Motor wire holder die

Abstract

The utility model discloses a motor wire holder mould which comprises a male mould core and a female mould core, a female mould cavity is arranged on the face, opposite to the male mould core, of the female mould core, a male mould cavity is arranged on the face, opposite to the female mould core, of the male mould core, and a wire holder is formed between the male mould cavity and the female mould cavity in an injection molding mode. A copper bar positioning column used for positioning a copper bar, a nut positioning column used for positioning a nut and an insert positioning column used for positioning an insert are arranged in the male mold cavity, a plurality of insert pins are arranged on the female mold core, and the insert pins penetrate through the female mold core and extend into the female mold cavity. The insert pin can abut against the nut after the male mold core and the female mold core are closed and before injection molding, that is, the nut and the copper bar can be fixed, and poor injection molding caused by displacement of the copper bar and the nut is prevented. And the copper bar positioning column, the nut positioning column and the insert positioning column are arranged in the male mold cavity, so that the position consistency of the copper bar, the nut and the insert of the wire holder subjected to injection molding is good.

Description

Technical Field

[0001] This utility model relates to a motor terminal block mold, belonging to the field of injection mold technology. Background Technology

[0002] The motor terminal block is a structural component that is injection molded together with the copper busbar, nut, and insert. The copper busbar, nut, and insert are integrally injection molded into the motor terminal block, which has the advantages of being more secure and less prone to falling off.

[0003] However, during the injection molding process, the copper busbars and nuts are prone to displacement, making the injection-molded motor terminal blocks defective products with a high defect rate. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a motor terminal block mold that can hold the nut in place before injection molding to prevent the copper busbar and nut from shifting during the injection molding process.

[0005] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0006] A motor terminal block mold includes a male mold core and a female mold core. A female mold cavity is provided on the opposite surface of the female mold core and the male mold core. A male mold cavity is provided on the opposite surface of the male mold core and the female mold core. The terminal block is injection molded between the male mold cavity and the female mold cavity. The male mold cavity is provided with a copper busbar positioning post for positioning the copper busbar, a nut positioning post for positioning the nut, and an insert positioning post for positioning the insert. The female mold core is provided with a plurality of insert pins. The insert pins pass through the female mold core and extend into the female mold cavity. The insert pins are at least used to hold the nut in place before injection molding to prevent the nut from shifting.

[0007] Furthermore, a plurality of insert pins are provided on the female mold core corresponding to a nut positioning post, and the plurality of insert pins are located on the outside of the copper busbar positioning post and correspond to the position of the nut positioning post.

[0008] Furthermore, the male mold core is connected to an oil passage, which is connected to an oil pipe.

[0009] Furthermore, a male mold core plate is provided on the outer side of the male mold core, and the male mold core is fixedly connected to the male mold core plate; a female mold core plate is provided on the outer side of the female mold core, and the female mold core is fixedly connected to the female mold core plate; when the male mold core plate and the female mold core plate are closed, the male mold core and the female mold core are closed to form a closed cavity.

[0010] Furthermore, the male mold core plate is provided with a number of ejector pins, one end of which passes through the male mold core and the male mold core plate and extends into the male mold cavity.

[0011] Furthermore, the other end of the ejector pin is connected to an upper ejector plate, and the ejector pin moves with the upper ejector plate when the upper ejector plate moves away from the female mold core.

[0012] Furthermore, a lower ejector plate is provided on the side of the upper ejector plate away from the male mold core plate, and a connecting post is provided between the lower ejector plate and the male mold core plate, with the two ends of the connecting post connected to the male mold core plate and the lower ejector plate respectively.

[0013] Furthermore, a lower fixing plate is provided on the side of the lower ejector plate away from the upper ejector plate, and the lower fixing plate is connected to the male mold core plate via mold feet; an upper fixing plate is provided on the side of the female mold core plate away from the male mold core plate, and the upper fixing plate is fixedly connected to the female mold core plate.

[0014] Compared with the prior art, the advantages of this utility model include:

[0015] 1) The present invention provides a motor terminal block mold, wherein a number of insert pins are provided on the female mold core. The insert pins pass through the female mold core and extend into the female mold cavity. After the male mold core and the female mold core are closed, the insert pins can simultaneously abut against the nut before injection molding, that is, fix the nut and the copper busbar, and prevent the copper busbar and the nut from shifting and causing poor injection molding.

[0016] 2) The present invention provides a motor terminal block mold, wherein a copper busbar positioning post, a nut positioning post, and an insert positioning post are provided in the mold cavity. The copper busbar positioning post is used to position the copper busbar, the nut positioning post is used to position the nut, and the insert positioning post is used to position the insert, so that the position of the copper busbar, nut, and insert in the injection molded terminal block is consistent. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a motor terminal block mold provided in a typical embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram showing the position of the insert pin on the female mold core in a typical embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the male mold core provided in a typical embodiment of this utility model;

[0021] Figure 4This is a schematic diagram showing the positions of the copper busbar positioning post, the nut positioning post, and the insert pin provided in a typical embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the male mold core plate and the female mold core plate being closed in a typical embodiment of this utility model;

[0023] Explanation of reference numerals in the attached diagram: 1. Male mold core; 2. Female mold core; 3. Copper busbar positioning post; 4. Nut positioning post; 5. Insert positioning post; 6. Insert pin; 7. Oil pipe; 8. Male mold core plate; 9. Female mold core plate; 10. Ejector pin; 11. Upper ejector plate; 12. Lower ejector plate; 13. Lower fixing plate; 14. Upper fixing plate. Detailed Implementation

[0024] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0025] like Figures 2-5 As shown, this utility model discloses a motor terminal block mold, including a male mold core 1 and a female mold core 2. A male mold core plate 8 is provided on the outer side of the male mold core 1, and the male mold core 1 is fixedly connected to the male mold core plate 8. A female mold core plate 9 is provided on the outer side of the female mold core 2, and the female mold core 2 is fixedly connected to the female mold core plate 9. When the male mold core plate 8 and the female mold core plate 9 are closed, the male mold core 1 and the female mold core 2 are closed to form a closed cavity. A female mold cavity is provided on the opposite surfaces of the female mold core 2 and the male mold core 1, and a male mold cavity is provided on the opposite surfaces of the male mold core 1 and the female mold core 2. The terminal block is injection molded between the male mold cavity and the female mold cavity. The male mold cavity contains a copper busbar positioning post 3 for positioning the copper busbar, a nut positioning post 4 for positioning the nut, and an insert positioning post 5 for positioning the insert. The copper busbar positioning post 3 positions the copper busbar, the nut positioning post 4 positions the nut, and the insert positioning post 5 positions the insert. Since the center of the copper busbar hole coincides with the center of the nut, the copper busbar positioning post 3 is placed on the nut positioning post 4. The female mold core 2 has several insert pins 6, which extend through the female mold core 2 into the female mold cavity. The insert pins 6 are used to at least hold the nut before injection molding to prevent the nut from shifting. The insert pins 6 can hold the nut after the male mold core 1 and the female mold core 2 are closed and before injection molding, thus fixing the nut and the copper busbar and preventing displacement of the copper busbar and nut, which could cause injection defects. Specifically, for each nut positioning post 4, multiple insert pins 6 are provided on the female mold core 2. These insert pins 6 are positioned outside the copper busbar positioning post 3 and correspond to the positions of the nut positioning post 4. The insert pins 6 secure the nut and copper busbar, preventing them from shifting. One nut positioning post 4 corresponds to multiple insert pins 6. Preferably, the multiple insert pins 6 are arranged in a circumferential array at the nut. In this embodiment, each nut positioning post 4 corresponds to two insert pins 6.

[0026] In some embodiments, the male mold core 1 is connected to an oil passage, which is connected to an oil pipe 7. Cooling oil flows through the oil passage to cool and reduce the temperature of the male mold core 1.

[0027] In some embodiments, such as Figure 1 As shown, the male mold core plate 8 is provided with a plurality of ejector pins. One end of each ejector pin passes through the male mold core 1 and the male mold core plate 8 and extends into the male mold cavity. The other end of each ejector pin is connected to an upper ejector plate 11. When the upper ejector plate 11 moves away from the female mold core 2, the ejector pin moves with the upper ejector plate 11. After the terminal block is injection molded and after the male mold core 1 and the female mold core 2 separate, the ejector pins are used to eject the injection-molded terminal block, causing the injection-molded terminal block to detach from the mold. A lower ejector plate 12 is provided on the side of the upper ejector plate 11 away from the male mold core plate 8. A connecting post is provided between the lower ejector plate 12 and the male mold core plate 8. The two ends of the connecting post are connected to the male mold core plate 8 and the lower ejector plate 12, respectively. The lower ejector plate 12, through the connecting post, moves the male mold core plate 8 and the male mold core 1 closer to or away from the female mold core 2. A lower fixing plate 13 is provided on the side of the lower ejector plate 12 away from the upper ejector plate 11. The lower fixing plate 13 is connected to the male mold core plate 8 through mold feet. An upper fixing plate 14 is provided on the side of the female mold core plate 9 away from the male mold core plate 8. The upper fixing plate 14 is fixedly connected to the female mold core plate 9. The lower fixing plate 13 is used to fix the male mold core plate 8, and the upper fixing plate 14 is used to fix the female mold core plate 9.

[0028] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A motor terminal block mold, comprising a male mold core (1) and a female mold core (2), wherein a female mold cavity is provided on the opposite surface of the female mold core (2) and the male mold core (1), and a male mold cavity is provided on the opposite surface of the male mold core (1) and the female mold core (2), characterized in that: The terminal block is injection molded between the male mold cavity and the female mold cavity. The male mold cavity is provided with a copper busbar positioning post (3) for positioning the copper busbar, a nut positioning post (4) for positioning the nut, and an insert positioning post (5) for positioning the insert. The female mold core (2) is provided with a number of insert pins (6). The insert pins (6) pass through the female mold core (2) and extend into the female mold cavity. The insert pins (6) are used at least to hold the nut in place before injection molding to prevent the nut from shifting.

2. The motor terminal block mold according to claim 1, characterized in that: For each nut positioning post (4), multiple insert pins (6) are provided on the female mold core (2). The multiple insert pins (6) are located on the outside of the copper busbar positioning post (3) and correspond to the position of the nut positioning post (4).

3. The motor terminal block mold according to claim 1, characterized in that: The male mold core (1) is connected to an oil passage, which is connected to an oil pipe (7).

4. The motor terminal block mold according to claim 1, characterized in that: The male mold core (1) is provided with a male mold core plate (8) on its outer side, and the male mold core (1) is fixedly connected to the male mold core plate (8); the female mold core (2) is provided with a female mold core plate (9) on its outer side, and the female mold core (2) is fixedly connected to the female mold core plate (9); when the male mold core plate (8) and the female mold core plate (9) are closed, the male mold core (1) and the female mold core (2) are closed to form a closed cavity.

5. A motor terminal block mold according to claim 4, characterized in that: The male mold core plate (8) is provided with a number of ejector pins, one end of which passes through the male mold core (1) and the male mold core plate (8) and extends into the male mold cavity.

6. A motor terminal block mold according to claim 5, characterized in that: The other end of the ejector pin is connected to an upper ejector plate (11). When the upper ejector plate (11) moves away from the female mold core (2), the ejector pin moves with the upper ejector plate (11).

7. A motor terminal block mold according to claim 6, characterized in that: The upper ejector plate (11) is provided with a lower ejector plate (12) on the side away from the male mold core plate (8). A connecting post is provided between the lower ejector plate (12) and the male mold core plate (8). The two ends of the connecting post are respectively connected to the male mold core plate (8) and the lower ejector plate (12).

8. A motor terminal block mold according to claim 7, characterized in that: The lower ejector plate (12) is provided with a lower fixing plate (13) on the side away from the upper ejector plate (11), and the lower fixing plate (13) is connected to the male mold core plate (8) through mold feet; the female mold core plate (9) is provided with an upper fixing plate (14) on the side away from the male mold core plate (8), and the upper fixing plate (14) is fixedly connected to the female mold core plate (9).

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