Fuse connector

Abstract

The invention provides a fuse connector. The fuse connector comprises a fuse and two connecting assemblies, the two connecting assemblies are respectively arranged at two ends of the fuse and are respectively a positive electrode connecting assembly and a negative electrode connecting assembly; the connecting assembly comprises an outer connecting piece and an integrally-formed inner connecting piece, and the inner connecting piece is arranged in the outer connecting piece. The inner connecting piece is connected and contacted with one end of the fuse for conduction; when a plurality of fuse connectors are connected in series, in every two adjacent fuse connectors, the inner connecting piece of the positive electrode connecting assembly of one fuse connector is connected, matched and contacted with the inner connecting piece of the negative electrode connecting assembly of the other fuse connector for electric conduction. The inner connecting piece is of an integrally formed structure, so that the problem that the structures of the positive connector and the negative connector are complex to manufacture due to a split structure in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fuse connectors, and in particular to a fuse connector. Background Art

[0002] In the existing fuse connector, the positive connector includes a separately set machined plug sleeve, an inner net (to achieve the conductive function) and a retaining ring, and the negative connector includes a separately set machined pin and a retaining ring; the plug sleeve and the pin cooperate to achieve the plug-in and pull-out function, and the retaining ring achieves the retaining function.

[0003] On the one hand, the material and processing costs of machined parts are high; on the other hand, the pins and sockets of machined parts need to be installed with stop rings and inner nets, which affects production efficiency and wastes materials.

[0004] Therefore, the separate structure makes the structures of the positive electrode connector and the negative electrode connector complicated to manufacture. Summary of the invention

[0005] The main purpose of the present invention is to provide a fuse connector to solve the problem in the prior art that the structure of the positive connector and the negative connector is complicated to manufacture due to the separate structure.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a fuse connector, which includes a fuse and two connection components; the two connection components are respectively arranged at the two ends of the fuse and are respectively a positive connection component and a negative connection component; the connection component includes an external connection piece and an integrally formed internal connection piece, and the internal connection piece is arranged inside the external connection piece; the internal connection piece is connected to one end of the fuse and contacts and conducts electricity; when multiple fuse connectors are connected in series, in two adjacent fuse connectors, the internal connection piece of the positive connection component of one fuse connector is connected and matched with the internal connection piece of the negative connection component of another fuse connector and contacts and conducts electricity.

[0007] Furthermore, the inner connector includes a spring sheet portion and a connecting body of a columnar structure, the spring sheet portion having a connecting end and a free end, the connecting end of the spring sheet portion being fixedly connected to the outer peripheral wall of the connecting body, and the free end of the spring sheet portion being movably arranged in a direction perpendicular to the axial direction of the connecting body; the free end of the spring sheet portion abuts against the inner wall of the outer connector so that the outer connector and the inner connector are relatively fixed; the connecting body of the inner connector of the positive connecting assembly of one fuse connector is connected, matched and contacted with the connecting body of the inner connector of the negative connecting assembly of another fuse connector for electrical conduction.

[0008] Furthermore, a step structure is provided on the inner wall of the external connecting member, and the free end of the elastic sheet portion is used to abut against the step surface of the step structure.

[0009] Furthermore, the inner connecting member includes a plurality of spring sheet portions distributed along the circumference of the connecting body.

[0010] Furthermore, the internal connecting piece includes a contact portion and a connecting body with a columnar structure, wherein the contact portion is arranged at a first end of the connecting body, and is used to connect with one end of the fuse and contact for electrical conduction; at least a portion of the contact portion can be elastically and movably arranged along a direction perpendicular to the axial direction of the connecting body.

[0011] Furthermore, the contact portion has a first end and a second end that are relatively arranged along the axial direction of the connecting body; the internal connecting part also includes a first connecting portion and a second connecting portion, the first connecting portion is fixedly arranged at the first end of the connecting body, and the first end and the second end of the contact portion are fixedly connected to the first connecting portion and the second connecting portion respectively.

[0012] Furthermore, the inner connecting member includes a plurality of contact portions distributed along the circumference of the connecting body, the plurality of contact portions surround a connecting hole, and one end of the fuse is inserted into the connecting hole.

[0013] Furthermore, the contact portion has a first end and a second end that are relatively arranged along the axial direction of the connecting body; the first end of the contact portion is connected to the first end of the connecting body; the inner connecting piece also includes a guide portion arranged at the second end of the contact portion, the guide portion has a connecting end and a free end, and the connecting end of the guide portion is connected to the second end of the contact portion; along a direction perpendicular to the axial direction of the connecting body, the free end of the guide portion is located on the outside of its connecting end; during the process of installing the inner connecting piece into the outer connecting piece, the free end of the guide portion slides along the inner wall of the outer connecting piece.

[0014] Furthermore, the connecting body includes a second connecting section; when multiple fuse connectors are connected in series, in two adjacent fuse connectors, the second connecting section of the positive connecting component of one fuse connector is connected and matched with the second connecting section of the negative connecting component of another fuse connector and contacts for electrical conduction.

[0015] Furthermore, one of the second connection segment of the positive connection component and the second connection segment of the negative connection component is provided with a plug-in hole, and the other serves as a plug-in portion; when a plurality of fuse connectors are connected in series, the second connection segment of the positive connection component of one fuse connector among two adjacent fuse connectors is plug-fitted with the second connection segment of the negative connection component of the other fuse connector, and the plug-fitting is that the plug-in portion is inserted into the plug-in hole; at least a portion of the plug-in portion is made of conductive material, and the hole wall of at least a portion of the hole segment of the plug-in hole is made of conductive material.

[0016] Furthermore, the plug-in hole includes a preset hole segment, and a preset mesh structure surrounds the preset hole segment, and the preset mesh structure is made of conductive material.

[0017] Furthermore, the fuse connector also includes a sleeve, which is sleeved on the outside of the fuse and is connected and fixed to the external connecting pieces of the two connecting components.

[0018] By applying the technical solution of the present invention, the fuse connector includes a fuse and two connection components; the two connection components are respectively arranged at two ends of the fuse; and the two connection components are respectively a positive connection component and a negative connection component.

[0019] The connection assembly includes an external connection member and an integrally formed internal connection member; the internal connection member is arranged inside the external connection member so that the internal connection member and the external connection member are relatively fixed; the internal connection member is connected to one end of the fuse so that the internal connection member and the one end of the fuse are in contact and conductive, and the internal connection member and the one end of the fuse are relatively fixed.

[0020] When a plurality of fuse connectors are connected in series, in two adjacent fuse connectors, the inner connector of the positive connection assembly of one fuse connector is connected and matched with the inner connector of the negative connection assembly of another fuse connector and contacts and conducts electricity.

[0021] By making the inner connector an integrally formed structure, the structure of the inner connector is simple to manufacture, and the structure of the connection assembly is simple to manufacture, thereby solving the problem that the separate structure in the prior art makes the structure of the positive connector and the negative connector complicated to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 A schematic structural diagram of an embodiment of a fuse connector according to the present invention is shown;

[0024] Figure 2 A structural schematic diagram showing an inner connector of a positive electrode connection assembly of a fuse connector according to the present invention from one perspective;

[0025] Figure 3 A schematic structural diagram showing another perspective of the inner connector of the positive electrode connection assembly of the fuse connector according to the present invention;

[0026] Figure 4 A structural schematic diagram showing an inner connector of a negative electrode connection assembly of a fuse connector according to the present invention from one perspective;

[0027] Figure 5 A structural schematic diagram from another perspective of the inner connector of the negative electrode connection assembly of the fuse connector according to the present invention is shown.

[0028] The above drawings include the following reference numerals:

[0029] 10. Fuse;

[0030] 20. connection assembly; 201. positive connection assembly; 202. negative connection assembly;

[0031] 21. External connecting member; 211. Step structure;

[0032] 22, inner connector; 221, connecting body; 2211, first connecting section; 2212, second connecting section; 2213, transition connecting section; 222, spring sheet; 223, contact portion; 224, first connecting portion; 2241, smooth transition surface; 225, second connecting portion; 226, guide portion; 227, plug-in hole; 2271, preset mesh structure; 229, connecting hole;

[0033] 30. Sleeve; 31. Threaded connection. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] The present invention provides a fuse connector, please refer to Figures 1 to 5 The fuse connector includes a fuse 10 and two connection components 20; the two connection components 20 are respectively arranged at two ends of the fuse 10; the two connection components 20 are respectively a positive connection component 201 and a negative connection component 202.

[0038] In each connection component 20, the connection component 20 includes an external connection member 21 and an integrally formed internal connection member 22; the internal connection member 22 is arranged inside the external connection member 21 so that the internal connection member 22 and the external connection member 21 are relatively fixed; the internal connection member 22 is connected to one end of the fuse 10 so that the internal connection member 22 and one end of the fuse 10 are in contact and conductive, and the internal connection member 22 and one end of the fuse 10 are relatively fixed.

[0039] When multiple fuse connectors are connected in series, in two adjacent fuse connectors, the inner connector 22 of the positive connection assembly 201 of one fuse connector is connected and matched with the inner connector 22 of the negative connection assembly 202 of another fuse connector and contacts and conducts electricity.

[0040] By making the inner connector 22 an integrally formed structure, the structure of the inner connector 22 is simple to manufacture, and the structure of the connecting assembly 20 is simple to manufacture, thereby solving the problem in the prior art that the separate structures make the structures of the positive connector and the negative connector complicated to manufacture.

[0041] Optionally, the fuse connector of the present application is applied to a solar photovoltaic power distribution system.

[0042] In the present application, the inner connecting member 22 is an integrally stamped structure.

[0043] In the present application, the internal connecting member 22 includes a spring portion 222 and a connecting body 221 of a columnar structure; the spring portion 222 has a connecting end and a free end that are relatively arranged; the connecting end of the spring portion 222 is fixedly connected to the outer peripheral wall of the connecting body 221, and the free end of the spring portion 222 is movably arranged along a direction perpendicular to the axial direction of the connecting body 221.

[0044] During the process of installing the inner connecting member 22 into the outer connecting member 21, the free end of the spring portion 222 can be moved and retracted in the direction close to the connecting body 221; after the inner connecting member 22 is installed into the outer connecting member 21, the free end of the spring portion 222 abuts against the inner wall of the outer connecting member 21 to relatively fix the outer connecting member 21 and the inner connecting member 22.

[0045] When multiple fuse connectors are connected in series, in two adjacent fuse connectors, the connection body 221 of the inner connector 22 of the positive connection assembly 201 of one fuse connector is connected and matched with the connection body 221 of the inner connector 22 of the negative connection assembly 202 of another fuse connector to conduct electricity.

[0046] In the present application, a step structure 211 is provided on the inner wall of the outer connecting member 21 , and after the inner connecting member 22 is installed in the outer connecting member 21 , the free end of the elastic sheet portion 222 abuts against the step surface of the step structure 211 .

[0047] Optionally, the step surface and the step side surface of the step structure 211 are arranged at an acute angle or are perpendicular.

[0048] Optionally, the inner connecting member 22 includes a plurality of spring pieces 222 distributed along the circumference of the connecting body 221; after the inner connecting member 22 is installed into the outer connecting member 21, the free ends of the plurality of spring pieces 222 abut against the inner wall of the outer connecting member 21, that is, the free ends of the plurality of spring pieces 222 abut against the step surface of the step structure 211.

[0049] Optionally, the step structure 211 is a ring structure.

[0050] Optionally, a plurality of elastic sheet portions 222 are distributed at intervals along the circumference of the connecting body 221 .

[0051] In the present application, the inner connector 22 also includes a contact portion 223; the connecting body 221 has a first end and a second end that are relatively arranged; the contact portion 223 is arranged at the first end of the connecting body 221, and the contact portion 223 is used to connect with one end of the fuse 10 so that the contact portion 223 is in contact with the fuse 10 for electrical conduction; at least a portion of the contact portion 223 can be elastically and movably arranged along a direction perpendicular to the axial direction of the connecting body 221 to ensure the contact effect of the contact portion 223 and the fuse 10, so that the contact portion 223 and the fuse 10 are in stable contact.

[0052] By making at least a portion of the contact portion 223 elastically movable, the assembly strength of the contact portion 223 can be improved, and the contact portion 223 can have greater durability in use.

[0053] Optionally, the contact portion 223 is a contact spring.

[0054] In the present application, the contact portion 223 has a first end and a second end that are oppositely disposed along the axial direction of the connection body 221 ; the first end of the contact portion 223 is connected to the first end of the connection body 221 .

[0055] The inner connecting member 22 further includes a first connecting portion 224 and a second connecting portion 225 . The first connecting portion 224 is fixedly disposed at a first end of the connecting body 221 . The first end of the contact portion 223 is fixedly connected to the first connecting portion 224 . The second end of the contact portion 223 is connected to the second connecting portion 225 .

[0056] In the present application, the internal connector 22 includes a plurality of contact portions 223 distributed along the circumference of the connecting body 221, and the plurality of contact portions 223 surround a connecting hole 229. One end of the fuse 10 is inserted into the connecting hole 229 so that one end of the fuse 10 is clamped in the connecting hole 229 and one end of the fuse 10 is in contact with the plurality of contact portions 223 for electrical conduction.

[0057] Specifically, the first connecting portion 224 is an annular structure, and the second connecting portion 225 is an annular structure; one end of the fuse 10 is inserted into the annular hole of the second connecting portion 225 and the connecting hole 229 .

[0058] Optionally, the plurality of contact portions 223 are distributed at intervals along the circumference of the connecting body 221 .

[0059] Optionally, along the distribution direction of the first end and the second end of the contact portion 223, the contact portion 223 includes a middle portion located between the first end and the second end thereof; the middle portion of the contact portion 223 is protruded toward the hole center line of the connecting hole 229, and the middle portion of the contact portion 223 is elastically movable along a direction perpendicular to the axial direction of the connecting body 221; when one end of the fuse 10 is inserted into the connecting hole 229, the middle portion of the contact portion 223 is movable toward the direction away from the hole center line of the connecting hole 229, that is, one end of the fuse 10 stretches the middle portion of the contact portion 223, and the middle portion of the contact portion 223 is stretched outward by one end of the fuse 10, so that one end of the fuse 10 is clamped in the connecting hole 229, and one end of the fuse 10 is in tight contact with the contact portion 223.

[0060] In the present application, the inner connecting member 22 also includes a guide portion 226 arranged at the second end of the contact portion 223; the guide portion 226 has a connecting end and a free end, and the connecting end of the guide portion 226 is connected to the second end of the contact portion 223; along a direction perpendicular to the axial direction of the connecting body 221, the free end of the guide portion 226 is located on the outside of its connecting end; in the process of installing the inner connecting member 22 into the outer connecting member 21, the free end of the guide portion 226 slides along the inner wall of the outer connecting member 21.

[0061] Specifically, the connecting end of the guiding portion 226 is fixedly connected to the second connecting portion 225 .

[0062] Optionally, the inner connecting member 22 includes a plurality of guide portions 226 distributed along the circumference of the connecting body 221 .

[0063] Optionally, a plurality of guide portions 226 are distributed at intervals along the circumference of the connecting body 221 .

[0064] Optionally, the guide portion 226 is a guide sheet.

[0065] In the present application, the connecting body 221 includes a first connecting segment 2211 and a second connecting segment 2212 which are distributed along its axial direction and connected to each other. The end of the first connecting segment 2211 away from the second connecting segment 2212 is the first end of the connecting body 221, and the end of the second connecting segment 2212 away from the first connecting segment 2211 is the second end of the connecting body 221.

[0066] Specifically, the elastic sheet portion 222 is connected to the first connecting section 2211 , that is, the connecting end of the elastic sheet portion 222 is fixedly connected to the outer peripheral wall of the first connecting section 2211 .

[0067] In the present application, when multiple fuse connectors are connected in series, in two adjacent fuse connectors, the second connection segment 2212 of the positive connection component 201 of one fuse connector is connected and matched with the second connection segment 2212 of the negative connection component 202 of the other fuse connector to be in contact and conductive.

[0068] Optionally, one of the second connection segment 2212 of the positive connection assembly 201 and the second connection segment 2212 of the negative connection assembly 202 is provided with a plug hole 227, and the other serves as a plug portion. For example, the second connection segment 2212 of the positive connection assembly 201 has a plug hole 227, and the second connection segment 2212 of the negative connection assembly 202 serves as a plug portion.

[0069] When multiple fuse connectors are connected in series, in two adjacent fuse connectors, the second connection segment 2212 of the positive connection component 201 of one fuse connector is plugged into and contacts the second connection segment 2212 of the negative connection component 202 of another fuse connector for electrical conduction, and the plug-in fit is that the plug-in portion is inserted into the plug-in hole 227.

[0070] Specifically, at least a portion of the plug-in portion is made of conductive material, and at least a portion of the hole wall of the plug-in hole 227 is made of conductive material, so that the plug-in portion and the hole wall of the plug-in hole 227 are in contact and conductive.

[0071] Optionally, the plug-in portion is a pin.

[0072] Optionally, the plug hole 227 includes a preset hole segment, and a preset mesh structure 2271 surrounds the preset hole segment; the preset mesh structure 2271 is made of conductive material, and the plug-in portion contacts and conducts electricity with the hole wall of the preset hole segment; that is, the second connecting section 2212 with the plug hole 227 includes a preset mesh structure 2271.

[0073] Optionally, in the connecting body 221 having the plug-in hole 227, the cross-section of the first connecting segment 2211 is equal to the cross-section of the second connecting segment 2212; the cross-section of the first connecting segment 2211 is the cross-section of the first connecting segment 2211 perpendicular to the axial direction of the connecting body 221, and the cross-section of the second connecting segment 2212 is the cross-section of the second connecting segment 2212 perpendicular to the axial direction of the connecting body 221.

[0074] Optionally, in the connection body 221 having the plug-in portion, the cross-section of the first connection section 2211 is larger than the cross-section of the second connection section 2212 .

[0075] Optionally, in the connection body 221 having the plug-in portion, a transition connection section 2213 is provided between the first connection section 2211 and the second connection section 2212 .

[0076] In the present application, the surface of the first connection portion 224 facing the connection body is a smooth transition surface 2241 , so that the first connection portion 224 is smoothly connected with the first end of the connection body 221 .

[0077] In the present application, the outer connecting member 21 is a cylindrical structure; when the inner connecting member 22 is disposed inside the outer connecting member 21 , the axial direction of the connecting body 221 of the inner connecting member 22 is parallel to or identical to the axial direction of the outer connecting member 21 .

[0078] In the present application, the fuse connector further includes a sleeve 30 , which is sleeved on the outside of the fuse 10 , and the sleeve 30 is connected and fixed to the outer connecting members 21 of the two connecting assemblies 20 .

[0079] Specifically, the sleeve 30 is connected to the outer peripheral walls of the outer connecting members 21 of the two connecting assemblies 20 , that is, the sleeve 30 is sleeved on the outer side of a portion of the outer connecting member 21 of each connecting assembly 20 .

[0080] Optionally, an internal thread is provided on the inner wall of the sleeve 30 , and an external thread is provided on the outer peripheral wall of the external connecting member 21 of each connecting assembly 20 , so that the sleeve 30 is threadedly connected to the external connecting member 21 of each connecting assembly 20 . Figure 1 The threaded connection 31 is a threaded connection between the sleeve 30 and the outer connecting member 21 .

[0081] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0082] In the fuse connector provided by the present invention, the fuse connector includes a fuse 10 and two connection components 20; the two connection components 20 are respectively arranged at two ends of the fuse 10; the two connection components 20 are respectively a positive connection component 201 and a negative connection component 202.

[0083] The connection assembly 20 includes an external connection member 21 and an integrally formed internal connection member 22; the internal connection member 22 is arranged inside the external connection member 21 so that the internal connection member 22 and the external connection member 21 are relatively fixed; the internal connection member 22 is connected to one end of the fuse 10 so that the internal connection member 22 and one end of the fuse 10 are in contact and conductive, and the internal connection member 22 and one end of the fuse 10 are relatively fixed.

[0084] When multiple fuse connectors are connected in series, in two adjacent fuse connectors, the inner connector 22 of the positive connection assembly 201 of one fuse connector is connected and matched with the inner connector 22 of the negative connection assembly 202 of another fuse connector and contacts and conducts electricity.

[0085] By making the inner connector 22 an integrally formed structure, the structure of the inner connector 22 is simple to manufacture, and the structure of the connecting assembly 20 is simple to manufacture, thereby solving the problem in the prior art that the separate structures make the structures of the positive connector and the negative connector complicated to manufacture.

[0086] The existing separately arranged inner net and socket have the risk of slipping after assembly, and the existing separately arranged anti-retraction ring and socket or pin have the risk of falling off after assembly; the inner connector 22 of the fuse connector of the present application is an integrally formed structure, and there is no need to assemble the inner net and anti-retraction spring sheet, so this problem does not exist, and the structural stability and reliability of the inner connector 22 are improved.

[0087] The fuse connector of the present application has the following features: 1. The integrally formed inner connector 22 can improve the production efficiency of the inner connector 22, increase the production capacity of the inner connector 22, and reduce the production cost of the inner connector 22; 2. The processing is simplified, the production process is reduced, and the reliability is improved; 3. The structure is simple, easy to assemble, and the assembly yield rate during the production process is high; 4. The material cost is reduced; 5. The weight is reduced.

[0088] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0089] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fuse connector, comprising a fuse (10) and two connection components (20); the two connection components (20) are respectively arranged at two ends of the fuse (10) and are respectively a positive connection component (201) and a negative connection component (202); characterized in that: The connection assembly (20) comprises an external connection member (21) and an integrally formed internal connection member (22), wherein the internal connection member (22) is arranged inside the external connection member (21); the internal connection member (22) is connected to one end of the fuse (10) and contacts the fuse for electrical conduction; When a plurality of the fuse connectors are connected in series, in two adjacent fuse connectors, the inner connector (22) of the positive connection assembly (201) of one fuse connector is connected and matched with the inner connector (22) of the negative connection assembly (202) of another fuse connector to be in contact and conduct electricity.

2. The fuse connector according to claim 1, characterized in that: The inner connecting member (22) comprises a spring sheet portion (222) and a connecting body (221) of a columnar structure, wherein the spring sheet portion (222) has a connecting end and a free end, wherein the connecting end of the spring sheet portion (222) is fixedly connected to the outer peripheral wall of the connecting body (221), and the free end of the spring sheet portion (222) is movably arranged in a direction perpendicular to the axial direction of the connecting body (221); The free end of the elastic sheet portion (222) is brought into contact with the inner wall of the outer connecting member (21), so that the outer connecting member (21) and the inner connecting member (22) are relatively fixed; The connection body (221) of the inner connection piece (22) of the positive connection assembly (201) of one of the fuse connectors is connected and matched with the connection body (221) of the inner connection piece (22) of the negative connection assembly (202) of the other of the fuse connectors to contact and conduct electricity.

3. The fuse connector according to claim 2, characterized in that: A step structure (211) is provided on the inner wall of the external connecting member (21), and the free end of the elastic sheet portion (222) is used to abut against the step surface of the step structure (211); and / or The inner connecting member (22) comprises a plurality of elastic sheet portions (222) distributed along the circumference of the connecting body (221).

4. The fuse connector according to claim 1, characterized in that: The inner connecting member (22) comprises a contact portion (223) and a connecting body (221) of a columnar structure, wherein the contact portion (223) is arranged at a first end of the connecting body (221), and the contact portion (223) is used to connect with one end of the fuse (10) and to contact and conduct electricity; at least a portion of the contact portion (223) is elastically movable along a direction perpendicular to the axial direction of the connecting body (221).

5. The fuse connector according to claim 4, characterized in that: The contact portion (223) has a first end and a second end that are arranged opposite to each other along the axial direction of the connecting body (221); the inner connecting member (22) further comprises a first connecting portion (224) and a second connecting portion (225), the first connecting portion (224) being fixedly arranged at the first end of the connecting body (221), and the first end and the second end of the contact portion (223) being fixedly connected to the first connecting portion (224) and the second connecting portion (225), respectively; and / or The inner connecting member (22) comprises a plurality of contact portions (223) distributed along the circumference of the connecting body (221), the plurality of contact portions (223) enclose a connecting hole (229), and one end of the fuse (10) is inserted into the connecting hole (229).

6. The fuse connector according to claim 4, characterized in that: The contact portion (223) has a first end and a second end that are relatively arranged along the axial direction of the connecting body (221); the first end of the contact portion (223) is connected to the first end of the connecting body (221); the inner connecting member (22) also includes a guide portion (226) arranged at the second end of the contact portion (223), the guide portion (226) has a connecting end and a free end, and the connecting end of the guide portion (226) is connected to the second end of the contact portion (223); along the direction perpendicular to the axial direction of the connecting body (221), the free end of the guide portion (226) is located on the outside of its connecting end; when the inner connecting member (22) is installed in the outer connecting member (21), the free end of the guide portion (226) slides along the inner wall of the outer connecting member (21).

7. The fuse connector according to claim 2, characterized in that: The connecting body (221) comprises a second connecting section (2212); When a plurality of the fuse connectors are connected in series, the second connection section (2212) of the positive electrode connection component (201) of one of the two adjacent fuse connectors is connected to and matched with the second connection section (2212) of the negative electrode connection component (202) of the other fuse connector to achieve electrical conduction.

8. The fuse connector according to claim 7, characterized in that: One of the second connection section (2212) of the positive connection component (201) and the second connection section (2212) of the negative connection component (202) is provided with a plug-in hole (227), and the other serves as a plug-in portion; when a plurality of the fuse connectors are connected in series, the second connection section (2212) of the positive connection component (201) of one of the two adjacent fuse connectors is plug-fitted and in contact with the second connection section (2212) of the negative connection component (202) of the other fuse connector for electrical conduction, and the plug-fitting is that the plug-in portion is plugged into the plug-in hole (227); at least a portion of the plug-in portion is made of conductive material, and at least a portion of the hole wall of the plug-in hole (227) is made of conductive material.

9. The fuse connector according to claim 8, characterized in that: The plug-in hole (227) comprises a preset hole segment, and a preset mesh structure (2271) surrounds the preset hole segment, and the preset mesh structure (2271) is made of a conductive material.

10. The fuse connector according to claim 8, characterized in that: The fuse connector further comprises a sleeve (30), wherein the sleeve (30) is sleeved on the outside of the fuse (10) and is connected and fixed to the outer connecting pieces (21) of the two connecting assemblies (20).

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