Socket tester

Abstract

The utility model relates to a socket tester, and belongs to the technical field of circuits. According to the utility model, the sensor is arranged on the control circuit board, the copper core wire is arranged in the sensor, an electric signal is formed after the copper core wire induces an electric field, the signal is measured through the AD port of the single-chip microcomputer on the control circuit board, and the obtained data is displayed through the display module. A non-contact AC voltage detection function (NCV) is realized; according to the utility model, the leakage detection protection switch is arranged to be lower than the upper cover, so that the function of preventing mistaken touch is realized.

Description

Technical Field

[0001] The utility model relates to a socket tester, belonging to the technical field of circuits. Background Art

[0002] A socket tester is a portable test instrument used to test whether the wiring of a three-wire socket is correct.

[0003] Traditional socket testers have the following disadvantages in use:

[0004] 1. The residual current protection switch (RCD) is higher than the outer shell surface of the socket tester. During use, it is easy to accidentally touch the switch, resulting in misoperation.

[0005] 2. The upper cover is provided with several indicator light holes. The wiring condition of the socket is determined by the combination of the indicator lights. It is necessary to manually determine the wiring condition of the socket through several pre-designed judgment results. It is inconvenient to use and has a high threshold for use. Utility Model Content

[0006] The purpose of the utility model is to provide a socket tester to solve the problems of mistakenly touching the switch and inconvenience in use proposed in the above background technology.

[0007] The technical solution of the utility model is as follows:

[0008] A socket tester comprises a shell, wherein the shell comprises an upper cover with a button hole and a lower cover fixed to the bottom of the upper cover, a plug module is arranged on the lower surface of the lower cover, a control circuit module for processing data is arranged inside the shell, a switch cap fixed to the upper surface of the control circuit module, a leakage protection switch for detecting and a display module are also arranged inside the shell, and the switch cap and the leakage protection switch for detecting are arranged in one-to-one correspondence with each button hole; an annular protrusion is fixed to the outer periphery of the top of the button hole corresponding to the leakage protection switch for detecting, the top of the switch cap passes through the corresponding button hole and is arranged higher than the upper surface of the upper cover, and the top of the leakage protection switch for detecting is arranged lower than the upper surface of the annular protrusion.

[0009] Preferably, the control circuit module includes a control circuit board, a battery compartment is provided at the bottom of the control circuit board, and batteries are installed in the battery compartment.

[0010] Preferably, the detection leakage protection switch includes a detection switch cap, a connecting piece and a compression spring. A cavity is arranged upward from the bottom end of the detection switch cap, a positioning column is fixed vertically downward in the cavity, and the bottom end of the positioning column slides through the control circuit board. A connecting piece mounted on the positioning column is also arranged in the cavity, and the outer side of the connecting piece extends downward and is horizontally fixed to the lower surface of the detection switch cap, and a compression spring mounted outside the positioning column is fixed between the control circuit board and the connecting piece.

[0011] Preferably, a sensor for non-contact AC voltage detection is provided on the control circuit board.

[0012] Preferably, the top of the switch cap is 0.1 cm higher than the upper surface of the upper cover.

[0013] Preferably, the top of the leakage protection switch is 0.1 cm lower than the upper surface of the annular protrusion.

[0014] The utility model has the following beneficial effects:

[0015] 2. The utility model realizes the function of preventing accidental touch by arranging the leakage protection switch below the upper cover.

[0016] 3. The utility model sets a sensor on the control circuit board. The sensor transmits an electrical signal to the control circuit through an induced electric field. After the control circuit board measures, it displays it through the display module, thereby realizing a non-contact AC voltage detection function (NCV). BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of the utility model;

[0018] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0019] Figure 3 This is an enlarged schematic diagram of point A;

[0020] The reference numerals in the figure are as follows:

[0021] 1. Upper cover; 2. Switch cap; 3. Display module; 4. Detection leakage protection switch; 41. Detection switch cap; 411. Positioning column; 42. Connecting piece; 43. Compression spring; 5. Control circuit module; 51. Control circuit board; 52. Battery compartment; 53. Sensor; 6. Lower cover; 7. Plug module; 8. Battery; 11. Annular protrusion. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1As shown, the socket tester of this embodiment includes a shell, which includes an upper cover 1 with a button hole and a lower cover 6 fixed to the bottom of the upper cover 1, a plug module 7 is arranged on the lower surface of the lower cover 6, a control circuit module 5 for processing data is arranged inside the shell, and a switch cap 2, a leakage protection switch 4 and a display module 3 fixed on the upper surface of the control circuit module 5 are also arranged inside the shell, and the switch cap 2 and the leakage protection switch 4 are arranged in one-to-one correspondence with each button hole; an annular protrusion 11 is fixed to the outer periphery of the top of the button hole corresponding to the leakage protection switch 4, the top of the switch cap 2 passes through the corresponding button hole and is arranged higher than the upper surface of the upper cover 1, and the top of the leakage protection switch 4 is arranged lower than the upper surface of the annular protrusion 11.

[0024] like Figure 1 As shown, the control circuit module 5 includes a control circuit board 51 , a battery compartment 52 is provided at the bottom of the control circuit board 51 , and a battery 8 is installed in the battery compartment 52 .

[0025] like Figure 3 As shown, the detection leakage protection switch 4 includes a detection switch cap 41, a connecting piece 42 and a compression spring 43. A cavity is arranged upward at the bottom end of the detection switch cap 41, and a positioning column 411 is fixed vertically downward in the cavity. The bottom end of the positioning column 411 slides through the control circuit board 51. A connecting piece 42 is also arranged in the cavity and is sleeved on the positioning column 411. The outer side of the connecting piece 42 extends downward and is horizontally fixed to the lower surface of the detection switch cap 41. A compression spring 43 sleeved outside the positioning column 411 is fixed between the control circuit board 51 and the connecting piece 42.

[0026] like Figure 1 As shown, a sensor 53 for non-contact AC voltage detection is disposed on the control circuit board 51 .

[0027] like Figure 2-3 As shown, the top of the switch cap 2 is 0.1 cm higher than the upper surface of the upper cover 1.

[0028] like Figure 2-3 As shown, the top of the leakage protection switch 4 is 0.1 cm lower than the upper surface of the annular protrusion 11.

[0029] The working principle of this utility model:

[0030] The utility model sets the detection switch cap 41 of the leakage protection switch 4 lower than the upper surface of the upper cover 1, so that the staff is not easy to accidentally touch the detection switch cap 41 inside the upper cover 1 from the outside of the upper cover 1 when using it.

[0031] The utility model sets a sensor 53 on the control circuit board 51. The sensor 53 is provided with a copper core wire. The copper core wire forms an electrical signal after inducing an electric field. The signal is then measured through the AD port of the single-chip microcomputer on the control circuit board 5, and the obtained data is then presented through the display module 3, thereby realizing a non-contact AC voltage detection function (NCV).

[0032] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Obviously, the described embodiments are only a part of the present invention.

[0035] All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in this utility model belong to the protection scope of this utility model.

Claims

1. A socket tester, characterized in that: The invention comprises a shell, wherein the shell comprises an upper cover (1) with a key hole and a lower cover (6) fixed to the bottom of the upper cover (1); a plug module (7) is arranged on the lower surface of the lower cover (6); a control circuit module (5) for processing data is arranged inside the shell; a switch cap (2) fixed to the upper surface of the control circuit module (5), a leakage protection switch (4) and a display module (3) are also arranged inside the shell, and the switch cap (2) and the leakage protection switch (4) are arranged in one-to-one correspondence with each key hole; an annular protrusion (11) is fixed on the outer periphery of the top of the key hole corresponding to the leakage protection switch (4); the top of the switch cap (2) passes through the corresponding key hole and is arranged higher than the upper surface of the upper cover (1); and the top of the leakage protection switch (4) is arranged lower than the upper surface of the annular protrusion (11).

2. The socket tester according to claim 1, characterized in that: The control circuit module (5) comprises a control circuit board (51), a battery compartment (52) is provided at the bottom of the control circuit board (51), and a battery (8) is installed in the battery compartment (52).

3. The socket tester according to claim 2, characterized in that: The detection leakage protection switch (4) comprises a detection switch cap (41), a connecting piece (42) and a compression spring (43); a cavity is arranged upward at the bottom end of the detection switch cap (41); a positioning column (411) is fixed vertically downward in the cavity; the bottom end of the positioning column (411) slides through the control circuit board (51); a connecting piece (42) sleeved on the positioning column (411) is also arranged in the cavity; the outer side of the connecting piece (42) extends downward and is horizontally fixed to the lower surface of the detection switch cap (41); a compression spring (43) sleeved outside the positioning column (411) is fixed between the control circuit board (51) and the connecting piece (42).

4. The socket tester according to claim 1, characterized in that: A sensor (53) for non-contact AC voltage detection is arranged on the control circuit board (51).

5. The socket tester according to claim 1, characterized in that: The top of the switch cap (2) is 0.1 cm higher than the upper surface of the upper cover (1).

6. The socket tester according to claim 1, characterized in that: The top of the leakage protection switch (4) is 0.1 cm lower than the upper surface of the annular protrusion (11).

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