Hidden heat dissipation structure of portable pneumatic pressure therapeutic apparatus

Abstract

The utility model discloses a hidden heat dissipation structure of a portable pneumatic pressure therapeutic apparatus, the portable pneumatic pressure therapeutic apparatus comprises a housing, the upper end of the rear side of the housing is provided with a boss protruding backwards, the boss is provided with a plurality of air inlet holes communicated with the interior of the housing, and the air inlet holes are communicated with the interior of the housing. A fan located below the air inlet hole is arranged on the inner wall of the rear side of the shell, an air inlet in the front side of the fan is communicated with the air inlet hole, and an air flowing channel is formed between the rear side of the fan and the inner wall of the rear side of the shell. An air outlet cavity located below the air flowing channel and communicated with the air flowing channel is formed in the lower end of the rear side of the shell, and a plurality of air outlet holes communicated with the air outlet cavity are formed in the bottom of the rear side of the shell. The heat dissipation effect can be effectively improved, and noise generated when the fan works can be effectively reduced.

Description

A concealed heat dissipation structure for a portable pneumatic pressure therapy device Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a concealed heat dissipation structure for a portable pneumatic pressure therapy device. Background Technology

[0002] In the field of medical devices, pneumatic pressure therapy devices are common equipment that mainly treat patients through pneumatic means: promoting blood circulation and relieving muscle tension by increasing or decreasing pressure.

[0003] In terms of thermal management, heat dissipation is a common challenge for all electronic devices, especially those operating for extended periods, such as pneumatic pressure therapy devices. In existing pneumatic pressure therapy devices, fans and ventilation holes are common heat dissipation methods. However, combining these two technologies and optimizing heat dissipation while reducing noise remains a major technological challenge. Current pneumatic pressure therapy devices typically use fan cooling, where ventilation holes (air vents) are designed on the outer casing corresponding to the internal fan blades. The fan's rotation drives airflow, which is then blown directly out through these vents, thus removing heat from the device. However, this method suffers from drawbacks due to the fan's inherent limitations. The fan is positioned close to and directly facing the ventilation holes, causing the noise generated by the rotation to be transmitted directly from the ventilation holes, resulting in excessive noise. Furthermore, the fan directly draws in and expels air from the device, and since the ventilation holes function as both air inlets and outlets, effective air circulation between the inside and outside is hindered. This prevents the efficient removal of hot air from the device's cavity, thus affecting its heat dissipation. Additionally, the external fan is positioned outside the ventilation holes (i.e., the air outlets), making the ventilation holes (i.e., the air outlets) large and exposed. This not only affects the overall aesthetics of the device but may also cause discomfort for the user, as the hot air blown out can easily blow onto the user, resulting in a poor user experience. Summary of the Invention

[0004] The purpose of this invention is to overcome the existing technical defects and provide a concealed heat dissipation structure for a portable pneumatic pressure therapy device, which can effectively improve heat dissipation and reduce the noise generated when the fan is working.

[0005] To solve the above-mentioned technical problems, this utility model provides a concealed heat dissipation structure for a portable pneumatic pressure therapy device. The portable pneumatic pressure therapy device includes a shell. The upper rear side of the shell has a rearward protrusion. The protrusion has several air inlets communicating with the interior of the shell. The inner rear wall of the shell has a fan located below the air inlets. The air inlet on the front side of the fan communicates with the air inlets, and an air flow channel is formed between the rear side of the fan and the inner rear wall of the shell. The lower rear side of the shell has an air outlet chamber located below and communicating with the air flow channel. The bottom rear side of the shell has several air outlets communicating with the air outlet chamber.

[0006] Furthermore, the air inlet extends along the bottom and rear end face of the boss to form a right-angled structure.

[0007] Furthermore, the air inlet is located at the bottom of the boss.

[0008] Furthermore, the boss is provided with an air intake channel that connects the internal space of the outer shell and the air intake hole.

[0009] Furthermore, a fan mounting position is provided in the middle of the rear inner wall of the outer casing by means of a baffle. Each of the four corners of the fan mounting position is provided with a stud. The fan is fixed to the stud by screws so that an air flow channel is formed between the air outlet on the rear side of the fan and the wall surface of the fan mounting position. An air outlet channel connecting the air flow channel and the air outlet chamber is provided at the bottom of the fan mounting position.

[0010] Furthermore, a removable decorative cover is provided at the lower rear end of the outer casing, and the air vent is formed between the decorative cover and the outer casing.

[0011] Furthermore, the air outlet cavity is provided with a power socket fixed to the outer shell, and a wire hole for the power cord to pass through is provided between the decorative cover and the outer shell.

[0012] Furthermore, the housing contains a control board, an electromagnetic pump, an air tank, and an electromagnetic valve assembly. The control board is electrically connected to the fan, power socket, electromagnetic pump, and electromagnetic valve assembly, respectively. The control board, air tank, and electromagnetic valve assembly are all located above the fan and between the fan and the air inlet.

[0013] Furthermore, the air tank and the control board are both fixed above the fan by a first metal bracket, and the solenoid valve assembly is fixed above the air tank by a second metal bracket. A first inflow channel communicating with the air inlet channel is formed between the solenoid valve assembly and the air tank, and a second inflow channel communicating with the air inlet of the fan and the first inflow channel is formed between the first metal bracket and the control board.

[0014] Furthermore, a temperature sensor electrically connected to the control board is provided on one side of the fan.

[0015] This utility model has the following beneficial effects:

[0016] In this invention, by setting air inlets, a fan, and an air outlet at the top, middle, and bottom of the outer casing, the air inside the casing can circulate internally and externally under the action of the fan, improving the heat dissipation effect of the internal cavity of the casing. Furthermore, the air outlet is located at the bottom of the casing, while the fan is hidden inside the casing, forming a concealed heat dissipation structure. The fan's air outlet is not opposite to the air outlet, that is, the fan is set away from the air inlet and air outlet, reducing the outward transmission of sound generated when the fan is working, thereby reducing noise. The hot air blown out of the air outlet will only be directed towards the bottom of the device, so that the hot air will not blow directly onto the user, resulting in a better user experience and improving the aesthetics of the device.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 is a schematic diagram of the portable pneumatic pressure therapy device in the embodiment;

[0020] Figure 2 is a schematic diagram of the portable pneumatic pressure therapy device after the decorative cover has been removed in the embodiment;

[0021] Figure 3 is a cross-sectional view of the portable pneumatic pressure therapy device in the embodiment;

[0022] Figure 4 is a partial cross-sectional view of the portable pneumatic pressure therapy device in the embodiment;

[0023] Figure 5 is a half-sectional schematic diagram of the portable pneumatic pressure therapy device in the embodiment;

[0024] Figure 6 is a schematic diagram of the rear shell in the embodiment;

[0025] Figure 7 is a schematic diagram of another embodiment in which a temperature sensor is provided on one side of the fan. Detailed Implementation

[0026] To better understand the technical content of this utility model, the following will further introduce and explain this utility model in conjunction with the accompanying drawings and specific embodiments. It should be noted that if there are descriptions such as "first" and "second" in the text, they are used to distinguish different components, etc., and do not represent the order of priority, nor do they limit "first" and "second" to be different types.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Example

[0029] As shown in Figures 1 to 6, the portable pneumatic pressure therapy device of this embodiment has a concealed heat dissipation structure. The portable pneumatic pressure therapy device includes a shell 1 and a control board 2, an electromagnetic pump 3, an air tank 4, and an electromagnetic valve group 5 disposed inside the shell 1. The control board 2 is electrically connected to the electromagnetic pump 3 and the electromagnetic valve group 5 respectively. Since the internal components of the portable pneumatic pressure therapy device generate a lot of heat when they work, the heat accumulation will affect the operation of the device. Therefore, a heat dissipation structure needs to be designed in the portable pneumatic pressure therapy device to cool down the components inside the shell.

[0030] Specifically, as shown in Figures 1 to 5, a rearwardly protruding boss 11 is provided on the upper rear side of the outer casing 1. Multiple air nozzles 12, connected to the solenoid valve assembly, are provided in the boss 11 for outputting high-pressure gas to the outside. Several air inlets 13, connected to the interior of the outer casing 1, are arranged at intervals on the boss 11. A fan 6, located below the air inlets 13, is located in the middle of the rear inner wall of the outer casing 1. The fan 6 is electrically connected to the control board 2. The air inlet on the front side of the fan 6 is connected to the air inlets 13, and an airflow channel 14 is formed between the rear side of the fan 6 and the rear inner wall of the outer casing 1. An air outlet chamber 15, located below and connected to the airflow channel 14, is provided in the lower rear end of the outer casing 1. Several air outlet holes 16, connected to the air outlet chamber 15, are provided at the bottom rear side of the outer casing 1, arranged at intervals. This arrangement ensures that when the fan is working, the air outside the device is ventilated. Air flows into the housing 1 through the air inlet 13, contacting the various components inside the housing 1 and cooling them. The air then flows into the fan and flows downwards along the airflow channel 14, the air outlet 15, and the air outlet 16. The air inside the housing circulates internally and externally under the action of the fan, thanks to the air inlet, fan, and air outlet located at the top, middle, and bottom of the housing, improving the heat dissipation effect of the internal cavity. Furthermore, the air outlet is located at the bottom of the housing, while the fan is hidden inside, forming a concealed heat dissipation structure. The fan outlet is not opposite the air outlet, meaning the fan is positioned away from the air inlet and outlet, reducing the outward transmission of sound generated during fan operation and thus lowering noise. The hot air blown out of the air outlet will only be directed towards the bottom of the device, preventing it from directly blowing onto the user, improving the user experience and enhancing the aesthetics of the device.

[0031] In one embodiment, as shown in Figures 1 to 4, the air inlet 13 extends along the bottom and rear end face of the boss 11 so that the air inlet 13 forms a right-angled structure, and the air inlet 13 is designed at the right-angle position of the boss so that the air inlet 13 presents a structure that is larger on the outside and smaller on the inside.

[0032] In another embodiment, the air intake can also be located at the bottom of the boss, thereby forming a concealed structure.

[0033] In one embodiment, as shown in FIG3, the boss 11 is provided with an air intake channel 17 that connects the internal space of the housing 1 and the air intake hole 13, so that the incoming air enters the internal space of the housing along the air intake channel 17 inside the boss 11 and comes into contact with each device.

[0034] In one embodiment, as shown in Figures 3 to 6, a fan mounting position 19 is provided in the middle of the rear inner wall of the outer casing 1 by means of a baffle 18. A stud 20 is provided at each of the four corners of the fan mounting position 19. The fan 6 is vertically fixed to the stud 20 by screws. Through the support and fixation of the stud, an air flow channel 14 is formed between the air outlet on the rear side of the fan 6 and the wall surface of the fan mounting position 19. An air outlet channel 21 is provided at the bottom of the fan mounting position 19, which connects the air flow channel 14 and the air outlet chamber 15.

[0035] In one embodiment, as shown in Figures 1 to 3, a detachable decorative cover 22 is provided at the lower rear end of the outer casing 1. An air vent 15 is formed between the decorative cover 22 and the outer casing 1. The decorative cover is detachably installed on the outer casing 1 by means of snap-fit ​​or screw fixation.

[0036] In one embodiment, as shown in Figures 1 to 4, a power socket 23 fixed to the outer casing 1 is provided in the air outlet chamber 15. A wire hole for the power cord 24 to pass through is also provided between the decorative cover 22 and the outer casing 1. In actual use, after the decorative cover 22 is removed, the plug of one end of the power cord of the device can be directly plugged into the power socket 23. Then the decorative cover is reassembled, and the power cord 24 is passed out from the wire hole. This method of internalizing the power cord avoids the problem of it easily coming loose during use. Secondly, the power socket is hidden inside, which improves the overall appearance and aesthetics of the device. Thirdly, the outward air can also be used to cool the power cord plug and the power socket.

[0037] In one embodiment, as shown in Figures 1 to 5, the air tank 4 and the control board 2 are both fixed above the fan 6 by the first metal bracket 25, and the solenoid valve assembly 5 is fixed above the air tank 4 by the second metal bracket 26. A first inflow channel 27 communicating with the air inlet channel 17 is formed between the solenoid valve assembly 5 and the air tank 4. A second inflow channel 28 communicating with the air inlet of the fan 6 and the first inflow channel 27 is formed between the first metal bracket 25 and the control board 2. That is, the incoming air will flow through the solenoid valve assembly 5, the air tank 4, the control board 2, and the two metal brackets. By utilizing the good thermal conductivity and heat dissipation characteristics of the metal brackets, the heat dissipation effect is further enhanced after each device and the metal brackets come into contact with the flowing air.

[0038] In one embodiment, as shown in Figures 1 to 6, the outer shell comprises a front shell 100 and a rear shell 101 assembled front and rear, with a boss 11, a fan mounting position 19, an air inlet 13 and an air outlet 16 all provided on the rear shell 101.

[0039] In another specific implementation case, as shown in Figure 7, a temperature sensor 7 electrically connected to the control board can also be provided on one side of the fan 6. The temperature sensor 7 monitors the internal working temperature and ambient temperature of the equipment in real time, and the control board automatically adjusts the working state of the fan according to the temperature change (i.e., adjusts the working power and speed of the fan. At this time, the temperature and speed are positively correlated. When the temperature exceeds the set threshold, the speed is increased, and when it is below the threshold, the speed is reduced or stopped), thereby optimizing the heat dissipation effect and improving the energy efficiency ratio of the equipment.

[0040] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A concealed heat dissipation structure for a portable pneumatic pressure therapy device, the portable pneumatic pressure therapy device comprising a shell, characterized in that, The upper rear side of the outer casing has a rearward protrusion, and the protrusion has several air inlets communicating with the interior of the outer casing. The inner rear wall of the outer casing has a fan located below the air inlets. The air inlet on the front side of the fan communicates with the air inlets, and an air flow channel is formed between the rear side of the fan and the inner rear wall of the outer casing. The lower rear side of the outer casing has an air outlet chamber located below and communicating with the air flow channel. The bottom rear side of the outer casing has several air outlets communicating with the air outlet chamber.

2. The concealed heat dissipation structure of the portable pneumatic pressure therapy device as described in claim 1, characterized in that, The air inlet extends along the bottom and rear end face of the boss, so that the air inlet forms a right-angled structure.

3. The concealed heat dissipation structure of the portable pneumatic pressure therapy device as described in claim 1, characterized in that, The air inlet is located at the bottom of the boss.

4. The concealed heat dissipation structure of the portable pneumatic pressure therapy device as described in any one of claims 1-3, characterized in that, The boss has an air intake channel that connects the internal space of the outer shell and the air intake hole.

5. The portable pneumatic compression therapy apparatus of claim 4, wherein the heat sink structure is configured to be concealed within the portable pneumatic compression therapy apparatus. A fan mounting position is provided in the middle of the rear inner wall of the outer casing by means of a baffle. Each of the four corners of the fan mounting position is provided with a stud. The fan is fixed to the stud by screws so that an air flow channel is formed between the air outlet on the rear side of the fan and the wall surface of the fan mounting position. An air outlet channel is provided at the bottom of the fan mounting position to connect the air flow channel and the air outlet chamber.

6. The concealed heat dissipation structure of the portable pneumatic pressure therapy device as described in claim 5, characterized in that, The lower rear end of the outer casing is provided with a removable decorative cover, and the air vent is formed between the decorative cover and the outer casing.

7. The portable pneumatic compression therapy apparatus of claim 6, wherein the heat sink is configured to be positioned within the housing. The air outlet chamber is equipped with a power socket fixed to the outer shell, and a wire hole for the power cord to pass through is provided between the decorative cover and the outer shell.

8. The concealed heat dissipation structure of the portable pneumatic pressure therapy device as described in claim 7, characterized in that, The housing contains a control board, an electromagnetic pump, an air tank, and an electromagnetic valve assembly. The control board is electrically connected to the fan, a power socket, the electromagnetic pump, and the electromagnetic valve assembly. The control board, the air tank, and the electromagnetic valve assembly are all located above the fan and between the fan and the air inlet.

9. The portable pneumatic compression therapy apparatus of claim 8, wherein the heat sink is concealed by the housing. The air tank and control board are both fixed above the fan by a first metal bracket. The solenoid valve assembly is fixed above the air tank by a second metal bracket. A first inflow channel communicating with the air inlet channel is formed between the solenoid valve assembly and the air tank. A second inflow channel communicating with the air inlet of the fan and the first inflow channel is formed between the first metal bracket and the control board.

10. The portable pneumatic compression therapy apparatus of claim 9, wherein the heat sink is concealed by the housing. A temperature sensor electrically connected to the control board is provided on one side of the fan.

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