Shielding assembly and applicable vehicle-mounted charger thereof

Abstract

A shielding assembly comprises a first shielding structure, a baffle and a second shielding structure. The baffle plate is located at one side of the first shielding structure, wherein the baffle plate extends from a first direction close to the first shielding structure to a direction far away from the first shielding structure. The second shielding structure comprises a first fixing part and a vertical part which are connected with each other, the first fixing part is connected with the first shielding structure, and the vertical part and the baffle plate are at least partially overlapped in the first direction. The design of the second shielding structure enhances the shielding effect of the baffle plate and the fixing effect of the first shielding structure, and can achieve better electromagnetic compatibility.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a shielding assembly, in particular, to an electromagnetic compatibility shielding assembly. BACKGROUND

[0002] An interference source (e.g., a transformer) is likely to generate electromagnetic interference, which is generated by electromagnetic field accompanying the action of voltage and current. If the interference source is not blocked, it will affect sensitive devices (e.g., a filter), causing abnormal operation. Electromagnetic compatibility (EMC) design can avoid such problems, and EMC mainly has shielding, filtering and grounding, etc. to block or weaken the interference source.

[0003] The existing shielding design of electromagnetic compatibility is to use a shielding cover between the transformer and the filter alone, but the shielding cover and the baffle are not effectively connected, so that the shielding effect is limited, and the shielding cover is not easily grounded, causing the filter to still be affected by electromagnetic interference and operate abnormally. CONTENT OF THE INVENTION

[0004] According to some embodiments of the present disclosure, a shielding assembly includes a first shielding structure, a baffle and a second shielding structure. The baffle is located on one side of the first shielding structure, wherein the baffle extends from the first shielding structure in a first direction away from the first shielding structure. The second shielding structure includes a first fixed part and an upright part connected to each other, wherein the first fixed part is connected to the first shielding structure, and the upright part at least partially overlaps the baffle in the first direction.

[0005] In some embodiments, the baffle is perpendicular to the first shielding structure.

[0006] In some embodiments, the baffle has two opposite surfaces and a groove at an end portion away from the first shielding structure, the two opposite surfaces respectively extend to the opposite sides to form two protruding portions, and the two protruding portions define the groove, and the upright part of the second shielding structure is fitted into the groove.

[0007] In some embodiments, the baffle has two opposite surfaces and a groove at an end portion adjacent to the first shielding structure, any one of the two opposite surfaces is recessed to the opposite side to form the groove, and the upright part of the second shielding structure is fitted into the groove.

[0008] In some embodiments, the first fixed part of the second shielding structure, the upright part of the second shielding structure and the baffle are all flat plates, and the first fixed part and the upright part of the second shielding structure are vertically arranged.

[0009] In some embodiments, the baffle is zigzag-shaped, and the overlapping part of the upright part of the second shielding structure and the baffle is zigzag-shaped to match the shape of the baffle.

[0010] In some embodiments, the baffle is in an S shape or a zigzag shape.

[0011] In some embodiments, the first fixing portion of the second shielding structure is connected to an edge of the first shielding structure and formed as an integral structure.

[0012] In some embodiments, the shielding assembly further comprises a first fixing member penetrating through the first fixing portion of the second shielding structure and the first shielding structure, so that the second shielding structure is fixedly arranged on the first shielding structure.

[0013] In some embodiments, the shielding assembly further comprises a spring sheet, the spring sheet comprising a second fixing portion and an abutting portion, the second fixing portion being arranged on the first shielding structure, and the abutting portion abutting an end portion of the baffle adjacent to the first shielding structure.

[0014] In some embodiments, the abutting portion of the spring sheet is in an eccentric circular arc shape, a concentric circular arc shape, or a square shape.

[0015] In some embodiments, the shielding assembly further comprises a second fixing member penetrating through the second fixing portion of the spring sheet and the first shielding structure, so that the spring sheet is fixedly arranged on the first shielding structure.

[0016] In some embodiments, the shielding assembly further comprises a first solder layer arranged between the first fixing portion of the second shielding structure and the first shielding structure, and a second solder layer arranged between the second fixing portion of the spring sheet and the first shielding structure.

[0017] According to some embodiments of the present disclosure, a vehicle-mounted charger comprises any of the shielding assemblies described above and a housing. The housing is connected to the baffle, and the shielding assembly is arranged in the housing.

[0018] In some embodiments, the vehicle-mounted charger further comprises an electromagnetic filter connected to an alternating current power source, a transformer comprising a primary winding and a secondary winding, and an AC-DC converter connected between the electromagnetic filter and the primary winding. The electromagnetic filter, the transformer, and the AC-DC converter are arranged in the housing. Part of the housing, the baffle, and the first shielding structure define a containing space, the electromagnetic filter is arranged in the containing space, the first shielding structure covers the transformer, and is arranged between the electromagnetic filter and the transformer.

[0019] In the above embodiments of the present disclosure, the first fixing portion of the second shielding structure is connected to the first shielding structure, and the upright portion of the second shielding structure and the baffle at least partially overlap in the first direction. Therefore, the shielding assembly can enhance the electromagnetic compatibility effect through the second shielding structure. BRIEF DESCRIPTION OF DRAWINGS

[0020] When taken in conjunction with the accompanying drawings, the disclosure will be best understood. Figure One It is noted that the various features are not drawn to scale. In fact, the dimensions can be arbitrarily increased or decreased for the sake of discussion. Skilled artisans appreciate that the features are shown exaggerated or minimized for clarity and conciseness.

[0021] Figure 1 FIG. 1 illustrates a perspective view of a shielding assembly according to an embodiment of the disclosure;

[0022] Figure 2 FIG. 2 illustrates a cross-sectional view of the shielding assembly of FIG. 1 along line 2-2; Figure 1

[0023] Figure 3 FIG. 4 illustrates a block diagram of an electromagnetic filter, a transformer, and an AC-DC converter of an on-board charger according to an embodiment of the disclosure;

[0024] Figure 4 FIG. 5 illustrates a partial enlarged cross-sectional view of the shielding assembly of FIG. 1; Figure 2

[0025] Figure 5 FIG. 6 illustrates a partial enlarged cross-sectional view of a shielding assembly according to another embodiment of the disclosure;

[0026] Figure 6 FIG. 7 illustrates a partial enlarged cross-sectional view of a shielding assembly according to still another embodiment of the disclosure;

[0027] Figure 7 FIG. 8 illustrates a partial enlarged cross-sectional view of a shielding assembly according to an embodiment of the disclosure;

[0028] Figure 8 FIG. 9 illustrates a cross-sectional view of a shielding assembly according to an embodiment of the disclosure;

[0029] Figure 9 FIG. 10 illustrates a cross-sectional view of a shielding assembly according to another embodiment of the disclosure;

[0030] Figure 10 FIG. 11 illustrates a cross-sectional view of a shielding assembly according to still another embodiment of the disclosure;

[0031] Figure 11 FIG. 12 illustrates a cross-sectional view of a shielding assembly according to another embodiment of the disclosure;

[0032] Figure 12 FIG. 13 illustrates a cross-sectional view of a shielding assembly according to another embodiment of the disclosure;

[0033] Figure 13 FIG. 14 illustrates a partial enlarged cross-sectional view of a shielding assembly according to an embodiment of the disclosure.​​

[0034] [Symbol Explanation]

[0035] 100, 100a, 100b, 100c, 100d, 100e: Shielding components

[0036] 200: Outer shell

[0037] 110, 110e: First shielding structure

[0038] 112: Channel

[0039] 120, 120a, 120b, 120c: baffles

[0040] 122b, 122c, 122d: Protruding parts

[0041] 123b, 123c, 123d: Groove

[0042] 130, 130a, 130e: Second shielding structure

[0043] 131, 131a, 131e: Erect part

[0044] 132, 132e: First fixing part

[0045] 140, 140a, 140b: Shrapnel

[0046] 141: Second fixing part

[0047] 142:Butt part

[0048] 150, 160: Fasteners

[0049] 171: AC input

[0050] 172, 175: Filters

[0051] 173: AC-DC converter

[0052] 174: Transformer

[0053] 176: DC output

[0054] 177: Primary winding

[0055] 178: Secondary winding

[0056] 180: First solder layer

[0057] 181: Second solder layer

[0058] 190: Integrated structure

[0059] 2-2: Line Segment

[0060] S1, S2: Space

[0061] B: Edge

[0062] D: Direction Detailed Implementation

[0063] The following disclosure of embodiments provides many different implementations, or examples, for carrying out the various features of the provided subject matter. Specific examples of components and arrangements are described below to simplify the subject matter. Of course, these examples are merely illustrative and are not intended to be limiting. Furthermore, component symbols and / or letters may be repeated in various examples. This repetition is for simplicity and clarity and does not in itself specify the relationship between the various implementations and / or configurations discussed.

[0064] It should be understood that this invention can have various variations in different ways, all of which do not depart from the scope of this invention, and the descriptions and drawings herein are for illustrative purposes only and not for limiting this invention. For example, if the following description of this disclosure refers to a first feature disposed on or above a second feature, it indicates that it includes embodiments in which the first and second features are in direct contact, and also includes embodiments in which additional features may be disposed between the first and second features, so that the first and second features may not be in direct contact. In addition, different embodiments in this disclosure may use repeated reference numerals and / or markings. These repetitions are for simplification and clarity and are not intended to limit the various embodiments and / or the relationship between the described appearance structures. Furthermore, to facilitate the description of the relationship between one component or feature and another (plural) component or feature in the drawings, spatial terms such as "upper," "lower," "left," "right," and similar terms may be used. In addition to the orientations shown in the drawings, spatial terms are used to cover different orientations of the device in use or operation. The device may also be positioned otherwise (e.g., rotated 90 degrees or located in other orientations), and the description of the spatially relevant terminology used will be interpreted accordingly. Furthermore, when a component is referred to as being "connected to" or "coupled to" another component, it may be directly connected to or coupled to the other component, or there may be intervening components. Additionally, it is understood that while terms such as "first," "second," and "third" may be used within the claims to describe different components, these components should not be limited by these terms, and the components described in the embodiments are represented by different component symbols. These terms are used to distinguish different components. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component without departing from the scope of the embodiments. The term "and / or" as used thus includes any or all combinations of one or more of the related listed items.

[0065] Figure 1 A perspective view of a shielding assembly 100 according to an embodiment of the present disclosure is shown. Figure 2 Draw Figure 1 A cross-sectional view of the shielding component 100 along line segment 2-2, and also refer to... Figure 1 and Figure 2 The shielding assembly includes a first shielding structure 110, a baffle 120, and a second shielding structure 130. The baffle 120 is located on one side (e.g., the right side) of the first shielding structure 110, and extends from adjacent to the first shielding structure 110 in a first direction D (e.g., a vertical direction) away from the first shielding structure 110. In one embodiment, the baffle 120 is disposed perpendicular to the first shielding structure 110. It is understood that the first direction D disclosed herein may be a single direction or multiple continuously changing directions, and this disclosure is not limited thereto.

[0066] The first shielding structure 110 is, for example, a large-area metal layer, placed between the interference source and the sensitive device to achieve a blocking effect. The second shielding structure 130 disclosed herein can enhance the electromagnetic compatibility effect. The second shielding structure 130 includes a first fixing part 132 and an upright part 131 connected to each other. The first fixing part 132 is connected to the first shielding structure 110, and the upright part 131 and the baffle 120 overlap at least partially in the first direction D. In one embodiment, the first fixing part 132, the upright part 131, and the baffle 120 of the second shielding structure 130 are all flat, and the first fixing part 132 and the upright part 131 of the second shielding structure 130 are arranged perpendicularly.

[0067] In some implementations, such as Figure 1 As shown, the on-board charger includes the aforementioned shielding component 100 and housing 200. The housing 200 is interconnected with the baffle 120, and the shielding component 100 is disposed within the housing 200. Optionally, the housing 200 and the shielding component 100 are integral parts, that is, the housing 200 and the baffle 120 are integrally formed. Of course, the housing 200 and the baffle 120 can also be separate parts, and this disclosure does not impose any limitations. Specifically, the housing 200 is, for example, cuboid in shape, and the baffle 120 is perpendicular to one side of the housing 200. In some embodiments, the housing 200 can be connected to the shielding component 100 by welding, riveting, or other connection methods. In this way, the on-board charger can improve the electromagnetic compatibility effect through the second shielding structure 130. In some embodiments, the housing 200 is, for example, made of metal, such as aluminum alloy, and this application does not impose any limitations.

[0068] In some embodiments, the shielding assembly 100 further includes a spring contact 140. The spring contact 140 includes a second fixing portion 141 and an abutting portion 142. The second fixing portion 141 is disposed on the first shielding structure 110. The abutting portion 142 of the spring contact 140 abuts against the end of the baffle 120 near the first shielding structure 110 to achieve a grounding effect.

[0069] Figure 3 A block diagram illustrating the electromagnetic filters 172, 175, transformer 174, and AC-DC converter 173 of an on-board charger according to an embodiment of this disclosure is shown. See also... Figure 1 and Figure 2 The on-board charger may also include electromagnetic filters 172 and 175, a transformer 174, and an AC / DC converter 173. Electromagnetic filter 172 is an AC electromagnetic filter, and electromagnetic filter 175 is a DC electromagnetic filter. Electromagnetic filter 172 is connected to an AC power source. Transformer 174 includes a primary winding 177 and a secondary winding 178. The AC / DC converter 173 is connected between electromagnetic filter 172 and the primary winding 177. Electromagnetic filters 172 and 175, transformer 174, and AC / DC converter 173 are all housed within a housing 200. A portion of the housing 200 (e.g., one side of the casing 200), baffle 120, and first shielding structure 110 define an accommodating space S1. Electromagnetic filter 172 is housed within this accommodating space S1. The first shielding structure 110 covers transformer 174 and is positioned between electromagnetic filter 172 and transformer 174. Transformers are interference sources and high-frequency operating devices, easily emitting electromagnetic interference to other sensitive devices, such as EMI filters. The shielding assembly 100 defines space S1 through the first shielding structure 110 and the baffle 120, allowing the electromagnetic filter 172 to be placed in space S1. Another portion of the outer casing 200 (e.g., the other side of the housing 200) and the first shielding structure 110 define a accommodating space S2, allowing the transformer 174 to be placed in space S2. The windings of the transformer 174 can pass through the channel 112 of the first shielding structure 110. The first shielding structure 110 and the baffle 120 are, for example, large-area metal layers, which can block the filter 172 and the transformer 174 to prevent electromagnetic interference emitted by the transformer 174 from affecting the operation of the electromagnetic filters 172 and 175. Furthermore, the shielding assembly 100 can enhance the shielding effect through a second shielding structure 130 located on the first shielding structure 110, and provide grounding through a spring contact 140 located on the first shielding structure 110.

[0070] Figure 4 Draw Figure 2A partially enlarged cross-sectional view of the shielding assembly 100. The shielding assembly 100 may further include a second fixing member 150 and a first fixing member 160. The second fixing member 150 can pass through the second fixing portion 141 of the spring 140 and the first shielding structure 110, so that the spring 140 is fixed to the first shielding structure 110. The first fixing member 160 can pass through the first fixing portion 132 of the second shielding structure 130 and the first shielding structure 110, so that the second shielding structure 130 is fixedly disposed on the first shielding structure 110. The first fixing portion 132 and the second fixing portion 141 may have through holes. The fixing members 150 and 160 are, for example, rivets, but are not used to limit this disclosure. Baffle 120 (see Figure 2 The end of the baffle 120 presses the contact portion 142 of the spring 140 downward to achieve the grounding function, and the end of the baffle 120 abuts against the contact portion 142 to make the shielding assembly 100 structure more stable. The upright portion 131 of the second shielding structure 130 can also improve the structural strength of the first shielding structure 110 and provide a limiting effect for the baffle 120 and the device in space S1. In this embodiment, the upright portion 131 of the second shielding structure 130 and the baffle 120 are straight, and the first fixing portion 132 of the second shielding structure 130 and the upright portion 131 are L-shaped as a whole. In addition, the contact portion 142 of the spring 140 is square, but it is not limited to this and can be determined according to the designer's needs.

[0071] It should be understood that the component connections, materials, and functions already described will not be repeated, but will be stated in the preceding text. Other types of shielding components 100 will be described in the following description.

[0072] Figure 5 A partially enlarged cross-sectional view of a shielding assembly 100 according to yet another embodiment of this disclosure is shown. In this embodiment, the structure and function of the shielding assembly 100 and the on-board charger are the same as those of... Figures 1-4 The shielding component 100 and the on-board charger shown are similar in structure and function, with identical component designations representing identical structural components and functions, which will not be described again here. Unlike Figures 1-4 The shielding assembly 100 shown in this embodiment includes a spring contact 140a and an L-shaped second shielding structure 130. This embodiment is similar to... Figure 4 The difference in the implementation method lies in that the contact portion 142a of the spring 140a is a concentric arc shape. In this way, the bottom end of the baffle 120 can abut against the arc surface of the contact portion 142a of the spring 140a to achieve the grounding function.

[0073] Figure 6 A partially enlarged cross-sectional view of a shielding assembly 100 according to another embodiment of this disclosure is shown. In this embodiment, the structure and function of the shielding assembly 100 and the on-board charger are the same as those of... Figures 1-4The shielding component 100 and the on-board charger shown are similar in structure and function, with identical component designations representing identical structural components and functions, which will not be described again here. Unlike Figures 1-4 The shielding assembly 100 shown in this embodiment includes a spring contact 140b and an L-shaped second shielding structure 130. This embodiment is similar to... Figure 4 The difference in the implementation method lies in that the contact portion 142b of the spring 140b is an eccentric arc shape. In this way, the bottom end of the baffle 120 can abut against the arc surface of the contact portion 142b of the spring 140b to achieve the grounding function.

[0074] Figure 7 A partially enlarged cross-sectional view of a shielding assembly 100 according to an embodiment of the present disclosure is shown. In this embodiment, the structure and function of the shielding assembly 100 and the on-board charger are related to... Figures 1-4 The shielding component 100 and the on-board charger shown are similar in structure and function, with identical component designations representing identical structural components and functions, which will not be described again here. Unlike Figures 1-4 The shielding assembly 100 shown in this embodiment has different fixing methods for the first shielding structure 110, the spring contact 140, and the second shielding structure 130, depending on the actual usage requirements. In this embodiment, the shielding assembly 100 also includes a first solder layer 180 and a second solder layer 181. The first solder layer 180 is disposed between the first fixing part 132 of the second shielding structure 130 and the first shielding structure 110, and the second solder layer 181 is disposed between the second fixing part 141 of the spring contact 140 and the first shielding structure 110, thereby fixing the first shielding structure 110, the spring contact 140, and the second shielding structure 130. That is, the first fixing part 132 of the second shielding structure 130 is fixed to the first shielding structure 110 by welding, and the second fixing part 141 of the spring contact 140 is fixed to the first shielding structure 110 by welding. Under severe conditions such as mechanical impact and vibration, the shielding assembly 100 can have excellent stability and electromagnetic shielding effect.

[0075] Figure 8 A cross-sectional view of a shielding assembly 100 according to an embodiment of this disclosure is shown. In this embodiment, the structure and function of the shielding assembly 100 and the on-board charger are related to... Figures 1-4 The shielding component 100 and the on-board charger shown are similar in structure and function, with identical component designations representing identical structural components and functions, which will not be described again here. Unlike Figures 1-4 The shielding component 100 shown in this embodiment Figure 8 The shielding assembly 100 includes a second shielding structure 130 but without Figure 2 The shrapnel 140 can still improve electromagnetic compatibility through the second shielding structure 130.

[0076] Figure 9 A cross-sectional view of a shielding assembly 100a according to another embodiment of this disclosure is shown. In this embodiment, the structure and function of the shielding assembly 100a and the on-board charger are the same as those of... Figures 1-4 The shielding component 100 and the on-board charger shown are similar in structure and function, with identical component designations representing identical structural components and functions, which will not be described again here. Unlike Figures 1-4 The shielding assembly 100 shown in this embodiment includes a baffle 120a and a second shielding structure 130a. In this embodiment, the baffle 120a is, for example, zigzag, and the overlapping portion of the upright portion 131a of the second shielding structure 130a with the baffle 120a is zigzag adapted to the shape of the baffle 120a, for example, an S-shape or a Z-shape. It is understood that the S-shape or Z-shape here includes both standard S-shape or Z-shape and modified S-shape or Z-shape, and this disclosure does not limit it. The upright portion 131a may be disposed adjacent to the baffle 120a, such that the upright portion 131a and the baffle 120a at least partially overlap in a first direction.

[0077] Figure 10 A cross-sectional view of a shielding assembly 100b according to another embodiment of this disclosure is shown. In this embodiment, the structure and function of the shielding assembly 100b and the on-board charger are the same as those of... Figures 1-4 The shielding component 100 and the on-board charger shown are similar in structure and function, with identical component designations representing identical structural components and functions, which will not be described again here. Unlike Figures 1-4 In this embodiment of the shielding assembly 100, the baffle 120b near the end of the first shielding structure 110 has two opposing surfaces. These opposing surfaces extend to opposite sides to form two protrusions 122b, which define a groove 123b. The upright portion 131 of the second shielding structure 130 is fitted into the groove 123b. The second shielding structure 130 can enhance the electromagnetic compatibility between the baffle 120b and the first shielding structure 110 by fitting it into the end of the baffle 120b. In this embodiment, the baffle 120b and the groove 123b are configured for fitting. The upright portion 131 of the second shielding structure 130 can extend into the groove 123b for fitting.

[0078] Figure 11 A cross-sectional view of a shielding assembly 100c according to yet another embodiment of this disclosure is shown. In this embodiment, the structure and function of the shielding assembly 100c are similar to... Figure 10 The shielding component 100b shown has a similar structure and function, with identical component numbers representing the same structural components and functions, which will not be described again here. Unlike... Figure 10The shielding assembly 100c shown in this embodiment has a baffle 120c with two opposing surfaces at its end adjacent to the first shielding structure 110. Each of the opposing surfaces is recessed inward to form a groove 123c, into which the upright portion 131 of the second shielding structure 130 can be assembled. In this embodiment, the end of the baffle 120c has a single protrusion 122c on the left and a single groove 123c on the right. The baffle 120c and the groove 123c are configured for left-fitting. The upright portion 131 of the second shielding structure 130 can extend into the groove 123c for fitting.

[0079] Figure 12 A cross-sectional view of a shielding assembly 100d according to another embodiment of this disclosure is shown. In this embodiment, the structure and function of the shielding assembly 100d are related to... Figure 11 The shielding assembly 100c shown has a similar structure and function, with identical component numbers representing the same structural components and functions, which will not be described further here. Unlike... Figure 11 The shielding assembly 100c shown in this embodiment has a baffle 120d with a single protrusion 122d on the right side and a single groove 123d on the left side at its end. The baffle 120d and the groove 123d are configured for right-fitting. The upright portion 131 of the second shielding structure 130 can extend into the groove 123d for fitting.

[0080] Figure 13 A partially enlarged cross-sectional view of a shielding assembly 100e according to an embodiment of the present disclosure is shown. In this embodiment, the structure and function of the shielding assembly 100e and the on-board charger are related to... Figures 1-4 The shielding component 100 and the on-board charger shown are similar in structure and function, with identical component designations representing identical structural components and functions, which will not be described again here. Unlike Figures 1-4 The shielding assembly 100 shown in this embodiment has a first fixing portion 132e of the second shielding structure 130e connected to the edge B of the first shielding structure 110e and formed as an integral structure 190, making the entire integral structure 190 L-shaped. In other words, the first shielding structure 110e and the second shielding structure 130e are integrally formed and have the same material. The edge B is only for illustrative purposes and there is actually no interface due to the same material. The upright portion 131e of the second shielding structure 130e is adjacent to the baffle 120 (see...). Figure 2 One side of the shielding is arranged so that it at least partially overlaps in the first direction, thereby achieving a shielding effect and increasing electromagnetic compatibility.

[0081] In summary, the design of the second shielding structure enhances the shielding effect of the baffle and strengthens the fixing effect of the first shielding structure, achieving better electromagnetic compatibility and significantly reducing electromagnetic interference from the transformer to the filter. Furthermore, since the spring contacts abut against the end of the baffle, it enhances structural strength and enables grounding. This disclosure combines shielding and grounding methods to optimize the electromagnetic compatibility of the shielding assembly. For example, according to test results, after the second shielding structure and spring contacts are implemented, the electromagnetic compatibility test results are improved by approximately 20 dB.

Claims

1. A shielding component, characterized in that, include: First shielding structure; A baffle, located on one side of the first shielding structure, wherein the baffle extends from adjacent to the first shielding structure in a first direction away from the first shielding structure; and A second shielding structure includes a first fixed part and an upright part that are interconnected, wherein the first fixed part is connected to the first shielding structure, and the upright part overlaps at least partially with the baffle in the first direction.

2. The shielding assembly as claimed in claim 1, wherein the baffle is disposed perpendicular to the first shielding structure.

3. The shielding assembly as claimed in claim 1, wherein the baffle has two opposing surfaces and a groove at one end adjacent to the first shielding structure, the two opposing surfaces extending to opposite sides to form two protrusions, the two protrusions defining the groove, and the upright portion of the second shielding structure being assembled into the groove.

4. The shielding assembly as claimed in claim 1, wherein the baffle has two opposing surfaces and a groove at one end adjacent to the first shielding structure, and either of the two opposing surfaces is recessed inward to the opposite side to form the groove, and the upright portion of the second shielding structure is assembled into the groove.

5. The shielding assembly as described in any one of claims 1-4, wherein the first fixing part, the upright part, and the baffle of the second shielding structure are all flat, and the first fixing part of the second shielding structure is arranged perpendicularly to the upright part.

6. The shielding assembly as claimed in claim 1, wherein the baffle is zigzag-shaped, and the overlapping portion of the upright portion of the second shielding structure and the baffle is zigzag-shaped to match the shape of the baffle.

7. The shielding assembly of claim 6, wherein the baffle is S-shaped or Z-shaped.

8. The shielding assembly of claim 1, wherein the first fixing portion of the second shielding structure is connected to an edge of the first shielding structure and forms an integral structure.

9. The shielding component as claimed in claim 1, further comprising: A first fixing member passes through the first fixing part of the second shielding structure and the first shielding structure, so that the second shielding structure is fixedly disposed on the first shielding structure.

10. The shielding component as claimed in claim 1, further comprising: A spring clip includes a second fixing part and an abutting part. The second fixing part is disposed on the first shielding structure, and the abutting part abuts against one end of the baffle near the first shielding structure.

11. The shielding assembly of claim 10, wherein the abutting portion of the spring is an eccentric arc shape, a concentric arc shape, or a square shape.

12. The shielding component of claim 10, further comprising: A second fixing member passes through the second fixing part of the spring and the first shielding structure, so that the spring is fixedly mounted on the first shielding structure.

13. The shielding component of claim 10, further comprising: A first solder layer is disposed between the first fixing part and the first shielding structure of the second shielding structure; as well as A second solder layer is disposed between the second fixing part of the spring and the first shielding structure.

14. An on-board charger, characterized in that, Include: The shielding component as described in any of claims 1-13; and An outer casing connected to the baffle, wherein the shielding assembly is disposed within the outer casing.

15. The on-board charger of claim 14, wherein the on-board charger further comprises: An electromagnetic filter is connected to an AC power source; A transformer, comprising a primary winding and a secondary winding; and An AC-DC converter is connected between the electromagnetic filter and the primary winding; The electromagnetic filter, the transformer, and the AC-DC converter are all housed within the housing. A portion of the housing, the baffle, and the first shielding structure define an accommodating space. The electromagnetic filter is housed within this accommodating space, and the first shielding structure covers the transformer and is positioned between the electromagnetic filter and the transformer.

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