Small night light, lighting device and lighting method

Abstract

The application belongs to the technical field of lighting tools, and particularly relates to a small night lamp, a lighting device and a lighting method. The small night lamp comprises a shell defining an inner cavity, a light emitting part arranged in the inner cavity, a first control assembly arranged in the inner cavity and configured to control the opening and closing of the light emitting part in response to a turnover state, and a second control assembly arranged in the inner cavity. In a first state, the second control assembly closes the first control assembly; and in a second state, the second control assembly opens the first control assembly. The small night lamp can at least solve the problem of limited lighting direction.

Description

Technical Field

[0001] This invention belongs to the field of lighting tool technology, specifically relating to nightlights, lighting devices, and lighting methods. Background Technology

[0002] A nightlight is a device used to provide illumination at night. It is commonly used in rooms, hallways, corridors, and bedrooms, and is usually fixed to the wall. In recent years, the use of nightlights in bedrooms has become increasingly popular. They are generally installed by the bedside to provide light for those who get up at night.

[0003] Existing technology includes a type of nightlight that controls its on / off state by flipping it over. This nightlight turns on when placed upright and turns off when placed upside down. Since it only illuminates when upright, the light emitted is directed upwards and cannot provide illumination below. However, in real life, there are many applications that require downward illumination, such as using a desk lamp for writing at night.

[0004] Therefore, this type of night light, which controls the light to turn on and off by flipping, has limitations in the direction of illumination and cannot fully adapt to various application scenarios in real life. Summary of the Invention

[0005] In view of the technical problems described above, the present invention aims to provide a night light that can solve at least one of the aforementioned technical problems.

[0006] The present invention also proposes a lighting device and lighting method, which can solve at least one of the above-mentioned technical problems.

[0007] According to the present invention, a night light is provided, comprising: A shell with a defined internal cavity; A light-emitting element disposed within the inner cavity; A first control component is disposed within the inner cavity, the first control component being configured to control the opening and closing of the light-emitting element in response to the flipping state of the night light; A second control component is disposed within the cavity. The second control component is configured to turn off the first control component in a first state and turn on the first control component in a second state.

[0008] In one embodiment, the second control component includes a Hall element configured to switch the second control component from a second state to a first state after the sensed magnetic field strength reaches a preset value.

[0009] In one embodiment, the first control component is located below the light-emitting element, the second control component is disposed below the first control component, and the second control component further includes a Hall circuit board, the Hall element being disposed on the side of the Hall circuit board away from the first control component.

[0010] In one embodiment, an attractor is provided inside the housing, capable of adsorbing onto a magnetic component used to provide a magnetic field, wherein when the attractor is adsorbed onto the magnetic component, the magnetic field strength sensed by the Hall element reaches a preset value.

[0011] In one embodiment, the attracting element is a ferromagnetic metal element with a hollow portion inside, and the Hall element is located inside the hollow portion.

[0012] In one embodiment, the attractor is a magnet, a wireless charging coil is disposed on the outside of the magnet, and a wireless charging circuit board electrically connected to the wireless charging coil is disposed on the side of the second control component near the first control component.

[0013] In one embodiment, a plurality of the Hall elements are uniformly arranged circumferentially on the radially outer side of the wireless charging coil.

[0014] In one embodiment, a telescopic assembly is coaxially and movably disposed on the housing, and a charging port is provided on the radial sidewall of the telescopic assembly. The telescopic component is configured such that, in the extended state, the charging port is located outside the housing, and in the retracted state, the charging port is located inside the housing.

[0015] In one embodiment, the telescopic component includes: A fixing part fixedly disposed within the housing; A movable part is movably disposed on the housing along the axial direction, the charging port is located on the radial sidewall of the movable part, and the movable part is configured to selectively adapt to the fixed part so as to switch between an extended state and a retracted state; An elastic element is configured to apply a force to the moving part to move the moving part relative to the housing.

[0016] In one embodiment, a first point and a second point are sequentially arranged from top to bottom within the moving part, and a first guide groove and a second guide groove are provided within the moving part, with both ends of the first guide groove and the second guide groove respectively connected to the first point and the second point. A guide block is provided on the fixing part, and the guide block is configured to move along the first guide groove and the second guide groove. The guide block is configured to be located at the first point when extended and at the second point when retracted.

[0017] In one embodiment, a first guide portion is provided below the first point, the first guide portion being configured to guide the guide block into the first guide groove when it moves downward relative to the moving portion from the first point. A second guide portion is provided below the second point, and the second guide portion is configured to guide the guide block into the second guide groove when it moves downward from the second point relative to the moving portion.

[0018] In one embodiment, the fixing part includes: A fixed sleeve disposed within the housing; An elastic rod, one end of which is connected to the fixed sleeve, and the other end of which is connected to the guide block.

[0019] In one embodiment, the movable part includes a movable sleeve movably disposed within the fixed sleeve along the axial direction, and the axial ends of the elastic member are respectively connected to the movable sleeve and the fixed sleeve.

[0020] In one embodiment, the movable part includes a limiting sleeve fixedly connected to the movable sleeve, the limiting sleeve being configured to abut against the housing in an extended state, thereby preventing the movable part from detaching from the housing.

[0021] In one embodiment, the housing includes: Bottom cover; A lampshade is disposed above the bottom cover and sealed to the bottom cover, the inner cavity being formed between the bottom cover and the lampshade. The bottom cover has a first annular component coaxially arranged on its upper side, and an annular groove adapted to the first annular component is provided on its lower side. A sealing component is provided in the annular groove, and the upper end of the first annular component is sealed and abutted against the sealing component.

[0022] In one embodiment, an abutment portion is provided at the lower part of the lampshade, and a second annular member and a third annular member are sequentially provided from the inside to the outside at the lower part of the abutment portion. The second annular member, the third annular member, and the abutment portion together define the annular groove. The housing also includes an upper cover, and an inwardly extending fastening portion is provided at the lower part of the upper cover. The inner wall of the upper cover contacts the outer wall of the abutment portion, and the fastening portion extends between the abutment portion and the bottom cover. The radially inner end of the fastening portion contacts the outer wall of the third annular member.

[0023] According to the present invention, a lighting device is also provided, including a lamp holder and a night light provided according to the present invention that can be mounted on the lamp holder.

[0024] In one embodiment, the lamp holder is configured in a generally C-shape, and a mounting portion is provided on the inner surface of the upper end and / or lower end of the lamp holder, wherein at least one of a magnetic element and a wireless charger is provided in the mounting portion.

[0025] In one embodiment, an adjustment element is provided on the outer surface of the upper end of the lamp holder for controlling the opening and closing of the light-emitting element and the light intensity.

[0026] According to the present invention, a method for providing illumination using the lighting device provided according to the present invention is also provided, comprising the steps of: The night light is installed on the mounting part of the lamp holder, and the light-emitting element is turned on or off and the light intensity is controlled by operating the adjustment part on the lamp holder; or the night light is separated from the lamp holder, and the light-emitting element is turned on or off by flipping the night light.

[0027] Compared with the prior art, this application has at least the following advantages.

[0028] The second control component of the present invention can switch between a first state and a second state. In the first state, the second control component can turn off the first control component. After the first control component is turned off, the night light will not respond to the flip state to control the light-emitting element to turn on and off, but will instead switch to constant light or other methods to control the turning on and off, thereby meeting the needs of the night light in various lighting directions. Attached Figure Description

[0029] The invention will now be described with reference to the accompanying drawings.

[0030] Figures 1-3 A schematic diagram of a night light according to an embodiment of the present invention is shown; Figures 4-6 A schematic diagram of an embodiment of a night light according to the present invention is shown, in which a wireless charging coil is provided inside the night light. Figures 7-10 A schematic diagram of an embodiment of a nightlight according to the present invention, wherein a telescopic component is provided inside the nightlight, is shown. Figure 10 yes Figure 9 A schematic diagram of the AA cross-section; Figure 11 A schematic diagram of one embodiment of a lighting device comprising a lamp holder and a night light according to the present invention is shown.

[0031] The reference numerals in the figure are as follows: 1. Housing; 10. Inner cavity; 11. Bottom cover; 111. First annular component; 12. Lampshade; 120. Annular groove; 121. Sealing component; 122. Abutting part; 123. Second annular component; 124. Third annular component; 13. Upper cover; 131. Fastening part; 14. Telescopic opening; 15. Charging port; 2. Light-emitting components; 3. First control component; 31. Control motherboard; 32. Gyroscope; 4. Second control component; 41. Hall element; 42. Hall circuit board; 5. Attracting component; 51. Ferromagnetic metal component; 52. Hollowed-out part; 53. Magnet; 61. Wireless charging coil; 62. Wireless charging circuit board; 7. Telescopic assembly; 71. Fixing part; 711. Guide block; 712. Fixing sleeve; 713. Elastic rod; 72. Moving part; 720. Stop; 721. First position; 722. Second position; 723. First guide groove; 724. Second guide groove; 725. First guide part; 726. Second guide part; 727. Moving sleeve; 728. Mounting plate; 729. Limiting sleeve; 73. Elastic element; 741. First tip; 742. Second tip; 743. Third tip; 744. First notch; 100. Night light; 200. Lamp holder; 202. Magnetic component; 203. Wireless charger; 204. Main body; 2041. Base; 2042. Connecting part; 2043. Top part; 205. Mounting part; 206. Adjusting part; 2061. Knob; 2062. Button; 300. Lighting device.

[0032] In this application, all drawings are schematic and are used only to illustrate the principles of the invention, and are not necessarily drawn to scale. Detailed Implementation

[0033] The invention will now be described with reference to the accompanying drawings.

[0034] It should be noted that, in this application, the direction indicated by the central axis of the nightlight according to the present invention is described as "axial," and the direction perpendicular to the central axis of the nightlight is described as "radial." In describing the structure of the nightlight, the direction near the upper cover is described as "above," "upper side," or similar directional terms, and the direction near the bottom cover is described as "below," "lower side," or similar directional terms. When describing the illumination angle of the nightlight, the direction in space facing the Earth is described as "below" or similar terms, and the direction in space away from the Earth is described as "above" or similar terms.

[0035] Figures 1-10A schematic diagram of a night light 100 according to the present invention is shown.

[0036] According to the present invention, such as Figures 1-3 As shown, in one embodiment, the night light 100 includes a housing 1, a light-emitting element 2, a first control component 3, and a second control component 4.

[0037] An inner cavity 10 is defined inside the housing 1. The light-emitting element 2, the first control component 3, and the second control component 4 are all disposed in the inner cavity 10 of the housing 1. The light-emitting element 2, the first control component 3, and the second control component 4 are electrically connected to each other.

[0038] The first control component 3 is configured to control the light-emitting element 2 to turn on and off in response to a flipping state. That is, when the first control component 3 is working normally, the light-emitting element 2 can be turned on and off by flipping the night light 100. For example, when the night light 100 is placed upright (i.e., in the position shown in the image), the light-emitting element 2 will turn on and off. Figure 1 When the night light 100 is placed upside down, the light-emitting element 2 is in the on state. When the night light 100 is placed upside down, the light-emitting element 2 is in the off state.

[0039] The second control component 4 is configured such that, in the first state, the second control component 4 turns off the first control component 3; and in the second state, the second control component 4 turns on the first control component 3. That is, when the second control component 4 is in the first state, it can turn off the first control component 3, at which point the light-emitting element 2 is no longer controlled by the first control component 3, and the flipping state of the night light 100 no longer affects the turning on and off of the light-emitting element 2. When the second control component 4 is in the second state, it can turn on the first control component 3, at which point the light-emitting element 2 is controlled by the first control component 3, and the turning on and off of the light-emitting element 2 can be controlled by flipping the night light 100.

[0040] Furthermore, when the second control component 4 turns off the first control component 3, the light-emitting element 2 is set to a constantly lit state, or the light-emitting element 2 is configured to be turned on and off by being controlled by other switches. Other switches can be physical buttons on the night light 100, or remote control devices that connect the night light 100 wirelessly. These other switches are well known to those skilled in the art and will not be described in detail here.

[0041] It is easy to understand that the specific electrical connection structure between the light-emitting element 2, the first control component 3, and the second control component 4 is well known to those skilled in the art and will not be described in detail here.

[0042] As is readily understood, the night light 100 includes a power supply (not shown in the figure) for supplying power to the light-emitting element 2, the first control component 3, and the second control component 4. The electrical connection structure between the power supply and the light-emitting element 2, the first control component 3, and the second control component 4 is well known to those skilled in the art and will not be described in detail here.

[0043] When the first control component 3 controls the light-emitting element 2 of the night light 100 to turn on and off, the night light 100 can only be turned on in certain specific flipping states and turned off in other specific flipping states. For example, if the first control component 3 of the night light 100 is set to turn on the light-emitting element 2 when placed upright and turn off the light-emitting element 2 when placed upside down, then the night light 100 can only illuminate upwards and cannot illuminate downwards, thus limiting the illumination angle of the night light 100.

[0044] This invention solves the problem of limited illumination angle of nightlights by setting a second control component 4 to control the opening and closing of the first control component 3. Taking the example of the first control component 3 of the nightlight 100 being set to turn on the light-emitting element 2 when placed upright and turn off the light-emitting element 2 when placed upside down, when it is necessary to illuminate the area below the nightlight 100, simply switch the second control component 4 to the first state. The second control component 4 will turn off the first control component 3. At this time, the light-emitting element 2 is no longer controlled by the first control component 3, and the flipped state of the nightlight 100 no longer affects the opening and closing of the light-emitting element 2. Even when the nightlight 100 is placed upside down, the light-emitting element 2 can still be turned on, thereby illuminating the area below and removing the limitation on the illumination angle of the nightlight 100.

[0045] In one embodiment, the first control component 3 includes a control motherboard 31 and a gyroscope 32 mounted on the control motherboard 31. The light-emitting element 2 is electrically connected to the control motherboard 31. The gyroscope 32 detects the flip state of the night light 100. After detecting the flip state of the night light 100, the gyroscope 32 transmits an electrical signal to the control motherboard 31, which then controls the light-emitting element 2 to turn on and off according to the flip state of the night light 100. The specific structure and working principle of the control motherboard 31 and the gyroscope 32 are well known to those skilled in the art. This is merely one embodiment provided by the present invention and is not intended to limit the scope of protection of the present invention. Those skilled in the art can use other structures in the prior art to replace the control motherboard 31 and the gyroscope 32 provided in this embodiment.

[0046] In one embodiment of the invention, such as Figure 1 As shown, the second control component 4 includes a Hall element 41, which is configured to switch the second control component 4 from the second state to the first state after the sensed magnetic field strength reaches a preset value.

[0047] In this setup, when the magnetic field strength sensed by the Hall element 41 does not reach the preset value, the second control component 4 is in the second state, and the first control component 3 is turned on. At this time, the light-emitting element 2 can be turned on and off by flipping the night light 100.

[0048] When it is necessary to turn off the first control component 3, the Hall element 41 of the night light 100 is brought close to a magnetic component 202 (such as a magnet) that can generate a magnetic field. When the Hall element 41 senses that the magnetic field strength reaches a preset value, the second control component 4 can switch from the second state to the first state, turning off the first control component 3. At this time, the light-emitting component 2 is not affected by the flip state and turns on and off.

[0049] It is easy to understand that the shell 1 is made of a material that does not shield magnetic fields.

[0050] In one embodiment, the first control component 3 is disposed below the light-emitting element 2, and the second control component 4 is disposed below the first control component 3. The second control component 4 includes a Hall circuit board 42, and a Hall element 41 is disposed on the side of the Hall circuit board 42 away from the first control component 3. In this configuration, the Hall element 41 can be positioned as close as possible to the lower end of the housing 1. By bringing the magnetic element 202 close to the lower end of the housing 1, the magnetic field strength sensed by the Hall element 41 can reach a preset value, thereby switching the second control component 4 from the second state to the first state without blocking the illumination light from the light-emitting element 2.

[0051] In one embodiment, an attractor 5 is provided inside the housing 1, capable of adsorbing onto a magnetic component 202 used to provide a magnetic field. When the night light 100 is adsorbed onto the magnetic component 202 by the attractor 5, the magnetic field strength sensed by the Hall element 41 reaches a preset value. By configuring the magnetic component 202 to be able to adsorb onto the night light 100, the night light 100 can remain in a state unaffected by flipping for a long time.

[0052] In one embodiment, the night light 100 according to the present invention can be used in conjunction with the lamp holder 200 to form a lighting device 300, such as... Figure 11 As shown.

[0053] In one embodiment, the lamp holder 200 includes a body 204 and a mounting portion 205 disposed on the body 204.

[0054] The main body 204 of the lamp holder 200 includes a base 2041, a connecting part 2042, and a top part 2043.

[0055] The base 2041 is located at the lower end of the connecting part 2042. The lower end surface of the base 2041 is flat, so that the lamp holder 200 can be placed on a horizontal surface such as a table or the ground through the lower end flat surface of the base 2041.

[0056] The lower end of the connecting part 2042 is fixedly connected to the base 2041, and the upper end extends upward. The connecting part 2042 can be configured as a vertical rod or a curved rod, without specific limitation.

[0057] The top component 2043 is located at the upper end of the connecting part 2042 and extends to the side above the base 2041, ensuring that the lamp bracket 200 will not tip over when placed on a horizontal surface via the lower end plane of the base 2041.

[0058] In this embodiment, as Figure 11 As shown, the top component 2043 is located above the base 2041, and the connecting part 2042 connects the base 2041 and the top component 2043 to form an integral structure, so that the main body 204 is roughly "C" shaped.

[0059] According to the present invention, the mounting part 205 may be disposed on any one or more of the top part 2043, the base 2041, and the connecting part 2042. For example... Figure 11 As shown, in this embodiment, a mounting part 205 is provided on the base 2041 and the top part 2043 respectively.

[0060] A magnetic component 202 capable of generating a magnetic field is provided inside the mounting portion 205. A space for accommodating the night light 100 is formed on the inner side of the mounting portion 205 facing the lamp holder 200. By magnetically connecting the magnetic component 202 of the mounting portion 205 with the attraction component 5 of the night light 100, the night light 100 can be mounted on the lamp holder 200 to form an integrated lighting device 300.

[0061] Taking the night light 100 with its first control component 3 set to turn on the light-emitting element 2 when placed upright and turn off when placed upside down as an example, when the night light 100 is placed upside down near the mounting portion 205 on the top component 2043 of the lamp holder 200, the magnetic component 202 inside the mounting portion 205 generates an attractive force on the attraction component 5 inside the night light 100, thus fixing the night light 100 under the mounting portion 205 of the lamp holder 200 in an upside-down position. At this time, the magnetic field strength sensed by the Hall element 41 reaches a preset value, and the second control component 4 switches from the second state to the first state, turning off the first control component 3. The light-emitting element 2 is not affected by the flipped state and turns on and off. The light-emitting element 2 is either in a constantly lit state or turned on and off by control of other switches, so that the night light 100 can illuminate the area below, achieving a lighting effect similar to a table lamp.

[0062] It is easy to understand that the night light 100 can also be placed upright on the mounting part 205 of the base 2041 of the lamp holder 200, which will not be elaborated here.

[0063] In one embodiment, an adjustment member 206 is provided on the outer surface of the top component 2043 of the lamp holder 200. The adjustment member 206 can be configured as a knob 2061 and / or a button 2062. When the night light 100 is mounted on the lamp holder 200 to form a lighting device 300, the opening and closing of the light-emitting element 2 of the night light 100 and its light intensity can be controlled by turning or pressing the adjustment member 206. The specific structure of controlling the opening and closing of the light-emitting element 2 of the night light 100 and its light intensity via the adjustment member is well known to those skilled in the art and will not be described in detail here.

[0064] In a preferred embodiment, the lamp holder 200 of the lighting device 300 may be the lamp holder in a patent application filed by the applicant on the same day entitled "Lamp Holder and Lighting Device", which is incorporated herein by reference.

[0065] In one embodiment, the attracting element 5 is configured as a ferromagnetic metal element 51. For example... Figures 4-6 As shown, in this embodiment, the ferromagnetic metal component 51 is configured as a flat plate and is disposed parallel to the bottom of the Hall circuit board 42. A cutout portion 52 is provided on the ferromagnetic metal component 51, and the Hall element 41 is located within the cutout portion 52. That is, the cutout portion 52 is provided at the position of the ferromagnetic metal component 51 corresponding to the position of the Hall element 41, preventing the ferromagnetic metal component 51 from obstructing the Hall element 41 and the magnetic component 202 used to generate the magnetic field. When the ferromagnetic metal component 51 and the magnetic component 202 are mutually attracted and centered, the cutout portion 52 on the ferromagnetic metal component 51 allows the Hall element 41 to be located within a stronger magnetic field range of the magnetic component 202, thereby helping the Hall element 41 to sense a preset magnetic field strength.

[0066] In an embodiment that differs from the ferromagnetic metal component 51, the attracting component 5 is configured as a magnet 53, such as... Figures 4-6 As shown. The magnet 53 is cylindrical and coaxially disposed at the lower end of the inner cavity 10 of the housing 1. A wireless charging coil 61 is disposed radially outside the magnet 53, with the lower end face of the wireless charging coil 61 flush with the lower end face of the magnet 53. The lower end faces of the wireless charging coil 61 and the magnet 53 are in contact with the inner wall of the lower end of the housing 1.

[0067] The Hall effect circuit board 42 of the second control component 4 is coaxially sleeved on the outside of the magnet 53, and is positioned parallel above the wireless charging coil 61. The radial dimension of the Hall effect circuit board 42 is larger than the radial dimension of the wireless charging coil 61. The Hall element 41 is fixedly disposed on the lower radial edge of the Hall effect circuit board 42, so that the Hall element 41 is located radially outside the wireless charging coil 61. In this arrangement, the Hall element 41 can be as far away from the magnet 53 as possible, avoiding the magnetic field generated by the magnet 53 from affecting the Hall element 41.

[0068] A wireless charging circuit board 62, electrically connected to the wireless charging coil 61, is provided on the side of the second control component 4 near the first control component 3. Specifically, in this embodiment, the wireless charging circuit board 62 is arranged parallel between the Hall circuit board 42 and the control main board 31. The wireless charging circuit board 62 is electrically connected to the wireless charging coil 61 and the power supply, and can charge the power supply of the night light 100 through the wireless charging coil 61 in conjunction with the wireless charger.

[0069] In one embodiment, a wireless charger 203 is provided in the mounting portion 205 of the lamp holder 200. After the night light 100 is attracted to the magnetic component 202 in the mounting portion 205 by the magnet 53, the wireless charging coil 61 of the night light 100 is adapted to the wireless charger 203. At this time, the wireless charger 203 can charge the power supply in the night light 100 through the wireless charging coil 61.

[0070] In one embodiment, a plurality of Hall elements 41 are disposed at the lower part of the Hall circuit board 42, and the plurality of Hall elements 41 are uniformly arranged circumferentially on the radially outer side of the wireless charging coil 61. By disposing of a plurality of Hall elements 41, the sensing accuracy of the Hall elements 41 to the magnetic field strength can be improved, and the technical problem of interference between the magnet 53 and the magnetic component 202 used to generate the magnetic field affecting the Hall elements 41 can be solved. In this embodiment, a total of three Hall elements 41 are disposed, and the three Hall elements 41 are arranged at a 120-degree angle on the radially outer side of the wireless charging coil 61.

[0071] In one embodiment, where a wireless charging coil 61 is provided inside the night light 100, the housing 1 is configured as a waterproof structure.

[0072] Specifically, the housing 1 includes a bottom cover 11 and a lampshade 12. The lampshade 12 is sealed and fixed above the bottom cover 11, and an inner cavity 10 is defined between the bottom cover 11 and the lampshade 12.

[0073] A first annular member 111, protruding upwards, is coaxially arranged on the upper side of the bottom cover 11. An annular groove 120, adapted to the first annular member 111, is provided on the lower side of the lampshade 12, and a sealing member 121 is disposed within the annular groove 120. After the lampshade 12 and the bottom cover 11 are interlocked and fixedly connected, the upper end of the first annular member 111 of the bottom cover 11 seals against the sealing member 121 on the lampshade 12, thereby sealing the bottom cover 11 and the lampshade 12 and forming a waterproof structure. With this configuration, the night light 100 can be directly rinsed with water to remove surface stains and can also be used in aquatic environments.

[0074] In one embodiment, an abutment portion 122 is coaxially provided at the lower part of the lampshade 12. A second annular member 123 and a third annular member 124, protruding downwards, are sequentially provided from the inside to the outside at the lower part of the abutment portion 122. The second annular member 123, the third annular member 124, and the abutment portion 122 together define an annular groove 120. A sealing member 121 is disposed within the annular groove 120. After the lampshade 12 and the bottom cover 11 are interlocked and fixedly connected, the upper end of the first annular member 111 of the bottom cover 11 seals against the sealing member 121 on the lampshade 12, thereby sealing the bottom cover 11 and the lampshade 12 to form a waterproof structure.

[0075] In one embodiment, the radial outer dimension of the second annular member 123 is smaller than the radial inner dimension of the first annular member 111, and the second annular member 123 can be adapted to the first annular member 111 to serve as a guide.

[0076] In one embodiment, the housing 1 further includes an upper cover 13, on the lower part of which a fastening portion 131 extending inward is provided. An abutment portion 122 is located above the upper end face of the radial edge of the bottom cover 11, and there is an axial gap between the lower end face of the abutment portion 122 and the upper end face of the radial edge of the bottom cover 11.

[0077] When the upper cover 13 is assembled with the bottom cover 11 and the lampshade 12, the fastening part 131 extends between the abutting part 122 and the bottom cover 11. The radial inner end of the fastening part 131 contacts the outer wall of the third annular part 124, the radial outer wall of the abutting part 122 of the lampshade 12 contacts the inner wall of the upper cover 13, and the lower end face of the fastening part 131 contacts the upper end face of the radial edge of the bottom cover 11.

[0078] In one embodiment, the upper cover 13 is made of a soft material with a certain shape, such as silicone. This arrangement allows for quick disassembly and assembly of the upper cover 13 relative to the bottom cover 11 and the lampshade 12.

[0079] In one embodiment provided by the present invention, such as Figures 7-10 As shown, a telescopic assembly 7 is coaxially and movably disposed on the housing 1, and a charging port 15 is disposed on the radial sidewall of the telescopic assembly 7. Figure 9and Figure 10 As shown, in the extended state, the portion of the telescopic component 7 with the charging port 15 is located outside the housing 1, allowing the night light 100 to be charged via the charging port 15. Figure 7 and Figure 8 As shown, in the retracted state, the portion of the telescopic component 7 with the charging port 15 is located inside the housing 1, reducing the space occupied by the night light 100.

[0080] It is easy to understand that the specific structure of charging the night light 100 through the charging port 15 is well known to those skilled in the art and will not be described in detail here.

[0081] In one embodiment, the telescopic component 7 includes a fixed part 71, a movable part 72, and an elastic element 73.

[0082] The fixing part 71 is fixedly disposed within the housing 1, and the moving part 72 is movably disposed coaxially within the housing 1 along the axial direction. The charging port 15 is located on the radial sidewall of the moving part 72. The moving part 72 is configured to adapt to the fixing part 71 so as to switch between an extended state and a retracted state. The elastic member 73 is configured to apply a force to the moving part 72 to move the moving part 72 outward relative to the housing 1.

[0083] In the extended state, the portion of the movable part 72 with the charging port 15 is located outside the housing 1, allowing the night light 100 to be charged via the charging port 15. By pressing the movable part 72 axially with external force, the movable part 72 can be retracted into the housing 1, switching to the retracted state.

[0084] In the retracted state, the portion of the movable part 72 with the charging port 15 is located inside the housing 1. By pressing the movable part 72 axially with an external force and then releasing the external force, the movable part 72 can be moved outward relative to the housing 1 under the action of the elastic member 73, switching to the extended state, so that the charging port 15 of the movable part 72 is located outside the housing 1.

[0085] In one specific embodiment, the fixing part 71 includes a fixing sleeve 712, an elastic rod 713, and a guide block 711. The moving part 72 includes a moving sleeve 727.

[0086] The fixed sleeve 712 is coaxially fixed inside the housing 1. The upper end of the elastic rod 713 is fixedly connected to the fixed sleeve 712, and the lower end of the elastic rod 713 is connected to the guide block 711.

[0087] The movable sleeve 727 is movably disposed coaxially within the fixed sleeve 712. The two ends of the elastic element 73 are respectively connected to the movable sleeve 727 and the fixed sleeve 712, thereby providing a force for the movable sleeve 727 to move downward relative to the fixed sleeve 712.

[0088] Within the movable sleeve 727 of the movable part 72, a first point 721 and a second point 722 are arranged sequentially from top to bottom. A first guide groove 723 and a second guide groove 724 are also provided within the movable part 72. Both ends of the first guide groove 723 and the second guide groove 724 are connected to the first point 721 and the second point 722, respectively. That is, the upper ends of both the first guide groove 723 and the second guide groove 724 are connected to the first point 721, and the lower ends of both the first guide groove 723 and the second guide groove 724 are connected to the second point 722.

[0089] The guide block 711 at the lower end of the elastic rod 713 can move along the first guide groove 723 and the second guide groove 724. In the extended state, the guide block 711 is located at the first point 721. In the retracted state, the guide block 711 is located at the second point 722.

[0090] Furthermore, a first guide portion 725 is provided on the movable sleeve 727 of the movable part 72. The first guide portion 725 is located between the first point 721 and the second point 722, and between the first guide groove 723 and the second guide groove 724.

[0091] The upper end of the first guide portion 725 is configured with a first tip 741 that is inclined toward the second guide groove 724. In the extended state, the guide block 711 is located at the first point 721. When it is necessary to switch the telescopic assembly to the retracted state, an external force is used to press the movable sleeve 727 upward, causing the movable sleeve 727 to move upward relative to the guide block 711. Since the first tip 741 of the first guide portion 725 is inclined toward the second guide groove 724, the guide block 711 will move along the outer contour of the first guide portion 725 toward the first guide groove 723, thereby causing the guide block 711 to move along the first guide groove 723 toward the second point 722.

[0092] The second point 722 is located at the lower end of the first guide portion 725. A second tip 742, inclined towards the first guide groove 723, is provided on the side of the lower end of the first guide portion 725 near the first guide groove 723 (the side of the second point 722 near the first guide groove 723). When the guide block 711 moves downwards along the first guide groove 723 to its lowest point, the force pressing the movable sleeve 727 is released, causing the movable sleeve 727 to move downwards relative to the guide block 711 under the action of the elastic member 73. The guide block 711, under the action of the elastic rod 713, moves towards the second point 722 through the gap between the second tip 742 and the first guide groove 723. After the guide block 711 enters the second point 722, it can restrict the movable sleeve 727 from continuing to move downwards; at this time, the telescopic assembly 7 is in a retracted state.

[0093] A second guide portion 726 is provided on the movable sleeve 727 of the movable part 72. The second guide portion 726 is located below the second point 722 and between the first guide groove 723 and the second guide groove 724.

[0094] A third tip 743, inclined toward the first guide groove 723, is provided at the upper end of the second guide portion 726. In the retracted state, the guide block 711 is located at the second point 722. When it is necessary to switch the telescopic assembly 7 to the extended state, an external force is used to press the moving sleeve 727 upward, causing the moving sleeve 727 to move upward relative to the guide block 711. Because the third tip 743 of the second guide portion 726 is inclined toward the first guide groove 723, the guide block 711 will move along the outer contour of the second guide portion 726 toward the second guide groove 724.

[0095] A first notch 744 is provided on the side of the lower end of the first guide portion 725 near the second guide groove 724 (the side of the second point 722 near the second guide groove 724). When the guide block 711 moves downward along the second guide groove 724 to the lowermost end of the second guide groove 724, and the force pressing the moving sleeve 727 is removed, the first notch 744 prevents the guide block 711 from returning to the second point 722, so the guide block 711 eventually moves along the second guide groove 724 into the first point 721. After the guide block 711 enters the first point 721, it can restrict the moving sleeve 727 from continuing to move downward, at which time the telescopic assembly 7 is in the extended state.

[0096] In one embodiment, the movable part 72 further includes a mounting plate 728 and a limiting sleeve 729. The mounting plate 728 is coaxially fixed to the lower end of the movable sleeve 727, and the radial dimension of the mounting plate 728 is larger than the radial dimension of the movable sleeve 727. The magnet 53 is coaxially fixed to the lower end of the mounting plate 728. The wireless charging coil 61 is coaxially disposed outside the magnet 53 and located at the lower end of the mounting plate 728. The Hall circuit board 42 and the wireless charging circuit board 62 are integrated into one circuit board, coaxially sleeved on the outside of the movable sleeve 727, and disposed parallel to the mounting plate 728. Hall elements 41 are disposed below the circuit board formed by the integration of the Hall circuit board 42 and the wireless charging circuit board 62, and multiple Hall elements 41 are evenly distributed along the circumferential direction.

[0097] The limiting sleeve 729 is a cylindrical structure that is closed at the lower end and open at the upper end. The limiting sleeve 729 is coaxially and fixedly sleeved on the outside of the movable sleeve 727 and the mounting plate 728. The radial inner wall of the limiting sleeve 729 contacts the radial outer wall of the mounting plate 728. The lower inner wall of the limiting sleeve 729 contacts the lower end face of the wireless charging coil 61, providing protection and fixation for the wireless charging coil 61.

[0098] The limiting sleeve 729 is configured to abut against the housing 1 in its extended state, thereby preventing the moving part 72 from detaching from the housing 1. Specifically, the radial dimension of the limiting sleeve 729 is adapted to the radial dimension of the telescopic opening 14 of the housing 1 (the inner diameter of the telescopic opening 14 is slightly larger than the outer diameter of the limiting sleeve 729), allowing the limiting sleeve 729 to retract into or extend out of the telescopic opening 14. A radially outwardly extending stop 720 is provided at the upper end of the limiting sleeve 729, and the radial outer dimension of the stop 720 is larger than the inner diameter of the telescopic opening 14. When the moving part 72 moves downward relative to the housing 1, the stop 720 of the limiting sleeve 729 can prevent the moving part 72 from detaching from the housing 1 by axially abutting against the telescopic opening 14.

[0099] According to the present invention, the housing 1 can be a housing of an existing night light. In a preferred embodiment, the housing 1 can be a housing including an upper cover, a base ring, a bottom cover, and other related structures disclosed in US11578855B2, which is incorporated herein by reference.

[0100] In one embodiment of the present invention, a method for illumination using the lighting device 300 according to the present invention is also provided, comprising the steps of: mounting a night light 100 to the mounting portion 205 of a lamp holder 200, and controlling the opening or closing of the light-emitting element 2 and the light intensity by operating the adjusting member 206 on the lamp holder 200.

[0101] In another embodiment, the method of using the lighting device 300 according to the invention for illumination includes the steps of: separating the night light 100 from the lamp holder 200, and controlling the light-emitting element 2 to turn on or off by flipping the night light 100.

[0102] Embodiments of nightlights and lighting devices, as well as embodiments of methods for using lighting device 300 for illumination, are listed and described below.

[0103] 1. A night light, comprising: a housing defining an inner cavity; a light-emitting element disposed within the inner cavity; a first control component disposed within the inner cavity, the first control component being configured to control the light-emitting element to turn on and off in response to a flip state; a second control component disposed within the inner cavity; in a first state, the second control component turns off the first control component; in a second state, the second control component turns on the first control component.

[0104] 2. The night light according to any one or more of 1 above and 3-33 below, the second control component includes a Hall element, the Hall element being configured to switch the second control component from the second state to the first state after the sensed magnetic field strength reaches a preset value.

[0105] 3. In the night light according to any one or more combinations of 1-2 above and 4-33 below, the first control component is located below the light-emitting element.

[0106] 4. For a night light based on any one or more combinations of 1-3 above and 5-33 below, the second control component is disposed below the first control component.

[0107] 5. For a night light based on any one or more combinations of 1-4 above and 6-33 below, the second control component includes a Hall circuit board.

[0108] 6. In the night light according to any one or more combinations of 5 above and 7-33 below, the Hall element is disposed on the side of the Hall circuit board away from the first control component.

[0109] 7. A night light according to any one or more combinations of 1-6 above and 8-33 below, wherein an attractive element is provided inside the housing, which can be attracted to a magnetic component used to provide a magnetic field.

[0110] 8. In a nightlight based on any one or more combinations of 7 above and 9-33 below, when the attracting element is attached to the magnetic element, the magnetic field strength sensed by the Hall element reaches a preset value.

[0111] 9. The night light according to any one or more combinations of 7-8 above and 10-33 below has an attraction element made of ferromagnetic metal.

[0112] 10. A night light according to any one or more combinations of 9 above and 11-33 below, wherein a hollow part is provided in the ferromagnetic metal part.

[0113] 11. In the night light according to any one or more combinations of 10 above and 12-33 below, the Hall element is located inside the hollow part.

[0114] 12. For nightlights based on any one or more combinations of 7-8 above and 13-33 below, the attracting element is set as a magnet.

[0115] 13. A night light according to any one or more combinations of 12 above and 14-33 below, wherein a wireless charging coil is provided on the outside of the magnet.

[0116] 14. The night light according to 13 above and any one or more of 15-33 below has a wireless charging circuit board provided in the inner cavity.

[0117] 15. The night light according to any one or more combinations of 14 above and 16-33 below, wherein a wireless charging circuit board electrically connected to the wireless charging coil is provided on the side of the second control component near the first control component.

[0118] 16. In the night light according to any one or more combinations of 13-15 above and 17-33 below, a plurality of Hall elements are uniformly arranged circumferentially on the radial outer side of the wireless charging coil.

[0119] 17. A nightlight according to any one or more combinations of 1-16 above and 18-33 below, wherein a telescopic component is coaxially and movably provided on the housing, and a charging port is provided on the radial sidewall of the telescopic component. In the extended state, the portion of the telescopic component with the charging port is located outside the housing. In the retracted state, the portion of the telescopic component with the charging port is located inside the housing.

[0120] 18. The night light according to any one or more combinations of 17 above and 19-33 below, the telescopic assembly includes: a fixed part fixedly disposed within the housing; a movable part movably disposed axially on the housing, the charging port being located on the radial sidewall of the movable part, the movable part being configured to selectively adapt to the fixed part so as to switch between an extended state and a retracted state.

[0121] 19. The night light according to any one or more combinations of 18 above and 20-33 below, the telescopic assembly includes an elastic element configured to apply a force to the moving part to move outward relative to the housing.

[0122] 20. A nightlight according to any one or more combinations of 17-19 above and 21-33 below, wherein a first point and a second point are sequentially provided from top to bottom within the moving part. The guide block is configured to be located at the first point in the extended state and at the second point in the retracted state.

[0123] 21. The night light according to any one or more combinations of 20 above and 22-33 below, wherein a first guide groove and a second guide groove are provided in the moving part, and both ends of the first guide groove and the second guide groove are respectively connected to a first point and a second point.

[0124] 22. A night light according to any one or more combinations of 21 above and 23-33 below, wherein a guide block is provided on the fixing part, and the guide block is configured to move along the first guide groove and the second guide groove.

[0125] 23. A night light according to any one or more combinations of 21-22 above and 24-33 below, wherein a first guide part is provided below the first point, and the first guide part is configured to guide the guide block to enter the first guide groove when it moves downward from the first point relative to the moving part.

[0126] 24. A night light according to any one or more combinations of 21-23 above and 24-33 below, wherein a second guide part is provided below the second point, the second guide part being configured to guide the guide block to enter the second guide groove when it moves downward from the second point relative to the moving part.

[0127] 25. The night light according to any one or more combinations of 18-24 above and 26-33 below, the fixing part includes: a fixing sleeve disposed in the housing; an elastic rod, one end of the elastic rod being connected to the fixing sleeve, and the other end of the elastic rod being connected to a guide block.

[0128] 26. The night light according to any one or more combinations of 18-25 above and 27-33 below, the movable part includes a movable sleeve that is movably disposed within a fixed sleeve along the axial direction.

[0129] 27. In a night light based on any one or more combinations of 26 above and 28-33 below, the axial ends of the elastic element are respectively connected to a movable sleeve and a fixed sleeve.

[0130] 28. The night light according to any one or more combinations of 26-27 above and 29-33 below, the movable part includes a limiting sleeve fixedly connected to the movable sleeve, the limiting sleeve being constructed to abut against the housing in the extended state, thereby preventing the movable part from detaching from the housing.

[0131] 29. A night light according to any one or more combinations of 1-28 above and 30-33 below, the housing includes: a bottom cover; a lampshade disposed above the bottom cover and sealed to the bottom cover, the inner cavity being formed between the bottom cover and the lampshade.

[0132] 30. A night light according to any one or more combinations of 29 above and 31-33 below, wherein a first annular member is coaxially provided on the upper side of the bottom cover, an annular groove adapted to the first annular member is provided on the lower side of the lampshade, a sealing member is provided in the annular groove, and the upper end of the first annular member is sealed and abutted against the sealing member.

[0133] 31. A night light according to any one or more combinations of 30 above and 32-33 below, wherein an abutment portion is provided at the lower part of the lampshade, and a second annular member and a third annular member are provided sequentially from the inside to the outside at the lower part of the abutment portion, wherein the second annular member, the third annular member and the abutment portion together define an annular groove.

[0134] 32. The night light according to any one or more of the combinations of 1-31 above and 33 below, the housing also includes an upper cover.

[0135] 33. According to the night light of 32 above, a fastening part extending inward is provided at the lower part of the upper cover, the inner wall of the upper cover contacts the outer wall of the abutment part, the fastening part extends between the abutment part and the bottom cover, and the radial inner end of the fastening part contacts the outer wall of the third annular member.

[0136] 34. A lighting device comprising a lamp holder and a night light capable of being mounted on the lamp holder according to any one or more combinations of 1-33 above.

[0137] 35. The lighting device according to any one or more of the above 34 and the following 36-40, wherein the lamp holder is constructed in a generally C shape, and the upper and lower ends of the lamp holder are a top component 2043 and a base 2041, respectively.

[0138] 36. A lighting device according to any one or more combinations of 35 above and 37-40 below, wherein a mounting part for mounting a night light is provided on the inner surface of the top part 2043 of the lamp holder.

[0139] 37. The lighting device according to any one or more combinations of 35-36 above and 38-40 below has a mounting part for mounting a night light on the inner surface of the base 2041 of the lamp holder.

[0140] 38. A lighting device comprising any one or more combinations of 36-37 above and 39-40 below, wherein a magnetic element is provided in the mounting section.

[0141] 39. A wireless charger is provided in the mounting section for a lighting device according to any one or more combinations of 36-38 above and 40 below.

[0142] 40. A lighting device according to any one or more combinations of 35-39 above, wherein an adjusting member is provided on the outer surface of the top component of the lamp holder for controlling the opening and closing of the light-emitting element and the light intensity.

[0143] 41. A method for illuminating using any one or more of the lighting devices described in 34-40 above, wherein a night light is installed at the mounting part of a lamp holder, and the light-emitting element is turned on or off and the light intensity is controlled by operating an adjusting member on the lamp holder.

[0144] 42. A method for illuminating using any one or more combinations of the above-described lighting devices, wherein the night light is separated from the lamp holder and the light-emitting element is turned on or off by flipping the night light.

[0145] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0146] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0147] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0148] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A night light (100), comprising: A shell (1) with an inner cavity (10); The light-emitting element (2) is disposed in the inner cavity (10); A first control component (3) is disposed within the inner cavity (10), the first control component (3) being configured to control the opening and closing of the light-emitting element (2) in response to the flipping state of the night light (100); and The second control component (4) is disposed within the inner cavity (10). The second control component (4) is configured to turn off the first control component (3) in a first state and turn on the first control component (3) in a second state.

2. The night light according to claim 1, characterized in that, The second control component (4) includes a Hall element (41), which is configured to switch the second control component (4) from a second state to a first state after the sensed magnetic field strength reaches a preset value.

3. The night light according to claim 2, characterized in that, The first control component (3) is located below the light-emitting element (2), and the second control component (4) is located below the first control component (3). The second control component (4) also includes a Hall circuit board (42), and the Hall element (41) is located on the side of the Hall circuit board (42) away from the first control component (3).

4. The night light according to claim 2, characterized in that, An attracting element (5) is provided inside the housing (1) to be attracted to a magnetic component used to provide a magnetic field. When the attracting element (5) is attracted to the magnetic component, the magnetic field strength sensed by the Hall element (41) reaches a preset value.

5. The night light according to claim 4, characterized in that, The attraction element (5) is a ferromagnetic metal part (51), and a hollow part (52) is provided in the ferromagnetic metal part (51), and the Hall element (41) is located in the hollow part (52).

6. The night light according to claim 4, characterized in that, The attracting element (5) is a magnet (53), and a wireless charging coil (61) is provided on the outside of the magnet (53). A wireless charging circuit board (62) electrically connected to the wireless charging coil (61) is provided on the side of the second control component (4) near the first control component (3).

7. The night light according to claim 6, characterized in that, Multiple Hall elements (41) are uniformly arranged circumferentially on the radial outer side of the wireless charging coil (61).

8. The night light according to claim 1, characterized in that, A telescopic assembly (7) is coaxially and movably disposed on the housing (1), and a charging port (15) is disposed on the radial sidewall of the telescopic assembly (7). The telescopic component (7) is configured such that the charging port (15) is located outside the housing (1) in the extended state and inside the housing (1) in the retracted state.

9. The night light according to claim 8, characterized in that, The telescopic component (7) includes: A fixing part (71) is fixedly installed inside the housing (1); A movable part (72) is movably disposed on the housing (1) along the axial direction, the charging port (15) is located on the radial sidewall of the movable part (72), and the movable part (72) is configured to selectively adapt to the fixed part (71) so as to switch between an extended state and a retracted state. An elastic element (73) is configured to apply a force to the moving part (72) to move the moving part (72) relative to the housing (1).

10. The night light according to claim 9, characterized in that, A first point (721) and a second point (722) are arranged sequentially from top to bottom within the movable part (72). A first guide groove (723) and a second guide groove (724) are also arranged within the movable part (72). Both ends of the first guide groove (723) and the second guide groove (724) are respectively connected to the first point (721) and the second point (722). A guide block (711) is provided on the fixing part (71), and the guide block (711) is configured to move along the first guide groove (723) and the second guide groove (724). The guide block (711) is configured to be located at the first point (721) in the extended state and at the second point (722) in the retracted state.

11. The night light according to claim 10, characterized in that, A first guide portion (725) is provided below the first point (721). The first guide portion (725) is configured to guide the guide block (711) to enter the first guide groove (723) when it moves downward from the first point (721) relative to the moving part (72). A second guide portion (726) is provided below the second point (722), and the second guide portion (726) is configured to guide the guide block (711) to enter the second guide groove (724) when it moves downward from the second point (722) relative to the moving portion (72).

12. The night light according to claim 11, characterized in that, The fixing part (71) includes: A fixed sleeve (712) is disposed inside the housing (1); An elastic rod (713) is provided, one end of which is connected to the fixed sleeve (712), and the other end of which is connected to the guide block (711).

13. The night light according to claim 12, characterized in that, The movable part (72) includes a movable sleeve (727) movably disposed in the fixed sleeve (712) along the axial direction, and the two ends of the elastic member (73) are respectively connected to the movable sleeve (727) and the fixed sleeve (712).

14. The night light according to claim 13, characterized in that, The movable part (72) includes a limiting sleeve (729) fixedly connected to the movable sleeve (727). The limiting sleeve (729) is configured to abut against the housing (1) in an extended state, thereby preventing the movable part (72) from detaching from the housing (1).

15. The night light according to claim 1, characterized in that, The housing (1) includes: Bottom cover (11); A lampshade (12) is disposed above the bottom cover (11) and sealed to the bottom cover (11), the inner cavity (10) being formed between the bottom cover (11) and the lampshade (12). A first annular component (111) is coaxially arranged on the upper side of the bottom cover (11), and an annular groove (120) adapted to the first annular component (111) is arranged on the lower side of the lampshade (12). A sealing component (121) is arranged in the annular groove (120), and the upper end of the first annular component (111) is sealed and abutted against the sealing component (121).

16. The night light according to claim 15, characterized in that, A contact portion (122) is provided at the lower part of the lampshade (12). A second annular member (123) and a third annular member (124) are provided sequentially from the inside to the outside at the lower part of the contact portion (122). The second annular member (123), the third annular member (124) and the contact portion (122) together define the annular groove (120). The housing (1) also includes an upper cover (13). A fastening portion (131) extending inward is provided at the lower part of the upper cover (13). The inner wall of the upper cover (13) contacts the outer wall of the contact portion (122). The fastening portion (131) extends between the contact portion (122) and the bottom cover (11). The radially inner end of the fastening portion (131) contacts the outer wall of the third annular member (124).

17. A lighting device (300) comprising a lamp holder (200) and a night light (100) according to claim 1 that can be mounted on the lamp holder (200).

18. The lighting device according to claim 17, characterized in that, The lamp holder (200) is configured in a generally C shape, and a mounting portion (205) is provided on the inner surface of the upper end and / or lower end of the lamp holder (200). At least one of a magnetic element (202) and a wireless charger (203) is provided in the mounting portion (205).

19. The lighting device according to claim 18, characterized in that, An adjustment element (206) is provided on the outer surface of the upper end of the lamp holder (200) for controlling the opening and closing of the light-emitting element (2) and the light intensity.

20. A method of illumination using the lighting device (300) according to claim 17, comprising the steps of: The night light (100) is installed at the mounting part (205) of the lamp holder (200), and the light-emitting element (2) is turned on or off and its light intensity is controlled by operating the adjusting part on the lamp holder (200); or Separate the night light (100) from the lamp holder (200), and control the light-emitting element (2) to turn on or off by flipping the night light (100).

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