Battery copper bar output structure

Abstract

The battery copper bar output structure comprises a battery box body, a battery module, a plastic end plate, a fuse, a first copper bar, a second copper bar and a third copper bar, the battery module is arranged in the battery box body, and the plastic end plate is arranged on the end surface of one end of the battery box body; the fuse, the first copper bar, the second copper bar and the third copper bar are all arranged on the plastic end plate; one end of the fuse is connected with the first copper bar, and the other end of the fuse is connected with the second copper bar; the first copper bar and the third copper bar are respectively connected with the battery module; and the second copper bar is connected with an external terminal. The LED lamp is simple in structure, good in heat dissipation effect, convenient to install and maintain, good in connection stability, economical, safe and practical, and can well meet the requirements of actual use.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to a battery copper busbar output structure. Background Art

[0002] With the in-depth development of new energy industries such as energy storage, photovoltaics, and wind power, various new energy sources are integrating with each other to form complementary energy stations. Complementary energy stations generally include wind power storage power stations, photovoltaic power stations, and wind and solar power storage power stations.

[0003] With the rapid development of new energy, the currents of various new energy products are increasing, and the performance requirements are also becoming increasingly demanding. In the current market, conventional UPS battery modules use terminal connections for output. These terminals occupy a significant amount of module space, increasing the overall size of the product. Furthermore, the greater the overcurrent, the fewer corresponding terminal options there are, increasing the cost. Furthermore, module terminal connections require additional components and multiple transfers, increasing the risk of connection reliability and reducing stability. Utility Model Content

[0004] The purpose of the utility model is to provide a battery copper busbar output structure to solve the technical problems of the existing UPS battery module using terminal connection output, which makes the product bulky, has fewer terminal options and higher costs as the overcurrent increases, and the connection of the module terminal requires multiple transfers and has low connection reliability.

[0005] To achieve the above-mentioned objectives, an embodiment of the present invention provides a battery copper bar output structure, comprising a battery case, a battery module, a plastic end plate, a fuse, a first copper bar, a second copper bar, and a third copper bar; the battery module is disposed in the battery case, the plastic end plate is disposed on an end surface of one end of the battery case; the fuse, the first copper bar, the second copper bar, and the third copper bar are all disposed on the plastic end plate;

[0006] One end of the fuse is connected to the first copper bar, and the other end is connected to the second copper bar; the first copper bar and the third copper bar are connected to the battery module respectively; the second copper bar is connected to the external terminal.

[0007] As a preferred embodiment, the first copper busbar includes a first connecting portion, a parallel portion, and a second connecting portion that are integrally arranged; the first connecting portion is vertically arranged on one side of the parallel portion, the second connecting portion is vertically arranged on one end of the parallel portion, and the first connecting portion and the second connecting portion are vertically arranged.

[0008] As a preferred embodiment, the first connecting portion and the second connecting portion are both extended horizontally toward the battery module; the first connecting portion is connected to the plastic end plate and the battery module respectively, the parallel portion is fixed to the plastic end plate, and the second connecting portion is connected to the fuse.

[0009] As a preferred embodiment, the parallel portion is arranged in an "L" shape; the connection between the first connecting portion and the parallel portion, and the connection between the second connecting portion and the parallel portion are both provided with an arc.

[0010] As a preferred embodiment, the second copper busbar includes a horizontal portion, an arc portion and a vertical portion; one side of the arc portion is connected to one side of the vertical portion, and the other side of the arc portion is connected to one end of the horizontal portion; the vertical portion is connected to the fuse, and the horizontal portion is connected to the external terminal.

[0011] As a preferred embodiment, the vertical portion and the horizontal portion are arranged perpendicularly; the vertical portion is arranged in an "L" shape; and the horizontal portion is arranged in a plate shape.

[0012] As a preferred embodiment, a first clamping position for accommodating the first copper bar is provided at one end corner of the plastic end plate, and the parallel portion is fixed to the first clamping position via a first insulating column;

[0013] The other end corner of the plastic end plate is provided with a second clamping position for accommodating the second copper bar, and the second clamping position is arranged diagonally to the first clamping position; the transverse portion is fixed to the second clamping position by a second insulating column;

[0014] A third clamping position for accommodating the third copper bar is provided at another end corner of the plastic end plate. The third clamping position and the first clamping position are both provided close to the same long side of the plastic end plate. The third copper bar is fixed to the third clamping position through a third insulating column.

[0015] As a preferred embodiment, the first copper bar and the second copper bar are both positive copper bars, and the third copper bar is a negative copper bar; the first copper bar is connected to the positive electrode of the battery module, and the third copper bar is connected to the negative electrode of the battery module.

[0016] As a preferred embodiment, a cooling fan is further provided on the plastic end plate, and the cooling fan is arranged diagonally to the third copper busbar.

[0017] As a preferred embodiment, a notch is provided on the plastic end plate and passes through the plastic end plate, and the fuse is fixed in the notch through the first copper bar and the second copper bar; the notch is adapted to the fuse, and a first gap is provided between the fuse and the notch.

[0018] As a preferred embodiment, the plastic end plate is fixed to the end surface of the battery box by a plurality of insulating bolts; and the plurality of insulating bolts are evenly arranged on the edge of the plastic end plate.

[0019] As a preferred embodiment, the battery box includes a cover plate, a box body and a panel, the cover plate covers the top of the box body; the plastic end plate is arranged at one end of the box body close to the panel, the panel covers the side of the plastic end plate away from the battery module, and the panel is fixedly connected to the plastic end plate; a second gap is provided between the plastic end plate and the cover plate; a third gap is provided between the plastic end plate and the panel.

[0020] The technical solution proposed in the present invention has the following beneficial effects: the present application adopts the first copper bar, the second copper bar and the third copper bar and fixes them on the plastic end plate, and then sets the plastic end plate at one end of the box body, which can effectively solve the insulation problem of the fuse connection while realizing the output of the copper bar. The output through the first copper bar, the second copper bar and the third copper bar can most effectively shorten the connection distance, and at the same time can make the contact area of ​​the connection larger, thereby effectively reducing the risk of contact heating; and it can reduce the number of times the copper bar is connected to the terminal, reducing the risk of poor connection, and effectively reducing the material cost of the overall battery module (directly removing the terminal cost). Under the condition of the same capacity, the structure of the present application can be smaller in size and more competitive in product preparation. The structure of the present invention is simple, has good heat dissipation effect, is easy to install, easy to maintain, has good stability, is economical, safe and practical, and can well meet the needs of actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the battery copper busbar output structure of one embodiment of the present utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the internal structure of the battery copper busbar output structure;

[0023] Figure 3 for Figure 2 Schematic diagram of the connection structure of the first copper bar, the second copper bar and the fuse;

[0024] Figure 4 This is a schematic diagram of the internal structure of a battery copper busbar output structure according to another embodiment;

[0025] Figure 5 for Figure 4 Schematic diagram of the connection structure of the first copper bar, the second copper bar and the fuse. DETAILED DESCRIPTION

[0026] The following will be combined with the 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.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] like Figures 1 to 3As shown, the embodiment of the present invention provides a battery copper bar output structure, including a battery case 10, a battery module 20, a plastic end plate 30, a fuse 40, a first copper bar 50, a second copper bar 60 and a third copper bar 70; the battery module 20 is arranged in the battery case 10, and the plastic end plate 30 is arranged on the end surface of one end of the battery case 10; the fuse 40, the first copper bar 50, the second copper bar 60 and the third copper bar 70 are all arranged on the plastic end plate 30;

[0032] One end of the fuse 40 is connected to the first copper bar 50 , and the other end is connected to the second copper bar 60 ; the first copper bar 50 and the third copper bar 70 are respectively connected to the battery module 20 ; the second copper bar 60 is connected to an external terminal.

[0033] The present application adopts a first copper bar 50, a second copper bar 60 and a third copper bar 70 and fixes them on a plastic end plate 30, and then sets the plastic end plate 30 at one end of the box body 10. While realizing the output of the copper bars, it can effectively solve the insulation problem of the fuse connection and facilitate the disassembly, assembly and maintenance of the fuse.

[0034] As a preferred embodiment, the first copper busbar 50 includes a first connecting portion 51, a parallel portion 52, and a second connecting portion 53 that are integrally arranged; the first connecting portion 51 is vertically arranged on one side of the parallel portion 52, and the second connecting portion 53 is vertically arranged at one end of the parallel portion 52, and the first connecting portion 51 and the second connecting portion 53 are vertically arranged.

[0035] As a preferred embodiment, the first connecting portion 51 and the second connecting portion 53 both extend horizontally toward the battery module 20. The first connecting portion 51 is connected to the plastic end plate 30 and the battery module 20, respectively. The parallel portion 52 is fixed to the plastic end plate 30. The second connecting portion 53 is connected to the fuse 40. This arrangement can effectively shorten the connection distance and increase the contact area, thereby effectively reducing the risk of contact heating.

[0036] As a preferred embodiment, the parallel portion 52 is L-shaped; the connection between the first connecting portion 51 and the parallel portion 52, and the connection between the second connecting portion 53 and the parallel portion 52, are both curved. This arrangement effectively shortens the connection distance while ensuring connection stability and contact area, thereby effectively reducing the risk of contact heating.

[0037] As a preferred embodiment, the second copper busbar 60 includes a horizontal portion 61, an arc portion 62, and a vertical portion 63. One side of the arc portion 62 is connected to one side of the vertical portion 63, and the other side of the arc portion 62 is connected to one end of the horizontal portion 61. The vertical portion 63 is connected to the fuse 40, and the horizontal portion 61 is connected to the external terminal. This configuration can effectively shorten the connection distance while ensuring connection stability and contact area, thereby effectively reducing the risk of contact heating.

[0038] As a preferred embodiment, the vertical portion 63 and the horizontal portion 61 are arranged perpendicularly; the vertical portion 63 is arranged in an "L" shape; and the horizontal portion 61 is arranged in a plate shape.

[0039] As a preferred embodiment, a first clamping position (not marked in the figure) for accommodating the first copper bar 50 is provided at one end corner of the plastic end plate 30, and the parallel portion 52 is fixed to the first clamping position by a first insulating column 54;

[0040] The other end corner of the plastic end plate 30 is provided with a second latch (not marked in the figure) for accommodating the second copper bar 60. The second latch is arranged diagonally to the first latch. The transverse portion 61 is fixed to the second latch by a second insulating column 64.

[0041] A third retaining slot (not labeled in the figure) is located at another corner of the plastic end plate 30 to accommodate the third copper bar 70. This retaining slot and the first retaining slot are both located near the same long side of the plastic end plate 30. The third copper bar 70 is secured to the third retaining slot via a third insulating post 71. This arrangement separates the copper bar from the BMU module, increasing the electrical clearance between the copper bar and the module. This ensures efficient heat dissipation while enabling a rational layout of various components, effectively saving space, reducing the volume of the battery case, and effectively increasing the energy density of the battery case.

[0042] As a preferred embodiment, the first copper bar 50 and the second copper bar 60 are both positive copper bars, and the third copper bar 70 is a negative copper bar; the first copper bar 50 is connected to the positive electrode of the battery module 20, and the third copper bar 70 is connected to the negative electrode of the battery module 20.

[0043] As a preferred embodiment, a cooling fan 80 is further provided on the plastic end plate 30, and is arranged diagonally with the third copper busbar 70. This arrangement ensures efficient heat dissipation while achieving a rational layout of various components, thereby effectively saving space, reducing the volume of the battery case, and effectively increasing the energy density of the battery case.

[0044] As a preferred embodiment, the plastic end plate 30 is provided with a notch (not labeled in the figure) extending through the plastic end plate 30. The fuse 40 is secured within the notch via the first copper bar 50 and the second copper bar 60. The notch is adapted to fit the fuse 40, and a first gap 31 is provided between the fuse 40 and the notch. This first gap effectively improves the heat dissipation of the fuse while providing sufficient space for component installation, thereby saving space in the box and reducing the volume of the box.

[0045] As a preferred embodiment, the plastic end plate 30 is fixed to the end surface of the battery box 10 by a plurality of insulating bolts 32 ; the plurality of insulating bolts 32 are evenly arranged on the edge of the plastic end plate 30 .

[0046] As a preferred embodiment, Figure 1 As shown, the battery case 10 includes a cover plate 11, a case 12, and a panel 13. The cover plate 11 covers the top of the case 12. The plastic end plate 30 is provided at one end of the case 12 close to the panel 13. The panel 13 covers the side of the plastic end plate 30 away from the battery module 20, and the panel 13 is fixedly connected to the plastic end plate 30. A second gap (not marked in the figure) is provided between the plastic end plate 30 and the cover plate 11; and a third gap is provided between the plastic end plate 30 and the panel 13. The second and third gaps can effectively improve the heat dissipation effect of the fuse body and provide sufficient space for component disassembly and assembly, facilitating the maintenance of electronic components such as the fuse body, thereby reducing maintenance costs.

[0047] In the embodiment of the present application, a plastic part is provided on the side of the fuse close to the battery case 10, and the plastic part is adapted to fit the fuse; the plastic part is provided with a plurality of slots. By providing a slotted plastic part on the side of the fuse close to the case and providing a plurality of slots on the plastic part (effectively increasing the heat dissipation area), the surface of the fuse can be exposed, and the heat dissipated during use can be quickly dissipated, effectively reducing the temperature of the fuse, thereby reducing the heat radiation of the fuse temperature rise to surrounding components, effectively extending the service life of the components, and effectively increasing the secondary use frequency of the fuse, effectively reducing costs.

[0048] As a preferred embodiment, a thermally conductive silicone pad (not labeled in the figure) is provided on the side of the plastic part away from the fuse. The thermally conductive silicone pad is adapted to fit the plastic part and abuts the aluminum heat sink of the battery case 10. By providing thermally conductive silicone on the side of the plastic part close to the case, heat generated by the fuse during use can be quickly dissipated, effectively reducing the fuse's temperature and, in turn, the heat radiation from the fuse's temperature rise to surrounding components, effectively extending the component's service life. This can also effectively increase the fuse's secondary use frequency and reduce costs.

[0049] In this application, by adjusting the positions of the first copper bar 50 and the third copper bar 70, it is possible to adapt to battery boxes with different connection structures. Figures 2 to 3 As shown, in this embodiment, the first copper bar 50 and the second copper bar 60 are diagonally arranged on the plastic end plate. At this time, the first copper bar 50 is arranged at the upper left corner of the plastic end plate 30, and the third copper bar 70 is arranged at the upper right corner of the plastic end plate 30.

[0050] In another embodiment, if Figures 4 and 5 As shown, the first copper bar 50 and the second copper bar 60 are diagonally arranged on the plastic end plate. At this time, the first copper bar 50 is arranged at the upper right corner of the plastic end plate 30, and the third copper bar 70 is arranged at the upper left corner of the plastic end plate 30.

[0051] Unless otherwise specified, the fixing or connection of each component in this application is generally achieved by screws, which is convenient for production and assembly, and also convenient for disassembly and repair when the battery has problems. The utility model has a simple structure, high space utilization, easy installation, good stability, economy and practicality, and has broad application prospects.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A battery copper busbar output structure, characterized in that: The battery box comprises a battery box, a battery module, a plastic end plate, a fuse, a first copper bar, a second copper bar and a third copper bar; the battery module is arranged in the battery box, and the plastic end plate is arranged on the end surface of one end of the battery box; the fuse, the first copper bar, the second copper bar and the third copper bar are all arranged on the plastic end plate; One end of the fuse is connected to the first copper bar, and the other end is connected to the second copper bar; the first copper bar and the third copper bar are connected to the battery module respectively; the second copper bar is connected to the external terminal.

2. The battery copper busbar output structure according to claim 1, characterized in that: The first copper busbar includes a first connecting portion, a parallel portion, and a second connecting portion that are integrally arranged; the first connecting portion is vertically arranged on one side of the parallel portion, the second connecting portion is vertically arranged on one end of the parallel portion, and the first connecting portion and the second connecting portion are vertically arranged.

3. The battery copper busbar output structure according to claim 2, characterized in that: The first connecting portion and the second connecting portion are both horizontally extended toward the battery module; the first connecting portion is connected to the plastic end plate and the battery module respectively, the parallel portion is fixed to the plastic end plate, and the second connecting portion is connected to the fuse.

4. The battery copper busbar output structure according to claim 2, characterized in that: The parallel portion is arranged in an "L" shape; the connection between the first connecting portion and the parallel portion, and the connection between the second connecting portion and the parallel portion are both provided with an arc.

5. The battery copper busbar output structure according to claim 2, characterized in that: The second copper busbar includes a horizontal portion, an arc portion and a vertical portion; one side of the arc portion is connected to one side of the vertical portion, and the other side of the arc portion is connected to one end of the horizontal portion; the vertical portion is connected to the fuse, and the horizontal portion is connected to the external terminal.

6. The battery copper busbar output structure according to claim 5, characterized in that: The vertical portion and the horizontal portion are arranged perpendicularly; the vertical portion is arranged in an "L" shape; and the horizontal portion is arranged in a plate shape.

7. The battery copper busbar output structure according to claim 5, characterized in that: A first clamping position for accommodating the first copper bar is provided at one end corner of the plastic end plate, and the parallel portion is fixed to the first clamping position via a first insulating column; The other end corner of the plastic end plate is provided with a second clamping position for accommodating the second copper bar, and the second clamping position is arranged diagonally to the first clamping position; the transverse portion is fixed to the second clamping position by a second insulating column; A third clamping position for accommodating the third copper bar is provided at another end corner of the plastic end plate. The third clamping position and the first clamping position are both provided close to the same long side of the plastic end plate. The third copper bar is fixed to the third clamping position through a third insulating column.

8. The battery copper busbar output structure according to claim 1, characterized in that: The first copper bar and the second copper bar are both positive copper bars, and the third copper bar is a negative copper bar; the first copper bar is connected to the positive electrode of the battery module, and the third copper bar is connected to the negative electrode of the battery module; A heat dissipation fan is also provided on the plastic end plate, and the heat dissipation fan is arranged diagonally to the third copper bar.

9. The battery copper busbar output structure according to claim 1, characterized in that: The plastic end plate is provided with a notch penetrating the plastic end plate, and the fuse is fixed in the notch via the first copper bar and the second copper bar; the notch is adapted to fit the fuse, and a first gap is provided between the fuse and the notch; The plastic end plate is fixed to the end surface of the battery box through a plurality of insulating bolts; and the plurality of insulating bolts are evenly arranged on the edge of the plastic end plate.

10. The battery copper busbar output structure according to claim 1, characterized in that: The battery box includes a cover plate, a box body and a panel, the cover plate covers the top of the box body; the plastic end plate is arranged at one end of the box body close to the panel, the panel covers the side of the plastic end plate away from the battery module, and the panel is fixedly connected to the plastic end plate; a second gap is provided between the plastic end plate and the cover plate; a third gap is provided between the plastic end plate and the panel.

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