New energy battery pack insulation thermosetting film forming equipment and forming method thereof

Abstract

The invention relates to the technical field of new energy batteries, in particular to new energy battery pack insulation thermosetting film forming equipment and a forming method thereof.The new energy battery pack insulation thermosetting film forming equipment comprises a mold bottom plate, and a bottom layer insulation film, an aluminum bar, an injection molding integrated signal collecting piece and a top layer insulation film are installed at the upper end of the mold bottom plate through one side of an aluminum bar positioning pin; the aluminum bar positioning pin comprises a pin shell, a guide ball is installed at the upper end of the pin shell through an formed ball hole, a jacking assembly is installed at the lower end of the guide ball, and adaptive assemblies are annularly distributed on the periphery of the jacking assembly at equal intervals. The jacking assembly comprises a center column, the upper end of the center column is fixedly connected with a connecting piece, the upper end in the center column is fixedly connected with a reset spring, and the other end of the reset spring is fixedly connected with a piston plate. According to the aluminum bar assembling device, the aluminum bar can be accurately positioned, meanwhile, the aluminum bar can be further positioned through the adaptive assembly, in the aluminum bar assembling process, abrasion between the aluminum bar and an aluminum pin can be reduced, abrasion of the aluminum pin is reduced, and the service life of the aluminum pin is effectively prolonged.

Description

A thermosetting film molding device and molding method for insulating new energy battery packs Technical Field

[0001] This invention relates to a thermosetting film molding equipment and method for insulating new energy battery packs, and particularly to a thermosetting film molding equipment and method for insulating new energy battery packs, belonging to the field of new energy battery technology. Background Technology

[0002] The new energy battery pack insulation thermosetting film molding equipment is a special hot press unit that hot presses and cross-links "PET / PI film + epoxy flame retardant thermosetting adhesive" into 0.1-0.3 mm insulation sheets under conditions of 100-180 ℃ and ≥10 bar. It is also called CCS hot press film molding machine or battery insulation film encapsulation machine in the industry.

[0003] It can directly press the insulating film into a "bare sheet", or it can be pressed together with aluminum busbars and signal acquisition FPCs to form an "integrated busbar (CCS)" for insulation between cells, side plates or modules;

[0004] In the CCS thermosetting film forming machine, the positioning of the aluminum battery pack and the insulating film is mainly achieved by aluminum pins. During repeated use, when the aluminum pins wear down, wrinkles will appear at the connection between the insulating film and the aluminum pins, which will affect the product quality. In addition, the aluminum pins are relatively thin, and simply using alloy materials to improve the aluminum pins will not have a significant effect on extending their service life. Therefore, there is an urgent need to improve a thermosetting film forming equipment and its forming method for new energy battery pack insulation in order to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a thermosetting film molding equipment and method for insulating new energy battery packs, in order to solve the problem that in the CCS hot press film molding machine, the positioning of aluminum bars and insulating films is mainly achieved by aluminum pins. During repeated use, when the aluminum pins wear down, wrinkles will appear at the connection between the insulating film and the aluminum pins, which will affect the product quality. In addition, the aluminum pins are relatively thin, and simply using alloy materials to improve the aluminum pins does not have a significant effect on extending the service life of the aluminum pins.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A thermosetting insulating film molding device and its molding method for new energy battery packs include a mold base plate. A bottom insulating film, an aluminum bar, an integrated injection molding signal acquisition component, and a top insulating film are mounted on one side of the upper end of the mold base plate via an aluminum bar positioning pin. The aluminum bar positioning pin includes a pin housing. A guide ball is installed at the upper end of the pin housing through an opening in the ball hole. A pressing assembly is installed at the lower end of the guide ball. Adaptor components are distributed in a ring at equal intervals around the pressing assembly. The pressing assembly includes a central column. A connector is fixedly connected to the upper end of the central column. A return spring is fixedly connected to the upper end of the central column. A piston plate is fixedly connected to the other end of the return spring. A pressure equalizing component is installed at the bottom end of the piston plate. Pressing blocks for pressing the adapter components are installed in a ring at equal intervals on the outer side of the middle of the central column.

[0008] Preferably, the pin housing includes a housing, the housing having a central hole and a sliding groove inside, the sliding groove having four grooves, the sliding grooves being equidistantly distributed in a ring around the center of the central hole, and the sliding grooves communicating with the central hole.

[0009] Preferably, the top pressure block includes an inclined block, a slider is fixedly connected to the middle of one end of the inclined block, the slider is slidably connected inside the central column, and the end of the slider away from the inclined block is exposed in the hollow part inside the central column, and the other end of the inclined block is adapted to the adapter component.

[0010] The guide ball includes a sphere with an annular groove in the middle, and the vertical cross-section of the annular groove on one side is T-shaped.

[0011] Preferably, the connector includes a connecting block with a through hole inside. The bottom end of the through hole communicates with the hollowed-out part inside the central column. The connecting block is adapted to the annular groove and is slidably connected to the sphere through the annular groove.

[0012] Preferably, the pressure equalization assembly includes a pressure equalization plate, which has four circular holes inside. A sealing column shell is fixedly connected to the outer side of the upper end of each circular hole on the pressure equalization plate, and a guide rod is slidably connected inside the sealing column shell.

[0013] Preferably, the guide rod and the top pressure block are in one-to-one correspondence, the lower end of the guide rod is fixedly connected to the slider, and hydraulic oil is filled between the pressure equalizing plate and the piston plate.

[0014] Preferably, the adapter component includes an adapter block, with elastic sheets fixedly connected to both the upper and lower ends of the adapter block, and the adapter block is slidably connected to the housing via a sliding groove.

[0015] Preferably, the aluminum bar positioning pins are provided in multiple locations, and the aluminum bar positioning pin mounting adapter is located at the aluminum bar mounting location.

[0016] Preferably, it includes the following steps:

[0017] Step 1: Place the padding paper, the bottom insulating film after cutting, the aluminum bar, the injection molding integrated signal acquisition component, and the top insulating film in sequence at the upper end of the mold base plate using the aluminum bar positioning pin to complete the laying of the new energy battery pack insulating thermosetting film.

[0018] Step 2: Then place the pad paper and mold top plate on the upper part of the mold bottom plate in sequence. The mold top plate and mold bottom plate are matched with each other by the side main positioning pin and the main positioning hole.

[0019] During this process, the adapter hole of the aluminum bar positioning pin inside the mold top plate contacts the guide ball inside the aluminum bar positioning pin. As the guide ball is pressed down, it pushes the pin shell and the top pressing assembly to descend synchronously, causing the adapter block to be pushed out from inside the shell and further lock the aluminum bar with the through hole inside the aluminum bar for the aluminum bar positioning pin to pass through.

[0020] Step 3: During the process of locking the aluminum bar with the positioning pin, the reset spring, piston plate and pressure equalization component inside the central column cooperate with each other to support and position the adapter block under the same pressure at different positions.

[0021] Step 4: After positioning, the assembled mold is hot-pressed. After hot pressing, the finished product is laser-welded, visually inspected, electrically tested, and finally inspected. Finally, it is packaged and put into storage to complete the production.

[0022] This invention has at least the following beneficial effects:

[0023] 1. In this invention, the aluminum bar positioning pin can be set to achieve precise positioning of the aluminum bar. At the same time, the aluminum bar can be further positioned by using the adapter component. During the assembly of the aluminum bar, the wear between the aluminum bar and the aluminum pin can be reduced, thus reducing the wear of the aluminum pin and effectively improving the service life of the aluminum pin.

[0024] 2. In this invention, the pressure equalization component can automatically and completely match the adapter component with the perforation inside the aluminum bar, which effectively improves the stability during the processing. At the same time, it does not affect the use even if the adapter component is slightly worn. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic diagram of the aluminum bar positioning pin structure of the present invention;

[0027] Figure 3 is a schematic diagram of the pin shell structure of the present invention;

[0028] Figure 4 is a schematic diagram of the guide ball structure of the present invention;

[0029] Figure 5 is a schematic diagram of the top pressure assembly structure of the present invention;

[0030] Figure 6 is a schematic diagram of the adapter component structure of the present invention;

[0031] Figure 7 is a schematic diagram of the installation position of the pressure equalization component of the present invention;

[0032] Figure 8 is a schematic diagram of the voltage equalization component of the present invention;

[0033] Figure 9 is a schematic diagram of the connector structure of the present invention.

[0034] In the diagram, 1. Mold base plate; 2. Insulating film; 3. Aluminum bar locating pin;

[0035] 31. Pin housing; 311. Housing; 312. Center hole; 313. Slide groove;

[0036] 32. Ball hole;

[0037] 33. Guide ball; 331. Sphere; 332. Annular groove;

[0038] 34. Top pressure assembly; 341. Central column;

[0039] 342, Top pressure block; 3421, Inclined block; 3422, Slider;

[0040] 343. Connector; 3431. Connecting block; 3432. Through hole;

[0041] 344. Return spring; 345. Piston plate;

[0042] 346. Pressure equalization assembly; 3461. Pressure equalization plate; 3462. Sealing column shell; 3463. Guide rod;

[0043] 35. Adapter component; 351. Adapter block; 352. Elastic sheet;

[0044] 4. Aluminum bar; 5. Injection-molded integrated signal acquisition component. Detailed Implementation

[0045] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0046] As shown in Figures 1-9, this embodiment provides a new energy battery pack insulation thermosetting film molding equipment and its molding method, including a mold base plate 1. The upper end of the mold base plate 1 is equipped with a bottom insulating film 2, an aluminum bar 4, an injection molding integrated signal acquisition component 5, and a top insulating film 2 through an aluminum bar positioning pin 3. The aluminum bar positioning pin 3 includes a pin shell 31. A guide ball 33 is installed on the upper end of the pin shell 31 through an opening ball hole 32. A top pressing component 34 is installed on the lower end of the guide ball 33. Adaptor components 35 are distributed in a ring at equal intervals around the top pressing component 34. The top pressing component 34 includes a central column 341. A connector 343 is fixedly connected to the upper end of the central column 341. A return spring 344 is fixedly connected to the upper end of the central column 341. A piston plate 345 is fixedly connected to the other end of the return spring 344. A pressure equalizing component 346 is installed on the bottom end of the piston plate 345. Top pressing blocks 342 for pressing the adapter components 35 are installed in a ring at equal intervals on the outer side of the middle of the central column 341.

[0047] The pin housing 31 can be used to position the guide ball 33, the top pressing component 34 and the adapter component 35, which can improve the stability of the aluminum bar 4 during the positioning process. Specifically, the pin housing 31 includes a housing 311, and the housing 311 has a central hole 312 and a sliding groove 313 inside. There are four sliding grooves 313, which are distributed in a ring at equal intervals around the center of the central hole 312. The sliding grooves 313 are connected to the central hole 312.

[0048] By using the top pressure block 342, which cooperates with the reset spring 344, piston plate 346 and pressure equalization component 346 inside the central column 341, the adapter component 35 can be supported under the same pressure to ensure that the pressure pushed out by the adapter component 35 is the same. Specifically, the top pressure block 342 includes an inclined block 3421, a slider 3422 is fixedly connected to the middle of one end of the inclined block 3421, the slider 3422 is slidably connected inside the central column 341, and the end of the slider 3422 away from the inclined block 3421 is exposed in the hollow part inside the central column 341. The other end of the inclined block 3421 is adapted to the adapter component 35.

[0049] The guide ball 33 facilitates the installation of the insulating film 2, aluminum bar 4, and injection-molded integrated signal acquisition component 5, providing a guiding effect. It also controls the internal structure of the aluminum bar positioning pin 3. Specifically, the guide ball 33 includes a ball 331 with an annular groove 332 in the middle. The vertical cross-section of the annular groove 332 on one side is T-shaped.

[0050] By using the connector 343, a stable connection with the guide ball 33 can be achieved. Specifically, the connector 343 includes a connector block 3431, and a through hole 3432 is provided inside the connector block 3431. The bottom end of the through hole 3432 is connected to the hollow part inside the center column 341. The connector block 3431 is adapted to the annular groove 332, and the connector block 3431 is slidably connected to the ball 331 through the annular groove 332.

[0051] The pressure equalization component 346 can distribute hydraulic oil at equal pressure. Specifically, the pressure equalization component 346 includes a pressure equalization plate 3461, which has four circular holes. A sealing column shell 3462 is fixedly connected to the outer side of the upper end of each circular hole in the pressure equalization plate 3461. A guide rod 3463 is slidably connected inside the sealing column shell 3462. The guide rod 3463 corresponds one-to-one with the top pressure block 342. The lower end of the guide rod 3463 is fixedly connected to the slider 3422. Hydraulic oil is filled between the pressure equalization plate 3461 and the piston plate 345.

[0052] The adapter component 35 includes an adapter block 351, with elastic sheets 352 fixedly connected to both the upper and lower ends of the adapter block 351. The adapter block 351 is slidably connected to the housing 311 through a sliding groove 313. This configuration can further improve the stability of the device during use.

[0053] Multiple aluminum bar positioning pins 3 are provided. The aluminum bar positioning pins 3 are installed at the aluminum bar 4 mounting position to install the adapter component 35. Through the above setting, the problem of damage to the insulating film 2 during the process of the adapter component 35 being pushed out can be effectively prevented.

[0054] As shown in Figures 1-9, the principle of the thermosetting film molding equipment and molding method for new energy battery pack insulation provided in this embodiment is as follows:

[0055] Includes the following steps:

[0056] Step 1: Place the padding paper, the bottom insulating film 2 after cutting, the aluminum bar 4, the injection molding integrated signal acquisition component 5, and the top insulating film 2 in sequence at the upper end of the mold base plate 1 through the aluminum bar positioning pin 3 to complete the laying of the new energy battery pack insulating thermosetting film.

[0057] Step 2: Then place the pad paper and mold top plate on the upper part of the mold bottom plate 1 in sequence, wherein the mold top plate and the mold bottom plate 1 are matched with each other by the side main positioning pin and the main positioning hole;

[0058] During this process, the adapter hole of the aluminum bar positioning pin 3 inside the mold top plate contacts the guide ball 33 inside the aluminum bar positioning pin 3. When the guide ball 33 is pressed down, it pushes the pin shell 31 and the top pressing component 34 to descend synchronously, so that the adapter block 351 is pushed out from the shell 311 and further locks the aluminum bar 4 with the through hole inside the aluminum bar 4 for the aluminum bar positioning pin 3 to pass through.

[0059] Step 3: During the process of locking the aluminum bar positioning pin 3 to the aluminum bar 4, the reset spring 344, piston plate 345 and pressure equalization component 346 inside the central column 341 cooperate with each other to support and position the adapter block 351 under the same pressure at different positions.

[0060] Step 4: After positioning, the assembled mold is hot-pressed. After hot pressing, the finished product is laser-welded, visually inspected, electrically tested, and finally inspected. Finally, it is packaged and put into storage to complete the production.

[0061] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0062] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0063] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A thermosetting film molding machine for insulating new energy battery packs, comprising a mold base plate (1), characterized in that: The mold base plate (1) is equipped with a bottom insulating film (2), an aluminum bar (4), an integrated injection molding signal acquisition component (5), and a top insulating film (2) on one side via an aluminum bar positioning pin (3); the aluminum bar positioning pin (3) includes a pin housing (31), a guide ball (33) is installed on the upper end of the pin housing (31) through an opening ball hole (32), and a top pressing component (34) is installed on the lower end of the guide ball (33); the top pressing component (34) is surrounded by adapter components (35) arranged in a ring at equal intervals; the top pressing component (34) is equipped with a bottom insulating film (2), an aluminum bar (4), an integrated injection molding signal acquisition component (5), and a top pressing component (35) is installed on the lower end of the mold base plate (1) via an aluminum bar positioning pin (3); the top pressing component (34) is equipped with a bottom insulating film (2), an aluminum bar (4), an integrated injection molding signal acquisition component (5), and a top pressing component (34) through an opening ball hole (32 ... The component (34) includes a central column (341), a connector (343) is fixedly connected to the upper end of the central column (341), a reset spring (344) is fixedly connected to the upper end inside the central column (341), a piston plate (345) is fixedly connected to the other end of the reset spring (344), a pressure equalization component (346) is installed at the bottom end of the piston plate (345), and a pressing block (342) for pressing the adapter component (35) is installed in a ring at equal intervals on the outer side of the middle of the central column (341).

2. The thermosetting film forming equipment for insulating new energy battery packs according to claim 1, characterized in that: The pin housing (31) includes a housing (311), and the housing (311) has a central hole (312) and a sliding groove (313) inside. There are four sliding grooves (313), which are distributed in a ring around the center of the central hole (312) at equal intervals. The sliding grooves (313) are connected to the central hole (312).

3. The thermosetting film forming equipment for insulating new energy battery packs according to claim 1, characterized in that: The top pressure block (342) includes a slope block (3421). A slider (3422) is fixedly connected to the middle of one end of the slope block (3421). The slider (3422) is slidably connected inside the central column (341), and the end of the slider (3422) away from the slope block (3421) is exposed in the hollow part inside the central column (341). The other end of the slope block (3421) is adapted to the adapter component (35).

4. The thermosetting film forming equipment for insulating new energy battery packs according to claim 1, characterized in that: The guide ball (33) includes a sphere (331), and an annular groove (332) is provided in the middle of the sphere (331). The vertical cross section of the annular groove (332) on one side is T-shaped.

5. The thermosetting film forming equipment for insulating new energy battery packs according to claim 1, characterized in that: The connector (343) includes a connecting block (3431), which has a through hole (3432) inside. The bottom end of the through hole (3432) is connected to the hollow inside the central column (341). The connecting block (3431) is adapted to the annular groove (332), and the connecting block (3431) is slidably connected to the sphere (331) through the annular groove (332).

6. The thermosetting film forming equipment for insulating new energy battery packs according to claim 1, characterized in that: The pressure equalization assembly (346) includes a pressure equalization plate (3461), which has four round holes inside. A sealing column shell (3462) is fixedly connected to the outer side of the upper end of each round hole of the pressure equalization plate (3461), and a guide rod (3463) is slidably connected inside the sealing column shell (3462).

7. The thermosetting film forming equipment for insulating new energy battery packs according to claim 6, characterized in that: The guide rod (3463) corresponds one-to-one with the top pressure block (342), the lower end of the guide rod (3463) is fixedly connected to the slider (3422), and hydraulic oil is filled between the pressure equalizing plate (3461) and the piston plate (345).

8. The thermosetting film forming equipment for insulating new energy battery packs according to claim 1, characterized in that: The adapter component (35) includes an adapter block (351), and elastic sheets (352) are fixedly connected to both the upper and lower ends of the adapter block (351). The adapter block (351) is slidably connected to the housing (311) through a sliding groove (313).

9. The thermosetting film molding equipment for insulating new energy battery packs according to claim 1, characterized in that: The aluminum bar positioning pin (3) is provided in multiple locations, and the aluminum bar positioning pin (3) is installed at the aluminum bar (4) mounting location.

10. A molding method for a thermosetting film molding apparatus for insulating new energy battery packs according to any one of claims 1-9, characterized in that: The steps include: Step 1: Place the pad paper, the bottom insulating film (2) after film cutting, the aluminum bar (4), the injection molding integrated signal acquisition component (5), and the top insulating film (2) in sequence on the upper end of the mold base plate (1) through the aluminum bar positioning pin (3) to complete the laying of the new energy battery pack insulating thermosetting film; Step 2: Then place the pad paper and the mold top plate in sequence on the upper end of the mold base plate (1), wherein the mold top plate and the mold base plate (1) are mutually adapted through the side main positioning pin and the main positioning hole; During this process, the matching hole of the aluminum bar positioning pin (3) set inside the mold top plate contacts the guide ball (33) set inside the aluminum bar positioning pin (3), and the guide ball (33) is pressed down during the contact process, pushing the pin shell (31) The top pressure component (34) descends synchronously, causing the adapter block (351) to be ejected from the inside of the housing (311) and further lock the aluminum bar (4) with the through hole inside the aluminum bar (4) for the aluminum bar positioning pin (3) to pass through; Step 3: During the process of the aluminum bar positioning pin (3) locking the aluminum bar (4), the reset spring (344), piston plate (345) and pressure equalization component (346) set inside the central column (341) cooperate with each other to achieve the same pressure and different positions to support and position the adapter block (351); Step 4: After positioning, the assembled mold is hot-pressed. After hot pressing, the finished product is laser-welded, visually inspected, electrically inspected, and finally packaged and stored to complete the production.

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