CN216317306U - Hand drier - Google Patents

Abstract

The utility model discloses a hand dryer. The hand dryer includes: a housing; the air outlet pipeline assembly is communicated with the shell and comprises a rotating part and a static part which are communicated, the static part is connected between the rotating part and the shell, and the rotating part is provided with an air outlet and can rotate relative to the static part; and the heating component is positioned in the air outlet pipeline component and is arranged on the inner wall of the static part. The heating assembly is arranged on the static part, so that the heating assembly is not influenced by the movement of the rotating part, the heating function can be reliably realized, and a better heating effect is achieved.

Description

Hand drier

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of hand drying, in particular to a hand dryer.

[ background of the utility model ]

Hand dryers generally mainly include a heating type and a high-speed air drying type. The hand dryer mainly heated usually has a relatively high heating power of over 1000W and a very low motor power of less than 200W, and the hand dryer is typically characterized in that the air temperature is very high, water on the hands is taken away by means of relatively high-temperature air, and the hand dryer is relatively slow in hand drying and generally has a time of over 30 seconds. The high-speed air type hand dryer is characterized in that the air speed is very high and can reach more than 130 m/s, the hand drying speed is about 10 s, the heating power is low and is only hundreds of watts, the heating function is only to keep the comfort level, and the hand drying speed is not influenced basically. However, the noise generated by the high wind speed is relatively large.

Among them, in the prior art, the hand dryer use mode is comparatively single, and user experience is relatively poor. The utility model provides a hand dryer which can realize rotary air outlet and has a heating function.

[ Utility model ] content

The utility model aims to provide a hand dryer.

The purpose of the utility model is realized by the following technical scheme:

a hand dryer, comprising:

a housing;

the air outlet pipeline assembly is communicated with the shell and comprises a rotating part and a static part which are communicated, the static part is connected between the rotating part and the shell, and the rotating part is provided with an air outlet and can rotate relative to the static part; and

and the heating component is positioned in the air outlet pipeline component, and is arranged on the inner wall of the static part.

In this scheme, heating element sets up in the stationary part for heating element does not receive the influence of the motion of rotating part, thereby can realize the heating function comparatively reliably, has the heating effect of preferred.

Preferably, the heating assembly and the air outlet are at least partially staggered.

In this scheme, adopt above-mentioned structure setting, can reduce heating element from the influence of the air current circulation that the air outlet flows to be favorable to reducing the flow resistance, can reduce or even avoid heating element to the influence of air-out effect.

Preferably, the housing comprises a main housing and a steering housing, the steering housing is connected to the top side wall of the main housing, and an air outlet opening is formed at one end of the steering housing away from the main housing;

the air outlet pipeline assembly is communicated with the air outlet opening, and the heating assembly and the air outlet opening are at least partially arranged in a staggered mode.

In this scheme, adopt above-mentioned structure setting, can reduce heating element to the influence of the air current circulation of autonomic casing via air-out opening flow direction air outlet to be favorable to reducing the flow resistance, can reduce or even avoid heating element to the influence of air-out effect.

Preferably, the stationary part includes a first stationary part and a second stationary part that are conductive, the first stationary part being connected to the rotating part, the second stationary part being connected between the first stationary part and the housing;

the heating assembly is removably attached to the inner wall of the first stationary portion.

In this aspect, the stationary part is provided to include the first stationary part and the second stationary part that are communicated and connected, and when the first stationary part or the second part is damaged, only the corresponding first stationary part and the second stationary part may be replaced without replacing the entire stationary part. With heating element setting at first static part, be convenient for realize that heating element and the air-out opening of casing and the air outlet of rotating part all stagger the setting, are favorable to guaranteeing the heating effect. In addition, the heating assembly is detachably connected with the first static part, so that the heating assembly is convenient to mount and dismount, and other structural members are also convenient to mount and dismount.

Preferably, the heating assembly comprises:

a support plate; and

a heating element connected to the support plate;

an airflow passage is formed between the heating element and the support plate and communicated between the shell and the air outlet.

In this scheme, the existence of airflow channel between heating element and the backup pad is convenient for realize gaseous circulation to be favorable to reducing the flow resistance, reduce the influence to hand dryer air-out effect.

Preferably, the heating element is wound around the support plate, and an inner side of the heating element is formed with a gap from at least one side of the support plate to form the air flow path.

In this case, the air flow path may be formed between only one side of the support plate and the heating element, or between both sides of the support plate and the heating element. Wherein, compare in the former, the latter is more favorable to realizing gaseous circulation, and then is favorable to guaranteeing the air-out effect of hand dryer.

Preferably, the heating assembly further comprises a mounting plate, the support plate being mounted on the mounting plate, the mounting plate being detachably connected to the inner wall of the stationary part.

In this scheme, the mounting panel can play the supporting role to heating element and backup pad, is favorable to improving heating element's bulk strength, and then is favorable to improving heating element and hand dryer's other structural connection's reliability. The mounting plate may also provide a mounting carrier for other accessories, such as protection elements and temperature sensors, etc. as described below. In addition, the mounting plate also facilitates connection of the heating assembly to the stationary portion.

Preferably, the first stationary part extends into the second stationary part, the heating element and the support plate are located in the first stationary part, and the portion of the mounting plate extending out of the first stationary part is detachably connected to the inner wall of the second stationary part.

In this scheme, the first static part stretches into the second static part and is convenient for realize the connection of first static part and second static part, also is favorable to reducing the space that heating element occupy to be favorable to reducing the volume of hand dryer. The part of the mounting plate extending out of the first static part is connected to the inner wall of the second static part, so that the stability of the heating assembly can be improved on the basis of ensuring that the heating assembly is connected with the first static part which does not move but is not connected with the rotating part which does not move.

Preferably, the number of the heating assemblies and the number of the air outlet pipeline assemblies are at least two, and the mounting plates of the adjacent heating assemblies are connected;

the spacing regions of at least two of the heating elements at least partially coincide with the spacing regions of at least two of the outlet duct assemblies.

In this scheme, the air current that derives from the inside of casing gets into air-out pipeline subassembly and heating element through the interval region of coincidence or partial coincidence, under the effect of airflow channel, reaches the air outlet, can reduce the resistance of gas flow in-process, and the setting of heating element can not block the flow of air current basically, can not influence the air-out effect of hand dryer. In addition, the hand dryer is capable of achieving heating of multiple zones, and the hand dryer can be provided as a hand dryer having a small overall volume.

Preferably, the heating elements of at least two of the heating assemblies are connected in series into an electrical circuit.

In this scheme, adopt above-mentioned structural setting, the heating element among two at least heating element establishes ties earlier then inserts the circuit, compares in each heating element access circuit alone, and this structure is favorable to simplifying circuit structure, walks the line comparatively simply, also is favorable to reducing the whole space that occupies of heating element.

Compared with the prior art, the utility model has the following beneficial effects:

in this hand dryer, heating element sets up in the stationary part for heating element does not receive the influence of the motion of rotating part, thereby can realize the heating function comparatively reliably, has the heating effect of preferred.

[ description of the drawings ]

Fig. 1 is a schematic view of a hand dryer according to a preferred embodiment of the present invention.

Fig. 2 is a partial structural schematic view of a hand dryer according to a preferred embodiment of the present invention.

Fig. 3 is a partial structural view of a hand dryer in accordance with a preferred embodiment of the present invention.

Fig. 4 is another partial structural schematic view of the hand dryer according to a preferred embodiment of the present invention.

Fig. 5 is a schematic view of a portion of the air outlet duct assembly of the hand dryer in accordance with a preferred embodiment of the present invention.

Figure 6 is a schematic view of a further arrangement of the connection of two heating assemblies in a hand dryer in accordance with a preferred embodiment of the utility model.

Fig. 7 is a partial structural view showing the connection of two heating units in the hand dryer according to a preferred embodiment of the present invention.

Description of reference numerals:

10 heating assembly

101 heating element

102 support plate

1021 first mounting groove

103 mounting plate

1031 first end

1032 second end

1033 second mounting groove

104 first insulating element

105 temperature sensor

106 protective element

107 container

108 avoidance groove

109 second insulating element

110 position limiting part

20 main casing

30 steering housing

40 air outlet pipeline assembly

401 first stationary part

402 second stationary part

403 rotating part

404 stationary part

60 fixed plate

601 card slot

70 internal gas source

80 fastening plate

801 fastening hole

90 fastener

[ detailed description ] embodiments

This embodiment discloses a hand dryer. As shown in fig. 1-7, the hand dryer comprises a housing, an air outlet duct assembly 40 and a heating assembly 10. Wherein, air-out duct assembly 40 switches on with the casing, and air-out duct assembly is including the rotating part 403 and the static portion 404 that are linked together, and static portion 404 is connected between rotating part 403 and casing, is equipped with the air outlet on the rotating part 403 and rotatable for static portion 404. The heating assembly 10 is located in the air outlet duct assembly 40, and the heating assembly 10 is disposed on the inner wall of the stationary portion 404.

The heating assembly 10 is disposed on the stationary portion 404, so that the heating assembly 10 is not affected by the movement of the rotating portion 403, and thus the heating function can be reliably achieved, and a better heating effect is achieved.

It should be noted that the number of the air outlet duct assemblies 40 and the number of the heating assemblies 10 can be set to be at least one.

Note that the stationary portion 404 and the rotating portion 403 may be connected by any connection method that can be applied to this connection, as long as the rotating portion 403 can rotate with respect to the stationary portion 404. For example, the following connection methods can be adopted for connection: an annular clamping groove is formed in the end face, close to the rotating portion 403, of the stationary portion 404, an annular protruding portion is formed in the end face, close to the stationary portion, of the rotating portion 403, the clamping groove is matched with the protruding portion, and rotatable connection is achieved. The above-mentioned connection can also be realized, for example, with a pivot.

In addition, placing the heating assembly 10 in the outlet duct assembly rather than the housing also facilitates miniaturization of the hand dryer.

In a preferred embodiment, the heating element 10 is at least partially offset from the outlet.

Wherein, so set up, can reduce heating element 10 from the influence of the air current circulation that the air outlet flows to be favorable to reducing the flow resistance, can reduce or even avoid heating element 10 to the influence of air-out effect.

In another preferred embodiment, as shown in fig. 1-3, the housing comprises a main housing 20 and a turning housing 30, the turning housing 30 is connected to the top side wall of the main housing 20, and an air outlet opening is formed at one end of the turning housing 30 away from the main housing 20. One end of the air outlet pipeline assembly 40 is communicated with the air outlet opening, and the heating assembly 10 and the air outlet opening are at least partially arranged in a staggered mode.

Wherein, so set up, can reduce heating element 10 to independently casing 20 via the influence of the air current circulation of air-out opening flow direction air outlet to be favorable to reducing the flow resistance, can reduce or even avoid heating element 10 to the influence of air-out effect.

Of course, it is preferable to arrange the heating element 10 to be completely staggered with respect to the air outlet and the air outlet opening.

It should be noted that, what the two structural members are arranged in a staggered manner means that the two structural members are not shielded from each other in the air outlet direction.

As will be understood with reference to fig. 1-3 and 5, the stationary part 404 includes a first stationary part 401 and a second stationary part 402 that are in communication, the first stationary part 401 being connected to the rotating part 403, the second stationary part 402 being connected between the first stationary part 401 and the housing, the heating assembly 10 being detachably connected to the inner wall of the first stationary part 401. The stationary part 404 is provided to include a first stationary part 401 and a second stationary part 402 that are communicated and connected, and when the first stationary part 401 or the second part 402 is damaged, only the corresponding first stationary part 401 and second stationary part 402 may be replaced without replacing the entire stationary part 404. Set up heating element 10 at first static portion 401, be convenient for realize that heating element 10 and the air-out opening of casing and the air outlet of rotating part 403 all stagger the setting, are favorable to guaranteeing the heating effect. In addition, the heating assembly 10 is detachably connected to the first stationary portion 401, which facilitates the installation and removal of the heating assembly 10, and also facilitates the installation and removal of other structural members.

In an alternative embodiment, the stationary portion 404 may also be provided as a unitary structure.

In another preferred embodiment, as shown in fig. 2-3 and 6-7, the heating assembly 10 includes a support plate 102 and a heating element 101, the heating element 101 being attached to the support plate 102. An air flow passage is formed between the heating element 101 and the support plate 102, and the air flow passage communicates between the housing and the air outlet.

An air flow path, which means that an air flow can flow from one side of the heating element to the other, can be formed by a gap between the heating element 101 and other components, such as the above-mentioned support plate 102; or may be formed by a gap provided in the structure of the heating element itself.

The existence of the airflow passage between the heating element 101 and the supporting plate 102 facilitates the circulation of air, thereby being beneficial to reducing the flow resistance and reducing the influence on the air outlet effect of the hand dryer.

In another preferred embodiment, the heating element 101 (the heating element 101 includes, but is not limited to, a heating wire) is provided to be wound on the support plate 102, and the inner side of the heating element 101 is formed with a gap from at least one side of the support plate 102 to form an air flow path.

Here, the air flow path may be formed between only one side of the support plate 102 and the heating element 101, or between both sides of the support plate 102 and the heating element 101. Wherein, compare in the former, the latter is more favorable to realizing gaseous circulation, and then is favorable to guaranteeing the air-out effect of hand dryer.

Figure 4 schematically illustrates the airflow flow path within the hand dryer. Specifically, in this embodiment, the bottom of the main housing is provided with an air inlet, and the internal air source 70 in the main housing 20 generates a flowing air flow, which enters the flow channel in the main housing 20 through the air inlet and enters the flow channel of the turn housing 30, and passes through the air flow channel to reach the air outlet to be discharged. The internal air source 70 is mainly used to provide air flow, and may be a fan, an air pump, or other existing devices for generating air flow. The internal air supply 70 is secured within the main housing 20 and may be powered by an external power source or an internal power source. Wherein the dotted lines with arrows schematically show the ejection direction of the air flow. In another preferred embodiment, the heating assembly 10 further comprises a mounting plate 103, the support plate 102 is mounted on the mounting plate 103, and the mounting plate 103 is removably attached to the inner wall of the stationary portion 404.

Wherein, the mounting plate 103 can play a supporting role to the heating element 101 and the support plate 102, which is beneficial to improving the overall strength of the heating assembly 10, and is further beneficial to improving the reliability of the connection between the heating assembly 10 and other structures of the hand dryer. The mounting plate 103 may also provide a mounting carrier for other accessories, such as a protection element 106 and a temperature sensor 105, etc., as described below. In addition, the mounting plate 103 also facilitates the connection of the heating assembly 10 to the stationary portion 404.

In another preferred embodiment, the number of the heating assemblies 10 and the air outlet duct assembly 40 is at least two, and the mounting plates 103 of the adjacent heating assemblies 10 are connected. The spacing of the at least two heating elements 101 at least partially coincides with the spacing of the at least two outlet duct assemblies 40. It should be noted that two connected heating assemblies 10 are schematically shown in fig. 6-7. Specifically, as shown with reference to fig. 6-7, the mounting plates 103 of the respective heating members may be split into an integrated plate-like structure. Wherein, the air current that derives from the inside of casing gets into air-out pipeline assembly 40 and heating element 101 through the interval region of coincidence or partial coincidence, under the effect of airflow channel, reaches the air outlet, can reduce the resistance of gas flow in-process, and the setting of heating element 101 can not block the flow of air current basically, can not influence the air-out effect of hand dryer. In addition, the hand dryer is capable of achieving heating of multiple zones, and the hand dryer can be provided as a hand dryer having a small overall volume.

In another preferred embodiment, the heating elements 101 of at least two heating assemblies 10 are connected in series into an electrical circuit.

The heating elements 101 in the heating assemblies 10 are connected in series and then connected into the circuit, and compared with the case that each heating element 101 is connected into the circuit independently, the structure is beneficial to simplifying the circuit structure, the wiring is simpler, and the space occupied by the whole heating assembly 10 is also beneficial to reducing.

As shown in fig. 1-3 and 5, the first stationary portion 401 extends into the second stationary portion 402, the heating element 101 and the support plate 102 are located within the first stationary portion 402, and the portion of the mounting plate 103 extending out of the first stationary portion 401 is removably attached to the inner wall of the second stationary portion 402.

Wherein the extension of the first stationary part 401 into the second stationary part 402 facilitates the connection of the first stationary part 401 and the second stationary part 402 and also facilitates the reduction of the space occupied by the heating assembly 10 and thus the reduction of the volume of the hand dryer. The connection of the portion of the mounting plate 103 extending beyond the first stationary part 401 to the inner wall of the second stationary part 402 improves the stability of the heating assembly on the basis of ensuring that the heating assembly 10 is connected to the first stationary part 401 without movement, and not to the rotating part 403 with movement.

It should be noted that, in another preferred embodiment, both the rotating part 403 and the stationary part 404 may be provided as a double-layer structure including an inner pipe and an outer pipe. The heating assembly 10 is disposed within the corresponding inner conduit.

It should be noted that, in practice, the heating assembly 10 may be fastened (preferably by detachable connection) to the second stationary part 402 by any connection suitable for this purpose. Fig. 2-3 schematically illustrate one manner of connection by a fastening plate 80. The mounting plate 103 is provided with a fastening plate 80, the fastening plate 80 is provided with a fastening hole 801, and the heating apparatus 10 can be connected to the connection member 50 by passing the fastening member 90 through the fastening hole 801 and the connection hole of the connection member 50. In addition, the hand dryer further includes a fixing plate 60, the fixing plate 60 is mainly used for realizing the structural combination of the connecting member 50 itself, as shown in fig. 3, two ends of the fixing plate 60 are supported between the inner walls of two sides of the second stationary portion 402 along the radial direction, a clamping groove 601 is provided on the fixing plate 60, and the mounting plate 103 of the heating device 10 is clamped in the clamping groove 601, so that the fixing plate 60 can also improve the reliability of the connection of the heating assembly 10 and the second stationary portion 402. In another preferred embodiment, as shown in fig. 6-7, the heating assembly 10 further comprises a first insulating element 104, the outer jacket of the heating element 101 is provided with the first insulating element 104, the top of the heating element 101 is spaced from the inner wall of the first insulating element 104, and a gap is formed between the outer wall of the first insulating element 104 and the inner wall of the stationary portion 404.

The first heat insulation element 104 can prevent heat generated by the heating element 101 from being diffused to the outside, thereby preventing energy waste, improving heating effect, reducing or even preventing damage to an external structure, and preventing scalding.

As shown in fig. 3, the heating assembly 10 further includes a second heat insulation element 109, the second heat insulation element 109 is sleeved outside the first heat insulation element 104, and a limiting portion 110 for limiting the movement of the first heat insulation element 104 is disposed at an end of the second heat insulation element 109. Wherein a gap is formed between the outer wall of the second insulating element 109 and the inner wall of the stationary part 404. Therein, the stopper portion 110 is schematically shown as a boss portion.

On one hand, the limiting part in the second heat insulation element 109 can limit the first heat insulation element 104 to move, so that the fixing reliability of the heating assembly 10 can be improved, the heating effect can be ensured, the influence on the normal work of other structures can be reduced, and the normal work of the hand dryer can be ensured; on the other hand, the second heat insulation element 109 can also further perform a heat insulation function, which is beneficial to further improve the heating effect and further reduce or prevent damage to the external structure.

The first insulating element 104 and the second insulating element 109 are made of an insulating material, and in fact, the first insulating element 104 and the second insulating element 109 may be made of any insulating material suitable for the purpose. The first insulating element 104 and the second insulating element 109 are made of mica.

In another preferred embodiment, as shown in fig. 2-3 and 6-7, support plate 102 and mounting plate 103 are mated such that support plate 102 extends from one side of mounting plate 103 to the other side of mounting plate 103. The support plate 102 and the mounting plate 103 form a mounting frame with an X-shaped cross section, the mounting frame of the X-shaped cross section forms an airflow path consisting of four basically separated spaces, the heating assembly 101 may specifically select an electric heating wire, mounting grooves may be respectively arranged on the support plate 102 and the mounting plate 103 (as shown in fig. 7, the mounting groove on the support plate 102 is shown as a first mounting groove 1021, and the mounting groove on the mounting plate 103 is shown as a second mounting groove 1033) to wind the electric heating wire, and a half of the wound structure of the electric heating wire also has a gap and can form a part of the fluid path; the heating element 101 may also be a PTC heating element, an electric heating tube, or the like. The heating device may also comprise a plurality of support plates 102, and the cross-sectional shape of the support plate 102 and the mounting plate 103 constituting the mounting frame may be changed correspondingly.

The first insulating element 104 and the second insulating element 109 are both of a sleeve structure, the first insulating element 104 is sleeved on the second end of the mounting plate 103, and the heating element 101 and the support plate 102 are located inside the first insulating element 104.

The supporting plate 102 and the mounting plate 103 are connected in an inserting manner, the connecting manner of the supporting plate and the mounting plate is simple, and the supporting plate and the mounting plate can provide more accommodating spaces for arranging the heating elements 101 after being connected. In addition, the first insulating element 104 and the second insulating element 109 are provided as a sleeve structure to facilitate connection to both the mounting plate 103 and the external structure. Meanwhile, the first heat insulation element 104 is arranged at the end, with the heating element 101, of the mounting plate 103, so that the weight of the heating assembly 10 is reduced, and consumables are reduced.

It should be noted that in other alternative embodiments, the first insulating element 104 and the second insulating element 109 may be provided in other configurations, and in addition, the first insulating element 104 and the second insulating element 109 may be provided over the entire extension of the mounting plate 103.

In another preferred embodiment, shown in figure 6, the hand dryer further comprises a protection device provided on the mounting plate 103, the protection device comprising a temperature sensor 105, a control element and a protection element 106. Wherein the temperature sensor 105 is adapted to detect a temperature and to generate a temperature signal and to transmit the temperature signal to the control element when the detected temperature exceeds a threshold value, the control element being adapted to act on the protection element 106 to switch the heating assembly 10 from the active state to the inactive state.

Wherein, protection device can make heating element 10 switch to the non-activated state when detecting that the temperature is higher to can be in presetting the within range with temperature control, be favorable to guaranteeing the whole security including heating device's hand dryer, also be favorable to improving the life of hand dryer.

In a preferred embodiment, the protection element 106 may be provided as a temperature-controlled switch or a fuse. The fuse wire is small in size and small in space requirement, and needs to be replaced after being fused. The temperature control switch can be used repeatedly, but has a larger size and a relatively larger space requirement compared with a fuse wire. The figure schematically shows a fuse.

In another preferred embodiment, the mounting plate 103 is provided with a receiving groove 107, an avoiding groove 108 is provided at a position corresponding to the first receiving groove 107 at the bottom of the supporting plate 102, at least a portion of the protection element 106 is disposed in the receiving groove 107, and the protection element 106 is located in a space enclosed by the receiving groove 107 and the avoiding groove 108. The avoidance groove 108 and the accommodating groove 107 are matched, so that the requirement for the thickness of the mounting plate 103 can be reduced, and the space utilization rate can be improved.

It should be noted that in other alternative embodiments, the protection element 106 may also be provided directly on the mounting plate 103.

In the hand dryer, the heating assembly 10 is disposed on the stationary portion 404, so that the heating assembly 10 is not affected by the movement of the rotating portion 403, thereby reliably realizing the heating function and having a better heating effect.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.

Claims (10)

1. A hand dryer, characterized in that it comprises:

a housing;

the air outlet pipeline assembly is communicated with the shell and comprises a rotating part and a static part which are communicated, the static part is connected between the rotating part and the shell, and the rotating part is provided with an air outlet and can rotate relative to the static part; and

and the heating component is positioned in the air outlet pipeline component, and is arranged on the inner wall of the static part.

2. A hand dryer as claimed in claim 1, wherein: the heating component and the air outlet are at least partially arranged in a staggered mode.

3. A hand dryer as claimed in claim 1, wherein: the shell comprises a main shell and a steering shell, the steering shell is connected to the side wall of the top of the main shell, and an air outlet opening is formed in one end, far away from the main shell, of the steering shell;

the air outlet pipeline assembly is communicated with the air outlet opening, and the heating assembly and the air outlet opening are at least partially arranged in a staggered mode.

4. A hand dryer as claimed in claim 1, wherein: the stationary part includes a first stationary part and a second stationary part that are conductive, the first stationary part is connected to the rotating part, and the second stationary part is connected between the first stationary part and the housing;

the heating assembly is removably attached to the inner wall of the first stationary portion.

5. Hand dryer according to claim 4, characterized in that: the heating assembly includes:

a support plate; and

a heating element connected to the support plate;

an airflow passage is formed between the heating element and the support plate and communicated between the shell and the air outlet.

6. Hand dryer according to claim 5, characterized in that: the heating element is wound around the support plate, and an inner side of the heating element is formed with a gap from at least one side of the support plate to form the air flow path.

7. Hand dryer according to claim 5, characterized in that: the heating assembly further comprises a mounting plate, the supporting plate is mounted on the mounting plate, and the mounting plate is detachably connected to the inner wall of the stationary part.

8. Hand dryer according to claim 7, characterized in that: the first stationary portion extends into the second stationary portion, the heating element and the support plate are located on the first stationary portion, and the portion of the mounting plate extending out of the first stationary portion is detachably connected to the inner wall of the second stationary portion.

9. Hand dryer according to claim 7, characterized in that: the number of the heating assemblies and the number of the air outlet pipeline assemblies are at least two, and the mounting plates of the adjacent heating assemblies are connected;

the spacing regions of at least two of the heating elements at least partially coincide with the spacing regions of at least two of the outlet duct assemblies.

10. A hand dryer as claimed in claim 9, wherein: the heating elements of at least two of the heating assemblies are connected in series into an electrical circuit.

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