Intelligent hand dryer with heat dissipation function

Abstract

The utility model discloses an intelligent hand dryer with heat dissipation function, including base, be equipped with with its detachable installation casing on the base, be equipped with the air outlet component for the air outlet on the base, and the air outlet component includes drive fan, the top of air outlet component is equipped with the air inlet channel of intercommunication with it, and the filter piece of detachable connection is equipped with in the air inlet channel, the bottom of air outlet component is equipped with the air outlet channel of intercommunication with it, and the side of air outlet component is equipped with the control circuit board of electric connection with it, the outside installation of control circuit board has the fairlead, the fairlead sets up between the air outlet channel and air inlet channel, and the radiator is equipped between control circuit board and air outlet component, the bottom of air inlet channel is equipped with the ventilation hole of intercommunication with the fairlead, the utility model discloses through the fairlead to the wind is guided, and cooperate radiator to control circuit board and drive fan are cooled down, and the heat dissipation effect is good, and user uses more safe and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of hand dryer technology, specifically relating to an intelligent hand dryer with heat dissipation function. Background Technology

[0002] Hand dryers are common hygiene and cleaning appliances on the market. After washing their hands, users place their hands under the air outlet of an automatic hand dryer, which automatically delivers a comfortable warm air to quickly dry their damp hands. A patent with publication number CN222804221U discloses a hand dryer comprising a housing and an air outlet assembly. The housing has an air inlet and an air outlet. The air outlet assembly includes an air outlet pipe, a fan, and a fan inlet. One end of the air outlet pipe passes through the air outlet. The components of the air outlet assembly are sealed together. A partition is provided inside the housing, and a first sealing ring is provided between the partition and the housing, dividing the housing into an air inlet chamber and an air outlet chamber. The air outlet assembly is located within the air outlet chamber. A second sealing ring is provided between the air outlet assembly and the housing, dividing the air outlet chamber into a first chamber and a second chamber. The fan inlet is located within the first chamber, and the fan is located within the second chamber. The partition has an opening for connecting the first chamber and the air inlet chamber. A third sealing structure is provided at the connection between the air outlet pipe and the air outlet. Existing hand dryers have their fans and circuit boards housed within the casing, resulting in significant heat generation during operation. Furthermore, the lack of effective heat dissipation in current hand dryers exacerbates this problem, negatively impacting user experience. Therefore, a smart hand dryer with integrated heat dissipation capabilities is needed to overcome these challenges. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by designing an intelligent hand dryer with heat dissipation function. This invention guides the airflow through a baffle plate and works with a heat sink to cool the control circuit board and drive fan, resulting in good heat dissipation and making it safer and more reliable for users.

[0004] The objective of this invention is achieved through the following technical solution: a smart hand dryer with heat dissipation function, comprising a base, a housing detachably mounted on the base, an air outlet assembly for air outlet on the base, the air outlet assembly including a driving fan; an air inlet channel communicating with the top of the air outlet assembly, a filter detachably connected to the air inlet channel; an air outlet channel communicating with the bottom of the air outlet assembly, a control circuit board electrically connected to the side of the air outlet assembly; a guide plate mounted on the outside of the control circuit board, the guide plate being disposed between the air outlet channel and the air inlet channel, a heat sink being disposed between the control circuit board and the air outlet assembly; and ventilation holes communicating with the guide plate at the bottom of the air inlet channel.

[0005] Preferably, the air outlet assembly is fixedly connected to the guide plate, the air outlet assembly is provided with a mounting post for mounting screws, the guide plate is provided with mounting holes for mounting screws, and the air outlet assembly and the guide plate are fixed together by screws.

[0006] Preferably, the air outlet assembly is a columnar body, and the guide plate is elongated; the guide plate extends along the axial direction of the air outlet assembly.

[0007] Preferably, the guide plate includes a semi-open receiving chamber and a connecting plate, wherein the side plate of the semi-open receiving chamber is fixedly connected to the base; the semi-open receiving chamber and the connecting plate are integrally formed, and the connecting plate is fixedly connected to the outer shell of the air outlet assembly.

[0008] Preferably, a control circuit board and a heat sink are provided in the semi-open accommodating chamber. The heat sink is arranged parallel to the control circuit board and is fixedly mounted on the control circuit board. The heat sink is located near the drive fan on the air outlet assembly.

[0009] Preferably, the top of the air outlet assembly is provided with an air inlet channel fixedly connected thereto, and the bottom of the air inlet channel is provided with a ventilation hole; the control circuit board and the heat sink are both located near the ventilation hole.

[0010] By incorporating mounting holes and posts, the connection between the guide plate and the air outlet assembly is made more stable. A semi-open containment chamber is designed on the guide plate to guide the direction of gas diffusion, preventing arbitrary gas diffusion within the housing. Because the semi-open containment chamber houses a radiator positioned near the ventilation holes of the air inlet channel, the ambient air temperature will be lower than the air temperature inside the air outlet assembly after prolonged operation. This allows the low-temperature gas entering the housing from the outside to preferentially cool the control circuit board and drive fan. Since both the guide plate and radiator are elongated, the heat dissipation area is larger, resulting in better heat dissipation. The low-temperature gas flows along the guide plate through the ventilation holes into the air inlet channel, and then from the air inlet channel into the interior of the air outlet assembly. After being cooled by the radiator, the gas temperature does not rise significantly; ultimately, the gas exiting the air outlet channel is essentially at room temperature.

[0011] Preferably, the filter element is detachably installed in the air inlet channel, and the outer contour of the filter element is adapted to the outer contour of the air inlet channel; the opening end of the air inlet channel is provided with a pressure block, which is installed on the air inlet channel by screws, and the pressure block is fitted to the end face of the filter element.

[0012] By incorporating a filter, the air entering the outlet assembly is filtered, resulting in higher quality air exiting the outlet duct. The filter is removable for easy replacement and cleaning. The inclusion of a pressure block ensures a more secure connection between the filter and the inlet duct.

[0013] Preferably, the air outlet channel includes a pair of air outlet holes that extend to the surface of the housing; a sensing component is provided between the air outlet channel and the base plate and is installed on the outer wall of the air outlet channel; the sensing component is electrically connected to the control circuit board and extends to the surface of the housing.

[0014] When the user's hands approach the sensing component, the sensing component sends an electrical signal to the control circuit board, which in turn sends a working command to the drive fan; then air will be continuously discharged from the air outlet of the air outlet channel, thereby drying the user's hands.

[0015] Preferably, the bottom of the housing is provided with a plurality of evenly distributed air inlets, which are located near the bottom of the guide plate.

[0016] By setting up air inlets, the air from the outside environment can diffuse along the air inlets toward the guide plate, and then enter the air intake channel along the guide plate.

[0017] Compared with the prior art, the present invention has the following advantages: 1. By setting a guide plate, the flow direction of the gas is guided, thereby ensuring that the gas passes over the control circuit board and the surface of the heat sink; 2. After the gas is guided, the control circuit board and the drive fan are cooled first; since the heat sink is provided, the temperature of the gas will not rise too much, so the gas can cool the inside of the drive fan again when it enters the drive fan; 3. By setting a detachable filter, subsequent cleaning is convenient and better. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a perspective view of the concealed housing of this utility model;

[0020] Figure 3 This is a perspective view of the hidden housing of this utility model from another angle;

[0021] Figure 4 This is an exploded view of the present invention;

[0022] The diagram shows the following components: 1. Base; 2. Housing; 3. Air outlet assembly; 31. Drive fan; 4. Air inlet channel; 5. Filter; 6. Air outlet channel; 61. Air outlet hole; 7. Control circuit board; 8. Guide plate; 81. Semi-open receiving chamber; 82. Connecting plate; 9. Radiator; 10. Ventilation hole; 11. Mounting post; 12. Mounting hole; 13. Pressure block; 14. Sensing assembly; 15. Air inlet hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0024] like Figures 1 to 4 As shown, this embodiment discloses an intelligent hand dryer with heat dissipation function, including a base 1, a housing 2 detachably mounted on the base 1, an air outlet assembly 3 for air outlet, the air outlet assembly 3 including a drive fan 31; an air inlet channel 4 communicating with the top of the air outlet assembly 3, a filter 5 detachably connected to the air inlet channel 4; an air outlet channel 6 communicating with the bottom of the air outlet assembly 3, a control circuit board 7 electrically connected to the side of the air outlet assembly 3; a guide plate 8 installed on the outside of the control circuit board 7, the guide plate 8 being disposed between the air outlet channel 6 and the air inlet channel 4, a heat sink 9 being disposed between the control circuit board 7 and the air outlet assembly 3; and a ventilation hole 10 communicating with the guide plate 8 at the bottom of the air inlet channel 4.

[0025] The air outlet assembly 3 is fixedly connected to the guide plate 8. The air outlet assembly 3 is provided with mounting posts 11 for mounting screws, and the guide plate 8 is provided with mounting holes 12 for mounting screws. The air outlet assembly 3 and the guide plate 8 are fixed together by screws. The air outlet assembly 3 is a columnar body, and the guide plate 8 is elongated. The guide plate 8 extends along the axial direction of the air outlet assembly 3. The guide plate 8 includes a semi-open receiving chamber 81 and a connecting plate 82. The side plate of the semi-open receiving chamber 81 is fixedly connected to the base 1. The semi-open receiving chamber 81 and the connecting plate 82 are integrally formed, and the connecting plate 82 is fixedly connected to the outer shell of the air outlet assembly 3. The semi-open receiving chamber 81 is provided with a control circuit board 7 and a heat sink 9. The heat sink 9 is arranged parallel to the control circuit board 7 and is fixedly mounted on the control circuit board 7. The heat sink 9 is located near the drive fan 31 on the air outlet assembly 3. The top of the air outlet assembly 3 is provided with an air inlet channel 4 fixedly connected thereto, and the bottom of the air inlet channel 4 is provided with a ventilation hole 10; the control circuit board 7 and the heat sink 9 are both located near the ventilation hole 10.

[0026] The filter element 5 is detachably installed inside the air inlet channel 4, and the outer contour of the filter element 5 is adapted to the outer contour of the air inlet channel 4. A pressure block 13 is provided at the opening end of the air inlet channel 4, and the pressure block 13 is installed on the air inlet channel 4 by screws, with the pressure block 13 fitting snugly against the end face of the filter element 5. The air outlet channel 6 includes a pair of air outlet holes 61, which extend to the surface of the housing 2. A sensing component 14 is provided between the air outlet channel 6 and the bottom plate, and the sensing component 14 is installed on the outer wall of the air outlet channel 6. The sensing component 14 is electrically connected to the control circuit board 7 and extends to the surface of the housing 2. The bottom of the housing 2 has several evenly distributed air inlet holes 15, which are located near the bottom of the guide plate 8.

[0027] The specific operation process of this embodiment is as follows: When the user's hands approach the sensing component 14, the sensing component 14 sends an electrical signal to the control circuit board 7, so the control circuit board 7 sends a working command to the drive fan 31; then the air will be continuously discharged from the air outlet 61 of the air outlet channel 6, thereby drying the user's hands. By setting the air inlet 15, the air in the external environment can diffuse along the air inlet 15 toward the guide plate 8, and then enter the air inlet channel 4 along the guide plate 8.

[0028] By setting the mounting hole 12 and mounting post 11, the connection between the guide plate 8 and the air outlet assembly 3 is more stable. The guide plate 8 is provided with a semi-open receiving chamber 81, which guides the direction of gas diffusion and prevents the gas from spreading arbitrarily within the housing 2. Since the semi-open receiving chamber 81 is equipped with a heat sink 9, and the heat sink 9 is located close to the ventilation hole 10 of the air inlet channel 4, after the air outlet assembly 3 has been working for a long time, the temperature of the gas in the outside environment will be lower than the temperature of the gas inside the air outlet assembly 3. Thus, the low-temperature gas entering the housing 2 from the outside will preferentially cool the control circuit board 7 and the drive fan 31. Since both the guide plate 8 and the heat sink 9 are long and narrow, the heat dissipation area is larger and the heat dissipation effect is better. The low-temperature gas enters the air inlet channel 4 from the ventilation hole 10 along the guide plate 8, and then enters the interior of the air outlet assembly 3 from the air inlet channel 4. Here, after the gas is cooled by the heat sink 9, the gas temperature will not rise too much. Finally, the gas exiting from the air outlet channel 6 is basically at room temperature.

[0029] By incorporating filter element 5, the gas entering the air outlet assembly 3 is filtered, resulting in better quality gas exiting the air outlet duct 6. Since filter element 5 is detachable, it facilitates subsequent replacement and cleaning. The pressure block 13 ensures a more secure connection between filter element 5 and the air inlet duct 4.

[0030] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A smart hand dryer with heat dissipation function, comprising a base (1), characterized in that, A housing (2) is detachably mounted on the base (1). An air outlet assembly (3) for air outlet is provided on the base (1). The air outlet assembly (3) includes a drive fan (31). An air inlet channel (4) is provided at the top of the air outlet assembly (3). A filter element (5) is detachably connected to the air inlet channel (4). An air outlet channel (6) is provided at the bottom of the air outlet assembly (3). A control circuit board (7) is electrically connected to the side of the air outlet assembly (3). A guide plate (8) is installed on the outside of the control circuit board (7). The guide plate (8) is located between the air outlet channel (6) and the air inlet channel (4). A radiator (9) is provided between the control circuit board (7) and the air outlet assembly (3). A ventilation hole (10) is provided at the bottom of the air inlet channel (4) and communicates with the guide plate (8).

2. The intelligent hand dryer with heat dissipation function according to claim 1, characterized in that, The air outlet assembly (3) is fixedly connected to the guide plate (8). The air outlet assembly (3) is provided with a mounting post (11) for mounting screws, and the guide plate (8) is provided with mounting holes (12) for mounting screws. The air outlet assembly (3) and the guide plate (8) are fixed together by screws.

3. The intelligent hand dryer with heat dissipation function according to claim 2, characterized in that, The air outlet assembly (3) is a columnar body, and the guide plate (8) is a long strip; the guide plate (8) extends along the axial direction of the air outlet assembly (3).

4. The intelligent hand dryer with heat dissipation function according to claim 2, characterized in that, The guide plate (8) includes a semi-open accommodating chamber (81) and a connecting plate (82). The side plate of the semi-open accommodating chamber (81) is fixedly connected to the base (1). The semi-open accommodating chamber (81) and the connecting plate (82) are integrally formed. The connecting plate (82) is fixedly connected to the outer shell of the air outlet assembly (3).

5. The intelligent hand dryer with heat dissipation function according to claim 4, characterized in that, The semi-open accommodating chamber (81) is equipped with a control circuit board (7) and a heat sink (9). The heat sink (9) is arranged parallel to the control circuit board (7) and is fixedly mounted on the control circuit board (7). The heat sink (9) is located near the drive fan (31) on the air outlet assembly (3).

6. The intelligent hand dryer with heat dissipation function according to claim 5, characterized in that, The top of the air outlet assembly (3) is provided with an air inlet channel (4) fixedly connected thereto, and the bottom of the air inlet channel (4) is provided with a ventilation hole (10); the control circuit board (7) and the heat sink (9) are both located near the ventilation hole (10).

7. The intelligent hand dryer with heat dissipation function according to claim 1, characterized in that, The filter element (5) is detachably installed in the air inlet channel (4), and the outer contour of the filter element (5) is adapted to the outer contour of the air inlet channel (4); the opening end of the air inlet channel (4) is provided with a pressure block (13), and the pressure block (13) is installed on the air inlet channel (4) by screws, and the pressure block (13) is fitted to the end face of the filter element (5).

8. The intelligent hand dryer with heat dissipation function according to claim 1, characterized in that, The air outlet channel (6) includes a pair of air outlet holes (61) that extend to the surface of the housing (2); a sensing component (14) is provided between the air outlet channel (6) and the base plate, and the sensing component (14) is installed on the outer wall of the air outlet channel (6); the sensing component (14) is electrically connected to the control circuit board (7) and extends to the surface of the housing (2).

9. The intelligent hand dryer with heat dissipation function according to claim 1, characterized in that, The bottom of the housing (2) is provided with several evenly distributed air inlets (15), which are located near the bottom of the guide plate (8).

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