Busbar forming structure and injection molding busbar

Abstract

The utility model belongs to the technical field of injection molding busbars, and particularly relates to a busbar forming structure and an injection molding busbar, the busbar forming structure comprises a busbar forming positioning assembly, the busbar forming positioning assembly comprises an upper tightening plate, the bottom of the upper tightening plate is welded and connected with an upper connecting column, and the bottom end of the upper connecting column is fixedly connected with a middle positioning supporting rod; the bottom of the middle positioning supporting rod is fixedly connected with a positioning inserting column, the bottom end of the positioning inserting column is connected with a lower tightening plate in a welded mode, and the side of the middle positioning supporting rod is fixedly connected with a connecting supporting rod. According to the utility model, the metal bar is positioned from inside and outside, so that the possibility of deformation of the metal bar in the injection molding process can be reduced, the yield of the injection molding busbar can be improved, and the shunting ball is arranged at the injection molding opening, so that the stamping during injection molding can be buffered, and the production efficiency is improved. And the probability of deformation imperfection of the metal row can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection-molded busbars, in particular to a busbar molding structure and an injection-molded busbar. Background Art

[0002] Injection-molded busbars are made of conductive material, typically copper or aluminum, using injection molding. These bars are used in power supply systems to connect the main switch to the switches in each branch circuit. The surface of the injection-molded busbar is insulated and primarily serves as a conductor. During the manufacturing process, plastic is injected into the metal busbar through a specialized mold, forming a conductive component with a specific shape and structure. This technique not only protects the conductive material but also enhances its structural stability, preventing deformation or damage during use. Furthermore, the manufacturing process of injection-molded busbars may involve various other techniques, such as the design of positioning structures to prevent deformation of the metal plates from the injection pressure during the molding process, thereby improving product yield. These characteristics make injection-molded busbars widely used in various electrical systems requiring electrical conductivity and / or structural support.

[0003] In Chinese Patent No. 202121304088.8, the utility model discloses an injection busbar molding positioning structure and an injection busbar. The positioning structure includes an upper mold and a lower mold, with an injection cavity formed therebetween. The upper mold is provided with a plurality of upper positioning pins, and the lower mold is provided with a plurality of lower positioning pins corresponding to the upper positioning pins. Each upper positioning pin and its corresponding lower positioning pin constitute a positioning pin group. Multiple positioning pin groups with different positioning heights are formed in the injection cavity. The structure includes multiple layers of metal bars, each metal bar including a positioning portion, and the positioning pin group supports the positioning portion to position the metal bar at a fixed height. The metal bars are provided with avoidance holes with an aperture no smaller than the diameter of the positioning pin group. At the position corresponding to each positioning pin group, only one metal bar is provided with a positioning portion, and the remaining metal bars are provided with avoidance holes. This structure can effectively position the metal plate, preventing the metal plate from being deformed by the injection pressure during the injection molding process, thereby improving the product yield.

[0004] The existing busbar molding structure and injection molded busbar use a pin assembly to limit and fix the metal busbar. The pin pushes the metal busbar from the inside out to fix it, applying pressure to the metal busbar from the inside, but lacks the ability to limit and fix the metal busbar from the outside. During the injection molding process, if the injection molding pressure is insufficient, it is easy to cause the final product of the injection molded busbar to be incomplete. However, if the injection molding pressure is too high, the injection molded body inside the metal busbar can easily push the metal busbar outward from the inside, which can easily cause the metal busbar to bulge outward and deform.

[0005] Therefore, in order to solve the above problems, a busbar molding structure and an injection-molded busbar are proposed. Utility Model Content

[0006] In order to make up for the shortcomings of the existing technology, the problem of the existing busbar molding structure and injection-molded busbar lacking external limiting fixation of the metal busbar is solved. During the injection molding process, if the injection pressure is insufficient, it is easy to cause the final product of the injection-molded busbar to be incomplete. However, if the injection pressure is too high, the injection-molded body inside the metal busbar can easily push the metal busbar outward from the inside, which can easily cause the metal busbar to bulge outward and deform.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the busbar molding structure and injection molded busbar described in the present invention include a busbar molding positioning assembly, the busbar molding positioning assembly includes an upper tightening plate, the bottom of the upper tightening plate is welded with an upper connecting column, and the bottom end of the upper connecting column is fixedly connected to a middle positioning support rod, the bottom of the middle positioning support rod is fixedly connected with a positioning plug column, and the bottom end of the positioning plug column is welded with a lower tightening plate, the side of the middle positioning support rod is fixedly connected with a connecting support rod, and the end of the connecting support rod is fixedly connected with a diverter ball.

[0008] Preferably, the shape of the middle positioning support rod is set to be funnel-shaped, and the material of the middle positioning support rod is set to be plastic material.

[0009] Preferably, the diameter of the upper tightening plate is larger than the diameter of the upper connecting column, and the upper tightening plate and the lower tightening plate are symmetrically arranged with the horizontal central axis of the middle positioning support rod as the symmetry axis, and the diameter of the lower tightening plate is larger than the diameter of the positioning column.

[0010] Preferably, the diverter balls and the middle positioning support rod are staggered, and the vertical center axis of the diverter balls coincides with the vertical center axis of the upper injection molding hole and the vertical center axis of the lower injection molding hole.

[0011] Preferably, it comprises a busbar molding and positioning assembly and an injection-molded busbar assembly disposed outside the busbar molding and positioning assembly;

[0012] The injection-molded busbar assembly includes an upper metal bar, an upper injection-molded hole is opened inside the upper metal bar, and a lower metal bar is arranged at the bottom of the upper metal bar, a lower injection-molded hole is opened inside the lower metal bar, and a lower positioning hole is arranged on the side of the lower injection-molded hole, and the outside of the lower injection-molded hole is wrapped with an insulating injection-molded body.

[0013] Preferably, the upper metal bar and the lower metal bar are arranged in parallel, and the materials of the upper metal bar and the lower metal bar are both set to metal copper material, and the lower metal bar forms a locking structure with the positioning pins through the lower positioning hole.

[0014] Preferably, the insulating injection-molded body is made of plastic material.

[0015] The utility model is beneficial in that:

[0016] 1. The utility model is provided with a busbar molding positioning assembly, and the funnel-shaped middle positioning support rods are arranged at equal intervals in the middle position of the upper and lower metal bars, which can support and position the metal bar from the inside, so as to prevent the metal bar from being compressed externally and sinking internally to cause deformation during the injection molding process. In addition, an upper tightening plate and a lower tightening plate are provided at the upper and lower ends of the middle positioning support rod, and the upper tightening plate and the lower tightening plate are arranged on the outer wall of the metal bar, so as to provide a tightening force to the metal bar from the outside during the injection molding process, thereby positioning and protecting the metal bar, so as to prevent the metal bar from being compressed internally and bulging outward to cause deformation. The internal and external parts cooperate with each other, reducing the possibility of deformation of the metal bar during the injection molding process, thereby improving the quality of the injection-molded busbar product.

[0017] 2. The material of the middle positioning support rod in the present invention is set to plastic material. While positioning the metal bars inside the two metal bars, it does not affect the insulation effect of the middle position. The shape of the middle positioning support rod is set to be funnel-shaped, and the middle position is thinner. During injection molding, it is convenient to reduce the obstruction of the positioning column set in the middle position of the metal bar to the flowing injection molded body, and thus facilitate the injection molded body to fill the middle position of the metal bar well, which is convenient for reducing the defective rate caused by uneven flow of the injection molded body. In addition, a diverter ball is provided at the position of the injection port. When the liquid injection molded body is injected, it will first contact the diverter ball. The spherical diverter ball can provide a buffer and diversion effect on the liquid injection molded body, which is convenient for preventing the injection molded body from directly rushing towards the metal bar and causing deformation of the metal bar due to excessive stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall internal three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the busbar forming and positioning component of the utility model;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of the internal part of the utility model;

[0023] Figure 5 This is a schematic cross-sectional structure diagram of a partially insulated injection molded body of an injection molded busbar assembly of the present invention.

[0024] In the figure: 1. Busbar molding positioning assembly; 2. Injection molding busbar assembly; 101. Upper tightening plate; 102. Upper connecting column; 103. Middle positioning support rod; 104. Positioning plug column; 105. Lower tightening plate; 106. Connecting support rod; 107. Diverter ball; 201. Upper metal busbar; 202. Upper injection molding hole; 203. Lower metal busbar; 204. Lower injection molding hole; 205. Lower positioning socket; 206. Insulation injection molding body. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figure 3 As shown, a busbar molding structure includes a busbar molding positioning component 1, which is used for positioning during the injection molding process. The busbar molding positioning component 1 includes an upper tightening plate 101, the bottom of the upper tightening plate 101 is welded with an upper connecting column 102, and the bottom end of the upper connecting column 102 is fixedly connected to a middle positioning support rod 103, the bottom of the middle positioning support rod 103 is fixedly connected with a positioning plug column 104, and the bottom end of the positioning plug column 104 is welded with a lower tightening plate 105, the side of the middle positioning support rod 103 is fixedly connected with a connecting support rod 106, and the end of the connecting support rod 106 is fixedly connected with a diverter ball 107. The utility model positions the metal busbar from both the inside and the outside, so as to reduce the possibility of deformation of the metal busbar during the injection molding process, thereby facilitating the improvement of the yield of the injection molded busbar, and a diverter ball is provided at the position of the injection molding port, so as to buffer the stamping during injection molding, and also to reduce the probability of deformation and defectiveness of the metal busbar.

[0028] like Figure 3As shown, a busbar molding structure is shown, the shape of the middle positioning support rod 103 is set to be funnel-shaped, and the material of the middle positioning support rod 103 is set to be plastic material. The material of the middle positioning support rod 103 is set to be plastic material. While positioning the metal bar inside the two metal bars, it does not affect the insulation effect of the middle position. The shape of the middle positioning support rod 103 is set to be funnel-shaped, and the middle position is thinner. During injection molding, it is convenient to reduce the obstruction of the positioning column set in the middle position of the metal bar to the flowing injection molded body, thereby making it convenient for the injection molded body to fill the middle position of the metal bar well, and to reduce the defective rate caused by uneven flow of the injection molded body.

[0029] like Figure 1 As shown, a busbar molding structure is shown, the diameter of the upper tightening plate 101 is larger than the diameter of the upper connecting column 102, and the upper tightening plate 101 and the lower tightening plate 105 are symmetrically arranged with the horizontal central axis of the middle positioning support rod 103 as the symmetry axis, and the diameter of the lower tightening plate 105 is larger than the diameter of the positioning plug column 104, and the funnel-shaped middle positioning support rod 103 is evenly spaced and arranged in the middle position of the upper and lower metal bars, which can support and position the metal bar from the inside, so as to prevent the metal bar from being pressurized outside during the injection molding process. The internal depression causes deformation, and an upper tightening plate 101 and a lower tightening plate 105 are provided at the upper and lower ends of the middle positioning support rod 103, and the upper tightening plate 101 and the lower tightening plate 105 are provided on the outer wall of the metal bar, so that during the injection molding process, a tightening force can be provided to the metal bar from the outside, thereby positioning and protecting the metal bar, so as to prevent the internal pressure from bulging outward and causing deformation. The inside and outside cooperate with each other, reducing the possibility of deformation of the metal bar during the injection molding process, thereby facilitating the quality of the injection molded busbar product.

[0030] like Figure 3 As shown, a busbar molding structure is shown, in which the diverter ball 107 and the middle positioning support rod 103 are staggered, and the vertical center axis of the diverter ball 107 is coincident with the vertical center axis of the upper injection hole 202 and the vertical center axis of the lower injection hole 204. A diverter ball 107 is provided at the injection port. When the liquid injection molding body is injected, it will first contact the diverter ball 107. The spherical diverter ball 107 can provide a buffer and diversion effect for the liquid injection molding body, so as to prevent the injection molding body from directly rushing towards the metal busbar and causing deformation of the metal busbar due to excessive stamping.

[0031] Example 2

[0032] like Figure 2 and Figure 5As shown, an injection-molded busbar, the injection-molded busbar assembly 2 includes an upper metal bar 201, an upper injection-molded hole 202 is opened inside the upper metal bar 201, and a lower metal bar 203 is arranged at the bottom of the upper metal bar 201, a lower injection-molded hole 204 is opened inside the lower metal bar 203, and a lower positioning hole 205 is set on the side of the lower injection-molded hole 204, and the outside of the lower injection-molded hole 204 is wrapped with an insulating injection-molded body 206, the upper metal bar 201 and the lower metal bar 203 are arranged in parallel, and the materials of the upper metal bar 201 and the lower metal bar 203 are both set to metal copper material, and the lower metal bar 203 forms a locking structure with the positioning column 104 through the lower positioning hole 205, and the material of the insulating injection-molded body 206 is set to plastic material.

[0033] Working principle: The upper tightening plate 101, the upper connecting column 102, the positioning plug column 104, and the lower tightening plate 105 are all made of metal copper. During the production process, the upper connecting column 102, the middle positioning support rod 103 and the upper metal bus 201 can be directly welded together, and then the lower positioning sockets 205 inside the lower metal bus 203 are aligned and inserted into the positioning plug columns 104 in sequence, and the lower tightening plates 105 are welded from the outer wall of the lower metal bus 203 to the ends of the positioning plug columns 104. In this way, the upper metal bus 201 and the lower metal bus 203 can be connected together, and due to the positioning effect of the busbar forming positioning assembly 1, the position between the upper metal bus 201 and the lower metal bus 203 will not be deviated;

[0034] After the two metal bars are positioned, an injection molding device is used to inject the molten insulating injection molding body 206 into the metal bars. Under pressure, the liquid insulating injection molding body 206 can be injected into the middle space of the upper and lower metal bars from the upper injection molding hole 202 and the lower injection molding hole 204. When injected into the internal space of the two metal bars, the injection molding body will first rush to the diverter ball 107, be diverted by the spherical diverter ball 107, and then flow to the surrounding area, gradually filling the middle position of the metal bar to form a middle insulating layer. The two metal bars are limited by the upper tightening plate 101 and the lower tightening plate 105. Even if the internal part is subjected to the pressure of the injection molding body, it is not easy to bulge outward.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A busbar forming structure, characterized in that: The utility model comprises a busbar forming and positioning assembly (1), wherein the busbar forming and positioning assembly (1) comprises an upper tightening plate (101), the bottom of the upper tightening plate (101) is welded to an upper connecting column (102), and the bottom end of the upper connecting column (102) is fixedly connected to a middle positioning support rod (103), the bottom of the middle positioning support rod (103) is fixedly connected to a positioning plug column (104), and the bottom end of the positioning plug column (104) is welded to a lower tightening plate (105), the side of the middle positioning support rod (103) is fixedly connected to a connecting support rod (106), and the end of the connecting support rod (106) is fixedly connected to a diverter ball (107).

2. A busbar forming structure according to claim 1, characterized in that: The shape of the middle positioning support rod (103) is set to be funnel-shaped, and the material of the middle positioning support rod (103) is set to be plastic material.

3. The busbar forming structure according to claim 1, characterized in that: The diameter of the upper tightening plate (101) is greater than the diameter of the upper connecting column (102), and the upper tightening plate (101) and the lower tightening plate (105) are symmetrically arranged with the horizontal central axis of the middle positioning support rod (103) as the symmetry axis, and the diameter of the lower tightening plate (105) is greater than the diameter of the positioning plug column (104).

4. The busbar forming structure according to claim 1, characterized in that: The diverter ball (107) and the middle positioning support rod (103) are staggered, and the vertical center axis of the diverter ball (107) is coincident with the vertical center axis of the upper injection hole (202) and the vertical center axis of the lower injection hole (204).

5. An injection-molded busbar, a busbar molding structure according to any one of claims 1 to 4, characterized in that: It comprises a busbar molding and positioning component (1) and an injection-molded busbar component (2) arranged outside the busbar molding and positioning component (1); The injection-molded busbar assembly (2) comprises an upper metal bar (201), an upper injection-molded hole (202) is provided inside the upper metal bar (201), and a lower metal bar (203) is provided at the bottom of the upper metal bar (201), a lower injection-molded hole (204) is provided inside the lower metal bar (203), and a lower positioning socket (205) is provided on the side of the lower injection-molded hole (204), and the outside of the lower injection-molded hole (204) is wrapped with an insulating injection-molded body (206).

6. The injection-molded busbar according to claim 5, characterized in that: The upper metal row (201) and the lower metal row (203) are arranged in parallel, and the materials of the upper metal row (201) and the lower metal row (203) are both set to metal copper material, and the lower metal row (203) forms a locking structure with the positioning pin (104) through the lower positioning hole (205).

7. The injection-molded busbar according to claim 5, characterized in that: The material of the insulating injection molded body (206) is set to be plastic material.

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