KR200469740Y1 - Shopping cart of self-charging cellular phone - Google Patents

Abstract

The present invention relates to a mobile phone self-charging shopping cart, the technical problem to be solved is to purchase a mobile phone when the buyer wants to charge the mobile phone coupled to the battery pack provided in the shopping cart through the charging cable and then move the shopping cart In addition, it is possible to charge the mobile phone through a battery pack charged with electricity generated from the wheel of the shopping cart.
One embodiment of the present invention for this purpose; A handle having an engaging member extending from one side of the main frame and fixed to the mobile phone; A basket installed on the other side of the main frame; An auxiliary frame provided under the basket and installed on the other side of the main frame; A caster installed below the auxiliary frame; And a pack case installed in the auxiliary frame and having a pack case for accommodating a battery pack electrically connected to the mobile phone and the caster, wherein the handle is a handle frame having the engaging member coupled to an outer surface thereof; And a coupling tool formed on the handle frame to be spaced apart from the locking member to be mechanically and electrically coupled to the coupling piece of another cart, and the locking member has a lower surface of the body coupled to the handle frame. The upper surface of the body has a seating groove in which the mobile phone is seated, a fixing hole for fixing the charging cable connecting the mobile phone and the battery pack, the caster has a "∩" shape rotatably in the lower portion of the auxiliary frame Bracket that is installed, including the wheel rotatably coupled to the bracket, the middle of the wheel The rotor is fitted with a rotor composed of a ring-shaped permanent magnet formed by alternating N and S poles, and a stator with a coil wound around the core is installed in an area corresponding to the rotor in the bracket. The present invention discloses a mobile phone self-charging shopping cart that can be charged and supplied to the battery pack through a power line formed in the edge of the auxiliary frame and the permanent magnet of the rotor and the coil of the stator. .

Description

SHOPPING CART OF SELF-CHARGING CELLULAR PHONE}

The present invention relates to a mobile phone self-charging shopping cart, and more specifically, when a shopping buyer wants to charge a mobile phone battery, the mobile phone is coupled to a mobile phone charging terminal provided in the shopping cart, and then the shopping cart is moved. The present invention relates to a mobile phone self-charging shopping cart that can easily charge a mobile phone with electricity generated.

In general, a cart, a push cart or a shopping cart refers to a transportation device that is widely used for transporting cargo or purchasing various items in a large discount store, department store, supermarket, workshop or duty free store.

In particular, the shopping cart is generally provided with a handle on the upper part of the frame constituting the body, a mobile caster is mounted on the lower part of the frame, and a basket for storing goods in the center of the frame Has a structure to be installed.

A buyer who purchases an item using the shopping cart may often cause the battery of the mobile phone to be exhausted during shopping due to a long shopping period or an uncharged battery. In this case, the buyer may carry a separate charged mobile phone battery or move to a place where the charger main body is located in order to charge the mobile phone. In addition, since most of the conventional charger main body is fixed to the main power source, there is a problem that its use is very inconvenient when rapid charging is required.

Patent Publication No. 10-2005-0009097 "Smart Cart" Patent Publication No. 10-2011-0100431 "Kart automatic charging system and automatic charging cart"

According to the present invention, when a shopping buyer wants to charge the mobile phone, the mobile phone is coupled to the battery pack provided in the shopping cart through a charging cable, and then the shopping cart is moved, and the battery pack charged with electricity generated from the wheel of the shopping cart is moved. Its purpose is to provide a mobile phone self-charging shopping cart that can charge the mobile phone through.

According to an embodiment of the present invention for achieving the above object, the mobile phone self-charging shopping cart according to the present invention, the main frame; A handle having an engaging member extending from one side of the main frame and fixed to the mobile phone; A basket installed on the other side of the main frame; An auxiliary frame provided under the basket and installed on the other side of the main frame; A caster installed below the auxiliary frame; And a pack case installed in the auxiliary frame and having a pack case for accommodating a battery pack electrically connected to the mobile phone and the caster, wherein the handle is a handle frame having the engaging member coupled to an outer surface thereof; And a coupling tool formed on the handle frame to be spaced apart from the locking member to be mechanically and electrically coupled to the coupling piece of another cart, and the locking member has a lower surface of the body coupled to the handle frame. The upper surface of the body has a seating groove in which the mobile phone is seated, a fixing hole for fixing the charging cable connecting the mobile phone and the battery pack, the caster has a "∩" shape rotatably in the lower portion of the auxiliary frame Bracket that is installed, including the wheel rotatably coupled to the bracket, the middle of the wheel The rotor is fitted with a rotor composed of a ring-shaped permanent magnet formed by alternating N and S poles, and a stator with a coil wound around the core is installed in an area corresponding to the rotor in the bracket. As a result, an induced current generated between the permanent magnet of the rotor and the coil of the stator may be supplied to the battery pack and charged through a power line formed at the edge of the auxiliary frame.

The battery pack regulator is electrically connected to the coil of the stator to convert the induced current into a direct current; A charge / discharge control unit controlling charge / discharge of the battery cell by using the direct current converted by the regulator; And a switching unit for selectively supplying the current charged in the battery cell to the mobile phone. And it may include a terminal unit for outputting the current selectively supplied from the switching unit to the mobile phone through a charging cable.

Inside the pack case, one side may be further provided with a control circuit unit electrically connected to the terminal unit of the battery pack, and the other side is electrically connected to the coupler through a first electric line.

The control circuit unit may include: a first sensing unit sensing whether the coupler is mechanically and electrically coupled to a coupling piece of another cart; A second detector configured to detect whether the terminal of the mobile phone and the battery pack are electrically connected; A warning sound generator for outputting a warning sound when the terminal is connected to the mobile phone and the battery pack when the coupler is mechanically and electrically coupled to a coupling piece of another cart; And it may include a control unit for controlling the operation of each component.

The coupler is mechanically coupled to the other cart and at the same time a second electrical line for electrical coupling is formed, the end of the coupling is provided with a coupling piece that is connected to the second electrical line and the coupling piece of the other cart is fastened mechanically And it may include a coupling groove that can be electrically connected.

The charging cable has a first terminal connected to a terminal of the battery pack at one end thereof, and at least one second terminal connected to the mobile phone is formed at the other end thereof, and the first terminal and the second terminal have at least one Can be connected to the charging line.

The locking member has a lower surface coupled to the handle frame, and an upper surface thereof includes a fixing groove in which the mobile phone is seated and a fixing hole in which the charging cable is fixed. The first fixing member and the second fixing member having a is formed, the first fixing member and the second fixing member may be formed such that the upper surface or the lower surface is flat, the lower surface or the upper surface is inclined.

Mobile phone self-charging shopping cart according to the present invention is installed on the wheel side of the shopping cart having a mobile phone charging terminal unit, and equipped with a battery pack electrically connected to the power generator, even if the buyer moves the shopping cart The electricity is generated, and at this time, the generated electricity may be charged in the battery pack, and then the charged electricity may be charged in the purchaser's mobile phone, thereby improving efficiency and convenience for the purchaser.

1 is a perspective view showing a mobile phone self-charging shopping cart according to the present invention.
Figure 2 is an exploded perspective view showing a mobile phone self-charging shopping cart according to the present invention.
3 is a perspective view illustrating the locking member of FIG. 2.
4 is an exploded perspective view illustrating the caster of FIG. 2.
5 is a block diagram briefly illustrating a configuration of a pack case of FIG. 2.
6 is a perspective view illustrating the charging cable of FIG. 2.
7 is a side view showing a state in which the mobile phone self-charging shopping cart of FIG.
FIG. 8 is a perspective view illustrating the locking device of the handle portion of FIG. 7. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The applicant will now describe in detail the construction of the embodiments with reference to the accompanying drawings.

Detailed descriptions of known functions and configurations that may be unnecessarily obscured by the gist of the present invention will be omitted.

On the other hand, the mobile phone in the present invention is a generic term for a mobile communication terminal including a smart phone, as well as a digital communication device that can perform communication with a rechargeable battery, such as a terminal such as PDA, Web pad, as well as a smart phone Any will be applicable to the mobile phone according to the present invention.

1 is a perspective view showing a mobile phone self-charging shopping cart according to the present invention, Figure 2 is an exploded perspective view showing a mobile phone self-charging shopping cart according to the present invention, Figure 3 is a perspective view showing the locking member of FIG. 4 is an exploded perspective view illustrating the caster of FIG. 2, FIG. 5 is a block diagram briefly illustrating a configuration of a pack case of FIG. 2, FIG. 6 is a perspective view illustrating a charging cable of FIG. 2, and FIG. 7 is of FIG. 2. 8 is a side view illustrating a state in which a mobile phone self-charging shopping cart is coupled to a plurality, and FIG. 8 is a perspective view illustrating a locking device of the handle portion of FIG. 7.

1 and 2, the mobile phone self-charging shopping cart 1 according to the present invention includes a main frame 10, a handle 20, a basket 30, an auxiliary frame 40, a caster 50, and The pack case 60 is provided.

The main frame 10 is a frame forming a skeleton, supports the basket 30, and has a structure in which the caster 50 is mounted and movable through the auxiliary frame 40. The main frame 10 is composed of a plurality of rods, the rods may be made of stainless steel or reinforced plastics, but the present invention is not limited to the material of the rod.

The handle 20 extends on one side of the main frame 10 to perform forward and direction adjustment of the cart 1.

The handle 20 includes a handle frame 21, a locking member 22, and a coupler 24.

The handle frame 21 is formed on the one side of the main frame 10 in a structure that can be wrapped by the buyer by the hand to enable the forward and direction adjustment. The handle frame 21 may be made of stainless steel or reinforced plastic, but the present invention is not limited to the material of the handle frame 21.

Referring to FIG. 3, the locking member 22 is formed on the handle frame 21 to fix the mobile phone 23. The lower surface of the body 222 is connected to the handle frame 21 through coupling means such as a clamp. Is coupled to the upper surface of the body 222 has a structure in which the mobile phone 23 can be seated. That is, the upper surface of the body 222 has a mounting groove 221 is fixed to the mobile phone 23 is fixed, the fixing hole 223 is fixed to the inner wall of the mounting groove 221, the charging cable 65 is formed. do. The fixing hole 223 may be formed to a predetermined depth from the upper side of the locking member 22 so that the charging cable 65 is detachable. Accordingly, the second terminal of the charging cable 65 fixed to the fixing hole 223 is coupled to the charging terminal of the mobile phone 23 fixed to the seating groove 221 so that the mobile phone 23 even when the shopping cart is moved. It can be secured and charged at the same time. Although not shown, the locking member 22 covers the fixing hole 223 or includes a cover member on one side of the body 222 that covers the fixing hole 223 and the seating groove 221, thereby providing a charging cable ( 65 and the mobile phone 23 may be protected.

The first fixing member 224a and the second fixing member 224b having a symmetrical structure are formed on the inner wall of the upper region of the fixing hole 223 to face each other. The first fixing member 224a and the second fixing member 224b are formed so that the upper surface or the lower surface is flat and the lower surface or the upper surface is inclined. That is, the first fixing member 224a and the second fixing member 224b are formed such that the cross-sectional shape in the vertical direction with respect to the longitudinal direction of the fixing hole 223 forms a right triangle or trapezoidal shape. The first fixing member 224a and the second fixing member 224b prevent the movement of the charging cable 65, specifically, the charging line 653 when they are inserted into or separated from the inside, and at the same time, a fixing force. The structure can be improved. The first fixing member 224a and the second fixing member 224b may be formed of any one selected from the group consisting of natural rubber, synthetic rubber, and soft plastic having elasticity.

As shown in FIGS. 7 and 8, the coupler 24 is formed on the handle frame 21 so as to be spaced apart from the engaging member 22 to be mechanically coupled to the engaging piece 24a of the other cart 1a. Electrically coupled. More specifically, the coupler 24 is formed with an electrical line (not shown) for mechanical coupling with the other cart (1a) at the same time, the coupling piece 24a connected to the electrical line at the end ) Is provided with a coupling ring 242 and the coupling piece 24a of the other cart 1a is fastened to form a coupling groove 243 that can be mechanically and electrically connected. The connecting ring 242 and the coupling piece 24a are electrically connected to the control circuit unit 62 to be described later. In addition, the connecting ring 242 and the coupling piece 24a are electrically connected to the defect grooves 243. The connection ring 242 may include an electric line (not shown) having + and − polarities. At the same time, the connection ring 242 may be made of a material having high mechanical rigidity, and may be used by additionally attaching an electric line having + and − polarities to an existing connection ring.

The coupling piece 24a is electrically and mechanically connected to the connecting ring 242. The coupling piece 24a of the shopping cart 1 is mechanically inserted into and coupled to the coupling groove 243 of the other cart 1a, and is electrically connected to detect the coupling between the carts by the control circuit unit 62. Do it. However, the coupler 24 receives only a relatively small current compared to the current required for charging supplied from the battery pack 61 to the mobile phone 23. To this end, the control circuit unit 62 may include a separate current divider (not shown).

The basket 30 is installed in the other side of the main frame 10 is formed in the form of a net-shaped box so as to load the goods for the buyer to shop. The basket 30 may be made of stainless steel or plastic.

The auxiliary frame 40 is a lower portion of the basket 30 and is installed on the other side of the main frame 10 to form a plate. The auxiliary frame 40 may serve to support the lower region of the main frame 10, and at the same time, separately load goods for shopping by the buyer. A power line 41 is formed at the edge of the auxiliary frame 40 to be electrically connected to the caster 50. Although not shown, the power line 41 may be formed to be electrically connected to the caster 50 inside the auxiliary frame 40. In addition, a battery pack 61 is formed on an upper surface of the auxiliary frame 40, and the battery pack 61 is electrically connected to the power line 41 to rotate the wheels 52 of the caster 50. It is charged with electricity generated by

Referring to FIG. 4, the caster 50 is installed under the auxiliary frame 40, and the shopping cart 1 is equipped with approximately four casters 50.

The caster 50 has a “51” shape and includes a bracket 51 rotatably installed at the lower portion of the auxiliary frame 40 and a wheel 52 rotatably coupled to the bracket 51. In addition, a rotor 53 composed of a ring-shaped permanent magnet 531 formed by alternating N-poles and S-poles is fitted in the center of the wheel 52, and the rotor 53 on the bracket 51. In the region corresponding to the stator 54, the coil 542 is wound around the core 541. At this time, when the wheel 52 is rotated, the coil 542 of the stator 54 according to the induction action generated between the permanent magnet 531 of the rotor 53 and the coil 542 of the stator 54. Induced current is generated. The induced current generated as described above is supplied to the battery pack 61 through the power line 41 formed at the edge portion of the auxiliary frame 40 to charge the battery cell 650.

Referring to FIG. 5, the pack case 60 is installed in the auxiliary frame 40 to accommodate a battery pack 61 and a control circuit part 62 electrically connected to the mobile phone 23 and the caster 50.

The battery pack 61 includes at least one battery cell 650, a regulator 610 electrically connected to the coil 542 of the stator 54 to convert an induced current into a direct current, and a regulator 610. Charge / discharge control unit 620 for controlling the charging and discharging of the battery cell 650 using a direct current converted through the) and the switching unit for selectively supplying the current charged in the battery cell 650 to the mobile phone 23 630 and a terminal unit 640 for outputting a current selectively supplied from the switching unit 630 to the mobile phone 23 through the charging cable 65. Here, the configuration of the regulator 610, the charge / discharge control unit 620, the switching unit 630 and the terminal unit 640 may be implemented on a printed circuit board integrating the electrical elements to implement each function.

Here, referring to FIG. 6, the charging cable 65 is formed at one end and connected to the terminal portion 640 of the battery pack 61, and is formed at the other end and connected to the mobile phone 23. At least one second terminal 652, and at least one charging line 653 connecting between the first terminal 651 and the second terminal 652. The first terminal 651 is a terminal formed to be coupled to the terminal portion 640 of the battery pack 61, the second terminal 652 is formed to be coupled to correspond to the type of charging terminal of the various mobile phones (23) As terminals, the number of pins is formed differently, respectively. For example, the second terminal 652 may have a number of other pins, such as 8 pins and 30 pins, and the number of these pins is different for each manufacturer, and thus may be designed according to the type of mobile phone.

The control circuit unit 62 is provided inside the case 60, one side of which is electrically connected to the terminal unit 640 of the battery pack 61, and the other side of which is electrically connected to the coupler 24.

The control circuit unit 62 includes a first sensing unit 621 that detects whether the coupler 24 is mechanically and electrically coupled to the engaging piece 24a of the other cart 1a, and the mobile phone 23. And a second sensing unit 622 for detecting whether the terminal unit 640 of the battery pack 61 is electrically connected, and the coupler 24 is mechanically connected to the engaging piece 24a of the other cart 1a. When the mobile phone 23 and the terminal unit 640 of the battery pack 61 are electrically connected when they are electrically coupled, a warning sound generator 623 which outputs a warning sound to the outside, and each component, that is, the first detection unit ( 621, a control unit 624 for controlling the operation of the second detection unit 622 and the warning sound generating unit 623. In the present invention, when the shopper fixes the shopping cart 1 to the other shopping cart 1a after the end of the shopping through the configuration of the control circuit part 62, the mobile phone 23 and the charging cable 65 which are being charged are not separated. It can be seen that, through this it is possible to prevent the situation that the mobile phone 23 is lost. The first detector 621, the second detector 622, the alarm sound generator 623, and the controller 624 may be configured on a printed circuit board in which electrical elements implementing each function are integrated into one. Can be implemented.

Meanwhile, referring to FIG. 7, when the shopping cart 1 having the above structure is not used, the shopping cart 1 and the other shopping carts 1a are connected to each other on the building wall w, stored and stored. Locks are provided to facilitate management as well as to monetize the use of the cart.

Referring to FIG. 8, these locks are provided in the coupling hole of the cart 1a adjacent to the coupling groove 243 of the coupling hole 24 mounted in the handle frame 21 of the shopping cart 1 which is not used. Insert and fix the coupling piece (24a) provided in the connecting ring (242). That is, when the coupling piece 24a enters the coupling groove 243, the coupling piece 24a is caught and fixed in the coupling groove 243. In this state, the shopping cart 1 is connected to another neighboring shopping cart 1a, and in order to use the shopping cart, the coin is pushed into the release plate 25 mounted on the push rod and the release plate 25 is pushed. The engaging piece 24a of the other cart 1a is released from the engaging groove 243 of the coupler 24 so that the shopping cart 1 can be separated from the other cart 1a. An insertion hole 26 into which an electric line is inserted is formed at a lower side of the coupler 24.

In addition, the locking device enters the coupling piece 24a into the coupling groove 243 to couple the shopping carts to each other, when the coupling piece 24a is fixed in the coupling groove 243, the control unit 624 When the first detection unit 621 detects the electrical connection between the coupler 24 and the coupling piece 24a by the command of the), and the electrical connection between the coupling sphere 24 and the coupling piece 24a is detected, The sensing unit 622 detects an electrical connection between the mobile phone 23 and the terminal unit 640 of the battery pack 61. At this time, the control unit 624, when the electrical connection between the mobile terminal 23 and the terminal unit 640 of the battery pack 61 is detected by the second detection unit 622 to the warning sound to the outside through the warning sound generating unit 623. You can output it. Therefore, in the present invention, when the buyer fixes the shopping cart 1 to the other shopping cart 1a through these configurations, the mobile phone 23 fixed to the engaging member 22 and charged is connected with the charging cable 65. By detecting a case in which it is not released and outputting a warning sound to the outside, it is possible to prevent a case in which the mobile phone 23 is lost by a buyer's mistake.

On the other hand, the surface of the engaging member 22 may be coated with a functional material layer, the functional material layer is made of 30% by weight of benzoin, 30% by weight of Cyprus, 20% by weight of Santorina, 20% by weight of sandalwood It may be a mixture of 95 to 97% by weight of the fragrance to 3 to 5% by weight of the functional oil.

The reasons for the addition of functional oil components are as follows.

The reason for the addition of benzoin (Benzoin) is that when it is supplied to the respiratory tract of the person in the adjacent position, there is a good effect, such as cough, throat, especially because the psychological stabilizing effect is excellent. In addition, the reason for the addition of Cypress may include di-pinene and di-camphene as chemical components in the case of Cypress. This is because it refreshes the air and at the same time provides an excellent action for chasing insects. And, the reason for the addition of Santorina (Santolina) is because the chemical composition, such as bonol (borneol), cineol (cineole), campene (camphene) and the like because the insect repellent effect is excellent. In addition, the sandalwood (Sandalwood) is a main chemical component such as santolol (pine), pinene (santalic acid), and the like (santalic acid), because it has an excellent effect on the treatment of respiratory diseases.

The functional oil is preferably 3 to 5% by weight with respect to 95 to 97% by weight of fragrance, the reason is that if the mixing ratio of the functional oil is less than 3% by weight, the effect is negligible, the mixing ratio of the functional oil If the amount exceeds 5% by weight, the function thereof is not greatly improved while the manufacturing cost is greatly increased.

As described above, when the functional material is coated on the surface of the catching member 22, as a result of fatigue recovery and health promotion to the shopper who is shopping, the effects of cough, throat respiratory disease treatment, psychological stabilization effect, etc. Can be provided.

Mobile phone self-charging shopping cart according to the present invention described above is not limited to the above-described embodiment and the accompanying drawings, it is possible that various substitutions, modifications and changes within the scope without departing from the spirit of the present invention It will be apparent to those skilled in the art to which the present invention pertains.

1: cell phone self charging shopping cart 10: main frame
20: handle 21: handle frame
22: locking member 23: mobile phone
24: coupling sphere 30: basket
40: auxiliary frame 41: power line
50: caster 51: bracket
52: wheel 53: rotor
54: Stator 60: Pack Case
61: battery pack 62: control circuit

Claims (9)

Main frame 10;
A handle 20 extending from one side of the main frame 10 and provided with a locking member 22 to which the mobile phone 23 is fixed;
A basket 30 installed on the other side of the main frame 20;
An auxiliary frame (40) installed below the basket (30) of the main frame (20);
A caster 50 installed below the auxiliary frame 40; And
A pack case 60 installed in the auxiliary frame 40 to accommodate a battery pack 61 electrically connected to the mobile phone 23 and the caster 50;
The caster 50 has a “∩” shape and includes a bracket 51 rotatably installed at the lower portion of the auxiliary frame 40, and a wheel 52 rotatably coupled to the bracket 51. ,
In the center of the wheel 52, a rotor 53 composed of a ring-shaped permanent magnet 531 formed by alternating N and S poles is fitted, and the rotor 53 in the bracket 51 is fitted. In the region corresponding to the stator 54, the coil 542 is wound around the core 541, and the permanent magnet 531 and the stator 54 of the rotor 53 are rotated according to the rotation of the wheel 52. Induced current generated between the coil 542 of the supplied to the battery pack 61 through the power line 41 formed on the edge of the auxiliary frame 40 is charged,
The handle 20 is formed so as to be spaced apart from the locking member 22 on the handle frame 21 and the locking member 22 coupled to the outer surface of the other cart (1a) And a coupler 24 that can be mechanically and electrically coupled to the coupling piece 24a,
The battery pack 61 is:
A regulator 610 electrically connected to the coil 542 of the stator 54 to convert the induced current into a direct current;
A charge / discharge control unit 620 for controlling charge / discharge of the battery cell 650 using the direct current converted by the regulator 610;
A switching unit 630 for selectively supplying a current charged in the battery cell 650 to the mobile phone 23; And
And a terminal unit 640 for outputting the current selectively supplied from the switching unit 630 to the mobile phone 23 through the charging cable 65.
Inside the pack case 60, one side is electrically connected to the terminal unit 640 of the battery pack 61, and the other side is a control circuit unit electrically connected to the coupler 24 through a first electric line. 62 is further provided,
The locking member 22 has a lower surface of the body 222 is coupled to the handle frame 21,
The fixing hole 223 is fixed to the upper surface of the body 222 is a mounting groove 221 on which the mobile phone 23 is seated, and a charging cable 65 connecting the mobile phone 23 to the battery pack 61. Mobile phone self-charging shopping cart characterized in that it comprises a.
delete delete The method of claim 1,
The control circuit unit 62 is:
A first detector 621 that detects whether the coupler 24 is mechanically and electrically coupled to the coupling piece 24a of the other cart 1a;
A second detector 622 for detecting whether the mobile phone 23 and the terminal unit 640 of the battery pack 61 are electrically connected to each other;
When the coupler 24 is mechanically and electrically coupled to the engaging piece 24a of the other cart 1a, the mobile phone 23 and the terminal portion 640 of the battery pack 61 are connected to each other. Alert sound generating unit 623 for outputting the outside; And
Control unit 624 for controlling the operation of each component; mobile phone self-charging shopping cart comprising a.
The method of claim 1,
The coupling hole 24 is a mechanical connection with the other cart (1a) and at the same time a second electrical line for electrical coupling is formed, the end is provided with a coupling piece (24a) connected to the second electrical line Mobile phone self-charging shopping cart, characterized in that it comprises a coupling groove (243) that can be coupled mechanically and electrically connected to the coupling piece (24a) of the ring (242) and the other cart (1a).
The method of claim 1,
The charging cable 65 has a first terminal 651 connected to the terminal 640 of the battery pack 61 at one end thereof, and at least one second terminal connected to the mobile phone 23 at the other end thereof. 652 is formed, and the first terminal 651 and the second terminal 652 is connected to at least one charging line 653, the mobile phone self-charging shopping cart.
The method of claim 1,
The first fixing member 224a and the second fixing member 224b having a symmetrical structure are formed on the inner wall of the upper region of the fixing hole 223 to face each other.
The first fixing member (224a) and the second fixing member (224b) is a mobile phone self-charging shopping cart, characterized in that the upper surface or the lower surface is formed flat, the lower surface or the upper surface is inclined.
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