Magnetic type vehicle-mounted electric appliance

By combining the magnetically designed housing, magnetic components, and conductive components, the problem of insufficient stability in the fixed and electrical connections of vehicle electrical appliances is solved, achieving a more reliable electrical connection.

CN224318818UActive Publication Date: 2026-06-02SHENZHEN BASEUS TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN BASEUS TECH CO LTD
Filing Date
2025-05-27
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing fixed and electrical connections of vehicle electrical systems are not stable enough and are prone to failure due to positional and dimensional inaccuracies.

Method used

The design employs a magnetic attraction mechanism, which, through the cooperation of the housing, magnetic components, and conductive components, ensures that the magnetic components are magnetically connected to the interface wall, and the conductive components contact the interface wall to obtain electrical energy. This restricts the relative positional relationship between the magnetic components and the conductive components, thereby improving the reliability of the electrical connection.

Benefits of technology

While ensuring the magnetic attraction and fixation effect, the reliability of the electrical connection between the conductive component and the interface wall is improved, and the stability problems of the fixed connection and electrical connection are solved.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a magnetic vehicle electrical appliance, comprising a housing, a magnetic component, and a first conductive component. The housing includes a first shell and a second shell. Along a direction perpendicular to a first direction, the maximum size of the second shell is larger than the maximum size of the first shell. The end of the second shell connecting to the first shell has a mounting end face. The magnetic component is connected to the second shell, and both the magnetic component and the mounting end face face towards the interface wall where the vehicle interface is located along the first direction. The first conductive component is connected to the second shell, and both the first conductive component and the mounting end face face towards the interface wall along the first direction. After the mounting end face contacts the interface wall, the first conductive component can contact the interface wall and obtain electrical energy. Along the first direction, the end face of the magnetic component adapted to face the interface wall is the first end face, and the end face of the first conductive component adapted to face the interface wall is the second end face. The first end face and the second end face are coplanar, or the first end face is located on the side of the second end face away from the interface wall along the first direction.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle electrical technology, and in particular to a magnetic vehicle electrical appliance. Background Technology

[0002] Vehicle electrical components include elastic contacts, which, in conjunction with the vehicle's interface, achieve both fixed and electrical connections. This connection method utilizes the elastic deformation of the contacts, which can easily lead to problems such as poor electrical contact and loose connections. Specifically, the vehicle electrical component can be a vehicle charger (hereinafter referred to as a car charger), which typically consists of a main body, positive contacts, a negative contact spring, and a PCB board assembly. The negative contact spring is located on the side wall of the car charger, and its fixation relies on the combination of the deformation and rebound force of the negative contact spring and the squeezing and friction forces of the cigarette lighter side wall. This fixation method suffers from insufficient stability and difficulty in insertion. Therefore, in related technologies, car chargers are equipped with magnetic and electrical contacts. During installation and use, the end face of the car charger near the cigarette lighter abuts against the wall where the cigarette lighter is located, allowing both the magnetic and electrical contacts to simultaneously contact the wall, thus achieving both fixed and electrical connections. However, the above connection method requires that both the magnetic and electrical contacts have good positional and dimensional accuracy. If one of them is damaged or undergoes fatigue deformation, it can easily lead to the failure of the fixed connection and electrical connection of the car charger. Utility Model Content

[0003] The main purpose of this utility model is to propose a magnetic vehicle electrical appliance. Under the premise of ensuring that the magnetic component can play a magnetic attraction and fixation role, the magnetic vehicle electrical appliance of this utility model effectively improves the reliability of the electrical connection between the first conductive component and the interface wall.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0005] A magnetic vehicle electrical appliance, used in a vehicle, characterized in that the magnetic vehicle electrical appliance comprises:

[0006] The housing includes a first housing and a second housing connected to each other along a first direction. The first housing is adapted to be inserted into a vehicle interface along the first direction. Along a direction perpendicular to the first direction, the maximum size of the second housing is greater than the maximum size of the first housing. The end of the second housing that connects to the first housing has a mounting end face.

[0007] A magnetic component is connected to the second housing. Both the magnetic component and the mounting end face are oriented towards the interface wall where the vehicle interface is located in the first direction, so that the magnetic vehicle electrical appliance can be magnetically connected to the interface wall.

[0008] The first conductive element is connected to the second shell. Both the first conductive element and the mounting end face face the interface wall in the first direction. After the mounting end face contacts the interface wall, the first conductive element can contact the interface wall and obtain electrical energy.

[0009] Wherein, along the first direction, the end face of the magnetic component that is adapted to face the interface wall is the first end face, and the end face of the first conductive component that is adapted to face the interface wall is the second end face. The first end face and the second end face are coplanar, or the first end face is located on the side of the second end face that is away from the interface wall along the first direction.

[0010] In some embodiments, the second end face is coplanar with the mounting end face;

[0011] or,

[0012] The second end face is located on the side of the mounting end face away from the interface wall along the first direction. The first conductive element is configured to move along the direction from the first shell to the second shell and store the first elastic force after acquiring the driving force. After the first elastic force is released, the first elastic force drives the first conductive element to move along the direction from the second shell to the first shell.

[0013] In some embodiments, along a direction perpendicular to the first direction, the cross-section of the second shell has a first end, a second end, a third end, and a fourth end arranged sequentially in a circumferential direction surrounding the first direction; along a second direction perpendicular to the first direction, the first end and the third end are arranged opposite to each other; along a third direction perpendicular to both the first and second directions, the second end and the fourth end are arranged opposite to each other; along the third direction, the maximum distance between the first end and the third end is L1; along the second direction, the maximum distance between the second end and the fourth end is L2, and satisfies: 28mm≤L1≤32mm, 23.5mm≤L2≤27.5mm.

[0014] In some embodiments, the maximum dimension of the second shell along the first direction is L3, and satisfies: 3mm≤L3≤8mm.

[0015] In some embodiments, the maximum dimension of the first shell along the first direction is L4, and satisfies: 27.5mm≤L4≤31mm.

[0016] In some embodiments, the magnetic vehicle electrical appliance further includes a second conductive element connected to the end of the first housing away from the second housing in a first direction. The second conductive element is configured to move in the direction from the first housing to the second housing after acquiring driving force and to store a second elastic force. After the second elastic force is released, the second elastic force drives the second conductive element to move in the direction from the second housing to the first housing.

[0017] The maximum dimension of the second conductive element along the first direction is L5, and it satisfies: 4.5mm≤L5≤8.5mm.

[0018] In some embodiments, the second shell has a cavity, the mounting end face has a through hole communicating with the cavity, and the magnetic element includes a first magnetic part and a second magnetic part connected to each other along a first direction. The first magnetic part is located in the cavity, and along the first direction, the second magnetic part passes through the through hole and its end is coplanar with the mounting end face.

[0019] In some embodiments, the second shell includes a shell body and a mounting member. The second shell has a cavity, the mounting member has a through hole communicating with the cavity, a magnetic member is located in the cavity, one end of the magnetic member along a first direction is parallel to the mounting end face, and when viewed in the direction from the first shell to the second shell, at least a portion of the magnetic member can be exposed through the through hole. The outer periphery of the shell body has a second groove, the mounting member is fixedly connected to the shell body and located in the second groove, and the mounting member can form a mounting end face.

[0020] In some embodiments, the mounting end face has a second groove, which is recessed toward the side away from the first housing along a first direction, and the end of the magnetic element located in the second groove along the first direction is coplanar with the mounting end face.

[0021] In some embodiments, the outer periphery of the second shell has a third groove, and at least a portion of the first conductive element is located in the third groove.

[0022] In some embodiments, there are multiple first conductive elements and multiple magnetic elements, and a first conductive element is provided between every two magnetic elements along the direction surrounding the first direction.

[0023] In some embodiments, the second shell has a cavity, and a magnetic element is located in the cavity. The magnetic element is arranged at a distance from the inner periphery of the second shell along a direction perpendicular to the first direction.

[0024] In some embodiments, the magnetic element is connected to the mounting end face, and the magnetic element protrudes from the mounting end face along a first direction so that the magnetic element can contact the interface wall and magnetically connect to the interface wall, and the mounting end face and the interface wall are in indirect contact.

[0025] And / or,

[0026] Both the first conductive element and the mounting end face face towards the interface wall in the first direction. The first conductive element is connected to the mounting end face and protrudes from the mounting end face in the first direction so that the first conductive element can contact the interface wall and obtain electrical energy, and so that the mounting end face and the interface wall are in indirect contact.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] This utility model discloses a magnetic vehicle electrical appliance comprising a housing, a magnetic component, and a first conductive component. The housing includes a first shell and a second shell connected to each other along a first direction. The first shell is adapted to be inserted into a vehicle's in-vehicle interface along the first direction. Along a direction perpendicular to the first direction, the maximum size of the second shell is larger than the maximum size of the first shell. The end of the second shell connecting to the first shell has a mounting end face. The magnetic component is connected to the second shell, and both the magnetic component and the mounting end face face the interface wall where the in-vehicle interface is located along the first direction, enabling the magnetic vehicle electrical appliance to magnetically connect to the interface wall. The first conductive component is connected to the second shell, and both the first conductive component and the mounting end face face the interface wall along the first direction. After the mounting end face contacts the interface wall, the first conductive component can contact the interface wall and obtain electrical energy. Along the first direction, the end face of the magnetic component facing the interface wall is the first end face, and the end face of the first conductive component facing the interface wall is the second end face. The first end face and the second end face are coplanar, or the first end face is located on the side of the second end face away from the interface wall along the first direction. Compared to the installation and positioning method in related technologies where the end face of the car charger near the cigarette lighter abuts against the wall where the cigarette lighter is located, thereby allowing the magnetic and electrical contacts to simultaneously contact the wall where the cigarette lighter is located, the magnetic vehicle electrical appliance of this utility model further restricts the relative positional relationship between the magnetic component and the first conductive component. While ensuring that the magnetic component can play a magnetic attraction and fixing role, it effectively improves the reliability of the electrical connection between the first conductive component and the interface wall. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional schematic diagram of the magnetic vehicle electrical appliance provided in the first embodiment of the present utility model;

[0031] Figure 2 This is a top view schematic diagram of the magnetic vehicle electrical appliance provided in the first embodiment of the present utility model;

[0032] Figure 3 for Figure 2 Schematic diagram of the cross section at point AA;

[0033] Figure 4 This is a three-dimensional schematic diagram of the magnetic vehicle electrical appliance provided in the first embodiment of the present invention; wherein, part of the shell has been removed.

[0034] Figure 5This is a top view of the magnetic vehicle electrical appliance provided in the first embodiment of the present invention; in which part of the housing has been removed.

[0035] Figure 6 An exploded view of the magnetic vehicle electrical appliance provided in the first embodiment of this utility model;

[0036] Figure 7 This is a three-dimensional schematic diagram of the magnetic vehicle electrical appliance provided in the second embodiment of the present invention; wherein, part of the shell has been removed.

[0037] Figure 8 This is a top view of the magnetic vehicle electrical appliance provided in the second embodiment of the present invention; in which part of the shell has been removed.

[0038] Figure 9 An exploded view of the magnetic vehicle electrical appliance provided in the second embodiment of this utility model;

[0039] Figure 10 This is a three-dimensional schematic diagram of the magnetic vehicle electrical appliance provided in the third embodiment of this utility model;

[0040] Figure 11 An exploded view of the magnetic vehicle electrical appliance provided in the third embodiment of this utility model;

[0041] Figure 12 This is a front view schematic diagram along a third direction of the magnetic vehicle electrical appliance provided in the fourth embodiment of the present utility model; wherein, the specific dimensions and dimensional tolerances of the magnetic vehicle electrical appliance in some embodiments are shown, and the unit of each dimension is millimeters;

[0042] Figure 13 This is a side view of the magnetic vehicle electrical appliance provided in the fourth embodiment of the present invention along the second direction; wherein, the specific dimensions and dimensional tolerances of the magnetic vehicle electrical appliance in some embodiments are shown, and the unit of each dimension is millimeters;

[0043] Figure 14 This is a three-dimensional schematic diagram of the magnetic vehicle electrical appliance provided in the fourth embodiment of this utility model.

[0044] Explanation of icon numbers:

[0045] Magnetic vehicle electrical appliances 100;

[0046] Shell 110; First shell 111; Outer peripheral surface 1111; Fourth groove 1112; Second shell 112; Mounting end face 1121; Through hole 1122; End wall 1123; First groove 1124; Shell body 1125; Mounting component 1126; Second groove 1127; Third groove 1128; Cavity 113; First end 114; Second end 115; Third end 116; Fourth end 117;

[0047] Magnetic component 120; First magnetic part 121; Second magnetic part 122; First end face 123;

[0048] First conductive element 130; Second end face 131;

[0049] Second conductive element 140;

[0050] Circuit board 150;

[0051] First direction X

[0052] Second direction Y;

[0053] The third direction, Z.

[0054] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0055] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0056] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0057] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where A and B are simultaneously satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0058] In related technologies, car chargers are equipped with magnetic and electrical contacts. During installation and use, the end face of the car charger near the cigarette lighter socket abuts against the wall surface where the cigarette lighter socket is located, causing both the magnetic and electrical contacts to simultaneously contact the wall surface, thus achieving both a fixed connection and an electrical connection. However, this connection method requires both the magnetic and electrical contacts to have good positional and dimensional accuracy. If either is damaged or undergoes fatigue deformation, it can easily lead to the failure of both the fixed and electrical connections of the car charger.

[0059] In view of this, see Figures 1-14 This utility model provides a magnetic vehicle electrical appliance 100 for use in vehicles. It should be noted that the magnetic vehicle electrical appliance 100 in this utility model includes various suitable electrical appliances, such as vehicle chargers, vehicle refrigerators, and dashcams. The following description uses an embodiment of the magnetic vehicle electrical appliance 100 as a vehicle charger. Furthermore, the vehicles in this utility model include various types of vehicles, such as private cars and commercial vehicles; vehicles can be gasoline-powered vehicles or new energy vehicles.

[0060] For details, see Figures 1-6The magnetic vehicle electrical appliance 100 includes a housing 110, a magnetic component 120, and a first conductive component 130. The housing 110 serves as the outer shell of the magnetic vehicle electrical appliance 100. Other components besides the housing 110 can be entirely or partially located within the housing 110. The housing 110 includes a first shell 111 and a second shell 112 connected to each other along a first direction X. The first shell 111 and the second shell 112 can be connected in any suitable manner, and can be detachable (e.g., snap-fit ​​connection, threaded connection, etc.) or integrally connected (e.g., integral molding connection, welding, etc.). The first shell 111 is adapted to be inserted into a vehicle's in-vehicle interface along the first direction X. The in-vehicle interface is located in the vehicle and is used to provide electrical power; specifically, the in-vehicle interface can be a cigarette lighter socket. Along a direction perpendicular to the first direction X, the maximum size of the second shell 112 is larger than the maximum size of the first shell 111, and the end of the second shell 112 connecting to the first shell 111 has a mounting end face 1121. With the above-described dimensional settings, after the first housing 111 is inserted into the vehicle interface, the second housing 112 can abut against the interface wall where the vehicle interface is located, thereby forming the installation positioning of the magnetic vehicle electrical appliance 100 through the aforementioned abutment action. The external structure of the housing 110 can be a rotating body; more specifically, in... Figures 1-6 In the embodiment shown, both the first shell 111 and the second shell 112 are cylindrical. In this case, the mounting end face 1121 is an annular stepped surface formed at the transition position between the first shell 111 and the second shell 112.

[0061] For securing the magnetic vehicle electrical appliance 100, see [link / reference]. Figures 1-6The magnetic component 120 is connected to the second housing 112 so that the second housing 112 can magnetically attract the interface wall where the vehicle interface is located. Specifically, the magnetic component 120 is connected to the mounting end face 1121, and both the magnetic component 120 and the mounting end face 1121 face the interface wall where the vehicle interface is located along the first direction X. The above definition indicates that the magnetic component 120 has at least one magnetic surface for magnetically attracting the interface wall, and the normal of the magnetic surface and the normal of the mounting end face 1121 both point towards the interface wall. This arrangement allows the magnetic component 120 to achieve a better magnetic attraction effect. That is to say, after the magnetic component 120 is provided, while the second housing 112 abuts against the interface wall along the first direction X, the magnetic component 120 and the interface wall generate a magnetic attraction, thereby making the fixing and disassembly of the magnetic vehicle electrical appliance 100 more convenient, and its position more stable and less prone to shaking during use. It should be noted that the fixed connections described in this utility model can be either detachable or integral, and the specific connection method can be changed according to requirements. When the vehicle interface is a cigarette lighter interface, the interface wall itself is made of metal material, so that the magnetic component 120 and the interface wall can generate a magnetic attraction between them, and the interface wall can achieve a contact-type electrical connection to provide power to the magnetic vehicle electrical appliance 100.

[0062] To power the magnetic vehicle electrical appliance 100, see [link / reference]. Figure 1 The first conductive element 130 is connected to the second housing 112. After the mounting end face 1121 contacts the interface wall, the first conductive element 130 is configured to acquire electrical energy. Specifically, in the first method of acquiring electrical energy, the first conductive element 130 directly acquires electrical energy through electrical contact with the interface wall; in the second method, the first conductive element 130 acquires electrical energy through electrical contact between the mounting end face 1121 and the interface wall; in the third method, the first conductive element 130 acquires electrical energy from the interface wall through electrical contact between the magnetic element 120 and the interface wall (which also makes the mounting end face 1121 indirectly contact the interface wall). For the specific electrical connection settings of the first conductive element 130, please refer to the following text.

[0063] It should be noted that the magnetic component 120 and the first conductive component 130 can be two separate components or two parts of the same component. For example, the magnetic vehicle electrical appliance 100 may include a magnetic conductive component, the part of which is used for magnetic attraction is the magnetic component 120, and the part used for generating electrical connection is the first conductive component 130. The embodiments of this utility model are all described with the case that the magnetic component 120 and the first conductive component 130 are separate components.

[0064] The following describes the more specific settings of magnetic component 120; see [link to documentation]. Figures 1-3In some embodiments, the end of the magnetic element 120 along the first direction X is coplanar with the mounting end face 1121. Under the above limitations, only a portion of the end of the magnetic element 120 along the first direction X may be coplanar with the mounting end face 1121. This coplanar arrangement ensures that when the second shell 112 abuts against the interface wall, the magnetic element 120 also abuts against the interface wall, thus enabling the magnetic element 120 to exert a better magnetic attraction effect. In other embodiments, the magnetic element 120 protrudes from the mounting end face 1121 along the first direction X, allowing the magnetic element 120 to contact and magnetically connect to the interface wall, and indirectly contacting the mounting end face 1121 with the interface wall.

[0065] See Figures 1-5 The second shell 112 has a cavity 113, and the magnetic element 120 is located in the cavity 113. Along a direction perpendicular to the first direction X, the magnetic element 120 and the inner periphery of the second shell 112 are arranged at a distance. It should be noted that the inner periphery of the second shell 112 refers to the inner periphery of the outer shell portion of the second shell 112, excluding other internal structures of the second shell 112. The aforementioned direction perpendicular to the first direction X includes multiple directions, and the above-mentioned limitation can ensure that the magnetic element 120 and the inner periphery of the second shell 112 are arranged at a distance in multiple directions, or that the arrangement is satisfied in only some of the directions.

[0066] The following describes the first mounting method of magnetic component 120. See [link / reference]. Figures 1-6 In some embodiments, the second shell 112 has a cavity 113, and the mounting end face 1121 has a through hole 1122 communicating with the cavity 113. The magnetic component 120 includes a first magnetic part 121 and a second magnetic part 122 connected to each other along a first direction X. The first magnetic part 121 and the second magnetic part 122 can be connected in any suitable way, and they can be detachably connected or integrally connected. Based on the above definition, in some embodiments, the first magnetic part 121 is located in the cavity 113, and the second magnetic part 122 passes through the through hole 1122 along the first direction X. In conjunction with the description of the foregoing embodiments, the end of the second magnetic part 122 passing through the through hole 1122 can be coplanar with the mounting end face 1121. Through the above arrangement, the second magnetic part 122 can also play a positioning role after passing through the through hole 1122, making the magnetic component 120 easier to install and less prone to shaking.

[0067] Furthermore, to facilitate the installation of the magnetic component 120, the second housing 112 may include a first groove 1124. The first groove 1124 is located on the inner periphery of the second housing 112 and is recessed towards the side closer to the first housing 111. For details, see [link to documentation]. Figures 1-6In some embodiments, the second shell 112 includes an end wall 1123. Along the first direction X, one side of the end wall 1123 has a mounting end face 1121, and the other side of the end wall 1123 has a first groove 1124 recessed towards the side near the mounting end face 1121. At least a portion of the magnetic element 120 is located in the first groove 1124. It is understood that the first groove 1124 is located in the receiving cavity, and the magnetic element 120 can extend into the first groove 1124 along the first direction X to form a positioning installation. When viewed along the first direction X, the shape and size of the first groove 1124 can be the same as (or substantially the same as) the shape and size of the magnetic element 120 to achieve a better positioning effect for the magnetic element 120. More specifically, in conjunction with the above-described arrangements of the perforation 1122, the first magnetic part 121, and the second magnetic part 122, in some embodiments, when viewed along the first direction X, the outer contour of the first groove 1124 is located outside the outer contour of the perforation 1122. Thus, while the first magnetic part 121 passes through the perforation 1122, the second magnetic part 122 is located in the first groove 1124 and abuts against the bottom surface of the first groove 1124. In addition to accommodating the magnetic component 120, the first groove 1124 can also accommodate other components connected to the magnetic component 120, such as the mounting component 1126 described later.

[0068] The following describes a second mounting method for the magnetic component 120, based on the cavity 113 and the through hole 1122 defined in the aforementioned embodiment. See [link to previous description]. Figures 7-9 In some embodiments, one end of the magnetic component 120 along the first direction X is parallel to the mounting end face 1121. When viewed from the direction of the first housing 111 toward the second housing 112, at least a portion of the magnetic component 120 can be exposed through the perforation 1122. Herein, "at least a portion of the magnetic component 120 can be exposed through the perforation 1122 when viewed from the direction of the first housing 111 toward the second housing 112" is defined as: when a user observes from the outside of the magnetic vehicle electrical appliance 100 from the direction of the first housing 111 toward the second housing 112, at least a portion of the magnetic component 120 located within the cavity 113 can be seen through the perforation 1122. The above-described arrangement allows the magnetic component 120 to be placed inside the cavity 113, making the installation of the magnetic component 120 more convenient. Furthermore, the shape design of the magnetic component 120 is less restricted, and a more universally applicable magnetic component 120 can be used. At the same time, the perforation 1122 makes the exterior of the second shell 112 hollowed out, exposing the magnetic component 120 inside the cavity 113, ensuring that the magnetic component 120 can still perform its magnetic function.

[0069] Further, see Figures 6-9In some embodiments, the second shell 112 includes a shell body 1125 and a mounting member 1126. The mounting member 1126 has a through hole 1122, and the shell body 1125 has a second groove 1127. Specifically, the second groove 1127 may include a first groove portion and a second groove portion. The first groove portion is located on the mounting end face 1121 and is recessed along the first direction X toward the side away from the first shell 111. The second groove portion is located on the outer peripheral side of the shell body 1125 and is recessed along the direction perpendicular to the first direction X toward the side near the cavity 113. The mounting member 1126 is fixedly connected to the shell body 1125 and is located in the second groove 1127. The mounting member 1126 can form the mounting end face 1121 (the mounting end face 1121 may be entirely located on the mounting member 1126, or the mounting end face 1121 may be formed by a portion of the mounting member 1126 and a portion of the shell body 1125). It is understood that the mounting component 1126 has a through hole 1122, allowing it to be used to mount the magnetic component 120. The housing body 1125 is the main part of the second housing 112. The mounting component 1126 and the housing body 1125 can be detachably connected or integrally connected. The structural shape of the mounting component 1126 can be adapted to the structural shape of the housing body 1125. Specifically, in Figures 7-9 In the embodiment shown, the second groove 1127 is located on both the mounting end face 1121 and the outer peripheral side of the shell body 1125. The mounting member 1126 is riveted and fixed in the second groove 1127, and the outer periphery of the mounting member 1126 is flush with both the mounting end face 1121 and the outer peripheral side of the shell body 1125.

[0070] Since the above embodiments divide the second shell 112 into two parts, the shell body 1125 and the mounting member 1126, in some embodiments, the magnetic member 120 can be fixedly connected to the mounting member 1126, and the mounting member 1126 can be provided with corresponding fixing members or limiting members, thus eliminating the need to provide fixing members or limiting members on the shell body 1125, saving manufacturing costs. In addition, in some embodiments, the material of the shell body 1125 can be different from the material of the mounting member 1126, and the material of the shell body 1125 can also be different from the material of the first conductive member 130, which is conducive to further saving manufacturing costs. For example, the materials of the mounting member 1126 and the first conductive member 130 can both be metal materials, while the material of the shell body 1125 can be plastic materials.

[0071] The following describes a third mounting method for the magnetic component 120, based on the second slot 1127 defined in the aforementioned embodiment, see [link to previous description]. Figures 10-11In some embodiments, the second groove 1127 is located on the outer periphery of the second shell 112 and recessed towards the side away from the first shell 111. The magnetic element 120 is located in the second groove 1127 and its end along the first direction X is coplanar with the mounting end face 1121. With this connection arrangement, the installation operation of the magnetic element 120 to the second shell 112 is more convenient.

[0072] See Figures 1-11 In some embodiments, there are multiple first conductive elements 130 and magnetic elements 120, with a first conductive element 130 positioned between every two magnetic elements 120 along the first direction X. This arrangement ensures good conductivity and magnetic attraction by having multiple first conductive elements 130 and magnetic elements 120 spaced and arranged in a circular pattern. Furthermore, the placement of a first conductive element 130 between every two magnetic elements 120 further ensures good contact and conductivity between the first conductive element 130 and the interface wall. In other embodiments, multiple first conductive elements 130 may be positioned between every two magnetic elements 120.

[0073] The first conductive element 130 can be installed in the same or similar manner as any of the three installation methods for the aforementioned magnetic element 120. More specific details regarding the conductive element's configuration are described below; see [link to documentation]. Figures 1-6 In some embodiments, both the first conductive element 130 and the mounting end face 1121 face the interface wall along the first direction X. After the mounting end face 1121 contacts the interface wall, the first conductive element 130 can contact the interface wall and obtain electrical energy. The above limitation indicates that the first conductive element 130 has at least one contact surface for electrically connecting to the interface wall, and the normal of the contact surface and the normal of the mounting end face 1121 both point towards the interface wall. This arrangement enables the first conductive element 130 to achieve better contact conductivity.

[0074] Further, see Figures 1-3In some embodiments, the end of the first conductive element 130 along the first direction X is coplanar with the mounting end face 1121. Under the above limitations, only a portion of the end of the first conductive element 130 along the first direction X may be coplanar with the mounting end face 1121. This coplanar arrangement ensures that when the second shell 112 abuts against the interface wall, the first conductive element 130 also abuts against the interface wall, thus enabling the first conductive element 130 to provide better contact conductivity. In conjunction with the aforementioned embodiment regarding the arrangement of the magnetic element 120, when the second shell 112 abuts against the interface wall, the end of the first conductive element 130 along the first direction X is parallel to the end of the magnetic element 120 along the first direction X and abuts against the interface wall together. In other embodiments, the first conductive element 130 protrudes from the mounting end face 1121 along the first direction X, allowing the first conductive element 130 to contact the interface wall and acquire electrical energy, and indirectly contacting the mounting end face 1121 with the interface wall.

[0075] For easier installation of the first conductive element 130, see [link / reference] Figure 6 In some embodiments, the second shell 112 has a third groove 1128 recessed toward the side away from the first shell 111, and at least a portion of the first conductive element 130 is located in the third groove 1128. Specifically, the third groove 1128 may include a third groove portion and a fourth groove portion. The third groove portion is located on the mounting end face 1121 and recessed toward the side away from the first shell 111 along the first direction X, and the fourth groove portion is located on the outer peripheral side of the shell body 1125 and recessed toward the side near the cavity 113 along a direction perpendicular to the first direction X. It is understood that by providing the third groove 1128, after the first conductive element 130 is fixedly installed in the third groove 1128, the end of the first conductive element 130 along the first direction X is coplanar with the mounting end face 1121. The structural shape of the first conductive element 130 can be adapted to the structural shape of the second shell 112. Specifically, in Figure 6 In the illustrated embodiment, the third groove 1128 is located simultaneously on the outer peripheral side of both the mounting end face 1121 and the shell body 1125. The first conductive element 130 is snapped and fixed within the third groove 1128, and the outer periphery of the first conductive element 130 is flush with both the mounting end face 1121 and the outer peripheral side of the shell body 1125. Furthermore, in some embodiments, the structural shape of the first conductive element 130 can refer to the arrangement of the magnetic element 120 in the aforementioned embodiments. For example, the first conductive element 130 may include a first conductive portion and a second conductive portion connected to each other along the first direction X. The arrangement of the first conductive portion and the second conductive portion can refer to the arrangement of the first magnetic portion 121 and the second magnetic portion 122, respectively, and will not be elaborated further here.

[0076] For a more specific conductive configuration of the magnetic vehicle electrical appliance 100, in order to ensure a good and stable conductive effect, the magnetic vehicle electrical appliance 100 may have a positive terminal and a negative terminal, which are electrically connected to the vehicle respectively. See here for further details. Figures 1-11 In some embodiments, the magnetic vehicle electrical appliance 100 further includes a second conductive element 140. The second conductive element 140 is connected to the end of the first housing 111 away from the second housing 112 along the first direction X. After both the first conductive element 130 and the second conductive element 140 acquire electrical energy, the first conductive element 130 is configured as a negative conductive element, and the second conductive element 140 is configured as a positive conductive element. With the above configuration, the first conductive element 130 can serve as the negative terminal of the circuit of the magnetic vehicle electrical appliance 100, and the second conductive element 140 can serve as the positive terminal of the circuit of the magnetic vehicle electrical appliance 100. Specifically, in some embodiments, the second conductive element 140 includes an iron cap and a spring fixedly connected to each other along the first direction X. The iron cap is used to electrically connect to the vehicle interface, and the spring is connected to the end of the first housing 111 along the first direction X, so that the iron cap can achieve elastic expansion and contraction movement along the first direction X.

[0077] See Figures 1-6 In some embodiments, the magnetic vehicle electrical appliance 100 further includes a circuit board 150. The interior of the first shell 111 and the interior of the second shell 112 are connected and together form a cavity 113. The circuit board 150 is located in the cavity 113, and the first conductive element 130 and the second conductive element 140 are electrically connected to the circuit board 150. That is, both the first shell 111 and the second shell 112 can be hollow, allowing the circuit board 150 to pass through the cavity 113, thereby making full use of the internal space of the shell 110 and making the structure of the magnetic vehicle electrical appliance 100 more concise and more integrated. In some embodiments, the end of the second shell 112 away from the first shell 111 along the first direction X can be provided with a charging port. The interface of the circuit board 150 can be exposed from the charging port. After the magnetic vehicle electrical appliance 100 is inserted into the vehicle interface and obtains power, the user can connect the data cable between the charging port and the device to achieve charging.

[0078] Regarding the fixed connection method between the magnetic component 120 and the housing 110, in some embodiments, the magnetic component 120 and the housing 110 are detachably connected. In other embodiments, the magnetic component 120 is configured to be manufactured separately from the second housing 112, and the magnetic component 120 is integrally connected to the second housing 112. Through the above-mentioned integral connection setting, the fixed connection of the magnetic component 120 can be more secure. Specifically, the magnetic component 120 can be integrally connected to the end face of the second housing 112 along the first direction X, that is, it can be connected to any side of the end wall 1123 along the first direction X.

[0079] For easier installation of the magnetic component 120, see [link / reference]. Figures 1-11In some embodiments, the second shell 112 has a groove, which may include one or more of the first groove 1124, the second groove 1127, and the third groove 1128 described in the foregoing embodiments. At least a portion of the magnetic element 120 extends into the groove along the first direction X. The outer contour of the groove may be the same as (or substantially the same as) the outer contour of the magnetic element 120. The size of the groove may be slightly larger than the size of the magnetic element 120. Specifically, in Figures 1-6 In the embodiment shown, the mounting end face 1121 is annular (or can be elliptical). Correspondingly, the outer contour of the groove and the outer contour of the magnetic component 120 are both fan-shaped (the influence of factors such as chamfers and rounded corners needs to be excluded, so they can be roughly fan-shaped). Multiple grooves are distributed around the mounting end face 1121, and the number of magnetic components 120 is the same as the number of grooves and corresponds one-to-one.

[0080] Based on the embodiment where the magnetic component 120 and the second shell 112 are manufactured separately, and the magnetic component 120 is integrally connected to the second shell 112, the specific integral connection method of the magnetic component 120 is described below. Based on the shell body 1125, mounting component 1126, through hole 1122, and second groove 1127 (where the groove body includes the second groove 1127) defined in the aforementioned embodiment, see [link to previous document]. Figures 1-6 In the first integrated connection method of the magnetic component 120, the magnetic component 120 is located in the cavity 113 and integrally connected with the mounting component 1126. This connection arrangement avoids the magnetic component 120 being integrally connected with the shell body 1125, which helps to reduce the operational difficulty of integral connection and save manufacturing costs. At the same time, the mounting component 1126 and the second groove 1127 can be either detachable or integrally connected.

[0081] Based on the perforation 1122, the first magnetic part 121, and the second magnetic part 122 defined in the foregoing embodiments, see [link to previous document]. Figures 7-9 In the second integrated connection method of the magnetic component 120, the first magnetic part 121 is located in the cavity 113 and is integrally connected to the inner circumference of the second shell 112. This connection arrangement makes the connection operation of the magnetic component 120 more convenient and reduces the manufacturing cost. In addition, the second magnetic part 122 can be inserted through the through hole 1122 and does not need to be directly connected to the second shell 112.

[0082] Based on the second slot 1127 defined in the foregoing embodiments, see... Figures 10-11In a third integrated connection method for the magnetic component 120, the magnetic component 120 is integrally connected to the second groove 1127, and its end along the first direction X is coplanar with the mounting end face 1121. With this connection configuration, the operation of connecting the magnetic component 120 to the second housing 112 can be completed on the outside of the second housing 112, making the connection operation more convenient. In other embodiments, the magnetic component 120 may be located in the second groove 1127 and not integrally connected to the second groove 1127 (or the housing 110).

[0083] Furthermore, to facilitate the installation and removal of the magnetic component 120, see [link to relevant documentation]. Figures 10-11 In some embodiments, the second groove 1127 is located on the mounting end face 1121 and is recessed along the first direction X toward the side away from the first housing 111. The first housing 111 has an outer peripheral surface 1111 extending in a direction surrounding the first direction X. The outer peripheral surface 1111 has a fourth groove 1112, which is recessed along a direction perpendicular to the first direction X toward the side near the cavity 113. The end of the fourth groove 1112 near the second housing 112 along the first direction X communicates with the second groove 1127. More specifically, in Figures 10-11 In the illustrated embodiment, the width of the end of the fourth groove 1112 that connects to the second groove 1127 is equal to the width of the end of the second groove 1127 that connects to the fourth groove 1112. Through the cooperation of the second groove 1127 and the fourth groove 1112, on the one hand, it facilitates the installation and removal of the magnetic component 120. Taking installation as an example, the magnetic component 120 can first extend into the fourth groove 1112 from the outside, and then into the second groove 1127 to form a fixed connection, and the fourth groove 1112 can provide the user with a certain operating space; on the other hand, since the fourth groove 1112 and the second groove 1127 form a depth difference at their connection points, the connecting material (such as adhesive, molten material, etc.) required to fix the magnetic component 120 can be retained in this part, so that the connecting material does not protrude from the outer periphery of the housing 110, thus not affecting the normal use of the magnetic vehicle electrical appliance 100.

[0084] Regarding the specific integrated connection method between the magnetic component 120 and the second housing 112, in some embodiments, the magnetic component 120 is configured to be glued to the second housing 112. The aforementioned glue bonding can employ a dispensing fixing process. The shape of the glue dispensing can be straight, curved, circular, dotted, columnar, or planar, etc. Besides the glue bonding described above, integrated connections can also include welding, riveting, fusion welding, and other connection methods.

[0085] The following provides further explanation of the structural design of the magnetic vehicle electrical appliance 100; see [link to relevant documentation]. Figures 12-14Hereinafter, along the first direction X, the end face of the magnetic element 120 facing the interface wall is defined as the first end face 123, and the end face of the first conductive element 130 facing the interface wall is defined as the second end face 131. It can be understood that the first end face 123 is used to generate a magnetic attraction force that fixes the magnetic element 120 to the interface wall, and the second end face 131 is used to contact the interface wall, allowing the first conductive element 130 to acquire electrical energy after contact. Both the first end face 123 and the second end face 131 can have arbitrary shapes and can be planar or curved surfaces.

[0086] Based on the above definition, see Figures 7-9 In the first relative positional relationship between the magnetic component 120 and the first conductive component 130, the first end face 123 and the second end face 131 are coplanar. This arrangement allows the magnetic component 120 and the first conductive component 130 to have the same positioning reference, making the magnetic vehicle electrical appliance 100 easier to use. Furthermore, it ensures that while the first conductive component 130 contacts the interface wall, the magnetic component 120 can also contact the interface wall and exert optimal magnetic attraction. See also... Figures 12-14 In the second relative positional relationship between the magnetic component 120 and the first conductive component 130, the first end face 123 is located on the side of the second end face 131 that is away from the interface wall along the first direction X. This arrangement can, to a certain extent, prevent the magnetic component 120 from interfering with the electrical contact between the first conductive component 130 and the interface wall. Specifically, even when the second end face 131 is worn, dented, or bent, because the first end face 123 is still away from the interface wall relative to the second end face 131, the interface wall still preferentially contacts the first end face 123 during the installation of the magnetic vehicle electrical appliance 100 along the first direction X, thus ensuring the reliability of the electrical connection. Furthermore, even after the magnetic vehicle electrical appliance 100 is installed, and the magnetic component 120 and the interface wall are spaced apart along the first direction X, the magnetic component 120 can still perform the function of magnetic fixation.

[0087] As can be seen, the magnetic vehicle electrical appliance 100 of this utility model includes a housing 110, a magnetic component 120, and a first conductive component 130. The housing 110 includes a first shell 111 and a second shell 112 connected to each other along a first direction X. The first shell 111 is adapted to be inserted into the vehicle's in-vehicle interface along the first direction X. Along a direction perpendicular to the first direction X, the maximum size of the second shell 112 is larger than the maximum size of the first shell 111. The end of the second shell 112 connected to the first shell 111 has a mounting end face 1121. The magnetic component 120 is connected to the second shell 112. Both the magnetic component 120 and the mounting end face 1121 face towards the interface wall where the vehicle interface is located along the first direction X, so that the magnetic vehicle electrical appliance 100 can magnetically connect to the interface wall. The first conductive element 130 is connected to the second housing 112. Both the first conductive element 130 and the mounting end face 1121 face the interface wall along the first direction X. After the mounting end face 1121 contacts the interface wall, the first conductive element 130 can contact the interface wall and obtain electrical energy. Along the first direction X, the end face of the magnetic element 120 facing the interface wall is the first end face 123, and the end face of the first conductive element 130 facing the interface wall is the second end face 131. The first end face 123 and the second end face 131 are coplanar, or the first end face 123 is located on the side of the second end face 131 away from the interface wall along the first direction X. Compared to the installation and positioning method in related technologies where the end face of the car charger near the cigarette lighter abuts against the wall where the cigarette lighter is located, thereby allowing the magnetic and electrical contacts to simultaneously contact the wall where the cigarette lighter is located, the magnetic vehicle electrical appliance 100 of this utility model further restricts the relative positional relationship between the magnetic component 120 and the first conductive component 130. Under the premise of ensuring that the magnetic component 120 can play a magnetic attraction and fixing role, it effectively improves the reliability of the electrical connection between the first conductive component 130 and the interface wall.

[0088] The relative positional relationship between the second end face 131 and the mounting end face 1121 is further explained below. See [link / reference]. Figures 1-11 In the first relative positional relationship, the second end face 131 is coplanar with the mounting end face 1121. This arrangement further unifies the positioning reference of the magnetic vehicle electrical appliance 100, making the positioning and installation operation of the magnetic vehicle electrical appliance 100 more convenient. See also Figures 12-14In the second relative position relationship, the second end face 131 is located on the side of the mounting end face 1121 away from the interface wall along the first direction X. The first conductive element 130 is configured to move along the direction from the first shell 111 to the second shell 112 and store the first elastic force after acquiring the driving force. After the first elastic force is released, the first elastic force drives the first conductive element 130 to move along the direction from the second shell 112 to the first shell 111. Specifically, according to the above configuration, the first conductive element 130 can be a spring sheet. In the initial state, the first conductive element 130 is tilted and one end is fixedly connected to the housing 110. After the spring sheet is driven by a driving force along the first direction X, it can be flipped to a position where the second end face 131 and the mounting end face 1121 are coplanar. After losing the driving force, the first elastic force drives the first conductive element 130 to return to the initial tilted state. In the above embodiment, the first elastic force is provided by the spring sheet-shaped first conductive element 130. In other embodiments, the first conductive element 130 may include a conductive body and an elastic element. The elastic element is connected between the conductive body and the housing 110 and is used to provide the first elastic force.

[0089] The following specifies the dimensions of the magnetic vehicle electrical appliance 100; see [link / reference]. Figures 12-14 In some embodiments, along a direction perpendicular to the first direction X, the cross-section of the second shell 112 has a first end 114, a second end 115, a third end 116, and a fourth end 117 arranged sequentially around the first direction X. The cross-section of the second shell 112 along the direction perpendicular to the first direction X can be of any suitable shape, such as any one of a circle, an ellipse, a racetrack shape, or a rectangle. In some embodiments, along a second direction Y perpendicular to the first direction X, the first end 114 and the third end 116 are arranged opposite each other, and along a third direction Z perpendicular to both the first direction X and the second direction Y, the second end 115 and the fourth end 117 are arranged opposite each other. Along the third direction Z, the maximum distance between the first end 114 and the third end 116 is L1, and along the second direction Y, the maximum distance between the second end 115 and the fourth end 117 is L2, satisfying: 28mm ≤ L1 ≤ 32mm, 23.5mm ≤ L2 ≤ 32mm. For example, L1 can be any of 28mm, 29mm, 30mm, 31mm, or 32mm; L2 can be any of 23.5mm, 24.5mm, 25.5mm, 26.5mm, or 27.5mm. By limiting the values ​​of L1 and L2, the second housing 112 can adapt to the sizes of various types of vehicle interfaces on the market, ensuring that the second housing 112 can stably abut against the mounting end face 1121, resulting in good positioning of the magnetic vehicle electrical appliance 100.

[0090] See Figures 12-14In some embodiments, the maximum dimension of the second housing 112 along the first direction X is L3, and satisfies: 3mm ≤ L3 ≤ 8mm. For example, L3 can take any value of 3mm, 4mm, 5mm, 6mm, 7mm, or 8mm. By limiting the value of L3, the structure of the magnetic vehicle electrical appliance 100 can be made more streamlined, which is beneficial for achieving lightweight design.

[0091] See Figures 12-14 In some embodiments, the maximum dimension of the first housing 111 along the first direction X is L4, and satisfies: 27.5mm ≤ L4 ≤ 31mm. For example, L4 can take any value from 27.5mm, 28.5mm, 29.5mm, 30.5mm, and 31mm. L4 corresponds to the dimension of the first housing 111 extending into the vehicle interface. By limiting the value of L4, a good insertion fit can be ensured between the magnetic vehicle electrical appliance 100 and the vehicle interface.

[0092] Based on the second conductive element 140 defined in the foregoing embodiments, see [link to previous document]. Figures 12-14 In some embodiments, the second conductive element 140 is configured to move along the direction from the first shell 111 to the second shell 112 after acquiring driving force and to store a second elastic force. After the second elastic force is released, it drives the second conductive element 140 to move along the direction from the second shell 112 to the first shell 111. In some embodiments, the maximum dimension of the second conductive element 140 along the first direction X is L5, and satisfies: 4.5mm ≤ L5 ≤ 8.5mm. For example, L5 can be any of 4.5mm, 5.5mm, 6.5mm, 7.5mm, and 8.5mm. By limiting the value of L5, it can be ensured that after the first shell 111 extends into the vehicle interface, the second conductive element 140 can form a good and stable electrical connection with the electrical contacts inside the vehicle interface. At the same time, it avoids the magnetic attraction and fixing effect of the magnetic element 120 from failing due to the second conductive element 140 being too long.

[0093] It should be noted that the L5 dimension includes the part of the second conductive element 140 used for contacting conductivity and the part used for providing elastic force. For example, the second conductive element 140 may include an iron cap and a spring fixedly connected to each other along the first direction X. In this case, L5 is the dimension of the iron cap and the spring after they are combined and exposed on the first shell 111.

[0094] It should be noted that the coplanar and parallel relationships defined in this utility model correspond to the ideal state during the design process, and the influence of manufacturing errors and assembly errors needs to be excluded.

[0095] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings under the application concept of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A magnetic vehicle electrical appliance, used in a vehicle, characterized in that, The magnetic vehicle electrical appliance includes: The housing includes a first housing and a second housing connected to each other along a first direction, the first housing being adapted to be inserted into the vehicle's on-board interface along the first direction, and the second housing having a maximum size greater than the first housing in a direction perpendicular to the first direction, the end of the second housing connected to the first housing having a mounting end face; A magnetic component is connected to the second housing. Both the magnetic component and the mounting end face are oriented toward the interface wall where the vehicle interface is located along the first direction, so that the magnetic vehicle electrical appliance can be magnetically connected to the interface wall. A first conductive element is connected to the second shell. Both the first conductive element and the mounting end face are oriented towards the interface wall in the first direction. After the mounting end face contacts the interface wall, the first conductive element can contact the interface wall and obtain electrical energy. Wherein, along the first direction, the end face of the magnetic component that is adapted to face the interface wall is the first end face, and the end face of the first conductive component that is adapted to face the interface wall is the second end face. The first end face and the second end face are coplanar, or the first end face is located on the side of the second end face that is away from the interface wall along the first direction.

2. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The second end face is coplanar with the mounting end face; or, The second end face is located on the side of the mounting end face away from the interface wall along the first direction. The first conductive element is configured to move along the direction from the first shell to the second shell and store a first elastic force after acquiring driving force. After the first elastic force is released, the first elastic force drives the first conductive element to move along the direction from the second shell to the first shell.

3. The magnetic vehicle electrical appliance according to claim 1, characterized in that, Along a direction perpendicular to the first direction, the cross-section of the second shell has a first end, a second end, a third end, and a fourth end arranged sequentially in a circumferential direction surrounding the first direction. Along a second direction perpendicular to the first direction, the first end and the third end are arranged opposite to each other. Along a third direction perpendicular to both the first and second directions, the second end and the fourth end are arranged opposite to each other. Along the third direction, the maximum distance between the first end and the third end is L1, and along the second direction, the maximum distance between the second end and the fourth end is L2, satisfying: 28mm≤L1≤32mm, 23.5mm≤L2≤27.5mm.

4. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The maximum dimension of the second shell along the first direction is L3, and satisfies: 3mm≤L3≤8mm.

5. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The maximum dimension of the first shell along the first direction is L4, and satisfies: 27.5mm≤L4≤31mm.

6. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The magnetic vehicle electrical appliance also includes a second conductive element, which is connected to the end of the first shell away from the second shell along the first direction. The second conductive element is configured to move along the direction from the first shell to the second shell and store a second elastic force after acquiring driving force. After the second elastic force is released, the second elastic force drives the second conductive element to move along the direction from the second shell to the first shell. The maximum dimension of the second conductive element along the first direction is L5, and satisfies: 4.5mm≤L5≤8.5mm.

7. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The second shell has a cavity, and the mounting end face has a through hole communicating with the cavity. The magnetic component includes a first magnetic part and a second magnetic part connected to each other along the first direction. The first magnetic part is located in the cavity, and along the first direction, the second magnetic part passes through the through hole and its end is coplanar with the mounting end face.

8. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The second shell includes a shell body and a mounting member. The second shell has a cavity, and the mounting member has a through hole communicating with the cavity. The magnetic member is located in the cavity, and one end of the magnetic member along the first direction is parallel to the mounting end face. When viewed from the direction from the first shell to the second shell, at least a portion of the magnetic member can be exposed through the through hole. The outer periphery of the shell body has a second groove, and the mounting member is fixedly connected to the shell body and located in the second groove. The mounting member can form the mounting end face.

9. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The mounting end face has a second groove, which is recessed towards the side away from the first shell along the first direction. The end of the magnetic element located in the second groove and along the first direction is coplanar with the mounting end face.

10. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The outer periphery of the second shell has a third groove, and at least a portion of the first conductive element is located in the third groove.

11. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The number of the first conductive element and the magnetic element are both multiple, and one first conductive element is provided between every two magnetic elements along the direction surrounding the first direction.

12. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The second shell has a cavity, and the magnetic element is located in the cavity along a direction perpendicular to the first direction. The magnetic element is arranged at a distance from the inner periphery of the second shell.

13. The magnetic vehicle electrical appliance according to claim 1, characterized in that, The magnetic component is connected to the mounting end face, and the magnetic component protrudes from the mounting end face along the first direction so that the magnetic component can contact the interface wall and magnetically connect to the interface wall, and the mounting end face and the interface wall are in indirect contact. And / or, Both the first conductive element and the mounting end face face towards the interface wall in the first direction. The first conductive element is connected to the mounting end face and protrudes from the mounting end face in the first direction, so that the first conductive element can contact the interface wall and obtain electrical energy, and the mounting end face and the interface wall are in indirect contact.