A socket wiring tester

Abstract

This utility model belongs to the field of testing instruments and proposes a socket wiring tester, including a housing. Inside the housing are a circuit board and a microcontroller. Outside the housing is a plug electrically connected to the circuit board. The circuit board has a display screen, a leakage current detection button, and an infrared sensing module. The infrared sensing module is electrically connected to the display screen. The housing has a screen cover on the side facing away from the plug. This socket wiring tester, by inserting it into a socket to be tested, can not only detect the socket wiring but also has a one-button leakage current detection function. Furthermore, the infrared sensing module and display screen work together to provide a night light function, improving the utilization rate of the device.

Description

Technical Field

[0001] This utility model belongs to the field of testing instruments, and in particular relates to a socket wiring tester. Background Technology

[0002] The socket wiring tester can be operated while the circuit is energized. Its working principle is to determine whether the wiring is correct by detecting the voltage phase and wiring connections after the socket is connected to the circuit. After insertion, the indicator lights on the tester's panel will illuminate according to the wiring status. Refer to the instruction manual or your testing experience to interpret the fault type.

[0003] Chinese utility model patent CN220543093U discloses a socket tester, including a first split component comprising a first housing, a test main board, and terminals. The test main board and the terminals are respectively disposed in the first housing, and the terminals are electrically connected to the test main board. A second split component comprises a second housing and pins. The second housing is detachably connected to the first housing, and the pins are disposed in the second housing with one end conductively contacting the terminals, and the other end configured to be plugged into the socket to be tested. This socket tester can be used to detect the wiring of sockets. However, the instrument does not have a one-button leakage detection function; if it were plug-and-play, it would affect the accuracy of other testing parameters. Furthermore, while this instrument is frequently used by professional testing personnel, it is rarely used by ordinary people, resulting in a high rate of idle time after routine testing. Utility Model Content

[0004] This utility model addresses the technical problems existing in the aforementioned socket testers by proposing a socket wiring tester with a reasonable design, one-button leakage detection function and night light function, and a high comprehensive utilization rate.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a socket wiring tester, including a housing, a circuit board and a microcontroller inside the housing, a plug electrically connected to the circuit board on the outside of the housing, a display screen, a leakage current detection button and an infrared sensing module on the circuit board, the infrared sensing module being electrically connected to the display screen, a screen cover corresponding to the display screen on the side of the housing facing away from the plug, a button through hole on the screen cover, and a button cap that mates with the button through hole on the leakage current detection button.

[0006] Preferably, the housing includes an upper housing and a lower housing, the lower housing having a through hole through which the prongs of the plug can pass, and the inner side of the lower housing having a pressure plate that cooperates with the plug for positioning.

[0007] Preferably, the edges of the upper housing and the lower housing are nested together by snap-fit ​​sealing.

[0008] Preferably, the upper shell has a circular cross-section with its diameter gradually decreasing from bottom to top.

[0009] Preferably, the lower shell has a circular cross-section with its diameter gradually decreasing from top to bottom.

[0010] Preferably, the inner side of the upper housing is provided with a clamping groove, the clamping groove includes an upper groove edge and a lower groove edge, the screen cover is disposed inside the clamping groove, and the edge of the screen cover is provided with a plurality of positioning slots, the positioning slots cooperating with positioning protrusions disposed on the inner wall of the clamping groove.

[0011] Preferably, the inner side of the clamping groove is provided with a pressure strip located below the screen cover, and the pressure strip has a circular structure.

[0012] Preferably, the upper housing is provided with a plurality of connection holes for mounting screws, which are used to connect the circuit board to the upper housing.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model provides a socket wiring tester. By inserting it into the socket to be tested, it can not only detect the socket wiring but also has a one-button leakage current detection function. Furthermore, by utilizing an infrared sensing module and a display screen, it can provide a night light function at night, which helps to improve the utilization rate of the device. This utility model is reasonably designed, highly practical, and features one-button leakage current detection and a night light function, with a high overall utilization rate, making it suitable for large-scale promotion. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A cross-sectional view of a socket wiring tester provided in an embodiment; Figure 2 An exploded view of a socket wiring tester provided for an embodiment; Figure 3 A perspective view of a socket wiring tester provided for an embodiment; Figure 4 A plan view of the circuit board provided for an embodiment; In the above figures: 1. Outer shell; 11. Upper shell; 12. Lower shell; 13. Buckle; 14. Clamping groove; 141. Upper groove edge; 142. Lower groove edge; 15. Positioning protrusion; 2. Circuit board; 21. Display screen; 22. Leakage detection button; 23. Infrared sensing module; 3. Plug; 4. Screen cover; 41. Positioning slot; 5. Pressure plate; 6. Pressure strip; 7. Screw; 8. Button cap. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Examples, such as Figures 1-4 As shown, the present invention provides a socket wiring tester, including a housing 1. Inside the housing 1, there is a circuit board 2 and a microcontroller. The microcontroller controls the display screen 21 to display the time and the test content through an internal program. The outside of the housing 1 is provided with a plug 3 electrically connected to the circuit board 2. The circuit board 2 is provided with a display screen 21, a leakage current detection button 22 and an infrared sensing module 23. The display screen 21 can display the socket test status. The infrared sensing module 23 is electrically connected to the display screen 21. The housing 1 has a screen cover 4 corresponding to the display screen 21 on the side facing away from the plug 3. Specifically, the bottom of the circuit board 2 is provided with contacts that can engage with the plug 3 for testing; the screen cover 4 is used to protect the display screen 21 from impacts and collisions, and also to protect the circuit board 2 from dust; the screen cover 4 is provided with a button through hole, and the leakage detection button 22 is provided with a button cap 7 that engages with the button through hole. The button cap 7 serves as a protective part for the leakage detection button 22 and is also a direct contact part subjected to force; in addition to the modules required for general wiring testing, the circuit board 2 also has a one-key trigger circuit required for leakage detection. The one-key trigger circuit can be triggered by manually pressing the leakage detection button 22, triggering the current sampling module, signal conditioning module and microcontroller on the circuit board 2 to complete the leakage detection. Triggering the leakage detection will not interfere with other parts of the socket wiring testing, and the microcontroller displays the leakage detection result on the display screen 21.

[0019] As for the display screen 21, besides displaying the socket wiring status, it can also be used as a night light. For example, the infrared sensor module 23 works in conjunction with the internal circuitry of the display screen 21. When an infrared-sensitive object, such as a human body, approaches the display screen 21, it reflects more infrared light to the infrared sensor module 23. The infrared sensor module 23 converts the light signal into an electrical signal, which is then processed by the circuitry of the display screen 21 to trigger and wake the screen. Therefore, the device can be plugged into a known working socket at night and used as a night light. Thus, this device is highly practical and its utilization rate is improved.

[0020] To facilitate assembly, the outer shell 1 provided by this utility model adopts a split assembly design, including an upper shell 11 and a lower shell 12. The circuit board 2, plug 3, and screen cover 4 can be first assembled onto the corresponding upper shell 11 and lower shell 12, and then snapped together to form a complete outer shell 1. Furthermore, the lower shell 12 is provided with a through hole through which the prongs of the plug 3 can pass, and the inner side of the lower shell 12 is provided with a pressure plate 5 that limits and cooperates with the plug 3. The pressure plate 5 is a one-piece molded part manufactured by a mold. After molding, it has a through hole structure that cooperates with the top contact structure of the plug 3. The edge of the pressure plate 5 can be fixed to the lower shell 12 with screws, thereby positioning the plug 3 while ensuring a stable and reliable contact relationship between the top contact structure of the plug 3 and the circuit board 2, which is beneficial to ensuring the detection performance of this device.

[0021] Furthermore, the edges of the upper housing 11 and the lower housing 12 provided by this utility model are sealed and nested by a buckle 13. The buckle 13 has an inner hook structure, and the snap-fit ​​position that cooperates with it is designed as a rectangular opening, so that the buckle 13 can be flipped and snapped at the rectangular opening. At the same time, one of the edges of the upper housing 11 and the lower housing 12 can adopt a design with a narrowed opening, so as to better form a sealed nesting relationship with the other, and the overall outer contour transition is natural, achieving a certain aesthetic requirement.

[0022] To improve the practicality of this device, it features a compact design and is also designed for ease of handheld use. For example, the upper housing 11 has a circular cross-section with its diameter gradually decreasing from bottom to top; similarly, the lower housing 12 has a circular cross-section with its diameter gradually decreasing from top to bottom. This design ensures both effective assembly space and an external contour that matches the shape of a clenched fist, facilitating handheld use and providing good stability and comfort.

[0023] To improve the stability of the screen cover 4, from an assembly perspective, the upper housing 11 provided by this utility model is provided with a clamping groove 14 on its inner side. The clamping groove 14 includes an upper groove edge 141 and a lower groove edge 142. The screen cover 4 is disposed inside the clamping groove 14, and the edge of the screen cover 4 is provided with multiple positioning slots 41. The positioning slots 41 cooperate with positioning protrusions 15 provided on the inner wall of the clamping groove 14. The positioning protrusions 15 adopt a semi-cylindrical design, and the positioning slots 41 also adopt a corresponding arc surface. The screen cover 4 can be slightly bent and deformed during assembly to be inserted into the clamping groove 14, and a positioning node is formed at the cooperation position between the positioning protrusion and the positioning slot. In addition, the clamping cooperation between the upper groove edge 141 and the lower groove edge 142 can provide a reasonable clamping space for the screen cover 4.

[0024] Furthermore, this invention provides a pressure strip 6 located below the screen cover plate 4 on the inner side of the clamping groove 14. The pressure strip 6 has a certain elasticity and is a circular ring structure. The clamping groove 14 has a certain depth, which facilitates the screen cover plate 4 to be inserted into the clamping groove 14 from an inclined position. Inserting the pressure strip into the clamping groove 14 can compensate for the assembly gap between the clamping groove 14 and the screen cover plate 4, further improving the stability of the screen cover plate 4.

[0025] like Figure 2 As shown, an elastic support buckle that can cooperate with the positioning protrusion is provided on the edge of the pressure strip, and a support opening that can cooperate with the elastic support buckle is designed on the lower groove side of the clamping groove 14. This can improve the stability of the pressure strip in the clamping groove 14, thereby ensuring its positioning effect on the screen cover plate 4.

[0026] To facilitate fixing the circuit board 2, the upper housing 11 provided by this utility model is provided with a plurality of connecting holes, which are used to install screws 7, and the screws 7 are used to connect the circuit board 2 and the upper housing 11.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A socket wiring tester, comprising a housing, wherein a circuit board and a microcontroller are disposed inside the housing, and a plug electrically connected to the circuit board is disposed outside the housing, characterized in that, The circuit board is equipped with a display screen, a leakage current detection button, and an infrared sensing module. The infrared sensing module is electrically connected to the display screen, and the housing has a screen cover on the side facing away from the plug.

2. The socket wiring tester according to claim 1, characterized in that, The screen cover is provided with a button through hole, and the leakage current detection button is provided with a button cap that mates with the button through hole.

3. A socket wiring tester according to claim 2, characterized in that, The outer casing includes an upper casing and a lower casing. The lower casing has a through hole through which the prongs of the plug can pass. The inner side of the lower casing has a pressure plate that cooperates with the plug for positioning.

4. A socket wiring tester according to claim 3, characterized in that, The edges of the upper housing and the lower housing are nested together by snap-fit ​​sealing.

5. A socket wiring tester according to claim 4, characterized in that, The upper shell has a circular cross-section with its diameter gradually decreasing from bottom to top, and the lower shell has a circular cross-section with its diameter gradually decreasing from top to bottom.

6. A socket wiring tester according to claim 5, characterized in that, The inner side of the upper housing is provided with a clamping groove, which includes an upper groove edge and a lower groove edge. The screen cover is disposed inside the clamping groove, and the edge of the screen cover is provided with multiple positioning slots. The positioning slots cooperate with positioning protrusions disposed on the inner wall of the clamping groove.

7. A socket wiring tester according to claim 6, characterized in that, The inner side of the clamping groove is provided with a pressure strip located below the screen cover, and the pressure strip has a circular structure.

8. A socket wiring tester according to claim 7, characterized in that, The upper housing is provided with multiple connection holes, which are used to install screws, and the screws are used to connect the circuit board to the upper housing.

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