A composite busbar and crimping forming device for an on-board controller

Abstract

This application relates to the technical field of composite busbars, disclosing a composite busbar for an on-board controller and a press-fitting device thereof. The press-fitting device comprises a base plate, a cover plate, and a positioning assembly disposed on the base plate. The positioning assembly comprises a first seat, a second seat, and an extrusion seat disposed on the base plate, wherein the first seat is higher than the second seat, and the first and second seats form a stepped structure for supporting the composite busbar. The extrusion seat is connected to the second seat and is provided with a positioning seat sliding toward one side of the first seat. The positioning seat slides toward or away from the first seat. This application enables better hot pressing of stepped composite busbars.

Description

Technical Field

[0001] The present application relates to the technical field of composite busbar preparation, and in particular to a composite busbar for an on-board controller and a crimping and forming device thereof. Background Art

[0002] The on-board controller composite busbar (also known as laminated busbar or laminated busbar) is a multi-layer composite structure connecting bar, mainly used to transmit electrical energy from the battery to the motor of the electric vehicle, becoming the core power transmission equipment of the electric vehicle.

[0003] Composite busbars are made of one or more layers of conductive and insulating materials. These materials are laminated together and then bonded together through hot pressing to form a multi-layered busbar. This structure enables the composite busbar to carry high currents and voltages while maintaining low impedance and inductance.

[0004] In the hot pressing process, the composite busbar is formed by applying adhesive between the conductive material and the insulating layer, and then using a mold for hot pressing. The composite busbar has a variety of shapes, such as rectangular structure, U-shaped structure, special shape structure, etc., to meet the needs of different application scenarios. Figure 1 Some composite busbar structures have a stepped structure. During the hot pressing process, both the vertical and horizontal parts of the stepped structure need to be extruded. Currently, the hot pressing effect of the stepped part is poor, which makes it easy for the bonding stability of this part to fall short of expectations. Summary of the Invention

[0005] In a first aspect, the present application provides a compression molding device.

[0006] This application adopts the following technical solutions:

[0007] A compression molding device, applied to a stepped composite busbar, comprises a base plate, a cover plate, and a positioning assembly disposed on the base plate; the positioning assembly comprises a first seat, a second seat, and an extrusion seat disposed on the base plate, the first seat being higher than the second seat, and the first and second seats forming a stepped structure for supporting the composite busbar; the extrusion seat is connected to the second seat, and a positioning seat is provided on one side of the extrusion seat that slides toward the first seat, and the positioning seat slides toward or away from the first seat;

[0008] The cam is secured to the bottom of the second support frame and is adapted to engage the support member when the cam is engaged with the first support member.

[0009] By adopting the above technical solution, the composite busbar is placed on the first seat and the second seat, and the cover plate moves downward to push the extrusion seat downward. When the support member restricts the downward movement of the extrusion seat, the extrusion seat approaches the horizontal part of the composite busbar step. At this time, the downward movement of the cover plate can drive the positioning seat to move, so that the positioning seat is pressed against the vertical part of the composite busbar. The positioning seat slides and releases the positioning effect of the support member on the extrusion seat, allowing the extrusion seat to continue to move downward, so that the extrusion seat is pressed against the horizontal part of the composite busbar step again. By pressing the stepped vertical and horizontal parts in steps, the extrusion effect on the stepped part of the composite busbar is improved, and the scratching of the busbar surface is greatly reduced.

[0010] Optionally, a sliding groove is provided on the extrusion seat, and a sliding rod is installed on the positioning seat to slide through the sliding groove. A first reset member is provided between the sliding rod and the inner wall of the sliding groove. The end of the sliding rod away from the positioning seat has a portion that exceeds the surface of the extrusion seat. The end of the sliding rod away from the positioning seat is pressed by the trigger member to slide, and the first reset member is used to provide a force to reset the positioning seat.

[0011] By adopting the above technical solution, the triggering member is pressed by the movement of the cover plate, which can push the end of the sliding rod to drive the sliding rod to slide, thereby making the positioning seat press the vertical part of the composite busbar step against the first seat.

[0012] Optionally, the trigger member includes a trigger plate that is slid up and down on the upper surface of the extrusion seat, a second reset member is provided between the trigger plate and the surface of the extrusion seat, and the trigger plate is provided with a trigger bar extending downward. When the trigger plate is pressed by the cover plate and moves downward, the trigger bar moves downward and pushes the sliding rod to slide.

[0013] By adopting the above technical solution, the trigger plate moves downward, thereby causing the trigger bar to abut against the end of the sliding rod and drive the sliding rod to slide.

[0014] Optionally, a positioning column is provided on the lower surface of the trigger plate, a positioning groove is provided on the surface of the extrusion seat for the positioning column to slide, and the second reset member is installed in the positioning groove. When the trigger plate moves downward, the second reset member is compressed.

[0015] Optionally, the support member includes a support plate horizontally slidably arranged on the surface of the second seat, a support column is provided on the surface of the support plate, a clearance groove is provided on the surface of the connecting plate, and a support rod is provided on the surface of the support plate that passes through the clearance groove and is slidably inserted into the lower surface of the positioning seat; when the positioning seat moves toward the direction close to the first seat, the support plate can be driven to slide by the support rod, and the support column can move to the position of the clearance groove.

[0016] By adopting the above technical solution, the support column slides to the position of the clearance groove, so that the connecting plate can continue to move downward.

[0017] Optionally, a connecting groove is provided on the positioning seat, the end of the sliding rod is connected to the connecting groove, and the sliding rod can slide up and down in the connecting groove, and the inner bottom surface of the connecting groove is provided with a third reset member connected to the bottom surface of the sliding rod. When the cover plate drives the extrusion seat to move downward, the sliding rod can move downward in the connecting groove, and the third reset member is compressed.

[0018] By adopting the above technical solution, the sliding rod can continue to move downward with the extrusion seat, while the positioning seat is not likely to move downward, thereby reducing scratches on the stepped vertical part of the composite busbar.

[0019] Optionally, a vertically upward guide column is provided on the surface of the second seat, and the guide column slides through the connecting plate and the extrusion seat.

[0020] By adopting the above technical solution, the extrusion seat can be guided so that the extrusion seat is not easily offset.

[0021] Optionally, a vertical rod is provided on the lower surface of the connecting plate, and a plug-in slot for the vertical rod to be slidably plugged into is opened on the surface of the second seat, and the elastic member is installed in the plug-in slot.

[0022] By adopting the above technical solution, the stability of the up and down movement of the connecting plate is improved.

[0023] Optionally, limiting blocks are provided on both sides of the side walls of the sliding rod, and the inner wall of the connecting groove is provided with limiting grooves for allowing the limiting blocks to slide up and down.

[0024] By adopting the above technical solution, the stability of the connection between the sliding rod and the positioning seat is improved.

[0025] In a second aspect, the present application provides a vehicle-mounted controller composite busbar.

[0026] A composite busbar for an on-vehicle controller is prepared using the crimping forming device in the above solution.

[0027] In summary, this application has at least one of the following beneficial effects:

[0028] 1. The stepped vertical and horizontal parts of the composite busbar are extruded step by step through the extrusion seat and positioning seat to improve the extrusion effect;

[0029] 2. The extrusion seat is installed on the connecting plate, and the elastic member drives the connecting plate to move upward, which can drive the extrusion seat to reset upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of the composite busbar;

[0031] Figure 2 It is a structural diagram of an embodiment of the present application;

[0032] Figure 3 Schematic diagram of an explosion of the cover plate in an embodiment of the present application;

[0033] Figure 4 is an exploded schematic diagram of an extrusion seat in an embodiment of the present application;

[0034] Figure 5 is an exploded schematic diagram of a connecting plate in an embodiment of the present application;

[0035] Figure 6 is a schematic diagram of a trigger member in an embodiment of the present application;

[0036] Figure 7 is a schematic cross-sectional view of an extrusion seat in an embodiment of the present application;

[0037] Figure 8 is a schematic diagram of the support.

[0038] Explanation of the accompanying drawings: 1. Composite busbar; 2. Bottom plate; 3. Cover plate; 4. Positioning assembly; 41. First seat; 42. Second seat; 43. Extrusion seat; 5. Positioning seat; 6. Connecting plate; 7. Elastic member; 8. Trigger member; 81. Trigger plate; 82. Trigger bar; 9. Support member; 91. Support plate; 92. Support column; 10. Sliding groove; 11. Sliding rod; 12. First reset member; 13. Second reset member; 14. Positioning column; 15. Positioning groove; 16. Support rod; 17. Slot; 18. Give way groove; 19. Connecting groove; 20. Third reset member; 21. Guide column; 22. Vertical rod; 23. Plug-in groove; 24. Limit block; 25. Limit groove; 26. Accommodating groove. DETAILED DESCRIPTION

[0039] The following is combined with Figure 2-Figure 8 This application is described in further detail. Example

[0040] The present application embodiment discloses a compression molding device. Figure 2 and Figure 3 The compression molding device is primarily used in the hot pressing process of stepped composite busbars 1. It includes a base plate 2, a cover plate 3, and a positioning assembly 4 mounted on the base plate 2. Two sets of positioning assemblies 4 are symmetrically fixed on the base plate 2, allowing simultaneous hot pressing of two composite busbars. After the composite busbar 1 is placed on the positioning assemblies 4, the compression molding device is placed on the hot press, and the composite busbar 1 is hot pressed by squeezing the cover plate 3 downward. A guide sleeve structure is provided between the cover plate 3 and the base plate 2, preventing the cover plate 3 from shifting during extrusion.

[0041] Reference Figure 3 and Figure 4 The positioning assembly 4 includes a first seat 41 and a second seat 42 mounted on the base plate 2, as well as an extrusion seat 43 for cooperating with the first and second seats 41, 42. Both the first and second seats 41, 42 are elongated structures. The first seat 41 is taller than the second seat 42 and is located outside the second seat 42, forming a stepped structure. The composite busbar 1 is placed on the first and second seats 41, 42. The horizontal portion of the stepped structure of the composite busbar 1 abuts the surface of the second seat 42, while the vertical portion abuts the sidewall of the first seat 41. The extrusion seat 43 is mounted above the second seat 42, and a positioning seat 5 is provided on the side of the extrusion seat 43 that slides toward the first seat 41. The positioning seat 5 can slide toward the first seat 41 and press the composite busbar 1 against the surface of the first seat 41. The composite busbar 1 has some bent terminal structures, and corresponding spaces for accommodating the terminals are provided in the first and second seats.

[0042] Reference Figure 4 and Figure 5The upper surfaces of both ends of the second seat 42 are slidably mounted with connecting plates 6, and the extrusion seat 43 is mounted on the upper surface of the connecting plate 6. The surface of the second seat 42 is fixed with an upwardly extending guide column 21, which slides through the connecting plate 6 and the extrusion seat 43, so that the extrusion seat 43 is not easily offset on the connecting plate 6, and the extrusion seat 43 is easy to remove from the connecting plate 6. Figure 3 An elastic member 7 is provided between the lower surface of the connecting plate 6 and the surface of the second seat 42. When the cover plate 3 moves downward and drives the extrusion seat 43 to move downward, the connecting plate 6 moves downward and the elastic member 7 is compressed. The elastic member 7 provides a force for the connecting plate 6 to reset upward.

[0043] A trigger 8 is mounted on the upper surface of the extrusion seat 43, and a support 9 is mounted on the upper surface of the second seat 42. The support 9 is located below the connecting plate 6. The positioning seat 5 and the support 9 are linked, and when the positioning seat 5 slides, it simultaneously drives the support 9 to slide. When the cover plate 3 moves downward, it presses against the trigger 8 and simultaneously drives the extrusion seat 43 downward. After the connecting plate 6 moves downward a certain distance, the support 9 abuts the lower surface of the connecting plate 6, preventing it from moving downward further. At this point, the extrusion seat 43 almost abuts the horizontal surface of the step of the composite busbar 1. Continued downward movement of the cover plate 3 drives the positioning seat 5 to slide via the trigger 8, causing the positioning seat 5 to move toward the first seat 41 and abut against the side wall of the composite busbar 1. This movement of the positioning seat 5 drives the support 9 to slide, releasing the restraining effect of the support 9 on the connecting plate 6. Continued downward movement of the cover plate 3 drives the extrusion seat 43 downward against the surface of the composite busbar 1.

[0044] Reference Figure 6 and Figure 7 A sliding groove 10 is horizontally provided on the extrusion seat 43, and a sliding rod 11 is installed on the side wall of the positioning seat 5. The sliding rod 11 slides horizontally through the sliding groove 10, and the end of the sliding rod 11 has a portion that exceeds the surface of the extrusion seat 43. A first reset member 12 is installed between the sliding rod 11 and the sliding groove 10. The first reset member 12 is a spring, and the spring is sleeved on the side wall of the sliding rod 11. A stepped hole-shaped portion is provided at one end of the sliding groove 10 away from the first seat 41 to provide space for the installation of the spring. In the initial state, the end of the sliding rod 11 has a portion that exceeds the surface of the extrusion seat 43, and the trigger member 8 squeezes the end of the sliding rod 11 so that the sliding rod 11 slides in the sliding groove 10, and the first reset member 12 is compressed to provide a force for resetting the sliding rod 11.

[0045] Reference Figure 4 and Figure 6The trigger member 8 includes a trigger plate 81 that is slidably mounted on the surface of the extrusion seat 43. A second reset member 13 is mounted between the trigger plate 81 and the extrusion seat 43. A trigger bar 82 extending downward is mounted on the trigger plate 81. The end of the trigger bar 82 has an inclined surface. Figure 7 When the trigger plate 81 moves downward, the trigger bar 82 can abut against the end of the sliding rod 11, thereby pushing the sliding rod 11 to slide. Furthermore, in order to make the sliding of the trigger plate 81 on the extrusion seat 43 more stable, a positioning column 14 is fixed to the lower surface of the trigger plate 81, and a positioning groove 15 is provided on the extrusion seat 43 for the positioning column 14 to slide and insert. The second reset member 13 is a spring, which is installed in the positioning groove 15. When the trigger plate 81 moves downward, the spring is compressed, providing the force to reset the trigger plate 81 upward. Further preferably, a receiving groove 26 can be provided on the surface of the extrusion seat 43, and the trigger plate 81 can be squeezed into the receiving groove 26, so that the surface of the extrusion seat 43 and the surface of the trigger plate 81 are flush.

[0046] Reference Figure 5 and Figure 8 The support member 9 includes a support plate 91 that slides horizontally on the surface of the second seat 42, and a support column 92 extending upward is fixed to the surface of the support plate 91. A sliding fit such as a slider groove can be provided between the support plate 91 and the surface of the second seat 42, so that the sliding of the support plate 91 is more stable. When the connecting plate 6 moves downward, the support column 92 abuts against the lower surface of the connecting plate 6, so that the trigger plate 81 continues to move downward and pushes the movement of the positioning seat 5. The positioning seat 5 and the support plate 91 are linked, that is, the movement of the positioning seat 5 drives the movement of the support plate 91, so that the support column 92 releases the supporting effect on the connecting plate 6.

[0047] Reference Figure 7 and Figure 8 , a clearance groove 18 is provided on the connecting plate 6, Figure 8 The state shown in FIG. 1 shows that the support column 92 has moved to the clearance groove 18. A support rod 16 is fixed to the surface of the support plate 91, and a slot 17 is formed on the lower surface of the fixing seat. The support rod 16 is slidably inserted into the slot 17. When the positioning seat 5 slides horizontally, the support plate 91 is moved by the support rod 16, and the support column 92 can move to the position of the clearance groove 18, so that the support column 92 no longer supports the connecting plate 6.

[0048] Reference Figure 5 and Figure 8 Vertical rods 22 are fixed to the lower surface of the connecting plate 6. The vertical rods 22 are preferably fixed at the four corners of the connecting plate 6. The second seat 42 has a surface with insertion slots 23 for the vertical rods 22 to be inserted. The elastic member 7 is a spring and is installed in the insertion slots 23. The vertical rods 22 and the insertion slots 23 cooperate to achieve the up and down sliding of the connecting plate 6.

[0049] Reference Figure 6 and Figure 7 The positioning seat 5 is provided with a connecting groove 19, into which one end of the sliding rod 11 is mounted. Limiting blocks 24 are fixed to the two side walls of the end of the sliding rod 11. Limiting grooves 25 are provided on the inner wall of the connecting groove 19. The limiting blocks 24 slide up and down in the limiting grooves 25, thereby enabling the sliding rod 11 to move up and down relative to the connecting groove 19. A third return member 20 is also mounted at the bottom of the connecting groove 19. The third return member 20 is a spring and is mounted on the bottom surface of the connecting groove 19.

[0050] When the support member 9 releases the movement of the connecting plate 6, the extrusion seat 43 is squeezed by the cover plate 3 and will move downward a certain distance to press against the composite busbar 1, and the support rod 16 contacts the inner top surface of the slot 17, so that the positioning seat 5 cannot move downward, thereby avoiding the situation where the positioning seat 5 scratches the surface of the composite busbar 1 due to the downward movement; and the downward movement of the extrusion seat 43 can drive the sliding rod 11 to move relatively downward in the sliding groove 10, and the third reset member 20 is compressed, thereby not affecting the movement of the extrusion seat 43.

[0051] The implementation principle of a crimping forming device in an embodiment of the present application is as follows: the cover plate 3 moves downward, driving the extrusion seat 43 to move downward until the support column 92 abuts against the connecting plate 6. At this time, the extrusion seat 43 and the composite busbar 1 are very close to or abut against each other, but there is no force between the two; the cover plate 3 continues to move downward and squeezes the trigger member 8, so that the positioning seat 5 slides and presses against the side wall of the composite busbar 1. The sliding process of the positioning seat 5 drives the support column 92 to move. The support column 92 moves to the position of the give way groove 18, so that the support column 92 no longer supports the connecting plate 6. The cover plate 3 can drive the extrusion seat 43 to move downward and abut against the composite busbar 1, and during the downward movement of the extrusion seat 43, the fixed seat will not slide accordingly, but the sliding rod 11 will slide in the connecting groove 19. Example

[0052] This embodiment discloses a composite busbar for an on-vehicle controller, which is prepared using the crimping molding device described in Example 1.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A crimping forming device, applied to a stepped composite busbar (1), characterized in that: The invention comprises a base plate (2), a cover plate (3) and a positioning assembly (4) arranged on the base plate (2); the positioning assembly (4) comprises a first seat (41), a second seat (42) and an extrusion seat (43) arranged on the base plate (2), the first seat (41) being higher than the second seat (42), and the first seat (41) and the second seat (42) forming a stepped structure for supporting the composite busbar (1); the extrusion seat (43) is connected to the second seat (42), and a positioning seat (5) is provided on the side of the extrusion seat (43) that slides toward the first seat (41), and the positioning seat (5) slides in a direction close to or away from the first seat (41); Connecting plates (6) are slidably mounted on the upper surfaces of both ends of the second seat (42), and an elastic member (7) is provided between the second seat (42) and the lower surface of the connecting plate (6). The extrusion seat (43) is mounted on the connecting plate (6); a trigger member (8) is provided on the upper surface of the extrusion seat (43), and a support member (9) is provided on the upper surface of the second seat (42). The support member (9) and the positioning seat (5) are linked together. When the cover plate (3) moves downward to drive the extrusion seat (43) to move downward, the elastic member (7) is compressed, and the support member (9) is pressed against the bottom surface of the second seat (42). The support member (9) abuts against the lower surface of the connecting plate (6), and at this time, the extrusion seat (43) is close to the surface of the second seat (42), and the cover plate (3) continues to move downward, and the trigger member (8) drives the positioning seat (5) to move in the direction of the first seat (41) and abut against the side wall of the composite busbar (1), and the positioning seat (5) can drive the support member (9) to slide to release the support state of the support member (9) on the connecting plate (6), and the cover plate (3) continues to move downward so that the extrusion seat (43) abuts against the surface of the composite busbar (1); A sliding groove (10) is provided on the extrusion seat (43), a sliding rod (11) is installed on the positioning seat (5) and slides through the sliding groove (10), a first reset member (12) is provided between the sliding rod (11) and the inner wall of the sliding groove (10), the end of the sliding rod (11) away from the positioning seat (5) has a portion that exceeds the surface of the extrusion seat (43), the end of the sliding rod (11) away from the positioning seat (5) is pressed by the trigger member (8) to slide, and the first reset member (12) is used to provide a force for resetting the positioning seat (5); The support member (9) includes a support plate (91) horizontally slidably arranged on the surface of the second seat (42), a support column (92) is arranged on the surface of the support plate (91), a clearance groove (18) is opened on the surface of the connecting plate (6), and a support rod (16) is arranged on the surface of the support plate (91) passing through the clearance groove (18) and slidably plugged into the lower surface of the positioning seat (5); when the positioning seat (5) moves in a direction close to the first seat (41), the support plate (91) can be driven to slide by the support rod (16), and the support column (92) can move to the position of the clearance groove (18).

2. A compression molding device according to claim 1, characterized in that: The trigger member (8) comprises a trigger plate (81) which is slidably arranged on the upper surface of the extrusion seat (43) up and down, a second reset member (13) is arranged between the trigger plate (81) and the surface of the extrusion seat (43), and the trigger plate (81) is provided with a trigger bar (82) extending downward. When the trigger plate (81) is pressed by the cover plate (3) and moves downward, the trigger bar (82) moves downward and pushes the sliding rod (11) to slide.

3. A compression molding device according to claim 2, characterized in that: A positioning column (14) is provided on the lower surface of the trigger plate (81), a positioning groove (15) for the positioning column (14) to slide is provided on the surface of the extrusion seat (43), and the second reset member (13) is installed in the positioning groove (15). When the trigger plate (81) moves downward, the second reset member (13) is compressed.

4. A compression molding device according to claim 3, characterized in that: A connecting groove (19) is provided on the positioning seat (5), and the end of the sliding rod (11) is connected to the connecting groove (19), and the sliding rod (11) can slide up and down in the connecting groove (19). The inner bottom surface of the connecting groove (19) is provided with a third reset member (20) connected to the bottom surface of the sliding rod (11). When the cover plate (3) drives the extrusion seat (43) to move downward, the sliding rod (11) can move downward in the connecting groove (19), and the third reset member (20) is compressed.

5. The compression molding device according to claim 4, characterized in that: A vertically upward guide column (21) is provided on the surface of the second seat (42), and the guide column (21) slides through the connecting plate (6) and the extrusion seat (43).

6. The compression molding device according to claim 5, characterized in that: A vertical rod (22) is provided on the lower surface of the connecting plate (6), and a plug-in slot (23) for slidingly plugging the vertical rod (22) is provided on the surface of the second seat (42), and the elastic member (7) is installed in the plug-in slot (23).

7. The compression molding device according to claim 6, characterized in that: Limiting blocks (24) are provided on both sides of the side walls of the sliding rod (11), and limiting grooves (25) for the limiting blocks (24) to slide up and down are provided on the inner wall of the connecting groove (19).

8. A composite busbar for an on-board controller, characterized by: It is prepared using the compression molding device according to any one of claims 1 to 7.

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