Fuse and energy storage equipment

Abstract

The utility model discloses a fuse and an energy storage device, and relates to the technical field of energy storage devices, the fuse comprises two groups of clamp spring assemblies and a fuse body, the two groups of clamp spring assemblies are respectively arranged at two ends of the fuse body; according to the utility model, the installation mode of the fuse body is optimized, the clamping structure is utilized to replace the existing bolt connection, the fuse body is convenient to disassemble, assemble and replace, the bolt does not need to be disassembled and assembled repeatedly, the maintenance time is shortened, and the maintenance efficiency is improved. And the maintenance efficiency of the fuse is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of fuse technology, and in particular to a fuse and energy storage device. Background Technology

[0002] With the rapid development of the new energy industry, clean energy technologies such as new energy vehicles and lithium battery energy storage have been widely applied and promoted. Especially in the energy storage industry, fuses, as a key circuit protection device, play a crucial role. When the current exceeds a specified value, the fuse element melts due to the heat generated by the fuse itself, quickly disconnecting the circuit and preventing damage to equipment due to overcurrent or short circuit. Fuses are widely used in high and low voltage power distribution systems, control systems, and various electrical equipment to ensure the safe and stable operation of the system.

[0003] When a fuse blows due to overload or short circuit, it usually needs to be replaced to restore power to the circuit. Most existing fuses use bolts to connect the fuse tabs to the mounting components. While this structure is robust, the replacement process is cumbersome and time-consuming without specialized tools, thus affecting maintenance efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a fuse and energy storage device that uses a snap-fit ​​structure to replace bolt connections, making disassembly and assembly more convenient and solving the technical problem of low maintenance efficiency of fuses.

[0005] To achieve the above objectives, this utility model provides a fuse, including two sets of snap ring assemblies and a fuse body. The two sets of snap ring assemblies are respectively located at both ends of the fuse body. Each set of snap ring assemblies is provided with an elastic clamp, which is engaged with the tabs of the fuse body.

[0006] In some embodiments, the snap ring assembly includes:

[0007] The snap ring body includes a sliding retaining plate;

[0008] A fixed base is provided, and a guide plane is provided on the top of the fixed base. The guide plane is provided with a limiting slot. The guide plane is used to guide the sliding plate to slide into the limiting slot. The limiting slot restricts the movement of the snap ring body along the first direction through the sliding plate.

[0009] A limiting component is provided between the fixed base and the snap ring body; when the sliding plate slides completely into the limiting slot along the guide plane, the two ends of the limiting component and the snap ring component abut against each other to restrict the snap ring body from moving relative to the fixed base in the second direction.

[0010] The first direction and the second direction are perpendicular to each other.

[0011] In some embodiments, the elastic clamp includes a support plate and two U-shaped spring pieces symmetrically disposed on both sides of the support plate, with the free ends of the two U-shaped spring pieces facing each other. The elastic clamp is formed with an elastic slot for clamping the tabs, and the elastic slot is formed between the free ends of the two U-shaped spring pieces.

[0012] In some embodiments, the support plate is integrally disposed at the end of the sliding plate along the second direction; the thickness of the support plate is equal to the thickness of the sliding plate, and the width of the support plate is less than the width of the sliding plate.

[0013] In some embodiments, the two U-shaped springs have equal heights and equal widths; each U-shaped spring includes:

[0014] The first plate is perpendicularly connected to the supporting plate;

[0015] The second plate is parallel to the first plate and maintains a set distance from the supporting plate;

[0016] The C-shaped arc plate is integrally connected between the first plate and the second plate, and the C-shaped arc plate protrudes in a direction away from the supporting plate.

[0017] In some embodiments, the limiting component includes:

[0018] The limiting tooth is fixed to the guide plane;

[0019] The limiting groove is located at the end of the sliding plate away from the elastic clamp, and the limiting groove abuts against the limiting protrusion.

[0020] In some embodiments, the limiting component includes:

[0021] A limit hook is fixed to the end of the fixed base away from the limit protrusion;

[0022] The limiting groove is located at the end of the elastic clamp away from the sliding plate, and the limiting groove engages with the limiting hook.

[0023] In some embodiments, connecting ears are fixed on both sides of the fixed base, connecting bolts are passed through the connecting ears, and a reinforcing plate is provided between the connecting ears and the fixed base.

[0024] In some embodiments, the fixed base is fixed to the metal mounting plate by means of connecting bolts, and an isolation plate is fixed at one end of the fixed base near the elastic clamp. The isolation plate is used to isolate the conductive components of the fuse body and the metal mounting plate.

[0025] In some embodiments, the sliding plate is provided with a clearance through hole, the fixed base is embedded with a fixing nut, and a fastening bolt for fixing to the copper busbar is passed through the clearance through hole. The fastening bolt is locked and fixed in the fixing nut.

[0026] This invention also provides an energy storage device, including the aforementioned fuse.

[0027] Compared with the prior art, this utility model optimizes the installation method of the fuse body. Two sets of spring clip assemblies are provided at both ends of the fuse body. Each set of spring clip assemblies has an elastic clamp, which is connected to the electrode lug of the fuse body, replacing the existing bolt connection. This facilitates the disassembly and replacement of the fuse body, eliminates the need for repeated bolt disassembly and replacement, shortens maintenance time, and effectively improves the maintenance efficiency of the fuse. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 An exploded view of the fuse provided in this embodiment of the utility model;

[0030] Figure 2 for Figure 1 Schematic diagram of the middle retaining ring assembly;

[0031] Figure 3 for Figure 2 Another view;

[0032] Figure 4 for Figure 2 Exploded view;

[0033] Figure 5 for Figure 4 Another exploded view;

[0034] Figure 6 for Figure 1 A schematic diagram of the fuse body in the diagram.

[0035] The attached figures are labeled as follows:

[0036] Snap ring assembly 1 and fuse body 2;

[0037] Snap ring body 11, fixed base 12 and limiting assembly 13;

[0038] Sliding plate 111 and elastic clamp 112;

[0039] Avoid through hole 1111;

[0040] 1121 flexible bayonet, 1122 support plate and 1123 U-shaped spring sheet;

[0041] First flat plate 11221, second flat plate 11222 and C-shaped arc plate 11223;

[0042] Guide plane 121, limiting slot 122, connecting ear 123, reinforcing plate 124, isolation plate 125 and fixing nut 126;

[0043] Limiting tooth 131, limiting groove 132, limiting hook 133, and limiting groove 134;

[0044] Extreme Ear 21. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] This utility model discloses a fuse, as shown in the attached figure. Figure 1 As shown, the fuse includes two sets of snap ring assemblies 1 and a fuse body 2. The two sets of snap ring assemblies 1 are respectively located at both ends of the fuse body 2. Each set of snap ring assemblies 1 is provided with an elastic clamp 112, which is engaged with the electrode lug 21 of the fuse body 2, so that the two sets of snap ring assemblies 1 together support the fuse body 2. Specifically, as shown in the attached figure... Figure 6 As shown, each end of the fuse body 2 is provided with a tab 21, and the material of the tab 21 can be copper sheet.

[0048] This utility model optimizes the installation method of the fuse body. Two sets of spring clip assemblies are provided at both ends of the fuse body. Each set of spring clip assemblies has an elastic clamp, which is connected to the electrode lug of the fuse body, replacing the existing bolt connection. This facilitates the disassembly and replacement of the fuse body without the need for repeated bolt disassembly and assembly, shortens maintenance time, and effectively improves the maintenance efficiency of the fuse.

[0049] As a preferred embodiment, as shown in the appendix Figures 2 to 5 As shown, the snap ring assembly 1 includes a snap ring body 11, a fixed base 12, and a limiting assembly 13.

[0050] The snap ring body 11 includes a sliding snap plate 111. The top of the fixed base 12 is provided with a guide plane 121, and the guide plane 121 is provided with a limiting snap groove 122. The guide plane 121 is used to guide the sliding snap plate 111 to slide into the limiting snap groove 122. The limiting snap groove 122 restricts the snap ring body 11 from moving along a first direction through the sliding snap plate 111. As a preferred embodiment, L-shaped snap bars are integrally fixed on two opposite sides of the top of the fixed base 12. The L-shaped snap bars and the guide plane 121 form the limiting snap groove 122. The height of the limiting snap groove 122 is equal to the thickness of the sliding snap plate 111, the length of the limiting snap groove 122 is greater than the length of the sliding snap plate 111, and the width of the limiting snap groove 122 is equal to the width of the sliding snap plate 111.

[0051] The limiting component 13 is disposed between the fixed base 12 and the snap ring body 11; when the sliding plate 111 slides completely into the limiting slot 122 along the guide plane 121, the limiting component 13 abuts against both ends of the snap ring component 1, thereby restricting the snap ring body 11 from moving relative to the fixed base 12 in the second direction. As a preferred embodiment, two sets of limiting components 13 are specifically provided, and the two sets of limiting components 13 abut against both ends of the snap ring body 11 respectively.

[0052] The first direction and the second direction are perpendicular to each other. It should be noted that the first direction in the text refers to the width direction of the fixed base 12, and the second direction refers to the length direction of the fixed base 12.

[0053] This invention optimizes the structure of the snap ring assembly 1 of the fuse. On the one hand, the limiting slot 122 restricts the snap ring body 11 from moving in the first direction, thus initially constraining the snap ring body 11. On the other hand, the limiting component 13 restricts the snap ring body 11 from moving in the second direction, ensuring that the snap ring body 11 is reliably fixed to the fixed base 12. During installation, simply push the sliding plate 111 into the limiting slot 122 and then press down the snap ring body 11 against the limiting component 13 to fix the snap ring body 11. During disassembly, simply lift the snap ring body 11 to disengage it from the limiting component 13 and then pull the sliding plate 111 out of the limiting slot 122 to disassemble the snap ring body 11.

[0054] In a preferred embodiment, the elastic clamp 112 is M-shaped and includes a support plate 1122 and two U-shaped spring pieces 1123 symmetrically disposed on both sides of the support plate 1122. The free ends of the two U-shaped spring pieces 1123 face each other. The elastic clamp 112 has an elastic slot 1121 for clamping the tab 21. The elastic slot 1121 is formed between the free ends of the two U-shaped spring pieces 1123 to ensure that the elastic clamp 112 has sufficient elastic force to clamp the ceramic tube. Of course, the structure of the elastic clamp 112 is not limited to this.

[0055] More specifically, the support plate 1122 is integrally disposed at the end of the sliding plate 111 along the second direction. The support plate 1122 and the sliding plate 111 can be integrally stamped, which is convenient for processing and helps to simplify the assembly steps. The thickness of the support plate 1122 is equal to the thickness of the sliding plate 111, and the width of the support plate 1122 is less than the width of the sliding plate 111.

[0056] In a preferred embodiment, the two U-shaped springs 1123 have equal heights and equal widths. Each U-shaped spring 1123 includes a first plate 11221, a second plate 11222, and a C-shaped arc plate 11223. The first plate 11221 is perpendicularly connected to the supporting plate 1122. The second plate 11222 is parallel to the first plate 11221 and maintains a set distance from the supporting plate 1122. The C-shaped arc plate 11223 is integrally connected between the first plate 11221 and the second plate 11222, and the C-shaped arc plate 11223 protrudes away from the supporting plate 1122, ensuring that the U-shaped spring 1123 clamps the ceramic tube. When clamping the ceramic tube, the second plate 11222 moves closer to the first plate 11221, and the U-shaped spring 1123 undergoes elastic deformation.

[0057] In a preferred embodiment, the limiting component 13 includes a limiting protrusion 131 and a limiting groove 132. The limiting protrusion 131 is fixed to the guide plane 121, and the limiting groove 132 is located at the end of the sliding plate 111 away from the elastic clamp 112. The limiting groove 132 and the limiting protrusion 131 abut against each other, so that the limiting component 13 fixes one end of the snap ring body 11 by a snap-fit ​​connection. The limiting protrusion 131 is a rectangular protrusion integrally provided on the top of the fixed base plate, and the height of the limiting protrusion 131 is equal to the thickness of the sliding plate 111.

[0058] In a preferred embodiment, the limiting component 13 includes a limiting hook 133 and a limiting groove 134. The limiting hook 133 is fixed to the end of the fixed base 12 away from the limiting protrusion 131, and the limiting groove 134 is located at the end of the elastic clamp 112 away from the sliding plate 111. The limiting groove 134 and the limiting hook 133 engage with each other, so that the limiting component 13 can fix the other end of the snap ring body 11 by a snap connection.

[0059] Connecting ears 123 are fixed on both sides of the fixed base 12. Each connecting ear 123 has a fixing hole, and a connecting bolt passes through the fixing hole to fix the fixed base 12. A reinforcing plate 124 is provided between the connecting ear 123 and the fixed base 12 to improve the connection strength of the connecting ear 123.

[0060] The fixed base 12 is fixed to the metal mounting plate by means of connecting bolts. An isolation plate 125 is fixed at one end of the fixed base 12 near the elastic clamp 112 to isolate the conductive components of the fuse body 2 from the metal mounting plate, so as to avoid short circuit caused by the conductive components being too close to the metal mounting plate.

[0061] The sliding plate 111 is provided with a clearance through hole 1111. The fixed base 12 is a plastic part. The fixed base 12 is embedded with a fixed nut 126. A fastening bolt is inserted in the clearance through hole 1111 for fixing to the copper busbar. The fastening bolt is locked and fixed in the fixed nut 126 to fix the copper busbar.

[0062] This utility model embodiment also discloses an energy storage device, including the above-mentioned fuse.

[0063] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0064] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A fuse, characterized in that, It includes two sets of snap ring assemblies (1) and a fuse body (2). The two sets of snap ring assemblies (1) are respectively located at both ends of the fuse body (2). Each set of snap ring assemblies (1) is provided with an elastic clamp (112), which is engaged with the tab (21) of the fuse body (2).

2. The fuse according to claim 1, characterized in that, The snap ring assembly (1) includes: The snap ring body (11) includes a sliding snap plate (111). A fixed base (12) is provided with a guide plane (121) on its top. The guide plane (121) is provided with a limiting slot (122). The guide plane (121) is used to guide the sliding plate (111) to slide into the limiting slot (122). The limiting slot (122) restricts the movement of the snap ring body (11) along the first direction through the sliding plate (111). A limiting component (13) is disposed between the fixed base (12) and the snap ring body (11); when the sliding plate (111) slides completely into the limiting slot (122) along the guide plane (121), the limiting component (13) abuts against the two ends of the snap ring assembly (1) to restrict the snap ring body (11) from moving relative to the fixed base (12) in the second direction; Wherein, the first direction and the second direction are perpendicular to each other.

3. The fuse according to claim 2, characterized in that, The elastic clamp (112) includes a support plate (1122) and two U-shaped spring pieces (1123) symmetrically arranged on both sides of the support plate (1122). The free ends of the two U-shaped spring pieces (1123) are opposite to each other. The elastic clamp (112) is formed with an elastic slot (1121) for clamping the tab (21). The elastic slot (1121) is formed between the free ends of the two U-shaped spring pieces (1123).

4. The fuse according to claim 3, characterized in that, The support plate (1122) is integrally disposed at the end of the sliding plate (111) along the second direction; the thickness of the support plate (1122) is equal to the thickness of the sliding plate (111), and the width of the support plate (1122) is less than the width of the sliding plate (111).

5. The fuse according to claim 3, characterized in that, The two U-shaped spring pieces (1123) have the same height and the same width; each U-shaped spring piece (1123) includes: The first plate (11221) is perpendicularly connected to the supporting plate (1122); The second plate (11222) is parallel to the first plate (11221) and maintains a set distance from the supporting plate (1122). C-shaped arc plate (11223) is integrally connected between the first plate (11221) and the second plate (11222), and the C-shaped arc plate (11223) protrudes in a direction away from the supporting plate (1122).

6. The fuse according to any one of claims 2 to 5, characterized in that, The limiting component (13) includes: A limiting tooth (131) is fixed to the guide plane (121). A limiting groove (132) is provided at one end of the sliding plate (111) away from the elastic clamp (112), and the limiting groove (132) abuts against the limiting protrusion (131).

7. The fuse according to claim 6, characterized in that, The limiting component (13) includes: A limiting hook (133) is fixed to the end of the fixed base (12) away from the limiting protrusion (131); A limiting groove (134) is provided at one end of the elastic clamp (112) away from the sliding plate (111), and the limiting groove (134) engages with the limiting hook (133).

8. The fuse according to any one of claims 2 to 5, characterized in that, Connecting ears (123) are fixed on both sides of the fixed base (12), and connecting bolts are passed through the connecting ears (123). A reinforcing plate (124) is provided between the connecting ears (123) and the fixed base (12).

9. The fuse according to claim 8, characterized in that, The fixed base (12) is fixed to the metal mounting plate by means of the connecting bolt. An isolation plate (125) is fixed to one end of the fixed base (12) near the elastic clamp (112). The isolation plate (125) is used to isolate the conductive components of the fuse body (2) and the metal mounting plate.

10. The fuse according to any one of claims 2 to 5, characterized in that, The sliding plate (111) is provided with a clearance through hole (1111), and the fixed base (12) is embedded with a fixed nut (126). A fastening bolt for fixing to the copper busbar is passed through the clearance through hole (1111), and the fastening bolt is locked and fixed in the fixed nut (126).

11. An energy storage device, characterized in that, Includes the fuse as described in any one of claims 1 to 10.

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