Copper bar with novel press-fit fixing structure

Abstract

The utility model discloses a copper bar with a novel press-fit fixing structure, which comprises a first copper bar, a second copper bar and an adhesive sheet, the surface of the first copper bar is coated with a first insulating layer, the surface of the second copper bar is coated with a second insulating layer, and the adhesive sheet is arranged between the surface of the first insulating layer and the surface of the second insulating layer. The first insulating layer of the first copper bar and the second insulating layer of the second copper bar are in press fit connection with the adhesive sheet in a hot pressing mode, the two ends of the first copper bar are respectively provided with a first conductive contact area exposed out of the first insulating layer, and the two ends of the second copper bar are respectively provided with a second conductive contact area exposed out of the second insulating layer. According to the utility model, the first insulating layer of the first copper bar and the second insulating layer of the second copper bar do not need to be fixed through gluing, so that the production process is optimized, the assembly is convenient and rapid, the shape and the structure of the copper bar can be optimized according to different space requirements, the flexibility is high, the copper bar adapts to various space limitations and layouts, and the installation complexity and time are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper bar technical field more specifically, it is a kind of copper bar with new type compression fixed structure. BACKGROUND

[0002] In the new energy field, especially in new energy vehicles and server applications, the external current connection of the electrical connector is mainly connected by copper alloy, and the traditional electrical connection method mainly relies on wires, which can meet the basic current transmission requirements to some extent, but with the progress of technology, copper bar can carry higher current due to its large cross-section characteristics, and can reduce resistance and energy loss. Compared with the traditional cumbersome, time-consuming and troublesome wiring method, copper bar is more suitable for high-current and high-conductivity occasions.

[0003] Composite copper bar is a multi-layer composite structure connecting bar, two or more copper bars are fixedly connected together to realize more efficient power transmission and reliable connection, such as the utility model patent CN219457895U discloses a battery module, which is fixedly connected by two copper bars by gluing, but the gluing connection is far less strong than mechanical connection or compression connection, which can cause insufficient connection strength of the two. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the above-mentioned defects in the prior art, and provides a copper bar with a new compression fixing structure, which does not need to be fixedly connected by gluing, optimizes the production process, facilitates quick assembly and saves internal space of the mechanism.

[0005] To achieve the above-mentioned purpose, the utility model provides a copper bar with a new compression fixing structure, which comprises a first copper bar, a second copper bar and an adhesive sheet, the surface of the first copper bar is coated with a first insulating layer for insulation, the surface of the second copper bar is coated with a second insulating layer for insulation, the adhesive sheet is arranged between the surface of the first insulating layer of the first copper bar and the surface of the second insulating layer of the second copper bar, the first insulating layer of the first copper bar and the second insulating layer of the second copper bar are connected by hot pressing with the adhesive sheet, the two ends of the first copper bar are respectively provided with first conductive contact areas exposed to the first insulating layer, and the two ends of the second copper bar are respectively provided with second conductive contact areas exposed to the second insulating layer.

[0006] Preferably, the adhesive sheet includes but is not limited to PU film or PVC film.

[0007] Preferably, the shape of the adhesive sheet corresponds to the shape of the opposite part of the surface of the first insulating layer of the first copper bar and the surface of the second insulating layer of the second copper bar.

[0008] Preferably, the first and second insulating layers are uniformly coated on the surfaces of the first and second copper bars by spraying.

[0009] Preferably, the first and second insulating layers are made of insulating resin.

[0010] Preferably, the first and second copper bars are horizontally bent outward at both ends of the outer sidewalls to form first and second copper bar connecting portions, or the first and second copper bars are first bent downward and then horizontally bent outward at both ends to form the first and second copper bar connecting portions, the first conductive contact area is located on the bottom surface of the first copper bar connecting portion, and the second conductive contact area is located on the bottom surface of the second copper bar connecting portion.

[0011] Preferably, the first and second copper bars are in L-shaped structure with the first and second copper bar connecting portions respectively, or the first and second copper bars are in Z-shaped structure with the first and second copper bar connecting portions respectively, the corner portions of the first and second copper bars are arc-shaped, and the edges of the first and second copper bar connecting portions are arc-shaped chamfered.

[0012] Preferably, mounting holes are provided in the first and second copper bar connecting portions, and the top edges of the mounting holes are provided with third conductive contact areas exposed from the first and second insulating layers respectively.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model has simple structure and reasonable design, the surface of the first insulating layer of the first copper bar and the surface of the second insulating layer of the second copper bar are connected by hot pressing between the viscose sheet, compared with the method that the insulating surfaces of two copper bars are fixed by traditional gluing process, the utility model does not need to use gluing to realize fixation, optimizes production process and is convenient and fast to assemble.

[0015] 2. The shape and structure of the first and second copper bars can be optimized according to different space requirements, the design flexibility is high, the power distribution system can be more compactly arranged in the mechanism with limited space, various space limitations and layout requirements can be adapted, the line layout and connection are simplified, and the installation complexity and time are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 is a structural schematic diagram of a copper bar with a novel compression and fixing structure provided by the first embodiment of the present application;

[0018] Figure 2 is an explosion schematic diagram of a copper bar with a novel compression and fixing structure provided by the first embodiment of the present application;

[0019] Figure 3 is an explosion enlarged schematic diagram of a copper bar with a novel compression and fixing structure provided by the first embodiment of the present application;

[0020] Figure 4 is a cross-sectional schematic diagram of a copper bar with a novel compression and fixing structure provided by the first embodiment of the present application;

[0021] Figure 5 is a structural schematic diagram of a copper bar with a novel compression and fixing structure provided by the second embodiment of the present application;

[0022] Figure 6 is an explosion schematic diagram of a copper bar with a novel compression and fixing structure provided by the second embodiment of the present application;

[0023] Figure 7 is a side view schematic diagram of a copper bar with a novel compression and fixing structure provided by the second embodiment of the present application;

[0024] Figure 8 is an explosion enlarged schematic diagram of a copper bar with a novel compression and fixing structure provided by the second embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0026] Embodiment one

[0027] Please refer to Figure 1 andFigure 2 The embodiment one of the utility model provides a copper bar with novel compression fixed structure, including first copper bar 1, second copper bar 2 and viscose piece 3, the following combining with the drawing to the various components of this embodiment are explained in detail.

[0028] As Figure 1 And Figure 2 Indicated, the surface of first copper bar 1 can be coated with first insulating layer 11 for insulation, the surface of second copper bar 2 is coated with second insulating layer 21 for insulation, viscose piece 3 is set between the surface of first insulating layer 11 of first copper bar 1 and the surface of second insulating layer 21 of second copper bar 2, and first insulating layer 11 of first copper bar 1 and second insulating layer 21 of second copper bar 2 are connected by hot-pressing mode with viscose piece 3.

[0029] The insulating surface of the first copper bar 1 of the embodiment one and the insulating surface of the second copper bar 2 can be placed together. Among them, the first copper bar 1 and the second copper bar 2 are respectively used as positive and negative conductors of electric current, mainly used for conducting electric energy. Copper has good electrical conductivity, which can ensure efficient transmission of electric current and lower resistance, reducing energy loss.

[0030] Preferably, the shape of the viscose piece 3 can correspond to the shape of the surface of the first insulating layer 11 of the first copper bar 1 and the surface of the second insulating layer 21 of the second copper bar 2.

[0031] Further, the viscose piece 3 can be set as a PU film or a PVC film. In implementation, the size of the viscose piece can be cut according to needs, and can slightly extend the edges of the first insulating layer 11 of the first copper bar 1 and the second insulating layer 21 of the second copper bar 2. Of course, in other embodiments, various films such as PE film, PP film, acrylic viscose film and the like commonly used on the market can also be used to realize hot-pressing connection, and the embodiment does not limit the same.

[0032] In specific implementation, various hot presses and supporting molds can be used to heat and press the first insulating layer 11 of the first copper bar 1, the viscose piece 3 and the second insulating layer 21 of the second copper bar 2, but the embodiment does not involve improvements in hot-pressing mechanism and supporting molds, which will not be described here.

[0033] As Figure 3 Specifically, the bottom surface of the two ends of the first copper bar 1 can be provided with a first conductive contact area 12 exposed to the first insulating layer 11, and the bottom surface of the two ends of the second copper bar 2 can be provided with a second conductive contact area 22 exposed to the second insulating layer 21.

[0034] As Figure 4As shown, in order to improve the insulation performance to achieve electrical safety, the first insulating layer 11 and the second insulating layer 21 can be uniformly coated on the surface of the first copper bar 1 and the second copper bar 2 by spraying, and the first insulating layer 11 and the second insulating layer 21 can provide electrical isolation for the first copper bar 1 and the second copper bar 2 respectively to prevent short circuit.

[0035] The materials of the first insulating layer 11 and the second insulating layer 21 can be set as insulating resin, preferably as epoxy resin, and of course, other various insulating resins can be used in other embodiments, which are not limited in the present embodiment.

[0036] The epoxy resin has high insulation performance and heat resistance, and is uniformly coated by spraying to ensure that the first copper bar 1 and the second copper bar 2 have good protection.

[0037] Specifically, the outer side walls of the first copper bar 1 and the second copper bar 2 can be bent outwardly and horizontally at both ends to form the first copper bar connecting part 101 and the second copper bar connecting part 102, and the first conductive contact area 12 is located on the bottom surface of the first copper bar connecting part 101, and the second conductive contact area 22 is located on the bottom surface of the second copper bar connecting part 102.

[0038] Further, the first copper bar 1 and the second copper bar 2 are respectively in L-shaped structure with the first copper bar connecting part 101 and the second copper bar connecting part 102 corresponding thereto, and the corner parts of the first copper bar 1 and the second copper bar 2 are all arc-shaped, and the edges of each first copper bar connecting part 101 and second copper bar connecting part 102 are all arc-shaped chamfered.

[0039] Preferably, each first copper bar connecting part 101 and second copper bar connecting part 102 is arranged in parallel and on the same plane.

[0040] Preferably, each first copper bar connecting part 101 and second copper bar connecting part 102 can be provided with a mounting hole 101, and the top edge of each mounting hole 103 is provided with a third conductive contact area 1031 exposed to the first insulating layer 11 and the second insulating layer 21 corresponding thereto.

[0041] The mounting hole 101 can realize the connection between the positive and negative copper bars and the external circuit, and the arc-shaped chamfered edges can also prevent the discharge of current at the sharp ends of the first copper bar connecting part 101 and the second copper bar connecting part 102.

[0042] Embodiment two

[0043] As Figure 5The utility model discloses an embodiment two provides a copper bar with novel compression fixed structure, it also includes first copper bar 1, second copper bar 2, insulating layer 3 and viscose piece 3, compared with embodiment one, the insulating surface of first copper bar 1 of this embodiment two and the insulating surface of second copper bar 2 can be stacked and placed.

[0044] As Figure 6 to Figure 8 The two ends of the first copper bar 1 and the second copper bar 2 are respectively bent downward first and then bent horizontally outward to form a first copper bar connecting part 101 and a second copper bar connecting part 102.

[0045] Further, the first copper bar 1 and the second copper bar 2 respectively have a Z-shaped structure with the first copper bar connecting part 101 and the second copper bar connecting part 102 corresponding thereto, and the corner parts of the first copper bar 1 and the second copper bar 2 are all arc-shaped, and the edges and corners of each first copper bar connecting part 101 and second copper bar connecting part 102 are all provided with arc-shaped chamfers.

[0046] In this embodiment two, the material of the viscose piece 3, the coating method of the first insulating layer 11 and the second insulating layer 21, and the structure of the mounting hole 101 on the first copper bar connecting part 101 and the second copper bar connecting part 102 are all the same as those in the above-mentioned embodiment one, and will not be repeated here.

[0047] In this embodiment one and this embodiment two, the shapes and structures of the first copper bar 1 and the second copper bar 2 can adapt to the internal space structures of different mechanisms, and can make the compatibility better in different application scenarios.

[0048] Of course, in other embodiments, the shapes and structures of the first copper bar 1 and the second copper bar 2 can be designed and adjusted according to actual needs, so that they can flexibly adapt to different space requirements, facilitate subsequent rapid assembly, and save internal space of the mechanism.

[0049] In summary, the utility model has the following beneficial effects:

[0050] 1. In the utility model, the surface of the first insulating layer of the first copper bar and the surface of the second insulating layer of the second copper bar are connected with the viscose piece through hot pressing, compared with the method that the insulating surfaces of two copper bars are fixed through traditional gluing process, the utility model does not need to use gluing to realize fixation, optimizes production process, and facilitates rapid assembly.

[0051] 2. The shapes and structures of the first copper bar and the second copper bar can be optimized according to different space requirements, the design flexibility is high, the power distribution system can be arranged more compactly in a mechanism with limited space, various space limitations and layout requirements can be adapted, the line layout and connection are also simplified, and the installation complexity and time are reduced.

[0052] The above embodiment is the preferred embodiment of the present application, but the embodiment of the present application is not limited by the above embodiment, and any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the present application should be an equivalent replacement mode, and all are included in the protection scope of the present application.

Claims

1. A copper bar with a new type of press-fit fixing structure, characterized in that: The application relates to a copper bar assembly, which comprises a first copper bar (1), a second copper bar (2) and a glue sheet (3), the surface of the first copper bar (1) is coated with a first insulation layer (11) for insulation, the surface of the second copper bar (2) is coated with a second insulation layer (21) for insulation, the glue sheet (3) is arranged between the surface of the first insulation layer (11) of the first copper bar (1) and the surface of the second insulation layer (21) of the second copper bar (2), the first insulation layer (11) of the first copper bar (1) and the second insulation layer (21) of the second copper bar (2) are connected with the glue sheet (3) through hot pressing, the two ends of the first copper bar (1) are respectively provided with first conductive contact areas (12) exposed to the first insulation layer (11), and the two ends of the second copper bar (2) are respectively provided with second conductive contact areas (22) exposed to the second insulation layer (21).

2. The copper bar with a new type of press-fit fixing structure according to claim 1, characterized in that: The glue sheet (3) is a PU glue sheet or a PVC glue sheet.

3. The copper bar with a new type of press-fit fixing structure according to claim 1, characterized in that: The shape of the glue sheet (3) corresponds to the shape of the relative part of the surface of the first insulation layer (11) of the first copper bar (1) and the surface of the second insulation layer (21) of the second copper bar (2).

4. The copper bar with a new type of press-fit fixing structure according to claim 1, characterized in that: The first insulation layer (11) is uniformly coated on the surface of the first copper bar (1) through spraying, and the second insulation layer (21) is uniformly coated on the surface of the second copper bar (2) through spraying.

5. The copper bar with a new type of press-fit fixing structure according to claim 1, characterized in that: The materials of the first insulation layer (11) and the second insulation layer (21) are both insulating resins.

6. The copper bar with a new type of press-fit fixing structure according to claim 1, characterized in that: The outer side walls of the first copper bar (1) and the second copper bar (2) are respectively horizontally bent outward at the two ends to form first copper bar connecting portions (101) and second copper bar connecting portions (102), or the two ends of the first copper bar (1) and the second copper bar (2) are respectively downward bent first and then horizontally bent outward to form the first copper bar connecting portions (101) and the second copper bar connecting portions (102), the first conductive contact areas (12) are located on the bottom surfaces of the first copper bar connecting portions (101), and the second conductive contact areas (22) are located on the bottom surfaces of the second copper bar connecting portions (102).

7. The copper bar with a new press-fit fixing structure according to claim 6, characterized in that: The first copper bar (1) and the second copper bar (2) respectively form L-shaped structures with the first copper bar connecting portions (101) and the second copper bar connecting portions (102) corresponding thereto, or the first copper bar (1) and the second copper bar (2) respectively form Z-shaped structures with the first copper bar connecting portions (101) and the second copper bar connecting portions (102) corresponding thereto, the corner portions of the first copper bar (1) and the second copper bar (2) are all arc-shaped, and the edges of each first copper bar connecting portion (101) and each second copper bar connecting portion (102) are all arc-shaped chamfers.

8. The copper bar with a new press-fit fixing structure according to claim 6, characterized in that: Each first copper bar connecting portion (101) and each second copper bar connecting portion (102) is provided with a mounting hole (103), and the top edges of each mounting hole (103) are respectively provided with third conductive contact areas (1031) exposed to the first insulation layer (11) and the second insulation layer (21) corresponding thereto.

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