A new injection mold structure for an electric connection copper bar shell

Abstract

The application relates to a novel injection mold structure of an electric connection copper bar shell, and relates to the technical field of injection molds. The injection mold structure comprises a mold core, a cavity is formed in the mold core, an electric connection copper bar is placed in the cavity, a U-shaped buckle with an abutting convex part is installed on the copper bar so that the copper bar is suspended in the cavity; a side pushing sliding block is arranged on the mold core, a contact part of the side pushing sliding block can be extended into the cavity and abut against the buckle; the electric connection copper bar is in a bent strip shape, at least one side pushing sliding block is arranged on one side of the long side; the mold core is provided with a sliding block mounting groove; an end sliding block is arranged at a narrow end surface of the cavity; reset springs are arranged in the side pushing sliding block and the end sliding block, the reset springs are provided with pushing moving parts, and bottom guide grooves are matched with mold guide rails; a limiting snap ring is further arranged on the mold core to fix the electric connection copper bar. The application can accurately position the electric connection copper bar, and guarantees the injection molding quality and stability.

Description

Technical Field

[0001] This application relates to the field of injection mold technology, and in particular to a novel injection mold structure for an electrically connected copper busbar housing. Background Technology

[0002] In the fields of machinery manufacturing and electrical equipment, copper busbars for electrical connections are widely used as important conductive components. With the continuous development and upgrading of electrical systems, the performance and quality requirements for copper busbars for electrical connections are becoming increasingly stringent. High-quality copper busbars for electrical connections ensure the stability and safety of power transmission, playing a crucial role in various electronic devices, power systems, and industrial automation control. Their quality directly affects the operating efficiency and reliability of the entire system.

[0003] In traditional copper busbar production, insert injection molding is typically used to bond the busbar to other components. Generally, the copper busbar and injection mold are prepared first, then the busbar is placed in a specific position within the mold for injection molding. However, due to a lack of effective positioning and fixing methods, the position of the busbar is often roughly adjusted manually. In some cases, simple clamps are used for initial fixing, but these clamps are mostly simply designed and cannot adequately accommodate the complex structure of the busbar. Furthermore, there are no specific methods to ensure the uniformity of the injection molded layer during the injection molding process; production relies solely on experience and conventional injection parameter settings.

[0004] However, these existing technologies have significant drawbacks. Due to the influence of the copper busbar structure and the injection mold structure, the injection layer is unevenly formed within the mold cavity during actual production. This results in products failing to achieve their intended performance, and the defect rate is extremely high, severely impacting production efficiency and product quality. Utility Model Content

[0005] To overcome the above-mentioned technical problems, this application provides a novel injection mold structure for an electrical connection copper busbar housing.

[0006] This application provides a novel injection mold structure for an electrical connection copper busbar housing, employing the following technical solution:

[0007] A novel injection mold structure for an electrical connection copper busbar housing includes a mold core. The mold core has a cavity formed according to the shape of the electrical connection copper busbar housing. An electrical connection copper busbar for injection molding of the electrical connection copper busbar housing is placed in the cavity. Several U-shaped buckles are installed on the electrical connection copper busbar. The surface of the buckles has protrusions to form abutment protrusions. The buckles abut against the side of the cavity through the abutment protrusions, so that the electrical connection copper busbar is suspended in the cavity.

[0008] The mold core is provided with a side push slider. The moving direction of the side push slider is perpendicular to the cavity. The side push slider has a protrusion on the side near the cavity to form a contact part. The shape of the contact part is set according to the electrical connection copper busbar housing. The contact part can extend into the cavity and form an opposing abutment with the buckle protrusion on the side of the cavity.

[0009] By adopting the above technical solution, the electrical connection copper busbar is suspended in the cavity using a snap fastener, keeping a certain distance between the electrical connection copper busbar and the side wall of the cavity. After the side-pushing slider moves, it forms an opposing abutment with the abutting protrusion of the snap fastener, which can fix the electrical connection copper busbar in the cavity. At the same time, it corrects the angular deviation of the electrical connection copper busbar, ensuring that the wall thickness of the injection molded layer is uniform after molding.

[0010] Preferably, the electrical connection copper busbar is configured as a long strip shape that has been bent at least once, and at least one side push slider is provided on one side of each long side formed by the bend.

[0011] By adopting the above technical solution, when the electrical connection copper busbar is a long strip shape with at least one bend, at least one side push slider is set on one side of the long side formed by each bend. In cooperation with the buckle, the copper busbar can be better fixed in the cavity, further ensuring the effect of the side push slider in correcting the angle deviation of the copper busbar, and making the wall thickness of the injection layer more uniform after molding.

[0012] Preferably, the mold core has a slider mounting groove for mounting the side push slider, and the slider mounting groove is in communication with the cavity.

[0013] By adopting the above technical solution, the installation of the side-push slider can be realized by opening the slider mounting groove. The slider mounting groove is connected to the cavity, which allows the side-push slider to smoothly extend into the cavity. It cooperates with the abutting protrusion of the buckle to fix the electrical connection copper busbar in the cavity, ensuring that the wall thickness of the injection molded layer is uniform after molding, and correcting the angular deviation of the electrical connection copper busbar.

[0014] Preferably, each of the two opposite narrow end faces of the cavity is provided with an end slider, and the end slider is provided with an abutment plate protruding in the direction of the cavity. The abutment plate is used to abut against the electrical connection copper busbar placed in the cavity.

[0015] By adopting the above technical solution, end sliders are set at two narrow end faces opposite to each other in the mold cavity. The end sliders abut against the electrical connection copper busbar in the cavity through the abutment plate. Combined with the mold cavity opening to place the electrical connection copper busbar, the installation of U-shaped buckles on the electrical connection copper busbar to make the electrical connection copper busbar float in the cavity, and the contact part of the side push slider extending into the cavity to form an opposing abutment with the abutment protrusion of the buckle, the technical solution can better fix the electrical connection copper busbar in the cavity, further ensure that the injection molding layer has a uniform wall thickness, and also help to correct the angular deviation of the electrical connection copper busbar.

[0016] Preferably, a return spring is installed inside both the side push slider and the end slider. One end of the return spring abuts against the mold core, and the other end abuts against the bottom of the spring mounting hole of the side push slider or the end slider.

[0017] By adopting the above technical solution, a buckle is installed on the electrical connection copper busbar to suspend the electrical connection copper busbar in the cavity. The side push slider and the buckle form an opposing contact, which can fix the electrical connection copper busbar and correct the angle deviation to ensure uniform wall thickness of the injection molded layer. A return spring is installed in the side push slider and the end slider, which can automatically reset the side push slider and the end slider after injection molding, which facilitates subsequent operations.

[0018] Preferably, both the side push slider and the end slider are inclined with sloped surfaces to form a pushing part.

[0019] By adopting the above technical solution, during the injection molding of the electrical connection copper busbar housing, the side push slider and the end slider can move more smoothly in the predetermined direction, and together with other components, fix the electrical connection copper busbar in the cavity, correct the angular deviation of the electrical connection copper busbar, and ensure that the wall thickness of the injection molded layer is uniform after molding.

[0020] Preferably, a number of guide rails are fixedly provided on the side of the mold core, and the bottom of the side push slider and the end slider are provided with guide grooves that cooperate with the guide rails.

[0021] By adopting the above technical solution, the mold core side is fixed with a guide rail and the bottom of the side push slider and the end slider are opened with guide grooves to cooperate with it, so that the side push slider and the end slider have guiding properties during movement, improving the stability and accuracy of slider movement, better realizing the function of fixing and correcting the electrical connection copper busbar, and thus ensuring the uniformity of the injection molding layer wall thickness.

[0022] Preferably, the mold core is also equipped with a limiting ring, and one limiting ring is provided at each of the two narrow ends of the electrical connection copper busbar, and the electrical connection copper busbar is fixed inside the limiting ring.

[0023] By adopting the above technical solution, the electrical connection copper busbar is suspended in the cavity by the buckle. The contact part of the side push slider extends into the cavity and abuts against the abutting protrusion of the buckle, which can fix the electrical connection copper busbar and correct its angular deviation. In addition, the limit rings set at the two opposite narrow ends of the electrical connection copper busbar can further ensure the stable position of the electrical connection copper busbar in the cavity, thereby making the wall thickness of the injection layer more uniform after molding.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The buckle abuts against the side of the cavity, so that the copper busbar for electrical connection is suspended in the cavity. After the side push slider is activated, it abuts against the buckle abutting protrusion on the side of the cavity, fixing the copper busbar for electrical connection in the cavity and ensuring that the injection molding layer has a uniform wall thickness.

[0026] 2. The angle deviation caused by the structure of the electrical connection copper busbar itself can be eliminated by the contact of the side push slider;

[0027] 3. It solves the problem in the existing technology that the lack of effective positioning and fixing methods leads to uneven molding of the injection layer in the mold cavity, resulting in products that cannot achieve the expected performance and have a high defect rate, thereby improving production efficiency and product quality. Attached Figure Description

[0028] Figure 1 It is a three-dimensional view of the specific structure of the mold core;

[0029] Figure 2 It is a magnified view of a part of the cavity;

[0030] Figure 3 It is a magnified view of a portion of the slider mounting slot;

[0031] Figure 4 It is a three-dimensional view of the specific structure of the buckle;

[0032] Figure 5 This is a magnified view of a portion of the retaining ring structure;

[0033] Figure 6 This is a magnified view of a portion of the sliding section;

[0034] Figure 7 This is a cross-sectional view of the internal structure of the side-push slider;

[0035] Figure 8 This is a three-dimensional view of the specific structure of the side-push slider.

[0036] Explanation of reference numerals in the attached drawings: 11, mold core; 111, guide rail; 112, guide groove; 12, cavity; 13, injection tube; 14, slider mounting groove; 22, snap-fit; 23, abutting protrusion; 31, side push slider; 311, pushing part; 312, contact part; 313, return spring; 41, end slider; 411, abutting plate; 5, limiting retaining ring; 6, electrical connection copper busbar. Detailed Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] This application mainly uses a snap-fit ​​and side-push slider to fix the copper busbar during injection molding, which achieves the effect of ensuring uniform wall thickness of the injection molding layer and correcting the angle deviation of the copper busbar. The following is a further detailed description of this application.

[0039] This application provides a novel injection mold structure for an electrical connection copper busbar housing, referring to... Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes a mold core 11, a snap fastener 22, a side push slider 31, an end slider 41, a return spring 313, a guide rail 111, and a retaining ring 5. The cavity 12 on the mold core 11 accommodates the electrical connection copper busbar 6. The snap fastener 22 suspends the electrical connection copper busbar 6 within the cavity 12. The side push slider 31 abuts against the abutting protrusion 23 of the snap fastener 22, fixing the electrical connection copper busbar 6 and correcting angular deviations. The end slider 41 abuts against the electrical connection copper busbar 6. The return spring 313 resets the side push slider 31 and the end slider 41. The guide rail 111 provides guidance for the side push slider 31 and the end slider 41. The retaining ring 5 fixes the electrical connection copper busbar 6. This structure ensures uniform wall thickness of the injection molded layer after molding, improves product performance, and reduces the defect rate. This structure effectively fixes the position of the copper busbar and corrects angular deviations, allowing for uniform molding of the injection molded layer. The electrical connection copper busbar 6 is designed as a long strip shape that has undergone at least one bend. At least one side push slider 31 is provided on one side of each long side formed by the bend. This design provides better fixation for the copper busbar, accommodating its complex structure. For example, when the copper busbar bends twice, each long side of the bend has a side-push slider 31 that abuts against it, ensuring more stable fixation. The buckle 22 is U-shaped, with protrusions on its surface forming abutment protrusions 23. The buckle 22 has a certain degree of elasticity, facilitating installation and removal. The abutment protrusions 23 maintain a certain distance between the electrical connection copper busbar 6 and the side wall of the cavity 12. The buckle 22 abuts against the side of the cavity 12 through the abutment protrusions 23, thus suspending the electrical connection copper busbar 6 within the cavity 12.

[0040] Reference Figure 2 , Figure 6 , Figure 7 and Figure 8The mold core 11 has a cavity 12 formed according to the shape of the electrical connection copper busbar 6 housing. The shape of the cavity 12 is precisely designed according to the electrical connection copper busbar 6 housing to ensure that the injection-molded product meets the requirements. A side push slider 31 is provided on the mold core 11, and the movement direction of the side push slider 31 is perpendicular to the cavity 12. A protrusion forming a contact portion 312 is formed on the side of the side push slider 31 near the cavity 12. The shape of the contact portion 312 is set according to the electrical connection copper busbar 6 housing. The contact portion 312 can extend into the cavity 12 and form an opposing abutment with the abutment protrusion 23 of the buckle 22 on the side of the cavity 12. The side push slider 31 is generally made of steel, which has good wear resistance and strength. The shape of the contact portion 312 is adapted to the electrical connection copper busbar 6 housing, which can accurately abut the copper busbar. A slider mounting groove 14 for mounting the side push slider 31 is provided on the mold core 11, and the slider mounting groove 14 is connected to the cavity 12. The slider mounting groove 14 provides an accurate movement path for the side push slider 31, allowing it to accurately extend into the cavity 12. The inner wall of the slider mounting groove 14 is polished to reduce friction during the movement of the side push slider 31. An end slider 41 is provided at each of the two opposing narrow end faces of the cavity 12. Each end slider 41 has a protruding abutment plate 411 facing the cavity 12, which abuts against the electrical connection copper busbar 6 placed inside the cavity 12. Both the side push slider 31 and the end slider 41 are equipped with a return spring 313. One end of the return spring 313 abuts against the mold core 11, and the other end abuts against the bottom of the spring mounting hole of the side push slider 31 or the end slider 41. The return spring 313 allows the side push slider 31 and the end slider 41 to return to their initial positions after injection molding. Both the side push slider 31 and the end slider 41 have inclined surfaces forming a pushing portion 311. The pusher section 311 is designed to facilitate the movement of the side pusher slider 31 and the end slider 41 by an external drive device. The slope angle of the pusher section 311 is designed according to actual conditions to make the push smoother. During mold closing, the moving mold pushes the side pusher slider 31 and the end slider 41 toward the cavity 12 respectively, so that they reach the mold closing position. Several sets of guide rails 111 are fixedly provided on the side of the mold core 11, and the bottom of the side pusher slider 31 and the end slider 41 are provided with guide grooves 112 that cooperate with the guide rails 111. The cooperation of the guide rails 111 and the guide grooves 112 can provide accurate guidance for the movement of the side pusher slider 31 and the end slider 41.

[0041] Reference Figure 5 The mold core 11 is also equipped with a limiting retaining ring 5. One limiting retaining ring 5 is provided at each of the two narrow ends of the electrical connection copper busbar 6, and the electrical connection copper busbar 6 is fixed inside the limiting retaining ring 5. The limiting retaining ring 5 can prevent the copper busbar from shaking during the injection molding process.

[0042] The implementation principle of this embodiment is as follows: In this embodiment, the electrical connection copper busbar 6 is suspended in the cavity 12 by the buckle 22. The side push slider 31 cooperates with the buckle 22 to fix the copper busbar and correct the angle deviation. The end slider 41 abuts against the copper busbar to further stabilize its position. The return spring 313 resets the slider. The guide rail 111 guides the slider to move. The limiting ring 5 fixes the narrow end of the copper busbar. Compared with the prior art, in this application, when the housing of the electrical connection copper busbar 6 is injection molded, after the mold is closed and before injection molding, the moving mold pushes the side push slider 31 and the end slider 41 towards the cavity 12 respectively, so that the contact part 312 abuts against the grounding protrusion of the buckle 22, and the abutting plate 411 of the end slider 41 abuts against the two narrow ends of the electrical connection copper busbar 6, so that the electrical connection copper busbar 6 is stably fixed in the cavity 12, and the distance of each surface of the electrical connection copper busbar 6 towards the cavity 12 is the same, so that the wall thickness of the electrical connection copper busbar 6 housing after injection molding is uniform. The side-pushing slider 31 allows for more precise bending angles after the electrical connection copper busbar 6 housing is formed.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel injection mold structure for an electrically connected copper busbar housing, characterized in that, The device includes a mold core (11), on which a cavity (12) is formed according to the shape of the housing of the electrical connection copper busbar (6). An electrical connection copper busbar (6) for injection molding of the housing of the electrical connection copper busbar (6) is placed in the cavity (12). Several U-shaped buckles (22) are installed on the electrical connection copper busbar (6). The surface of the buckle (22) is provided with a protrusion to form an abutment protrusion (23). The buckle (22) abuts against the side of the cavity (12) through the abutment protrusion (23), so that the electrical connection copper busbar (6) is suspended in the cavity (12). The mold core (11) is provided with a side push slider (31), the movement direction of the side push slider (31) is perpendicular to the cavity (12), and the side push slider has a protrusion forming a contact part (312) on the side close to the cavity (12). The shape of the contact part (312) is set according to the housing of the electrical connection copper busbar (6). The contact part (312) can extend into the cavity (12) and form an opposing abutment with the abutting protrusion (23) of the buckle (22) on the side of the cavity (12).

2. The novel injection mold structure for an electrical connection copper busbar housing according to claim 1, characterized in that, The electrical connection copper busbar (6) is configured as a long strip shape that has been bent at least once, and the side push slider (31) is provided on at least one side of each long side formed by the bend.

3. The novel injection mold structure for an electrical connection copper busbar housing according to claim 1, characterized in that, The mold core (11) is provided with a slider mounting groove (14) for mounting the side push slider (31), and the slider mounting groove (14) is connected to the cavity (12).

4. The novel injection mold structure for an electrical connection copper busbar housing according to claim 1, characterized in that, An end slider (41) is provided at each of the two narrow end faces opposite to the cavity (12). The end slider (41) is provided with an abutment plate (411) protruding in the direction of the cavity (12). The abutment plate (411) is used to abut against the electrical connection copper busbar (6) placed in the cavity (12).

5. The novel injection mold structure for an electrical connection copper busbar housing according to claim 4, characterized in that, Both the side push slider (31) and the end slider (41) are equipped with a return spring (313). One end of the return spring (313) abuts against the mold core (11), and the other end abuts against the bottom of the spring mounting hole of the side push slider (31) or the end slider (41).

6. The novel injection mold structure for an electrical connection copper busbar housing according to claim 5, characterized in that, Both the side push slider (31) and the end slider (41) are inclined to form a pushing part (311).

7. The novel injection mold structure for an electrical connection copper busbar housing according to claim 5, characterized in that, The mold core (11) has several sets of guide rails (111) fixedly arranged on its side, and the bottom of the side push slider (31) and the end slider (41) are provided with guide grooves (112) that cooperate with the guide rails (111).

8. The novel injection mold structure for an electrical connection copper busbar housing according to claim 1, characterized in that, The mold core (11) is also equipped with a limiting ring (5), and one limiting ring (5) is provided at each of the two narrow ends opposite to the electrical connection copper busbar (6). The electrical connection copper busbar (6) is fixed inside the limiting ring (5).

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