New energy automobile ceramic fuse protection assembly structure

Abstract

The utility model relates to the technical field of ceramic fuses, in particular to a new energy automobile ceramic fuse protection assembly structure which comprises a fuse body, round pipes are arranged on the end faces of the two sides of the fuse body respectively, fixing sleeves are arranged on the outer end faces of the round pipes, rotating cylinders are rotationally installed in the fixing sleeves, and the rotating cylinders are fixedly connected with the fuse body. A spiral column is assembled on the inner side of the rotating cylinder in a spiral transmission mode, a sealing plate is arranged at the front end of the spiral column, a through hole is formed in the pipe wall of the circular pipe, a conductive terminal is inserted into the through hole, and the sealing plate axially translates along the pipe wall of the circular pipe and presses the conductive terminal on the exposed end portion of the conductive column to form a channel. According to the protective assembly structure provided by the utility model, the wire terminal is pressed and contacted at the end part of the conduction column in a spiral propelling manner to form a passage, so that the tight connection of the wire and the fuse can be ensured, the loosening condition is avoided, the wire can be quickly pulled out when the wire is loosened, and the operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of ceramic fuse technology, and in particular to a protective assembly structure for ceramic fuses in new energy vehicles. Background Technology

[0002] The insulation protection of ceramic fuse assemblies in circuits is crucial. Existing fuse assemblies typically connect to the positive and negative terminals of the fuse via wire terminals. However, this connection method is prone to poor contact: for example, if the terminals are not tightened or not fully inserted during installation, the contact gap will increase, leading to increased resistance and localized overheating. Furthermore, insufficient contact area between the wire and the terminal can affect conductivity. In addition, removing existing terminals requires tools such as needle-nose pliers and screwdrivers, making the operation cumbersome. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a protective assembly structure for ceramic fuses in new energy vehicles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A protective assembly structure for a ceramic fuse in a new energy vehicle includes a fuse body, with conductive posts disposed on both sides of the fuse body. A fuse element is disposed inside the fuse body, with its two sides connected to the conductive posts via wires. The ends of the conductive posts extend outward from the inside of the fuse body.

[0006] In a preferred embodiment, circular sliding holes are respectively opened at the center of the two end faces of the fuse body for the conductive post to extend outward.

[0007] The fuse body has circular tubes on both ends, and fixed sleeves on the outer ends of the circular tubes. The circular tubes and fixed sleeves are integrally formed, and the circular tubes, fixed sleeves, and the conductive post are coaxially aligned. A rotating cylinder is rotatably mounted inside the fixed sleeve, and a helical column is helically mounted on the inner side of the rotating cylinder.

[0008] In a preferred embodiment, the inner wall of the fixed sleeve is provided with a bearing sleeve, and the front end of the rotating cylinder is built into the bearing sleeve and rotates in the fixed sleeve through the bearing sleeve.

[0009] In a preferred embodiment, the length of the rotating cylinder is greater than the length of the helical column, and a straight cavity groove for the helical column to enter and exit is reserved inside the rotating cylinder. The outer surface of the rotating cylinder is provided with multiple layers of rubber anti-slip rings.

[0010] A sealing plate is provided at the front end of the spiral column. The sealing plate is spiraled into the circular tube. A through hole is opened on the wall of the circular tube for the insertion of conductive terminals. The sealing plate is axially translated along the wall of the circular tube and presses the conductive terminals against the exposed end of the conductive column to form a passage.

[0011] In a preferred embodiment, the sealing plate is a circular insulating plate that moves linearly along the pipe of the circular tube, and a sealing ring is provided around the edge of the sealing plate.

[0012] In a preferred embodiment, the tail end of the conductive terminal is connected to a wire, through which the fuse body is connected in series in the circuit.

[0013] The beneficial effects of this utility model are:

[0014] The protective assembly structure proposed in this solution solves the problem of poor contact between the wire terminals and the ceramic fuse, which leads to a decrease in the fuse's service life. By using a spiral pusher, the wire terminals are pressed against the end of the conductive post to form a passage. When tightened, the thread can produce a self-locking effect, which can ensure a tight connection between the wire and the fuse, preventing loosening or loosening, ensuring the normal use of the fuse, and extending the fuse's service life. Moreover, when loosened, the wire can be quickly pulled out, making operation more convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall assembled state of the fuse body proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the overall internal structure of the fuse proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the fixed sleeve proposed in this utility model.

[0018] In the diagram: 1. Fuse body; 2. Conductor post; 3. Round tube; 31. Through hole; 4. Fixing sleeve; 41. Bearing sleeve; 5. Rotating cylinder; 51. Anti-slip ring; 6. Spiral post; 7. Sealing plate; 8. Conductive terminal; 9. Wire. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In this embodiment, refer to Figure 1-3A protective assembly structure for a ceramic fuse in a new energy vehicle includes a fuse body 1. Conductive posts 2 are respectively arranged on both sides of the fuse body 1. A fusible element is disposed inside the fuse body 1, and both sides of the fusible element are connected to the conductive posts 2 on both sides via wires. The ends of the conductive posts 2 extend outward from the inside of the fuse body 1, and circular sliding holes for the conductive posts 2 to extend outward are respectively opened at the center of the end faces on both sides of the fuse body 1.

[0021] The fuse body 1 has a circular tube 3 on each of its two end faces, and a fixed sleeve 4 on the outer end face of the circular tube 3. The circular tube 3 and the fixed sleeve 4 are integrally formed, and the circular tube 3, the fixed sleeve 4 and the conductor post 2 are coaxially arranged. (See attached diagram) Figure 3 As shown, a rotating cylinder 5 is rotatably mounted inside the fixed sleeve 4. A bearing sleeve 41 is provided on the inner wall of the fixed sleeve 4, and the front end of the rotating cylinder 5 is built into the bearing sleeve 41 and rotates within the fixed sleeve 4 through the bearing sleeve 41. A multi-layer rubber anti-slip ring 51 is provided on the outer surface of the rotating cylinder 5.

[0022] The rotating cylinder 5 can rotate on its own. A spiral column 6 is installed on the inner side of the rotating cylinder 5 via a helical drive. The length of the rotating cylinder 5 is greater than the length of the spiral column 6, and a straight cavity groove is reserved inside the rotating cylinder 5 for the spiral column 6 to enter and exit. By rotating the rotating cylinder 5, the spiral column 6 can be moved forward or backward along the axial direction.

[0023] A sealing plate 7 is provided at the front end of the spiral column 6. The sealing plate 7 is screwed into the circular tube 3. It should be noted that the sealing plate 7 is a circular insulating plate. The sealing plate 7 moves linearly along the pipe of the circular tube 3, and a sealing rubber ring is provided around the edge of the sealing plate 7. The sealing rubber ring contacts the pipe wall of the circular tube 3 and provides a seal, which can protect the fuse body 1 and ensure its normal operation.

[0024] A through hole 31 is provided on the wall of the round tube 3 for the insertion of the conductive terminal 8. The sealing plate 7 is axially moved along the wall of the round tube 3 and presses the conductive terminal 8 against the exposed end of the conductive post 2 to form a passage. The tail of the conductive terminal 8 is connected to the wire 9, and the fuse body 1 is connected in series in the circuit through the wire 9.

[0025] When connecting the conductive terminal 8, the operator first rotates the rotating cylinder 5 to position the spiral post 6 and the sealing plate 7 at the furthest point from the conductive post 2. Then, the conductive terminal 8 is inserted into the round tube 3 through the through hole 31. Next, the rotating cylinder 5 is rotated in the opposite direction, using the sealing plate 7 to firmly press the conductive terminal 8 against the end of the conductive post 2, preventing it from loosening. This ensures the smooth operation of the entire circuit, guaranteeing the normal functioning of the fuse body 1 and effectively extending the fuse's service life. When removing the conductive terminal 8, simply remove the pressure of the sealing plate 7 to pull it out, making the operation more convenient. In this technical solution, the connection between the conductive terminal 8 and the conductive post 2 is achieved through a spiral propulsion mechanism. The self-locking characteristic of the spiral ensures reliable circuit connection, preventing loose connections, and allows for rapid connection between components, saving time and providing ease of use.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A protective assembly structure for a ceramic fuse in a new energy vehicle, comprising a fuse body (1), wherein conductive posts (2) are respectively provided on both sides of the interior of the fuse body (1), and the ends of the conductive posts (2) extend outward from the inner side of the fuse body (1), characterized in that, The fuse body (1) has a round tube (3) on each of its two end faces. The outer end face of the round tube (3) is provided with a fixed sleeve (4). A rotating cylinder (5) is rotatably installed inside the fixed sleeve (4). A spiral column (6) is screwed on the inner side of the rotating cylinder (5). A sealing plate (7) is provided at the front end of the spiral column (6). The sealing plate (7) is screwed into the round tube (3). A through hole (31) is opened on the tube wall of the round tube (3) for the insertion of a conductive terminal (8). The sealing plate (7) is axially translated along the tube wall of the round tube (3) and presses the conductive terminal (8) against the exposed end of the conductive column (2) to form a passage.

2. The protective assembly structure for a ceramic fuse in a new energy vehicle according to claim 1, characterized in that, The fuse body (1) is provided with a fuse element inside, and the two sides of the fuse element are connected to the two conductive posts (2) by wires.

3. The protective assembly structure for a ceramic fuse in a new energy vehicle according to claim 1, characterized in that, The fuse body (1) has circular sliding holes at the center of its two end faces for the conductor (2) to extend outward.

4. The protective assembly structure for a ceramic fuse in a new energy vehicle according to claim 3, characterized in that, The round tube (3) and the fixed sleeve (4) are integrally formed, and the round tube (3), the fixed sleeve (4) and the guide post (2) are coaxially arranged.

5. The protective assembly structure for a ceramic fuse in a new energy vehicle according to claim 1, characterized in that, The inner wall of the fixed sleeve (4) is provided with a bearing sleeve (41), and the front end of the rotating cylinder (5) is built into the bearing sleeve (41) and rotates in the fixed sleeve (4) through the bearing sleeve (41).

6. The protective assembly structure for a ceramic fuse in a new energy vehicle according to claim 1, characterized in that, The length of the rotating cylinder (5) is greater than the length of the spiral column (6), and a straight cavity groove for the spiral column (6) to enter and exit is reserved inside the rotating cylinder (5). The outer surface of the rotating cylinder (5) is provided with a multi-layer rubber anti-slip ring (51).

7. The protective assembly structure for a ceramic fuse in a new energy vehicle according to claim 1, characterized in that, The tail end of the conductive terminal (8) is connected to a wire (9), and the fuse body (1) is connected in series in the circuit through the wire (9).

8. The protective assembly structure for a ceramic fuse in a new energy vehicle according to claim 1, characterized in that, The sealing plate (7) is a circular insulating plate. The sealing plate (7) moves linearly along the pipe of the circular pipe (3), and a sealing ring is provided around the edge of the sealing plate (7).

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