A multi-voltage compatible power input interface device for an inverter welder
By using a multi-voltage compatible power input interface device for inverter welding machines, a stable connection between the plug and the socket is achieved through a limiting rod and elastic elements. This solves the problem that traditional inverter welding machine power input interfaces cannot adapt to multiple voltages, thus improving welding quality and equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU FULM INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional inverter welding machines have a power input interface designed for single voltage compatibility, which cannot adapt to the differences in power voltage in different regions and occasions. This increases the difficulty of use and causes unstable connections, affecting welding quality and equipment safety.
A multi-voltage compatible power input interface device for an inverter welding machine was designed. By cooperating with the limiting rod and the limiting groove on the side wall of the plug, combined with multiple elastic elements, a stable connection between the plug and the socket can be achieved, adapting to various voltage environments.
It improves the connection stability between the plug and the socket, broadens the application range of the inverter welding machine, enhances welding quality and equipment safety, and facilitates use under different voltage environments.
Smart Images

Figure CN224367287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inverter welding machine technology, specifically an inverter welding machine multi-voltage compatible power input interface device. Background Technology
[0002] In modern industrial manufacturing and maintenance, inverter welding machines, as efficient and convenient welding equipment, are widely used in welding various metal materials. Inverter welding machines convert alternating current (AC) into high-frequency direct current (DC), and then, through an inverter circuit, convert it into AC or DC power suitable for welding, achieving precise control and efficient energy conversion in the welding process. With the continuous development of welding technology and the increasing diversification of application scenarios, the requirements for the power input interface of inverter welding machines are also becoming more stringent.
[0003] Traditional inverter welding machine power input interfaces are typically designed for single-voltage compatibility, meaning they can only adapt to power inputs within a specific voltage range. However, in practical applications, due to differences in power voltage standards across different regions and occasions, single-voltage compatible power input interfaces often fail to meet diverse usage needs. This not only limits the application range of inverter welding machines but also increases the difficulty and cost for users operating the welding machine in different voltage environments. Furthermore, traditional inverter welding machine power input interfaces also have certain shortcomings in connection stability. The connection between the plug and the socket often relies on a simple plugging method, lacking an effective fixing and limiting mechanism. As a result, during the welding process, factors such as vibration and external pulling can easily cause the plug to loosen or fall off, thus affecting welding quality and equipment safety. Therefore, we propose a multi-voltage compatible power input interface device for inverter welding machines. Utility Model Content
[0004] The purpose of this invention is to provide a multi-voltage compatible power input interface device for an inverter welding machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A multi-voltage compatible power input interface device for an inverter welding machine includes an inverter welding machine, a socket for inserting a plug, a cavity inside the inverter welding machine, a sliding plate slidably disposed within the cavity, a limit rod on the sliding plate, a limit groove on the side wall of the plug for cooperating with the limit rod, a fixing plate on the side wall of the inverter welding machine, a second telescopic rod on the fixing plate, a pressing plate at the end of the telescopic arm of the second telescopic rod, a pressing pad on the pressing plate, and the pressing pad connected to the side wall of the plug.
[0007] As a further embodiment of this utility model: the pressing plate is further provided with an installation cavity, a sliding rod is provided in the installation cavity, and a limit plate is slidably provided on the sliding rod.
[0008] As a further improvement of this utility model: a first telescopic rod is also provided in the cavity, and the end of the telescopic arm of the first telescopic rod is connected to the slide plate.
[0009] As a further improvement of this utility model: a second spring is also sleeved on the outside of the second telescopic rod, one end of the second spring is connected to the fixed plate, and the other end of the second spring is connected to the pressing plate.
[0010] As a further embodiment of this utility model: a first spring is sleeved on the outer side of the first telescopic rod, one end of the first spring is connected to the limiting rod, and the other end of the first spring is connected to the inner wall of the cavity.
[0011] As a further improvement of this utility model: a return spring is also sleeved on the outside of the slide rod, one end of the return spring is connected to the limiting plate, and the other end of the return spring is connected to the inner wall of the mounting cavity.
[0012] As a further improvement of this utility model: the inverter welding machine is provided with a handle on the top and a heat dissipation mesh plate is also provided on the side wall of the inverter welding machine.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. By setting a limiting rod to cooperate with the limiting groove on the side wall of the plug, and by utilizing the elasticity of elastic elements such as the first spring and the second spring, a stable and reliable connection between the plug and the socket is achieved, effectively avoiding the problem of plug loosening or falling off due to factors such as vibration and external pulling, thereby improving welding quality and the safety of equipment use.
[0015] 2. At the same time, under the action of the limiting plate, the plug can be pushed towards the socket end, thereby further improving the connection quality between the plug and the socket. It also achieves compatibility and adaptation with plugs of various voltages, meeting the usage needs of different users in different voltage environments, greatly expanding the application range of inverter welding machines, and improving the practicality and convenience of the equipment. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0017] Figure 2 This is a schematic diagram of the internal structure of the inverter welding machine in this embodiment of the present invention.
[0018] Figure 3 This is a schematic diagram of the structure shown in embodiment A of this utility model.
[0019] Figure 4 This is a schematic diagram of the structure at point B in an embodiment of this utility model.
[0020] Figure label annotations: 1. Inverter welding machine; 2. Handle; 3. Heat dissipation mesh plate; 4. Socket; 5. Plug; 6. Slide plate; 7. Limiting rod; 8. First telescopic rod; 9. First spring; 10. Fixing plate; 11. Second telescopic rod; 12. Second spring; 13. Pressing plate; 14. Pressing pad; 15. Slide rod; 16. Limiting plate; 17. Return spring. Detailed Implementation
[0021] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings and description, similar or identical parts are referred to by the same reference numerals. Furthermore, in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of the utility model. Any obvious modifications or alterations made to this utility model do not depart from its spirit and scope.
[0022] Example
[0023] Please see Figures 1-4 In this embodiment of the utility model, a multi-voltage compatible power input interface device for an inverter welding machine includes an inverter welding machine 1. The top of the inverter welding machine 1 is provided with a handle 2, which facilitates carrying the inverter welding machine 1. A heat dissipation mesh plate 3 is also provided on the side wall of the inverter welding machine 1, which can dissipate the heat generated by the inverter welding machine 1 during operation, thereby ensuring the efficiency of the inverter welding machine 1.
[0024] The inverter welding machine 1 is also equipped with a socket 4, and a plug 5 is inserted into the socket 4. The inverter welding machine 1 also has a cavity inside, and a sliding plate 6 is slidably arranged in the cavity. A limit rod 7 is provided on the sliding plate 6. A limit groove is provided on the side wall of the plug 5 to cooperate with the limit rod 7. At this time, under the action of the limit rod 7 and the limit groove, the connection quality between the plug 5 and the socket 4 is guaranteed, thereby ensuring the connection quality between the inverter welding machine 1 and the external equipment. A first telescopic rod 8 is also provided in the cavity. A first spring 9 is sleeved on the outside of the first telescopic rod 8. One end of the first spring 9 is connected to the limit rod 7, and the other end of the first spring 9 is connected to the inner wall of the cavity. At this time, under the action of the first spring 9, the connection between the limit rod 7 and the limit groove is guaranteed, thereby ensuring the connection quality between the plug 5 and the socket 4.
[0025] A fixing plate 10 is also provided on the side wall of the inverter welding machine 1. A second telescopic rod 11 is provided on the fixing plate 10. A pressing plate 13 is provided at the end of the telescopic arm of the second telescopic rod 11. A pressing pad 14 is provided on the pressing plate 13. The pressing pad 14 is connected to the side wall of the plug 5. At this time, under the action of the pressing pad 14, the plug 5 can be clamped and fixed, thereby ensuring the connection quality between the plug 5 and the socket 4. A second spring 12 is also sleeved on the outside of the second telescopic rod 11. One end of the second spring 12 is connected to the fixing plate 10, and the other end of the second spring 12 is connected to the pressing plate 13. At this time, under the action of the second spring 12, the contact quality between the pressing pad 14 and the plug 5 is ensured, thereby better connecting the plug 5 and the inverter welding machine 1.
[0026] The pressing plate 13 also has an installation cavity inside, in which a slide rod 15 is installed. A limit plate 16 is slidably mounted on the slide rod 15. Under the action of the limit plate 16, the plug 5 can be pressed towards the socket 4. A return spring 17 is also sleeved on the outside of the slide rod 15. One end of the return spring 17 is connected to the limit plate 16, and the other end of the return spring 17 is connected to the inner wall of the installation cavity. At this time, under the action of the return spring 17, the pressing quality of the limit plate 16 on the plug 5 is guaranteed.
[0027] In actual use, the user inserts plug 5 into the socket 4 on the side wall of inverter welding machine 1. During the insertion of plug 5, the limiting groove on its side wall contacts the limiting rod 7 on the sliding plate 6 inside the cavity of inverter welding machine 1. Under the elastic action of the first spring 9, the limiting rod 7 is pushed into the limiting groove on the side wall of plug 5, forming a preliminary limit and ensuring the initial connection quality between plug 5 and socket 4. One end of the first spring 9 is connected to the limiting rod 7, and the other end is connected to the inner wall of the cavity, providing a continuous pushing force for the limiting rod 7. A second telescopic rod 11 is provided on the fixed plate 10 on the side wall of inverter welding machine 1. The end of the telescopic arm of the second telescopic rod 11 is connected to a pressing plate 13. When the user presses the pressing plate 13, the second telescopic rod 11 retracts, causing the pressing plate 13 to move towards plug 5. A pressing pad 14 is provided on the pressing plate 13. The pressing pad 14 contacts the side wall of the plug 5. Under the elastic action of the second spring 12, the pressing pad 14 applies a continuous clamping force to the plug 5 to ensure the quality of the deep connection between the plug 5 and the socket 4. One end of the second spring 12 is connected to the fixed plate 10, and the other end is connected to the pressing plate 13, providing a stable thrust for the pressing plate 13. The pressing plate 13 has an installation cavity inside, and a slide rod 15 is slidably arranged in the installation cavity. A limit plate 16 is slidably arranged on the slide rod 15. When the pressing plate 13 moves towards the plug 5, the limit plate 16 contacts the plug 5, and under the elastic action of the return spring 17, it applies a pressing force to the plug 5 towards the socket 4. One end of the return spring 17 is connected to the limit plate 16, and the other end is connected to the inner wall of the installation cavity, ensuring the pressing quality of the limit plate 16 on the plug 5, and further ensuring the stable connection between the plug 5 and the socket 4. The heat generated by the inverter welding machine 1 during operation is discharged through the heat dissipation mesh plate 3 on the side wall, ensuring the efficiency of the inverter welding machine 1. The handle 2 on the top of the inverter welding machine 1 makes it convenient for users to carry the inverter welding machine 1.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A multi-voltage compatible power input interface device for an inverter welding machine, comprising an inverter welding machine (1), characterized in that, The inverter welding machine (1) is also provided with a socket (4), and a plug (5) is inserted into the socket (4). The inverter welding machine (1) is also provided with a cavity, and a sliding plate (6) is slidably arranged in the cavity. A limit rod (7) is provided on the sliding plate (6). A limit groove that works with the limit rod (7) is provided on the side wall of the plug (5). A fixing plate (10) is also provided on the side wall of the inverter welding machine (1). A second telescopic rod (11) is provided on the fixing plate (10). A pressing plate (13) is provided at the end of the telescopic arm of the second telescopic rod (11). A pressing pad (14) is provided on the pressing plate (13). The pressing pad (14) is connected to the side wall of the plug (5).
2. The inverter welding machine multi-voltage compatible power input interface device according to claim 1, characterized in that, The pressing plate (13) is also provided with an installation cavity, in which a slide rod (15) is provided, and a limit plate (16) is slidably provided on the slide rod (15).
3. The inverter welding machine multi-voltage compatible power input interface device according to claim 1, characterized in that, The cavity is also provided with a first telescopic rod (8), and the end of the telescopic arm of the first telescopic rod (8) is connected to the slide plate (6).
4. The inverter welding machine multi-voltage compatible power input interface device according to claim 1, characterized in that, A second spring (12) is also sleeved on the outside of the second telescopic rod (11). One end of the second spring (12) is connected to the fixed plate (10), and the other end of the second spring (12) is connected to the pressing plate (13).
5. The inverter welding machine multi-voltage compatible power input interface device according to claim 3, characterized in that, The first telescopic rod (8) is fitted with a first spring (9) on its outer side. One end of the first spring (9) is connected to the limiting rod (7), and the other end of the first spring (9) is connected to the inner wall of the cavity.
6. The inverter welding machine multi-voltage compatible power input interface device according to claim 2, characterized in that, A reset spring (17) is also sleeved on the outside of the slide rod (15). One end of the reset spring (17) is connected to the limiting plate (16), and the other end of the reset spring (17) is connected to the inner wall of the mounting cavity.
7. The inverter welding machine multi-voltage compatible power input interface device according to claim 1, characterized in that, The inverter welding machine (1) is equipped with a handle (2) on the top and a heat dissipation mesh plate (3) on the side wall of the inverter welding machine (1).