Heat dissipation structure of respirator circuit assembly board

Abstract

The utility model belongs to the technical field of medical equipment, and particularly discloses a heat dissipation structure of a respirator circuit assembly board, which is characterized in that a shell is provided with an upper chamber and a lower chamber which are communicated with each other, a partition plate is arranged between the upper chamber and the lower chamber, and gas circulation channels are arranged between the upper chamber and the lower chamber and between the shell and the outside; the power supply circuit assembly board is mounted in the lower cavity; the main control circuit assembly board and the display screen circuit assembly board are both installed in the upper cavity, the main control circuit assembly board is installed above the partition plate, the display screen circuit assembly board is installed on one inner side of the shell, and the main control circuit assembly board and the display screen circuit board are arranged at a prefabricated angle. By means of the structure, the size of the breathing machine can be miniaturized, heat energy of the circuit assembly board installed in the breathing machine can be dissipated in time, normal use of the breathing machine is prevented from being affected by too high local temperature, and the service life of the breathing machine is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a heat dissipation structure of a ventilator circuit assembly board. Background Art

[0002] In modern clinical medicine, ventilators are crucial medical devices that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives. They are widely used in hospitals and homes. With technological advancements and to facilitate portability or placement within limited spaces, ventilators have become increasingly smaller in size, while increasing their functionality and requiring more components.

[0003] The internal space layout of a multifunctional miniaturized ventilator is very compact. To facilitate installation and layout, high-heat-generating components such as the power supply and mainboard are often stacked together inside the ventilator. Therefore, during use, the electronic components on the power supply and mainboard generate heat together during operation, and radiate heat to each other, which can easily lead to abnormal local temperatures inside the ventilator. Although most ventilators are designed with internal heat dissipation measures, the limited size of the entire device causes the power supply and mainboard electronic components to be stacked and mixed with other components, resulting in poor heat dissipation. If the heat is not handled in a timely manner, it will affect the use of the ventilator, and in the long run, it will affect the life of the mainboard and even cause damage to the ventilator. Utility Model Content

[0004] The purpose of the utility model is to provide a heat dissipation structure for a ventilator circuit assembly board, which can not only realize the miniaturization of the ventilator, but also can timely dissipate the heat energy of the circuit assembly board installed inside the ventilator, avoid local excessive temperature affecting the normal use of the ventilator, and improve the life of the ventilator.

[0005] The purpose of the utility model is achieved through such a technical solution, a heat dissipation structure of a ventilator circuit assembly board, comprising:

[0006] The shell is provided with an upper chamber and a lower chamber that are interconnected, a partition plate is provided between the upper chamber and the lower chamber; a gas flow channel is provided between the upper chamber and the lower chamber and between the shell and the outside;

[0007] a power circuit assembly board mounted in the lower chamber; and

[0008] The main control circuit assembly board and the display screen circuit assembly board are both installed in the upper chamber. The main control circuit assembly board is installed above the partition plate, and the display screen circuit assembly board is installed on an inner side of the shell. The main control circuit assembly board and the display screen circuit board are set at a prefabricated angle.

[0009] Preferably, a plurality of first support columns of equal height are provided on the upper surface of the partition plate, and the main control circuit assembly board is mounted on the first support columns.

[0010] Preferably, the housing further comprises a side housing, the inner side wall of the side housing is provided with a plurality of second support columns, the display screen circuit assembly board is mounted on the second support columns, and the side housing is arranged at a prefabricated angle with the housing.

[0011] Preferably, it further comprises a fan installed in the upper chamber; a first ventilation groove cooperating with the fan is provided on one side of the shell.

[0012] Preferably, a plurality of groups of second ventilation grooves are provided on the side wall of the partition plate along the circumferential direction, and at least one group of the second ventilation grooves is arranged opposite to the first ventilation grooves.

[0013] Preferably, a plurality of groups of third ventilation grooves are provided on the upper surface of the partition plate.

[0014] Preferably, the shell further comprises a lower cover, and the lower cover is provided with a fourth ventilation groove.

[0015] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0016] The partition plate divides the chamber of the shell into an upper chamber and a lower chamber, and the circuit assembly boards of the ventilator are respectively installed in the upper chamber and the lower chamber, and distributed in different positions in three-dimensional space. This not only optimizes the structural layout inside the chamber, so that the arrangement of each component occupies less space, which contributes to the overall miniaturization design of the ventilator, but also provides each circuit assembly board with sufficient heat dissipation space, reducing the radiation heat transfer between each other during operation. Gas flow channels are provided between the upper chamber and the lower chamber and between the shell and the outside world, which further dissipate heat for each circuit assembly board, avoid excessively high local temperature of the ventilator affecting its normal use, and increase the life of the ventilator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 This is a schematic structural diagram of a heat dissipation structure of a ventilator circuit assembly board according to the present invention;

[0019] Figure 2 Schematic diagram of the structure of the upper chamber;

[0020] Figure 3 This is a schematic diagram of the fan installation;

[0021] Figure 4 A bottom-up schematic diagram of the heat dissipation structure of the ventilator circuit assembly board;

[0022] Figure 5 Schematic diagram of the structure of the lower chamber.

[0023] Reference numerals:

[0024] 1-shell, 11-upper chamber, 12-lower chamber, 13-partition plate, 131-first support column, 132-support platform, 133-second ventilation groove, 134-third ventilation groove, 14-side shell, 141-second support column, 15-first ventilation groove, 16-lower cover, 161-fourth ventilation groove,

[0025] 2-power supply circuit assembly board, 3-main control circuit assembly board, 4-display screen circuit assembly board, 5-first heat dissipation space channel, 6-second heat dissipation space channel, 7-third heat dissipation space channel, 8-fan. DETAILED DESCRIPTION

[0026] See also Figure 1 、 Figure 2 and Figure 5 A heat dissipation structure of a ventilator circuit assembly board includes: a shell 1, a power circuit assembly board 2, a main control circuit assembly board 3 and a display circuit assembly board 4.

[0027] The housing 1 is provided with an upper chamber 11 and a lower chamber 12 that are interconnected. A partition plate 13 is provided between the upper chamber 11 and the lower chamber 12. Gas flow channels are provided between the upper chamber 11 and the lower chamber 12, and between the housing 1 and the outside world. The power supply circuit assembly board 2 is installed in the lower chamber 12; the main control circuit assembly board 3 and the display circuit assembly board 4 are both installed in the upper chamber 11; the main control circuit assembly board 3 is installed above the partition plate 13, and the display circuit assembly board 4 is installed on an inner side of the housing 1, and the main control circuit assembly board 3 and the display circuit assembly board 4 are arranged at a prefabricated angle. Specifically, the partition plate 13 is not a flat plate, but forms a mounting groove with the housing 1 suitable for mounting various components, such as a fan groove, a turbine blower groove, etc., and the various components are installed in an orderly manner between the circuit assembly boards. The main heat-generating electronic components of the power supply circuit assembly board 2 are installed on a substrate facing away from the partition plate 13, while the main heat-generating electronic components of the main control circuit assembly board 3 are installed on a substrate facing the partition plate 13.

[0028] The utility model discloses a heat dissipation structure of a circuit assembly board of a ventilator, in which a partition plate 13 divides the chamber of the shell 1 into an upper chamber 11 and a lower chamber 12, and each circuit assembly board of the ventilator is installed in the upper chamber 11 and the lower chamber 12 from the three-dimensional space respectively. This can not only optimize the structural layout inside the chamber, so that the arrangement of each component occupies less space, which is conducive to the overall miniaturization design of the ventilator, but also the power circuit assembly board 2, the main control circuit assembly board 3 and the display circuit assembly board 4 are distributed in different three-dimensional space positions, which is not a simple stacked layout, and has sufficient heat dissipation space to reduce the radiation heat transfer between each other during operation. A gas flow channel is provided between the upper chamber 11 and the lower chamber 12 and between the shell 1 and the outside world, which transfers the heat in the chamber of the shell 1 to the outside of the shell, avoids local excessive temperature affecting the normal use of the ventilator, and improves the life of the ventilator.

[0029] See also Figure 1 and Figure 2 Furthermore, the upper surface of the partition plate 13 is provided with a plurality of first support columns 131 of equal height, and the main control circuit assembly board 3 is mounted on the first support columns 131. The number and position of the first support columns 131 are coordinated with the baseboard positioning holes of the main control circuit assembly board 3. The first support columns 131 are maintained at a certain distance from the partition plate 13, are parallel to the partition plate 13, and maintain a spacing from the partition plate 13, forming the first heat dissipation space channel 5, ensuring good heat dissipation of the main control circuit assembly board 3.

[0030] See also Figure 1 Furthermore, the shell 1 also includes a side shell 14, and the inner side wall of the side shell 14 is provided with a second support column 141, and the display screen circuit assembly board 4 is installed on the second support column 141. The side shell 14 and the shell 1 are set at a prefabricated angle. Specifically, the side shell 14 is installed on the outside of the shell 1 at a prefabricated angle, and the ventilator display is installed on the outside of the side shell 14. The number and position of the second support columns 141 are used in conjunction with the substrate positioning holes of the display screen circuit assembly board 4. Relying on the second support columns 141, the display screen circuit assembly board 4 maintains a certain distance from the side shell 14, is parallel and maintains a distance from the side shell 14, forming a second heat dissipation space channel 6 to ensure that the display screen circuit assembly board 4 dissipates heat. The main control circuit assembly board 3 and the display screen circuit assembly board 4 are set at a prefabricated angle and installed in a three-dimensional manner without overlapping installation, which reduces radiant heating between each other. The display screen circuit assembly board 4 also uses the first heat dissipation space channel 5 to dissipate heat. Therefore, the main control circuit assembly board 3 and the display screen circuit assembly board 4 have sufficient heat dissipation space.

[0031] See also Figure 5Furthermore, a support platform 132 of the same height is provided on the lower surface of the partition plate 13, and the power circuit assembly board 2 is mounted on the support platform 132. Specifically, there are four support platforms 132, and the four corners of the power circuit assembly board 2 are respectively mounted on the surface of the support platform 132. Relying on the support platform 132, the power circuit assembly board 2 maintains a certain distance from the side shell 14, is parallel and maintains a distance from the partition plate 13, forming a third heat dissipation space channel 7, and ensures good heat dissipation of the power circuit assembly board 2. The main control circuit assembly board 3 and the power circuit assembly board 2 are isolated from each other by the partition plate 13 and maintain a relatively large distance. The main heat-generating electronic components are arranged back to back to avoid radiation heating between each other.

[0032] See also Figure 2 and Figure 3 Furthermore, the ventilator further includes a fan 8 installed in the upper chamber 11; a first ventilation slot 15 that cooperates with the fan 8 is provided on one side of the housing 1. When the ventilator is equipped with the fan 8, the fan 8 draws external air from the first ventilation slot 15 into the interior of the fan 8 by utilizing the principle of air flow. After being accelerated and redirected by the fan 8, the cold air is discharged, and the relatively high temperature gas inside the ventilator is discharged, thereby achieving a ventilation effect in the upper chamber 11 and the lower chamber 12.

[0033] See also Figure 2 and Figure 5 Furthermore, in order to further accelerate the heat dissipation of the lower chamber 12 and avoid heat concentration in the upper layer of the lower chamber 12, a plurality of groups of second ventilation grooves 133 are provided on the side wall of the partition plate 13 along the circumferential direction, and at least one group of second ventilation grooves 133 is arranged opposite to the first ventilation groove 15.

[0034] See 2 and Figure 5 Furthermore, since high-temperature airflow moves upward, in order to further accelerate the heat dissipation of the lower chamber 12 and avoid heat concentration in the upper layer of the lower chamber 12, a plurality of third ventilation grooves 134 are provided on the upper surface of the partition plate 13.

[0035] See also Figure 4 Furthermore, the housing 1 further includes a lower cover 16, which is provided with a fourth ventilation groove 161. Part of the heat of the lower chamber 12 is directly discharged from the fourth ventilation groove 161, further improving the heat dissipation effect.

[0036] The partition plate 13 divides the chamber of the shell 1 into an upper chamber 11 and a lower chamber 12. The partition plate 13 is provided with a second ventilation groove 133 and a third ventilation groove 134, so that the upper chamber 11 and the lower chamber 12 are effectively connected, and the gas flows between the upper chamber 11 and the lower chamber 12. The circuit assembly boards of the ventilator are respectively installed in the upper chamber 11 and the lower chamber 12 from the three-dimensional space. This not only optimizes the structural layout inside the chamber, so that the arrangement of each component occupies less space, which contributes to the overall miniaturization design of the ventilator, but also the power circuit assembly board 2, the main control circuit assembly board 3 and the display circuit assembly board 4 are distributed in different positions, not a simple stacked layout, with heat dissipation space channels and sufficient heat dissipation space to reduce radiation heat transfer between each other during operation. A second ventilation groove 133 and a third ventilation groove 134 are provided to allow air to flow between the upper chamber 11 and the lower chamber 12 to form a gas circulation channel. A fourth ventilation groove 161 and the first ventilation groove 15 are provided to form a gas circulation channel between the inner cavity of the shell 1 and the outside world. The fan 8 is then used to discharge the relatively high temperature gas in the upper chamber 11 and the lower chamber 12 out of the ventilator, so that the ventilator circuit assembly board has good heat dissipation, avoiding local excessive temperature affecting the normal use of the ventilator and improving the life of the ventilator.

[0037] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above is only a specific implementation method of the utility model and is not intended to limit the utility model. Any modifications, equivalent replacements and improvements made within the scope of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A heat dissipation structure of a ventilator circuit assembly board, characterized in that: include: The housing (1) is provided with an upper chamber (11) and a lower chamber (12) that are interconnected, and a partition plate (13) is provided between the upper chamber (11) and the lower chamber (12); gas flow channels are provided between the upper chamber (11) and the lower chamber (12) and between the housing (1) and the outside world; A power circuit assembly board (2) is installed in the lower chamber (12); and The main control circuit assembly board (3) and the display screen circuit assembly board (4) are both installed in the upper chamber (11). The main control circuit assembly board (3) is installed above the partition board (13), and the display screen circuit assembly board (4) is installed on an inner side of the housing (1). The main control circuit assembly board (3) and the display screen circuit assembly board (4) are arranged at a prefabricated angle.

2. The heat dissipation structure of the ventilator circuit assembly board according to claim 1, characterized in that: A plurality of first support columns (131) of equal height are provided on the upper surface of the partition plate (13), and the main control circuit assembly board (3) is mounted on the first support columns (131).

3. The heat dissipation structure of the ventilator circuit assembly board according to claim 1 or 2, characterized in that: The housing (1) further comprises a side housing (14), the inner side wall of the side housing (14) being provided with a plurality of second support columns (141), the display screen circuit assembly board (4) being mounted on the second support columns (141), and the side housing (14) and the housing (1) being arranged at a prefabricated angle.

4. The heat dissipation structure of the ventilator circuit assembly board according to claim 1 or 2, characterized in that: A support platform (132) of the same height is provided on the lower surface of the partition plate (13), and the power circuit assembly board (2) is installed on the support platform (132).

5. The heat dissipation structure of the ventilator circuit assembly board according to claim 3, characterized in that: A support platform (132) of the same height is provided on the lower surface of the partition plate (13), and the power circuit assembly board (2) is installed on the support platform (132).

6. The heat dissipation structure of the ventilator circuit assembly board according to claim 1, 2 or 5, characterized in that: It also includes a fan (8) installed in the upper chamber (11); a first ventilation groove (15) that cooperates with the fan (8) is provided on one side of the shell (1).

7. The heat dissipation structure of the ventilator circuit assembly board according to claim 6, characterized in that: A plurality of groups of second ventilation grooves (133) are provided on the side wall of the partition plate (13) along the circumferential direction, and at least one group of the second ventilation grooves (133) is arranged opposite to the first ventilation groove (15).

8. The heat dissipation structure of the ventilator circuit assembly board according to claim 1, 2, 5 or 7, characterized in that: A plurality of third ventilation grooves (134) are provided on the upper surface of the partition plate (13).

9. The heat dissipation structure of the ventilator circuit assembly board according to claim 1, 2, 5 or 7, characterized in that: The housing (1) further comprises a lower cover (16), which is provided with a fourth ventilation groove (161).

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