Current test fixture of display screen
By integrating current test components and buzzer components on the display test fixture, the problem of traditional equipment lacking current test functions is solved, and efficient current detection and alarm functions without the need for an ammeter are achieved, which improves production efficiency.
Patent Information
- Application Number
- CN202420128857.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-01-18
AI Technical Summary
Traditional display testing equipment lacks integrated current testing function and requires an ammeter to be added, which leads to cumbersome testing and occupying production line space, affecting production efficiency.
Design a current test fixture for display screens, integrating current test components and buzzer components, including current test circuits and sensors, which can directly detect current and provide alarm functions, reducing dependence on ammeters.
It realizes that the display current can be detected directly without an ammeter, improves production efficiency, and enhances the reliability and convenience of detection through the beep alarm function.
Smart Images
Figure CN222353985U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display screen detection, in particular to a current testing fixture for a display screen. Background Art
[0002] Display screens are widely used in today's society and can be seen everywhere. Through display screens, information can be expressed more intuitively and vividly. In the industrial and consumer fields, in addition to the products that commonly use display screens, such as monitors, telephones, handheld scanners, cameras, etc., many previously unused devices are now also beginning to use display screens, such as remote controls, ovens, refrigerators, etc. Therefore, display screens have a huge market for use, and the shipment volume is gradually increasing. The market's quality requirements for display screen products are also becoming more and more stringent, which increases the requirements for the inspection capabilities of display screen shipments. Among them, the current of the display screen is one of the necessary test items for shipment inspection.
[0003] At present, the traditional test baseboard does not have an integrated test current function and requires an external ammeter for testing. Some projects need to test several currents, and the production line needs to be equipped with several ammeters to test a project. The test is very cumbersome and takes up production line space. For this reason, a current test fixture for a display screen is designed. An external ammeter is required, which can save the ammeter and improve production efficiency. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a current testing fixture for a display screen.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] A current test fixture for a display screen, characterized in that it comprises: a test fixture, the test fixture comprising a test base plate, on which a current test component and a buzzer component are arranged; a current test component, the current test component comprising a current test circuit integrated on the test fixture and a current sensor arranged on a surface of the fixture; and a buzzer component, the buzzer component comprising a buzzer circuit integrated on the test fixture and a buzzer sounder arranged on the surface of the fixture.
[0007] In one of the embodiments, a switch assembly is disposed on the left side of the top front side of the test fixture, the switch assembly includes four push-type switches, and the four push-type switches are disposed at equal distances in the horizontal direction.
[0008] In one of the embodiments, a control chip is disposed on the left side of the top of the front side of the test base plate, and a plurality of electronic components are disposed on the test base plate.
[0009] In one of the embodiments, the current sensor in the current testing assembly is disposed at the center of the front side of the testing base plate, and the current sensor in the current testing assembly is electrically connected to the testing base plate.
[0010] In one of the embodiments, the buzzer circuit in the buzzer assembly is arranged at a position in the center of the test base plate body close to the bottom, and the buzzer sounder of the buzzer assembly is electrically connected to the test base plate.
[0011] In one of the embodiments, a power connection socket is provided on the left side of the bottom back of the test base plate, and the power supply is electrically connected to the buzzer assembly.
[0012] In one embodiment, the current testing circuit in the current testing component is electrically connected to the control chip, and the buzzer circuit in the buzzer component is electrically connected to the control chip.
[0013] In one embodiment, the test fixture further includes a protective shell, and the protective shell is of waterproof and sealed design.
[0014] In one embodiment, the test base plate is square and is a PCB board, and positioning holes are opened on the board body.
[0015] In one embodiment, the shape and size of the front side of the test base plate match the shape and size of the front side of the protective housing, and the test base plate is located in the protective housing.
[0016] Compared with the prior art, the utility model has at least the following advantages:
[0017] The current testing fixture for a display screen of the utility model can directly detect the current of a product through a current testing component and a buzzer component arranged on a test base plate, and has an alarm function, and sets an upper limit value of the product current. If the upper limit value is exceeded, an audible alarm can be sounded, and there is no need to equip an ammeter or for employees to manually wire the ammeter and set current parameters, thus saving the detection process of the ammeter and improving its production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is a front overall schematic diagram of the current test fixture structure of the display screen of the utility model;
[0020] Figure 2 A schematic diagram of the circuit structure of a current test assembly of a current test fixture structure of a display screen of the present utility model;
[0021] Figure 3 The present invention is a schematic diagram of the circuit structure of a buzzer component of a current test fixture structure for a display screen.
[0022] In the figure: 1. Test fixture; 11. Test base plate; 12. Current test component; 13. Buzzer component; 14. Switch component; 15. Control chip. DETAILED DESCRIPTION
[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.
[0024] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0025] Unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0027] like Figure 1-3As shown, a current test fixture for a display screen includes: a test fixture 1, the test fixture 1 includes a test base plate 11, and a current test component 12 and a buzzer component 13 are arranged on the test base plate 11; the current test component 12 includes a current test circuit integrated on the test fixture 1 and a current sensor arranged on the surface of the fixture. The buzzer component 13 includes a buzzer circuit integrated on the test fixture 1 and a buzzer sounder arranged on the surface of the fixture. It should be noted that the circuit diagram of the current test circuit is attached to the figure of the specification. Figure 2 The circuit diagram of the buzzer circuit is shown in the figure in the instruction manual. Figure 3 As shown in the circuit diagram, the test fixture 1 can perform current testing on the display screen and sound a buzzer alarm according to the detection structure.
[0028] like Figure 1 As shown, in one embodiment, a switch assembly 14 is provided on the left side of the top front of the test fixture 1, and the switch assembly 14 includes four push switches, and the four push switches are arranged at equal distances along the horizontal direction. It should be noted that the staff can operate the test fixture 1 by operating the four push switches.
[0029] like Figure 1 As shown, in one embodiment, a control chip 15 is disposed on the left side of the top of the front of the test base plate 11, and a number of electronic components are disposed on the test base plate 11. It should be noted that a heat dissipation copper sheet is disposed on the test base plate 11 for quickly dissipating heat from the electronic components on the test base plate 11.
[0030] like Figure 1 As shown, in one embodiment, the current sensor in the current test assembly 12 is arranged at the center of the front side of the test base plate 11, and the current sensor in the current test assembly 12 is electrically connected to the test base plate 11. It should be noted that the current sensor is divided into two positive and negative electrode detection heads. When testing, the positive and negative electrode detection heads are clamped on the current interface of the display screen, so that the current of the display screen can be detected.
[0031] like Figure 1 As shown, in one embodiment, the buzzer circuit in the buzzer assembly 13 is arranged at a position near the bottom of the central part of the test base plate 11, and the buzzer sounder of the buzzer assembly 13 is electrically connected to the test base plate 11. The current test circuit in the current test assembly 12 is electrically connected to the control chip 15, and the buzzer circuit in the buzzer assembly 13 is electrically connected to the control chip 15. It should be noted that the buzzer sounder can be operated to buzz according to the program set in the test base plate 11.
[0032] like Figure 1As shown, in one embodiment, a power connection socket is provided on the left side of the bottom back of the test base plate 11, and the power supply is electrically connected to the buzzer assembly 13. It should be noted that this design can provide power to the test base plate 11.
[0033] like Figure 1 As shown, in one embodiment, the test fixture 1 further includes a protective shell, which is a waterproof and sealed design. It should be noted that the protective shell is made of a black plastic shell.
[0034] like Figure 1 As shown, in one embodiment, the test base plate 11 is square and is a PCB board, and a positioning hole is opened on the board body. The shape and size of the front of the test base plate 11 match the shape and size of the front of the protective shell, and the test base plate 11 is located in the protective shell. It should be noted that this design can facilitate the test personnel to fix the test base plate 11 in the protective shell to prevent it from shaking at will and causing damage.
[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A current test fixture for a display screen, characterized in that: include: A test fixture (1), the test fixture (1) comprising a test base plate (11), the test base plate (11) being provided with a current test component (12) and a buzzer component (13); A current testing component (12), the current testing component (12) comprising a current testing circuit integrated on the test fixture (1) and a current sensor arranged on a surface of the fixture; A buzzer assembly (13), comprising a buzzer circuit integrated on the test fixture (1) and a buzzer sounder arranged on the surface of the fixture.
2. The current test fixture for a display screen according to claim 1, characterized in that: A switch assembly (14) is arranged on the left side of the top of the front side of the test fixture (1), and the switch assembly (14) comprises four push-type switches, and the four push-type switches are arranged at equal distances in the horizontal direction.
3. The current test fixture for a display screen according to claim 1, characterized in that: A control chip (15) is arranged on the left side of the top of the front side of the test base plate (11), and a plurality of electronic components are arranged on the test base plate (11).
4. The current test fixture for a display screen according to claim 1, characterized in that: The current sensor in the current testing component (12) is arranged at the center of the front side of the testing base plate (11), and the current sensor in the current testing component (12) is electrically connected to the testing base plate (11).
5. The current test fixture for a display screen according to claim 1, characterized in that: The buzzer circuit in the buzzer assembly (13) is arranged at a position in the center of the test base plate (11) close to the bottom, and the buzzer sounder of the buzzer assembly (13) is electrically connected to the test base plate (11).
6. The current test fixture for a display screen according to claim 1, characterized in that: A power connection socket is provided on the left side of the bottom back of the test base plate (11), and the power supply is electrically connected to the buzzer assembly (13).
7. The current test fixture for a display screen according to claim 3, characterized in that: The current test circuit in the current test component (12) is electrically connected to the control chip (15), and the buzzer circuit in the buzzer component (13) is electrically connected to the control chip (15).
8. The current test fixture for a display screen according to claim 1, characterized in that: The test fixture (1) also includes a protective shell, which is of waterproof and sealed design.
9. The current test fixture for a display screen according to claim 1, characterized in that: The test base plate (11) is square and is a PCB board, and a positioning hole is provided on the board body.
10. The current test fixture for a display screen according to claim 1, characterized in that: The shape and size of the front side of the test base plate (11) match the shape and size of the front side of the protective shell, and the test base plate (11) is located in the protective shell.