High-temperature-resistant PCBA (Printed Circuit Board Assembly) mainboard

Abstract

The utility model discloses a high temperature resistant PCBA mainboard, which comprises an installation box and a cover plate, the PCBA mainboard is arranged in the installation box, a protection assembly is arranged above the installation box, a heat dissipation assembly capable of enabling the PCBA mainboard to uniformly dissipate heat is arranged on the cover plate, and the heat dissipation assembly comprises a movable window, a dustproof net, a top bin, a motor, a limiting groove, a limiting block, a heat dissipation fan and a screw rod. The movable window is formed in the mounting box and the cover plate, the dustproof net is arranged on the inner wall of the movable window, the top bin is formed in the cover plate, the motor is arranged in the top bin, the limiting grooves are formed in the inner wall of the movable window, the limiting blocks are slidably connected with the inner walls of the limiting grooves, the cooling fan is arranged between the limiting blocks, and the lead screw is coaxially connected with an output shaft of the motor through a coupler. And the other end penetrates through and is rotationally connected with the inner wall of the movable window. According to the technical scheme, the purpose of uniform heat dissipation of the high-temperature-resistant PCBA mainboard can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PCBA mainboard, especially a high temperature resistant PCBA mainboard. BACKGROUND

[0002] Printed circuit board, also known as "printed circuit board, printed wiring board, commonly uses the English abbreviation PCB, is an important electronic component, is the support of electronic components, is the provider of electronic component circuit connection, because it is made of electronic printing technology, is called "printed" circuit board, before the emergence of printed circuit board, the interconnection between electronic components is directly connected by wire to form a complete circuit, and the circuit panel only exists as an effective experimental tool, and the printed circuit board has become an absolute dominant position in the electronic industry.

[0003] According to Chinese patent application number CN202222583828.7 high reliability high temperature resistant PCBA mainboard, including PCBA mainboard and the installation box for installing PCBA mainboard, the PCBA mainboard is installed for the heat conduction heat conduction assembly;The heat conduction assembly includes;Mounting hole, mounting hole is set up on PCBA mainboard, and annular heat conduction pad is installed on the inner wall of mounting hole;Heat conduction bolt, the outer wall of heat conduction bolt is connected with the inner wall of mounting hole, the inner wall of annular heat conduction pad;And heat conduction component, heat conduction component is installed below PCBA mainboard, and the top of heat conduction component is connected with the bottom of heat conduction bolt, the utility model discloses PCBA mainboard's mainboard internal accumulation heat is conducted to annular heat conduction pad through mounting hole, then is transmitted to heat conduction bolt by annular heat conduction pad, and then is conducted to heat conduction component by heat conduction bolt, increases the heat dissipation area, improves the heat dissipation efficiency, the above is through two sides and exports high temperature, and the middle part of PCBA mainboard is relatively high in temperature, which leads to uneven heat dissipation. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a high temperature resistant PCBA mainboard, which aims to solve the technical problems of uneven heat dissipation of the prior art.

[0005] To achieve the above purpose, the high temperature resistant PCBA mainboard provided by the utility model comprises a mounting box and a cover plate, the inside of the mounting box is provided with a PCBA mainboard, the upper side of the mounting box is provided with a protection assembly, and the cover plate is provided with a heat dissipation assembly that can evenly dissipate heat of the PCBA mainboard.

[0006] The heat dissipation assembly comprises a movable window, a dust screen, a top bin, a motor, a limiting groove, a limiting block, a heat dissipation fan and a lead screw, the movable window is arranged on the mounting box and the cover plate, the dust screen is arranged on the inner wall of the movable window, the top bin is arranged in the interior of the cover plate, the motor is arranged in the interior of the top bin, the limiting groove is arranged on the inner wall of the movable window, the limiting block is in sliding connection with the inner wall of the limiting groove, the heat dissipation fan is arranged between the limiting blocks, the lead screw is coaxially connected with the output shaft of the motor through a shaft coupling, and the other end penetrates through and is rotationally connected with the inner wall of the movable window.

[0007] Optionally, the number of the dust screens is multiple, and intervals are arranged between the dust screens.

[0008] Optionally, the heat dissipation fan is threadedly connected with the lead screw.

[0009] Optionally, the protection assembly comprises a cover plate, a groove, a first magnetic strip and a second magnetic strip, the cover plate is hingedly connected with the top of the mounting box, the groove is arranged on the top of the cover plate, the first magnetic strip is arranged on the bottom of the cover plate, and the second magnetic strip is arranged on the inner bottom wall of the groove.

[0010] Optionally, the first magnetic strip and the second magnetic strip are of opposite polarities and are attracted to each other.

[0011] Optionally, a plurality of mounting legs are arranged on the bottom of the mounting box.

[0012] The technical scheme of the utility model has the following beneficial effects: when it is needed to uniformly dissipate heat of the high-temperature-resistant PCBA mainboard, the motor and the heat dissipation fan are started, the lead screw drives the heat dissipation fan to move back and forth through the limiting of the limiting groove and the limiting block, the high temperature emitted by the high-temperature-resistant PCBA mainboard in the mounting box is blown out through the movable window in the cover plate, then the normal temperature outside is introduced into the mounting box through the movable window at the bottom of the mounting box, the air in the mounting box flows rapidly, and thus the PCBA mainboard in operation is uniformly cooled, and the heat dissipation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structure shown in the drawings without creative labor.

[0014] Figure 1 It is an overall structure schematic view of the high-temperature-resistant PCBA mainboard in an embodiment of the utility model.

[0015] Figure 2 A front view of the high-temperature-resistant PCBA mainboard according to an embodiment of the present application;

[0016] Figure 3 A Figure 2 enlarged view of position A in FIG.

[0017] Figure 4 A Figure 2 enlarged view of position B in FIG.

[0018] Figure 5 A plan view of the high-temperature-resistant PCBA mainboard according to an embodiment of the present application.

[0019] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings.

[0020] FIG. 1 is a mounting box; 2 is a PCBA mainboard; 3 is a protection assembly; 31 is a cover plate; 32 is a groove; 33 is a first magnetic strip; 34 is a second magnetic strip; 4 is a heat dissipation assembly; 41 is a movable window; 42 is a dust screen; 43 is a top bin; 44 is a motor; 45 is a limiting groove; 46 is a limiting block; 47 is a heat dissipation fan; 48 is a lead screw. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and the directional indications will change accordingly when the specific posture changes.

[0023] In addition, the technical solutions of each embodiment can be combined with each other, but the combination must be based on the fact that it can be realized by those skilled in the art, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0024] The present application provides a high-temperature-resistant PCBA mainboard.

[0025] For example, Figures 1 to 5As shown in the utility model one embodiment, the high temperature resistant PCBA mainboard, including installation box 1 and cover plate 31, the inside of installation box 1 is equipped with PCBA mainboard 2, the top of installation box 1 is equipped with protection assembly 3, cover plate 31 is equipped with the heat dissipation assembly 4 that can make PCBA mainboard 2 evenly radiate heat,

[0026] The heat dissipation assembly 4 includes movable window 41, dust screen 42, top bin 43, motor 44, limiting groove 45, limiting block 46, heat dissipation fan 47 and lead screw 48, movable window 41 is opened in installation box 1 and cover plate 31, dust screen 42 is equipped on the inner wall of movable window 41, top bin 43 is opened in the inside of cover plate 31, motor 44 is equipped in the inside of top bin 43, limiting groove 45 is opened in the inner wall of movable window 41, limiting block 46 is slidably connected with the inner wall of limiting groove 45, heat dissipation fan 47 is equipped between limiting block 46, lead screw 48 is coaxially connected with the output shaft of motor 44 through shaft coupling, and the other end penetrates and is rotationally connected with the inner wall of movable window 41.

[0027] Specifically, the number of dust screens 42 is multiple, and is provided with intervals, preferably, in the embodiment, the number of dust screens 42 is two, which facilitates dustproof and insect prevention of the bottom of installation box 1 and the top of cover plate 31.

[0028] Specifically, the heat dissipation fan 47 is threadedly connected with the lead screw 48, which facilitates the reciprocating adjustment of the heat dissipation fan 47 driven by the lead screw 48.

[0029] Specifically, the protection assembly 3 includes cover plate 31, groove 32, first magnetic stripe 33 and second magnetic stripe 34, the top of cover plate 31 is hingedly connected with the top of installation box 1, the groove 32 is opened in the top of cover plate 31, the first magnetic stripe 33 is arranged on the bottom of cover plate 31, and the second magnetic stripe 34 is arranged on the inner bottom wall of the groove 32.

[0030] Specifically, the first magnetic stripe 33 and the second magnetic stripe 34 are attracted to each other, the first magnetic stripe 33 and the second magnetic stripe 34 fix and limit the installation box 1 and the cover plate 31, and the first magnetic stripe 33 and the second magnetic stripe 34 can be separated under a larger repulsive force.

[0031] Specifically, the bottom of installation box 1 is provided with mounting legs, and the number of mounting legs is multiple, preferably, in the embodiment, the number of mounting legs is four, which facilitates the formation of convection between the movable window 41 at the bottom of installation box 1 and the movable window 41 at the top of cover plate 31, and facilitates the air flow in the inside of installation box 1.

[0032] Specifically, the working principle and use process of the utility model are as follows:

[0033] When the high-temperature-resistant PCBA mainboard 2 needs to be uniformly cooled, the motor 44 and the cooling fan 47 are started, the lead screw 48 drives the cooling fan 47 to move back and forth through the limiting of the limiting groove 45 and the limiting block 46, and the high temperature emitted by the high-temperature-resistant PCBA mainboard 2 in the mounting box 1 is blown out from the movable window 41 in the cover plate 31, and then the normal temperature outside is made to pass through the movable window 41 at the bottom of the mounting box 1 to the inside, so that the air in the inside flows quickly, so that the working PCBA mainboard 2 is uniformly cooled.

[0034] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A high-temperature-resistant PCBA mainboard, characterized in that, Including installation box (1) and cover plate (31), the inside of installation box (1) is equipped with PCBA mainboard (2), the top of installation box (1) is equipped with protection assembly (3), the cover plate (31) is equipped with the heat dissipation assembly (4) that can make PCBA mainboard (2) evenly radiate heat; The heat dissipation assembly (4) includes movable window (41), dust screen (42), top warehouse (43), motor (44), limiting groove (45), limiting block (46), heat dissipation fan (47) and lead screw (48), movable window (41) is opened in installation box (1) and cover plate (31), dust screen (42) is located in the inner wall of movable window (41), top warehouse (43) is opened in the inside of cover plate (31), motor (44) is located in the inside of top warehouse (43), limiting groove (45) is opened in the inner wall of movable window (41), limiting block (46) is slidably connected with the inner wall of limiting groove (45), heat dissipation fan (47) is located between limiting block (46), lead screw (48) is coaxially connected with the output shaft of motor (44) through shaft coupling, and the other end penetrates and is rotatably connected with the inner wall of movable window (41).

2. The high temperature resistant PCBA mainboard according to claim 1, characterized in that, The number of dust screen (42) is multiple, and is provided with interval.

3. The high temperature resistant PCBA mainboard according to claim 1, characterized in that, The heat dissipation fan (47) is threadedly connected with the lead screw (48).

4. The high temperature resistant PCBA mainboard according to claim 1, characterized in that, The protection assembly (3) includes cover plate (31), groove (32), first magnetic stripe (33) and second magnetic stripe (34), the top of cover plate (31) is hinged with the top of installation box (1), the groove (32) is opened in the top of cover plate (31), the first magnetic stripe (33) is located in the bottom of cover plate (31), and the second magnetic stripe (34) is located in the inner bottom wall of groove (32).

5. The high temperature resistant PCBA mainboard according to claim 4, characterized in that, The first magnetic stripe (33) and the second magnetic stripe (34) are attracted to each other.

6. The high temperature resistant PCBA mainboard according to claim 1, characterized in that, The bottom of installation box (1) is provided with mounting leg, and the number of mounting leg is multiple.

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