A protective mesh cover and a portable electro-vaporization device

Abstract

This invention relates to a protective mesh cover and a portable electro-evaporation device, belonging to the technical field of liquid evaporation equipment. The protective mesh cover has an evaporation chamber formed by the mesh surface, used in high-temperature liquid evaporation equipment, with a mesh opening ratio of not less than 60% in the evaporation area; wherein, the evaporation area is the effective evaporation surface area when the protective mesh cover is applied to the product; wherein, at least 30% of the mesh openings in the evaporation area have a cone angle pointing approximately in the same direction at their edges. The cone angle design allows droplets to be effectively guided to flow through the edges when they encounter the mesh openings.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of protective mesh covers, and particularly relates to a protective mesh cover and a portable electric evaporation device. BACKGROUND

[0002] In a liquid evaporation device, the liquid is converted into a gaseous medium due to its evaporation characteristics. When these gases enter the evaporation area of the device, they exchange heat with the ambient temperature or a cooled surface, the gases gradually cool down and condense, thus changing into a liquid substance. The condensed droplets can adhere to the surface of structures such as protective mesh covers, causing a series of potential problems.

[0003] With the accumulation of condensed droplets, a liquid film or accumulation of droplets can appear on the surface of the protective mesh cover. The accumulation of condensed liquid hinders the normal function of the mesh cover, especially in application scenarios that require high permeability. If there are too many condensed droplets, on the one hand, the surface of the protective mesh cover will be greasy, and on the other hand, the airflow guiding ability of the mesh cover will be affected, reducing the efficiency of gas passing through the mesh cover, and even causing the gas flow to be blocked or turbulent. SUMMARY

[0004] To solve the above-mentioned problems of the prior art, the present application provides a protective mesh cover and a portable electric evaporation device.

[0005] To achieve the above-mentioned purposes, the technical solution adopted by the present application is as follows:

[0006] A protective mesh cover is provided, which has an evaporation cavity formed by a mesh surface, and is used in a liquid high-temperature evaporation device, wherein the mesh opening rate of the evaporation area is not less than 60%.

[0007] The evaporation area is the effective evaporation surface area of the protective mesh cover when it is applied to the liquid high-temperature evaporation device.

[0008] The mesh holes at the edges of not less than 30% of the area of the evaporation area have a taper angle pointing in substantially the same direction.

[0009] Preferably, the taper angle is 20-80°.

[0010] Preferably, the taper angle is 30-50°.

[0011] Preferably, the mesh holes with the taper angle are rhombic mesh holes.

[0012] Preferably, the mesh opening rate of the evaporation area is 70-95%.

[0013] Preferably, it has:

[0014] a liquid storage area;

[0015] The liquid storage area is a solid surface structure suitable for storing small droplets.

[0016] Preferably, having:

[0017] A thin-walled bridge is arranged in the volatilization area.

[0018] Wherein, the thin-walled bridge passes through a plurality of mesh holes in the same column or row.

[0019] Preferably, the thin-walled bridge is a plurality, and arranged in parallel with each other.

[0020] Preferably, the protective screen includes a connecting area.

[0021] The connecting area has a positioning groove.

[0022] Preferably, the connecting area has a elastic snap structure.

[0023] The present application also provides a portable electric volatilization device, comprising:

[0024] An electric heating element configured to connect a power supply element to provide heat energy.

[0025] A volatilization core rod.

[0026] The protective screen as claimed in any one of the above technical solutions.

[0027] Wherein, the electric heating element and the volatilization core rod are both located in the volatilization area of the protective screen.

[0028] Preferably, comprising:

[0029] A device housing.

[0030] The device housing has a first housing and a second housing that can be separated and docked.

[0031] The volatilization area of the protective screen is hidden when the first housing and the second housing are docked.

[0032] The volatilization area of the protective screen is exposed to the external environment when the first housing and the second housing are separated.

[0033] The present application provides a protective screen, and the beneficial effects of the present application are embodied in:

[0034] On the one hand, by designing the mesh opening rate of the protective screen to be not less than 60%, the gas permeability can be effectively improved, and it is ensured that the volatilized gas can smoothly pass through the screen. This helps to reduce the resistance of gas flow, so that the volatilized substances can be quickly and uniformly diffused to the external environment. The high opening rate of the mesh provides more space for the condensed medium droplets, thereby reducing the accumulation of droplets on the surface of the screen.

[0035] On the other hand, the mesh edges have a certain taper angle (generally pointing in the same direction), which is to solve the problem of droplet accumulation on the surface of the mesh after condensation. The design of the taper angle makes the droplets effectively guided to flow when they hit the edge of the mesh. Due to the existence of the taper angle, the droplets after condensation will not directly adhere to the edge of the mesh, but will be guided in a certain direction, reducing the contact area between the droplets and the surface of the mesh, thereby reducing the adhesion of the droplets. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 A perspective view of the protective mesh cover proposed by the present application;

[0037] Figure 2 A front view of the protective mesh cover proposed by the present application;

[0038] Figure 3 A partial enlarged view of the structure shown in area A in the middle; Figure 2

[0039] A partial enlarged view of the structure shown in area A in the middle; Figure 4 Figure 2 A partial enlarged view of the structure shown in area A in the middle;

[0040] Figure 5 An assembly diagram of the protective mesh cover proposed by the present application and the volatile container;

[0041] Figure 6 A perspective view of the portable electric volatile device proposed by the present application;

[0042] Figure 7 A perspective view of the portable electric volatile device proposed by the present application;

[0043] Figure 8 An assembly diagram of the portable electric volatile device proposed by the present application and the protective mesh cover;

[0044] Figure 9 A schematic diagram of S1 and S2 of the protective mesh cover proposed by the present application.

[0045] Explanation of reference signs:

[0046] 1. Protective mesh cover; 101. Volatile area; 102. Mesh hole; 103. Taper angle; 104. Liquid storage area; 105. Thin-walled bridge; 106. Connection area; 1061. Positioning groove; 1062. Guide groove; 1063. First deformation block; 1064. Second deformation block; 2. Portable electric volatile device; 201. Electric heating element; 202. Volatile core rod; 203. Volatile container. DETAILED DESCRIPTION

[0047] ​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0048] Referring to FIG. 1, Figures 1-9 As shown in FIG. 1, the specific embodiments provided by the present application are as follows:

[0049] Referring to FIG. 1, Figure 1 As shown in FIG. 1, the protective mesh cover 1 includes a first surface and a second surface. The first surface is an inner wall surface, and the second surface is an outer wall surface. The first surface encloses a volatilization cavity, which is used to physically isolate a heating element and a volatilization element of a liquid volatilization device. The second surface is an end surface facing an external environment.

[0050] The protective mesh cover 1 has a volatilization area 101 located on the circumferential wall surface of the mesh cover. Specifically, the volatilization area 101 includes part or all of the circumferential wall surface of the volatilization cavity. When the protective mesh cover 1 is applied to a product, volatilized gas formed by volatilized liquid will diffuse from the volatilization cavity to the external environment. The circumferential wall surface of the volatilization area 101 is provided with mesh holes 102, which form a mesh surface structure to achieve the diffusion and isolation of volatilized gas.

[0051] It should be understood that the volatilization cavity is formed by a plurality of mesh holes 102 penetrating through the circumferential wall surface of the protective mesh cover 1, forming a mesh surface enclosing structure, to ensure the diffusion and flow of volatilized gas in the mesh cover.

[0052] Referring to FIG. 1, Figure 9 As shown in FIG. 1, the opening rate of the mesh holes 102 of the volatilization area 101 is not less than 60%. The opening rate refers to the ratio of the opening area S2 of a single mesh hole 102 to the overall area S1 of the mesh hole 102 (including the connecting part area around the hole), which is usually expressed in percentage. Specifically, the higher the opening rate of the mesh hole 102, the greater the proportion of the area occupied by the mesh hole 102, thereby increasing the permeability and volatilization efficiency of the gas.

[0053] On the other hand, the edges of not less than 30% of the mesh holes 102 in the volatilization area 101 have a taper angle 103 pointing in substantially the same direction. The taper angle 103 refers to the included angle between the two edges of the mesh hole 102, and the included angle is an acute angle, that is, the edges of the mesh hole 102 have a certain sharpness.

[0054] The purpose of this structure is to, on the one hand, by designing the mesh opening rate of the protective mesh cover 1 not less than 60%, the permeability of the gas can be effectively improved, to ensure that the volatile gas can smoothly pass through the mesh cover. This helps to reduce the resistance of gas flow, so that the volatile substances can be quickly and uniformly diffused to the external environment. The high opening rate of the mesh 102 allows more gas to pass through, thereby reducing the probability of condensate droplets forming on the surface of the mesh cover. This is because the larger mesh 102 opening allows the gas flow to flow more smoothly, reducing the time for gas to stay near the mesh 102, thereby reducing the opportunity for gas cooling and condensation, reducing the probability of droplet adhesion. Therefore, the optimized mesh 102 opening rate plays an effective guiding role in improving the gas flow, reducing the adhesion of condensate droplets to the mesh cover;

[0055] On the other hand, the edge of the mesh 102 has a certain taper angle 103 (usually pointing in the same direction), which is designed to solve the problem of liquid droplet accumulation on the surface of the mesh cover after condensation. The design of the taper angle 103 makes the liquid droplets effectively guided to flow when they encounter the edge of the mesh 102. Due to the presence of the taper angle 103, the liquid droplets after condensation will not directly adhere to the edge of the mesh 102, but will be guided in a certain direction, thereby reducing the adhesion of the liquid droplets. The taper angle 103 changes the geometry of the edge of the mesh 102, optimizing the flow path of the condensate droplets, allowing the liquid droplets to flow smoothly along the mesh 102 without staying on the surface of the mesh cover, thereby reducing the accumulation and adhesion of the liquid droplets.

[0056] In a specific embodiment, the taper angle 103 is 20-80°.

[0057] At 20°, the sharpness of the edge of the mesh 102 is higher, and the liquid droplets after condensation will be more easily discharged from the edge of the mesh 102, reducing the residence time on the surface of the mesh cover. Therefore, the discharge effect of the liquid droplets is relatively rapid, which helps to avoid the accumulation of liquid droplets.

[0058] At 80°, the inclination angle of the edge of the mesh 102 is larger, and the sharpness is lower, the guiding effect of the liquid droplets is more moderate, and the flow speed of the liquid droplets is slower. At this time, the liquid droplets after condensation need a longer time to completely discharge from the surface of the mesh cover. Compared with a smaller taper angle 103 (such as 20°), a larger taper angle 103 makes the liquid droplets flow more gently, the interaction between the liquid droplets and the surface of the mesh cover is weaker, so that the liquid droplets are less likely to accumulate along the edge of the hole, but more likely to flow or drop in the vertical direction, thereby reducing the probability of liquid droplet retention.

[0059] In some occasions where stable airflow or uniform gas flow is required, the cone angle 103 of 80° is designed with obvious advantages. The larger cone angle 103 makes the liquid droplet flow more gentle, which can reduce the fluctuation and disturbance of the airflow, thereby maintaining the permeability and volatility of the gas. For dense or low-volatility substances, the larger contact angle makes the liquid droplet flow more gentle and controllable, reducing the reverse flow of the liquid droplet, avoiding the accumulation and backflow of the condensed liquid droplet on the surface of the mesh cover, thereby improving the processing effect of the condensed substance.

[0060] Preferably, the cone angle 103 is 30°, 40°, 50°, 60° or 70°.

[0061] Preferably, the cone angle 103 is 35° or 45°.

[0062] In a specific embodiment, the mesh 102 of the volatilization area 101 has an opening rate of 70-95%. The opening rate of 70-95% of the mesh 102 ensures that the gas in the volatilization area 101 can quickly pass through the mesh cover, reducing the resistance of the airflow, so that the volatilized substance can be quickly and uniformly diffused to the external environment. For the protective mesh cover 1, this opening rate range can effectively meet the needs of efficient gas transmission and rapid volatilization. That is, this high opening rate enables the volatilized substance to be more effectively discharged, improving the volatilization efficiency, especially in scenarios where rapid volatilization or dense volatilized gas is required, ensuring that the volatilized gas can flow unhindered.

[0063] Reference Figures 2-3 As shown, the mesh 102 with the cone angle 103 is a rhombic mesh 102. The use of the rhombic mesh 102 helps to improve the geometric shape of the mesh 102, making the cone angle 103 of the edge of the mesh 102 more directional and sharp. The four sides of the rhombic mesh 102 are relatively symmetrical, and compared with the circular mesh 102, the adjacent edges of the rhombic mesh 102 can be shared, thereby reducing the solid area of the connection area. This structure helps to improve the directionality of the airflow and enhance the smoothness of the airflow.

[0064] Each edge of the rhombic mesh 102 forms a relatively clear direction, and when combined with the cone angle 103 design, it can reduce the retention of liquid droplets while maintaining high permeability. When the liquid droplets of the condensed gas contact the edge of the mesh 102, the geometric shape of the rhombus and the sharp edge of the mesh 102 can more effectively guide the flow of the liquid droplets, avoid the accumulation of the liquid droplets near the mesh 102, and improve the discharge efficiency of the liquid droplets.

[0065] Alternatively, the mesh 102 with the cone angle 103 is a regular quadrilateral mesh 102, such as a square or a rectangle.

[0066] Reference Figure 4As shown, the guard net cover 1 has a liquid storage area 104. The liquid storage area 104 is formed by the connection of the adjacent conical angle 103 of the mesh 102, which is generally rectangular in shape. In the vertical direction, the two edges of the liquid storage area 104 correspond to the corners of the conical angle 103. Therefore, the presence of the liquid storage area 104 makes the corners of the conical angle 103 part of the rectangle, rather than forming a sharper angle, so that when the liquid flows to this position along the edge of the conical angle 103, it will be temporarily blocked by the short edge of the rectangle, and then slowly slide down to the liquid storage area 104.

[0067] The liquid storage area 104 is an important part of the guard net cover 1, and its main purpose is to collect and store the condensed or residual liquid droplets during the volatilization process. After condensation, the liquid may accumulate on the surface of the mesh 102, especially in high-temperature or high-volatility environments, and the condensed liquid droplets may not be smoothly guided out due to unstable air flow or temperature changes. However, due to the guiding effect of the conical angle 103 of the mesh 102, small liquid droplets slide along the edge of the hole and gather, and finally slide down to the liquid storage area 104. The arrangement of the liquid storage area 104 can effectively collect these liquid droplets and prevent them from accumulating on the mesh 102, thereby ensuring the normal operation of the equipment.

[0068] In one embodiment, the liquid storage area 104 adopts a solid surface structure, which effectively isolates the surrounding environment and prevents the reflow or backflow of condensed liquid droplets. This structure ensures that the liquid droplets can stay in it until they are discharged or evaporated, without negatively affecting the surrounding air flow and other volatilization processes. The design of the liquid storage area 104 takes into account the storage needs of small liquid droplets during condensation. These small liquid droplets are often difficult to be guided by the conical angle 103, and the liquid storage area 104 can provide a temporary storage space for them to avoid disordered flow of small liquid droplets affecting user experience.

[0069] Reference Figure 4 As shown, the guard net cover 1 has a thin-walled bridge 105. It should be understood that in the vertical direction, the thin-walled bridge 105 is connected between adjacent liquid storage areas 104. That is, the liquid droplets in the liquid storage area 104 can further slide down to the next liquid storage area 104 through the thin-walled bridge 105, and then finally slide down to the bottom of the volatilization area and be collected. Of course, part of the small liquid droplets will also adhere to the liquid storage area 104 and the thin-walled bridge 105, and continue to volatilize or evaporate under the action of hot air.

[0070] When placed horizontally, the thin-walled bridge 105 can still effectively control the flow of liquid droplets and prevent them from locally accumulating on the surface of the mesh cover and flowing in a certain direction. Specifically, the liquid droplets sliding along the circumferential wall of the mesh cover will be divided into small liquid droplets by the thin-walled bridge 105, which on the one hand helps to continue to volatilize or evaporate under the action of hot air, and on the other hand reduces the accumulation of small liquid droplets into large liquid droplets, avoiding direct dripping of large liquid droplets.

[0071] In one embodiment, the thin-wall bridges 105 are multiple and arranged in parallel with each other.

[0072] The thin-wall bridges 105 are understood to be thin-wall plate-like members of an elongated structure, arranged in the evaporation area 101 of the protective screen 1, for connecting and supporting multiple mesh holes 102 and liquid storage areas 104 in the same column or row. The thin-wall bridges 105 have the characteristics of thinness and strength, and can provide the necessary support and dispersion without significantly increasing the overall weight or volume of the screen.

[0073] Reference Figure 5 As shown, the protective screen 1 has a connection area 106. The protective screen 1 includes the connection area 106. The connection area 106 is located below the evaporation area 101 and extends in the vertical direction. The purpose of the connection area 106 is to connect the evaporation container 203, ensure that the evaporation container 203 is stably installed in the device, and facilitate user operation. Specifically, the evaporation container 203 can be pushed into the space enclosed by the connection area 106 in a sliding manner, and can be stopped after reaching the specified position to prevent displacement or falling during use.

[0074] In this embodiment, the bottom side wall surface of the evaporation container 203 is provided with one or more clamping blocks, and the connection area 106 is provided with a positioning groove 1061 at the corresponding position. During installation of the evaporation container 203, the user only needs to slide the evaporation container 203 into the connection area 106 in the vertical direction, and the clamping blocks will cooperate and engage with the positioning groove 1061. When the evaporation container 203 slides to the specified depth, the engagement of the clamping blocks with the positioning groove 1061 effectively prevents the evaporation container 203 from continuing to penetrate, thereby ensuring that the evaporation container 203 is accurately installed to the correct position of the connection area 106.

[0075] Specifically, the shape and size of the clamping blocks are designed to precisely match the positioning groove 1061, so that the evaporation container 203 can be easily slid in and aligned during installation. When the evaporation container 203 reaches the installation depth, the clamping blocks are blocked and fixed, not only preventing the evaporation container 203 from moving due to vibration or external force, but also ensuring that its position does not deviate.

[0076] The distance between the bottom of the evaporation container 203 and the bottom end of the connection area 106 is set to be between 3mm and 6mm. This distance is set based on safety considerations to prevent children from easily pulling out the evaporation container 203, in order to protect the safety of children. With this design, even if a child misoperates, it is not easy to directly touch the internal liquid of the evaporation container 203, thereby avoiding the risk of accidental contact with the evaporation liquid.

[0077] Specifically, the distance is set between 3mm and 6mm, which ensures the stability of the volatile container 203 during installation. Within this range, it is difficult for users (especially children) to easily pull out the volatile container 203 by simply pulling or touching, thereby increasing safety. This design not only optimizes the performance of the device, but also provides additional child protection function, effectively reducing the safety hazards caused by misoperation of children, and improving the family friendliness and safety of the product.

[0078] A guide groove 1062 is provided in the connection area 106. Correspondingly, when the protective cover 1 is assembled to the portable electric volatile device 2, in order to achieve more precise state control, a guide block is provided on the device housing of the portable electric volatile device 2, and the device housing and the connection area 106 of the protective cover 1 are slidingly connected. Generally, the device housing includes a first housing and a second housing which are separable and dockable. The second housing is internally provided with a guide block and forms a sliding connection with the connection area 106. The guide groove 1062 is provided as a broken line in the axial direction of the protective cover 1. The design of the broken line plays an important role: when the guide block slides along the broken line path, the change of the path will cause the guide block to be blocked, indicating that the second housing and the first housing are in a first separated state. In this state, the volatile area 101 is completely exposed, allowing the volatile liquid to enter the working state.

[0079] When the user rotates the second housing by a certain angle, the guide block will move along the changing path of the broken line path and gradually reach the end point. At this time, the user can continue to pull the second housing in the circumferential direction to completely separate it from the connection area 106, facilitating further operation or maintenance of the device.

[0080] In a specific embodiment, the connection area 106 of the protective cover 1 is further provided with a first deformation block 1063. The purpose of the first deformation block 1063 is to ensure smooth transition of the second housing during relative sliding and accurate docking at the clamping position through a specific deformation mechanism, while avoiding the phenomenon of jamming caused by excessive clamping force.

[0081] Specifically, the first deformation block 1063 is provided in the connection area 106 and is designed to deform under the extrusion force during the sliding of the second housing. Specifically, the first deformation block 1063 is stamped into the protective cover 1 and has a slight protrusion towards the second housing. Correspondingly, the second housing is internally provided with a matching groove, and the slight protrusion of the first deformation block 1063 and the groove can be clamped. When the second housing slides along the guide groove 1062, the first deformation block 1063 will deform inwardly due to external pressure, thereby allowing the second housing to continue to slide and pass through the first deformation block 1063. At this time, the first deformation block 1063 is temporarily in a deformed state to create space for the subsequent clamping process.

[0082] When the second shell continues to slide, and the clamping groove inside it corresponds to the position of the first deformation block 1063, the first deformation block 1063 will restore its original shape after the external force is removed, and complete the clamping in the clamping groove (provided inside the second shell).

[0083] In order to ensure the smoothness and stability during clamping, the design of the first deformation block 1063 ensures that the clamping force will not be too large. Avoiding the complete jamming situation caused by too large clamping force, that is, preventing the first deformation block 1063 from being clamped too tightly with the clamping groove, affecting the subsequent disassembly or operation.

[0084] The second deformation block 1064 is included. The second deformation block 1064 is used for clamping and fixing the volatile container 203. Specifically, the second deformation block 1064 is punched to form the protective mesh cover 1, and has a small protrusion towards the volatile container 203. Correspondingly, the outer wall surface of the volatile container 203 is provided with a matched groove, and the small protrusion of the second deformation block 1064 and the groove can be clamped for clamping and fixing the volatile container 203.

[0085] The connection area 106 is provided with an observation slot, and the second shell is provided with an observation window. The purpose is to enable the user to conveniently understand the remaining amount of volatile liquid in the volatile container 203, so as to effectively master the working state of the equipment.

[0086] Reference Figures 6-8 As shown, a portable electric volatile device 2 is provided. The portable electric volatile device 2 can be applied to mosquito-repelling, insect-repelling or fragrance devices.

[0087] The portable electric volatile device 2 includes:

[0088] The electric heating element 201 is configured to connect a power supply element to provide heat energy;

[0089] The volatile wick 202. The main function of the volatile wick 202 is to be inserted into the volatile container 203 containing volatile liquid, and to cause capillary phenomenon of the volatile liquid.

[0090] The protective mesh cover 1 as described in the above embodiment example, the volatile area 101 formed by the protective mesh cover 1 is used to enclose the volatile wick 202.

[0091] The electric heating element 201 is used to provide heat energy to the volatile wick 202.

[0092] The electric heating element 201 and the volatile wick 202 are both located in the volatile area 101 of the protective mesh cover 1, and this configuration ensures that the entire heating and volatile process is protected by the protective mesh cover 1. The protective mesh cover 1 effectively isolates the high temperature generated by the electric heating element 201 and the volatile wick 202, preventing the high temperature gas from directly affecting the external environment of the equipment or the user.

[0093] In the description of the embodiments of the present application, it needs to be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inner", "outer", "inner side", "outer side" and the like indicate the orientation or positional relationship.

[0094] In the description of the embodiments of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "assembling" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0095] In the description of the embodiments of the present application, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0096] In the description of the embodiments of the present application, it needs to be understood that "-" and "~" represent the range between two values, and the range includes the endpoints. For example: "A-B" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0097] In the description of the embodiments of the present application, the term "and / or" herein is only a description of the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents that the front and rear associated objects are in an "or" relationship.

[0098] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and deformations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A protective screen having a volatile chamber defined by a screen surface for use in a liquid high temperature volatile apparatus, characterised in that , The mesh opening rate of the volatilization area is not less than 60%, and the opening rate refers to the ratio of the opening area S2 of a single mesh to the overall area S1 of the mesh, wherein the volatilization area is the effective volatilization area of the protective mesh cover when the protective mesh cover is applied to a liquid high-temperature volatilization device. The mesh edges of not less than 30% of the volatilization area have a taper angle pointing in substantially the same direction.

2. The protective mesh cover according to claim 1, wherein The taper angle is 20-80°.

3. The protective mesh cover according to claim 2, wherein The taper angle is 30-50°.

4. The protective mesh cover according to any one of claims 1-3, wherein The mesh with the taper angle is a rhombic mesh.

5. The protective mesh cover according to any one of claims 1-3, wherein The mesh opening rate of the volatilization area is 70-95%.

6. A protective screen according to any one of claims 1 to 3, wherein, has: a liquid storage area; The liquid storage area is a solid surface structure and is suitable for storing small droplets.

7. A protective screen according to any one of claims 1 to 3, wherein has: a thin-walled bridge arranged in the volatilization area; The thin-walled bridge passes through a plurality of meshes in the same column or row.

8. The protective mesh cover according to claim 7, wherein The protective mesh cover comprises a connecting area; The connecting area has a positioning groove.

9. The protective mesh cover according to claim 8, wherein The connecting area has an elastic clamping structure.

10. A portable electro-voltaic device, comprising: includes: an electric heating element configured to be connected to a power supply element to provide heat energy; a volatilization rod; The protective mesh cover according to any one of claims 1-9; The electric heating element and the volatilization rod are both located in the volatilization area of the protective mesh cover.

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