Fuse support, fuse assembly and battery pack

Abstract

The utility model discloses a fuse support, a fuse assembly and a battery pack, the fuse support is used for accommodating a fuse, the fuse support comprises an insulating base and an insulating cover body, the insulating base is provided with two electrode connecting parts, the two electrode connecting parts are opposite to each other at intervals along a first direction, the electrode connecting parts are used for being connected with electrodes of the fuse, and the insulating cover body is arranged on the insulating base. The insulating cover body is connected to the insulating base to form a first containing cavity, the first containing cavity is located between the two electrode connecting parts and used for containing a fuse, and the two opposite sides of the insulating cover body in the first direction are each provided with a protruding structure extending in the direction away from the first containing cavity. The two protruding structures cover the two electrode connecting parts in a one-to-one correspondence mode, one end of each protruding structure extends to the side, away from the first containing cavity, of the corresponding electrode connecting part, and the fuse support can avoid the situation that electrical gaps between the electrodes of the fuse and other adjacent structures are insufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a fuse holder, a fuse assembly and a battery pack. Background Art

[0002] A fuse is an electronic component used for overload protection inside a battery pack. When the current flowing through the fuse exceeds the tolerance value of the fuse, the fuse can generate heat and melt itself by generating heat, so that the circuit is opened.

[0003] In order to make the energy density of the battery pack relatively large, the structure of the battery pack is usually relatively compact. Therefore, when the fuse is installed in the battery pack, other battery pack components are often arranged near the fuse. During the use of the battery pack, the battery pack is likely to be deformed due to being impacted or vibrated, and then the problem that the electrical clearance between the electrodes of the fuse and other adjacent battery pack components is insufficient is likely to occur, and in severe cases, safety accidents of the battery pack will occur. Summary of the Utility Model

[0004] The first object of the utility model is to provide a fuse holder, which can avoid the situation that the electrical clearance between the electrodes of the fuse and other adjacent structures is insufficient.

[0005] The second object of the utility model is to provide a fuse assembly. By using the aforementioned fuse holder to accommodate the fuse, the electrical clearance between the electrodes of the fuse and other adjacent structures can meet the requirements during use.

[0006] The third object of the utility model is to provide a battery pack. By using the aforementioned fuse assembly, the electrical clearance between the electrodes of the fuse and other adjacent battery pack components can meet the requirements during use, avoiding safety accidents, and the battery pack has good use safety.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] In the first aspect, a fuse holder is provided for accommodating a fuse. The fuse holder includes:

[0009] An insulating base having two electrode connection parts which are spaced opposite to each other in a first direction, and the electrode connection parts are used for connecting to the electrodes of the fuse; and,

[0010] An insulating cover body, which is connected to the insulating base to form a first accommodating cavity. The first accommodating cavity is located between the two electrode connection parts, and the first accommodating cavity is used to accommodate the fuse. On two opposite sides of the insulating cover body in the first direction, there are protruding structures extending in a direction away from the first accommodating cavity. The two protruding structures respectively cover the two electrode connection parts in a one-to-one correspondence, and one end of the protruding structure extends to the side of the corresponding electrode connection part facing away from the first accommodating cavity.

[0011] As a preferred technical solution of the fuse holder, in the first direction, the protruding size of the protruding structure protruding from the corresponding electrode connection part is d, and 11.84mm ≤ d.

[0012] As a preferred technical solution of the fuse holder, the edge of the protruding structure is convexly provided with a thin-walled structure in a direction close to the insulating base.

[0013] As a preferred technical solution of the fuse holder, the insulating cover body and the protruding structure are integrally formed.

[0014] As a preferred technical solution of the fuse holder, at least part of the protruding structure is an inclined plate structure, and the inclined plate structure inclines close to the insulating base in a direction away from the first accommodating cavity.

[0015] As a preferred technical solution of the fuse holder, the insulating cover body includes two separately arranged sub-cover bodies. The two sub-cover bodies are arranged at intervals in the first direction, and the two sub-cover bodies are connected to the insulating base to form the first accommodating cavity between the two sub-cover bodies and the insulating base. The two sub-cover bodies are respectively provided with the protruding structures in a one-to-one correspondence.

[0016] As a preferred technical solution of the fuse holder, the fuse holder further includes a first metal fastener, and the first metal fastener is detachably connected to the electrode connection part.

[0017] As a preferred technical solution of the fuse holder, the surface of the insulating base is also convexly provided with a reinforcing rib, and at least part of the reinforcing rib is located in the first accommodating cavity; and / or,

[0018] The insulating base is provided with a buckling part, and the buckling part is detachably buckled to the insulating cover body. The buckling part is located on the surface of the insulating base facing away from the first accommodating cavity; and / or,

[0019] The insulating base also includes a first thin plate structure and two second thin plate structures, wherein the first thin plate structure is respectively connected to the electrode connecting portion at two opposite sides along the first direction, the second thin plate structure extends toward the insulating cover along the second direction, and the two second thin plate structures are spaced and arranged at two opposite sides of the first thin plate structure along the third direction, and a recess is provided on one side of the second thin plate structure close to the insulating cover, and the recess is connected to the first accommodating cavity and the outside of the fuse holder, wherein the second direction is the arrangement direction of the insulating base and the insulating cover, and the first direction, the second direction and the third direction are perpendicular to each other.

[0020] As a preferred technical solution of the fuse holder, the fuse holder also includes a metal frame, which includes a first part and a second part connected at an angle, the first part is stacked and connected to the side of the insulating base facing away from the insulating cover, and the second part is located on the side of an adjacent protruding structure facing away from another protruding structure.

[0021] As a preferred technical solution of the fuse holder, the insulating base includes a base body and two insulators, the base body has the first accommodating cavity, the base body also has two frame connecting parts respectively located at two opposite sides of the first accommodating cavity, and the insulator has the electrode connecting part;

[0022] The fuse holder also includes a metal frame, on which two second metal fasteners are spaced apart, the two second metal fasteners are correspondingly penetrated through the two frame connection parts, and one end of the second metal fastener away from the metal frame is connected to one end of the insulator away from the electrode connection part.

[0023] In a second aspect, a fuse assembly is provided, comprising a fuse and a fuse holder as described in the first aspect, wherein the fuse is located in a first accommodating cavity of the fuse holder, and two electrodes of the fuse are respectively connected to two electrode connecting portions of the fuse holder.

[0024] In a third aspect, a battery pack is provided, comprising a battery box, a battery, and the fuse assembly as described in the second aspect, wherein the battery box has a second accommodating cavity, the battery and the fuse assembly are both arranged in the second accommodating cavity, and the insulating base of the fuse assembly is connected to the cavity wall of the second accommodating cavity, and the two connecting copper bars of the battery are respectively connected to the two electrodes of the fuse assembly.

[0025] The beneficial effects of the utility model are:

[0026] By providing a protruding structure on the insulating cover body, and one end of the protruding structure extends to the side of the corresponding electrode connection part facing away from the first accommodation cavity. In other words, along the first direction, the protruding structure protrudes from the corresponding electrode connection part. Thus, when the battery box is impacted or vibrated, causing the electrode of the fuse to approach other battery pack components adjacent in the first direction, the protruding structure can be used to abut against other battery pack components to prevent the gap between the electrode of the fuse and the adjacent other battery pack components from further decreasing. Furthermore, the electrical clearance between the electrode of the fuse and the adjacent other battery pack components can be maintained in a state that meets the requirements. Description of the Drawings

[0027] The present utility model will be further described in detail below with reference to the drawings and embodiments.

[0028] Figure 1 Schematic perspective view of the fuse holder according to the embodiment.

[0029] Figure 2 Schematic cross-sectional perspective view of the fuse holder according to the embodiment.

[0030] Figure 3 Schematic exploded perspective view of the fuse holder according to the embodiment.

[0031] Figure 4 Schematic exploded perspective view of the insulating base, metal frame, and second metal fastener according to the embodiment.

[0032] Figure 5 Top view of the fuse assembly (when connected with a connecting copper bar) according to the embodiment.

[0033] Figure 6 For Figure 5 Cross-sectional view taken along line A - A in

[0034] Figure 7 For Figure 6 Enlarged view at N in

[0035] Figure 8 Schematic exploded perspective view of the fuse assembly according to the embodiment.

[0036] Figure 9 Schematic cross-sectional view of the battery pack according to the embodiment.

[0037] In the figure:

[0038] 100, fuse assembly;

[0039] 1. Fuse holder; 10. Insulating base; 101. Base body; 1010. Reinforcing rib; 1011. First thin plate structure; 1012. Second thin plate structure; 1012a. Depression; 1013. Buckling part; 101a. First accommodating cavity; 101b. Frame body connecting part; 101c. Second connecting hole; 102. Insulator; 102a. Electrode connecting part; 102b. First connecting hole; 102c. Third connecting hole; 11. Insulating cover body; 110. Sub-cover body; 12. Protruding structure; 121. Thin wall structure; 122. Inclined plate structure; 13. First metal fastener; 130. Connecting part; 131. Head; 14. Metal frame body; 141. First part; 142. Second part; 15. Second metal fastener;

[0040] 2. Fuse; 21. Electrode;

[0041] 200. Battery box; 200a. Second accommodating cavity;

[0042] 300. Battery; 300a. Connecting copper bar. Detailed implementation manners

[0043] To make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present utility model clearer, the technical solutions of the embodiments of the present utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0044] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected" and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0046] As Figures 1 to 3 shown, the present utility model provides a fuse holder 1 for accommodating a fuse 2. Specifically, the fuse holder 1 includes an insulating base 10 and an insulating cover 11. The insulating base 10 has a first accommodating cavity 101a for accommodating the fuse 2 (please refer to Figure 5 ), and the insulating base 10 further has two electrode connection portions 102a which are spaced opposite to each other along a first direction S1. The electrode connection portions 102a are used for connecting to the electrodes 21 of the fuse 2 (please refer to Figure 6 ). The insulating cover 11 is connected to the insulating base 10 to form the first accommodating cavity 101a. The first accommodating cavity 101a is located between the two electrode connection portions 102a, and the first accommodating cavity 101a is used for accommodating a part of the fuse 2. On two opposite sides of the insulating cover 11 along the first direction S1, there are provided protruding structures 12 extending in a direction away from the first accommodating cavity 101a. The two protruding structures 12 respectively cover the two electrode connection portions 102a in a one-to-one correspondence, and one end of the protruding structure 12 extends to the side of the corresponding electrode connection portion 102a facing away from the first accommodating cavity 101a. Among them, Figures 1 to 3 the first direction S1 is shown by arrows in both.

[0047] By providing the protruding structures 12 on the insulating cover 11 and making one end of the protruding structure 12 extend to the side of the corresponding electrode connection portion 102a facing away from the first accommodating cavity 101a, in other words, along the first direction S1, the protruding structure 12 protrudes from the corresponding electrode connection portion 102a. Thus, when the battery box 200 is impacted or vibrated, resulting in the electrodes 21 of the fuse 2 approaching other battery pack components adjacent along the first direction S1, the protruding structures 12 can be used to abut against other battery pack components, so as to prevent the gap between the electrodes 21 of the fuse 2 and other battery pack components adjacent along the first direction S1 from further decreasing, and further enable the electrical gap between the electrodes 21 of the fuse 2 and adjacent other battery pack components to be maintained in a state that meets the requirements.

[0048] Under normal circumstances, the electrical clearance between the electrode 21 of the fuse 2 and other adjacent battery pack components needs to be maintained at more than 11.84 mm. Based on this, optionally, in the first direction S1, the protruding dimension d of the protruding structure 12 protruding from the corresponding electrode connection part 102a can satisfy: 11.84 mm ≤ d. Thus, when the electrode 21 of the fuse 2 approaches other adjacent battery pack components, the protruding structure 12 can be used to abut against other battery pack components, so that the distance between the electrode 21 of the fuse 2 and other adjacent battery pack components is maintained greater than or equal to 11.84 mm. Exemplarily, the dimension d can be: 11.84 mm, 11.9 mm, 12 mm, 12.2 mm, 12.5 mm, 13 mm, 14 mm, 15 mm, etc.

[0049] Optionally, a thin-wall structure 121 protrudes along the direction close to the electrode connection part 102a at the edge of the protruding structure 12, so that the edge of the plate surface can be thickened through the thin-wall structure 121 to improve the structural strength of the protruding structure 12, making it not easy to generate a large deformation when the protruding structure 12 abuts against other adjacent structures. Furthermore, the stability of the function of the protruding structure 12 to "keep the electrical clearance between the electrode 21 of the fuse 2 and other adjacent battery pack components within the required range" can be better.

[0050] Optionally, the protruding structure 12 is in a flat plate shape, so that the structure of the protruding structure 12 is relatively thin and light, and the protruding structure 12 can cover the electrode 21 to a certain extent from the side of the electrode 21 away from the electrode connection part 102a, avoiding the side of the electrode 21 away from the electrode connection part 102a from directly contacting other adjacent structures.

[0051] Optionally, the insulating cover 11 and the protruding structure 12 can be integrally formed, so that the connection stability between the insulating cover 11 and the protruding structure 12 is good. Thus, the stability of the function of the protruding structure 12 to maintain the electrical clearance between the electrode 21 of the fuse 2 and other adjacent battery pack components is good, and the number of components included in the fuse holder 1 can be reduced to simplify the installation and use operations of the fuse holder 1.

[0052] It should be noted that the integral molding of the insulating cover 11 and the protruding structure 12 can specifically include but is not limited to: integrally molding the insulating cover 11 and the protruding structure 12 by one-time injection molding, molding the insulating cover 11 on the protruding structure 12 by secondary injection molding, molding the protruding structure 12 on the insulating cover 11 by secondary injection molding, machining the insulating cover 11 and the protruding structure 12 as a whole using the same piece of material, etc.

[0053] In some embodiments, the electrode 21 can be detachably and firmly connected to the electrode connection part 102a through a fastener. At this time, the fastener usually protrudes partially from the side of the electrode 21 facing the protruding structure 12 (i.e., the side of the electrode 21 away from the electrode connection part 102a). Based on this, optionally, the protruding structure 12 is at least partially an inclined plate structure 122, and the inclined plate structure 122 inclines towards the insulating base 10 along the direction away from the first accommodation cavity 101a. That is, the part of the inclined plate structure 122 that is farther away from the insulating cover 11 along the first direction S1 is closer to the insulating base 10 along the second direction S2, where the second direction S2 is the arrangement direction of the insulating base 10 and the insulating cover 11, and the second direction S2 is perpendicular to the first direction S1, where, Figures 1 to 3 the first direction S1 and the second direction S2 are both shown by coordinates.

[0054] Therefore, the setting space between the part of the inclined plate structure 122 closer to the insulating cover 11 and the electrode connection part 102a is larger, which can avoid the fastener protruding from the side of the electrode 21 facing the protruding structure 12. At the same time, the setting space between the part of the inclined plate structure 122 farther away from the insulating cover 11 and the electrode connection part 102a is smaller, so that while making the protruding structure 12 not easily interfere with the fastener and the electrode 21, the overall structure of the fuse holder 1 is more compact, and thus the structure of the battery pack equipped with the fuse holder 1 can be more compact.

[0055] Optionally, the insulating cover 11 can be connected to the insulating base 10 through detachable connection methods including but not limited to snap connection, plug connection, magnetic attraction connection, screw connection, etc. Among them, as Figure 1 shown in Figure 3 and Figure 1 shown in Figure 3 exemplarily shows a specific structure when the insulating cover 11 and the insulating base 10 can be snap-connected. When the insulating cover 11 and the insulating base 10 can be snap-connected, the disassembly and assembly operations of the insulating cover 11 and the insulating base 10 are convenient, and the connection stability between the insulating cover 11 and the insulating base 10 is better.

[0056] Optionally, the insulating cover 11 includes two sub-covers 110 arranged separately. The two sub-covers 110 are arranged at intervals along the first direction S1, and the two sub-covers 110 are respectively detachably connected to the insulating base 10 to form a first accommodation cavity 101a between the two sub-covers 110 and the insulating base 10, so that a part of the outer circumference of the fuse 2 can be exposed at the interval between the two sub-covers 110, which is beneficial to improving the heat dissipation efficiency of the fuse 2 to the external environment. At this time, the two sub-covers 110 are respectively provided with protruding structures 12, that is, one sub-cover 110 is provided with one protruding structure 12.

[0057] When the insulating cover 11 and the protruding structure 12 can be integrally formed as described in the foregoing technical solution, the sub-cover 110 can be integrally formed with the corresponding protruding structure 12.

[0058] Optionally, both the insulating cover 11 and the insulating base 10 can be made of insulating plastic material, so that both the insulating cover 11 and the insulating base 10 can have good insulating properties. At the same time, due to the low density and good plasticity of the insulating plastic, the insulating cover 11 and the insulating base 10 can be lighter in weight, easier to manufacture and form, and easier to be integrally formed.

[0059] Please refer to Figures 2 to 4 , optionally, the surface of the insulating base 10 further protrudes with reinforcing ribs 1010, and at least part of the reinforcing ribs 1010 is located in the first accommodating cavity 101a. Thus, on the one hand, the structural strength of the insulating base 10 can be enhanced by the reinforcing ribs 1010, and on the other hand, by making the reinforcing ribs 1010 located in the first accommodating cavity 101a, the reinforcing ribs 1010 can be spaced between the fuse 2 and the insulating base 10, so that the heat dissipated by the fuse 2 can easily be dissipated to the outside of the insulating base 10 through the gap between the fuse 2 and the insulating base 10, thereby reducing the influence of the heat dissipated by the fuse 2 on the insulating base 10.

[0060] Optionally, the insulating base 10 further includes a first thin plate structure 1011 and two second thin plate structures 1012. The two opposite sides of the first thin plate structure 1011 in the first direction S1 are respectively connected to the electrode connection part 102a. The second thin plate structures 1012 extend towards the insulating cover 11 in the second direction S2, and the two second thin plate structures 1012 are oppositely arranged at intervals on the two opposite sides of the first thin plate structure 1011 in the third direction S3. Thus, the insulating base 10 is mainly composed of thin plate structures, and the structure of the insulating base 10 is lighter and more delicate. Among them, the first direction S1, the second direction S2, and the third direction S3 are perpendicular to each other in pairs. Figures 2 to 4 The first direction S1, the second direction S2, and the third direction S3 are all shown by coordinates.

[0061] Furthermore, a recess 1012a can be provided on the side of the second thin plate structure 1012 close to the insulating cover 11. The recess 1012a communicates with the first accommodating cavity 101a and the outside of the fuse holder 1, so that a part of the outer circumference of the fuse 2 in the first accommodating cavity 101a can be exposed through the recess 1012a, which is beneficial to improving the heat dissipation efficiency of the fuse 2 to the external environment.

[0062] Optionally, the insulating base 10 is provided with a snap-in portion 1013. The snap-in portion 1013 is detachably snap-connected to the insulating cover 11. The snap-in portion 1013 is located on the surface of the insulating base 10 facing away from the first accommodation cavity 101a. Thus, on the one hand, the insulating cover 11 and the insulating base 10 can be detachably snap-connected, and the disassembly and assembly operations of the insulating cover 11 and the insulating base 10 are simple. On the other hand, by arranging the snap-in portion 1013 on the surface of the insulating base 10 facing away from the first accommodation cavity 101a, it can be avoided that the disassembly and assembly operations of the insulating cover 11 and the insulating base 10 affect the fuse 2 inside the first accommodation cavity 101a.

[0063] Optionally, at least two of the following three embodiments can be implemented simultaneously to make the structure of the insulating base 10 more convenient to use: the surface of the insulating base 10 is provided with reinforcing ribs 1010, the surface of the insulating base 10 facing away from the first accommodation cavity 101a is provided with a snap-in portion 1013, and the insulating base 10 further includes a first thin plate structure 1011 and two second thin plate structures 1012. Among them, when the surface of the insulating base 10 is provided with reinforcing ribs 1010 and the insulating base 10 further includes a first thin plate structure 1011 and two second thin plate structures 1012, the surfaces of the first thin plate structure 1011 and the second thin plate structures 1012 facing the inside of the first accommodation cavity 101a can be provided with reinforcing ribs 1010 to strengthen the structural strength of the first thin plate structure 1011 and the second thin plate structures 1012 through the reinforcing ribs 1010, so that while the structure of the insulating base 10 is relatively light, it can have the structural strength to meet the use requirements.

[0064] Please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 7 , optionally, the fuse holder 1 further includes a first metal fastener 13. The first metal fastener 13 is detachably connected to the electrode connection portion 102a for firmly connecting the electrode 21 of the fuse 2 to the electrode connection portion 102a. Since the first metal fastener 13 has good structural strength, it can stably connect the electrode 21 of the fuse 2 to the electrode connection portion 102a.

[0065] Exemplarily, the electrode connection portion 102a may be provided with a first connection hole 102b. The first metal fastener 13 may include a connected connection portion 130 and a head 131. The connection portion 130 is detachably connected to the first connection hole 102b, and the head 131 is used to press the electrode 21 of the fuse 2 between the head 131 and the electrode connection portion 102a to realize firmly connecting the electrode 21 of the fuse 2 to the electrode connection portion 102a. Among them, the connection portion 130 can be detachably connected to the first connection hole 102b by including but not limited to threaded connection, interference fit connection, etc.

[0066] Optionally, the fuse holder 1 further includes a metal frame 14, which is detachably connected to the side of the insulating base 10 facing away from the insulating cover 11. Thus, on the one hand, the structural strength of the insulating base 10 can be enhanced through the metal frame 14. On the other hand, the metal frame 14 and the insulating base 10 can be manufactured separately. In other words, there is no need to adopt the relatively costly method of forming the insulating base 10 by injection molding on the first part 141 to manufacture the metal frame 14 and the insulating base 10, which can reduce the manufacturing cost of the fuse holder 1.

[0067] Optionally, the metal frame 14 includes a first part 141 and a second part 142 connected at an angle. The first part 141 is stacked and connected to the side of the insulating base 10 facing away from the insulating cover 11, and the second part 142 is located on the side of an adjacent protruding structure 12 facing away from the other protruding structure 12. Thus, the second part 142 can be used to connect to an external structure, so that the fuse holder 1 can be connected to the external structure in a suspended posture, making it easier for the electrode 21 of the fuse holder 1 to maintain a certain electrical clearance from adjacent other structures.

[0068] Exemplarily, a through hole may be provided in the second part 142 for a threaded fastener to pass through, so as to connect the second part 142 to an external structure through the threaded fastener.

[0069] Optionally, the insulating base 10 includes a base body 101 and two insulators 102. The base body 101 has a first accommodation cavity 101a, and the base body 101 also has two frame connection parts 101b located on two opposite sides of the first accommodation cavity 101a respectively. The insulator 102 has an electrode connection part 102a. Two second metal fasteners 15 are spaced on the metal frame 14, and the two second metal fasteners 15 pass through the two frame connection parts 101b in a one-to-one correspondence. And the end of the second metal fastener 15 away from the metal frame 14 is connected to the end of the insulator 102 away from the electrode connection part 102a. Thus, the metal frame 14, the frame connection part 101b, and the insulator 102 can be firmly connected to each other through the second metal fastener 15. Since the structural strength of the second metal fastener 15 is relatively good, the metal frame 14, the frame connection part 101b, and the insulator 102 can be firmly connected to each other relatively stably.

[0070] When, as described in the foregoing technical solution, the insulating base 10 further includes a first thin plate structure 1011 and two second thin plate structures 1012, the base body 101 may include the first thin plate structure 1011, the two second thin plate structures 1012, and the two frame connection parts 101b. The two frame connection parts 101b are respectively connected to two opposite sides of the first thin plate structure 1011 along the first direction S1.

[0071] When, as described in the foregoing technical solution, the metal frame 14 includes a first part 141 and a second part 142 connected at an angle, both of the two second metal fasteners 15 are provided on the first part 141 for firmly connecting the first part 141, the frame connection part 101b, and the insulator 102 together.

[0072] Exemplarily, the frame connection part 101b may be provided with a second connection hole 101c. Among the two opposite ends of the insulator 102, one end is an electrode connection part 102a, and the other end may be provided with a third connection hole 102c. The end of the second metal fastener 15 away from the metal frame 14 passes through the corresponding second connection hole 101c and is detachably connected to the third connection hole 102c to firmly connect the metal frame 14, the frame connection part 101b, and the insulator 102 together. Among them, the second metal fastener 15 can be detachably connected to the third connection hole 102c by means including but not limited to threaded connection, interference fit connection, etc.

[0073] When, as described in the foregoing technical solution, the electrode connection part 102a is provided with a first connection hole 102b, optionally, the first connection hole 102b and the third connection hole 102c are spaced apart, so that the first metal fastener 13 connected to the first connection hole 102b and the second metal fastener 15 connected to the third connection hole 102c can be insulated from each other, and further, the electrode 21 of the fuse 2 can be prevented from being electrically conducted to the metal frame 14.

[0074] As Figures 5 to 8 shown, the present invention further provides a fuse assembly 100, including a fuse 2 and the fuse holder 1 as described in the foregoing technical solution. The fuse 2 is located in the first accommodation cavity 101a of the fuse holder 1, and the two electrodes 21 of the fuse 2 are respectively connected to the two electrode connection parts 102a of the fuse holder 1. By using the foregoing fuse holder 1 to accommodate the fuse 2, the fuse assembly 100 can ensure that the electrical clearance between the electrodes 21 of the fuse 2 and other adjacent structures meets the requirements during use.

[0075] When the fuse holder 1 includes a first metal fastener 13, the electrode 21 of the fuse 2, the external circuit connection structure, and the electrode connection part 102a can be firmly connected by the first metal fastener 13. Thus, while fixing the fuse 2 to the insulating base 10, the electrode 21 of the fuse 2 can be electrically connected to the external circuit connection structure, thereby connecting the fuse 2 to the external circuit. Exemplarily, when the fuse assembly 100 is applied to a battery pack, the electrode 21 of the fuse 2, the connection copper bar 300a of the battery 300 of the battery pack, and the electrode connection part 102a can be firmly connected by the first metal fastener 13, thereby connecting the fuse 2 to the battery circuit of the battery pack.

[0076] As Figure 9 shown, the present utility model further provides a battery pack, which includes a battery box 200, a battery 300, and the fuse component 100 as described in the foregoing technical solution. The battery box 200 has a second accommodation cavity 200a. The battery 300 and the fuse component 100 are both disposed in the second accommodation cavity 200a, and the insulating base 10 of the fuse component 100 is connected to the cavity wall of the second accommodation cavity 200a. The two connection copper bars 300a of the battery 300 are respectively connected to the two electrodes 21 of the fuse component 100. By using the foregoing fuse component 100, the battery pack can ensure that the electrical clearance between the electrodes 21 of the fuse 2 and other adjacent battery pack components meets the requirements during use, avoiding safety accidents, and the use safety of the battery pack is relatively good.

[0077] When the fuse holder 1 further includes a metal frame body 14, the insulating base 10 is connected to the cavity wall of the second accommodation cavity 200a through the metal frame body 14.

[0078] In the description herein, it should be understood that the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive distinction and have no special meanings.

[0079] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0080] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0081] The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present utility model and cannot be construed as a limitation to the protection scope of the present utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation manners of the present utility model without creative labor, and these manners will fall within the protection scope of the present utility model.

Claims

1. A fuse holder for accommodating a fuse, characterized in that: The fuse holder comprises: an insulating base, the insulating base having two electrode connecting parts, the two electrode connecting parts being spaced and opposite to each other along a first direction, the electrode connecting parts being used to be connected to the electrodes of the fuse; and, An insulating cover body, wherein the insulating cover body is connected to the insulating base to form a first accommodating cavity, the first accommodating cavity is located between the two electrode connecting parts, and the first accommodating cavity is used to accommodate the fuse, and the two opposite sides of the insulating cover body along the first direction are respectively provided with protruding structures extending in a direction away from the first accommodating cavity, the two protruding structures are correspondingly covered on the two electrode connecting parts, and one end of the protruding structure extends to the side of the corresponding electrode connecting part away from the first accommodating cavity.

2. The fuse holder according to claim 1, characterized in that: Along the first direction, a protrusion dimension of the protrusion structure protruding from the corresponding electrode connecting portion is d, and 11.84 mm≤d.

3. The fuse holder according to claim 1, characterized in that: A thin-wall structure is protruded from the edge of the protruding structure in a direction close to the insulating base.

4. The fuse holder according to claim 1, characterized in that: The insulating cover and the protruding structure are integrally formed.

5. The fuse holder according to any one of claims 1 to 4, characterized in that: At least a portion of the protruding structure is an inclined plate structure, and the inclined plate structure is inclined toward the insulating base in a direction away from the first accommodating cavity.

6. The fuse holder according to any one of claims 1 to 4, characterized in that: The insulating cover body includes two separately arranged sub-cover bodies, the two sub-cover bodies are arranged at intervals along the first direction, and the two sub-cover bodies are respectively connected to the insulating base to form the first accommodating cavity between the two sub-cover bodies and the insulating base, and the two sub-cover bodies are respectively provided with the protruding structure in a one-to-one correspondence.

7. The fuse holder according to claim 1, characterized in that: The fuse holder further includes a first metal fastener, which is detachably connected to the electrode connecting portion.

8. The fuse holder according to claim 1, characterized in that: The surface of the insulating base is further provided with a reinforcing rib, and at least a part of the reinforcing rib is located in the first accommodating cavity; and / or, The insulating base is provided with a buckle portion, the buckle portion is detachably buckled to the insulating cover, and the buckle portion is located on a surface of the insulating base away from the first accommodating cavity; and / or, The insulating base also includes a first thin plate structure and two second thin plate structures, wherein the first thin plate structure is respectively connected to the electrode connecting portion at two opposite sides along the first direction, the second thin plate structure extends toward the insulating cover along the second direction, and the two second thin plate structures are spaced and arranged at two opposite sides of the first thin plate structure along the third direction, and a recess is provided on one side of the second thin plate structure close to the insulating cover, and the recess is connected to the first accommodating cavity and the outside of the fuse holder, wherein the second direction is the arrangement direction of the insulating base and the insulating cover, and the first direction, the second direction and the third direction are perpendicular to each other.

9. The fuse holder according to any one of claims 1 to 4, claim 7 or 8, characterized in that: The fuse holder also includes a metal frame, which includes a first part and a second part connected at an angle, the first part is stacked and connected to a side of the insulating base away from the insulating cover, and the second part is located on a side of an adjacent protruding structure away from the first accommodating cavity.

10. The fuse holder according to any one of claims 1 to 4, claim 7 or 8, characterized in that: The insulating base comprises a base body and two insulators, the base body has the first accommodation cavity, the base body also has two frame connecting parts respectively located at two opposite sides of the first accommodation cavity, and the insulator has the electrode connecting part; The fuse holder also includes a metal frame, on which two second metal fasteners are spaced apart, the two second metal fasteners are correspondingly penetrated through the two frame connection parts, and one end of the second metal fastener away from the metal frame is connected to one end of the insulator away from the electrode connection part.

11. A fuse assembly, characterized in that: It comprises a fuse and a fuse holder as claimed in any one of claims 1 to 10, wherein the fuse is located in a first accommodating cavity of the fuse holder, and two electrodes of the fuse are respectively connected to two electrode connecting parts of the fuse holder.

12. A battery pack, characterized in that: It comprises a battery box, a battery and a fuse assembly as claimed in claim 11, wherein the battery box has a second accommodating cavity, the battery and the fuse assembly are both arranged in the second accommodating cavity, and the insulating base of the fuse assembly is connected to the cavity wall of the second accommodating cavity, and the two connecting copper bars of the battery are respectively connected to the two electrodes of the fuse assembly.

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