Fuse structure and electric equipment

Abstract

The utility model provides a fuse structure and electric equipment, and relates to the technical field of fusing equipment. The fuse structure comprises a first connecting terminal, at least two second connecting terminals and at least two sub-fuses, the first connecting terminal is used for electrically connecting the sub-fuses with a main circuit of a protected circuit, the second connecting terminals are electrically connected with the sub-fuses in a one-to-one correspondence mode, and the second connecting terminals are used for being electrically connected with branches of the protected circuit in a corresponding mode. According to the fuse structure provided by the embodiment of the invention, the total contact resistance of the fuse structure is reduced, and the service life of the fuse structure is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fusing equipment, in particular to a fuse structure and an electric equipment. BACKGROUND

[0002] A fuse is a conventional overcurrent protector. The fuse is usually connected in series in a circuit, and when the current in the circuit exceeds the threshold of the fuse, the fuse body of the fuse will be fused to disconnect the circuit, thereby protecting the electric appliance in the circuit.

[0003] In the prior art, when protecting a parallel circuit, multiple fuses need to be connected in series in each branch of the parallel circuit. Each fuse is connected to the corresponding branch through two fasteners.

[0004] However, the number of fasteners in the above scheme is large, which makes the contact resistance between the fuse and the parallel circuit large, thereby shortening the service life of the fuse. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a fuse structure and an electric equipment to solve the problem of large contact resistance between the fuse and the parallel circuit in the prior art, thereby shortening the service life of the fuse.

[0006] In one aspect, the present application provides a fuse structure, comprising: a first connection terminal, at least two second connection terminals and at least two sub-fuses.

[0007] The first connection terminal is used to electrically connect each sub-fuse and the main circuit of the protected circuit, the second connection terminal is electrically connected to the sub-fuse one by one, and the second connection terminal is electrically connected to the branch of the protected circuit.

[0008] In some possible embodiments, the sub-fuse comprises a shell and a fuse body located in the shell, and the fuse body is electrically connected to the first connection terminal and the second connection terminal respectively.

[0009] In some possible embodiments, the extension directions of the shells of each sub-fuse are the same.

[0010] In some possible embodiments, the first connection terminal comprises at least a first connection segment and a second connection segment arranged on one side of the first connection segment, the second connection segment is inclined relative to the first connection segment, the first connection segment is electrically connected to the sub-fuse, and the second connection segment is used to electrically connect to the main circuit of the protected circuit.

[0011] And / or, the second connecting terminal comprises at least a third connecting segment and a fourth connecting segment arranged on one side of the third connecting segment, the fourth connecting segment is inclined relative to the third connecting segment, the third connecting segment is electrically connected with the sub-fuse, and the fourth connecting segment is used for electrically connecting with the branch of the protected circuit.

[0012] In some possible implementation manners, an electrical connecting member is further included, which is used for electrically connecting the first connecting terminal with the main circuit of the protected circuit, and / or is used for electrically connecting the second connecting terminal with the branch of the protected circuit.

[0013] In some possible implementation manners, a support seat is further included, which is connected with the first connecting terminal and the second connecting terminal to support the first connecting terminal and the second connecting terminal.

[0014] In some possible implementation manners, the support seat has a receiving groove, and at least part of the sub-fuse is located in the receiving groove.

[0015] In some possible implementation manners, the support seat has a notch, the notch is communicated with the receiving groove, and part of the first connecting terminal is located on one side of the notch to dissipate heat of the first connecting terminal through the notch.

[0016] In some possible implementation manners, a first mounting member is further included, which connects the support seat with the first connecting terminal, and / or connects the support seat with the second connecting terminal.

[0017] In some possible implementation manners, a second mounting member is further included, which is arranged on the support seat, and the first mounting member is connected with the second mounting member.

[0018] In some possible implementation manners, the second mounting member is a press rivet.

[0019] In another aspect, the application provides a kind of electric equipment, including equipment circuit and the above-mentioned any fuse structure connected with the equipment circuit.

[0020] The application provides a fuse structure and an electric device. The fuse structure comprises a first connecting terminal, at least two second connecting terminals and at least two sub-fuses. The first connecting terminal is electrically connected with each sub-fuse. The second connecting terminal is electrically connected with the sub-fuse one by one. The first connecting terminal is electrically connected with a main circuit of a parallel circuit. The second connecting terminal is electrically connected with a branch circuit of the parallel circuit. The fuse structure is connected to the parallel circuit, thereby protecting the parallel circuit. In the application, only one first connecting terminal is arranged, thereby reducing the connection position of the fuse structure and the parallel circuit, reducing the total contact resistance of the fuse structure, reducing the heat generated by the current passing through the fuse structure, and prolonging the service life of the fuse structure. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings incorporated into the specification and forming a part thereof show embodiments consistent with the application and, together with the specification, serve to explain the principles of the application.

[0022] Figure 1 A structure schematic view of a first fuse structure provided in the embodiments of the application;

[0023] Figure 2 A structure schematic view of a first fuse structure provided in the embodiments of the application; Figure 1 A structure schematic view of a sub-fuse, a first connecting terminal and a second connecting terminal;

[0024] Figure 3 A structure schematic view of a first fuse structure provided in the embodiments of the application; Figure 1 A structure schematic view of a support seat, a first mounting piece and a second mounting piece;

[0025] Figure 4 A partial structure schematic view of a second fuse structure provided in the embodiments of the application;

[0026] Figure 5 A structure schematic view of a first fuse structure provided in the embodiments of the application; Figure 4 A structure schematic view of a sub-fuse, a first connecting terminal and a second connecting terminal;

[0027] Figure 6 A partial structure schematic view of a third fuse structure provided in the embodiments of the application;

[0028] Figure 7 A structure schematic view of a first fuse structure provided in the embodiments of the application; Figure 6 A structure schematic view of a sub-fuse, a first connecting terminal and a second connecting terminal.

[0029] The above drawings have shown the specific embodiments of the application, and the following will have a more detailed description. The drawings and the written description are not intended to limit the scope of the concept of the application by any means, but to illustrate the concept of the application to those skilled in the art by referring to specific embodiments.

[0030] EXPLANATION OF REFERENCE NUMERALS:

[0031] 100 - first connecting terminal; 110 - first connecting section; 120 - second connecting section;

[0032] 200 - second connecting terminal; 210 - third connecting section; 220 - fourth connecting section;

[0033] 300 - sub-fuse; 301 - first sub-fuse; 302 - second sub-fuse; 310 - housing;

[0034] 400 - electrical connector;

[0035] 500 - support seat; 510 - accommodating groove; 520 - notch; 530 - first support block; 540 - second support block; 550 - connecting block;

[0036] 600 - first mounting member; 700 - second mounting member. DETAILED DESCRIPTION

[0037] The exemplary embodiments will be described in detail below with reference to the drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent the same or similar elements. The following exemplary embodiments described in this specification encompass all possible combinations between elements unless otherwise indicated.

[0038] In the prior art, when protecting a parallel circuit, multiple fuses are respectively connected in series to branches of the parallel circuit. Specifically, the two ends of the fuse respectively have a first connecting terminal and a second connecting terminal, and the first connecting terminal and the second connecting terminal are respectively connected to the corresponding branch by bolts. However, in the above scheme, each fuse and the branch are connected by two bolts, and the number of bolts required for connecting the fuse and the parallel circuit is twice the number of branches in the parallel circuit. The more the number of bolts for connecting the fuse and the parallel circuit, the greater the contact resistance between the fuse and the parallel circuit. In use, the greater the contact resistance of the fuse, the more heat generated by the current passing through the fuse, and thus the higher the internal temperature of the fuse. The excessively high temperature will accelerate the deterioration of the fuse material, for example, the fuse wire inside the fuse and the connection between the fuse and the circuit, thereby shortening the service life of the fuse.

[0039] Based on this, the embodiment of the present application provides a fuse structure, comprising a first connecting terminal, at least two second connecting terminals and at least two sub-fuses, the first connecting terminal is electrically connected with each sub-fuse, the second connecting terminal is electrically connected with the sub-fuse one by one, the first connecting terminal is electrically connected with the main circuit of the parallel circuit, and the second connecting terminal is electrically connected with the branch circuit of the parallel circuit, so as to connect the fuse structure to the parallel circuit, and then protect the parallel circuit. In the present application, only one first connecting terminal is provided, the connection position of the fuse structure and the parallel circuit is reduced, and then the total contact resistance of the fuse structure is reduced, so that the heat generated by the current passing through the fuse structure is reduced, thereby prolonging the service life of the fuse structure.

[0040] The embodiment of the present application is described below with reference to the drawings.

[0041] Referring to Figures 1 to 7 The fuse structure provided by the embodiment of the present application comprises a first connecting terminal 100, at least two second connecting terminals 200 and at least two sub-fuses 300. The first connecting terminal 100 is used for electrically connecting each sub-fuse 300 with the main circuit of the protected circuit, and the second connecting terminal 200 is electrically connected with the sub-fuse 300 one by one, and the second connecting terminal 200 is used for electrically connecting with the branch circuit of the protected circuit.

[0042] Wherein, the protected circuit is a parallel circuit, when the fuse structure protects the parallel circuit, the fuse structure is arranged at the connection position of the main circuit and the branch circuit of the parallel circuit.

[0043] Exemplarily, the first connecting terminal 100 is integrally formed.

[0044] Specifically, the first connecting terminal 100 is electrically connected with each sub-fuse 300, and the first connecting terminal 100 is electrically connected with the main circuit of the parallel circuit. The second connecting terminal 200 is electrically connected with the sub-fuse 300 one by one, and the second connecting terminal 200 is electrically connected with the branch circuit of the parallel circuit one by one. Thus, the main circuit and the branch circuit of the parallel circuit can be connected through the fuse structure. The sub-fuse 300 is connected with the branch circuit of the parallel circuit one by one, so as to protect each branch circuit of the parallel circuit through each sub-fuse 300, when one of the sub-fuses 300 is fused, it will not affect other sub-fuses 300, and other sub-fuses 300 can continue to work.

[0045] The fuse structure provided by the embodiment of the present application is connected to the parallel circuit by setting the first connecting terminal 100, the at least two second connecting terminals 200 and the at least two sub-fuses 300, the first connecting terminal 100 is electrically connected with each sub-fuse 300, the second connecting terminal 200 is electrically connected with the sub-fuse 300 one by one, the first connecting terminal 100 is electrically connected with the main circuit of the parallel circuit, and the second connecting terminal 200 is electrically connected with the branch circuit of the parallel circuit, thereby protecting the parallel circuit. In the present application, only one first connecting terminal 100 is set, thereby reducing the connection position of the fuse structure and the parallel circuit, reducing the total contact resistance of the fuse structure, reducing the extra heat generated by the current passing through the fuse structure, and prolonging the service life of the fuse structure.

[0046] In the specific implementation, the sub-fuse 300 includes a shell 310 and a fuse body located in the shell 310, and the fuse body is electrically connected with the first connecting terminal 100 and the second connecting terminal 200 respectively.

[0047] When the current of the branch circuit of the parallel circuit is too large, the current of the fuse body of the sub-fuse 300 corresponding to the branch circuit is also too large, which can cause the temperature of the fuse body to rise, and the fuse body is melted, thereby protecting the electric appliance on the branch circuit.

[0048] For example, one end of the fuse body is electrically connected with the first connecting terminal 100, and the other end of the fuse body is electrically connected with the second connecting terminal 200. The fuse body is connected with the first connecting terminal 100 and the second connecting terminal 200 by welding. The welding resistance is usually smaller than the resistance of the fuse body, the heat generated by the welding resistance is almost negligible relative to the fuse body, and the welding resistance changes less obviously after aging. Therefore, the fuse body is welded with the first connecting terminal 100 and the second connecting terminal 200 to reduce the contact resistance of the fuse body and the first connecting terminal 100 and the second connecting terminal 200, thereby reducing the overall resistance of the fuse structure.

[0049] The shell 310 can be made of ceramic material, phenolic resin or other materials. The shape of the shell 310 can be rectangular, circular or other shapes, which can be adaptively set according to actual needs, and the embodiment does not limit here.

[0050] Specifically, the shell 310 has a first end and a second end, the fuse body is electrically connected with the first connecting terminal 100 through the first end, and the fuse body is electrically connected with the second connecting terminal 200 through the second end. The first end is connected with the first connecting terminal 100, and the second end is connected with the second connecting terminal 200, so that the connection between the first connecting terminal 100 and the second connecting terminal 200 and the sub-fuse 300 is stable and reliable.

[0051] Exemplarily, the first end and the second end each have an avoiding portion, and the melt body is electrically connected to the first connecting terminal 100 or the second connecting terminal 200 through the avoiding portion. For example, the avoiding portion can be a through hole or an opening arranged on the end face of the first end, and the avoiding portion can be a through hole or an opening arranged on the end face of the second end.

[0052] Further, the sub-fuse 300 further comprises an arc extinguishing medium filled in the shell 310. The arc extinguishing medium is used to eliminate the arc generated by the melt body when the melt body is fused.

[0053] In the embodiments of the present application, the melt bodies are arranged in the corresponding shells 310, so that the influence between the melt bodies is small. Specifically, when the heat of one of the melt bodies is high, the heat of the melt body is not easily transmitted to other melt bodies, and the temperature of the other melt bodies is less affected.

[0054] In some embodiments, one end of the extension direction of the sub-fuse 300 is electrically connected to the first connecting terminal 100, and the other end of the extension direction of the sub-fuse 300 is electrically connected to the second connecting terminal 200. In order to facilitate the electrical connection of the first connecting terminal 100 and each sub-fuse 300 at the same time, the extension directions of the shells 310 of the sub-fuses 300 are the same.

[0055] Specifically, the extension direction of the shell 310 is the direction indicated by X in Figure 2 , Figure 5 and Figure 7 .

[0056] Referring to Figure 2 and Figure 5 , in some examples, the shells 310 of the sub-fuses 300 can be arranged in sequence along a first direction. The first direction can be the direction indicated by Z in Figure 2 , or the first direction can be the direction indicated by Y in Figure 5 .

[0057] Referring to Figure 7 , in other examples, the sub-fuse 300 comprises a first sub-fuse 301 and a second sub-fuse 302, the first sub-fuse 301 is located on one side of the second sub-fuse 302, the width direction of the shell 310 of the first sub-fuse 301 is a second direction, i.e., the direction indicated by Z in Figure 7 , and the width direction of the shell 310 of the second sub-fuse 302 is a third direction, i.e., the direction indicated by Y in Figure 7 , and the second direction is perpendicular to the third direction.

[0058] It can be understood that the arrangement mode of each sub-fuse 300 can be adaptively set according to the actual space to be assembled, which is not limited in the embodiments.

[0059] In a specific implementation, to facilitate the electrical connection of the first connection terminal 100 to the sub-fuse 300 and the protected circuit, and to facilitate the electrical connection of the second connection terminal 200 to the sub-fuse 300 and the protected circuit, at least one of the first connection terminal 100 and the second connection terminal 200 is in a bent shape.

[0060] With reference to Figure 2 In the present application, the first connection terminal 100 includes at least a first connection segment 110 and a second connection segment 120 arranged on one side of the first connection segment 110. The first connection segment 110 is electrically connected to the sub-fuse 300. Specifically, the first connection segment 110 is connected to one end of the housing 310 of each sub-fuse 300 and is electrically connected to the fuse body of each sub-fuse 300. The second connection segment 120 is inclined relative to the first connection segment 110. The second connection segment 120 is used to electrically connect to the main circuit of the protected circuit.

[0061] In addition, the second connection terminal 200 includes at least a third connection segment 210 and a fourth connection segment 220 arranged on one side of the third connection segment 210. The third connection segment 210 is electrically connected to the sub-fuse 300. Specifically, the third connection segment 210 is connected to the other end of the housing 310 and is electrically connected to the fuse body. The fourth connection segment 220 is inclined relative to the third connection segment 210. The fourth connection segment 220 is used to electrically connect to the branch circuit of the protected circuit.

[0062] With reference to Figure 1 , Figure 4 and Figure 6 In some embodiments, the fuse structure provided by the embodiments of the present application further includes an electrical connection member 400. The electrical connection member 400 is used to electrically connect the first connection terminal 100 to the main circuit of the protected circuit, and / or the electrical connection member 400 is used to electrically connect the second connection terminal 200 to the branch circuit of the protected circuit.

[0063] The electrical connection member 400 is arranged to facilitate the electrical connection of the first connection terminal 100 and the second connection terminal 200 to the protected circuit.

[0064] For example, the electrical connection member 400 can be a copper bar.

[0065] In the embodiments of the present application, one first connection terminal 100 is arranged to be electrically connected to each sub-fuse 300. This reduces the number of connections of the first connection terminal 100 to the protected circuit, and further reduces the number of electrical connection members 400 arranged, thereby further reducing the contact resistance between the fuse structure and the protected circuit.

[0066] With reference to Figure 1Specifically, the electric connecting piece 400 is in contact with part of the first connecting terminals 100, and does not need to be in contact with all the first connecting terminals 100, so that the electric connecting piece 400 can be connected with the first connecting terminals 100. In this way, the size of the electric connecting piece 400 can be reduced, and the resistance of the electric connecting piece 400 is reduced, so that the total contact resistance of the electric connection of the fuse structure is reduced. At the same time, reducing the size of the electric connecting piece 400 can reduce the manufacturing cost of the electric connecting piece 400.

[0067] With reference to Figure 1 and Figure 3 In some embodiments, the fuse structure provided by the embodiments of the present application further comprises a support seat 500, which is connected with the first connecting terminals 100 and the second connecting terminals 200 to support the first connecting terminals 100 and the second connecting terminals 200.

[0068] It can be understood that in the prior art, the first connecting terminals 100 and the second connecting terminals 200 are usually connected with the protected circuit to play a role of fixing and supporting the fuse structure. In the embodiments of the present application, the first connecting terminals 100 and the second connecting terminals 200 are connected on the support seat to fix the first connecting terminals 100 and the second connecting terminals 200 on the support seat 500, and then the first connecting terminals 100 and the second connecting terminals 200 can be supported by the support seat 500, so as to ensure the stability and reliability of the first connecting terminals 100 and the second connecting terminals 200.

[0069] For example, the support seat 500 is an integrally injection molded plastic part. The plastic material has good electrical insulation performance, which can improve the safety of the fuse structure.

[0070] With reference to Figure 1 In some embodiments, the support seat 500 has a containing groove 510, and at least part of the sub-fuses 300 are located in the containing groove 510.

[0071] In this way, the containing groove 510 is arranged on the support seat 500 to accommodate at least part of the sub-fuses 300, so as to improve the structural consistency of the fuse structure. At the same time, at least part of the sub-fuses 300 are arranged in the containing groove 510, so as to facilitate the connection of the first connecting terminals 100 and the second connecting terminals 200 with the support seat 500.

[0072] Specifically, the support base 500 includes a first support block 530, a second support block 540, and a connecting block 550. The connecting block 550 connects the first support block 530 and the second support block 540, and the first support block 530 and the second support block 540 are arranged on the same side of the connecting block 550. The first support block 530, the second support block 540, and the connecting block 550 jointly define the accommodating groove 510. The first connecting terminal 100 is overlapped on the first support block 530, and the second connecting terminal 200 is overlapped on the second support block 540.

[0073] With reference to Figure 1 In some embodiments, the support base 500 has a notch 520, the notch 520 is in communication with the accommodating groove 510, and part of the first connecting terminal 100 is located on one side of the notch 520 to dissipate heat from the first connecting terminal 100 through the notch 520.

[0074] The first connecting terminal 100 is cooled by the notch 520, which effectively reduces the operating temperature of the fuse structure, thereby prolonging the service life of the fuse structure. In addition, the notch 520 provided on the support base 500 can reduce the volume of the support base 500, thereby reducing the manufacturing cost and mold cost of the support base 500.

[0075] With reference to Figure 1 and Figure 3 In a specific implementation, the fuse structure provided by the embodiment of the present application further includes a first mounting member 600, the first mounting member 600 connects the support base 500 and the first connecting terminal 100, and / or the first mounting member 600 connects the support base 500 and the second connecting terminal 200.

[0076] The first mounting member 600 is provided to facilitate the connection of the first connecting terminal 100 and the second connecting terminal 200 to the support base 500.

[0077] In the embodiment of the present application, the first mounting member 600 is connected to the support base 500 through the first connecting terminal 100 and the electrical connecting member 400 in sequence, and the first mounting member 600 is connected to the support base 500 through the second connecting terminal 200 and the electrical connecting member 400 in sequence. The contact resistance of the first connecting terminal 100 and the electrical connecting member 400 and the contact resistance of the second connecting terminal 200 and the electrical connecting member 400 are relatively large. In the present application, only one first connecting terminal 100 is provided, and the number of first mounting members 600 required is reduced by reducing the number of first connecting terminals 100, thereby reducing the total contact resistance of the electrical connection of the fuse structure and reducing the overall heat generation of the fuse structure, thereby prolonging the service life of the fuse structure.

[0078] Further, the first connecting section 110 and the shell 310 are located in the accommodating groove 510, the second connecting section 120 is lapped on the first supporting block 530, and the first mounting member 600 is connected with the first supporting block 530 through the second connecting section 120. The third connecting section 210 and the shell 310 are located in the accommodating groove 510, the fourth connecting section 220 is lapped on the second supporting block 540, and the first mounting member 600 is connected with the second supporting block 540 through the fourth connecting section 220.

[0079] With reference to Figure 1 And Figure 3 In some embodiments, the fuse structure provided by the embodiments of the present application further includes a second mounting member 700, the second mounting member 700 is arranged on the supporting seat 500, and the first mounting member 600 is connected with the second mounting member 700.

[0080] In the embodiments of the present application, the second mounting member 700 is arranged to make the connection between the first mounting member 600 and the supporting seat 500 more stable and reliable.

[0081] For example, the first mounting member 600 is a bolt, and the second mounting member 700 is a nut, and the nut is arranged on the supporting seat 500. In specific implementation, the second connecting section 120 and the fourth connecting section 220 each have a first mounting hole, the bolt is inserted into the first mounting hole and connected with the nut.

[0082] In the embodiments of the present application, the first mounting member 600 is connected with the second mounting member 700 through the first connecting terminal 100 and the electric connecting member 400 in sequence, and the first mounting member 600 is also connected with the second mounting member 700 through the second connecting terminal 200 and the electric connecting member 400 in sequence.

[0083] In specific implementation, the second mounting member 700 is a press rivet.

[0084] In the embodiments of the present application, the second mounting member 700 can be a press rivet nut. Compared with arranging a pre-buried nut on the supporting seat 500 and connecting with a bolt, arranging a press rivet nut can obviously reduce the risk of bolt installation skewing, improve the stability and reliability of the connection between the first mounting member 600 and the second mounting member 700, and further improve the stability and safety of the fuse structure.

[0085] On the basis of the above-mentioned embodiments, the embodiments of the present application provide an electric equipment including an equipment circuit and the fuse structure in any of the above-mentioned embodiments connected with the equipment circuit.

[0086] In the above-mentioned embodiments, the specific structure of the fuse structure is described in detail, and will not be described here.

[0087] The power utilization equipment provided by the embodiments of the present application, the fuse structure is connected to the parallel circuit by setting the first connecting terminal 100, the at least two second connecting terminals 200 and the at least two sub-fuses 300, the first connecting terminal 100 is electrically connected with each sub-fuse 300, the second connecting terminal 200 is electrically connected with the sub-fuse 300 one by one, the first connecting terminal 100 is electrically connected with the main circuit of the parallel circuit, and the second connecting terminal 200 is electrically connected with the branch circuit of the parallel circuit, so as to protect the parallel circuit. In the present application, only one first connecting terminal 100 is provided, the connection position of the fuse structure and the parallel circuit is reduced, and the total contact resistance of the fuse structure is reduced, so that the heat generated by the current passing through the fuse structure is reduced, thereby prolonging the service life of the fuse structure.

[0088] The terms "first", "second", etc. in the specification and claims of the embodiments of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0089] In the embodiments of the present application, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present application can be understood according to the specific circumstances.

[0090] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixed connection, detachable connection, or integral structure; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0091] Unless otherwise specified, the term "a plurality of" means two or more.

[0092] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope of the application being indicated by the appended claims.

Claims

1. A fuse structure, characterized in that: include: A first connecting terminal (100), at least two second connecting terminals (200), and at least two sub-fuses (300); The first connecting terminal (100) is used to electrically connect each of the sub-fuses (300) to the main circuit of the protected circuit, the second connecting terminal (200) is electrically connected to the sub-fuses (300) in a one-to-one correspondence, and the second connecting terminal (200) is used to electrically connect to the branch circuit of the protected circuit.

2. The fuse structure according to claim 1, characterized in that: The sub-fuse (300) comprises: a housing (310) and a fuse located in the housing (310), wherein the fuse is electrically connected to the first connecting terminal (100) and the second connecting terminal (200), respectively.

3. The fuse structure according to claim 2, characterized in that: The housings (310) of the sub-fuses (300) extend in the same direction.

4. The fuse structure according to claim 1, characterized in that: The first connecting terminal (100) comprises at least a first connecting section (110) and a second connecting section (120) arranged on one side of the first connecting section (110), the second connecting section (120) being inclined relative to the first connecting section (110), the first connecting section (110) being electrically connected to the sub-fuse (300), and the second connecting section (120) being used to be electrically connected to the main circuit of the protected circuit; And / or, the second connecting terminal (200) comprises at least a third connecting section (210) and a fourth connecting section (220) arranged on one side of the third connecting section (210), the fourth connecting section (220) being inclined relative to the third connecting section (210), the third connecting section (210) being electrically connected to the sub-fuse (300), and the fourth connecting section (220) being used to be electrically connected to a branch of the protected circuit.

5. The fuse structure according to any one of claims 1 to 4, characterized in that: The invention also includes an electrical connector (400), wherein the electrical connector (400) is used to electrically connect the first connection terminal (100) and the main circuit of the protected circuit, and / or the electrical connector (400) is used to electrically connect the second connection terminal (200) and the branch circuit of the protected circuit.

6. The fuse structure according to any one of claims 1 to 4, characterized in that: The invention also includes a support base (500), wherein the support base (500) is connected to the first connection terminal (100) and the second connection terminal (200) to support the first connection terminal (100) and the second connection terminal (200).

7. The fuse structure according to claim 6, characterized in that: The support seat (500) is provided with a receiving groove (510), and at least a portion of the sub-fuse (300) is located in the receiving groove (510).

8. The fuse structure according to claim 7, characterized in that: The support seat (500) has a notch (520), the notch (520) is communicated with the accommodating groove (510), and part of the first connecting terminal (100) is located on one side of the notch (520) so as to dissipate heat for the first connecting terminal (100) through the notch (520).

9. The fuse structure according to claim 6, characterized in that: The invention also includes a first mounting member (600), wherein the first mounting member (600) connects the support base (500) and the first connecting terminal (100), and / or the first mounting member (600) connects the support base (500) and the second connecting terminal (200).

10. The fuse structure according to claim 9, characterized in that: It also includes a second mounting member (700), wherein the second mounting member (700) is arranged on the support seat (500), and the first mounting member (600) is connected to the second mounting member (700).

11. The fuse structure according to claim 10, characterized in that: The second mounting member (700) is a compression riveted member.

12. An electrical device, characterized in that: The invention comprises a device circuit and the fuse structure according to any one of claims 1 to 11 connected to the device circuit.

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