Voltage measuring pen

Abstract

The utility model relates to the technical field of measuring pens, and discloses a voltage measuring pen, which comprises a central controller. The detection head is configured to be in electric contact with an object to be detected; the measuring circuit module is electrically connected with the detection head and the central controller respectively; the voltage measuring key is electrically connected with the central controller, and the central controller is configured to measure voltage by controlling the measuring circuit module when the voltage measuring key is contacted; the storage module is electrically connected with the central controller, and the storage module is configured to store the voltage value measured by the measuring circuit module; the display is electrically connected with the central controller, and the display is configured to display the voltage value retrieved from the storage module by the central controller; and the switching button is electrically connected with the central controller, and when the switching button is pressed, the display displays the voltage value switched and called by the central controller from the storage module. The voltage measuring pen not only can measure and display actual voltage, but also can store a plurality of measured voltage values for a user to look up.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring pens, in particular to a voltage measuring pen. Background Art

[0002] A voltage measuring pen is also commonly called a voltage test pen or a voltage detection pen. It is a tool used to detect whether there is voltage in a circuit. It usually consists of a pen-shaped shell and a built-in voltage detection circuit.

[0003] The Chinese utility model patent with the authorization announcement number CN 218099348 U discloses a voltage tester that allows the user to know the real value of the measured voltage instead of the simulated fixed voltage value. However, although the voltage measuring pen in the prior art can measure the actual real voltage, it cannot keep it on the display screen all the time, or store multiple measured voltage values, and thus the user cannot check and compare the most recent measurement results.

[0004] Therefore, there is an urgent need to provide a voltage measuring pen to solve at least one of the above problems. Utility Model Content

[0005] Based on the above, the purpose of the utility model is to provide a voltage measuring pen, which can not only measure and display the actual real voltage, but also store the measured multiple voltage values ​​for users to check.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The present application provides a voltage measuring pen, comprising:

[0008] Central control unit;

[0009] A detection head is configured to make electrical contact with the object to be detected;

[0010] A measuring circuit module, electrically connected to the detection head and the central controller respectively;

[0011] A voltage measurement button, electrically connected to the central controller, wherein the central controller is configured to measure voltage by controlling the measurement circuit module when the voltage measurement button is touched;

[0012] A storage module, electrically connected to the central controller, and configured to store the voltage value measured by the measurement circuit module;

[0013] a display, electrically connected to the central controller, the display being configured to display the voltage value retrieved by the central controller from the storage module;

[0014] A switch button is electrically connected to the central controller. When the switch button is pressed, the display displays the voltage value switched by the central controller from the storage module.

[0015] In some embodiments, the storage capacity of the storage module is configured to store 1-10 voltage values.

[0016] In some embodiments, the storage capacity of the storage module is configured to store 1 voltage value.

[0017] In some embodiments, the voltage measuring pen further comprises:

[0018] An illuminating lamp is electrically connected to the central controller, the illuminating direction of the illuminating lamp is toward the detection head, and the illuminating lamp is configured to provide lighting.

[0019] In some embodiments, the voltage measuring pen further comprises:

[0020] A power button is electrically connected to the central controller, and the power button is configured to control the on and off of the central controller, the display, the measuring circuit, and the storage module.

[0021] In some embodiments, the voltage measuring pen further comprises:

[0022] A secondary battery is electrically connected to the power button to supply power to the central controller, the display, the measuring circuit, and the storage module.

[0023] In some embodiments, the voltage measuring pen further includes an insulating shell, and the central controller, the display, the measuring circuit, the storage module, the lighting lamp, the power button and the secondary battery are arranged in the insulating shell.

[0024] In some embodiments, the detection head is a rod-shaped blade head, the insulating shell is provided with a detection head clamping hole, and one end of the detection head can be detachably inserted into the detection head clamping hole and electrically connected to the measurement circuit module.

[0025] In some embodiments, one end of the detection head is a straight-shaped end, and the other end is a cross-shaped end.

[0026] In some embodiments, the central controller includes a single-chip microcomputer; the voltage measurement button and the switch button are coaxially integrated structures along the pressing direction; the voltage measuring pen also includes a continuity test button, which is electrically connected to the central controller, and when the continuity test button is pressed, it is configured to measure the continuity of the circuit of the object to be tested.

[0027] The beneficial effects of the utility model are:

[0028] The voltage measuring pen of the utility model includes a central controller, a detection head, a measuring circuit module, a voltage measuring button, a storage module, a display and a switching button; the detection head is in electrical contact with the object to be measured; the measuring circuit module is electrically connected to the detection head and the central controller respectively; the voltage measuring button is electrically connected to the central controller, and when the voltage measuring button is pressed, the central controller measures the voltage by controlling the measuring circuit module; the storage module is electrically connected to the central controller, and the storage module stores the voltage value measured by the measuring circuit module; the display is electrically connected to the central controller, and the display displays the voltage value retrieved from the storage module by the central controller; the switching button is electrically connected to the central controller, and when the switching button is pressed, the display displays the voltage value switched from the storage module by the central controller. The voltage measuring pen can not only measure and display the actual real voltage, but also store multiple measured voltage values ​​for users to check. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0030] Figure 1 A three-dimensional schematic diagram of a voltage measuring pen provided in an embodiment of the present application;

[0031] Figure 2 A schematic diagram of a voltage measuring pen provided in an embodiment of the present application without the insulating housing;

[0032] Figure 3 A schematic diagram of the circuit relationship of a voltage measuring pen provided in an embodiment of the present application.

[0033] In the figure:

[0034] 1. Central controller; 2. Detection head; 3. Measurement circuit module; 4. Voltage measurement button; 5. Storage module; 6. Display; 7. On / off test button; 8. Light; 9. Power button; 10. Secondary battery; 11. Insulation shell; 12. Switch button. DETAILED DESCRIPTION

[0035] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the pen or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] A voltage measuring pen is also commonly called a voltage test pen or a voltage detection pen. It is a tool used to detect whether there is voltage in a circuit. It usually consists of a pen-shaped shell and a built-in voltage detection circuit.

[0040] Although the voltage measuring pen in the prior art can measure the actual voltage, it is not possible to keep it on the display screen or store multiple measured voltage values, and the user is unable to check and compare the most recent measurement results.

[0041] For the above problems, refer to Figure 1-3, the embodiment of the present application provides a voltage measuring pen, the voltage measuring pen includes a central controller 1, a detection head 2, a measuring circuit module 3, a voltage measuring button 4, a storage module 5, a display 6 and a switching button 12. The detection head 2 is configured to be in electrical contact with the object to be measured; the measuring circuit module 3 is electrically connected to the detection head 2 and the central controller 1 respectively; the voltage measuring button 4 is electrically connected to the central controller 1, and the central controller 1 is configured to measure the voltage by controlling the measuring circuit module 3 when the voltage measuring button 4 is touched; the storage module 5 is electrically connected to the central controller 1, and the storage module 5 is configured to store the voltage value measured by the measuring circuit module 3; the display 6 is electrically connected to the central controller 1, and the display 6 is configured to display the voltage value retrieved from the storage module 5 by the central controller 1; the switching button 12 is electrically connected to the central controller 1, and when the switching button 12 is pressed, the display 6 displays the voltage value switched from the storage module 5 by the central controller 1. Specifically, the measuring circuit module 3 is integrated into the circuit board shown in the figure to form a part of the circuit board.

[0042] Further, refer to Figure 1-3 The voltage measurement button 4 and the switch button are coaxially integrated along the pressing direction, with high integration and convenient operation; specifically, the switch button can be sleeved inside the voltage test button 4 with complementary conductive effects, and the voltage test can be performed by touching or gently pressing the voltage measurement button 4, and then further pressing it down can trigger the switch button to switch the voltage value to be displayed.

[0043] In addition, reference Figure 1-3 The voltage measuring pen also includes a continuity test button 7, which is electrically connected to the central controller 1. When the continuity test button 7 is pressed, it is configured to measure the continuity of the circuit of the object to be tested. The existing structure can be used and will not be described in detail.

[0044] The voltage measuring pen of the embodiment of the present application can store the voltage value measured by the measuring circuit module 3 through the storage module 5; the display 6 displays the voltage value retrieved by the central controller 1 from the storage module 5; and when the switch button 12 is pressed, the display 6 displays the voltage value switched and retrieved by the central controller 1 from the storage module 5. Therefore, the voltage measuring pen of the embodiment of the present application can not only measure and display the actual real voltage, but also store the voltage values ​​measured multiple times for the user to switch and compare. It should be noted that the storage module 5 can be a separate memory, or it can be an existing circuit structure integrated on a circuit board together with the measuring circuit module 3, and the specific structure will not be repeated.

[0045] In some embodiments, reference Figure 1-3, the storage capacity of the storage module 5 is configured to store 1-10 voltage values. In some embodiments, the storage capacity of the storage module 5 is configured to store 1 voltage value. It can first display the currently measured voltage value and store the previously measured voltage value. By pressing the switch button 12, the display 6 can be switched to display the voltage value switched and retrieved from the storage module 5 by the central controller 1.

[0046] In some embodiments, reference Figure 1-3 The voltage measuring pen further comprises an illuminating lamp 8. The illuminating lamp 8 is electrically connected to the central controller 1, the illuminating direction of the illuminating lamp 8 is toward the detection head 2, and the illuminating lamp 8 is configured to provide illumination.

[0047] In some embodiments, reference Figure 1-3 The voltage measuring pen further comprises a power button 9 . The power button 9 is electrically connected to the central controller 1 , and the power button 9 is configured to control the power on and off of the central controller 1 , the display 6 , the measuring circuit, and the storage module 5 .

[0048] refer to Figure 1-3 In some embodiments, the voltage measuring pen further includes a secondary battery 10, which is electrically connected to the power button 9 to supply power to the central controller 1, the display 6, the measuring circuit, and the storage module 5. The secondary battery 10 can be repeatedly charged and used multiple times.

[0049] refer to Figure 1-3 In some embodiments, the voltage measuring pen further includes an insulating housing 11, and the central controller 1, the display 6, the measuring circuit, the storage module 5, the lighting lamp 8, the power button 9 and the secondary battery 10 are arranged in the insulating housing 11. The insulating housing 11 can be formed by assembling a plurality of sub-housings, and the details are not repeated here.

[0050] In some embodiments, reference Figure 1-3 The detection head 2 is a rod-shaped blade head, and the insulating housing 11 is provided with a detection head 2 clamping hole. One end of the detection head 2 can be detachably inserted into the detection head 2 clamping hole and electrically connected to the measurement circuit module 3. The detection head 2 can be detached and replaced separately, and the structure is flexible.

[0051] Further, refer to Figure 1-3 In some embodiments, one end of the detection head 2 is a straight-line end, and the other end of the detection head 2 is a cross-shaped end, so that the end that needs to contact the object to be detected can be flexibly adjusted according to actual needs.

[0052] In some embodiments, reference Figure 1-3 The central controller 1 includes a single chip microcomputer. It should be noted that the internal structure of the single chip microcomputer, the measuring circuit, the storage module 5, the lighting lamp 8, the secondary battery 10, and the central controller 1 can adopt the existing technical solutions, and the specific internal structure and circuit relationship thereof will not be repeated.

[0053] The following application Figure 1-3 Based on the provided implementation method, the use process of the voltage measuring pen is briefly introduced.

[0054] After the voltage measuring pen is powered on, when performing voltage measurement, first touch the detection head 2 to the object to be tested, and then the tester presses and / or touches the voltage measurement button 4, so that the object to be tested forms a conductive loop with the earth through the voltage measuring pen and the tester; the central controller 1 controls the measurement circuit module 3 to measure the voltage, and stores the obtained voltage value in the storage module 5, and displays it on the display interface of the display 6 at the same time; at this time, release the voltage measurement button 4 to complete a measurement, and the display interface of the display 6 continues to display the measured voltage value; when multiple measurements are made, the multiple voltage values ​​obtained will be stored in the storage module 5, and the most recently measured voltage value will be displayed on the display interface of the display 6; then, by further pressing the voltage measurement button 4 to trigger the pressing of the switch button 12, the display 6 will display the voltage value switched and retrieved from the storage module 5 by the central controller 1, and then the switching display and comparative analysis of multiple voltage values ​​can be performed to make it more convenient for users to use.

[0055] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A voltage measuring pen, characterized in that: include: Central controller (1); A detection head (2) is configured to be in electrical contact with the object to be detected; A measuring circuit module (3) is electrically connected to the detection head (2) and the central controller (1) respectively; A voltage measurement button (4) is electrically connected to the central controller (1), and the central controller (1) is configured to measure voltage by controlling the measurement circuit module (3) when the voltage measurement button (4) is touched; A storage module (5) is electrically connected to the central controller (1), and the storage module (5) is configured to store the voltage value measured by the measurement circuit module (3); A display (6) is electrically connected to the central controller (1), and the display (6) is configured to display the voltage value retrieved by the central controller (1) from the storage module (5); A switch button (12) is electrically connected to the central controller (1); when the switch button (12) is pressed, the display (6) displays the voltage value switched and retrieved by the central controller (1) from the storage module (5).

2. The voltage measuring pen according to claim 1, characterized in that: The storage capacity of the storage module (5) is configured to store 1-10 voltage values.

3. The voltage measuring pen according to claim 2, characterized in that: The storage capacity of the storage module (5) is configured to store one voltage value.

4. The voltage measuring pen according to any one of claims 1 to 3, characterized in that: Also includes: An illuminating lamp (8) is electrically connected to the central controller (1), the illuminating direction of the illuminating lamp (8) is toward the detection head (2), and the illuminating lamp (8) is configured to provide lighting.

5. The voltage measuring pen according to claim 4, characterized in that: Also includes: A power button (9) is electrically connected to the central controller (1), and the power button (9) is configured to control the on and off of the central controller (1), the display (6), the measuring circuit, and the storage module (5).

6. The voltage measuring pen according to claim 5, characterized in that: Also includes: A secondary battery (10) is electrically connected to the power button (9) to supply power to the central controller (1), the display (6), the measurement circuit, and the storage module (5).

7. The voltage measuring pen according to claim 6, characterized in that: It also includes an insulating shell (11), in which the central controller (1), the display (6), the measuring circuit, the storage module (5), the lighting lamp (8), the power button (9) and the secondary battery (10) are arranged.

8. The voltage measuring pen according to claim 7, characterized in that: The detection head (2) is a rod-shaped blade head, the insulating housing (11) is provided with a detection head (2) clamping hole, and one end of the detection head (2) can be detachably inserted into the detection head (2) clamping hole and electrically connected to the measurement circuit module (3).

9. The voltage measuring pen according to claim 8, characterized in that: One end of the detection head (2) is a straight-line end, and the other end is a cross-shaped end.

10. The voltage measuring pen according to claim 1, characterized in that: The central controller (1) comprises a single-chip microcomputer; the voltage measurement button (4) and the switching button are coaxially integrated along the pressing direction; the voltage measurement pen further comprises a continuity test button (7), the continuity test button (7) is electrically connected to the central controller (1), and when the continuity test button (7) is pressed, it is configured to measure the continuity of the circuit of the object to be tested.

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