CN114498949A

CN114498949A - Wireless power supply device, mobile equipment and conveying system

Info

Publication number: CN114498949A
Application number: CN202210128295.5A
Authority: CN
Inventors: 梁涛; 毛伟; 胡锦敏
Original assignee: Shenzhen Hertz Innovation Technology Co ltd
Current assignee: Shenzhen Hertz Innovation Technology Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-05-13

Abstract

The invention belongs to the technical field of wireless power supply, and particularly relates to a wireless power supply device, mobile equipment and a conveying system. The wireless power supply device only needs to be provided with one set of transmitting device, wherein one side of the transmitting coil positioned at the fork or the switching track can be interrupted or lost due to avoiding the operation of the wireless power receiving device, when the wireless power receiving device passes through the fork or the track switching, the magnetic field coupling of the missing side of the transmitting coil is weakened to lose the power taking capability, and the transmitting coil at the other side and the wireless power receiving device are still in a normal coupling body, so that a stable electromagnetic field can be formed, electric energy can be obtained, and the uninterrupted power supply is ensured. The problem that the power taking capability of the existing power taking device is rapidly reduced when the power taking device passes a fork or is switched between tracks is solved; and only one set of transmitting device is needed, so that the cost is greatly reduced, and the installation space is saved.

Description

Wireless power supply device, mobile equipment and conveying system

Technical Field

The invention belongs to the field of wireless power supply, and particularly relates to a wireless power supply device, mobile equipment and a conveying system.

Background

The wireless power supply technology is one of the most active research directions at present, and has very wide application prospects and development spaces in the aspects of small-sized electronic equipment, electric vehicles, smart homes, unmanned equipment (such as robots and unmanned vehicles) and the like due to the characteristics of convenience, reliability, safety and high efficiency.

The wireless power supply technology is a new technology for providing power supply for static or moving electric equipment in real time in a non-electrical contact mode. The technology is a wireless power transmission mode based on an inductive coupling principle or nuclear magnetic resonance, mainly takes an electromagnetic field as a medium for power transmission, and improves the magnetic field frequency, reduces the air gap loss and realizes the wireless power transmission through a power electronic technology based on a transformer loose inductive coupling structure. The wireless power transmission technology has the characteristics of high transmission power which can reach several kilowatts, and high efficiency in a very close distance (an allowed air gap).

The coupling mechanism of the non-contact power supply technology includes a transmitting coil (alternating current track line), a receiving coil and a magnetic core (collectively referred to as a power extractor), and induces a current by generating a high-frequency alternating magnetic field in the receiving coil by utilizing the magnetic conduction effect of the magnetic core.

In the prior art, non-contact power supply is used for supplying electric energy to a trolley moving along a track (such as a trolley in an overhead crane system OHT in a semiconductor factory or a trolley transported on a hanging track), but a trolley traveling path usually has a branch path, and a transmitting coil track is generally arranged along the trolley traveling track, but the problem that the transmitting coil track blocks the trolley traveling when the path is branched occurs.

Generally, the solution is to install more than two sets of electricity taking devices on the moving trolley, and arrange more than two sets of transmitting tracks or/and transmitting devices along the travelling track of the trolley, so as to ensure that at least one electricity taking device is well coupled with the transmitting tracks at the bifurcation. However, this deployment method requires more than two sets of power supply and transmitting devices, and is relatively high in cost.

In another case, when a set of transmitting device is provided, the fork or the branch during track switching needs to be avoided when the transmitting coil track is arranged, otherwise the operation of the trolley is interfered.

Referring to fig. 1 and 2, when the existing E-shaped or U-shaped electricity taker is used, it is installed horizontally. The first track 2 is an operation track, the second track 3 is a transmitting coil track, wherein when the second track 3 is arranged along the outer ring of the first track 2, when the E-shaped or U-shaped electricity taking device 1 moves straight along the first track 1, the first position is at the moment, taking the E-shaped electricity taking device 1 as an example, the cross section 201 of the electricity taking device at the first position is referred to, and at the moment, the electricity taking device has no interference and can normally take electricity. But when moving to a turn, here the second position, reference is made to the cross section 202 of the electricity taker in the second position, where it cannot go straight or turn because of the interference of the second track 3.

Referring to fig. 3, if the second track 3 is disposed along the main road of the first track 2 and goes straight through the curved road, which is the third position, the electricity can be normally drawn by referring to the cross section 203 of the electricity-drawing device at the third position. However, when turning, the second rail 3 interferes with the power take-off with reference to the cross section 202 of the power take-off at the second position, and the power take-off cannot be turned.

For the E-shaped or U-shaped side-mounted manner, when the second track 3 is disposed along the outer ring of the first track 2, taking the E-shaped electricity taking device 1 as an example, referring to fig. 4, the electricity taking device is mounted inside, and when the electricity taking device turns, referring to the cross section 202 of the electricity taking device at the second position, the inside second track 3 is missing, so that the magnetic field coupling is weakened, the electricity taking power is lost, and the electricity taking cannot be performed.

Referring to fig. 5, the E-shaped electricity taker 1 is installed on the outer side, and when the electricity taker passes through a turn and moves straight, referring to the cross section 203 of the electricity taker at the third position, the outer second track 3 is missing, so that the magnetic field coupling is weakened, the electricity taker capacity is lost, and electricity cannot be taken.

Disclosure of Invention

The invention provides a wireless power supply device, aiming at solving the problems that the cost of the existing power taking device is high when the power taking device passes a fork or switches tracks, and the power taking capability is reduced or lost due to the fact that the magnetic field coupling is weakened because a transmitting coil at one side avoids the interruption or the loss of the power taking device when a set of transmitting coils is configured and the power taking device passes the fork or switches tracks.

The present invention is achieved in this way, and provides a wireless power supply device, including a wireless power receiving device and a transmitting device, wherein the wireless power receiving device includes: the wireless power receiving assembly and the receiving controller;

the wireless power receiving assembly includes:

the magnetic core comprises a first magnetic block, a second magnetic block and a third magnetic block, wherein the first magnetic block and the second magnetic block are arranged in parallel, and the third magnetic block is connected with the centers of the first magnetic block and the second magnetic block;

the receiving coil surrounds the outer edge of the third magnetic block;

the transmitting device includes:

the transmitting coil is arranged along the movement direction of the wireless power receiving device and penetrates through a first open slot and/or a second open slot which are formed between the third magnetic block and the first magnetic block and/or the second magnetic block respectively;

and the transmitting controller is connected with the transmitting coil.

Still further, the third magnetic block is perpendicular to the first and second magnetic blocks.

Furthermore, the wireless power supply device further comprises a first mounting part, wherein the first mounting part is provided with a first cavity matched with the magnetic core and the receiving coil, and the magnetic core and the receiving coil are arranged in the first cavity.

Further, the receiving controller is connected with the wireless power receiving assembly; or

The receiving controller is integrated with the wireless power receiving assembly.

An embodiment of the present invention provides a mobile device, including: the wireless power supply device comprises an equipment main body and a driving mechanism, wherein the driving mechanism adopts the wireless power supply device for supplying power, and the wireless power receiving device is fixed on the equipment main body.

Furthermore, the mobile equipment is a logistics sorting robot, an inspection robot, a trolley in a crown block system or an AGV trolley.

An embodiment of the present invention provides a conveying system, including:

a first track;

the mobile equipment moves along the first rail, and the object stage is arranged on the mobile equipment;

the second track is arranged along the first track, and an avoidance mechanism for avoiding a turnout or a bend is arranged on the second track; the second track is used for accommodating or supporting the transmitting coil.

Furthermore, the connection position of the avoiding mechanism and the second track is positioned on the straight line section of the second track.

Furthermore, the avoiding mechanism is formed by bending the second rail.

When the wireless power receiving device moves, alternating current is introduced into the transmitting coil and respectively flows to the first magnetic block and the second magnetic block through two ends of the third magnetic block, and two electromagnetic fields are formed on two sides of the third magnetic block. The wireless power supply device only needs to be provided with one set of transmitting device, wherein one side of the transmitting coil positioned at the fork or the switching track can be interrupted or lost due to avoiding the operation of the wireless power receiving device, when the wireless power receiving device passes through the fork or the track switching, the magnetic field coupling of the missing side of the transmitting coil is weakened to lose the power taking capability, and the transmitting coil at the other side and the wireless power receiving device are still in a normal coupling body, so that a stable electromagnetic field can be formed, electric energy can be obtained, and the uninterrupted power supply is ensured. The problem that the power taking capability of the existing power taking device is rapidly reduced when the power taking device passes a fork or is switched between tracks is solved; and only one set of transmitting device is needed, so that the cost is greatly reduced, and the installation space is saved.

Drawings

FIG. 1 is a schematic diagram of the magnetic field distribution of a prior art type E power extractor;

FIG. 2 is a schematic structural view of a horizontal mounting and track arrangement of a prior art type E power takeoff;

FIG. 3 is another schematic diagram of a horizontal mounting and track arrangement of a prior art type E power takeoff;

FIG. 4 is a schematic structural view of a prior art E-type power takeoff side mount and track arrangement;

FIG. 5 is another schematic structural view of a prior art E-type power takeoff side mount and track arrangement;

FIG. 6 is a schematic diagram of a magnetic core according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a magnetic field distribution of a magnetic core provided by an embodiment of the present invention;

FIG. 8 is a schematic diagram of another magnetic field distribution for a magnetic core provided in accordance with an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a mobile device provided in an embodiment of the present invention;

FIG. 10 is a schematic diagram of a track profile of a conveyor system provided by an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a conveying system provided by an embodiment of the present invention;

fig. 12 is another schematic structural diagram of the conveying system provided by the embodiment of the invention.

The reference numbers illustrate:

1. e type power supply; 2. a first track; 201. a cross-section of the electricity taker at a first location; 202. a cross-section of the electricity taker at a second location; 203. a cross-section of the electricity taker at a third location; 3. a second track; 31. a rail bracket; 4. a gap is formed;

10. a magnetic core; 11. a first magnetic block; 12. a second magnetic block; 13. a third magnetic block; 111. a first open slot; 112. a second open slot;

20. a receiving coil; 30. a transmitting coil; 301. an avoidance mechanism;

40. receiving a controller; 50. a launch controller; 60. a compensation capacitor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a wireless power supply device, which only needs to be provided with a set of transmitting device, wherein one side of a transmitting coil positioned at a fork or a switching track can be interrupted or lost due to avoiding the operation of a wireless power receiving device, when the wireless power receiving device passes through the fork or the track switching, the magnetic field coupling of the lost side of the transmitting coil is weakened to lose the power taking capability, and the transmitting coil at the other side and the wireless power receiving device are still in a normal coupling body, so that a stable electromagnetic field can be formed, electric energy can be obtained, and the uninterrupted power supply is ensured. The problem that the power taking capability of the existing power taking device is rapidly reduced when the power taking device passes a fork or is switched between tracks is solved; and only one set of transmitting device is needed, so that the cost is greatly reduced, and the installation space is saved.

Example one

Referring to fig. 6 to 8, a first embodiment of the present invention provides a wireless power supply apparatus including a wireless power receiving component and a receiving controller 40, and a transmitting apparatus;

wherein, wireless power receiving assembly includes:

the magnetic core 10, wherein the magnetic core 10 comprises a first magnetic block 11 and a second magnetic block 12 which are arranged in parallel, and a third magnetic block 13 which is connected with the centers of the first magnetic block 11 and the second magnetic block 12;

and the receiving coil 20 is arranged around the outer edge of the third magnetic block 13.

In the embodiment of the present invention, the magnetic core 10 refers to a sintered magnetic metal oxide composed of various iron oxide mixtures, manganese-zinc ferrite and nickel-zinc ferrite, and may also be a nanocrystalline magnetic material, which may be used to increase the magnetic induction intensity of the electromagnet.

In the embodiment of the present invention, the receiving controller 40 is connected to the receiving coil 20. Under the control of the receiving controller 40, the receiving coil 20, after receiving the magnetic field, can convert the energy of the magnetic field into an electrical signal, and the electrical signal is transmitted to the load device to supply power to drive the load device to operate.

In another embodiment, the receiving controller 40 is provided integrally with the wireless power receiving component to save an installation space.

Two open grooves are formed among the first magnetic block 11, the second magnetic block 12 and the third magnetic block 13, and are respectively located in a first open groove 111 at the left side of the third magnetic block 13 and a second open groove 112 at the right side of the third magnetic block 13.

The transmitting device includes: the transmitting coil 30 is arranged along the movement direction of the wireless power receiving device, and penetrates through a first open slot 111 and/or a second open slot 112 formed between the third magnetic block 13 and the first magnetic block 11 and the second magnetic block 12 respectively; and a transmission controller 50, the transmission controller 50 being connected with the transmission coil 30.

In the embodiment of the present invention, the transmitting coil 30 is provided with a plurality of strips and stacked to enhance the electromagnetic coupling effect with the receiving coil 20. The transmitting coil 30 avoids a fork or a bend, avoiding interference with the operation of the wireless energy receiving device.

Under the control of the transmitting controller 50, alternating current is introduced into the transmitting coil 30, the alternating current passes through two ends of the third magnetic block 13 and respectively reaches the first magnetic block 11 and the second magnetic block 12, two electromagnetic fields are formed on two sides of the third magnetic block 13, under the control of the receiving controller 40, the receiving coil 20 converts magnetic field energy into an electric signal after receiving the magnetic field, and the electric signal is transmitted to load equipment to supply power to drive the load equipment to work.

Specifically, the transmitting coil 30 passes through both sides of the third magnetic block 13, i.e., is positioned at both sides of the receiving coil 20. An electric signal is input into the transmitting coil 30, the transmitting coil 30 converts the electric signal into a magnetic field, the magnetic field is diffused to the magnetic core 10, the magnetic core 10 collects the magnetic field and is diffused outwards along the arrangement direction of the magnetic core, and the magnetic field is diffused outwards along the third magnetic block 13 towards two ends of the first magnetic block and two ends of the second magnetic block 12 respectively. Thereby forming two electromagnetic fields on both sides of the third magnetic block 13. The receiving coil 20 induces an electromagnetic field and generates an alternating current, thereby implementing wireless power supply.

Wherein, the wireless power receiving device only needs to be matched with one set of transmitting coil track, and the transmitting coil 30 is arranged along the transmitting coil track. When the wireless energy receiving device passes through the turnout or switching track, because the transmitting coil track on one side of the turnout or switching track is lost due to avoidance of the turnout or switching track, the magnetic field coupling on the lost side of the transmitting coil track is weakened and the power taking capability is lost, and the transmitting coil track on the other side and the wireless energy receiving assembly are still in a normal coupling body, a stable electromagnetic field can be formed, electric energy can be obtained, and the uninterrupted power supply is ensured.

Referring to fig. 7, the wireless power supply device of this embodiment only needs one set of transmitting coil 30 and a transmitting controller, and one set of transmitting coil track matched with the transmitting coil 30, when the wireless power receiving assembly moves on the track matched with the transmitting coil 30, alternating current is introduced into the transmitting coil 30, the alternating current passes through two ends of the third magnetic block 13 to the first magnetic block 11 and the second magnetic block 12 respectively, two electromagnetic fields are formed at two sides of the third magnetic block 13, and the receiving coil 20 induces the electromagnetic fields and generates alternating current.

Referring to fig. 10, in particular, the wireless power supply apparatus may be applied to a mobile device, when the mobile device is operated to a first position, the transmitting coils and the wireless power receiving components on both sides are in a normally coupled state, and two electromagnetic fields are formed on both sides of the third magnetic block 13, and the transmitting coil 30 passes through the first opening groove 111 and the second opening groove 112. When the mobile device moves to the second position, that is, when the mobile device passes through the intersection of the first track 2 or the track switching, the track of the transmitting coil on one side is interrupted or lost due to the fact that the transmitting coil runs away from the wireless power receiving device, so that magnetic field coupling is weakened and the power taking capability is lost. And the transmitting coil track on the other side passes through the first open slot 111 or the second open slot 112, can still be in a normal coupling body with the wireless energy receiving device, still can form a stable electromagnetic field, and obtains electric energy, and the electric energy at this moment is half of that in full power, so that uninterrupted power supply is ensured. The problem that the power taking capacity of the existing power taking device is rapidly reduced when the existing power taking device passes a turnout or is switched on a track is solved, and in addition, the half-power taking is only carried out at the turnout or a bend, so that the power taking at other stations is not influenced; and only one set of transmitting coil track and transmitting device is needed, so that the cost is greatly reduced, and the space is saved.

Example two

Referring to fig. 6, on the basis of the first embodiment, a second embodiment of the present invention provides a wireless power supply device, wherein the first magnetic block 11 and the second magnetic block 12 have the same size.

In the embodiment of the present invention, the magnetic core 10 constitutes an "H" shaped structure, which may be referred to as an H-shaped electricity extractor. Two open grooves are formed among the first magnetic block 11, the second magnetic block 12 and the third magnetic block 13, and are respectively located in a first open groove 111 at the left side of the third magnetic block 13 and a second open groove 112 at the right side of the third magnetic block 13. And the sizes of the first magnetic block 11 and the second magnetic block 12 are the same, so that the whole structure of the wireless energy receiving device is firmer and more reliable. Wherein the transmitting coil 30 passes through the first and

second opening grooves

111 and 112. The receiving coil 20 is arranged on the third magnetic block 13 in a surrounding manner. The transmitter coil 30 is positioned adjacent to the receiver coil 20 and the two are capable of mating. Wherein, symmetrical magnetic lines are formed respectively with the transmitting coils 30 at both sides as the center.

In another embodiment, the first magnetic block 11, the second magnetic block 12 and the third magnetic block 13 are integrally formed, so that the overall structure of the wireless power receiving device is firmer and more reliable.

Further, the third magnetic block 13 is perpendicular to the first and second

magnetic blocks

11 and 12. The first end of the third magnetic block 13 is vertically connected with the first magnetic block 11, and the distances from the first end to the two ends of the first magnetic block 11 are the same. The second end of the third magnetic block 13 is vertically connected with the second magnetic block 12, and the distances from the second end to the two ends of the second magnetic block 12 are the same. On one hand, two identical and stable electromagnetic fields are formed on the left side and the right side of the third magnetic block 13, so that the power-taking electric energy of the wireless electric energy receiving assembly is improved, and in addition, when the power-taking electric energy is lost on one side, the electric energy is obtained through the stable electromagnetic field on the other side, so that the uninterrupted power supply is ensured. When electricity is taken through one side, the power is half of full power, and uninterrupted power supply is ensured. On the other hand, the arrangement of the H-type radio energy receiving device further increases the firmness and reliability of the overall structure.

In another embodiment, the first and second

magnetic blocks

11 and 12 are different sizes. In the embodiment of the present invention, the magnetic core 10 constitutes an "i" shaped structure, which may be called an i-shaped power extractor. Two open grooves are formed among the first magnetic block 11, the second magnetic block 12 and the third magnetic block 13, and are respectively located in a first open groove 111 at the left side of the third magnetic block 13 and a second open groove 112 at the right side of the third magnetic block 13. Wherein the transmitting coil 30 passes through the first and

second opening grooves

111 and 112, respectively, at the time of the straight line segment of the second track 3. And only pass through the first opening groove 111 or the second opening groove 112 when the second track 3 is located at a fork or a turn.

It is understood that in other embodiments, the first magnetic block 11 and the second magnetic block 12 may be arranged as required to form two electromagnetic fields on both sides of the third magnetic block 13, depending on the mounting process.

Further, the thickness of the third magnetic block 13 is larger than the first magnetic block 11 and the second magnetic block 12, so that two electromagnetic fields are formed on both sides of the third magnetic block 13.

In the embodiment of the present invention, the thickness of the third magnetic block 13 is equal to the sum of the thicknesses of the first magnetic block 11 and the second magnetic block 12, so as to form two identical electromagnetic fields on two sides of the third magnetic block 13, thereby obtaining the same electric energy on two sides. It will be appreciated that the dimensions of the core 10 are selected to meet the output power requirements of the application.

EXAMPLE III

On the basis of the first embodiment or the second embodiment, a third embodiment of the present invention provides a wireless power supply apparatus, wherein the wireless power receiving assembly further includes a first mounting member, the first mounting member is provided with a first cavity adapted to the magnetic core 10 and the receiving coil 20, and the magnetic core 10 and the receiving coil 20 are disposed in the first cavity.

In the embodiment of the present invention, the first cavity of the first mounting member is adapted to the shape of the magnetic core 10, and the first cavity has a corresponding large space at the position of the third magnetic block 13 to simultaneously adapt to the receiving coil 20 wound around the third magnetic block 13, so that the first cavity can simultaneously accommodate the magnetic core 10 and the receiving coil 20. Wherein, the first installed part adopts the plastic material.

The wireless power supply device of this embodiment makes wireless power receiving component overall structure more firm reliable through setting up first installed part, and can set up the installation with magnetic core 10, receiving coil 20 according to the demand, provides the guard action for magnetic core 10 and receiving coil 20 simultaneously.

Example four

In addition to the third embodiment, the magnetic core 10 according to the fourth embodiment of the present invention is made of soft magnetic material to increase magnetic permeability. For example: ferrite, nanocrystalline magnetic materials, and the like.

EXAMPLE five

Referring to fig. 9 and 10, a fifth embodiment of the present invention provides a mobile device including: the wireless power supply device comprises an equipment main body and a driving mechanism, wherein the driving mechanism adopts the wireless power supply device for supplying power, and a wireless energy receiving device is fixed on the equipment main body.

In the embodiment of the present invention, the apparatus main body is provided with a pulley, the pulley moves in the first rail 2, and the receiving controller 40 is fixed to the apparatus main body. The device main body is connected with the pulley through a connecting suspender.

In other embodiments, the apparatus body may be moved within the first track 2 by a belt or conveyor line.

Specifically, the second track 3, that is, the transmitting coil track, is arranged along the first track 2, wherein the second track 3 is provided with an avoidance mechanism 301 at a turnout or a bend, so that the second track 3 does not cause interference to the mobile equipment when the mobile equipment moves on the first track 2. The second track 3 is provided with a cavity for accommodating the transmitter coil 30. The transmitting coil 30 is provided with a sufficient length to extend within the second track 3.

In the embodiment of the present invention, the apparatus main body is an overhead traveling crane that runs in the first track 2, the driving device is a driving motor, and the wireless power supply device supplies power to the driving motor. The second rail 3 may pass through both sides of the wireless power receiving assembly while the pulley moves within the straight section of the first rail 2. Alternating current is introduced into the transmitting coil 30, the alternating current respectively flows to the first magnetic block 11 and the second magnetic block 12 through two ends of the third magnetic block 13, two electromagnetic fields are formed on two sides of the third magnetic block 13, under the control of the receiving controller 40, the receiving coil 20 converts magnetic field energy into an electric signal after receiving the magnetic field, and the electric signal is transmitted to the driving motor to drive the overhead travelling crane to move.

Specifically, when the overhead traveling crane passes through a rail intersection or rail switching, the transmitting coil rail on one side is interrupted or lost due to avoidance of the overhead traveling crane, so that magnetic field coupling is weakened and the power taking capability is lost, while the transmitting coil rail on the other side can pass through the wireless power receiving assembly and still be in a normal coupling body with the wireless power receiving assembly, so that a stable electromagnetic field can be formed, electric energy can be obtained, and uninterrupted power can be ensured so that the overhead traveling crane can move in the first rail.

In other embodiments, the equipment body includes, but is not limited to, a logistics sorting robot, an inspection robot, an Overhead Hoist Transport (OHT) cart, or an AGV cart. Among them, an AGV (Automated Guided Vehicle, abbreviated as AGV, refers to a transport Vehicle equipped with an electromagnetic or optical automatic navigation device, capable of traveling along a prescribed navigation path, and having safety protection and various transfer functions) is provided. The apparatus body may be movable along a predetermined track, and may be continuously supplied with power while the wireless power receiving device is moved.

EXAMPLE six

Referring to fig. 10 to 12, the present embodiment provides a conveying system including:

a first track 2;

the moving device runs along the first track 2 and is provided with an object stage according to the fifth embodiment;

the second track 3 is arranged along the first track 2, and the second track 3 is provided with an avoidance mechanism 301 for avoiding a turnout or a bend; the second track 3 is used to house or support the transmitter coil 30.

In the embodiment of the present invention, a cavity for accommodating the transmitting coil 30 is provided in the second rail 3 to protect the transmitting coil 30.

In particular, the mobile device runs along a first track 2, wherein a second track 3 is arranged along the first track 2. On straight road sections, the second track 3 is arranged along both sides of the wireless power receiving assembly, for example: the second rail 3 passes through the first notch 111, extends along the first rail 2, and then returns to and passes through the second notch 112. When the vehicle is at a turnout or a turn, the second track 3 on one side needs to avoid the turnout or the turn, so that the avoidance mechanism 301 is arranged at the turnout or the turn. The avoidance mechanism 301 is formed by bending the second track 3 to avoid a fork or a curve, and the transmitting coil 30 extends along the second track. Specifically, the avoidance mechanism 301 can be bent upward to avoid a turnout or a curve, and can also be bent downward to avoid a turnout or a curve. In other embodiments, the avoidance mechanism 301 can be directly bent by the transmitting coil 30 to avoid a turnout or a bend, and an avoidance track is not required to be arranged on the outer edge of the avoidance mechanism, so as to save the installation process and cost.

And a preset distance is reserved between the second track 2 and the third magnetic block 13, so that the second track and the third magnetic block are prevented from being touched when the vehicle turns. A preset distance is also left between the second track 2 and the first magnetic block 11 and the second magnetic block 12. Wherein, the magnetic lines of force surrounding the second track 2 are symmetrical respectively taking the second track 2 at one side as the center.

In the embodiment of the invention, the length of the first magnetic block 11 and the second magnetic block 12 does not exceed the length of the mobile device by taking the running direction of the first track 2 as the length direction. The widths of the first and second

magnetic blocks

11 and 12 are greater than the width of the second track 3. The lengths of the first magnetic block 11 and the second magnetic block 12 are related to inductance and mutual inductance required by output power; the height of the third magnetic block 13 determines the number of turns of the receiving coil 20. In the case where the output power is satisfied, the smaller the arrangement of the magnetic core 10, the better.

In another embodiment, the second track 3 comprises a plurality of rail brackets 31 located on both sides of the transmitting coil 30 for supporting the transmitting coil 30. The transmitting coil 30 is disposed along the first track 2, and is bent directly at the intersection to form an avoidance mechanism 301 to cross the intersection or a curve. And a shell is not required to be arranged at the outer edge of the transmitting coil 30, so that the installation procedure is simplified and the installation cost is saved.

Further, the connection position of the avoidance mechanism 301 and the second rail 3 is located on the straight line section of the second rail 3.

Referring to fig. 10, in the embodiment of the present invention, the connection point is the notch 4 of the second track 3, and the notch 4 is disposed on the straight line segment of the second track 3, because the second track 3 on one side is missing, and the second track 3 on the other side and the radio energy receiving device (power taker) are still in a normal coupling state, a stable electromagnetic field can still be formed, and normal power taking is not affected.

Referring to fig. 11, in the embodiment of the present invention, the avoidance mechanism 301 is formed by bending the second track 3 so as to avoid a curve or an intersection, and the transmitting coil 30 extends along the avoidance mechanism 301. The second track 3 passes through a curve or a fork by an avoidance mechanism. Specifically, the avoidance mechanism 301 may be bent and detoured from above the curve or the intersection, or may be detoured from below the curve or the intersection, so as not to hinder the operation of the mobile device. That is, the transmitting coil can be detoured from the upper part of the bend or the fork, and also can be detoured from the lower part of the bend or the fork.

When the mobile device runs along the first track 2, the wireless power receiving device is driven to run along the second track 3, alternating current is introduced into the transmitting coil 30, the alternating current passes through two ends of the third magnetic block 13 to the first magnetic block 11 and the second magnetic block 12 respectively, two electromagnetic fields are formed on two sides of the third magnetic block 13, under the control of the receiving controller 40, after the receiving coil 20 receives the magnetic fields, magnetic field energy is converted into electric signals, and the electric signals are transmitted to the mobile device to supply power to drive the mobile device to work.

Referring to fig. 11, the mobile device is a trolley of an overhead traveling crane system, the transmitting coil 30 is disposed in the second track 3, and the transmitting coil 30 extends along the second track 3 and is disposed to avoid a crossing or a curve. When the trolley moves in the traveling direction indicated by the arrow in fig. 11 and passes through the intersection, the second rail 3 located on the inner side is lost through the avoidance mechanism 301, so that the magnetic field coupling on the inner side is weakened and the power-taking capability is lost, and the second rail 3 located on the outer side and the wireless power receiving device (power-taking device) are still in a normal coupling state, so that a stable electromagnetic field can be formed, electric energy can be obtained, and the uninterrupted power supply is ensured.

Referring to fig. 12, the cart moves in the traveling direction indicated by the arrow in fig. 12, when the cart turns left, the inside second rail 3 loses its rail due to the avoidance mechanism, so that the magnetic field coupling on the inside weakens and the power-taking capability is lost, and the outside second rail 3 and the wireless power receiving device (power-taking device) are still in a normal coupling state, so as to form a stable electromagnetic field and obtain electric energy, thereby ensuring that the power is not cut off.

In the embodiment of the present invention, the first track 2 is an endless track or a track with a fork. The second track 3 is provided along the first track, and an avoidance mechanism 301 for avoiding a turnout or a curve is provided on the second track 3.

In another embodiment of the present invention, the first track 2 is connected to other tracks, and the other tracks can be cut through the adapter. When the mobile equipment enters other tracks, the power taking capability is lost due to weakening of magnetic field coupling caused by interruption of the track of the transmitting coil on one side, and the other side can still form a stable electromagnetic field to obtain electric energy and ensure that the power is not cut off.

It will be appreciated that in other embodiments, the first track 2 may also be other regular or irregular tracks arranged according to the actual needs of the user. While the second track 3 is arranged along the first track, an avoidance mechanism 301 is arranged at a switch or a bend, depending on the situation of the first track 2, to avoid interfering with the operation of the mobile device.

Further, the transmission system further comprises a compensation capacitor device 60 for compensating reactive power generated by the wireless power supply system when in use, so as to improve the problem of reduced electric energy use efficiency.

In the conveying system of the embodiment, when the mobile device moves on the first track 2, two electromagnetic fields are formed on two sides of the mobile device, and under the control of the receiving controller 40, after receiving the magnetic fields, the receiving coil 20 converts magnetic field energy into an electrical signal, and the electrical signal is transmitted to the mobile device to supply power to drive the mobile device to move. The problem that when the mobile equipment passes through a rail intersection or rail switching, due to the fact that the transmitting coil on one side of the intersection or switching rail is lost due to avoidance, magnetic field coupling is weakened and the power taking capability is lost is solved, and the transmitting coil on the other side and the power taking device are still in a normal coupling body, a stable electromagnetic field can be still formed, electric energy is obtained, and uninterrupted power supply is guaranteed. The problem of current wireless charging device when crossing the fork or switching track, get the electrical capacity and descend rapidly is solved, guaranteed conveying system and gone on steadily. In addition, the conveying system only needs to be provided with one set of transmitting coil track and one set of transmitting device, the cost of the conveying system is reduced, and the installation space is saved.

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 invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A wireless power supply apparatus comprising a wireless power receiving apparatus and a transmitting apparatus, wherein the wireless power receiving apparatus comprises: the wireless power receiving assembly and the receiving controller;

the wireless power receiving assembly includes:

the receiving coil surrounds the outer edge of the third magnetic block;

the transmitting device includes:

and the transmitting controller is connected with the transmitting coil.

2. The wirelessly powered device of claim 1 wherein the third magnetic block is perpendicular to the first magnetic block and the second magnetic block.

3. The wirelessly powered device of claim 1 wherein the wirelessly powered power receiving assembly further comprises a first mounting member having a first cavity adapted to the magnetic core and the receiving coil, the magnetic core and the receiving coil being disposed in the first cavity.

4. The wireless power supply apparatus according to claim 1,

the receiving controller is connected with the wireless power receiving assembly; or

5. A mobile device, comprising: the equipment main body and the driving mechanism are characterized in that the driving mechanism adopts the wireless power supply device as claimed in claim 1 to supply power, and the wireless power receiving device is fixed on the equipment main body.

6. The mobile device of claim 5, wherein the mobile device is a logistics sorting robot, an inspection robot, a cart in a crown block system, or an AGV cart.

7. A conveyor system, comprising:

a first track;

the mobile device according to claim 5 moving along the first track, wherein a stage is arranged on the mobile device;

8. The delivery system of claim 7,

the connection position of the avoiding mechanism and the second track is positioned on the straight line section of the second track.

9. The delivery system of claim 7,

the avoiding mechanism is formed by bending the second track.