Four-layer copper busbar structure and injection mold

Abstract

This utility model relates to the field of injection molding technology and discloses a four-layer copper busbar structure and injection mold. The four-layer copper busbar structure includes a positioning component and an installation component. The positioning component includes a first copper busbar and several positioning elements. All positioning elements are evenly spaced on the first copper busbar. The first copper busbar has a first surface and a second surface that are opposite to each other. Any positioning element is arranged around the first surface and the second surface, and a first positioning part is formed on the first surface and a second positioning part is formed on the second surface. The installation component includes a second copper busbar and a third copper busbar. The second copper busbar and the third copper busbar are respectively arranged on opposite sides of the first copper busbar and are respectively connected to the first surface and the second surface. This utility model can ensure that the area of ​​the copper busbar is not reduced and the current area of ​​the copper plate is not reduced, so that the area of ​​the copper busbar does not need to be increased, thereby meeting the requirements of lightweighting.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a four-layer copper busbar structure and an injection mold. Background Technology

[0002] With the electrification revolution in the automotive industry, the market for new energy vehicles (including pure electric battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs)) is experiencing explosive growth. In this wave, lightweighting, high integration, and high reliability have become overwhelming core technology requirements.

[0003] Currently, connectors are commonly used to electrically connect various devices within new energy vehicles. However, traditional assembly connectors are bulky and cannot meet the requirements for lightweight design. Therefore, embedded injection molded connectors have emerged. Embedded injection molding technology involves placing copper busbars directly into a mold and encapsulating them with molten engineering plastic. To meet the electrical requirements of connectors, they typically have multiple layers of copper busbars. The injection molding of these multiple layers necessitates consideration of the positioning between the copper busbars to prevent misalignment. A common method is to create positioning holes on the copper busbars to ensure proper positioning and prevent misalignment.

[0004] However, after opening positioning holes on the copper busbar, the current-carrying area of ​​the copper busbar will be reduced. At this time, the area of ​​the copper busbar needs to be increased so that the copper busbar can have a sufficient current-carrying area. As a result, the volume of the copper busbar will increase, and the connector made using the copper busbar will also increase in size, which cannot meet the requirements for lightweight design. Utility Model Content

[0005] In view of this, the present invention provides a four-layer copper busbar structure and injection mold to solve the problem that opening positioning holes on the copper busbar reduces the current area of ​​the copper busbar and requires increasing the volume of the copper busbar.

[0006] In a first aspect, this utility model provides a four-layer copper busbar structure, comprising: The positioning component includes a first copper busbar and a plurality of positioning elements. All the positioning elements are evenly spaced on the first copper busbar. The first copper busbar has a first surface and a second surface that are disposed opposite to each other. Each positioning element is disposed around the first surface and the second surface. The positioning element has a first positioning portion formed on the first surface and a second positioning portion formed on the second surface. The mounting assembly includes a second copper busbar and a third copper busbar, which are respectively disposed on opposite sides of the first copper busbar. The second copper busbar is adapted to be connected to the first surface through the first positioning part, and the third copper busbar is adapted to be connected to the second surface through the second positioning part. When the second copper busbar is connected to the first surface, the first positioning part is adapted to abut against the second copper busbar to position the second copper busbar and isolate the first copper busbar from the second copper busbar. When the third copper busbar is connected to the second surface, the second positioning part is adapted to abut against the third copper busbar to position the third copper busbar and isolate the third copper busbar from the first copper busbar.

[0007] Beneficial effects: By evenly spaced positioning elements on the first copper busbar, the positioning elements can position the second and third copper busbars via the first and second positioning parts formed thereon. The second and second positioning parts also isolate the first copper busbar from the second and third copper busbars. Furthermore, because all the positioning elements are evenly spaced, they provide uniform support to the second and third copper busbars. Therefore, by using positioning elements, drilling holes in the copper busbars can be avoided to achieve positioning between them. This ensures that the area of ​​the copper busbars is not reduced, nor is the current-carrying area of ​​the copper busbars reduced, thus eliminating the need to increase the area of ​​the copper busbars and meeting the requirements for lightweight design.

[0008] In one alternative embodiment, the system further includes a wrapping assembly comprising a fourth copper busbar and a wrapping element, the wrapping element having a first wrapping cavity and a second wrapping cavity, the first wrapping cavity and the second wrapping cavity being isolated from each other, the positioning assembly and the mounting assembly being disposed within the first wrapping cavity, and the fourth copper busbar being disposed within the second wrapping cavity.

[0009] Beneficial effects: By using a wrapping component on the positioning component and the mounting component, the wrapping component specifically includes a fourth copper busbar and a wrapping element. In this embodiment, the wrapping element is a plastic wrapping element. The wrapping element has a first wrapping cavity and a second wrapping cavity, wherein the first wrapping cavity and the second wrapping cavity are isolated from each other. The positioning component and the mounting component are both disposed in the first wrapping cavity, and the fourth copper busbar is disposed in the second wrapping cavity. In this way, the positioning component, the mounting component and the fourth copper busbar can be fixed together by the wrapping element, and the fourth copper busbar is isolated from the positioning component and the mounting component. In addition, the area of ​​the copper busbar can be increased by the fourth copper busbar, and the current area of ​​the copper busbar can be increased by the increased copper busbar area.

[0010] In one optional embodiment, the package has a plurality of first through portions and a plurality of second through portions on opposite sides, the first through portions and the second through portions communicating with the first package cavity, so that the fixing member can be inserted into the first package cavity to abut against the second copper busbar and the third copper busbar, and fix the second copper busbar and the third copper busbar.

[0011] Beneficial effects: By using the first and second through portions on the package, which in this embodiment are respectively the first through hole and the second through hole, both the first and second through portions are connected to the first package cavity, so that when the positioning component and the mounting component are set in the first package cavity, the fixing component can be inserted into the first package cavity through the first and second through portions to abut against the second and third copper busbars and fix the second and third copper busbars on the first copper busbar. In this embodiment, the fixing component is a pin.

[0012] In one optional embodiment, the package is further provided with a plurality of third through portions, which communicate with the second package cavity so that the fixing member can be inserted into the second package cavity to abut against the fourth copper busbar and fix the fourth copper busbar.

[0013] Beneficial effect: By opening a third through part on the package, which in this embodiment is a third through hole, and specifically communicating with the second package cavity, the fixing member can be inserted into the second package cavity through the third through part and abut against the fourth copper busbar, thereby fixing the fourth copper busbar. In this embodiment, the fixing member is an insert pin.

[0014] In one optional embodiment, the package is further provided with a plurality of fourth through portions, which are disposed between the second through portion and the third through portion. The fourth through portion communicates with the second package cavity so that the end of the adapter can be inserted into the second package cavity to abut against the fourth copper busbar and fix the fourth copper busbar.

[0015] Beneficial effects: By providing a fourth through-hole in the package, which is specifically connected to the second package cavity, the end of the adapter can be inserted into the second package cavity and abut against the fourth copper busbar, thereby fixing the fourth copper busbar in place. In this embodiment, the adapter is an adapter copper busbar.

[0016] Secondly, this utility model also provides an injection mold for the above-mentioned four-layer copper busbar structure, including a first mold and a second mold. The first mold is used to inject all the positioning parts on the first copper busbar, and the second mold is used to inject the wrapping parts on the positioning components and the mounting components.

[0017] Beneficial effects: By setting up an injection mold including a first mold and a second mold, wherein the first mold is mainly used to inject all the positioning parts on the first copper busbar, and the second mold is used to inject the wrapping parts on the positioning components and mounting components; in this way, the first mold can be used to inject all the positioning parts on the first copper busbar to complete the first injection molding; then the second copper busbar and the third copper busbar are connected to the first and second surfaces of the first copper busbar through the positioning parts, and then the second mold is used to inject the wrapping parts on the positioning components and mounting components. When the wrapping parts are injected, the fourth copper busbar is fixed by the adapter and the fixing part, so that when the wrapping parts are completed, the fourth copper busbar can be wrapped by the second wrapping cavity.

[0018] In one optional embodiment, the first mold includes a first base and a first injection assembly. The first base has a first mounting portion and a plurality of receiving portions communicating with the first mounting portion. The first mounting portion is adapted to install the first copper busbar. The output end of the first injection assembly communicates with all the receiving portions to inject plastic into the receiving portions and to form the positioning member in the receiving portions.

[0019] Beneficial effects: By setting the first mold including a first base and a first injection component, wherein the first base is provided with a first mounting part and a plurality of receiving parts, the first mounting part and the receiving parts in this embodiment are respectively a first mounting groove and a receiving groove, the first mounting part and all the receiving parts are connected, and the first copper busbar can be placed in the first mounting part, and the output end of the first injection component is connected to all the receiving parts, thereby enabling the first injection component to inject plastic into the receiving parts, thereby enabling the plastic to be formed into a positioning part in the receiving parts, and since the receiving parts and the first mounting part are connected, the positioning part will be attached to the first copper busbar after being formed in the receiving parts.

[0020] In one optional embodiment, three first injection components are provided. Each first injection component includes a first injection element and a first connecting element. One end of the first injection element is connected to an external plastic source, and the other end is connected to the first connecting element. The first connecting element is connected to a portion of the receiving portion so that plastic flows into the receiving portion.

[0021] Beneficial effects: By setting three first injection assemblies and setting each first injection assembly to include a first injection element and a first connecting element, in this embodiment the first injection element and the first connecting element are respectively a first injection tube and a first connecting tube, wherein one end of the first injection element is connected to an external plastic source, the other end is connected to one end of the first connecting element, and the other end of the first connecting element is connected to a portion of the receiving part, thereby allowing plastic to flow into the receiving part through the first injection element and the first connecting element.

[0022] In one optional embodiment, the second mold has a second base and a second injection assembly. The second base has a second mounting portion and a plurality of third mounting portions disposed on the same side of the second mounting portion. The second mounting portion is adapted to install the positioning assembly and the mounting assembly, and the third mounting portions are adapted to install the end of the adapter. The output end of the second injection assembly is connected to the second mounting portion to inject plastic into the second mounting portion and form the package within the second mounting portion.

[0023] Beneficial effects: By setting a second mold with a second base and a second injection assembly, the second base is provided with a second mounting part and several third mounting parts. In this embodiment, the second mounting part and the third mounting part are respectively a second mounting groove and a third mounting groove. All the third mounting parts are located on the same side of the second mounting part, and a positioning assembly and a mounting assembly can be installed in the second mounting part. The end of the adapter can be installed in the third mounting part to fix the fourth copper busbar in the second mounting part through the adapter and to separate the fourth copper busbar from the positioning assembly and the mounting assembly. The output end of the second injection assembly is connected to the second mounting part, thereby injecting plastic into the second mounting part and forming a package in the second mounting part.

[0024] In one optional embodiment, the second injection assembly includes at least five injection units and a third injection component. The five injection units are evenly spaced apart. Each injection unit includes a second injection component and a second connecting component. One end of the second injection component is connected to an external plastic source, and the other end is connected to the second connecting component. The second connecting component is connected to a portion of the second mounting portion to allow plastic to flow into the second mounting portion. One end of the third injection component is connected to an external plastic source, and the other end is connected to the second mounting portion.

[0025] Beneficial effects: By setting the second injection assembly to include five injection units and a third injection component, the five injection units are evenly spaced apart, and each injection unit includes a second injection component and a second connecting component. In this embodiment, the second injection component, the second connecting component, and the third injection component are respectively a second injection tube, a second connecting tube, and a third injection tube. One end of the second injection component is connected to an external plastic source, and the other end is connected to one end of the second connecting component. The other end of the second connecting component is connected to a portion of the second mounting part, thereby allowing plastic to flow into the second mounting part through the second injection component and the second connecting component. One end of the third injection component is connected to an external plastic source, and the other end is connected to the second mounting part via a bracket. In this way, the thermoplastic in the external plastic source can flow directly into the second mounting part, which is beneficial to improving the molding speed of the package in the second mounting part. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a four-layer copper busbar structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of a positioning component with a four-layer copper busbar structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the first mold of a four-layer copper busbar structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of a second mold with a four-layer copper busbar structure according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures: 11-First copper busbar; 12-Positioning component; 121-First positioning part; 122-Second positioning part; 21-Second copper busbar; 22-Third copper busbar; 31-Fourth copper busbar; 32-Package; 4-First mold; 41-First base; 5-Second mold; 51-Second base. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0031] According to an embodiment of the present invention, a four-layer copper busbar structure is provided, such as... Figures 1 to 4As shown, the assembly includes a positioning component and an installation component. The positioning component includes a first copper busbar 11 and a plurality of positioning elements 12. All the positioning elements 12 are evenly spaced on the first copper busbar 11. The first copper busbar 11 has a first surface and a second surface that are opposite to each other. Any positioning element 12 is arranged around the first surface and the second surface, and a first positioning portion 121 is formed on the first surface of the positioning element 12, and a second positioning portion 122 is formed on the second surface of the positioning element 12. The installation component includes a second copper busbar 21 and a third copper busbar 22. The second copper busbar 21 and the third copper busbar 22 are respectively arranged on the first copper busbar 11. On opposite sides of the copper busbar 11, the second copper busbar 21 is adapted to be connected to the first surface via the first positioning part 121, and the third copper busbar 22 is adapted to be connected to the second surface via the second positioning part 122; wherein, when the second copper busbar 21 is connected to the first surface, the first positioning part 121 is adapted to abut against the second copper busbar 21 to position the second copper busbar 21 and isolate the first copper busbar 11 and the second copper busbar 21; when the third copper busbar 22 is connected to the second surface, the second positioning part 122 is adapted to abut against the third copper busbar 22 to position the third copper busbar 22 and isolate the third copper busbar 22 and the first copper busbar 11.

[0032] The four-layer copper busbar structure described above, through an installation component mounted on a positioning assembly, wherein the positioning assembly includes a first copper busbar 11 and a plurality of positioning elements 12, the positioning elements 12 being positioning plastic in this embodiment, wherein the first copper busbar 11 has a first surface and a second surface arranged opposite to each other, and all the positioning elements 12 are evenly spaced on the first copper busbar 11, each positioning element 12 surrounding the first surface and the second surface, and a first positioning part 121 is formed on the side of the positioning element 12 on the first surface, and a second positioning part 122 is formed on the side of the positioning element 12 on the second surface, the first positioning part 121 and the second positioning part 122 being a first positioning block and a second positioning block, respectively, in this embodiment; when the installation component is mounted on the positioning assembly, the first positioning part 121 and the second positioning part 122 can provide positioning for the installation component, and because all the positioning elements 12 are evenly spaced, all the positioning elements 12 can provide uniform support force to the installation component through the first positioning part 121 and the second positioning part 122, which is beneficial to improving the support effect.

[0033] The mounting components specifically include a second copper busbar 21 and a third copper busbar 22, which are respectively disposed on opposite sides of the first copper busbar 11. The second copper busbar 21 can be connected to the first surface through the first positioning part 121, and the third copper busbar 22 can be connected to the second surface through the second positioning part 122. When the second copper busbar 21 is connected to the first surface, the first positioning part 121 can provide positioning for the second copper busbar 21 and can also isolate the second copper busbar 21 from the first copper busbar 11 to prevent the second copper busbar 21 from contacting the first copper busbar 11. When the third copper busbar 22 is connected to the second surface, the second positioning part 122 can provide positioning for the third copper busbar 22 and can also isolate the third copper busbar 22 from the first copper busbar 11 to prevent the third copper busbar 22 from contacting the first copper busbar 11.

[0034] In summary, by evenly spaced and arranged positioning elements 12 on the first copper busbar 11, the positioning elements 12 can position the second copper busbar 21 and the third copper busbar 22 through the first positioning part 121 and the second positioning part 122 formed thereon. The second positioning part 122 can also isolate the first copper busbar 11 from the second copper busbar 21 and the third copper busbar 22. In addition, since all the positioning elements 12 are evenly spaced, all the positioning elements 12 can provide uniform support force for the second copper busbar 21 and the third copper busbar 22. Therefore, by setting the positioning elements 12, it is possible to avoid drilling holes in the copper busbar to achieve positioning between the copper busbars. In this way, it can be ensured that the area of ​​the copper busbar is not reduced, and the current area of ​​the copper plate is not reduced, so there is no need to increase the area of ​​the copper busbar, thereby meeting the requirements of lightweighting.

[0035] In one embodiment, such as Figure 1 As shown, it also includes a wrapping assembly, which includes a fourth copper busbar 31 and a wrapping component 32. The wrapping component 32 has a first wrapping cavity and a second wrapping cavity, which are isolated from each other. The positioning assembly and the mounting assembly are both disposed in the first wrapping cavity, and the fourth copper busbar 31 is disposed in the second wrapping cavity.

[0036] The four-layer copper busbar structure described above utilizes a wrapping component mounted on the positioning and mounting components. Specifically, the wrapping component includes a fourth copper busbar 31 and a wrapping element 32. In this embodiment, the wrapping element 32 is made of plastic and has a first wrapping cavity and a second wrapping cavity, which are mutually isolated. The positioning and mounting components are both located within the first wrapping cavity, while the fourth copper busbar 31 is located within the second wrapping cavity. Thus, the wrapping element 32 can fix the positioning, mounting, and fourth copper busbar 31 together, while also isolating the fourth copper busbar 31 from the positioning and mounting components. Furthermore, the fourth copper busbar 31 can increase the area of ​​the copper busbar, thereby increasing the current-carrying capacity of the copper busbar.

[0037] In one embodiment, such as Figure 1 As shown, the package 32 has several first through portions and several second through portions on opposite sides. The first through portions and the second through portions are connected to the first package cavity so that the fixing member can be inserted into the first package cavity to abut against the second copper busbar 21 and the third copper busbar 22 and fix the second copper busbar 21 and the third copper busbar 22.

[0038] The four-layer copper busbar structure described above, through the first through portion and the second through portion opened on the package 32, in this embodiment the first through portion and the second through portion are respectively the first through hole and the second through hole, wherein the first through portion and the second through portion are connected to the first package cavity, so that when the positioning component and the mounting component are set in the first package cavity, the fixing component can be inserted into the first package cavity through the first through portion and the second through portion to abut against the second copper busbar 21 and the third copper busbar 22, and fix the second copper busbar 21 and the third copper busbar 22 on the first copper busbar 11. In this embodiment the fixing component is a pin.

[0039] In one embodiment, such as Figure 1 As shown, the package 32 is also provided with several third through portions, which are connected to the second package cavity so that the fixing member can be inserted into the second package cavity to abut against the fourth copper busbar 31 and fix the fourth copper busbar 31.

[0040] The above-described four-layer copper busbar structure, through the third through-part on the package 32, which in this embodiment is a third through-hole, specifically communicates with the second package cavity, so that the fixing member can be inserted into the second package cavity through the third through-part and abut against the fourth copper busbar 31, thereby fixing the fourth copper busbar 31. In this embodiment, the fixing member is a pin.

[0041] In one embodiment, such as Figure 1As shown, the package 32 is also provided with a number of fourth through portions. The fourth through portions are located between the second through portions and the third through portions. The fourth through portions are connected to the second package cavity so that the end of the adapter can be inserted into the second package cavity to abut against the fourth copper busbar 31 and fix the fourth copper busbar 31.

[0042] The four-layer copper busbar structure described above, through the fourth through-part on the package 32, which in this embodiment is the fourth through-hole, specifically communicates with the second package cavity, so that the end of the adapter can be inserted into the second package cavity and abut against the fourth copper busbar 31, thereby fixing the fourth copper busbar 31. In this embodiment, the adapter is an adapter copper busbar.

[0043] According to an embodiment of this utility model, another aspect is also provided: an injection mold applied to the aforementioned four-layer copper busbar structure, such as... Figure 3 and Figure 4 As shown, it includes a first mold 4 and a second mold 5. The first mold 4 is used to injection mold all the positioning parts 12 on the first copper busbar 11, and the second mold 5 is used to injection mold the wrapping parts 32 on the positioning assembly and the mounting assembly.

[0044] The injection mold described above includes a first mold 4 and a second mold 5. The first mold 4 is mainly used to inject all the positioning parts 12 onto the first copper busbar 11, while the second mold 5 is used to inject the wrapping parts 32 onto the positioning components and the mounting components. Thus, the first mold 4 is used to inject all the positioning parts 12 onto the first copper busbar 11 to complete the first injection molding. Then, the second copper busbar 21 and the third copper busbar 22 are connected to the first and second surfaces of the first copper busbar 11 through the positioning parts 12. After that, the second mold 5 is used to inject the wrapping parts 32 onto the positioning components and the mounting components. When the wrapping parts 32 are injected, the fourth copper busbar 31 is fixed through the adapter and the fixing part, so that when the injection molding is completed, the wrapping parts 32 can wrap the fourth copper busbar 31 through the second wrapping cavity.

[0045] In one embodiment, such as Figure 3 As shown, the first mold 4 includes a first base 41 and a first injection assembly. The first base 41 has a first mounting part and several receiving parts that are connected to the first mounting part. The first mounting part is suitable for mounting a first copper busbar 11. The output end of the first injection assembly is connected to all the receiving parts to inject plastic into the receiving parts and form a positioning member 12 in the receiving parts.

[0046] The injection mold with the above structure includes a first mold 4 comprising a first base 41 and a first injection assembly. The first base 41 has a first mounting portion and several receiving portions. In this embodiment, the first mounting portion and the receiving portions are respectively a first mounting groove and a receiving groove. The first mounting portion is connected to all the receiving portions, and a first copper busbar 11 can be placed in the first mounting portion. The output end of the first injection assembly is connected to all the receiving portions, so that the first injection assembly can inject plastic into the receiving portions, thereby allowing the plastic to be formed into a positioning member 12 in the receiving portions. Since the receiving portions and the first mounting portion are connected, the positioning member 12 will be attached to the first copper busbar 11 after being formed in the receiving portions.

[0047] In one embodiment, such as Figure 3 As shown, there are three first injection components. Each first injection component includes a first injection part and a first connecting part. One end of the first injection part is connected to an external plastic source, and the other end is connected to the first connecting part. The first connecting part is connected to a partial receiving part so that the plastic flows into the receiving part.

[0048] The injection mold with the above structure, by setting three first injection components and setting each first injection component to include a first injection element and a first connecting element, in this embodiment the first injection element and the first connecting element are respectively a first injection tube and a first connecting tube, wherein one end of the first injection element is connected to an external plastic source, the other end is connected to one end of the first connecting element, and the other end of the first connecting element is connected to a partial receiving part, so that the plastic can flow into the receiving part through the first injection element and the first connecting element.

[0049] In one embodiment, such as Figure 4 As shown, the second mold 5 has a second base 51 and a second injection assembly. The second base 51 has a second mounting portion and several third mounting portions disposed on the same side of the second mounting portion. The second mounting portion is suitable for mounting a positioning assembly and a mounting assembly, and the third mounting portion is suitable for mounting the end of the adapter. The output end of the second injection assembly is connected to the second mounting portion to inject plastic into the second mounting portion and to form a wrapping part 32 in the second mounting portion.

[0050] The injection mold with the above structure has a second base 51 and a second injection assembly in the second mold 5. The second base 51 has a second mounting part and several third mounting parts. In this embodiment, the second mounting part and the third mounting part are the second mounting groove and the third mounting groove, respectively. All the third mounting parts are located on the same side of the second mounting part. The positioning assembly and the mounting assembly can be installed in the second mounting part. The end of the adapter can be installed in the third mounting part to fix the fourth copper busbar 31 in the second mounting part through the adapter and to separate the fourth copper busbar 31 from the positioning assembly and the mounting assembly. The output end of the second injection assembly is connected to the second mounting part, thereby injecting plastic into the second mounting part and forming the wrapping part 32 in the second mounting part.

[0051] It should be noted that after the package 32 is formed, the cavity in which the package 32 encloses the positioning component and the mounting component is the first enclosing cavity, and the cavity in which the package 32 encloses the fourth copper busbar 31 is the second enclosing cavity.

[0052] In one embodiment, such as Figure 4 As shown, the second injection assembly includes at least five injection units and a third injection component. The five injection units are evenly spaced apart. Each injection unit includes a second injection component and a second connecting component. One end of the second injection component is connected to an external plastic source, and the other end is connected to the second connecting component. The second connecting component is connected to a portion of the second mounting part so that plastic flows into the second mounting part. One end of the third injection component is connected to an external plastic source, and the other end is connected to the second mounting part.

[0053] The injection mold with the above-described structure includes a second injection assembly comprising five injection units and a third injection component. The five injection units are evenly spaced apart, and each injection unit includes a second injection component and a second connecting component. In this embodiment, the second injection component, the second connecting component, and the third injection component are respectively a second injection tube, a second connecting tube, and a third injection tube. One end of the second injection component is connected to an external plastic source, and the other end is connected to one end of the second connecting component. The other end of the second connecting component is connected to a portion of the second mounting part, allowing plastic to flow into the second mounting part through the second injection component and the second connecting component. One end of the third injection component is connected to an external plastic source, and the other end is connected to the second mounting part via a bracket. This allows the thermoplastic from the external plastic source to flow directly into the second mounting part, which is beneficial for increasing the molding speed of the package 32 in the second mounting part.

[0054] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A four-layer copper busbar structure, characterized in that, include: The positioning component includes a first copper busbar (11) and a plurality of positioning elements (12). All the positioning elements (12) are evenly spaced on the first copper busbar (11). The first copper busbar (11) has a first surface and a second surface that are arranged opposite to each other. Any one of the positioning elements (12) is arranged around the first surface and the second surface. The positioning element (12) has a first positioning part (121) formed on the first surface and a second positioning part (122) formed on the second surface. The mounting assembly includes a second copper busbar (21) and a third copper busbar (22), the second copper busbar (21) and the third copper busbar (22) being respectively disposed on opposite sides of the first copper busbar (11), the second copper busbar (21) being adapted to be connected to the first surface through the first positioning part (121), and the third copper busbar (22) being adapted to be connected to the second surface through the second positioning part (122); When the second copper busbar (21) is connected to the first surface, the first positioning part (121) is adapted to abut against the second copper busbar (21) to position the second copper busbar (21) and isolate the first copper busbar (11) and the second copper busbar (21). When the third copper busbar (22) is connected to the second surface, the second positioning part (122) is adapted to abut against the third copper busbar (22) to position the third copper busbar (22) and isolate the third copper busbar (22) and the first copper busbar (11).

2. The four-layer copper busbar structure according to claim 1, characterized in that, It also includes a packaging assembly, which includes a fourth copper busbar (31) and a packaging element (32). The packaging element (32) has a first packaging cavity and a second packaging cavity, which are isolated from each other. The positioning assembly and the mounting assembly are both disposed in the first packaging cavity, and the fourth copper busbar (31) is disposed in the second packaging cavity.

3. The four-layer copper busbar structure according to claim 2, characterized in that, The package (32) has several first through portions and several second through portions on opposite sides. The first through portions and the second through portions are connected to the first package cavity so that the fixing member can be inserted into the first package cavity to abut against the second copper busbar (21) and the third copper busbar (22) and fix the second copper busbar (21) and the third copper busbar (22).

4. The four-layer copper busbar structure according to claim 3, characterized in that, The package (32) is also provided with a number of third through portions, which are connected to the second package cavity so that the fixing member can be inserted into the second package cavity to abut against the fourth copper busbar (31) and fix the fourth copper busbar (31).

5. The four-layer copper busbar structure according to claim 4, characterized in that, The package (32) is also provided with a plurality of fourth through portions, which are disposed between the second through portion and the third through portion. The fourth through portion communicates with the second package cavity so that the end of the adapter can be inserted into the second package cavity to abut against the fourth copper busbar (31) and fix the fourth copper busbar (31).

6. An injection mold, applied to the four-layer copper busbar structure according to any one of claims 1-5, characterized in that, It includes a first mold (4) and a second mold (5), the first mold (4) being used to injection mold all the positioning parts (12) on the first copper busbar (11), and the second mold (5) being used to injection mold the wrapping parts (32) on the positioning assembly and the mounting assembly.

7. The injection mold according to claim 6, characterized in that, The first mold (4) includes a first base (41) and a first injection assembly. The first base (41) has a first mounting part and a plurality of receiving parts connected to the first mounting part. The first mounting part is suitable for mounting the first copper busbar (11). The output end of the first injection assembly is connected to all the receiving parts to inject plastic into the receiving parts and to form the positioning member (12) in the receiving parts.

8. The injection mold according to claim 7, characterized in that, The first injection assembly is provided in three parts. Each first injection assembly includes a first injection part and a first connecting part. One end of the first injection part is connected to an external plastic source, and the other end is connected to the first connecting part. The first connecting part is connected to a portion of the receiving part so that plastic flows into the receiving part.

9. The injection mold according to claim 8, characterized in that, The second mold (5) has a second base (51) and a second injection assembly. The second base (51) has a second mounting part and a plurality of third mounting parts disposed on the same side of the second mounting part. The second mounting part is suitable for mounting the positioning assembly and the mounting assembly, and the third mounting part is suitable for mounting the end of the adapter. The output end of the second injection assembly is connected to the second mounting portion to inject plastic into the second mounting portion and form the package (32) within the second mounting portion.

10. The injection mold according to claim 9, characterized in that, The second injection assembly includes at least five injection units and a third injection component. The five injection units are evenly spaced apart. Each injection unit includes a second injection component and a second connecting component. One end of the second injection component is connected to an external plastic source, and the other end is connected to the second connecting component. The second connecting component is connected to a portion of the second mounting portion to allow plastic to flow into the second mounting portion. One end of the third injection component is connected to an external plastic source, and the other end is connected to the second mounting portion.

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