Power supply unit and electronic atomization device

Abstract

The present invention provides a power supply unit and an electronic atomizer device. The power supply unit includes a housing assembly, an air pressure sensor, a battery assembly, and a first sealing member. The housing assembly has an air inlet connected to the outside and a receiving space for receiving an atomizer. The air inlet maintains fluid communication with the receiving space via an air inlet channel. The air pressure sensor is disposed within the housing assembly and is in fluid communication with the receiving space via an air pressure detection channel. When the atomizer is received within the receiving space, both the air pressure detection channel and the air inlet channel can maintain fluid communication with the internal air passage of the atomizer. The first sealing member is at least partially positioned within the receiving space and configured to simultaneously seal the air flow path between the air pressure detection channel, the air inlet channel, and the atomizer. This prevents air from rapidly entering the air inlet channel. The air pressure sensor can quickly detect changes in air pressure within the air inlet channel, thereby increasing the sensitivity of the air pressure sensor in triggering the electronic atomizer device to turn on or off.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generating equipment, and in particular to a power supply unit and an electronic atomization device. Background Art

[0002] An electronic atomization device generally includes an atomizer and a power supply unit. The power supply unit is used to supply power to the atomizer, and the atomizer is used to atomize the liquid matrix into an aerosol. In order to conveniently open or close the electronic atomization device, a pneumatic switch is generally used to control the opening or closing of the electronic atomization device. That is, when the user draws on the electronic atomization device, the air pressure sensor detects the air pressure change in the air flow channel, and the electronic atomization device turns on and works. When the user does not draw on the electronic atomization device, the air pressure sensor detects that the air pressure change in the air flow channel is decreasing, and the electronic atomization device stops working. In order for the electronic atomization device to accurately respond to the user's operation (drawing), it is very important that the air pressure sensor can quickly detect the air pressure change in the air flow channel. The inventors discovered that current air pressure sensors are generally installed on the power supply unit. In addition to entering the air flow channel from the air inlet, air also enters the air flow channel from the gap between the power supply unit and the atomizer. When the user inhales, a large amount of air quickly enters the air flow channel from the gap to relieve the negative pressure in the air flow channel, resulting in small changes in the air pressure in the air flow channel. The air flow sensor cannot quickly detect the air pressure changes in the air flow channel, causing the electronic atomization device to fail to start normally or to start with a delay. Summary of the Invention

[0003] In response to the above-mentioned problems, the purpose of this application is to provide a power supply unit and an electronic atomization device so that when the electronic atomization device is inhaled, the air pressure sensor can quickly detect the changes in air pressure in the air inlet channel, thereby improving the sensitivity of the air pressure sensor to trigger the electronic atomization device to turn on or off.

[0004] The technical solutions adopted in this application are as follows:

[0005] A power supply unit for supplying power to an atomizer, comprising:

[0006] A housing assembly having an air inlet communicating with the outside and a receiving space for at least partially receiving the atomizer, wherein the air inlet is in fluid communication with the receiving space via an air inlet passage;

[0007] an air pressure sensor disposed in the housing assembly and in fluid communication with the receiving space via an air pressure detection channel;

[0008] a battery assembly, disposed in the housing assembly;

[0009] wherein when the atomizer is accommodated in the accommodation space, the air pressure detection channel and the air inlet channel can maintain fluid communication with the internal air passage of the atomizer; and

[0010] The first sealing member is at least partially positioned in the receiving space and is configured to simultaneously provide sealing for the air pressure detection channel, the air inlet channel and the air flow path between the atomizer.

[0011] Furthermore, the power supply unit according to claim 1 is characterized in that the bottom of the accommodating space has a first end surface, and the air pressure detection channel and one of the air flow ports of the air inlet channel are both located on the first end surface.

[0012] Furthermore, at least a portion of the first sealing member defines an airflow triggering cavity, and the air pressure detection channel and the air inlet channel are both connected to the airflow triggering cavity.

[0013] Furthermore, the housing assembly includes a bracket having a first end and a second end opposite to the first end; the air pressure detection channel and the air inlet channel are both formed on the bracket and are adjacent to each other.

[0014] Furthermore, a first space is provided at the first end, and both the air pressure detection channel and the air inlet channel are in communication with the first space; at least a portion of the first sealing member is accommodated in the first space.

[0015] Furthermore, a second space is provided at the second end, the second space is communicated with the air pressure detection channel, and at least a portion of the air pressure sensor is accommodated in the second space.

[0016] Furthermore, a fourth sealing member is provided between the air pressure sensor and the bracket to seal the gap between the air pressure sensor and the bracket.

[0017] Furthermore, the shell assembly includes an outer shell and a bracket, the bracket is arranged in the outer shell; the air inlet is arranged on the side wall of the outer shell; the side wall of the bracket is provided with a third connecting port, and the air inlet and the air intake channel are connected through the third connecting port.

[0018] Furthermore, the air inlet and the third communication port are staggered in the radial direction of the housing assembly.

[0019] Furthermore, the bracket is provided with a first air flow channel, and the air inlet and the third communication port are communicated with each other through the first air flow channel.

[0020] Furthermore, the first air flow channel includes a groove extending along the circumference of the bracket.

[0021] Furthermore, it also includes a second sealing member and a third sealing member, which are located on both sides of the groove and between the bracket and the shell.

[0022] An electronic atomization device comprises the above-mentioned power supply unit and an atomizer, wherein the power supply unit is used to supply power to the atomizer.

[0023] In summary, the beneficial effects of this application are:

[0024] The air flow path between the air pressure detection channel, the air intake channel and the atomizer is sealed to prevent air from quickly entering the air intake channel. The air pressure sensor can quickly detect changes in air pressure in the air intake channel, thereby improving the sensitivity of the air pressure sensor to trigger the electronic atomization device to turn on or off. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0026] Figure 1 It is a schematic diagram of an electronic atomization device;

[0027] Figure 2 is a schematic diagram of the power supply unit;

[0028] Figure 3 It is a cross-sectional view of the atomizer;

[0029] Figure 4 is a cross-sectional view of the power supply unit;

[0030] Figure 5 It is a structural diagram of the bracket. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar modifications without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0032] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] refer to Figure 1 , the electronic atomization device of the embodiment of the present application includes a nebulizer 100 and a power supply unit 200, wherein the power supply unit 200 is used to supply power to the nebulizer 100, and the nebulizer 100 is used to atomize the liquid matrix to generate an aerosol. The power supply unit 200 is detachably connected to the nebulizer 100 in the length direction. The detachable connection can be implemented in such a way that the nebulizer 100 is connected to the power supply unit 200 by means of threads, or the nebulizer 100 is connected to the power supply unit 200 by means of magnetism, or the nebulizer 100 is connected to the power supply unit 200 by means of a snap. Here, only the implementation methods of the detachable connection are listed, and there is no limitation to these detachable connection methods. It is only necessary to ensure that the power supply unit 200 can stably supply power to the nebulizer 100.

[0035] See also Figure 3 and Figure 4 The power supply unit 200 includes a housing assembly 50 and a battery assembly 90. The housing assembly 50 is provided with a receiving space 93 and a battery receiving space 91. When the atomizer 100 and the power supply unit 200 are connected, the atomizer 100 is at least partially received in the receiving space 93. The battery assembly 90 is provided in the battery receiving space 91. The housing assembly 50 has a side surface 60, and the side surface 60 is provided with an air inlet 63 (see FIG. Figure 1 and Figure 2 ), the first end face 61 is provided with a first communication port 62 (air flow port). The bottom of the receiving space 93 has a first end face 61, and when the power supply unit 200 is connected to the atomizer 100, the first end face 61 is opposite to the atomizer 100. The first communication port 62 and the air inlet 63 are connected to form an air inlet channel 64 connected to the outside. The air inlet 63 is in fluid communication with the receiving space 93 via the air inlet channel 64. The power supply unit 200 also includes an air pressure sensor 92 (microphone), which is provided in the housing assembly 50 and is in fluid communication with the receiving space 93 through an air pressure detection channel 67. The atomizer 100 is provided with a second air flow channel 10 (see Figure 3 ), when the power supply unit 200 is connected to the atomizer 100, the air inlet channel 64 is in fluid communication with the second air flow channel 10 via the first communication port 62 (for air flow direction, see Figure 3 ); the air pressure detection channel 67 is in fluid communication with the second air flow channel 10. The power supply unit 200 also includes a first seal 71, which is at least partially positioned in the receiving space 93, so that the air inlet channel 64 is sealed and connected to the second air flow channel 10, and the air pressure detection channel 67 is sealed and connected to the second air flow channel 10. When the user inhales the electronic atomization device, the air inlet channel 64 is sealed and connected to the second air flow channel 10, and the air pressure detection channel 67 is sealed and connected to the second air flow channel 10, which can prevent air from quickly entering the air inlet channel 64, causing the air pressure sensor 92 to detect a small change in air pressure, and the electronic atomization device is started, which requires the negative pressure in the air inlet channel 64 to reach a preset value, thereby causing the electronic atomization device to fail to start normally or to be delayed in starting. The air inlet 63 is provided on the side 60 of the housing assembly 50 instead of on the bottom of the housing assembly 50 in order to prevent condensation in the atomizer 100 from flowing onto the battery assembly 90 through the air inlet channel 64 and contaminating the battery assembly 90 .

[0036] See also Figure 4 The shell assembly 50 includes a shell 51 and a bracket 52. The bracket 52 is provided in the shell 51 and is fixed to the shell 51. The shell 51 is U-shaped. The bracket 52 divides the space in the shell 51 into a battery accommodating space 91 and a receiving space 93. The battery accommodating space 91 and the receiving space 93 are in an upper and lower relationship, and the receiving space 93 is above the battery accommodating space 91. The first communication port 62 is provided on the end face of the bracket 52; the air inlet 63 is provided on the side wall of the shell 51; the side wall of the bracket 52 is provided with a third communication port 65, and the first communication port 62 and the air inlet 63 are connected through the third communication port 65. See Figure 4 and Figure 5 The bracket 52 is provided with a first airflow channel 523, through which the air inlet 63 and the third communication port 65 are connected. The first airflow channel 523 extends along the circumference of the bracket 52. On the one hand, if the housing is cylindrical, the air inlet 63 and the third communication port 65 are not aligned, and the air inlet 63 and the third communication port 65 can still communicate through the first airflow channel 523, facilitating assembly of the atomizer 100 and the power supply unit 200. On the other hand, the air inlet 63 and the third communication port 65 are staggered in the radial direction of the housing assembly 50, extending the air inlet channel 64, slowing the speed at which air enters the housing assembly 50, increasing the draw resistance, and improving the triggering sensitivity of the air pressure sensor 92. The first airflow channel 523 includes a groove provided on the side wall of the bracket 52.

[0037] See also Figure 3 、 Figure 4 and Figure 5 , the power supply unit also includes a sealing assembly for sealing the groove, so that the first airflow channel is sealed and connected to the air inlet and the third connecting port. Specifically, the sealing assembly includes a second seal 72 and a third seal 73, and the second seal 72 and the third seal 73 are located on both sides of the groove and between the bracket 52 and the housing 51. The second seal 72 can isolate the third connecting port 65 from the battery accommodating space 91. On the one hand, it can prevent the harmful gas emitted by the battery assembly 90 from entering the air inlet channel 64, damaging the health of the user and causing the air to quickly enter the air inlet channel 64, causing the start-up of the electronic atomization device to be delayed; on the other hand, it can prevent the condensate in the atomizer 100 from flowing through the air inlet channel 64 to the battery assembly 90, damaging the battery assembly 90. See Figure 5 , a first groove 521 is provided on the side of the bracket 52, and the first groove 521 extends in the circumferential direction of the bracket 52. The second sealing member 72 is provided in the first groove 521. The third sealing member 73 can isolate the third communication port 65 from the open end (accommodation space 93) of the shell 51 to prevent a large amount of air from entering the third communication port 65 through the gap at the connection between the atomizer 100 and the power supply unit 200, causing the air pressure in the air inlet channel 64 to change little when the user inhales the electronic atomization device, and the start-up of the electronic atomization device to be delayed. The specific installation position of the third sealing member 73 is between the bracket 52 and the shell 51. Although the third sealing member 73 is provided between the atomizer 100 and the shell 51 to isolate the third communication port 65 from the open end of the shell 51, when plugging and unplugging the atomizer 100, due to the friction between the third sealing member 73 and the atomizer 100, the atomizer 100 and the power supply unit 200 are inconvenient to install. See Figure 5 The side surface of the bracket 52 is provided with a second groove 522 , and the second groove 522 extends in the circumferential direction of the bracket 52 . The third sealing member 73 is provided in the second groove 522 .

[0038] See also Figure 4 The bracket 52 includes a first end adjacent to the receiving space 93 and a second end opposite to the first end. The first end is provided with a first space. The air pressure detection channel 67 and the air inlet channel 64 are both connected to the first space. The first sealing member 71 is fixed to the first space. The first sealing member 71 includes a bottom 711 and a side wall portion 712 surrounding the bottom 711. The first sealing member 71 is U-shaped. The first sealing member 71 defines an airflow triggering chamber 66 (see Figure 3), the bottom portion 711 defines a through hole corresponding to the first communication port 62 and is sealedly connected to the first communication port 62. When the atomizer 100 and the power supply unit 200 are connected, the atomizer 100 abuts against the side wall portion 712, and the air inlet channel 64 is sealedly connected to the second air flow channel 10 via the airflow triggering chamber 66.

[0039] See also Figure 4 The air pressure detection channel 67 and the air inlet channel 64 are both formed on the bracket 52 and are arranged adjacent to each other. The pressure detection channel 67 is connected to the air inlet channel 64. The specific arrangement of the air pressure detection channel 67 and the air inlet channel 64 is as follows: the first end surface 61 is provided with a second communication port 68 (air flow port), and the second communication port 68 is connected to the air flow triggering chamber 66. Because the first communication port 62 is also connected to the air flow triggering chamber 66, the second communication port 68 is connected to the first communication port 62, thereby realizing the connection between the second communication port 68 and the first communication port 62, thereby realizing the connection between the air inlet channel 64 and the air pressure detection channel 67. In order to improve the sensitivity of the air pressure sensor triggering, the inner diameter or cross-section of the air inlet channel 64 is designed to be larger than the inner diameter or cross-section of the air pressure detection channel 67. Some possible implementation schemes are specifically embodied in that the diameter of the second communication port 68 is smaller than the diameter of the first communication port 62. The second end is provided with a second space, which is connected to the air pressure detection channel 67. The air pressure sensor 92 is fixed in the second space. One side of the air pressure sensor 92 is connected to the air pressure detection channel 67, and the other side of the air pressure sensor 92 is connected to the battery storage space 91 (the outside world). The air pressure sensor 92 detects the air pressure changes in the air pressure detection channel 67 instead of directly detecting the air pressure changes in the air intake channel 64. This is because the air inlet of the air intake channel 64 is connected to the outside world. When inhaling, the air pressure changes in the air intake channel 64 are smaller than those in the air pressure detection channel 67, making it difficult to detect the air pressure changes. In order to prevent air from entering the air pressure detection channel 67 through the gap between the bracket 52 and the air pressure sensor 92, a fourth sealing member 69 is provided between the bracket 52 and the air pressure sensor 92.

[0040] See also Figure 3The atomizer includes a housing 1 and an atomizing assembly. The housing 1 has a second air flow channel 10 along its length, and the atomizing assembly is arranged in the second air flow channel 10. The housing 1 has a liquid storage chamber for storing a liquid matrix. The atomizing assembly includes a liquid guiding element 2 and a heating element 3. The liquid storage chamber is provided with a liquid outlet. The liquid matrix in the liquid storage chamber flows to the liquid guiding element 2 through the liquid outlet. The liquid guiding element 2 is made of a porous material (such as porous ceramic) or fiber (cotton) and can adsorb and lock the liquid matrix. The heating element 3 is fixed to the liquid guiding element 2 to heat and atomize the liquid matrix on the liquid guiding element 2 to form an aerosol. The positive and negative electrodes of the heating element 3 are electrically connected to the first electrode 4 and the second electrode 5 respectively. The first electrode 4 and the second electrode 5 are electrically connected to the first electrode column 80 and the second electrode column 81 of the power supply unit 200 respectively. The first electrode column 80 and the second electrode column 81 are electrically connected to the battery assembly 90, so that the battery assembly 90 can supply power to the heating element 3. The housing 1 is provided with a suction nozzle 6 at the suction end. The suction nozzle 6 is partially inserted into the housing 1 and can be pulled out.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power supply unit for supplying power to an atomizer, characterized in that: include: A housing assembly having an air inlet communicating with the outside and a receiving space for at least partially receiving the atomizer, wherein the air inlet is in fluid communication with the receiving space via an air inlet passage; an air pressure sensor disposed in the housing assembly and in fluid communication with the receiving space via an air pressure detection channel; a battery assembly, disposed in the housing assembly; wherein when the atomizer is accommodated in the accommodation space, the air pressure detection channel and the air inlet channel can maintain fluid communication with the internal air passage of the atomizer; and a first sealing member, at least partially positioned within the receiving space, configured to simultaneously seal the air flow path between the air pressure detection channel, the air inlet channel, and the atomizer; at least a portion of the first sealing member defines an air flow triggering cavity, the air pressure detection channel and the air inlet channel being connected to the air flow triggering cavity; The housing assembly includes a shell and a bracket, the bracket is arranged in the shell; the air inlet is arranged on the side wall of the shell; the side wall of the bracket is provided with a third communication port, and the air inlet and the air inlet channel are connected through the third communication port; The air inlet and the third communication port are staggered in the radial direction of the housing assembly; The bracket is provided with a first air flow channel, and the air inlet is connected to the third communication port via the first air flow channel; The first air flow channel includes a groove extending along the circumference of the bracket; The invention also includes a second sealing member and a third sealing member, wherein the second sealing member and the third sealing member are located on both sides of the groove and between the bracket and the housing.

2. The power supply unit according to claim 1, wherein The bottom of the receiving space has a first end surface, and the air pressure detection channel and one of the air flow ports of the air inlet channel are both located on the first end surface.

3. The power supply unit according to claim 1, wherein: The housing assembly includes a bracket having a first end and a second end opposite to the first end; the air pressure detection channel and the air inlet channel are both formed on the bracket and are adjacent to each other.

4. The power supply unit according to claim 3, wherein: The first end is provided with a first space, and the air pressure detection channel and the air inlet channel are both communicated with the first space; at least a portion of the first sealing member is accommodated in the first space.

5. The power supply unit according to claim 3, wherein: The second end is provided with a second space, the second space is communicated with the air pressure detection channel, and at least a portion of the air pressure sensor is accommodated in the second space.

6. The power supply unit according to claim 5, wherein: A fourth sealing member is provided between the air pressure sensor and the bracket to seal the gap between the air pressure sensor and the bracket.

7. An electronic atomization device, comprising the power supply unit according to any one of claims 1 to 6 and an atomizer, wherein the power supply unit is used to supply power to the atomizer.

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