CN106100146A - Wireless power transmission coupled zone protection device - Google Patents

Abstract

The invention belongs to wireless power field; particularly relate to wireless power transmission coupled zone protection device; protection device include control circuit, with the jacking system that control circuit is connected, be positioned at the sensing contact module above jacking system; described jacking system includes lifting circuit, actuating device, connection sensing contact module and the elevating mechanism of actuating device, and described actuating device is connected with lifting circuit.The protection device of the present invention reaches fully automated, it is not necessary to manual operation, saves manpower, does not affect wireless power transmission efficiency simultaneously.

Description

Wireless Power Transfer Coupling Zone Protector

technical field

The invention belongs to the field of wireless power supply, in particular to a protection device for a wireless power transmission coupling area.

Background technique

Wireless charging, also known as inductive charging, non-contact inductive charging, uses near-field induction, that is, inductive coupling, to transmit energy from a power supply device (charger) to a device that uses electricity, and the device uses the received energy to The battery is charged and simultaneously used for its own operation. Since energy is transmitted between the charger and the power-consuming device through inductive coupling, there is no need for wires to connect the two, so both the charger and the power-consuming device can have no exposed conductive contacts. When performing wireless power transmission, it is mainly based on the uniform high-frequency alternating magnetic field generated between the transmitting coil and the receiving coil. The transmission device brings new changes to the charging of electric equipment. For example, wireless power supply technology is applied to low-power electrical appliances, such as portable devices such as mobile phones and Ipads, or applied to high-power electrical appliances, such as automobiles. However, when the wireless energy transmission device is working, an energy coupling area will be generated between the transmitting end and the receiving end, and this coupling area may cause certain damage to the human body or other things.

Contents of the invention

In order to solve the problem of living beings or other objects entering the coupling area by mistake in the prior art, the present invention provides a protection device for the coupling area of wireless power transmission, which can protect the coupling area from entering the living beings or other objects by mistake during the wireless power transmission process.

In order to solve the above technical problems, the protection device of the wireless power transmission coupling area provided by the present invention is special in that: the protection device includes a control circuit, a lifting system connected to the control circuit, and a contact sensing module 2 located above the lifting system , the lifting system includes a lifting circuit, a transmission device, a lifting mechanism connecting the contact sensing module 2 and the transmission device, and the transmission device is connected to the lifting circuit.

Further, the transmission device is a linear motor 3, the lifting mechanism is an X-shaped telescopic bracket 4, and the protection device also includes a base 5 fixed on the ground, and one of the endpoints below the X-shaped telescopic bracket 4 is connected to the The end of the linear motor 3 is axially connected, and the other lower end is axially connected to the base 5 .

Further, the outer side of the protection device is provided with a stretchable protective layer 6 surrounding the contact sensing module 2 and the base 5, the two sides of the upper end are respectively connected with the two sides of the contact sensing module 2, and the two sides of the lower end are connected with the base respectively. 5 connected on both sides.

Further, the lifting circuit, the control circuit, and the linear motor 3 are fixed above the base 5, and the linear motor 3 is connected to the lifting circuit.

Further, the X-shaped telescopic bracket 4 is made of carbon fiber.

Further, the protection device is located on the periphery of the transmitting coil of the wireless charging pile, and a foreign object detection device is arranged above the transmitting coil of the wireless charging pile.

Further, the control circuit includes a main control module, a communication module for information interaction with the main control module and the wireless charging pile, wherein the output terminal of the main control module is connected to the input terminal of the lifting circuit, and the contact sensing module 2 and the foreign object The detection devices are respectively connected with the input ends of the communication modules.

Further, the control circuit also includes an alarm module connected to the output terminal of the main control module.

Further, an integral circuit storage box 1 for storing the control circuit is arranged above the base 5 .

Compared with the prior art, the present invention is beneficial in that it isolates and protects the exposed wireless power transmission coupling area to prevent people or animals from entering and causing harm; at the same time, neither the lifting mechanism nor the retractable protective outer layer is made of metal , does not affect wireless power transmission. The device is fully automatic without manual operation and saves manpower. The present invention does not affect the wireless power transmission efficiency.

Description of drawings

Fig. 1 is the principle schematic diagram of protection device of the present invention;

Fig. 2 is a schematic diagram of the expansion of the lifting mechanism in the protection device of the present invention;

Fig. 3 is a schematic diagram showing the retraction of the lifting mechanism in the protection device of the present invention.

Marking instructions: 1. Overall circuit storage box, 2. Contact sensor module, 3. Linear motor, 4. X-type retractable bracket, 4-1, End point A, 4-2, End point B, 4-3, End point C , 4-4, endpoint D, 4-5, intersection point, 5, base, 6, retractable protective layer, 7, chute.

detailed description

The specific implementation manner of the present invention will be described in detail with reference to accompanying drawings 1-3.

Example 1:

The protection device in this embodiment is located on the periphery of the transmitting coil of the wireless charging pile, encloses the transmitting coil of the wireless charging pile inside the protection device, and is provided with a foreign object detection device above the transmitting coil of the wireless charging pile. The bottom of the protection device is a base 5 fixed on the ground, and the top is provided with a lifting bracket. The protection device includes a control circuit, a lifting system, and a contact sensing module 2 above the lifting system, wherein the contact sensing module 2 is located on the upper side of the lifting bracket.

The control circuit includes a main control module, a communication module for information interaction with the main control module and the wireless charging pile, and a lifting circuit is provided in the lifting system, the output end of the main control module is connected to the input end of the lifting circuit, and the contact sensing module 2, The foreign object detection devices are respectively connected with the input ends of the communication modules. In this embodiment, the control circuit is stored in the integrated circuit storage box 1 , and the integrated circuit storage box 1 is fixed above the base 5 . The function of the main control module is to process the information from the communication module and transmit it to other modules. The contact sensing module 2 is used to sense the charging equipment, and the foreign object detection device is used to detect whether there is a foreign object in the wireless power transmission coupling area above the transmitting coil of the wireless charging pile.

The lifting system also includes a transmission device, a lifting mechanism connecting the contact sensing module 2 and the transmission device, and the transmission device is connected with the lifting circuit. In this embodiment, the transmission device is a linear motor 3, and the lifting mechanism is an X-type telescopic support 4. The linear motor 3 can directly convert the electric energy in the lifting circuit into linear motion mechanical energy, and the X-type telescopic support 4 is under the action of mechanical energy. The extension and compression are realized, and the extension and compression of the X-shaped telescopic bracket 4 realizes the lifting of the contact sensing module 2 .

In this embodiment, the X-shaped telescopic bracket 4 is divided into four endpoints, endpoint A4-1, endpoint B4-2, endpoint C4-3, and endpoint D4-4, and endpoint A and endpoint B are on the same horizontal plane, and endpoint C On the same horizontal plane as terminal D, the connection line between terminal B and terminal C intersects with the connection line between terminal A and terminal D to form intersection 4-5. The four endpoints are symmetrical about the center of intersection 4-5.

According to the accompanying drawings 2-3, the end point C is axially connected to the end of the telescopic rod of the linear motor 3, and the linear motor 3 is fixed on the base 5, and when the telescopic rod of the linear motor is fully extended, the corresponding telescopic rod on the base A chute 7 is arranged below, and the end point C moves back and forth along the chute 7 when the telescopic rod of the linear motor 3 is extended or retracted.

In this embodiment, endpoint A and endpoint B are respectively installed on both sides of the contact sensor module 2, and endpoint C is installed on the base 5. Regardless of any deformation of the X-shaped telescopic bracket 4, endpoint A is always located in the positive direction of endpoint D. Above, the end point B is always located directly above the end point C, and the end point B and the end point C are respectively connected to their fixed points to achieve axial connection. The contact sensing module 2 is also provided with a chute, which is connected to the chute on the base. The same vertical plane is used for end point A to move back and forth.

The X-shaped retractable bracket 4 is made of carbon fiber material, which is light, conducive to lifting and non-conductive, and will not interfere with wireless power transmission. The connection mode between the linear motor 3 and the X-type telescopic support 4 can ensure that the X-type telescopic support 4 rises or falls under the drive of the linear motor 3, and the linear motor 3 is controlled by the lifting circuit.

The working principle of this embodiment is: if there is a foreign object in the wireless energy transmission coupling area, the foreign object detection device will send the detected foreign object signal to the main control module through the communication module, and the main control module controls the lifting system through the lifting circuit. The X-type retractable bracket 4 performs the descending action or controls the lifting circuit not to work, and at the same time controls the charging pile to be powered off through the communication module; on the contrary, if there is no foreign object in the wireless energy transmission coupling area, the foreign object detection device sends this information through the communication module Send it to the main control module, and the main control module commands the lifting system to do the upward movement.

The contact sensing module 2 is located at the upper end of the X-shaped telescopic support 4 . When the X-type retractable support 4 is rising, the contact sensing module 2 will contact the object, and the contact status will be sent to the main control module in the form of information through the communication module, and the main control module will transmit the stop working command to the lifting circuit, and then Lifting system stopped working.

The protection device provided in this embodiment is suitable for the coupling area of various high-power wireless power transmission devices. The following uses the car wireless power transmission process as an example to specifically illustrate the use of the protection device.

Figure 2 shows the scene when the wireless power transmission coupling area protection device is working, and the lifting mechanism is in an extended state at this time, and Figure 3 is the scene when the wireless power transmission coupling area protection device is not working, and the lifting mechanism is in a retracted state at this time.

The protection process for the wireless power transfer of the car is as follows:

When the car is parked on the charging pile and ready to be charged but before the charging starts, the foreign object detection device works at this time to detect whether there is any foreign object in the coupling area. If there is, the detected information is transmitted to the main control module, and the main control module orders the lifting circuit not to work, so that the linear motor 3 does not work, so that the lifting bracket does not rise, and the main control module communicates to the wireless through the communication module. The charging pile sends a message, and the wireless charging pile is powered off; if there is no power, the main control module commands the lifting circuit to work, so that the linear motor 3 is extended, and the X-type retractable bracket 4 is driven to rise slowly until the contact sensor module 2 touches the car Chassis, now the contact sensor sends information to the main control module, and the main control module orders the lifting circuit to stop working, so that the linear motor 3 does not work, so that the lifting bracket stops rising and remains motionless.

When the charging of the wireless charging pile is completed, the charging pile sends a message to the main control module, and the main control module orders the lifting circuit to work, so that the linear motor 3 shrinks, driving the X-shaped retractable bracket 4 to descend until it reaches the bottom and stops.

Example 2

The main structure in this implementation is similar to Embodiment 1, the difference is that the control circuit also includes an alarm module connected to the output terminal of the main control module, which is used to give an alarm when a foreign object is detected, and remind relevant personnel to process.

And in this embodiment, a stretchable protective layer 6 surrounding the contact sensor module 2 and the base 5 is provided on the outside of the protective device, the upper end of which is connected to the upper end of the lifting mechanism, and the lower end is connected to the base 5 . The outer stretchable protection layer is made of plastic material, which can protect the internal structure of the protection device without affecting the wireless power transmission.

In this embodiment, a lifting plate is arranged on the top of the X-shaped telescopic bracket 4, and the endpoints A and B are located on the lower surface of the lifting plate, and the contact sensing module 2 is installed on the upper surface of the lifting plate. The position and fixing method of endpoint C and endpoint D are the same as in embodiment 1. The lower surface of the lifting plate corresponds to the chute directly above the chute on the base, and a chute for endpoint A to move back and forth is also provided.

In the working process of the structure in this embodiment, the difference from Embodiment 1 is that when a foreign object is detected, the foreign object detection device transmits the information to the main control module, and the main control module commands the lifting circuit, so that the linear motor 3 does not work, so that the lifting bracket does not rise, and the main control module orders the alarm module to work, the buzzer sounds, and the main control module sends a message to the wireless charging pile through the communication module, and the wireless charging pile is powered off.

The stretchable protection device unfolds following the extension of the X-shaped telescopic bracket 4 and folds following the contraction of the X-shaped telescopic bracket 4, effectively protecting the structure inside the protection device.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole, The technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (9)

1. wireless power transmission coupled zone protection device, it is characterised in that: described protection device includes control circuit and controls electricity Road be connected jacking system, be positioned at the sensing contact module (2) above jacking system, described jacking system include lift circuit, Actuating device, connection sensing contact module (2) and the elevating mechanism of actuating device, described actuating device is connected with lifting circuit.

2. wireless power transmission coupled zone as claimed in claim 1 protection device, it is characterised in that: described actuating device is straight Line motor (3), described elevating mechanism are X-type telescoping shoring column (4), and described protection device also includes the base fixed on the ground (5), one of them end points of X-type telescoping shoring column (4) lower section connects with the end axis of linear electric motors (3), another end of lower section Point connects with base (5) axle, and two end points of X-type telescoping shoring column (4) top are each attached to the lower section of sensing contact module (2).

3. wireless power transmission coupled zone as claimed in claim 2 protection device, it is characterised in that: outside described protection device Side is provided with encirclement sensing contact module (2) and the telescopic protection layer (6) of base (5), the both sides of its upper end respectively with contact Sensing module (2) both sides are connected, and the both sides of lower end are connected with base (5) both sides respectively.

4. wireless power transmission coupled zone as claimed in claim 4 protection device, it is characterised in that: described lifting circuit, control Circuit processed, linear electric motors (3) are each attached to base (5) top, and linear electric motors (3) are connected with lifting circuit.

5. the wireless power transmission coupled zone protection device as described in any one of claim 2-4, it is characterised in that: described X-type Telescoping shoring column (4) uses carbon fibre materials.

6. wireless power transmission coupled zone as claimed in claim 1 protection device, it is characterised in that: described protection device is positioned at The periphery of wireless charging stake transmitting coil, wireless charging stake transmitting coil is provided above detection device for foreign matter.

7. wireless power transmission coupled zone as claimed in claim 6 protection device, it is characterised in that: described control circuit includes Main control module and main control module and wireless charging stake carry out the communication module that information is mutual respectively, and wherein, main control module exports The input of end and lifting circuit is connected, sensing contact module (2), detection device for foreign matter respectively with the input phase of communication module Even.

Wireless power transmission coupled zone protection device the most as claimed in claims 6 or 7, it is characterised in that: described control circuit Also include the alarm module being connected with main control module outfan.

9. wireless power transmission coupled zone as claimed in claim 8 protection device, it is characterised in that: set in base (5) top It is equipped with the integrated circuit case (1) depositing control circuit.