An inverter with an automatic shut-off mechanism
By installing an automatic shutdown mechanism with fuses and temperature control switches at the inverter terminals, the problem of damage caused by overheating and short circuits during the conversion process of traditional inverters is solved, thus achieving equipment safety protection and extending its lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG YIJURUN NEW ENERGY CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional inverters are prone to unexpected situations such as over-circuiting and short circuits during the conversion process, which can lead to equipment damage.
An automatic shutdown mechanism, including a fuse and a temperature control switch, is installed at the inverter's terminals to automatically disconnect the circuit in case of a break or excessive temperature, thus protecting the circuit safety.
The automatic shutdown mechanism effectively prevents the inverter from being damaged due to unexpected situations, thus extending the service life of the equipment.
Smart Images

Figure CN224502907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inverter technology, specifically to an inverter with an automatic shutdown mechanism. Background Technology
[0002] An inverter is a converter that transforms direct current (DC) energy into alternating current (AC) energy with fixed frequency and voltage or adjustable frequency and voltage. It consists of an inverter bridge, control logic, and filter circuits. Widely used in the power industry, it plays a crucial role in photovoltaic systems, converting the DC power generated by solar panels into AC power to meet the electricity demands of household appliances and the power grid. Furthermore, it can switch devices on and off within a defined timeframe, providing output and acting as a circuit protector. However, traditional inverters are prone to unexpected situations during conversion, such as overheating and short circuits, which can severely damage the inverter. Utility Model Content
[0003] The purpose of this invention is to provide an inverter with an automatic shutdown mechanism to solve the problem mentioned in the background art, where unexpected situations such as overheating and short circuits can occur during the conversion process of traditional inverters, which can lead to inverter damage in severe cases.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an inverter with an automatic shutdown mechanism, comprising an inverter body and a start switch, a USB interface, a socket, and two connectors on the inverter body. One end of the inverter body is provided with an integrated panel, on which the start switch, USB interface, and socket are all located. Automatic shutdown mechanisms are fixedly installed at both connectors on the inverter body. Each automatic shutdown mechanism includes a mounting plate. A fuse is fixedly installed at the top of the front side of the mounting plate, and a mounting box is fixedly installed at the bottom of the front side of the mounting plate. A temperature control switch is fixedly installed inside the mounting box. A first wire connected to the fuse is connected to one port of the temperature control switch, and a second wire is connected to the other port of the temperature control switch. The temperature control switch is connected to a terminal block extending to the outside via the second wire. A threaded rod is fixedly provided on the terminal block, and a nut is threaded onto the threaded rod. A connecting wire located between the terminal block and the nut is sleeved on the threaded rod.
[0005] Preferably, a label is attached to one side of the top of the inverter body, and multiple evenly distributed heat dissipation slots are provided on the top and bottom of the inverter body. The label is used to display inverter information, the heat dissipation slots improve heat dissipation performance, and the inverter body is installed and fixed by two mounting brackets.
[0006] Preferably, mounting bases are fixedly installed on both sides of the bottom of the inverter body for mounting and fixing the inverter.
[0007] Preferably, the panel is snapped into place with a dust cover, and the dust cover has a cable passage opening. The dust cover protects the panel from dust, and the cable passage opening is used for the transmission of cables.
[0008] Preferably, two screw holes are fixedly connected to both sides of the mounting plate. The screw holes are connected to the inverter body by screws and are used for the installation and fixation of the automatic shutdown mechanism.
[0009] Preferably, the top of the fixing box is fitted with a lid, which closes the fixing box.
[0010] Preferably, both ends of the two connecting wires are provided with connecting holes, one of the connecting holes is connected to the threaded rod, and the connecting wires are connected through the connecting hole.
[0011] Preferably, the two terminals of the inverter body are electrically connected to two fuses respectively. Both fuses are electrically connected to a temperature control switch through a first wire. Both temperature control switches are electrically connected to a connecting line through a second wire and a terminal block. The fuses are of model XRNT1-12 and the temperature control switches are of model HC03.
[0012] Compared with the prior art, the beneficial effects of this utility model are: an automatic shutdown mechanism is installed at the joint, and a fuse and a temperature control switch are set on the line. When a circuit break occurs, the line is automatically disconnected by the fuse, and when the temperature is too high, the line is automatically disconnected by the temperature control switch, thus automatically shutting off the line, protecting the circuit safety, ensuring the safety of the inverter, and extending the service life of the inverter. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the inverter body and dust cover of this utility model;
[0015] Figure 3 This is a schematic diagram of the automatic shut-off mechanism of this utility model;
[0016] Figure 4 This is a cross-sectional view of the fixing box of this utility model;
[0017] Figure 5 This is a partially enlarged view of the present invention.
[0018] In the diagram: 1. Inverter body; 2. Automatic shutdown mechanism; 3. Dust cover; 4. Mounting base; 5. Connecting wire; 6. Label; 7. Panel; 8. Mounting plate; 9. Fuse; 10. Fixing box; 11. Connecting hole; 12. Box cover; 13. Nut; 14. Screw hole seat; 15. Terminal block; 16. Threaded rod; 17. Temperature control switch; 18. Socket; 19. Start switch; 20. USB interface; 21. Heat dissipation groove; 22. First wire; 23. Second wire; 24. Through port. 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. 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.
[0020] Please see Figure 1-5 This utility model provides an inverter with an automatic shutdown mechanism, including an inverter body 1 and a start switch 19, a USB interface 20, a socket 18 and two connectors on the inverter body 1. One end of the inverter body 1 is provided with an integrated panel 7. The start switch 19, USB interface 20 and socket 18 on the inverter body 1 are all provided on the panel 7. The two connectors on the inverter body 1 are fixedly installed with an automatic shutdown mechanism 2. The panel 7 is snapped into a dust cover 3. The dust cover 3 has a cable passage 24.
[0021] In use, the start switch 19, USB interface 20, socket 18 and two connectors are the common structure of inverters. Now the start switch 19, USB interface 20 and socket 18 are set on the panel 7 which is integrated with the inverter body 1. The dust cover 3 is snapped on the panel 7 to provide dust protection. The cable port 24 is used to pass the line. An automatic shut-off mechanism 2 is installed at the connector to automatically shut off the line.
[0022] Both automatic shutdown mechanisms 2 include mounting plates 8. A fuse 9 is fixedly mounted on the top of the front of the mounting plate 8, and a mounting box 10 is fixedly mounted on the bottom of the front of the mounting plate 8. A temperature control switch 17 is fixedly mounted inside the mounting box 10. A first wire 22 connected to the fuse 9 is connected to one port of the temperature control switch 17, and a second wire 23 is connected to the other port of the temperature control switch 17. The temperature control switch 17 is connected to a terminal block 15 extending to the outside through the second wire 23. A threaded rod 16 is fixedly provided on the terminal block 15, and a nut 13 is threadedly connected to the threaded rod 16. A connecting line 5 located between the terminal block 15 and the nut 13 is sleeved on the threaded rod 16. Two screw hole seats 14 are fixedly connected to both sides of the mounting plate 8. The screw hole seats 14 are connected to the inverter body 1 by screws. Both ends of the two connecting lines 5 are provided with connecting holes 11, one of which is connected to the threaded rod 16.
[0023] In use, the mounting plate 8 is fixed on the inverter body 1, the fuse 9 and the mounting box 10 are fixed on the mounting plate 8, the temperature control switch 17 is installed in the mounting box 10, the temperature control switch 17 is connected to the terminal block 15 on the mounting box 10, and the terminal block 15 is connected to the connecting wire 5 through the threaded rod 16 and the nut 13.
[0024] A label 6 is attached to one side of the top of the inverter body 1. Multiple evenly distributed heat dissipation slots 21 are provided on the top and bottom of the inverter body 1. Mounting bases 4 are fixedly installed on both sides of the bottom of the inverter body 1. The label 6 is used to display inverter information. The heat dissipation slots 21 improve heat dissipation performance. The inverter body 1 is installed and fixed by two mounting bases 4.
[0025] A cover 12 is installed on the top of the fixing box 10, and the fixing box 10 is closed by the cover 12.
[0026] The two connectors of the inverter body 1 are electrically connected to two fuses 9 respectively. Both fuses 9 are electrically connected to the temperature control switch 17 through the first wire 22. Both temperature control switches 17 are electrically connected to the connecting line 5 through the second wire 23 and the terminal block 15. The fuses 9 and the temperature control switches 17 are set on the line. When a circuit is broken, the line is automatically disconnected by the fuses 9. When the temperature is too high, the line is automatically disconnected by the temperature control switches 17.
[0027] In practical use, this utility model provides an inverter with an automatic shutdown mechanism. The dust cover 3 is snapped onto the panel 7 to provide dust protection. The cable port 24 is used for the passage of the line. The automatic shutdown mechanism 2 is installed at the connector. The fuse 9 and the temperature control switch 17 of the automatic shutdown mechanism 2 are set on the line. When a circuit break occurs, the line is automatically disconnected by the fuse 9. When the temperature is too high, the line is automatically disconnected by the temperature control switch 17, thereby realizing automatic shutdown of the line, protecting the circuit safety and improving safety performance.
[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An inverter with an automatic shutdown mechanism, comprising an inverter body (1) and a start switch (19), a USB interface (20), a socket (18), and two connectors on the inverter body (1), characterized in that: One end of the inverter body (1) is provided with an integrated panel (7). The start switch (19), USB interface (20) and socket (18) on the inverter body (1) are all provided on the panel (7). Automatic shutdown mechanism (2) is fixedly installed at both connectors on the inverter body (1). Both automatic shutdown mechanisms (2) include a mounting plate (8). A fuse (9) is fixedly installed on the top of the front of the mounting plate (8). A fixing box (10) is fixedly installed on the bottom of the front of the mounting plate (8). The fixing box (10) is fixedly installed inside. A temperature control switch (17) is provided. One port of the temperature control switch (17) is connected to a first wire (22) connected to a fuse (9). The other port of the temperature control switch (17) is connected to a second wire (23). The temperature control switch (17) is connected to a terminal block (15) extending to the outside through the second wire (23). A threaded rod (16) is fixedly provided on the terminal block (15). A nut (13) is threadedly connected to the threaded rod (16), and a connecting wire (5) located between the terminal block (15) and the nut (13) is sleeved on the threaded rod (16).
2. An inverter with an automatic shutdown mechanism according to claim 1, characterized in that: A label (6) is attached to one side of the top of the inverter body (1), and multiple evenly distributed heat dissipation slots (21) are provided on the top and bottom of the inverter body (1).
3. An inverter with an automatic shutdown mechanism according to claim 1, characterized in that: Mounting bases (4) are fixedly installed on both sides of the bottom of the inverter body (1).
4. An inverter with an automatic shutdown mechanism according to claim 1, characterized in that: The panel (7) is engaged with the dust cover (3), and the dust cover (3) has a cable port (24).
5. An inverter with an automatic shutdown mechanism according to claim 1, characterized in that: Two screw holes (14) are fixedly connected to both sides of the mounting plate (8), and the screw holes (14) are connected to the inverter body (1) by screws.
6. An inverter with an automatic shutdown mechanism according to claim 1, characterized in that: The top of the fixing box (10) is fitted with a box cover (12).
7. An inverter with an automatic shutdown mechanism according to claim 6, characterized in that: Both ends of the two connecting lines (5) are provided with connecting holes (11), one of which is connected to the threaded rod (16).
8. An inverter with an automatic shutdown mechanism according to claim 1, characterized in that: The two connectors of the inverter body (1) are electrically connected to two fuses (9) respectively. Both fuses (9) are electrically connected to the temperature control switch (17) through the first wire (22). Both temperature control switches (17) are electrically connected to the connecting line (5) through the second wire (23) and the terminal block (15).