Charging device

Abstract

A charging device including a housing assembly and a charging assembly is disclosed. [Solution] The housing assembly is provided with a housing cavity and a position limiting portion provided in the housing cavity, the position limiting portion having a position limiting surface, the charging assembly includes a movable member and a first charging member, the movable member includes a movable body and an engaging portion provided on the movable body, the first charging member is attached to the movable body, the engaging portion is provided in the housing cavity and has an engaging surface, the engaging surface is at an angle with the first charging plane, in the direction in which the movable body protrudes relative to the housing cavity, the movable body has a first position protruding relative to the housing cavity, and in the first position, the engaging surface is in close contact with the position limiting surface so as to restrict the movable member from moving in a direction perpendicular to the extension direction of the movable member.

Description

Technical Field

[0001] The present invention relates to the technical field of charging devices, and particularly to a charging apparatus.

Background Art

[0002] Charging devices can charge electronic devices such as TWS (True Wireless Stereo) earphones, smartphones, smart watches, etc. By setting the charging structure of the charging device to a telescopic structure, the overall structure of the charging device can be made compact and easy to store. However, in order to meet the needs of sliding and telescoping, a telescopic charging structure generally has an assembly gap left, and due to the existence of the gap, the movement of the charging member during the telescoping process is likely to be unstable.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Embodiments of the present application provide a charging apparatus that can solve the problem of unstable movement of the charging structure during the telescoping process.

Means for Solving the Problems

[0004] The charging apparatus according to embodiments of the present application is a housing assembly provided with an accommodation cavity and a position limiting portion provided in the accommodation cavity inside, a charging assembly including a moving member and a first charging member, the moving member including a moving body and an engaging portion provided on the moving body, the moving member being movably provided in the accommodation cavity such that the moving body can project or contract with respect to the accommodation cavity along its length direction, the first charging member being attached to the moving body and having a first charging plane parallel to the length direction of the moving body, and including The position limiting portion has a position limiting surface, the engaging portion is provided within the housing cavity and has an engaging surface, the engaging surface is at an angle with the first charging plane, the moving body has a first position protruding from the housing cavity, and at the first position, the engaging surface is in close contact with the position limiting surface so as to restrict the moving member from moving in a direction perpendicular to the longitudinal direction of the moving body.

[0005] According to the charging device of the embodiment of the present invention, the position limiting surface of the position limiting part and the engagement surface of the engagement part are set to form an inclined plane, and at the first position of the movable member, the engagement surface is in close contact with the position limiting surface, and the engagement surface and the position limiting surface interact in the longitudinal direction of the movable body, thereby preventing separation of the movable member and the housing assembly, and preventing the movable member from moving relative to the housing assembly in a direction perpendicular to the longitudinal direction of the movable body, so that the electronic device in contact with the first charging plane has high contact stability. In this way, when designing the charging device, it is possible to secure an assembly gap so that the movable member can move smoothly relative to the housing assembly, and when the movable member protrudes to the charging position, the movable member can contact the electronic device due to its high mounting stability.

[0006] To more clearly describe the embodiments of the present application or the technical means in the prior art, the drawings necessary for describing the embodiments or the prior art will be briefly described below. However, it is clear that the drawings in the following description are only a few embodiments of the present application, and a person skilled in the art can obtain other drawings based on these drawings without any creative work. [Brief explanation of the drawing]

[0007] [Figure 1] This is a schematic perspective view of a charging device according to one embodiment of the present invention, in a case where the movable member is in a protruding state. [Figure 2] This is a schematic perspective view of the charging device according to one embodiment of the present invention when the movable member is in a retracted state. [Figure 3]This is a schematic diagram of the cross-sectional structure when the movable member of the charging device according to one embodiment of the present invention is in a protruding state. [Figure 4] This is a schematic perspective view of an intermediate housing according to one embodiment of the present invention. [Figure 5] This is a schematic perspective view of a charging assembly according to one embodiment of the present invention. [Figure 6] This is a schematic perspective view showing a pre-tightening assembly of one embodiment of the present application when it is attached to the charging assembly and the intermediate housing. [Figure 7] This is a top view of a charging assembly according to one embodiment of the present invention when it is attached to the second housing. [Figure 8] This is a schematic diagram of the cross-sectional structure when a pre-tightening assembly of one embodiment of the present application is attached to the charging assembly and the intermediate housing. [Figure 9] This is a schematic diagram of the cross-sectional structure when a pre-tightening assembly of another embodiment of the present application is attached to the charging assembly and intermediate housing. [Modes for carrying out the invention]

[0008] To further clarify the purpose, technical means, and advantages of this application, the application will be described in more detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are for interpretive purposes only and do not limit the application.

[0009] The inventors discovered that by making the charging structure of a charging device expandable, the overall structure of the charging device can be made more compact and easier to store. However, in order to meet assembly needs, expandable charging structures generally have assembly gaps, and the presence of these gaps can easily lead to unstable expansion and contraction of the charging components. Based on this, the present invention provides an embodiment of a charging device.

[0010] Figure 1 is a schematic perspective view of a charging device 10 according to one embodiment of the present invention, the charging device 10 including a housing assembly 100. The housing assembly 100 functions as the basic carrier of the charging device 10 and plays a role in supporting and protecting the other components of the charging device 10. Inside the housing assembly 100 are a housing cavity and a housing opening 1122 communicating with the housing cavity.

[0011] The charging assembly 200 includes a movable member 210 and a first charging member 300, the movable member 210 including a movable body 211, the movable member 210 being movably mounted in the housing cavity along the longitudinal direction H of the movable body so that the movable body 211 can protrude or retract into the housing cavity in the housing opening 1122. The outer surface of the first charging member 300 includes a first charging plane 310, the first charging plane 310 is parallel to the longitudinal direction H of the movable body, the central axis of the first charging plane 310 is perpendicular to the plane in which the housing opening 1122 is located, and the housing opening 1122 is formed in the outer peripheral wall surface 1121 of the housing assembly 100. Preferably, the outer contour of the first charging plane 310 is circular, rectangular or regular polygonal, etc.

[0012] As shown in Figure 1, when the mobile body 211 protrudes relative to the housing cavity 101, a portion of the mobile body 211 protrudes from outside the housing assembly 100, and the first charging plane 310 also protrudes from outside the housing assembly 100, causing the electronic device to come into contact with the first charging plane 310, and the first charging member 300 to charge the electronic device in contact with the first charging plane 310. As shown in Figure 2, when the mobile member 210 retracts relative to the housing cavity 101, the mobile body 211 is housed within the housing cavity 101, and the first charging member 300 is also housed within the housing cavity 101, resulting in a more compact overall structure for the charging device 10, with no protruding parts, a smaller footprint, and easier storage and transport of the charging device 10.

[0013] As shown in Figures 3 and 4, the housing assembly 100 includes a position limiting portion 1011 provided in the housing cavity 101, the position limiting portion 1011 having a position limiting surface 1012, and the movable member 210 includes an engaging portion 212 provided on the outer surface of the movable body 211, as shown in Figures 3 and 5, the engaging portion 212 has an engaging surface 2120, the engaging surface 2120 is at an angle with the first charging plane 310, the movable member 210 has a first position that protrudes from the housing cavity 101, the first position is the maximum position in which the movable member 210 protrudes from the housing cavity 101, and the position limiting surface 1012 abuts against the engaging surface 2120 to prevent the movable member 210 from detaching from the housing assembly 100 when the movable member 210 is in the first position and to restrict the movable body 211 from moving in a direction perpendicular to the longitudinal direction H of the movable body 211.

[0014] In order to facilitate the smooth movement of the movable member 210 within the housing cavity 101, an assembly gap is left between the movable member 210 and the wall surface defining the housing cavity 101 of the housing assembly 100. Therefore, if the protruding portion of the movable member 210 comes into contact with an electronic device or is subjected to an external force, the movable member 210 is prone to shaking due to the presence of the assembly gap. In the embodiment of the present invention, the position of the movable member 210 when it is in the first position is set as the optimal charging position, and the position limiting surface 1012 of the position limiting portion 1011 and the engagement surface 2120 of the engagement portion 212 are set as slopes to improve the stability of the movable member 210 when it is in the first position.

[0015] Specifically, the movable member 210 has a direction M that protrudes relative to the housing cavity 101 and a direction that retracts relative to the housing cavity 101. As shown in Figure 3, in the direction in which the movable body 211 protrudes relative to the housing cavity 101, the engagement surface 2120 of the engagement portion 212 is inclined toward the side closer to the movable body 211. At the first position of the movable member 210, the engagement surface 2120 is in close contact with the position limiting surface 1012. The engagement surface 2120 and the position limiting surface 1012 are connected to the movable body The engaging surface 2120 and the position limiting surface 1012 interact in the longitudinal direction H to prevent separation of the movable member 210 and the housing assembly 100, and the engaging surface 2120 and the position limiting surface 1012 interact in the thickness direction A of the movable body 211 to prevent the movable member 210 from moving relative to the housing assembly 100 in the thickness direction A perpendicular to the movable body, and the thickness direction A of the movable body is perpendicular to the first charging plane 310, thereby providing high contact stability for electronic devices that come into contact with the first charging plane 310. In this way, when designing the charging device 10, it is possible to secure an assembly gap so that the movable member 210 can move smoothly relative to the housing assembly 100, and when the movable member 210 protrudes to the charging position, the movable member 210 can come into contact with the electronic device due to its high mounting stability.

[0016] To understand this, the electronic device needs to contact the first charging plane 310 and, in particular, control the mounting stability of the moving member 210 in a direction perpendicular to the first charging plane 310. In some embodiments, as shown in Figure 5, the engagement portion 212 includes a first engagement block 2121, and the engagement surface 2120 of the first engagement block 2121 is at an angle with a plane perpendicular to the thickness direction A of the moving body 211. When the engagement surface 2120 is in close contact with the position limiting surface 1012, the engagement surface 2120 and the position limiting surface 1012 interact in the thickness direction A of the moving body 211, limiting the position of the moving member 210 in the thickness direction A of the moving body 211. Thus, when the electronic device contacts the first charging plane 310, it has high contact stability in the thickness direction A of the moving body 211.

[0017] In some embodiments, the thickness direction A of the moving body is the direction of gravity. The outer surface of the moving body 211 includes an upper surface 2101 and a lower surface 2102 provided opposite to the direction of gravity. An opening for attaching the first charging member 300 is formed in the upper surface 2101, and the first charging plane 310 of the first charging member 300 is located at the opening of the upper surface 2101. When the moving member 210 protrudes, due to the gap in the direction of gravity between the moving member 210 and the housing assembly 100, the moving member 210 is more likely to move in the direction of gravity. Therefore, a first engaging block 2121 is provided, and the housing assembly 100 has a position limiting portion 1011 provided opposite to the first engaging block 2121 in the direction of gravity. By setting the position limiting surface of the position limiting portion 1011 to be in close contact with the engaging surface 2120 of the first engaging block 2121, the position of the moving member 210 in the direction of gravity is limited.

[0018] The number of the first engaging blocks 2121 provided on the upper surface 2101 of the moving body 211 is one or more.

[0019] In the direction of gravity, when the number of the first engaging blocks 2121 provided on the upper surface 2101 of the moving body 211 is one, in the direction M in which the moving body 211 protrudes with respect to the accommodation cavity 101, the first engaging block 2121 is located behind the first charging plane 310. Further, the first engaging block 2121 extends along the width direction B of the moving body to form an elongated shape. The width direction B of the moving body is parallel to the first charging plane 310 and perpendicular to the thickness direction A of the moving body. The size of the engaging surface 2120 of the first engaging block 2121 increases. In this case, the number of the position limiting portions 1011 corresponding to the engaging surface 2120 of the first engaging block 2121 can be set to one or more. When the number is one, the size of the position limiting surface 1012 of the position limiting portion 1011 in the width direction B of the moving body is the same as the size of the engaging surface 2120 of the first engaging block 2121, and both ends are aligned. When the number is more than one, the plurality of position limiting portions 1011 are provided at intervals and are uniformly distributed in the width direction B of the moving body.

[0020] When the number of the first engagement blocks 2121 provided on the upper surface 2101 of the moving body 211 is plural in the gravity direction, in the direction M in which the moving body 211 protrudes with respect to the accommodation cavity 101, the plurality of first engagement blocks 2121 are located behind the first charging plane 310, and the plurality of first engagement blocks 2121 are arranged at intervals in the width direction B of the moving body. In this case, the number of the position limiting portions 1011 corresponding to the plurality of first engagement blocks 2121 may be one or plural. When the number is one, the position limiting surface 1012 of the position limiting portion 1011 is in close contact with all of the engagement surfaces 2120 of the plurality of first engagement blocks 2121. When the number is plural, the position limiting surfaces 1012 of the plurality of position limiting portions 1011 are in one-to-one close contact with the engagement surfaces 2120 of the plurality of first engagement blocks 2121.

[0021] In some embodiments, all of the first engagement blocks 2121 are provided on the upper surface 2101 of the moving body 211. The housing assembly 100 has a front opening 1101 communicating with the accommodation cavity 101. The moving body 211 sequentially passes through the front opening 1101 and the accommodation opening 1122. The lower surface 2102 of the moving body 211 abuts against the wall surface defining the front opening 1101 of the housing assembly 100. When the moving member 210 is in the first position where it protrudes, the engagement surface 2120 of the first engagement block 2121 is in close contact with the position limiting surface 1012 of the position limiting portion 1011 to limit the position of the moving member 210 in the gravity direction.

[0022] In some other embodiments, it is set such that some of the first engagement blocks 2121 are provided on the upper surface 2101 of the moving body 211 and some other first engagement blocks 2121 are provided on the lower surface 2102 of the moving body 211, and the housing assembly 100 is provided with the position limiting portions 1011 corresponding to these first engagement blocks 2121. Thus, when the moving member 210 is in the first position where it protrudes, the stability of the moving member 210 in the gravity direction can be further increased.

[0023] In some embodiments, the housing assembly 100 includes an intermediate housing 111 having a housing cavity 101 and a front opening 1101 communicating with the housing cavity 101, the front opening 1101 corresponding to a housing opening 1122, and the movable member 210 protrudes from the housing assembly 100, passing sequentially through the housing cavity 101, the front opening 1101 and the housing opening 1122. The wall surface defining the housing cavity 101 of the intermediate housing 111 includes a top wall surface 1105 and a bottom wall surface 1104, the top wall surface 1105 and the bottom wall surface 1104 are provided opposite each other in the thickness direction A of the movable body, the upper surface 2101 and the lower surface 2102 of the movable body 211 are slidably in close contact with the wall surface defining the front opening 1101 of the intermediate housing 111, and the first engagement block 2121 provided on the upper surface 2101 of the movable body 211 is the top wall surface 1 of the intermediate housing 111 When the first engagement block 2121 is provided on the lower surface 2102 of the movable body 211, which is slidably in close contact with 105, a portion of the first engagement block 2121 is slidably in close contact with the bottom wall surface 1104 of the intermediate housing 111. In this way, during the process in which the movable member 210 moves relative to the housing cavity 101, the interaction between the walls allows the movable member 210 to move smoothly along the longitudinal direction H of the movable body, and the contact area is small, resulting in low sliding resistance. Due to assembly tolerances and sliding needs, a certain gap inevitably exists at the sliding contact points of each wall surface. When the movable member 210 is in a protruding state, by setting the engagement surface 2120 of the first engagement block 2121 to be in close contact with the position limiting surface 1012 of the position limiting portion 1011, the movable member 210 is not affected by the gap and can directly have high mounting stability in the direction of gravity when protruding.

[0024] Due to the action of gravity, the movable member 210 needs to contact the bottom wall surface 1104 of the housing cavity 101. In some embodiments, as shown in Figure 6, a plurality of perforated grooves 11 are formed in the bottom wall surface 1104 to reduce the contact area between the movable body 211 and the bottom wall surface 1104, thereby facilitating the smooth movement of the movable member 210. In some other embodiments, when the first engagement block 2121 is not provided on the lower surface 2102 of the movable body 211, a guide groove is provided on one of the bottom wall surface 1104 and the lower surface 2102 of the movable body 211, and a guide bar 1123 is provided on the other. The guide groove extends along the longitudinal direction H of the movable body 211, and the guide bar 1123 is slidably mounted within the guide groove to guide the movable member 210 to move along the longitudinal direction H of the movable body. As shown in Figure 6, a single protrusion is formed between two adjacent openwork grooves 11a on the bottom wall surface 1104, and the two protrusions each form two guide bars 1123. Guide grooves corresponding one-to-one to the two guide bars 1123 are formed on the lower surface 2102 of the movable body 211.

[0025] In some embodiments, as shown in Figure 7, the number of first engagement blocks 2121 is multiple, and the engagement surfaces 2120 of the multiple first engagement blocks 2121 are provided axially symmetric with respect to a first plane, and the first plane passes through the central axis of the first charging plane 310 and is perpendicular to the first charging plane 310, so that the engagement surfaces 2120 of the multiple first engagement blocks 2121 make close contact with the position limiting surface 1012 of the corresponding position limiting portion 1011, receive force uniformly, and have higher position limiting stability with respect to the moving member 210. Similarly, when the number of first engagement blocks 2121 is one, the engagement surface 2120 of the first engagement block 2121 is also provided axially symmetric with respect to the first plane.

[0026] In some embodiments, the engaging portion 212 includes a second engaging block 2122, the engaging surface 2120 of the second engaging block 2122 being at an angle with a plane perpendicular to the width direction B of the movable body 211, the housing assembly 100 being provided with a position limiting portion 1011 corresponding to the second engaging block 2122, the movable member 210 protruding to a first position, the engaging surface 2120 of the second engaging block 2122 being in close contact with the position limiting surface 1012 of the corresponding position limiting portion 1011, and limiting the position of the movable member 210 in the width direction B of the movable body.

[0027] In some embodiments, the moving body 211 has a rectangular outer contour in cross-section in a direction perpendicular to the longitudinal direction H of the moving body, specifically, the moving body 211 includes two sides 2103 facing each other in the width direction B of the moving body, each side 2103 is connected between the upper surface 2101 and the lower surface 2102 of the moving body 211, and the number of second engagement blocks 2122 is multiple, with some second engagement blocks 2122 provided on one side 2103 of the moving body 211 in the width direction B of the moving body, and other some second engagement blocks 2122 provided on the other side 2103 of the moving body 211, in the direction in which the moving body 211 protrudes toward the housing cavity 101 The engagement surfaces 2120 of the second engagement blocks 2122, each provided on opposite sides of the first engagement block 2121, are close to each other, and the second engagement block 2122 and the first engagement block 2121 engage to restrict the movable member 210 to the first position from multiple directions, further improving the mounting stability of the movable member 210 in the first position. Furthermore, by increasing the number of second engagement blocks 2122, the area of ​​contact between the movable member 210 and the housing assembly 100 is increased, improving structural strength, preventing a decrease in the area when a single first engagement block 2121 acts on the housing assembly 100, and further preventing separation of the movable member 210 and the housing assembly 100.

[0028] In some embodiments, the engagement surface 2120 of the second engagement block 2122 provided on one side of the moving body 211 and the engagement surface 2120 of the second engagement block 2122 provided on the other side of the moving body 211 are provided axially symmetric with respect to the first plane in the width direction B of the moving body, thereby further improving the positional restriction stability of the second engagement block 2122 with respect to the moving member 210 in the width direction B of the moving body. The walls defining the housing cavity 101 of the intermediate housing 111 further include a left wall 1105 and a right wall 1104. In the process of the movable member 210 moving along the longitudinal direction H of the movable body, a second engagement block 2122 provided on one side of the movable body 211 slidably adheres to the left wall 1105, and a second engagement block 2122 provided on the other side of the movable body 211 slidably adheres to the right wall 1104. The two sides 2103 of the movable body 211 each slidably adhere to the walls defining the front opening 1101 of the intermediate housing 111, reducing the contact area and allowing the movable member 210 to slide smoothly, guiding the movable member 210 to move along the longitudinal direction H of the movable body. Similarly, due to sliding needs and assembly gaps, a certain gap exists between each wall surface of the sliding contact point. When the movable member 210 is in the first position, the engaging surface 2120 of the second engaging block 2122 comes into close contact with the position limiting surface 1012 of the corresponding position limiting portion 1011, thereby eliminating the effect of the gap and limiting the position of the movable member 210 in the width direction B of the movable body.

[0029] In some embodiments, the charging device 10 further includes a press-type locking assembly and a ejection assembly 800, the press-type locking assembly locks the position of the moving member 210 relative to the housing cavity 101 when the moving member 210 is retracted into the housing cavity 101, and after the press-type locking assembly is released from the moving member 210, the ejection assembly 800 biases the moving member 210 to move along the longitudinal direction H of the moving body and protrude from the housing assembly 100. The number of ejection assemblies 800 is multiple sets, and the multiple sets of ejection assemblies 800 are arranged axially with respect to the first plane. The engagement surfaces 2120 of the second engagement blocks 2122, each provided on opposite sides of the movable body 211, are also arranged axially with respect to the first plane. In this way, when the multiple sets of ejection assemblies 800 push out the movable member 210, the force acting on the housing assembly 100 by the second engagement blocks 2122, each provided on opposite sides of the movable body 211, is more uniform, preventing the movable member 210 from oscillating in the plane where the first charging plane 310 is located due to uneven force acting on the housing assembly 100.

[0030] In some embodiments, the ejection assembly 800 includes an elastic member 810 which biases the movable body 211 to protrude toward the housing cavity 101 by an action that restores its elastic deformation, and the walls defining the housing cavity 101 of the housing assembly 100 include a front wall 1102 and a rear wall 1102 which are provided opposite to each other along the longitudinal direction H of the movable body, and a front opening 1101 is formed in the front wall 1102, and the elastic member 810 is set so that one end is attached to the rear wall 1102 and the other end faces the front wall 1102. Often, when releasing the lock on the movable member 210 of a press-type lock assembly, the elastic member 810 stretches and recovers its elastic deformation, pushing out the movable member 210 and causing it to protrude from the housing assembly 100. Alternatively, the elastic member 810 may be configured such that one end is attached to the front wall surface 1102 and the other end faces the rear wall surface 1102, and when releasing the lock on the movable member 210 of the press-type lock assembly, the elastic member 810 contracts and recovers its elastic deformation, pulling back the movable member 210 and causing it to protrude from the housing assembly 100.

[0031] In some embodiments, the ejection assembly 800 further includes a position limiting rod 820, and the moving body 211 has a plurality of position limiting holes toward the rear wall surface 1102, the plurality of position limiting holes provided in a one-to-one correspondence with the position limiting rod 820 of a plurality of ejection assemblies, the axial direction of the position limiting rod 820 is parallel to the longitudinal direction H of the moving body, one end of the position limiting rod 820 is attached to the rear wall surface 1102 and the other end extends into the position limiting hole of the moving body 211, and the outer surface of the position limiting rod 820 is slidably in contact with the wall surface defining the position limiting hole of the moving body 211 so as to guide the moving member 210 to move along the longitudinal direction H of the moving body. The elastic member 810 may be a telescopic spring, which is fitted onto the outer circumference of the position limiting rod 820 and guides the telescopic spring to telescopically extend and contract along the longitudinal direction H of the moving body by the position limiting rod 820.

[0032] As shown in Figure 6, the charging device 10 further includes a pre-tightening assembly including a first pre-tightening portion 910 and a second pre-tightening portion 920. The first pre-tightening portion 910 is attached to the housing assembly 100, and the second pre-tightening portion 920 is attached to the movable body 211. The engagement of the first pre-tightening portion 910 with the second pre-tightening portion 920 causes the engagement surface 2120 of the engagement portion 212 to contact the position limiting surface 1012 of the position limiting portion 1011, thereby limiting the position of the movable member 210 in the longitudinal direction H of the movable body, preventing the movable member from contracting under the action of a minor external force, and improving the contact density between the engagement surface 2120 and the position limiting surface 1012. This further improves the position of the movable member 210 in a direction perpendicular to a predetermined central axis, thereby improving the mounting stability of the movable member 210 in its first position.

[0033] In some embodiments, one of the first pre-tightening portion 910 and the second pre-tightening portion 920 is magnetic, and the other is magnetic or contains iron material, and the first pre-tightening portion 910 and the second pre-tightening portion 920, through magnetic action, bring the position limiting surface 1012 of the position limiting portion 1011 into contact with the engagement surface 2120 of the engagement portion 212, and facilitate the contraction of the movable member 210 into the housing cavity 101 by applying a certain force.

[0034] The first pre-tightening portion 910 has a first apex 911 and a second apex 912 that are positioned opposite each other along the longitudinal direction H of the movable body, and in the direction M in which the movable member 210 protrudes toward the housing cavity 10a, the first apex 911 is located in front of the second apex 912.

[0035] In some embodiments, when the first pre-tightening portion 910 and the second pre-tightening portion 920 bring the position limiting surface 1012 into contact with the engagement surface 2120 by magnetic attraction, the first pre-tightening portion 910 is magnetic, and its magnetic center is located at the first apex 911, and in the direction M in which the movable body 211 protrudes relative to the housing cavity 101, the first apex 911 is located in front of the second pre-tightening portion 920, and the magnetic attraction between the first pre-tightening portion 910 and the second pre-tightening portion 920 can pull the second pre-tightening portion 920 closer to the first pre-tightening portion 910 so that the position limiting surface 1012 can be brought into contact with the engagement surface 2120. In this case, the second pre-tightening portion 920 may or may not be magnetic.

[0036] In some embodiments, as shown in Figure 8, the distance from the second apex 912 to the front opening 1101 in the direction in which the movable body 211 protrudes from the housing cavity 101 may be set to be smaller than the distance from the second apex 912 to the rear wall surface 1102, so that the area covered by the first pre-tightening portion 910 in the direction of movement of the movable member 210 is small, in which case the second pre-tightening portion 920 moves to an area near the first pre-tightening portion 910 and then the position limiting surface 1012 is brought into contact with the engagement surface 2120 by magnetic attraction. Preferably, if the ejection assembly includes an elastic member 810, the elastic member 810 biases the movable member 210 to move the second pre-tightening portion 920 to an area near the first pre-tightening portion 910, and the elastic member 810 is connected to the movable body 211 throughout the entire movement process of the movable member 210.

[0037] In some embodiments, as shown in Figure 9, in the direction M in which the movable body 211 protrudes relative to the housing cavity 101, the distance from the second top end 912 to the front opening 1101 is greater than or equal to the distance from the second top end 912 to the rear wall surface 1102, the first pre-tightening part 910 is magnetic, and the magnetic center of the first pre-tightening part 910 is located at the first top end 911, thereby increasing the area covered by the first pre-tightening part 910 in the direction of movement of the movable member 210, the second pre-tightening part can receive the attractive force of the first pre-tightening part 910 when it is far from the front opening 1101, and furthermore, the magnetic attractive force between the first pre-tightening part and the second pre-tightening part causes the movable member 210 to protrude from the housing cavity 101. Preferably, if the ejection assembly includes an elastic member 810, the elastic member 810 provides a pressing force to activate the moving member 210, and then the magnetic attraction between the first pre-tightening portion 910 and the second pre-tightening portion 920 moves the second pre-tightening portion 920 toward the magnetic center of the first pre-tightening portion 910, further causing the moving member 210 to protrude from the housing cavity 101. During the movement of the moving member 210, the elastic member 810 is separable from the moving member 210, and the second pre-tightening portion 920 moves toward one end closer to the magnetic center of the first pre-tightening portion 910, and further causes the position limiting surface 1012 to abut against the engagement surface 2120.

[0038] In some other embodiments, the length of the elastic member 810 may be set shorter if the distance from the second apex 912 to the front opening 1101 in the direction in which the movable body 211 protrudes from the housing cavity 101 is less than the distance from the second apex 912 to the rear wall surface 1102. In the process of the movable member 210 protruding from the housing cavity 101, the elastic member 810 and the movable member 210 are separated. Alternatively, if the distance from the second apex 912 to the front opening 1101 in the direction in which the movable body 211 protrudes from the housing cavity 101 is greater than or equal to the distance from the second apex 912 to the rear wall surface 1102, the length of the elastic member 810 may be set longer, and the elastic member 810 remains connected to the movable member 210 throughout the entire process of the movable member 210's movement.

[0039] In some other embodiments, the first pre-tightening portion 910 may be configured not to be magnetic, and in the direction M in which the movable body 211 protrudes toward the housing cavity 101, the first apex 911 is located in front of the second pre-tightening portion 920, and similarly, the magnetic attraction between the first pre-tightening portion 910 and the second pre-tightening portion 920 can pull the second pre-tightening portion 920 toward the first pre-tightening portion 910, thereby bringing the position limiting surface 1012 into contact with the engagement surface 2120.

[0040] In some embodiments, both the first pre-tightening portion 910 and the second pre-tightening portion 920 are magnetic, and the first pre-tightening portion 910 and the second pre-tightening portion 920 bring the position limiting surface 1012 into contact with the engagement surface 2120 by magnetic repulsion. Preferably, the second pre-tightening portion 920 is positioned adjacent to the rear wall surface of the housing assembly 100 so that the magnetic repulsion between the first pre-tightening portion 910 and the second pre-tightening portion 920 biases the movable member 210 to push out of the housing cavity 10a along the length of the movable body. The embodiment of the present application does not limit the mounting position of the first pre-tightening portion 910 in the housing assembly 100, and it is sufficient that the mounting position of the first pre-tightening portion 910 satisfies the following conditions, namely that the direction in which the movable member 210 is moved by the magnetic repulsive force between the first pre-tightening portion 910 and the second pre-tightening portion 920 is the same as the direction in which the movable member 210 is moved by the ejection assembly, so that when the movable body 211 is in the first position, the position limiting surface 1012 can contact the engagement surface 2120.

[0041] In some embodiments, the press-type lock assembly includes a press-type latch 610 and a buckle. The press-type latch 610 is located on the movable member 210, and the buckle is located on the housing cavity 101. The press-type latch 610 employs a self-locking design, so that when pressed against the buckle, it can engage with and lock onto the buckle, and when pressed against the buckle again, it can release the buckle and unlock. For example, when the movable member 210 is retracted into the housing cavity 101, the press-type latch 610 and the buckle engage and lock the movable member 210, and when the movable member 210 is pressed, the press-type latch 610 is pressed against the buckle, in which case the lock between the press-type latch 610 and the buckle is released, and the movable member 210 protrudes from the housing cavity 101 by the drive of the elastic member 810. When it is necessary to store the movable member 210, the movable member 210 is pushed back into the housing cavity 101, in which case the push-type latch 610 is again pressed against the buckle, and the push-type latch 610 engages with the buckle again to lock the movable member 210. The self-locking design of the push-type latch 610 is within the scope of understanding of those skilled in the art and is therefore omitted from this explanation.

[0042] In some embodiments, the intermediate housing 111 having a housing cavity 101 includes a first housing 1111 and a second housing 1112, the first housing 1111 and the second housing 1112 being arranged opposite each other along the thickness direction A of the moving body and joined to define the housing cavity 101 and a front opening 1101 communicating with the housing cavity 101, and at least one of the first housing 1111 and the second housing 1112 having a position limiting portion 1011. By using a separate design for the intermediate housing 111, the machining of the intermediate housing 111 is made easier and structural members such as the moving member 210 and ejection assembly are made easier to install inside the housing cavity 101.

[0043] The housing assembly 100 includes a housing body 110, and the charging assembly 200 is provided on the housing body 110, the housing body 110 includes a circumferential side wall surface 1121, the circumferential side wall surface 1121 is provided with a housing opening 1122, the housing opening 1122 is provided corresponding to a front opening 1101 so that the housing opening 1122 communicates with a housing cavity 101, and the portion of the movable member 210 that protrudes from the housing assembly 100 is located on the side of the housing assembly 100 as the movable body 211 is inserted through the housing opening 1122 and protrudes or retracts relative to the housing cavity 101. Specifically, the housing body 110 includes a case 112 and an intermediate housing 111, the intermediate housing 111 is provided in the internal space of the case 112, and the outer circumferential wall surface of the case 112 is the circumferential side wall surface 1121 of the housing body 110.

[0044] The first charging member 300 of the charging assembly 200 is located inside the mobile body 211 and charges an electronic device placed on the first charging plane 310. When the charging assembly 200 is provided, the positions of structural members such as the mobile member 210 and the first charging member 300 of the charging assembly 200 can be arranged based on the counterweight, thereby distributing the entire counterweight of the charging assembly 200 symmetrically with respect to a predetermined central axis.

[0045] The charging device 10 further includes a second charging member 400, the second charging member 400 having a second charging plane 410, and charging an electronic device placed on the second charging plane 410. In the thickness direction A of the mobile body 211, a portion of the second charging member 400 is mounted inside the housing body 211 and located on one side of the first charging member 300, and the second charging member 400 has a second charging plane 410 exposed on the outer surface of the housing body, and charging an electronic device placed on the second charging plane 410. Preferably, again as shown in Figure 3, in the direction of gravity, the second charging member 400 is located above the first charging member 300, and the housing body 110 further includes an intermediate wall, the outer surface of which an opening is formed for mounting the second charging member 400 so that the second charging plane 410 is exposed on the outer surface of the housing body 110.

[0046] The charging device 10 further includes a third charging member 500, which has a third charging plane 510 and charges an electronic device placed on the third charging plane 510. The housing assembly 100 further includes a flip cover 130, which is rotatably mounted to the housing body 110 with respect to an intermediate wall and has a top wall facing away from the intermediate wall, the top wall having an opening for accommodating the third charging member 500 such that the third charging plane 510 is exposed on the outer surface of the flip cover 130. The flip cover 130 has an open state and a closed state, in the closed state it is located above the housing body 110 and in the open state it is positioned at an angle to the second charging plane 410 so as to expose the second charging plane 410, so that an electronic device can be placed on the second charging plane 410 and charged.

[0047] The first charging member 300, the second charging member 400, and the third charging member 500 in the embodiment of the present application may be wireless charging members, and charge electronic devices such as smartwatches using a wireless charging method. The first charging member 300, the second charging member 400, and the third charging member 500 can support MagSafe charging connection technology, and electronic devices with magnetic attraction functions can be charged by coming into close proximity to the first charging member 300, the second charging member 400, and the third charging member 500, thereby self-attracting to the corresponding charging member and establishing an electrical connection.

[0048] The first charging member 300, the second charging member 400, and the third charging member 500 each charge different electronic devices. In other words, the first charging member 300, the second charging member 400, and the third charging member 500 in this embodiment can charge three electronic devices simultaneously. For example, by operating the movable member 210 of the charging assembly 200 to pop out from the housing assembly 100, a smartwatch can be placed on the first charging plane 310 and charged by the first charging member 300; by closing the flip cover 130, a smartphone can be placed on the third charging plane 510 of the flip cover 130 and charged by the third charging member 500; and after opening the flip cover 130, the second charging plane 410 of the housing body 110 can be opened, and earphones (e.g., TWS earphones) can be placed on the second charging plane 410 and charged by the second charging member 400. Because the structures of the first charging member 300, the second charging member 400, and the third charging member 500 are compact, the overall volume of the charging device 10 is small, and the space occupied by the charging device 10 is small. In other words, the charging device 10 of this embodiment can realize a 3-in-1 charging module design for smartwatches, smartphones, and earphones in a small volume.

[0049] In one embodiment, the charging device 10 further includes a circuit board 600 and a power interface 700. The circuit board 600 is provided in the internal space of the housing assembly 100 and is also electrically connected to the power interface 700. The first charging member 300, the second charging member 400, and the third charging member 500 are all electrically connected to the circuit board 600. The power interface 700 is electrically connected to an external power source and transmits electrical energy supplied from the external power source to the first charging member 300, the second charging member 400, and the third charging member 500, respectively, via the circuit board 600.

[0050] In one embodiment, the charging device 10 does not have a power source, and the first charging member 300, the second charging member 400, and the third charging member 500 are all electrically connected to an external power source via a circuit board 600 and a power interface 700, and it is necessary to supply electrical energy from the external power source to charge the electronic device. Naturally, in some other embodiments, a power source may be provided inside the housing assembly 100 of the charging device 10, and power may be supplied from this power source to the first charging member 300, the second charging member 400, and the third charging member 500 to further charge the electronic device, but this is not limited here.

[0051] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In this description, directions or positional relationships expressed by terms such as "up," "down," "left," and "right" are directions or positional relationships based on the illustrations and are merely for the purpose of describing this application and simplifying the description. It should be understood that these do not indicate or suggest that the devices or elements mentioned have a specific direction, or that they must be configured and operated in a specific direction. Therefore, the terms used to describe positional relationships in the drawings are merely illustrative and should not be understood as limiting this patent. A person skilled in the art will be able to understand the specific meaning of these terms depending on the specific situation.

[0052] The foregoing description is merely a preferred embodiment of the present application and does not limit it. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application should all be included within the scope of protection. [Explanation of symbols]

[0053] 10 Charging device 100 Housing Assembly 110 Housing body 111 Intermediate Housing 101 containment cavities 1101 Front opening 1102 Front wall 1103 Rear wall 1104 Bottom wall 1111 First Housing 1112 Second Housing 112 cases 1121 Outer wall surface 1122 Retractable opening 1011 Position restriction section 1012 Position restriction surface 11a Perforated groove 130 Flip Cover 1123 Guide Bar 200 Charging Assembly 210 Moving member 211 Mobile Unit 2101 Top side 2102 Bottom surface 2103 Side view 212 Engaging part 2121 First engagement block 2122 Second Engagement Block 2120 Engagement surface 300 First charging component 310 1st charging plane 400 Second charging element 410 1st charging plane 500 Third charging component 510 3rd charging plane 600 circuit boards 700 Interfaces 800 ejection assembly 810 Elastic member 820 Position Restriction Rod 610 Press-type latch 900 Pre-tightening assembly 910 First preliminary tightening section 920 Second Pre-tightening Section H in the length direction A: Thickness direction B Width direction

Claims

1. A housing assembly having a housing cavity and a position limiting portion provided in the housing cavity, A first charging member, a moving body, and a moving member including an engaging portion provided on the moving body, Includes, The movable member is configured to be extendable relative to the housing cavity, The engaging portion is configured such that the moving member contacts the position limiting portion, thereby restricting the moving member from moving in a direction perpendicular to the extension direction of the moving member. A charging device characterized by the following features.

2. The first charging member has a first charging plane parallel to the extension direction of the moving member, the position limiting portion has a position limiting surface, the engaging portion is provided in the housing cavity and has an engaging surface, the engaging surface is at an angle with the first charging plane, the moving body has a first position protruding from the housing cavity, and at the first position, the engaging surface is in close contact with the position limiting surface so as to restrict the moving member from moving in a direction perpendicular to the extension direction of the moving member. The charging device according to feature 1.

3. The engagement portion includes a first engagement block, and the engagement surface of the first engagement block is angled with a plane perpendicular to the thickness direction of the moving body so as to restrict the movement of the moving member in the thickness direction of the moving body when the engagement surface of the first engagement block is in close contact with the position limiting surface. The thickness direction of the moving body is perpendicular to the first charging plane. The charging device according to feature 2.

4. The outer surface of the moving body includes an upper surface and a lower surface provided opposite to each other in the thickness direction of the moving body, The first engagement block is provided on the upper surface of the movable body, The charging device according to feature 3.

5. The housing assembly has a front opening that communicates with the housing cavity, the movable body is inserted through the front opening, and the lower surface of the movable body abuts against a wall surface that defines the front opening of the housing assembly. The charging device according to feature 4.

6. The wall surface defining the housing cavity of the housing assembly includes a bottom wall surface, and a guide groove is provided on one of the bottom wall surface and the lower surface of the movable body, and a guide bar is provided on the other, the guide groove extends along the extension direction of the movable member, and the guide bar is slidably provided within the guide groove to guide the movable member to move along the extension direction of the movable member. The charging device according to feature 4.

7. The number of the first engagement blocks is at least one, and the engagement surface of the first engagement block is provided axially symmetric with respect to a first plane, and the first plane passes through the central axis of the first charging plane and is perpendicular to the first charging plane. The charging device according to feature 3.

8. The engagement portion includes a second engagement block, the engagement surface of the second engagement block is at an angle with a plane perpendicular to the width direction of the moving body, the width direction of the moving body is parallel to the first charging plane and perpendicular to the extension direction of the moving member. The charging device according to feature 2 or 3.

9. The number of the second engagement blocks is multiple, and in the width direction of the moving body, some of the second engagement blocks are provided on one side of the moving body, and other parts of the second engagement blocks are provided on the other side of the moving body. The charging device according to feature 8.

10. Along the direction in which the movable body protrudes from the housing cavity, the engagement surface of the engagement portion is inclined toward the side closer to the movable body. The charging device according to feature 2.

11. The ejection assembly further includes an elastic member, the elastic member biasing the movable member to protrude outward from the housing cavity by an action that restores elastic deformation, The number of ejection assemblies is multiple sets, and the multiple sets of ejection assemblies are arranged axially with respect to a first plane, the first plane passing through the central axis of the first charging plane and perpendicular to the first charging plane. The charging device according to feature 2.

12. The pre-tightening assembly further includes a first pre-tightening portion and a second pre-tightening portion, wherein the first pre-tightening portion is attached to the housing assembly and the second pre-tightening portion is attached to the movable body. Both the first pre-tightening portion and the second pre-tightening portion are magnetic, and the first pre-tightening portion and the second pre-tightening portion bring the position limiting surface into contact with the engagement surface through magnetic action. The charging device according to feature 2 or 11.

13. The first pre-tightening portion and the second pre-tightening portion bring the position limiting surface into contact with the engagement surface by magnetic attraction, or The first pre-tightening portion and the second pre-tightening portion bring the position limiting surface into contact with the engagement surface by magnetic repulsion. The charging device according to feature 12.

14. The first pre-tightening portion has a first and second apex provided opposite to each other along the extension direction of the movable member, and in the direction in which the movable member protrudes toward the housing cavity, the first apex is located in front of the second apex. When there is a magnetic attraction between the first pre-tightening portion and the second pre-tightening portion, the first pre-tightening portion is magnetic, the magnetic center of the first pre-tightening portion is located at the first apex, and at the first position and in the direction in which the movable member protrudes toward the housing cavity, the first apex is located in front of the second pre-tightening portion. The charging device according to feature 13.

15. The housing assembly includes the housing body and the flip cover, The charging device further comprises a second charging member, at least a portion of which is disposed inside the housing body, The second charging member is configured to have a second charging plane exposed on the outer surface of the housing body and to charge an electronic device placed on the second charging plane. The charging device further includes a third charging member on the flip cover, The flip cover is rotatably mounted on the housing body with respect to the second charging plane and is configured to charge another electronic device placed on the third charging plane. The charging device according to feature 1.

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