Hand dryer

Abstract

The utility model provides a hand dryer which comprises a shell, an air inlet and an air outlet are formed in the shell, an air pipe, a control mainboard and a driving module are arranged in the shell, an air inlet is formed in one end of the air pipe, an air outlet part is obliquely arranged at the other end of the air pipe, an air outlet is formed in the air outlet part, the air inlet is communicated with the air inlet, and the air outlet is communicated with the air outlet. A fan and a heating assembly are arranged in the air pipe, the fan is located at one end of the air pipe, the heating assembly is located between the fan and the air outlet part, the control mainboard is connected with the driving module and the heating assembly, the driving module is connected with the fan and located above the air inlet, and the fan is driven by a high-speed direct-current brushless motor. According to the air conditioner, the driving module is arranged above the air inlet, traditional heat dissipation fins are omitted, and the high-speed brushless motor is used for driving, so that the overall size of the air conditioner is small, the air conditioner can be installed in a small space, and the user experience is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to hand dryer technical field, especially a kind of hand dryer. BACKGROUND

[0002] Hand dryer is generally installed in bathroom or wash basin, for blowing dry moisture on user's hand.

[0003] The motor of existing hand dryer is relatively large in size, and the driving module inside the hand dryer needs to be provided with relatively large heat dissipation fins for heat dissipation, to ensure that the hand dryer can work normally.

[0004] The driving module of prior art is generally arranged in the middle of the hand dryer, due to the relatively large size of the heat dissipation fins and the relatively large size of the motor, the overall equipment of the hand dryer is relatively large in size, and the space occupation is relatively large, which is not convenient for installation and use in smaller space, especially for household use, the larger hand dryer has higher requirement for installation space.

[0005] Therefore, the prior art needs to be improved and enhanced. CONTENT OF UTILITY MODEL

[0006] In view of the above shortcomings of prior art, the utility model provides a kind of hand dryer, small and exquisite, can be installed in smaller space.

[0007] In order to achieve the above purpose, the utility model takes the following technical scheme:

[0008] A kind of hand dryer, including shell, the shell is provided with air inlet and air outlet, the shell is provided with air pipe, control mainboard and driving module, one end of the air pipe is provided with air inlet, the other end of the air pipe is provided with air outlet portion, the air outlet portion is provided with air outlet, the air inlet is communicated with the air inlet, the air outlet is communicated with the air outlet, the air pipe is provided with fan and heating assembly, the fan is located in one end of the air pipe, the heating assembly is located between the fan and the air outlet portion, the control mainboard is connected with the driving module and the heating assembly, the driving module is connected with the fan, and the driving module is located above the air inlet, the fan uses high-speed direct current brushless motor drive.

[0009] Further, the air outlet portion is integrally formed with the air pipe.

[0010] Further, the air pipe includes upper shell and lower shell, the upper shell and the lower shell are clamped or fixed by screw.

[0011] Further, the air inlet and the air outlet are located at the bottom of the shell, and a filter is arranged in the air inlet.

[0012] Further, the included angle between the air outlet and the axis of the air duct is 30-45 degrees.

[0013] Further, the air outlet is provided with a cold air sensor and a hot air sensor on both sides, which are connected with the control mainboard.

[0014] Further, the back of the shell is provided with a groove for placing the plug.

[0015] Further, one side of the groove is provided with a groove for placing the wire.

[0016] Further, the heating assembly comprises a bracket and a heating wire arranged on the outer periphery of the bracket.

[0017] Further, the bracket is formed by a plurality of pieces which are mutually clamped, and the pieces are distributed circumferentially.

[0018] Compared with the prior art, the hand dryer provided by the utility model, comprising a shell, an air inlet and an air outlet are arranged on the shell, a wind pipe, a control mainboard and a driving module are arranged in the shell, an air inlet is arranged at one end of the wind pipe, an air outlet is arranged at the other end of the wind pipe, the air outlet is arranged on the air outlet, the air inlet is communicated with the air inlet, the air outlet is communicated with the air outlet, a fan and a heating assembly are arranged in the wind pipe, the fan is located at one end of the wind pipe, the heating assembly is located between the fan and the air outlet, the control mainboard is connected with the driving module and the heating assembly, the driving module is connected with the fan, and the driving module is located above the air inlet, and the fan adopts a high-speed direct-current brushless motor drive. For the utility model, the driving module is arranged above the air inlet, the traditional heat dissipation fin is saved, and the high-speed brushless motor is used for driving, so that the overall size of the equipment is small, the equipment can be installed in a small space, and the user experience is better. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings required to be used in the embodiment or the prior art description will be simply introduced below, 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 according to the structures shown in the drawings without creative labor.

[0020] Figure 1 The angle structure schematic view of the hand dryer provided by the utility model.

[0021] Figure 2 The cross-sectional schematic view of the hand dryer provided by the utility model.

[0022] Figure 3 The partial assembly schematic view of the hand dryer is provided.

[0023] Figure 4 The partial explosion view of the hand dryer is provided.

[0024] Figure 5 The structure schematic view of the hand dryer from another angle is provided.

[0025] Explanation of the drawing mark:

[0026] Shell-1, air inlet-2, air outlet-3, air pipe-4, driving module-5, air inlet-6, air outlet-7, air outlet-8, fan-9, heating assembly-10, upper shell-11, lower shell-12, groove-13, groove-14, support-15, sheet body-16. Specific implementation

[0027] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The drawings show embodiments of the present application. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application.

[0029] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For ordinary skilled persons in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0030] In addition, the terms "first" and "second" and the like used in the present application can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element. As used herein, the singular forms "a", "an" and "the" can also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "include / contain" or "have" or the like specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more other features, integers, steps, operations, components, parts or combinations thereof.

[0031] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on another element or there can be a mediating element. When an element is considered to be "connected" to another element, it can be directly connected to another element or a mediating element can be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.

[0032] In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the utility model.

[0033] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 The hand dryer provided by the utility model, including casing 1, be provided with air inlet 2 and air outlet 3 on casing 1, be provided with air pipe 4, control mainboard and drive module 5 in casing 1, one end of air pipe 4 is provided with air inlet 6, the other end of air pipe 4 is provided with air outlet 7, air outlet 7 is provided with air outlet 8, air inlet 2 is communicated with air inlet 6, air outlet 8 is communicated with air outlet 3, fan 9 and heating assembly 10 are provided in air pipe 4, fan 9 is located in one end of air pipe 4, heating assembly 10 is located between fan 9 and air outlet 7, control mainboard is connected with drive module 5 and heating assembly 10, drive module 5 is connected with fan 9, and drive module 5 is located above air inlet 6, fan 9 adopts high-speed direct-current brushless motor drive.

[0034] It can be understood that when the fan 9 is started, the air inlet 6 forms an air flow, that is, the air flow can take away the heat generated on the driving module 5, thereby achieving the effect of heat dissipation of the driving module 5, thereby eliminating the installation of the traditional heat dissipation fins, and the high-speed brushless motor is used for driving, the high-speed brushless motor has high speed and small size, so that the overall device size of the hand dryer is made more compact, and the fan 9 and the heating assembly 10 are installed in the air pipe 4, that is, most of the parts of the hand dryer are installed in the air pipe 4, so that the shell 1 is convenient for modeling.

[0035] It should be explained that since the shell 1 has small size, when the hand dryer is installed on the wall, the shell 1 has small distance protruding outward relative to the wall, if the air in the air outlet 8 blows vertically downward, the user has to approach the wall to dry hands, which easily causes the hands to contact the wall, and the user experience is poor, and the other end of the air pipe 4 of the present application is provided with the air outlet portion 7, which can make the air in the air outlet portion 7 blow outwardly and obliquely, so as to facilitate the user to dry hands, and the user experience is better.

[0036] Compared with the prior art, in the technical scheme of the present application, the driving module 5 is arranged above the air inlet 6, the traditional heat dissipation fins are eliminated, and the high-speed brushless motor is used for driving, so that the overall device size is small and compact, and the device can be installed in a small space, and the user experience is better. The air inlet passes through the driving module 5, the high-speed brushless motor and the heating assembly 10 in sequence, the high-speed cold air is used for heat dissipation of the driving module 5 and the high-speed brushless motor, and the driving module 5 and the high-speed brushless motor are used for preheating the air inlet, thereby reducing the power consumption of the heating assembly 10, and the power of the whole system is greatly reduced, and the power is reduced by about 40% compared with the existing hand dryer.

[0037] Further, the air outlet portion 7 and the air pipe 4 are integrally formed, the manufacturing process is simple, and the air outlet portion 7 and the air pipe 4 are directly connected stably and have good sealing performance.

[0038] Further, the air pipe 4 comprises an upper shell 11 and a lower shell 12, and the upper shell 11 and the lower shell 12 are clamped or fixed by screws. It can be understood that when the fan 9 and the heating assembly 10 need to be installed, the fan 9 and the heating assembly 10 are only fixed in the lower shell 12, and then the upper shell 11 and the lower shell 12 are fixed to complete the installation, and the installation process is simple and efficient.

[0039] Further, the air inlet 2 and the air outlet 3 are located at the bottom of the shell 1, which can prevent dirt from easily falling into the air inlet 2 or the air outlet, thereby affecting the normal use of the hand dryer, and the air inlet 2 is provided with a filter, which can filter and disinfect the air to ensure that the air entering from the air inlet 6 is clean and sanitary.

[0040] Further, the included angle between the air outlet 7 and the axis of the air pipe 4 is 30°-45°, preferably, the included angle is 40°, and the angle of the air from the air outlet 7 is optimal, which can be suitable for most people of different heights.

[0041] Further, the air outlet 3 is provided with a cold air sensor and a hot air sensor on both sides, and the cold air sensor and the hot air sensor are connected with the control mainboard. In an embodiment, the cold air sensor and the hot air sensor are arranged on the left side and the right side of the air outlet 3 respectively, when the user enters from the left side of the air outlet 3 to the lower side of the air outlet 3, the cold air sensor detects the hand of the user, at this time, the control mainboard controls the heating assembly 10 not to work, so that the air from the air outlet 3 is cold air, on the contrary, when the hand of the user enters from the right side of the air outlet 3 to the lower side of the air outlet 3, the air from the air outlet 3 is hot air, the present application can control the air outlet 3 to output cold air or hot air according to the user entering from different directions, that is, it can blow cold air or hot air according to the actual needs of the user, and the user has a good experience.

[0042] Further, as shown in the Figure 5 The back of the shell 1 is provided with a groove 13 for placing a plug. It should be noted that when the hand dryer is installed on the wall, the groove 13 can be buckled on the socket on the wall, that is, after the plug of the hand dryer is connected with the socket, the groove 13 is buckled on the socket, which has the effect of hiding the installation of the socket.

[0043] Further, as shown in the Figure 5 One side of the groove 13 is provided with a groove 14 for placing an electric wire. It can be understood that when the space of the socket on the wall is insufficient, a plug needs to be used for wire installation, and the electric wire can be hidden in the groove 14, so that the back of the shell 1 is installed in close contact with the wall surface.

[0044] Further, as shown in the Figure 4As shown, the heating assembly 10 comprises a support 15 and heating wires arranged at the periphery of the support 15. Preferably, the support 15 is formed by a plurality of pieces 16 which are mutually clamped, and the pieces 16 are distributed in the circumferential direction. It should be noted that the pieces 16 are distributed in the circumferential direction and are mutually clamped, so that the size of the support 15 can be made more compact, and the heating wires arranged at the periphery of the support 15 are arranged in a wrinkled manner, so that the contact area of air with the heating wires is larger, thereby achieving a better heating effect.

[0045] In summary, the hand dryer provided by the utility model, the upper shell and the lower shell are clamped or fixed by screws, the installation process is simple and efficient, the filter can filter and disinfect air, ensuring that the air entering from the air inlet is clean and sanitary, the cold sensor and the hot sensor can blow cold air or hot air according to the actual needs of users, the user experience is good, the recess can hide the socket installation effect, and the groove enables the back of the shell to be installed in close contact with the wall.

[0046] The embodiments of the utility model are described above in combination with the drawings, but the utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative but not restrictive, and the person skilled in the art can make many forms under the inspiration of the utility model without departing from the purpose of the utility model and the scope protected by the claims, and these all belong to the protection scope of the utility model.

Claims

1. A hand dryer, characterized in that, Includes a housing (1), on which an air inlet (2) and an air outlet (3) are provided. Inside the housing (1) are a duct (4), a control motherboard, and a drive module (5). One end of the duct (4) has an air inlet (6), and the other end of the duct (4) has an inclined air outlet (7) with an air outlet (8). The air inlet (2) is connected to the air inlet (6), and the air outlet (8) is connected to the air outlet (3). A fan (9) and a heating element (10) are installed inside the duct (4). The fan (9) is located at one end of the duct (4), and the heating element (10) is located between the fan (9) and the air outlet (7). The control motherboard is connected to the drive module (5) and the heating element (10). The drive module (5) is connected to the fan (9), and the drive module (5) is located above the air inlet (6). The fan (9) is driven by a high-speed DC brushless motor.

2. The hand dryer according to claim 1, characterized in that, The air outlet (7) and the air duct (4) are integrally formed.

3. The hand dryer according to claim 2, characterized in that, The duct (4) includes an upper shell (11) and a lower shell (12), which are snapped together or fixed by screws.

4. The hand dryer according to claim 1, characterized in that, The air inlet (2) and the air outlet (3) are both located at the bottom of the housing (1), and a filter is provided in the air inlet (2).

5. The hand dryer according to claim 1, characterized in that, The included angle between the air outlet (7) and the axis of the air duct (4) is 30°-45°.

6. The hand dryer according to claim 1, characterized in that, A cold air sensor and a hot air sensor are respectively provided on both sides of the air outlet (3), and the cold air sensor and the hot air sensor are connected to the control motherboard.

7. The hand dryer according to claim 1, characterized in that, The back of the housing (1) is provided with a groove (13) for placing the plug.

8. The hand dryer according to claim 7, characterized in that, A groove (14) for placing wires is provided on one side of the groove (13).

9. The hand dryer according to claim 1, characterized in that, The heating component (10) includes a bracket (15) and a heating wire disposed on the outer periphery of the bracket (15).

10. The hand dryer according to claim 9, characterized in that, The support (15) is formed by interlocking several pieces (16), and the pieces (16) are distributed circumferentially.

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