CN209962047U - Liquid crystal display screen with high anti-seismic performance - Google Patents

Abstract

A liquid crystal display screen with high anti-seismic performance comprises a screen frame, a heat insulation transparent plate, a backlight module, an adapter plate and a heat dissipation plate, wherein the screen frame comprises a front frame and a rear frame, a plurality of multi-stage anti-seismic devices are arranged between the contact surfaces of the front frame and the backlight module, each multi-stage anti-seismic device comprises a lower bottom plate, an upper pressing plate, a first-stage spring and a second-stage spring, the lower bottom plate is fixed on the inner wall of the screen frame, a central through hole is formed in the middle of the lower bottom plate, a guide cylinder is arranged on the periphery of the central through hole, a vertically arranged guide rod is arranged on one surface, close to the lower bottom plate, of the upper pressing plate, and a step part protruding towards; compared with the prior art, the beneficial effects of the utility model reside in that: by adopting the multistage anti-vibration device, the backlight module can be buffered to prevent damage, and meanwhile, the vibration amplitude of the backlight module is limited, so that looseness or short circuit of a circuit of the backlight module is prevented.

Description

Liquid crystal display screen with high anti-seismic performance

[ technical field ] A method for producing a semiconductor device

The utility model relates to a liquid crystal display technical field, specificly relate to a liquid crystal display of high anti-seismic performance.

[ background of the invention ]

With the rapid development of the technology, the liquid crystal display screen does not finish a simple display function any more, and higher requirements are put forward on the design of the liquid crystal display screen. The liquid crystal module is liquid crystal display's core device, but receives vibrations and be impaired easily, and prior art adopts a pair of cardboard that sets up in the frame to carry out the joint fixed, but the anti-seismic performance that should take place is poor, in transportation and use, will seriously impaired when meetting great vibrations.

In view of the above, it is desirable to provide a liquid crystal display with high shock resistance to overcome the deficiencies of the prior art.

[ Utility model ] content

The utility model aims at providing a liquid crystal display of high anti-seismic performance aims at realizing playing the cushioning effect to backlight unit, prevents to damage, prevents not hard up or short circuit.

In order to achieve the above object, the utility model provides a liquid crystal display with high anti-seismic performance, which comprises a screen frame, a heat insulation transparent plate, a backlight module, a switching plate and a heat dissipation plate, wherein the heat insulation transparent plate, the backlight module, the switching plate and the heat dissipation plate are arranged in the screen frame;

a plurality of multi-stage anti-vibration devices are arranged between the contact surfaces of the front frame and the backlight module, each multi-stage anti-vibration device comprises a lower bottom plate, an upper pressing plate, a primary spring and a secondary spring, the lower base plate is fixed on the inner wall of the screen frame, the middle of the lower base plate is provided with a central through hole, a guide cylinder is arranged on the periphery of the central through hole, the secondary spring is arranged in the guide cylinder, one side of the upper pressure plate, which is close to the lower bottom plate, is provided with a vertically arranged guide rod, one end of the guide rod, which is close to the upper pressure plate, is provided with a step part which is convex towards the periphery, the guide rod passes through the secondary spring and the central through hole, the primary spring is sleeved on the periphery of the guide rod and the guide cylinder, still be equipped with a plurality of holes of dodging on the inner wall of preceding frame, every dodges the hole and coincides with the axis of the central through-hole of the multistage antidetonation device that corresponds, guide bar, guide cylinder, one-level spring and second grade spring.

In a preferred embodiment, a rubber ring is provided on the top side wall of the step.

In a preferred embodiment, the lower base plate is provided with a plurality of soldering tin holes with a convex cross section, the inner wall of the front frame is also provided with a plurality of soldering tin grooves corresponding to the soldering tin holes, and the cross section of each soldering tin groove is in an inverted convex shape.

In a preferred embodiment, the spring constant of the secondary spring is greater than the spring constant of the primary spring.

In a preferred embodiment, a clamping edge is arranged on one side of the front frame, which is in contact with the rear frame, a barb edge is arranged on one side of the rear frame, which is in contact with the front frame, and the barb edge is buckled on the clamping edge in a reverse mode so that the rear frame is detachably connected with the front frame.

Compared with the prior art, the utility model provides a pair of high shock resistance's liquid crystal display's beneficial effect lies in: by adopting the multistage anti-vibration device, the backlight module can be buffered to prevent damage, and meanwhile, the vibration amplitude of the backlight module is limited, so that looseness or short circuit of a circuit of the backlight module is prevented.

[ description of the drawings ]

Fig. 1 is the utility model provides a high shock resistance's liquid crystal display's cross-sectional view.

Fig. 2 is an enlarged view of the area a shown in fig. 1.

Fig. 3 is a cross-sectional view of the multi-stage seismic mitigation device of fig. 1 in another state.

[ detailed description ] embodiments

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, the present invention provides a liquid crystal display screen 100 with high anti-seismic performance.

The embodiment of the utility model provides an in, liquid crystal display 100 of high anti-seismic performance includes bezel 10, sets up thermal-insulated transparent plate 20, backlight unit 30, keysets 40 and heating panel 50 in the bezel 10, bezel 10 include preceding frame 11 and with the back frame 12 that bezel 10 is connected, thermal-insulated transparent plate 20 is fixed with backlight unit 30 in preceding frame 11, keysets 40 and heating panel 50 are fixed in back frame 12.

Specifically, referring to fig. 2, a plurality of multi-stage anti-vibration devices 60 are disposed between the contact surface of the front frame 11 and the backlight module 30, each multi-stage anti-vibration device 60 includes a lower plate 61, an upper plate 62, a first-stage spring 63 and a second-stage spring 64, the lower plate 61 is fixed on the inner wall of the bezel 10, a central through hole 611 is disposed in the middle of the lower plate 61, a guide cylinder 612 is disposed at the periphery of the central through hole 611, the second-stage spring 64 is disposed in the guide cylinder 612, a vertically disposed guide rod 621 is disposed on one surface of the upper plate 62 close to the lower plate 61, a step 622 protruding to the periphery is disposed at one end of the guide rod 621 close to the upper plate 62, the guide rod 621 penetrates through the second-stage spring 64 and the central through hole 611, the first-stage spring 63 is sleeved on the peripheries of the guide rod 621 and the guide cylinder 612, a plurality of avoiding holes 111 are further disposed on the inner, each avoiding hole 111 coincides with the central through hole 611 of the corresponding multistage anti-seismic device 60, the guide rod 621, the guide cylinder 612, the first-stage spring 63 and the second-stage spring 64.

It can be understood that when the lcd panel 100 with high shock resistance is slightly shocked, the backlight module 30 will press the upper pressing plate 62, so that the upper pressing plate 62 drives the guide rod 621 to move downward, and further compress the primary spring 63, and at this time, the secondary spring 64 is not compressed; if a large shock is applied, the upper pressing plate 62 will continue to drive the guide rod 621 to move downward, and the step 622 on the guide rod 621 enters the guide cylinder 612, so that the primary spring 63 and the secondary spring 64 are compressed; if a sufficient shock is applied, the upper pressing plate 62 will continue to move the guide rod 621 downward until the upper pressing plate 62 contacts the top of the guide cylinder 612, as shown in fig. 3. By adopting the multistage anti-vibration device 60, the backlight module 30 can be buffered to prevent damage, and the vibration amplitude of the backlight module 30 is limited, so that the circuit of the backlight module 30 is prevented from being loosened or short-circuited.

Further, a rubber ring 623 is disposed on a top side wall of the stepped portion 622, and when a sufficiently large shock is applied, the upper pressure plate 62 contacts with the top of the guide cylinder 612, and the rubber ring 623 can further play a role in buffering.

Furthermore, a plurality of solder holes 613 with a convex cross section are formed in the lower base plate 61, a plurality of solder grooves 112 corresponding to the solder holes 613 are further formed in the inner wall of the front frame 11, and the cross section of each solder groove 112 is of an inverted convex cross section. By filling the solder holes 613 and the solder grooves 112 with molten tin, the lower plate 61 is fixed to the inner wall of the front frame 11, and the connection is more stable.

Further, the elastic coefficient of the secondary spring 64 is greater than that of the primary spring 63, so that the elastic force of the multistage anti-vibration device 60 can be continuously increased, and the anti-vibration effect is improved.

Further, preceding frame 11 with one side that rear frame 12 contacted is equipped with card limit 113, rear frame 12 with one side that preceding frame 11 contacted is equipped with barb limit 121, through barb limit 121 back-off is in make on the card limit 113 rear frame 12 with preceding frame 11 can dismantle the connection, convenient equipment and dismantlement.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (5)

1. The utility model provides a liquid crystal display of high anti-seismic performance, includes the screen frame, sets up thermal-insulated transparent plate, backlight unit, keysets and heating panel in the screen frame, the screen frame include preceding frame and with the back frame that the screen frame is connected, thermal-insulated transparent plate is fixed with backlight unit in the preceding frame, keysets and heating panel are fixed in the back frame, its characterized in that: a plurality of multi-stage anti-vibration devices are arranged between the contact surfaces of the front frame and the backlight module, each multi-stage anti-vibration device comprises a lower bottom plate, an upper pressing plate, a primary spring and a secondary spring, the lower base plate is fixed on the inner wall of the screen frame, the middle of the lower base plate is provided with a central through hole, a guide cylinder is arranged on the periphery of the central through hole, the secondary spring is arranged in the guide cylinder, one side of the upper pressure plate, which is close to the lower bottom plate, is provided with a vertically arranged guide rod, one end of the guide rod, which is close to the upper pressure plate, is provided with a step part which is convex towards the periphery, the guide rod passes through the secondary spring and the central through hole, the primary spring is sleeved on the periphery of the guide rod and the guide cylinder, still be equipped with a plurality of holes of dodging on the inner wall of preceding frame, every dodges the hole and coincides with the axis of the central through-hole of the multistage antidetonation device that corresponds, guide bar, guide cylinder, one-level spring and second grade spring.

2. The high-shock-resistance liquid crystal display panel according to claim 1, wherein: and a rubber ring is arranged on the side wall of the top of the step part.

3. The high-shock-resistance liquid crystal display panel according to claim 1, wherein: the lower base plate is provided with a plurality of soldering tin holes with convex cross sections, the inner wall of the front frame is also provided with a plurality of soldering tin grooves corresponding to the soldering tin holes, and the cross sections of the soldering tin grooves are in inverted convex shapes.

4. The high-shock-resistance liquid crystal display panel according to claim 1, wherein: the elastic coefficient of the secondary spring is larger than that of the primary spring.

5. The high-shock-resistance liquid crystal display panel according to claim 1, wherein: the front frame and one side of the rear frame in contact are provided with clamping edges, the rear frame and one side of the front frame in contact are provided with barb edges, and the barb edges are reversely buckled on the clamping edges to enable the rear frame to be detachably connected with the front frame.

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