CN216317304U - Hand drier - Google Patents

Abstract

The utility model provides a hand dryer, which comprises a shell, wherein the shell is of an independent structure, the bottom of the hand dryer is provided with an air inlet, a filter is arranged at the air inlet, and water drops and water vapor splashed in the environment cannot enter the shell under the obstruction of the filter, so that the running safety and the service life of the hand dryer are ensured.

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 ]

The hand dryer is widely applied at present, is generally applied to office buildings and public places, and for the independent hand dryer, if the waterproof capability of the hand dryer is not in place, the use scene of the hand dryer can be limited, and the user experience is influenced.

Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.

[ 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:

the hand dryer is characterized by comprising a shell, wherein the shell is of an independent structure, an air inlet is formed in the bottom of the hand dryer, and a filter is arranged at the air inlet.

In this scheme, under the separation of filter, the inside that water droplet and steam that splash in the environment can not enter into the casing to guaranteed the operation safety and the life of hand dryer, consequently, even place the hand dryer that will have independent structure in the mesa department that is close to the basin, also need not to worry the problem that the hand dryer intakes, this restriction that makes hand dryer use occasion is less, consequently has more extensive application scenario.

Preferably, the outer side of the filter screen of the filter is covered with a hydrophobic membrane. The hydrophobic membrane enables the filter to be kept dry, improves the water-proof performance of the filter, and simultaneously prevents the filter from mildewing or breeding bacteria due to humidity.

Preferably, a circuit board is arranged in the shell, and the circuit board is covered with waterproof paint. Even if water enters the shell, the circuit board can be still prevented from being short-circuited or rusted under the blocking effect of the waterproof paint, and the waterproof performance of the hand dryer is further improved.

Preferably, the outer surface of the housing is gradually narrowed from bottom to top. When water drops or water flows downwards along the shell to the air inlet, the flowing direction is outward, so that the shell with the shape can prevent or reduce the possibility that the water drops or the water flows enter the air inlet, and the waterproof capability of the hand device is enhanced.

Preferably, the housing is an integrally formed structure. Compare in the casing that forms by a plurality of parts concatenation, integrated into one piece's casing does not have the gap like this, and waterproof performance is better.

Preferably, the housing comprises an upper shell and a lower shell which are connected, the upper shell is provided with a first boss extending towards the lower shell, and the first boss is at least partially positioned at the outer side of the lower shell. If water drops reach the gap between the upper shell and the lower shell, the water drops cannot flow upwards into the shell under the blocking of the first boss.

Preferably, the lower case has a second boss extending toward the upper case, the second boss being located inside the first boss. The second boss can block water drops from entering the housing at the inner side of the first boss.

Preferably, the inner side surface of the first boss is attached to the outer side surface of the second boss, so that the upper shell and the lower shell are sealed. First boss and the laminating realization of second boss are sealed each other, prevent that steam from entering into inside the casing through the gap loss between epitheca and the inferior valve.

Preferably, the height of the second boss is not less than the height of the first boss. The top of the second boss can be abutted against the downward surface of the upper shell, so that a better sealing effect is realized.

Preferably, the first boss forms an annular structure along the circumferential direction of the upper shell. First boss encircles in the whole circumference of casing, prevents that waterproof weak position from appearing in the casing.

Compared with the prior art, the utility model has the following beneficial effects: the filter is arranged at the air inlet of the hand dryer, and splashed water drops and water vapor are prevented from entering the shell under the blocking of the filter, so that the hand dryer has good waterproof performance, and therefore, the hand dryer has fewer requirements on the use environment and has wider application scenes.

[ description of the drawings ]

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

Fig. 2 is a schematic view of the internal structure of the hand dryer according to an embodiment of the present invention.

Fig. 3 is an enlarged view of fig. 2 at a.

[ detailed description ] embodiments

The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.

Referring to fig. 1 and 2, the embodiment discloses a hand dryer, which includes a housing 1, an air inlet 2 is disposed at the bottom of the hand dryer, an air outlet is disposed at the upper part of the hand dryer, and air flow is guided upwards from the air inlet 2 and finally flows out from the air outlet under the driving of an air source 4.

As shown in fig. 2, the air supply 4 of the hand dryer is arranged inside the casing 1, and the air supply 4 is mainly used for providing air flow, and can be an existing air flow generating device such as a fan, an air pump and the like. The air source 4 can be driven by an external power supply or a built-in power supply. The start and stop of the gas source 4 may be controlled by a control unit. The activation of the air supply 4 can be controlled by a signal from a sensor located on the air outlet 3 or elsewhere to sense the approach of the user's hand. In this embodiment, the air outlet portion 3 extends from the housing 1 to the side portion, so that the airflow flows laterally in the air outlet portion 3, and the air outlet is disposed at the lower portion of the air outlet portion 3. Therefore, the air flow is lifted by a certain height and then turned, so that the air outlet part has a certain distance from the plane on which the hand dryer is placed, and the air flow has a space for blowing out downwards.

The housing 1 has a separate structure, and the housing 1 of the separate structure is not attached to any structure. In particular, the air supply 4 of the present embodiment is integrated within the housing 1 and the hand dryer does not require external access to the air supply 4, so that the hand dryer can be operated independently without attachment, thereby enabling the hand dryer to be placed in any location for operation.

Referring to fig. 2, the filter 5 is arranged at the air inlet, and water drops and water vapor splashed in the environment cannot enter the shell 1 under the blocking of the filter 5, so that the operation safety and the service life of the hand dryer are ensured. Particularly, the air inlet 2 of the present embodiment is located at the bottom of the hand dryer, so that the air flow generated by the air outlet located above blows water drops to the air inlet 2, and the waterproof function of the filter 5 is particularly important, so as to prevent the water drops from entering the inside of the housing 1 to cause short circuit or corrosion. In this embodiment, the filter 5 may be a HEPA filter 5, which can efficiently filter out water droplets and moisture.

Therefore, even if the hand dryer with an independent structure is placed on the table top close to the water tank, the problem that the hand dryer enters water is not needed to be worried about, so that the limitation of the use occasion of the hand dryer is less, and the application scene is wider. The hand dryer can be used not only in public but also in the home.

In the embodiment, a bottom cover 7 is disposed below the casing 1, and the air inlet 2 is formed by a space between the casing 1 and the bottom cover 7. The filter 5 is detachably mounted to the inside of the housing 1, and the filter 5 is located above the bottom cover 7. When the bottom cover 7 is removed, the filter 5 can be taken out for cleaning or replacement to maintain a good filtering effect at the air inlet 2.

The outside of the filter screen of filter 5 is covered with hydrophobic membrane (for example, PP membrane), and hydrophobic membrane makes filter 5 can not become wet and keep dry to block moisture outside filter 5, further improve the water proof performance of filter 5, simultaneously, hydrophobic membrane can prevent that filter 5 from going mildy or breeding the bacterium because of the humidity, and this makes the hand dryer can keep clean and health, avoids the hand dryer to become the pollution sources.

A circuit board 6 (e.g., a control circuit board 6 for controlling the gas source 4) is provided in the housing 1, and the circuit board 6 is coated with waterproof paint. Therefore, even if water enters the shell 1, the circuit board 6 can be prevented from being short-circuited or rusted under the blocking action of the waterproof paint, the waterproof performance of the hand dryer is further improved, and the service life of the hand dryer is prolonged.

As shown in fig. 1 and 2, the outer surface of the casing 1 gradually narrows from bottom to top, and the water drops blown from the hands drop onto the casing 1, and when the water drops flow downwards to the air inlet 2 along the casing 1, the flow direction is outward rather than inward towards the air inlet 2, that is, the casing 1 plays a role of preventing water eaves. The shape of the housing 1 thus prevents or reduces the possibility of water droplets entering the air inlet 2, thereby enhancing the waterproof capability of the hand piece.

As a preferred embodiment, the housing 1 is an integrally formed structure, and compared with the housing 1 formed by splicing a plurality of parts, the integrally formed housing 1 has no gap, so that water drops can be prevented from entering the housing 1 from the gap, and the waterproof performance is better.

As another preferred embodiment, the housing 1 may be formed by splicing a plurality of parts to meet the requirements of processing, assembling, and the like. As shown in fig. 1 and 2, in the present embodiment, the housing 1 includes an upper housing 11 and a lower housing 12 connected together, and the upper housing 11 and the lower housing 12 are jointly spliced into the entire housing 1.

As shown in fig. 3, the upper case 11 has a first boss 111 extending toward the lower case 12, the first boss 111 being located at least partially outside the lower case 12. If water drops reach the gap between the upper case 11 and the lower case 12, the water drops do not flow upward into the inside of the case 1 under the blocking of the first bosses 111, thereby achieving waterproofing at the gap between the upper case 11 and the lower case 12.

Accordingly, the lower case 12 has a second boss 121 extending toward the upper case 11, the second boss 121 being located inside the first boss 111. The second bosses 121 can block water droplets from entering the housing 1 at the inner sides of the first bosses 111.

The inner side surface of the first boss 111 is attached to the outer side surface of the second boss 121, so that the upper case 11 and the lower case 12 are sealed. The first boss 111 and the second boss 121 are attached to each other, so that the water vapor is prevented from escaping into the housing 1 through a gap between the upper case 11 and the lower case 12. Specifically, the first boss 111 and the second boss 121 may be sealed by a sealant, a sealing ring, a sealing strip, or the like.

The outer side surface of the first boss 111 and the outer side surface of the upper shell 11 are in smooth transition, and meanwhile, the outer side surface of the first boss 111 and the outer side surface of the lower shell 12 are also in smooth transition, so that water drops can smoothly flow down from the surface of the shell 1, and the water drops are prevented from being gathered on the surface of the shell.

Referring to fig. 3, the height of the second bosses 121 is not less than the height of the first bosses 111. The top of the second protrusion 121 can abut against a downward surface of the upper housing 11 to achieve a better sealing effect. Specifically, in this embodiment, the upper case 11 has a first surface 112 facing downward, the lower case 12 has a second surface 122 facing upward, the first boss 111 extends downward from the first surface 112, the second boss 121 extends upward from the second surface 122, and the height of the first boss 111 is smaller than that of the second boss 121, so that the top of the second boss 121 can be abutted against the first surface 112 of the upper case 11, and therefore, seals can be formed between the second boss 121 and the first surface 112 and between the second boss 121 and the first boss 111, and the waterproof performance of the case 1 is further improved.

The first boss 111 forms an annular structure along the circumferential direction of the upper case 11. The first boss 111 surrounds the entire circumference of the housing 1, preventing the housing 1 from being weak in waterproof. Similarly, the second boss 121 also forms an annular structure along the circumferential direction of the lower case 12, and cooperates with the first case 1 to form a seal.

To sum up, the hand dryer of this embodiment is provided with filter 5 in air intake 2 department, and under the separation of filter 5, avoid inside water droplet and the steam that splashes get into casing 1 for the hand dryer has good waterproof performance, consequently, the hand dryer is less to service environment's requirement, has more extensive application scenario.

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. The utility model provides a hand dryer, its characterized in that, hand dryer includes the casing, the casing has independent structure, the bottom of hand dryer is provided with the air intake, air intake department is provided with the filter, the upper portion of hand dryer is provided with the air outlet, goes out the air-out portion certainly the casing extends to the lateral part, so that the air current is in go out air-out portion lateral flow, the air outlet set up in the lower part of air-out portion.

2. A hand dryer as claimed in claim 1, wherein: the outer side of the filter screen of the filter is covered with a hydrophobic membrane.

3. A hand dryer as claimed in claim 1, wherein: a circuit board is arranged in the shell, and waterproof paint is coated on the circuit board.

4. A hand dryer as claimed in claim 1, wherein: the outer surface of the shell is gradually narrowed from bottom to top.

5. Hand dryer according to any of claims 1-4, characterized in that: the shell is of an integrally formed structure.

6. Hand dryer according to any of claims 1-4, characterized in that: the casing includes epitheca and the inferior valve that connects, the epitheca has towards the first boss of inferior valve extension, first boss is located at least partially the outside of inferior valve.

7. Hand dryer according to claim 6, characterized in that: the lower case has a second boss extending toward the upper case, the second boss being located inside the first boss.

8. Hand dryer according to claim 7, characterized in that: the inner side surface of the first boss is attached to the outer side surface of the second boss, so that the upper shell and the lower shell are sealed.

9. Hand dryer according to claim 7, characterized in that: the height of the second boss is not less than the height of the first boss.

10. Hand dryer according to claim 6, characterized in that: the first boss forms an annular structure along the circumferential direction of the upper shell.

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