An electronic touch screen capacitance parameter testing device

Abstract

This utility model discloses an electronic touchscreen capacitance parameter testing device, relating to the field of capacitance parameter testing. It includes: a frame; a lifting assembly fixed to a support plate of the frame, the lifting assembly comprising a gantry unit, a drive mechanism, a support component, and a connecting frame, the drive mechanism being fixed to the gantry unit and driving the support component; a pressure contact assembly slidably connected to the support component, the pressure contact assembly comprising a measuring component, a connecting plate, a counterweight, and a connecting block; and a positioning assembly located below the pressure contact assembly, with its upper part used to fix the product to be tested. When the measuring component of the pressure contact assembly presses against the product to be tested, the pressure contact assembly remains stationary and separates from the support component in the direction of movement, which refers to the direction in which the support component approaches the product to be tested. This utility model can control the contact pressure between the instrument and the product to be tested through simple adjustment, ensuring the consistency of parameters during repeated measurements.

Description

Technical Field

[0001] This utility model relates to the field of capacitance testing, and in particular to a device for testing the capacitance parameters of an electronic touch screen. Background Technology

[0002] Electronic touchscreens, as crucial components for human-computer interaction, are widely used in various electronic devices. Capacitive touchscreens, due to their high sensitivity, durability, and superior user experience, dominate the market. However, in the manufacturing process of capacitive touchscreens, precise testing of capacitance parameters is essential to ensure their performance and quality.

[0003] Currently, capacitance parameter detection is mostly performed directly by mechanical devices, and these existing technologies have the following problems:

[0004] (1) Existing driving methods often use cylinders or motors to control displacement to achieve contact, but do not control the detection pressure. This makes it difficult to simulate the pressure of a hand on the screen, resulting in a certain deviation between the detection results and the actual usage situation.

[0005] (2) The instrument needs to be programmed in a complex way before testing. When changing batches or standards, it needs to be re-adjusted, which requires high technical skills from the operators. This not only increases the difficulty of operation but also reduces the testing efficiency. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model aims to provide a device for measuring capacitance parameters that is simple to operate and intuitive. At the same time, it can control the contact pressure between the instrument and the product under test during the test, and ensure the consistency of each parameter during repeated measurements. This solves the problems of difficult and complex operation in the prior art, and meets the market demand for high precision and easy operation of touch screen testing equipment.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] The electronic touch screen capacitance parameter testing device provided by this utility model belongs to the field of touch screen capacitance parameter testing, and includes:

[0009] The frame has a load-bearing plate;

[0010] A lifting assembly, mounted on the support plate, includes:

[0011] A portal frame unit consisting of a first guide post and a plate-like component fixed to the top of the first guide post, wherein the lower end of the first guide post is mounted on the bearing plate;

[0012] The drive mechanism is mounted on the plate-shaped member;

[0013] The support component is slidably connected to the first guide post, and a connecting frame is fixed to the upper end of the support component. The upper end of the connecting frame is connected to the driving mechanism in a transmission manner.

[0014] A pressure-touch assembly, mounted on the carrier, includes at least one measuring element for contact measurement with the touchscreen under test;

[0015] A positioning component is used to fix and position the touch screen under test, and is located below the pressure touch component.

[0016] When the drive mechanism is working, the connecting frame can drive the carrier and the pressure contact assembly to move closer to or away from the positioning assembly. When the pressure contact assembly approaches and contacts the touch screen under test, the measurement operation of the capacitance parameters of the electronic touch screen is completed.

[0017] Furthermore, the drive mechanism includes a motor, a lead screw directly or indirectly connected to the motor, and a lead screw nut connected to the lead screw in a transmission relationship.

[0018] in,

[0019] The motor is mounted on the plate-shaped component, and the lead screw nut is connected to the connecting frame.

[0020] Furthermore, the portal frame unit also includes a sliding bearing;

[0021] The support member is slidably connected to the first guide post by means of the sliding bearing.

[0022] Furthermore, the pressure contact assembly further includes:

[0023] A connecting plate, wherein the measuring element is mounted on the lower end of the connecting plate; and

[0024] A counterweight is disposed at the upper end of the connecting plate;

[0025] The measuring component has a flexible measuring part.

[0026] Furthermore, the counterweight consists of multiple detachable and assembleable weights.

[0027] Furthermore, the lower surface of the flexible measuring part has an arc-shaped protrusion structure, and a conductive cloth capable of measuring capacitance parameters is attached to its surface.

[0028] Furthermore, the support member has a clearance through hole at its center;

[0029] The connecting plate is located below the clearance through hole, and the counterweight is indirectly connected to the connecting plate through a connecting block, which passes through the clearance through hole.

[0030] Furthermore, sliding sleeves are provided at both ends of the connecting block;

[0031] The support member is provided with a second guide post;

[0032] The second guide post is slidably connected to the sliding sleeve.

[0033] Furthermore, the connecting plate is provided with a third guide post for defining the positions of the pressure contact assembly and the positioning assembly;

[0034] The positioning component is provided with a limiting part that can be inserted into the third guide post.

[0035] Furthermore, it also includes electrical components for control and recording.

[0036] The embodiments of this utility model have at least the following advantages or beneficial effects:

[0037] (1) When simulating pressing the electronic touch screen with a hand, the pressing force can be kept consistent each time. This ensures consistency during repeated tests and stability of the pressure parameters.

[0038] (2) When adjusting the pressing force, only the number or specifications of the counterweights in this utility model need to be adjusted, without adjusting the program. The operation is simple and intuitive, and requires a low level of technical skill from the operator. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 A 3D view of an electronic touchscreen capacitance parameter testing device;

[0041] Figure 2 A 3D view of the lifting assembly;

[0042] Figure 3 This is a 3D view of the pressure-sensitive component;

[0043] Figure 4 for Figure 3 Front view of the disassembled medium-pressure contact component;

[0044] Figure 5 A 3D view of the positioning components;

[0045] Figure label:

[0046] 1-Frame; 11-Bearing plate;

[0047] 2-Lifting assembly; 21-Gantry unit; 211-First guide post; 212-Plate-shaped component; 213-Sliding bearing; 22-Drive mechanism; 221-Motor; 222-Lead screw; 223-Lead screw nut; 23-Bearing component; 231-Leaving through hole; 232-Second guide post; 24-Connecting frame;

[0048] 3-Pressure contact assembly; 31-Measuring component; 311-Flexible measuring part; 32-Connecting plate; 321-Third guide post; 33-Counterweight; 34-Connecting block; 341-Sliding sleeve;

[0049] 4-Positioning component; 41-Limiting part;

[0050] 5-Electrical components; Detailed Implementation

[0051] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0052] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship of the various parts or elements of this utility model and do not specifically refer to any part or element in this utility model. They should not be construed as limiting this utility model.

[0055] In this utility model, terms such as "fixed", "connected", and "linked" should be interpreted broadly, indicating that it can be a fixed connection, an integral connection, or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For relevant scientific researchers or technicians in this field, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0056] This invention provides a device for testing the capacitance parameters of an electronic touchscreen.

[0057] Figure 1 This is a 3D view of a device for testing the capacitance parameters of an electronic touchscreen. As can be seen from the diagram, it mainly consists of four parts:

[0058] The frame 1 provides working space for other components in this embodiment. The frame 1 includes a support plate 11, which divides the frame 1 into upper and lower layers. The main working components of this embodiment are located in the upper layer.

[0059] Lifting component 2, which can drive other components to move up and down to achieve mechanized operation;

[0060] The pressure contact component 3 is attached to the lifting component 2 and is capable of measuring the product to be tested;

[0061] Positioning component 4 is fixed below pressure contact component 3; positioning component 4 provides space for placing the product under test, which allows the product under test to be within the range of motion of pressure contact component 3.

[0062] In addition, this embodiment also includes an electrical component 5 for recording measurement data.

[0063] Detailed analysis, Figure 2 This is a perspective view of the lifting assembly 2. As can be seen from the figure, the lifting assembly 2 mainly includes:

[0064] The portal frame unit 21 for providing reaction force includes two vertically extending first guide posts 211 for fixing to the support plate 11 of the frame 1, which can play a guiding and limiting role, and a plate-shaped member 212 fixed to the end of the first guide posts 211. The plate-shaped member 212 provides an installation structure and installation space for other components.

[0065] The drive mechanism 22 for providing power consists of a motor 221 fixed on a plate-shaped member 212, a lead screw 222 extending from the motor 221 toward the connecting frame 24, and a lead screw nut 223 fixed on the connecting frame 24 and threadedly connected to the lead screw 222.

[0066] The support member 23 is used for direct up and down movement. The connecting member 24 above the support member 23 is fixed with a screw nut 223. In this way, when the motor 221 of the drive mechanism 22 rotates, the connecting frame 24 can move up and down.

[0067] In addition, the gantry unit 21 also includes a sliding bearing 213 sleeved on the first guide post 211, and the support member 23 of the lifting assembly 2 is slidably connected to the gantry unit 21 through the sliding bearing 213. In this way, it can be ensured that the support member 23 only moves up and down and does not rotate; in addition, the support member 23 also includes a second guide post 232 that plays a guiding role.

[0068] Figure 3 , Figure 4 The figures show a perspective view and a disassembled front view of the pressure-sensitive component 3. As can be seen from the figures, the pressure-sensitive component 3 mainly includes:

[0069] A connecting block 34 is used to connect other parts. The connecting block 34 passes through a clearance through hole 231 provided on the support member 23 of the lifting assembly 2. The two are slidably connected but not fixedly connected. A connecting plate 32 is provided at the lower end of the connecting block 34, and the connecting plate 32 is located below the support member 23.

[0070] A measuring element 31 is provided below the connecting plate 32, which can measure the product to be tested. Below the measuring element 31 is a flexible measuring part 311 with an arc-shaped protrusion, the surface of which is attached with conductive cloth, which can simulate human body pressure when in contact with the product to be tested.

[0071] In addition, the connecting block 34 is also provided with a sliding sleeve 341 that engages with the second guide post 232 of the carrier 23 and serves as a limiting and guiding function. In this way, the connecting block 34 can move up and down relative to the carrier 23 to a certain extent, thereby providing the pressure contact assembly 3 with the condition of temporarily separating from the carrier 23 in this direction of movement;

[0072] The counterweight 33 used to change the weight of the pressure contact assembly 3 consists of multiple detachable weights. The overall weight of the pressure contact assembly 3 can be changed by changing the specifications of the weights.

[0073] Figure 5 This is a perspective view of the positioning component. As can be seen, the positioning component 4 provides space above it for fixing the product under test. This space allows the fixed product to be within the range of motion of the pressure contact component 3, thereby achieving the purpose of measuring product parameters. Furthermore, the positioning component 4 is provided with a limiting part 41 that matches the shape and size of the third guide post of the pressure contact component 3, for further limiting the movement of the pressure contact component 3. This further ensures the direction and position of movement of the pressure contact component 3, thereby improving the movement accuracy of the pressure contact component 3 during repeated measurements.

[0074] Furthermore, under the action of gravity, when the upper part of the connecting block 34 of the pressure contact component 3 overlaps on the support member 23 of the lifting component 2, and the measuring member 31 below the pressure contact component 3 does not contact the product to be tested, the pressure contact component 3 can move up and down with the support member 23; when the measuring member 31 below the pressure contact component 3 contacts the product to be tested, the product to be tested provides the pressure contact component 3 with a supporting force against its gravity, and as the support member 23 continues to move downward, the pressure contact component 3 separates from the support member 23 and enters a stationary state, thus realizing the function of pressing the product to be tested.

[0075] Furthermore, by changing the weight specifications of the counterweight 33 in the pressure contact assembly 3, the pressure applied to the product under test can be altered. The adjusted pressure can be observed visually without relying on complex real-time pressure measuring instruments. This significantly simplifies the product testing process and reduces operational difficulty.

[0076] When using the electronic touch screen capacitance parameter testing equipment of this utility model, the following usage methods are preferred:

[0077] Step 1: Determine the shape of the lower surface of the flexible measuring part 311 of the measuring part 31 according to the test requirements, and replace the designated measuring part 31;

[0078] Step 2: Determine the magnitude of the simulated pressing force according to the experimental requirements, calculate the specifications and quantity of the required counterweights, and assemble them to form counterweight component 33;

[0079] Step 3: Start motor 221, which drives lead screw 222 to rotate, thereby lifting the support component 23 upward. In this way, the pressure contact assembly 3 will also move upward synchronously.

[0080] Step 4: Fix the product to be tested onto positioning component 4;

[0081] Step 5: Start motor 221, driving lead screw 222 to rotate in the opposite direction to that in Step 3, thereby driving the carrier 23 downward. This causes the pressure contact assembly 3 to move downward synchronously. After the measuring element 31 contacts the product to be measured, it continues to drive the carrier 23 downward until the pressure contact assembly 3 separates from the carrier 23 in that direction of movement.

[0082] Step Six: Record the experimental data; the experiment is now complete.

[0083] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for testing the capacitance parameters of an electronic touchscreen, characterized in that, include: The frame (1) has a support plate (11); The lifting assembly (2) is installed on the support plate (11); It includes: A portal frame unit (21) is formed by a first guide post (211) and a plate-like member (212) fixed to the top of the first guide post (211), wherein the lower end of the first guide post (211) is mounted on the bearing plate (11); A drive mechanism (22) is mounted on the plate-shaped member (212); The carrier (23) is slidably connected to the first guide post (211), and the upper end of the carrier (23) is fixed with a connecting frame (24), and the upper end of the connecting frame (24) is connected to the driving mechanism (22) in a transmission manner; A pressure contact assembly (3) is mounted on the carrier (23), which includes at least one measuring element (31) for contact measurement with the touch screen under test. The positioning component (4) is used to fix and position the touch screen under test, and is located below the pressure touch component (3); When the drive mechanism (22) is working, the connecting frame (24) can drive the carrier (23) and the pressure contact assembly (3) to move closer to or away from the positioning assembly (4). When the pressure contact assembly (3) moves closer to and contacts the touch screen under test, the measurement operation of the capacitance parameters of the electronic touch screen is completed.

2. The electronic touchscreen capacitance parameter testing device according to claim 1, characterized in that: The drive mechanism (22) includes a motor (221), a lead screw (222) directly or indirectly connected to the motor, and a lead screw nut (223) connected to the lead screw (222). in, The motor (221) is mounted on the plate (212), and the lead screw nut (223) is connected to the connecting frame (24).

3. The electronic touchscreen capacitance parameter testing device according to claim 1, characterized in that: The portal frame unit (21) also includes a sliding bearing (213). The carrier (23) is slidably connected to the first guide post (211) by means of the sliding bearing (213).

4. The electronic touchscreen capacitance parameter testing device according to claim 1, characterized in that, The pressure contact assembly (3) further includes: A connecting plate (32), wherein the measuring element (31) is mounted on the lower end of the connecting plate (32); and A counterweight (33) is disposed at the upper end of the connecting plate (32); The measuring component (31) has a flexible measuring part (311).

5. The electronic touchscreen capacitance parameter testing device according to claim 4, characterized in that, The counterweight (33) consists of multiple detachable and assembleable weights.

6. The electronic touchscreen capacitance parameter testing device according to claim 4, characterized in that, The lower surface of the flexible measuring part (311) has an arc-shaped protrusion structure, and a conductive cloth that can measure capacitance parameters is attached to its surface.

7. The electronic touch screen capacitance parameter testing device according to claim 4, characterized in that: The bearing member (23) has a clearance through hole (231) at the middle. The connecting plate (32) is located below the clearance through hole (231), and the counterweight (33) is indirectly connected to the connecting plate (32) through the connecting block (34), which passes through the clearance through hole (231).

8. The electronic touch screen capacitance parameter testing device according to claim 7, characterized in that: The connecting block (34) is provided with sliding sleeves (341) at both ends. The support member (23) is provided with a second guide post (232); The second guide post (232) is slidably connected to the sliding sleeve (341).

9. The electronic touchscreen capacitance parameter testing device according to claim 4, characterized in that: The connecting plate (32) is provided with a third guide post (321) for defining the position of the pressure contact assembly (3) and the positioning assembly (4). The positioning component (4) is provided with a limiting part (41) that is inserted into the third guide post (321).

10. The electronic touchscreen capacitance parameter testing device according to claim 1, characterized in that, It also includes electrical components for control and recording (5).

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