Anti-hot-plug clamp for testing liquid crystal panel

Abstract

The utility model provides a liquid crystal panel test anti-hot-plugging clamp, which comprises an upper flip cover and a lower substrate hinged with the upper flip cover, the upper flip cover is vertically provided with a driving lever for triggering a microswitch driving sheet, the lower substrate comprises a body part and a fixing part formed by the inward sinking of the body part, and the fixing part is provided with a clamping groove. A notch for avoiding the deflector rod is formed in the position, located on one side of the hinge, of the body part, the upper turning cover is provided with an observation window matched with the fixing part in length and width, a light-transmitting groove is formed in the middle of the fixing part, a lock catch groove is formed in the position, close to the edge of the fixing part, of the lower base plate in a sunken mode, and a positioning lock catch is arranged in the lock catch groove in a sliding mode. According to the anti-hot-plug clamp for testing the liquid crystal display panel, the upper cover plate and the lower substrate are buckled, and the poking rod is used for extruding and contacting the trigger microswitch poking piece to realize power-on and power-off of a testing machine, so that the anti-hot-plug function is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal screen testing, in particular to a liquid crystal panel testing anti-hot plug-in fixture. Background Art

[0002] With the development of electronic technology, liquid crystal display screens have become the mainstream of the market. In the production of LCD panel modules to finished products, lighting test is also a relatively important link in the production process; lighting test mainly puts the LCD panel into the test slot of the test machine, presses the switch, lights up the product, switches the screen, turns off the power, and finds out defective products.

[0003] In the prior art, LCD panel testers are all equipped with a power switch on one side of the test slot. Normal operation is to turn off the power first, put the test product into the test slot, press the switch to power on the test, and after the test is completed, press the switch to turn off the power and remove the test product. However, operators usually hot-swap the product while it is powered on, that is, the lighting tester has not been powered off, and the product is plugged in and out in the powered-on state, causing problems such as burnt out of the internal circuit of the product, no display, abnormal display, etc. Finally, the product is damaged due to hot-swap and needs to be reworked, resulting in low efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a liquid crystal panel test anti-hot plug fixture, aiming to solve the technical problem in the prior art that the detection machine cannot avoid the hot plug operation of the product.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a liquid crystal panel test anti-hot plug fixture, including an upper flip cover and a lower base plate hingedly connected to the upper flip cover, the upper flip cover is vertically provided with a lever, the lower base plate includes a main body part and a fixed part formed by the main body part being recessed inward, the main body part is located on one side of the hinge and is provided with a notch for avoiding the lever, a micro switch paddle is rotatably provided in the notch, the upper flip cover is provided with an observation window matching the fixed part, and a light-transmitting groove is provided in the middle of the fixed part.

[0006] Compared with the prior art, the beneficial effects of the utility model are: an upper cover is hinged on the lower substrate, the product is placed in a closed environment for testing by buckling the upper cover and the lower substrate, and a lever is vertically arranged on the upper cover, and the power-on test is realized by disengaging the lever from the squeezing contact with the microswitch paddle. After the test is completed, if the product is to be taken out, the upper cover and the lower substrate must be in an open state, at which time the lever and the microswitch paddle are in a squeezing contact state, the test machine is powered off, and the power is turned off and unplugged. Through the buckling operation of the upper cover and the lower substrate, the utility model realizes the anti-hot plug function, thereby reducing the problems of internal circuit burnout of the product, no display, abnormal display, etc. due to hot plugging during testing, reducing the probability of rework and improving work efficiency.

[0007] According to one aspect of the above technical solution, the lower substrate is recessed with a locking groove near the edge of the fixing portion, a positioning lock is slidably provided in the locking groove, and the locking groove is communicated with the fixing portion.

[0008] According to one aspect of the above technical solution, the upper flip cover is recessed on a side away from the hinge to form a hook groove.

[0009] According to one aspect of the above technical solution, the lower substrate is provided with a buckle groove, and the buckle groove is located between the fixing portion and the main body portion.

[0010] According to one aspect of the above technical solution, a limit block is provided between the hinge and the rotating shaft.

[0011] According to one aspect of the above technical solution, the micro switch paddle is arranged in an S shape, and one end of the micro switch is located between the notch and the paddle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the opening structure of the anti-hot-plug fixture for testing a liquid crystal panel in one embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the buckling structure of the anti-hot-plug fixture for testing a liquid crystal panel in one embodiment of the utility model;

[0014] Figure 3 This is a schematic diagram of a hinge structure in one embodiment of the utility model;

[0015] Description of main component symbols:

[0016] 1-upper cover, 11-lever, 12-observation window, 13-hook slot;

[0017] 2-lower substrate, 21-fixing part, 22-light-transmitting groove, 23-locking groove, 24-positioning lock, 25-locking groove, 26-notch;

[0018] 3-hinge, 31-limiting block;

[0019] 4-Micro switch paddle;

[0020] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. 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 thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] 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.

[0024] See also Figure 1 to Figure 2 In one embodiment of the utility model, a liquid crystal panel test anti-hot plug fixture includes an upper flip cover 1 and a lower base plate 2 connected to the upper flip cover 1 by a hinge 3. The upper flip cover 1 is vertically provided with a lever 11. The lower base plate 2 includes a main body and a fixed part 21 formed by the main body being recessed inward. The main body is located on one side of the hinge 3 and is provided with a notch 26 for avoiding the lever 11. A micro switch paddle 4 is rotatably provided in the notch 26. The upper flip cover 1 is provided with an observation window 12 whose length and width match the fixed part 21. A light-transmitting groove 22 is provided in the middle of the fixed part 21.

[0025] In this embodiment, the lower substrate 2 is installed and fixed on the testing machine, wherein the light-transmitting groove 22 coincides with the testing groove of the testing machine, the microswitch on the machine and one end of the microswitch paddle 4 abut against each other, the S-shaped microswitch paddle 4 is located in the groove 26, and the other end of the microswitch paddle 4 is located between the groove 26 and the lever 11, and the microswitch is indirectly controlled by squeezing the microswitch paddle 4 through the lever 11.

[0026] See also Figure 3 It should be noted that, since a limit block 31 is provided between the relative rotation axes of the hinge 3 for rotating between the upper flip cover 1 and the lower base plate 2, the upper flip cover 1 can only rotate from a position in contact with the lower base plate 2 to a position perpendicular to the lower base plate 2, that is, between 0-90°.

[0027] It should be noted that when the upper flip cover 1 is at 90°, the lever 11 arranged perpendicular to the upper flip cover 1 is parallel to the lower base plate 2. At this time, the lever 11 and the micro switch paddle 4 are in a squeeze contact state, so that the test machine is in a power-off state.

[0028] The working process is as follows: when the upper flip cover 1 is at 90°, the test product is manually placed into the fixing portion 21. Since seven locking grooves 23 are recessed on the edge of the fixing portion 21, a positioning lock 24 is slidably provided in the locking groove 23. Since the locking groove 23 is communicated with the fixing portion 21, the test product can be positioned and locked in the fixing portion 21 by sliding the positioning lock 24. Then rotate the upper flip cover 1 to 0°, that is, the upper flip cover 1 is fitted with the lower base plate 2. During this process, the lever 11 is separated from the extrusion contact with the micro switch paddle 4, and the test machine can complete the power-on, so that the product is tested in a closed environment, thereby avoiding hot plugging operation; since the observation window 12 is aligned with the fixing portion 21, the product test state can be viewed through the observation window 12. After the test is completed, in order to facilitate the opening and rotation of the upper flip cover 1, a hook groove 13 is provided on the upper flip cover 1, and the operator can easily hook up the upper flip cover 1 through the hook groove 13. When the upper flip cover 1 is at 90°, the lever 11 is in extrusion contact with the micro switch paddle 4, so that the test machine is powered off, the positioning lock 24 is unlocked, and the test product is taken out, thereby avoiding hot plugging operation; wherein, in order to facilitate the better removal of the tested product, a buckle groove 25 is provided between the lower base plate 2 and the fixing portion 21, and the operator can reach into the bottom of the test product through the buckle groove 25 and flip up the product for easy product removal.

[0029] In summary, the anti-hot-plug fixture for testing liquid crystal panels in the above-mentioned embodiments of the utility model vertically sets a lever on the upper cover plate, and when the upper cover plate is fitted with the lower substrate, the product is in a closed environment, the lever and the micro switch paddle are separated from the extrusion contact, the test machine is powered on, and the product is tested, thereby avoiding hot plugging of the product, and the lever and the micro switch paddle are only in extrusion contact when the upper cover plate is vertical to the lower substrate, and the test machine is in a power-off state, so that the product cannot be hot-plugged, and a fixing part and a positioning lock used in conjunction with the fixing are set on the lower substrate, so that the utility model can achieve the anti-hot-plug and fixing functional characteristics, reduce the problems of internal circuit burnout, no display, abnormal display, etc. of the product due to hot plugging during detection, reduce the probability of rework, and improve work efficiency.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model. 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, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. A liquid crystal panel test anti-hot plug fixture, characterized in that: It includes an upper flip cover and a lower base plate hingedly connected to the upper flip cover, the upper flip cover is vertically provided with a lever, the lower base plate includes a main body part and a fixed part formed by the main body part being recessed inwardly, the main body part is located on one side of the hinge and is provided with a notch for avoiding the lever, a micro switch paddle is rotatably provided in the notch, the upper flip cover is provided with an observation window matched with the fixed part, and a light-transmitting groove is provided in the middle of the fixed part.

2. The anti-hot-swap fixture for testing a liquid crystal panel according to claim 1, characterized in that: The lower base plate is recessed and provided with a locking groove near the edge of the fixing portion, a positioning lock is slidably provided in the locking groove, and the locking groove is communicated with the fixing portion.

3. The anti-hot-swap fixture for testing a liquid crystal panel according to claim 1, characterized in that: The upper flip cover is recessed at one side away from the hinge to form a hook groove.

4. The anti-hot-swap fixture for testing a liquid crystal panel according to claim 1, characterized in that: The lower substrate is provided with a buckle groove, and the buckle groove is located between the fixing portion and the main body portion.

5. The anti-hot-swap fixture for testing a liquid crystal panel according to claim 1, characterized in that: A limiting block is arranged between the hinge and the rotating shaft.

6. The anti-hot-swap fixture for testing a liquid crystal panel according to claim 1, characterized in that: The micro switch paddle is arranged in an S shape, and one end of the micro switch is located between the notch and the paddle.

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