Heat dissipation rear shell of vehicle-mounted display

Abstract

The utility model discloses a heat dissipation rear shell of a vehicle-mounted display, which relates to the technical field of vehicle-mounted displays and comprises an outer shell, a display screen arranged at an opening of the outer shell, a circuit board fixedly connected to the inner side wall of the outer shell, and a mounting mechanism and a heat dissipation mechanism which are connected with the side wall of the outer shell, the mounting mechanism comprises a connecting plate fixedly connected to the outer side wall of the display screen, and a fixing bolt penetrating through the side wall of the outer shell and in threaded connection with the side wall of the outer shell; the heat dissipation mechanism comprises a heat conduction plate fixedly connected to the outer surface of the circuit board, a heat dissipation plate penetrating through the side wall of the outer shell, and an expansion hole formed in the outer side wall of the heat dissipation plate and used for expanding the contact area of the heat dissipation plate and air. According to the heat dissipation rear shell of the vehicle-mounted display, heat generated by the circuit board is transmitted to the heat dissipation plate through the heat conduction plate, and finally the heat is discharged through the heat dissipation plate, so that the heat dissipation effect of the display screen is greatly improved, and the circuit board is prevented from being in contact with outside air.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted displays, in particular to a heat dissipation rear shell of a vehicle-mounted display. Background Art

[0002] The car display is an important part of the car. With the continuous development of display technology, users have higher and higher requirements for the display performance of the car display. As a result, the power consumption and heat dissipation of the car display products are also increasing. At this time, if the heat emitted by the display cannot be discharged in time, it will cause the display to overheat, thereby causing damage to the display and affecting the service life of the display.

[0003] Generally, vehicle-mounted displays use ventilation holes to cool the internal heat-generating components. Such ventilation holes can promptly and effectively remove the heat inside the display, but on the other hand, the ventilation holes will also bring in dust and moisture from the outside, causing the internal components of the display to age faster and become prone to failure, greatly reducing the service life of the display. Utility Model Content

[0004] The main purpose of the utility model is to provide a heat dissipation rear shell for a vehicle-mounted display, which solves the problem that the ventilation holes will also bring in external dust and moisture, causing the internal components of the display to age faster and become prone to failure, thereby greatly reducing the service life of the display.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heat dissipation rear shell of a vehicle-mounted display comprises an outer shell, a display screen arranged at an opening of the outer shell, and a circuit board fixedly connected to an inner side wall of the outer shell, and also comprises a mounting mechanism and a heat dissipation mechanism connected to the side wall of the outer shell;

[0007] The mounting mechanism comprises a connecting plate fixedly connected to the outer side wall of the display screen, and a fixing bolt penetrating through the side wall of the outer shell and threadedly connected to the side wall of the outer shell;

[0008] The heat dissipation mechanism includes a heat conducting plate fixedly connected to the outer surface of the circuit board, a heat dissipation plate penetrating the side wall of the outer shell, and an expansion hole opened on the outer side wall of the heat dissipation plate for expanding the contact area between the heat dissipation plate and the air.

[0009] Preferably, the mounting mechanism further comprises a reset spring fixedly connected to the inner wall of the outer shell, a transmission ring fixedly connected to the top of the reset spring, a push block fixedly connected to the inner wall of the transmission ring, and a vertical hole opened in the inner wall of the outer shell.

[0010] Preferably, the mounting mechanism further comprises a first connecting member and a second connecting member provided on the inner side wall of the vertical hole;

[0011] The first connecting member includes a horizontal hole opened in the inner wall of the vertical hole, a fixing ring fixedly connected to the inner wall of the horizontal hole, a connecting spring fixedly connected to the side wall of the fixing ring, a transmission block fixedly connected to the end face of the connecting spring, and a locking rod fixedly connected to the end face of the transmission block.

[0012] Preferably, the mounting mechanism further comprises a locking groove provided on the outer side wall of the connecting plate, the second connecting member has the same structural component as the first connecting member, and the two are symmetrically arranged about the central axis of the vertical groove.

[0013] Preferably, the heat dissipation mechanism also includes a rectangular hole opened on the top of the outer shell, a spring groove opened on the inner wall of the rectangular hole, an electromagnet embedded in the bottom of the spring groove, a driving spring fixedly connected to the bottom of the spring groove, and a locking block fixedly connected to the end face of the driving spring.

[0014] Preferably, the heat dissipation mechanism further comprises a right-angle plate fixedly connected to the inner side wall of the outer shell, and a control switch fixedly installed on the top of the right-angle plate.

[0015] Preferably, there are a plurality of heat dissipation mechanisms, and the plurality of heat dissipation mechanisms are linearly distributed with equal intervals.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. In the utility model, the outer shell is sleeved on the outer surface of the connecting plate, and the opening of the outer shell is abutted against the outer side wall of the display screen, so that the locking groove is opposite to the horizontal hole, and then the fixing bolt is rotated to drive the push block to move downward, and the transmission ring compresses the reset spring. At this time, the lower half of the push block will push the transmission block, so that the transmission block compresses the connecting spring and drives the locking rod to slide inside the horizontal hole until one of the locking rods is inserted into the locking groove, thereby realizing the connection between the outer shell and the display screen, and by observing the position of the other locking rod, it can be judged whether the fixing bolt is installed in place.

[0018] 2. In the utility model, the heat sink is inserted into the rectangular hole until the bottom of the heat sink is abutted against the top of the right-angle plate. At this time, the heat sink is in contact with the heat conductive plate, and the control switch is in a pressed state. At this time, the card slot will be directly opposite to the spring slot, and the control switch will cut off the power to the electromagnet. At this time, the engaging block will be inserted into the card slot at one end under the action of the driving spring, thereby fixing the heat sink. Through the above operation, the heat generated by the circuit board can be transported from the heat conductive plate to the heat sink, and finally the heat is discharged by the heat sink, thereby greatly improving the heat dissipation effect of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure of A;

[0023] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of B.

[0024] In the figure: 1. outer shell; 2. display screen; 3. circuit board; 401. connecting plate; 402. fixing bolt; 403. reset spring; 404. transmission ring; 405. pushing block; 406. fixing ring; 407. connecting spring; 408. transmission block; 409. locking rod; 501. heat conducting plate; 502. heat dissipation plate; 503. expansion hole; 504. electromagnet; 505. driving spring; 506. engaging block; 507. right-angle plate; 508. control switch. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] Embodiment 1: Figure 1-5 As shown, a heat dissipation rear shell of a vehicle-mounted display comprises an outer shell 1, a display screen 2 arranged at an opening of the outer shell 1, and a circuit board 3 fixedly connected to the inner side wall of the outer shell 1, wherein the circuit board 3 is electrically connected to the display screen 2, and further comprises a mounting mechanism and a heat dissipation mechanism connected to the side wall of the outer shell 1;

[0027] The mounting mechanism includes a connecting plate 401 fixedly connected to the outer wall of the display screen 2, and a fixing bolt 402 penetrating through the side wall of the outer shell 1 and threadedly connected to the side wall of the outer shell 1;

[0028] The heat dissipation mechanism includes a heat conducting plate 501 fixedly connected to the outer surface of the circuit board 3, a heat dissipation plate 502 penetrating the side wall of the outer shell 1, and an expansion hole 503 opened on the outer wall of the heat dissipation plate 502 for expanding the contact area between the heat dissipation plate 502 and the air.

[0029] The mounting mechanism also includes a return spring 403 fixedly connected to the inner wall of the outer shell 1, a transmission ring 404 fixedly connected to the top of the return spring 403, a push block 405 fixedly connected to the inner wall of the transmission ring 404, and a vertical hole opened on the inner wall of the outer shell 1, wherein the central axis of the push block 405 coincides with the central axis of the fixing bolt 402, and the lower half of the push block 405 slides inside the vertical hole.

[0030] The mounting mechanism also includes a first connecting member and a second connecting member provided on the inner side wall of the vertical hole;

[0031] The first connecting member includes a horizontal hole opened on the inner side wall of the vertical hole, a fixing ring 406 fixedly connected to the inner side wall of the horizontal hole, a connecting spring 407 fixedly connected to the side wall of the fixing ring 406, a transmission block 408 fixedly connected to the end face of the connecting spring 407, and a locking rod 409 fixedly connected to the end face of the transmission block 408, wherein the transmission block 408 and the locking rod 409 are respectively located on both sides of the fixing ring 406, and the transmission block 408 extends into the vertical hole under the action of the connecting spring 407.

[0032] The installation mechanism also includes a locking groove opened on the outer wall of the connecting plate 401. The second connecting member has the same structure as the first connecting member, and the two are symmetrically arranged about the central axis of the vertical groove.

[0033] By sleeve-fitting the outer shell 1 on the outer surface of the connecting plate 401, and making the opening of the outer shell 1 abut against the outer side wall of the display screen 2, so that the locking groove is opposite to the horizontal hole, then rotating the fixing bolt 402, so that it drives the push block 405 to move downward, and makes the transmission ring 404 compress the reset spring 403, at this time, the lower half of the push block 405 will push the transmission block 408, so that the transmission block 408 compresses the connecting spring 407, and drives the locking rod 409 to slide inside the horizontal hole, until one of the locking rods 409 is inserted into the locking groove, so as to realize the connection between the outer shell 1 and the display screen 2, and by observing the position of the other locking rod 409, it can be judged whether the fixing bolt 402 is installed in place.

[0034] Embodiment 2: Figure 1-5 As shown, a heat dissipation rear shell of a vehicle-mounted display comprises an outer shell 1, a display screen 2 arranged at an opening of the outer shell 1, and a circuit board 3 fixedly connected to the inner side wall of the outer shell 1, wherein the circuit board 3 is electrically connected to the display screen 2, and further comprises a mounting mechanism and a heat dissipation mechanism connected to the side wall of the outer shell 1;

[0035] The mounting mechanism includes a connecting plate 401 fixedly connected to the outer wall of the display screen 2, and a fixing bolt 402 penetrating through the side wall of the outer shell 1 and threadedly connected to the side wall of the outer shell 1;

[0036] The heat dissipation mechanism includes a heat conducting plate 501 fixedly connected to the outer surface of the circuit board 3, a heat dissipation plate 502 penetrating the side wall of the outer shell 1, and an expansion hole 503 opened on the outer wall of the heat dissipation plate 502 for expanding the contact area between the heat dissipation plate 502 and the air.

[0037] The heat dissipation mechanism also includes a rectangular hole opened on the top of the outer shell 1, a spring groove opened on the inner wall of the rectangular hole, an electromagnet 504 embedded in the bottom of the spring groove, a driving spring 505 fixedly connected to the bottom of the spring groove, and a locking block 506 fixedly connected to the end face of the driving spring 505, wherein the locking block 506 is made of ferromagnetic material, and when the electromagnet 504 is energized and has magnetic force, it will adsorb the locking block 506, so that it is completely retracted into the interior of the spring groove and the driving spring 505 is extended, wherein the outer wall of the heat dissipation plate 502 is provided with a locking groove matching the outer diameter size of the locking block 506.

[0038] The heat dissipation mechanism further includes a right-angle plate 507 fixedly connected to the inner wall of the outer shell 1 , and a control switch 508 fixedly installed on the top of the right-angle plate 507 , wherein the control switch 508 is used to control the electromagnet 504 .

[0039] There are several heat dissipation mechanisms, and the heat dissipation mechanisms are linearly distributed with equal intervals.

[0040] When the outer shell 1 is installed, the heat sink 502 is inserted into the rectangular hole until the bottom of the heat sink 502 is abutted against the top of the right-angle plate 507. At this time, the heat sink 502 is in contact with the heat conducting plate 501, and the control switch 508 is in a pressed state. At this time, the card slot will be opposite to the spring slot, and the control switch 508 will cut off the power to the electromagnet 504. At this time, the locking block 506 will be inserted into the card slot at one end under the action of the driving spring 505, thereby fixing the heat sink 502. Through the above operation, the heat generated by the circuit board 3 can be transported from the heat conducting plate 501 to the heat sink 502, and finally the heat is discharged by the heat sink 502, thereby greatly improving the heat dissipation effect of the display screen 2, reducing the probability of overheating and damage of the display screen 2, and extending the service life of the display screen 2. The heat sink 502 is a detachable structure, which is convenient for replacement or cleaning.

Claims

1. A heat dissipation rear shell of a vehicle-mounted display, comprising an outer shell (1), a display screen (2) arranged at an opening of the outer shell (1), and a circuit board (3) fixedly connected to the inner wall of the outer shell (1), characterized in that: It also includes a mounting mechanism and a heat dissipation mechanism connected to the side wall of the outer shell (1); The mounting mechanism comprises a connecting plate (401) fixedly connected to the outer wall of the display screen (2), and a fixing bolt (402) penetrating the side wall of the outer shell (1) and threadedly connected to the side wall of the outer shell (1); The heat dissipation mechanism comprises a heat conducting plate (501) fixedly connected to the outer surface of the circuit board (3), a heat dissipation plate (502) penetrating the side wall of the outer shell (1), and an expansion hole (503) provided on the outer side wall of the heat dissipation plate (502) for expanding the contact area between the heat dissipation plate (502) and the air.

2. The heat dissipation rear housing of a vehicle-mounted display according to claim 1, characterized in that: The mounting mechanism further comprises a return spring (403) fixedly connected to the inner wall of the outer shell (1), a transmission ring (404) fixedly connected to the top of the return spring (403), a push block (405) fixedly connected to the inner wall of the transmission ring (404), and a vertical hole opened in the inner wall of the outer shell (1).

3. The heat dissipation rear housing of a vehicle-mounted display according to claim 2, characterized in that: The mounting mechanism further includes a first connecting member and a second connecting member disposed on the inner side wall of the vertical hole; The first connecting member comprises a horizontal hole formed in the inner side wall of the vertical hole, a fixing ring (406) fixedly connected to the inner side wall of the horizontal hole, a connecting spring (407) fixedly connected to the side wall of the fixing ring (406), a transmission block (408) fixedly connected to the end face of the connecting spring (407), and a locking rod (409) fixedly connected to the end face of the transmission block (408).

4. The heat dissipation rear housing of a vehicle-mounted display according to claim 3, characterized in that: The installation mechanism also includes a locking groove formed on the outer side wall of the connecting plate (401); the second connecting member has the same structure as the first connecting member, and the two are symmetrically arranged about the central axis of the vertical groove.

5. The heat dissipation rear housing of a vehicle-mounted display according to claim 4, characterized in that: The heat dissipation mechanism also includes a rectangular hole formed on the top of the outer shell (1), a spring groove formed on the inner wall of the rectangular hole, an electromagnet (504) embedded in the bottom of the spring groove, a driving spring (505) fixedly connected to the bottom of the spring groove, and a locking block (506) fixedly connected to the end surface of the driving spring (505).

6. The heat dissipation rear housing of a vehicle-mounted display according to claim 5, characterized in that: The heat dissipation mechanism further comprises a right-angle plate (507) fixedly connected to the inner side wall of the outer shell (1), and a control switch (508) fixedly mounted on the top of the right-angle plate (507).

7. The heat dissipation rear housing of a vehicle-mounted display according to claim 6, characterized in that: There are several heat dissipation mechanisms, and the several heat dissipation mechanisms are linearly distributed with equal intervals.

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