Detection device for detecting permeability of an atomization assembly

Abstract

The application relates to a detection device for detecting the permeability of an atomization assembly, which comprises a clamp, a pressure detection module, a suction module and a calculation module. The clamp is provided with a liquid flow channel, the two ends of the liquid flow channel are provided with liquid inlets and liquid outlets, and the atomization assembly is installed in the liquid flow channel. The suction module is in fluid communication with the liquid inlet. The pressure detection module comprises a first detection end and a second detection end. The first detection end extends into the liquid flow channel and is located on the side of the atomization assembly facing the liquid inlet. The second detection end extends into the liquid flow channel and is located on the side of the atomization assembly facing the liquid outlet. The calculation module is in communication connection with the suction module and the pressure detection module. The calculation module is used for acquiring parameters and calculating the permeability of the atomization assembly, thereby knowing the liquid supply performance, liquid locking performance and other parameters of the atomization assembly, and having important significance for the design of the electronic atomizer, solving the problems of dry burning prevention and oil leakage prevention and the like.

Description

Technical Field

[0001] This application relates to the field of atomization component testing technology, and in particular to a testing device for detecting the permeability of atomization components. Background Technology

[0002] Electronic atomizers, also known as electronic cigarettes, have an atomizing component as their core component. The atomizing component heats the atomizing liquid to create vapor that the user can inhale, simulating the sensation of smoking. In related technologies, atomizing components typically consist of a porous substrate and a heating element mounted on the porous substrate. The porous substrate absorbs and transports the atomizing medium, while the heating element heats the atomizing liquid to form vapor.

[0003] As is well known, the permeability of a material is a physical quantity that measures the ability of a porous material or material with a specific microstructure to allow fluids (liquid or gas) to pass through its internal pores or channels. It reflects how easily a material impedes or conducts fluid flow. Atomizing components also exhibit permeability, which determines various parameters such as liquid supply and retention performance, and is of great significance for the design of electronic atomizers and for solving problems related to preventing dry burning and oil leakage. However, current technology lacks a convenient and quick device for detecting the permeability of atomizing components. Utility Model Content

[0004] Therefore, it is necessary to address the lack of a convenient and quick detection device for detecting the permeability of atomizing components in the existing technology, and to provide a detection device that can be used to detect the permeability of atomizing components in a convenient and quick manner.

[0005] According to one aspect of this application, a detection device for detecting the permeability of an atomizing component is provided, comprising:

[0006] The clamp has a liquid flow channel extending through its two opposite ends, with the two opposite ends of the liquid flow channel being an inlet and an outlet, respectively, and the atomizing component is installed inside the liquid flow channel;

[0007] A suction module, wherein the suction module is in fluid communication with the liquid inlet;

[0008] The pressure detection module includes a first detection end and a second detection end. The first detection end extends into the liquid flow channel and is located on the side of the atomizing component facing the liquid inlet. The second detection end extends into the liquid flow channel and is located on the side of the atomizing component facing the liquid outlet.

[0009] The calculation module is communicatively connected to the suction module and the pressure detection module to obtain parameters and calculate the permeability of the atomizing component.

[0010] In one embodiment, the clamp has a first threading hole on one side of the liquid inlet that communicates with the liquid flow channel, and a second threading hole on one side of the liquid outlet. The first threading hole is for the first detection end to pass through, and the second threading hole is for the second detection end to pass through.

[0011] In one embodiment, the first detection end includes a first pressure sensor, and the second detection end includes a second pressure sensor.

[0012] In one embodiment, the fixture has a first mounting groove that connects to the first threaded hole and a second mounting groove that connects to the second threaded hole, the first pressure sensor being mounted in the first mounting groove and the second pressure sensor being mounted in the second mounting groove.

[0013] In one embodiment, the clamp has a receiving groove for mounting the atomizing component, and the liquid flow channel passes through and communicates with the receiving groove.

[0014] In one embodiment, the clamp includes a front cover and a rear cover that are detachably connected to each other, the liquid flow channel includes a first sub-channel and a second sub-channel that are interconnected, the first sub-channel penetrates through the front cover, the liquid inlet is located on the side of the front cover away from the rear cover, the second sub-channel penetrates through the rear cover, and the liquid outlet is located on the side of the rear cover away from the front cover.

[0015] In one embodiment, the clamp has a receiving groove for mounting the atomizing component, at least a portion of the receiving groove being located on the side of the front cover facing the rear cover, or at least a portion of the receiving groove being located on the side of the rear cover facing the front cover.

[0016] In one embodiment, the suction module includes a stepper motor and a syringe containing fluid. The syringe includes an open end and a propulsion end. The stepper motor is connected to the propulsion end, and the open end is connected to the inlet.

[0017] In one embodiment, the suction module further includes a control component for controlling the propulsion speed of the stepper motor.

[0018] In one embodiment, the outlet is connected to a fluid collector for collecting fluid that has permeated through the atomizing component from the outlet.

[0019] The aforementioned detection device for measuring the permeability of an atomizing component utilizes a clamp to create a liquid flow channel. A suction module is connected to the inlet of this channel. A pressure detection module is also included, with its first detection end extending into the liquid flow channel on the side of the atomizing component facing the inlet, and its second detection end extending into the same channel on the side facing the outlet. When an atomizing component is contained within the liquid flow channel, the suction module injects fluid into the channel at a specific speed. The pressure detection module then acquires the pressure parameters on both the inlet and outlet sides of the atomizing component. This allows for the calculation of the permeability of the atomizing component, providing a convenient and quick way to determine its ability to allow fluid to pass through its internal pores or channels. This is crucial for understanding various parameters such as the liquid supply and retention performance of the atomizing component, and is significant for the design of electronic atomizers and for addressing issues like dry-burning and oil leakage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a detection device for detecting the permeability of an atomizing component, provided in an embodiment of this application.

[0021] Figure 2 This is a cross-sectional view of the fixture in a detection device for detecting the permeability of an atomizing component, provided in an embodiment of this application.

[0022] Figure 3 This is an axonometric view of the fixture in a detection device for detecting the permeability of an atomizing component, provided in an embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Detection device; 100. Fixture; 101. Liquid flow channel; 101a. First sub-channel; 101b. Second sub-channel; 102. Liquid inlet; 103. Liquid outlet; 104. Receiving tank; 105. First wire hole; 106. Second wire hole; 107. First mounting slot; 108. Second mounting slot; 110. Front cover; 111. Body; 112. Flange; 113. Screw hole; 120. Rear cover; 200. Pressure detection module; 201. First detection end; 202. Second detection end; 210. First pressure sensor; 220. Second pressure sensor; 300. Suction module; 400. Fluid collector; 500. First fluid pipe; 600. Second fluid pipe; 70. Atomizing component. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component 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 application.

[0027] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0031] One embodiment of this application provides a detection device for detecting the permeability of an atomizing component, so as to know the ability of the atomizing component to allow fluid to pass through its internal pores or channels by detecting the permeability of the atomizing component.

[0032] The following description uses an example of an atomizing component in an electronic cigarette and e-liquid as the fluid to illustrate the structure of the detection device in this application. This embodiment is merely illustrative and does not limit the technical scope of this application. It is understood that in other embodiments, the detection device provided in this application is not limited to detecting the permeability of an atomizing component used in an electronic cigarette, but can also be used to detect the permeability of an atomizing component in any other electronic atomizer capable of atomizing a medium into an aerosol, and even to detect the permeability of any article capable of penetrating liquids; no limitation is made here.

[0033] See Figure 1 , Figure 1A schematic diagram of the structure of a detection device 10 (hereinafter referred to as detection device 10) for detecting the permeability of an atomizing component is shown in one embodiment of this application. An embodiment of this application provides a detection device 10, including a clamp 100, a pressure detection module 200, a suction module 300, and a calculation module (not shown in the figure). The clamp 100 has a liquid flow channel 101 extending through its opposite ends. The opposite ends of the liquid flow channel 101 have an inlet 102 and an outlet 103, respectively. An atomizing component 70 is installed in the liquid flow channel 101 to be fixed in the clamp 100. The liquid flow channel 101 allows fluid to pass through, so that the fluid can permeate from the side of the atomizing component 70 facing the inlet 102 to the side facing the outlet 103. The pressure detection module 200 has a first detection end 201 extending into the liquid flow channel 101 and near the inlet 102 and a second detection end 202 extending into the liquid flow channel 101 and near the outlet 103. The suction module 300 is in fluid communication with the inlet 102. The suction module 300 is used to inject fluid into the liquid flow channel 101, and the pressure detection module 200 is used to detect fluid when the atomizing component 70 is contained in the liquid flow channel 101 and the fluid is injected by the suction module 300 at a flow rate Q per unit time. v When the liquid is injected into the liquid flow channel 101, the pressure P1 on the side of the atomizing component 70 facing the liquid inlet 102 and the pressure P2 on the side facing the liquid outlet 103 are detected; the calculation module is communicatively connected to the pressure detection module 200 and the suction module 300, and is used to obtain the parameters of P1 and P2, and calculate the difference between P1 and P2 ΔP and Q. v The inherent relationship between the two and the permeability is used to calculate the permeability of the atomizing component 70.

[0034] The inherent relationship mentioned here refers to Darcy's law, a classic law describing fluid flow in porous media. This law states that, under conditions of constant permeability, unidirectional incompressible fluid, and adherence to Newtonian fluid dynamics, the relationship between the fluid flow rate through a porous medium per unit time and the permeability is linear. This law can be expressed by the following formula:

[0035] Q v =KAΔP / μL

[0036] Among them, Q v Q represents the fluid flow rate through the porous medium per unit time, K represents the permeability, A represents the cross-sectional area of ​​the fluid flow, ΔP represents the pressure change in the direction of fluid flow, μ represents the viscosity of the fluid, and L represents the thickness of the porous medium in the direction of air permeability. Among the above parameters, Q... v ΔP, A, μ and L are all known parameters or parameters that can be measured. Therefore, the permeability K can be obtained by following the above formula, thus enabling convenient and quick determination of the ability of the atomizing component 70 to allow fluid to pass through its internal pores or channels.

[0037] Understandably, during testing, the permeability of the atomizing assembly 70, including the liquid guiding component and the heating component, can be tested as a whole, or the permeability of the liquid guiding component in the atomizing assembly 70 can be tested separately, depending on the specific requirements.

[0038] It is also understandable that in the atomizing component 70 being tested, the liquid guiding component can be a ceramic liquid guiding component or a fiber cotton liquid guiding component, and no limitation is made here.

[0039] See Figure 2 , Figure 2 A cross-sectional view of the internal structure of the clamp 100 in an embodiment of this application is shown. In this embodiment, the clamp 100 has a receiving groove 104 for mounting the atomizing component 70. The outline dimensions of the receiving groove 104 are consistent with those of the atomizing component 70, so that the atomizing component 70 can be firmly fixed in the receiving groove 104. The liquid flow channel 101 passes through the receiving groove 104 and is connected to the receiving groove 104, so that after the fluid flows from the liquid inlet 102 into the liquid flow channel 101, it can permeate from the side of the atomizing component 70 facing the liquid inlet 102 to the side of the atomizing component 70 facing the liquid outlet 103, and then flow out from the liquid outlet 103.

[0040] Furthermore, the clamp 100 has a first threading hole 105 on one side of the liquid inlet 102 that connects to the liquid flow channel 101, and a second threading hole 106 on one side of the liquid outlet 103; the first threading hole 105 is used for the first detection end 201 to pass through, and the second threading hole 106 is used for the second detection end 202 to pass through, so that the first detection end 201 and the second detection end 202 can be easily extended from the outside of the liquid flow channel 101 into the liquid flow channel 101.

[0041] In some alternative embodiments, the pressure detection module 200 may be disposed outside the clamp 100 or inside the clamp 100, for example in... Figure 2 In this embodiment, to save space occupied by the detection device 10, the pressure detection module 200 is disposed within the fixture 100. Specifically, the first detection end 201 includes a first pressure sensor 210, and the second detection end 202 includes a second pressure sensor 220. Correspondingly, the fixture 100 has a first mounting groove 107 and a second mounting groove 108. The first pressure sensor 210 is installed in the first mounting groove 107 and is used to detect the pressure P1 of the atomizing component 70 near the liquid inlet 102 through the first detection end 201. The second pressure sensor 220 is installed in the second mounting groove 108 and is used to detect the pressure P2 of the atomizing component 70 near the liquid outlet 103 through the second detection end 202.

[0042] It is understandable that the pressure detection module 200 can be a single integrated structure located outside the fixture 100 or in a mounting slot within the fixture 100; no limitation is made here.

[0043] Furthermore, to facilitate the installation of the atomizing component 70 within the clamp 100, such as... Figure 2 and Figure 3 As shown, the clamp 100 includes a front cover 110 and a rear cover 120 that are detachably connected to each other. The liquid flow channel 101 includes a first sub-channel 101a and a second sub-channel 101b that are interconnected. The first sub-channel 101a passes through the front cover 110, and the liquid inlet 102 is located on the side of the front cover 110 away from the rear cover 120. The second sub-channel 101b passes through the rear cover 120, and the liquid outlet 103 is located on the side of the rear cover 120 away from the front cover 110. A first mounting groove 107 and a first wire hole 105 are located on the front cover 110, and a second mounting groove 108 and a second wire hole 106 are located on the rear cover 120. When a receiving groove 104 is provided in the clamp 100, at least a portion of the receiving groove 104 is located on the side of the front cover 110 facing the rear cover 120, or at least a portion of the receiving groove 104 is located on the side of the rear cover 120 facing the front cover 110. It can be understood that the receiving groove 104 can be entirely opened on the side of the front cover 110 facing the rear cover 120, or entirely opened on the side of the rear cover 120 facing the front cover 110, or partly opened on the side of the front cover 110 facing the rear cover 120 and the other part opened on the side of the rear cover 120 facing the front cover 110.

[0044] Thus, when installing the atomizing component 70, simply place a portion of the atomizing component 70 in the receiving groove 104, and then fasten the rear cover 120 and the front cover 110 together to easily install the atomizing component 70 in the clamp 100.

[0045] It should be noted that the front cover 110 and the rear cover 120 can be connected in various ways, such as detachably connected by fasteners like screws and bolts, or magnetically connected. Figure 3 As shown in the embodiment, the front cover 110 and the rear cover 120 each include a body 111 and a flange 112 surrounding the body 111. The liquid inlet 102 and the first sub-channel 101a are opened on the body 111 of the front cover 110, and the liquid outlet 103 and the second sub-channel 101b are opened on the body 111 of the rear cover 120. The front cover 110 and the rear cover 120 are each provided with a plurality of screw holes 113, and screws are inserted through the screw holes 113 to connect the front cover 110 and the rear cover 120 to each other.

[0046] Regarding the structure of the suction module 300, the suction module 300 includes a stepper motor and a syringe. The syringe contains fluid and includes an open end and a propulsion end. The stepper motor is connected to the propulsion end, and the open end is connected to the fluid inlet. Furthermore, the suction module also includes a control component, which is communicatively connected to the stepper motor and is used to control the propulsion speed of the stepper motor.

[0047] Thus, it's easy to understand that the syringe functions similarly to a needle, with a stepper motor providing power. Under the power of the stepper motor and the control of the stepper motor by the control components, the fluid inside the syringe can flow at a certain rate Q per unit time. v It is injected into the fluid channel 101.

[0048] Please continue reading. Figure 1 , Figure 1 In one embodiment, the detection device 10 further includes a fluid collector 400 connected to the outlet 103 for collecting the fluid that has permeated through the atomizing component 70, so that the fluid can be reused and the waste of fluid and pollution to the environment can be avoided.

[0049] Furthermore, the detection device 10 also includes a first fluid pipe 500 and a second fluid pipe 600. One end of the first fluid pipe 500 is inserted into the inlet 102, and the suction module 300 is connected to the end of the first fluid pipe 500 away from the inlet 102, so as to be connected to the inlet 102 through the first fluid pipe 500. One end of the second fluid pipe 600 is inserted into the outlet 103, and the fluid collector 400 is connected to the end of the second fluid pipe 600 away from the outlet 103, so as to be connected to the outlet 103 through the second fluid pipe 600.

[0050] By setting up a first fluid pipe 500 and a second fluid pipe 600, when fluid is injected into the liquid flow channel 101 from the inlet 102 using the suction module 300, the fluid can flow along the first fluid pipe 500 without leaking out before entering the liquid flow channel 101; and after the fluid flows out from the outlet 103, it will also flow along the second fluid pipe 600 into the fluid collector 400 without leaking out before entering the fluid collector 400.

[0051] It should be noted that only the first fluid pipe 500 or only the second fluid pipe 600 can be provided, and the suction module 300 and the fluid collector 400 can be selectively provided as needed. There is no limitation here, but it is obviously the best embodiment to provide the suction device, the fluid collector 400, the first fluid pipe 500 and the second fluid pipe 600.

[0052] When using the testing device 10 provided in this application to test the permeability of the atomizing component 70, the installation and testing steps are as follows:

[0053] First, separate the front cover 110 and the rear cover 120 of the fixture 100, install the first part of the atomizing component 70 to be tested in the receiving groove 104, and then close the front cover 110 and the rear cover 120. After closing, fix the front cover 110 and the rear cover 120 with fasteners to complete the fixation of the atomizing component 70 in the fixture 100.

[0054] The second step is to connect the suction module 300 to the inlet 102 through the first fluid pipe 500, and to connect the fluid collector 400 to the outlet 103 through the second fluid pipe 600.

[0055] The third step is to inject fluid into the liquid flow channel through the first fluid pipe 500 until the gas in the liquid flow channel is expelled, so that the entire liquid flow channel is filled with fluid.

[0056] The fourth step involves the suction module 300 operating, controlling the suction module 300 to inject fluid in a quantitative manner, and monitoring the pressure value P1 detected by the first sensor and the pressure value P2 detected by the second sensor.

[0057] Fifth, once the monitored pressure value stabilizes, read and record the values ​​from the first and second sensors, and record the injection flow rate Q per unit time at this point. v .

[0058] Step 6: Change the injection flow rate Q per unit time. v Repeat the above steps.

[0059] Step 7: Calculate the penetration rate.

[0060] It should be noted that different types of fluids can be replaced to test the penetration rate of the atomizing component 70 to different types of fluids, which helps in the development and design of electronic atomizers suitable for different fluids.

[0061] Therefore, the detection device 10 for detecting the permeability of the atomizing component 70 provided in this application can conveniently and quickly obtain the ability of the atomizing component 70 to allow fluid to pass through its internal pores or channels. This is of great significance for obtaining various parameters such as the liquid supply performance and liquid retention performance of the atomizing component 70, as well as for the design of electronic atomizers and the solution of problems such as preventing dry burning and preventing oil leakage.

[0062] 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.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A detection device for detecting the permeability of an atomizing component, characterized in that, include: The clamp has a liquid flow channel extending through its two opposite ends, with the two opposite ends of the liquid flow channel being an inlet and an outlet, respectively, and the atomizing component is installed inside the liquid flow channel; A suction module, wherein the suction module is in fluid communication with the liquid inlet; The pressure detection module includes a first detection end and a second detection end. The first detection end extends into the liquid flow channel and is located on the side of the atomizing component facing the liquid inlet. The second detection end extends into the liquid flow channel and is located on the side of the atomizing component facing the liquid outlet. The calculation module is communicatively connected to the suction module and the pressure detection module to obtain parameters and calculate the permeability of the atomizing component.

2. The detection device according to claim 1, characterized in that, The clamp has a first threaded hole on one side of the liquid inlet that connects to the liquid flow channel, and a second threaded hole on one side of the liquid outlet. The first threaded hole is for the first detection end to pass through, and the second threaded hole is for the second detection end to pass through.

3. The detection device according to claim 2, characterized in that, The first detection end includes a first pressure sensor, and the second detection end includes a second pressure sensor.

4. The detection device according to claim 3, characterized in that, The fixture has a first mounting slot that connects to the first wire hole and a second mounting slot that connects to the second wire hole. The first pressure sensor is installed in the first mounting slot and the second pressure sensor is installed in the second mounting slot.

5. The detection device according to claim 1, characterized in that, The fixture has a receiving groove for installing the atomizing component, and the liquid flow channel passes through and is connected to the receiving groove.

6. The detection device according to claim 1, characterized in that, The clamp includes a front cover and a rear cover that are detachably connected to each other. The liquid flow channel includes a first sub-channel and a second sub-channel that are interconnected. The first sub-channel passes through the front cover. The liquid inlet is located on the side of the front cover away from the rear cover. The second sub-channel passes through the rear cover. The liquid outlet is located on the side of the rear cover away from the front cover.

7. The detection device according to claim 6, characterized in that, The clamp has a receiving groove for installing the atomizing component. At least a portion of the receiving groove is located on the side of the front cover facing the rear cover, or at least a portion of the receiving groove is located on the side of the rear cover facing the front cover.

8. The detection device according to claim 1, characterized in that, The suction module includes a stepper motor and a syringe. The syringe contains fluid and includes an open end and a propulsion end. The stepper motor is connected to the propulsion end, and the open end is connected to the inlet.

9. The detection device according to claim 8, characterized in that, The suction module also includes a control component for controlling the propulsion speed of the stepper motor.

10. The detection device according to claim 1, characterized in that, The outlet is connected to a fluid collector, which is used to collect the fluid that has permeated through the atomizing component from the outlet.

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