Magnetic base and charging device

Abstract

This application discloses a magnetic charging base and a charging device. The magnetic charging base includes: a base and a support cover movably connected to one end of the base, with an accommodating space between the base and the support cover, and a magnetic element disposed inside the accommodating space; an elastic structure disposed between the base and the support cover, wherein when the elastic structure is in its natural state, the support cover is in a first position relative to the base; and a push switch including a pressing part and a locking structure. The pressing part is disposed on the base or the support cover and is used to receive pressing force. The locking structure is disposed between the base and the support cover, and the push switch is used to connect or disconnect the locking structure under the action of pressing force. When the locking structure is connected, the support cover is in a second position relative to the base. When the locking structure is disconnected, the support cover returns to the first position under the action of the elastic structure. The distance between the support cover and the base when the support cover is in the first position is greater than the distance between the support cover and the base when the support cover is in the second position.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, specifically relating to a magnetic base and charging device. Background Technology

[0002] With scientific development and technological advancements, electronic devices such as mobile phones, wearable devices, and laptops are increasingly widely used. Wireless charging technology and devices can improve the user experience when charging these electronic devices, and are therefore widely welcomed by users.

[0003] Wireless charging devices typically achieve charging through magnetic induction. For example, in mobile phone charging, compared to the current mainstream data cable charging method, wireless charging based on the principle of electromagnetic induction has gradually matured. Wireless charging is favored by consumers due to its portability, and its user base is constantly growing, leading to rapid development and application. Currently, wireless charging mainly includes ordinary contact, clip-on contact, and magnetic contact methods, with magnetic contact being the most widely used. Magnetic wireless chargers usually require magnetic components with opposite magnetic poles on both the charger and the electronic device. This utilizes the attraction between opposite magnetic poles to align the transmitting and receiving charging coils, improving placement accuracy and charging efficiency, offering significant advantages over ordinary wireless chargers.

[0004] In the process of developing this application, the inventors discovered that the prior art has at least the following problems: In practical applications, the disadvantages of magnetic chargers also seriously affect the consumer experience. That is, magnetic chargers are usually aligned with and effectively contact and adsorbed with mobile phones and other devices, which causes the need to be forcibly separated by both hands after adsorption, making it inconvenient to take them out. Summary of the Invention

[0005] This application aims to provide a magnetic charging base and charging device to solve the problem that existing magnetic chargers usually require alignment and effective contact with devices such as mobile phones, resulting in the need to forcefully separate them with both hands after they are attached, which is inconvenient to take out.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] In a first aspect, embodiments of this application propose a magnetic holder, comprising:

[0008] A base and a support cover movably connected to one end of the base, with an accommodating space between the base and the support cover, and a magnetic component inside the accommodating space;

[0009] An elastic structure is disposed between the base and the support cover. When the elastic structure is in its natural state, the support cover is in a first position relative to the base.

[0010] A push-button switch includes a pressing part and a locking structure. The pressing part is disposed on the base or the support cover and is used to receive pressing force. The locking structure is disposed between the base and the support cover. The push-button switch is used to connect or disconnect the locking structure under the pressing force. When the locking structure is connected, the support cover is in a second position relative to the base. When the locking structure is disconnected, the support cover returns to the first position under the action of the elastic structure.

[0011] Wherein, the distance between the support cover and the base when the support cover is in the first position is greater than the distance between the support cover and the base when the support cover is in the second position.

[0012] According to the magnetic base of the present application embodiment, the side wall of the support cover is inserted into the base, and the locking structure is disposed between the side wall of the support cover and the side wall of the base;

[0013] Alternatively, the bottom inner side of the base is provided with a guide groove, the inner side of the support cover is provided with a guide post, the first end of the guide groove is away from the bottom of the base, the second end of the guide groove is connected to the bottom of the base, the guide post is inserted into the first end of the guide groove, and the clamping structure is provided between the inner wall of the guide groove and the guide post.

[0014] Alternatively, the base has a guide groove on its inner bottom side, the support cover has a guide post on its inner side, the first end of the guide groove is away from the bottom of the base, the second end of the guide groove is connected to the bottom of the base, the guide post is inserted into the first end of the guide groove, the push switch also includes a stop member, the stop member is disposed inside the guide groove, the elastic structure is disposed inside the guide groove and the stop member is supported by the elastic structure, the guide post is supported by the stop member, and the locking structure is disposed between the inner wall of the guide groove and the stop member.

[0015] According to the magnetic suction seat of this application embodiment, when the clamping structure is disposed between the inner wall of the guide groove and the stop member, the support cover is the pressing part;

[0016] The locking structure includes multiple limiting protrusions on the inner wall of the first end of the guide groove and multiple sliding protrusions on the outer wall of the stop member. The multiple limiting protrusions have multiple gaps along the circumference of the guide groove. The multiple gaps include a first gap and a second gap that are alternately arranged along the circumference. The first gap is matched and inserted with the sliding protrusion. The first end of the limiting protrusion is away from the bottom of the base, and the second end of the limiting protrusion is close to the bottom of the base. The end face of the second end of the limiting protrusion is set as a first inclined surface, and the end face of the sliding protrusion facing the support cover is set as a second inclined surface. The first inclined surface and the second inclined surface match each other so that when the sliding protrusion slides along the first gap to the end face of the second end of the limiting protrusion under the action of the pressing pressure, the sliding protrusion rotates along the first inclined surface under the elastic force of the elastic structure.

[0017] The second gap is provided with a blocking structure, which is used to prevent the sliding protrusion from moving along the second gap toward the first end of the guide groove.

[0018] According to the magnetic base of this application embodiment, the blocking structure is specifically as follows: the inner wall of the guide groove is provided with a transition protrusion at the second gap, the first end of the transition protrusion is away from the bottom of the base, the second end of the transition protrusion is close to the bottom of the base, the end face of the second end of the transition protrusion is set as a third inclined surface, the third inclined surface extends and connects with the side of the first inclined surface close to the support cover, the width of the transition protrusion along the circumferential direction of the guide groove is the same as the width of the second gap, or the width of the transition protrusion is less than the width of the second gap, and the difference between the two widths is less than the width of the sliding protrusion;

[0019] Alternatively, the width of the second gap along the circumferential direction of the guide groove is smaller than the width of the sliding protrusion.

[0020] According to an embodiment of this application, the magnetic suction seat has a first shaft segment and a second shaft segment along the axial direction. The cross-sectional dimension of the first shaft segment is smaller than that of the second shaft segment. A stepped surface is formed between the first shaft segment and the second shaft segment on the outer wall of the stop. The first shaft segment is inserted into the guide post, and the guide post is supported on the stepped surface. The elastic structure is disposed inside the second shaft segment, and the sliding protrusion is disposed on the outer wall of the second shaft segment.

[0021] According to the magnetic suction base of this application embodiment, a guide protrusion is provided on the outer wall of the guide post at the location corresponding to the gap between the guide post and the limiting protrusion.

[0022] According to the magnetic base of this application embodiment, a tooth structure is provided between the stepped surface and the end face of the guide post. The tooth structure includes multiple sets of teeth along the circumference of the stepped surface and the guide post. Each set of teeth includes a corresponding first tooth and a second tooth. The first tooth is provided on the stepped surface, and the second tooth is provided on the end face of the guide post. The first tooth and the second tooth are staggered, and the direction from the tooth peak of the first tooth to the tooth valley of the second tooth is consistent with the rotation direction of the sliding protrusion.

[0023] According to an embodiment of this application, the magnetic holder has a raised edge on the outer wall of the end of the stop member away from the support cover.

[0024] According to an embodiment of this application, the elastic structure of the magnetic base includes a spring and a fixing post. The bottom of the base has an opening corresponding to the guide groove. A fixing plate is detachably connected to the opening. The fixing post is detachably connected to the fixing plate. The spring is sleeved on the fixing post.

[0025] Secondly, embodiments of this application provide a charging device, including:

[0026] The magnetic holder is any of the magnetic holders described above;

[0027] The charging coil is located inside the accommodating space of the magnetic base.

[0028] In the embodiments of this application, by setting an elastic structure and a push switch between the base and the support cover, the support cover can be switched between two positions by pressing. Thus, by adjusting the distance between the support cover and the base, the magnetic attraction force of the magnetic base on the device to be fixed can be adjusted, thereby realizing the switching between the magnetic base in the adsorption state and the pick-up state. In the pick-up state, the device to be fixed can be easily and conveniently removed. The state switching of the magnetic base can be achieved by pressing, which is simple to operate and can be done with one hand.

[0029] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is an overall schematic diagram of the magnetic base according to an embodiment of this application;

[0032] Figure 2 This is a cross-sectional schematic diagram of the magnetic holder according to an embodiment of this application;

[0033] Figure 3This is an exploded view of the magnetic holder according to an embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the base according to an embodiment of this application;

[0035] Figure 5 This is a partial schematic diagram of the guide groove on the base according to an embodiment of this application;

[0036] Figure 6 This is a first structural schematic diagram of the stop member according to an embodiment of this application;

[0037] Figure 7 This is a schematic diagram of the second structure of the stop member according to an embodiment of this application;

[0038] Figure 8 This is a perspective view of the guide groove according to an embodiment of this application;

[0039] Figure 9 This is a first unfolded schematic diagram of the locking structure in the unlocked state according to an embodiment of this application;

[0040] Figure 10 This is a first unfolded schematic diagram of the clamping structure in the clamping state according to an embodiment of this application;

[0041] Figure 11 This is a second unfolded schematic diagram of the clamping structure according to an embodiment of this application;

[0042] Figure 12 This is a third unfolded schematic diagram of the clamping structure according to an embodiment of this application;

[0043] Figure 13 This is a fourth unfolded schematic diagram of the clamping structure according to an embodiment of this application;

[0044] Figure 14 This is a schematic diagram of the overall structure of the support cover according to an embodiment of this application;

[0045] Figure 15 This is a cross-sectional schematic diagram of the guide post on the support cover according to an embodiment of this application;

[0046] Figure 16 This is a schematic diagram of the tooth structure between the guide post and the stop member according to an embodiment of this application;

[0047] Figure 17 This is a partial schematic diagram of the tooth structure between the guide post and the stop member according to an embodiment of this application;

[0048] Figure 18 This is a structural schematic diagram of the fixed column according to an embodiment of this application;

[0049] Figure 19This is a structural schematic diagram of the fixing plate according to an embodiment of this application.

[0050] Figure label:

[0051] 1: Base; 2: Support cover; 3: Magnetic component; 301: Mounting position; 4: Guide groove; 401: Limiting protrusion; 4011: First inclined surface; 402: First gap; 403: Second gap; 404: Transition protrusion; 5: Guide post; 501: Guide protrusion; 502: Second tooth; 5021: Tooth valley of the second tooth; 6: Stop; 601: First shaft segment; 602: Second shaft segment; 603: Sliding protrusion; 6031: Second inclined surface; 604: First tooth; 6041: Tooth peak of the first tooth; 605: Protruding edge; 7: Spring; 8: Fixing post; 9: Fixing plate. Detailed Implementation

[0052] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0053] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0054] In the description of this application, it should be understood that the terms "length", "upper", "lower", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] The following is combined Figures 1-19 This application describes a magnetic charging base and charging device according to embodiments thereof.

[0057] like Figure 1 and Figure 2 As shown, according to some embodiments of this application, a magnetic holder includes: a base 1 and a support cover 2 movably connected to one end of the base 1. A receiving space exists between the base 1 and the support cover 2, and a magnetic element 3 is disposed within the receiving space. In this embodiment, the support cover 2 and the base 1 are movably connected; specifically, the support cover 2 is connected to the base 1 at an adjustable distance relative to the base 1. The magnetic element 3 is disposed within the receiving space formed by the support cover 2 and the base 1, enabling the magnetic holder to have a magnetic attraction and fixing function. The support cover 2 is used to support the device to be fixed; that is, the device to be fixed can be placed on the support cover 2, and then the magnetic element 3 is used to attract the device to the magnetic holder.

[0058] The magnetic base in this embodiment also includes an elastic structure disposed between the base 1 and the support cover 2. When the elastic structure is in its natural state, the support cover 2 is in a first position relative to the base 1. The elastic structure is supported between the base 1 and the support cover 2. When the support cover 2 moves away from the first position relative to the base 1, the elastic structure will undergo elastic deformation, generating a restoring force that drives the support cover 2 back to the first position.

[0059] The magnetic base in this embodiment also includes a push switch, comprising a pressing part and a locking structure. The pressing part is disposed on the base 1 or the support cover 2 and is used to receive pressing force. The locking structure is disposed between the base 1 and the support cover 2. The push switch is used to connect or disconnect the locking structure under the pressing force. When the locking structure is connected, the support cover 2 is in a second position relative to the base 1. When the locking structure is disconnected, the support cover 2 is reset to the first position under the action of the elastic structure.

[0060] In this embodiment, the push-button switch enables the switching of component states via pressing, specifically switching the state of the locking structure. Initially, the support cover 2 is in the first position. Applying pressure to the pressing part connects the locking structure between the base 1 and the support cover 2, placing the support cover 2 in the second position relative to the base 1. Applying pressure again, due to the switching function of the push-button switch, disengages the locking structure. At this point, the support cover 2 and base 1 are no longer restricted by the locking structure, and the support cover 2 returns to the first position under the elastic restoring force of the elastic structure. Thus, by applying pressure, the support cover 2 can be switched between the first and second positions relative to the base 1.

[0061] In this configuration, the distance between the support cover 2 and the base 1 when the support cover 2 is in the first position is greater than the distance between the support cover 2 and the base 1 when the support cover 2 is in the second position. That is, in the first position, the support cover 2 is farther from the base 1; in the second position, the support cover 2 is closer to the base 1. Similarly, in the first position, the support cover 2 is farther from the magnetic component 3; in the second position, the support cover 2 is closer to the magnetic component 3. Consequently, in the first position, the device to be fixed supported by the support cover 2 is farther from the magnetic component 3, and the magnetic force exerted by the magnetic component 3 on the device to be fixed is weaker; in the second position, the device to be fixed supported by the support cover 2 is closer to the magnetic component 3, and the magnetic force exerted by the magnetic component 3 on the device to be fixed is stronger.

[0062] In this embodiment, the distance between the support cover 2 and the base 1 can be adjusted by pressing, allowing the magnetic base to have two states with different magnetic forces under the pressure, thus meeting two functional requirements. When the magnetic base needs to fix the device to be fixed, the pressing part can be pressed to connect the locking structure. The support cover 2 is in the second position, closer to the base 1, with stronger magnetism, achieving stable magnetic fixation. When it is necessary to remove the device to be fixed from the magnetic base, the pressing part can be pressed to release the locking structure. The support cover 2 returns to the first position, farther from the base 1, with weaker magnetism, allowing the device to be fixed to be easily removed.

[0063] According to the embodiments of this application, the magnetic holder, by setting an elastic structure and a push switch between the base 1 and the support cover 2, can switch the support cover 2 between two positions by pressing. Thus, by adjusting the distance between the support cover 2 and the base 1, the magnetic force of the magnetic holder on the device to be fixed can be adjusted, thereby realizing the switching between the magnetic holder in the adsorption state and the pick-up state. In the pick-up state, the device to be fixed can be easily and conveniently removed. The state switching of the magnetic holder can be realized by pressing, which is simple to operate and can be operated with one hand.

[0064] Furthermore, the magnetic component 3 can be an electromagnet or a permanent magnet, and the specific type is not limited, as long as it can generate magnetic force to magnetically attract and fix the belt fixing device.

[0065] According to some embodiments of the magnetic base of this application, the side wall of the support cover 2 is inserted inside the base 1, such as... Figure 2 As shown, this allows the support cover 2 to move up and down relative to the base 1. The locking structure is located between the side wall of the support cover 2 and the side wall of the base 1; or, refer to... Figure 2 and Figure 3 The base 1 has a guide groove 4 on its inner bottom side, and the support cover 2 has a guide post 5 on its inner side. The first end of the guide groove 4 is away from the bottom of the base 1, and the second end of the guide groove 4 is connected to the bottom of the base 1. The guide post 5 is inserted into the first end of the guide groove 4. The clamping structure is located between the inner wall of the guide groove 4 and the guide post 5; or, refer to Figure 2 and Figure 3 The base 1 has a guide groove 4 on its inner bottom side, and the support cover 2 has a guide post 5 on its inner side. The first end of the guide groove 4 is away from the bottom of the base 1, and the second end of the guide groove 4 is connected to the bottom of the base 1. The guide post 5 is inserted into the first end of the guide groove 4. The push switch also includes a stop 6, which is located inside the guide groove 4. The elastic structure is located inside the guide groove 4, and the stop 6 is supported by the elastic structure. The guide post 5 is supported by the stop 6. The locking structure is located between the inner wall of the guide groove 4 and the stop 6.

[0066] According to some embodiments of this application, the magnetic base uses a locking structure to achieve a detachable connection between the base 1 and the support cover 2. This embodiment provides three specific configuration schemes for the locking structure. The first scheme involves setting a locking structure between the side wall of the support cover 2 and the side wall of the base 1, thus establishing a detachable connection structure between them. A push-button switch can control the connection and release of this structure by pressing, thereby switching the support cover 2 between a first position and a second position. The second scheme involves setting a guide groove 4 on the inner side of the bottom of the base 1 and a guide post 5 on the inner side of the support cover 2. The first end of the guide groove 4 is close to the support cover 2, and the second end is away from the support cover 2. The guide post 5 is inserted into the first end of the guide groove 4 and can move up and down along the guide groove 4, establishing a detachable connection structure between the guide post 5 and the guide groove 4. A push-button switch can control the connection and release of this structure by pressing, thereby switching the support cover 2 between a first position and a second position.

[0067] Furthermore, a third option involves setting a guide groove 4 on the inner bottom side of the base 1 and a guide post 5 on the inner side of the support cover 2. The first end of the guide groove 4 is close to the support cover 2, and the second end is away from the support cover 2. The guide post 5 is inserted into the first end of the guide groove 4 and can move up and down along the guide groove 4. Additionally, a stop 6 is set inside the guide groove 4, and an elastic structure is also set inside the guide groove 4. The stop 6 is supported on the elastic structure, and the support cover 2 is supported on the stop 6. That is, by pressing the support cover 2, the pressing force can be sequentially transmitted to the stop 6 and the elastic structure. A detachable connection structure can be established between the stop 6 and the guide groove 4. A press switch can control the connection and release of this structure by pressing, thereby switching the support cover 2 between a first position and a second position. The stop 6 can be connected to the guide groove 4 through various forms of locking structures, which allows the support cover 2 to move only up and down relative to the base 1, improving the pressing experience.

[0068] Specifically, when the locking structure is the first configuration, the locking structure can be a hook and slot structure set between the side wall of the support cover 2 and the side wall of the base 1. For example, a hook can be set on the side wall of the support cover 2, and a corresponding slot can be set on the side wall of the base 1. The elastic structure can be set at any position between the base 1 and the support cover 2, with the purpose of supporting the support cover 2 in the first position. Initially, the support cover 2 is in the first position, and the support cover 2 can be used as a pressing part. By pressing the support cover 2, the hook and the slot are connected, and the support cover 2 is switched to the second position. At this time, the push switch can also include a push structure and a transmission structure. A pressing part can also be set in other parts. The pressing part is connected to the push structure through the transmission structure. The push structure can be connected to the support cover 2. By pressing the pressing part, the pressing force can be transmitted to the push structure through the transmission structure. The push structure is used to generate an upward thrust on the support cover 2 under the action of the pressing force, so that the hook and the slot are disengaged and the support cover 2 returns to the first position.

[0069] Furthermore, multiple sets of corresponding hooks and slots can be provided circumferentially along the base 1 and the support cover 2, the specific number of which is not limited. The specific structure of the hooks and slots is not limited, as long as it can achieve a detachable locking connection. The transmission structure can be a linkage structure or a lever structure, etc., the specifics are not limited, as long as it can achieve the transmission of pressing pressure. The pushing structure can be a push rod, etc., the specifics are not limited, as long as it can transmit the pressing pressure to the support cover 2.

[0070] Furthermore, when the locking structure is configured in the second way, it can also be a hook-and-slot structure located between the side wall of the guide post 5 and the side wall of the guide groove 4. The control principle of the push switch is similar to the above scheme and will not be described again. When the locking structure is configured in the third way, it can also be a hook-and-slot structure located between the stop 6 and the guide groove 4. The control principle of the push switch is similar to the above scheme and will not be described again.

[0071] According to some embodiments of the magnetic holder of this application, in this embodiment, the clamping structure is disposed between the inner wall of the guide groove 4 and the stop member 6. In this case, the support cover 2 is the pressing part; the clamping structure includes a plurality of limiting protrusions 401 disposed on the inner wall of the first end of the guide groove 4 and a plurality of sliding protrusions 603 disposed on the outer wall of the stop member 6. Reference Figure 4 Multiple limiting protrusions 401 are spaced apart circumferentially along the guide groove 4; the limiting protrusions 401 can extend axially along the guide groove 4. The multiple limiting protrusions 401 have multiple gaps circumferentially along the guide groove 4. (Reference) Figure 5 The plurality of gaps include a first gap 402 and a second gap 403 arranged alternately along the circumference, wherein the first gap 402 is matched and inserted with the sliding protrusion 603.

[0072] Multiple gaps are formed around the guide groove 4 by a plurality of limiting protrusions 401, and these gaps are continuous in the axial direction of the guide groove 4. These gaps are divided into a first gap 402 and a second gap 403, which alternate sequentially in the circumferential direction. A sliding protrusion 603 is provided on the outer wall of the stop 6 at a position corresponding to the first gap 402. The sliding protrusion 603 can be inserted into the first gap 402 and can move up and down along the first gap 402.

[0073] Further, refer to Figure 5 The first end of the limiting protrusion 401 is far from the bottom of the base 1, and the second end of the limiting protrusion 401 is close to the bottom of the base 1. The end face of the second end of the limiting protrusion 401 is set as a first inclined surface 4011. (Refer to...) Figure 6 and Figure 7The end face of the sliding protrusion 603 facing the support cover 2 is designated as a second inclined surface 6031, and the first inclined surface 4011 and the second inclined surface 6031 are matched. That is, the inclination direction and inclination degree of the first inclined surface 4011 and the second inclined surface 6031 are the same. When the first end of the sliding protrusion 603 is in contact with the second end of the limiting protrusion 401, that is, when the sliding protrusion 603 is located below the limiting protrusion 401, the first inclined surface 4011 and the second inclined surface 6031 can fit together in contact. This allows the sliding protrusion 603 to slide along the first gap 402 to the second end face of the limiting protrusion 401 under the action of the pressing pressure, and then rotate along the first inclined surface 4011 under the elastic force of the elastic structure.

[0074] Specifically, the first end of the limiting protrusion 401 faces the support cover 2, and the second end of the limiting protrusion 401 faces the base 1. The first end of the sliding protrusion 603 faces the support cover 2, and the second end of the sliding protrusion 603 faces the base 1. The initial sliding protrusion 603 can be inserted into the first gap 402. By pressing the support cover 2, the pressing force can be transmitted to the stop member 6 through the support cover 2 and the guide post 5. The sliding protrusion 603 will slide downward along the first gap 402. When the sliding protrusion 603 slides to the second end face of the limiting protrusion 401, after the pressing force disappears, the elastic structure will apply an upward elastic force to the stop member 6. This elastic force will generate an upward thrust along the first inclined surface 4011 and the second inclined surface 6031, so that the sliding protrusion 603 can move upward along the first inclined surface 4011 and at the same time generate a certain rotation in the circumferential direction. The rotation direction of the sliding protrusion 603 is from the side of the first inclined surface 4011 near the base 1 to the side of the first inclined surface 4011 near the support cover 2.

[0075] Furthermore, the second gap 403 is provided with a blocking structure, which is used to prevent the sliding protrusion 603 from moving along the second gap 403 toward the first end of the guide groove 4. That is, when the sliding protrusion 603 rotates along the first inclined surface 4011, the sliding protrusion 603 will rotate to the second gap 403, where a blocking structure can be provided to prevent the sliding protrusion 603 from moving upward. In the rotation direction of the sliding protrusion 603, the limiting protrusion 401 located in front of the sliding protrusion 603 blocks the continued rotation of the sliding protrusion 603, and the blocking structure blocks the upward movement of the sliding protrusion 603, thereby fixing the sliding protrusion 603 at the blocking structure. The sliding protrusion 603 in this position can be closer to the base 1 than the initial position of the sliding protrusion 603, thereby realizing the fixation of the support cover 2 in the second position, which is convenient for magnetic fixation of the device to be fixed.

[0076] Furthermore, the support cover 2 can be pressed again. Under the pressure, the sliding protrusion 603 moves downward. When the sliding protrusion 603 moves to the lower end face of the front limiting protrusion 401, the pressure disappears, and the sliding protrusion 603 will rotate again along the first inclined surface 4011 of the lower end face of the front limiting protrusion 401 until it rotates into the first gap 402. Under the elastic restoring force of the elastic structure, the sliding protrusion 603 will return to the initial position, thereby causing the support cover 2 to return to the first position. At this time, the support cover 2 is far away from the magnetic component 3, making it easy to remove the device to be fixed on the support cover 2.

[0077] Furthermore, the first inclined surfaces 4011 at the ends of the multiple limiting protrusions 401 are in the same upward inclination direction around the guide groove 4.

[0078] According to some embodiments of the present application, the blocking structure of the magnetic base is specifically as follows: the inner wall of the guide groove 4 is provided with a transition protrusion 404 at the second gap 403. The first end of the transition protrusion 404 is away from the bottom of the base 1, and the second end of the transition protrusion 404 is close to the bottom of the base 1. The end face of the second end of the transition protrusion 404 is set as a third inclined surface. The third inclined surface extends and connects with the side of the first inclined surface 4011 close to the support cover 2. The width of the transition protrusion 404 along the circumference of the guide groove 4 is the same as the width of the second gap 403, or the width of the transition protrusion 404 is less than the width of the second gap 403, and the difference between the two widths is less than the width of the sliding protrusion 603.

[0079] Alternatively, the width of the second gap 403 along the circumference of the guide groove 4 is smaller than the width of the sliding protrusion 603.

[0080] This embodiment provides two specific configuration schemes for the blocking structure. The first scheme involves setting a transition protrusion 404 in the second gap 403. The transition protrusion 404 is a blocking structure, and both the transition protrusion 404 and the limiting protrusion 401 protrude from the inner wall of the guide groove 4, which can prevent the sliding protrusion 603 from moving upward. The first end of the transition protrusion 404 faces the support cover 2, and the second end of the transition protrusion 404 faces the base 1.

[0081] Further, refer to Figure 8 and Figure 9The second end face of the transition protrusion 404 can be configured as a third inclined surface. This third inclined surface extends along the first inclined surface 4011 of the rear-mounted limiting protrusion 401, meaning the third inclined surface connects to the side of the first inclined surface 4011 near the support cover 2 and extends along the first inclined surface 4011. This configuration ensures that when the sliding protrusion 603 slides along the first inclined surface 4011, it continues to slide continuously along the third inclined surface, improving the smoothness of the press-to-switch process. Furthermore, the width of the transition protrusion 404 can be the same as the width of the second gap 403, i.e., the width of the transition protrusion 404 can be the same as the width of the second gap 403. Figure 9 As shown. At this time, when the sliding protrusion 603 slides along the third inclined surface to the front limiting protrusion 401, the sliding protrusion 603 is fixed, thus fixing the support cover 2 in the second position, as shown. Figure 10 As shown. The width of the transition protrusion 404 can also be smaller than the width of the second gap 403, so that there is a gap between the transition protrusion 404 and the two side limiting protrusions 401, and this gap is smaller than the width of the sliding protrusion 603, such as... Figure 11 As shown, it can also prevent the sliding protrusion 603 from moving upward, thus fixing the support cover 2 in the second position.

[0082] Furthermore, a second configuration of the blocking structure involves setting the width of the second gap 403 to be smaller than the width of the sliding protrusion 603, thereby preventing the sliding protrusion 603 from moving upward, such as... Figure 12 As shown, the sliding protrusion 603 slides along the first inclined surface 4011 until it abuts against the limiting protrusion 401 in front, thereby fixing the support cover 2 in the second position.

[0083] Furthermore, the width of the second gap 403 can also be set to zero. In this case, another limiting protrusion 401 is immediately connected in front of the limiting protrusion 401, making the second end face of the limiting protrusion 401 have a stepped structure, such as... Figure 13 As shown, the stepped structure can also prevent the sliding protrusion 603 from moving upward and forward, thus fixing the support cover 2 in the second position.

[0084] Specifically, Figures 9 to 13 This is a schematic diagram of the guide groove 4 when it is unfolded. The direction from right to left in the diagram is the rotation direction of the sliding protrusion 603. This diagram is only to illustrate the specific working principle of the clamping structure and does not limit the specific settings of the structure.

[0085] Furthermore, the blocking structure can also be other structures, such as a stop block set in the second gap 403. The lower end face of the stop block, i.e., the end face near the base 1, does not need to be a slope. The stop block only needs to block the upward movement of the sliding protrusion 603 in the second gap 403. The specific shape and placement of the stop block are not limited. The stop block can block the upward movement of the sliding protrusion 603, and the front limiting protrusion 401 can block the forward movement of the sliding protrusion 603, thereby fixing the support cover 2 in the second position. When it is necessary to switch the position of the support cover 2, press the support cover 2 to press the sliding protrusion 603 below the front limiting protrusion 401.

[0086] The specific configuration of the clamping structure provided in this embodiment, through the cooperation of the first inclined surface 4011 and the second inclined surface 6031, and the setting of the blocking structure, enables the sliding protrusion 603 and the support cover 2 to switch between the first position and the second position under the action of pressing pressure.

[0087] According to some embodiments of the present application, the magnetic holder is referred to... Figure 6 and Figure 7 The stop member 6 has a first shaft segment 601 and a second shaft segment 602 along the axial direction. The cross-sectional dimension of the first shaft segment 601 is smaller than that of the second shaft segment 602. A stepped surface is formed between the first shaft segment 601 and the second shaft segment 602 on the outer wall of the stop member 6. The first shaft segment 601 is inserted into the guide post 5. The guide post 5 is supported by the stepped surface. The elastic structure is provided inside the second shaft segment 602. The sliding protrusion 603 is provided on the outer wall of the second shaft segment 602.

[0088] In this embodiment, the first shaft segment 601 can be inserted and fitted with the guide post 5 to achieve the supporting connection of the stop 6 to the support cover 2; the second shaft segment 602 facilitates the installation of a sliding protrusion 603 to cooperate with the limiting protrusion 401 on the inner wall of the guide groove 4 to form a locking structure. The second shaft segment 602 can be a hollow structure, which facilitates the installation of an elastic structure. The elastic structure inside the second shaft segment 602 can also provide a supporting connection for the stop 6. This arrangement of the stop 6 and its cooperation with the guide post 5, guide groove 4, and elastic element is relatively compact, which helps to reduce the installation space.

[0089] Furthermore, the specific structure of the stop 6 can also be other. The supporting connection structure between the stop 6 and the support cover 2, as well as the supporting connection structure between the elastic structure and the stop 6, can also be other structures. For example, the stop 6 can only be provided with the second shaft section 602, and the guide post 5 can be directly supported on the end face of the second shaft section 602. Alternatively, the second shaft section 602 can not be a hollow structure, and the elastic structure can be provided below the second shaft section 602. The specific structure of the stop 6 is not limited.

[0090] According to some embodiments of the present application, the magnetic holder is referred to... Figure 14 and Figure 15 A guide protrusion 501 is provided on the outer wall of the guide post 5 at a position corresponding to the gap between the limiting protrusion 401 and the guide protrusion 401. The guide protrusion 501 is inserted into the gap between the limiting protrusions 401, so that the support cover 2 can move up and down relative to the base 1, preventing the support cover 2 from rotating. Thus, during the pressing and switching position process, the support cover 2 only moves up and down, which helps to improve the stability of the support cover 2 in supporting the device to be fixed and improves the pressing experience. That is, during the pressing and switching position process, only the stop 6 rotates. A smooth coating can be provided on the relatively sliding contact surface during the switching position process to reduce sliding friction and achieve smooth sliding, so as to achieve a smooth switching position.

[0091] Furthermore, the thickness of the transition protrusion 404 protruding from the inner wall of the guide groove 4 is less than the thickness of the limiting protrusion 401 protruding from the inner wall of the guide groove 4; the guide protrusion 501 is provided on the outer wall of the guide post 5 at positions corresponding to the first gap 402 and the second gap 403, and the guide protrusion 501 matches and contacts the transition protrusion 404. That is, the number of guide protrusions 501 can be set to be the same as the number of gaps between the limiting protrusions 401, and the guide protrusions 501 are inserted into the gaps in a one-to-one correspondence. In this case, the outer diameter of the guide protrusion 501 matches the inner diameter of the transition protrusion 404.

[0092] Furthermore, the thickness of the transition protrusion 404 protruding from the inner wall of the guide groove 4 can also be the same as the thickness of the limiting protrusion 401 protruding from the inner wall of the guide groove 4. In this case, a guide protrusion 501 can be provided at the corresponding position of the guide post 5 and the first gap 402. The thickness of the transition protrusion 404 is not limited.

[0093] According to some embodiments of the present application, the magnetic holder is referred to... Figure 16 and Figure 17 A toothed structure is provided between the stepped surface and the end face of the guide post 5. The toothed structure includes multiple sets of teeth along the circumference of the stepped surface and the guide post 5. Each set of teeth includes a corresponding first tooth 604 and a second tooth 502. The first tooth 604 is provided on the stepped surface, and the second tooth 502 is provided on the end face of the guide post 5.

[0094] In this embodiment, multiple second teeth 502 are sequentially connected along the circumference of the guide post 5 on the end face of the guide post 5; multiple first teeth 604 are sequentially connected along the circumference of the step surface. The first teeth 604 and second teeth 502 are arranged in a one-to-one correspondence, and the corresponding first teeth 604 and second teeth 502 are staggered. That is, the tooth valley and tooth peak do not make contact with each other. The tooth valley is the lowest point on the tooth, and the tooth peak is the highest point on the tooth. The tooth valley 5021 of the second tooth 502 is the concave bottom of the second tooth 502, and the tooth peak 6041 of the first tooth 604 is the protruding top of the first tooth 604. The first teeth 604 and the second teeth 502 are staggered, and the direction from the tooth peak 6041 of the first tooth to the tooth valley 5021 of the second tooth is consistent with the rotation direction of the sliding protrusion 603. Along the rotation direction of the sliding protrusion 603, there is a gap between the tooth valley 5021 of the second tooth and the tooth peak 6041 of the first tooth, and when the sliding protrusion 603 rotates, the tooth peak 6041 of the first tooth rotates toward the tooth valley 5021 of the second tooth. This ensures that when the sliding protrusion 603 needs to rotate along the first inclined surface 4011 or the third inclined surface, there is a gap in front of the first tooth 604 along the rotation direction, which facilitates the smooth rotation of the stop 6 and enables the smooth switching of the position of the support cover 2.

[0095] Furthermore, the interlacing clearance between the first tooth 604 and the second tooth 502 is not limited and can be flexibly set according to actual conditions. That is, for the corresponding first tooth 604 and second tooth 502, the clearance between the tooth valley 5021 of the second tooth 502 and the tooth peak 6041 of the first tooth 604 is not limited. Furthermore, the first tooth 604 includes two intersecting planes, and the included angle between the two planes can be an obtuse angle; the second tooth 502 also includes two intersecting planes, and the included angle between the two planes can be an obtuse angle; that is, the tooth surface of the tooth structure is relatively flat to smoothly realize the rotation of the stop 6.

[0096] Furthermore, the second inclined surface 6031 on the sliding protrusion 603 and the tooth surface of the connecting first tooth 604 can be coplanar; for example Figure 7 As shown. The end face of the guide protrusion 501 near the base 1 can also be set as an inclined surface, which can be coplanar with the tooth surface of the second tooth 502 that is connected, such as... Figure 14 As shown.

[0097] According to some embodiments of the present application, the magnetic holder is referred to... Figure 6 The stop 6 has a raised edge 605 on the outer wall of the end away from the support cover 2. The raised edge 605 can be located on the side of the limiting protrusion 401 facing the base 1, so that the raised edge 605 can prevent the stop 6 from dislodging from the first end of the guide groove 4.

[0098] Furthermore, a rib structure or similar structure may be provided between the side wall of the support cover 2 and the side wall of the base 1 to prevent the support rod from coming out of the base 1. The specific structure is not limited.

[0099] According to some embodiments of the present application, the magnetic holder is referred to... Figure 2 and Figure 3 The elastic structure includes a spring 7 and a fixing post 8. The bottom of the base 1 has an opening corresponding to the guide groove 4. A fixing plate 9 is detachably connected to the opening, and the fixing post 8 is detachably connected to the fixing plate 9. The spring 7 is sleeved on the fixing post 8. The elastic structure is the spring 7, which is low-cost and easy to install. The fixing post 8 limits the vertical movement of the spring 7. The fixing post 8 and fixing plate 9 are detachable, allowing the spring 7, fixing post 8, and fixing plate 9 to be installed from the second end of the guide groove 4, facilitating the installation and assembly of the magnetic base. Other elastic structures, such as elastic blocks, can also be used, with the aim of generating restoring force through elasticity; no specific limitation is made.

[0100] refer to Figure 8 and Figure 9 The fixing column 8 may have an installation edge on its side wall, and the fixing plate 9 may have a through hole for the fixing column 8 to pass through. The installation edge of the fixing column 8 can be assembled and fixed to the fixing plate 9, for example, through bolts or other structures. The fixing plate 9 may have a countersunk hole to match and connect with the installation edge of the fixing column 8. The fixing plate 9 can be connected to the bottom of the base 1 by bolts or other means. The bottom of the base 1 may have a countersunk hole to match and connect with the fixing plate 9. The detachable connection structure between the fixing column 8, the fixing plate 9, and the base 1 can also be other, as long as it enables a detachable connection, and is not specifically limited.

[0101] A charging device according to some embodiments of this application includes: a magnetic base, which is the magnetic base described in any of the above embodiments; and a charging coil disposed inside the accommodating space of the magnetic base.

[0102] Other components of the charging device according to the embodiments of this application, such as connection circuits, power supplies, and operation, are known to those skilled in the art and will not be described in detail here.

[0103] According to some embodiments of this application, given the current situation where magnetic chargers, in order to ensure alignment and effective contact between the phone and the charging base, are inconvenient to remove after adsorption, requiring two-handed operation to separate the two, which is cumbersome for users and detrimental to user experience, this embodiment provides a novel magnetic wireless charging base structure 1, which can effectively solve the problem of inconvenience in removing magnetic chargers in application. This magnetic phone charging base structure design, through its internal structure, allows for easy one-handed removal of the phone with a simple pressing operation, solving the problem of cumbersome removal operations after adsorption by existing chargers and improving the user experience.

[0104] The magnetic mobile phone charging dock structure provided in this embodiment is as follows: Figure 2 and Figure 3 As shown, the phone support cover 2 is assembled into the guide groove 4 on the base 1. The fixing post 8 is assembled and fixed on the fixing plate 9, and is assembled and fixed to the base 1 through the fixing plate 9. The spring 7 is sleeved on the fixing post 8, and the stop 6 is nested on the outside of the spring 7 and sleeved on the fixing post 8 together, which can move in the axial direction of the fixing post 8. The outer protruding rib, i.e., the sliding protrusion 603, on the stop 6 is assembled into the guide groove 4 on the base 1. The toothed surface on the stop 6 and the toothed surface on the guide post 5 of the phone support cover 2 are in contact within the guide groove 4. The upper cylindrical sleeve rod, i.e., the first shaft section 601, of the stop 6 is assembled into the opening in the middle of the phone support cover 2, i.e., inside the guide post 5. Pressing the phone support cover 2 can drive the stop 6 to move downward. The magnet is assembled in the fixing groove 301 on the base 1, which plays an adsorption role for the phone placed on the phone support cover 2.

[0105] The magnetic phone charging stand provided in this embodiment adjusts the magnetic force by changing the distance between the built-in magnet and the phone, thus switching between a fixed, attached state and a detachable state. When the phone is naturally placed on the charging stand, the magnetic force is relatively small, ensuring easy removal or placement. When the phone needs charging, such as... Figure 10 As shown, pressing the support cover 2 pushes the stop 6 downwards along the guide groove 4 of the base 1 until the stop 6 is pressed to the bottom. At this point, the sliding protrusion 603 on the stop 6 is pushed out of the first gap 402. Because the toothed surface on the guide post 5 of the phone support cover 2 and the toothed surface on the step of the stop 6 are in inclined engagement, there is a lateral thrust. When the sliding protrusion 603 is pushed out of the first gap 402, it will rotate clockwise, moving to below the first inclined surface 4011 of the limiting protrusion 401. Releasing the pressure at this point allows the stop 6 to slide along the first inclined surface 4011 to the locking position under the restoring force of the spring 7, fixing the adsorption distance and ensuring stable phone adsorption and charging.

[0106] When the phone needs to be used, press the support cover 2 again to push the sliding protrusion 603 on the stop 6 out of the locking position. Under the lateral pushing force of the toothed surface on the phone support cover 2 and the inclined surface of the toothed surface on the stop 6, the sliding protrusion 603 rotates clockwise to below the lower inclined surface of the base 1. At this time, release the press, and the sliding protrusion 603 of the stop 6 slides along the lower inclined surface of the base 1 to the first gap 402 under the restoring force of the spring 7, and then rises along the first gap 402 to return to its natural placement position. At this time, the charging base has a smaller magnetic force on the phone, and the phone can be easily picked up with one hand.

[0107] This embodiment utilizes a distance control mechanism designed inside the magnetic mobile phone charging base to control the strength of the magnetic attraction between the magnet and the mobile phone, enabling the switching between the adsorption and retrieval states of the mobile phone and the charging base, thus meeting user needs. It solves pain points in existing product applications and improves the user experience. Achieving this through structural components eliminates the need for external detection sensors and power sources; the switching between the adsorption and retrieval states of the mobile phone and the charging base can be achieved simply by pressing with one hand, making it easy to operate and convenient for commercial promotion.

[0108] Furthermore, the magnetic base provided in this embodiment can not only be used in charging devices to achieve magnetic charging, but also in fixing brackets, etc., and its specific application is not limited.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "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 this application. 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.

[0110] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A magnetic holder, characterized in that, include: A base and a support cover movably connected to one end of the base, with an accommodating space between the base and the support cover, and a magnetic component inside the accommodating space; An elastic structure is disposed between the base and the support cover. When the elastic structure is in its natural state, the support cover is in a first position relative to the base. A push-button switch includes a pressing part and a locking structure. The pressing part is disposed on the base or the support cover and is used to receive pressing force. The locking structure is disposed between the base and the support cover. The push-button switch is used to connect or disconnect the locking structure under the pressing force. When the locking structure is connected, the support cover is in a second position relative to the base. When the locking structure is disconnected, the support cover returns to the first position under the action of the elastic structure. Wherein, the distance between the support cover and the base when the support cover is in the first position is greater than the distance between the support cover and the base when the support cover is in the second position.

2. The magnetic base according to claim 1, characterized in that, The side wall of the support cover is inserted into the base, and the locking structure is provided between the side wall of the support cover and the side wall of the base. Alternatively, the bottom inner side of the base is provided with a guide groove, the inner side of the support cover is provided with a guide post, the first end of the guide groove is away from the bottom of the base, the second end of the guide groove is connected to the bottom of the base, the guide post is inserted into the first end of the guide groove, and the clamping structure is provided between the inner wall of the guide groove and the guide post. Alternatively, the base has a guide groove on its inner bottom side, the support cover has a guide post on its inner side, the first end of the guide groove is away from the bottom of the base, the second end of the guide groove is connected to the bottom of the base, the guide post is inserted into the first end of the guide groove, the push switch also includes a stop member, the stop member is disposed inside the guide groove, the elastic structure is disposed inside the guide groove and the stop member is supported by the elastic structure, the guide post is supported by the stop member, and the locking structure is disposed between the inner wall of the guide groove and the stop member.

3. The magnetic base according to claim 2, characterized in that, When the clamping structure is located between the inner wall of the guide groove and the stop member, the support cover is the pressing part; The clamping structure includes a plurality of limiting protrusions provided on the inner wall of the first end of the guide groove and a plurality of sliding protrusions provided on the outer wall of the stop member. The plurality of limiting protrusions have a plurality of gaps along the circumferential direction of the guide groove. The plurality of gaps include a first gap and a second gap that are alternately arranged along the circumferential direction. The first gap is matched and inserted with the sliding protrusion. The first end of the limiting protrusion is away from the bottom of the base, and the second end of the limiting protrusion is close to the bottom of the base. The end face of the second end of the limiting protrusion is set as a first inclined surface, and the end face of the sliding protrusion facing the support cover is set as a second inclined surface. The first inclined surface and the second inclined surface match each other, so that when the sliding protrusion slides along the first gap to the end face of the second end of the limiting protrusion under the action of the pressing force, the sliding protrusion rotates along the first inclined surface under the elastic force of the elastic structure. The second gap is provided with a blocking structure, which is used to prevent the sliding protrusion from moving along the second gap toward the first end of the guide groove.

4. The magnetic holder according to claim 3, characterized in that, The blocking structure is specifically as follows: the inner wall of the guide groove is provided with a transition protrusion at the second gap, the first end of the transition protrusion is away from the bottom of the base, the second end of the transition protrusion is close to the bottom of the base, the end face of the second end of the transition protrusion is set as a third inclined surface, the third inclined surface extends and connects with the side of the first inclined surface close to the support cover, the width of the transition protrusion along the circumference of the guide groove is the same as the width of the second gap, or the width of the transition protrusion is less than the width of the second gap, and the difference between the two widths is less than the width of the sliding protrusion; Alternatively, the width of the second gap along the circumferential direction of the guide groove is smaller than the width of the sliding protrusion.

5. The magnetic holder according to claim 3 or 4, characterized in that, The stop has a first shaft segment and a second shaft segment along the axial direction. The cross-sectional dimension of the first shaft segment is smaller than that of the second shaft segment. A stepped surface is formed on the outer wall of the stop between the first shaft segment and the second shaft segment. The first shaft segment is inserted into the guide post. The guide post is supported by the stepped surface. The elastic structure is disposed inside the second shaft segment. The sliding protrusion is disposed on the outer wall of the second shaft segment.

6. The magnetic holder according to claim 3 or 4, characterized in that, A guide protrusion is provided on the outer wall of the guide post at the location corresponding to the gap between the guide protrusion and the limiting protrusion.

7. The magnetic base according to claim 5, characterized in that, A toothed structure is provided between the stepped surface and the end face of the guide post. The toothed structure includes multiple sets of teeth along the circumference of the stepped surface and the guide post. Each set of teeth includes a corresponding first tooth and a second tooth. The first tooth is provided on the stepped surface, and the second tooth is provided on the end face of the guide post. The first tooth and the second tooth are staggered, and the direction from the tooth peak of the first tooth to the tooth valley of the second tooth is consistent with the rotation direction of the sliding protrusion.

8. The magnetic holder according to claim 3 or 4, characterized in that, The stop member has a raised edge on the outer wall of the end away from the support cover.

9. The magnetic holder according to any one of claims 2-4, characterized in that, The elastic structure includes a spring and a fixing post. The bottom of the base has an opening corresponding to the guide groove. A fixing plate is detachably connected to the opening. The fixing post is detachably connected to the fixing plate. The spring is sleeved on the fixing post.

10. A charging device, characterized in that, include: The magnetic holder is the magnetic holder as described in any one of claims 1-9 above; The charging coil is located inside the accommodating space of the magnetic base.

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