CN219040002U - Glue-pouring type liquid crystal display protective structure - Google Patents
Glue-pouring type liquid crystal display protective structure Download PDFInfo
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- CN219040002U CN219040002U CN202223221860.7U CN202223221860U CN219040002U CN 219040002 U CN219040002 U CN 219040002U CN 202223221860 U CN202223221860 U CN 202223221860U CN 219040002 U CN219040002 U CN 219040002U
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- liquid crystal
- transparent shell
- sealing plug
- glue
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Abstract
The utility model relates to a glue-pouring type liquid crystal screen protection structure, in particular to protection of electronic instruments with a liquid crystal display screen and the like, and belongs to the technical field of electronic instruments. The technical proposal is as follows: the liquid crystal screen (3) is connected with the liquid crystal support (4) through a pin structure; the liquid crystal support (4) is stuck in the transparent shell (1); the circuit board (2) is connected with the transparent shell (1) through a clamping hook (11); the circuit board (2), the liquid crystal screen (3) and the liquid crystal support (4) are fixed in the transparent shell (1) through sealing glue. The utility model has the beneficial effects that: the liquid crystal and the transparent shell are connected in a glue filling mode, and meanwhile, the cured sealant is guaranteed not to generate stress under the cold and hot conditions to influence the liquid crystal display, so that the operation is simple, the labor is reduced, and the cost is saved.
Description
Technical Field
The utility model relates to a glue-pouring type liquid crystal screen protection structure, in particular to protection of electronic instruments with a liquid crystal display screen and the like, and belongs to the technical field of electronic instruments.
Background
Existing meter class products often need to reach the IP68 protection level to accommodate humid use environments. Some manufacturers use a liquid crystal screen, a circuit board and the like in a shell of an instrument product to carry out sealing treatment of pouring sealant, and because the pouring sealant can generate shrinkage stress in a cold and hot process, the shrinkage coefficients of the liquid crystal screen and the pouring sealant are different, the generated shrinkage stress is extremely easy to damage the liquid crystal screen, so that the instrument cannot normally display. Some manufacturers use a gasket between the liquid crystal protective cover and the casing or the transparent material, and the gasket surrounds the liquid crystal screen, for example, the liquid crystal screen sealing protection structure of the applicant of the company is disclosed in patent CN205193391U. Through the cooperation of liquid crystal safety cover and sealed pad, can effectively keep apart LCD screen and sealant, avoid the shrinkage stress that sealant produced to cause the damage to the LCD screen. However, the sealing operation with the sealing gasket structure is complex, the cost is high, the accuracy of the placing position of the sealing gasket cannot be guaranteed by manual operation, the risk of scratching a shell window and bringing foreign matters in the placing process is also caused, and if the side wall of the shell of the instrument is heightened, the personnel cannot operate.
Disclosure of Invention
The utility model aims to provide a glue-filled type liquid crystal display protective structure, which is used for connecting liquid crystal and a transparent shell in a glue-filling mode, ensuring that the cured sealant can not generate stress to influence the liquid crystal display under cold and hot conditions, and has the advantages of simplicity in operation, labor reduction, cost saving and capability of solving the technical problems existing in the prior art.
The technical scheme of the utility model is as follows:
a glue-pouring type liquid crystal display protective structure comprises a transparent shell, a circuit board, a liquid crystal display and a liquid crystal support; the liquid crystal screen is connected with the liquid crystal support through a pin type structure; the liquid crystal support is stuck in the transparent shell; the circuit board is connected with the transparent shell through a clamping hook; the circuit board, the liquid crystal screen and the liquid crystal support are fixed in the transparent shell through sealing glue.
The infrared sealing plug is arranged in the transparent shell and upwards supports the circuit board, and the infrared sealing plug is fixed in the transparent shell through sealing glue.
The liquid crystal support is stuck in the transparent shell through first sealant; the circuit board, the liquid crystal screen, the infrared sealing plug and the liquid crystal support are fixed in the transparent shell through encapsulation of a second sealant.
The transparent shell is internally provided with glue blocking ribs, the glue blocking ribs are arranged around the periphery of the transparent shell window, the glue blocking ribs and the periphery area of the transparent shell window are filled with sealant I, and the sealant I is adhered with the liquid crystal bracket together around the liquid crystal window.
A groove is formed in the transparent shell, and a support column is arranged in the groove; the infrared sealing plug is provided with a sealing plug boss at the lower part, and a sealing plug fixing hole and a sealing plug indicating lamp hole are arranged at the bottom surface of the infrared sealing plug; the infrared sealing plug is placed in the recess, and the infrared sealing plug relies on sealing plug boss interference chucking on the recess lateral wall, and the sealing plug fixed orifices inserts on the pillar, and the pilot lamp of circuit board is placed in the sealing plug pilot lamp downthehole.
The upper surrounding inner side of the liquid crystal support is larger than the outer side of the glue blocking rib, a pinhole is arranged on the upper surrounding of the liquid crystal support, and a contact pin extending out of the liquid crystal screen is inserted into the pinhole; the transparent shell is provided with a side wall fixing block, a preformed hole is formed in the circuit board, the side wall of the liquid crystal display is fixed in the side wall fixing block, and the supporting legs are inserted into the preformed hole in the circuit board.
The transparent shell is internally provided with a supporting beam, a clamping hook and a fixing beam, the supporting beam and the infrared sealing plug support the circuit board upwards together, the clamping hook downwards presses the circuit board, and the fixing beam prevents the circuit board from rotating left and right.
The display of the liquid crystal display is not affected by temperature change after the first sealant is cured, and the first sealant and the second sealant do not react.
Firstly, the transparent shell and the liquid crystal support are connected together through the first sealant, and the second sealant is filled again to assemble the transparent shell, the circuit board, the liquid crystal display, the liquid crystal support and the infrared sealing plug together to form an integrated structure.
The utility model has the beneficial effects that: the liquid crystal and the transparent shell are connected in a glue filling mode, and meanwhile, the cured sealant is guaranteed not to generate stress under the cold and hot conditions to influence the liquid crystal display, so that the operation is simple, the labor is reduced, and the cost is saved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a transparent shell structure according to the present utility model;
FIG. 3 is a schematic diagram of a liquid crystal display bracket according to the present utility model;
FIG. 4 is a schematic view of the infrared sealing plug structure of the utility model;
in the figure: transparent shell 1, circuit board 2, LCD screen 3, liquid crystal support 4, infrared sealing plug 5, sealing glue one 6, sealing glue two 7, hinder gluey muscle 8, supporting beam 9, fixed beam 10, trip 11, recess 12, pillar 13, upper enclosure 14, pinhole 15, lateral wall fixed block 16, landing leg 17, sealing plug fixed hole 18, sealing plug indicator hole 19, sealing plug boss 20.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings.
A glue-pouring type liquid crystal screen protection structure comprises a transparent shell 1, a circuit board 2, a liquid crystal screen 3 and a liquid crystal support 4; the liquid crystal screen 3 is connected with the liquid crystal support 4 through a pin structure; the liquid crystal support 4 is stuck in the transparent shell 1; the circuit board 2 is connected with the transparent shell 1 through a clamping hook 11; the circuit board 2, the liquid crystal display 3 and the liquid crystal support 4 are fixed in the transparent shell 1 through sealing glue.
The transparent shell 1 is internally provided with an infrared sealing plug 5, the infrared sealing plug 5 upwards supports the circuit board 2, and the infrared sealing plug 5 is fixed in the transparent shell 1 through sealing glue.
The liquid crystal support 4 is stuck in the transparent shell 1 through a first sealant 6; the circuit board 2, the liquid crystal screen 3, the infrared sealing plug 5 and the liquid crystal support 4 are fixedly packaged in the transparent shell 1 through the second sealing glue 7.
The transparent shell 1 is internally provided with a glue blocking rib 8, the glue blocking rib 8 is arranged around the periphery of the window of the transparent shell 1, the glue blocking rib 8 and the periphery area of the window of the transparent shell 1 are filled with sealant I6, and the sealant I is adhered with the liquid crystal bracket 4 around the liquid crystal window.
A groove 12 is formed in the transparent shell 1, and a strut 13 is arranged in the groove 12; a sealing plug boss 20 is arranged at the lower part of the infrared sealing plug 5, and a sealing plug fixing hole 18 and a sealing plug indicating lamp hole 19 are arranged at the bottom surface of the infrared sealing plug 5; the infrared sealing plug 5 is placed in the groove 12, the infrared sealing plug 5 is tightly clamped on the side wall of the groove 12 by means of the sealing plug boss 20, the sealing plug fixing hole 18 is inserted into the supporting column 13, and the indicator lamp of the circuit board 2 is placed in the sealing plug indicator lamp hole 19.
The inner side dimension of the upper surrounding 14 of the liquid crystal support 4 is larger than the outer side dimension of the glue blocking rib 8, a pinhole 15 is arranged on the upper surrounding 14 of the liquid crystal support 4, and a contact pin extending out of the liquid crystal screen 3 is inserted into the pinhole 15; the transparent shell 1 is provided with a side wall fixing block 16, the circuit board 2 is provided with a reserved hole, the side wall of the liquid crystal screen 3 is fixed in the side wall fixing block 16, and the supporting leg 17 is inserted into the reserved hole on the circuit board 2.
The transparent shell 1 is internally provided with a supporting beam 9, a clamping hook 11 and a fixing beam 10, the supporting beam 9 and the infrared sealing plug 5 together support the circuit board 2 upwards, the clamping hook 11 downwards presses the circuit board 2, and the fixing beam 10 prevents the circuit board 2 from rotating left and right.
The display of the liquid crystal display 3 is not affected by temperature change after the first sealant 6 is cured, and the first sealant 6 and the second sealant 7 do not react.
Firstly, the transparent shell 1 and the liquid crystal support 4 are connected together through the first sealant 6, and the transparent shell 1, the circuit board 2, the liquid crystal screen 3, the liquid crystal support 4 and the infrared sealing plug 5 are assembled together through the second sealant 7 again to form an integrated structure. The method comprises the following specific steps:
(1) the liquid crystal support 4 is buckled above the circuit board 2, pins extending out of the liquid crystal screen 3 are inserted into pinholes 15, supporting legs 17 are aligned with reserved holes of the circuit board 2, the side walls of the liquid crystal screen 3 are placed into side wall fixing blocks 16 to be buckled, and then the pins of the liquid crystal screen 3 are welded to the circuit board 2 to be fixed;
(2) firstly, filling sealant I6 around the glue blocking ribs 8 in the transparent shell 1, then placing the infrared sealing plug 5 in the groove 12 for fixing, fastening the assembled component in the step (1) in the transparent shell 1 by using the clamping hooks 11, and fixing the component with the transparent shell 1 through the sealant I6;
(3) and filling the second sealant 7 in the transparent shell 1, and completely immersing the circuit board 2 in the second sealant 7.
Claims (4)
1. A kind of glue-filled type liquid crystal display protective structure, characterized by that: comprises a transparent shell (1), a circuit board (2), a liquid crystal screen (3) and a liquid crystal bracket (4); the liquid crystal screen (3) is connected with the liquid crystal support (4) through a pin structure; the liquid crystal support (4) is stuck in the transparent shell (1); the circuit board (2) is connected with the transparent shell (1) through a clamping hook (11); the circuit board (2), the liquid crystal screen (3) and the liquid crystal support (4) are fixed in the transparent shell (1) through sealing glue.
2. The glue-filled type liquid crystal display protective structure according to claim 1, wherein: the infrared sealing plug (5) is further arranged in the transparent shell (1), the infrared sealing plug (5) upwards supports the circuit board (2), and the infrared sealing plug (5) is fixed in the transparent shell (1) through sealing glue.
3. The protective structure of a glue-filled lcd according to claim 1 or 2, wherein: glue blocking ribs (8) are arranged in the transparent shell (1), the glue blocking ribs (8) are arranged around the periphery of a window of the transparent shell (1), the glue blocking ribs (8) and the periphery area of the window of the transparent shell (1) are filled with sealant I (6), and the sealant I is adhered with the liquid crystal bracket (4) together around a liquid crystal window.
4. The protective structure of a glue-filled type liquid crystal display according to claim 2, wherein: a groove (12) is formed in the transparent shell (1), and a strut (13) is arranged in the groove (12); a sealing plug boss (20) is arranged at the lower part of the infrared sealing plug (5), and a sealing plug fixing hole (18) and a sealing plug indicating lamp hole (19) are arranged at the bottom surface of the infrared sealing plug (5); the infrared sealing plug (5) is placed in the groove (12), the infrared sealing plug (5) is tightly clamped on the side wall of the groove (12) by means of the interference of the sealing plug boss (20), the sealing plug fixing hole (18) is inserted into the support column (13), and the indicator lamp of the circuit board (2) is placed in the sealing plug indicator lamp hole (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223221860.7U CN219040002U (en) | 2022-12-02 | 2022-12-02 | Glue-pouring type liquid crystal display protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223221860.7U CN219040002U (en) | 2022-12-02 | 2022-12-02 | Glue-pouring type liquid crystal display protective structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219040002U true CN219040002U (en) | 2023-05-16 |
Family
ID=86314091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223221860.7U Active CN219040002U (en) | 2022-12-02 | 2022-12-02 | Glue-pouring type liquid crystal display protective structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219040002U (en) |
-
2022
- 2022-12-02 CN CN202223221860.7U patent/CN219040002U/en active Active
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