Automobile wireless charging receiving end module and buckle assembly

Abstract

The utility model relates to the technical field of automobile wireless charging, and particularly discloses an automobile wireless charging receiving end module and a buckle assembly, and the automobile wireless charging receiving end module comprises a charging coil assembly, a positioning antenna and an insulating film. Wherein the positioning antenna comprises a first antenna and a second antenna, and the first antenna and the second antenna are arranged on the charging coil assembly in a crossed manner; the insulating film is arranged on the positioning antenna. According to the arrangement, the overall thickness of the automobile wireless charging receiving end module is greatly reduced, large-area shielding cannot be caused to the charging coil assembly, and heat dissipation of the charging coil assembly is facilitated; the first antenna and the second antenna which are arranged in a crossed manner enable positioning to realize a larger action range; by arranging the insulating film on the positioning antenna, the positioning antenna can be prevented from being broken down by large current in the charging coil assembly, and the positioning antenna is effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a car wireless charging technical field especially relates to a car wireless charging receiving end module and buckle subassembly. BACKGROUND

[0002] Electric vehicle wireless charging technology, based on the resonance electromagnetic induction principle, through the magnetic coil of the transmitting end module in the charger, the current is transmitted to the charging coil of the receiving end module at the bottom of the car, when the two are aligned, the charging starts. In order to ensure the docking accuracy of the charger and the car, the receiving end module realizes the determination of the relative position of the receiving end module and the transmitting end module through the positioning antenna.

[0003] The current positioning antenna adopts the PCB structure, and the PCB board is pasted on one side of the charging coil. Since the PCB board is thick and has a plate structure, the product thickness of the receiving end module is increased, and the heat dissipation of the charging coil is not facilitated.

[0004] Therefore, it is urgent to research a car wireless charging receiving end module and buckle subassembly to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a car wireless charging receiving end module and buckle subassembly to solve the problems of the thickness increase of the receiving end and the poor heat dissipation effect in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The first aspect of the application provides a car wireless charging receiving end module, which comprises:

[0008] A charging coil assembly;

[0009] A positioning antenna comprising a first antenna and a second antenna, the first antenna and the second antenna are arranged in the charging coil assembly;

[0010] An insulating film is arranged on the positioning antenna.

[0011] As an optional technical scheme of the car wireless charging receiving end module, the charging coil assembly comprises a partition plate and a coil body, and the coil body is spirally arranged on one side of the partition plate.

[0012] As an optional technical scheme of the car wireless charging receiving end module, the intersection of the first antenna and the second antenna is located on the winding axis of the coil body.

[0013] As an optional technical scheme of the automobile wireless charging receiving end module, at least one of the first antenna and the second antenna is a bending structure, the bending structure comprises a first segment and a second segment, and the first segment and the second segment are arranged on both sides of the charging coil assembly.

[0014] As an optional technical scheme of the automobile wireless charging receiving end module, in the bending structure, one side of the partition plate where the coil body is arranged is the first segment, and the other side is the second segment, and the insulating film is arranged at least one of the first segment and the second segment.

[0015] As an optional technical scheme of the automobile wireless charging receiving end module, the insulating film is located between the first segment and the coil body, and is arranged at least at a portion where the first segment and the coil body coincide.

[0016] As an optional technical scheme of the automobile wireless charging receiving end module, the first segment and the second segment are parallel.

[0017] As an optional technical scheme of the automobile wireless charging receiving end module, the insulating film is a PI film.

[0018] The second aspect of the present application provides a buckle assembly for installing the positioning antenna in the automobile wireless charging receiving end module in any of the above technical schemes to the charging coil assembly, comprising:

[0019] a center buckle mechanism capable of being installed on the charging coil assembly and used for fixing the positioning antenna; and / or,

[0020] an edge buckle mechanism capable of being installed at an edge position of the charging coil assembly and used for fixing the positioning antenna to the charging coil assembly.

[0021] As an optional technical scheme of the buckle assembly, the center buckle mechanism comprises a clamping base and a clamping cover, wherein:

[0022] The clamping base has a first wire slot and a second wire slot intersecting with each other, and the first wire slot and the second wire slot are respectively provided for the first antenna and the second antenna to pass through;

[0023] The clamping cover can be fixed to the clamping base, and the clamping cover is configured to cooperate with the clamping base to fasten the positioning antenna to the charging coil assembly.

[0024] As an optional technical scheme of the buckle assembly, the edge buckle mechanism comprises an end fixing member and a transfer fixing member, wherein:

[0025] The end fixing member is configured to allow the positioning antenna to pass through;

[0026] The relay fixture is configured to allow the positioning antenna to pass through and exit.

[0027] This utility model has at least the following beneficial effects:

[0028] 1. The automotive wireless charging receiver module includes a charging coil assembly and a positioning antenna. By using the positioning antenna instead of the PCB board, the overall thickness of the automotive wireless charging receiver module is greatly reduced, and it does not cause large-area obstruction to the charging coil assembly, which helps the heat dissipation of the charging coil assembly.

[0029] 2. The positioning antennas are cross-mounted on the charging coil assembly to achieve a wider positioning range.

[0030] 3. By setting an insulating film on the positioning antenna, the positioning antenna can be prevented from being broken down by the large current in the charging coil assembly, thus effectively protecting the positioning antenna.

[0031] 4. The snap-fit ​​assembly can effectively fix the positioning antenna to the charging coil assembly, making the installation of the positioning antenna more convenient and helping the positioning antenna to stably perform its positioning function. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0033] Figure 1 This is a first-view structural schematic diagram of the automotive wireless charging receiver module in an embodiment of this utility model.

[0034] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0035] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0036] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0037] Figure 5 This is a partial schematic diagram of the cross-section of the car wireless charging receiver module in an embodiment of this utility model;

[0038] Figure 6 It is a structure schematic view of the automobile center buckle mechanism in the embodiment of the utility model.

[0039] Figure 7 It is a structure schematic view of the second visual angle of the automobile wireless charging receiving end module in the embodiment of the utility model.

[0040] In the figure,

[0041] 100, charging coil assembly; 110, partition; 120, coil body;

[0042] 210, first antenna; 211, first upper section; 212, first lower section; 220, second antenna; 221, second upper section; 222, second lower section;

[0043] 300, insulating film;

[0044] 400, center buckle mechanism; 410, clamping base; 411, clamping seat; 412, clamping cylinder; 413, first wire groove; 414, second wire groove; 420, clamping cover; 421, clamping body; 422, pressure connection part; 423, elastic arm; 424, clamping protrusion;

[0045] 500, edge buckle mechanism;

[0046] 510, end fixing part; 511, end fixing groove; 512, wire passing channel;

[0047] 520, transfer fixing part; 521, transfer fixing groove; 522, wire passing groove. DETAILED DESCRIPTION

[0048] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described accompanying drawings.

[0049] In this application, the terms "comprise", "contain", "have" or any other variant thereof are intended to cover non-exclusive inclusions, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0050] In the present application, the term "and / or", is a description of an associated relationship with associated objects, which means that there can be three kinds of relationships. For example, A and / or B, can represent: the existence of A alone, the existence of A and B together, and the existence of B alone. In addition, the character " / " in the present application generally indicates that the front and rear associated objects are in a "and / or" relationship.

[0051] In the present application, the terms "connected", "combined", "coupled", "mounted" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, for example, direct connection refers to the connection of two parts or components without the need for an intermediate part, while indirect connection refers to the connection of two parts or components with at least one intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0052] In the present application, those of ordinary skill in the art will understand that the relative terms used in connection with quantities or conditions (for example, "about", "approximately", "substantially" and the like) include the values described and have the meaning indicated by the context. For example, the relative terms at least include the degree of error related to the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. related to a specific value. Such terms should also be considered to disclose the range defined by the absolute values of the two endpoints. The relative term can refer to a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value. The numerical value without the relative term should also be disclosed as a specific value with a tolerance. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to a certain number of degrees (for example, 1 degree, 5 degrees, 10 degrees or more) added or subtracted from the indicated angle.

[0053] In the present application, those of ordinary skill in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0054] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as a limitation on the embodiments of the present application. In addition, it is also necessary to understand in the context that when referring to one element connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, left below, right below, front below and back below, etc.

[0055] As shown in Figures 1 to 7 The present embodiment provides a car wireless charging receiving end module, which comprises a charging coil assembly 100, a positioning antenna and an insulating film 300. The charging coil assembly 100 is used to cooperate with the transmitting coil to charge the car battery; the positioning antenna comprises a first antenna 210 and a second antenna 220, and the first antenna 210 and the second antenna 220 are arranged in the charging coil assembly 100 in a cross manner; and the insulating film 300 is arranged on the positioning antenna. In the above arrangement, the positioning antenna is used instead of the PCB board, which greatly reduces the overall thickness of the car wireless charging receiving end module, and does not cause large-area shielding to the charging coil assembly 100, which is helpful to the heat dissipation of the charging coil assembly 100. In addition, the positioning antenna is arranged in the charging coil assembly 100 in a cross manner, so that the positioning has a larger effective range. Finally, by arranging the insulating film 300 on the positioning antenna, the positioning antenna can be prevented from being broken down by the large current in the charging coil assembly 100, and the positioning antenna is effectively protected.

[0056] Regarding the structure of the charging coil assembly 100, in some embodiments, the charging coil assembly 100 comprises a partition plate 110 and a coil body 120, and the coil body 120 is arranged in a spiral manner on one side of the partition plate 110, wherein the partition plate 110 plays a supporting role to ensure that the shape of the coil body 120 remains unchanged. The intersection of the first antenna 210 and the second antenna 220 is located on the winding axis of the coil body 120, so that the intersection of the first antenna 210 and the second antenna 220 is the center position of the coil body 120, that is, the signal generated at the intersection of the first antenna 210 and the second antenna 220 can be used as a reference for the center point of the coil body 120, which is convenient for positioning to the center position of the coil body 120.

[0057] At least one of the first antenna 210 and the second antenna 220 is a bent structure, which comprises a first segment and a second segment, and the first segment and the second segment are arranged on both sides of the charging coil assembly 100, so as to reduce the mutual interference between the first segment and the second segment.

[0058] Specifically, the bending structure has a first section on one side of the partition 110 where the coil body 120 is arranged, and a second section on the other side. The insulating film 300 is arranged on at least one of the first section and the second section. Further, the first section is on the side of the coil body 120 away from the partition 110. As to the arrangement of the insulating film 300, multiple embodiments can be provided. For example, the insulating film 300 is arranged on the first section. For another example, the insulating film 300 is arranged on the second section. For yet another example, the insulating film 300 is arranged on both the first section and the second section.

[0059] To achieve the insulation effect and reduce the amount of the insulating film 300 as much as possible, in some embodiments, the insulating film 300 is arranged between the first section and the coil body 120, and is arranged at least on the portion where the first section and the coil body 120 overlap. In other words, along the axis direction of the coil body 120, the area of the insulating film 300 is smaller than that of the coil body 120, and is larger than that of the overlapping portion of the positioning antenna and the coil body 120, and the contour of the insulating film 300 is outside the overlapping portion of the positioning antenna and the coil body 120. It can be understood that the width of the insulating film 300 arranged on the first section is greater than that of the first section. The width of the insulating film 300 arranged on the second section is greater than that of the second section.

[0060] Specifically, the first antenna 210 is bent to form a first upper section 211 and a first lower section 212, and the second antenna 220 is bent to form a second upper section 221 and a second lower section 222. The first section includes the first upper section 211 and the second upper section 221, and the second section includes the first lower section 212 and the second lower section 222. The first upper section 211 is on the side of the coil body 120 away from the partition 110, and the first lower section 212 is on the side of the partition 110 away from the coil body 120. The insulating film 300 is arranged between the first upper section 211 and the coil body 120 to prevent current from breaking through the first upper section 211. The second upper section 221 is on the side of the coil body 120 away from the partition 110, and the second lower section 222 is on the side of the partition 110 away from the coil body 120. The insulating film 300 is arranged between the second upper section 221 and the coil body 120 to prevent current from breaking through the second upper section 221.

[0061] Further, the first upper section 211 has the insulating film 300 arranged on the side away from the coil body 120. The first lower section 212 has the insulating film 300 arranged on the side away from the partition 110. This arrangement makes each orientation of the first antenna 210 be shielded by the insulating film 300, which helps to prevent current in other circuits outside the coil body 120 from breaking through the first antenna 210. Similarly, the second upper section 221 has the insulating film 300 arranged on the side away from the coil body 120. The second lower section 222 has the insulating film 300 arranged on the side away from the partition 110.

[0062] In some embodiments, the first upper section 211 and the first lower section 212 are arranged in parallel. The second upper section 221 and the second lower section 222 are arranged in parallel. The included angle between the first antenna 210 and the second antenna 220 is 90°. In some embodiments, the insulating film 300 is a PI film (Polyimide Film, PIF).

[0063] The embodiment also provides a buckle assembly for mounting the positioning antenna in the automobile wireless charging receiving end module in any of the above embodiments to the charging coil assembly 100. The buckle assembly includes a center buckle mechanism 400 and an edge buckle mechanism 500. In a first implementation of the embodiment, the center buckle mechanism 400 is capable of being mounted to the charging coil assembly 100 and is used to fix the positioning antenna. In a second implementation of the embodiment, the edge buckle mechanism 500 is capable of being mounted to the edge position of the charging coil assembly 100 and is used to fix the positioning antenna to the charging coil assembly 100. In a third implementation of the embodiment, the center buckle mechanism 400 is capable of being mounted to the charging coil assembly 100 and is used to fix the positioning antenna; the edge buckle mechanism 500 is capable of being mounted to the edge position of the charging coil assembly 100 and is used to fix the positioning antenna to the charging coil assembly 100, thereby achieving segmented fixation of the positioning antenna and ensuring that the position of the positioning antenna in the charging coil assembly 100 is unchanged.

[0064] Regarding the structure of the center buckle mechanism 400, in some embodiments, the center buckle mechanism 400 includes a clamping base 410 and a clamping cover 420. The clamping base 410 has intersecting first and second wire grooves 413 and 414, the first wire groove 413 is for the first antenna 210 to pass through, and the second wire groove 414 is for the second antenna 220 to pass through. The clamping cover 420 is capable of being fixed to the clamping base 410 and is configured to cooperate with the clamping base 410 to fasten the positioning antenna to the charging coil assembly 100. The clamping cover 420 is arranged on the clamping base 410 to block the openings of the first and second wire grooves 413 and 414, preventing the first antenna 210 or the second antenna 220 from falling off.

[0065] The clamping base 410 includes a clamping seat 411 and a clamping cylinder 412. The first and second wire grooves 413 and 414 both pass through the side wall of the clamping cylinder 412. The partition plate 110 is provided with a clamping channel, the diameter of the clamping cylinder 412 is slightly larger than the diameter of the clamping channel, and the outer diameter of the clamping seat 411 is larger than the diameter of the clamping channel. The clamping cover 420 is inserted and interference-fitted in the clamping cylinder 412. The clamping seat 411 and the partition plate 110 can also be fixed by bonding, screwing, or the like.

[0066] Regarding the plugging of the first wire slot 413 and the second wire slot 414, in some embodiments, the clamping cover 420 comprises a clamping body 421 and four crimping portions 422 protruding from the periphery of the clamping body 421, the clamping body 421 is inserted into the clamping cylinder 412, and the crimping portions 422 are inserted into the first wire slot 413 and / or the second wire slot 414. The arrangement of the crimping portions 422 can play a crimping role on the first antenna 210 and the second antenna 220.

[0067] When installed, the first antenna 210 comprises a first upper segment 211 and a first lower segment 212, and the second antenna 220 comprises a second upper segment 221 and a second lower segment 222. The first upper segment 211 and the second upper segment 221 are located on one side of the partition 110, i.e. the first upper segment 211 and the second upper segment 221 are sandwiched between the partition 110 and the clamping cover 420. The first lower segment 212 and the second lower segment 222 are located on the other side of the partition 110, i.e. the first lower segment 212 and the second lower segment 222 are sandwiched between the partition 110 and the clamping seat 411.

[0068] In order to prevent the clamping base 410 from separating from the clamping cover 420, one end of the clamping body 421 extends in the direction of its own axis and has a spring arm 423, and the end of the spring arm 423 away from the clamping body 421 protrudes outwardly and has a clamping protrusion 424. The spring arm 423 is inserted into the clamping cylinder 412, and the clamping protrusion 424 abuts the side of the clamping seat 411 away from the clamping cylinder 412. The clamping body 421 is circumferentially spaced apart by at least two spring arms 423, and each spring arm 423 is provided with a clamping protrusion 424.

[0069] Regarding the structure of the edge clamping mechanism 500, in some embodiments, the edge clamping mechanism 500 comprises an end fixing member 510 and a transfer fixing member 520, wherein the end fixing member 510 is configured to allow the positioning antenna to pass out; and the transfer fixing member 520 is configured to allow the positioning antenna to pass in and out.

[0070] Specifically, the end fixing member 510 is fixed to the edge of the charging coil assembly 100, and is used to fix the first upper segment 211 and the first lower segment 212 near the edge of the charging coil assembly 100, and is also used to fix the second upper segment 221 and the second lower segment 222 near the edge of the charging coil assembly 100. The transfer fixing member 520 is fixed to the edge of the charging coil assembly 100, and is used to fix the bending portions of the first upper segment 211 and the first lower segment 212, and is also used to fix the bending portions of the second upper segment 221 and the second lower segment 222.

[0071] Regarding the structure of the end fixing member 510, in some embodiments, the end fixing member 510 comprises an end fixing slot 511 and two wire passing channels 512, a fastening screw passes through the end fixing slot 511 and is screwed with the partition plate 110, and the two ends of the first antenna 210 are respectively threaded in the two wire passing channels 512 of one of the end fixing members 510. The two ends of the second antenna 220 are respectively threaded in the two wire passing channels 512 of the other end fixing member 510. The wire passing channels 512 are arranged so that the two ends of the first antenna 210 are kept apart, and the two ends of the second antenna 220 are kept apart.

[0072] Regarding the transfer fixing member 520, the transfer fixing member 520 comprises a transfer fixing slot 521 and a wire passing slot 522, a fastening screw passes through the transfer fixing slot 521 and is screwed with the partition plate 110, and the middle part of the first antenna 210 passes around the partition plate 110 in the wire passing slot 522 of one of the transfer fixing members 520. The middle part of the second antenna 220 passes around the partition plate 110 in the wire passing slot 522 of the other transfer fixing member 520. The wire passing slot 522 is arranged to limit the dislocation of the first antenna 210 and the second antenna 220 relative to the partition plate 110.

[0073] In use, when the partition plate 110 is substantially square, the partition plate 110 has two mutually parallel sides, which are defined as a first side and a second side, wherein the first side has a first corner and a second corner of the partition plate 110, the second side has a third corner and a fourth corner of the partition plate 110, and the first corner, the second corner, the third corner and the fourth corner are sequentially arranged around the partition plate 110; two end fixing members 510 are respectively located at the first corner and the second corner of the partition plate 110, and two transfer fixing members 520 are respectively located at the third corner and the fourth corner of the partition plate 110, wherein the first antenna 210 passes through the first corner and the third corner, and the second antenna 220 passes through the second corner and the fourth corner.

[0074] Of course, it should be noted that in other embodiments, the buckle assembly can also be used to clamp other fixed objects, and is not limited to fixing the positioning antenna in the present embodiment.

[0075] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wireless charging receiver module for automobiles, characterized in that, include: Charging coil assembly (100); The positioning antenna includes a first antenna (210) and a second antenna (220), which are arranged crosswise on the charging coil assembly (100); An insulating film (300) is disposed on the positioning antenna.

2. The automotive wireless charging receiver module according to claim 1, characterized in that, The charging coil assembly (100) includes a partition (110) and a coil body (120), the coil body (120) being spirally arranged on one side of the partition (110).

3. The automotive wireless charging receiver module according to claim 2, characterized in that, The intersection of the first antenna (210) and the second antenna (220) is located on the winding axis of the coil body (120).

4. The automotive wireless charging receiver module according to claim 3, characterized in that, At least one of the first antenna (210) and the second antenna (220) is a bent structure, the bent structure including a first section and a second section, the first section and the second section being disposed on both sides of the charging coil assembly (100).

5. The automotive wireless charging receiver module according to claim 4, characterized in that, In the bending structure, the first segment is located on one side of the partition (110) where the coil body (120) is set, and the second segment is located on the other side. The insulating film (300) is provided on at least one of the first segment and the second segment.

6. The automotive wireless charging receiver module according to claim 5, characterized in that, The insulating film (300) is located between the first segment and the coil body (120), and is disposed at least at the portion where the first segment overlaps with the coil body (120).

7. The automotive wireless charging receiver module according to claim 4, characterized in that, The first segment and the second segment are parallel.

8. The automotive wireless charging receiver module according to claim 1, characterized in that, The insulating film (300) is a PI film.

9. A snap-fit ​​assembly for mounting the positioning antenna of the automotive wireless charging receiver module according to any one of claims 1-8 to the charging coil assembly (100), characterized in that, include: A central locking mechanism (400) is mounted on the charging coil assembly (100) and is used to secure the positioning antenna; and / or, An edge locking mechanism (500) is provided, which can be installed at the edge of the charging coil assembly (100) and is used to fix the positioning antenna to the charging coil assembly (100).

10. The snap-fit ​​assembly according to claim 9, characterized in that, The central snap-fit ​​mechanism (400) includes a snap-fit ​​base (410) and a snap-fit ​​cover (420), wherein: The snap-fit ​​base (410) has intersecting first wire groove (413) and second wire groove (414), into which the first antenna (210) and the second antenna (220) respectively pass; The snap-on cover (420) can be fixed to the snap-on base (410), and the snap-on cover (420) is configured to cooperate with the snap-on base (410) to secure the positioning antenna to the charging coil assembly (100).

11. The snap-fit ​​assembly according to claim 9, characterized in that, The edge locking mechanism (500) includes an end fixing member (510) and a transfer fixing member (520), wherein: The end fixing member (510) is configured to allow the positioning antenna to pass through; The relay fixture (520) is configured to allow the positioning antenna to pass through and exit.

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