Fuse base and fuse

Abstract

The utility model discloses a fuse pedestal and a fuse, and relates to the technical field of circuit protection devices, the fuse pedestal comprises a pedestal, two sockets, a positioning member and a clamping mechanism, each socket is arranged on the pedestal, and each socket is provided with a first electrode plate and a second electrode plate; the positioning pieces are in one-to-one correspondence with the sockets, each positioning piece is arranged on the base, a gap is reserved between the first end of each positioning piece and the first end of the corresponding socket, and the first electrode and the second electrode of each socket are respectively clamped with the second ends of the positioning pieces; the clamping mechanisms are in one-to-one correspondence with the sockets, each clamping mechanism is clamped between the first end of the corresponding positioning piece and the first end of the corresponding socket, each clamping end is located outside the corresponding gap, one clamping end of each clamping mechanism abuts against the side, away from the second electrode plate, of the corresponding first electrode plate, and the other clamping end of each clamping mechanism abuts against the side, away from the second electrode plate, of the corresponding second electrode plate. The other clamping end of each clamping mechanism abuts against the side, away from the first electrode plate, of the corresponding second electrode plate. According to the utility model, the stability of the performance of the fuse is ensured.

Description

Technical Field

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

[0002] A fuse holder is a mechanical component used in conjunction with a fuse element. It includes a base, a socket, and a spring coil. Currently, the spring coil in most common fuse holders is located between the socket and a limiting bolt on the lower side of the socket. The spring coil is clamped and limited by the lower end of the socket and the limiting bolt. During use, the spring coil is prone to falling off, which can cause the fuse contacts to loosen and affect the normal operation of the fuse. Furthermore, the lack of limiting and positioning of the socket results in poor installation stability and affects the stability of performance. Utility Model Content

[0003] The purpose of this utility model is to provide a fuse base and a fuse to solve the problems existing in the prior art, ensure the installation accuracy and stability of the socket, reduce the risk of the clamping mechanism falling off, and ensure the stability of the fuse performance.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a fuse base, including a base, a socket, a positioning element, and a clamping mechanism, wherein:

[0006] There are two sockets, and the first end of each socket is disposed on the base, and the second end of each socket has a first electrode plate and a second electrode plate;

[0007] The positioning element corresponds to the socket one by one. Each positioning element is disposed on the base. A gap is left between the first end of each positioning element and the first end of the corresponding socket. The first electrode and the second electrode of each socket are respectively engaged with the second end of the corresponding positioning element.

[0008] The clamping mechanism corresponds to the socket one by one. Each clamping mechanism is clamped between the first end of the corresponding positioning member and the first end of the corresponding socket. The two clamping ends of each clamping mechanism are located outside the corresponding gap. One clamping end of each clamping mechanism abuts against the side of the corresponding first electrode plate away from the second electrode plate, and the other clamping end of each clamping mechanism abuts against the side of the corresponding second electrode plate away from the first electrode plate.

[0009] Preferably, each of the first electrode plates and each of the second electrode plates includes a working part and a fixing part connected to each other, and the two fixing parts of each socket are arranged opposite to each other; one clamping end of each clamping mechanism abuts against the fixing part of the corresponding first electrode plate, and the other clamping end of each clamping mechanism abuts against the fixing part of the corresponding second electrode plate; the two fixing parts of each socket are respectively engaged with the corresponding positioning member.

[0010] Preferably, the second end of each positioning member has two positioning portions, each positioning portion including a support portion and a locking strip. The two support portions of each positioning member are respectively disposed on the side of the two fixing portions of each socket away from the clamping mechanism. The locking strip of each positioning portion is disposed on the side of the corresponding support portion close to the clamping mechanism. Each fixing portion of each socket is clamped between the support portion and the locking strip of the corresponding positioning portion.

[0011] Preferably, it further includes two conductive plates, which are integrally formed with the two sockets respectively, and each conductive plate is fixedly connected to the base.

[0012] Preferably, the two positioning members are detachably fixedly connected to the two conductive plates respectively.

[0013] Preferably, each of the conductive plates is provided with a mounting hole, and the first end of each of the positioning members is provided with a protrusion, with the two protrusions respectively inserted into the two mounting holes.

[0014] Preferably, the base is made of alumina ceramic.

[0015] Preferably, the sockets are made of pure copper.

[0016] Preferably, each of the clamping mechanisms is a spring coil.

[0017] This utility model also provides a fuse, including a fuse element and two fuse bases. The fuse element is disposed on the base. One contact of the fuse element is connected to the first electrode plate and the second electrode plate of one socket, and the other contact of the fuse element is connected to the first electrode plate and the second electrode plate of another socket. The first electrode plate and the second electrode plate of each socket can clamp the corresponding contact under the tension force of the corresponding clamping mechanism.

[0018] The present invention achieves the following technical advantages over the prior art:

[0019] The present invention provides a fuse base and a fuse, including positioning elements, each positioning element corresponding to a socket. Each positioning element is disposed on a base, and a gap is left between the first end of each positioning element and the first end of the corresponding socket. The first electrode and the second electrode of each socket are respectively engaged with the second end of the corresponding positioning element. Each clamping mechanism corresponds to a socket, and each clamping mechanism is clamped between the first end of the corresponding positioning element and the first end of the corresponding socket. The two clamping ends of each clamping mechanism are located outside the corresponding gap. One clamping end of each clamping mechanism abuts against the side of the corresponding first electrode plate away from the second electrode plate, and the other clamping end of each clamping mechanism abuts against the side of the corresponding second electrode plate away from the first electrode plate.

[0020] One end of the socket is set on the base. The first electrode plate and the second electrode plate are both engaged with the positioning component. The positioning component can position and limit the first electrode plate and the second electrode plate, ensuring the installation accuracy and stability of the socket, thereby ensuring the stability of its performance. The middle part of the clamping mechanism passes through the gap between the positioning component and the socket and is limited between the positioning component and the socket, reducing the risk of the clamping mechanism falling off and ensuring the stability of the fuse performance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the fuse base provided in Example 1;

[0023] In the diagram: 100, fuse base; 1, base; 101, stepped hole; 2, socket; 201, first electrode plate; 202, second electrode plate; 203, working part; 204, fixing part; 3, positioning part; 301, support part; 302, locking strip; 303, protrusion; 304, positioning plate; 305, connecting plate; 4, clamping mechanism; 401, clamping end; 5, conductive plate; 6, wiring terminal. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The purpose of this utility model is to provide a fuse base and a fuse to solve the problems existing in the prior art, ensure the installation accuracy and stability of the socket, reduce the risk of the clamping mechanism falling off, and ensure the stability of the fuse performance.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figure 1 As shown, this embodiment provides a fuse base 100, including a base 1, a socket 2, a positioning member 3, and a clamping mechanism 4. The socket 2 consists of two parts, with the first end of each socket 2 mounted on the base 1 and the second end of each socket 2 having a first electrode plate 201 and a second electrode plate 202. The positioning member 3 corresponds to each socket 2, and is mounted on the base 1. A gap is left between the first end of each positioning member 3 and the first end of the corresponding socket 2. The first electrode and second electrode of each socket 2 are respectively engaged with the second end of the corresponding positioning member 3. The clamping mechanism 4 corresponds to each socket 2, and is clamped between the first end of the corresponding positioning member 3 and the first end of the corresponding socket 2. The two clamping ends 401 of each clamping mechanism 4 are located outside the corresponding gap. One clamping end 401 of each clamping mechanism 4 abuts against the side of the corresponding first electrode plate 201 away from the second electrode plate 202, and the other clamping end 401 of each clamping mechanism 4 abuts against the side of the corresponding second electrode plate 202 away from the first electrode plate 201.

[0029] One end of the socket 2 is set on the base 1. The first electrode plate 201 and the second electrode plate 202 of each socket 2 are engaged with the positioning member 3. The positioning member 3 can position and limit the first electrode plate 201 and the second electrode plate 202, ensuring the installation accuracy and stability of the socket 2, thereby ensuring the stability of the performance. The middle part of the clamping mechanism 4 passes through the gap between the positioning member 3 and the socket 2 and is limited between the positioning member 3 and the socket 2, reducing the risk of the clamping mechanism 4 falling off and ensuring the stability of the fuse performance.

[0030] In this embodiment, each first electrode plate 201 and each second electrode plate 202 includes a working part 203 and a fixing part 204 connected to each other. The two fixing parts 204 of each socket 2 are arranged opposite to each other. One clamping end 401 of each clamping mechanism 4 abuts against the fixing part 204 of the corresponding first electrode plate 201, and the other clamping end 401 of each clamping mechanism 4 abuts against the fixing part 204 of the corresponding second electrode plate 202. The two fixing parts 204 of each socket 2 are respectively engaged with the corresponding positioning member 3. The contacts of the fuse are arranged between the two fixing parts 204 of each socket 2. The two clamping ends 401 of the clamping mechanism 4 can apply force to the outer side of the two fixing parts 204 of each socket 2, so that the first electrode plate 201 and the second electrode plate 202 of each socket 2 are biased towards each other, thereby clamping the contacts between the first electrode plate 201 and the second electrode plate 202.

[0031] In a preferred embodiment, each first electrode plate 201 and each second electrode plate 202 are L-shaped.

[0032] In this embodiment, each positioning member 3 has two positioning parts at its second end. Each positioning part includes a support part 301 and a locking strip 302. The two support parts 301 of each positioning member 3 are respectively disposed on the side of the two fixing parts 204 of each socket 2 away from the clamping mechanism 4. The locking strip 302 of each positioning part is disposed on the side of the corresponding support part 301 close to the clamping mechanism 4. Each fixing part 204 of each socket 2 is clamped between the support part 301 and the locking strip 302 of the corresponding positioning part. That is, there is a gap between the locking strip 302 and the corresponding support part 301 for installing the fixing part 204. The end of the fixing part 204 away from the corresponding working part 203 can extend into the space between the locking strip 302 and the corresponding support part 301. The outer wall of the fixing part 204 away from the clamping mechanism 4 and the outer wall of the fixing part 204 close to the clamping mechanism 4 respectively contact the support part 301 and the locking strip 302, thereby limiting the fixing part 204 and ensuring the installation stability of the socket 2.

[0033] In this embodiment, each positioning component 3 includes an integrally formed positioning plate 304 and a positioning part. A connecting plate 305 is provided between the positioning part's locking strip 302 and the positioning plate 304. Each connecting plate 305 is disposed on the side of the corresponding fixing part 204 away from the contact. The connecting plate 305 is bent toward the side closer to the clamping mechanism 4. One end of the locking strip 302 is connected to the connecting plate 305, and the other end of the locking strip 302 extends toward the side closer to the corresponding working part 203 so that the locking strip 302 can hook onto the fixing plate.

[0034] In this embodiment, two conductive plates 5 are also included. The two conductive plates 5 are integrally formed with the two sockets 2, and each conductive plate 5 is fixedly connected to the base 1. The installation of the conductive plates 5 and the base 1 is completed, which also realizes the installation of the sockets 2 and the base 1. The structure is simple and easy to assemble and disassemble. As a preferred embodiment, the conductive plates 5 and the sockets 2 form a certain angle, which is formed by bending the same material.

[0035] In this embodiment, the two positioning members 3 are detachably fixedly connected to the two conductive plates 5 respectively. By moving the positioning members 3 from the second end of the socket 2 toward the base 1, the fixing part 204 can be inserted between the corresponding support part 301 and the clip 302. Then, the positioning members 3 are installed on the conductive plates 5, making the installation of the socket 2 more convenient and quick, and improving the installation efficiency.

[0036] In this embodiment, each conductive plate 5 is provided with mounting holes, preferably square holes, and each positioning member 3 has a protrusion 303 at its first end, with two protrusions 303 respectively inserted into two mounting holes. The conductive plate 5 and the positioning member 3 are fixedly connected by an interference fit, resulting in a simple structure.

[0037] In this embodiment, the base 1 is made of alumina ceramic. Alumina ceramic has high mechanical strength and good high-temperature resistance, corrosion resistance, and insulation properties, which can improve the mechanical and electrical properties of the base 1. Preferably, the base 1 is made of 95% alumina.

[0038] In this embodiment, each socket 2 is made of pure copper, which has high heat dissipation capacity and can effectively improve the operating temperature rise of the fuse. It is suitable for AC and DC systems with rated voltage up to AC 1000V, DC 440V, and rated current up to 160A.

[0039] In this embodiment, each clamping mechanism 4 is a spring coil.

[0040] In this embodiment, the base 1 is provided with two stepped holes 101 for mounting the base 1 to the part to be installed. Each conductive plate 5 has a terminal block 6 on its outer side.

[0041] The fuse base 100 of this embodiment is applicable to all knife-type contact fuses with a size of 00.

[0042] Example 2

[0043] This embodiment provides a fuse, including a fuse element and two fuse bases 100 as described in Embodiment 1. The fuse element is disposed on the base 1. One contact of the fuse element is connected to the first electrode plate 201 and the second electrode plate 202 of a socket 2, and the other contact of the fuse element is connected to the first electrode plate 201 and the second electrode plate 202 of another socket 2. The first electrode plate 201 and the second electrode plate 202 of each socket 2 can clamp the corresponding contact under the tension force of the corresponding clamping mechanism 4.

[0044] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A fuse base, characterized in that: Includes a base, socket, positioning element, and clamping mechanism, wherein: There are two sockets, and the first end of each socket is disposed on the base, and the second end of each socket has a first electrode plate and a second electrode plate; The positioning element corresponds to the socket one by one. Each positioning element is disposed on the base. A gap is left between the first end of each positioning element and the first end of the corresponding socket. The first electrode and the second electrode of each socket are respectively engaged with the second end of the corresponding positioning element. The clamping mechanism corresponds to the socket one by one. Each clamping mechanism is clamped between the first end of the corresponding positioning member and the first end of the corresponding socket. The two clamping ends of each clamping mechanism are located outside the corresponding gap. One clamping end of each clamping mechanism abuts against the side of the corresponding first electrode plate away from the second electrode plate, and the other clamping end of each clamping mechanism abuts against the side of the corresponding second electrode plate away from the first electrode plate.

2. The fuse base according to claim 1, characterized in that: Each first electrode plate and each second electrode plate includes a working part and a fixing part connected to each other, and the two fixing parts of each socket are arranged opposite to each other; one clamping end of each clamping mechanism abuts against the fixing part of the corresponding first electrode plate, and the other clamping end of each clamping mechanism abuts against the fixing part of the corresponding second electrode plate; the two fixing parts of each socket are respectively engaged with the corresponding positioning member.

3. The fuse base according to claim 2, characterized in that: Each of the positioning members has two positioning portions at its second end. Each positioning portion includes a support portion and a locking strip. The two support portions of each positioning member are respectively disposed on the side of the two fixing portions of each socket away from the clamping mechanism. The locking strip of each positioning portion is disposed on the side of the corresponding support portion close to the clamping mechanism. Each fixing portion of each socket is clamped between the support portion and the locking strip of the corresponding positioning portion.

4. The fuse base according to claim 3, characterized in that: It also includes two conductive plates, which are integrally formed with the two sockets respectively, and each conductive plate is fixedly connected to the base.

5. The fuse base according to claim 4, characterized in that: The two positioning elements are respectively detachably fixedly connected to the two conductive plates.

6. The fuse holder according to claim 5, characterized in that: Each of the conductive plates is provided with a mounting hole, and each of the positioning members has a protrusion at its first end, with the two protrusions respectively inserted into the two mounting holes.

7. The fuse base according to claim 1, characterized in that: The base is made of alumina ceramic.

8. The fuse base according to claim 1, characterized in that: All the sockets mentioned are made of pure copper.

9. The fuse holder according to claim 1, characterized in that: Each of the clamping mechanisms is a spring coil.

10. A fuse, characterized in that: The device includes a fuse element and two fuse bases as described in any one of claims 1 to 9. The fuse element is disposed on the base. One contact of the fuse element is connected to the first electrode plate and the second electrode plate of one of the sockets, and the other contact of the fuse element is connected to the first electrode plate and the second electrode plate of another socket. The first electrode plate and the second electrode plate of each socket can clamp the corresponding contact under the tension force of the corresponding clamping mechanism.

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