Piezoelectric micro liquid pump and electronic cigarette

Abstract

The utility model discloses a piezoelectric micro liquid pump and electronic cigarette, relate to electronic cigarette technical field. Piezoelectric micro liquid pump includes: casing, diaphragm and at least two piezoelectric vibrator, be provided with at least two pump cavities in casing, and casing is provided with the liquid inlet and liquid outlet of intercommunication pump cavity, and the diaphragm is fixed in casing, and each piezoelectric vibrator is fixed in the diaphragm, and with each pump cavity corresponds, and piezoelectric vibrator is electrified, and each piezoelectric vibrator sequentially deforms and drives the diaphragm to sequentially deform and compress, and the liquid that liquid inlet enters into the pump cavity under the compression force of the push of flowing from the liquid outlet, so that, the liquid volume of conveying can be controlled, in the use to electronic cigarette, the tobacco tar volume of conveying to heating element can be effectively controlled, improve the heating efficiency of heating element, improve the user's smoking taste.

Description

Technical Field

[0001] This utility model relates to the field of electronic cigarette technology, and in particular to a piezoelectric micro liquid pump and an electronic cigarette. Background Technology

[0002] E-cigarette e-liquid is typically delivered to the heating element via a siphon-type liquid intake device (such as absorbent cotton) or a liquid container. When delivered in this way, the volume of e-liquid delivered to the heating element is uncontrollable. Whether too much or too little e-liquid is delivered, the heating efficiency of the heating element will decrease. Insufficient e-liquid delivery may cause the heating element to overheat, leading to dry burning and damage. Excessive e-liquid delivery may result in insufficient atomization, significantly reducing vapor production and resulting in a poor user experience. Utility Model Content

[0003] Therefore, it is necessary to provide a piezoelectric micro liquid pump and electronic cigarette to solve the problems that the volume of e-liquid delivered by the existing delivery method cannot be controlled, which may lead to dry burning and damage to the heating element or insufficient atomization of e-liquid, resulting in a significant reduction in the amount of vapor and a poor taste for the user.

[0004] In a first aspect, this utility model provides a piezoelectric micro liquid pump, which includes: a housing, a diaphragm, and at least two piezoelectric vibrators. The housing has at least two pump chambers and an inlet and an outlet communicating with the pump chambers. The diaphragm is fixed inside the housing, and each piezoelectric vibrator is fixed to the diaphragm and corresponds to each pump chamber. When the piezoelectric vibrators are energized, each piezoelectric vibrator deforms sequentially, causing the diaphragm to deform and compress sequentially. Liquid entering the pump chamber through the inlet flows out through the outlet under the compression force.

[0005] In one embodiment, the sidewall of the pump chamber protrudes beyond the bottom wall of the housing, and the diaphragm covers the top of the pump chamber.

[0006] In one embodiment, a flow channel is provided between each of the pump chambers, and each of the pump chambers is connected through the flow channel. The flow channel is V-shaped with a wide inlet and a narrow outlet. The liquid inlet and the liquid outlet are respectively connected to the inlet and outlet of the flow channel.

[0007] In one embodiment, the housing includes a cover and a housing body, the cover being detachably connected to the housing body.

[0008] In one embodiment, the cover is provided with a buckle, the shell body is provided with a slot, and the buckle engages with the slot.

[0009] In one embodiment, multiple buckles are provided and spaced apart along the outer periphery of the cover, and multiple slots are provided and corresponding to the buckles one by one.

[0010] In one embodiment, the housing includes a cover and a housing body, the cover being welded to the housing body.

[0011] In one embodiment, the piezoelectric micro pump further includes a seal sandwiched between the cover and the diaphragm.

[0012] In one embodiment, the piezoelectric micro liquid pump further includes an inlet pipe and an outlet pipe, the inlet pipe being connected to the inlet port and the outlet pipe being connected to the outlet port.

[0013] Secondly, this utility model also provides an electronic cigarette, which includes the piezoelectric micro-liquid pump of any of the above embodiments.

[0014] Implementing the embodiments of this utility model will have the following beneficial effects: The piezoelectric micro liquid pump and electronic cigarette of this invention have at least two pump chambers inside their housing. The housing has an inlet and an outlet connecting the pump chambers. A diaphragm is fixed inside the housing, and each piezoelectric vibrator is fixed to the diaphragm and corresponds to each pump chamber. When the piezoelectric vibrators are energized, they deform sequentially, causing the diaphragm to deform and compress sequentially. The liquid entering the pump chamber through the inlet flows out through the outlet under the compression force. In this way, the volume of liquid delivered can be controlled. When used in an electronic cigarette, the volume of e-liquid delivered to the heating element can be effectively controlled, improving the heating efficiency of the heating element and enhancing the user's inhalation experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] in: Figure 1 This is an isometric schematic diagram of a piezoelectric micro-liquid pump in one embodiment.

[0017] Figure 2 for Figure 1 The diagram shows an explosion of a piezoelectric micro-liquid pump.

[0018] Figure 3 for Figure 1 The image shows a cross-sectional view of a piezoelectric micro-liquid pump.

[0019] Figure 4 This is a schematic diagram of the sequential deformation process of the diaphragm in a piezoelectric micro-liquid pump.

[0020] Figure label: 1. Shell; 11. Cover; 111. Buckle; 12. Shell body; 121. Slot; 2. Diaphragm; 3. Piezoelectric vibrator; 4. Seal; 5. Inlet pipe; 6. Outlet pipe; 100. Pump chamber; 101. Liquid inlet; 102. Liquid outlet; 103. Flow channel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, 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, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0025] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0026] Please combine them together Figures 1 to 4 The piezoelectric micro-liquid pump provided by this utility model will now be described. The piezoelectric micro-liquid pump is used in electronic cigarettes.

[0027] The piezoelectric micro liquid pump includes: a housing 1, a diaphragm 2, and at least two piezoelectric vibrators 3. The housing 1 is provided with at least two pump chambers 100. The housing 1 is provided with an inlet 101 and an outlet 102 communicating with the pump chambers 100. The diaphragm 2 is fixed inside the housing 1. Each piezoelectric vibrator 3 is fixed to the diaphragm 2 and corresponds to each pump chamber 100. When the piezoelectric vibrators 3 are energized, each piezoelectric vibrator 3 deforms in sequence, causing the diaphragm 2 to deform and compress in sequence. The liquid entering the pump chamber 100 through the inlet 101 flows out through the outlet 102 under the push of the compression force. In this way, the volume of liquid delivered can be controlled. When used in electronic cigarettes, the volume of e-liquid delivered to the heating element can be effectively controlled, improving the heating efficiency of the heating element and improving the user's inhalation experience.

[0028] It should be noted that there are three piezoelectric vibrators 3 and three pump chambers 100. When the first piezoelectric vibrator 3 causes the diaphragm 2 to deform and compress, the diaphragms 2 on the other piezoelectric vibrators 3 are in their original state. The piezoelectric vibrators 3 are energized in sequence and deform, causing the diaphragms 2 to deform and expand in sequence. Liquid enters the pump chamber 100 in sequence from the inlet 101, and the liquid in the pump chamber 100 flows out from the outlet 102.

[0029] In this embodiment, the sidewall of the pump chamber 100 protrudes from the bottom wall of the housing 1, and the diaphragm 2 covers the top of the pump chamber 100. This allows the connection between the diaphragm 2 and the top of the pump chamber 100 to support the diaphragm 2, ensuring that the diaphragm 2 deforms and compresses the pump chamber 100 only at its position relative to the pump chamber 100. Furthermore, there is no need for a valve plate, thus avoiding valve plate blockage.

[0030] Furthermore, each pump chamber 100 is connected to another pump chamber 100 via a flow channel 103, which is V-shaped with a wide inlet and a narrow outlet. This allows the liquid to enter the flow channel 103 quickly, and then slowly enter the pump chamber 100. The inlet 101 and outlet 102 are connected to the inlet and outlet of the flow channel 103, respectively. Liquid enters the pump chamber 100 through the inlet 101 via the flow channel 103, and the liquid in the pump chamber 100 then flows out through the outlet 102 via the flow channel 103.

[0031] In one embodiment, such as Figure 2 As shown, there are multiple ways to connect the cover 11 and the shell body 12.

[0032] In one embodiment, the housing 1 includes a cover 11 and a housing body 12, the cover 11 and the housing body 12 being detachably connected. This makes it easy to assemble the cover 11 and the housing body 12 without the need for adhesive.

[0033] Specifically, the cover 11 is provided with a buckle 111, and the shell body 12 is provided with a slot 121, with the buckle 111 engaging with the slot 121. In this way, the cover 11 and the shell body 12 can be detachably connected.

[0034] Furthermore, multiple buckles 111 are provided and spaced apart along the outer periphery of the cover 11, and multiple slots 121 are provided and corresponding one-to-one with the buckles 111. This improves the stability of the connection between the cover 11 and the shell body 12.

[0035] In another embodiment, the housing 1 includes a cover 11 and a housing body 12, with the cover 11 welded to the housing body 12. The cover 11 and the housing body 12 are ultrasonically welded, enabling the cover 11 to be connected to the housing body 12.

[0036] In one embodiment, such as Figure 2 and Figure 3 As shown, the piezoelectric micro liquid pump also includes a seal 4, which is sandwiched between the cover 11 and the diaphragm 2. The seal 4 is a sealing ring. The seal 4 is sandwiched between the cover 11 and the diaphragm 2, and the diaphragm 2 is pressed against the protrusion 13, which can improve the sealing performance of the liquid tank 100 and prevent the liquid in the liquid tank 100 from flowing out.

[0037] In one embodiment, such as Figure 2 As shown, the piezoelectric micro liquid pump also includes an inlet pipe 5 and an outlet pipe 6. The inlet pipe 5 is connected to the inlet port 101, and the outlet pipe 6 is connected to the outlet port 102. The liquid flows into the liquid tank 100 through the inlet pipe 5 via the inlet port 101, and the liquid in the liquid tank 100 then flows out through the outlet pipe 6 via the outlet port 102.

[0038] This invention also provides an electronic cigarette, which includes the piezoelectric micro liquid pump of any of the above embodiments.

[0039] It is understood that the electronic cigarette of this utility model uses the aforementioned piezoelectric micro liquid pump, which provides at least two pump chambers 100 within the housing 1 of the piezoelectric micro liquid pump. The housing 1 is provided with an inlet 101 and an outlet 102 communicating with the pump chambers 100. The diaphragm 2 is fixed inside the housing 1, and each piezoelectric vibrator 3 is fixed to the diaphragm 2 and corresponds to each pump chamber 100. When the piezoelectric vibrator 3 is energized, each piezoelectric vibrator 3 deforms in sequence, causing the diaphragm 2 to deform and compress in sequence. The liquid entering the pump chamber 100 through the inlet 101 flows out through the outlet 102 under the pressure of compression. In this way, the volume of liquid delivered can be controlled. When used in an electronic cigarette, the volume of e-liquid delivered to the heating element can be effectively controlled, improving the heating efficiency of the heating element and enhancing the user's inhalation experience.

[0040] 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.

[0041] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A piezoelectric micro liquid pump, characterized in that, The piezoelectric micro liquid pump includes: a housing, a diaphragm, and at least two piezoelectric vibrators. The housing has at least two pump chambers and an inlet and an outlet communicating with the pump chambers. The diaphragm is fixed inside the housing, and each piezoelectric vibrator is fixed to the diaphragm and corresponds to each pump chamber. When the piezoelectric vibrators are energized, each piezoelectric vibrator deforms sequentially, causing the diaphragm to deform and compress sequentially. Liquid entering the pump chamber through the inlet flows out through the outlet under the compression force.

2. The piezoelectric micro-liquid pump according to claim 1, characterized in that, The sidewall of the pump chamber protrudes from the bottom wall of the housing, and the diaphragm covers the top of the pump chamber.

3. The piezoelectric micro-liquid pump according to claim 2, characterized in that, Each of the pump chambers is provided with a flow channel, and each of the pump chambers is connected through the flow channel. The flow channel is "V" shaped with a wide inlet and a narrow outlet. The liquid inlet and the liquid outlet are respectively connected to the inlet and outlet of the flow channel.

4. The piezoelectric micro-liquid pump according to claim 1, characterized in that, The housing includes a cover and a housing body, and the cover and the housing body are detachably connected.

5. The piezoelectric micro-liquid pump according to claim 4, characterized in that, The cover is provided with a buckle, and the shell body is provided with a slot, and the buckle is engaged with the slot.

6. The piezoelectric micro-liquid pump according to claim 5, characterized in that, The buckles are provided in multiple locations and are spaced apart along the outer periphery of the cover. The slots are provided in multiple locations and are provided one-to-one with the buckles.

7. The piezoelectric micro-liquid pump according to claim 1, characterized in that, The shell includes a cover and a shell body, and the cover is welded to the shell body.

8. The piezoelectric micro-liquid pump according to any one of claims 4-7, characterized in that, The piezoelectric micro pump also includes a seal, which is sandwiched between the cover and the diaphragm.

9. The piezoelectric micro-liquid pump according to claim 1, characterized in that, The piezoelectric micro liquid pump also includes an inlet pipe and an outlet pipe, the inlet pipe being connected to the inlet port and the outlet pipe being connected to the outlet port.

10. An electronic cigarette, characterized in that, The electronic cigarette includes a piezoelectric micro-liquid pump as described in any one of claims 1-9.

Images