Fragrance machine with liquid level detection function
By using a design that combines conductive sheets with elastic clinging parts in the liquid level detection module of the fragrance machine, the problem of low liquid level detection accuracy of the fragrance machine is solved, and higher liquid level detection accuracy and stability are achieved.
Patent Information
- Application Number
- CN202421837345.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The liquid level detection function of the existing fragrance machine affects the accuracy of liquid level detection due to the gap between the induction copper sheet and the essential oil bottle and the position deviation of the essential oil bottle caused by body vibration.
A fragrance machine with liquid level detection function is designed, using a liquid level detection module that combines conductive sheets and elastic clinging parts. The elastic clinging parts are closely fitted with the side walls of essential oil bottles to ensure detection accuracy.
Through the elastic rebound of the elastic clinging member and the elasticity of the compression spring, it maintains a close fit with the side wall of the essential oil bottle, improving the accuracy of liquid level detection and reducing the detection accuracy caused by body vibration or position deviation of the essential oil bottle.
Smart Images
Figure CN222917859U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid level detection of aroma diffusers, and particularly relates to an aroma diffuser with a liquid level detection function. Background Art
[0002] An aroma diffuser is a diffusion device that converts the liquid essential oil stored in an essential oil bottle into fine particles through specific technical means and then diffuses these fine particles into the air to create an aroma environment. Currently, aroma diffusers generally have a liquid level detection function, mainly used to detect the liquid level height in the essential oil bottle, so as to be able to timely remind to change the liquid or add liquid. However, the liquid level detection function in the current aroma diffuser generally directly attaches the induction copper sheet on the capacitive liquid sensor to the essential oil bottle. Since there may be a gap between the induction copper sheet and the essential oil bottle during the assembly process of the essential oil bottle and the aroma diffuser, it will affect the induction accuracy of the liquid sensor. And with the vibration generated by the air pump or fan during the use of the aroma diffuser, the installation position of the essential oil bottle may shift, which will further affect the accuracy of the liquid sensor in detecting the liquid level height in the essential oil bottle.
[0003] The technical problem to be solved by this application is: to design an aroma diffuser with a liquid level detection function that can improve the accuracy of detecting the liquid level in the essential oil bottle. Summary of the Utility Model
[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an aroma diffuser with a liquid level detection function that can improve the accuracy of detecting the liquid level in the essential oil bottle.
[0005] The technical solution adopted by the utility model is: an aroma diffuser with a liquid level detection function, including a housing, an essential oil bottle is arranged inside the housing, a liquid level detection module is arranged inside the housing, the liquid level detection module includes a conductive sheet and an elastic tight-fitting member connected to the conductive sheet, and the elastic tight-fitting member is in contact with the side wall of the essential oil bottle.
[0006] In some embodiments, the liquid level detection module includes a liquid level sensor circuit board, and a plurality of capacitive induction units are arranged on the liquid level sensor circuit board.
[0007] In some embodiments, each capacitive induction unit is provided with a compression spring electrically connected thereto, and the other end of the compression spring is connected to the conductive sheet.
[0008] In some embodiments, the elastic tight-fitting member has a fitting surface corresponding to the essential oil bottle, the fitting surface is an arc surface, and the fitting surface is in contact with the side wall of the essential oil bottle.
[0009] In some embodiments, a connection groove is arranged on the back of the elastic tight-fitting member, the fitting surface is recessed into the connection groove, and the conductive sheet is arranged in the connection groove and connected to the back of the fitting surface.
[0010] In some embodiments, the compression spring is a horn-shaped compression spring.
[0011] In some embodiments, the housing includes a rear shell, a front shell, and a middle shell located between the rear shell and the front shell. The liquid level sensor circuit board is connected to the rear shell. The middle shell is provided with a limiting groove that cooperates with the essential oil bottle in a limiting manner, and a plurality of annular clamping strips for clamping the essential oil bottle are provided in the limiting groove.
[0012] In some embodiments, a plurality of guiding grooves are provided on the back side of the limiting groove, and the elastic tight-fitting member passes through the guiding grooves and fits tightly with the side wall of the essential oil bottle.
[0013] In some embodiments, an atomizing nozzle device is provided on the essential oil bottle. The atomizing nozzle device includes a spray head. The housing is provided with a clamping hole, and the spray head extends outwards through the clamping hole.
[0014] In some embodiments, a lighting module and a receiving terminal are further included. The liquid level detection module is used to detect the liquid level height information in the essential oil bottle. The liquid level detection module respectively feeds back the detected liquid level height information to the lighting module and the receiving terminal. The lighting module is used to receive the liquid level height information sent by the liquid level detection module and display different lights.
[0015] The utility model has the following technical effects: By providing an elastic tight-fitting member connected on the conductive sheet, the elastic tight-fitting member is in close contact with the side wall of the essential oil bottle. Because the elastic tight-fitting member abuts against the side wall of the essential oil bottle due to its own elasticity, even when the essential oil is replaced or the position of the essential oil bottle shifts during operation, the elastic tight-fitting member will still be in close contact with the side wall of the essential oil bottle due to the resilience of its own elasticity, thereby improving the accuracy of the liquid level detection module for detecting the liquid level height in the essential oil bottle. Description of the Drawings
[0016] Figure 1 is a schematic structural diagram of an aroma diffuser with a liquid level detection function according to the utility model;
[0017] Figure 2 is an exploded schematic structural diagram of an aroma diffuser with a liquid level detection function according to the utility model;
[0018] Figure 3 is a schematic structural diagram of the liquid level detection module of an aroma diffuser with a liquid level detection function according to the utility model;
[0019] Figure 4 is a schematic structural diagram of the essential oil bottle of an aroma diffuser with a liquid level detection function according to the utility model;
[0020] Figure 5 is a schematic diagram of liquid level feedback of an aroma diffuser with a liquid level detection function according to the utility model.
[0021] The reference numerals in the figure correspond to the names as follows: 1. housing; 10. essential oil bottle; 2. liquid level detection module; 20. conductive sheet; 21. elastic tightener; 22. liquid level sensor circuit board; 23. compression spring; 24. connection groove; 25. fitting surface; 11. rear shell; 12. front shell; 13. middle shell; 130. limit groove; 131. annular clamping strip; 132. guiding groove; 101. atomizing nozzle device; 102. spray head; 103. clamping hole. Detailed implementation manners
[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0023] Please refer to Figures 1-5, the present utility model provides a technical solution: an aromatherapy machine with a liquid level detection function, which includes a housing 1. An essential oil bottle 10 is provided inside the housing 1, and a liquid level detection module 2 for detecting the height of the essential oil liquid level in the essential oil bottle 10 is provided inside the housing 1. The housing 1 includes a rear shell 11, a front shell 12, and a middle shell 13 located between the rear shell 11 and the front shell 12. The liquid level detection module 2 includes a liquid level sensor circuit board 22 installed on the rear shell 11. A number of capacitive sensing units are provided on the liquid level sensor circuit board 22. The capacitive sensing unit mainly measures the height of the essential oil liquid level in the essential oil bottle 10 by measuring the capacitance change between the liquid and the electrode. Each capacitive sensing unit is provided with a compression spring 23 electrically connected thereto. The compression spring 23 is a horn-shaped compression spring. A conductive sheet 20 is provided at the other end of the compression spring 23. One side of the conductive sheet 20 is provided with an elastic tight-fitting member 21 connected thereto. The conductive sheet 20 is a copper sheet, and one side of the copper sheet is an adhesive surface. Therefore, the conductive sheet 20 is connected to the elastic tight-fitting member 21 through the adhesive surface. A connecting groove 24 is provided on the back of the elastic tight-fitting member 21. The fitting surface 25 is recessed into the connecting groove 24, and the conductive sheet 20 is disposed in the connecting groove 24 and connected to the back of the fitting surface 25. The elastic tight-fitting member 21 is in contact with the side wall of the essential oil bottle 10, and a fitting surface 25 is provided on the side of the elastic tight-fitting member 21 corresponding to the essential oil bottle 10. The fitting surface 25 is an arc surface, and the radian of the fitting surface 25 is enlarged in proportion to the radian of the side wall of the essential oil bottle 10. Therefore, it can just fit the side walls of the essential oil bottle 10. Therefore, since the capacitive sensing unit is provided with a compression spring 23 electrically connected thereto, and the other end of the compression spring 23 is connected to the conductive sheet 20, and because the conductive sheet 20 is connected to the back side of the elastic tight-fitting member 21, when the essential oil bottle 10 is installed in the housing 1, the other side of the elastic tight-fitting member 21 is also in close contact with the side of the essential oil bottle 10. And at this time, due to the elasticity of the elastic tight-fitting member 21 itself and the elasticity of the compression spring 23, the elastic tight-fitting member 21 will have a partial reaction force on the side wall of the essential oil bottle 10, so that the elastic tight-fitting member 21 is always in contact with the essential oil bottle 10. And even when changing the liquid or adding liquid to the essential oil bottle 10 or replacing the essential oil bottle 10 to cause the installation position of the essential oil bottle 10 to shift, at this time, due to the elasticity between the elastic tight-fitting member 21 and the compression spring 23, the elastic tight-fitting member 21 will still be in close contact with the side wall of the essential oil bottle 10, so as to facilitate the capacitive sensing unit to measure the height of the essential oil liquid level in the essential oil bottle 10 by sensing the capacitance change between the liquid and the electrode through the conductive sheet 20. And even when the installation position of the essential oil bottle 10 shifts due to the vibration of the machine body during the operation of the aromatherapy machine, at this time, the elastic tight-fitting member 21 will still be in close contact with the side wall of the essential oil bottle 10 due to its own elasticity and the elasticity of the compression spring 23. Therefore, it will not affect the capacitive sensing unit to sense the capacitance change between the liquid and the electrode through the conductive sheet 20, and thus will not affect the accuracy of measuring the height of the essential oil liquid level in the essential oil bottle 10.
[0024] A limiting groove 130 for limiting cooperation with the essential oil bottle 10 is provided on the middle shell 13 of the housing 1. A number of annular clamping strips 131 for clamping the essential oil bottle 10 are further provided in the limiting groove 130. Therefore, after the essential oil bottle 10 is installed in the middle of the limiting groove 130, the annular clamping strips 131 can clamp the essential oil bottle 10 to ensure the installation stability of the essential oil bottle 10. A number of guiding grooves 132 are further provided on the back side of the limiting groove 130. The elastic pressing member 21 passes through the guiding grooves 132 and fits against the side wall of the essential oil bottle 10. And during the operation of the aromatherapy machine, since the body of the machine will vibrate slightly, the essential oil bottle 10 will also vibrate accordingly. At this time, because the elastic pressing member 21 is pressed against the essential oil bottle 10 by the elastic reaction force, when the essential oil bottle 10 vibrates, the elastic pressing member 21 will also swing in the guiding grooves 132 along with the vibration of the essential oil bottle 10, so as to ensure that the elastic pressing member 21 can always press against the side of the essential oil bottle 10.
[0025] An atomizing nozzle device 101 is further provided on the essential oil bottle 10. The atomizing nozzle device 101 includes a spray head 102. A clamping hole 103 is provided on the housing 1. The spray head 102 can extend outwards through the clamping hole 103 so that the essential oil particles in the essential oil bottle 10 can diffuse outwards.
[0026] It further includes a lighting module and a receiving terminal. When the liquid level detection module 2 detects the liquid level height information in the essential oil bottle, the liquid level detection module 2 feeds back the detected liquid level height information to the lighting module. The lighting module includes a liquid level indicator light. After the lighting module receives the liquid level height information, the liquid level indicator light displays lights of different colors according to different liquid level height information for the user to know. The way that the liquid level detection module 2 transmits and feeds back the detected liquid level height information to the lighting module can be wired signal transmission or wireless signal transmission. The receiving terminal is digital products such as mobile phones and iPads. The liquid level detection module 2 can also transmit the detected liquid level height information to the App software of the mobile phone or iPad through wifi or Bluetooth, so as to facilitate the user to timely check the liquid level height of the essential oil in the essential oil bottle of this aromatherapy machine.
[0027] The working principle of the present utility model: By providing an elastic pressing member 21 connected on the conductive sheet 20, the elastic pressing member 21 is closely attached to the side wall of the essential oil bottle 10. Because the elastic pressing member 21 is pressed against the side wall of the essential oil bottle 10 due to its own elasticity, even if the essential oil is replaced or the position of the essential oil bottle 10 is offset during operation, the elastic pressing member 21 will still be closely attached to the side wall of the essential oil bottle 10 due to the elastic rebound of its own elasticity, thereby improving the accuracy of the liquid level detection module 2 for detecting the liquid level height in the essential oil bottle 10.
[0028] Finally, it should be noted that the above are only preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A fragrance machine with a liquid level detection function, comprising a housing, wherein an essential oil bottle is arranged in the housing, characterized in that: A liquid level detection module is arranged in the shell, and the liquid level detection module comprises a conductive sheet and an elastic close-fitting member connected to the conductive sheet, and the elastic close-fitting member is in contact with the side wall of the essential oil bottle.
2. The aroma diffuser with liquid level detection function according to claim 1, characterized in that: The liquid level detection module comprises a liquid level sensor circuit board, and a plurality of capacitive sensing units are arranged on the liquid level sensor circuit board.
3. The aroma diffuser with liquid level detection function according to claim 2, characterized in that: Each of the capacitive sensing units is provided with a compression spring electrically connected thereto, and the other end of the compression spring is connected to the conductive sheet.
4. The aroma diffuser with liquid level detection function according to claim 1, characterized in that: The elastic clinging piece is provided with a fitting surface on one side corresponding to the essential oil bottle, the fitting surface is an arc surface, and the fitting surface fits with the side wall of the essential oil bottle.
5. The aroma diffuser with liquid level detection function according to claim 4, characterized in that: A connecting groove is provided on the back side of the elastic clinging member, the fitting surface is recessed into the connecting groove, and the conductive sheet is arranged in the connecting groove and connected to the back side of the fitting surface.
6. The aroma diffuser with liquid level detection function according to claim 3, characterized in that: The compression spring is a trumpet-type compression spring.
7. The aroma diffuser with liquid level detection function according to claim 2, characterized in that: The shell includes a rear shell, a front shell and a middle shell located between the rear shell and the front shell. The liquid level sensor circuit board is connected to the rear shell. The middle shell is provided with a limiting groove that cooperates with the essential oil bottle. The limiting groove is provided with a plurality of annular clips for locking the essential oil bottle.
8. The aroma diffuser with liquid level detection function according to claim 7, characterized in that: A plurality of guide grooves are arranged on the back side of the limiting groove, and the elastic close-fitting member passes through the guide grooves and fits with the side wall of the essential oil bottle.
9. The aroma diffuser with liquid level detection function according to claim 1, characterized in that: The essential oil bottle is provided with an atomizing nozzle device, which includes a spray head. The shell is provided with a clamping hole, and the spray head extends outward through the clamping hole.
10. The aroma diffuser with liquid level detection function according to claim 1, characterized in that: It also includes a lighting module and a receiving terminal. The liquid level detection module is used to detect the liquid level height information in the essential oil bottle. The liquid level detection module feeds back the detected liquid level height information to the lighting module and the receiving terminal respectively. The lighting module is used to receive the liquid level height information sent by the liquid level detection module and display different lights.