Demolding structure for high-voltage contactor

Abstract

The utility model discloses a demolding structure for a high-voltage contactor. The demolding structure comprises a bottom plate; the mold is movably arranged on the lower side of the bottom plate, a mounting cavity is formed in the lower portion of the mold, and a communicating groove is formed in the upper portion of the mold; the mold core is mounted in the mounting cavity, an injection molding cavity is formed in the lower part of the mold core, and a matching groove is formed in the upper part of the mold core; the upper end of the base is connected with the bottom plate, the lower end of the base penetrates through the communicating groove and extends into the matching groove, at least two contact surfaces are formed on the lower portion of the base, and dovetail strips are arranged on the contact surfaces in the vertical direction in an extending mode; and one side of each sliding block is provided with a dovetail groove, the other side of each sliding block is provided with a part groove, and the part grooves communicate with the injection molding cavity. Through the application of the utility model, the injection molding demoulding structure suitable for the high-voltage contactor is provided, the high-voltage contactor with a plurality of chucks can be quickly demoulded at one time, and the product quality is ensured while the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding demoulding, in particular to a demoulding structure for a high-voltage contactor. Background Art

[0002] BDU, also known as the battery system distribution box, is widely used in various battery packs and battery systems with the further development of battery technology to achieve functions such as high-voltage charge and discharge control and circuit overload short-circuit protection. Existing BDUs often include a housing, as well as components such as relays, copper bars and contactors contained therein. For contactors, in order to ensure the stability of their installation and facilitate disassembly, snap-fits are often used at their connection ports. Generally, several snap-fits are arranged in sequence along the annular direction at a ring-shaped port position to achieve corresponding snap-fits with corresponding connection structures.

[0003] However, in the prior art, when producing the above-mentioned type of contactor, due to the limitation of its structural size, it is often difficult to realize injection molding of multiple clamps at one time by simple injection molding means, which also increases the production cost of the enterprise. Utility Model Content

[0004] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a demoulding structure for a high voltage contactor, comprising:

[0005] Base plate;

[0006] A mold, wherein the mold is movably arranged on the lower side of the bottom plate, a mounting cavity is formed at the lower part of the mold, and a connecting groove is provided at the upper part of the mold, and the connecting groove is connected with the mounting cavity;

[0007] A mold core, the mold core is installed in the installation cavity, an injection cavity is formed at the lower part of the mold core, a matching groove is formed at the upper part of the mold core, and the matching groove is connected to the injection cavity;

[0008] A base, the upper end of which is connected to the bottom plate, the lower end of which passes through the connecting groove and extends into the matching groove, at least two contact surfaces are formed at the lower part of the base, and a dovetail strip is provided on each of the contact surfaces extending in the vertical direction;

[0009] At least two sliders, each of which has a dovetail groove on one side, wherein the dovetail groove and the dovetail strip are slidably matched, and a part groove is provided on the other side of the slider, wherein the part groove is connected to the injection cavity.

[0010] In another preferred embodiment, the injection molding cavity is used to injection mold a high-voltage contactor part, the high-voltage contactor part has at least two extensions, each of the extensions is formed with a clamp, and the part slot matches the clamp.

[0011] In another preferred embodiment, the contact surface is arranged at an inclination, and the upper end of the contact surface is arranged to be inclined outward relative to the lower end of the contact surface.

[0012] In another preferred embodiment, the outer contour formed by the slider and the base matches the inner contour of the matching groove.

[0013] In another preferred embodiment, the upper end of the sliding block is disposed against the top surface of the mounting cavity.

[0014] In another preferred embodiment, it further comprises: a positioning column, the lower portion of which is mounted on the mold, and a positioning hole is formed on the bottom plate, and the positioning hole matches the positioning column.

[0015] In another preferred embodiment, the number of the dovetail bars is three, the dovetail bars are sequentially arranged along the circumferential direction of the base, and the number of the sliding blocks is three.

[0016] In another preferred embodiment, the three dovetail strips are evenly arranged around the base.

[0017] In another preferred embodiment, it further comprises: a mounting pin, wherein the mounting pin is mounted on the bottom plate from top to bottom, and the lower end of the mounting pin is connected to the base.

[0018] In another preferred embodiment, it further comprises: a movable mold, wherein the movable mold is arranged at the lower end of the mold core, and the upper surface of the movable mold and the injection cavity together form a closed space.

[0019] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: through the application of the utility model, an injection molding demoulding structure suitable for high-voltage contactors is provided, which can realize rapid demoulding of high-voltage contactors with multiple clamps at one time, thereby improving production efficiency and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded schematic diagram of a demoulding structure for a high-voltage contactor of the utility model;

[0021] Figure 2 It is a partial schematic diagram of a demoulding structure for a high-voltage contactor of the utility model;

[0022] Figure 3 It is a schematic diagram of dovetail matching of a demoulding structure for a high-voltage contactor of the utility model;

[0023] Figure 4 The utility model is a cross-sectional schematic diagram of a demoulding structure for a high-voltage contactor.

[0024] In the attached figure:

[0025] 1. Base plate; 2. Mold; 3. Installation cavity; 4. Connecting groove; 5. Mold core; 6. Injection cavity; 7. Matching groove; 8. Base; 9. Contact surface; 10. Dovetail strip; 11. Slider; 12. Parts groove; 13. Extension; 14. Chuck; 15. Positioning column; 16. Installation pin; 17. High-voltage contactor parts. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0027] like Figures 1 to 4 As shown, a demoulding structure for a high-voltage contactor of a preferred embodiment is shown, comprising: a bottom plate 1; a mold 2, the mold 2 is movably arranged on the lower side of the bottom plate 1, a mounting cavity 3 is formed at the lower part of the mold 2, a connecting groove 4 is provided at the upper part of the mold 2, and the connecting groove 4 is connected with the mounting cavity 3; a mold core 5, the mold core 5 is installed in the mounting cavity 3, an injection cavity 6 is formed at the lower part of the mold core 5, and a matching groove 7 is formed at the upper part of the mold core 5, and the matching groove 7 is connected with the injection cavity 6; a base 8, the upper end of the base 8 is connected to the bottom plate 1, the lower end of the base 8 passes through the connecting groove 4 and penetrates into the matching groove 7, at least two contact surfaces 9 are formed at the lower part of the base 8, and a dovetail strip 10 is provided on each contact surface 9 extending in the vertical direction; at least two sliders 11, a dovetail groove is provided on one side of each slider 11, the dovetail groove and the dovetail strip 10 are slidably matched, and a part groove 12 is provided on the other side of the slider 11, and the part groove 12 is connected with the injection cavity 6. Furthermore, when the high-voltage contactor part 17 is injection molded, the demoulding structure is first molded, that is, Figure 4 The corresponding state is then entered into the injection cavity 6 with the corresponding engineering material, and the demoulding action is started after the injection molding. The mold 2 and the mold core 5 move downward relative to the bottom plate 1 and the base 8 as a whole. As the base 8 is gradually pulled upward from the matching groove 7, under the sliding cooperation of the dovetail bar 10 and the dovetail groove, the slider 11 moves along the radial direction of the base 8 toward the central axis of the base 8 to stay away from the high-voltage contact parts, and makes the multiple part grooves 12 relatively separated from the multiple clamps 14 on the high-voltage contact parts, thereby completing the demoulding.

[0028] Further, as a preferred embodiment, the injection cavity 6 is used to injection-mold a high-voltage contactor part 17, and the high-voltage contactor part 17 has at least two extensions 13, each of which is formed with a clamp 14, and the part slot 12 matches the clamp 14. Further, the extension 13 is extended upward in the vertical direction, and the upper end of the extension 13 protrudes toward the position close to the central axis of the base 8 to form the above-mentioned clamp 14.

[0029] Further, as a preferred embodiment, the contact surface 9 is inclined, and the upper end of the contact surface 9 is inclined outward relative to the lower end of the contact surface 9. Further, the slider 11 moves along the inclined direction of the contact surface 9 relative to the base 8.

[0030] Further, as a preferred embodiment, the outer contour formed by the slider 11 and the base 8 matches the inner contour of the matching groove 7 .

[0031] Further, as a preferred embodiment, the upper end of the slider 11 is disposed against the top surface of the mounting cavity 3. Further, during the demoulding process, the upper end of the slider 11 is kept in contact with the top surface of the mounting cavity 3, that is, it is kept in contact with the mold 2, and the slider 11 moves only in the horizontal direction relative to the mold core 5.

[0032] Furthermore, as a preferred embodiment, the slider 11 has a vertical surface on a side away from the base 8, and the vertical surface is tightly arranged with the inner wall of the matching groove 7 on a side away from the base 8 in the mold closing state.

[0033] Furthermore, as a preferred embodiment, it further comprises: a positioning column 15, the lower part of which is mounted on the mold 2, and a positioning hole is provided on the bottom plate 1, and the positioning hole matches the positioning column 15. Furthermore, the matching of the positioning column 15 and the positioning hole ensures that the bottom plate 1 can match the mold 2 relatively accurately.

[0034] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention.

[0035] The utility model also has the following implementation methods based on the above:

[0036] In a further embodiment of the present invention, the number of the dovetail bars 10 is three, the dovetail bars 10 are sequentially arranged along the circumferential direction of the base 8, and the number of the sliders 11 is three.

[0037] In a further embodiment of the present invention, the dovetail bar 10 and the base 8 are arranged in an integrated structure.

[0038] In a further embodiment of the present invention, three dovetail strips 10 are evenly arranged around the base 8 .

[0039] In a further embodiment of the present invention, it further comprises: a mounting pin 16 , which is mounted on the bottom plate 1 from top to bottom, and the lower end of the mounting pin 16 is connected to the base 8 .

[0040] In a further embodiment of the utility model, it further comprises: a movable mold, which is arranged at the lower end of the mold core 5, and the upper surface of the movable mold and the injection cavity 6 form a closed space together. Further, the high-voltage contact part is formed in the above-mentioned closed space, and the outer contour of the high-voltage contact part matches the inner contour of the closed space.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A demoulding structure for a high voltage contactor, characterized in that: include: Base plate; A mold, wherein the mold is movably arranged on the lower side of the bottom plate, a mounting cavity is formed at the lower part of the mold, and a connecting groove is provided at the upper part of the mold, and the connecting groove is connected with the mounting cavity; A mold core, the mold core is installed in the installation cavity, an injection cavity is formed at the lower part of the mold core, a matching groove is formed at the upper part of the mold core, and the matching groove is connected to the injection cavity; A base, the upper end of which is connected to the bottom plate, the lower end of which passes through the connecting groove and extends into the matching groove, at least two contact surfaces are formed at the lower part of the base, and a dovetail strip is provided on each of the contact surfaces extending in the vertical direction; At least two sliders, each of which has a dovetail groove on one side, wherein the dovetail groove and the dovetail strip are slidably matched, and a part groove is provided on the other side of the slider, wherein the part groove is connected to the injection cavity.

2. The demoulding structure for a high voltage contactor according to claim 1, characterized in that: The injection molding cavity is used for injection molding a high-voltage contactor part. The high-voltage contactor part has at least two extension parts. A clamp is formed on each of the extension parts. The part groove matches the clamp.

3. The demoulding structure for a high voltage contactor according to claim 1, characterized in that: The contact surface is arranged in an inclined manner, and the upper end of the contact surface is arranged to be inclined outward relative to the lower end of the contact surface.

4. The demoulding structure for a high voltage contactor according to claim 1, characterized in that: The outer contour formed by the slider and the base matches the inner contour of the matching groove.

5. The demoulding structure for a high voltage contactor according to claim 1, characterized in that: The upper end of the sliding block is disposed against the top surface of the mounting cavity.

6. The demoulding structure for a high voltage contactor according to claim 1, characterized in that: Also includes: A positioning column, the lower part of which is installed on the mold, and a positioning hole is opened on the bottom plate, and the positioning hole matches the positioning column.

7. The demoulding structure for a high voltage contactor according to claim 1, characterized in that: The number of the dovetail bars is three, and the dovetail bars are arranged in sequence along the circumferential direction of the base. The number of the sliding blocks is three.

8. The demoulding structure for a high voltage contactor according to claim 7, characterized in that: The three dovetail strips are evenly arranged around the base.

9. The demoulding structure for a high voltage contactor according to claim 1, characterized in that: Also includes: The mounting pin is mounted on the bottom plate from top to bottom, and the lower end of the mounting pin is connected to the base.

10. The demoulding structure for a high voltage contactor according to claim 1, characterized in that: Also includes: The movable mold is arranged at the lower end of the mold core, and the upper surface of the movable mold and the injection cavity together form a closed space.

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