On-vehicle charger inductor and vehicle having the same

Abstract

The present invention discloses an inductor for a vehicle-mounted charger and a vehicle having the same. The inductor for the vehicle-mounted charger includes: an end cap; a magnetic core, the magnetic core being mounted on the end cap; a coil, the coil being wound around the magnetic core and having leads; a wire nose, the wire nose being mounted on the end cap and connected to the leads, the wire nose having a connection hole; and a nut, the nut being mounted on the end cap, the nut having a threaded hole corresponding to the position of the connection hole. The connection of the inductor for the vehicle-mounted charger according to the embodiment of the present invention to a circuit board has the advantages of being safe and reliable, having a stable connection, being easy to disassemble and assemble, and being convenient for maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and more particularly to an inductor for a vehicle charger and a vehicle having the same. Background Art

[0002] In related art, a vehicle charger is usually provided with an inductor and a printed circuit board (PCB). The inductor is connected to the PCB by welding the coil pins to the PCB. However, when connected in this way, on the one hand, since the coil pins are directly welded to the PCB, during wave soldering, heat will be transferred to the coil during the soldering process, causing damage to the coil insulation; on the other hand, the pins of the coil are relatively large, and when wave soldering or selective soldering is used for soldering, problems such as poor soldering, false soldering, etc. may occur. In addition, since the inductor in the vehicle charger is usually used in a potted form, it is extremely difficult to disassemble the entire vehicle charger after soldering, making it difficult to maintain and repair. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the present invention is to provide an inductor for a vehicle charger, which has the advantages of safe and reliable connection, stable connection, easy disassembly and assembly, and convenient maintenance and repair with the PCB.

[0004] The present invention also provides a vehicle having the above inductor for a vehicle charger.

[0005] To achieve the above object, according to a first aspect embodiment of the present invention, there is provided an inductor for a vehicle charger, the inductor for a vehicle charger comprising: an end cap; a magnetic core, the magnetic core being mounted on the end cap; a coil, the coil being wound around the magnetic core and having pins; a wire nose, the wire nose being mounted on the end cap and connected to the pins, the wire nose having a connection hole; and a nut, the nut being mounted on the end cap, the nut having a threaded hole corresponding to the position of the connection hole.

[0006] The connection between the inductor for a vehicle charger according to the embodiment of the present invention and the PCB has the advantages of safe and reliable connection, stable connection, easy disassembly and assembly, and convenient maintenance and repair.

[0007] According to some specific embodiments of the present invention, the coil is a flat coil and is wound vertically around the magnetic core.

[0008] According to some specific embodiments of the present invention, the wire nose is movably mounted on the end cap so that the distance between the connection hole and the end cap is adjustable.

[0009] According to some specific embodiments of the present invention, the wire nose includes: a plate portion, the connection hole is formed in the plate portion, and the nut is disposed between the plate portion and the end cover; a bending portion, one end of the bending portion is connected to the plate portion and the other end extends in the direction of the end cover, and the bending portion is movably mounted on the end cover; a clamping portion, the clamping portion is connected to the bending portion or the plate portion and clamps the pin.

[0010] According to some specific embodiments of the present invention, an assembly groove is provided on the surface of the end cover facing away from the magnetic core, and the bending portion is movably fitted in the assembly groove.

[0011] According to some specific embodiments of the present invention, the end cover is provided with a notch penetrating in the thickness direction thereof, the notch penetrates the side surface of the end cover, the clamping portion is fitted in the notch, and the pin passes through the notch and is clamped by the clamping portion.

[0012] According to some specific embodiments of the present invention, an anti-rotation groove is provided on the surface of the end cover facing away from the magnetic core, the nut is disposed in the anti-rotation groove, and the distance between the plate portion and the bottom wall of the anti-rotation groove is greater than the axial length of the nut.

[0013] According to some specific embodiments of the present invention, the on-vehicle charger inductor further includes: at least one bobbin, there are a plurality of magnetic cores, and the plurality of magnetic cores are fixed by the bobbin.

[0014] According to some specific embodiments of the present invention, each magnetic core includes: a plurality of column portions, there are a plurality of coils respectively wound around the plurality of column portions, and the wire nose and the nut are respectively a plurality corresponding to the number of column portions; a first end portion and a second end portion, the first end portion is connected to one end of the plurality of column portions, and the second end portion is connected to the other end of the plurality of column portions.

[0015] According to an embodiment of the second aspect of the present invention, a vehicle is provided, and the vehicle includes the on-vehicle charger inductor according to the embodiment of the first aspect of the present invention.

[0016] The vehicle according to the embodiment of the second aspect of the present invention, by means of the on-vehicle charger inductor according to the embodiment of the first aspect of the present invention, has the advantages of safety and reliability, stable connection, easy disassembly and assembly, and convenient maintenance.

[0017] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 It is a schematic structural diagram of an inductor of a vehicle-mounted charger according to an embodiment of the present invention.

[0020] Figure 2 It is an exploded view of an inductor of a vehicle-mounted charger according to an embodiment of the present invention.

[0021] Figure 3 It is an assembly schematic diagram of an end cover, a wire nose and a nut of an inductor of a vehicle-mounted charger according to an embodiment of the present invention.

[0022] Reference numerals:

[0023] Vehicle-mounted charger inductor 1,

[0024] End cover 100, assembly groove 110, notch 120, anti-rotation groove 130,

[0025] Magnetic core 200, column part 210, first end part 220, second end part 230,

[0026] Coil 300,

[0027] Wire nose 400, connection hole 410, plate part 420, bending part 430, clamping part 440,

[0028] Nut 500, threaded hole 510,

[0029] Skeleton 600. Detailed implementation manners

[0030] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0032] In the description of the present invention, "a plurality of" means two or more, and "several" means one or more.

[0033] The on-vehicle charger inductor 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0034] As Figures 1 - 3 shown, the on-vehicle charger inductor 1 according to an embodiment of the present invention includes an end cap 100, a magnetic core 200, a coil 300, a wire nose 400, and a nut 500.

[0035] The magnetic core 200 is installed on the end cap 100. For example, the magnetic core 200 is bonded to the end cap 100. The coil 300 is wound around the magnetic core 200 and has pins. The wire nose 400 is installed on the end cap 100 and is connected to the pins. The wire nose 400 has a connection hole 410. The nut 500 is installed on the end cap 100, and the nut 500 has a threaded hole 510 corresponding to the position of the connection hole 410.

[0036] Specifically, a circuit board connected to the on-vehicle charger inductor 1 can be disposed on a side of the wire nose 400 facing away from the end cap 100. The circuit board can be provided with a threaded fastener (such as a bolt or a screw). The threaded fastener can be threadedly connected between the connection hole 410 and the threaded hole 510, so that an electrical connection and a mechanical connection can be achieved between the circuit board and the on-vehicle charger inductor 1.

[0037] For the on-vehicle charger inductor 1 according to an embodiment of the present invention, the magnetic core 200 is installed on the end cap 100, the coil 300 is wound around the magnetic core 200 and has the pins, and the wire nose 400 is installed on the end cap 100 and is connected to the pins. In this way, the wire nose 400 can be electrically connected to the coil 300, and the circuit board is electrically connected to the wire nose 400, thereby realizing the electrical connection between the circuit board and the coil 300.

[0038] In addition, the wire nose 400 has a connection hole 410, the nut 500 is installed on the end cap 100, and the nut 500 has a threaded hole 510 corresponding to the position of the connection hole 410. The circuit board is threadedly connected to the threaded hole 510 of the nut 500 through a threaded fastener. The connection process is safe and reliable, the probability of damage to the on-vehicle charger inductor 1 is low, and the connection between the circuit board and the on-vehicle charger inductor 1 is stable. There is no need for welding, it is easy to disassemble and assemble, and the difficulty of later maintenance and repair is reduced.

[0039] In this way, the connection between the on-vehicle charger inductor 1 according to an embodiment of the present invention and the circuit board has the advantages of being safe and reliable, having a stable connection, being easy to disassemble and assemble, and being convenient for maintenance.

[0040] According to some specific embodiments of the present invention, such as Figure 2As shown, the coil 300 is a flat coil and is wound vertically around the magnetic core 200, that is, the width direction of the coil 300 is arranged along the radial direction of the magnetic core 200. In the related art, the inductor of the vehicle-mounted charger usually uses a toroidal magnetic core to wind a circular enameled wire, and the processing technology is complex. Most of them are wound manually, and it is extremely difficult to realize automated production. For the inductor 1 of the vehicle-mounted charger of the present invention, since the coil 300 is set as a flat coil and the coil 300 is wound vertically around the magnetic core 200, the production process is simple, which is convenient for automated production and improves production efficiency.

[0041] According to some specific embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the wire nose 400 is movably mounted on the end cover 100 so that the distance between the connection hole 410 and the end cover 100 is adjustable. Since the circuit board is located on the side of the wire nose 400 facing away from the end cover 100, by moving the wire nose 400 to adjust the distance between the connection hole 410 and the end cover 100, the connection flatness between the inductor 1 of the vehicle-mounted charger and the circuit board can be improved.

[0042] According to some specific embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the wire nose 400 includes a plate portion 420, a bending portion 430 and a clamping portion 440. The connection hole 410 is formed in the plate portion 420, and the nut 500 is provided between the plate portion 420 and the end cover 100. One end of the bending portion 430 is connected to the plate portion 420 and the other end extends towards the end cover 100. The bending portion 430 is movably mounted on the end cover 100, and the clamping portion 440 is connected to the bending portion 430 or the plate portion 420 and clamps the pin.

[0043] It can be understood that when the circuit board is in threaded cooperation with the nut 500 through a threaded fastener, the plate portion 420 is located between the circuit board and the nut 500, so that the positions of the wire nose 400 and the circuit board and the position of the nut 500 are fixed. Then, through the cooperation of the bending portion 430 and the end cover 100, the position of the wire nose 400 and the end cover 100 is fixed. Thereby, the stability of the overall position of the circuit board and the inductor 1 of the vehicle-mounted charger is increased. The clamping portion 440 is set in a U shape, and one side of the U shape is connected to the bending portion 430 or the plate portion 420. The clamping portion 440 can clamp the pin from the opposite sides in the radial direction of the pin, increasing the connection stability between the wire nose 400 and the pin.

[0044] Understandably, the clamping portion 440 can be connected to the bending portion 430 or the plate portion 420. In some embodiments, the inductor of the vehicle-mounted charger 1 is provided with a plurality of wire noses 400. According to actual requirements, a part of the plurality of wire noses 400 can adopt a structure in which the clamping portion 440 is connected to the bending portion 430, and another part of the plurality of wire noses 400 can adopt a structure in which the clamping portion 440 is connected to the plate portion 420.

[0045] According to some specific embodiments of the present invention, such as Figure 2 and Figure 3 As shown, an assembly groove 110 is provided on the surface of the end cap 100 facing away from the magnetic core 200, and the bending portion 430 is movably fitted in the assembly groove 110. Among them, an interference fit can be provided between the bending portion 430 and the assembly groove 110, and the wire nose 400 can be fixed to the end cap 100 through the friction force between the bending portion 430 and the assembly groove 110. When the external force received by the wire nose 400 is greater than the friction force between the bending portion 430 and the assembly groove 110, the wire nose 400 can move relative to the end cap 100. By providing the assembly groove 110, on the one hand, it can be used to accommodate the bending portion 430, reduce the overall volume of the inductor of the vehicle-mounted charger 1, and is beneficial to the miniaturization of the product; on the other hand, the relative position between the end cap 100 and the wire nose 400 can be fixed through the cooperation between the bending portion 430 and the assembly groove 110, improving the overall structural strength of the inductor of the vehicle-mounted charger 1.

[0046] According to some specific embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the end cap 100 is provided with a notch 120 penetrating in its thickness direction, the notch 120 penetrates the side surface of the end cap 100, the clamping portion 440 is fitted in the notch 120, and the pin passes through the notch 120 and is clamped by the clamping portion 440. Among them, the U-shaped opening direction of the clamping portion 440 is the same as the opening direction of the notch 120 on the side surface. By providing the notch 120, it can be used to accommodate the clamping portion 440 to reduce the volume of the inductor of the vehicle-mounted charger 1, which is beneficial to the miniaturization of the product. And the notch 120 penetrates the side surface of the end cap 100, which is convenient to confirm the position of the notch 120 during production and also convenient to assemble the pin into the notch 120, reducing the difficulty of passing the pin through the notch 120 and improving the production efficiency.

[0047] According to some specific embodiments of the present invention, such as Figure 2 and Figure 3As shown, an anti-rotation groove 130 is provided on the surface of the end cap 100 facing away from the magnetic core 200. The nut 500 is disposed in the anti-rotation groove 130. It can be understood that the nut 500 is non-circular, and the shape of the anti-rotation groove 130 is adapted to the shape of the nut 500. For example, both are hexagonal. The relative position of the nut 500 in its circumferential direction is fixed with respect to the anti-rotation groove 130. Therefore, when the threaded fasteners (such as bolts and screws) of the circuit board pass through the connection holes 410 and cooperate with the nut 500, the nut 500 is prevented from rotating due to the circumferential force applied thereto, increasing the convenience of assembly. The distance between the plate portion 420 and the bottom wall of the anti-rotation groove 130 is greater than the axial length of the nut 500, so that the nut 500 is adjustable in its axial position. And the shortest distance between the plate portion 420 and the surface of the end cap 100 facing the plate portion 420 can be less than the axial length of the nut 500 to prevent the nut 500 from falling out of the anti-rotation groove 130.

[0048] According to some specific embodiments of the present invention, as Figure 2 shown, the in-vehicle charger inductor 1 further includes at least one bobbin 600. There are multiple magnetic cores 200, and the multiple magnetic cores 200 are fixed by the bobbin 600. Among them, the bobbin 600 can be provided at the end of the magnetic core 200, so that the setting of the bobbin 600 does not occupy the axial space of the magnetic core 200, ensuring the working performance of the magnetic core 200. And, the multiple magnetic cores 200 are fixed into an integral body by the bobbin 600, further reducing the assembly difficulty and improving the production efficiency.

[0049] Of course, those skilled in the art can understand that the bobbin 600 can also fix the structure of a single magnetic core 200.

[0050] According to some specific embodiments of the present invention, as Figure 2 shown, each magnetic core 200 includes a plurality of column portions 210, a first end portion 220, and a second end portion 230. There are multiple coils 300 respectively wound around the plurality of column portions 210. The wire noses 400 and the nuts 500 are respectively multiple and corresponding to the number of column portions 210. The first end portion 220 is connected to one end of the plurality of column portions 210, and the second end portion 230 is connected to the other end of the plurality of column portions 210.

[0051] For example, each magnetic core 200 is integrally in the shape of one or more juxtaposed square frames with a mouth shape. There may be two frameworks 600. One framework 600 is disposed on one side of the first end portion 220 facing away from the column portion 210, and the other framework 600 is disposed on one side of the second end portion 230 facing away from the column portion 210. Through the arrangement of the first end portion 220 and the second end portion 230, it can provide a positioning function for the winding of the coil 300, prevent the surface area of the coil 300 wound around the column portion 210 from being too large or too small, and ensure the quality of the coil 300 wound around the column portion 210. In addition, the arrangement of the first end portion 220 and the second end portion 230 facilitates the assembly of the magnetic core 200, improves the space utilization rate of the inductor 1 of the vehicle charger while ensuring the inductance performance of the magnetic core 200.

[0052] The vehicle according to an embodiment of the present invention will be described below with reference to the accompanying drawings. The vehicle includes the inductor 1 of the vehicle charger according to the present invention.

[0053] The vehicle according to an embodiment of the present invention has the advantages of being safe and reliable, having stable connection, being easy to disassemble and assemble, and being convenient for maintenance through the inductor 1 of the vehicle charger according to an embodiment of the present invention.

[0054] The other configurations and operations of the inductor 1 of the vehicle charger according to an embodiment of the present invention and the vehicle having the same are known to those of ordinary skill in the art and will not be described in detail here.

[0055] In the description of this specification, the description with reference to terms such as "specific embodiment", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An inductor for a vehicle charger, characterized in that, Comprising: End cover; Coil, the coil having pins; Nut, the nut being mounted on the end cover; Wire nose, the wire nose being mounted on the end cover and connected to the pins, the wire nose having a connection hole; the wire nose is movably mounted on the end cover so that the distance between the connection hole and the end cover is adjustable; the wire nose includes a plate portion and a bent portion, the connection hole is formed in the plate portion, the nut is disposed between the plate portion and the end cover, one end of the bent portion is connected to the plate portion and the other end extends toward the end cover, and the bent portion is movably mounted on the end cover; The nut has a threaded hole corresponding to the position of the connection hole; An anti-rotation groove is provided on the surface of the end cover facing away from the coil, the nut is disposed in the anti-rotation groove, and the distance between the plate portion and the bottom wall of the anti-rotation groove is greater than the axial length of the nut.

2. The inductor of the in-vehicle charger according to claim 1, characterized in that, The nut is adjustable in its axial position.

3. The inductor for vehicle charger according to claim 1, characterized in that, Further comprising a magnetic core, the magnetic core being mounted on the end cover, and the coil being wound around the magnetic core.

4. The inductor for vehicle charger according to claim 3, characterized in that, An assembly groove is provided on the surface of the end cover facing away from the magnetic core, and the bent portion is movably engaged with the assembly groove.

5. The inductor of the in-vehicle charger according to claim 4, wherein The wire nose further includes a clamping portion, The clamping portion is connected to the bent portion or the plate portion and clamps the pins, the end cover is provided with a notch penetrating in its thickness direction, the notch penetrates the side surface of the end cover, the clamping portion is engaged with the notch, and the pins pass through the notch and are clamped by the clamping portion.

6. The inductor for vehicle charger according to claim 1, wherein The wire nose further includes: A clamping portion, the clamping portion being connected to the bent portion or the plate portion and clamping the pins.

7. The inductor for in-vehicle charger according to claim 1, wherein The shape of the anti-rotation groove is adapted to the shape of the nut, and both the anti-rotation groove and the nut are hexagonal.

8. The inductor of the in-vehicle charger according to claim 6, wherein, The distance between the plate portion and the bottom wall of the anti-rotation groove is greater than the axial length of the nut.

9. The inductor of the in-vehicle charger according to any one of claims 3-5, characterized in that, Further comprising: At least one skeleton, there are multiple magnetic cores, and the multiple magnetic cores are fixed by the skeleton.

10. The inductor of the in-vehicle charger according to any one of claims 3-5, characterized in that, Each of the magnetic cores includes: Multiple column portions, there are multiple coils and they are respectively wound around the multiple column portions, and the wire nose and the nut are respectively multiple corresponding to the number of column portions; A first end portion and a second end portion, the first end portion is connected to one end of the multiple column portions, and the second end portion is connected to the other end of the multiple column portions.

11. A vehicle, characterized in that, Including the inductor for vehicle charger according to any one of claims 1-10, further comprising a circuit board, the circuit board is provided with a threaded fastener, and the threaded fastener is threadedly connected between the connection hole and the threaded hole.

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