A fluid ejection structure

Abstract

A fluid ejection structure provided by the present invention includes: a housing having an ejection channel and an opening communicating with the ejection channel; a cover rotatably covering the opening and having a notch communicating with the opening; a driving assembly for driving the cover to rotate; a detection assembly for detecting the orientation of the notch and the distance between the human body and the fluid ejection structure, and sending out first position information when the distance between the human body and the fluid ejection structure is less than or equal to a preset distance; a controller respectively connected to the driving assembly and the detection assembly, and configured to control the operation of the driving assembly when receiving the first position information, so that the notch of the cover rotates in a direction away from the human body. This fluid ejection structure can prevent the fluid from directly spraying at the user.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly relates to a fluid ejection structure. Background Art

[0002] With the improvement of living standards, people's requirements for the living environment are also getting higher and higher. Generally, temperature can most directly affect people's feelings about the living environment. Similarly, humidity will also have an impact on people's lives and health. In autumn and winter, the air humidity is often low, and due to the widespread use of indoor air conditioners or heaters, it is easy to cause dry air. A humidifier can create an ideal indoor humidity and care for the health of family members.

[0003] A full-range disinfection humidifier is disclosed in the prior art. A rotating pipe is installed in the middle of the top of the humidifier main body. The rotating pipe is in sealed rotational connection with the humidifier main body. A driven gear is installed and fixed on the rotating pipe. The driven gear is meshed and connected with a driving gear installed on the output shaft of a rotating motor. The rotating pipe can be driven to rotate by the rotating motor. The rotating motor is fixedly arranged on a motor base, and the motor base is fixedly arranged on the top of the humidifier main body. A protective cover for covering the driven gear, the driving gear, the motor base and the rotating motor is further arranged on the top of the humidifier main body. The upper end of the rotating pipe is further connected with a metal flexible pipe, and the position of the outlet of the metal flexible pipe can be adjusted arbitrarily to improve the humidification effect.

[0004] The outlet of the above humidifier can rotate. When the user approaches or operates the humidifier, it is easy to directly spray the user, causing discomfort to the user. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the humidifier in the prior art is easy to directly spray the user, so as to provide a fluid ejection structure that can avoid directly spraying the user.

[0006] To solve the above technical problem, a fluid ejection structure provided by the present invention includes:

[0007] A housing, provided with an ejection channel and an opening communicated with the ejection channel;

[0008] A cover body, rotatably covering the opening and provided with a notch communicated with the opening;

[0009] A driving assembly, used for driving the cover body to rotate;

[0010] A detection assembly, used for detecting the orientation of the notch and detecting the distance between the human body and the fluid ejection structure, and sending out first position information when the distance between the human body and the fluid ejection structure is less than or equal to a preset distance;

[0011] A controller, which is respectively connected to the driving component and the detection component, and is configured to control the operation of the driving component when receiving the first position information, so that the notch of the cover rotates in a direction away from the human body.

[0012] The detection component includes a first sensor and a second sensor disposed on the housing. The first sensor and the second sensor are spaced apart, and the distance between the first sensor and the second sensor is greater than or equal to the distance between the two ends of the notch.

[0013] The central angles corresponding to the first sensor and the second sensor are greater than or equal to the central angle corresponding to the notch.

[0014] The first sensor and the second sensor are respectively distance sensors.

[0015] The fluid ejection structure is a humidifier. The housing includes a base, a water tank disposed on the base and detachably connected to the base, and an operation panel detachably connected to the water tank. An atomizer is provided on the base, and the first sensor and the second sensor are both disposed at the top end of the operation panel.

[0016] The operation panel is snap-connected to the water tank.

[0017] The driving component includes:

[0018] A motor;

[0019] A friction wheel, fixedly arranged on the output shaft of the motor. The friction wheel is in frictional contact with the lower surface of the cover, and the axis of the friction wheel is perpendicular to the axis of the cover.

[0020] The motor adopts an open-loop stepper motor.

[0021] A rotating shaft is connected to the center of the lower surface of the cover, and the rotating shaft is rotatably supported in the housing.

[0022] A handle is provided at the opening of the ejection channel in the housing. An installation hole cooperating with the rotating shaft is provided on the handle, and the rotating shaft is rotatably arranged in the installation hole.

[0023] The technical solution of the present invention has the following advantages:

[0024] 1. A fluid ejection structure provided by the present invention drives a cover to rotate through a driving component, so that the cover ejects fluid in all directions through a 360° rotation. By providing a detection component, when a person approaches the fluid ejection structure and the distance between the human body and the fluid ejection structure is less than or equal to a preset distance, the detection component emits first position information, and the controller controls the operation of the driving component to make the notch of the cover rotate in a direction away from the human body, avoiding the fluid being directly sprayed at the user.

[0025] 2. A fluid ejection structure provided by the present invention, wherein the detection component includes a first sensor and a second sensor provided on a housing. The first sensor and the second sensor are arranged at intervals, and the distance between the first sensor and the second sensor is greater than or equal to the distance between the two ends of the notch. The structure of the detection component is simple, and such a setting forms a safe area between the first sensor and the second sensor. When the user is directly in front of the area between the first sensor and the second sensor, the user will not be sprayed by the fluid ejection structure.

[0026] 3. A fluid ejection structure provided by the present invention, wherein the central angles corresponding to the first sensor and the second sensor are greater than or equal to the central angle corresponding to the notch, further ensuring that when the user is directly in front of the area between the first sensor and the second sensor, the user will not be sprayed by the fluid ejection structure.

[0027] 4. A fluid ejection structure provided by the present invention, wherein the first sensor and the second sensor are respectively distance sensors, and the detection accuracy is relatively high. When the user is at a certain distance in front of the fluid ejection structure, it can be detected, effectively ensuring that the user will not be sprayed by the fluid ejection structure.

[0028] 5. A fluid ejection structure provided by the present invention, wherein the fluid ejection structure is a humidifier. The housing includes a base, a water tank provided on the base and detachably connected to the base, and an operation panel detachably connected to the water tank. An atomizer is provided on the base. The first sensor and the second sensor are both provided at the top of the operation panel. The water tank is detachably connected to the operation panel, and the sensors are provided on the operation panel. When the water tank needs to be filled with water, only the water tank needs to be detached. The water filling port of the water tank is usually at the bottom, which can avoid damaging the first sensor and the second sensor when the water tank is turned over for filling.

[0029] 6. A fluid ejection structure provided by the present invention, wherein the operation panel is snap-connected to the water tank, and the connection method is simple, which is convenient for detaching the water tank.

[0030] 7. A fluid ejection structure provided by the present invention, wherein the driving assembly includes: a motor; a friction wheel fixedly arranged on the output shaft of the motor, the friction wheel being in frictional contact with the lower surface of the cover body, and the axis of the friction wheel being perpendicular to the axis of the cover body. The cover body is driven to rotate by friction, and the structure is simple and the rotation is stable.

[0031] 8. A fluid ejection structure provided by the present invention, wherein the motor adopts an open-loop stepper motor, which is convenient for accurately controlling the rotation direction of the motor.

[0032] 9. A fluid ejection structure provided by the present invention, wherein a rotating shaft is connected to the center of the lower surface of the cover body, and the rotating shaft is rotatably supported in the housing, making the rotation process of the cover body more stable.

[0033] 10. A fluid ejection structure provided by the present invention, wherein a handle is provided at the opening of the ejection channel in the housing, and an installation hole for cooperating with the rotating shaft is provided on the handle, and the rotating shaft is rotatably arranged in the installation hole. The setting of the handle facilitates picking up the water tank, and at the same time, the rotating shaft is installed on the handle, and the structure is relatively compact. Description of the Drawings

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 It is a schematic structural diagram of the humidifier provided in the embodiment of the present invention;

[0036] Figure 2 For Figure 1 It is a schematic structural diagram of the separated state of the cover body and the housing of the humidifier shown;

[0037] Figure 3 For Figure 1 It is a half-sectional view of the cover body shown;

[0038] Figure 4 For Figure 1 It is a half-sectional view of;

[0039] Description of the Reference Numerals:

[0040] 1 - Base; 2 - Water tank; 3 - Operation panel; 4 - Display window; 5 - Cover body; 51 - Notch; 52 - Rotating shaft; 6 - First sensor; 7 - Second sensor; 8 - Friction wheel; 9 - Handle; 91 - Installation hole; 10 - Motor; 11 - Ejection channel. Detailed Embodiments

[0041] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0044] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Embodiment 1

[0046] This embodiment provides a specific implementation manner of a fluid ejection structure, as Figures 1 to 4 shown, including a housing, a cover body 5, a driving assembly, a detection assembly, and a controller. The fluid ejection structure in this implementation manner is specifically a humidifier. Of course, in other alternative implementation manners, the fluid ejection structure can be a structure that continuously rotates at the outlet and ejects gas or liquid outward. For example, in some pressure cookers, the air outlet rotates continuously during operation.

[0047] The housing is provided with a spraying channel 11 and an opening communicating with the spraying channel 11. In this embodiment, the housing includes a base 1, a water tank 2 disposed on the base 1 and detachably connected to the base 1, and an operation panel 3 detachably connected to the water tank 2. A display window 4 is provided on the operation panel 3. A nebulizer is provided on the base 1. Water in the water tank 2 continuously flows onto the base 1, and the nebulizer atomizes the water and sprays it through the spraying channel 11. Specifically, the spraying channel 11 is provided at the central position of the housing and extends upward from bottom to top.

[0048] Specifically, the operation panel 3 is snap-connected to the water tank 2.

[0049] The cover 5 is rotatably disposed on the opening and is provided with a notch 51 communicating with the opening. The water mist finally sprays out through the notch 51 after passing through the spraying channel 11.

[0050] A driving assembly for driving the cover 5 to rotate. Specifically, the driving assembly includes a motor 10 and a friction wheel 8. The motor 10 is fixedly provided on the outer wall of the water tank 2 inside the housing, the friction wheel 8 is fixedly provided on the output shaft of the motor 10, the friction wheel 8 is in frictional contact with the lower surface of the cover 5, and the axis of the friction wheel 8 is perpendicular to the axis of the cover 5. During the continuous rotation of the friction wheel 8 along with the output shaft of the motor 10, a rolling friction force is generated with the lower surface of the cover 5 to drive the cover 5 to continuously rotate. The structure is simple and the rotation process is stable, and the motor 10 will not be affected by the sprayed fluid. In an alternative embodiment, the motor 10 is provided at the central position inside the housing, and the center of the cover 5 is directly connected to the output shaft of the motor 10. In another alternative embodiment, the friction wheel 8 can be replaced by a gear, and teeth matching the gear are also provided on the lower surface of the cover 5, and the cover 5 is meshed and connected with the gear.

[0051] Preferably, the motor 10 is an open-loop stepper motor 10, which is convenient for precisely controlling the rotation direction of the motor 10.

[0052] To ensure the smoothness of the rotation process of the cover 5 and prevent the cover 5 from deviating from the opening of the spraying channel 11, a rotating shaft 52 is connected to the center of the lower surface of the cover 5, and the rotating shaft 52 is rotatably supported inside the housing.

[0053] Specifically, a handle 9 is provided at the opening of the spraying channel 11 inside the housing. The handle 9 is provided with a mounting hole 91 for cooperating with the rotating shaft 52, and the rotating shaft 52 is rotatably disposed in the mounting hole 91. The handle 9 only covers a part of the outlet of the spraying channel 11 and does not affect the spraying of the fluid. In other alternative embodiments, the handle 9 may not be provided, and a cover plate is provided at the opening of the spraying channel 11 inside the housing. The cover plate does not completely cover the opening, and a mounting hole 91 is provided on the cover plate, and the rotating shaft 52 is located in the mounting hole 91.

[0054] The detection component is used to detect the orientation of the notch 51 and the distance between the human body and the fluid ejection structure, and send the first position information when the distance between the human body and the fluid ejection structure is less than or equal to a preset distance. In this embodiment, the detection component includes a first sensor 6 and a second sensor 7 disposed on the housing, specifically at the top of the operation panel 3. The first sensor 6 and the second sensor 7 are spaced apart, and the distance between the first sensor 6 and the second sensor 7 is greater than or equal to the distance between the two ends of the notch 51. Such a setting forms a safety area between the first sensor 6 and the second sensor 7. When the user is directly in front of the area between the first sensor 6 and the second sensor 7, the user will not be sprayed by the fluid ejection structure.

[0055] Furthermore, the central angles corresponding to the first sensor 6 and the second sensor 7 are greater than or equal to the central angle corresponding to the notch 51. This further ensures that when the user is directly in front of the area between the first sensor 6 and the second sensor 7, the user will not be sprayed by the fluid ejection structure.

[0056] The controller is respectively connected to the drive component and the detection component, and is used to control the operation of the drive component when receiving the first position information, so that the notch 51 of the cover body 5 rotates in a direction away from the human body. The controller specifically controls the operation of the motor 10 to make the motor 10 rotate forward or backward.

[0057] In this embodiment, the first sensor 6 and the second sensor 7 are respectively distance sensors. In other alternative embodiments, the types of the first sensor 6 and the second sensor 7 can be other sensors capable of detecting the human body position.

[0058] During the use of this humidifier, the drive component continuously drives the cover body 5 to rotate, so that the notch 51 rotates continuously within 360°, and can spray mist at various positions in the room. When someone approaches this humidifier and the distance between the person and the humidifier is less than or equal to the preset distance, the detection component sends the first position information. During the rotation of the cover body 5, it will sequentially spray the first sensor 6 and the second sensor 7. When the first sensor 6 or the second sensor 7 is sprayed, it will send a signal to the controller. The controller will record the time when the first sensor 6 and the second sensor 7 are sprayed, and calculate and judge the orientation of the notch 51 at this time. When the notch 51 faces the user, the controller controls the operation of the drive component to make the notch 51 of the cover body 5 rotate in a direction away from the human body, avoiding the fluid from directly spraying at the user. When the user is always near this humidifier, the controller will control the operation of the drive component to make the cover body 5 of the humidifier rotate repeatedly until the distance between the user and the humidifier is greater than the preset distance.

[0059] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A fluid ejection structure, characterized in that, it includes: a housing provided with an ejection channel (11) and an opening communicating with the ejection channel (11); a cover body (5) rotatably covering the opening and provided with a notch (51) communicating with the opening; a driving assembly for driving the cover body (5) to rotate; a detection assembly for detecting the orientation of the notch (51) and the distance between the human body and the fluid ejection structure, and sending a first position information when the distance between the human body and the fluid ejection structure is less than or equal to a preset distance; a controller respectively connected to the driving assembly and the detection assembly, and configured to control the operation of the driving assembly when receiving the first position information, so that the notch (51) of the cover body (5) rotates in a direction away from the human body. The detection assembly includes a first sensor (6) and a second sensor (7) provided on the housing. The first sensor (6) and the second sensor (7) are spaced apart. The distance between the first sensor (6) and the second sensor (7) is greater than or equal to the distance between the two ends of the notch (51). When the first sensor (6) or the second sensor (7) is sprayed, it sends a signal to the controller, and the controller calculates the orientation of the notch according to the time when the first sensor (6) and the second sensor (7) are sprayed.

2. The fluid ejection structure according to claim 1, characterized in that, the central angles corresponding to the first sensor (6) and the second sensor (7) are greater than or equal to the central angle corresponding to the notch (51).

3. The fluid ejection structure according to claim 1, characterized in that, the first sensor (6) and the second sensor (7) are respectively distance sensors.

4. The fluid ejection structure according to claim 1, characterized in that, the fluid ejection structure is a humidifier. The housing includes a base (1), a water tank (2) disposed on the base (1) and detachably connected to the base (1), and an operation panel (3) detachably connected to the water tank (2). An atomizer is provided on the base (1), and the first sensor (6) and the second sensor (7) are both disposed at the top end of the operation panel (3).

5. The fluid ejection structure according to claim 4, characterized in that, the operation panel (3) is snap-connected to the water tank (2).

6. The fluid ejection structure according to any one of claims 1 - 5, characterized in that, the driving assembly includes: a motor (10); a friction wheel (8) fixedly provided on the output shaft of the motor (10). The friction wheel (8) is in frictional contact with the lower surface of the cover body (5), and the axis of the friction wheel (8) is perpendicular to the axis of the cover body (5).

7. The fluid ejection structure according to claim 6, characterized in that, the motor (10) is an open-loop stepper motor (10).

8. The fluid ejection structure according to claim 6, characterized in that, A rotating shaft (52) is connected to the center of the lower surface of the cover body (5), and the rotating shaft (52) is rotatably supported within the housing.

9. The fluid ejection structure according to claim 8, characterized in that, a handle (9) is provided at the opening of the ejection channel (11) within the housing, an installation hole (91) that cooperates with the rotating shaft (52) is provided on the handle (9), and the rotating shaft (52) is rotatably disposed within the installation hole (91).

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