CN216082939U

CN216082939U - A test board that can improve the accuracy of mutual capacitive touch keys

Info

Publication number: CN216082939U
Application number: CN202121638034.5U
Authority: CN
Inventors: 谭玲芝
Original assignee: Dongguan Singway Electronic Technology Co ltd
Current assignee: Dongguan Singway Electronic Technology Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-03-18
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses a test board capable of improving the accuracy of mutual capacitance touch keys, comprising a casing and a control board. A cover is detachably mounted on the top of the casing, and touch keys are welded on the surface of the control board. Interface, buzzer, display screen, LED indicator light, serial port interface, USB power supply interface and DC power supply interface, the touch button interface is connected with the serial port interface, the display screen, buzzer, LED indicator light and USB power supply interface It is connected with the DC power interface, and the display screen is connected with the buzzer and the LED indicator. Automatic identification through computer software, based on the model threshold generated when the product triggers the touch button, to judge whether the product function is normal, intelligent identification, high accuracy, improve the detection efficiency of the touch button, and can timely find out the defective products in the product , thereby greatly improving the yield of the product.

Description

Test board capable of improving accuracy of mutual capacitance touch keys

Technical Field

The utility model relates to the technical field of electronic information, in particular to a test board capable of improving the accuracy of mutual capacitance touch keys.

Background

The capacitive sensing touch key can penetrate through an insulating material shell by more than 8mm (glass, plastic and the like), accurately detects effective touch of a finger, ensures the sensitivity, stability, reliability and the like of a product, cannot be changed due to change of environmental conditions or long-term use, has waterproof and strong anti-interference capacity, and is ultra-strong in protection and ultra-strong in adaptive temperature range;

the existing touch key generally adopts the method of identifying Sensor capacitance value data during detection, and judges whether the product function is normal or not by setting a capacitance value range after grabbing certain data and then averaging, but cannot grab a signal threshold value generated by touch action, and has difference with the use of a terminal customer and a judgment result.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a test board capable of improving the accuracy of mutual capacitance touch keys, which automatically tests the capacitance value of the touch keys through software and displays the capacitance value through a display screen and an LED indicator lamp so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a test board capable of improving the accuracy of mutually-compatible touch keys comprises a shell and a control board, wherein a shell cover is detachably mounted at the top of the shell, a touch key interface, a buzzer, a display screen, an LED indicator lamp, a serial interface, a USB power interface and a DC power interface are welded on the surface of the control board, the touch key interface is connected with the serial interface, the display screen, the buzzer and the LED indicator lamp are connected with the USB power interface and the DC power interface, and the display screen is connected with the buzzer and the LED indicator lamp;

the bottom of the inner cavity of the shell is bonded with a mounting column, the mounting column is of a hollow structure, the inner wall of the mounting column is of an internal thread structure, and the control panel is fixedly mounted at the top of the mounting column through screws.

Preferably, the side wall of the shell is provided with a touch key slot, a USB power supply slot and a DC power supply slot, and the touch key slot, the USB power supply slot and the DC power supply slot correspond to the touch key interface, the USB power supply interface and the DC power supply interface one by one.

Preferably, a PVC transparent plate is embedded in the shell cover, a serial port slot is formed in the top of the shell cover, and the serial port slot corresponds to the serial port interface.

Preferably, the surface of the shell is provided with a clamping groove, the bottom of the shell cover is integrally formed with a clamping edge matched with the clamping groove, and the clamping edge is clamped inside the clamping groove.

Preferably, a limiting groove is formed in the shell, the limiting groove is communicated with the inside of the clamping groove, a limiting flange is integrally formed at the bottom of the clamping edge, and the limiting flange is clamped in the limiting groove.

Preferably, the surface of the shell is provided with a heat dissipation groove, the bottom of the inner cavity of the shell is integrally formed with a pressing plate, and the pressing plate is attached to the bottom of the control panel.

Compared with the prior art, the utility model has the beneficial effects that:

1. the method has the advantages that the automatic identification is carried out through computer software, whether the product functions are normal or not is judged according to the model threshold value generated when the product triggers the touch key, the intelligent identification is realized, the accuracy is high, the detection efficiency of the touch key is improved, defective products in the product can be found out in time, and the yield of the product is greatly improved;

2. the control panel is protected through the casing, the detachable cap of cooperation can be put the control panel and use inside the casing, can play better dustproof effect, and serial ports slot, touch button slot, the setting of USB power socket and DC power socket can be protected the interface on the control panel, USB power interface and DC power interface can provide USB two kinds of modes of charging and DC power and supply power simultaneously, have improved the holistic general nature of device.

Drawings

FIG. 1 is a schematic structural diagram of a housing and a housing cover according to the present invention;

FIG. 2 is a schematic illustration of an explosive structure according to the present invention;

FIG. 3 is an enlarged view of region A of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the internal structure of the housing of the present invention;

FIG. 5 is a flow chart of the present invention.

In the figure: 1. a housing; 2. a touch key slot; 3. a shell cover; 4. a PVC transparent plate; 5. a serial port slot; 6. a USB power socket; 7. a DC power supply slot; 8. a heat sink; 9. a touch key interface; 10. a control panel; 11. a buzzer; 12. a display screen; 13. an LED indicator light; 14. a serial port interface; 15. a USB power interface; 16. a DC power interface; 17. mounting a column; 18. pressing a plate; 19. edge clamping; 20. limiting and blocking edges; 21. a card slot; 22. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: a test board capable of improving the accuracy of mutual-capacitance touch keys comprises a shell 1 and a control board 10;

the top of the shell 1 is detachably provided with a shell cover 3, the surface of a control panel 10 is welded with a touch key interface 9, a buzzer 11, a display screen 12, an LED indicator light 13, a serial interface 14, a USB power interface 15 and a DC power interface 16, the touch key interface 9 is connected with the serial interface 14, the display screen 12, the buzzer 11 and the LED indicator light 13 are connected with the USB power interface 15 and the DC power interface 16, and the display screen 12 is connected with the buzzer 11 and the LED indicator light 13;

the bottom of the inner cavity of the shell 1 is bonded with the mounting column 17, the mounting column 17 is of a hollow structure, the inner wall of the mounting column 17 is of an internal thread structure, the control panel 10 is fixedly mounted at the top of the mounting column 17 through screws, the USB power interface 15 and the DC power interface 16 can supply power in two modes, the universality of the whole device is improved, key values are tested in a capacitance value range of the touch keys one by one and are automatically identified through software, the accuracy is high, the detection speed is high, and the yield of products is greatly improved;

the side wall of the shell 1 is provided with a touch key slot 2, a USB power slot 6 and a DC power slot 7, the touch key slot 2, the USB power slot 6 and the DC power slot 7 are respectively in one-to-one correspondence with the positions of a touch key interface 9, a USB power interface 15 and a DC power interface 16, a PVC transparent plate 4 is embedded in the shell cover 3, a serial port slot 5 is arranged at the top of the shell cover 3, the serial port slot 5 is in correspondence with the position of a serial port interface 14, the touch key slot 2, the USB power slot 6, the DC power slot 7 and the serial port slot 5 are convenient for connecting the control panel 10 with a power supply and a computer, and the connection can be carried out in the shell 1, so that the work of the control panel 10 can be carried out in the shell 1, and the control panel 10 has a dustproof effect;

the clamping groove 21 is formed in the surface of the shell 1, the clamping edge 19 matched with the clamping groove 21 is integrally formed at the bottom of the shell cover 3, the clamping edge 19 is clamped in the clamping groove 21, the clamping groove 21 and the clamping edge 19 are matched to be capable of being matched with the limiting flange 20 and the limiting groove 22 to install and detach the shell cover 3, screws are not needed to be used for fixing, and the installing and detaching speed of the shell cover 3 is improved;

a limiting groove 22 is formed in the shell 1, the limiting groove 22 is communicated with the inside of the clamping groove 21, a limiting rib 20 is integrally formed at the bottom of the clamping rib 19, the limiting rib 20 is clamped in the limiting groove 22, and the shell cover 3 can be fixed by matching the limiting rib 20 and the limiting groove 22, so that the shell cover 3 can be assembled and disassembled in a push-pull mode, and the shell cover is simple in structure and convenient to operate;

radiating groove 8 has been seted up on the surface of casing 1, and the bottom integrated into one piece of casing 1 inner chamber has clamp plate 18, and clamp plate 18 laminates in the bottom of control panel 10, and radiating groove 8 can dispel the heat to control panel 10 under the normal work, and clamp plate 18 can play the supporting role to control panel 10.

When the TOUCH key is used, the flat cable of the TOUCH key is connected with the TOUCH key interface 9, the serial port interface 14 and the USB power interface 15 are connected with a computer, then a serial port tool is turned on at the PC end, the baud rate is set, the display screen 12 can display a 'TOUCH TEST' interface firstly, if the capacitance value of the TOUCH key is not within the designed capacitance value range of the TOUCH key, the red light of the LED indicator lamp 13 is normally on, the display screen 12 can display the corresponding key value which cannot PASS through the capacitance value range, if the capacitance value passes through the set capacitance value range, the green light of the LED indicator lamp 13 is normally on, the display screen displays an 'ALL PASS' interface, when a tester presses one TOUCH key, the display screen 12 can display the corresponding key value, when ALL the TOUCH keys are pressed and have normal functions, the display screen 12 can display an 'ALL FINSH' interface, and the buzzer 11 can also make a prompt by dropping sound.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A test board capable of improving the accuracy of mutual capacitive touch keys, comprising a housing (1) and a control board (10), characterized in that: a top of the housing (1) is detachably mounted with a housing cover ( 3), the surface of the control board (10) is welded with a touch button interface (9), a buzzer (11), a display screen (12), an LED indicator (13), a serial port interface (14), and a USB power interface (15) and a DC power interface (16), the touch key interface (9) is connected to the serial port (14), the display screen (12), the buzzer (11), the LED indicator (13) are connected to the USB The power interface (15) is connected with the DC power interface (16), and the display screen (12) is connected with the buzzer (11) and the LED indicator (13);

A mounting post (17) is bonded to the bottom of the inner cavity of the housing (1), the mounting post (17) is set as a hollow structure and the inner wall of the mounting post (17) is set as an internal thread structure, the control panel (17) 10) Fix it to the top of the mounting post (17) with screws.

2. A test board capable of improving the accuracy of mutual capacitive touch keys according to claim 1, wherein the side wall of the housing (1) is provided with a touch key slot (2), a USB power plug a slot (6) and a DC power supply slot (7), the touch key slot (2), the USB power supply slot (6) and the DC power supply slot (7) are respectively connected with the touch key interface (9) and the USB power supply interface (15) corresponds to the position of the DC power interface (16).

3. A test board capable of improving the accuracy of mutual capacitive touch keys according to claim 1, wherein the shell cover (3) is embedded with a PVC transparent board (4), and the shell cover The top of (3) is provided with a serial port slot (5), and the serial port slot (5) corresponds to the position of the serial port interface (14).

4. A test board capable of improving the accuracy of mutual capacitive touch keys according to claim 1, characterized in that: the surface of the casing (1) is provided with a card slot (21), the casing cover (3) The bottom of the ) is integrally formed with a card edge (19) matching the card slot (21), and the card edge (19) is engaged with the inside of the card slot (21).

5. A test board capable of improving the accuracy of mutual capacitive touch keys according to claim 4, wherein a limit slot (22) is provided inside the casing (1), and the limit slot ( 22) Connected to the interior of the clamping slot (21), the bottom of the clamping edge (19) is integrally formed with a limiting rib (20), and the limiting rib (20) is engaged with the end of the limiting groove (22). internal.

6. A test board capable of improving the accuracy of mutual capacitive touch keys according to claim 1, wherein a heat dissipation groove (8) is provided on the surface of the casing (1), and the casing (1) ) The bottom of the inner cavity is integrally formed with a pressing plate (18), and the pressing plate (18) is attached to the bottom of the control board (10).