the third clearance groove, a conductive contact plate fixedly disposed on the side wall of the mounting strip near the conductive contact rods, and a signal device electrically connected to the ends of the two conductive contact rods away from the conductive contact plate. The signal device is used to detect whether the conductive contact plate and the two conductive contact rods are in contact when the first insulating sleeve and the second insulating sleeve are inserted and limited. If they are in contact, the assembly is qualified; otherwise, the assembly is unqualified.

[0027] Using the above scheme, high-voltage interlocking is a safety function that primarily checks the integrity and continuity of the entire high-voltage system circuit through low-voltage signals, promptly identifying abnormal circuit disconnections and thus disconnecting the high voltage in a timely manner. Simply put, it checks the continuity of the high-voltage circuit through the on / off signal of the low-voltage circuit. When the second insulating sleeve is inserted laterally into the first insulating sleeve, the mounting strip slides into the third clearance groove until the second insulating sleeve is inserted to the preset position. Only then will the two conductive contact rods in the third clearance groove and the conductive contact plate on the mounting strip make contact, forming a low-voltage circuit between the signal device, the two conductive contact rods, and the conductive contact plate. Conversely, if the two conductive contact rods and the conductive contact plate do not make contact, it indicates improper assembly or abnormal disconnection of the busbar assembly.

[0028] This utility model, by adopting the above technical solution, has significant technical effects: the protruding tongue is formed by reducing material at the first busbar insertion end, and the receiving slot is formed by reducing material at the second busbar insertion end. Electrical connection is achieved after the protruding tongue and receiving slot are inserted, eliminating the need to connect terminals separately on the first and second busbars. This results in reduced space, lower cost, lower resistance, lower energy consumption, lower heat generation, increased transmission efficiency and rated current carrying capacity, and fewer wiring sections, reducing the risk of circuit disconnection. Furthermore, the protruding tongue is inserted laterally into the receiving slot, eliminating the need for pre-reserved installation and insertion / removal distances between the battery and electrical components, allowing for closer arrangement and space saving. The first insulating sleeve, second insulating sleeve, and a locking structure prevent the busbar assembly from detaching, while the second and third locking structures further increase connection stability. Attached Figure Description

[0029] Figure 1 This is an isometric view of a laterally interlocking busbar assembly assembled in one embodiment. Figure 1 ;

[0030] Figure 2 yes Figure 1 Enlarged view of point A in the image;

[0031] Figure 3 This is an isometric view of a laterally interlocking busbar assembly assembled in one embodiment. Figure 2 ;

[0032] Figure 4 yes Figure 3 Enlarged view of point B in the image;

[0033] Figure 5 yes Figure 4 Enlarged view of point C in the image;

[0034] Figure 6 This is an isometric view of a laterally interlocking busbar assembly in one embodiment, where the first and second busbars are not interlocked. Figure 1 ;

[0035] Figure 7 yes Figure 6 Enlarged view of point D in the image;

[0036] Figure 8 yes Figure 6 Enlarged view of point E in the image;

[0037] Figure 9 This is an isometric view of a laterally interlocking busbar assembly in one embodiment, where the first and second busbars are not interlocked. Figure 2 ;

[0038] Figure 10 yes Figure 9 Enlarged view of point F in the image;

[0039] Figure 11 This is a breakdown of a side-interlocking busbar assembly in one embodiment. Figure 1 ;

[0040] Figure 12 yes Figure 11 Enlarged view of point G in the image;

[0041] Figure 13 yes Figure 11 Enlarged view of point H in the image;

[0042] Figure 14 yes Figure 11 Enlarged view of point I in the image;

[0043] Figure 15 This is a breakdown of a side-interlocking busbar assembly in one embodiment. Figure 2 ;

[0044] Figure 16 yes Figure 15 Enlarged view of point J in the image;

[0045] Figure 17 This is a schematic diagram of the high-voltage interlocking structure in a side-interlocking busbar assembly according to an embodiment.

[0046] The parts referred to by the numbers in the above attached diagrams are as follows: 1. First busbar; 2. Lug; 3. Second busbar; 4. Receiving slot; 5. First insulating sleeve; 6. First insertion port; 7. First limiting slot; 8. First spring plate; 9. First limiting block; 10. First guide slope; 11. First insulating layer; 12. Third insulating layer; 13. Second insulating sleeve; 14. Second insertion port; 15. Second limiting slot; 16. Second spring plate; 17. Second limiting block; 18. Second guide slope; 19. Second insulating layer; 20. Third spring plate; 21. Third limiting block; 22. Third through slot; 23. Third guide 24. Inclined surface; 25. First through slot; 26. First pin; 27. Push block; 28. Spring rod; 29. ​​First clearance groove; 30. Insert block; 31. Through slot; 32. Fourth limit block; 34. Fourth through slot; 35. Second through slot; 36. Second pin; 37. Fixing plate; 38. Anti-detachment block; 39. Hook; 40. Slot; 41. Third clearance groove; 42. Conductive contact rod; 43. Wire; 44. Conductive contact plate; 45. First clearance groove; 46. Second clearance groove; 47. Second clearance groove; 48. Low-voltage connector; 49. Signal device; 50. Contact spring; 51. Cut groove. Detailed Implementation

[0047] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0048] Example

[0049] A side-interlocking busbar assembly, referenced Figures 1 to 17 It includes a first busbar 1 and a second busbar 3. The plug end of the first busbar 1 is fixedly covered with a first insulating sleeve 5, and the plug end of the second busbar 3 is fixedly covered with a second insulating sleeve 13.

[0050] A protruding tongue 2 is formed by reducing material at the plug-in end of the first busbar 1 inside the first insulating sleeve 5. The protruding tongue 2 is integrally set with the first busbar 1. Contact springs 50 are fixedly set on the upper and lower end surfaces of the protruding tongue 2, respectively. A receiving groove 4 is recessed at the plug-in end of the second busbar 3 inside the second insulating sleeve 13 for the protruding tongue 2 and the contact springs 50 to be inserted laterally. The surface of the contact springs 50 that elastically abuts against the inner wall of the receiving groove 4 is plated with a silver layer to reduce resistance.

[0051] To ensure that the tongue 2 and the receiving slot 4 can be inserted laterally, the side wall of the second insulating sleeve 13 is provided with a second insertion port 14 for the tongue 2 and the contact spring 50 to be inserted laterally. The second insulating sleeve 13 is also provided with a second clearance groove 46 connected to the second insertion port 14 for the tongue 2 to be inserted laterally. Similarly, the side wall of the first insulating sleeve 5 is provided with a first insertion port 6 for the second insulating sleeve 13 to be inserted laterally. The first insulating sleeve 5 is also provided with a first clearance groove 45 connected to the first insertion port 6 for the second insulating sleeve 13 to be inserted laterally while restricting its disengagement along the length direction of the first busbar 1. A third insulating layer 12 is fixed on the side wall of the tongue 2 where the contact spring 50 is not provided. The connection surface between the tongue 2 and the third insulating layer 12 is stepped, making the connection between the two more secure.

[0052] A cutting groove 51 is recessed at the first insertion port 6 along the insertion direction of the second insulating sheath 13. A third elastic plate 20 is provided in the cutting groove 51. One end of the third elastic plate 20 is integrally fixed to the bottom of the cutting groove 51, and the other end is suspended and raised to form a third limiting block 21. The third elastic plate 20 can elastically deform to approach or move away from the protrusion 2. The third limiting block 21 is provided with a third guide slope 23. When the second insulating sleeve 13 is inserted into the first insulating sleeve 5 through the first insertion port 6 and along the first clearance groove 45, the second insulating sleeve 13 first abuts against the third guide slope 23. Since the third elastic plate 20 can elastically deform away from the protrusion 2, the second insulating sleeve 13 can cooperate with the third guide slope 23 to squeeze and slide, driving the third limiting block 21 away from the protrusion 2 to avoid the second insulating sleeve 13, until the second insulating sleeve 13 is inserted into the preset position. The squeezing force from the second insulating sleeve 13 on the third limiting block 21 and the third elastic plate 20 disappears, the third elastic plate 20 resets, and drives the third limiting block 21 to move closer to the protrusion 2 to reset. At this time, the side wall of the third limiting block 21 away from the third guide slope 23 abuts against the side wall of the second insulating sleeve 13 away from the second insertion port 14, restricting the second insulating sleeve 13 from moving in the opposite direction.

[0053] A first pin 25 is provided on the first insulating sleeve 5 and moves back and forth along the length of the first busbar 1. A first through groove 24 is provided on the first insulating sleeve 5 for the first pin 25 to pass through and move. As the first pin 25 moves, it is inserted into the third limiting block 21 to restrict the third limiting block 21 from bouncing relative to the first insulating sleeve 5, or it is disengaged from the third limiting block 21 to release the restriction. A third through groove 22 is provided on the third limiting block 21 to be inserted into the first pin 25.

[0054] A spring rod 27 is provided on the side wall of the first insulating sleeve 5. One end of the spring rod 27 is fixed to the side wall of the first insulating sleeve 5, and the other end is suspended. A push block 26 is fixed on the end of the first pin 25 away from the third limiting block 21. The push block 26 is provided with a first clearance groove 28 that does not interfere with the spring rod 27 when the push block 26 moves along the length direction of the first busbar 1. That is, when the push block 26 moves along the length direction of the first busbar 1, the spring rod 27 moves within the first clearance groove 28 and relative to the first clearance groove 28. A through groove 30 is provided on the side of the first clearance groove 28 away from the first insulating sleeve 5 along the insertion direction of the second insulating sleeve 13. An insert block 29 is provided on the suspended end of the spring rod 27. When the insert block 29 is inserted into the through groove 30, it restricts the first pin 25 from accidentally retracting, ensuring that the first pin 25 is always inserted into the first insulating sleeve 5 and the third limiting block 21. When unlocking, the insert 29 is driven to retract elastically until it disengages from the through slot 30, thereby releasing the limit on the push block 26. At the same time, the push block 26 is moved in the opposite direction.

[0055] The first insulating sleeve 5 has a fixing plate 36 protruding outward from the side wall of the spring rod 27. An anti-detachment block 37 is detachably engaged on the side of the push block 26 away from the first pin 25. When the anti-detachment block 37 is not installed on the push block 26 and the push block 26 retracts to abut against the fixing plate 36, the first pin 25 disengages from the first insulating sleeve 5, facilitating the assembly or disassembly of the push block 26 and the first pin 25 onto the first insulating sleeve 5. When the anti-detachment block 37 is installed on the push block 26 and the push block 26 retracts to abut against the fixing plate 36, the first pin 25 remains engaged with the first insulating sleeve 5, preventing accidental disengagement of the push block 26 and the first pin 25 from the first insulating sleeve 5. The anti-detachment block 37 is provided with a second clearance groove 47 that does not interfere with the spring rod 27 when it moves along the length of the first busbar 1. The anti-detachment block 37 has a protruding hook 38, and the push block 26 has a slot 39 for the hook 38 to be engaged. The hook 38, the slot 39, and the engagement method of both are existing technologies and will not be described in detail here.

[0056] A fourth limiting block 31 protrudes from the side wall of the second insulating sleeve 13 away from the second insertion port 14. A second pin 35 reciprocates on the first insulating sleeve 5 along the length of the first busbar 1. The first insulating sleeve 5 is provided with a second through groove 34 for the second pin 35 to pass through and move. As the second pin 35 moves, it engages with the fourth limiting block 31 to restrict the movement of the second insulating sleeve 13 relative to the first insulating sleeve 5, or it disengages from the fourth limiting block 31 to release the restriction. The fourth limiting block 31 is provided with a fourth through groove 32 for the second pin 35 to engage with. In this embodiment, the first pin 25 and the second pin 35 are two parallel segments of a U-shaped pin, and the arc segment of the U-shaped pin is integrally injection molded with the push block 26.

[0057] An installation strip 40 is fixedly installed on the outer wall of the second insulating sleeve 13. The first insertion port 6 is recessed along the insertion direction of the second insulating sleeve 13 and a third clearance groove 41 is provided for the installation strip 40 to slide. A high-voltage interlock structure for detecting whether the assembly is qualified is provided between the installation strip 40 and the third clearance groove 41. The high-voltage interlocking structure includes two conductive contact rods 42 disposed at the bottom of the third clearance groove 41 and a conductive contact plate 44 fixedly disposed on the side wall of the mounting strip 40 near the conductive contact rods 42. The ends of the two conductive contact rods 42 away from the conductive contact plate 44 both protrude through the first insulating sleeve 5 and are connected to the wires 43 respectively through low-voltage connectors 48. The side of the two wires 43 away from the conductive contact rods 42 is electrically connected to a signal device 49. The signal device 49 is used to detect whether the conductive contact plate 44 is in contact with the two conductive contact rods 42 when the first insulating sleeve 5 is inserted into and limited by the second insulating sleeve 13. If they are in contact, the assembly is qualified and a low-voltage circuit is formed between the signal device 49, the two wires 43, the two low-voltage connectors 48, the two conductive contact rods 42 and the conductive contact plate 44; otherwise, the assembly is unqualified. Signal device 49 sends a signal. If the low-voltage circuit is connected, signal device 49 receives the signal, and the busbar assembly is assembled in place. If the low-voltage circuit is not connected, signal device 49 does not receive the signal, the busbar assembly is not assembled properly, or it is abnormally disconnected. Signal device 49 and its signal generation and reception detection methods are all existing technologies. Figures 1 to 16 The structural diagram is not shown, and will not be described in detail here. The ends of the two conductive contact rods 42 near the conductive contact plate 44 are bent with a hook, which has a certain elastic deformation capability and increases the stability of the connection between the two conductive contact rods 42 and the conductive contact plate 44.

[0058] A first limiting groove 7 is recessed on the side wall of the first busbar 1. A first elastic plate 8 extends along the length of the first busbar 1 on the first insulating sleeve 5, with one end of the first elastic plate 8 integrally fixed to the first insulating sleeve 5 and the other end suspended. The first elastic plate 8 elastically deforms along the depth direction of the first limiting groove 7. A first limiting block 9, which can be inserted into or detached from the first limiting groove 7, is provided on the suspended end of the first elastic plate 8. A first guide slope 10 is provided on the first limiting block 9. When the first busbar 1 and the first insulating sleeve 5 are sleeved, the first busbar 1 first abuts against the first guide slope 10. Since the first elastic plate 8 can elastically deform away from the first limiting groove 7, the first busbar 1 can squeeze and slide with the first guide slope 10 to drive the first limiting block 9 away from the first limiting groove 7 to avoid the first busbar 1. Until the first limiting block 9 and the first limiting groove 7 are aligned, the squeezing force from the first busbar 1 on the first limiting block 9 and the first elastic plate 8 disappears, the first elastic plate 8 resets, and drives the first limiting block 9 to move closer to the first limiting groove 7 to reset, so as to realize the insertion of the first limiting block 9 and the first limiting groove 7.

[0059] At least one set of first limiting groove 7, first elastic plate 8, and first limiting block 9 are arranged circumferentially around the first busbar 1. When the first limiting groove 7 and the first limiting block 9 are inserted and limited, the portion of the first busbar 1 not covered by the first insulating sheath 5 is covered by a first insulating layer 11. The first insulating layer 11 also covers the side of the first insulating sheath 5 where the first elastic plate 8 is located, as well as the first elastic plate 8 and the first limiting block 9, thus achieving external insulation of the first busbar 1 while ensuring that the first limiting block 9 will not bounce away from the first limiting groove 7.

[0060] A second limiting groove 15 is recessed on the side wall of the second busbar 3. A second elastic plate 16 extends along the length of the second busbar 3 on the second insulating sleeve 13. One end of the second elastic plate 16 is integrally fixed to the second insulating sleeve 13, while the other end is suspended. The second elastic plate 16 elastically deforms along the depth direction of the second limiting groove 15. A second limiting block 17, which can be inserted into or detached from the second limiting groove 15, is provided on the suspended end of the second elastic plate 16. A second guide slope 18 is provided on the second limiting block 17. When the second busbar 3 and the second insulating sleeve 13 are engaged, the second busbar 3 first abuts against the second guide slope 18. Since the second elastic plate 16 can elastically deform away from the second limiting groove 15, the second busbar 3 can squeeze and slide with the second guide slope 18 to drive the second limiting block 17 away from the second limiting groove 15 to avoid the second busbar 3. Until the second limiting block 17 and the second limiting groove 15 are aligned, the squeezing force from the second busbar 3 on the second limiting block 17 and the second elastic plate 16 disappears, the second elastic plate 16 resets, and drives the second limiting block 17 to move closer to the second limiting groove 15 to reset, thus realizing the insertion of the second limiting block 17 and the second limiting groove 15.

[0061] At least one set of second limiting groove 15, second elastic plate 16, and second limiting block 17 are arranged circumferentially around the second busbar 3. When the second limiting groove 15 and the second limiting block 17 are inserted and limited, the part of the second busbar 3 not covered by the second insulating sheath 13 is covered by the second insulating layer 19. The second insulating layer 19 also covers the side of the second insulating sheath 13 where the second elastic plate 16 is located, as well as the second elastic plate 16 and the second limiting block 17, thereby achieving external insulation of the second busbar 3 while ensuring that the second limiting block 17 will not bounce away from the second limiting groove 15.

[0062] During assembly, the first insulating sleeve 5 is first fixedly fitted onto the first busbar 1 and covered with the first insulating layer 11; then the second insulating sleeve 13 is fixedly fitted onto the second busbar 3 and covered with the second insulating layer 19. The push block 26, the first pin 25, and the second pin 35 are installed on the first insulating sleeve 5, so that the spring rod 27 is located within the first clearance groove 28, and the first pin 25 and the second pin 35 are respectively inserted into the first insulating sleeve 5. After the push block 26, the first pin 25, and the second pin 35 are installed on the first insulating sleeve 5, the anti-detachment block 37 is then assembled onto the push block 26.

[0063] Subsequently, after aligning the first insertion port 6 and the second insertion port 14, the first busbar 1 and the second busbar 3 are laterally inserted. The protruding tongue 2 and the contact spring 50 are inserted into the receiving slot 4 through the second insertion port 14. The second clearance slot 46 ensures that the protruding tongue 2 can be smoothly inserted laterally. After the protruding tongue 2 and the contact spring 50 are inserted into the receiving slot 4, the contact spring 50 can elastically abut against the inner wall of the receiving slot 4 to achieve electrical connection. At the same time, the second insulating sleeve 13 is inserted into the first insulating sleeve 5 through the first insertion port 6. The first clearance slot 45 ensures that the second insulating sleeve 13 can be smoothly inserted laterally and restricts the second insulating sleeve 13 from coming out along the length direction of the first busbar 1. At the same time, the mounting strip 40 is inserted into the third clearance slot 41.

[0064] When the second insulating sleeve 13 is inserted into the first insulating sleeve 5 through the first insertion port 6 and along the first clearance groove 45, the second insulating sleeve 13, after being pressed and slid together with the third guide slope 23, drives the third limiting block 21 to move away from the protrusion 2 to avoid the second insulating sleeve 13, until the second insulating sleeve 13 is inserted into the preset position. The pressing force from the second insulating sleeve 13 on the third limiting block 21 and the third spring plate 20 disappears, the third spring plate 20 resets, and drives the third limiting block 21 to move closer to the protrusion 2 and reset. At this time, the side wall of the third limiting block 21 away from the third guide slope 23 abuts against the side wall of the second insulating sleeve 13 away from the second insertion port 14, restricting the reverse movement of the second insulating sleeve 13. At this time, the two conductive contact rods 42 and the conductive contact plate 44 are in contact, and the low-voltage circuit is connected.

[0065] Pushing the insert 29 closer to the first insulating sleeve 5 and elastically retracting it prevents the insert 29 from obstructing the movement of the push block 26. At the same time, pushing the push block 26 closer to the third limiting block 21 until the insert 29 slides into the first clearance groove 28. The insert 29 is then released. Under the elastic reset of the spring rod 27, the insert 29 abuts against the side of the first clearance groove 28 where the through groove 30 is located. The push block 26 continues to move closer to the third limiting block 21, so that the first pin 25 is inserted into the third limiting block 21, restricting the third limiting block 21 from bouncing relative to the first insulating sleeve 5. The second pin 35 is inserted into the fourth limiting block 31, restricting the movement of the second insulating sleeve 13 relative to the first insulating sleeve 5. At this time, the insert 29 and the through groove 30 are facing each other. Under the elastic reset of the spring rod 27, the insert 29 and the through groove 30 are inserted, restricting the push block 26 from retracting.

[0066] During disassembly, push the insert 29 close to the first insulating sleeve 5 and elastically retract it until it disengages from the through groove 30. At the same time, push the push block 26 away from the third limiting block 21, causing the first insert 25 to disengage from the third limiting block 21 and the second insert 35 to disengage from the fourth limiting block 31. Finally, drive the third limiting block 21 away from the protruding tongue 2 to elastically move it away from the second insulating sleeve 13, releasing the restriction on the second insulating sleeve 13. Pull the second insulating sleeve 13 to slide it laterally out of the first insulating sleeve 5.

[0067] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A side-connecting busbar assembly, comprising a first busbar (1), a second busbar (3), and an electrical connection structure, characterized in that: The electrical connection structure includes a first insulating sleeve (5) fixedly covering the plug end of the first busbar (1) with the first insertion port (6) facing the side wall of the first busbar (1), a second insulating sleeve (13) fixedly covering the plug end of the second busbar (3) with the second insertion port (14) facing the side wall of the second busbar (3), and a side-to-side plug-in structure disposed between the first busbar (1) and the second busbar (3). The side-to-side plug-in structure includes a protrusion (2) integrally disposed on the plug end of the first busbar (1) within the first insulating sleeve (5) and recessed on the plug end of the second busbar (3). A receiving groove (4) for laterally inserting the tongue (2) is provided on the second insulating sleeve (13), which is connected to the second insertion port (14) and is used for laterally inserting the tongue (2). A first clearance groove (45) is provided on the first insulating sleeve (5), which is connected to the first insertion port (6) and is used for laterally inserting the second insulating sleeve (13) while restricting it from coming out along the length direction of the first busbar (1). A locking structure is provided between the first insulating sleeve (5) and the second insulating sleeve (13) to restrict them from coming out in the opposite direction of the insertion direction.

2. The lateral interlocking busbar assembly according to claim 1, characterized in that: A locking structure includes an elastic blocking member that is spring-loaded at the first insertion port (6) and deforms to avoid the insertion of the second insulating sleeve (13) until the second insulating sleeve (13) is inserted into a preset position and then resets and restricts its reverse movement and disengagement.

3. A side-interlocking busbar assembly according to claim 2, characterized in that: The elastic blocking member includes a third elastic plate (20), which has a groove (51) recessed at the first insertion port (6) along the insertion direction of the second insulating sleeve (13). One end of the third elastic plate (20) is integrally fixed to the bottom of the groove (51), and the other end is suspended and raised to form a third limiting block (21).

4. A side-interlocking busbar assembly according to claim 3, characterized in that: The first insulating sheath (5) is provided with a two-locking structure for the third limiting block (21) to spring or release the limit. The two-locking structure includes a first pin (25) inserted into the first insulating sheath (5) and reciprocating along the length of the first busbar (1). The first pin (25) is inserted into or disengaged from the third limiting block (21) as it moves.

5. A side-interlocking busbar assembly according to claim 4, characterized in that: A three-locking structure is provided between the first pin (25) and the first insulating sleeve (5) to restrict the first pin (25) from retracting in the reverse direction when the first pin (25) is inserted into the third limiting block (21). The three-locking structure includes a push block (26) fixedly provided on the end of the first pin (25) away from the third limiting block (21), a through groove (30) provided on the push block (26) along the insertion direction of the second insulating sleeve (13), and a plug (29) that can be inserted into or detached from the through groove (30) and spring-loaded on the side wall of the first insulating sleeve (5).

6. A laterally interlocking busbar assembly according to any one of claims 1 to 5, characterized in that: A fourth limiting block (31) is provided on the side wall away from the second insertion port (14) of the second insulating sleeve (13), and a second pin (35) is provided on the first insulating sleeve (5) along the length direction of the first busbar (1) that can be inserted into or detached from the fourth limiting block (31).

7. A side-interlocking busbar assembly according to claim 1, characterized in that: A contact spring (50) is fixedly provided on the upper end face and / or lower end face of the tongue (2) so that it elastically abuts against the inner wall of the receiving groove (4) when the tongue (2) is inserted into the receiving groove (4). A third insulating layer (12) is fixed on the side wall of the tongue (2) where the contact spring (50) is not provided.

8. A side-interlocking busbar assembly according to claim 1, characterized in that: The first busbar (1) and the first insulating sheath (5) are connected by a first fixing structure. The first fixing structure includes a first limiting groove (7) recessed on the side wall of the first busbar (1) and a first limiting block (9) that can be inserted into or detached from the first limiting groove (7) and springs along the depth direction of the first limiting groove (7) on the first insulating sheath (5). After the first limiting groove (7) and the first limiting block (9) are inserted and limited, a first insulating layer (11) is covered on the outside of the first busbar (1) to restrict the first limiting block (9) from detaching from the first limiting groove (7).

9. A side-interlocking busbar assembly according to claim 1, characterized in that: An installation strip (40) is fixedly provided on the outer wall of the second insulating sleeve (13). The first insertion port (6) is recessed along the insertion direction of the second insulating sleeve (13) and a third clearance groove (41) is provided for the installation strip (40) to slide. A high-voltage interlock structure for detecting whether the assembly is qualified is provided between the installation strip (40) and the third clearance groove (41).

10. A side-interlocking busbar assembly according to claim 9, characterized in that: The high-voltage interlock structure includes two conductive contact rods (42) provided at the bottom of the third clearance groove (41), a conductive contact plate (44) fixedly provided on the side wall of the mounting strip (40) near the conductive contact rods (42), and a signal device (49) electrically connected to the ends of the two conductive contact rods (42) away from the conductive contact plate (44). The signal device (49) is used to detect whether the conductive contact plate (44) and the two conductive contact rods (42) are in contact when the first insulating sleeve (5) and the second insulating sleeve (13) are inserted and limited. If they are in contact, the assembly is qualified. Conversely, if the assembly is not done properly, the assembly is defective.

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