Fuse assembly and electrical equipment

Abstract

The utility model discloses a fuse assembly and electrical equipment, and belongs to the technical field of electrical equipment. The fuse assembly comprises a first protective cover which defines an accommodating cavity and is made of an insulating material piece, and a second protective cover which defines an accommodating cavity and is made of an insulating material piece, the fuse protector is arranged in the accommodating cavity; and the radiator is arranged on the first protective cover and is used for radiating heat of the fuse. According to the fuse assembly provided by the invention, the fuse is mounted in the insulated first protective cover, so that the range of arc discharge can be reduced, the probability of damage to other circuits in the electrical equipment is reduced, the safety of the electrical equipment is improved, and meanwhile, the heat dissipation capability of the fuse is improved.

Description

Technical Field

[0001] This application belongs to the technical field of electrical equipment, and particularly relates to a fuse component and an electrical equipment. Background Art

[0002] In the related art, the fuse may have a problem of untimely fusing during overload, resulting in the failure of the expected protection function of the fuse. At this time, the internal fuse is extremely prone to arcing, which may further induce the arc spraying phenomenon. This phenomenon will increase the risk of failure and may ultimately lead to serious safety accidents. Utility Model Content

[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a fuse component and an electrical equipment, which can reduce the range of arcing generation, reduce the probability of damage to other circuits inside the electrical equipment, and improve the safety of the electrical equipment.

[0004] In a first aspect, this application provides a fuse component, including:

[0005] A first protective cover that defines a receiving cavity, and the first protective cover is made of an insulating material;

[0006] A fuse, which is installed in the receiving cavity;

[0007] A radiator, which is installed on the first protective cover and is used to dissipate heat from the fuse.

[0008] According to the fuse component provided by the embodiment of this application, by installing the fuse in the insulating first protective cover, the range of arcing generation can be reduced, the probability of damage to other circuits inside the electrical equipment can be reduced, the safety of the electrical equipment can be improved, and at the same time, the heat dissipation capacity of the fuse can be improved.

[0009] According to an embodiment of this application, it further includes:

[0010] A positioning member, which is installed in the receiving cavity and is used to position the fuse.

[0011] According to an embodiment of this application, the positioning member includes a positioning protrusion that protrudes inward relative to the side wall of the receiving cavity.

[0012] According to an embodiment of this application, the first protective cover includes:

[0013] A first housing, which has a hollow structure, and one side of the first housing has a first opening;

[0014] A second housing, the second housing being a hollow structure, and the second housing having a second opening on a side opposite to the first opening, the first opening and the second opening being docked to form the accommodation cavity.

[0015] According to an embodiment of the present application, both the radiator and the fuse are multiple, and the multiple radiators and the multiple fuses are installed in one-to-one correspondence.

[0016] According to an embodiment of the present application, it further includes:

[0017] A first isolating member, the first isolating member being installed between the positive electrode and the negative electrode of the fuse, and the first isolating member being made of an insulating material.

[0018] According to an embodiment of the present application, the fuses are multiple, and the multiple fuses are all installed in the accommodation cavity. The electrical device further includes:

[0019] A second isolating member, the second isolating member being installed between two adjacent fuses, and the second isolating member being made of an insulating material.

[0020] According to an embodiment of the present application, it further includes:

[0021] A third isolating member, the third isolating member being installed outside the first protective cover, and the third isolating member being made of an insulating material.

[0022] According to an embodiment of the present application, the wall surface of the fuse includes a first region, and the thickness of the first region is less than the thickness of other positions of the wall surface of the fuse.

[0023] According to an embodiment of the present application, the fuses are multiple, and the electrical device further includes:

[0024] Multiple second protective covers, the second protective covers being sleeved outside the first region, and the multiple second protective covers and the multiple fuses being installed in one-to-one correspondence.

[0025] According to an embodiment of the present application, the fuses are multiple, and the electrical device further includes:

[0026] A second protective cover, the second protective cover being sleeved outside the wall surface where the first regions of the multiple fuses are located.

[0027] In a second aspect, the present application provides an electrical device, including:

[0028] A housing;

[0029] A fuse assembly as any one of the above, the fuse assembly being installed inside the housing.

[0030] According to the electrical equipment provided by the embodiments of the present application, by installing the fuse in the insulated first protective cover, the range of arc generation can be reduced, the probability of damage to other circuits inside the electrical equipment can be decreased, the safety of the electrical equipment can be improved, and at the same time, the heat dissipation capacity of the fuse can be enhanced.

[0031] Some of the additional aspects and advantages of the present application will be given in the following description, some will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0033] Figure 1 is one of the schematic structural diagrams of the fuse assembly provided by the embodiments of the present application;

[0034] Figure 2 is another schematic structural diagram of the fuse assembly provided by the embodiments of the present application;

[0035] Figure 3 is yet another schematic structural diagram of the fuse assembly provided by the embodiments of the present application;

[0036] Figure 4 is Figure 3 the cross-sectional view at A in

[0037] Figure 5 is the schematic structural diagram of the first housing provided by the embodiments of the present application;

[0038] Figure 6 is the schematic structural diagram of the second housing provided by the embodiments of the present application; [[ID=?]]

[0039] Figure 7 is the partial schematic structural diagram of the electrical equipment provided by the embodiments of the present application;

[0040] Figure 8 is the schematic structural diagram of the fuse provided by the embodiments of the present application;

[0041] Figure 9 is the partial schematic structural diagram of the fuse assembly provided by the embodiments of the present application;

[0042] Figure 10 is the partial schematic structural diagram of the fuse provided by the embodiments of the present application.

[0043] Reference Signs:

[0044] First protective cover 100, first housing 110, second housing 120, positioning member 130, accommodation cavity 140, second isolation member 150;

[0045] Fuse 200, first region 210, positive electrode 220, negative electrode 230, first separator 240;

[0046] Radiator 300, second protective cover 400, housing 500, third separator 600. Detailed implementation manners

[0047] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0048] Reference is made below to Figures 1-9 Describe a fuse assembly according to an embodiment of the present application.

[0049] An embodiment of the present application provides a fuse assembly, as Figure 2 shown. The fuse assembly includes a first protective cover 100, a fuse 200, and a radiator 300.

[0050] The first protective cover 100 can be a cylindrical structure, a trapezoidal structure, or other shaped structures. For example, as Figure 1 shown, the first protective cover 100 is a rectangular structure.

[0051] As Figure 1 and Figures 5-6 shown, the first protective cover 100 defines a receiving cavity 140, and the fuse 200 is installed in the receiving cavity 140, that is, the first protective cover 100 wraps the fuse 200.

[0052] The first protective cover 100 is made of an insulating material and can be made of insulating materials including but not limited to polyethylene, rubber, plastic, etc.

[0053] The radiator 300 is installed on the first protective cover 100. The radiator 300 can be installed on the outer wall, top, or bottom of the first protective cover 100. For example, as Figures 2-4 shown, the radiator 300 is installed on the outer wall of the first protective cover 100 and is disposed opposite to the fuse 200 to increase the contact area between the radiator 300 and the fuse 200.

[0054] One or more radiators 300 can be provided. Herein, "multiple" means two or more. The number of radiators 300 and the number of fuses 200 can be the same, and multiple radiators 300 can be disposed opposite to multiple fuses 200 in a one-to-one correspondence. For example, as Figures 2-3As shown, both the radiator 300 and the fuse 200 are provided in seven numbers, and the seven radiators 300 and the seven fuses 200 are arranged opposite to each other in a one-to-one correspondence.

[0055] As Figures 2-4 shown, the outer sidewall of the first protective cover 100 in the width direction can be provided with a slot, the radiator 300 is installed in the slot, and the substrate of the radiator 300 is located in the accommodation cavity 140, and the sidewall of the fuse 200 is in contact with the substrate of the radiator 300.

[0056] In the actual implementation process, the fuse 200 is installed in the accommodation cavity 140 of the first protective cover 100, and the first protective cover 100 and the fuse 200 as a whole are installed in the box body. When an arc-drawing and arc-spraying phenomenon occurs inside the fuse 200, the arc ejected by the fuse 200 is blocked by the first protective cover 100 and is difficult to reach the outside of the first protective cover 100. At the same time, the first protective cover 100 is made of an insulating material. Therefore, when an arc-drawing and arc-spraying phenomenon occurs in the fuse 200, only the fuse wire of the fuse 200 is damaged, and it is difficult to cause arc-drawing in other circuits inside the electrical equipment. At the same time, the temperature of the fuse wire of the fuse 200 rises and a large amount of heat is generated during the fusing process. Since the sidewall of the fuse 200 is in contact with the substrate of the radiator 300, the heat generated by the fuse wire is transferred to the substrate of the radiator 300 through the sidewall of the fuse 200, and then the heat is dissipated to the outside through the fins of the radiator 300.

[0057] By installing the fuse 200 in the insulating first protective cover 100, when an arc is ejected from the fuse 200, the first protective cover 100 can be used to block the ejected arc from contacting the circuit outside the first protective cover 100, thereby reducing the probability that the circuit outside the first protective cover 100 also generates an arc, and reducing the probability of the whole electrical equipment catching fire, improving the safety of the electrical equipment. In addition, by providing the radiator 300 on the first protective cover 100, the heat dissipation effect of the fuse 200 can be improved, and the probability of the fuse wire overheating can be reduced.

[0058] According to the fuse component provided by the embodiment of the present application, by installing the fuse 200 in the insulating first protective cover 100, the range of arc generation can be reduced, the probability of damage to other circuits inside the electrical equipment can be reduced, the safety of the electrical equipment can be improved, and at the same time, the heat dissipation ability of the fuse 200 can be improved.

[0059] In some embodiments, as Figure 5 shown, the fuse component further includes a positioning member 130, and the positioning member 130 is installed in the accommodation cavity 140 for positioning the fuse 200.

[0060] Among them, as Figure 5As shown, a positioning member 130 is installed in the accommodation cavity 140. The positioning member 130 can be a snap member, an adhesive member, or other structural members.

[0061] During actual implementation, when installing the fuse 200, place the fuse 200 in the accommodation cavity 140 and use the positioning member 130 to fix the fuse 200 at a specified position.

[0062] Through the setting of the above positioning member 130, the shaking of the fuse 200 can be reduced, and the safety of the fuse 200 during operation can be improved.

[0063] In some embodiments, as Figure 5 shown, the positioning member 130 includes a positioning protrusion that protrudes inward relative to the side wall of the accommodation cavity 140.

[0064] Among them, as Figure 5 shown, the accommodation cavity 140 includes a plurality of sub-cavities, and the number of sub-cavities can be greater than or equal to the number of fuses 200.

[0065] A plurality of positioning protrusions are provided on the side wall of the accommodation cavity 140, and the plurality of positioning protrusions can be evenly distributed in the plurality of sub-cavities. The positioning protrusions are the positioning member 130. One positioning protrusion or a plurality of positioning protrusions can be distributed on the side wall of each sub-cavity. For example, as Figure 5 shown, four positioning protrusions are distributed on the side wall of each sub-cavity, and the four positioning protrusions are distributed in pairs on the inner wall of the first protective cover 100, and the two positioning protrusions on the same surface are spaced apart.

[0066] The positioning protrusion can be a rectangular structure, a circular structure, a trapezoidal structure, or other shaped structures. For example, as Figure 5 shown, the positioning protrusion is a long strip structure.

[0067] It should be noted that the protruding length of the positioning protrusion can be set according to the size of the fuse 200 so that the positioning protrusion can contact the fuse 200 and generate a certain frictional force.

[0068] During actual implementation, when installing the fuse 200 in the corresponding sub-cavity, the side surface of the fuse 200 contacts the positioning protrusion on the corresponding side wall in the sub-cavity, and a certain frictional force is generated between the positioning protrusion and the fuse 200. Under the action of the frictional force, the fuse 200 is fixed in the sub-cavity and is difficult to move randomly.

[0069] By providing a positioning protrusion that protrudes inward relative to the side wall on the side wall of the accommodation cavity 140, the structure is simple, and it can be integrally formed with the first protective cover 100, thereby reducing production costs. At the same time, when installing the fuse 200, the fuse 200 can be fixed without other operations.

[0070] In some embodiments, such as Figure 2 shown, the first protective cover 100 includes a first housing 110 and a second housing 120.

[0071] Among them, as Figure 5 shown, the first housing 110 is a hollow structure, and one side of the first housing 110 has a first opening. For example, one side of the first housing 110 in the width direction has a first opening.

[0072] As Figure 6 shown, the second housing 120 is a hollow structure, and the second housing 120 has a second opening on the side opposite to the first opening. For example, the second housing 120 has a second opening on the side opposite to the first opening in the width direction.

[0073] The first opening and the second opening are docked to form a receiving cavity 140. As Figure 2 , Figure 5 and Figure 6 shown, when the first opening and the second opening are docked, the hollow part of the first housing 110 communicates with the hollow part of the second housing 120 through the first opening and the second opening, that is, the receiving cavity 140 is formed.

[0074] During the actual implementation process, when installing the fuse 200 and the first protective cover 100, the fuse 200 is installed in the hollow part of the first housing 110 or the second housing 120 through the first opening or the second opening. For example, the fuse 200 is installed in the hollow part of the first housing 110 through the first opening, and then the second opening of the second housing 120 is arranged facing the first opening and docked with the first opening, and the first housing 110 and the second housing 120 are connected by threaded connectors, snap fasteners, welding or other means.

[0075] Through the above settings of the first housing 110 and the second housing 120, it is convenient to install the fuse 200 in the first housing 110, and at the same time, it is convenient to replace or maintain the fuse 200 subsequently.

[0076] In some other embodiments, the first protective cover 100 can also be an integrally formed integral structure.

[0077] In some embodiments, such as Figures 2-4 shown, there are multiple radiators 300 and multiple fuses 200, and the multiple radiators 300 and the multiple fuses 200 are installed in one-to-one correspondence.

[0078] Among them, the number of radiators 300 can be greater than or equal to the number of fuses 200. For example, as Figures 2-4As shown, the number of radiators 300 is the same as the number of fuses 200. A plurality of radiators 300 are spaced apart along the length direction of the first protective cover 100 and are installed corresponding to the plurality of fuses 200 one by one.

[0079] By providing a plurality of radiators 300, the heat dissipation effect of the fuses 200 can be improved when there are multiple fuses 200.

[0080] In some embodiments, as Figure 10 shown, the fuse assembly further includes a first isolation member 240. The first isolation member 240 is installed between the positive electrode 220 and the negative electrode 230 of the fuse 200, and the first isolation member 240 is made of an insulating material.

[0081] The first isolation member 240 can be in a plate-like structure, a block-like structure or other shaped structures. The first isolation member 240 is installed between the positive electrode 220 and the negative electrode 230 of the fuse 200 to separate the positive electrode 220 and the negative electrode 230 of the fuse 200.

[0082] The first isolation member 240 is made of an insulating material, and the first isolation member 240 can be made of insulating materials including but not limited to polyethylene, rubber, plastics, etc.

[0083] During actual implementation, when arcing and arc spraying occur in the fuse wire inside the fuse 200, the arc ejected by the fuse 200 is blocked by the first protective cover 100 and is difficult to reach outside the first protective cover 100. At the same time, the first protective cover 100 is made of an insulating material. Therefore, when arcing and arc spraying occur in the fuse 200, only the fuse wire of the fuse 200 is damaged, and it is difficult to cause arcing in other circuits inside the electrical equipment. Moreover, the positive electrode 220 and the negative electrode 230 of the fuse 200 itself are separated by the insulating first isolation member 240, so it is difficult to generate arcing between the positive electrode 220 and the negative electrode 230 of the fuse 200.

[0084] By using the first isolation member 240 to separate the positive electrode 220 and the negative electrode 230 of the fuse 200, the probability of arcing between the positive electrode 220 and the negative electrode 230 can be reduced, thereby reducing the probability of self-destruction of the fuse 200 when it is not completely fused, reducing the range of arcing generated, and prolonging the service life of the fuse 200.

[0085] In some embodiments, as Figures 5-7 shown, there are multiple fuses 200. The multiple fuses 200 are all installed in the accommodation cavity 140. The fuse assembly further includes a second isolation member 150. The second isolation member 150 is installed between two adjacent fuses 200, and the second isolation member 150 is made of an insulating material.

[0086] Among them, the number of fuses 200 can be two, four, five or other numbers. For example, asFigures 5-7 As shown, there are seven fuses 200, and the seven fuses 200 are spaced apart along the length direction of the accommodation cavity 140.

[0087] As Figures 5-7 shown, there are also multiple second isolation members 150. Each second isolation member 150 is installed between two adjacent fuses 200. That is, the multiple second isolation members 150 are spaced apart along the length direction of the accommodation cavity 140. The end of the second isolation member 150 can extend to the inner wall of the accommodation cavity 140 in the width direction of the accommodation cavity 140, or the end of the second isolation member 150 can be spaced apart from the inner wall of the accommodation cavity 140 in the width direction of the accommodation cavity 140.

[0088] The second isolation member 150 can be made of insulating materials including but not limited to polyethylene, rubber, plastic, etc. to prevent the circuit connection between two adjacent fuses 200.

[0089] The second isolation member 150 can be integrally formed with the first protective cover 100 or can be separately provided from the first protective cover 100.

[0090] Through the above arrangement of the second isolation member 150, when there are multiple fuses 200, two adjacent fuses 200 can be separated, so that when arcing and arc spraying occur in one of the fuses 200, the influence on other fuses 200 can be reduced, and the safety of the electrical equipment is further improved.

[0091] In some embodiments, as Figure 7 shown, the fuse assembly further includes a third isolation member 600. The third isolation member 600 is installed outside the first protective cover 100, and the third isolation member 600 is an insulating material member.

[0092] Among them, the third isolation member 600 can be made of insulating materials including but not limited to polyethylene, rubber, plastic, etc. to prevent the circuit connection between the adjacent first protective cover 100 and the housing 500.

[0093] Since the housing 500 of the electrical equipment needs to be grounded, through the above arrangement of the third isolation member 600, the first protective cover 100 can be separated from the housing 500, that is, the positive electrode and the negative electrode of the fuse 200 can be separated from the ground wire of the electrical equipment, so that the probability of arcing between the positive electrode and the box body and between the negative electrode and the box body can be further reduced.

[0094] In some embodiments, as Figure 8 shown, the wall surface of the fuse 200 includes a first region 210, and the thickness of the first region 210 is less than the thickness of other positions of the wall surface of the fuse 200.

[0095] Among them, the first region 210 can be located at the top, side wall or bottom of the fuse 200. For example, as Figure 8 shown, the first region 210 is located at the top of the fuse 200.

[0096] The first region 210 can be a rectangular structure, a trapezoidal structure, a triangular structure or other shaped structures. For example, as Figure 8 shown, the first region 210 is a circular structure.

[0097] During actual execution, when arcing and arc spraying occur in the fuse wire, since the thickness of the first region 210 is smaller than the thickness of other positions of the fuse 200, the first region 210 is preferentially damaged under the action of internal pressure. At this time, the arc ejected from the fuse wire sprays out from the first region 210 to the outside of the fuse 200, and the pressure on other positions of the fuse 200 is reduced synchronously.

[0098] Through the above setting of the first region 210, the position where the arc spray ejects can be specified, and the influence on the fuse 200 can be reduced.

[0099] In some embodiments, there are multiple fuses 200, and the fuse component further includes multiple second protective covers 400. The second protective covers 400 are sleeved outside the first region 210, and the multiple second protective covers 400 are installed in one-to-one correspondence with the multiple fuses 200.

[0100] Among them, the second protective cover 400 can be sleeved outside the first region 210. When there are multiple fuses 200, there can also be multiple second protective covers 400. The multiple second protective covers 400 are installed in one-to-one correspondence with the multiple fuses 200, that is, the first regions 210 of the multiple fuses 200 are individually protected by the multiple second protective covers 400.

[0101] By individually protecting the first region 210 with the second protective cover 400, the influence of the arc spray on other fuses 200 can be further reduced.

[0102] In some embodiments, as Figure 9 shown, there are multiple fuses 200, and the fuse component further includes a second protective cover 400. The second protective cover 400 is sleeved outside the wall surface where the first regions 210 of the multiple fuses 200 are located.

[0103] Among them, as Figure 9 shown, the bottom of the second protective cover 400 is open. Since the first region 210 is located at the top of the fuse 200, the second protective cover 400 can be sleeved from top to bottom outside the top of the fuse 200. The second protective cover 400 extends along the length direction of the first protective cover 100, that is, the second protective cover 400 can be sleeved outside the tops of the multiple fuses 200.

[0104] The second protective cover 400 may include two docking parts or may be an integral body. For example, as Figure 9 shown, the second protective cover 400 includes two docking parts, and the two parts are docked front and back to form the second protective cover 400.

[0105] By arranging the second protective cover 400 to cover the wall surface where the first area 210 of the plurality of fuses 200 is located, the number of the second protective covers 400 can be reduced, the installation efficiency can be improved, and the production cost can be reduced.

[0106] The embodiment of the present application also provides an electrical device, which may be an inverter, a transformer or other electrical devices. The electrical device includes a housing 500 and a fuse assembly, and the fuse assembly is installed in the housing 500.

[0107] Among them, as Figure 7 shown, the electrical device may further include a housing 500. The housing 500 may be a rectangular structure, a cylindrical structure, a trapezoidal structure or other shaped structures. The interior of the housing 500 is a hollow structure for installing various electronic devices and other components.

[0108] Through the arrangement of the fuse assembly, when an arc is ejected from the fuse 200, the first protective cover 100 can be used to block the ejected arc from contacting the circuit located outside the first protective cover 100, thereby reducing the probability that the circuit located outside the first protective cover 100 also generates an arc, and reducing the probability of the whole electrical device catching fire, improving the safety of the electrical device. In addition, by arranging the radiator 300 on the first protective cover 100, the heat dissipation effect of the fuse 200 can be improved, and the probability of the fuse wire overheating can be reduced.

[0109] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same type, and do not limit the number of objects. For example, the first object may be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0110] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, 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 therefore should not be construed as a limitation to the present application.

[0111] In the description of the present application, the "first feature" and "second feature" may include one or more of such features.

[0112] In the description of the present application, the meaning of "a plurality of" is two or more.

[0113] In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0114] In the description of the present application, 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 first feature has a higher horizontal height than the second feature.

[0115] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means 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 application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0116] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A fuse component, characterized in that, Comprising: A first protective cover which defines a receiving cavity, and the first protective cover is made of an insulating material; A fuse which is installed in the receiving cavity; A radiator which is installed on the first protective cover and is used for dissipating heat from the fuse.

2. The fuse component according to claim 1, characterized in that, Further comprising: A positioning member which is installed in the receiving cavity and is used for positioning the fuse.

3. The fuse component according to claim 2, characterized in that, The positioning member includes a positioning protrusion protruding inwards relative to the side wall of the receiving cavity.

4. The fuse component according to claim 1, wherein, The first protective cover includes: A first housing which is of a hollow structure, and one side of the first housing has a first opening; A second housing which is of a hollow structure, and the second housing has a second opening on the side opposite to the first opening, and the first opening and the second opening are docked to form the receiving cavity.

5. The fuse component according to claim 1, wherein Both the radiator and the fuse are multiple, and the multiple radiators and the multiple fuses are installed in one-to-one correspondence.

6. The fuse component according to claim 1, wherein Further comprising: A first isolating member which is installed between the positive electrode and the negative electrode of the fuse, and the first isolating member is made of an insulating material.

7. The fuse component according to claim 1, characterized in that, The fuses are multiple, and all the multiple fuses are installed in the receiving cavity. The fuse assembly further includes: A second isolating member which is installed between two adjacent fuses, and the second isolating member is made of an insulating material.

8. The fuse component according to claim 1, wherein, Further comprising: A third isolating member which is installed outside the first protective cover, and the third isolating member is made of an insulating material.

9. The fuse component according to any one of claims 1-8, characterized in that, The wall surface of the fuse includes a first region, and the thickness of the first region is smaller than the thickness of other positions of the wall surface of the fuse.

10. The fuse component according to claim 9, wherein, The fuses are multiple, and the fuse assembly further includes: Multiple second protective covers which cover outside the first region, and the multiple second protective covers and the multiple fuses are installed in one-to-one correspondence.

11. The fuse component according to claim 9, characterized in that The fuses are multiple, and the fuse assembly further includes: A second protective cover which covers outside the wall surface where the first regions of the multiple fuses are located.

12. An electrical device, characterized in that, Comprising: A housing; The fuse assembly according to any one of claims 1-11, and the fuse assembly is installed in the housing.

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