Stepless adjustment potentiometer with display function and electric welding machine

Abstract

The utility model provides a stepless adjustment potentiometer and an electric welding machine, wherein the stepless adjustment potentiometer comprises a stepless encoder, a knob, a display screen bracket, a display screen and a wire; wherein the stepless encoder comprises an inner ring structure and an outer ring structure. The inner ring structure is fixed on a circuit board, the outer ring structure is rotatably sleeved on the outer periphery of the inner ring structure, the knob is fixedly sleeved on the outer periphery of the outer ring structure, the bottom end of the display screen bracket is fixed on the inner wall of the inner ring structure, the display screen is fixed on the top surface of the display screen bracket, and rotating the knob can drive the outer ring structure to rotate relative to the inner ring structure, while the display screen will not rotate with the knob. Through the above structural design, the current and voltage regulation and display functions are integrated, and the whole structure is simple and easy to install. After applying it to the electric welding machine, the centralized processing of multi-functional display and regulation is realized, which can save energy and space, and it is easier to adjust the current and voltage during the electric welding operation.

Description

Technical Field

[0001] The utility model belongs to the field of electrical equipment and relates to an electric welding machine; at the same time, the utility model also relates to a stepless regulating potentiometer with a display function. Background Art

[0002] With the rapid development of economy, energy conservation has become an inevitable demand and social consensus. Various electrical appliances are increasingly developing in the direction of energy conservation, convenience, space saving, safety and efficiency, and multi-functionality. Electric welding machines, as an important electrical equipment in people's work and life, are no exception.

[0003] At present, the adjustment panel of the welding machine is composed of a voltage display, a current display, a function indicator light, multiple function selection keys and a single arrangement of potentiometers. It consumes a lot of energy, occupies a large space area, and requires complex and cumbersome multi-stage adjustment options when used. Utility Model Content

[0004] One of the purposes of the utility model is to provide a stepless regulating potentiometer which integrates the regulation and display of current and voltage.

[0005] The utility model is realized in this way: a stepless adjustment potentiometer with display function comprises a stepless encoder, a knob, a display screen bracket, a display screen and a wire;

[0006] The stepless encoder comprises an inner ring structure and an outer ring structure, wherein the inner ring structure is used for being fixedly mounted on a circuit board, and the outer ring structure is sleeved on the outer periphery of the inner ring structure and can rotate relative to the inner ring structure to achieve stepless regulation of current and voltage;

[0007] The knob is fixedly sleeved on the outer ring structure, and the outer ring structure can be driven to rotate relative to the inner ring structure by rotating the knob with external force;

[0008] The bottom end of the display screen bracket is fixedly mounted on the inner wall of the inner ring structure;

[0009] The display screen is fixed on the top surface of the display screen bracket;

[0010] A gap is reserved between the outer periphery of the display screen bracket and the outer periphery of the display screen and the inner wall surface of the knob, so that when the knob rotates, the display screen will not rotate along with it;

[0011] One end of the wire is electrically connected to the display screen, and the other end passes through the display screen bracket and the inner ring structure to be electrically connected to the circuit board.

[0012] In some preferred embodiments, a first buckle is provided on the inner ring wall surface of the knob, a first slot is provided on the outer ring structure of the stepless encoder, and the first buckle is buckled and connected to the first slot.

[0013] In some preferred embodiments, a first positioning protrusion is provided on the inner ring wall surface of the knob, a first positioning groove is provided on the outer ring structure of the stepless encoder, and the first positioning protrusion is embedded in the first positioning groove.

[0014] In some preferred embodiments, a texture structure for increasing surface friction is provided on the outer periphery of the knob.

[0015] In some preferred embodiments, the display screen bracket has a mounting platform, a connecting ring extends downward from the bottom surface of the mounting platform, and a second buckle is provided on the outer wall surface of the connecting ring; a second slot is provided on the inner ring structure of the stepless encoder, and the second buckle is buckled with the second slot.

[0016] In some preferred embodiments, a plurality of spaced-apart gaps are provided on the connecting ring of the display screen bracket so that the connecting ring can be elastically deformed when the connecting ring is installed into the inner ring structure of the stepless encoder.

[0017] In some preferred embodiments, a plurality of positioning parts extend downward from the bottom periphery of the display screen, a plurality of positioning notches are provided on the outer periphery of the mounting platform of the display screen bracket corresponding to the positions of the positioning parts, and the positioning parts are embedded in the positioning notches corresponding to their positions.

[0018] In some preferred embodiments, the stepless adjustment potentiometer also includes a lens, which is located on the display screen and has a shape that matches the shape of the display screen; an annular groove is provided on the top of the knob, and the edge of the lens is embedded in and fixed in the annular groove; a gap is reserved between the lens and the display screen, and when the lens rotates with the knob, the lens will not spatially interfere with the display screen and will not drive the display screen to rotate together.

[0019] In some preferred embodiments, the outer contours of the knob, the display screen, and the lens are all circular.

[0020] The second purpose of the utility model is to provide an electric welding machine which can save energy, save space and is easier to operate.

[0021] The utility model is implemented in this way: an electric welding machine comprises a control mainboard and the stepless adjustment potentiometer, wherein the stepless adjustment potentiometer is fixedly mounted on the control mainboard and electrically connected to the electronic circuit on the control mainboard.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The stepless adjustment potentiometer provided by the utility model comprises a stepless encoder, a knob, a display screen bracket, a display screen and a wire; wherein the stepless encoder comprises an inner ring structure and an outer ring structure. The inner ring structure is fixedly mounted on a circuit board, and the outer ring structure is sleeved on the outer periphery of the inner ring structure and can rotate relative to the inner ring structure to realize stepless adjustment of current and voltage.

[0024] The knob is fixedly mounted on the outer ring structure. The outer ring structure can be driven to rotate relative to the inner ring structure by turning the knob with external force. The bottom end of the display screen bracket is fixedly mounted on the inner wall of the inner ring structure, and the display screen is fixed on the top surface of the display screen bracket. Since a gap is reserved between the outer periphery of the display screen bracket and the outer periphery of the display screen and the inner ring wall of the knob, the display screen will not rotate with the knob when the knob is turned.

[0025] Through the above structural design, the current and voltage regulation and display functions are integrated on the stepless adjustment potentiometer. The whole structure is simple and easy to install. After applying it to the welding machine, the user rotates the knob to drive the stepless encoder to rotate. The stepless encoder outputs the signal to the control mainboard for processing, and then transmits it to the display screen to display various adjustment effects. It can be seen that by centralizing the multi-functional display and adjustment, energy and space can be saved, and it is easier to adjust the current and voltage during welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the stepless adjustment potentiometer provided by an embodiment of the utility model;

[0027] Figure 2 yes Figure 1 The schematic diagram of the exploded structure of the stepless adjustment potentiometer shown;

[0028] Figure 3 yes Figure 1 A longitudinal sectional view of the stepless adjustable potentiometer shown;

[0029] Figure 4 yes Figure 1 Schematic diagram of the exploded structure of the stepless encoder and display screen bracket in the stepless adjustment potentiometer shown;

[0030] Figure 5 yes Figure 1 The three-dimensional structure schematic diagram of the knob in the stepless adjustment potentiometer is shown.

[0031] Markings in the figure:

[0032] 1. Stepless encoder; 11. Inner ring structure; 111. Second slot; 12. Outer ring structure; 121. First slot; 122. First positioning slot; 2. Knob; 21. First buckle; 22. First positioning protrusion; 23. Annular groove; 3. Display bracket; 31. Mounting platform; 311. Positioning notch; 32. Connecting ring; 321. Second buckle; 322. Clearance notch; 4. Display; 41. Positioning part; 5. Wire; 6. Lens. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] The adjustment panel of the electric welding machine in the prior art is composed of a voltage display, a current display, a function indicator light, a plurality of function selection keys and a single arrangement of a potentiometer, which consumes a lot of energy, occupies a large space area, and requires complex and cumbersome multi-stage adjustment options when used.

[0036] In order to solve the above technical problems, this embodiment provides a stepless adjustment potentiometer with a display function, referring to Figures 1 to 3 The stepless adjustment potentiometer includes a stepless encoder 1, a knob 2, a display screen bracket 3, a display screen 4, a wire 5 and a lens 6.

[0037] Reference Figure 4The stepless encoder 1 includes an inner ring structure 11 and an outer ring structure 12. The inner ring structure 11 is used to be fixedly mounted on the circuit board. During the use of the product, the inner ring structure 11 and the circuit board maintain a relatively static relationship. The outer ring structure 12 is sleeved on the outer periphery of the inner ring structure 11 and can rotate relative to the inner ring structure 11 to achieve stepless regulation of current and voltage.

[0038] The knob 2 is fixedly mounted on the outer ring structure 12, and the outer ring structure 12 can be driven to rotate relative to the inner ring structure 11 by rotating the knob 2 with external force. Figure 5 A first buckle 21 is provided on the inner ring wall surface of the knob 2 , a first slot 121 is provided on the outer ring structure 12 of the stepless encoder 1 , and the first buckle 21 is buckled and connected with the first slot 21 .

[0039] Furthermore, a first positioning protrusion 22 is provided on the inner ring wall of the knob 2, and a first positioning groove 122 is provided on the outer ring structure 12 of the stepless encoder 1, and the first positioning protrusion 22 can be embedded in the first positioning groove 122. When assembling the knob 2 to the stepless encoder 1, after aligning the first positioning protrusion 22 with the first positioning groove 122, the knob 2 can be installed by pressing down, which is simple and convenient.

[0040] In order to facilitate the user to rotate the knob 2, a texture structure for increasing surface friction is provided on the outer periphery of the knob 2.

[0041] The bottom end of the display screen bracket 3 is fixedly mounted on the inner wall of the inner ring structure 11 , and the display screen 4 is fixed on the top surface of the display screen bracket 3 .

[0042] Specifically, the display screen bracket 3 has a mounting platform 31, a connecting ring 32 extends downward from the bottom surface of the mounting platform 31, and a second buckle 321 is provided on the outer wall surface of the connecting ring 32; a second slot 111 is provided on the inner ring structure 11 of the stepless encoder 1, and the second buckle 321 is connected to the second slot buckle 111. The connecting ring 32 of the display screen bracket 3 is also provided with a plurality of spaced apart notches 322, so that when the connecting ring 32 is installed in the inner ring structure 11 of the stepless encoder 1, the connecting ring 32 can be elastically deformed.

[0043] In order to facilitate the positioning of the display screen 4 during installation, a plurality of positioning portions 41 are extended downward from the bottom periphery of the display screen 4, and a plurality of positioning notches 311 are provided on the outer periphery of the mounting platform 31 of the display screen bracket 3 corresponding to the positions of the positioning portions 41, and the positioning portions 41 are embedded in the positioning notches 311 corresponding to their positions.

[0044] There is a gap reserved between the outer periphery of the display screen bracket 3 and the outer periphery of the display screen 4 and the inner wall surface of the knob 2; therefore, when the knob 2 is turned, the display screen 4 will not rotate along with the knob 2.

[0045] One end of the wire 5 is electrically connected to the display screen 4 , and the other end passes through the display screen bracket 3 and the inner ring structure 11 to be electrically connected to the circuit board.

[0046] The lens 6 is located on the display screen 4 , and its shape matches the shape of the display screen 4 . In this embodiment, the outer contours of the knob 2 , the display screen 4 and the lens 6 are all circular.

[0047] An annular groove 23 is provided on the top of the knob 2, and the edge of the lens 6 is embedded in and fixed in the annular groove 23; a gap is reserved between the lens 6 and the display screen 4. When the lens 6 rotates with the knob 2, the lens 6 will not interfere with the display screen 4 in space and will not drive the display screen 4 to rotate together.

[0048] Through the above structural design, this embodiment realizes the integration of current and voltage regulation and display functions on the stepless adjustment potentiometer, and the entire structure is simple and easy to install.

[0049] Based on the same inventive concept, this embodiment also provides an electric welding machine, including a control mainboard and the above-mentioned stepless adjustment potentiometer, the stepless adjustment potentiometer is fixedly mounted on the control mainboard and electrically connected to the electronic circuit on the control mainboard.

[0050] After the stepless adjustment potentiometer of this embodiment is applied to the electric welding machine, the user rotates the knob 2 to drive the stepless encoder 1 to rotate, and the stepless encoder 1 outputs a signal to the control main board for processing, and then transmits it to the display screen 4, so that various adjustment effects are displayed on the display screen 4. It can be seen that this embodiment can save energy and space by centrally processing the multi-function display and potential adjustment, and it is easier to adjust the current and voltage during the electric welding operation.

[0051] It should be noted that this embodiment only lists an implementation method of applying the stepless adjustment potentiometer to an electric welding machine, but the utility model does not limit the specific application scenarios or occasions of the stepless adjustment potentiometer. The stepless adjustment potentiometer of the utility model can be applied to various machines and products that need to adjust the display, and the application field is very broad.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stepless adjustment potentiometer with display function, characterized in that: Including stepless encoder, knob, display bracket, display and wire; The stepless encoder comprises an inner ring structure and an outer ring structure, wherein the inner ring structure is used for being fixedly mounted on a circuit board, and the outer ring structure is sleeved on the outer periphery of the inner ring structure and can rotate relative to the inner ring structure to achieve stepless regulation of current and voltage; The knob is fixedly sleeved on the outer ring structure, and the outer ring structure can be driven to rotate relative to the inner ring structure by rotating the knob with external force; The bottom end of the display screen bracket is fixedly mounted on the inner wall of the inner ring structure; The display screen is fixed on the top surface of the display screen bracket; A gap is reserved between the outer periphery of the display screen bracket and the outer periphery of the display screen and the inner wall surface of the knob, so that when the knob rotates, the display screen will not rotate along with it; One end of the wire is electrically connected to the display screen, and the other end passes through the display screen bracket and the inner ring structure to be electrically connected to the circuit board.

2. The stepless adjustment potentiometer according to claim 1, characterized in that: A first buckle is provided on the inner ring wall surface of the knob, a first slot is provided on the outer ring structure of the stepless encoder, and the first buckle is buckled and connected with the first slot.

3. The stepless adjustment potentiometer according to claim 1, characterized in that: A first positioning protrusion is provided on the inner ring wall surface of the knob, a first positioning groove is provided on the outer ring structure of the stepless encoder, and the first positioning protrusion is embedded in the first positioning groove.

4. The stepless adjustment potentiometer according to claim 1, characterized in that: The outer periphery of the knob is provided with a texture structure for improving surface friction.

5. The stepless adjustment potentiometer according to claim 1, characterized in that: The display screen bracket has a mounting platform, a connecting ring extends downward from the bottom surface of the mounting platform, and a second buckle is provided on the outer wall surface of the connecting ring; a second slot is provided on the inner ring structure of the stepless encoder, and the second buckle is buckled and connected to the second slot.

6. The stepless adjustment potentiometer according to claim 5, characterized in that: The connecting ring of the display screen bracket is also provided with a plurality of spaced apart notches so that when the connecting ring is installed into the inner ring structure of the stepless encoder, the connecting ring can be elastically deformed.

7. The stepless adjustment potentiometer according to claim 5, characterized in that: A plurality of positioning parts are extended downward from the bottom periphery of the display screen, and a plurality of positioning notches are arranged on the outer periphery of the mounting platform of the display screen bracket corresponding to the positions of the positioning parts, and the positioning parts are embedded in the positioning notches corresponding to their positions.

8. The stepless adjustment potentiometer according to claim 1, characterized in that: It also includes a lens, which is located on the display screen and has a shape that matches the shape of the display screen; an annular groove is provided on the top of the knob, and the edge of the lens is embedded in and fixed in the annular groove; a gap is reserved between the lens and the display screen, and when the lens rotates with the knob, the lens will not cause spatial interference with the display screen and will not drive the display screen to rotate together.

9. The stepless adjustment potentiometer according to claim 8, characterized in that: The outer contours of the knob, the display screen and the lens are all circular.

10. An electric welding machine, comprising a control mainboard, characterized in that: It also includes a stepless adjustment potentiometer as described in any one of claims 1 to 9, wherein the stepless adjustment potentiometer is fixedly mounted on the control mainboard and is electrically connected to the electronic circuit on the control mainboard.

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