CN215678974U

CN215678974U - SMT liquid crystal display module

Info

Publication number: CN215678974U
Application number: CN202122222300.2U
Authority: CN
Inventors: 余幸福; 刘权
Original assignee: Hangzhou Byron Electronic Technology Co ltd
Current assignee: Hangzhou Byron Electronic Technology Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-01-28
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses an SMT liquid crystal display module, which comprises a frame: the inner wall of frame is provided with heat radiation fins, and is provided with the PCB board on the heat radiation fins, be provided with SMT paster and backlight on the PCB board respectively, and be provided with the LCD screen on the backlight, the inside of frame is provided with the cooling tube spare of multistage formula structure, and the open end of cooling tube spare is provided with the end cap. According to the liquid crystal display module, the cooling space with uniformity and large range can be formed in the frame through the combined structure of the cooling pipe fitting and the radiating fins, so that heat on the liquid crystal display part can be absorbed and cooled quickly and efficiently, the working temperature in the liquid crystal display module is effectively reduced, the phenomenon of local high temperature in the liquid crystal display module is avoided, and the operation safety and stability of the liquid crystal display module are further improved.

Description

SMT liquid crystal display module

Technical Field

The utility model relates to the technical field of electronic products, in particular to an SMT (surface mount technology) liquid crystal display module.

Background

With the development of digital technology, liquid crystal display products have been widely used in various layers of daily life, and the fineness of liquid crystal display, the thinness and light weight of display panels, and the color display characteristics of screens have been gradually improved. The liquid crystal display panel is an important part of a liquid crystal display product, and is applied thereto by an electric signal to control whether light passes therethrough. However, the liquid crystal itself does not emit light, and a light source is required to continuously provide light to enter the display screen, so that image display can be realized. In a liquid crystal display product, a backlight module is usually selected to provide light, and liquid crystal of a liquid crystal panel adjusts the light from the backlight module under the action of an electric field to display an image.

Chinese patent publication No.: CN202256952U discloses a wide visual angle SMT liquid crystal display module, including LCD display screen, LED backlight, PCB board, SMT IC chip, FFC connector, the LCD display screen passes through the metal pin and is connected with PCB board, and the LED backlight sets up in LCD display screen below, and SMT IC chip and FFC connector set up on PCB board, and SMT IC chip passes through the FFC connector and is connected with external control chip MCU, the LCD display screen adopts VA vertical orientation liquid crystal display structure.

However, the conventional liquid crystal display module has a relatively small heat dissipation range, and cannot perform uniform and efficient heat dissipation and cooling treatment on heat generated in the liquid crystal display module, so that a local high temperature phenomenon is easily generated in the liquid crystal display module, and the operation safety of the liquid crystal display module is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an SMT liquid crystal display module which improves the dissipation efficiency of heat in the liquid crystal display module and enhances the operation safety.

In order to achieve the above purpose, the utility model provides the following technical scheme: an SMT liquid crystal display module comprising a frame:

the inner wall of the frame is provided with heat dissipation fins, and the heat dissipation fins are provided with a PCB (printed Circuit Board);

the PCB is respectively provided with an SMT patch and a backlight source, and the backlight source is provided with an LCD screen;

the inside of frame is provided with the cooling tube spare of multistage formula structure, and the open end of cooling tube spare is provided with the end cap.

As a further description of the above technical solution:

the cooling pipe fitting comprises a heat absorption pipe arranged in the frame, and joint pipes matched with the plugs are arranged at two ends of the heat absorption pipe.

As a further description of the above technical solution:

the device also comprises a clamping component;

the centre gripping subassembly is including setting up on the PCB board and being located the mounting bracket in backlight and LCD screen outside, rotates on the mounting bracket to be connected with the supporting rod of contradicting with the LCD screen.

As a further description of the above technical solution:

the end part of the clamping rod is rotatably connected with a sleeve, and an insulating sheet is arranged on the outer side of the sleeve.

As a further description of the above technical solution:

the inner wall of the frame is provided with a cushion block, an assembly groove is formed in the cushion block, and an assembly rod matched with the assembly groove is arranged on the PCB.

As a further description of the above technical solution:

and a spring elastically connected with the assembling rod is arranged on the inner wall of the assembling groove.

As a further description of the above technical solution:

also includes a housing;

the corner of shell is equipped with the locating hole, and goes up the locating hole internal thread and run through and be provided with fastening bolt, and fastening bolt and the lower constant head tank threaded connection on the frame.

In the technical scheme, the SMT liquid crystal display module provided by the utility model has the following beneficial effects:

this liquid crystal display module is through the cooling pipe fitting that sets up and heat radiation fins's integrated configuration, can form even and cooling space on a large scale in the frame for heat on the liquid crystal display part can be absorbed and cooled by quick and efficient, thereby the effectual operating temperature who reduces in the liquid crystal display module avoids taking place the phenomenon of local high temperature in the liquid crystal display module, and then has improved liquid crystal display module's operation safety and stability nature.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic structural diagram of an SMT liquid crystal display module according to an embodiment of the utility model;

FIG. 2 is a schematic side view of a clamping assembly according to an embodiment of the present invention;

FIG. 3 is a partial structural diagram of the interior of the joint between the frame and the cooling pipe according to the embodiment of the present invention;

fig. 4 is a partial structural schematic view of a joint between a mounting rod and a cushion block according to an embodiment of the present invention.

Description of reference numerals:

1. a housing; 11. an upper positioning hole; 2. fastening a bolt; 3. an LCD screen; 4. a backlight source; 5. a PCB board; 51. assembling a rod; 52. SMT pasting; 53. a clamping assembly; 531. a mounting frame; 532. a clamping rod; 533. a sleeve; 534. an insulating sheet; 6. a frame; 61. a lower positioning groove; 62. a plug; 63. cooling the pipe fitting; 631. a heat absorbing tube; 632. a joint pipe; 64. heat dissipation fins; 65. cushion blocks; 651. assembling a groove; 652. a spring.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1, an SMT liquid crystal display module includes a frame 6:

the inner wall of the frame 6 is provided with a heat radiation fin 64, and the heat radiation fin 64 is provided with a PCB 5;

the PCB 5 is respectively provided with an SMT paster 52 and a backlight 4, and the backlight 4 is provided with an LCD screen 3;

the inside of the frame 6 is provided with a cooling pipe 63 with a multi-section structure, and an open end of the cooling pipe 63 is provided with a plug 62.

In this embodiment, add the cooling medium of inertia in the cooling tube 63 for cooling medium can be even and on a large scale store in frame 6, and block up the both ends opening shutoff of cooling tube 63 with end cap 62, make the heat that PCB board 5, SMT paster 52, backlight 4 and LCD screen 3 work produced can be absorbed by comprehensive and efficient, can reduce the operating temperature in the frame 6, avoid taking place the phenomenon of local high temperature in the liquid crystal display module, and then improved liquid crystal display module's operation safety and stability.

As shown in fig. 3, the cooling pipe 63 includes a heat absorbing pipe 631 disposed in the frame 6, the two ends of the heat absorbing pipe 631 are respectively provided with a connector 632 adapted to the plug 62, and the heat absorbing pipe 631 has a multi-section U-shaped structure, so that the heat absorbing pipe can be distributed in the frame 6 in a large range, and therefore the inert cooling medium can be uniformly and comprehensively stored in the frame 6, that is, the heat generated in the liquid crystal display module can be efficiently absorbed.

As shown in fig. 1 and fig. 2, the clamping device 53 further includes a clamping device 53, the clamping device 53 includes a mounting frame 531 disposed on the PCB 5 and located outside the backlight 4 and the LCD screen 3, a clamping rod 532 abutting against the LCD screen 3 is rotatably connected to the mounting frame 531, after the backlight 4 and the LCD screen 3 are mounted on the PCB 5, the clamping rod 532 is rotated to move downward in the mounting frame 531, and the clamping rod contacts the LCD screen 3 until abutting against the LCD screen 3, so that a stable clamping independent effect can be achieved on the backlight 4 and the LCD screen 3.

As shown in fig. 2, the end of the clamping rod 532 is rotatably connected with the sleeve 533, and the insulating sheet 534 is disposed outside the sleeve 533, when the clamping rod 532 contacts the LCD panel 3 and continues to rotate, the rotational driving force on the clamping rod 532 can be converted into a linear driving force under the action of the sleeve 533, so that the insulating sheet 534 continues to abut against the LCD panel 3, and the clamping and fixing effect on the LCD panel 3 can be achieved, and meanwhile, the leakage phenomenon can be avoided.

As shown in fig. 1 and 4, the inner wall of the frame 6 is provided with a spacer 65, the spacer 65 is provided with an assembling groove 651, the PCB 5 is provided with an assembling rod 51 adapted to the assembling groove 651, and the positions of the PCB 5 and the frame 6 can be assembled and fixed by the assembling connection of the assembling rod 51 and the assembling groove 651, so that the connection stability of the two is improved.

As shown in fig. 4, the inner wall of the assembling groove 651 is provided with a spring 652 elastically connected to the assembling rod 51, which can elastically support the assembling rod 51, thereby cushioning the pressure applied to the PCB 5 during installation and preventing the PCB 5 from bending or even being damaged due to the large pressure.

As shown in fig. 1, the portable electronic device further comprises a housing 1, an upper positioning hole 11 is formed in a corner of the housing 1, a fastening bolt 2 penetrates through the inner thread of the upper positioning hole 11, the fastening bolt 2 is in threaded connection with a lower positioning groove 61 on the frame 6, the housing 1 can be stably installed on the frame 6, and a sealing protection effect is achieved on parts in the frame 6.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. An SMT liquid crystal display module comprising a frame (6), characterized in that:

the inner wall of the frame (6) is provided with heat dissipation fins (64), and the heat dissipation fins (64) are provided with a PCB (5);

the PCB (5) is respectively provided with an SMT patch (52) and a backlight source (4), and the backlight source (4) is provided with an LCD screen (3);

the cooling pipe fitting (63) with a multi-section structure is arranged in the frame (6), and a plug (62) is arranged at the opening end of the cooling pipe fitting (63).

2. An SMT liquid crystal display module according to claim 1, wherein: the cooling pipe fitting (63) comprises a heat absorption pipe (631) arranged in the frame (6), and joint pipes (632) matched with the plugs (62) are arranged at two ends of the heat absorption pipe (631).

3. An SMT liquid crystal display module according to claim 1, wherein: further comprising a clamping assembly (53);

centre gripping subassembly (53) are including setting up on PCB board (5) and being located backlight (4) and LCD screen (3) outside mounting bracket (531), rotate on mounting bracket (531) and be connected with clamping rod (532) of contradicting with LCD screen (3).

4. An SMT liquid crystal display module according to claim 3, wherein: the end part of the clamping rod (532) is rotatably connected with a sleeve (533), and an insulating sheet (534) is arranged on the outer side of the sleeve (533).

5. An SMT liquid crystal display module according to claim 1, wherein: the inner wall of the frame (6) is provided with a cushion block (65), an assembling groove (651) is formed in the cushion block (65), and an assembling rod (51) matched with the assembling groove (651) is arranged on the PCB (5).

6. An SMT liquid crystal display module according to claim 5, wherein: the inner wall of the assembly groove (651) is provided with a spring (652) elastically connected with the assembly rod (51).

7. An SMT liquid crystal display module according to claim 1, wherein: also comprises a shell (1);

the corner of shell (1) is equipped with locating hole (11), and goes up locating hole (11) internal thread and run through and be provided with fastening bolt (2), and fastening bolt (2) and lower constant head tank (61) threaded connection on frame (6).