Charging structure and intelligent wearable device

Abstract

The utility model discloses a charging structure and an intelligent wearable device, the charging structure comprises a casing, a circuit board, a lithium battery, at least two supports, at least two charging elastic sheets and at least two PIN assemblies, the casing is provided with an accommodating space and at least two mounting holes, and the mounting holes penetrate from the inner side wall of the accommodating space to the outer side wall of the casing; the circuit board is mounted in the accommodating space; the lithium battery is mounted in the accommodating space and is electrically connected with the circuit board; the support is located in the containing space, and the support is installed on the circuit board and electrically connected with the circuit board. The charging elastic sheet is positioned in the accommodating space and is fixed on the corresponding bracket; the PIN assemblies are used for being connected with an external charger, one ends of the PIN assemblies are installed in the corresponding installation holes, and the other ends of the PIN assemblies abut against the corresponding charging elastic pieces. According to the charging structure, the number of parts is small, too much space is not occupied, the assembling process is greatly optimized, and reliable charging connection can be achieved in an ultra-narrow space.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic product charging structure technical field especially, it relates to a charging structure and intelligent wear equipment. BACKGROUND

[0002] The market's intelligent wear equipment is full of various types, such as intelligent bracelet and smart watch etc. let people's daily life be more and more convenient, and the chargeable function is vital to the intelligent wear equipment. At present, the majority of intelligent wear equipment on the market adopts POGOPIN to charge, that is, the PIN needle is exposed on the back of the bottom shell of the host computer to be connected to the charger to charge, and it is found that this design cannot meet the waterproof requirement, after all, wrist sweat will corrode the surface of PIN needle. But the case of exposing PIN needle on the side to connect the charger is relatively rare, and the conventional host computer side charging scheme often adopts "POGOPIN assembly + FPC assembly + steel sheet support + increase the connecting seat on the mainboard" or "solid PIN needle + charging spring piece + FPC assembly + steel sheet support + increase the connecting seat on the mainboard" structure.

[0003] However, in the above scheme, the POGOPIN assembly contains the adapter seat connected with the mainboard, the FPC assembly contains the flexible flat cable, and the mainboard is additionally provided with the connecting seat, and these side charging schemes have the problems of many parts, complex assembly and large space occupation. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of charging structure and intelligent wear equipment, to solve the conventional host computer side charging scheme often adopts "POGOPIN assembly + FPC assembly + steel sheet support + increase the connecting seat on the mainboard" or "solid PIN needle + charging spring piece + FPC assembly + steel sheet support + increase the connecting seat on the mainboard" structure, POGOPIN assembly contains the adapter seat connected with the mainboard, FPC assembly contains the flexible flat cable, and the mainboard is additionally provided with the connecting seat, and these side charging schemes have the technical problems of many parts, complex assembly and large space occupation.

[0005] The utility model is realized as follows:

[0006] The utility model provides a kind of charging structure, including:

[0007] Shell, the shell is equipped with containing space and at least two mounting holes, the mounting hole is from the inside wall of the containing space and is penetrated to the outside wall of the shell;

[0008] Circuit board, the circuit board is installed in the containing space;

[0009] Lithium battery, the lithium battery is installed in the containing space and is electrically connected with the circuit board;

[0010] At least two brackets, which are located in the accommodation space, mounted on the circuit board and electrically connected to the circuit board;

[0011] At least two charging spring pieces, which are located in the accommodation space and fixed on the corresponding brackets;

[0012] At least two PIN needle assemblies, which are used to connect with an external charger. One end of the PIN needle assembly is mounted in the corresponding mounting hole, and the other end abuts against the corresponding charging spring piece.

[0013] Further, the mounting hole includes a first hole segment and a second hole segment connected in sequence. The inner diameter of the first hole segment is larger than that of the second hole segment, and the second hole segment communicates with the accommodation space;

[0014] The PIN needle assembly includes a PIN needle and a snap ring. The PIN needle includes a charging rod and a rod head for connecting with an external charger. The outer diameter of the rod head is larger than that of the charging rod. The rod head is located in the first hole segment. One end of the charging rod is connected to the rod head, and the other end passes through the second hole segment and abuts against the charging spring piece. A first annular groove is provided on the outer side wall of the charging rod on one side of the accommodation space, and the snap ring is clamped on the first annular groove.

[0015] Further, the PIN needle assembly further includes a waterproof ring. A second annular groove is further provided on the outer side wall of the charging rod, which is located between the first annular groove and the rod head. The waterproof ring is mounted on the second annular groove and abuts against the inner wall of the second hole segment.

[0016] Further, the bracket includes a support and three welding feet all protruding from the support. The three welding feet are in a "pin" shape. The circuit board has a plurality of welding holes, and each welding foot is respectively welded in the corresponding welding hole. The charging spring piece is mounted on the support.

[0017] Further, the support includes a support plate, a connecting block, a sealing plate and two side plates. The sealing plate and the two side plates all protrude from one surface of the support plate. The connecting block protrudes from the other surface of the support plate. The welding feet are mounted on the connecting block and the two side plates. The charging spring piece is welded on the support plate.

[0018] Further, a sunken platform is provided on one surface of the support plate away from the charging spring piece for preventing the welding point generated by welding the charging spring piece on the support plate from being too high. <>

[0019] Further, the charging spring sheet comprises a base, a first sheet body, a second sheet body, a third sheet body and a limiting rod, the base is provided with a limiting groove, the first sheet body is bent and extended from the edge of the base to the side away from the base, the second sheet body is bent and extended from the end of the first sheet body away from the base to the side away from the base, the third sheet body is bent and extended from the end of the second sheet body away from the first sheet body to the side close to the base, the limiting rod is arranged at the end of the third sheet body away from the second sheet body, the limiting rod is slidingly installed in the limiting groove, the base is installed on the support, and the PIN pin assembly is abutted at the connection position of the second sheet body and the third sheet body.

[0020] Further, the base comprises two folding plates and a bottom plate installed on the support, the first sheet body and the two folding plates are protruded on the bottom plate, the cross section of the folding plate is "L" shape, and the folding plate and the bottom plate enclose a cavity, and the two cavities constitute the limiting groove.

[0021] Further, the charging structure further comprises at least one magnetic attraction piece for attracting the external charger, and the magnetic attraction piece is installed in the accommodating space.

[0022] The utility model also provides a kind of intelligent wearable equipment, including the charging structure as described above.

[0023] Compared with prior art, the utility model has the beneficial effects that:

[0024] The mounting hole of the utility model is arranged on the side surface of the shell, which can effectively reduce the erosion of wrist sweat on the surface of the PIN pin assembly, has waterproof function, and the circuit board and the charger are connected by the support, the charging spring sheet and the PIN pin assembly, compared with the traditional charging scheme, the charging structure requires fewer parts, does not occupy too much space, greatly optimizes the assembly process, greatly reduces the cost, significantly improves the production efficiency, can realize reliable charging connection in ultra-narrow space, meets the conventional appearance size and lithium battery capacity maximization, realizes the reliable charging scheme of mass production. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model provides the structure diagram of intelligent wearable equipment Figure 1 ;

[0026] Figure 2 The utility model provides the structure diagram of intelligent wearable equipment Figure 1 ;

[0027] Figure 3 The utility model provides the structure diagram of intelligent wearable equipment Figure 2 ;

[0028] Figure 4 is Figure 3 a sectional view along line A-A in

[0029] Figure 5 is Figure 4 a partial exploded view at B in

[0030] Figure 6 is a structural schematic view of a host of an intelligent wearable device provided by an embodiment of the present application;

[0031] Figure 7 is Figure 6 an exploded view;

[0032] Figure 8 is a structural schematic view of a PIN needle assembly provided by an embodiment of the present application;

[0033] Figure 9 is Figure 8 an exploded view;

[0034] Figure 10 is a structural schematic view of a combination of a support, a charging spring sheet and a circuit board provided by an embodiment of the present application;

[0035] Figure 11 is a structural schematic view of a combination of a support and a charging spring sheet provided by an embodiment of the present application;

[0036] Figure 12 is Figure 11 a sectional view;

[0037] Figure 13 is a structural schematic view of a support provided by an embodiment of the present application Figure 1 ;

[0038] Figure 14 is a structural schematic view of a support provided by an embodiment of the present application Figure 2 ;

[0039] Figure 15 is a structural schematic view of a charging spring sheet provided by an embodiment of the present application;

[0040] Figure 16 is a structural schematic view of a charger provided by an embodiment of the present application;

[0041] Figure 17 is Figure 16 an exploded view.

[0042] in the figure:

[0043] 10, host; 11, magnetic element; 20, casing; 21, containing space; 22, mounting hole; 221, first hole section; 222, second hole section; 23, first bottom shell; 24, first cover plate; 30, circuit board; 40, lithium battery; 50, support; 51, support base; 511, support plate; 5111, sunken platform; 512, link block; 513, sealing plate; 514, side plate; 52, solder leg; 60, charging spring piece; 61, base; 611, limiting groove; 612, folded plate; 613, bottom plate; 614, recessed cavity; 62, first piece body; 63, second piece body; 64, third piece body; 65, limiting rod; 70, PIN pin assembly; 71, PIN pin; 711, charging rod; 7111, first annular groove; 7112, second annular groove; 712, rod head; 72, circlip; 73, waterproof ring; 80, charger; 81, power cord; 82, charging shell; 821, storage bin; 822, second through hole; 823, embedded hole; 824, second bottom shell; 825, second cover plate; 83, charging plate; 84, thimble assembly; 841, thimble; 8411, needle head; 8412, needle rod; 842, spring; 843, top base; 8431, sliding cavity; 8432, third hole section; 85, magnetic guide element. DETAILED DESCRIPTION

[0044] The utility model will be further described below in combination with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict.

[0045] Please refer to Figures 1 to 9 As shown in the drawings, the utility model embodiment discloses a charging structure mainly applied to the host 10 of intelligent wearing equipment, and the charging structure includes casing 20, circuit board 30, lithium battery 40, at least two supports 50, at least two charging spring pieces 60 and at least two PIN pin assemblies 70, the casing 20 is equipped with containing space 21 and at least two mounting holes 22, the mounting hole 22 communicates with the containing space 21, and the mounting hole 22 extends from the inner side wall of the containing space 21 to the outer side wall of the casing 20;The circuit board 30, lithium battery 40, support 50 and charging spring piece 60 are all located in the containing space 21, the support 50 is installed on the circuit board 30, the lithium battery 40 and the support 50 are electrically connected with the circuit board 30, the charging spring piece 60 is fixed on the corresponding support 50, one end of the PIN pin assembly 70 is installed in the corresponding mounting hole 22, and the other end is located in the containing space 21 and abuts on the corresponding charging spring piece 60, and the PIN pin assembly 70 is used for being connected with external charger 80, the required parts of the charging structure are few, too much space is not occupied, the assembly process is greatly optimized, the cost is greatly reduced, the production efficiency is significantly improved, reliable charging connection can be realized in ultra-narrow space, and the conventional appearance size and lithium battery 40 capacity maximization are met.

[0046] In the embodiment, the PIN needle assembly 70 comprises a PIN needle 71 and a snap spring 72, the mounting hole 22 comprises a first hole section 221 and a second hole section 222 connected in sequence, the inner diameter of the first hole section 221 is larger than that of the second hole section 222, the second hole section 222 communicates with the accommodating space 21, the PIN needle 71 is in a “T” shape structure, the PIN needle 71 comprises a charging rod 711 and a rod head 712 for connecting with an external charger 80, the outer diameter of the rod head 712 is larger than that of the charging rod 711, the rod head 712 is located in the first hole section 221, one end of the charging rod 711 is connected with the rod head 712 and the other end abuts against the charging spring sheet 60 after passing through the second hole section 222, the charging rod 711 is provided with a first annular groove 7111 on the outer side wall on one side of the accommodating space 21, and the snap spring 72 is clamped on the first annular groove 7111 to fix the PIN needle 71, the PIN needle 71 is made of stainless steel.

[0047] The number of the bracket 50, the charging spring sheet 60, the PIN needle assembly 70 and the mounting hole 22 can be set according to needs, when the number of the PIN needle assembly 70 is more than two, the excessive PIN needle assembly 70 can be used for charging, data transmission or other functions, in the embodiment, the number of the bracket 50, the charging spring sheet 60, the PIN needle assembly 70 and the mounting hole 22 is four, of which two PIN needle assemblies 70 can be used for charging, equivalent to positive and negative poles, and the other two PIN needle assemblies 70 can be used for data transmission, when the host 10 of the smart wearable device is worn on the wrist, the charging and data transmission functions can be realized, the design requirements of ID charging or data transmission on the side can be met, the erosion of wrist sweat on the surface of the PIN needle 71 can be effectively reduced, and many factors such as waterproof, appearance beautification, size limitation of the machine body and internal electronic space demand are considered.

[0048] The PIN needle assembly 70 further comprises a waterproof ring 73, the outer side wall of the charging rod 711 is further provided with a second annular groove 7112, the second annular groove 7112 is located between the first annular groove 7111 and the rod head 712, the waterproof ring 73 is installed on the second annular groove 7112 and abuts against the inner wall of the second hole section 222, so as to prevent the external water from entering the accommodating space 21 from between the PIN needle 71 and the inner wall of the mounting hole 22, so as to meet the waterproof level of 5ATM of the host 10.

[0049] Please further refer to Figures 3 to 7 , and Figures 10 to 15, in this embodiment, the bracket 50 includes a support 51 and three welding feet 52 all protruding from the support 51. The three welding feet 52 are in a "pin" shape. The circuit board 30 has a plurality of welding holes, and each welding foot 52 is respectively welded into the corresponding welding hole, so that the bracket 50 can be accurately and firmly fixed on the circuit board 30. The charging elastic piece 60 is installed on the support 51. The bracket 50 is a stainless steel frame body, and the thickness of the steel sheet of the bracket 50 is 0.2 mm, which plays a role in protecting the charging elastic piece 60 and facilitating chip mounting.

[0050] The support 51 includes a support plate 511, a connecting block 512, a sealing plate 513 and two side plates 514. The support plate 511 is vertically arranged. The sealing plate 513 and the two side plates 514 both protrude from one side of the support plate 511. The connecting block 512 protrudes from the other side of the support plate 511. The sealing plate 513 and the connecting block 512 are respectively located on both sides of the length direction of the support plate 511. The two side plates 514 are respectively located at the left and right ends of the width direction of the support plate 511. The welding feet 52 are installed on the connecting block 512 and the two side plates 514. The charging elastic piece 60 is welded to the support plate 511 by laser spot welding. The support 51 is hemmed on its three sides, which can protect the charging elastic piece 60 and strengthen the strength of the bracket 50 itself.

[0051] In some embodiments, a sunk platform 5111 is provided on the side of the support plate 511 away from the charging elastic piece 60. When the charging elastic piece 60 is welded to the support plate 511, a plurality of welding spots will be generated on its back surface. The welding spots are equivalent to burrs, which will have an adverse effect on the lithium battery 40. The sunk platform 5111 formed by the back surface of the support plate 511 being recessed by 0.2 mm can be used to prevent these welding spots from being too high.

[0052] In this embodiment, the charging spring 60 includes a base 61, a first sheet 62, a second sheet 63, a third sheet 64, and a limiting rod 65. The base 61 is provided with a limiting groove 611. The first sheet 62 extends from the edge of the base 61 to the side away from the base 61. The second sheet 63 extends from the end of the first sheet 62 away from the base 61 to the side away from the base 61. The third sheet 64 extends from the end of the second sheet 63 away from the first sheet 62 to the side close to the base 61. The limiting rod 65 is arranged at the end of the third sheet 64 away from the second sheet 63. The limiting rod 65 is slidingly installed in the limiting groove 611. The base 61 and the first sheet 62, and the second sheet 63 and the third sheet 64 are connected by arc transition. The base 61 is installed on the support 50. The PIN pin assembly 70 abuts at the connection between the second sheet 63 and the third sheet 64. During installation, the PIN pin assembly 70 will compress the charging spring 60. The limiting rod 65 of the charging spring 60 will slide in the limiting groove 611 to adjust the overall volume of the charging spring 60. The charging spring 60 can use a standard part on the market, such as a spring with an electrical model number of 818004618. The thickness of the charging spring 60 is 0.06 mm, and the spring force is small, which can reduce the continuous influence of stress on the circuit board 30 during connection.

[0053] The base 61 includes two flaps 612 and a bottom plate 613 installed on the support 50. The first sheet 62 and the two flaps 612 are protruded on the bottom plate 613. The cross section of the flap 612 is "L" shape. The flap 612 and the bottom plate 613 form a recess 614 arranged through. The two recesses 614 are arranged oppositely. The two recesses 614 constitute the limiting groove 611. Specifically, the base 61 is vertically welded on the support 50. The two recesses 614 are arranged at the two side ends of the base 61. The middle part of the limiting rod 65 is connected with the third sheet 64. The two ends of the limiting rod 65 are respectively inserted into the two recesses 614.

[0054] The charging structure further includes at least one magnetic attraction piece 11 for attracting the external charger 80. The magnetic attraction piece 11 is installed in the containing space 21 to attract the charger 80, so as to charge the host 10 by the charger 80. The number of the magnetic attraction piece 11 is two. The magnetic attraction piece 11 is a magnet.

[0055] The shell 20 includes a first bottom shell 23 and a first cover plate 24. The first cover plate 24 is installed on the first bottom shell 23 and surrounds the first bottom shell 23 to form the containing space 21. Each mounting hole 22 is arranged on the side surface of the first cover plate 24.

[0056] Please further refer to Figures 2 to 7 , and Figures 16 to 17The utility model discloses still disclose a kind of intelligent wearable equipment, including host computer 10 and charger 80, host computer 10 includes display screen and the charging structure as described above, the display screen in host computer 10 can be connected with circuit board 30, charger 80 can be electrically connected with PIN pin assembly 70 in host computer 10, 90 degrees charging and reliable switching of data transmission can be mass-produced in ultra-narrow space (1.09mm inside) are realized, PIN pin assembly 70 appearance face to support 50 vertical back maximum distance 3.2mm inside charging is realized, greatly simplify the charging scheme of conventional adoption, and under the same fuselage size, greater lithium battery 40 effective space is increased, to improve capacity, facilitate assembly, improve yield and production capacity, reach the purpose of comprehensive condition optimization.

[0057] Charger 80 includes power cord 81, charging shell 82, charging plate 83 and at least two needle assembly 84, charging shell 82 includes storage compartment 821, first through-hole and at least two second through-hole 822, first through-hole and second through-hole 822 are all communicated with storage compartment 821, the number of needle assembly 84 and second through-hole 822 is four, charging plate 83 is located in storage compartment 821, one end of power cord 81 is located in storage compartment 821 and is electrically connected with charging plate 83, the other end is connected with external power supply after passing through first through-hole, one end of needle assembly 84 is located in storage compartment 821 and is electrically connected with charging plate 83, the other end is exposed outside charging shell 82 after passing through corresponding second through-hole 822, when charger 80 is abutted on host computer 10, needle assembly 84 is connected with corresponding PIN pin assembly 70, to charge host computer 10 and data transmission.

[0058] Needle assembly 84 includes needle 841, spring 842 and top seat 843, top seat 843 is fixed on charging plate 83, top seat 843 is provided with sliding cavity 8431 and third hole section 8432 communicated with sliding cavity 8431, the inner diameter of third hole section 8432 is less than the inner diameter of sliding cavity 8431, spring 842 is located in sliding cavity 8431, needle 841 includes needle head 8411 and needle stem 8412 connected with needle head 8411, the outer diameter of needle head 8411 is less than the outer diameter of needle stem 8412, needle stem 8412 is slidably installed in sliding cavity 8431 and can press spring 842, needle head 8411 is exposed outside charging shell 82 after passing through third hole section 8432, to facilitate the connection with PIN pin assembly 70, of course, needle assembly 84 can also be other structure forms.

[0059] Charger 80 further includes two magnetic conductive members 85, charging shell 82 is further provided with two embedding holes 823 communicated with storage compartment 821, two magnetic conductive members 85 are installed on two embedding holes 823 respectively, two magnetic conductive members 85 can be respectively attracted to two magnetic attraction members 11, to adsorb charger 80 on host computer 10, magnetic conductive member 85 can be iron products or magnet.

[0060] The charging shell 82 comprises a second bottom shell 824 and a second cover plate 825, the second cover plate 825 is installed on the second bottom shell 824 and encloses the second bottom shell 824 to form the storage compartment 821, the first through hole is arranged on the second bottom shell 824, and the second through hole 822 is arranged on the second cover plate 825.

[0061] In conclusion, the mounting hole 22 is arranged on the side of the shell 20, which can effectively reduce the erosion of wrist sweat on the surface of the PIN pin assembly 70, has a waterproof function, and the circuit board 30 and the charger 80 are connected through the support 50, the charging spring sheet 60 and the PIN pin assembly 70, compared with the traditional charging scheme, the charging structure requires fewer parts, does not occupy too much space, the assembly process is greatly optimized, the cost is greatly reduced, the production efficiency is significantly improved, reliable charging connection can be realized in an ultra-narrow space, and the conventional appearance size and the maximum capacity of the lithium battery 40 are satisfied.

[0062] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of protection of the utility model, and any non-substantial changes and replacements made by the person skilled in the art on the basis of the utility model all belong to the range of protection required by the utility model.

Claims

1. A charging structure, characterized by, The application relates to a lithium battery, which comprises the following parts: a casing, which is provided with a containing space and at least two mounting holes penetrating from the inner side wall of the containing space to the outer side wall of the casing; a circuit board installed in the containing space; a lithium battery installed in the containing space and electrically connected with the circuit board; at least two supports located in the containing space, the supports being installed on the circuit board and electrically connected with the circuit board; at least two charging spring sheets located in the containing space, the charging spring sheets being fixed on the corresponding supports; at least two PIN pin assemblies used for connecting with external chargers, one end of the PIN pin assembly being installed in the corresponding mounting hole and the other end abutting against the corresponding charging spring sheet.

2. The charging structure of claim 1, wherein, The mounting hole comprises a first hole section and a second hole section connected in sequence, the inner diameter of the first hole section being larger than that of the second hole section, and the second hole section being communicated with the containing space; the PIN pin assembly comprises a PIN pin and a circlip, the PIN pin comprising a charging rod and a rod head used for connecting with external chargers, the outer diameter of the rod head being larger than that of the charging rod, the rod head being located in the first hole section, one end of the charging rod being connected with the rod head and the other end abutting against the charging spring sheet after penetrating through the second hole section, and the outer side wall of the charging rod located on one side of the containing space being provided with a first annular groove, the circlip being clamped on the first annular groove.

3. The charging structure of claim 2, wherein, The PIN pin assembly further comprises a waterproof ring, the outer side wall of the charging rod is further provided with a second annular groove, the second annular groove being located between the first annular groove and the rod head, the waterproof ring being installed on the second annular groove and abutting against the inner wall of the second hole section.

4. The charging structure of claim 1, wherein, The support comprises a support base and three welding feet protruding on the support base, the three welding feet being in the shape of "pin", the circuit board is provided with a plurality of welding holes, and each welding foot is welded in the corresponding welding hole, and the charging spring sheet is installed on the support base.

5. The charging structure of claim 4, wherein, The support base comprises a support plate, a connecting block, a sealing plate and two side plates, the sealing plate and the two side plates protruding on one side of the support plate, the connecting block protruding on the other side of the support plate, the welding feet being installed on the connecting block and the two side plates, and the charging spring sheet being welded on the support plate.

6. The charging structure of claim 5, wherein, The side of the support plate far from the charging spring sheet is provided with a sunken platform for preventing the welding points of the charging spring sheet welded on the support plate from being too high.

7. The charging structure of claim 1, wherein, The charging spring sheet comprises a base, a first sheet body, a second sheet body, a third sheet body and a limiting rod, the base is provided with a limiting slot, the first sheet body is bent and extended from the edge of the base to the side far away from the base, the second sheet body is bent and extended from the end of the first sheet body far away from the base to the side far away from the base, the third sheet body is bent and extended from the end of the second sheet body far away from the first sheet body to the side close to the base, the limiting rod is arranged at the end of the third sheet body far away from the second sheet body, the limiting rod is slidingly installed in the limiting slot, the base is installed on the support, and the PIN pin assembly is abutted at the joint of the second sheet body and the third sheet body.

8. The charging structure of claim 7, wherein, The base comprises two folding plates and a bottom plate installed on the support, the first sheet body and the two folding plates are convexly arranged on the bottom plate, the cross section of the folding plate is "L" shape, the folding plate and the bottom plate enclose a concave cavity, and the two concave cavities constitute the limiting slot.

9. The charging structure of claim 1, wherein, The charging structure further comprises at least one magnetic attraction member for attracting the external charger, and the magnetic attraction member is installed in the accommodating space.

10. A smart wearable device, characterized by, The charging structure comprises the charging structure according to any one of claims 1-9.

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