Intelligent induction test pencil

Abstract

The utility model relates to an intelligent induction test pencil, which comprises a screwdriver, a circuit board assembly, a display assembly, an upper cover, a lower cover, function keys, an illuminating lamp, a contact nut and a power supply, the upper cover and the lower cover are fixed on the circuit board assembly through self-tapping screws, and the upper cover and the lower cover are fixedly connected through self-tapping screws. A groove is formed in the front end of the upper cover, and the screwdriver is inserted into the groove to be fixedly connected with the circuit board assembly and electrically connected with the circuit board assembly through the contact spring. A display opening is formed in the side, close to the screwdriver, of the surface of the upper cover, and the display assembly is electrically connected with the circuit board assembly and fixed to the display opening. A plurality of key openings are formed in the side, away from the screwdriver, of the surface of the upper cover, and the function keys are electrically connected with the circuit board and fixed to the key openings. The surface of the lower cover is provided with a groove for placing the power supply, and the power supply is electrically connected with the circuit board assembly and is fixed in the groove.

Description

Technical Field

[0001] The utility model relates to an intelligent induction electric test pen, belonging to the technical field of electric test pens. Background Art

[0002] Smart induction electric test pens have very wide applications in the field of measurement, involving all large, medium and small electronic industries. 1. The screwdriver and shell of a general electric tester are injection molded together, and the screwdriver and the circuit board are connected by welding wires. There are many steps in assembly, which is inconvenient, and the plastic shell is easily worn and burned during welding. 2. The induction buttons are small and costly, and it is inconvenient to touch the induction buttons during measurement. 3. When the function buttons are used in conjunction with the touch switches, abnormal noises will be emitted when shaken. 4. The exposed position of the lighting lamp is not fixed, and usually an accessory needs to be added to the shell to support the lighting lamp or to be fixed with glue. This process is complicated and inconvenient to assemble. Therefore, smart induction electric test pens that can meet the requirements of no welding between the pen tip and the circuit board, larger induction buttons, function buttons without abnormal noises, and no need for gluing or adding accessory lighting have been born. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides an integrated Rogowski coil.

[0004] The technical solution of the utility model is as follows:

[0005] An intelligent induction electric test pen comprises a screwdriver, a circuit board assembly, a display assembly, an upper cover, a lower cover, a function key, a lighting lamp, a contact nut and a power supply;

[0006] The upper cover and the lower cover are both fixed to the circuit board assembly by self-tapping screws, and the upper cover and the lower cover are also fixedly connected by self-tapping screws; a groove is provided at the front end of the upper cover, the screwdriver is inserted into the groove and fixedly connected to the circuit board assembly, and is electrically connected to the circuit board assembly through a contact spring; a display opening is provided on the side of the upper cover surface close to the screwdriver, and the display assembly is electrically connected to the circuit board assembly and fixed at the display opening; a plurality of key openings are provided on the side of the upper cover surface away from the screwdriver, and the function keys are electrically connected to the circuit board and fixed at the key openings; a groove is provided on the surface of the lower cover for placing the power supply, and the power supply is electrically connected to the circuit board assembly and fixed in the groove; a contact spring is sleeved on the shaft of the contact nut, a through hole is provided on the surface of the lower cover close to the power supply, and the contact nut is fixed in the through hole and connected to the circuit board assembly;

[0007] A lighting through hole is also provided on one side of the upper cover surface close to the screwdriver. The lighting lamp is electrically connected to the circuit board and fixed on the circuit board assembly and passes through the lighting through hole.

[0008] Preferably, the circuit board assembly includes two touch switches, a battery electrode and a circuit board, the touch switches and the battery electrode are fixedly mounted on the upper and lower surfaces of the circuit board respectively, the touch switches are connected to the function keys, and the battery electrode is connected to the power supply.

[0009] Preferably, the function keys include two function buttons, one function button and one function button. Both the function button one and the function button two are provided with elastic ribs. Both the function button one and the function button two are connected to the touch switch on the circuit board through the elastic ribs.

[0010] Preferably, the display assembly comprises a lens, a liquid crystal display, a backlight source and a conductive rubber; the lens, the liquid crystal display, the backlight source and the conductive rubber are sequentially placed into the display opening.

[0011] Preferably, a positioning column is provided at one end of the contact spring at the screwdriver, a boss is provided at one end of the circuit board close to the screwdriver, and a positioning hole is provided on the surface of the circuit board close to the boss, the contact spring passes through the boss and is fixedly connected to the circuit board through the positioning column and the positioning hole, and the screwdriver passes through the contact spring and is fixedly connected to the boss.

[0012] Preferably, the power source includes a battery and a battery cover, the battery is installed in a groove on the surface of the lower cover, and the battery cover is fixed to the groove by a nut.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, the utility model realizes electrical connection between the screwdriver and the circuit board through the contact spring, thus avoiding burns to the pen body shell by welding.

[0015] 2. The function keys of the utility model are connected to the circuit board through the rebound ribs, which makes the contact easier, does not cause abnormal noise in the prior art, and realizes automatic rebound of the function keys.

[0016] 3. After the circuit board and the upper cover of the utility model are fixed by screws, the contact spring is assembled after the nut is pressed into the lower cover, the lower cover and the upper cover are fixed by screws, the contact spring is in contact with the circuit board and connected, and the battery cover and the lower cover and the nut are locked with machine screws to achieve conduction between the battery cover and the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the exploded view of the accessories of the smart induction tester;

[0018] Figure 2 It is a schematic diagram for installing the circuit board components;

[0019] Figure 3 This is a schematic diagram for installing the function buttons;

[0020] Figure 4 The schematic diagram for lighting installation is shown below;

[0021] Figure 5 This is a schematic diagram of the installation of the contact spring and the circuit board;

[0022] Figure 6 This is the effect diagram of the contact spring and circuit board installation completion;

[0023] Figure 7 This is the effect picture of the screwdriver installation completion;

[0024] Figure 8 This is the effect picture of the contact nut installation completion;

[0025] Fig. 9 This is a schematic diagram of the power supply installation;

[0026] Fig.10 These are the three views of the smart induction electric tester after installation.

[0027] The reference numerals in the figure are as follows:

[0028] 1. Screwdriver; 2. Circuit board assembly; 3. Display assembly; 4. Upper cover; 5. Lower cover; 6. Function buttons; 7. Lighting lamp; 8. Positioning column; 9. Boss; 10. Positioning hole; 11. Contact nut; 21. Touch switch; 22. Battery pole; 61. Function button one; 62. Function button two; 31. Lens; 32. Liquid crystal display; 33. Backlight; 34. Conductive rubber; DETAILED DESCRIPTION

[0029] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 As shown, the smart induction test pen of this embodiment includes a screwdriver 1, a circuit board assembly 2, a display assembly 3, an upper cover 4, a lower cover 5, a function button 6, a lighting lamp 7, a contact nut 11 and a power supply;

[0031] The upper cover 4 and the lower cover 5 are both fixed to the circuit board assembly 2 by self-tapping screws, and the upper cover 4 and the lower cover 5 are also fixedly connected by self-tapping screws; a groove is provided at the front end of the upper cover, and the screwdriver 1 is inserted into the groove and fixedly connected to the circuit board assembly 2, and is electrically connected to the circuit board assembly 2 through a contact spring; a display opening is provided on the surface of the upper cover 4 close to the screwdriver 1, and the display assembly 3 is electrically connected to the circuit board assembly 2 and fixed at the display opening; a plurality of key ports are provided on the surface of the upper cover 4 away from the screwdriver 1, and the function key 6 is electrically connected to the circuit board and fixed at the key port; a groove for placing the power supply is provided on the surface of the lower cover 5, and the power supply is electrically connected to the circuit board assembly 2 and fixed in the groove; a contact spring is sleeved on the shaft of the contact nut 11, and a through hole is provided on the surface of the lower cover 5 close to the power supply, and the contact nut is fixed in the through hole and connected to the circuit board assembly 2;

[0032] A lighting through hole is also provided on one side of the surface of the upper cover 4 close to the screwdriver 1 . The lighting lamp 7 is electrically connected to the circuit board and fixed on the circuit board assembly 2 , and passes through the lighting through hole.

[0033] Furthermore, the circuit board assembly 2 includes two touch switches 21, a battery electrode 22 and a circuit board. The touch switch 21 and the battery electrode 22 are fixedly mounted on the upper and lower surfaces of the circuit board respectively. The touch switch 21 is connected to the function button 6, and the battery electrode 22 is connected to the power supply.

[0034] Furthermore, the function button 6 includes two function buttons 1 61 and 62, and both the function button 1 61 and 62 are installed with elastic ribs, and both the function button 1 61 and 62 are connected to the touch switch 21 on the circuit board through the elastic ribs.

[0035] Furthermore, the display assembly 3 includes a lens 31 , a liquid crystal display 32 , a backlight source 33 and a conductive rubber 34 ; the lens 31 , the liquid crystal display 32 , the backlight source 33 and the conductive rubber 34 are sequentially placed into the display opening.

[0036] Furthermore, a positioning column 8 is provided at one end of the contact spring at the screwdriver 1, a boss 9 is provided at the end of the circuit board close to the screwdriver 1, and a positioning hole 10 is opened on the surface of the circuit board close to the boss. The contact spring passes through the boss 9 and is fixedly connected to the circuit board through the positioning column 8 and the positioning hole 10, and the screwdriver 1 passes through the contact spring and is fixedly connected to the boss 9.

[0037] Furthermore, the power source includes a battery and a battery cover. The battery is installed in a groove on the surface of the lower cover 5, and the battery cover is fixed to the groove by a nut.

[0038] In this embodiment, the assembly sequence of the smart induction tester is as follows:

[0039] like Figure 2As shown, the touch switch 21 and the battery electrode 22 are pre-tinned and fixed to the circuit board to form a circuit board assembly 2; the lens 31, the liquid crystal display 32, the backlight source 33, and the conductive rubber 34 are sequentially placed in the display opening of the upper cover 4 and fixed; Figure 3 and Figure 4 As shown, the function key 6 is installed into the key opening on the surface of the upper cover 4 and fixed, the lighting lamp 7 is electrically connected to the circuit board and fixed on the circuit board assembly 2, and passes through the lighting through hole; Figure 5 As shown, insert the positioning column 8 of the contact spring into the positioning hole 10 of the circuit board assembly 2 and assemble the contact spring to the boss 9 of the circuit board assembly 2 and then install it into the upper cover 4. Figure 6 ; Use self-tapping screws to lock the circuit board assembly 2 and the upper cover 4. At this time, the rebound ribs of the function keys 6 support the circuit board assembly 2 to play a rebound role. Figure 7 As shown, the cut surface of the screwdriver 1 is inserted into the groove of the upper cover 4. After the screwdriver 1 is installed in place, the column of the screwdriver 1 contacts and cooperates with the contact spring; at this time, the screwdriver 1 is connected and conducted with the circuit board assembly 2. Figure 8 As shown, the contact nut 11 is pressed into the through hole of the lower cover 5 to fix it, and then the contact spring is installed into the shaft of the contact nut 11 to make it in close contact, and the upper cover 4 and the lower cover 5 are locked with self-tapping screws. At this time, the contact spring, nut 11 and the circuit board assembly 2 are connected and conductive. Fig. 9 As shown, after placing the battery in the groove of the lower cover 5, push the ribs of the battery cover (conductive) into the limit groove of the lower cover 5, and then use machine screws to lock the battery cover (conductive) with the lower cover 5 and the contact nut 11. The three-view diagram of the smart induction test pen after installation is as follows Fig.10 shown.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent induction test pencil, characterized in that: It comprises a screwdriver (1), a circuit board assembly (2), a display assembly (3), an upper cover (4), a lower cover (5), a function key (6), a lighting lamp (7), a contact nut (11) and a power supply; The upper cover (4) and the lower cover (5) are both fixed to the circuit board assembly (2) by self-tapping screws, and the upper cover (4) and the lower cover (5) are also fixedly connected by self-tapping screws; a groove is provided at the front end of the upper cover, and the screwdriver (1) is inserted into the groove to be fixedly connected to the circuit board assembly (2), and is electrically connected to the circuit board assembly (2) through a contact spring; a display opening is provided on a side of the surface of the upper cover (4) close to the screwdriver (1), and the display assembly (3) is electrically connected to the circuit board assembly (2) and fixed to the circuit board assembly (2). The upper cover (4) has a display opening on its surface away from the screwdriver (1), and a plurality of key openings are provided on the side thereof, wherein the function key (6) is electrically connected to the circuit board and fixed at the key opening; the lower cover (5) has a groove on its surface for placing a power source, and the power source is electrically connected to the circuit board assembly (2) and fixed in the groove; a contact spring is sleeved on the shaft of the contact nut (11), and a through hole is provided on the surface of the lower cover (5) close to the power source, and the contact nut is fixed in the through hole and connected to the circuit board assembly (2); A lighting through hole is also provided on a side of the surface of the upper cover (4) close to the screwdriver (1); the lighting lamp (7) is electrically connected to the circuit board and fixed on the circuit board assembly (2), and passes through the lighting through hole.

2. The intelligent induction test pencil according to claim 1, characterized in that: The circuit board assembly (2) comprises two tact switches (21), a battery electrode (22) and a circuit board, wherein the tact switches (21) and the battery electrode (22) are fixedly mounted on the upper and lower surfaces of the circuit board respectively, the tact switches (21) are connected to the function keys (6), and the battery electrode (22) is connected to a power source.

3. The intelligent induction test pencil according to claim 2, characterized in that: The function button (6) comprises two function buttons, one (61) and one (62), each of which is provided with a spring-back rib. The function button (61) and the function button (62) are connected to a touch switch (21) on a circuit board via the spring-back rib.

4. The intelligent induction test pencil according to claim 1, characterized in that: The display assembly (3) comprises a lens (31), a liquid crystal display (32), a backlight source (33) and a conductive rubber (34); the lens (31), the liquid crystal display (32), the backlight source (33) and the conductive rubber (34) are sequentially placed in the display opening.

5. The intelligent induction test pencil according to claim 1, characterized in that: A positioning column (8) is provided at one end of the contact spring at the screwdriver (1); a boss (9) is provided at one end of the circuit board close to the screwdriver (1); and a positioning hole (10) is provided on the surface of the circuit board close to the boss; the contact spring passes through the boss (9) and is fixedly connected to the circuit board through the positioning column (8) and the positioning hole (10); the screwdriver (1) passes through the contact spring and is fixedly connected to the boss (9).

6. The intelligent induction test pencil according to claim 1, characterized in that: The power source comprises a battery and a battery cover. The battery is installed in a groove on the surface of the lower cover (5), and the battery cover is fixed on the groove by a nut.

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