Ship wireless charging device with variable coil area

Abstract

A ship wireless charging device with a variable coil area relates to the technical field of ship wireless charging and comprises a copper coil, a driving device, a slotted plate and an excitation device. The copper coils respectively penetrate through coil mounting holes in the slotted plate, the slotted plate is fixed on one side of the matching plate, and the driving device is embedded in the matching plate; an excitation device is fixedly mounted above the slotting plate; the excitation device is composed of two magnetic discharge base plates and a connecting disc. A groove is formed in the edge of the magnetism discharging base plate, and the slotting plate can penetrate through the groove and can slide in the groove; and the two magnetic discharge base plates are connected through a connecting disc. The coil penetrates through the moving part, the moving part linearly moves on the guide rail under the action of the motor, the effective area defined by the coil can be changed, and the output power can be effectively controlled. Through a dynamic energy complementing mode, automatic charging of the ship during loading and unloading or temporary stopping is achieved, the charging downtime is effectively shortened, the operation continuity is guaranteed, and the efficiency loss caused by charging interruption is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship wireless charging, in particular, especially relates to a coil area variable ship wireless charging device. BACKGROUND

[0002] Traditional ships are mostly powered by fuel engines, which have large power output but high fuel consumption, low thermal efficiency, and serious pollution of carbon emissions and nitrogen oxides, making it difficult to meet the increasingly stringent environmental protection and energy efficiency requirements. With the development of electric power energy and energy storage technology, pure electric ships have begun to be applied in offshore and inland shipping. However, the existing electric ships generally use manual plug-in charging mode, which is not only cumbersome and inefficient, but also prone to electric shock, short circuit and other safety accidents in humid, salt spray and other marine environments, seriously restricting the convenience and reliability of electric ship charging operations. Therefore, wireless charging technology is introduced to provide a systematic optimization solution for electric ships and promote industry upgrading from multiple dimensions such as efficiency, safety and environmental protection.

[0003] In the existing wireless ship charging docking system, the coil coupling module is almost composed of a flat plate or a rigid annular coil. This kind of structure exposes a series of key defects closely related to power flexible adjustment and dynamic position adaptation in the application scene of electric ships. Firstly, the effective area surrounded by the coil is fixed and cannot flexibly adjust the output power, and electric ships have different tonnage, different battery SOC state or power demand in different charging stages. Secondly, the coil size is fixed, and its maximum transmission capacity and optimal resonance frequency are determined at the design time, which is difficult to economically and efficiently adapt to various types of electric ships. Thirdly, the electric ship will move irregularly in space when it is docked in the port, which is easy to misalign. The fixed coil area will cause the working in low efficiency or off-tune state, which has serious safety hazards. SUMMARY

[0004] According to the above-mentioned technical problems that the coil area in the existing wireless ship charging device is fixed, the output power cannot be flexibly adjusted, the maximum transmission capacity and the optimal resonance frequency are determined at the design time, and it is difficult to economically and efficiently adapt to various types of electric ships, a coil area variable ship wireless charging device is provided. The present application mainly utilizes the coil passing through the moving part, and under the action of the motor, the moving part moves linearly on the guide rail, which can change the effective area surrounded by the coil and effectively control the output power.

[0005] The technical means adopted by the present application are as follows: The application discloses a coil area variable ship wireless charging device which comprises a copper coil, a driving device, a slotted plate and an excitation device. The excitation device is composed of two magnetic field generating bottom plates and a connecting disc. The copper coil passes through a row of coil mounting holes to form a magnetic coupling coil for wireless charging.

[0006] The driving device comprises a bearing screw and a motor.

[0007] The motor is connected with the guide device through a connecting part.

[0008] The guide device comprises a guide rail, a front end plate and a rear end plate.

[0009] The driving coupling part is a cut-edge flange.

[0010] The slotted plate is provided with a row of coil mounting holes on the top along the length direction.

[0011] Each of the eight equal parts of the connecting disc is provided with a circular hole for determining the installation position of the magnetic field generating bottom plate.

[0012] The wireless charging device further comprises a supporting part which is an L-shaped folding part.

[0013] Compared with the prior art, the present application has the following advantages: 1、The present application realizes automatic charging of the ship during loading and unloading or short-term berthing through a dynamic energy compensation mode, effectively reduces the charging downtime, guarantees the continuity of operation, and reduces the efficiency loss caused by charging interruption. Since the coil passes through the moving part, the moving part moves linearly on the guide rail under the action of the motor, the effective area surrounded by the coil can be changed, and the output power can be effectively controlled.

[0014] 2、The present application adds a driving coupling part, converts the rotary motion of the screw into linear motion by using a trimmed flange, reduces the inertia through a square section matching plate, and ensures positioning accuracy.

[0015] 3、The excitation device in the magnetic field control and integration of the present application adopts an eighth of a circular magnetic sheet combined with a connecting disc, controls the magnetic field strength through uniform arrangement of the magnetic sheet and adjustable air gap design. The magnetic sheet is slotted to ensure that the moving part does not interfere, and the connecting disc is positioned by a divided hole to ensure installation accuracy.

[0016] 4、The present application designs a 158mm long guide rail matched with a support plate, enhances the stiffness through a folding structure, and reserves a connecting hole position, which facilitates assembly with the motor and the excitation device, and reduces the influence of installation error on motion accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a three-dimensional view of the device of the present application.

[0019] Figure 2 It is another three-dimensional view of the coil area variable ship wireless charging device in the specific embodiment of the present application.

[0020] Figure 3 It is a front view of the coil area variable ship wireless charging device in the specific embodiment of the present application.

[0021] Figure 4 It is a coil area change schematic diagram under the action of the present application, wherein (a) is the effective area of the coil when the driving device is stationary; (b) is the change of the effective area of the coil.

[0022] In the figure: 1, motor; 2, connecting part; 3, front end plate; 4, guide rail; 5, matching plate; 6, bearing screw; 7, rear end plate; 8, supporting part; 9, magnetic bottom disc; 10, connecting disc; 11, driving coupling part; 12, slotted plate; 13, coil mounting hole; 14, bearing wheel. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0026] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application: the orientation words "inner, outer" refer to the inner and outer of the contour of each part itself.

[0027] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived herein relative to the accompanying drawings refer to the orientation of the components being described. Unless specifically stated otherwise, as apparent from the following description, it is appreciated that, for purposes of convenience and clarity, directional adjectives are not intended to confine the application to any particular spatial orientation. If an alternative spatial orientation is described herein for an object, then this alternative spatial orientation is within the scope of the present application. For example, if an object is described as "above" or "over" another object, then this object can also be positioned "below" or "under" the other object. As such, the exemplary term "above" can include both the "above" and "below" orientations. The object can also be positioned in other different ways (rotated 90 degrees or in another orientation), and the spatial relative descriptions used herein are to be interpreted accordingly.

[0028] As Figure 1 The present application provides a coil area variable ship wireless charging device, high elasticity and fatigue-resistant copper coil is wound on the surface of the moving part, the effective area surrounded by the coil is changed by the front and rear linear movement of multiple same moving parts. It includes: motor 1, connecting part 2, front end plate 3, guide rail 4, matching plate 5, bearing screw 6, rear end plate 7, support part 8; attached Figure 2 The present application provides a coil area variable ship wireless charging device, high elasticity and fatigue-resistant copper coil is wound on the surface of the moving part, the effective area surrounded by the coil is changed by the front and rear linear movement of multiple same moving parts. It includes: motor 1, connecting part 2, front end plate 3, guide rail 4, matching plate 5, bearing screw 6, rear end plate 7, support part 8; attached Figure 3 The present application provides a coil area variable ship wireless charging device, high elasticity and fatigue-resistant copper coil is wound on the surface of the moving part, the effective area surrounded by the coil is changed by the front and rear linear movement of multiple same moving parts. It includes: motor 1, connecting part 2, front end plate 3, guide rail 4, matching plate 5, bearing screw 6, rear end plate 7, support part 8; attached

[0029] Take a single drive device as an example, a drive coupling component 11, its cutting edge flange adopts square section design, middle open threaded hole sleeve into bearing screw 6, left and right two sides use middle connecting hole to connect matching plate 5, matching plate 5 is symmetrical, connect cutting edge flange and moving part;Moving part adopts epoxy resin slotted plate 12, epoxy plate top along length direction is equipped with a row of coil mounting hole 13, copper coil 15 passes through the hole, bottom center line both sides use connecting hole to connect a bearing wheel 14, bearing wheel 14 provides downward support force for slotted plate 12;Guide device material is stainless steel, which is composed of a guide rail 4, a front end plate 3 and a rear end plate 7, the guide rail 4 provides linear motion space for the moving part, the front end plate 3 is matched with the size of the motor 1, two symmetric threaded holes are opened on the top, and a rectangular plate is extended outward at the top of the rear end plate 7, which is convenient for connecting the excitation device;Connecting component 2 is an L-shaped stainless steel, which connects the motor 1 and the guide rail 4, and the upper end of which is provided with a motor 1 connecting hole in the middle, and the lower end of which is provided with four symmetric connecting holes;Support component 8 is an L-shaped folding piece, which is provided with four symmetric connecting holes at the lower end, and is connected with the excitation device;The excitation device is made of two magnetic bottom discs 9 and a connecting disc 10, and the magnetic bottom disc 9 is an eighth of a circle with a radius of 330 mm, and has a slot with a length of 235 mm and a width of 4.5 mm at the edge, which is responsible for the movement of the moving part from bottom to top and moving in the slot, and the two magnetic bottom discs 9 are connected through the connecting disc 10.

[0030] The circular boss on the motor 1 is connected with the middle motor connecting hole of the upper end plate of the connecting component 2, and the lower end plate of the connecting component 2 is connected with the guide rail 4 through the connecting hole. The motor 1 drives the bearing screw 6 to rotate, and under the action of the drive coupling component 11, the rotary motion of the bearing screw 6 is converted into linear motion along the guide rail 4. The front end plate 3 of the guide rail 4 and the connecting component 2 are fixed together, the rear end plate 7 and the magnetic bottom disc 9 are connected, and the front end plate 3 and the rear end plate 7 ensure the levelness and straightness of the installation of the guide rail 4.

[0031] The drive coupling component 11 is nested in the middle of the matching plate 5, one side of the matching plate 5 is fixed on the slotted plate 12, the drive coupling component 11 and the slotted plate 12 are connected together through the matching plate 5, which ensures that the slotted plate 12 can move smoothly forward and backward. The bearing wheel 14 is installed on both sides of the center line of the slotted plate 12, which can prevent the upward or downward force of the non-horizontal coil on the slotted plate, provide downward support force for the mechanism, and change the sliding friction along the guide rail direction into rolling friction to reduce the friction and increase the smoothness of the device operation. Figure 4As shown, the copper coil 15 passes through a row of coil mounting holes 13 to form a magnetic coupling coil for wireless charging. The linear movement of the driving coupling component 11 along the guide rail 4 drives the forward and backward linear movement of the slotted plate 12, changes the effective area surrounded by the copper coil 15, and further changes the size of the output power, thereby providing efficient and convenient charging conditions for the electric ship and realizing dynamic energy compensation. The support component 8 is installed at the tail of the rear end plate 7 and is connected with the magnetic bottom disc 9, which reduces the support force borne by the guide rail 4, increases the service life of the device, and improves the motion stability. The magnetic bottom disc 9 is an eighth of a circle, which is used to place the magnetic block, and is slotted at the edge to ensure that the slotted plate 12 can pass through the bottom disc from bottom to top and move linearly in the magnetic field. The connecting disc 10 is divided into eight equal parts, and a circular hole is opened on each division line to determine the installation position of the magnetic bottom disc 9.

[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A shipboard wireless charging device with variable coil area, characterized in that, It includes a copper coil (15), a driving device, a slotted plate (12) and an excitation device; the copper coil (15) passes through the coil mounting holes (13) on the slotted plate (12) respectively, the slotted plate (12) is fixed on one side of the mating plate (5), and the driving device is embedded in the mating plate (5); the excitation device is fixedly installed on the top of the slotted plate (12); The excitation device consists of two magnetizing base plates (9) and a connecting disc (10); the magnetizing base plate (9) is an eighth of a circular plate, and the edge of the magnetizing base plate (9) is provided with a groove for the slotted plate (12) to pass through and slide in the groove; the two magnetizing base plates (9) are connected by the connecting disc (10). The copper coil (15) passes through a row of coil mounting holes (13) to form a magnetic coupling coil for wireless charging. The driving device drives the guiding device to move linearly, which in turn drives the slotted plate (12) to move back and forth linearly, changing the effective area enclosed by the copper coil (15).

2. The shipborne wireless charging device with variable coil area according to claim 1, characterized in that, The driving device includes a bearing screw (6) and a motor (1). The bearing screw (6) is fitted with a driving coupling component (11), and the two sides of the driving coupling component (11) are in contact with the inner surface of the mating plate (5). The bearing screw (6) is connected to the output end of the motor (1).

3. The shipborne wireless charging device with variable coil area according to claim 2, characterized in that, The motor (1) is connected to the guide device through the connecting component (2). The connecting component (2) is an L-shaped stainless steel connector. Its upper horizontal plate is fixedly connected to the excitation device, and the upper and lower ends of the vertical plate are respectively connected to the motor (1) and the guide device.

4. The shipborne wireless charging device with variable coil area according to claim 3, characterized in that, The guiding device includes a guide rail (4), a front end plate (3) and a rear end plate (7). The guide rail (4) is connected to the lower end of the vertical plate of the connecting component (2). The front end plate (3) and the rear end plate (7) are fixedly installed on the front and rear ends of the guide rail (4), respectively. The bearing screw (6) is fitted inside the guide rail (4). The top of the rear end plate (7) extends outward to connect to the excitation device.

5. The shipborne wireless charging device with variable coil area according to claim 2, characterized in that, The drive coupling component (11) is a cut-edge flange with a square cross-section design. The drive device converts the rotational motion of the bearing screw (6) into linear motion through the cut-edge flange. The mating plate (5) symmetrically connects the cut-edge flange and the slotted plate (12) and uses a square cross-section to reduce inertia.

6. The shipborne wireless charging device with variable coil area according to claim 1, characterized in that, The slotted plate (12) has a row of coil mounting holes (13) along its length at the top. Copper coils (15) pass through the holes, and a bearing wheel (14) is installed at the bottom through a connecting hole. The bearing wheel (14) provides downward support for the slotted plate (12) and converts sliding friction into rolling friction.

7. The shipborne wireless charging device with variable coil area according to claim 1, characterized in that, The connecting disc (10) has circular holes on each of the eight equal division lines to determine the installation position of the magnetizing base (9).

8. The shipborne wireless charging device with variable coil area according to claim 1, characterized in that, The wireless charging device also includes a support component (8), which is an L-shaped folding piece, fixed to the tail of the rear end plate (7) and connected to the magnetizing chassis (9) to share the supporting force of the guide rail (4).

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