Adjustable potential tester

Abstract

An adjustable potential tester relates to the field of potential testing, and is used for solving the problem that when a complex circuit on an electrical box breaks down, a universal meter is time-consuming and labor-consuming to detect. The adjustable potential tester comprises a housing, a display screen, a power supply, a circuit board, a detection line, a jointing clamp and a voltmeter. A display area and an operation area are formed on the surface of one side of the shell; the display screen is arranged on the display area of the shell; the power supply is arranged in the shell and is electrically connected with the display screen; the circuit board is electrically connected with the power supply, and a circuit is printed on the circuit board; one end of each detection line is electrically connected with the circuit board, and the other end of each detection line extends out of the shell; the plurality of wiring clamps are arranged, the plurality of wiring clamps are in one-to-one correspondence with the plurality of detection lines, the wiring clamps are arranged at one ends, located outside the shell, of the corresponding detection lines, the detection ends of the plurality of voltmeters are electrically connected with contacts, located on the circuit board, of the detection lines, each voltmeter is arranged between two detection lines, and the voltmeters are electrically connected with the display screen.

Description

Technical Field

[0001] The present application relates to the field of potential testing, and in particular to an adjustable potential tester. Background Art

[0002] In many fields, including electronics and electrical engineering, accurate potential measurement is crucial for equipment performance testing, fault diagnosis, and scientific research. When electrical equipment malfunctions, the conventional method is to use a multimeter or voltmeter to test the circuit in sections to locate the source of the fault and subsequently repair it.

[0003] However, for the circuit arrangement in the electrical box, due to the complexity of the internal circuit and the large connection between the control circuit and other circuits, the fault analysis of some special circuits requires not only observing the on-off status of this part of the circuit, but also checking the parameter ratio and comprehensive relationship of this part of the circuit and the related circuits. At this time, it is too troublesome to detect through a multimeter or voltmeter. Utility Model Content

[0004] The present application provides an adjustable potential tester, which is used to solve the problem of time-consuming and labor-intensive detection using a multimeter when a complex circuit fault on an electrical box occurs.

[0005] The present application provides an adjustable potential tester, comprising a housing, a display screen, a power supply, a circuit board, a detection line, a wiring clamp and a voltmeter; a display area and an operation area are formed on one side surface of the housing; the display screen is arranged on the display area of the housing; the power supply is arranged in the housing, and the power supply is electrically connected to the display screen; the circuit board is electrically connected to the power supply, and a circuit is printed on the circuit board; at least three detection lines are provided, one end of each detection line is electrically connected to the circuit board, and the other end of the detection line extends outside the housing, and at least three detection lines are located on the same series circuit of the circuit board; a plurality of wiring clamps are provided, and the plurality of wiring clamps correspond one-to-one to the plurality of detection lines, and the wiring clamps are provided at one end of the corresponding detection line located outside the housing, the wiring clamps are made of metal and the wiring clamps and the circuit board can be energized; a plurality of voltmeters are provided, and the detection ends of the plurality of voltmeters are electrically connected to the contacts of the detection line located on the circuit board, each voltmeter is provided between two detection lines, and the voltmeter is electrically connected to the display screen.

[0006] The power supply and circuit board of the adjustable potential tester in the present application are connected to multiple detection lines, and the multiple detection lines are located in the same circuit and are connected in series. When there are similar control circuits or servo circuits in the electrical box, multiple circuits to be detected can be connected to the same loop after the electrical box is powered off. At this time, the voltage transformer can transmit the potential values between different detection circuits to the display screen, and make the display screen directly display the potential values at different points under the voltage, so as to facilitate the positioning of the faulty circuit, avoid the trouble of detecting the circuits one by one, and also avoid errors during different operations, thereby making the faulty circuit detection of the electrical box more convenient.

[0007] The test line is also equipped with a wiring clamp, which can facilitate the stable connection between different test lines and the circuit to be tested, reduce the difficulty of operation and improve the detection efficiency.

[0008] In some embodiments of the present application, at least four test lines are provided, and the at least four test lines are located within the same circuit of a circuit board, with at least two of the at least four test lines being connected in parallel. The parallel connections among the test lines allow for simultaneous testing of different circuits, which increases operator flexibility when testing complex circuits within electrical boxes and helps further improve testing efficiency.

[0009] In some embodiments of the present application, a plurality of wire slots are provided on the operating area of the housing, and the plurality of wire slots correspond one to one with the plurality of detection wires, and the detection wires are accommodated in the wire slots. The wire slots can facilitate the accommodation of the detection wires and prevent the detection wires from being entangled.

[0010] In some embodiments of the present application, each wire trough is provided with a clamping post for clamping a terminal clamp. The clamping post can be used to clamp a test line, thereby stabilizing the position of the line of the adjustable potential tester before use and facilitating the identification of the corresponding test line terminal.

[0011] In some embodiments of the present application, a control button is provided outside each wire trough, electrically connected to the circuit board. This button is used to control the connection between the detection line in the adjacent wire trough and the circuit board. The control button can adjust the connection between the detection line and the circuit board. During testing, some detection lines can be disconnected to directly test other areas. After testing is complete, all lines are collected together, facilitating comparative experiments and helping to improve detection efficiency.

[0012] In some embodiments of the present application, an adjustment knob is further provided on the housing. The adjustment knob is located within the operating area and spaced apart from the detection line. The adjustment knob is used to adjust the voltage on the detection line. The adjustment knob can adjust the voltage within the detection circuit to meet the detection requirements of different components in different electrical boxes.

[0013] In some embodiments of the present application, a clamping plate is provided on the wire trough, which is rotatably connected to one side wall of the wire trough and clamped to the other side wall of the wire trough. The clamping plate is used to hold the detection line in the wire trough. The clamping plate can make the detection line more stable when it is in the wire trough.

[0014] In some embodiments of the present application, the adjustable potential tester further includes an analog-to-digital converter disposed between the voltage transformer and the display screen, and configured to convert the voltage meter's test results. The analog-to-digital converter can directly convert the voltage meter's test results into data, allowing for a more intuitive display of the test results on the display screen.

[0015] In some embodiments of the present application, the housing is provided with a battery slot and an end cap. The battery slot and the display area are located on different side walls of the housing. The battery slot is used to install a power supply, and the end cap is located on the battery slot. The battery slot and end cap facilitate battery replacement and help ensure long-term stable testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0017] Figure 1 A schematic diagram of an adjustable potential tester provided in an embodiment of the present application.

[0018] Figure markings: 1-housing; 11-display area; 12-operation area; 13-wire slot; 14-clamping column; 15-card board; 2-display screen; 3-power supply; 4-circuit board; 5-detection line; 6-wiring clamp; 7-voltmeter; 71-analog-to-digital converter; 8-control button; 9-adjustment knob. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connect" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "connected" used in this application have the meaning of conducting electricity. The specific meanings need to be understood in the context.

[0023] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0024] In many fields, including electronics and electrical engineering, accurate potential measurement is crucial for equipment performance testing, fault diagnosis, and scientific research. When electrical equipment malfunctions, the conventional method is to use a multimeter or voltmeter to test the circuit in sections to locate the source of the fault and subsequently repair it.

[0025] However, for the circuit arrangement in the electrical box, due to the complexity of the internal circuit and the large connection between the control circuit and other circuits, the fault analysis of some special circuits requires not only observing the on-off status of this part of the circuit, but also checking the parameter ratio and comprehensive relationship of this part of the circuit and the related circuits. At this time, it is too troublesome to detect through a multimeter or voltmeter.

[0026] To do this, please refer to Figure 1 The present application provides an adjustable potential tester, including a housing 1, a display screen 2, a power supply 3, a circuit board 4, a detection line 5, a wiring clamp 6 and a voltmeter 7.

[0027] Please refer to Figure 1 A display area 11 and an operation area 12 are formed on one side surface of the housing 1. The housing 1 can be a plastic housing 1 or a metal housing 1. The display area 11 and the operation area 12 on the side surface of the housing 1 can be coplanar or bent at a certain angle, such as 20° to 45°.

[0028] Please refer to Figure 1 The display screen 2 is arranged on the display area 11 of the housing 1. The display screen 2 can be an LED screen or an OLED screen, and the display screen 2 and the display area 11 can be connected by snapping, bonding or bolting.

[0029] Please refer to Figure 1 The power supply 3 is arranged in the housing 1 and is electrically connected to the display screen 2. The power supply 3 may refer to only a battery, or may include a battery and a protection circuit, a power supply 3 quick-release box, and the like.

[0030] Please refer to Figure 1 The circuit board 4 is electrically connected to the power supply 3 and has circuits printed on it. The circuit board 4 can be a conventional printed circuit board 4 and can be plastic-sealed in the housing 1 to ensure the safety of the circuit board 4.

[0031] Please refer to Figure 1 At least three detection lines 5 are provided, one end of each detection line 5 is electrically connected to the circuit board 4, and the other end of the detection line 5 extends outside the housing 1. At least three detection lines 5 are located on the same series loop of the circuit board 4. The detection lines 5 can be conventional electrical wires, and the number thereof can range from 3 to 15. The detection lines 5 can be partially fixedly arranged in the housing 1 to ensure a stable connection between the detection lines 5 and the housing 1.

[0032] Please refer to Figure 1 A plurality of terminal clips 6 are provided, each corresponding to a plurality of detection wires 5. The terminal clips 6 are provided at one end of the corresponding detection wire 5 outside the housing 1. The terminal clips 6 are made of metal and can be electrically connected to the circuit board 4. The terminal clips 6 can be conventional metal clips, directly connected to the energized portion of the detection wire 5, and an insulating sleeve can be provided on the outside of the terminal clips 6 to facilitate user operation.

[0033] Please refer to Figure 1 A plurality of voltmeters 7 are provided, and the detection ends of the plurality of voltmeters 7 are electrically connected to the contacts of the detection lines 5 on the circuit board 4. Each voltmeter 7 is provided between two detection lines 5, and the voltmeter 7 is electrically connected to the display screen 2. The plurality of voltmeters 7 can be provided, and the voltmeter 7 can detect the voltage value between any two adjacent detection lines 5, thereby determining the point position of the area to be detected. The voltmeter 7 can be connected to the wire via a printed circuit on the circuit board 4, or directly connected to the wire.

[0034] Please refer to Figure 1In the adjustable potential tester of the present application, a plurality of detection lines 5 are connected to the power supply 3 and the circuit board 4. The plurality of detection lines 5 are located in the same circuit and are connected in series. When there are similar control circuits or servo circuits in the electrical box, the plurality of detection lines 5 can be connected to the same loop after the electrical box is powered off. At this time, the voltage can transmit the potential values between different detection lines 5 to the display screen 2, and make the display screen 2 directly display the potential values at different points under the voltage, so as to facilitate the positioning of the faulty circuit, avoid the trouble of detecting the circuits one by one, and also avoid errors during different operations, thereby making the faulty circuit detection of the electrical box more convenient.

[0035] Please refer to Figure 1 The detection line 5 is also provided with a wiring clip 6, which can facilitate the stable connection between different detection lines 5 and the circuit to be detected, reduce the operation difficulty and improve the detection efficiency.

[0036] In some examples, a handle may be provided on the housing 1 to facilitate the user's grip.

[0037] Please refer to Figure 1 In some examples, at least four detection lines 5 are provided. The at least four detection lines 5 are located within the same loop of the circuit board 4, and at least two of the at least four detection lines 5 are connected in parallel. The parallel circuits of the detection lines 5 can be used to simultaneously detect different circuits. This allows for greater operator flexibility when testing complex circuits within an electrical box, thereby further improving detection efficiency.

[0038] Please refer to Figure 1 In some examples, when multiple detection lines 5 need to be connected in parallel on the circuit board 4, the detection lines 5 are set to at least four, and the parallel detection lines are relatively few, usually set to a second-order circuit or a third-order circuit. At this time, the detection lines 5 can be set to two detection lines 5 in parallel or three detection lines 5 in parallel as needed to meet the usage requirements.

[0039] Please refer to Figure 1 In some examples, a wire groove 13 is provided on the operating area 12 of the housing 1. The wire groove 13 is provided in a plurality, and the plurality of wire grooves 13 correspond one to one with the plurality of detection wires 5. The detection wires 5 are accommodated in the wire grooves 13. The wire grooves 13 can facilitate the accommodation of the detection wires 5 and prevent the detection wires 5 from being entangled.

[0040] In some examples, the wire slot 13 may be a square slot, and its shape may be a long strip, or may be a square or a circle.

[0041] Please refer to Figure 1In some examples, each wire duct 13 is provided with a clamping post 14 for clamping the terminal clamp 6. The clamping post 14 can be used to clamp the detection line 5, so that the position of the line of the adjustable potential tester is stabilized before use, making it easier to find the corresponding terminal of the detection line 5.

[0042] In some examples, the clamping column 14 can be fixedly connected to the housing 1, for example, by a threaded connection, or it can be integrally formed or connected in other ways; an anti-slip bump can be provided at the end of the clamping column 14 to make the connection between the terminal clamp 6 and the clamping column 14 more stable.

[0043] Please refer to Figure 1 In some examples, a control button 8 is provided outside each wire trough 13. The control button 8 is electrically connected to the circuit board 4 and is used to control the continuity between the detection line 5 in the adjacent wire trough 13 and the circuit board 4. The control button 8 can adjust the continuity of the detection line 5. During testing, some detection lines 5 can be disconnected to directly test other areas. After the test is completed, the lines are collected together, facilitating comparative experiments and helping to improve detection efficiency.

[0044] In some examples, the control button 8 can be connected to a switch, or the control button 8 can be connected to other conductive or resistive structures for controlling the on / off state of the detection line 5 , thereby achieving on / off control of the circuit.

[0045] In some examples, the control button 8 may be a push button, a knob, or a sliding button.

[0046] Please refer to Figure 1 In some examples, the housing 1 is further provided with an adjustment knob 9, which is disposed within the operating area 12 and spaced apart from the detection line 5. The adjustment knob 9 is used to adjust the voltage on the detection line 5. The adjustment knob 9 can adjust the voltage within the detection line 5 to meet the detection requirements of different components in different electrical boxes.

[0047] In some examples, the adjustment knob 9 may be an ordinary knob, a variable resistor may be connected to the adjustment knob 9 , and the variable resistor may be mounted on the circuit board 4 , and adjustment is achieved by rotating the adjustment knob 9 .

[0048] Please refer to Figure 1 In some examples, a clamping plate 15 is provided on the wire trough 13. The clamping plate 15 is rotatably connected to one side wall of the wire trough 13 and is engaged with the other side wall of the wire trough 13. The clamping plate 15 is used to hold the detection line 5 in the wire trough 13. The clamping plate 15 can make the detection line 5 more stable when it is in the wire trough 13.

[0049] In some examples, the card plate 15 can be a plastic plate, which can be 10% to 50% of the cross-sectional area of the wire trough 13. The card plate 15 can be provided with a snap-on protrusion or a buckle, and a corresponding locking structure can be provided on the wire trough 13 to facilitate the stable connection between the card plate 15 and the side wall of the wire trough 13.

[0050] Please refer to Figure 1 In some examples, the adjustable potential tester further includes an analog-to-digital converter 71, which is disposed between the voltage transformer and the display screen 2. The analog-to-digital converter 71 is configured to convert the detection results of the voltmeter 7. The analog-to-digital converter 71 can directly convert the detection results of the voltmeter 7 into data and display the detection results more intuitively on the display screen 2.

[0051] In some examples, the analog-to-digital converter 71 here may not only be a converter, for example, a single-chip microcomputer or PLC may be used and a conversion module may be combined to achieve precise conversion, and a filtering and rectifying structure may be added to make the result display more stable, which is helpful for user judgment.

[0052] In some examples, the analog-to-digital converter 71 can be set to one so that all voltmeters 7 are converted through the same converter, or it can be set to multiple so that different voltmeters 7 are converted through different converters, which helps to stabilize the data.

[0053] In some examples, the housing 1 is provided with a battery slot and an end cap. The battery slot and the display area 11 are located on different side walls of the housing 1. The battery slot is used to install the power supply 3, and the end cap is located on the battery slot. The battery slot and end cap facilitate battery replacement and help ensure long-term stable testing.

[0054] In some examples, the end cover can be made of the same material as the housing 1 to facilitate installation of the two, or can be made of different materials; the end cover and the housing 1 can be connected by snap-fitting or bolting.

[0055] The battery can be a rechargeable battery, such as a lithium battery or a lead-acid battery, thereby reducing the cost of use and improving the safety of use.

[0056] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0057] The above is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An adjustable potential tester, characterized in that: include: A housing, a display area and an operation area being formed on one side surface thereof; a display screen, disposed on the display area of the housing; a power supply, disposed in the housing, the power supply being electrically connected to the display screen; a circuit board, electrically connected to the power supply, and having circuits printed thereon; At least three detection lines are provided, one end of each detection line is electrically connected to the circuit board, the other end of each detection line extends outside the housing, and at least three detection lines are located on the same series loop of the circuit board; A plurality of wiring clips are provided, each of the wiring clips corresponds to a plurality of detection lines, the wiring clips are provided at one end of the corresponding detection line located outside the housing, the wiring clips are made of metal and can be electrically connected to the circuit board; The voltmeter is provided in plurality, the detection ends of the plurality of voltmeters are electrically connected to the contacts of the detection lines on the circuit board, each voltmeter is provided between two detection lines, and the voltmeter is electrically connected to the display screen.

2. The adjustable potential tester according to claim 1, characterized in that: The number of the detection lines is at least four, the at least four detection lines are located in a same loop of the circuit board, and at least two of the at least four detection lines are connected in parallel.

3. The adjustable potential tester according to claim 1, characterized in that: A wire groove is provided on the operating area of the housing. There are a plurality of wire grooves, each of which corresponds to a plurality of detection wires. The detection wires are accommodated in the wire grooves.

4. The adjustable potential tester according to claim 3, characterized in that: A clamping column is provided outside each of the wire troughs, and the clamping column is used to clamp the wiring clamp.

5. The adjustable potential tester according to claim 4, characterized in that: A control button is provided outside each wire trough, and the control button is electrically connected to the circuit board. The control button is used to control the connection and disconnection between the detection line in the adjacent wire trough and the circuit board.

6. The adjustable potential tester according to claim 5, characterized in that: The housing is further provided with an adjusting knob, which is arranged in the operating area and spaced apart from the detection line. The adjusting knob is used to adjust the voltage on the detection line.

7. The adjustable potential tester according to claim 3, characterized in that: A clamping plate is provided on the wire trough, the clamping plate is rotatably connected to one side wall of the wire trough, and the clamping plate is clamped to the other side wall of the wire trough, and the clamping plate is used to keep the detection line in the wire trough.

8. The adjustable potential tester according to any one of claims 1 to 7, characterized in that: The adjustable potential tester further includes an analog-to-digital converter, which is arranged between the voltage transformer and the display screen and is used to convert the detection result of the voltmeter.

9. The adjustable potential tester according to claim 1, characterized in that: The housing is provided with a battery slot and an end cover. The battery slot and the display area are located on different side walls of the housing. The battery slot is used to install the power supply, and the end cover is covered on the battery slot.

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