An injection molding device for a positive and negative electrode connecting plate of a new energy vehicle
By introducing cooling components and ejector components into the injection molding unit, the problem of low cooling efficiency of injection molding plastics has been solved, enabling rapid cooling and automated production of positive and negative electrode connection plates for new energy vehicles, and improving injection molding efficiency and cooling effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HUAWO AUTO PARTS CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
Smart Images

Figure CN224527910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy vehicle technology, and in particular to an injection molding device for positive and negative electrode connecting plates for new energy vehicles. Background Technology
[0002] The positive and negative electrode connection plates of new energy vehicles are key conductive components in the power battery system. They are mainly used to connect cells in series or parallel, transmit current, and ensure the efficient operation of the battery pack. The injection molding device for the positive and negative electrode connection plates of new energy vehicles is an automated equipment specifically designed for the production of conductive connection plates in battery packs. Through insert injection molding, metal conductive components (copper / aluminum sheets) are combined with engineering plastics to form a composite connection plate that combines conductivity, insulation, and structural strength. The injection molding devices used for positive and negative electrode connecting plates in existing technologies for new energy vehicles have the following defects in actual use: Existing injection molding devices for positive and negative electrode connecting plates in new energy vehicles cannot achieve rapid cooling after the injection plastic is injected into the mold, resulting in slow cooling efficiency of the injection plastic and reducing the injection molding efficiency of the positive and negative electrode connecting plates for new energy vehicles. Utility Model Content
[0003] In view of the technical problem that existing injection molding devices for positive and negative electrode connecting plates for new energy vehicles cannot achieve rapid cooling after injecting the plastic into the mold, resulting in slow cooling efficiency of the plastic and reducing the injection molding efficiency of the positive and negative electrode connecting plates for new energy vehicles, this utility model provides an injection molding device for positive and negative electrode connecting plates for new energy vehicles.
[0004] The technical solution adopted by this utility model is: an injection molding device for positive and negative electrode connection plates of new energy vehicles, including an operating table and an upper mold. A lower mold is provided on the operating table. A cooling component is provided on one side of the operating table. The cooling component includes a water tank, a first cooling chamber, a second cooling chamber, a sealing groove, and a sealing ring. The water tank is fixedly installed on the outer wall of the operating table, and a semiconductor cooler is provided on the outer wall of the water tank. The first cooling chamber is located inside the lower mold, and the second cooling chamber is located inside the upper mold. Both the first and second cooling chambers are provided with flow-blocking plates. The sealing groove is located at the top of the lower mold, and the sealing ring is located at the bottom of the upper mold. The specifications of the sealing ring and the sealing groove are compatible. A pump body is provided on the outer wall of the top of the water tank, and an inlet pipe connected to the lower mold is provided on the output end of the pump body. A return pipe connected to the lower mold is provided on the outer wall of the top of the water tank. A flow-slowing plate is provided on the inner wall of the water tank. An inlet and outlet pipe is provided on the outer wall of the water tank, and a valve is provided on the inlet and outlet pipe.
[0005] Furthermore, the lower mold is equipped with an ejector assembly, which includes a mounting plate, a limiting rod, and a top plate.
[0006] Furthermore, the mounting plate is fixedly installed inside the lower mold, and a motor is installed on the outer wall of the top of the mounting plate, with a lead screw installed on the output shaft of the motor.
[0007] Furthermore, a lifting sleeve is threaded onto the outside of the lead screw, and the top end of the lifting sleeve is fixed to the outer wall of the bottom of the top plate, which is then placed inside the lower mold.
[0008] Furthermore, a limiting plate is provided on the outer wall of the lifting sleeve, and the limiting rod is fixedly installed on the outer wall of the top of the mounting plate, with the limiting plate slidably sleeved on the outside of the limiting rod.
[0009] Furthermore, a top seat is fixedly installed on the outer wall of the top of the operating table, and a hydraulic cylinder is fixedly installed on the outer wall of the top of the top seat. The upper mold is fixedly installed on the output end of the hydraulic cylinder.
[0010] Furthermore, the upper mold is provided with a feed pipe that penetrates through the upper mold.
[0011] The beneficial effects of this utility model are: This invention utilizes a cooling assembly with flow-retarding plates to slow down the flow rate of the medium, enabling the semiconductor cooler to fully cool the medium. The cold medium can sequentially enter the interior of cooling chamber one and cooling chamber two, rapidly cooling the injection-molded plastic and thus improving the injection molding efficiency of the positive and negative electrode connecting plates. The flow-restricting plates further slow down the flow rate of the cold medium, allowing it to fully exchange heat with the injection-molded positive and negative electrode connecting plates, making full use of the cold air from the cold medium, and resulting in better cooling of the positive and negative electrode connecting plates for new energy vehicles.
[0012] Secondly, this utility model uses an ejector assembly to drive the lifting sleeve to lift the top plate, which can automatically eject the cooled and formed positive and negative electrode connecting plates, eliminating the need for manual removal of the formed positive and negative electrode connecting plates from the lower mold, making it more convenient to use. Attached Figure Description
[0013] Figure 1 This is a three-dimensional view of the entire utility model; Figure 2 This is a perspective view of the lower mold and upper mold of this utility model; Figure 3 This is a three-dimensional view of the interior of the water tank of this utility model; Figure 4 This is a perspective view of the top material assembly of this utility model.
[0014] The components in the diagram are labeled as follows: 1. Control panel; 2. Cooling assembly; 201. Water tank; 202. Semiconductor cooler; 203. Cooling chamber one; 204. Cooling chamber two; 205. Baffle plate; 206. Sealing groove; 207. Sealing ring; 208. Inlet pipe; 209. Return pipe; 210. Pump body; 211. Inlet and outlet pipes; 212. Flow buffer; 3. Lower mold; 4. Upper mold; 5. Ejector assembly; 501. Mounting plate; 502. Motor; 503. Lead screw; 504. Lifting sleeve; 505. Top plate; 506. Limiting plate; 507. Limiting rod; 6. Hydraulic cylinder; 7. Feed pipe; 8. Top seat. Detailed Implementation
[0015] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0017] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described below.
[0018] In order to solve the problems existing in the background technology, this application proposes the following technical solution: an injection molding device for positive and negative electrode connecting plates for new energy vehicles.
[0019] The specific technical solution includes an operating platform 1 and an upper mold 4. A lower mold 3 is mounted on the operating platform 1. A cooling assembly 2 is mounted on one side of the operating platform 1. The cooling assembly 2 includes a water tank 201, a first cooling chamber 203, a second cooling chamber 204, a sealing groove 206, and a sealing ring 207. The water tank 201 is fixedly mounted on the outer wall of the operating platform 1, and a semiconductor cooler 202 is mounted on the outer wall of the water tank 201. The first cooling chamber 203 is located inside the lower mold 3, and the second cooling chamber 204 is located inside the upper mold 4. Both the first cooling chamber 203 and the second cooling chamber 204 are equipped with flow-blocking plates 205. The sealing groove 206 is located on the top of the lower mold 3 and provides a seal. A sealing ring 207 is set at the bottom of the upper mold 4, and the sealing ring 207 is compatible with the specifications of the sealing groove 206. A pump body 210 is set on the outer wall of the top of the water tank 201, and an inlet pipe 208 connected to the lower mold 3 is set on the output end of the pump body 210. A return pipe 209 connected to the lower mold 3 is set on the outer wall of the top of the water tank 201. A flow buffer 212 is set on the inner wall of the water tank 201. An inlet and outlet pipe 211 is set on the outer wall of the water tank 201, and a valve is set on the inlet and outlet pipe 211. This allows for rapid cooling of the injection plastic, so that the injection plastic wraps around the positive and negative electrode connecting plates, thereby improving the injection molding efficiency of the positive and negative electrode connecting plates for new energy vehicles.
[0020] In specific implementations, such as Figure 2 and Figure 4 The lower mold 3 shown has an ejector assembly 5 inside. The ejector assembly 5 includes a mounting plate 501, a limiting rod 507 and a top plate 505. The ejector assembly 5 is used to automatically eject the positive and negative electrode connecting plates of the formed new energy vehicle.
[0021] Furthermore, the mounting plate 501 is fixedly installed inside the lower mold 3, and a motor 502 is installed on the outer wall of the top of the mounting plate 501. A lead screw 503 is installed on the output shaft of the motor 502, and the motor 502 can drive the lead screw 503 to rotate.
[0022] Furthermore, a lifting sleeve 504 is threaded onto the outside of the lead screw 503, and the top of the lifting sleeve 504 is fixed to the outer wall of the bottom of the top plate 505. The top plate 505 is placed inside the lower mold 3. When the lifting sleeve 504 moves up and down, it will drive the top plate 505 to move up and down.
[0023] Furthermore, a limit plate 506 is provided on the outer wall of the lifting sleeve 504, and a limit rod 507 is fixedly installed on the outer wall of the top of the mounting plate 501. The limit plate 506 is slidably sleeved on the outside of the limit rod 507, and the limit rod 507 can guide the limit plate 506 and the lifting sleeve 504.
[0024] In specific implementations, such as Figure 1As shown, a top seat 8 is fixedly installed on the outer wall of the top of the operating table 1, and a hydraulic cylinder 6 is fixedly installed on the outer wall of the top of the top seat 8. The upper mold 4 is fixedly installed on the output end of the hydraulic cylinder 6, and the hydraulic cylinder 6 can drive the upper mold 4 to rise and fall.
[0025] In specific implementations, such as Figure 1 and Figure 2 As shown, the upper mold 4 is provided with a feed pipe 7, and the feed pipe 7 passes through the upper mold 4. The upper mold 4 is used to inject plastic into the space between the upper mold 4 and the lower mold 3.
[0026] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview: In use, the conductive sheet of the positive and negative electrode connection plate of the new energy vehicle is placed on the boss in the lower mold 3. The hydraulic cylinder 6 is activated to drive the upper mold 4 to descend, so that the sealing ring 207 is engaged in the sealing groove 206, which can ensure the sealing between the lower mold 3 and the upper mold 4. The injection plastic is introduced into the interior of the upper mold 4 and the lower mold 3 through the feed pipe 7. The injection plastic wraps the outer part of the middle position of the conductive sheet of the positive and negative electrode connection plate of the new energy vehicle. The semiconductor cooler 202 cools the medium inside the water tank 201. The pump body 210 draws the cold medium inside the water tank 201 into the first cooling chamber 203 through the inlet pipe 208, and then into the second cooling chamber 204. Finally, it flows back into the water tank 201 through the return pipe 209. This can cool the outer part of the conductive sheet of the positive and negative electrode connection plate of the new energy vehicle. The rapid cooling of the injection molding plastic improves the injection efficiency of the positive and negative electrode connection plates for new energy vehicles. The flow-blocking plate 205 slows down the flow rate of the cold medium, making full use of the cold air and improving the cooling effect on the positive and negative electrode connection plates of new energy vehicles. Furthermore, the cooling component 2 can recycle water. The flow-retarding plate 212 slows down the flow rate of the medium, allowing the semiconductor cooler 202 to fully cool the medium. The hydraulic cylinder 6 is activated to move the upper mold 4 upward, and the motor 502 is activated to rotate the lead screw 503. This allows the lifting sleeve 504 to synchronously drive the top plate 505 to rise axially on the lead screw 503. When the top plate 505 rises, it will push the cooled and formed positive and negative electrode connection plates of new energy vehicles out of the mold, eliminating the need for manual removal from the lower mold 3 and making it more convenient.
[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0028] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.
Claims
1. An injection molding device for positive and negative electrode connecting plates in new energy vehicles, characterized in that, The system includes an operating table (1) and an upper mold (4). A lower mold (3) is provided on the operating table (1). A cooling assembly (2) is provided on one side of the operating table (1). The cooling assembly (2) includes a water tank (201), a first cooling chamber (203), a second cooling chamber (204), a sealing groove (206), and a sealing ring (207). The water tank (201) is fixedly installed on the outer wall of the operating table (1), and a semiconductor cooler (202) is provided on the outer wall of the water tank (201). The first cooling chamber (203) is located inside the lower mold (3), and the second cooling chamber (204) is located inside the upper mold (4). Both the first cooling chamber (203) and the second cooling chamber (204) are equipped with flow-blocking devices. The sealing groove (206) is set on the top of the lower mold (3), and the sealing ring (207) is set on the bottom of the upper mold (4). The sealing ring (207) is compatible with the specifications of the sealing groove (206). A pump body (210) is set on the outer wall of the top of the water tank (201), and an inlet pipe (208) connected to the lower mold (3) is set on the output end of the pump body (210). A return pipe (209) connected to the lower mold (3) is set on the outer wall of the top of the water tank (201). A flow buffer plate (212) is set on the inner wall of the water tank (201). An inlet and outlet pipe (211) is set on the outer wall of the water tank (201), and a valve is set on the inlet and outlet pipe (211).
2. The injection molding device for positive and negative electrode connecting plates in new energy vehicles according to claim 1, characterized in that, The lower mold (3) is provided with an ejector assembly (5), which includes a mounting plate (501), a limiting rod (507), and a top plate (505).
3. The injection molding device for positive and negative electrode connecting plates in new energy vehicles according to claim 2, characterized in that, The mounting plate (501) is fixedly installed inside the lower mold (3), and a motor (502) is installed on the outer wall of the top of the mounting plate (501), and a lead screw (503) is installed on the output shaft of the motor (502).
4. The injection molding device for positive and negative electrode connecting plates in new energy vehicles according to claim 3, characterized in that, The lead screw (503) is threadedly connected to a lifting sleeve (504), and the top of the lifting sleeve (504) is fixed to the outer wall of the bottom of the top plate (505). The top plate (505) is placed inside the lower mold (3).
5. The injection molding device for positive and negative electrode connecting plates in new energy vehicles according to claim 4, characterized in that, A limiting plate (506) is provided on the outer wall of the lifting sleeve (504), and the limiting rod (507) is fixedly provided on the outer wall of the top of the mounting plate (501), and the limiting plate (506) is slidably sleeved on the outside of the limiting rod (507).
6. The injection molding device for positive and negative electrode connecting plates in new energy vehicles according to claim 1, characterized in that, A top seat (8) is fixedly installed on the outer wall of the top of the operating table (1), and a hydraulic cylinder (6) is fixedly installed on the outer wall of the top of the top seat (8). The upper mold (4) is fixedly installed on the output end of the hydraulic cylinder (6).
7. The injection molding device for positive and negative electrode connecting plates in new energy vehicles according to claim 1, characterized in that, The upper mold (4) is provided with a feed pipe (7), and the feed pipe (7) passes through the upper mold (4).