CN215904559U

CN215904559U - Shallow with wireless power supply function

Info

Publication number: CN215904559U
Application number: CN202121713183.3U
Authority: CN
Inventors: 解鹏飞; 廉金龙
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-02-25
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a trolley with a wireless power supply function, which comprises a trolley frame, a wheel assembly, an LED lamp and a wireless power supply device for supplying power to the LED lamp, wherein the wireless power supply device comprises a first module and a second module, the first module comprises a first coil and a power supply connected with the first coil, the power supply is used for supplying power to the first coil, and the first coil can form a magnetic field in a power-on state; the second module comprises a second coil, the second coil is arranged in an action area of the magnetic field, and the second coil and the LED lamp form a loop; in response to the first coil being in the power-on state, induced electromotive force is generated at two ends of the second coil to form induced current in a loop where the second coil and the LED lamp are located, so that the LED lamp emits light. According to the technical scheme provided by the utility model, the wireless power supply device is used for supplying power, so that the circuit problem caused by long-time abrasion of the lead can be avoided, the phenomenon that the wire harness is not threaded is reduced, and power supply at a certain distance or power supply across an obstacle is realized.

Description

Shallow with wireless power supply function

Technical Field

The utility model relates to the field of children products, in particular to a trolley with a wireless power supply function.

Background

Light decoration is needed on children toys such as children's carts/children's electric cars, and the stranded wire connection and the contact connection are adopted among the prior art, and through long-time relative motion, rainwater and the like, the wire can be abraded to enable a circuit to be short-circuited, so that the light is finally disabled, and the effect of long-term maintenance cannot be achieved. In addition, most methods for contact or wiring harness connection are performed through the shaft center, so that assembly time and later failure rate are greatly increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of the prior art, the utility model provides a trolley with a wireless power supply function. The specific technical scheme of the utility model is as follows:

the utility model provides a cart with a wireless power supply function, which comprises a cart frame and wheel assemblies, and further comprises an LED lamp and a wireless power supply device for supplying power to the LED lamp, wherein the wireless power supply device comprises:

the first module comprises a first coil and a power supply connected with the first coil, wherein the power supply is used for supplying power to the first coil, and the first coil can form a magnetic field in a power-on state;

a second module comprising a second coil disposed within the region of action of the magnetic field, the second coil forming a loop with the LED lamp;

in response to the first coil being in the energized state, induced electromotive force is generated at two ends of the second coil to form induced current in a loop where the second coil and the LED lamp are located, so that the LED lamp emits light.

Further, the first module further comprises a first switch, the first coil is connected with the power supply through the first switch, and the first switch is used for switching the on-off state between the power supply and the first coil.

Further, the first module further comprises a first voltage stabilizing unit for providing the power supply to the driving voltage clamp of the first coil within a preset safety range.

Further preferably, the first voltage stabilizing unit is a voltage regulator tube or a voltage stabilizing chip.

Further, the first module further comprises a first protection unit, wherein the first protection unit comprises a first resistor and a first capacitor, and the first protection unit plays a role of a protection circuit when the first module works.

Further, the second module further comprises a second switch, the second coil is connected with the LED lamp through the second switch, and the second switch is used for switching the on-off state between the LED lamp and the second coil.

Further, the second module further comprises a second voltage stabilizing unit for clamping the induced current within a preset safety range.

Further preferably, the second voltage stabilizing unit is a voltage regulator tube or a voltage stabilizing chip.

Further, the second module further comprises a second protection unit which comprises a second resistor and a second capacitor, wherein the second resistor is connected with the LED lamp in series, and the second capacitor is connected with the LED lamp in parallel.

Further, the second module further comprises a control unit for controlling the lighting color and/or the lighting frequency of the LED lamp.

Further, both ends of the LED lamp are directly connected with the second coil, or both ends of the LED lamp are connected with the second coil through a wire.

Preferably, the first and second coils include a magnet and a copper wire.

The technical scheme provided by the utility model has the following beneficial effects:

a. the wireless power supply device supplies power, so that the circuit problem caused by long-time abrasion of the conducting wire can be avoided;

b. the wire harness is reduced from being threaded, and power supply at a certain distance or power supply across obstacles is realized;

c. simple structure does benefit to the maintenance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a first schematic view of a cart with a wireless power supply function according to an embodiment of the present invention;

fig. 2 is a second schematic view of the cart with wireless power supply function provided by the embodiment of the utility model;

fig. 3 is a partial schematic view of a cart with wireless power supply provided by an embodiment of the present invention;

FIG. 4 is a partial exploded view of a cart with wireless power capability provided by an embodiment of the present invention;

fig. 5 is a partial circuit diagram of a cart with a wireless power supply function according to an embodiment of the present invention.

Wherein the reference numerals include: 1-vehicle frame, 2-wheel assembly, 31-first coil, 32-second coil and 4-LED lamp.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.

Example one

The embodiment provides a cart with a wireless power supply function, as shown in fig. 1-3, comprising a frame 1, a wheel assembly 2, an LED lamp 4 and a wireless power supply device for supplying power to the LED lamp 4.

The wireless power supply device comprises a first module, wherein the first module comprises a first coil 31, a power supply and a first switch, the power supply is connected with the first coil 31, the first coil 31 is connected with the power supply through the first switch, and the first switch is used for switching the on-off state between the power supply and the first coil 31; the power supply is used to supply power to the first coil 31. The first coil 31 is capable of forming a magnetic field in the energized state, and in particular, in response to the first switch being turned on, the first coil 31 is in the energized state.

The wireless power supply device further comprises a second module, wherein the second module comprises a second coil 32 and a second switch, the second coil 32 is connected with the LED lamp 4 through the second switch, and the second switch is used for switching the on-off state between the LED lamp 4 and the second coil 32. The second coil 32 is disposed in the action region of the magnetic field, and the second coil 32, the LED lamp 4, and the second switch form a loop. In response to the first coil 31 being in the energized state, an induced electromotive force is generated across the second coil 32 to form an induced current in a loop in which the second coil 32 and the LED lamp 4 are located, so that the LED lamp 4 emits light, specifically, the second switch is closed, and the loop is a closed loop.

As shown in fig. 4, both ends of the LED lamp 4 are directly connected to the second coil 32. Specifically, in this embodiment, when the first switch is turned off, the power supply supplies power to the first coil 31, that is, the first coil 31 is in the energized state, and in response to the first coil 31 being in the energized state, an induced electromotive force is generated at two ends of the second coil 32, and the second switch is turned on, so that an induced current is formed in a loop where the second coil 32 and the LED lamp 4 are located, so that the LED lamp 4 emits light, and a certain decorative effect is achieved.

In the technical scheme provided by the utility model, a wireless power supply technology (an electromagnetic induction type, a magnetic field resonance type and a radio wave type) is utilized to solve the problems that the power supply cannot be conveniently realized in a wire way due to distance or mutual movement, the phenomenon that a wire harness is not threaded can be reduced, and the power supply at a certain distance or the power supply across an obstacle can be realized. Wherein the certain distance is determined by the size of the first coil 31 and the generated power.

In this embodiment, in addition to the above components, as shown in fig. 2, the first module further includes a first voltage stabilizing unit for clamping the driving voltage supplied from the power supply to the first coil 31 within a preset safety range. It should be noted that the first voltage stabilizing unit is a voltage regulator tube or a voltage stabilizing chip, and the protection scope of the present invention is not limited thereto.

In this embodiment, in addition to the above components, as shown in fig. 2, the first module further includes a first protection unit, which includes a first resistor and a first capacitor, and the first protection unit plays a role of protecting a circuit when the first module operates.

In this embodiment, in addition to the above components, the second module further includes a second voltage stabilizing unit for clamping the induced current within a preset safety range. It should be noted that the second voltage stabilizing unit is a voltage regulator tube or a voltage stabilizing chip, which is not intended to limit the scope of the present invention.

In this embodiment, in addition to the above components, as shown in fig. 5, the second module further includes a second protection unit including a second resistor and a second capacitor, the second resistor is connected in series with the LED lamp 4, and the second capacitor is connected in parallel with the LED lamp 4.

In this embodiment, in addition to the above components, as shown in fig. 5, the second module further includes a control unit for controlling the lighting color and/or the lighting frequency of the LED lamp 4.

Example two

Unlike the above embodiments, in the present embodiment, not shown, both ends of the LED lamp 4 are connected to the second coil 32 through wires, so that the LED lamp 4 can be disposed outside the action region of the magnetic field, for example, an electromagnetic emitting end, i.e., the wireless power supply device, is mounted on the joint of the wheel assembly 2, and a receiving end is mounted on the moving part, and the receiving end is mounted with the LED lamp 4 or other electrical components or assemblies requiring electricity.

The sequence of the above embodiments of the present invention is only for description, and does not represent the advantages and disadvantages of the embodiments.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A cart with wireless power supply function, comprising a frame (1) and a wheel assembly (2), characterized in that the cart further comprises an LED lamp (4) and a wireless power supply device for supplying power to the LED lamp (4), the wireless power supply device comprising:

a first module comprising a first coil (31) and a power supply connected to the first coil (31), the power supply being configured to power the first coil (31), the first coil (31) being capable of forming a magnetic field in an energized state;

a second module comprising a second coil (32), the second coil (32) being arranged within the region of action of the magnetic field, the second coil (32) forming a loop with the LED lamp (4);

in response to the first coil (31) being in the energized state, induced electromotive force is generated at two ends of the second coil (32) to form induced current in a loop where the second coil (32) and the LED lamp (4) are located, so that the LED lamp (4) emits light.

2. The wirelessly powered cart of claim 1, wherein said first module further comprises a first switch, said first coil (31) being connected to said power source through said first switch, said first switch being configured to switch an on/off state between said power source and said first coil (31).

3. The wirelessly powered cart of claim 1, wherein said first module further comprises a first voltage regulation unit for clamping a driving voltage of said power supply to said first coil (31) within a preset safety range.

4. The cart with wireless power supply function according to claim 3, wherein the first voltage stabilizing unit is a voltage regulator tube or a voltage stabilizing chip.

5. The wirelessly powered cart of claim 1, wherein the first module further comprises a first protection unit comprising a first resistor and a first capacitor, the first protection unit functioning as a protection circuit when the first module is in operation.

6. The wirelessly powered cart according to claim 1, wherein said second module further comprises a second switch, said second coil (32) being connected to said LED lamp (4) through said second switch, said second switch being configured to switch an on/off state between said LED lamp (4) and said second coil (32).

7. The wirelessly powered cart of claim 1, wherein the second module further comprises a second voltage regulation unit for clamping the induced current within a preset safety range;

the second voltage stabilizing unit is a voltage stabilizing tube or a voltage stabilizing chip.

8. The wirelessly powered cart according to claim 1, wherein said second module further comprises a second protection unit comprising a second resistor and a second capacitor, said second resistor being connected in series with said LED lamp (4), said second capacitor being connected in parallel with said LED lamp (4).

9. Wirelessly powered cart according to claim 1, wherein said second module further comprises a control unit for controlling the lighting color and/or the lighting frequency of said LED lamp (4).

10. The cart with a wireless power supply function according to claim 1, wherein both ends of the LED lamp (4) are directly connected to the second coil (32), or both ends of the LED lamp (4) are connected to the second coil (32) by a wire.