Magnetic ring assembly and power supply device

Abstract

The embodiment of the utility model provides a magnetic ring assembly and a power supply device, the magnetic ring assembly comprises a magnetic ring fixing piece and a magnetic ring, the magnetic ring fixing piece comprises a support, a first limiting part and a second limiting part, and the first limiting part and the second limiting part are connected to the two opposite sides of the support in the width direction respectively and are oppositely arranged at intervals; a limiting space is defined by the first limiting part, the second limiting part and the support. The magnetic ring comprises a wire harness through hole, the magnetic ring is installed in the limiting space, in the thickness direction of the support, the first limiting part and the second limiting part limit the magnetic ring to the support, the magnetic ring is fixed to the support, and the wire harness through hole is exposed out of the limiting space. According to the magnetic ring assembly, the problem that the stability of the magnetic ring is insufficient due to the fact that the magnetic ring is fixed simply through structural adhesive can be solved, and the performance of the magnetic ring and surrounding devices is improved.

Description

Technical Field

[0001] The present application relates to the technical field related to magnetic rings, and in particular to a magnetic ring assembly and a power supply device. Background Art

[0002] In the prior art, a magnetic ring is usually added to the power supply product of a vehicle to suppress high-frequency interference signals and handle harmonic interference. The magnetic ring in the power supply of an existing vehicle is directly mounted on the wire and fixed with structural adhesive. Since the vehicle vibrates during driving and the magnetic ring vibrates during use, and the magnetic ring itself is heavy, this method of simply fixing the magnetic ring with structural adhesive makes the magnetic ring unstable, causing the magnetic ring to easily collide with surrounding devices, thereby affecting the performance of the magnetic ring and its surrounding devices. Utility Model Content

[0003] The purpose of the present application is to provide a magnetic ring assembly and a power supply device, which can solve the problem of insufficient stability of the magnetic ring caused by simply using structural adhesive to fix the magnetic ring, and improve the performance of the magnetic ring and its surrounding devices.

[0004] An embodiment of the present application provides a magnetic ring assembly, which includes a magnetic ring fixing part and a magnetic ring. The magnetic ring fixing part includes a bracket, a first limiting part and a second limiting part, wherein the first limiting part and the second limiting part are respectively connected to opposite sides of the bracket in the width direction and are arranged relatively spaced apart, and the first limiting part and the second limiting part form a limiting space with the bracket. The magnetic ring includes a harness through hole, and the magnetic ring is installed in the limiting space. In the thickness direction of the bracket, the first limiting part and the second limiting part limit the magnetic ring to the bracket, and the magnetic ring is fixed to the bracket, and the harness through hole is exposed in the limiting space.

[0005] In one embodiment, the magnetic ring assembly further includes a fastening piece, which passes through the wire harness through hole of the magnetic ring and surrounds the bracket, and the two ends of the fastening piece in the length direction are connected to fix the magnetic ring on the bracket.

[0006] In one embodiment, the first limiting part includes a limiting body, a clamping body and a limiting section, the limiting body is provided with a limiting through hole, the limiting section is convexly provided on the surface of the limiting body and surrounds the limiting through hole, the clamping body is convexly provided at one end of the limiting body and extends away from the limiting body. The limiting body and the second limiting part are opposite to each other in the thickness direction of the bracket and clamp the magnetic ring, the limiting section is inserted into the harness through hole along the thickness direction of the bracket, the limiting through hole is connected with the harness through hole, the limiting section abuts against the hole wall of the harness through hole, the clamping body is clamped on the bracket, and the clamping direction is opposite to the insertion direction of the limiting section.

[0007] In one embodiment, the bracket includes a first side surface and a second side surface opposite to the first side surface and spaced apart, the bracket includes a first section, a second section and a third section, the second section is connected between the first section and the third section, the first section and the third section are opposite to each other and spaced apart along the length direction of the bracket, an opening opposite to the second section is provided between the first section and the third section, and the opening is connected to the limiting space. The first limiting portion includes a first limiting plate, a second limiting plate and a third limiting plate, the first limiting plate is connected to the first section, the second limiting plate is connected to the second section, and the third limiting plate is connected to the third section. The structure of the first limiting part is the same as that of the second limiting part. The second limiting part includes a fourth limiting plate, a fifth limiting plate and a sixth limiting plate. The fourth limiting plate is connected to the first section and is relatively spaced from the first limiting plate. The fifth limiting plate is relatively spaced from the second limiting plate. The sixth limiting plate is relatively spaced from the third limiting plate. The first limiting plate, the second limiting plate, the third limiting plate, the fourth limiting plate, the fifth limiting plate, the sixth limiting plate and the bracket together form the limiting space.

[0008] In one embodiment, the number of the tightening members is three, and the three tightening members respectively surround the first section, the second section and the third section. The tightening member surrounding the first section limits the magnetic ring between the first limit plate, the fourth limit plate and the first section, the tightening member surrounding the second section limits the magnetic ring between the second limit plate, the fifth limit plate and the second section, and the tightening member surrounding the third section limits the magnetic ring between the third limit plate, the sixth limit plate and the third section.

[0009] In one embodiment, a gap between the magnetic ring and the bracket is filled with structural adhesive, and the structural adhesive bonds and fixes the magnetic ring to the magnetic ring fixing member.

[0010] In one embodiment, the bracket includes a first side surface and a second side surface facing away from the first side surface and spaced apart, the bracket includes a first section, a second section and a third section, the second section is connected between the first section and the third section, the first section and the third section are opposite and spaced apart along the length direction of the bracket, there is an opening between the first section and the third section opposite to the second section, and the opening is connected to the limiting space. The second limiting portion includes a fourth limiting plate, a fifth limiting plate and a sixth limiting plate, the fourth limiting plate is connected to the first section, the fifth limiting plate is connected to the second section, and the sixth limiting plate is connected to the third section. The clamping body includes a first buckle and a second buckle, the first buckle and the second buckle are convexly arranged at the end of the clamping body away from the limiting body, the first buckle and the second buckle are respectively located on opposite sides of the length direction of the fifth limiting plate and are clamped to the second section, and the limiting body, the fourth limiting plate, the fifth limiting plate, the sixth limiting plate and the bracket together enclose the limiting space.

[0011] In one embodiment, the limiting body includes a limiting surface and a first surface arranged opposite to each other, the limiting through hole passes through the limiting surface and the first surface, and the first limiting portion may also include a notch, the notch passes through the limiting surface and the first surface, and passes through the two surfaces of the limiting section in the thickness direction, and the notch is connected to the limiting through hole.

[0012] In one embodiment, the bracket further includes a first fixing section and a second fixing section, the first fixing section is connected to the first section, the second fixing section is connected to the third section, and the first fixing section and the second fixing section are located on both sides of the opening.

[0013] An embodiment of the present application provides a power supply device, which is applied to a vehicle. The power supply device includes a housing, a signal control component, and a magnetic ring component. The housing includes a bottom shell. The signal control component includes a signal interface, a circuit board, a signal line, and a signal terminal. The signal interface is connected to the bottom shell, the signal interface is mounted on the bottom shell, and the bracket is fixed to the bottom shell. The circuit board is fixed to the bottom shell, the signal terminal is fixed to the surface of the circuit board and is electrically connected to the circuit board, and the magnetic ring component is located between the signal terminal and the signal interface. One end of the signal line is connected to the signal terminal, the signal line passes through the wiring harness through hole, and the other end of the signal line is connected to the signal interface.

[0014] In one embodiment, the bracket includes a first fixing section and a second fixing section, the first fixing section includes a first connecting hole, the first connecting hole penetrates through two surfaces of the first fixing section in a thickness direction, the second fixing section includes a second connecting hole, the second connecting hole penetrates through two surfaces of the second fixing section in a thickness direction. Two screws pass through the first connecting hole and the second connecting hole respectively to connect to the bottom shell.

[0015] In the related art, the magnetic ring is only fixed in the power supply device by structural adhesive. During the operation of the power supply device and the magnetic ring, the magnetic ring will vibrate, or the power supply device will vibrate, and the magnetic ring is easy to collide with nearby electronic devices, thereby affecting the performance of the magnetic ring. At the same time, the vibration of the magnetic ring will affect the contact performance between the signal line passing through and the signal terminal and the controller, thereby affecting the stability and quality of signal transmission. In the present application, the magnetic ring is installed in the limiting space of the magnetic ring fixing part, and the bracket, the first limiting part and the second limiting part of the magnetic ring fixing part limit and fix the magnetic ring in the thickness direction and the radial direction, and the magnetic ring is completely fixed to the magnetic ring fixing part to avoid the vibration of the magnetic ring during the use of the power supply device, effectively improve the performance of the magnetic ring, and prevent the vibration of the magnetic ring from affecting the contact performance between the signal line and the signal terminal and the controller, thereby improving the stability of signal transmission and the quality of the signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a power supply device provided in an embodiment of the present application;

[0017] Figure 2 for Figure 1 A cross-sectional schematic diagram of the power supply device shown along line AA;

[0018] Figure 3 for Figure 2 A structural schematic diagram of a magnetic ring assembly of a power supply device shown;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure of the magnetic ring assembly shown at another angle;

[0020] Figure 5 for Figure 3 A schematic diagram of an exploded structure of a magnetic ring assembly shown;

[0021] Figure 6 for Figure 5 The structural schematic diagram of the first embodiment of the magnetic ring fixing member of the magnetic ring assembly shown;

[0022] Figure 7 for Figure 6 The structure schematic diagram of the first embodiment of the magnetic ring fixing member shown is at another angle;

[0023] Figure 8 for Figure 1 Another cross-sectional schematic diagram of the power supply device shown along line AA;

[0024] Fig. 9 for Figure 8 Another structural schematic diagram of the magnetic ring assembly of the power supply device shown;

[0025] Fig.10 for Fig. 9 Another structural schematic diagram of the magnetic ring assembly shown at another angle;

[0026] Fig.11 for Fig.10 Another exploded structural schematic diagram of the magnetic ring assembly shown;

[0027] Fig.12 for Fig.11 The structural schematic diagram of the second embodiment of the magnetic ring fixing member shown;

[0028] Fig.13 for Fig.12 The structure schematic diagram of the second embodiment of the magnetic ring fixing member shown is at another angle;

[0029] Fig.14 for Fig.11 A schematic structural diagram of the first limiting portion shown;

[0030] Fig.15 for Fig. 9 The cross-sectional structural diagram of the magnetic ring assembly is shown.

[0031] The nouns corresponding to the reference numerals in the figures are: power supply device 100, box body 10, bottom shell 11, cover plate 12, bottom wall 13, support body 131, side wall 14, accommodating chamber 15, signal control component 20, controller 21, circuit board 22, signal line 23, signal terminal 24, magnetic ring component 30, magnetic ring 40, first surface 41, second surface 42, harness through hole 43, inner ring surface 44, outer ring surface 45, magnetic ring fixing part 50, bracket 51, outer surface 511, inner surface 512, first side surface 513, second side surface 514, first section 515, second section 516, third section 517, first fixing section 51 8. First connecting hole 519, second fixing section 520, second connecting hole 521, first limiting portion 53, first limiting plate 531, second limiting plate 532, third limiting plate 533, second limiting portion 54, fourth limiting plate 541, fifth limiting plate 542, sixth limiting plate 543, limiting body 55, limiting surface 551, first surface 552, snap-fit ​​body 56, snap-fit ​​surface 561, second surface 562, first snap 563, second snap 564, limiting through hole 565, limiting section 57, inner circumferential surface 571, outer circumferential surface 572, notch 58, sub-limiting section 59, limiting space A, tightening piece 60. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] In the embodiments of the present application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. And "multiple" in this application refers to two or more.

[0034] Please refer to Figure 1 and Figure 2 , Figure 1A schematic diagram of the structure of a power supply device provided in an embodiment of the present application, Figure 2 for Figure 1 The power supply device shown is a cross-sectional schematic diagram along line AA. It should be noted that: Figure 2 Only the partial structure of the power supply device including the magnetic ring component and the signal control component is shown.

[0035] The embodiment of the present application provides a power supply device 100, which can be applied to a vehicle. The power supply device 100 supplies power to the vehicle. The power supply device 100 is used to be electrically connected to an external electronic device and receive a signal from the external electronic device or send a signal to the external electronic device. The external electronic device can be an external power source, a load, etc.

[0036] The vehicle refers to a wheeled vehicle driven or towed by a power device for people traveling on the road or for transporting goods and performing special engineering operations. The vehicle includes but is not limited to electric vehicles or electric vehicles (Electric Vehicle, EV), pure electric vehicles (Pure Electric Vehicle / Battery Electric Vehicle, PEV / BEV), hybrid electric vehicles (Hybrid Electric Vehicle, HEV), range extended electric vehicles (Range Extended Electric Vehicle, REEV), plug-in hybrid electric vehicles (Plug-in Hybrid Electric Vehicle, PHEV) or fuel cell electric vehicles (Fuel Cell Electric Vehicle, FCEV) and other new energy vehicles. In some embodiments, the vehicle includes a passenger car, various special operation vehicles with specific functions, such as engineering rescue vehicles, sprinkler trucks, sewage suction trucks, cement mixer trucks, crane trucks, medical vehicles, etc. The power supply device 100 can also be used for electric drive equipment such as robots. This application does not limit this.

[0037] For the convenience of description, the width direction of the power supply device 100 is defined as the X-axis direction, the length direction is the Y-axis direction, and the height direction is the Z-axis direction. Among them, the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other. It should be noted that the directional terms such as "upper", "lower", "top", "bottom", "left", "right", "front" and "back" mentioned in the description of this application are based on the attached manual. Figure 1 The description is made with reference to the orientation of the power supply device 100 shown.

[0038] The power supply device 100 includes a housing 10, a signal control component 20 and a magnetic ring component 30. The housing 10 includes a bottom shell 11 and a cover plate 12. The bottom shell 11 includes a bottom wall 13 and a side wall 14. The bottom wall 13 and the cover plate 12 of the bottom shell 11 are opposite and spaced along the height direction (i.e., the Z-axis direction) of the housing 10. The bottom wall 13 is used to carry and fix a variety of electronic devices connected inside the housing 10. The electronic device can be at least one of a distributor, a radiator, a controller or a converter. The side wall 14 surrounds the edge of the bottom wall 13 and encloses an opening (not shown). The opening is away from the bottom wall 13. The cover plate 12 covers the opening and encloses a receiving chamber 15 together with the bottom shell 11. A plurality of support bodies 131 are convexly provided on the bottom wall 13, and the magnetic ring component 30 and part of the signal control component 20 are both accommodated in the receiving chamber 15. The support body 131 is used to support the magnetic ring component 30. The cover plate 12 is detachably connected to the bottom shell 11. The specific structure of the box body 10 is not limited in this application.

[0039] The signal control component 20 includes a controller 21, which is connected to the side wall 14 of the box 10. A portion of the controller 21 is accommodated in the accommodating cavity 15 of the box 10, and another portion is exposed outside the box 10 to connect to other electronic devices outside the power supply device 100 to achieve signal transmission. The signal described herein can be a power signal or a data signal. The present application does not limit the structure of the controller 21.

[0040] The signal control component 20 also includes a printed circuit board 22 (PCB), a signal line 23 and a signal terminal 24. The circuit board 22 is mounted on the support body 131 of the bottom wall 13. In this embodiment, the circuit board 22 can be fixed to the support body 131 by a plurality of screws. Exemplarily, the number of screws is four, and the four screws are arranged at intervals on the circuit board 22 and penetrate the two surfaces of the circuit board 22 in the thickness direction. In some embodiments, the circuit board 22 can also be fixed to the support body 131 by welding, bonding, etc.

[0041] The signal terminal 24 is fixedly connected to the surface of the circuit board 22 and is electrically connected to the circuit board 22. The circuit board 22 is used to carry the signal terminal 24 and is electrically connected to the signal terminal 24. One end of the signal line 23 is connected to the signal terminal 24, the signal line 23 passes through the magnetic ring assembly 30, and the other end of the signal line 23 is connected to the controller 21, thereby realizing the transmission of signals inside the power supply device 100 and other electronic devices outside the power supply device 100.

[0042] Please refer to Figure 2 , Figure 3 and Figure 4 , Figure 3 for Figure 2 A structural schematic diagram of a magnetic ring assembly of a power supply device shown in FIG. Figure 4 for Figure 3 A schematic structural diagram of the magnetic ring assembly shown at another angle.

[0043] The magnetic ring assembly 30 includes a magnetic ring 40 and a magnetic ring fixing part 50. The magnetic ring 40 is mounted on the magnetic ring fixing part 50 to achieve preliminary limiting fixation of the magnetic ring 40. The magnetic ring fixing part 50 is fixedly connected to the support body 131 of the bottom wall 13 of the box body 10, so that the magnetic ring assembly 30 is fixed to the bottom shell 11, ensuring the stability of the magnetic ring assembly 30 inside the box body 10 of the power supply device 100. Along the X-axis direction, the magnetic ring fixing part 50 is arranged in parallel with the circuit board 22. The magnetic ring assembly 30 is located between the signal terminal 24 and the controller 21, and is respectively opposite to and spaced from the signal terminal 24 and the controller 21. In this embodiment, the magnetic ring fixing part 50 can be fixed to the support body 131 by a plurality of screws. Exemplarily, the number of screws is two. In some embodiments, the magnetic ring fixing part 50 can also be fixed to the support body 131 of the bottom wall 13 by welding, bonding, etc.

[0044] Please refer to Figure 5 , Figure 6 and Figure 7 , Figure 5 for Figure 3 A schematic diagram of the exploded structure of the magnetic ring assembly shown in FIG. Figure 6 for Figure 5 The schematic structural diagram of the first embodiment of the magnetic ring fixing member of the magnetic ring assembly shown in FIG. Figure 7 for Figure 6 The structure diagram of the first embodiment of the magnetic ring fixing member shown is shown at another angle.

[0045] The magnetic ring fixing member 50 includes a bracket 51, a first limiting portion 53 and a second limiting portion 54. The first limiting portion 53 and the second limiting portion 54 are respectively connected to the opposite sides of the bracket 51 in the width direction (i.e., the X-axis direction). The magnetic ring fixing member 50 also includes a limiting space A. The bracket 51, the first limiting portion 53 and the second limiting portion 54 together enclose the limiting space A. The limiting space A is used to assemble the magnetic ring 40. The first limiting portion 53 and the second limiting portion 54 are respectively used to limit the movement of the magnetic ring 40 along the X-axis direction and to stop the magnetic ring 40. When the magnetic ring fixing member 50 is installed to the bottom shell 11, the opening of the limiting space A faces the bottom wall 13 of the bottom shell 11 and is connected to the accommodating cavity 15. In this embodiment, the first limiting portion 53 and the second limiting portion 54 are integrally formed with the bracket 51.

[0046] The bracket 51 includes an outer surface 511 and an inner surface 512. The outer surface 511 and the inner surface 512 of the bracket 51 are arranged opposite to each other in the thickness direction of the bracket 51. The bracket 51 further includes a first side surface 513 and a second side surface 514. The first side surface 513 and the second side surface 514 of the bracket 51 are arranged opposite to each other in the width direction of the bracket 51. The first side surface 513 and the second side surface 514 are connected between the outer surface 511 and the inner surface 512. When the magnetic ring fixing member 50 is installed on the bottom case 11, the first side surface 513 faces away from the controller 21, and the second side surface 514 faces the controller 21.

[0047] In this embodiment, the cross-section of the bracket 51 is generally in the shape of a "冂". The bracket 51 includes a first section 515, a second section 516, and a third section 517. The second section 516 is connected between the first section 515 and the third section 517. The first section 515 and the third section 517 are opposite and spaced apart along the length direction of the bracket 51 (i.e., the Y-axis direction). There is an opening (not labeled in the figure) opposite to the second section 516 between the first section 515 and the third section 517, and the opening communicates with the limiting space A. The second section 516 forms an angle with the first section 515 and the second section 516. In this embodiment, the angle between the second section 516 and the first section 515 and the second section 516 is a right angle. In other embodiments, the cross-section of the bracket 51 may also be generally trapezoidal. The second section 516 of the bracket 51 is connected to the first section 515 and the third section 517 at an angle (the angle is an obtuse angle or an acute angle). The outer surface 511, the inner surface 512, the first side surface 513, and the second side surface 514 are jointly formed by the surfaces of the first section 515, the second section 516, and the third section 517.

[0048] The bracket 51 further includes a first fixing section 518 and a second fixing section 520. The first fixing section 518 and the second fixing section 520 are respectively located on both sides of the opening along the Y-axis direction. The first fixing section 518 and the second fixing section 520 are used to fix the magnetic ring fixing member 50 on the support body 131 of the bottom case 11.

[0049] The first fixing section 518 is connected to one end of the first section 515 away from the second section 516, and the first fixing section 518 forms an angle with the first section 515. The first fixing section 518 extends in a direction away from the bracket 51. The first fixing section 518 includes a first connection hole 519, and the first connection hole 519 penetrates through the two surfaces in the thickness direction of the first fixing section 518. The first connection hole 519 is used for a screw to pass through. In some embodiments, the first fixing section 518 may not include the first connection hole 519.

[0050] In this embodiment, the structure of the second fixing section 520 is the same as that of the first fixing section 518. The second fixing section 520 is connected to the third section 517, and the second fixing section 520 and the third section 517 are at an angle. The second fixing section 520 extends in a direction away from the bracket 51. The second fixing section 520 includes a second connecting hole 521, which runs through both surfaces of the second fixing section 520 in the thickness direction, and the second connecting hole 521 is used for screws to pass through. In some embodiments, the structure of the second fixing section 520 may be different from that of the first fixing section 518. The second fixing section 520 may not include the second connecting hole 521.

[0051] The first limiting portion 53 is convexly disposed on a portion of the first side surface 513 of the bracket 51. In this embodiment, the first limiting portion 53 includes a first limiting plate 531, a second limiting plate 532 and a third limiting plate 533. The first limiting plate 531 is connected to the first section 515 of the bracket 51 and extends in a direction away from the first section 515. Along the Y-axis direction, the first limiting plate 531 extends in the direction of the inner surface 512. The second limiting plate 532 is connected to the second section 516 of the bracket 51 and extends away from the second section 516. The third limiting plate 533 is connected to the third section 517 of the bracket 51, and the third limiting plate 533 extends in the direction of the first limiting plate 531. The first limiting plate 531 and the third limiting plate 533 are opposite and spaced apart along the length direction of the magnetic ring fixing member 50 (i.e., the Y-axis direction). The second limiting plate 532 is located between the first limiting plate 531 and the third limiting plate 533, and is spaced apart from the first limiting plate 531 and the third limiting plate 533. In other embodiments, the first limiting portion 53 including the first limiting plate 531 , the second limiting plate 532 and the third limiting plate 533 may be rod-shaped or ring-shaped.

[0052] In this embodiment, the structure of the second limiting portion 54 is the same as that of the first limiting portion 53. The second limiting portion 54 is convexly arranged on a portion of the second side surface 514 of the bracket 51. The second limiting portion 54 includes a fourth limiting plate 541, a fifth limiting plate 542 and a sixth limiting plate 543. The fourth limiting plate 541 is connected to the first section 515 of the bracket 51 and extends in the direction of the inner surface 512. The fifth limiting plate 542 is connected to the second section 516 of the bracket 51 and extends away from the second section 516. The sixth limiting plate 543 is connected to the third section 517 of the bracket 51, and the sixth limiting plate 543 extends in the direction of the fourth limiting plate 541. The fourth limiting plate 541 and the sixth limiting plate 543 are arranged oppositely and spaced along the length direction of the magnetic ring fixing member 50 (i.e., the Y-axis direction). The fifth limiting plate 542 is located between the fourth limiting plate 541 and the sixth limiting plate 543, and is spaced between the fourth limiting plate 541 and the sixth limiting plate 543. In other embodiments, the second limiting portion 54 including the fourth limiting plate 541 , the fifth limiting plate 542 and the sixth limiting plate 543 may be rod-shaped or ring-shaped.

[0053] Among them, the first limiting plate 531 and the fourth limiting plate 541 are opposite and spaced along the width direction of the magnetic ring fixing member 50. Along the Z-axis direction, the lengths of the first limiting plate 531 and the fourth limiting plate 541 are both shorter than the length of the first section 515. The second limiting plate 532 and the fifth limiting plate 542 are opposite and spaced along the width direction of the magnetic ring fixing member 50, and along the Y-axis direction, the lengths of the second limiting plate 532 and the fifth limiting plate 542 are both shorter than the length of the second section 516. The third limiting plate 533 and the sixth limiting plate 543 are opposite and spaced along the width direction of the magnetic ring fixing member 50, and along the Z-axis direction, the lengths of the third limiting plate 533 and the sixth limiting plate 543 are both shorter than the length of the third section 517. The first limiting plate 531, the second limiting plate 532, the third limiting plate 533, the fourth limiting plate 541, the fifth limiting plate 542 and the sixth limiting plate 543 together with the first section 515, the second section 516 and the third section 517 of the bracket 51 form a limiting space A. The limiting space A is opened between the first fixing section 518 and the second fixing section 520.

[0054] In some embodiments, the first limiting portion 53 may also be protruded from the second side surface 514 of the bracket 51 , and the second limiting portion 54 may be protruded from the first side surface 513 of the bracket 51 .

[0055] In this embodiment, the magnetic ring 40 is a circular ring structure. The magnetic ring 40 includes a first surface 41 and a second surface 42. The first surface 41 and the second surface 42 of the magnetic ring 40 are arranged opposite to each other along the thickness direction of the magnetic ring 40. The first surface 41 and the second surface 42 of the magnetic ring 40 are both circular ring surfaces.

[0056] The magnetic ring 40 also includes a harness through hole 43. The first surface 41 and the second surface 42 of the magnetic ring 40 surround the harness through hole 43. The harness through hole 43 is used for the signal line 23 to pass through. The shape of the harness through hole 43 can be, but is not limited to, a circular hole, a rectangular hole, a triangular hole, etc. In this embodiment, the harness through hole 43 is a circular hole as an example for description.

[0057] The magnetic ring 40 also includes an inner ring surface 44 and an outer ring surface 45. The inner ring surface 44 and the outer ring surface 45 of the magnetic ring 40 are arranged opposite to each other along the radial direction of the magnetic ring 40. The inner ring surface 44 and the outer ring surface 45 surround the wiring harness through hole 43. The inner ring surface 44 of the magnetic ring 40 faces the central axis of the wiring harness through hole 43. That is, the inner ring surface 44 of the magnetic ring 40 is the hole wall of the wiring harness through hole 43. The outer ring surface 45 of the magnetic ring 40 faces away from the axis of the wiring harness through hole 43. The outer ring surface 45 and the inner ring surface 44 are connected between the first surface 41 and the second surface 42.

[0058] The magnetic ring assembly 30 further includes a plurality of tightening members 60. One end in the length direction of the tightening member 60 can be movably connected to the other end in the length direction of the tightening member 60. The plurality of tightening members 60 are used to further fix the magnetic ring 40 to the magnetic ring fixing member 50. The tightening member 60 can be, but is not limited to, a plastic tie, a nylon tie, a stainless steel tie, etc. The number of the tightening members 60 can be reasonably determined according to the number of the magnetic rings 40 to firmly fix the magnetic ring 40 to the magnetic ring fixing member 50. In this embodiment, the tightening member 60 is a nylon tie, and the number of the tightening members 60 is three.

[0059] Combined with Figure 3 and Figure 4 , in this embodiment, since the magnetic ring 40 is in an annular structure and the bracket 51 has a "冂"-shaped cross section, the magnetic ring 40 is installed in the limiting space A of the magnetic ring fixing member 50 through the opening of the limiting space A. The outer ring surface 45 of the magnetic ring 40 faces the inner surface 512 of the bracket 51, and a part of the outer ring surface 45 abuts against the inner surface 512 of the bracket 51. A gap is formed between a part of the inner surface 512 of the bracket 51 and the outer ring surface 45 of the magnetic ring 40, and the gap is used to fill structural adhesive. The first surface 41 of the magnetic ring 40 faces the first limiting portion 53 and abuts against the inner surfaces of the first limiting plate 531, the second limiting plate 532, and the third limiting plate 533. The second surface 42 of the magnetic ring 40 faces the second limiting portion 54 and abuts against the inner surfaces of the fourth limiting plate 541, the fifth limiting plate 542, and the sixth limiting plate 543.

[0060] All three tightening members 60 pass through the wire harness through hole 43 of the magnetic ring 40 and respectively surround the first section 515, the second section 516, and the third section 517 of the bracket 51. The two ends in the length direction of each tightening member 60 are connected, so as to further fix the magnetic ring 40 to the magnetic ring fixing member 50. The tightening member 60 surrounding the second section 516 limits the magnetic ring 40 between the second limiting plate 532, the fifth limiting plate 542, and the second section 516, thereby realizing the limitation of the magnetic ring 40 in the height direction of the magnetic ring fixing member 50. The tightening member 60 surrounding the first section 515 limits the magnetic ring 40 between the first limiting plate 531, the fourth limiting plate 541, and the first section 515. The tightening member 60 surrounding the third section 517 limits the magnetic ring 40 between the third limiting plate 533, the sixth limiting plate 543, and the third section 517, thereby realizing the limitation of the magnetic ring 40 in the length direction of the magnetic ring fixing member 50.

[0061] By filling the structural adhesive in the gap between the magnetic ring 40 and the magnetic ring fixing member 50, the structural adhesive is connected between the outer ring surface 45 of the magnetic ring 40 and the inner surface 512 of the magnetic ring fixing member 50 to further fix the magnetic ring 40 to the magnetic ring fixing member 50. Combined with Figure 2, the magnetic ring fixing member 50 equipped with the magnetic ring 40 is installed on the bottom shell 11, and two screws pass through the first connection hole 519 and the second connection hole 521 of the magnetic ring fixing member 50 respectively, so as to fix the magnetic ring fixing member 50 and the magnetic ring 40 to the bottom shell 11 together, thereby ensuring the stability of the magnetic ring 40 during operation. Along the X-axis direction, the signal terminal 24 and the controller 21 are respectively located on opposite sides of the magnetic ring 40, and the signal line 23 passes through the harness through hole 43 of the magnetic ring 40 to avoid the signal line 23 passing through the magnetic ring 40 from being subjected to external electromagnetic interference, thereby ensuring stable transmission of the signal and improving the quality of the signal. In some embodiments, the magnetic ring fixing member 50 equipped with the magnetic ring 40 can be directly bonded and fixed to the bottom shell 11 through the first fixing section 518 and the second fixing section 520.

[0062] It should be noted that the height and length of the magnetic ring fixing member 50 can be adjusted according to the actual assembly requirements of the magnetic ring 40. The distance between the first section 515 and the third section 517 is greater than or equal to the diameter of the magnetic ring 40. The length of the second section 516 is greater than or equal to the diameter of the magnetic ring 40. In this embodiment, the height of the magnetic ring fixing member 50 is greater than the diameter of the magnetic ring 40. That is, the lengths of the first section 515 and the third section 517 are both greater than the diameter of the magnetic ring 40, preventing the magnetic ring 40 from contacting the bottom shell 11, thereby preventing the magnetic ring 40 from vibrating and causing other electronic devices connected to the bottom shell 11 to vibrate. The distance between the first section 515 and the third section 517 is equal to the diameter of the magnetic ring 40. The length of the second section 516 is equal to the diameter of the magnetic ring 40.

[0063] It should be noted that the harness through hole 43 of the magnetic ring 40 is exposed in the limiting space A. That is, the harness through hole 43 of the magnetic ring 40 is exposed in the first limiting portion 53 and the second limiting portion 54, so that the signal line 23 passes through the magnetic ring 40 without being blocked by the first limiting portion 53 and the second limiting portion 54, thereby improving the stability of signal transmission and the quality of the signal.

[0064] In some embodiments, the magnetic ring 40 is installed in the limiting space A of the magnetic ring fixing part 50 through the opening of the limiting space A, and the magnetic ring 40 and the bracket 51, the first limiting part 53 or the second limiting part 54 are spaced apart. Specifically, the outer ring surface 45 of the magnetic ring 40 is spaced apart from the inner surface 512 of the bracket 51, and a gap is formed. Alternatively, the first surface 41 of the magnetic ring 40 is spaced apart from the inner surface of the first limiting plate 531, the inner surface of the second limiting plate 532 and the inner surface of the third limiting plate 533, and a gap is formed. Alternatively, the second surface 42 of the magnetic ring 40 is spaced apart from the inner surface of the fourth limiting plate 541, the inner surface of the fifth limiting plate 542 and the inner surface of the sixth limiting plate 543, and a gap is formed. The magnetic ring 40 is fixed to the magnetic ring fixing part 50 by filling the gap formed between the magnetic ring 40 and the magnetic ring fixing part 50 with structural glue. Then, the magnetic ring 40 is further fixed to the magnetic ring fixing member 50 by a plurality of fastening members 60 .

[0065] In some embodiments, the first surface 41 of the magnetic ring 40 may face the second limiting portion 54 . The second surface 42 of the magnetic ring 40 may face the first limiting portion 53 .

[0066] In the related art, the magnetic ring 40 is only fixed in the power supply device 100 by structural adhesive. During the operation of the power supply device 100 and the magnetic ring 40, the magnetic ring 40 will vibrate, or the power supply device 100 will vibrate, and the magnetic ring 40 is easy to collide with nearby electronic devices, thereby affecting the performance of the magnetic ring 40. At the same time, the vibration of the magnetic ring 40 will affect the contact performance between the signal line 23 passing through and the signal terminal 24 and the controller 21, thereby affecting the stability and quality of signal transmission. In the embodiment of the present application, the magnetic ring 40 is installed on the magnetic ring fixing part 50, and the first limiting part 53 and the second limiting part 54 of the magnetic ring fixing part 50 limit and fix the magnetic ring 40, and the magnetic ring 40 and the magnetic ring fixing part 50 are further fixed by the tightening part 60. Finally, by filling the structural glue in the gap between the magnetic ring 40 and the magnetic ring fixing part 50, the magnetic ring 40 is completely fixed to the magnetic ring fixing part 50 through three methods of fixing the magnetic ring, thereby avoiding the vibration of the magnetic ring 40 during the use of the power supply device 100, effectively improving the performance of the magnetic ring 40, and preventing the vibration of the magnetic ring 40 from affecting the contact performance between the signal line 23 and the signal terminal 24 and the controller 21, thereby improving the stability of signal transmission and the quality of the signal.

[0067] See also Figure 8 , Fig. 9 and Fig.10 , Figure 8 for Figure 1 Another cross-sectional schematic diagram of the power supply device along line AA shown, Fig. 9 for Figure 8 Another structural schematic diagram of the magnetic ring assembly of the power supply device shown in FIG. Fig.10 for Fig. 9 Another structural schematic diagram of the magnetic ring assembly at another angle is shown. It should be noted that: Figure 8 The power supply device is only shown as having a partial structure of a magnetic ring component 30 and a signal control component 20 .

[0068] Different from the previous magnetic ring assembly 30, the magnetic ring assembly 30 includes a magnetic ring fixing member 50 and a magnetic ring 40, and does not require a fastening member 60 and structural adhesive, thereby saving steps. Of course, in some embodiments, in order to better ensure the stability of the magnetic ring 40 fixed to the magnetic ring fixing member 50, structural adhesive can be filled in the gap between the magnetic ring 40 and the magnetic ring fixing member 50.

[0069] See also Fig.11 , Fig.12 and Fig.13 , Fig.11for Fig.10 Another schematic diagram of the exploded structure of the magnetic ring assembly shown in FIG. Fig.12 for Fig.11 The structural schematic diagram of the second embodiment of the magnetic ring fixing member shown in FIG. Fig.13 for Fig.12 The structure diagram of the second embodiment of the magnetic ring fixing member shown is shown at another angle.

[0070] Different from the first embodiment of the magnetic ring fixing member 50 described above, in this embodiment, the structures of the first limiting portion 53 and the second limiting portion 54 are different.

[0071] Specifically, the magnetic ring fixing member 50 includes a bracket 51, a first limiting portion 53 and a second limiting portion 54. The first limiting portion 53 and the bracket 51 are formed separately, and the second limiting portion 54 and the bracket 51 are formed integrally. The first limiting portion 53 and the second limiting portion 54 are respectively located on opposite sides of the bracket 51 of the magnetic ring fixing member 50 in the width direction.

[0072] The first limiting portion 53 is connected to the first side surface 513 of the bracket 51. The second limiting portion 54 is protruding from the second side surface 514 of the bracket 51. The first limiting portion 53 is sleeved on the magnetic ring 40 and is fixed to the bracket 51 by clamping, so that the first limiting portion 53, the bracket 51 and the second limiting portion 54 fix the magnetic ring 40 together.

[0073] In this embodiment, the structure of the second limiting portion 54 is the same as that of the second limiting portion 54 in the first embodiment of the magnetic ring fixing member 50. Part of the first limiting portion 53 and the second limiting portion 54 and the bracket 51 together form a limiting space A of the magnetic ring fixing member 50. It should be noted that in this embodiment, the same contents as those in the first embodiment are not repeated.

[0074] See also Fig.14 , Fig.14 for Fig.11 A schematic structural diagram of the first limiting portion is shown.

[0075] In this embodiment, the first position limiting portion 53 includes a position limiting body 55 and a clamping body 56. The clamping body 56 is connected to the position limiting body 55 at an angle, and the clamping body 56 extends in a direction away from the position limiting body 55. The first position limiting portion 53 is made of plastic material.

[0076] In this embodiment, the limiting body 55 is a thin plate. The limiting body 55 includes a limiting surface 551 and a first surface 552. The limiting surface 551 and the first surface 552 are arranged opposite to each other along the thickness direction (i.e., the X-axis direction) of the limiting body 55. The shape of the limiting body 55 can be, but is not limited to, a rectangle, a triangle, a trapezoid, etc. Exemplarily, the limiting body 55 is roughly rectangular.

[0077] The clamping body 56 includes a clamping surface 561 and a second surface 562. The clamping surface 561 and the second surface 562 are arranged opposite to each other along the thickness direction (i.e., the Z-axis direction) of the clamping body 56. The clamping surface 561 is connected to the limiting surface 551 of the limiting body 55, and is vertically connected to the limiting surface 551. The second surface 562 is connected to the first surface 552 of the limiting body 55, and is vertically connected to the first surface 552. In other embodiments, the second surface 562 and the first surface 552 can also be non-vertically connected, and it only needs to match the shape of the second section 516 of the bracket 51.

[0078] The clamping body 56 further includes a first clamping buckle 563 and a second clamping buckle 564. The first clamping buckle 563 and the second clamping buckle 564 are convexly disposed on the clamping surface 561 of the clamping body 56, and are disposed at the end of the clamping body 56 away from the limiting body 55. The first clamping buckle 563 and the second clamping buckle 564 are respectively disposed at opposite ends of the length direction (i.e., the Y-axis direction) of the clamping body 56, and the first clamping buckle 563 and the second clamping buckle 564 are spaced apart along the length direction of the clamping body 56. The distance between the first clamping buckle 563 and the second clamping buckle 564 is greater than or equal to the length of the second section 516 of the bracket 51. The first clamping buckle 563 and the second clamping buckle 564 are used to be clamped to the second section 516 of the bracket 51.

[0079] It should be noted that the width of the engaging surface 561 of the engaging body 56 is equal to the width of the second section 516 of the bracket 51 , so that the first buckle 563 and the second buckle 564 on the engaging body 56 can be well engaged with the second section 516 of the bracket 51 .

[0080] The first limiting portion 53 also includes a limiting through hole 565, which runs through the limiting surface 551 and the first surface 552 of the limiting body 55. The limiting through hole 565 is used for the signal line 23 to pass through. The shape of the limiting through hole 565 is adapted to the shape of the harness through hole 43 of the magnetic ring 40. The shape of the limiting through hole 565 can be, but is not limited to, a circular hole, a rectangular hole, a triangular hole, etc. In this embodiment, since the harness through hole 43 is a circular hole, the limiting through hole 565 is approximately a circular hole. The diameter of the limiting through hole 565 is smaller than the diameter of the harness through hole 43.

[0081] The first limiting portion 53 also includes a limiting section 57. The limiting section 57 is convexly arranged on the limiting surface 551 of the limiting body 55 and extends in a direction away from the limiting body 55. The limiting section 57 is an arc-shaped plate, and the arc angle is greater than 180 degrees. The limiting section 57 includes an inner circumferential surface 571 and an outer circumferential surface 572. The inner circumferential surface 571 and the outer circumferential surface 572 of the limiting section 57 are arranged opposite to each other along the radial direction of the limiting section 57. The outer circumferential surface 572 of the limiting section 57 is connected to the limiting surface 551 of the limiting body 55. The inner circumferential surface 571 of the limiting section 57 is connected to the hole wall of the limiting through hole 565. The limiting section 57 is arranged around the periphery of the limiting through hole 565. It can be understood that the inner circumferential surface 571 of the limiting section 57 is the hole wall of the limiting through hole 565. The diameter of the outer peripheral surface 572 of the limiting section 57 is equal to the diameter of the harness through hole 43 of the magnetic ring 40, so that the limiting section 57 passes through the harness through hole 43 of the magnetic ring 40, and the magnetic ring 40 is fixed between the bracket 51 and the limiting section 57, and the magnetic ring 40 is clamped between the limiting body 55 and the second limiting portion 54. In other embodiments, the limiting section 57 can also be an annular protrusion.

[0082] In some embodiments, the first limiting portion 53 further includes a notch 58. The notch 58 penetrates the limiting surface 551 and the first surface 552 in the thickness direction of the limiting body 55, and penetrates the inner circumferential surface 571 and the outer circumferential surface 572 in the radial direction of the limiting segment 57. The notch 58 is connected to the limiting through hole 565, and the notch 58 is provided at the edge of the limiting body 55 facing away from the clamping body 56, so that the limiting body 55 is partially divided to form two sub-limiting segments 59 relatively spaced along the Y-axis direction. The two sub-limiting segments 59 can be relatively close to or relatively far away from each other by a certain distance under the action of force, and return to their original state after the action of the force is removed, thereby helping the limiting segment 57 to pass through the wiring harness through hole 43 of the magnetic ring 40 more easily, and realize the connection and fixation of the first limiting portion 53 and the magnetic ring 40. In this embodiment, the shape of the notch 58 is roughly rectangular.

[0083] See also Fig.15 , Fig.15 for Fig. 9 The cross-sectional structural diagram of the magnetic ring assembly is shown.

[0084] In this embodiment, the limiting body 55, the fourth limiting plate 541, the fifth limiting plate 542, the sixth limiting plate 543 and the bracket 51 jointly enclose a limiting space A. The magnetic ring 40 is installed in the limiting space A of the magnetic ring fixing member 50. The first limiting portion 53 is installed on the bracket 51. The first limiting portion 53 and the second limiting portion 54 are respectively located on opposite sides of the magnetic ring 40. The limiting section 57 of the first limiting portion 53 is inserted into the wire harness through hole 43 of the magnetic ring 40 along the thickness direction of the bracket 51. The limiting through hole 565 of the first limiting portion 53 communicates with the wire harness through hole 43 of the magnetic ring 40. The inner ring surface 44 of the magnetic ring 40 abuts against the outer peripheral surface 572 of the limiting section 57. That is, the limiting section 57 abuts against the hole wall of the wire harness through hole 43. The clamping body 56 is clamped on the second section 516 of the bracket 51. The clamping surface 561 of the clamping body 56 is connected to the outer surface 511 of the bracket 51. The first buckle 563 and the second buckle 564 of the clamping body 56 are clamped on the second section 516 and are connected to the second side surface 514 of the second section 516. The first buckle 563 and the second buckle 564 are opposite to the insertion direction of the limiting section 57. The first buckle 563 and the second buckle 564 are respectively located on both sides of the fifth limiting plate 542 in the length direction (i.e., the Y-axis direction), realizing not only the limiting and fixing in the thickness direction (i.e., the X-axis direction) of the magnetic ring 40, but also the limiting and fixing in the radial direction of the magnetic ring 40.

[0085] Wherein, since the magnetic ring 40 is in a circular ring structure and the bracket 51 has a "冂"-shaped cross-section, a part of the outer ring surface 45 of the magnetic ring 40 abuts against the inner surface 512 of the bracket 51. The first surface 41 of the magnetic ring 40 faces the first limiting portion 53 and abuts against the limiting surface 551 of the limiting body 55. The second surface 42 of the magnetic ring 40 faces the second limiting portion 54 and abuts against the inner surfaces of the fourth limiting plate 541, the fifth limiting plate 542 and the sixth limiting plate 543 respectively. In some embodiments, the outer ring surface 45 of the magnetic ring 40 and the bracket 51 may be arranged at intervals.

[0086] In the related art, the magnetic ring 40 is only fixed in the power supply device 100 by structural adhesive. During the operation of the power supply device 100 and the magnetic ring 40, the magnetic ring 40 will vibrate, or the power supply device 100 will vibrate, and the magnetic ring 40 is easy to collide with nearby electronic devices, thereby affecting the performance of the magnetic ring 40. At the same time, the vibration of the magnetic ring 40 will affect the contact performance between the signal line 23 passing through and the signal terminal 24 and the controller 21, thereby affecting the stability and quality of signal transmission. In the embodiment of the present application, the magnetic ring 40 is installed on the magnetic ring fixing member 50, and the wire harness through hole 43 of the magnetic ring 40 is passed through the limiting section 57 of the first limiting portion 53. The limiting body 55 and the first limiting portion 53 play a role in stopping and limiting the magnetic ring 40 along the X-axis direction, thereby realizing the limiting fixation of the magnetic ring 40 in the thickness direction. At the same time, the limit section 57 and the bracket 51 serve to stop and limit the magnetic ring 40 in the radial direction, thereby completely fixing the magnetic ring 40 to the magnetic ring fixing part 50, avoiding the magnetic ring 40 from vibrating during the use of the power supply device 100, effectively improving the performance of the magnetic ring 40, and preventing the magnetic ring 40 from vibrating and affecting the contact performance between the signal line 23 and the signal terminal 24 and the controller 21, thereby improving the stability of signal transmission and the quality of the signal.

[0087] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A magnetic ring assembly, characterized in that: include: A magnetic ring fixing member, comprising a bracket, a first limiting portion and a second limiting portion, wherein the first limiting portion and the second limiting portion are respectively connected to opposite sides of the bracket in a width direction and are arranged relatively spaced apart, and the first limiting portion and the second limiting portion and the bracket enclose a limiting space; and The magnetic ring includes a wiring harness through hole, and the magnetic ring is installed in the limiting space. In the thickness direction of the bracket, the first limiting part and the second limiting part limit the magnetic ring on the bracket, and the magnetic ring is fixed on the bracket, and the wiring harness through hole is exposed in the limiting space.

2. The magnetic ring assembly according to claim 1, characterized in that: The magnetic ring assembly also includes a fastening piece, which passes through the wire harness through hole of the magnetic ring and surrounds the bracket. The two ends of the fastening piece in the length direction are connected to fix the magnetic ring on the bracket.

3. The magnetic ring assembly according to claim 1, characterized in that: The first limiting part comprises a limiting body, a clamping body and a limiting section, wherein the limiting body is provided with a limiting through hole, the limiting section is convexly arranged on the surface of the limiting body and surrounds the limiting through hole, and the clamping body is convexly arranged at one end of the limiting body and extends away from the limiting body; The limiting body and the second limiting portion are opposite to each other in the thickness direction of the bracket and clamp the magnetic ring, the limiting section is inserted into the wiring harness through hole along the thickness direction of the bracket, the limiting through hole is connected to the wiring harness through hole, the limiting section abuts against the hole wall of the wiring harness through hole, the clamping body is clamped on the bracket, and the clamping direction of the clamping body is opposite to the insertion direction of the limiting section.

4. The magnetic ring assembly according to claim 2, characterized in that: The bracket includes a first side surface and a second side surface opposite to the first side surface and spaced apart, the bracket includes a first section, a second section and a third section, the second section is connected between the first section and the third section, the first section and the third section are opposite to each other and spaced apart along the length direction of the bracket, an opening opposite to the second section is provided between the first section and the third section, and the opening is communicated with the limiting space; The first limiting portion includes a first limiting plate, a second limiting plate and a third limiting plate, the first limiting plate is connected to the first section, the second limiting plate is connected to the second section, and the third limiting plate is connected to the third section; The structure of the first limiting part is the same as that of the second limiting part. The second limiting part includes a fourth limiting plate, a fifth limiting plate and a sixth limiting plate. The fourth limiting plate is connected to the first section and is relatively spaced from the first limiting plate. The fifth limiting plate is relatively spaced from the second limiting plate. The sixth limiting plate is relatively spaced from the third limiting plate. The first limiting plate, the second limiting plate, the third limiting plate, the fourth limiting plate, the fifth limiting plate, the sixth limiting plate and the bracket together form the limiting space.

5. The magnetic ring assembly according to claim 4, characterized in that: There are three tightening members, which respectively surround the first section, the second section and the third section. The tightening member surrounding the first section limits the magnetic ring between the first limit plate, the fourth limit plate and the first section. The tightening member surrounding the second section limits the magnetic ring between the second limit plate, the fifth limit plate and the second section. The tightening member surrounding the third section limits the magnetic ring between the third limit plate, the sixth limit plate and the third section.

6. The magnetic ring assembly according to any one of claims 1 to 5, characterized in that: The gap between the magnetic ring and the bracket is filled with structural adhesive, and the structural adhesive adheres and fixes the magnetic ring to the magnetic ring fixing piece.

7. The magnetic ring assembly according to claim 3, characterized in that: The bracket includes a first side surface and a second side surface opposite to the first side surface and spaced apart, the bracket includes a first section, a second section and a third section, the second section is connected between the first section and the third section, the first section and the third section are opposite to each other and spaced apart along the length direction of the bracket, an opening opposite to the second section is provided between the first section and the third section, and the opening is communicated with the limiting space; The second limiting portion includes a fourth limiting plate, a fifth limiting plate and a sixth limiting plate, the fourth limiting plate is connected to the first section, the fifth limiting plate is connected to the second section, and the sixth limiting plate is connected to the third section; The clamping body comprises a first clamping buckle and a second clamping buckle, wherein the first clamping buckle and the second clamping buckle are convexly arranged at the end of the clamping body away from the limiting body, and the first clamping buckle and the second clamping buckle are respectively located at two opposite sides of the length direction of the fifth limiting plate and clamped to the second section; The limiting body, the fourth limiting plate, the fifth limiting plate, the sixth limiting plate and the bracket together enclose the limiting space.

8. The magnetic ring assembly according to claim 7, characterized in that: The limiting body includes a limiting surface and a first surface arranged opposite to each other, the limiting through hole passes through the limiting surface and the first surface, and the first limiting portion may also include a notch, the notch passes through the limiting surface and the first surface, and passes through the two surfaces of the limiting section in the thickness direction, and the notch is connected to the limiting through hole.

9. The magnetic ring assembly according to claim 4 or 7, characterized in that: The bracket further includes a first fixing section and a second fixing section, the first fixing section is connected to the first section, the second fixing section is connected to the third section, and the first fixing section and the second fixing section are located at two sides of the opening.

10. A power supply device, applied to a vehicle, characterized in that: The power supply device comprises a box, a signal control component and a magnetic ring component according to any one of claims 1 to 8, the box comprises a bottom shell, the signal control component comprises a signal interface, a circuit board, a signal line and a signal terminal, the signal interface is connected to the bottom shell, the signal interface is mounted on the bottom shell, and the bracket is fixed on the bottom shell; The circuit board is fixed on the bottom shell, the signal terminal is fixed on the surface of the circuit board and is electrically connected to the circuit board, and the magnetic ring assembly is located between the signal terminal and the signal interface; One end of the signal line is connected to the signal terminal, the signal line passes through the harness through hole, and the other end of the signal line is connected to the signal interface.

11. The power supply device according to claim 10, characterized in that: The bracket includes a first fixing section and a second fixing section, the first fixing section includes a first connecting hole, the first connecting hole penetrates through two surfaces of the first fixing section in a thickness direction, the second fixing section includes a second connecting hole, the second connecting hole penetrates through two surfaces of the second fixing section in a thickness direction; Two screws pass through the first connection hole and the second connection hole respectively to be connected to the bottom shell.

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