Dry-burn prevention atomizer and electric appliance

Abstract

The utility model discloses a kind of dry-burn prevention atomizer and electrical equipment, including base and atomizing sheet, the base is provided with first convex ring and second convex ring, the second convex ring is sleeved in the first convex ring, the atomizing sheet is set in the base, the atomizing sheet and the inner side wall of the first convex ring define the atomizing groove with notch upwards, the atomizing sheet is located at the bottom of the atomizing groove, wherein, the second convex ring and the first convex ring between define backflow groove, the height of the top of the first convex ring is lower than the height of the top of the second convex ring, the design guarantees the use durability of atomizing sheet, and stable and reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of atomization equipment technology, and in particular to an anti-dry-burning atomizer and electrical equipment. Background Technology

[0002] Existing atomizers typically apply an electric current to an ultrasonic atomizing plate, causing it to vibrate at high frequency and disperse the liquid into a mist. However, even when the liquid in the chamber is depleted, the atomizing plate continues to operate, and the current continues to flow through it, eventually increasing. This can lead to the atomizing plate burning out. Therefore, existing atomizers can detect the liquid level by monitoring the operating current of the atomizing plate. When the liquid level is too low, the operating current of the atomizing plate will increase. However, by the time the increased operating current is detected, the liquid on the atomizing plate has already been consumed, and the atomizing plate has begun to burn out. Even if the atomizing plate is turned off in time, heat still accumulates on it, which will shorten its lifespan with repeated use. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an anti-dry-burning atomizer and electrical equipment to ensure the durability of the atomizing plate and stable and reliable operation.

[0004] A dry-burning atomizer according to a first aspect of the present invention includes: a base, wherein the base is provided with a first convex ring and a second convex ring, the second convex ring being sleeved on the first convex ring; an atomizing plate, wherein the atomizing plate is disposed on the base, the inner sidewall of the atomizing plate and the first convex ring defining an atomizing groove with the slot facing upward, the atomizing plate being located at the bottom of the atomizing groove; wherein a reflux groove is defined between the second convex ring and the first convex ring, and the height of the top of the first convex ring is lower than the height of the top of the second convex ring.

[0005] A dry-burning atomizer according to an embodiment of the present utility model has at least the following beneficial effects:

[0006] This utility model relates to an anti-dry-burning atomizer, which can be installed at the bottom of a liquid storage chamber. During normal operation, the liquid flows into the atomizing tank, where the atomizing plate vibrates, atomizing the liquid. As the liquid in the chamber is consumed, the liquid level in the atomizing tank gradually decreases. Due to the separation by the first convex ring, the return tank and the atomizing tank are isolated. Some liquid remains in the return tank. During the vibration of the atomizing plate, the liquid in the atomizing tank surges, causing some liquid to flow into the return tank, resulting in the liquid level in the return tank being higher than the height of the top of the first convex ring. The liquid overflowing from the return groove below the height of the second convex ring will flow back into the atomizing groove. When the liquid in the atomizing groove is nearly completely consumed, the operating current of the atomizing plate will increase. When the current increases, the output current to the atomizing plate can be stopped. At this time, the atomizing plate will accumulate heat. However, because the liquid in the atomizing groove has already surged into the return groove during the vibration of the atomizing plate, and the atomizing plate stops vibrating, the liquid overflowing from the return groove flows back into the atomizing groove, covering the surface of the atomizing plate and cooling it down in time, reducing the risk of high temperature damage to the atomizing plate. This design ensures the durability of the atomizing plate and stable and reliable operation.

[0007] According to some embodiments of the present invention, the top of the first convex ring is arc-shaped.

[0008] According to some embodiments of the present invention, the peripheral wall of the atomizing groove slopes outward from the bottom to the top of the atomizing groove.

[0009] According to some embodiments of the present invention, the outer peripheral wall of the reflux trough is inclined outward from the bottom to the top of the reflux trough.

[0010] According to some embodiments of the present invention, the anti-dry-burning atomizer further includes a control module and a drive module. The drive module is connected to the atomizing plate to form at least a partial drive branch. The drive branch is used to connect to a power supply. The control module is connected to the controlled end of the drive module.

[0011] According to some embodiments of the present invention, the anti-dry-burning atomizer further includes a current detection module, which is connected to the drive branch to detect the operating current, and is also connected to the control module.

[0012] According to some embodiments of the present invention, the base has a through hole extending vertically, and the inner peripheral wall of the through hole is provided with an annular groove. The edge of the atomizing plate is inserted into the groove so that the atomizing plate is connected to the base.

[0013] According to some embodiments of the present invention, the bottom of the base is provided with a receiving cavity communicating with the lower end of the through hole, and the control module and the drive module are disposed in the receiving cavity.

[0014] According to some embodiments of the present invention, the gap between the edge of the atomizing plate and the inner wall of the slot is filled with sealant.

[0015] The electrical device according to the second aspect of the present invention includes the anti-dry-burning atomizer disclosed in any of the above embodiments.

[0016] The electrical equipment according to the embodiments of this utility model has at least the following beneficial effects:

[0017] This utility model electrical device uses the anti-dry-burning atomizer disclosed in any of the above embodiments to ensure the durability of the atomizing plate and stable and reliable operation.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a perspective view of one embodiment of the anti-dry-burning atomizer of this utility model;

[0021] Figure 2 for Figure 1 A cross-sectional view along section A-A of one embodiment of the anti-dry-burning atomizer of this utility model;

[0022] Figure 3 This is a schematic diagram of the principle structure of one embodiment of the anti-dry-burning atomizer of this utility model.

[0023] Figure label:

[0024] Base 100; Slot 110; Receiving cavity 120; Atomizing groove 130; First convex ring 140; Second convex ring 150; Return groove 160; Atomizing plate 200; Control module 300; Drive module 400; Current detection module 500; Circuit board 600; Water splash detection module 700. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] like Figures 1 to 3 As shown, a dry-burning atomizer according to a first aspect embodiment of the present invention includes a base 100 and an atomizing plate 200. The base 100 is provided with a first convex ring 140 and a second convex ring 150, the second convex ring 150 being sleeved on the first convex ring 140. The atomizing plate 200 is disposed on the base 100. The inner sidewalls of the atomizing plate 200 and the first convex ring 140 define an atomizing groove 130 with the slot facing upward. The atomizing plate 200 is located at the bottom of the atomizing groove 130. A reflux groove 160 is defined between the second convex ring 150 and the first convex ring 140. The height of the top of the first convex ring 140 is lower than the height of the top of the second convex ring 150.

[0030] The first convex ring 140 and the second convex ring 150 can both be circular, elliptical, polygonal, etc., and the atomizing plate 200 can be a conventional piezoelectric ultrasonic atomizing plate 200. In some embodiments of this utility model, such as... Figure 3As shown, the anti-dry-burning atomizer also includes a control module 300 and a drive module 400. The drive module 400 is connected to the atomizing plate 200 to form at least a partial drive branch. The drive branch is used to connect to the power supply. The control module 300 is connected to the controlled end of the drive module 400.

[0031] The control module 300 may include an MCU or CPU and its associated circuitry. The drive module 400 may include multiple semiconductor switching transistors. The switching transistors and the atomizing sheet 200 are connected to form at least a portion of the drive branch. The control module 300 is connected to the controlled terminal of the switching transistors. The control module 300 outputs a PWM signal to control the switching transistors to turn on and off, thereby controlling the start and stop of the atomizing sheet 200.

[0032] In some embodiments of this utility model, the anti-dry-burning atomizer further includes a current detection module 500, which is connected to the drive branch to detect the operating current and is connected to the control module 300.

[0033] The current detection module 500 may include a voltage divider circuit consisting of a detection resistor and a voltage divider resistor. The detection resistor is connected in series with the drive branch. The first end of the voltage divider resistor is connected to the first end of the detection resistor and the atomizing plate 200 respectively. The last end of the voltage divider resistor is connected to the control module 300. The control module 300 can acquire the voltage divider signal and analyze the magnitude of the working current.

[0034] In some embodiments of this utility model, the anti-dry-burning atomizer may further include a water splash detection module 700, which is connected to the drive branch to detect the level signal of the current pulse, and is connected to the control module 300.

[0035] Specifically, the water splash detection module 700 detects the pulse level signal. When the liquid level is high and the water splash is large, there is no current pulse, which results in a low level. When the liquid level is low and the water splash is small, the current pulse detection results in a high level signal. In this way, the liquid level can also be analyzed.

[0036] This utility model relates to an anti-dry-burning atomizer, which can be installed at the bottom of a liquid storage chamber. During normal operation, the liquid flows into the atomizing tank 130. The atomizing plate 200 vibrates, atomizing the liquid in the atomizing tank 130. As the liquid in the chamber is consumed, the liquid in the atomizing tank 130 gradually decreases. Due to the separation by the first convex ring 140, the return tank 160 and the atomizing tank 130 are isolated from each other. Some liquid remains in the return tank 160. During the vibration of the atomizing plate 200, the liquid in the atomizing tank 130 surges, and some liquid flows into the return tank 160, causing the liquid level in the return tank 160 to be higher than the height of the top of the first convex ring 140. Furthermore, the height of the top of the first convex ring 140 is lower than the height of the second convex ring 140. The height of the top of the convex ring 150 allows liquid overflowing from the return groove 160 to flow back into the atomizing groove 130. When the liquid in the atomizing groove 130 is nearly completely consumed, the operating current of the atomizing plate 200 will increase. When this increase occurs, the output current to the atomizing plate 200 can be stopped. At this time, the atomizing plate 200 will accumulate heat. However, because liquid has already surged into the return groove 160 during the vibration of the atomizing plate 200, and the atomizing plate 200 stops vibrating, the liquid overflowing from the return groove 160 flows back into the atomizing groove 130, covering the surface of the atomizing plate 200 and cooling it down in time, reducing the risk of high-temperature damage to the atomizing plate 200. This design ensures the durability of the atomizing plate 200 and stable and reliable operation.

[0037] In some embodiments of this utility model, such as Figure 2 As shown, the top of the first convex ring 140 is arc-shaped. The arc-shaped top can ensure that when the liquid level in the return tank 160 is slightly higher than the top of the first convex ring 140, the liquid can flow back into the atomizing tank 130.

[0038] In some embodiments of this utility model, such as Figure 2 As shown, the peripheral wall of the atomizing tank 130 is inclined outward from the bottom to the top of the atomizing tank 130, so that when the atomizing plate 200 vibrates, the liquid can flow smoothly along the inclined wall to the return tank 160, without the liquid impacting the wall and splashing water droplets that fall outside the return tank 160.

[0039] In some embodiments of this utility model, the outer peripheral wall of the return channel 160 is inclined outward from the bottom to the top of the return channel 160. Similarly, when the liquid in the atomizing tank 130 flows into the return channel 160, the liquid surge can spread along the inclined wall of the second convex ring 150 without causing the liquid to splash water droplets on the wall and fall outside the return channel 160.

[0040] In some embodiments of this utility model, such as Figure 1 , 2As shown, the base 100 has a through hole extending vertically, and the inner peripheral wall of the through hole is provided with an annular groove 110. The edge of the atomizing plate 200 is inserted into the groove 110 so that the atomizing plate 200 is connected to the base 100.

[0041] The atomizing plate 200 seals the opening, and the base 100 is installed at the bottom of the liquid storage chamber of the electrical equipment. The upper part of the atomizing plate 200 can directly communicate with the chamber. In some embodiments of this utility model, the bottom of the base 100 is provided with a receiving cavity 120 communicating with the lower end of the through hole, and the control module 300 and the drive module 400 are disposed in the receiving cavity 120.

[0042] Specifically, a circuit board 600 can be provided in the accommodating cavity 120. The electronic components constituting the control module 300 and the drive module 400 can be arranged on the circuit board 600. The atomizing sheet 200 can be connected to the conductive layer of the circuit board 600 through pins or wires to connect with the drive module 400.

[0043] In some embodiments of this utility model, the gap between the edge of the atomizing plate 200 and the inner wall of the slot 110 is filled with sealant. The sealant tightly fills the gap to ensure that the liquid does not leak into the receiving cavity 120.

[0044] The electrical device according to the second aspect of the present invention includes the anti-dry-burning atomizer disclosed in any of the above embodiments.

[0045] Among them, electrical equipment can be household humidifiers, nutrient solution sprayers used for plant cultivation, etc., and anti-dry-burning atomizers can be installed at the bottom of the liquid storage chamber.

[0046] This utility model electrical device uses the anti-dry-burning atomizer disclosed in any of the above embodiments to ensure the durability of the atomizing plate 200 and its stable and reliable operation.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dry-burning atomizer, characterized in that, include: The base has a first protruding ring and a second protruding ring, with the second protruding ring sleeved on the first protruding ring; An atomizing plate is disposed on the base, and the inner sidewall of the atomizing plate and the first convex ring defines an atomizing groove with the slot facing upward, and the atomizing plate is located at the bottom of the atomizing groove; A reflux groove is defined between the second convex ring and the first convex ring, and the height of the top of the first convex ring is lower than the height of the top of the second convex ring.

2. The anti-dry-burning atomizer according to claim 1, characterized in that: The top of the first convex ring is arc-shaped.

3. The anti-dry-burning atomizer according to claim 1, characterized in that: The peripheral wall of the atomizing groove slopes outward from the bottom to the top of the atomizing groove.

4. The anti-dry-burning atomizer according to claim 1, characterized in that: The outer peripheral wall of the reflux trough slopes outward from the bottom to the top of the reflux trough.

5. The anti-dry-burning atomizer according to claim 1, characterized in that, It also includes a control module and a drive module, the drive module being connected to the atomizing plate to form at least a partial drive branch, the drive branch being used to connect to a power supply, and the control module being connected to the controlled end of the drive module.

6. The anti-dry-burning atomizer according to claim 5, characterized in that, It also includes a current detection module, which is connected to the drive branch to detect the operating current, and the current detection module is connected to the control module.

7. The anti-dry-burning atomizer according to claim 5, characterized in that, The base has a through hole running vertically through it, and the inner circumferential wall of the through hole is provided with an annular groove. The edge of the atomizing plate is inserted into the groove so that the atomizing plate is connected to the base.

8. The anti-dry-burning atomizer according to claim 7, characterized in that, The base has a receiving cavity at its bottom that communicates with the lower end of the through hole, and the control module and the drive module are disposed in the receiving cavity.

9. The anti-dry-burning atomizer according to claim 7, characterized in that, The gap between the edge of the atomizing plate and the inner wall of the slot is filled with sealant.

10. An electrical appliance, characterized in that, Includes the anti-dry-burning atomizer as described in any one of claims 1 to 9.

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