Vehicle-mounted controller composite busbar and hot pressing die thereof

Abstract

The invention relates to the technical field of composite busbars, and discloses a vehicle-mounted controller composite busbar and a hot-pressing die thereof, and the hot-pressing die comprises a lower die and an upper die which move relatively along a linear direction; the lower die comprises a supporting seat, a first pressing seat and a second pressing seat; the supporting seat is used for supporting the composite busbar, so that the relative movement direction of the upper die and the lower die is perpendicular to the first pressed surface; the first pressing base is used for being placed on and abutting against the first pressed face. The second pressing seat slides on the supporting seat and is opposite to the second pressed surface, and the sliding direction of the second pressing seat is perpendicular to the second pressed surface; the upper die comprises a base, an abutting 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 at the same time; the pushing base is arranged on the base and used for being matched with the second pressing base. According to the invention, the hot pressing effect of the hot pressing die on the composite busbar with multiple pressed surfaces can be improved.

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: 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; 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; 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; 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.

[0005] 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.

[0006] 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.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] Optionally, the guiding structure includes a guiding column and a guiding sleeve; the guiding column is arranged on the supporting seat, and the guiding sleeve is arranged on the base; when the upper die and the lower die approach each other, the guiding sleeve slidably sleevs the guiding column.

[0016] Optionally, the guiding structure includes a base rod, installed in the supporting seat and extending along the relative moving direction of the upper die and the lower die, and a receiving groove for making way for the base rod is provided in the supporting seat; a guiding group, having multiple groups, and the multiple groups of guiding groups are spaced along the length direction of the base rod on the base rod; each guiding group includes a limiting rod and an abutting ring, the limiting rod is hinged to the outer periphery of the base rod and a plurality of the limiting rods are arranged along the circumferential direction of the base rod, and the abutting ring is threadedly sleeved on the base rod; and a plugging sleeve, arranged on the base, corresponding to the base rod one by one; when the upper die and the lower die approach each other, the plugging sleeve enters the receiving groove and simultaneously sleeves the base rod and the guiding group, so that the free end of the limiting rod abuts against the inner wall of the plugging sleeve, and at the same time, the outer periphery of the abutting ring abuts against one side of the limiting rod facing the base rod.

[0017] By adopting the above technical solution, the position where the limiting rod abuts against the abutting ring when the limiting rod is pushed by the plugging sleeve can be adjusted by moving the abutting ring in a threaded manner, so that the limiting rod can better guide the plugging sleeve.

[0018] Optionally, the guiding group further includes an elastic member connected between the base rod and the limiting rod, and the elastic force of the elastic member gives a tendency for the free end of the limiting rod to tightly abut against the inner wall of the supporting seat at the receiving groove.

[0019] By adopting the above technical solution, when the upper and lower dies are demolded, the elastic member can push the free end of the limiting rod towards the inner wall of the receiving groove to strike the supporting seat, so as to assist in reducing the demolding resistance.

[0020] In a second aspect, the present application provides a vehicle-mounted controller composite busbar, adopting the following technical solution: A vehicle-mounted controller composite busbar is prepared by using the above-mentioned hot pressing die.

[0021] In summary, the present application includes at least one of the following beneficial effects: 1. The hot pressing die can simultaneously abut and hot press multiple pressure-receiving surfaces forming an angle between the composite busbars, improving the processing adaptability and the assembly effect of the composite busbar; 2. By setting up the guiding structure, the stability and accuracy of the relative movement between the upper die and the lower die are improved, the precision and reliability of the hot pressing process are enhanced, and thus the hot pressing quality of the composite busbar is improved. Description of the Drawings

[0022] Figure 1 is a schematic structural view of the composite busbar; Figure 2 is a schematic structural view of the first embodiment of the present application; Figure 3 is a schematic view of the exploded structure of the composite busbar, the first pressing seat and the second pressing seat relative to the supporting seat when they cooperate in the first embodiment of the present application; Figure 4 is a schematic view of the exploded structure of the composite busbar, the first pressing seat and the second pressing seat in the first embodiment of the present application; Figure 5 is a schematic structural view of the upper die in the first embodiment of the present application; Figure 6 is a schematic structural view of the second embodiment of the present application; Figure 7 is Figure 6 an enlarged structural view of part A in Figure 8 is Figure 6 a sectional view taken along line B-B in

[0023] Description of the Reference Numerals: 1, the first pressure-receiving surface; 2, the second pressure-receiving surface; 3, the third pressure-receiving surface; 4, the lower die; 41, the supporting seat; 42, the first pressing seat; 421, the main seat; 422, the buffer pad; 43, the second pressing seat; 5, the upper die; 51, the base; 52, the pressing seat; 53, the pushing seat; 6, the inclined part; 7, the guiding strip; 8, the guiding column; 9, the guiding sleeve; 10, the base rod; 11, the accommodating groove; 12, the guiding group; 121, the limiting rod; 122, the abutting ring; 123, the elastic member; 13, the inserting sleeve; 15, the first supporting surface; 16, the second supporting surface; 17, the third supporting surface; 18, the protruding part; 19, the guiding groove; 20, the mounting part; 21, the threaded groove. Detailed Embodiment

[0024] The following further elaborates on the present application in conjunction with the attached Figures 1-8 drawings.

[0025] Embodiment 1;

[0026] The first embodiment of the present application discloses a hot pressing die applicable to a composite busbar. Refer to Figure 1, the composite busbar has a first pressure-receiving surface 1, a second pressure-receiving surface 2, and a third pressure-receiving surface 3 that need to be hot-pressed. The first pressure-receiving surface 1 is adjacent to and perpendicular to the second pressure-receiving surface 2. The first pressure-receiving surface 1 and the second pressure-receiving surface 2 together form a stepped structure on the composite busbar. There are two third pressure-receiving surfaces 3, which are respectively adjacent to the opposite sides of the first pressure-receiving surface 1. The third pressure-receiving surface 3 is perpendicular to the first pressure-receiving surface 1, so that the third pressure-receiving surface 3 and the first pressure-receiving surface 1 together form a U-shaped structure on the composite busbar, and the third pressure-receiving surface 3 is also perpendicular to the second pressure-receiving surface 2 at the same time.

[0027] Referring to Figure 2 , the hot-pressing die includes an upper die 5 and a lower die 4. The lower die 4 is used to place the composite busbar and pre-position the composite busbar. The upper die 5 is used to apply pressure to the lower die 4 and conduct the pressure to the composite busbar. When the die is in use, the upper die 5 is assembled to the lower die 4 in a straight line direction. It should be noted that the hot-pressing die in this embodiment can assemble two composite busbar workpieces.

[0028] Referring to Figure 3 and Figure 4 , among them, for the lower die 4, the lower die 4 includes a support base 41, a first pressure seat 42, and a second pressure seat 43. Specifically, the support base 41 is used to place the composite busbar. The support base 41 has a first support surface 15, a second support surface 16, and a third support surface 17 that are adjacent in sequence. The first support surface 15 is used to support the side of the composite busbar facing away from the first pressure-receiving surface 1. The second support surface 16 is used to support the side of the composite busbar facing away from the second pressure-receiving surface 2. The third support surface 17 is lower than the first support surface 15. In order to adapt to the shape of the composite busbar, in this embodiment, the first support surface 15 and the third support surface 17 are parallel and both perpendicular to the second support surface 16. At the same time, both the first support surface 15 and the second support surface 16 have two groups to adapt to two groups of composite busbars. The two first support surfaces 15 are on the same horizontal plane. The two second support surfaces 16 are parallel to each other and opposite, and the third support surface 17 is connected between the two second support surfaces 16 to adapt to two groups of composite busbars at the same time.

[0029] The support base 41 also has a protruding portion 18 protruding upward on the first support surface 15. The protruding portion 18 is in the shape of a square block and can be integrally formed with the first support surface 15 or locked to the first support surface 15 by bolts. The number of protruding portions 18 on each first support surface 15 is two, and a space for limiting the composite busbar is formed between the two protruding portions 18. When the composite busbar is placed on the support base 41, the two sides of the composite busbar facing away from the two third pressure-receiving surfaces 3 respectively abut against the opposite sides of the two protruding portions 18.

[0030] The first pressing seat 42 corresponds to the composite busbar one by one. Each first pressing seat 42 includes a main seat 421 and a buffer pad 422. The main seat 421 is made of a hard material and is square-shaped. In this embodiment, the main seat 421 is made of a metal material. The buffer pads 422 are adhesively mounted on opposite sides of the main seat 421, and the buffer pads 422 are made of materials capable of elastic deformation, such as rubber, high-temperature resistant sponge, etc. After the composite busbar is placed on the support seat 41, the first pressing seat 42 is placed in the space enclosed by the first pressure-receiving surface 1 and the third pressure-receiving surface 3. The lower surface of the first pressing seat 42 can press against the first pressure-receiving surface 1, and the buffer pads 422 on opposite sides of the first pressing seat 42 respectively abut against the two third pressure-receiving surfaces 3, and the buffer pads 422 are squeezed by the third pressure-receiving surfaces 3. Among them, the buffer pads 422 are vulnerable parts and can be replaced as needed.

[0031] In order to improve the convenience of installing the first pressing seat 42, chamfers are provided on opposite sides of one end of the first pressing seat 42. When the first pressing seat 42 is installed, the end of the first pressing seat 42 with chamfers is moved into the composite busbar along the direction perpendicular to the distribution direction of the two opposite protruding parts 18 to guide the placement of the first pressing seat 42.

[0032] Furthermore, in other embodiments, in order to improve the flatness of the third pressure-receiving surface 3 when it is pressed, a contact piece (not shown in the figure) can be adhesively mounted on the side of the buffer pad 422 facing away from the main seat 421. The surface of the contact piece is flat and is made of a hard material. The first pressing seat 42 presses against the third pressure-receiving surface 3 through the contact piece.

[0033] Refer to Figure 3 and Figure 4 , there are two second pressing seats 43 corresponding to the composite busbar one by one, and both second pressing seats 43 slide on the third support surface 17 along the distribution direction of the two second support surfaces 16. Each second pressing seat 43 is in the shape of a long strip extending along the direction perpendicular to the distribution direction of the two second support surfaces 16. The second pressing seat 43 faces the second pressure-receiving surface 2 of the corresponding composite busbar, and the surface of the second pressing seat 43 facing the corresponding second pressure-receiving surface 2 is flat.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] The process of the upper die 5 cooperating with the lower die 4 is as follows. After the composite busbar is installed on the lower die 4, the upper die 5 moves downward close to the lower die 4 along the direction perpendicular to the first support surface 15, and the pushing seat 53 abuts against the corresponding second pressing seat 43 through the inclined portion 6. During the process of the upper die 5 moving close to the lower die 4, the second pressing seat 43 is pushed by the pushing seat 53 through the inclined portion 6 and moves toward the corresponding second pressure-receiving surface 2 until the second pressing seat 43 abuts tightly against the corresponding second pressure-receiving surface 2. At this time, the pressing seat 52 presses downward against the corresponding first pressing seat 42, causing the first pressing seat 42 to abut tightly against the corresponding first pressure-receiving surface 1.

[0039] Refer to Figure 3 and Figure 5 Furthermore, in order to improve the stability and guide the relative movement between the upper die 5 and the lower die 4, a guiding structure is provided between the upper die 5 and the lower die 4.

[0040] In this embodiment, the guiding structure includes a guiding column 8 and a guiding sleeve 9. The guiding column 8 is cylindrical and fixed on the support seat 41. At the same time, the top surface of the guiding column 8 extends upward beyond the upper surface of the protruding portion 18. The guiding sleeves 9 correspond to the guiding columns 8 one by one. The guiding sleeves 9 are cylindrical and fixedly embedded in the base 51, and the inner diameter of the guiding sleeves 9 is the same as the outer diameter of the guiding columns 8. When the upper die 5 moves toward the lower die 4, the guiding sleeves 9 slide downward coaxially and sleeved on the corresponding guiding columns 8 to limit the relative movement between the upper die 5 and the lower die 4 in the horizontal direction.

[0041] The implementation principle of a hot pressing die according to an embodiment of the present application is as follows: The support seat 41 of the lower die 4 supports the composite busbar. The first pressing seat 42 abuts against the first pressure-receiving surface 1 and the third pressure-receiving surface 3. The second pressing seat 43 slides on the support seat 41 and faces the second pressure-receiving surface 2. The pressing seat 52 of the upper die 5 faces the first pressing seat 42, and the pushing seat 53 cooperates with the second pressing seat 43. When the upper die 5 moves downward, the pushing seat 53 pushes the second pressing seat 43 through the inclined portion 6 to press against the second pressure-receiving surface 2, and the pressing seat 52 simultaneously presses the first pressing seat 42 to achieve multi-sided hot pressing.

[0042] Embodiment Two:

[0043] The difference between the embodiment of the present application and Embodiment One lies in the different guiding structures.

[0044] Refer to Figure 6 and Figure 7 In this embodiment, the guiding structure includes a base rod 10, a guiding group 12, and a plugging sleeve 13.

[0045] Refer to Figure 7 and Figure 8, the base rod 10 is in the shape of a threaded rod. The threads of the base rod 10 are not shown in the figure. A disc-shaped mounting portion 20 is coaxially fixed at 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 seat 41 is coaxially provided with a communicating threaded groove 21 and a receiving groove 11 from bottom to top in sequence. The threaded groove 21 penetrates the bottom end of the support seat 41, and the receiving groove 11 extends to the protruding portion 18 and penetrates the top end of the protruding portion 18, and the inner diameter of the threaded groove 21 is larger than the inner diameter of the receiving groove 11. The mounting portion 20 is coaxially threadedly connected in the threaded groove 21, and the base rod 10 is located in the receiving groove 11, and 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 mounted into the receiving groove 11, the top of the base rod 10 extends upward beyond the top end of the protruding portion 18.

[0046] The guiding groups 12 are mounted on the base rod 10 and are arranged at intervals along the axial direction of the base rod 10 in multiple groups. Each group of guiding groups 12 includes a limiting rod 121, an abutting 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. The number of limiting rods 121 in each group of guiding groups 12 is multiple, and the multiple limiting rods 121 are evenly spaced along the circumferential direction of the base rod 10 and mounted on the base rod 10. Specifically, the top end of the limiting rod 121 is hinged to the outer circumference of the base rod 10 through a pin shaft, and the hinge axis of the limiting rod 121 is perpendicular to the axis of the base rod 10. The hinged ends of the limiting rods 121 in the same group are located on the same horizontal plane. The abutting ring 122 is in the shape of a circular ring and is coaxially threadedly sleeved on the outer circumference of the base rod 10. The abutting ring 122 is located below the hinged ends of the limiting rods 121 in the same group, and at the same time, the abutting ring 122 is located between the side of the limiting rod 121 facing the base rod 10 and the base rod 10.

[0047] The elastic members 123 correspond to the limiting rods 121 one by one. The elastic members 123 are connected between the corresponding limiting rods 121 and the base rod 10, giving the free ends of the limiting rods 121 a tendency to move away from the base rod 10, and the elastic members 123 are located between the hinged ends of the limiting rods 121 and the abutting ring 122. In this embodiment, the elastic member 123 is a spring. In other embodiments, the elastic member 123 can also be a spring piece, a torsion spring, etc. It should be noted that when there is no other external force acting on the limiting rod 121, the limiting rod 121 is driven by the elastic force of the elastic member 123, so that the bottom end of the limiting rod 121 rotates upward to abut tightly against the inner wall of the receiving groove 11. At this time, the limiting rod 121 is separated from the abutting ring 122, and at this time, the limiting rod 121 extends obliquely away from the base rod 10 in the downward direction.

[0048] The plugging sleeve 13 is in the shape of a cylinder and corresponds to the limiting rod 121 one by one. At the same time, the top of the plugging sleeve 13 is fixed on the base 51, and the bottom of the plugging sleeve 13 extends downward from the base 51. The outer diameter of the plugging sleeve 13 is the same as the inner diameter of the receiving groove 11, and the outer diameter of the plugging sleeve 13 is larger than the outer diameter of the base rod 10.

[0049] 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.

[0050] 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.

[0051] 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

[0052] 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.

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

Claims

1. A hot pressing die applicable to a composite busbar, the composite busbar having a first pressure-receiving surface (1) and a second pressure-receiving surface (2) with an included angle greater than 0° therebetween, characterized in that, Comprising: A lower die (4) and an upper die (5) that move relative to each other in a linear direction; The lower die (4) includes a support base (41), a first pressing seat (42), and a second pressing seat (43); the support base (41) is used to support the composite busbar, such that the relative movement direction of the upper die (5) and the lower die (4) is perpendicular to the first pressure-receiving surface (1); the first pressing seat (42) is used to place and abut on the first pressure-receiving surface (1); the second pressing seat (43) slides on the support base (41), and at the same time, the second pressing seat (43) faces the second pressure-receiving surface (2), and the sliding direction of the second pressing seat (43) is perpendicular to the second pressure-receiving surface (2); The upper die (5) includes a base (51), a pressing seat (52), and a pushing seat (53); the base (51) faces the support base (41); the pressing seat (52) is arranged on the base (51) and is opposite to the..., and at the same time, the pressing seat (52) is opposite to the first pressing seat (42); the pushing seat (53) is arranged on the base (51) and is used to cooperate with the second pressing seat (43); Wherein, the second pressing seat (43) and / or the pushing seat (53) has an inclined portion (6), when the upper die (5) and the lower die (4) move towards each other, the pushing seat (53) pushes the second pressing seat (43) through the inclined portion (6), such that the second pressing seat (43) moves towards the direction close to the composite busbar; when the second pressing seat (43) moves to press against the second pressure-receiving surface (2), the pressing seat (52) simultaneously presses on the side of the first pressing seat (42) away from the first pressure-receiving surface (1).

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

3. A hot pressing die according to claim 1, characterized in that: A guiding bar (7) cooperating with the second pressing seat (43) is arranged on the support base (41), the length extension direction of the guiding bar (7) is perpendicular to the second pressure-receiving surface (2), the guiding bar (7) restricts the displacement of the second pressing seat (43) in the width direction of the guiding bar (7), and allows the second pressing seat (43) to slide in the length direction of the guiding bar (7).

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

5. A hot pressing die according to claim 4, characterized in that: The first pressing seat (42) includes 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. A hot pressing die according to claim 1, characterized in that: A guiding structure for guiding the relative movement of the upper die (5) and the lower die (4) is provided between the upper die (5) and the lower die (4).

7. A hot pressing die according to claim 6, characterized in that: The guiding structure includes a guiding column (8) and a guiding sleeve (9); the guiding column (8) is arranged on the supporting seat (41), and the guiding sleeve (9) is arranged on the base (51); when the upper die (5) approaches the lower die (4), the guiding sleeve (9) slidably sleeves the guiding column (8).

8. A hot pressing die according to claim 6, characterized in that: The guiding structure includes a base rod (10) installed in the supporting seat (41) and extending along the relative movement direction of the upper die (5) and the lower die (4), and a receiving groove (11) for making way for the base rod (10) is provided in the supporting seat (41); a guiding group (12), with multiple groups, and the multiple groups of the guiding groups (12) are spaced along the length direction of the base rod (10) on the base rod (10); each guiding group (12) includes a limiting rod (121) and an abutting ring (122), 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 circumferential direction of the base rod (10), and the abutting ring (122) is threadedly sleeved on the base rod (10); and a plugging sleeve (13) arranged on the base (51) and corresponding to the base rod (10) one by one; when the upper die (5) approaches the lower die (4), the plugging sleeve (13) enters the receiving groove (11) and simultaneously sleeves the base rod (10) and the guiding group (12), so that the free end of the limiting rod (121) abuts against the inner wall of the plugging sleeve (13), and at the same time, the outer periphery of the abutting ring (122) abuts against the side of the limiting rod (121) facing the base rod (10).

9. The hot pressing die according to claim 8, wherein: The guiding group (12) further includes an elastic member (123) connected between the base rod (10) and the limiting rod (121), and the elastic force of the elastic member (123) gives a tendency for the free end of the limiting rod (121) to tightly abut against the inner wall of the supporting seat (41) at the receiving groove (11).

10. A vehicle-mounted controller composite busbar, characterized in that: Prepared by using the hot pressing die according to any one of claims 1-9.

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