Injection mold for special-shaped connecting piece of power battery of electric vehicle

Abstract

The utility model discloses an injection mold for the special-shaped connecting piece of the power battery of electric automobile, the mold is cooperated through locating seat, locating table and clamping table, and the preliminary positioning is realized to locating pile and conductive component connecting hole, and the clamping strip is further clamped when the mold is closed, the pre -combination mechanism of left mould utilizes the inclined push rod and promotes the locking slider fixed left mould, and simultaneously, the demoulding structure that sets up the pivot, the demoulding support and the torsional spring of left mould, realizes efficient demoulding, this mold has improved injection molding finished product quality, has reduced the rate of defective products, has promoted production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to an injection mold for a non-circular connector for an electric vehicle power battery. Background Technology

[0002] The irregularly shaped connectors of power batteries are key components that ensure stable connection and efficient power transmission of various components inside the battery pack. The conductive components often have unique shapes to meet specific electrical connection and spatial layout requirements.

[0003] In existing injection molding processes, due to the irregular shape of conductive components, traditional injection molds often clamp and fix them during the mold closing process. During this process, displacement is prone to occur due to mechanical vibration, resulting in inconsistent quality of injection molded products and a high defect rate. At the same time, inaccurate positioning can also affect the assembly accuracy of conductive components with other parts, reducing the reliability and stability of the entire power battery system.

[0004] Therefore, developing an injection mold that fixes and positions conductive components before injection molding has become an urgent need to improve injection molding quality and efficiency. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose an injection mold for irregularly shaped connectors of electric vehicle power batteries, thereby solving the problems mentioned in the background art.

[0006] To achieve the above technical objectives, the present invention provides an injection mold for a non-circular connector of an electric vehicle power battery, comprising a positioning seat fixedly mounted on a bottom mold. A right mold and a left mold are slidably mounted on the bottom mold at both ends. A clamping platform and a positioning platform are respectively mounted on adjacent surfaces of the right and left molds. A conductive component is mounted on the positioning platform. The adjacent surfaces of the clamping platform and the positioning platform are always kept within the positioning seat. Both the right and left molds are provided with through-type inclined push rods. The upper ends of the two inclined push rods approach the positioning seat. The bottom mold is provided with inclined grooves that cooperate with the inclined push rods. The left mold is provided with a pre-closing mechanism. Before mold closing, the positioning platform is manually pushed to the mold closing position within the positioning seat. During mold closing, the two inclined push rods respectively drive the right mold to approach the positioning seat and drive the pre-closing mechanism to fix the left mold.

[0007] Furthermore, the pre-fitting mechanism includes a locking slider, the left mold is L-shaped, the positioning platform is located outside the vertical section of the left mold, the locking slider is slidably located on the horizontal section of the left mold, the horizontal section of the left mold is provided with an oblique strip hole, and the oblique push rod passes through the locking slider and the oblique strip hole.

[0008] Furthermore, the locking slider is a wedge-shaped block, and the inner side of the vertical section of the left mold is provided with an inclined surface that cooperates with the locking slider.

[0009] Furthermore, a rotating shaft is provided on the left mold on both sides of the inclined strip hole. The rotating shaft is located at the end of the inclined strip hole away from the vertical section of the left mold. A demolding support rod and a torsion spring are provided on the rotating shaft. One end of the demolding support rod is rotatably connected to the rotating shaft, and the other end is provided with an arc groove. One end of the torsion spring is connected to the left mold, and the other end is connected to the demolding support rod. The torsion spring drives the demolding support rod to move closer to the center of the inclined strip hole. After the arc grooves on the two demolding support rods are joined together, they cooperate with the inclined push rod.

[0010] Furthermore, the positioning platform is provided with a plurality of positioning stakes, the connecting hole of the conductive component is sleeved on the positioning stakes, and the clamping platform is provided with clamping strips that cooperate with the positioning stakes, the clamping strips keeping the conductive component on the positioning stakes.

[0011] Compared with the prior art, the beneficial effects of this utility model include: 1. This utility model sets up a positioning seat, a positioning platform, and a clamping platform. The positioning pin on the positioning platform cooperates with the connection hole of the conductive component to achieve initial positioning. When the mold is closed, the clamping bar of the right mold cooperates with the positioning pin to further clamp the conductive component. At the same time, the pre-closing mechanism of the left mold, under the action of the inclined push rod, uses the locking slider to cooperate with the inclined surface of the left mold to fix the left mold. This design effectively solves the problem of fixing the conductive component in the injection molding process, avoids the displacement caused by vibration, improves the quality of injection molded products, and reduces the defect rate.

[0012] 2. This utility model features rotating shafts on both sides of the inclined slot, with demolding support rods and torsion springs mounted on the shafts. Under the action of the torsion springs, the two demolding support rods move towards the center of the inclined slot, and after the arc-shaped grooves are assembled, they cooperate with the inclined push rods. When the mold is closed, the inclined push rods penetrate into the inclined grooves, push away the demolding support rods, and are then restricted in position by the reassembled support rods. During demolding, the inclined push rods are pulled out, causing the right mold and left mold to separate. This structure makes the demolding process smoother and more efficient, reduces the complexity and difficulty of manual operation, and improves production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the irregularly shaped connector of the electric vehicle power battery and its internal conductive components. Figure 2 This is a schematic diagram of an injection mold for an irregularly shaped connector for an electric vehicle power battery provided by this utility model; Figure 3 This is a cross-sectional schematic diagram of an injection mold for an irregularly shaped connector for an electric vehicle power battery provided by this utility model; Figure 4 This is a schematic diagram of the left mold of an injection mold for an irregularly shaped connector for an electric vehicle power battery provided by this utility model. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] Figure 1 This is a schematic diagram of an irregularly shaped connector. The conductive component consists of two bent copper busbars, which are fixed and insulated by injection molding. Because the copper busbars are bent and have several connectors welded on, it is difficult to fix them before injection molding. They are also prone to falling off and shifting due to vibration during the mold closing process, which affects the quality of the finished product.

[0016] Therefore, this utility model provides an injection mold for irregularly shaped connectors of electric vehicle power batteries, including a positioning seat 1, a right mold 2, a left mold 3, a clamping platform 4, a positioning platform 5, and two inclined push rods 7.

[0017] Reference Figure 2-4 (Since injection molds typically contain multiple identical mold components, for ease of understanding) Figure 1 , Figure 2 (Only one shown) Positioning seat 1 is fixedly set on bottom mold 9, and right mold 2 and left mold 3 are slidably set on the bottom mold 9 at both ends of positioning seat 1; clamping platform 4 and positioning platform 5 are respectively set on the adjacent side of right mold 2 and left mold 3, and the adjacent side of clamping platform 4 and positioning platform 5 is always kept within positioning seat 1. Before mold closing operation, the conductive component is placed on positioning platform 5. Positioning platform 5 is set with several positioning pins 501. The connecting hole of the conductive component is accurately fitted into the positioning pin 501 to achieve the initial positioning of the conductive component.

[0018] The left mold 3 has an L-shaped structure. The positioning platform 5 is located on the outside of the vertical section of the left mold 3. A locking slider 8 is slidably mounted on the horizontal section of the left mold 3. An oblique slot 301 is provided on the horizontal section of the left mold 3. One oblique push rod 7 passes through the locking slider 8 and the oblique slot 301, and the other passes through the right mold 2. The upper ends of the two oblique push rods 7 move towards the positioning seat 1. An oblique groove 901 that cooperates with the oblique push rod 7 is provided on the bottom mold 9. When the oblique push rod 7 moves into the oblique groove 901, it can drive the locking slider 8 and the right mold 2 to move towards the positioning seat 1. In this embodiment, the locking slider 8 is a wedge-shaped block. An oblique surface that cooperates with the locking wedge block 8 is provided on the inner side of the vertical section of the left mold 3.

[0019] Before mold closing, manually push the left mold 3 to the mold closing position in the positioning seat 1. At this time, the conductive component has been accurately placed on the positioning post 501 of the positioning table 5, and the lower end of the inclined push rod 7 is directly opposite the inclined groove 901. The locking slider 8 is in the initial position and has not yet locked the left mold 3.

[0020] During the mold closing operation, the upper mold descends to begin closing. Under the action of the mold closing force, the inclined push rod 7 moves into the inclined groove 901 on the bottom mold 9. During this process, it drives the right mold 2 to move closer to the positioning seat 1, and at the same time pushes the locking slider 8 to slide on the horizontal section of the left mold 3. Since the locking slider 8 is a wedge-shaped block and cooperates with the inclined surface on the inner side of the vertical section of the left mold 3, the left mold 3 is further fixed as the locking slider 8 slides, thus achieving the fixation of the left mold 3.

[0021] The clamping platform 4 is equipped with clamping bars 401 that cooperate with positioning pins 501. When the right mold 2 approaches the left mold 3, the clamping bars 401 will cooperate with the positioning pins 501 to tightly clamp the conductive components placed on the positioning pins 501, keeping the conductive components on the positioning pins 501. Since the left mold 3 is manually pushed into place in advance, it will not move during the mold closing process, thus avoiding displacement due to mechanical vibration during mold closing. This effectively improves the quality of the injection molded products and reduces the defect rate.

[0022] To facilitate demolding, a rotating shaft 801 is provided on the left mold 3 on both sides of the inclined slot 301. The rotating shaft 801 is located at the end of the inclined slot 301 away from the vertical section of the left mold 3. A demolding support rod 802 and a torsion spring 803 are provided on the rotating shaft 801. One end of the demolding support rod 802 is rotatably connected to the rotating shaft 801, and the other end is provided with an arc groove. One end of the torsion spring 803 is connected to the left mold 3, and the other end is connected to the demolding support rod 802. Under the action of the torsion spring 803, the demolding support rod 802 is driven to move closer to the center of the inclined slot 301. After the arc grooves on the two demolding support rods 802 are joined together, they cooperate with the inclined push rod 7.

[0023] Before mold closing, the inclined push rod 7 is located in the inclined strip hole 301 between the two demolding support rods 802. After mold closing begins, as the inclined push rod 7 penetrates deeper into the inclined groove 901, the inclined push rod 7 separates the two demolding support rods 802 to both sides. When the inclined push rod 7 passes the end of the demolding support rod 802, the two demolding support rods 802 reassemble under the action of the torsion spring 803, thereby restricting the inclined push rod 7 to the end of the inclined strip hole 301 adjacent to the vertical section of the left mold 3.

[0024] During demolding, the inclined push rod 7 is pulled out from the inclined groove 901. At this time, the inclined push rod 7 on the left mold 3 slides into contact with the arc groove on the two demolding support rods 802, thereby driving the right mold 2 and the left mold 3 to separate to both sides, so as to remove the injection-molded product from the mold.

[0025] Before closing the mold again, the two demolding support rods 802 need to be manually separated, and the inclined push rod 7 needs to be reset into the inclined strip hole 301 between the two demolding support rods 802.

[0026] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An injection mold for a special-shaped connecting piece of an electric vehicle power battery, comprising a positioning seat fixedly arranged on a bottom mold, right and left molds arranged on the bottom mold and capable of sliding at both ends of the positioning seat, characterized in that: A clamping platform and a positioning platform are respectively provided on the adjacent surfaces of the right mold and the left mold. A conductive component is provided on the positioning platform. The adjacent surfaces of the clamping platform and the positioning platform are always kept within the positioning seat. Both the right mold and the left mold are provided with through-through inclined push rods. The upper ends of the two inclined push rods move towards the positioning seat. The bottom mold is provided with inclined grooves that cooperate with the inclined push rods. The left mold is provided with a pre-closing mechanism. Before mold closing, the positioning platform is manually pushed to the mold closing position in the positioning seat. When the mold is closed, the two inclined push rods respectively drive the right mold to move towards the positioning seat and drive the pre-closing mechanism to fix the left mold.

2. The injection mold for the special-shaped connecting piece of the power battery of the electric vehicle according to claim 1, characterized in that: The pre-fitting mechanism includes a locking slider, the left mold is L-shaped, the positioning platform is located outside the vertical section of the left mold, the locking slider is slidably located on the horizontal section of the left mold, the horizontal section of the left mold is provided with an oblique strip hole, and the oblique push rod passes through the locking slider and the oblique strip hole.

3. The injection mold for the special-shaped connecting piece of the power battery of the electric vehicle according to claim 2, characterized in that: The locking slider is a wedge-shaped block, and the inner side of the vertical section of the left mold is provided with an inclined surface that cooperates with the locking slider.

4. The injection mold for the special-shaped connecting piece of the power battery of the electric vehicle according to claim 2 or 3, characterized in that: A rotating shaft is provided on the left mold on both sides of the inclined strip hole. The rotating shaft is located at the end of the inclined strip hole away from the vertical section of the left mold. A demolding support rod and a torsion spring are provided on the rotating shaft. One end of the demolding support rod is rotatably connected to the rotating shaft, and the other end is provided with an arc groove. One end of the torsion spring is connected to the left mold, and the other end is connected to the demolding support rod. The torsion spring drives the demolding support rod to move closer to the center of the inclined strip hole. After the arc grooves on the two demolding support rods are joined together, they cooperate with the inclined push rod.

5. The injection mold for the special-shaped connecting piece of the power battery of the electric vehicle according to claim 4, characterized in that: The positioning platform is provided with a plurality of positioning posts, the connecting hole of the conductive component is sleeved on the positioning posts, and the clamping platform is provided with clamping strips that cooperate with the positioning posts, the clamping strips keeping the conductive component on the positioning posts.

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