Fuse structure convenient for heat dissipation

Abstract

The utility model relates to a fuse structure convenient for heat dissipation, which is suitable for a battery box body and comprises a plastic end plate, a fuse body, a first copper bar, a second copper bar and a third copper bar, the plastic end plate is arranged on the end surface of one end of the battery box body; the plastic end plate is provided with a gap, and the fuse body is fixed in the gap through the first copper bar and the second copper bar. One end of the fuse body is connected with the first copper bar, and the other end of the fuse body is connected with the second copper bar; the first copper bar and the third copper bar are respectively connected with a battery module in the battery box body; and the second copper bar is connected with an external terminal. The fuse is simple in structure, good in heat dissipation effect, capable of effectively improving the secondary use frequency of the fuse, convenient to install and maintain, good in stability, economical, safe and practical, and capable of well meeting 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 fuse structure that is convenient for heat dissipation. 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 for these products are also becoming increasingly demanding. In the current market, many fuses within modules are cooled by natural cooling. After use, the fuses reach very high temperatures, making it difficult to quickly reduce them through natural cooling, which limits their secondary use. Furthermore, high-current fuses are relatively expensive, and after sustained high-current discharge, the temperature rise is high, radiating to surrounding structures and electronic components, thereby reducing the lifespan of these components. Furthermore, fuses are typically located within the module structure, making disassembly and maintenance cumbersome and inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a fuse structure that is easy to dissipate heat, so as to solve the technical problems of existing fuses such as slow cooling speed after use, making it difficult to use them again, high temperature after discharge affecting surrounding structures and electronic components, and troublesome disassembly and maintenance.

[0005] To achieve the above objectives, the present invention provides a fuse structure that facilitates heat dissipation and is suitable for use in a battery case. The fuse structure includes a plastic end plate, a fuse body, a first copper bar, a second copper bar, and a third copper bar. The plastic end plate is disposed on an end surface of one end of the battery case. A notch is provided on the plastic end plate, and the fuse body is fixed in the notch via the first copper bar and the second copper bar.

[0006] One end of the fuse body 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 respectively connected to the battery modules in the battery box; the second copper bar is connected to the external terminal.

[0007] As a preferred embodiment, the notch is provided through the plastic end plate, the notch is adapted to fit the fuse body, and a first gap is provided between the fuse body and the notch.

[0008] As a preferred embodiment, a plastic part is provided on the side of the fuse body close to the battery box, and the plastic part is adapted to fit the fuse body; and a plurality of slots are provided on the plastic part.

[0009] As a preferred embodiment, the slots are strip-shaped slots; a plurality of the slots are arranged parallel to each other; and the thickness of the plastic part is 1.8 mm to 2.5 mm, preferably 2 mm.

[0010] As a preferred embodiment, a thermally conductive silicone pad is provided on the side of the plastic part away from the fuse body, and the thermally conductive silicone pad is adapted to the plastic part; the thermally conductive silicone pad is abutted against the aluminum heat sink of the battery box.

[0011] 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 first copper bar is fixed to the first clamping position via a first insulating column;

[0012] 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 second copper bar is fixed to the second clamping position through a second insulating column.

[0013] As a preferred embodiment, another end corner of the plastic end plate is provided with a third clamping position for accommodating the third copper bar, and the third clamping position and the first clamping position are both arranged close to the same long side of the plastic end plate; the third copper bar is fixed to the third clamping position by a third insulating column.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] The technical solution proposed in the present invention has the following beneficial effects: by fixing the fuse body on the plastic end plate and arranging the plastic end plate at one end of the box, the present application effectively solves the insulation problem of the fuse connection while facilitating the disassembly and maintenance of the fuse. By arranging a slotted plastic part on the side of the fuse close to the box, and arranging thermal conductive silicone on the side of the plastic part close to the box, the heat emitted by the fuse during use can be quickly dissipated, effectively reducing the temperature of the fuse, thereby reducing the heat radiation of the fuse temperature rise to the surrounding components, effectively extending the service life of the components, and at the same time effectively increasing the secondary use frequency of the fuse and effectively reducing costs. The present invention has a simple structure, good heat dissipation effect, easy installation, easy maintenance, good stability, economy, safety and practicality, and can well meet the needs of actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a fuse structure that facilitates heat dissipation according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic structural diagram of a fuse structure for facilitating heat dissipation from another angle;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the fuse structure that is convenient for heat dissipation in use;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure of the battery box;

[0023] Figure 5 A schematic structural diagram of a fuse structure for facilitating heat dissipation in use according to another embodiment;

[0024] Figure 6 for Figure 5 Schematic diagram of the connection structure of the fuse body, the first copper bar and the second copper bar. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] like Figures 1 to 4 As shown, the embodiment of the present invention provides a fuse structure that facilitates heat dissipation and is applicable to a battery box 100, comprising a plastic end plate 10, a fuse body 20, a first copper bar 30, a second copper bar 40, and a third copper bar 50; the plastic end plate 10 is disposed on an end surface of one end of the battery box 100; a notch 11 is provided on the plastic end plate 10, and the fuse body 20 is fixed in the notch 11 via the first copper bar 30 and the second copper bar 40;

[0031] One end of the fuse body 20 is connected to the first copper bar 30, and the other end is connected to the second copper bar 40; the first copper bar 30 and the third copper bar 50 are respectively connected to the battery modules in the battery box 100; the second copper bar 40 is connected to the external terminal.

[0032] The present application fixes the fuse body on the plastic end plate and arranges the plastic end plate at one end of the box body, thereby effectively solving the insulation problem of the fuse connection and facilitating the disassembly, assembly and maintenance of the fuse.

[0033] As a preferred embodiment, the notch 11 is provided through the plastic end plate 10, and the notch 11 is adapted to fit the fuse body 20. A first gap (not marked in the figure) is provided between the fuse body 20 and the notch 11. This first gap not only effectively improves the heat dissipation effect of the fuse body, but also provides sufficient space for component installation, effectively saving space in the box and reducing the volume of the box.

[0034] As a preferred embodiment, a plastic member 60 is provided on the side of the fuse body 20 near the battery case 100. The plastic member 60 is adapted to fit the fuse body 20 and is provided with a plurality of slots 61. By providing a slotted plastic member on the side of the fuse near the case and providing multiple slots on the plastic member (effectively increasing the heat dissipation area), the surface of the fuse is exposed, allowing heat dissipated during use to dissipate quickly, effectively reducing the temperature of the fuse. This in turn reduces the heat radiation from the fuse's temperature rise to surrounding components, effectively extending the service life of the components, and effectively increasing the frequency of secondary use of the fuse, thereby effectively reducing costs.

[0035] In a preferred embodiment, the slots 61 are strip-shaped; multiple slots 61 are arranged parallel to each other; and the thickness of the plastic member 60 is between 1.8 mm and 2.5 mm. Depending on actual use, the thickness can be 1.8 mm, 2 mm, 2.5 mm, etc., with 2 mm being preferred. By controlling the thickness of the plastic member, while ensuring connection stability, better heat dissipation can be achieved, effectively increasing the secondary use frequency of the fuse and reducing costs.

[0036] As a preferred embodiment, a thermally conductive silicone pad (not labeled in the figure) is provided on the side of the plastic component 60 facing away from the fuse body 20. The pad is adapted to fit the plastic component 60 and abuts the aluminum heat sink of the battery case 100. By providing thermally conductive silicone on the side of the plastic component 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 also effectively increases the fuse's reusability and reduces costs.

[0037] As a preferred embodiment, a first clamping position (not marked in the figure) for accommodating the first copper bar 30 is provided at one end corner of the plastic end plate 10, and the first copper bar 30 is fixed to the first clamping position by a first insulating column 31;

[0038] The other corner of the plastic end plate 10 is provided with a second retaining portion (not labeled in the figure) for accommodating the second copper busbar 40, located diagonally opposite the first retaining portion. The second copper busbar 40 is secured to the second retaining portion via a second insulating post 41. This arrangement separates the copper busbar from the BMU module, increasing the electrical clearance between the busbars. 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.

[0039] As a preferred embodiment, a third retaining position (not labeled in the figure) is provided at another corner of the plastic end plate 10 to accommodate the third copper bar 50. The third retaining position and the first retaining position are both located near the same long side of the plastic end plate 10; the third copper bar 50 is secured to the third retaining position via a third insulating post 51. This arrangement separates the copper bar from the module BMU, increasing the electrical clearance between the copper bar and the module. While ensuring efficient heat dissipation, it also enables 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.

[0040] In this application, by adjusting the positions of the first copper bar 30 and the third copper bar 50, it is possible to adapt to battery boxes with different connection structures. Figure 1 As shown, in this embodiment, the first copper bar 30 and the second copper bar 40 are diagonally arranged on the plastic end plate. At this time, the first copper bar 30 is arranged at the upper left corner of the plastic end plate 10, and the third copper bar 50 is arranged at the upper right corner of the plastic end plate 10.

[0041] In another embodiment, Figures 5 and 6As shown, the first copper bar 30 and the second copper bar 40 are diagonally arranged on the plastic end plate. At this time, the first copper bar 30 is arranged at the upper right corner of the plastic end plate 10, and the third copper bar 50 is arranged at the upper left corner of the plastic end plate 10.

[0042] As a preferred embodiment, the first copper bar 30 and the second copper bar 40 are both positive copper bars, and the third copper bar 50 is a negative copper bar; the first copper bar 30 is connected to the positive electrode of the battery module, and the third copper bar 50 is connected to the negative electrode of the battery module.

[0043] As a preferred embodiment, the plastic end plate 10 is further provided with a cooling fan 70, which is arranged diagonally with the third copper busbar 50. This arrangement ensures efficient heat dissipation while achieving a rational layout of various components, thereby effectively saving space, reducing the volume of the battery box, and effectively improving the energy density of the battery box.

[0044] As a preferred embodiment, Figure 4 As shown, the battery box 100 includes a cover plate 101, a box body 102, and a panel 103. The cover plate 101 covers the top of the box body 102. The plastic end plate 10 is provided at one end of the box body 102 close to the panel 103. The panel 103 covers the side of the plastic end plate 10 away from the battery module, and the panel 103 is fixedly connected to the plastic end plate 10. A second gap (not marked in the figure) is provided between the plastic end plate 10 and the cover plate 101; and a third gap is provided between the plastic end plate 10 and the panel 103. 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.

[0045] As a preferred embodiment, the plastic end plate 10 is fixed to the end surface of the battery box 100 by a plurality of insulating bolts 12 ; the plurality of insulating bolts 12 are evenly arranged on the edge of the plastic end plate 10 .

[0046] 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.

[0047] The battery box structure of this application can not only save electricity expenses for users, but also automatically switch to backup power mode during power outages. The system is highly intelligent and can collect operating data in real time and adaptively adjust the operating mode according to the operating status without manual intervention, reducing operation and maintenance costs.

[0048] 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 fuse structure that facilitates heat dissipation, suitable for a battery box, characterized in that: The battery box comprises a plastic end plate, a fuse body, a first copper bar, a second copper bar, and a third copper bar; the plastic end plate is arranged on the end surface of one end of the battery box; a notch is provided on the plastic end plate, and the fuse body is fixed in the notch through the first copper bar and the second copper bar; One end of the fuse body 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 respectively connected to the battery modules in the battery box; the second copper bar is connected to the external terminal.

2. The fuse structure for facilitating heat dissipation according to claim 1, characterized in that: The notch is arranged through the plastic end plate, the notch is adapted to the fuse body, and a first gap is arranged between the fuse body and the notch.

3. The fuse structure for facilitating heat dissipation according to claim 1, characterized in that: A plastic part is provided on the side of the fuse body close to the battery box, and the plastic part is adapted to be arranged with the fuse body; a plurality of slots are provided on the plastic part.

4. The fuse structure for facilitating heat dissipation according to claim 3, characterized in that: The slots are strip-shaped slots; a plurality of the slots are arranged parallel to each other; and the thickness of the plastic part is 1.8 mm to 2.5 mm.

5. The fuse structure for facilitating heat dissipation according to claim 3, characterized in that: A heat-conducting silicone pad is provided on the side of the plastic part away from the fuse body, and the heat-conducting silicone pad is adapted to the plastic part; the heat-conducting silicone pad is abutted against the aluminum heat sink of the battery box.

6. The fuse structure for facilitating heat dissipation according to claim 1, 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 first copper bar 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 second copper bar is fixed to the second clamping position through a second insulating column.

7. The fuse structure for facilitating heat dissipation according to claim 6, characterized in that: 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 fuse structure for facilitating heat dissipation 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.

9. The fuse structure for facilitating heat dissipation according to claim 1, characterized in that: 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.

10. The fuse structure for facilitating heat dissipation according to claim 1, characterized in that: The battery box includes a cover plate, a box body, and a panel, wherein 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, and 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; and a third gap is provided between the plastic end plate and the panel. 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.

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