A vehicle-mounted controller composite busbar and its hot pressing mold

Abstract

The present application relates to the technical field of composite busbars and discloses a composite busbar for an on-board controller and a hot pressing mold thereof. The hot pressing mold comprises a lower mold and an upper mold that move relative to each other in a linear direction. The lower mold comprises a support seat, a first pressure seat, and a second pressure seat. The support seat is used to support the composite busbar so that the relative movement direction of the upper and lower molds is perpendicular to the first pressure-bearing surface. The first pressure seat is used to be placed on and abut against the first pressure-bearing surface. The second pressure seat slides on the support seat, while the second pressure seat is opposite to the second pressure-bearing surface, and the sliding direction of the second pressure seat is perpendicular to the second pressure-bearing surface. The upper mold comprises a base, a pressure seat, and a push seat. The base is opposite to the support seat. The pressure seat is arranged on the base and is opposite to the first pressure seat. The push seat is arranged on the base and cooperates with the second pressure seat. The present application can improve the hot pressing effect of the hot pressing mold on composite busbars with multiple pressure-bearing surfaces.

Description

Technical Field

[0001] The present application relates to the technical field of composite busbars, and in particular to a composite busbar for an on-board controller and a hot pressing mold thereof. Background Art

[0002] The vehicle-mounted controller composite busbar is the key carrier for large current transmission inside the controller, and is responsible for the electrical interconnection of power devices, capacitors and other components.

[0003] During the processing and forming of composite busbars, multiple layers of materials are stacked and then bonded by hot pressing. Existing hot pressing dies usually press the composite busbars between the upper and lower dies by moving them linearly relative to each other. However, the pressure surface of the composite busbars under hot pressing is usually perpendicular to the relative linear movement direction of the upper and lower dies. Therefore, existing hot pressing dies are less adaptable to composite busbars that require hot pressing on multiple sides, such as Figure 1 The composite busbar shown has a first pressure-bearing surface and a second pressure-bearing surface that need to be hot-pressed, and the angle between the first pressure-bearing surface and the second pressure-bearing surface is greater than 0°. Summary of the Invention

[0004] In a first aspect, the present application provides a hot pressing mold, which adopts the following technical solution:

[0005] A hot pressing die is suitable for a composite busbar having a first pressure-bearing surface and a second pressure-bearing surface with an angle greater than 0° therebetween, comprising: a lower die and an upper die that move relative to each other along a straight line;

[0006] The lower die includes a support seat, a first pressure seat, and a second pressure seat; the support seat is used to support the composite busbar so that the relative movement direction of the upper die and the lower die is perpendicular to the first pressure surface; the first pressure seat is used to be placed on and abut against the first pressure surface; the second pressure seat slides on the support seat, and at the same time, the second pressure seat is opposite to the second pressure surface, and the sliding direction of the second pressure seat is perpendicular to the second pressure surface;

[0007] The upper mold includes a base, a pressing seat and a pushing seat; the base is opposite to the supporting seat; the pressing seat is arranged on the base and is opposite to the first pressing seat; the pushing seat is arranged on the base for cooperating with the second pressing seat;

[0008] Wherein, the second pressure seat and / or the pushing seat have an inclined portion, and when the upper mold and the lower mold move toward each other, the pushing seat pushes the second pressure seat through the inclined portion, so that the second pressure seat moves toward the composite busbar; when the second pressure seat moves to press against the second pressure-bearing surface, the pressing seat simultaneously presses against the side of the first pressure seat facing away from the first pressure-bearing surface.

[0009] By adopting this technical solution, the lower mold's support seat, first and second pressure seats, and the upper mold's base, pressure seat, and push seat enable simultaneous hot pressing of composite busbars with angled first and second pressure surfaces. The inclined portion enables the push seat to drive the second pressure seat to slide through relative movement, ensuring uniform force on the second pressure surface and improving hot pressing accuracy and efficiency.

[0010] Optionally, a plurality of the pushing seats are arranged on the base at intervals along a direction parallel to the length extension of the second pressure seat.

[0011] By adopting the above technical solution, multiple push seats are arranged at intervals along the length direction of the second press seat, so that the second press seat is subjected to more uniform force during the sliding process, further improving the hot pressing quality and the forming stability of the composite busbar.

[0012] Optionally, a guide bar is provided on the support seat to cooperate with the second pressure seat, and the length extension direction of the guide bar is perpendicular to the second pressure surface. The guide bar limits the displacement of the second pressure seat along the width direction of the guide bar and allows the second pressure seat to slide along the length direction of the guide bar.

[0013] By adopting the above technical solution, the setting of the guide strip limits the displacement of the second press seat along the width direction, while allowing it to slide along the length direction, so that the movement path of the second press seat is precisely controllable, reducing the offset or shaking during the hot pressing process.

[0014] Optionally, the composite busbar has a third pressure-bearing surface, the third pressure-bearing surface is adjacent to the first pressure-bearing surface, and the angle between the third pressure-bearing surface and the first pressure-bearing surface is greater than 0°; the side portion of the first pressure seat abuts against the third pressure-bearing surface.

[0015] By adopting the above technical solution, the side of the first pressure seat abuts the third pressure surface, thereby achieving simultaneous hot pressing of the three surfaces of the composite busbar, further enhancing the overall structural strength and electrical performance of the composite busbar, and meeting the processing requirements of complex-shaped composite busbars.

[0016] Optionally, the first pressure seat includes a main seat and a buffer pad; the buffer pad is arranged on the side of the main seat and has elasticity.

[0017] By adopting the above technical solution, the setting of the buffer pad can absorb the impact force during the hot pressing process and reduce damage to the composite busbar. At the same time, the selection of elastic material improves the fit to the third pressure surface and improves the uniformity and stability of hot pressing.

[0018] Optionally, there is a guide structure between the upper mold and the lower mold for guiding the relative movement of the upper mold and the lower mold.

[0019] Optionally, the guide structure includes a guide column and a guide sleeve; the guide column is arranged on the support seat, and the guide sleeve is arranged on the base; when the upper mold and the lower mold are close to each other, the guide sleeve slides onto the guide column.

[0020] Optionally, the guide structure includes

[0021] A base rod is installed in the support seat and extends along the relative movement direction of the upper mold and the lower mold. The support seat has an accommodating groove for making way for the base rod;

[0022] The guide groups include a plurality of groups, and the plurality of guide groups are spaced apart on the base rod along the length direction of the base rod; each guide group includes a limiting rod and an abutment ring, wherein the limiting rod is hinged to the outer periphery of the base rod and a plurality of limiting rods are arranged along the circumference of the base rod, and the abutment ring is threadedly sleeved on the base rod; and

[0023] A plug sleeve is provided on the base and corresponds one to one with the base rod;

[0024] When the upper mold and the lower mold approach each other, the plug sleeve enters the accommodating groove and simultaneously sleeves the base rod and the guide group, so that the free end of the limit rod abuts against the inner wall of the plug sleeve, and the outer periphery of the abutting ring abuts against the side of the limit rod toward the base rod.

[0025] By adopting the above technical solution, the position of the limit rod abutting the abutment ring when the limit rod is pushed by the plug sleeve can be adjusted by threaded movement of the abutment ring, so that the limit rod can better guide the plug sleeve.

[0026] Optionally, the guide group further includes an elastic member connected between the base rod and the limiting rod, and the elastic force of the elastic member gives the free end of the limiting rod a tendency to press against the inner wall of the support seat at the accommodating groove.

[0027] By adopting the above technical solution, the elastic member can push the free end of the limiting rod toward the inner wall of the accommodating groove when the upper and lower molds are demoulded, so as to hit the support seat to help reduce the demoulding resistance.

[0028] In a second aspect, the present application provides a vehicle-mounted controller composite busbar, which adopts the following technical solution:

[0029] A composite busbar for an on-vehicle controller is prepared using the hot pressing mold described above.

[0030] In summary, this application has at least one of the following beneficial effects:

[0031] 1. The hot pressing mold can simultaneously abut and hot press multiple pressure-bearing surfaces of the composite busbar that form an angle between them, improving the processing adaptability and the assembly effect of the composite busbar;

[0032] 2. By setting up the guide structure, the stability and accuracy of the relative movement between the upper and lower dies are improved, the precision and reliability of the hot pressing process are improved, and thus the hot pressing quality of the composite busbar is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural diagram of the composite busbar;

[0034] Figure 2 This is a schematic structural diagram of Example 1 of the present application;

[0035] Figure 3 Schematic diagram of the explosion structure of the composite busbar, the first pressure seat, and the second pressure seat relative to the support seat when they cooperate in Example 1 of the present application;

[0036] Figure 4 Schematic diagram of the explosion structure of the composite busbar, the first pressure seat, and the second pressure seat in Example 1 of the present application;

[0037] Figure 5 This is a schematic structural diagram of the upper mold in Example 1 of the present application;

[0038] Figure 6 This is a schematic structural diagram of the second embodiment of the present application;

[0039] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure at A in the middle;

[0040] Figure 8 yes Figure 6 Cross-section view at the middle BB.

[0041] Explanation of the accompanying drawings: 1. First pressure surface; 2. Second pressure surface; 3. Third pressure surface; 4. Lower mold; 41. Support seat; 42. First pressure seat; 421. Main seat; 422. Buffer pad; 43. Second pressure seat; 5. Upper mold; 51. Base; 52. Pressure seat; 53. Push seat; 6. Inclined portion; 7. Guide strip; 8. Guide column; 9. Guide sleeve; 10. Base rod; 11. Accommodating groove; 12. Guide group; 121. Limit rod; 122. Abutment ring; 123. Elastic member; 13. Plug sleeve; 15. First supporting surface; 16. Second supporting surface; 17. Third supporting surface; 18. Protrusion; 19. Guide groove; 20. Mounting portion; 21. Threaded groove. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-8 This application is described in further detail.

[0043] Example 1;

[0044] The embodiment of the present application discloses a hot pressing mold suitable for composite busbars. Figure 1 The composite busbar has a first pressure-bearing surface 1, a second pressure-bearing surface 2, and a third pressure-bearing surface 3 that need to be hot-pressed. The first pressure-bearing surface 1 and the second pressure-bearing surface 2 are adjacent to each other and perpendicular to each other. The first pressure-bearing surface 1 and the second pressure-bearing surface 2 together form a stepped structure on the composite busbar. The third pressure-bearing surface 3 has two sides that are adjacent to the first pressure-bearing surface 1 and are perpendicular to the first pressure-bearing surface 1, so that the third pressure-bearing surface 3 and the first pressure-bearing surface 1 together form a U-shaped structure on the composite busbar, and the third pressure-bearing surface 3 is also perpendicular to the second pressure-bearing surface 2.

[0045] Reference Figure 2 The hot pressing mold includes an upper mold 5 and a lower mold 4. The lower mold 4 is used to place and pre-position the composite busbar. The upper mold 5 is used to apply pressure to the lower mold 4 and transmit the pressure to the composite busbar. When the mold is in use, the upper mold 5 is assembled on the lower mold 4 in a straight line. It should be noted that the hot pressing mold in this embodiment can assemble two composite busbar workpieces.

[0046] Reference Figure 3 and Figure 4 , wherein the lower mold 4 includes a support seat 41, a first pressure seat 42, and a second pressure seat 43. Specifically, the support seat 41 is used to place the composite busbar. The support seat 41 has a first support surface 15, a second support surface 16, and a third support surface 17 adjacent to each other in sequence. The first support surface 15 is used to support the side of the composite busbar facing away from the first pressure-bearing surface 1, the second support surface 16 is used to support the side of the composite busbar facing away from the second pressure-bearing surface 2, and the third support surface 17 is lower than the first support surface 15. To accommodate the shape of the composite busbar, in this embodiment, the first support surface 15 and the third support surface 17 are parallel and perpendicular to the second support surface 16. At the same time, there are two sets of first support surfaces 15 and second support surfaces 16 to accommodate two sets of composite busbars. The two first support surfaces 15 are located on the same horizontal plane, the two second support surfaces 16 are parallel and opposite to each other, and the third support surface 17 is connected between the two second support surfaces 16 to accommodate two sets of composite busbars at the same time.

[0047] The support seat 41 also has an upwardly projecting protrusion 18 on the first support surface 15. This protrusion 18 is square-shaped and can be integrally formed with the first support surface 15 or bolted thereto. There are two protrusions 18 on each first support surface 15, with a space between the two protrusions 18 to limit the position of the composite busbar. When the composite busbar is placed on the support seat 41, the two sides of the composite busbar facing away from the two third pressure-bearing surfaces 3 respectively abut against the opposing sides of the two protrusions 18.

[0048] The first pressure seat 42 corresponds to the composite busbar one-to-one. Each first pressure seat 42 includes a main seat 421 and a buffer pad 422. The main seat 421 is made of a hard material and is in the shape of a block. In this embodiment, the main seat 421 is made of a metal material. The buffer pad 422 is installed on the opposite sides of the main seat 421 by gluing, and the buffer pad 422 is made of a material that can be elastically deformed, such as rubber, high-temperature resistant sponge, etc. After the composite busbar is placed on the support seat 41, the first pressure seat 42 is placed in the space enclosed by the first pressure surface 1 and the third pressure surface 3. The lower surface of the first pressure seat 42 can be pressed against the first pressure surface 1, and the buffer pads 422 on the opposite sides of the first pressure seat 42 are respectively pressed against the two third pressure surfaces 3, and the buffer pad 422 is squeezed by the third pressure surface 3. Among them, the buffer pad 422 is a wearing part and can be replaced as needed.

[0049] In order to improve the convenience of installing the first pressure seat 42, the opposite sides of one end of the first pressure seat 42 are chamfered. When the first pressure seat 42 is installed, the chamfered end of the first pressure seat 42 is moved into the composite busbar in a direction perpendicular to the distribution direction of the two relative protrusions 18 to guide the placement of the first pressure seat 42.

[0050] Furthermore, in other embodiments, in order to improve the flatness of the third pressure surface 3 when under pressure, a contact piece (not shown in the figure) can be installed on the side of the buffer pad 422 facing away from the main seat 421 by gluing. The surface of the contact piece is flat and made of hard material, and the first pressure seat 42 presses the third pressure surface 3 through the contact piece.

[0051] Reference Figure 3 and Figure 4 There are two second pressure seats 43, one for each composite busbar. Both second pressure seats 43 slide on the third support surface 17 along the distribution direction of the two second support surfaces 16. Each second pressure seat 43 is in the shape of an elongated strip extending perpendicular to the distribution direction of the two second support surfaces 16. The second pressure seat 43 faces the second pressure surface 2 of the corresponding composite busbar, and the side of the second pressure seat 43 facing the corresponding second pressure surface 2 is flat.

[0052] To guide the movement of the second press seat 43, a guide bar 7 extending parallel to the distribution direction of the two second support surfaces 16 is placed on the third support surface 17. The guide bar 7 is a rectangular strip, and the third support surface 17 has a placement groove for the lower portion of the guide bar 7 to fit into. The bottom surface of the second press seat 43 is provided with a guide groove 19 that encloses the upper portion of the guide bar 7. When the second press seat 43 moves, it slides on the guide bar 7 through the guide groove 19, thereby limiting the movement of the second press seat 43 along the width direction of the guide bar 7 and guiding the movement of the second press seat 43. It should be noted that some terminals of the composite busbar extend onto the third support surface 17. Therefore, after the composite busbar is placed on the support seat 41, the second press seat 43 must be placed on the third support surface 17 to cooperate with the guide bar 7. When the composite busbar needs to be removed from the support seat 41, the second press seat 43 can be removed from the support seat 41 by lifting it upward.

[0053] In order to adapt to the shape and position of the injection molded parts and terminals on the composite busbar, each component in the upper mold 5 and the lower mold 4 is formed with a corresponding cavity and a protrusion that is inserted into the composite busbar.

[0054] Reference Figure 3 and Figure 5 As for the upper mold 5, the upper mold 5 includes a base 51, a pressure seat 52 and a push seat 53. Specifically, the base 51 is a plate-shaped structure and is opposite to the support seat 41. The pressure seat 52 is fixedly installed on the side of the base 51 facing the support seat 41 by bolts. The pressure seat 52 corresponds to the first pressure seat 42 one by one, and the pressure seat 52 is T-shaped. The push seat 53 is fixedly installed on the base 51 by bolts and has two groups. The two groups of push seats 53 correspond to the two second pressure seats 43 respectively, and the two groups of push seats 53 are distributed along the distribution direction parallel to the two second support surfaces 16. There are multiple push seats 53 in each group of push seats 53 and they are evenly spaced along the length direction of the second pressure seat 43.

[0055] In this embodiment, both the second pressure seat 43 and the pushing seat 53 have an inclined portion 6, which is an inclined bevel. The inclined portion 6 of the second pressure seat 43 is located at the top of the second pressure seat 43 and away from the second pressure-bearing surface 2, while the inclined portion 6 of the pushing seat 53 is located at the bottom of the pushing seat 53 and close to the second pressure seat 43. The inclined portions 6 of the second pressure seat 43 and the pushing seat 53 have the same inclination angle. In other embodiments, either the second pressure seat 43 or the pushing seat 53 may have the inclined portion 6.

[0056] The process of cooperation between the upper mold 5 and the lower mold 4 is as follows: after the composite busbar is installed on the lower mold 4, the upper mold 5 moves downward toward the lower mold 4 in a direction perpendicular to the first support surface 15, and the push seat 53 abuts against the corresponding second pressure seat 43 through the inclined portion 6. As the upper mold 5 moves toward the lower mold 4, the second pressure seat 43 is pushed by the push seat 53 through the inclined portion 6 and moves toward the corresponding second pressure surface 2 until the second pressure seat 43 abuts against the corresponding second pressure surface 2. At this time, the abutting seat 52 abuts downward against the corresponding first pressure seat 42, causing the first pressure seat 42 to abut against the corresponding first pressure surface 1.

[0057] Reference Figure 3 and Figure 5 Furthermore, in order to improve the stability of the upper mold 5 and the lower mold 4 during relative movement and to provide guidance, a guiding structure is provided between the upper mold 5 and the lower mold 4.

[0058] In this embodiment, the guide structure comprises guide posts 8 and guide sleeves 9. Guide posts 8 are cylindrical and fixed to support base 41. A protrusion 18 extends upward from the top surface of each guide post 8. Guide sleeves 9 correspond one-to-one with each guide post 8. Guide sleeves 9 are cylindrical and fixedly embedded in base 51, with the inner diameter of each guide sleeve 9 matching the outer diameter of each guide post 8. As the upper mold 5 moves toward the lower mold 4, the guide sleeves 9 slide coaxially downward onto the corresponding guide posts 8, limiting horizontal relative movement between the upper and lower molds 5 and 4.

[0059] The implementation principle of a hot pressing mold in an embodiment of the present application is as follows: the support seat 41 of the lower mold 4 supports the composite busbar, the first pressure seat 42 abuts the first pressure surface 1 and the third pressure surface 3, the second pressure seat 43 slides on the support seat 41 and is opposite to the second pressure surface 2, the pressing seat 52 of the upper mold 5 is opposite to the first pressure seat 42, and the pushing seat 53 cooperates with the second pressure seat 43. When the upper mold 5 moves downward, the pushing seat 53 pushes the second pressure seat 43 to press against the second pressure surface 2 through the inclined portion 6, and the pressing seat 52 presses against the first pressure seat 42 at the same time to achieve multi-sided hot pressing.

[0060] Example 2:

[0061] The difference between the embodiment of the present application and the first embodiment lies in the difference in the guide structure.

[0062] Reference Figure 6 and Figure 7 In this embodiment, the guide structure includes a base rod 10, a guide group 12 and a plug sleeve 13.

[0063] Reference Figure 7 and Figure 8The base rod 10 is in the shape of a threaded rod, and the threads of the base rod 10 are not shown in the figure. A disc-shaped mounting portion 20 is coaxially fixed to the bottom of the base rod 10, and the outer diameter of the mounting portion 20 is larger than the outer diameter of the base rod 10. The support base 41 is coaxially provided with a thread groove 21 and a receiving groove 11 that are connected from bottom to top. The thread groove 21 runs through the bottom of the support base 41, and the receiving groove 11 extends to the protrusion 18 and runs through the top of the protrusion 18, and the inner diameter of the thread groove 21 is larger than the inner diameter of the receiving groove 11. The mounting portion 20 is coaxially threadedly connected to the thread groove 21, and the base rod 10 is located in the receiving groove 11. The inner diameter of the receiving groove 11 is larger than the outer diameter of the base rod 10. When the mounting portion 20 is installed in the receiving groove 11, the top of the base rod 10 extends upward from the top of the protrusion 18.

[0064] The guide groups 12 are mounted on the base rod 10 and are arranged in multiple groups at intervals along the axial direction of the base rod 10. Each guide group 12 includes a limiting rod 121, an abutment ring 122, and an elastic member 123. The limiting rod 121 is in the shape of a round rod, and the bottom end of the base rod 10 is hemispherical. There are multiple limiting rods 121 in each guide group 12, and the multiple limiting rods 121 are evenly spaced and mounted on the base rod 10 along the circumference of the base rod 10. Specifically, the top ends of the limiting rods 121 are hinged to the outer periphery of the base rod 10 via pins, and the hinge axes of the limiting rods 121 are perpendicular to the axis of the base rod 10. The hinge ends of the limiting rods 121 in the same group are located on the same horizontal plane. The abutment ring 122 is annular and is coaxially threadedly sleeved on the outer periphery of the base rod 10. The abutment ring 122 is located below the hinged end of the same group of limiting rods 121. At the same time, the abutment ring 122 is located between the side of the limiting rod 121 facing the base rod 10 and the base rod 10.

[0065] The elastic member 123 corresponds to each of the limiting rods 121. The elastic member 123 is connected between the corresponding limiting rod 121 and the base rod 10, imparting a tendency for the free end of the limiting rod 121 to move away from the base rod 10. The elastic member 123 is located between the hinged end of the limiting rod 121 and the abutment ring 122. In this embodiment, the elastic member 123 is a spring. In other embodiments, the elastic member 123 may alternatively be a shrapnel, torsion spring, or the like. It should be noted that when no external force is applied, the limiting rod 121 is driven by the elastic force of the elastic member 123, causing the bottom end of the limiting rod 121 to rotate upward until it abuts against the inner wall of the accommodating groove 11. At this point, the limiting rod 121 separates from the abutment ring 122 and extends downwardly, tilted, away from the base rod 10.

[0066] The plug sleeve 13 is cylindrical and corresponds to the limit rod 121 one by one. At the same time, the top of the plug sleeve 13 is fixed on the base 51, and the bottom of the plug sleeve 13 extends downward from the base 51. The outer diameter of the plug sleeve 13 is consistent with the inner diameter of the accommodating groove 11, and the outer diameter of the plug sleeve 13 is larger than the outer diameter of the base rod 10.

[0067] When the upper mold 5 moves toward the lower mold 4, the plug sleeve 13 first coaxially encloses the base rod 10 and then inserts into the accommodating groove 11. Subsequently, the plug sleeve 13 located in the accommodating groove 11 abuts against the outer wall of the limiting rod 121 and presses the limiting rod 121 toward the base rod 10. After the limiting rod 121 enters the inner cavity of the plug sleeve 13, the free end of the limiting rod 121 abuts against the inner wall of the plug groove. At the same time, the side of the limiting rod 121 facing the base rod 10 abuts against the outer wall of the abutting ring 122 of the same group, thereby limiting the radial movement of the plug sleeve 13 along the base rod 10 and limiting the position of the plug sleeve 13. When the upper mold 5 and the lower mold 4 are fully matched, the bottom end of the plug sleeve 13 is close to but does not touch the inner bottom wall of the accommodating groove 11.

[0068] When hot pressing and cooling are completed, the upper mold 5 moves upward away from the lower mold 4, and the upper mold 5 drives the plug sleeve 13 to gradually leave the support seat 41. The limiting rod 121 released by the plug sleeve 13 rotates outward under the action of the elastic member 123, so that the free end of the limiting rod 121 hits the support seat 41. The vibration of the support seat 41 caused by the impact can be transmitted to the fitting surface of the lower mold 4 and the composite busbar, so as to destroy the adsorption force between the composite busbar and the lower mold 4, promote stress release, thereby reducing the subsequent resistance of the composite busbar to detach from the lower mold 4, and improving the convenience of demolding the composite busbar.

[0069] In addition, the bottom end of the mounting portion 20 has a cross groove, and the mounting portion 20 is threaded downward to move away from the thread groove 21, so that the base rod 10 and the guide assembly 12 can be removed downward. Therefore, after the upper mold 5 and the lower mold 4 have been mated multiple times, and the inner wall of the plug sleeve 13 and the free end of the limiting rod 121 have worn, resulting in a decrease in the mating accuracy, the base rod 10 can be removed and the abutment ring 122 can be threaded to adjust the angle between the limiting rod 121 and the base rod 10 when the limiting rod 121 and the abutment ring 122 abut each other, so that the limiting rod 121 can abut the inner wall of the plug sleeve 13 when entering the plug sleeve 13. Example

[0070] The embodiment of the present application discloses a composite busbar for an on-vehicle controller, which is prepared using the hot pressing mold in the first or second embodiment.

[0071] 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 hot pressing die, suitable for a composite busbar, wherein the composite busbar has a first pressure surface (1) and a second pressure surface (2) with an angle greater than 0° between them, characterized in that: include: A lower die (4) and an upper die (5) that move relative to each other along a straight line; The lower die (4) includes a support seat (41), a first pressure seat (42) and a second pressure seat (43); the support seat (41) is used to support the composite busbar so that the relative movement direction of the upper die (5) and the lower die (4) is perpendicular to the first pressure surface (1); the first pressure seat (42) is used to be placed on and abut against the first pressure surface (1); the second pressure seat (43) slides on the support seat (41), and at the same time, the second pressure seat (43) is opposite to the second pressure surface (2), and the sliding direction of the second pressure seat (43) is perpendicular to the second pressure surface (2); The upper mold (5) includes a base (51), a pressing seat (52) and a pushing seat (53); the base (51) is opposite to the supporting seat (41); the pressing seat (52) is arranged on the base (51), and the pressing seat (52) is opposite to the first pressing seat (42); the pushing seat (53) is arranged on the base (51) for cooperating with the second pressing seat (43); Wherein, the second pressure seat (43) and the pushing seat (53) have an inclined portion (6), and when the upper mold (5) and the lower mold (4) move toward each other, the pushing seat (53) pushes the second pressure seat (43) through the inclined portion (6), so that the second pressure seat (43) moves toward the composite busbar; when the second pressure seat (43) moves to press against the second pressure-bearing surface (2), the pressing seat (52) simultaneously presses against the side of the first pressure seat (42) facing away from the first pressure-bearing surface (1); A guide structure is provided between the upper die (5) and the lower die (4) for guiding the relative movement of the upper die (5) and the lower die (4); The guide structure includes A base rod (10) is installed in the support seat (41) and extends along the relative movement direction of the upper mold (5) and the lower mold (4); the support seat (41) has an accommodating groove (11) for making way for the base rod (10); The guide groups (12) have a plurality of groups, and the plurality of guide groups (12) are spaced apart and distributed on the base rod (10) along the length direction of the base rod (10); each group of the guide groups (12) includes a limiting rod (121) and an abutment ring (122), wherein the limiting rod (121) is hinged to the outer periphery of the base rod (10) and a plurality of the limiting rods (121) are arranged along the circumference of the base rod (10), and the abutment ring (122) is threadedly sleeved on the base rod (10); and A plug sleeve (13) is provided on the base (51) and corresponds one-to-one with the base rod (10); When the upper mold (5) and the lower mold (4) approach each other, the plug sleeve (13) enters the accommodating groove (11) and simultaneously sleeves the base rod (10) and the guide group (12), so that the free end of the limiting rod (121) abuts against the inner wall of the plug sleeve (13), and the outer periphery of the abutting ring (122) abuts against the side of the limiting rod (121) toward the base rod (10).

2. A hot pressing mold according to claim 1, characterized in that: A plurality of the pushing seats (53) are arranged on the base (51) at intervals along a direction parallel to the length extension of the second pressing seat (43).

3. A hot pressing mold according to claim 1, characterized in that: The support seat (41) is provided with a guide bar (7) that cooperates with the second pressure seat (43), and the length extension direction of the guide bar (7) is perpendicular to the second pressure surface (2). The guide bar (7) limits the displacement of the second pressure seat (43) along the width direction of the guide bar (7) and allows the second pressure seat (43) to slide along the length direction of the guide bar (7).

4. A hot pressing mold according to claim 3, characterized in that: The composite busbar has a third pressure-bearing surface (3), the third pressure-bearing surface (3) is adjacent to the first pressure-bearing surface (1), and the angle between the third pressure-bearing surface (3) and the first pressure-bearing surface (1) is greater than 0°; the side of the first pressure seat (42) abuts against the third pressure-bearing surface (3).

5. A hot pressing mold according to claim 4, characterized in that: The first pressure seat (42) comprises a main seat (421) and a buffer pad (422); the buffer pad (422) is arranged on the side of the main seat (421) and has elasticity.

6. The hot pressing mold according to claim 1, characterized in that: The guide group (12) further includes an elastic member (123) connected between the base rod (10) and the limiting rod (121), wherein the elastic force of the elastic member (123) imparts a tendency for the free end of the limiting rod (121) to press against the inner wall of the support seat (41) at the receiving groove (11).

7. A composite busbar for an on-board controller, characterized by: It is prepared using the hot pressing mold according to any one of claims 1 to 6.

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