Vehicle-mounted power supply and vehicle

By designing an electromagnetic shielding member in the vehicle power supply to form a shielding cavity with the equipment body, and using the elastic properties of the flange to achieve a close fit, the problem of electromagnetic interference in the vehicle power supply is solved and the electromagnetic shielding effect is significantly improved.

CN222996946UActive Publication Date: 2025-06-17SHINRY TECH
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Patent Information

Application Number
CN202421794245.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2025-06-17
Estimated Expiration
2034-07-26

AI Technical Summary

Technical Problem

The electromagnetic interference problem in vehicle-mounted power supplies leads to electromagnetic interference between electrical components and circuits.

Method used

A vehicle-mounted power supply is designed, and an electromagnetic shielding member and the equipment body form a shielding cavity. The second electrical component is arranged in the shielding cavity. The flange elastically abuts the frame to form a tight fit state to reduce electromagnetic interference.

Benefits of technology

Effectively hinder the propagation of electromagnetic waves, avoid electromagnetic interference, improve electromagnetic shielding effect, and at the same time, use the elastic properties of flange to absorb assembly tolerances to ensure smooth assembly of electromagnetic shielding parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a vehicle-mounted power supply and a vehicle, the vehicle-mounted power supply comprises: an equipment body, the equipment body comprises a functional body and a frame, the frame is bent and connected to the functional body, and the frame and the functional body jointly define an accommodating space; the circuit board is arranged on the equipment body and is used for arranging a first electric appliance element, and at least part of the circuit board faces the accommodating space; the electromagnetic shielding piece is arranged in the accommodating space, the electromagnetic shielding piece and the equipment body jointly form a shielding cavity deviating from the circuit board, the shielding cavity is used for arranging a second electrical component, the electromagnetic shielding piece comprises a shielding piece main body and a turned-over edge, the shielding piece main body faces the circuit board, and the turned-over edge faces the circuit board. The flanging is connected to the edge of the shielding member main body in a bending manner and elastically abuts against the frame. The vehicle-mounted power supply provided by the utility model can avoid or weaken electromagnetic interference.
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Description

Technical Field

[0001] The present application relates to the technical field of charging devices, and particularly relates to a vehicle power supply and a vehicle. Background Art

[0002] A vehicle power supply is a device in an electric vehicle that converts an AC power supply into a DC power supply. A number of electrical components and circuits are provided in the vehicle power supply, and electromagnetic waves will be generated during the operation of the electrical components and circuits. The existence of these electromagnetic waves causes electromagnetic interference among the various electrical components and circuits. Utility Model Content

[0003] The present application provides a vehicle power supply and a vehicle that can avoid or weaken electromagnetic interference.

[0004] In a first aspect, the present application provides a vehicle power supply, which includes:

[0005] A device body, which includes a functional body and a frame. The frame is bent and connected to the functional body and together with the functional body encloses a receiving space;

[0006] A circuit board, which is installed on the device body and is used for arranging first electrical components. At least part of the circuit board faces the receiving space; and

[0007] An electromagnetic shielding member, which is arranged in the receiving space and together with the device body forms a shielding cavity facing away from the circuit board. The shielding cavity is used for arranging second electrical components. The electromagnetic shielding member includes a shielding member body and a flange. The shielding member body faces the circuit board, and the flange is bent and connected to the edge of the shielding member body and elastically abuts against the frame.

[0008] Wherein, when the flange elastically abuts against the frame, the angle formed by the shielding member body and the flange is a first angle; when the electromagnetic shielding member is in a natural state, the angle formed by the shielding member body and the flange is a second angle. Among them, the second angle is greater than the first angle, and the second angle is greater than 90°.

[0009] Wherein, the flange has an abutting surface that abuts against the frame, and the abutting surface is a flat surface.

[0010] Wherein, the device body further includes a plurality of supporting parts, and the plurality of supporting parts are arranged at intervals and protrude from the functional body and / or the frame. The supporting parts are connected to the shielding member body through threaded parts.

[0011] Wherein, the electromagnetic shielding member further includes a first bent portion and a second bent portion. The first bent portion is bent and connected to the shielding member body, the second bent portion is bent and connected to the first bent portion, and the second bent portion is connected to the support portion through a threaded member.

[0012] Wherein, the device body further includes an isolation portion, the isolation portion protrudes from the functional body, the shielding member body is connected to the isolation portion, and the isolation portion, the functional body, the frame, and the electromagnetic shielding member together form the shielding cavity.

[0013] Wherein, the electromagnetic shielding member further includes a hem, the hem bends and extends from the edge of the shielding member body in a direction away from the circuit board, and the orthographic projection of the hem on the isolation portion falls within the range where the isolation portion is located.

[0014] Wherein, the frame includes a first frame and a second frame that are bent and connected to each other. The first frame, the second frame, and the functional body together enclose to form the accommodation space; the flanging includes a first sub-edge and a second sub-edge, and the first sub-edge and the second sub-edge are respectively bent and connected to the shielding member body; wherein, the first sub-edge elastically abuts against the first frame, and the second sub-edge elastically abuts against the second frame.

[0015] Wherein, the first sub-edge and the second sub-edge are arranged at intervals.

[0016] In a second aspect, the present application further provides a vehicle, and the vehicle includes the above-mentioned vehicle-mounted power supply.

[0017] In the vehicle-mounted power supply provided by the present application, since the second electrical component is arranged in the shielding cavity, the second electrical component is located on the side of the electromagnetic shielding member away from the circuit board. In this way, the propagation of electromagnetic waves can be hindered to a certain extent, thereby avoiding electromagnetic interference between the first electrical component and the second electrical component. Further, since the flanging elastically abuts against the frame, it means that the flanging and the frame are in a tightly fitting state. In this way, the gap between the two can be eliminated or reduced, thereby further improving the electromagnetic shielding effect, avoiding electromagnetic interference between the first electrical component and the second electrical component, or weakening the electromagnetic interference phenomenon. At the same time, the elastic characteristics of the flanging can also be used to absorb the assembly tolerance between the electromagnetic shielding member and the device body, so that the electromagnetic shielding member can be smoothly assembled to the device body. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for implementation will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Schematic diagram of the vehicle-mounted power supply provided by the embodiment of the present application.

[0020] Figure 2 is Figure 1 Exploded view of the vehicle-mounted power supply shown in the figure.

[0021] Figure 3 is Figure 1 Cross-sectional view of the vehicle-mounted power supply shown in the figure along line A-A.

[0022] Figure 4 is Figure 3 Partial enlarged schematic diagram of the vehicle-mounted power supply shown in the figure in area C.

[0023] Figure 5 is Figure 1 Cross-sectional view of the vehicle-mounted power supply shown in the figure along line B-B.

[0024] Figure 6 is Figure 5 Partial enlarged schematic diagram of the vehicle-mounted power supply shown in the figure in area D.

[0025] Figure 7 is Figure 2 Schematic diagram of the electromagnetic shielding part in the vehicle-mounted power supply shown in the figure.

[0026] Figure 8 is Figure 2 Partial schematic diagram of the equipment body in the vehicle-mounted power supply shown in the figure.

[0027] Figure 9 Partial schematic diagram of the vehicle-mounted power supply provided by the embodiment of the present application after hiding the circuit board.

[0028] Figure 10 is Figure 7 Schematic diagram of the electromagnetic shielding part shown in the figure from another perspective.

[0029] Figure 11 is Figure 3 Partial enlarged schematic diagram of the vehicle-mounted power supply shown in the figure in area E.

[0030] Figure 12 Schematic diagram of the vehicle provided by the embodiment of the present application.

[0031] Explanation of reference numerals:

[0032] Vehicle 100, vehicle-mounted power supply 10, device body 110, circuit board 120, electromagnetic shielding member 130, threaded member 140, functional body 111, frame 112, support portion 113, isolation portion 114, shielding member body 131, flanging 132, hemming 133, first bending portion 134, second bending portion 135, first body 1111, second body 1112, first frame 1121, second frame 1122, first sub-edge 1321, second sub-edge 1322, accommodation space X1, shielding cavity X2, abutting surface M132, angle α. Detailed implementation manners

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present application belong to the scope of protection of the present application.

[0034] Referring to "embodiment" or "embodiment manner" herein means that a specific feature, structure or characteristic described in connection with the embodiment or embodiment manner may be included in at least one embodiment of the present application. The phrase appears at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0035] Please refer to Figure 1 and Figure 2 The present application provides a vehicle-mounted power supply 10, which is used to convert alternating current into direct current required by the battery. That is, the vehicle-mounted power supply 10 is equivalent to a charging converter. The vehicle-mounted power supply 10 can also be referred to as a vehicle-mounted charger, etc. The vehicle-mounted power supply 10 includes: a device body 110, a circuit board 120 (Printed Circuit Board, PCB), and an electromagnetic shielding member 130. The following will be introduced in detail with reference to the accompanying drawings.

[0036] Please refer to Figure 1 and Figure 2, the device body 110 includes a functional body 111 and a frame 112. The frame 112 is bent and connected to the functional body 111 and together with the functional body 111 encloses a receiving space X1. Specifically, the functional body 111 may include a first body 1111 and a second body 1112. The first body 1111 and the frame 112 together define a receiving space. The second body 1112 is disposed within the receiving space and occupies a part of the receiving space. The receiving space not occupied by the second body 1112 is the above-mentioned receiving space X1. That is, the first body 1111, the second body 1112, and the frame 112 together enclose the receiving space X1. The frame 112 is the housing part of the charging device, or can be called the box part, and its material is metal, such as aluminum, aluminum alloy, etc.

[0037] Please refer to Figure 1 and Figure 2 , the circuit board 120 is installed on the device body 110 and is used to arrange the first electrical components. The circuit board 120 at least partially faces the receiving space X1. Specifically, the circuit board 120 can also be called the core PCB board, etc. The circuit board 120 is disposed on the side of the second body 1112 facing away from the first body 1111. The circuit board 120 can be fixed to the second body 1112 by connecting parts such as bolts, but is not limited thereto. A part of the circuit board 120 faces the second body 1112, and another part of the circuit board 120 faces the receiving space X1.

[0038] Please further refer to Figures 3 to 6 , the electromagnetic shielding member 130 is disposed within the receiving space X1 and together with the device body 110 forms a shielding cavity X2 facing away from the circuit board 120. The shielding cavity X2 is used to arrange the second electrical components. The electromagnetic shielding member 130 includes a shielding member main body 131 and a flanging 132. The shielding member main body 131 is generally sheet-shaped and faces the circuit board 120. The flanging 132 is bent and connected to the edge of the shielding member main body 131 and elastically abuts against the frame 112.

[0039] Among them, the electromagnetic shielding member 130 can also be referred to as a shielding cover, and the electromagnetic shielding member 130 is used to shield or reduce electromagnetic interference. The electromagnetic shielding member 130 can be, but is not limited to, materials such as aluminum, iron, stainless steel, copper, etc. that can shield electromagnetic waves. The flanging 132 and the shielding member main body 131 can be of the same material or different materials. The flanging 132 and the shielding member main body 131 can be of an integral structure or a split structure. Since the second electrical component is disposed in the shielding cavity X2, the second electrical component is located on the side of the electromagnetic shielding member 130 away from the circuit board 120. In this way, the propagation of electromagnetic waves can be hindered to a certain extent, thereby preventing the first electrical component and the second electrical component from interfering with each other electromagnetically. Further, since the flanging 132 elastically abuts against the frame 112, this means that the flanging 132 and the frame 112 are in a tightly fitting state. In this way, the gap between the two can be eliminated or reduced, thereby further improving the electromagnetic shielding effect, preventing the first electrical component and the second electrical component from interfering with each other electromagnetically, or weakening the electromagnetic interference phenomenon. At the same time, the elastic characteristics of the flanging 132 can also be used to absorb the assembly tolerance between the electromagnetic shielding member 130 and the device body 110, so that the electromagnetic shielding member 130 can be smoothly assembled to the device body 110.

[0040] Optionally, the device body 110 includes a housing, and the frame 112 is a part of the housing. The housing can be formed by casting, and the inner wall of the frame 112 that abuts against the frame 112 can have a certain draft angle. It can be understood that there are certain errors in the casting process. In this application, the elastic flanging 132 of the electromagnetic shielding member 130 can fit well with the inner wall of the frame 112 with a draft angle, thereby improving the shielding effect of the electromagnetic shielding member 130.

[0041] Please refer to Figures 3 to 6 , the frame 112 includes a first frame 1121 (see Figure 3 and Figure 4 ) and a second frame 1122 (see Figure 5 and Figure 6 ) that are bent and connected. The first frame 1121, the second frame 1122, and the functional body 111 together enclose the accommodation space X1. The flanging 132 includes a first sub-edge 1321 (see Figure 3 and Figure 4 ) and a second sub-edge 1322 (see Figure 5 and Figure 6) The first sub-edge 1321 and the second sub-edge 1322 are respectively bent and connected to different edges of the shielding member body 131. Among them, the first sub-edge 1321 elastically abuts against the first frame 1121, so that the first sub-edge 1321 and the first frame 1121 are in a tightly fitting state, thereby eliminating or reducing the gap therebetween, and further avoiding or reducing the probability of electromagnetic waves passing through between the first sub-edge 1321 and the first frame 1121. At the same time, the second sub-edge 1322 also elastically abuts against the second frame 1122, so that the second sub-edge 1322 and the second frame 1122 are in a tightly fitting state, thereby eliminating or reducing the gap therebetween, and further avoiding or reducing the probability of electromagnetic waves passing through between the second sub-edge 1322 and the second frame 1122. It can be seen that electromagnetic interference between the first electrical component and the second electrical component can be avoided or the electromagnetic interference phenomenon can be weakened through both the first sub-edge 1321 and the second sub-edge 1322. It should be noted that in the assembled state, the angle α formed by the first sub-edge 1321 and the shielding member body 131 and the angle α formed by the second sub-edge 1322 and the shielding member body 131 can be the same or different.

[0042] Please refer to Figure 7 , the first sub-edge 1321 and the second sub-edge 1322 are arranged at intervals, that is to say, the first sub-edge 1321 and the second sub-edge 1322 are not connected as a whole. It can be understood that the assembly tolerances between the first sub-edge 1321 and the first frame 1121 and between the second sub-edge 1322 and the second frame 1122 may be different. If the tightness of the fit between the first sub-edge 1321 and the first frame 1121 is the same as that between the second sub-edge 1322 and the second frame 1122, then the first sub-edge 1321 and the second sub-edge 1322 need to elastically bend at different angles α relative to the shielding member body 131 adaptively. If the first sub-edge 1321 and the second sub-edge 1322 are connected as a whole, it will cause the first sub-edge 1321 and the second sub-edge 1322 to elastically bend at the same angle α relative to the shielding member body 131, which may result in the first sub-edge 1321 being tightly fitted to the first frame 1121, but the second sub-edge 1322 not being tightly fitted to the second frame 1122, or the second sub-edge 1322 being tightly fitted to the second frame 1122, but the first sub-edge 1321 not being tightly fitted to the first frame 1121, thus resulting in a poor electromagnetic shielding effect. In this embodiment, the first sub-edge 1321 and the second sub-edge 1322 are arranged at intervals, so that the first sub-edge 1321 and the second sub-edge 1322 are allowed to elastically bend at different angles α relative to the shielding member body 131 adaptively, thereby ensuring that the first sub-edge 1321 can be tightly fitted to the first frame 1121 while also ensuring that the second sub-edge 1322 is tightly fitted to the second frame 1122.

[0043] Please refer to Figure 4 and Figure 6 When the flanging 132 elastically abuts against the frame 112, the angle α formed between the shielding member body 131 and the flanging 132 is the first angle. When the electromagnetic shielding member 130 is in a natural state, the angle α formed between the shielding member body 131 and the flanging 132 is the second angle. Wherein, the second angle is greater than the first angle, and the second angle is greater than 90°.

[0044] Specifically, the so-called natural state refers to the state without external force when the electromagnetic shielding member 130 has not been assembled to the device body 110. At this time, the first angle is the maximum angle α formed between the shielding member body 131 and the flanging 132. The first angle can be but not limited to 95°, 100°, 102°, 107°, 111°, 116°, 119°, 120°, 128°, 135°, 138°, 141°, 145°, 156°, etc. After the electromagnetic shielding member 130 is assembled to the device body 110, the flanging 132 will adaptively bend elastically relative to the shielding member body 131, so as to decrease from the first angle to the second angle, and then present as the flanging 132 elastically abutting against the frame 112. In this way, the gap between the flanging 132 and the frame 112 can be eliminated or reduced, thereby improving the electromagnetic shielding effect between the first electrical component and the second electrical component.

[0045] Please refer to Figure 4 and Figure 6 The flanging 132 and the shielding member body 131 are in an arc transition, that is to say, the connecting part between the flanging 132 and the shielding member body 131 (hereinafter simply referred to as the transition part) is arc-shaped. It can be understood that after the electromagnetic shielding member 130 is assembled to the device body 110, the flanging 132 will bend relative to the shielding member body 131, and this bending change will occur at the transition part between the flanging 132 and the shielding member body 131. Therefore, the stress at the transition part is relatively large. In this embodiment, the transition part between the flanging 132 and the shielding member body 131 is designed to be arc-shaped, so that the stress can be distributed as evenly as possible along the arc direction of the transition part, so as to avoid breakage or cracks at the transition part, thereby ensuring that the flanging 132 can always elastically abut against the frame 112, and further maintaining a good electromagnetic shielding effect.

[0046] Please refer to Figure 7 The flanging 132 has an abutting surface M132, and the abutting surface M132 abuts against the frame 112, and the abutting surface M132 is a plane. It can be understood that by setting the abutting surface M132 as a plane, the flanging 132 and the frame 112 are in surface-to-surface contact, which increases the contact area between the flanging 132 and the frame 112 and reduces the probability of gaps, thereby improving the electromagnetic shielding effect.

[0047] Please refer to Figure 8 and Figure 9 The device body 110 further includes a plurality of support portions 113. The plurality of support portions 113 are spaced apart and protrude from the functional body 111 and / or the frame 112. The support portions 113 are connected to the shielding member body 131 by threaded members 140. That is to say, the support portions 113 can be provided on the functional body 111, can also be provided on the frame 112, or can be connected to both the functional body 111 and the frame 112 at the same time. The connection manner between the support portions 113 and the shielding member body 131 is by threaded connection. The threaded members 140 refer to connecting members with threads, such as bolts, screws, etc. For example, threaded holes are provided on the support portions 113, and through holes are provided on the shielding member body 131. Among them, the through holes are aligned with the threaded holes. The through holes and the threaded holes are used for inserting bolts, and the bolts can be screwed with the threaded holes on the support portions 113, so that the shielding member body 131 is stably installed on the support portions 113.

[0048] Please refer to Figure 9 and Figure 10 The electromagnetic shielding member 130 further includes a first bending portion 134 and a second bending portion 135. The first bending portion 134 is bent and connected to the shielding member body 131. The second bending portion 135 is bent and connected to the first bending portion 134. The second bending portion 135 is connected to the support portion 113 by a threaded member 140. Specifically, the first bending portion 134 extends by bending from the edge of the shielding member body 131 in a direction away from the circuit board 120. The bending angle formed between the first bending portion 134 and the shielding member body 131 can be but is not limited to 90°. The second bending portion 135 extends by bending from the edge of the first bending portion 134 in a direction away from the second sub-edge 1322. The bending angle formed between the first bending portion 134 and the second bending portion 135 can be but is not limited to 90°. Among them, the first bending portion 134 can play an electromagnetic isolation role, and the second bending portion 135 plays a role of being connected to the support portion 113 by the threaded member 140. The threaded member 140 refers to a connecting member with a thread, such as a bolt, a screw, etc. For example, threaded holes are provided on the support portion 113, and through holes are provided on the second bending portion 135. Among them, the through holes are aligned with the threaded holes. The through holes and the threaded holes are used for inserting bolts, and the bolts can be screwed with the threaded holes on the support portion 113, so that the second bending portion 135 is stably installed on the support portion 113.

[0049] Please refer to Figure 3, the device body 110 further includes a partition 114, which is plate-shaped. The partition 114 protrudes from the first body 1111 of the functional body 111, and opposite ends of the partition 114 are respectively connected to the second body 1112 and the frame 112. The shielding member body 131 is connected to the partition 114, and the shielding member body 131 can be directly covered on the partition 114. The partition 114, the functional body 111, the frame 112, and the electromagnetic shielding member 130 together form the shielding cavity X2. The partition 114 can be made of a metal material, so that the partition 114 can achieve an electromagnetic shielding effect, thereby further enhancing the electromagnetic isolation effect between the first electrical component and the second electrical component.

[0050] Please further refer to Figure 11 , the electromagnetic shielding member 130 further includes a folded edge 133, which extends by bending from the edge of the shielding member body 131 in a direction away from the circuit board 120, and the orthographic projection of the folded edge 133 on the partition 114 falls within the range where the partition 114 is located. That is to say, the folded edge 133 is bent and connected to the shielding member body 131 and faces the partition 114. The angle formed by the folded edge 133 and the shielding member body 131 can be but is not limited to 90°. It can be understood that the folded edge 133 plays a positioning role in the installation of the electromagnetic shielding member 130, so that the above-mentioned through holes and threaded holes are aligned, thereby facilitating the installation of the electromagnetic shielding member 130. Further, the folded edge 133 can be attached to the partition 114, which can increase the contact area between the electromagnetic shielding member 130 and the partition 114, thereby reducing the probability of gaps between the two, and further enhancing the electromagnetic shielding effect.

[0051] Please refer to Figure 12 , the present application also provides a vehicle 100, which can be but is not limited to a sedan, an off-road vehicle, a pickup truck, a minivan, a bus, a truck, a bus, etc. The vehicle 100 includes the vehicle-mounted power supply 10 described in any of the above embodiments. The vehicle 100 may further include a battery, which is electrically connected to the vehicle-mounted power supply 10. When the vehicle 100 is charging at a charging station, the vehicle-mounted power supply 10 is used to convert the alternating current of the charging station into the direct current required by the battery.

[0052] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application, and these improvements and refinements are also regarded as the protection scope of the present application.

Claims

1. A vehicle-mounted power supply, characterized in that: The vehicle-mounted power supply comprises: The device body comprises a functional body and a frame, wherein the frame is bent and connected to the functional body and is jointly enclosed with the functional body to form a receiving space; A circuit board, which is mounted on the device body and is used to set a first electrical component, and at least a portion of the circuit board faces the receiving space; and An electromagnetic shielding component, wherein the electromagnetic shielding component is arranged in the accommodating space and together with the device body forms a shielding cavity away from the circuit board, wherein the shielding cavity is used to set a second electrical component, and the electromagnetic shielding component comprises a shielding component body and a flange, wherein the shielding component body faces the circuit board, and the flange is bent and connected to the edge of the shielding component body and elastically abuts against the frame.

2. The vehicle-mounted power supply according to claim 1, characterized in that: When the flange elastically abuts against the frame, the angle formed by the shielding component body and the flange is a first angle; when the electromagnetic shielding component is in a natural state, the angle formed by the shielding component body and the flange is a second angle; wherein the second angle is greater than the first angle, and the second angle is greater than 90°.

3. The vehicle-mounted power supply according to claim 1, characterized in that: The flange has a contact surface, the contact surface contacts the frame, and the contact surface is a plane.

4. The vehicle-mounted power supply according to claim 1, characterized in that: The device body also includes a plurality of supporting parts, which are arranged at intervals and protrude from the functional body and / or the frame, and the supporting parts are connected to the shielding member body through screws.

5. The vehicle-mounted power supply according to claim 4, characterized in that: The electromagnetic shielding component further includes a first bending portion and a second bending portion, wherein the first bending portion is bent and connected to the shielding component body, the second bending portion is bent and connected to the first bending portion, and the second bending portion is connected to the supporting portion through a screw.

6. The vehicle-mounted power supply according to claim 1, characterized in that: The device body also includes an isolation portion, which is protruding from the functional body. The shielding component main body is connected to the isolation portion. The isolation portion, the functional body, the frame, and the electromagnetic shielding component together constitute the shielding cavity.

7. The vehicle-mounted power supply according to claim 6, characterized in that: The electromagnetic shielding component further includes a folded edge, which is bent and extended from an edge of the shielding component body in a direction away from the circuit board, and an orthographic projection of the folded edge on the isolation portion falls within the range of the isolation portion.

8. The vehicle-mounted power supply according to claim 1, characterized in that: The frame includes a first frame and a second frame that are bent and connected to each other, and the first frame, the second frame, and the functional body are jointly arranged to form the accommodating space; the flange includes a first sub-edge and a second sub-edge, and the first sub-edge and the second sub-edge are respectively bent and connected to the shielding component body; wherein, the first sub-edge elastically abuts against the first frame, and the second sub-edge elastically abuts against the second frame.

9. The vehicle-mounted power supply according to claim 8, characterized in that: The first sub-side and the second sub-side are arranged at intervals.

10. A vehicle, characterized in that: The vehicle comprises the on-board power supply according to any one of claims 1 to 9.