Digital display testing pen

Abstract

The application relates to the technical field of electric pen testers, and provides a digital display electric pen, which comprises a pen body, a test probe, a circuit board, a display assembly, a panel gland and a battery cover. The pen body is integrally formed, one end of the pen body is embedded with the test probe, and the other end is a cavity structure. The end of the cavity structure away from the test probe is open, two clamping grooves are arranged in the cavity structure, the two clamping grooves are oppositely arranged, the two clamping grooves extend along the length direction of the pen body, and the circuit board is clamped in the two clamping grooves through the opening. The display assembly is arranged in parallel with the circuit board, a window hole is arranged on one side of the cavity structure, the panel gland is provided with an observation hole, the panel gland is clamped in the cavity structure and covers the edge of the display assembly on the outside, and the positions of the window hole and the observation hole correspond to the display assembly. The battery cover covers the opening, and the battery cover is provided with a conductive part. The application does not need to use screws, is quick to assemble, and has good structure sealing performance.

Description

Technical Field

[0001] This application relates to the field of voltage tester technology, and in particular to a digital display voltage tester. Background Technology

[0002] Currently, there are two types of voltage testers on the market: the older LED / neon bulb voltage tester and the digital display voltage tester. The older LED / neon bulb voltage tester has a better sealed structure, but lacks a digital display function, failing to meet users' diverse needs for voltage testers. While current digital display voltage testers do have a digital display function, the pen body is generally assembled from multiple parts. This reduces the structural sealing of the voltage tester and also results in low assembly efficiency. Furthermore, the digital display function of existing digital display voltage testers is implemented by a circuit board and display components. There are two methods for fixing the circuit board: one is to fix the circuit board to the pen body with screws, which leads to low assembly efficiency; the other is to fix the circuit board to the pen body using ultrasonic technology, which significantly increases the scrap rate of the voltage tester. Utility Model Content

[0003] To address the aforementioned problems, this application provides a digital display voltage tester with an ingenious design and simple structure. This application eliminates the need for screws, allows for quick assembly, and provides excellent structural sealing. The technical solution adopted in this application is as follows:

[0004] A digital display test pen includes: a pen body, a test probe, a circuit board, a display component, a panel cover, and a battery cover;

[0005] The pen body is integrally formed, with the test probe embedded at one end and a cavity structure at the other end; the end of the cavity structure away from the test probe is open, and two slots are provided inside the cavity structure. The openings of the two slots are arranged opposite each other and the two slots extend along the length direction parallel to the pen body. The circuit board is snapped into the two slots located in the cavity structure through the open end, and the test probe is electrically connected to the circuit board.

[0006] The display component is electrically connected to the circuit board and is arranged parallel to the circuit board. A window is provided on one side of the cavity structure, and an observation hole is provided on the panel cover. The panel cover is snapped onto the cavity structure and covers the outer edge of the display component. The positions of the window and the observation hole are corresponding to the display component.

[0007] The battery cover seals the opening, and the battery cover is provided with a conductive element.

[0008] This digital display voltage tester can be assembled without screws. By securing the circuit board in a slot within a hollow structure, the circuit board fixing method is optimized, eliminating the need for screws and ultrasonic processes. The one-piece molding of the pen body enhances the overall strength of the voltage tester, reducing the risk of damage from accidental drops, while also improving the structural sealing. The snap-fit ​​connection between the panel cover and the pen body ensures efficient installation of the panel cover; furthermore, the panel cover, pressing against the outer edge of the display component, reinforces and secures the display component.

[0009] In some embodiments, a switch button and a switch element are also included. The switch element and the display component are located on the same side of the circuit board. The switch element is located between the test probe and the display component in the length direction of the pen body. A through hole is provided on one side of the cavity structure. The position of the through hole corresponds to the switch element. The switch button is located outside the through hole. The panel cover is provided with a clearance hole adapted to the switch button. The switch button is engaged between the panel cover and the outer wall of the cavity structure.

[0010] By setting a switch button and switching element, the test pen can be controlled to turn on and off. It can be turned on when needed and turned off when not in use, thus saving energy and ensuring the test pen's battery life. The switch button is easily fixed by being positioned between the panel cover and the outer wall of the cavity structure.

[0011] In some embodiments, a buzzer is provided within the cavity structure, the buzzer being electrically connected to the circuit board and located on the side of the circuit board away from the display component.

[0012] By incorporating a buzzer, which serves as an audible alert or alarm, the functionality of the test pen is expanded, enhancing the user experience. By placing the buzzer and display components on opposite sides of the circuit board, the length of the circuit board along the length of a single test pen can be shortened. This also allows for a more compact layout within the cavity structure, facilitating miniaturization and portability of the test pen.

[0013] In some embodiments, a pen clip is provided on the side of the pen body away from the panel cover.

[0014] By adding a clip, the functionality of the voltage tester is increased, making it easier to clip the voltage tester to a pocket or tool bag.

[0015] In some embodiments, the pen clip includes a clamping part and a mounting part, the mounting part being a hollow structure, one end of the mounting part being inserted into the opening, and the other end being screwed to the battery cover.

[0016] By connecting the clip mounting part to the open plug, the connection stability between the clip and the pen body is ensured, making it less likely for the clip to fall off the pen body.

[0017] In some embodiments, a stripping section is provided between the pen body and the pen clip on the side away from the panel cover, the stripping section being used to strip the outer sheath of the cable.

[0018] By setting a wire stripping position, the test pen can be equipped with a wire stripping function, which increases the number of functions of the test pen and eliminates the need for users to carry special tools for wire stripping.

[0019] In some implementations, there are multiple stripping positions, and each stripping position is adapted to a cable of a different diameter.

[0020] By setting multiple stripping positions to adapt to different cable diameters, the test pen can strip the outer sheath of cables of various diameters, thus improving its applicability to cables of different thicknesses.

[0021] In some embodiments, the pen clip is provided with a lifting part, which is located at the end of the pen clip and gradually tilts upwards in the direction away from the pen clip and away from the pen body along the length of the pen body.

[0022] By incorporating a lifting section that curves away from the pen body, the design facilitates the entry of the cable to be stripped into the stripping area and allows for easy cutting of the cable sheath. The curved lifting section provides a point of force for pulling and pressing the pen clip, making it easy to lift and providing space for the cable to enter the stripping area. Once the cable is in the stripping area, the curved lifting section provides ample pressing space, enabling effective cutting of the cable sheath. Furthermore, the curved lifting section also acts as a guide, facilitating the cable's entry into the stripping area.

[0023] In some embodiments, the circuit board and the test probe are connected by a flexible conductive connection.

[0024] The flexible conductive connection between the circuit board and the test probe ensures the stability of the electrical connection between them and reduces the risk of loose connections.

[0025] In some embodiments, a first conductive sheet is erected on the circuit board, the first conductive sheet being close to one end of the circuit board near the test probe, and a conductive spring is pressed between the first conductive sheet and the test probe.

[0026] The digital display test pen provided in this application has at least one of the following beneficial effects:

[0027] 1. This application provides a digital display voltage tester that can be assembled without the use of screws. By snapping the circuit board into a slot located within a cavity structure, the method of fixing the circuit board is optimized, eliminating the need for screws and ultrasonic processes. The pen body is integrally molded, improving the overall strength of the voltage tester and reducing the risk of damage due to accidental drops, while also improving the structural sealing of the voltage tester. The snap-fit ​​between the panel cover and the pen body ensures the installation efficiency of the panel cover; furthermore, the panel cover presses against the outer edge of the display component, reinforcing and securing the display component.

[0028] 2. This application provides a digital display voltage tester that, by setting a switch button and a switching element, enables on / off control of the voltage tester. When the voltage tester is needed, it is turned on to enter the working state, and when not in use, it is turned off to enter the non-working state, thus saving energy and ensuring the voltage tester's battery life. The switch button is fixed by being clipped between the panel cover and the outer wall of the cavity structure, making the implementation simple.

[0029] 3. The digital display voltage tester provided in this application includes a buzzer, which serves as an audible prompt or alarm, increasing the functionality of the voltage tester and improving the user experience. By placing the buzzer and display components on the front and back of the circuit board respectively, the length of the circuit board along the length of a single test pen can be shortened, while making the layout within the cavity structure more compact, which is beneficial for miniaturization and portability of the voltage tester.

[0030] 4. The digital display voltage tester provided in this application increases the number of functions of the voltage tester by setting a clip, making it easy to clip the voltage tester to a pocket or tool bag.

[0031] 5. The digital display test pen provided in this application ensures the connection stability between the pen clip and the pen body by connecting the mounting part of the pen clip to the open plug-in, making it difficult for the pen clip to fall off the pen body.

[0032] 6. The digital display test pen provided in this application has a wire stripping function by setting a wire stripping position, which increases the function types of the test pen and eliminates the need for users to carry special tools for wire stripping.

[0033] 7. The digital display test pen provided in this application, by setting multiple stripping positions adapted to different cable diameters, enables the test pen to strip the outer sheath of cables of various diameters, thereby improving the applicability of the test pen to cables of different thicknesses.

[0034] 8. The digital display test pen provided in this application, by setting a lifting part that is tilted away from the pen body, makes it easy for the cable to be stripped to enter the stripping position and for the cable sheath to be cut. The tilted lifting part provides a force point for lifting and pressing the pen clip, making it easy to lift the pen clip and providing space for the cable to be stripped to enter the stripping position. After the cable enters the stripping position, the tilted lifting part provides a large pressing space, allowing the cable sheath to be effectively cut. In addition, the tilted lifting part also acts as a guide, facilitating the cable to enter the stripping position.

[0035] 9. The digital display test pen provided in this application ensures the stability of the electrical connection between the circuit board and the test probe through the elastic conductive connection between the circuit board and the test probe, and reduces the risk of loose connection between the circuit board and the test probe. Attached Figure Description

[0036] The preferred embodiments will be described below in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of a digital display test pen:

[0037] Figure 1 This is a schematic diagram of the digital display test pen.

[0038] Figure 2 This is a schematic diagram of the overall structure of the pen.

[0039] Figure 3 yes Figure 2 Another perspective on the embodiments;

[0040] Figure 4 This is a cross-sectional view of the hollow structure of the digital display test pen.

[0041] Figure 5 This is a cross-sectional view of the hollow structure of the digital display test pen.

[0042] Figure 6 This is an exploded view of a digital display voltage tester;

[0043] Figure 7 This is a schematic diagram of the internal components of a digital display test pen;

[0044] Figure 8 yes Figure 7 A schematic diagram of the circuit board portion in the embodiment;

[0045] Figure 9 This is a structural diagram of the panel cover;

[0046] Figure 10 This is a schematic diagram of the pen clip structure.

[0047] Explanation of icon numbers:

[0048] Pen body 1, opening 11, slot 12, window 13, through hole 14, snap-fit ​​hole 15, test probe 2, circuit board 3, first conductive sheet 31, conductive spring 32, second conductive sheet 33, third conductive sheet 34, display assembly 4, switch button 41, switch element 42, panel cover 5, observation hole 51, clearance hole 52, snap-fit ​​part 53, battery cover 6, conductive part 61, buzzer 7, pen clip 8, clamping part 81, mounting part 82, lifting part 83, wire stripping position 9, button battery 10. Detailed Implementation

[0049] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0050] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0051] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0052] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0054] refer to Figures 1-9 This application provides a digital display test pen, including: pen body 1, test probe 2, circuit board 3, display component 4, panel cover 5, and battery cover 6;

[0055] The pen body 1 is integrally formed, with a test probe 2 embedded at one end and a cavity structure at the other end; the end of the cavity structure away from the test probe 2 is an opening 11, and two slots 12 are provided inside the cavity structure. The openings of the two slots 12 are arranged opposite each other and the two slots 12 extend along the length direction parallel to the pen body 1. The circuit board 3 is snapped into the two slots 12 located in the cavity structure through the opening 11, and the test probe 2 is electrically connected to the circuit board 3.

[0056] Display component 4 is electrically connected to circuit board 3. Display component 4 is arranged parallel to circuit board 3. A window 13 is provided on one side of the cavity structure. An observation hole 51 is provided on the panel cover 5. The panel cover 5 is snapped into the cavity structure and covers the outer edge of the display component 4. The positions of window 13 and observation hole 51 are corresponding to display component 4.

[0057] The battery cover 6 seals the opening 11, and a conductive element 61 is provided on the battery cover 6. When using a test pen for testing, the end of the test probe 2 is placed against the object to be tested, and the user's finger presses on the conductive element 61, thereby forming a closed circuit to achieve the detection of the object to be tested.

[0058] Specifically, refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 9 In one embodiment, the cavity structure is provided with snap-fit ​​holes 15, which are distributed around the window hole 13. The panel cover 5 is provided with a snap-fit ​​part 53. The panel cover 5 achieves snap-fit ​​with the pen body 1 through the cooperation of the snap-fit ​​part 53 and the snap-fit ​​hole 15.

[0059] It is easy to understand that this digital display voltage tester can be assembled without the use of screws. By snapping the circuit board 3 into the slot 12 located within the cavity structure, the fixing method of the circuit board 3 is optimized, eliminating the need for screws and ultrasonic processes. The pen body 1 is integrally molded, which improves the overall strength of the voltage tester, reduces the risk of damage caused by accidental drops, and improves the structural sealing of the voltage tester. The snap-fit ​​between the panel cover 5 and the pen body 1 ensures the installation efficiency of the panel cover 5; in addition, the panel cover 5 presses against the outer edge of the display component 4, which strengthens the fixation of the display component 4.

[0060] refer to Figures 1-9In one embodiment, the digital display test pen further includes a switch button 41 and a switch element 42. The switch element 42 and the display component 4 are located on the same side of the circuit board 3. In the length direction of the pen body 1, the switch element 42 is located between the test probe 2 and the display component 4. A through hole 14 is provided on one side of the cavity structure. The position of the through hole 14 corresponds to the switch element 42. The switch button 41 is located outside the through hole 14. The panel cover 5 is provided with a clearance hole 52 adapted to the switch button 41. The switch button 41 is engaged between the panel cover 5 and the outer wall of the cavity structure.

[0061] It is important to note that by setting the switch button 41 and the switch element 42, the on / off control of the test pen can be achieved. When the test pen is needed, it is turned on and put into working state; when it is not needed, it is turned off and put into non-working state. This saves energy and ensures the test pen's battery life. The switch button 41 is fixed by being snapped between the panel cover 5 and the outer wall of the cavity structure, which is a simple implementation method.

[0062] refer to Figures 4-8 In one embodiment, a buzzer 7 is provided within the cavity structure. The buzzer 7 is electrically connected to the circuit board 3 and located on the side of the circuit board 3 away from the display component 4. It is understood that by providing the buzzer 7, it serves as an audible prompt or alarm, increasing the functionality of the test pen and improving the user experience. By placing the buzzer 7 and the display component 4 on the front and back sides of the circuit board 3 respectively, the length of the circuit board 3 along the length of the single test pen can be shortened, while the layout within the cavity structure becomes more compact, which is beneficial for miniaturizing and portability of the test pen.

[0063] refer to Figure 1 , Figures 4-6 , Figure 10 In one embodiment, a pen clip 8 is provided on the side of the pen body 1 away from the panel cover 5. By providing the pen clip 8, the functionality of the voltage tester is increased, and it is convenient to clip the voltage tester 8 to a pocket or tool bag.

[0064] Specifically, refer to Figure 1 , Figures 4-6 , Figure 10 In one embodiment, the pen clip 8 includes a clamping part 81 and a mounting part 82. The mounting part 82 has a hollow structure, with one end inserted into the opening 11 and the other end screwed to the battery cover 6. By connecting the mounting part 82 of the pen clip 8 to the opening 11, the connection stability between the pen clip 8 and the pen body 1 is ensured, making it difficult for the pen clip 8 to fall off the pen body 1.

[0065] refer to Figure 1 , Figures 4-6 , Figure 10In one embodiment, a stripping position 9 is provided between the side of the pen body 1 away from the panel cover 5 and the pen clip 8, the stripping position 9 being used to strip the outer sheath of the cable.

[0066] Specifically, a wire stripper blade is mounted on the pen body 1 at a position corresponding to the pen clip 8, and a wire stripper blade is also mounted on the pen clip 8, with the cutting edges of the two wire stripper blades facing each other. It can be understood that by setting the wire stripping position 9, the test pen has a wire stripping function, increasing the number of functions available to the test pen, and eliminating the need for users to carry special tools for wire stripping.

[0067] Further, refer to Figure 1 , Figures 4-6 , Figure 10 In one embodiment, there are multiple stripping positions 9, and each stripping position 9 is adapted to cables of different diameters. It is worth noting that by setting multiple stripping positions 9 adapted to different cable diameters, the test pen can strip the outer sheath of cables of various diameters, thereby improving the applicability of the test pen to cables of different thicknesses.

[0068] refer to Figure 1 , Figure 4 , Figure 6 , Figure 10 In one embodiment, the pen clip 8 is provided with a lifting part 83, which is located at the end of the pen clip 8. The lifting part 83 gradually tilts away from the pen body 1 along the length direction of the pen body 1.

[0069] Notably, the lifting part 83, which is tilted away from the pen body 1, facilitates the entry of the cable to be stripped into the stripping position 9 and the cutting of the cable sheath. The tilted lifting part 83 provides a point of force for lifting and pressing the pen clip 8, making it easy to lift and providing space for the cable to be stripped into the stripping position 9. Once the cable is in the stripping position 9, the tilted lifting part 83 provides ample pressing space, allowing the cable sheath to be effectively cut. Furthermore, the tilted lifting part 83 also acts as a guide, facilitating the cable's entry into the stripping position 9.

[0070] In one embodiment, the circuit board 3 and the test probe 2 are connected by a flexible conductive connection. It is easy to understand that this flexible conductive connection ensures the stability of the electrical connection between the circuit board 3 and the test probe 2, reducing the risk of a loose connection between them.

[0071] Specifically, refer to Figure 4 , Figures 6-8 In one embodiment, a first conductive sheet 31 is erected on the circuit board 3. The first conductive sheet 31 is close to the end of the circuit board 3 that is close to the test probe 2. A conductive spring 32 is pressed between the first conductive sheet 31 and the test probe 2.

[0072] refer to Figure 4 , Figures 6-8 In one embodiment, the end of the circuit board 3 furthest from the test probe 2 is provided with a second conductive sheet 33 and a third conductive sheet 34. A spring is provided on the side of the conductive element 61 closest to the circuit board 3. A button battery 10 is pressed between the second conductive sheet 33 and the spring of the conductive element 61. The end of the third conductive sheet 34 furthest from the circuit board 3 abuts against the conductive element 61. It can be understood that the second conductive sheet 33, the third conductive sheet 34, the conductive element 61, the spring, and the button battery 10 provide power to the circuit board 3 or components. The presence of the third conductive sheet 34 enables the sequential electrical connection of the test probe 2, the conductive spring 32, the first conductive sheet 31, the circuit board 3, the third conductive sheet 34, and the conductive element 61.

[0073] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A digital display test pen, characterized in that, include: Pen body, test probe, circuit board, display assembly, panel cover, battery cover; The pen body is integrally formed, with the test probe embedded at one end and a cavity structure at the other end; the end of the cavity structure away from the test probe is open, and two slots are provided inside the cavity structure. The openings of the two slots are arranged opposite each other and the two slots extend along the length direction parallel to the pen body. The circuit board is snapped into the two slots located in the cavity structure through the open end, and the test probe is electrically connected to the circuit board. The display component is electrically connected to the circuit board and is arranged parallel to the circuit board. A window is provided on one side of the cavity structure, and an observation hole is provided on the panel cover. The panel cover is snapped onto the cavity structure and covers the outer edge of the display component. The positions of the window and the observation hole are corresponding to the display component. The battery cover seals the opening, and the battery cover is provided with a conductive element.

2. A digital display test pen according to claim 1, characterized in that, It also includes a switch button and a switch element, the switch element and the display component are located on the same side of the circuit board, and the switch element is located between the test probe and the display component in the length direction of the pen body; a through hole is provided on one side of the cavity structure, the position of the through hole corresponds to the switch element, the switch button is located outside the through hole, the panel cover is provided with a clearance hole adapted to the switch button, and the switch button is engaged between the panel cover and the outer wall of the cavity structure.

3. A digital display test pen according to claim 1, characterized in that, A buzzer is provided inside the cavity structure. The buzzer is electrically connected to the circuit board and is located on the side of the circuit board away from the display component.

4. A digital display test pen according to claim 1, characterized in that, The pen body has a clip on the side away from the panel cover.

5. A digital display test pen according to claim 4, characterized in that, The pen clip includes a clamping part and a mounting part. The mounting part has a hollow structure, with one end inserted into the opening and the other end screwed to the battery cover.

6. A digital display test pen according to claim 4, characterized in that, A stripping section is provided between the pen body and the pen clip on the side away from the panel cover, and the stripping section is used to strip the outer sheath of the cable.

7. A digital display test pen according to claim 6, characterized in that, There are multiple stripping positions, and each stripping position is adapted to cables of different diameters.

8. A digital display test pen according to claim 6, characterized in that, The pen clip is provided with a lifting part, which is located at the end of the pen clip. In the length direction of the pen body, the lifting part gradually tilts upwards in the direction away from the pen clip and away from the pen body.

9. A digital display test pen according to claim 1, characterized in that, The circuit board and the test probe are connected by an elastic conductive connection.

10. A digital display test pen according to claim 9, characterized in that, A first conductive sheet is erected on the circuit board, with the first conductive sheet near the end of the circuit board that is close to the test probe, and a conductive spring is pressed between the first conductive sheet and the test probe.

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