Novel LCD optical module

Abstract

The utility model discloses a novel LCD optical module, which comprises a front cover, a rear cover, two pieces of sealing glass, an LCD screen and a sealing gasket, the front cover is matched with the rear cover, the two pieces of sealing glass are respectively fixed on the front cover and the rear cover, the LCD screen is arranged between the front cover and the rear cover, a cooling cavity is formed between the front cover and the rear cover, the LCD screen is positioned in the cooling cavity, and the sealing gasket is arranged in the cooling cavity. The sealing gasket is clamped between the front cover and the rear cover and provided with a pressure relief liquid bag, and the pressure relief liquid bag is communicated with the cooling cavity. The LCD screen is soaked in the cooling liquid, a large amount of heat gathered on the surface of the LCD screen can be taken away through the cooling liquid, excessive accumulation of heat on the LCD screen is effectively avoided, the temperature of the LCD screen is prevented from being too high, and the heat dissipation efficiency is improved; when the cooling liquid is heated and expanded, the pressure relief liquid bag can be expanded, the phenomenon that the liquid is expanded due to temperature rise to cause leakage of the cooling liquid is avoided, pressure fluctuation in the cooling cavity is flattened, and the sealing performance and the overall service life of the cooling liquid in the cooling cavity are guaranteed.

Description

Technical Field

[0001] The utility model belongs to an optical module structure, in particular to a novel LCD optical module. Background Art

[0002] General LCD screen display structure (such as Figure 1 As shown in the figure, the red arrow indicates the direction of light. A common bracket structure is adopted, and a plastic bracket is used to hold the optical device and the LCD screen to form a cooling channel. The area where the temperature rises due to the light energy gathered on the surface of the LCD screen is cooled by the air at a lower temperature. When the power of the light source needs to meet a higher brightness, a large amount of heat is accumulated on the surface of the LCD. The cooling fan cannot quickly remove this heat, which soon causes the temperature to rise beyond the working range of the LCD screen, thereby affecting the service life of the LCD screen. Utility Model Content

[0003] The purpose of the present invention is to provide a novel LCD optical module that can solve at least one of the above problems.

[0004] According to one aspect of the present invention, a new LCD optical module is provided, comprising a front cover, a rear cover, sealing glass, an LCD screen and a sealing gasket. The front cover and the rear cover cooperate with each other. The sealing glass is provided in two pieces, which are fixed to the front cover and the rear cover respectively. The LCD screen is arranged between the front cover and the rear cover. A cooling cavity is formed between the front cover and the rear cover. The LCD screen is located in the cooling cavity. The sealing gasket is clamped between the front cover and the rear cover. A pressure relief liquid bag is provided on the sealing gasket. The pressure relief liquid bag is connected to the cooling cavity. The cooling cavity is loaded with coolant.

[0005] The beneficial effects of the present invention are as follows: by providing a cooling chamber, the LCD screen can be immersed in the coolant, and a large amount of heat accumulated on the surface of the LCD screen can be taken away by the coolant and conducted to the front cover and the rear cover for conduction, thereby effectively avoiding excessive accumulation of heat on the LCD screen, preventing the LCD screen from being overheated, keeping it within the normal operating temperature range, and improving the heat dissipation efficiency; by providing a pressure relief liquid capsule, when the coolant heats up and expands, the pressure relief liquid capsule can expand, avoiding the phenomenon of rapid increase in coolant leakage caused by expansion of the liquid due to temperature increase, smoothing the pressure fluctuation in the cooling chamber, ensuring the sealing of the coolant in the cooling chamber, and ensuring the overall service life.

[0006] In some embodiments, a receiving groove is provided on the inner side of the front cover and / or the rear cover, and the pressure relief liquid capsule is located in the receiving groove. Thus, the receiving groove facilitates the installation and placement of the pressure relief liquid capsule and provides corresponding space for the expansion of the pressure relief liquid capsule.

[0007] In some embodiments, the sealing gasket is clamped at the peripheral joint of the front cover and the rear cover, and the pressure relief liquid capsule and the sealing gasket are integrally formed. This facilitates the processing and molding of the pressure relief liquid capsule and ensures that the pressure relief liquid capsule has a certain elasticity.

[0008] In some embodiments, an opening is provided on one side of the pressure relief bladder, communicating with the cooling chamber. This opening facilitates communication with the cooling chamber and the flow of coolant, allowing the coolant to expand due to heat and flow into the pressure relief bladder, preventing coolant leakage. Furthermore, when the coolant temperature drops, the coolant can flow back from the pressure relief bladder into the cooling chamber, balancing the pressure and preventing air from entering the cooling chamber.

[0009] In some embodiments, both the front cover and the back cover are provided with a slot into which the sealing gasket is inserted, thereby enhancing the sealing effect of the sealing gasket.

[0010] In some embodiments, a first ridge and a second ridge are provided on either side of the sealing gasket, respectively. The first and second ridges are both clamped between the front cover and the rear cover and located outside the slot. Thus, the first and second ridges can increase the contact area between the sealing gasket and the front and rear covers, thereby increasing the liquid overflow path and width, and further improving the sealing performance.

[0011] In some embodiments, ribs are provided on both sides of the sealing gasket, which abut against the corresponding grooves. The ribs can locally increase the sealing pressure, and combined with the first and second ribs, they significantly improve the overall sealing performance of the rubber ring. Furthermore, the assembly is simple, convenient, and quick to install, eliminating the need for high-temperature sealant and the subsequent gluing process, indirectly saving the use of high-temperature glue and the process involved, thus reducing production costs.

[0012] In some embodiments, a first mounting groove is provided on the inner side of the front cover, and a second mounting groove is provided on the inner side of the rear cover, wherein one sealing glass is fixed in the first mounting groove and the other sealing glass is fixed in the second mounting groove, thereby facilitating the rapid positioning and installation of the two sealing glasses.

[0013] In some embodiments, a communicating hole is provided at the bottom of the front cover or the rear cover, the communicating hole being connected to the cooling cavity, and the communicating hole being connected to the opening;

[0014] When the opening is located on the side close to the front cover, the communication hole is located on the front cover;

[0015] When the opening is located near the side of the rear cover, the communicating hole is located on the rear cover. Thus, by providing the communicating hole, the coolant in the cooling cavity can be easily flowed into the pressure relief liquid bag.

[0016] In some embodiments, the novel LCD optical module further includes cooling pipes located outside the front and rear covers and in contact with the front and rear covers. Thus, the cooling pipes facilitate faster heat dissipation from the front and rear covers, further improving heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an LCD screen display structure in the prior art.

[0018] Figure 2 It is a structural schematic diagram of the novel LCD optical module of the present utility model.

[0019] Figure 3 This is a schematic diagram of the exploded structure of the novel LCD optical module of the present utility model.

[0020] Figure 4 This is a side view structural diagram of the novel LCD optical module of the present utility model.

[0021] Figure 5 yes Figure 4 AA cross-sectional structural diagram.

[0022] Figure 6 yes Figure 4 BB cross-sectional structure diagram.

[0023] Figure 7 It is a structural schematic diagram of a sealing gasket in a novel LCD optical module of the present utility model.

[0024] Figure 8 This is a schematic cross-sectional structural diagram of a sealing gasket in a novel LCD optical module of the present utility model.

[0025] Figure 9 This is a structural schematic diagram of the connection between the novel LCD optical module and the cooling pipe of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figures 2 to 7The new LCD optical module includes a front cover 1, a back cover 2, a sealing glass 3, an LCD screen 4, and a sealing gasket 5. The front cover 1 and the back cover 2 cooperate with each other. The sealing glass 3 is composed of two pieces, which are fixed to the front cover 1 and the back cover 2 respectively. The LCD screen 4 is arranged between the front cover 1 and the back cover 2. A cooling cavity 6 is formed between the front cover 1 and the back cover. The LCD screen 4 is located in the cooling cavity 6. The sealing gasket 5 is clamped between the front cover 1 and the back cover 2. A pressure relief liquid capsule 51 is provided on the sealing gasket 5. The pressure relief liquid capsule 51 is connected to the cooling cavity 6, and the cooling cavity 6 is loaded with coolant. The coolant is an existing transparent cooling oil, which does not affect the light transmission effect of the LCD screen 4.

[0028] When installing LCD screen 4, the bottom of the frame of LCD screen 4 can be bonded to the inside of front cover 1 or rear cover 2. Then, sealing gasket 5 is placed at the mating point between front cover 1 and rear cover 2, and the front and rear covers 1 and 2 are secured together with screws. A cavity is formed between front cover 1 and rear cover 2, facilitating the installation of LCD screen 4 and the layout of cooling cavity 6. Sealing gasket 5 seals the coolant in cooling cavity 6, preventing it from leaking.

[0029] In actual use, in order for the coolant to better remove heat from the LCD screen 4, the width of the LCD screen 4 is smaller than the width of the accommodating cavity, so that the left and right sides of the LCD screen 4 are also located in the coolant, that is, the entire LCD screen 4 is immersed in the coolant. As a result, the large amount of heat accumulated on the surface of the LCD screen can be conducted away through the coolant around the entire periphery of the LCD screen 4, and conducted to the front cover 1 and the rear cover 2, and then dissipated through the front cover 1 and the rear cover 2. In order to improve the heat dissipation efficiency of the front cover 1 and the rear cover 2, the front cover 1 and the rear cover 2 are made of metal to improve the heat conduction efficiency and facilitate the rapid dissipation of heat. In addition, a cooling fan or external cooling pipe can be installed on the outside of the entire module to facilitate the rapid removal of heat from the module.

[0030] The cooling effect of the coolant in the cooling chamber 6 can promptly remove the heat from the LCD screen 4, allowing the LCD screen to maintain a normal operating temperature range, not exceeding 70°C, thereby extending the service life of the LCD screen. The shapes of the front cover, back cover, and LCD screen can be adjusted according to actual usage requirements and can be square, circular, or polygonal, etc., to meet the requirements of different usage scenarios.

[0031] When assembling, the front cover 1 and the rear cover 2 are locked and fixed at the four top corners by sealing screws 7; in order to ensure the sealing effect when the front cover and the rear cover are matched, a sealing rubber ring 30 is installed at the corresponding side cover matching position of the sealing screw 7 to ensure the corresponding sealing effect.

[0032] A receiving groove 11 is defined on the inside of the front cover 1 and / or the rear cover 2, and the pressure relief bladder 51 is positioned within the receiving groove 11. The receiving groove 11 can be defined on the inside of the front cover 1 or rear cover 2, below the LCD screen 4, or it can be defined on both the front cover 1 and rear cover 2 to facilitate placement and installation of the pressure relief bladder 51. To ensure sufficient expansion space for the pressure relief bladder 51 when the coolant expands due to heat, the length and width of the receiving groove 11 are correspondingly greater than those of the pressure relief bladder 51.

[0033] The sealing gasket 5 is clamped at the periphery of the front cover 1 and the rear cover 2. The pressure relief sac 51 and the sealing gasket 5 are an integrally formed structure. The sealing gasket 5 is made of rubber and the pressure relief sac 51 has a certain elasticity to meet the deformation requirements of the pressure relief sac 51 under the action of hydraulic pressure.

[0034] When the novel LCD optical module is in use, the LCD screen 4 generates heat during operation, and the coolant in the cooling chamber takes away the heat. The temperature of the coolant is increased by the heat, and the coolant expands to a certain extent under the action of thermal expansion and contraction. When the coolant expands, the pressure relief liquid capsule 51 is forced to expand outward, so that the coolant can flow toward the pressure relief liquid capsule 51 after the heat expansion, thereby avoiding excessive hydraulic pressure in the cooling chamber 6 and avoiding leakage caused by excessive coolant pressure.

[0035] An opening 52 is provided on one side of the pressure relief liquid capsule 51, and the opening 52 is connected to the cooling cavity 6. The opening 52 of the pressure relief liquid capsule 51 is connected to the cooling cavity, so that the coolant in the entire module is in a sealed state.

[0036] During actual use, in order to ensure that the pressure relief sac 51 can expand and contract normally in the receiving tank 11, a through hole 20 is provided on the side of the receiving tank 11 facing away from the opening 52. The through hole 20 passes through the cover on the corresponding side and is connected to the external atmosphere. The through hole 20 does not affect the sealing effect of the pressure relief sac 51. By providing the through hole 20, the receiving tank 11 is connected to the external atmosphere, so that the air pressure in the receiving tank 11 remains consistent with the external atmospheric pressure. Therefore, the pressure relief sac 51 can expand normally when heated and contract normally when cooled under the action of hydraulic pressure and air pressure. Among them, the through hole 20 can be a circular through hole or a square through hole. While ensuring that the receiving tank 11 is connected to the outside world, it can effectively prevent strong light from directly shining on the surface of the pressure relief sac 51, thereby preventing the local accelerated aging of the pressure relief sac 51.

[0037] The front cover 1 and the back cover 2 are both provided with a card slot 8, and the sealing gasket 5 is carded into the card slot 8. Thus, the sealing gasket 5 can be pressed tightly between the front cover 1 and the back cover 2 through the card slot 8, and the sealing effect of the sealing gasket 5 is increased.

[0038] like Figure 2 、 Figure 7 and Figure 8As shown, a first ridge 53 and a second ridge 54 are respectively provided on both sides of the sealing gasket 5 . The first ridge 53 and the second ridge 54 are both clamped between the front cover 1 and the rear cover 2 and are located outside the card slot 8 .

[0039] The other two sides of the sealing gasket 5 are provided with ribs 55 , which abut against the slots 8 on the corresponding sides.

[0040] The gasket 5, first ridge 53, second ridge 54, and rib 55 are integrally injection-molded. The first and second ridges 53, 54 increase the contact area between the gasket 5 and the front and rear covers, thereby improving sealing performance. The rib 55 locally increases the sealing pressure, enhancing the overall sealing performance of the gasket. The coordination of the various structures of the gasket 5 with the front and rear covers facilitates quick positioning and installation of the gasket, resulting in simple and convenient installation. This eliminates the need for adhesive bonding between the gasket and the front and rear covers, and eliminates the use and application of high-temperature sealant, indirectly saving the use and process of high-temperature glue and reducing production costs.

[0041] like Figure 2 and Figure 6 As shown, a first mounting groove 12 is provided on the inner side of the front cover 1, and a second mounting groove 21 is provided on the inner side of the rear cover 2. One piece of sealing glass 3 is fixed in the first mounting groove 12, and the other piece of sealing glass 3 is fixed in the second mounting groove 21. The dimensions of the first mounting groove 12 and the second mounting groove 21 are consistent with the dimensions of the corresponding sealing glass, facilitating the snap-in installation of the sealing glass. To enhance the stability of the installation of the sealing glass 3, each sealing glass is fixed to the corresponding mounting groove using high-temperature sealant, which provides a seal and ensures the stability of the sealing glass bonding.

[0042] A communication hole 9 is provided at the bottom of the front cover 1 or the rear cover 2 , and the communication hole 9 is connected to the cooling cavity 6 , and the communication hole 9 is connected to the opening 52 ;

[0043] When the opening 52 is located close to the side of the front cover 1, the communication hole 9 is located on the front cover 1;

[0044] When the opening 52 is located close to the rear cover 2 , the communication hole 9 is located on the rear cover 2 .

[0045] Taking the example of the opening 52 being opened on the side close to the front cover 1, the opening of the pressure relief capsule 51 is opposite to the side wall of the front cover 1, so that the side wall of the front cover 1 and the pressure relief capsule 51 form a capsule-shaped space. Therefore, when the coolant in the cooling chamber expands due to heat, under the action of hydraulic pressure, the pressure relief capsule 51 is squeezed, and the pressure relief capsule 51 can expand outward, making it easier for the coolant to flow into the pressure relief capsule 51 through the connecting hole 9, thereby achieving pressure relief and avoiding excessive hydraulic pressure in the entire cooling chamber, which causes the coolant to be squeezed out and leak out. Conversely, when the coolant cools down, the pressure on the pressure relief capsule 51 gradually decreases, so the pressure relief capsule 51 gradually shrinks, avoiding the infiltration of air from the outside to the inside, which causes bubbles to form in the coolant, and ensuring the light transmission effect of the LCD screen.

[0046] The connecting hole 9 can be one or more, so that the coolant in the cooling chamber 6 can flow into the pressure relief bladder 51, or the coolant in the pressure relief bladder 51 can flow into the cooling chamber through the connecting hole 9, so as to facilitate the flow of the coolant during expansion or contraction. In actual use, the size of the opening can be adjusted accordingly, and can be reduced to a hole-like size.

[0047] like Figure 9 As shown, the new LCD optical module also includes cooling pipes located on the outside of the front cover 1 and rear cover 2, contacting the front and rear covers 1 and 2. These cooling pipes can be installed on the front and rear covers 1 and 2, and can flow through external coolant. This external coolant quickly removes heat from the front and rear covers 1 and 2, thereby improving the heat dissipation efficiency of the front and rear covers and achieving a better overall heat dissipation effect. In actual use, to further improve the heat dissipation speed of the front and rear covers 1 and 2, cooling fans can be installed on the outside to dissipate heat from the front and rear covers.

[0048] The novel LCD optical module of the present invention soaks the LCD screen 4 in a coolant, which can promptly remove heat from the entire LCD screen 4. The coolant adopts the existing high-transparency coolant used to cool display screens, so that the visible light transmittance of the entire module, excluding the LCD screen, and the entire structural frame can reach 88.3% to 95.5% as measured and calculated by the Linshang Instrument LS108A lens transmittance measuring instrument, thereby not affecting the use of the entire module.

[0049] The above are only preferred embodiments of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A new LCD optical module, characterized in that: The invention comprises a front cover (1), a back cover (2), a sealing glass (3), an LCD screen (4) and a sealing gasket (5), wherein the front cover (1) and the back cover (2) are matched, the sealing glass (3) is two pieces, and the two pieces of sealing glass (3) are fixed on the front cover (1) and the back cover (2) respectively, the LCD screen (4) is arranged between the front cover (1) and the back cover (2), a cooling cavity (6) is formed between the front cover (1) and the back cover, and the LCD screen (4) is located In the cooling cavity (6), the sealing gasket (5) is clamped between the front cover (1) and the rear cover (2); a pressure relief liquid bag (51) is provided on the sealing gasket (5); the pressure relief liquid bag (51) is communicated with the cooling cavity (6); the cooling cavity (6) is loaded with cooling liquid; the width of the LCD screen (4) is smaller than the width of the cooling cavity (6); when the front cover (1) and the rear cover (2) are assembled, they are locked and fixed at four top corners by sealing screws (7).

2. The novel LCD optical module according to claim 1, characterized in that: An accommodating groove (11) is provided on the inner side of the front cover (1) and / or the rear cover (2), and the pressure relief liquid bag (51) is located in the accommodating groove (11).

3. The novel LCD optical module according to claim 2, characterized in that: The sealing gasket (5) is clamped at the peripheral matching position of the front cover (1) and the rear cover (2), and the pressure relief liquid bag (51) and the sealing gasket (5) are an integrally formed structure.

4. The novel LCD optical module according to claim 3, characterized in that: An opening (52) is provided on one side of the pressure relief liquid bag (51), and the opening (52) is communicated with the cooling cavity (6).

5. The novel LCD optical module according to any one of claims 1 to 4, characterized in that: The front cover (1) and the rear cover (2) are both provided with a card slot (8), and the sealing gasket (5) is carded into the card slot (8).

6. The novel LCD optical module according to claim 5, characterized in that: A first ridge (53) and a second ridge (54) are respectively provided on both sides of the sealing gasket (5); the first ridge (53) and the second ridge (54) are clamped between the front cover (1) and the rear cover (2) and are located outside the card slot (8).

7. The novel LCD optical module according to claim 6, characterized in that: The other two sides of the sealing gasket (5) are provided with convex ribs (55), and the convex ribs (55) abut against the clamping grooves (8) on the corresponding sides.

8. The novel LCD optical module according to any one of claims 1 to 4, characterized in that: A first mounting groove (12) is provided on the inner side of the front cover (1), and a second mounting groove (21) is provided on the inner side of the rear cover (2); one piece of the sealing glass (3) is fixed in the first mounting groove (12), and the other piece of the sealing glass (3) is fixed in the second mounting groove (21).

9. The novel LCD optical module according to claim 4, characterized in that: A communicating hole (9) is provided at the bottom of the front cover (1) or the rear cover (2), the communicating hole (9) is connected to the cooling cavity (6), and the communicating hole (9) is connected to the opening (52); When the opening (52) is located close to the side of the front cover (1), the communication hole (9) is located on the front cover (1); When the opening (52) is located close to the side of the rear cover (2), the communication hole (9) is located on the rear cover (2).

10. The novel LCD optical module according to claim 9, characterized in that: It also includes a cooling pipe, which is located outside the front cover (1) and the rear cover (2) and is in contact with the front cover (1) and the rear cover (2).

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