Wiring terminal with insurance function
By designing terminals with safety function, using rotatable mounting bases and fixtures to achieve rapid replacement of the fuse device, the problems of insufficient protection of existing terminals under overvoltage conditions and low fuse replacement efficiency are solved, and the reliability and safety of the equipment are improved.
Patent Information
- Application Number
- CN202422081755.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The existing terminals lack protection function. Once an overvoltage occurs in the circuit, it may cause damage to the connected equipment. The existing fuses are troublesome to disassemble and replace after blowing, and the maintenance efficiency is inefficient.
A terminal with a safety function is designed, using a rotatable mounting base and fixture, allowing the safety device to be quickly replaced without removing the terminal, and improving the safety and maintenance of the equipment by setting up warning lights and other means.
It realizes rapid replacement of the fuse device, improves maintenance efficiency, enhances the reliability and safety of the equipment, and facilitates the monitoring of fuse status and fault handling.
Smart Images
Figure CN222953375U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electrical connection, and in particular to a wiring terminal with a fuse function. Background Art
[0002] At present, in the field of electrical connection technology, terminal blocks are commonly used as connection elements for realizing quick connection between wires. However, most existing terminal blocks lack protection functions. Once an overvoltage occurs in the circuit, if the circuit is not cut off in time, the connected equipment may be damaged.
[0003] In order to solve the overvoltage problem, in the prior art, an overvoltage protection device, such as a fuse, is usually separately provided in the circuit. Once the voltage is too large, the fuse can be blown, thereby disconnecting the circuit.
[0004] With respect to the above-mentioned related technologies, after the existing fuse is blown, it is troublesome to disassemble and replace it, and the maintenance efficiency is low. Utility Model Content
[0005] In order to quickly replace the fuse device after the fuse blows, the present application provides a wiring terminal with a fuse function.
[0006] The present application provides a wiring terminal with a fuse function, which adopts the following technical solution:
[0007] A wiring terminal with a safety function comprises a terminal body, a mounting seat rotatably arranged on the terminal body, a safety device and a fixing piece, wherein a receiving cavity for accommodating the mounting seat is provided on one side of the terminal body, a mounting groove for clamping the safety device is provided on the mounting seat, and when the mounting seat is rotatably accommodated in the accommodating cavity, the fixing piece can limit the mounting seat from rotating out of the accommodating cavity.
[0008] By adopting the above technical solution, when the fuse needs to be replaced, it is only necessary to rotate out the mounting base, remove the old fuse from under the mounting groove, replace it with a new one, and then rotate the mounting base into the accommodating cavity; there is no need to disassemble the wiring terminals, which also saves the time of installing the fuse, making replacement more convenient and quick.
[0009] Optionally, the fixing member includes a fixing block arranged on the side wall of the mounting seat, and the terminal body is provided with a fixing groove for interference fit of the fixing block. When the mounting seat is rotated and inserted into the accommodating cavity, the fixing block can be rotated and engaged in the fixing groove.
[0010] By adopting the above technical solution, this interference fit method enhances the stability of the mounting seat in the accommodating cavity, prevents loosening due to vibration or external force, and improves the reliability of the equipment.
[0011] Optionally, a handle is provided at one end of the mounting base away from the rotating shaft, and anti-slip teeth are provided on a side of the handle facing the terminal body.
[0012] By adopting the above technical solution, the grip makes it convenient for users to operate the mounting seat, and the anti-slip teeth increase the stability of the grip.
[0013] Optionally, a positioning member is further included, which can limit the rotation of the mounting seat after the mounting seat rotates out of the accommodating cavity. The positioning member is a positioning block arranged on the terminal body. A positioning groove for the positioning block to be engaged is arranged on the side wall of one end of the mounting seat close to the rotating shaft. When the mounting seat rotates out of the accommodating cavity, the positioning block can be inserted into the positioning groove.
[0014] By adopting the above technical solution, it is ensured that the mounting seat can be stably maintained in a specific position when needed, which facilitates the subsequent replacement of the safety device and improves the operating efficiency.
[0015] Optionally, the terminal body is provided with a wiring portion for connecting a wire, and a power connection buckle connected to the wiring portion, and two groups of the wiring portion and the power connection buckle are provided. The safety device includes a packaging box, a power connection head and a fuse, the fuse is provided in the packaging box, the power connection head is provided on the side wall of the packaging box, and two power connection heads are provided. When the mounting base is inserted into the accommodating cavity, the two power connection heads are respectively abutted against the two power connection buckles.
[0016] By adopting the above technical solution, a fast and reliable electrical connection between the safety device and the wiring terminal is achieved, thereby ensuring the safe operation of the circuit.
[0017] Optionally, the safety device further comprises a spring, wherein the spring is sleeved on the outside of the power connection head, and when the mounting seat is inserted into the accommodating cavity, the spring abuts against the power connection buckle, and at this time the spring is in a compressed state.
[0018] By adopting the above technical solution, the compression force of the spring ensures close contact between the electrical connection head and the electrical connection buckle, reduces contact resistance, and improves the stability of the electrical connection.
[0019] Optionally, the safety device further includes a warning light, which lights up when the fuse blows.
[0020] By adopting the above technical solution, an intuitive fuse status indication is provided, which facilitates timely detection and handling of circuit faults, thereby improving the safety and maintainability of the equipment.
[0021] Optionally, the mounting seat is provided with a limiting block on the bottom wall of the mounting groove, the side wall of the packaging box is provided with a limiting groove for the limiting block to be inserted, the end of the limiting block is provided with an anti-slip block, and the packaging box is provided with an anti-slip groove for the anti-slip block to be clamped.
[0022] By adopting the above technical solution, the secure installation of the safety device on the mounting seat is ensured, and the accidental falling of the safety device during the rotation of the mounting seat is prevented.
[0023] Optionally, the terminal body includes a shell and a cover body covering the shell, the shell is provided with a slot for placing the wiring part, the shell is provided with a limiting rib on the bottom wall of the slot, and when the cover body is covered on the shell, the limiting rib is tightly pressed against the wiring part.
[0024] By adopting the above technical solution, the tightening effect on the clamping part is improved to prevent the clamping part from sliding downward during use, thereby improving the stability of the equipment.
[0025] In summary, the present application includes at least one of the following beneficial effects:
[0026] 1. By installing the safety device package on the mounting base and connecting the mounting base in a rotating manner, the safety device can be replaced by rotating the mounting base, which makes replacement more convenient and quick;
[0027] 2. By setting the warning light, you can intuitively understand the fuse status, which is convenient for timely detection and handling of circuit faults. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;
[0029] Figure 2 It is a schematic diagram of the terminal body in the open state;
[0030] Figure 3 Schematic diagram of the mounting base in the rotated-out state;
[0031] Figure 4 It is a schematic diagram of the explosion structure of the safety device.
[0032] Explanation of the accompanying drawings: 1. Terminal body; 11. Accommodating cavity; 12. Fixing groove; 13. Shell; 131. Limiting rib; 14. Cover body; 2. Mounting seat; 21. Positioning groove; 22. Handle; 23. Limiting block; 24. Anti-drop block; 3. Safety device; 31. Packaging box; 32. Electrical connector; 33. Spring; 4. Fixing piece; 41. Fixing block; 5. Positioning piece; 51. Positioning block; 6. Wiring part; 61. Positioning frame; 62. Adjusting bolt; 63. Tightening piece; 64. Connecting piece; 7. Electrical connection buckle. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-4 This application is described in further detail.
[0034] The present application embodiment discloses a wiring terminal with a safety function. Figure 1 and Figure 2 The terminal comprises a terminal body 1, a mounting seat 2, a safety device 3 and a fixing member 4, wherein the mounting seat 2 is rotatably arranged on the terminal body 1, a receiving cavity 11 for accommodating the mounting seat 2 is provided on one side of the terminal body 1, and a mounting groove for clamping the safety device 3 is provided on the mounting seat 2; when the mounting seat 2 is rotatably accommodated in the receiving cavity 11, the fixing member 4 can limit the mounting seat 2 from rotating out of the receiving cavity 11.
[0035] When in use, the safety device 3 and the mounting base 2 are both located in the accommodating cavity 11. The safety device 3 protects the circuit. When an overvoltage occurs in the circuit, the safety device 3 can disconnect the circuit to protect the connected equipment. After the safety device 3 is used, the mounting base 2 can be rotated out of the accommodating cavity 11, and the safety device 3 can be replaced conveniently. After the replacement is completed, the mounting base 2 can be further rotated into the accommodating cavity 11.
[0036] Reference Figure 1 and Figure 2 Specifically, in this embodiment, the terminal body 1 includes a housing 13 and a cover 14 covering the housing 13, and the housing 13 and the cover 14 can be buckled and locked by means of buckles or bolts; the accommodating cavity 11 is located between the housing 13 and the cover 14. A rotating shaft is fixed on the housing 13, and one end of the mounting seat 2 is rotatably connected to the rotating shaft, so that the mounting seat 2 is rotatably connected and can be rotated around the rotating shaft to be inserted into the accommodating cavity 11; in order to facilitate the control of the mounting seat 2, the mounting seat 2 includes an inserting portion and a force applying portion. When the mounting seat 2 is inserted into the accommodating cavity 11, the inserting portion is completely received in the accommodating cavity 11, and the force applying portion is located outside the accommodating cavity 11.
[0037] Reference Figure 2 and Figure 3The fixing member 4 is a fixing block 41 integrally formed on the side wall of the mounting seat 2, and a fixing groove 12 for the interference rod of the fixing block 41 to engage is provided on the terminal body 1; specifically, the fixing block 41 is located at the plug-in portion of the mounting seat 2, and the fixing block 41 is rectangular as a whole, and has an inclined surface on the side facing the accommodating cavity 11, which is convenient for interference insertion into the fixing groove 12; the side away from the accommodating cavity 11 has a rounded corner, and when the mounting seat 2 is subjected to an external force to rotate outward, the fixing block 41 can be pulled out of the fixing groove 12 after being subjected to the force. In order to facilitate the rotation of the mounting seat 2, a handle 22 is connected to the end of the force-applying portion away from the rotating shaft, and the handle 22 is bent and extended relative to the mounting seat 2 to an angle that is convenient for force application, and the side of the handle 22 facing the terminal body 1, that is, the force-applying surface of the handle 22 is provided with anti-slip teeth.
[0038] Reference Figure 2 and Figure 3 When the mounting seat 2 rotates out of the accommodating cavity 11 to replace the safety device 3, in order to avoid the mounting seat 2 from rotating and affecting the replacement efficiency, in an optional embodiment, a positioning member 5 can also be provided for restriction. Specifically, the positioning member 5 is a positioning block 51 fixed in the terminal body 1, and the side of the positioning block 51 facing the mounting seat 2 is an arc surface. A positioning groove 21 for the positioning block 51 to engage is provided on the outer wall of one end of the mounting seat 2 close to the rotating shaft. When the mounting seat 2 rotates and makes its plug-in part completely out of the accommodating cavity 11, the positioning block 51 can be inserted into the positioning groove 21. Preferably, when the mounting seat 2 rotates 120°, the positioning block 51 is inserted into the positioning groove 21, so that the safety device 3 can be replaced conveniently.
[0039] Reference Figure 2 and Figure 3 In this embodiment, a wiring part 6 for connecting a wire and an electrical connection buckle 7 connected to the wiring part 6 are provided in the terminal body 1. The wiring part 6 and the electrical connection buckle 7 are symmetrically provided in two groups. The safety device 3 is provided between the two electrical connection buckles 7 and electrically connects the two electrical connection buckles 7 to form a complete electrical circuit. The safety device 3 includes a packaging box 31, an electrical connection head 32 and a fuse. The fuse is provided inside the packaging box 31 (not specifically shown in the figure), and the electrical connection head 32 is fixed on the side wall of the packaging box 31, and two electrical connection heads 32 are provided, which correspond to the two electrical connection buckles 7 one by one. When the mounting seat 2 is inserted into the accommodating cavity 11, the two electrical connection heads 32 can respectively abut against the two electrical connection buckles 7 to form an electrical connection.
[0040] Furthermore, the safety device 3 also includes a spring 33, and two springs 33 are also provided and are respectively sleeved on the outside of the power terminal 32. One end of the spring 33 abuts against the power terminal 32, and the other end extends toward the power connection buckle 7. When the mounting seat 2 is located in the accommodating cavity 11, the end face of the spring 33 abuts against the power connection buckle 7, and at this time the spring 33 is in a compressed state, so that when the terminal is shaken, the spring 33 and the elastic force can ensure that it is always in contact with the power connection buckle 7, so as to ensure a stable connection between the power terminal 32 and the power connection buckle 7.
[0041] In an optional embodiment, the safety device 3 also includes a warning light (not shown in the figure), which is also arranged in the packaging box 31. When the circuit is connected, the warning light is in an off state. When an overvoltage fuse is blown, the circuit where the warning light is located is connected and the warning light lights up to remind the operator to pay attention to circuit safety.
[0042] Reference Figure 2 and Figure 4 When the safety device 3 needs to be replaced, it is only necessary to place the packaging box 31 in the installation groove, and then transfer the packaging box 31 into the accommodating cavity 11 along with the mounting seat 2; in order to improve the stability of the safety device 3, a limit block 23 can also be fixed on the bottom wall of the mounting groove of the mounting seat 2, and the end of the limit block 23 is bent to form an anti-dropping block 24, and the limit block 23 and the anti-dropping block 24 are made of elastic material, preferably PC material; correspondingly, a limit groove for the limit block 23 to be plugged in and an anti-dropping groove for the anti-dropping block 24 to be plugged in are provided on the side wall of the packaging box 31, and through their cooperation, when the packaging box 31 is placed in the installation groove, the movement of the packaging box 31 can be limited, so that when the mounting seat 2 is rotated, the stability of the safety device 3 can be maintained.
[0043] Reference Figure 2 and Figure 3 In this embodiment, the wiring portion 6 includes a positioning frame 61, an adjusting bolt 62, a clamping piece 63 and a connecting piece 64, wherein the positioning frame 61 is a metal frame with openings on both sides, one end of the connecting piece 64 is connected to the power connection buckle 7, and the other end extends into the positioning frame 61; the clamping piece 63 is in a "C" shape, the upper end of which is in contact with the head of the adjusting bolt 62, and the lower end extends and is inserted into the positioning frame 61. The connecting piece 64 and the part of the clamping piece 63 in the positioning frame 61 are arranged relatively parallel. When the clamping piece 63 moves toward the connecting piece 64 driven by the adjusting bolt 62, it can clamp the wire, thereby connecting and fixing the wire.
[0044] The housing 13 is provided with a corresponding slot for placing the wiring part 6. When the cover 14 is covered on the housing 13 and the lower end of the terminal body 1 is clamped on the corresponding guide rail and arranged vertically, the wiring part 6 may slide downward along the slot, causing the wiring part 6 to be displaced. In order to limit the movement of the wiring part 6, the housing 13 is once formed with a limiting rib 131 on the bottom wall of the slot. The cross section of the limiting rib 131 is a raised semicircular shape, so that when the cover 14 is covered on the housing 13, the limiting rib 131 can press against the wiring part 6 to reduce the possibility of the wiring part 6 sliding downward. At the same time, since the contact surface between the limiting rib 131 and the wiring part 6 is limited, the friction force is small, and it will not affect the adjustment of the up and down movement of the pressing piece 63.
[0045] The implementation principle of a wiring terminal with a safety function in an embodiment of the present application is as follows: when using the wiring terminal, first rotate the mounting base 2 out through the handle 22, and then align the limit block 23 with the limit groove on the packaging box 31 and insert it, so as to fix the safety device 3 on the mounting base 2; when the mounting base 2 is rotated and inserted into the accommodating cavity 11, the safety device 3 is installed, and at this time, the corresponding guides are respectively connected to the two wiring parts 6 to connect the circuit.
[0046] When the circuit is over-voltage, the fuse blows and the warning light comes on; just follow the above steps to rotate out the mounting base 2 and replace the safety device 3, and then you can continue to use it.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A terminal block with a safety function, characterized in that: The invention comprises a terminal body (1), a mounting seat (2) rotatably arranged on the terminal body (1), a safety device (3) and a fixing member (4); a receiving cavity (11) for receiving the mounting seat (2) is provided on one side of the terminal body (1); a mounting groove for mounting the safety device (3) is provided on the mounting seat (2); when the mounting seat (2) is rotatably received in the receiving cavity (11), the fixing member (4) can limit the mounting seat (2) from rotating out of the receiving cavity (11).
2. A wiring terminal with a safety function according to claim 1, characterized in that: The fixing member (4) comprises a fixing block (41) arranged on the side wall of the mounting seat (2); the terminal body (1) is provided with a fixing groove (12) for interference fit of the fixing block (41); when the mounting seat (2) is rotated and inserted into the accommodating cavity (11), the fixing block (41) can be rotated and engaged in the fixing groove (12).
3. The wiring terminal with a safety function according to claim 1, characterized in that: A grip (22) is provided at one end of the mounting seat (2) away from the rotating shaft, and anti-slip teeth are provided on a side of the grip (22) facing the terminal body (1).
4. The connection terminal with a fuse function according to claim 1, characterized in that: The terminal body (1) further comprises a positioning member (5), and when the mounting seat (2) is rotated out of the accommodating cavity (11), the positioning member (5) can limit the rotation of the mounting seat (2); the positioning member (5) is a positioning block (51) arranged on the terminal body (1); a positioning groove (21) for the positioning block (51) to be engaged is arranged on a side wall at one end of the mounting seat (2) close to the rotating shaft; when the mounting seat (2) is rotated out of the accommodating cavity (11), the positioning block (51) can be inserted into the positioning groove (21).
5. A wiring terminal with a fuse function according to any one of claims 1 to 4, characterized in that: The terminal body (1) is provided with a wiring portion (6) for connecting a wire, and an electrical connection buckle (7) connected to the wiring portion (6), and two groups of the wiring portion (6) and the electrical connection buckle (7) are provided. The safety device (3) comprises a packaging box (31), an electrical connection head (32) and a fuse, and the fuse is provided in the packaging box (31). The electrical connection head (32) is provided on a side wall of the packaging box (31). Two electrical connection heads (32) are provided. When the mounting seat (2) is inserted into the accommodating cavity (11), the two electrical connection heads (32) are respectively in contact with the two electrical connection buckles (7).
6. The connection terminal with a safety function according to claim 5, characterized in that: The safety device (3) further comprises a spring (33), wherein the spring (33) is sleeved on the outside of the power connection head (32), and when the mounting seat (2) is inserted into the accommodating cavity (11), the spring (33) abuts against the power connection buckle (7), and at this time the spring (33) is in a compressed state.
7. The connection terminal with a safety function according to claim 5, characterized in that: The safety device (3) also includes a warning light, which lights up when the fuse is blown.
8. The connection terminal with a safety function according to claim 5, characterized in that: The mounting seat (2) is provided with a limit block (23) on the bottom wall of the mounting groove, a limit groove for the limit block (23) to be inserted is provided on the side wall of the packaging box (31), an anti-drop block (24) is provided at the end of the limit block (23), and an anti-drop groove for the anti-drop block (24) to be clamped is provided in the packaging box (31).
9. The connection terminal with a safety function according to claim 8, characterized in that: The terminal body (1) comprises a shell (13) and a cover body (14) covering the shell (13); the shell (13) is provided with a slot for accommodating the wiring portion (6); the shell (13) is provided with a limiting rib (131) on the bottom wall of the slot; when the cover body (14) covers the shell (13), the limiting rib (131) is tightly abutted against the wiring portion (6).