High-capacity disposable electronic cigarette
By using high-density oil storage cotton in large-capacity disposable electronic cigarettes and designing air-replenishing gaps and second air-replenishing pores, the problem of oil leakage and poor circulation of e-cigarettes is solved, and the user experience is improved.
Patent Information
- Application Number
- CN202420339234.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-02-23
AI Technical Summary
Large-capacity disposable electronic cigarettes are prone to oil leakage after increasing the amount of oil injected. In order to prevent leakage, the use of high-density oil storage cotton leads to poor circulation of e-liquid and poor user experience.
A large-capacity disposable electronic cigarette is designed, using high-density oil storage cotton, and an air-replenishing gap is reserved between the oil storage cotton and the upper seal. A second air-replenishing hole is provided in the oil storage cotton to ensure the balance of the air pressure inside and outside the oil storage cotton and avoid leakage and poor circulation of e-liquid.
It effectively reduces the possibility of e-liquid leakage, ensures smooth circulation of e-liquid, improves user experience, and avoids the dry and burning smell during suction.
Smart Images
Figure CN222548581U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic cigarettes, and in particular to a large-capacity disposable electronic cigarette. Background Art
[0002] Electronic cigarettes are electronic products that imitate cigarettes and have the same appearance as cigarettes. Electronic cigarettes can vaporize liquid containing nicotine through an atomizer for users to inhale. Electronic cigarettes can be roughly divided into disposable electronic cigarettes, cartridge-changing electronic cigarettes and refillable electronic cigarettes according to their service life; among them, disposable electronic cigarettes are the most common electronic cigarettes on the market. In recent years, in order to extend the service life of disposable electronic cigarettes, some larger capacity disposable electronic cigarettes have appeared, and the oil filling volume of some disposable electronic cigarettes has exceeded 18 ml. However, large-capacity disposable electronic cigarettes currently generally have the following problems:
[0003] 1. Increasing the amount of oil injected will inevitably increase the risk of oil leakage from the oil storage cotton, causing oil leakage from existing large-capacity disposable electronic cigarettes to occur from time to time, resulting in a poor user experience.
[0004] 2. In order to prevent leakage, some large-capacity e-cigarettes use high-density oil storage cotton to improve the oil-locking ability of the oil storage cotton; however, this will lead to poor circulation of the oil in the oil storage cotton, resulting in a dry burning smell when inhaling, and the user experience is still poor. Utility Model Content
[0005] In order to solve some or all of the problems existing in the above-mentioned prior art, the utility model provides a large-capacity disposable electronic cigarette, comprising a shell, an atomizer and a power supply assembly are arranged in the shell, the atomizer and the power supply assembly are electrically connected, a suction nozzle is arranged at one end of the shell, and an air inlet is arranged at the other end, and the suction nozzle is connected to the atomizer; the atomizer comprises an oil storage assembly and a heating assembly, the heating assembly is connected to the oil storage assembly, one end of the heating assembly is connected to the suction nozzle, and the other end is connected to the air inlet, and the heating assembly is electrically connected to the power supply assembly; the oil storage assembly comprises an oil storage cup, and an upper sealing member and a lower sealing member are respectively arranged at both ends of the oil storage cup, an oil storage cotton is arranged in the oil storage cup, an air-filling gap is arranged between the upper end of the oil storage cotton and the upper sealing member, a first air-filling hole is arranged on the upper sealing member, the first air-filling hole is connected to the air-filling gap, a second air-filling hole is arranged in the oil storage cotton, and the second air-filling hole passes through the upper and lower end surfaces of the oil storage cotton.
[0006] As a further improvement of the utility model, a plurality of air-replenishing grooves are provided on the side wall of the oil-storing cotton, the air-replenishing grooves are connected to the upper and lower end surfaces of the oil-storing cotton, and the air-replenishing grooves are connected to the air-replenishing gaps.
[0007] As a further improvement of the utility model, a connecting groove is provided on the upper end surface of the upper sealing member, the connecting groove is connected to the suction nozzle, there are multiple first air replenishing holes, and all the first air replenishing holes are connected to the connecting groove.
[0008] As a further improvement of the present invention, the suction nozzle is connected to the upper sealing component, and oil-isolating cotton is arranged in the suction nozzle, and the oil-isolating cotton is connected to the connecting groove.
[0009] As a further improvement of the utility model, the heating component includes an intake air pipe and a heating core, one end of the intake air pipe is connected to the upper seal, and the other end is connected to the heating core, the other end of the heating core is connected to the lower seal, the heating core is connected to the air inlet, the heating core is connected to the oil storage cotton, and the heating core is electrically connected to the power supply component.
[0010] As a further improvement of the utility model, the power supply assembly includes a mounting bracket, an air intake channel is provided on the mounting bracket, the two ends of the air intake channel are respectively connected to the air intake hole and the heating core, a suction resistance adjustment part is provided in the air intake channel, the suction resistance adjustment part is detachably connected to the mounting bracket, and the suction resistance adjustment part is a hollow tubular structure.
[0011] As a further improvement of the utility model, a suction resistance adjusting mounting piece is provided in the air intake passage, the suction resistance adjusting mounting piece abuts against the inner side wall of the air intake passage, and the suction resistance adjusting piece is detachably connected to the suction resistance adjusting mounting piece.
[0012] As a further improvement of the present invention, an annular convex strip is provided on the outer side wall of the suction resistance adjustment mounting piece, and the annular convex strip abuts against the inner side wall of the air intake passage.
[0013] As a further improvement of the utility model, a control board and a battery are provided on the mounting bracket, and the battery and the heating core are electrically connected to the control board respectively.
[0014] As a further improvement of the present invention, a display screen is provided on the front end surface of the housing, and the display screen is electrically connected to the control board.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The utility model can use high-density oil storage cotton to increase the oil locking ability of the oil storage cotton, thereby reducing the possibility of oil leakage, and reserve an air-filling gap between the oil storage cotton and the upper seal, so that the oil storage cotton does not directly contact the upper seal, which can further improve the anti-leakage performance. In addition, a second air-filling hole is opened in the oil storage cotton, so that the external air can flow into the second air-filling hole through the first air-filling hole and the air-filling gap, thereby replenishing air in the oil storage cotton, ensuring the balance of air pressure inside and outside the oil storage cotton, so that the oil in the oil storage cotton can flow smoothly, thereby avoiding the occurrence of dry burning smell during inhalation, and improving the user's use experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0019] Figure 2 It is a schematic diagram of the exploded structure of an embodiment of the utility model;
[0020] Figure 3 This is a schematic diagram of the top view of the structure of an embodiment of the utility model;
[0021] Figure 4 yes Figure 3 Schematic diagram of the AA section structure;
[0022] Figure 5 yes Figure 3 Schematic diagram of the structure of the middle BB section;
[0023] Figure 6 This is a schematic diagram of the structure of the upper sealing member in the embodiment of the utility model;
[0024] Figure 7 This is a structural schematic diagram of the upper sealing member from another perspective in an embodiment of the utility model;
[0025] Figure 8 It is a structural schematic diagram of a nozzle adjustment mounting member and a suction resistance adjustment member in an embodiment of the utility model. DETAILED DESCRIPTION
[0026] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order.
[0027] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent, or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention may be combined with other embodiments.
[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0029] like Figure 1-8 As shown, a large-capacity disposable electronic cigarette comprises a shell 1, wherein an atomizer and a power supply assembly are arranged in the shell 1, the atomizer is electrically connected to the power supply assembly, a nozzle 2 is arranged at one end of the shell 1, and an air inlet 101 is arranged at the other end, the nozzle 2 is communicated with the atomizer; during the electronic cigarette inhalation process, the user inhales through the nozzle 2, so that the external air enters the electronic cigarette through the air inlet 101, thereby triggering a start signal, the atomizer works to heat the tobacco oil and atomize it into an aerosol, and the inhaled airflow is mixed with the aerosol and then flows into the nozzle 2 to be inhaled by the user, completing the inhalation process.
[0030] The atomizer includes an oil storage component and a heating component. The oil storage component is used to hold the e-liquid, and the heating component is used to heat the atomized e-liquid. The heating component is connected to the oil storage component to facilitate the e-liquid to flow into the heating component; one end of the heating component is connected to the mouthpiece 2, and the other end is connected to the air inlet 101, so that the suction airflow flows into the atomizer to mix with the aerosol, and the atomized aerosol is also sucked out of the mouthpiece 2; the heating component is electrically connected to the power supply component so that the power supply component supplies power to the heating component.
[0031] The oil storage assembly includes an oil storage cup 3, and an upper seal 4 and a lower seal 5 are respectively provided at both ends of the oil storage cup 3, so that a relatively closed cavity is formed in the oil storage cup 3, which is convenient for holding the e-cigarette oil; an oil storage cotton 6 is provided in the oil storage cup 3, and the oil storage cotton 6 is made of high-density material, has a good oil locking ability, and improves the anti-leakage performance of the electronic cigarette. The lower end surface of the oil storage cotton 6 is connected to the lower seal 5, and an air-filling gap 7 is provided between the upper end of the oil storage cotton 6 and the upper seal 4, and a plurality of first air-filling holes 41 are provided on the upper seal 4, and the first air-filling holes 41 are connected to the external air, and a second air-filling hole 61 is provided in the oil storage cotton 6, and the second air-filling hole 61 runs through the upper and lower end surfaces of the oil storage cotton 6, and the first air-filling hole 41 and the second air-filling hole 61 are respectively connected to the air-filling gap 7. By setting an air-filling gap 7 between the oil-storing cotton 6 and the upper seal 4, the oil-storing cotton 6 will not be in direct contact with the upper seal 4, reducing the leakage of smoke oil from the first air-filling hole 41, and improving the anti-leakage performance of the electronic cigarette. By setting the first air-filling hole 41 in the upper seal 4, the external air can be used to fill the inside of the atomizer through the first air-filling hole 41 during the use of the electronic cigarette, avoiding the negative pressure inside the oil storage cup 3, and ensuring that the smoke oil can flow smoothly. By setting the second air-filling hole 61 in the oil-storing cotton 6, it is convenient for air to flow into the oil-storing cotton 6, preventing the negative pressure inside the oil-storing cotton 6, making the air pressure inside and outside the oil-storing cotton 6 balanced, ensuring that the smoke oil in the oil-storing cotton 6 can flow smoothly, thereby preventing the problem of burning smell when smoking, ensuring the smoking taste, and improving the user's smoking experience.
[0032] During the inhalation process, the smoke oil flows from the oil storage cotton 6 to the heating component, and the heating component heats the smoke oil and atomizes it into an aerosol; as the smoke oil is consumed, a certain negative pressure will appear in the oil storage cotton 6. At this time, the external air flows into the oil storage cup 3 through the first air replenishment hole 41, and then flows into the second air replenishment hole 61 through the air replenishment gap 7, and then flows into the oil storage cotton 6, so that the air pressure inside and outside the oil storage cotton 6 is balanced; thereby, the smoke oil on the upper side can flow to the lower side of the oil storage cotton 6, avoiding the occurrence of dry burning smell when the electronic cigarette is inhaled.
[0033] In this embodiment, the number of the first air supplement holes 41 is five; in other embodiments, the number of the first air supplement holes 41 may also be any other number.
[0034] In order to further ensure the balance of air pressure inside and outside the oil storage cotton 6, a plurality of air replenishing grooves 62 are provided on the side wall of the oil storage cotton 6, and each air replenishing groove 62 is respectively connected to the upper and lower end surfaces of the oil storage cotton 6, that is, each air replenishing groove 62 is connected to the air replenishing gap 7. During the air replenishing process, the external air enters the air replenishing gap 7 through the first air replenishing hole 41, and then flows into the second air replenishing hole 61 and each air replenishing groove 62, so that the air pressure inside and outside the oil storage cotton 6 is balanced, ensuring that the smoke oil can flow smoothly.
[0035] In this embodiment, there are three gas replenishing grooves 62 ; in other embodiments, the number of the gas replenishing grooves 62 may be any other number.
[0036] In order to ensure that each first air-replenishing hole 41 can be evenly filled with air, a connecting groove 42 is provided on the upper end surface of the upper sealing member 4, and the connecting groove 42 is respectively connected with the first air-replenishing hole 41, and the connecting groove 42 is connected with the suction nozzle 2. When the electronic cigarette is filling air, the external air first flows into the connecting groove 42 through the suction nozzle 2, and then flows into each first air-replenishing hole 41 evenly, then flows into the air-replenishing gap 7, and then flows into the second air-replenishing hole 61 and each air-replenishing groove 62, and finally flows into the oil storage cotton 6, so that the air pressure inside and outside the oil storage cotton 6 is balanced, and the purpose of filling air is achieved.
[0037] The suction nozzle 2 is fixedly connected to the upper sealing member 4, and an oil-isolating cotton 8 is arranged inside the suction nozzle 2, and the oil-isolating cotton 8 is connected to the connecting groove 42; by arranging the oil-isolating cotton 8, on the one hand, it can prevent the smoke oil from leaking from the connecting groove 42, and on the other hand, it can also reduce the generation of condensation liquid, thereby ensuring the smoking taste of the electronic cigarette.
[0038] The heating component includes an inhalation air pipe 9 and a heating core 10. One end of the inhalation air pipe 9 passes through the upper end surface of the oil storage cotton 6 and is connected to the upper sealing member 4, and the other end is connected to the heating core 10. The other end of the heating core 10 is connected to the lower sealing member 5. The heating core 10 is respectively connected to the oil storage cotton 6 and the air inlet 101, so that the smoke oil in the oil storage cotton 6 can flow into the heating core 10, and it is also convenient for the inhalation airflow to mix with the atomized aerosol. The heating core 10 is electrically connected to the power supply component so that the power supply component supplies power to the heating core 10. During the inhalation process of the electronic cigarette, the smoke oil in the oil storage cotton 6 flows into the heating core 10, and the heating core 10 works to heat the smoke oil and atomize it into an aerosol. The inhalation airflow flows into the interior of the electronic cigarette from the air inlet 101, and then flows into the heating core 10 to mix with the atomized aerosol, and then flows into the inhalation air pipe 9, and then flows into the suction nozzle 2 to be inhaled by the user.
[0039] The power supply assembly includes a mounting bracket 11, which is limitedly mounted inside the housing 1, and the oil storage cup 3 is connected to the mounting bracket 11. A control board 12 and a battery 13 are mounted on the mounting bracket 11, and the battery 13 and the heating core 10 are electrically connected to the control board 12 respectively; the control board 12 is used to control the operation of the electronic cigarette, and the battery 13 is used to power the electronic cigarette. An air intake channel 111 is arranged in the mounting bracket 11, and the two ends of the air intake channel 111 are respectively connected to the air intake hole 101 and the heating core 10, and a suction resistance adjustment member 14 is arranged in the air intake channel 111. The suction resistance adjustment member 14 is a hollow tubular structure, and the suction resistance adjustment member 14 is detachably connected to the mounting bracket 11. The suction resistance adjustment member 14 is arranged in the air intake channel 111 through which the electronic cigarette passes, so that the aperture of the air intake becomes the inner diameter of the suction resistance adjustment member 14, and the suction resistance adjustment member 14 is detachably connected to the air intake channel 111. The electronic cigarette can adjust the suction resistance of the electronic cigarette by replacing the suction resistance adjustment member 14 with different apertures without opening another mold, thereby reducing the difficulty and cost of adjusting the suction resistance of the electronic cigarette and facilitating mass production of enterprises.
[0040] In order to facilitate the installation of the suction resistance adjusting part 14, in the present embodiment, a suction resistance adjusting mounting part 15 is provided in the air intake passage 111, the suction resistance adjusting mounting part 15 is inserted into the air intake passage 111 and abuts against the inner wall of the air intake passage 111, the suction resistance adjusting part 14 is installed in the suction resistance adjusting mounting part 15, and the suction resistance adjusting part 14 and the suction resistance adjusting mounting part 15 are detachably connected, and by providing the suction resistance adjusting mounting part 15, it is convenient to install the suction resistance adjusting part 14 in the air intake passage 111.
[0041] In order to ensure that the suction resistance adjustment mounting member 15 can be stably installed in the air intake channel 111, two annular ridges 151 are provided on the outer wall of the suction resistance adjustment mounting member 15, and the annular ridges 151 are respectively abutted against the inner wall of the air intake channel 111. In this embodiment, the suction resistance adjustment mounting member 15 is made of elastic silicone material. During the assembly process, when the suction resistance adjustment mounting member 15 is inserted into the air intake channel 111, the inner wall of the air intake channel 111 will squeeze the annular ridge 151, causing the annular ridge 151 to deform elastically, so that the suction resistance adjustment mounting member 15 can be fixedly connected with the mounting bracket 11 in a limited position, thereby improving the stability of the structure.
[0042] In other embodiments, the number of the annular convex strips 151 may be any other number, and the suction resistance adjustment mounting member 15 may also be made of other elastic materials.
[0043] A display screen 16 is provided on the front face of the housing 1, and the display screen 16 is electrically connected to the control board 12; when the electronic cigarette is working, the display screen 16 can be used to display information such as the battery level and the amount of oil in the electronic cigarette, thereby improving the practicality of the electronic cigarette and enhancing the user's experience.
[0044] Working principle:
[0045] When the electronic cigarette is smoked, the user inhales through the mouthpiece 2, and the external air flows into the housing 1 through the air inlet 101, thereby triggering a start signal. The smoke oil flows from the oil storage cotton 6 to the heating core 10, and the control board 12 controls the battery 13 to supply power to the heating core 10. The heating core 10 works to heat the smoke oil and atomize it into aerosol; the suction airflow flows into the air inlet channel 111 through the air inlet 101, and flows into the heating core 10 after passing through the suction resistance adjustment member 14, and mixes with the atomized aerosol; then it flows into the suction air pipe 9 with the aerosol, and then flows into the mouthpiece 2 to be inhaled by the user, completing the suction process of the electronic cigarette.
[0046] After a period of use, as the oil in the oil storage cotton 6 decreases, a certain negative pressure will appear in the oil storage cup 3. At this time, the external air will flow into the electronic cigarette through the suction nozzle 2, and then flow into the connecting groove 42, and then flow into each first air replenishment hole 41 evenly, and then flow into the air replenishment gap 7, and then flow into the second air replenishment hole 61 and each air replenishment groove 62 respectively, and finally flow into the oil storage cotton 6 to replenish the oil storage cotton 6; so that the air pressure inside and outside the oil storage cotton 6 is balanced, ensuring that the oil in the oil storage cotton 6 can flow smoothly, preventing the problem of dry burning smell, ensuring the taste of electronic cigarette smoking, and improving the user's use experience.
[0047] If the inhalation resistance of the electronic cigarette needs to be adjusted, when assembling the electronic cigarette, the inhalation resistance adjusting member 14 with the expected inner diameter can be replaced, and then the inhalation resistance adjusting member 14 can be inserted into the inhalation resistance adjusting mounting member 15, and then the inhalation resistance adjusting mounting member 15 can be inserted into the air inlet channel 111, so that the annular convex strip 151 on the inhalation resistance adjusting mounting member 15 is elastically deformed and sealed against the inner wall of the air inlet channel 111; then the entire electronic cigarette can be assembled. By replacing the inhalation resistance adjusting member 14 with different apertures, the air inlet size of the electronic cigarette can be adjusted, thereby achieving the purpose of adjusting the inhalation resistance of the electronic cigarette.
[0048] The above-mentioned specific implementation mode is a preferred implementation mode of the present utility model, and is not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation mode. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.
Claims
1. A large-capacity disposable electronic cigarette, characterized by: The invention comprises a shell, wherein an atomizer and a power supply assembly are arranged in the shell, wherein the atomizer and the power supply assembly are electrically connected, wherein a suction nozzle is arranged at one end of the shell, and an air inlet is arranged at the other end, wherein the suction nozzle is connected to the atomizer; The atomizer comprises an oil storage component and a heating component, wherein the heating component is connected to the oil storage component, one end of the heating component is connected to the suction nozzle, and the other end is connected to the air inlet, and the heating component is electrically connected to the power supply component; The oil storage assembly includes an oil storage cup, an upper seal and a lower seal are respectively provided at both ends of the oil storage cup, oil storage cotton is provided in the oil storage cup, an air-replenishing gap is provided between the upper end of the oil storage cotton and the upper seal, a first air-replenishing hole is provided on the upper seal, the first air-replenishing hole is communicated with the air-replenishing gap, a second air-replenishing hole is provided in the oil storage cotton, and the second air-replenishing hole passes through the upper and lower end surfaces of the oil storage cotton.
2. The large-capacity disposable electronic cigarette according to claim 1, characterized in that: A plurality of air-replenishing grooves are arranged on the side wall of the oil-storing cotton, the air-replenishing grooves are connected to the upper and lower end surfaces of the oil-storing cotton, and the air-replenishing grooves are connected to the air-replenishing gaps.
3. The large-capacity disposable electronic cigarette according to claim 1, characterized in that: A communication groove is provided on the upper end surface of the upper sealing member, and the communication groove is communicated with the suction nozzle. There are a plurality of first air replenishing holes, and all the first air replenishing holes are communicated with the communication groove.
4. The large-capacity disposable electronic cigarette according to claim 3, characterized in that: The suction nozzle is connected to the upper sealing component, and oil-isolating cotton is arranged in the suction nozzle, and the oil-isolating cotton is connected to the connecting groove.
5. The large-capacity disposable electronic cigarette according to any one of claims 1 to 4, characterized in that: The heating component includes an air suction pipe and a heating core, one end of the air suction pipe is connected to the upper seal, and the other end is connected to the heating core, the other end of the heating core is connected to the lower seal, the heating core is connected to the air inlet, the heating core is connected to the oil storage cotton, and the heating core is electrically connected to the power supply component.
6. The large-capacity disposable electronic cigarette according to claim 5, characterized in that: The power supply assembly includes a mounting bracket, an air intake channel is provided on the mounting bracket, two ends of the air intake channel are respectively connected to the air intake hole and the heating core, a suction resistance adjustment member is provided in the air intake channel, the suction resistance adjustment member is detachably connected to the mounting bracket, and the suction resistance adjustment member is a hollow tubular structure.
7. The large-capacity disposable electronic cigarette according to claim 6, characterized in that: A suction resistance adjusting mounting piece is arranged in the air intake passage, the suction resistance adjusting mounting piece is in contact with the inner side wall of the air intake passage, and the suction resistance adjusting piece is detachably connected to the suction resistance adjusting mounting piece.
8. The large-capacity disposable electronic cigarette according to claim 7, characterized in that: An annular convex strip is provided on the outer side wall of the suction resistance adjustment mounting member, and the annular convex strip abuts against the inner side wall of the air intake passage.
9. The large-capacity disposable electronic cigarette according to claim 6, characterized in that: A control board and a battery are arranged on the mounting bracket, and the battery and the heating core are electrically connected to the control board respectively.
10. The large-capacity disposable electronic cigarette according to claim 9, characterized in that: A display screen is provided on the front end surface of the shell, and the display screen is electrically connected to the control board.