Electrical device, power conversion system, electric drive system and vehicle

Abstract

An electrical device comprising: a housing; a circuit board mounted on the housing; a signal socket comprising a socket housing and a plurality of signal pins held by the socket housing, the socket housing being mounted on the housing, at least a portion of each signal pin being located in the socket housing, each signal pin extending from a first end to a second end, the first end being connected to the circuit board; and a shield can, the shield can being arranged to surround at least a portion of the plurality of signal pins located between the circuit board and the socket housing; wherein the shield can is provided with at least one first catch formation, the socket housing has at least one second catch formation, the second catch formation cooperating with a respective first catch formation to connect the shield can to the socket housing. A power conversion system comprising the electrical device as described above. An electric drive system comprising the electrical device as described above. A vehicle comprising the electrical device as described above or the electric drive system as described above.

Description

Technical Field

[0001] This disclosure relates to electrical apparatus, and also to power conversion systems and electric drive systems including such electrical apparatus, and to vehicles including such power conversion systems or such electric drive systems. Background Technology

[0002] With the rapid development of new energy vehicles, hybrid vehicles, especially electric vehicles, have become the mainstay of the automotive industry. Electrical devices such as power conversion systems and electric drive systems play a crucial role in the performance of electric vehicles. The normal operation of these electrical devices depends entirely on the precise signal control of the relevant systems. Pins used to transmit signals may be subject to electromagnetic interference from other components in the relevant systems, which may lead to inaccurate signal transmission, affecting the performance of the electrical devices and even causing them to malfunction. Therefore, electromagnetic interference shielding structures are incorporated into the electrical devices.

[0003] The existing technology for installing electromagnetic interference (EMI) shielding components in electrical devices has several drawbacks. Firstly, the installation of EMI shielding components in electrical devices involves complex steps and introduces other disadvantages. For example, existing technologies use welding (such as wave soldering and reflow soldering) to fix EMI shielding components, or require additional fasteners such as screws or clamps, or adhesives. These fixing methods are either not secure enough (e.g., adhesives are prone to detachment under vibration), or require tools and clearance for their operation (e.g., welding nozzles and wrenches require clearance), hindering the overall miniaturization and compactness of the electrical device. Alternatively, dedicated installation space needs to be reserved on the relevant circuit board (e.g., welding and drilling screw holes require dedicated space at the installation location on the circuit board), and circuits or electronic components cannot be placed near this location to avoid interference from welding or screw holes. These factors result in larger circuit board sizes, leading to larger overall electrical device sizes, which is detrimental to structural compactness and overall cost-effectiveness. On the other hand, existing electromagnetic interference shielding devices often fail to ensure reliable electromagnetic interference shielding effects.

[0004] Therefore, there is still a need to propose a new electrical device in which the electromagnetic interference shielding can overcome at least some of the technical problems existing in the prior art and bring other benefits. Utility Model Content

[0005] Accordingly, according to one aspect of this disclosure, an electrical device is proposed, comprising: a housing; a circuit board mounted on the housing; a signal socket including a socket housing and a plurality of signal pins held by the socket housing, the socket housing being mounted on the housing, at least a portion of each of the signal pins being located within the socket housing, each of the signal pins extending from a first end to a second end, the first end being connected to the circuit board; and a shielding cover configured to surround at least a portion of the plurality of signal pins located between the circuit board and the socket housing; wherein the shielding cover is provided with at least one first snap-fit ​​structure, and the socket housing has at least one second snap-fit ​​structure, the second snap-fit ​​structure cooperating with a corresponding first snap-fit ​​structure to connect the shielding cover to the socket housing.

[0006] Therefore, in the electrical device proposed in this disclosure, the shielding cover is configured as a portion surrounding the signal pins, at least between the circuit board and the socket housing. The shielding cover is connected to the socket housing by means of a first snap-fit ​​structure provided on the shielding cover and a second snap-fit ​​structure provided on the socket housing. This achieves reliable electromagnetic shielding of the signal pins while also allowing the shielding cover to be securely installed to the socket housing without the use of additional fasteners, without the need for additional tools, and without the need to provide clearance for installation operations. This greatly simplifies the installation of the shielding cover and allows for the avoidance of wasted space, thereby contributing to the overall miniaturization and structural compactness of the electrical device.

[0007] According to various embodiments, the electrical apparatus proposed in this disclosure may also include one or more of the following further developments.

[0008] According to some embodiments, the first snap-fit ​​structure is an engagement opening disposed in a corresponding mounting tab, and the second snap-fit ​​structure is an engagement post that engages in a corresponding engagement opening, wherein at least one of the engagement opening and the engagement post is configured to be elastically deformable. Such a first snap-fit ​​structure and a second snap-fit ​​structure are easy to manufacture and easy to operate to cooperate with each other to form a stable connection.

[0009] According to some embodiments, the mounting tab is positioned between the circuit board and the socket housing. This further facilitates a stable positioning of the shield relative to the socket housing, and this positioning of the mounting tab does not require additional space, thus contributing to overall compactness.

[0010] According to some embodiments, the shielding cover also includes at least one elastic locking structure, and the circuit board has at least one locking hole. The elastic locking structure engages with the corresponding locking hole to connect the shielding cover to the circuit board. Thus, the connection between the shielding cover and the circuit board does not require soldering or screws, thereby avoiding drilling holes in the circuit board. This allows the shielding cover to be installed in a very small area on the circuit board, enabling a more compact arrangement of electronic components, greater space utilization, and a smaller overall size of the circuit board. Consequently, the overall size of the electrical device is smaller and the structure more compact. Furthermore, the reduced difficulty in laying out electronic components on the circuit board increases the wiring density and allows for a reduction in the number of material layers on the circuit board, lowering material costs.

[0011] According to some embodiments, each of the resilient locking structures includes a first resilient locking leg and a second resilient locking leg; the first resilient locking leg has a first locking protrusion abutting against a first inner wall of a corresponding locking hole, and the second resilient locking leg has a second locking protrusion abutting against a second inner wall of a corresponding locking hole opposite to the first inner wall; wherein the first resilient locking leg and the second resilient locking leg are disposed opposite to or offset from each other. Such a resilient locking structure is easy to implement and can ensure a secure connection between the shield and the circuit board. In particular, when the first resilient locking leg and the second resilient locking leg are disposed offset from each other, the size of the locking hole on the circuit board can be further reduced.

[0012] According to some embodiments, the shielding cover has a shielding wall with at least one resilient clip provided thereon. The resilient clip is configured to abut against an abutment portion of the housing to bring the shielding cover into contact with the housing. This resilient clip allows the shielding cover to be securely installed relative to the housing without the use of additional fasteners, tools, or clearance space during installation. This further simplifies the installation of the shielding cover and avoids wasted space, thus contributing to the overall miniaturization and compactness of the electrical device. Furthermore, a contact spring allows contact with the housing to form a grounding cavity for enclosing a signal socket.

[0013] According to some embodiments, the sidewall of the housing is provided with a receiving opening for at least partially accommodating the socket housing, and the abutment portion is at least one of the opening walls of the housing that define the receiving opening. That is, the abutment portion does not need to be additionally provided on the housing, which further contributes to structural compactness, simplifies manufacturing and installation processes, and improves cost-effectiveness.

[0014] According to some embodiments, the opening wall includes a first opening wall, a second opening wall, and a third opening wall connected between the first opening wall and the second opening wall; the shielding wall is at least partially received in the receiving opening and includes the first shielding wall, the second shielding wall, and the third shielding wall connected between the first shielding wall and the second shielding wall;

[0015] Wherein: at least one of the elastic clips is provided on the portion of the first shielding wall facing the first opening wall; and / or at least one of the elastic clips is provided on the portion of the second shielding wall facing the second opening wall; and / or at least one of the elastic clips is provided on the portion of the third shielding wall facing the third opening wall. This further facilitates the secure installation of the shielding cover relative to the housing, while allowing multi-faceted contact connections between the shielding cover and the housing, providing more effective electromagnetic shielding performance.

[0016] According to some embodiments, the shielding wall further includes a fourth shielding wall connecting the first shielding wall, the second shielding wall, and the third shielding wall. This constructed shielding enclosure provides full-dimensional encapsulation of the exposed portions of the signal pins, offering reliable electromagnetic interference shielding.

[0017] According to some embodiments, the first snap-fit ​​structure and the elastic locking structure are disposed on the end side of the shielding cover away from the third shielding wall. This further promotes the overall structural compactness.

[0018] According to some embodiments, the at least one locking hole is plated with conductive metal and configured to be electrically connected to the ground wire of the circuit board, and the at least one elastic locking structure is electrically connected to the corresponding locking hole. That is, the elastic locking structure on the shielding cover and the locking hole on the circuit board have a dual function: to achieve a secure installation between the shielding cover and the circuit board, while also grounding the shielding cover, without requiring an additional grounding structure. This further promotes overall structural compactness, further reduces the number of components, and thus further simplifies manufacturing and assembly, improving cost-effectiveness.

[0019] According to some embodiments, each of the signal pins is an L-shaped signal pin.

[0020] Another aspect of this disclosure proposes a power conversion system that may include the electrical device according to any one of the above embodiments, and thus has corresponding benefits and advantages.

[0021] Another aspect of this disclosure proposes an electric drive system that may include the electrical device according to any one of the above embodiments, and thus has corresponding benefits and advantages.

[0022] This disclosure also proposes a vehicle comprising an electrical device, a power conversion system, or an electric drive system as described above. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0024] Figure 1 This is a perspective view of an electrical device according to an exemplary embodiment;

[0025] Figure 2 This is a perspective view of a portion of an electrical device according to an exemplary embodiment, showing a circuit board and a signal socket;

[0026] Figure 3 This is a perspective view of a portion of an electrical device according to an exemplary embodiment, showing a signal socket, a shield, and a portion of a circuit board connected together;

[0027] Figure 4 This is a perspective view of a portion of an electrical device according to an exemplary embodiment, showing a signal socket and a shield connected together;

[0028] Figure 5 This is a perspective view of a signal socket of an electrical device according to an exemplary embodiment;

[0029] Figure 6 This is a perspective view of a shielding cover for an electrical device according to an exemplary embodiment;

[0030] Figure 7 This is a perspective view of the housing of an electrical device according to an exemplary embodiment;

[0031] Figure 8 This is a perspective view of a portion of an electrical device according to an exemplary embodiment, wherein the circuit board has been removed;

[0032] Figure 9 This is a perspective cross-sectional view of a portion of an electrical device according to an exemplary embodiment, showing a portion of the connection structure between the shield and the housing;

[0033] Figure 10 This is another perspective cross-sectional view of a part of an electrical device according to an exemplary embodiment;

[0034] Figure 11This is yet another perspective cross-sectional view of a part of an electrical device according to an exemplary embodiment.

[0035] List of reference numerals

[0036] 10 Electrical Installations

[0037] 100 housing

[0038] 101 First Opening Wall

[0039] 102 Second Opening Wall

[0040] 103 Third Opening Wall

[0041] 110 accommodating opening

[0042] 200 circuit boards

[0043] 220 card slot

[0044] 221 First Inner Wall

[0045] 300 signal socket

[0046] 310 socket shell

[0047] 311 Second buckle structure

[0048] 320 signal pin

[0049] 321 First End

[0050] 322 Second End

[0051] 400 shielding cover

[0052] 401 First Shielding Wall

[0053] 402 Second Shielding Wall

[0054] 403 Third Shielding Wall

[0055] 404 Fourth Shielding Wall

[0056] 410 Install tabs

[0057] 411 First buckle structure

[0058] 420 elastic locking structure

[0059] 421 First Elastic Locking Leg

[0060] 422 Second Elastic Locking Leg

[0061] 423 First locking protrusion

[0062] 424 Second locking protrusion

[0063] 430 flexible cards Detailed Implementation

[0064] The electrical device 10, power conversion system, electric drive system, and vehicle according to embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions in the embodiments of this disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.

[0065] Therefore, the following detailed description of embodiments of the present disclosure provided in conjunction with the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without inventive effort are within the scope of protection of the present disclosure.

[0066] Unless the context otherwise defines, the singular form includes the plural form. Throughout this specification, the terms “comprising,” “having,” etc., are used herein to specify the presence of the stated features, numbers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof.

[0067] Furthermore, even though ordinal terms such as "first" and "second" may be used to describe various components, these components are not limited by these terms, and these terms are only used to distinguish one component from other components. For example, without departing from the scope of this disclosure, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

[0068] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the disclosed product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this disclosure and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0069] One aspect of this disclosure provides an electrical device 10. According to some embodiments, such as... Figure 1-4As shown, the proposed electrical device 10 may include a housing 100, a circuit board 200, and a signal socket 300. The circuit board 200 may be mounted on the housing 100. More specifically, a support post may be provided on the housing 100 for supporting and mounting the circuit board 200. The signal socket 300 may include a socket housing 310 and a plurality of signal pins 320 held by the socket housing 310. More specifically, a signal pin organizer may be provided in the socket housing 310 for positioning and holding the signal pins 320 relative to each other. The socket housing 310 may be mounted on the housing 100. At least a portion of each signal pin 320 is located in the socket housing 310, and each signal pin 320 extends from a first end 321 to a second end 322, the first end 321 being connected to the circuit board 200. According to some embodiments, such as Figure 1 As shown, the second end 322 of the signal pin 320 can be located in the socket housing 310 and is used to connect to an external component (not shown) to transmit control signals.

[0070] According to some embodiments, such as Figure 3-4 As shown in Figures 6, 8-11, the electrical device 10 also includes a shielding cover 400 configured to surround at least the portion of the plurality of signal pins 320 located between the circuit board 200 and the socket housing 310, to provide electromagnetic shielding for the signal pins 320. According to some embodiments, the signal pins 320 are L-shaped to accommodate available space. The shielding cover 400 may be provided with at least one first snap-fit ​​structure 411, and the socket housing 310 may have at least one second snap-fit ​​structure 311, which cooperates with a corresponding first snap-fit ​​structure 411 to connect the shielding cover 400 to the socket housing 310. According to a specific embodiment shown in the figures, the shielding cover 400 has two first snap-fit ​​structures 411, and the socket housing 310 has correspondingly two second snap-fit ​​structures 311. According to some embodiments, such as... Figure 9-11 As shown, the portion of signal pin 320 located between circuit board 200 and socket housing 310 is situated inside the housing cavity of housing 100, and is therefore susceptible to electromagnetic interference from other electrical components or electronic elements within housing 100. Accordingly, shielding cover 400 may be located at least partially within the housing cavity of housing 100 to form an electromagnetic shielding structure around the portion of signal pin 320 located within the housing cavity.

[0071] Therefore, in the electrical device 10 proposed in this disclosure, the shielding cover 400 is configured as a portion surrounding the signal pin 320 located at least between the circuit board 200 and the socket housing 310, and the shielding cover 400 is connected to the socket housing 310 by means of a first snap-fit ​​structure 411 provided on the shielding cover 400 and a second snap-fit ​​structure 311 provided on the socket housing 310. While achieving reliable electromagnetic shielding of the signal pin 320, the shielding cover 400 can also be securely installed to the socket housing 310 without the use of additional fasteners, without the need for additional tools, and without the need to provide clearance for installation operations. This greatly simplifies the installation of the shielding cover 400 and allows for the avoidance of wasted space, thereby contributing to the overall miniaturization and structural compactness of the electrical device 10.

[0072] According to some embodiments, such as Figure 3-6 and Figure 10 As shown, the first snap-fit ​​structure 411 provided on the shielding cover 400 is an engagement opening provided in the corresponding mounting tab 410. More specifically, the mounting tab 410 is integrally provided on the shielding cover 400. The second snap-fit ​​structure 311 provided on the socket housing 310 is an engagement post for engaging in the corresponding engagement opening, at least one of the engagement opening and the engagement post being elastically deformable. The first snap-fit ​​structure 411 and the second snap-fit ​​structure 311 configured in this way are easy to manufacture and easy to operate to cooperate with each other to form a secure connection. In addition, this also allows the shielding cover 400 and the socket housing 310, and therefore the signal socket 300, to be formed together as a sub-assembly, which can be used to assemble with other components, thereby making the assembly operation simpler and more feasible. More specifically, as Figure 7 The engaging opening 411 can be configured via a notch, which allows the engaging opening to elastically deform; more specifically, the notch can expand or retract. More specifically, the engaging post 311 is a cylinder, and its diameter can be larger than the width of the notch in the engaging opening 411, so that the engaging post can be pressed into the engaging opening via the deformation of the notch and stably connected within it. This installation method allows for insertion of the engaging post into the engaging opening without any clearance space.

[0073] According to some embodiments, such as Figure 3-6 and Figure 10 As shown, in the assembled state of the electrical device 10, the mounting tab 410 can be positioned between the circuit board 200 and the socket housing 310. This further facilitates the stable positioning of the shield 400 relative to the socket housing 310, and this positioning of the mounting tab 410 does not require additional space, thus contributing to overall compactness.

[0074] According to some embodiments, such as those particularly referenced Figure 6 and 11The shielding cover 400 may also be provided with at least one elastic locking structure 420, and the circuit board 200 is provided with at least one locking hole 220. The elastic locking structure 420 can cooperate with the corresponding locking hole 220 to connect the shielding cover 400 to the circuit board 200. According to some embodiments, the elastic locking structure 420 can be integrally provided on the shielding cover 400. Therefore, the connection between the shielding cover 400 and the circuit board 200 does not require soldering or the use of screws, thus avoiding drilling holes in the circuit board 200. This allows the installation of the shielding cover 400 to occupy only a very small area on the circuit board 200, thereby allowing for a more compact arrangement of electronic components on the circuit board 200, greater space utilization, and a smaller overall size of the circuit board 200. This results in a smaller overall size and more compact structure for the entire electrical device 10. Furthermore, the layout difficulty of electronic components on the circuit board 200 is reduced, increasing the wiring density of the circuit board 200 and allowing for a reduction in the number of material layers on the circuit board 200, thus reducing the material cost of the circuit board 200. In addition, this also allows the shielding cover 400 and the circuit board 200 to form a sub-assembly. More specifically, this also allows the shielding cover 400, the socket housing 310, and the signal socket 300 and circuit board 200 to be formed together as further sub-assemblies. As described above, the shielding cover 400 can first form a primary sub-assembly together with the socket housing 310, and then this primary sub-assembly can be further formed together with the circuit board 200 via the elastic locking structure 420 on the shielding cover 400 and the locking holes 200 of the circuit board 200 to form a secondary sub-assembly, such as... Figure 4 This is shown schematically. More specifically, during the formation of this secondary sub-assembly, the first end 321 of the signal pin 320 held by the socket housing 310 can be inserted into the corresponding pin hole of the circuit board 100.

[0075] According to some embodiments, such as those particularly referenced Figure 6 and 11Each resilient locking structure 420 may be configured to include a first resilient locking leg 421 and a second resilient locking leg 422. The first resilient locking leg 421 has a first locking protrusion 423 abutting against the first inner wall 221 of the corresponding locking hole 220, and the second resilient locking leg 422 has a second locking protrusion 424 abutting against the second inner wall of the corresponding locking hole 220 opposite to the first inner wall 221. According to one embodiment, the first resilient locking leg 421 and the second resilient locking leg 422 of each resilient locking structure 420 are disposed opposite to each other. Alternatively, the first resilient locking leg 421 and the second resilient locking leg 422 of each resilient locking structure 420 are disposed offset from each other. Such a resilient locking structure 420 is easy to implement and can ensure a secure connection between the shield 400 and the circuit board 200. In particular, when the first resilient locking leg 421 and the second resilient locking leg 422 are disposed offset from each other, the size of the locking hole 220 on the circuit board 200 can be further reduced. According to one specific embodiment, the width of the locking hole 220 is 1.32 mm, and the maximum outer contour width of the elastic locking structure 420 is 1.7 mm.

[0076] According to some embodiments, the snap-fit ​​holes 220 of the circuit board 200 are plated with a conductive metal such as copper or tin and are configured to be electrically connected to the ground wire of the circuit board 200. At least one elastic locking structure 420 of the shielding cover 400 can be electrically connected to the corresponding snap-fit ​​hole 220. That is, the elastic locking structure 420 on the shielding cover 400 and the snap-fit ​​holes 220 on the circuit board 200 have a dual function: to achieve a stable installation between the shielding cover 400 and the circuit board 200, and to ground the shielding cover 400 without the need for an additional grounding structure. This further promotes the overall structural compactness, further reduces the number of components, and thus further simplifies manufacturing and assembly, improving cost-effectiveness.

[0077] According to some embodiments, such as Figure 3 , 6As shown in Figures 8-10, the shielding cover 400 may be provided with shielding walls 401, 402, and 403. At least one elastic clip 430 may be provided on each of the shielding walls 401, 402, and 403. The elastic clip 430 is configured to abut against the abutment portion of the housing 100 to bring the shielding cover 400 into contact with the housing 100. According to one embodiment, the protrusion height of the elastic clip 430 relative to the respective shielding wall 401, 402, and 403 is 0.5 mm. More specifically, the contact clip 430 can contact and deform against the abutment portion of the housing 100, thereby causing the shielding cover 400 to fit tightly against the abutment portion, forming a stable and good contact. This arrangement of the elastic clip 430 allows the shielding cover 400 to be securely installed relative to the housing 100 without the use of additional fasteners, without the need for additional tools, and without requiring clearance for installation operations. This further simplifies the installation of the shielding cover 400 and avoids wasted space, thereby contributing to the overall miniaturization and compactness of the electrical device 10. Furthermore, the contact spring 430 allows contact with the housing 100 to form a grounding cavity for enclosing the signal socket 300. Additionally, this allows the aforementioned secondary sub-assemblies to be easily and securely mounted to the housing 100 using the flexible clip 430.

[0078] According to some embodiments, such as Figure 7-8 As shown, the side wall of the housing 100 may be provided with a receiving opening 110 for at least partially receiving the socket housing 310, and the abutment portion may be at least one of the opening walls of the housing 100 defining the receiving opening 110. That is, the abutment portion does not need to be additionally provided on the housing 100, which further contributes to structural compactness, simplifies manufacturing and installation processes, and improves cost-effectiveness. According to some embodiments, the opening walls of the housing 100 defining the receiving opening 110 include a first opening wall 101, a second opening wall 102, and a third opening wall 103 connected between the first opening wall 101 and the second opening wall 102. The shielding wall of the shielding cover 400 is at least partially received in the receiving opening 110 and includes a first shielding wall 401, a second shielding wall 402, and a third shielding wall 403 connected between the first shielding wall 401 and the second shielding wall 402. More specifically, the receiving opening 110 of the housing 100 is configured to be open on one side. This allows the shield 400 and the socket housing 310 to be installed in the receiving opening 110 in a simple and space-saving manner. According to some embodiments, such as Figure 3 , 6As shown in Figures 8-10, the portion of the first shielding wall 401 of the shielding cover 400 facing the first opening wall 101 is provided with at least one of the aforementioned elastic clips 430, and more specifically, a plurality of elastic clips 430 are evenly distributed. Alternatively or additionally, the portion of the second shielding wall 402 of the shielding cover facing the second opening wall 102 is provided with at least one of the aforementioned elastic clips 430, and more specifically, a plurality of elastic clips 430 are evenly distributed. Alternatively or additionally, the portion of the third shielding wall 403 of the shielding cover facing the third opening wall 103 is provided with at least one of the aforementioned elastic clips 430, and more specifically, a plurality of elastic clips 430 are evenly distributed. This further facilitates the secure mounting of the shielding cover 400 relative to the housing 100, while allowing multi-faceted contact connections between the shielding cover 400 and the housing 100, providing more effective electromagnetic shielding performance.

[0079] According to some embodiments, such as Figure 3-4 As shown in Figures 6, 8-10, the shielding wall of the shielding cover 400 also has a fourth shielding wall 404 connecting the first shielding wall 401, the second shielding wall 402, and the third shielding wall 403. This configuration of the shielding cover 400 achieves full-dimensional encapsulation of the exposed portion of the signal pin 320, providing reliable electromagnetic interference shielding. More specifically, this configuration of the shielding cover 400 allows full-dimensional encapsulation of the portion of the signal pin 320 located between the circuit board 200 and the socket housing 310, while also allowing full contact with the housing 100 to form a grounding cavity for enclosing the signal socket 300. According to one specific embodiment, as... Figure 6 As shown, the first shielding wall 401, the second shielding wall 402, and the third shielding wall 403 of the shielding cover 400 form a U-shaped cover portion, wherein the third shielding wall 403 forms the bottom wall of the U-shaped cover portion, and the first shielding wall 401 and the second shielding wall 402 respectively form the two leg walls of the U-shaped cover portion. According to some embodiments, such as... Figure 6 As shown, the fourth shielding wall 404 of the shielding cover 400 further seals one side opening of the U-shaped cover portion.

[0080] According to some embodiments, such as Figure 2 , 5As shown in Figures 9-10, signal pin 320 has an L-shaped structure. More specifically, signal pin 320 has a first segment with a first end 321 and a second segment with a second end 322. The first shielding wall 401 and the second shielding wall 402 of the shielding cover 400 abut against the socket housing 310 on both sides, and all signal pins 320 are positioned laterally against the first shielding wall 401 and the second shielding wall 402. The third shielding wall 403 of the shielding cover 400 covers all signal pins 320 on its bottom side, and more specifically, at least covers the portion of the signal pins 320 located between the circuit board 200 and the socket housing 310, including the L-shaped connection portion of the signal pins 320. The fourth shielding wall 404 of the shielding cover 400, opposite to the socket housing 310, surrounds the portion of the signal pins 320 located between the circuit board 100 and the socket housing 310 on its rear side. Thus, the shield 400 fully encloses the portion of the signal pin 320 located between the circuit board 200 and the socket housing 310, forming a reliable and effective electromagnetic shield.

[0081] According to some embodiments, such as Figure 6 As shown, the first snap-fit ​​structure 411 and the elastic locking structure 420 of the shield 400 are disposed on the end side of the shield 400 away from the third shield wall 403. This further promotes the overall structural compactness.

[0082] According to another aspect of this disclosure, a power conversion system is proposed, which includes the electrical device 10 according to any one of the foregoing embodiments, and thus possesses the associated technical advantages.

[0083] According to another aspect of this disclosure, an electric drive system is proposed, which includes the electrical device 10 according to any one of the foregoing embodiments, and thus possesses the associated technical advantages.

[0084] According to another aspect of this disclosure, a vehicle is proposed that includes an electrical device 10 according to any one of the foregoing embodiments, or a power conversion system or an electric drive system as described above. The vehicle may be an electrified vehicle, such as a battery electric vehicle (BEV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle (PHEV), a range-extended electric vehicle (REV), or a fuel cell electric vehicle (FCEV). The vehicle may also be a hydrogen fuel cell vehicle.

[0085] The foregoing description, with reference to preferred embodiments, details exemplary implementations of the electrical device, power conversion system, electric drive system, and vehicle proposed by this utility model. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of this utility model, and various combinations can be made to the various technical features and structures proposed by this utility model without exceeding the protection scope of this utility model.

[0086] The scope of this disclosure is not limited by the embodiments described above, but by the appended claims and their equivalents.

Claims

1. An electrical device, characterized in that, The electrical device (10) includes: Casing (100); A circuit board (200) is mounted on the housing (100); A signal socket (300) includes a socket housing (310) and a plurality of signal pins (320) held by the socket housing (310), the socket housing (310) being mounted on a housing (100), at least a portion of each of the signal pins (320) being located within the socket housing (310), each of the signal pins (320) extending from a first end (321) to a second end (322), the first end (321) being connected to the circuit board (200); and A shield (400) is configured to surround the plurality of signal pins (320) at least in the portion between the circuit board (200) and the socket housing (310); The shielding cover (400) is provided with at least one first snap-fit ​​structure (411), and the socket housing (310) has at least one second snap-fit ​​structure (311). The second snap-fit ​​structure (311) cooperates with the corresponding first snap-fit ​​structure (411) to connect the shielding cover (400) to the socket housing (310).

2. The electrical device according to claim 1, characterized in that, The first snap-fit ​​structure (411) is a snap-fit ​​opening provided in the corresponding mounting tab (410), and the second snap-fit ​​structure (311) is a snap-fit ​​post that snaps into the corresponding snap-fit ​​opening. At least one of the snap-fit ​​opening and the snap-fit ​​post is configured to be elastically deformable.

3. The electrical device according to claim 2, characterized in that, The mounting tab (410) is positioned between the circuit board (200) and the socket housing (310).

4. The electrical device according to any one of claims 2 or 3, characterized in that, The shield (400) is also provided with at least one elastic locking structure (420). The circuit board (200) is provided with at least one card hole (220). The elastic locking structure (420) cooperates with the corresponding locking hole (220) to connect the shield (400) to the circuit board (200).

5. The electrical device according to claim 4, characterized in that, Each of the aforementioned elastic locking structures (420) includes a first elastic locking leg (421) and a second elastic locking leg (422); The first elastic locking leg (421) has a first locking protrusion (423) that abuts against the first inner wall (221) of the corresponding locking hole (220), and the second elastic locking leg (422) has a second locking protrusion (424) that abuts against the second inner wall of the corresponding locking hole (220) opposite to the first inner wall (221). The first elastic locking leg (421) and the second elastic locking leg (422) are arranged opposite to each other or offset from each other.

6. The electrical device according to claim 5, characterized in that, The shield (400) has a shielding wall on which at least one elastic card (430) is provided. The elastic card (430) is configured to abut against the housing (100) to make the shield (400) contact the housing (100).

7. The electrical device according to claim 6, characterized in that, The housing (100) has a receiving opening (110) on its side wall for at least partially receiving the socket housing (310), and the abutment is at least one of the opening walls of the housing (100) that define the receiving opening (110).

8. The electrical device according to claim 7, characterized in that, The opening wall includes a first opening wall (101), a second opening wall (102), and a third opening wall (103) connected between the first opening wall (101) and the second opening wall (102). The shielding wall is at least partially received in the receiving opening (110) and includes a first shielding wall (401), a second shielding wall (402) and a third shielding wall (403) connected between the first shielding wall (401) and the second shielding wall (402). in: At least one of the elastic cards (430) is provided on the portion of the first shielding wall (401) facing the first opening wall (101); and / or The portion of the second shielding wall (402) facing the second opening wall (102) is provided with at least one of the elastic cards (430); and / or At least one of the elastic cards (430) is provided on the portion of the third shielding wall (403) facing the third opening wall (103).

9. The electrical device according to claim 8, characterized in that, The shielding wall also has a fourth shielding wall (404) that connects the first shielding wall (401), the second shielding wall (402) and the third shielding wall (403).

10. The electrical device according to claim 8, characterized in that, The first snap-fit ​​structure (411) and the elastic locking structure (420) are disposed on the end side of the shield (400) away from the third shield wall (403).

11. The electrical device according to claim 4, characterized in that, The at least one card hole (220) is plated with conductive metal and is configured to be electrically connected to the ground wire of the circuit board (200), and the at least one elastic locking structure (420) is electrically connected to the corresponding card hole (220).

12. The electrical device according to claim 9, characterized in that, Each of the signal pins (320) is an L-shaped signal pin.

13. A power conversion system, characterized in that, The power conversion system includes an electrical device (10) according to any one of claims 1 to 12.

14. An electric drive system, characterized in that, Includes the electrical device (10) according to any one of claims 1 to 12.

15. A vehicle, characterized in that, Includes the electrical device (10) according to any one of claims 1 to 12, the power conversion system according to claim 13, or the electric drive system according to claim 14.

Images