Vehicle-mounted display screen assembly, central control mechanism and vehicle

Abstract

The utility model discloses a vehicle-mounted display screen assembly, a central control mechanism and a vehicle, the vehicle-mounted display screen assembly comprises a front shell, a rear shell and a display module, the display module is installed on the front shell, the rear shell is connected with the front shell, the connecting side wall of one of the front shell and the rear shell is a first side wall, the connecting side wall of the other one of the front shell and the rear shell is a second side wall, a clamping groove is formed in the first side wall, and the second side wall is inserted into the clamping groove, so that the front shell and the rear shell are mutually limited.

Description

Technical Field

[0001] This disclosure relates to the field of display screen installation, and more specifically, to a vehicle-mounted display screen assembly, a central control mechanism, and a vehicle. Background Technology

[0002] In-vehicle display components are key parts of the vehicle's central control system. These components typically consist of a front housing, a rear housing, and a display module, occupying a significant amount of space. This makes the rational layout of in-vehicle display components within the vehicle more challenging. In some related technologies, display components are placed between seats. However, in pursuit of larger and more comfortable seats, the space reserved between seats is often limited, posing a certain difficulty in installing the display components. Utility Model Content

[0003] The purpose of this disclosure is to provide an in-vehicle display assembly, a central control mechanism, and a vehicle to at least partially solve the problems existing in the related art.

[0004] To achieve the above objectives, this disclosure provides an in-vehicle display assembly, including a front shell, a rear shell, and a display module. The display module is mounted on the front shell, and the rear shell is connected to the front shell. One of the front shell and the rear shell has a first sidewall, and the other has a second sidewall. The first sidewall has a locking groove, and the second sidewall is inserted into the locking groove to limit the mutual positioning of the front shell and the rear shell.

[0005] Optionally, the locking groove includes a first stop wall and a second stop wall that are disposed opposite to each other along a first direction and both extend along a second direction. The second side wall is inserted into the locking groove and its two sides are respectively attached to the first stop wall and the second stop wall. The first direction is the direction perpendicular to the corresponding side wall, and the second direction is the installation direction of the front shell and the rear shell.

[0006] Optionally, the first sidewall includes a connecting outer edge and a protruding rib extending inward from the connecting outer edge, with the locking groove formed at the end of the protruding rib.

[0007] Optionally, the vehicle display assembly includes a circuit board, and a limiting wall is formed on the side of the rib away from the connecting outer edge, and the outer edge of the circuit board is limited by the limiting wall.

[0008] Optionally, there are multiple ribs, and the ribs are provided on at least two opposite sidewalls of the first sidewall. The circuit board is disposed in the area restricted by the limiting wall surface of the multiple ribs.

[0009] Optionally, the vehicle display assembly includes a circuit board electrically connected to the display module and disposed between the front housing and the rear housing.

[0010] Optionally, a mounting hole extending along the second direction is formed on the front or rear shell, the wall of the mounting hole is formed by a hollow mounting hole post, one end of the mounting hole post is constructed with a cut surface, and the outer edge of the circuit board is limited by the cut surface.

[0011] Optionally, a first positioning post extending along the second direction is formed on the front shell or the rear shell, and a first positioning hole is formed on the circuit board, wherein the first positioning hole and the first positioning post are in circumferential contact.

[0012] Optionally, a second positioning post extending along the second direction is formed on the front shell or the rear shell, the first positioning post and the second positioning post are spaced apart, a second positioning hole is formed on the circuit board, the second positioning hole is inserted into the second positioning post, and the second positioning post contacts the second positioning hole at least on a pair of opposite sides.

[0013] Optionally, the second positioning post and the second positioning hole are configured such that: in a third direction connecting the first positioning post and the second positioning post, the second positioning post and the second positioning hole are spaced apart, and in a fourth direction perpendicular to the third direction, the second positioning post and the second positioning hole are in contact.

[0014] Optionally, a support rib protruding along the second direction is formed on the front shell or the rear shell, and the circuit board is supported on the support rib.

[0015] Optionally, the number of the support ribs is at least two, and at least two of the support ribs are configured to be non-collinear.

[0016] Optionally, a first buffer is attached between the circuit board and the front cover.

[0017] Optionally, the circuit board is provided with connecting lines that pass through the front shell to connect with the display module. The first buffer is disposed in the corresponding area where the circuit board connects with the connecting lines and is in contact with a conductive structure on the side facing away from the circuit board. The first buffer is configured to be conductive.

[0018] Optionally, a second buffer is attached between the circuit board and the rear cover.

[0019] Optionally, a third buffer is attached between the display module and the front shell.

[0020] Optionally, the display module is connected to the front housing via stepped screws, and the front housing has mounting holes for the stepped screws to pass through.

[0021] Optionally, a threaded post is formed on the display module, the wall of the mounting hole is formed by a hollow mounting post, and the mounting post and the threaded post are coaxially arranged. The stepped screw includes an end section, a threaded section, and a stepped stage disposed between the end section and the threaded section. A radially extending boss is formed on the inner wall of the mounting post. The end section is disposed on the side of the boss facing away from the threaded post. The end of the stepped stage away from the end section abuts against the end of the threaded post. The threaded section is screwed to the threaded post.

[0022] Optionally, a sealant is provided at the gap between the end segment and the boss.

[0023] According to a second aspect of the present disclosure, a central control mechanism is provided, including the vehicle display assembly provided in this disclosure.

[0024] According to a third aspect of the present disclosure, a vehicle is provided, including a central control mechanism or vehicle display assembly provided in the present disclosure.

[0025] The above technical solution involves setting a locking groove at the connecting sidewall of the front and rear shells of the vehicle display assembly. This allows one sidewall to be stopped by the two stop surfaces of the locking groove, thereby limiting the relative displacement of the front and rear shells in the stopping direction of the stop surfaces. This design allows the limiting of both sides of the sidewall to be achieved through a single locking groove, resulting in a compact structural layout, small space occupation, and thus a smaller display assembly size. Furthermore, the locking groove, located at the sidewall, effectively utilizes the space connecting the sidewall without occupying internal space, thus avoiding increasing the overall size of the display assembly.

[0026] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is an exploded view of an in-vehicle display assembly provided according to an exemplary embodiment.

[0029] Figure 2 This is a cross-sectional view of an in-vehicle display assembly provided according to an exemplary embodiment.

[0030] Figure 3 This is a schematic diagram of the mating area between the front and rear shells of an in-vehicle display assembly according to an exemplary embodiment.

[0031] Figure 4This is a schematic diagram of the rear view of the front shell according to an exemplary embodiment.

[0032] Figure 5 This is a schematic diagram of a circuit board mounted behind the front housing according to an exemplary embodiment.

[0033] Figure 6 This is a cross-sectional view of the connection between the display module and the front shell according to an exemplary embodiment.

[0034] Figure 7 This is a schematic diagram of the positioning of a circuit board according to an exemplary embodiment.

[0035] Figure 8 This is a rear view of an in-vehicle display assembly provided according to an exemplary embodiment.

[0036] Explanation of reference numerals in the attached figures

[0037] 10-Front shell, 11-First sidewall, 111-Connecting outer edge, 112-Protruding rib, 1121-Limiting wall surface, 12-Locking groove, 121-First stop wall surface, 122-Second stop wall surface, 13-Mounting hole, 131-Mounting hole post, 1311-Cut surface, 1312-Boss, 14-First positioning post, 15-Second positioning post, 16-Supporting rib, 20-Rear shell, 21-Second sidewall, 30-Display module, 31-Threaded post, 40-Circuit board, 41-First positioning hole, 42-Second positioning hole, 43-Connecting wire, 51-First buffer, 52-Second buffer, 53-Third buffer, 60-Step screw, 61-End section, 62-Threaded section, 63-Step, 71-First fastener, 72-Second fastener. Detailed Implementation

[0038] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0039] In this disclosure, unless otherwise stated, directional terms such as "front" and "rear" are generally defined according to the orientation of the vehicle display assembly, with the side facing the user defined as front and the opposite side as rear. For example, see reference to Figure 1 The direction indicated by the arrow is the mounting direction of the front and rear shells. "Inner" and "outer" refer to the inner and outer contours of the corresponding components themselves. "First" and "Second" are used to distinguish one component from another and do not indicate sequence or importance.

[0040] The in-vehicle display screen assembly is a key component of the vehicle's central control system. It typically comprises a front housing, a rear housing, and a display module, occupying a significant amount of space. This makes the rational layout of the in-vehicle display screen assembly within the vehicle more challenging. For example, some display screen assemblies are located between seats. In pursuit of larger and more comfortable seats, the space reserved between seats is often limited, creating difficulties for the installation of the display screen assembly. Some technical solutions employ multiple limiting and fixing points in the installation of the front and rear housings, occupying considerable space and resulting in larger dimensions for both the front and rear housings.

[0041] To address the aforementioned problems, a first aspect of this disclosure provides an in-vehicle display assembly, referring to... Figure 1 and Figure 8 The vehicle-mounted display assembly includes a front housing 10, a rear housing 20, and a display module 30. The display module 30 may include a display screen, a mounting panel, and electrical components, and can be a pre-fabricated integrated module. The display module 30 is mounted on the front housing 10, and the rear housing 20 is connected to the front housing 10. A receiving cavity can be formed between the front housing 10 and the rear housing 20 to accommodate part of the display module 30 and other electrical components, thus protecting the internal structure of the display assembly. The connecting sidewall of one of the front housing 10 and the rear housing 20 is a first sidewall 11, and the connecting sidewall of the other is a second sidewall 21. Here, the connecting sidewall refers to the sidewall at the connection point between the front housing 10 and the rear housing 20, such as... Figure 1 As shown, the size of the rear shell 20 is smaller than that of the front shell 10. The connecting sidewall of the rear shell 20 is the wall located at its outermost edge. The connecting sidewall of the front shell 10 refers to the connecting wall at the location where its size matches that of the rear shell. This connecting sidewall of the front shell 10 may not be located at the outline edge of its overall structure, but rather at the outline edge where it connects with the rear shell 20. In this embodiment, the example of the connecting sidewall of the front shell 10 being the first sidewall 11 and the connecting sidewall of the rear shell 20 being the second sidewall 21 can be used for illustration, but it should be understood that the reverse is also possible. The rear shell 20 can be made of plastic or sheet metal to further save costs and reduce weight.

[0042] Among them, reference Figure 2 and combined Figure 3 The first sidewall 11 has a locking groove 12, and the second sidewall 21 is inserted into the locking groove 12 so that the front shell 10 and the rear shell 20 can be mutually restrained. That is, the sidewall of the locking groove 12 can stop the second sidewall 21, thereby achieving mutual restraint.

[0043] Through the above technical solution, a locking groove 12 is provided at the connecting side wall of the front shell 10 and the rear shell 20 of the vehicle display assembly, so that one side wall can be stopped by the two stop surfaces of the locking groove 12, thereby limiting the relative displacement of the front shell 10 and the rear shell 20 in the stopping direction of the stop surfaces. This arrangement allows the limiting of both sides of the side wall to be achieved by a locking groove 12, resulting in a compact structural layout, small space occupation, and thus a smaller display assembly size. Furthermore, the limiting locking groove 12 is located at the side wall, which can effectively utilize the space of the connecting side wall without occupying internal space, thereby not increasing the overall size of the display assembly.

[0044] The locking groove 12 includes a first stop wall surface 121 and a second stop wall surface 122 that are arranged opposite each other along a first direction and both extend along a second direction. The second side wall 21 is inserted into the locking groove 12 and its two sides are respectively attached to the first stop wall surface 121 and the second stop wall surface 122. Here, the first direction is the direction perpendicular to the corresponding side wall. For example, when the front shell 10 and the rear shell 20 are roughly rectangular, the front shell 10 and the rear shell 20 can be understood as being surrounded by two transverse side walls and two longitudinal side walls, respectively. At the transverse side walls, the first direction is longitudinal, that is, the first stop wall surface 121 and the second stop wall surface 122 are arranged opposite each other longitudinally. At the longitudinal side walls, the first direction is transverse, and the first stop wall surface 121 and the second stop wall surface 122 are arranged opposite each other transversely. The second direction is the installation direction of the front shell 10 and the rear shell 20. By setting such relatively arranged stop walls, the second side wall 21 can be limited and stopped in the direction perpendicular to the corresponding side wall, thereby restricting the relative movement of the front shell 10 and the rear shell 20 in a plane perpendicular to the front-rear direction. Figure 8 Taking the drawing direction as an example, the stop wall can limit the relative displacement of the front shell 10 and the rear shell 20 in the vertical and horizontal directions of the drawing. The limiting of the front shell 10 and the rear shell 20 in their installation direction can be achieved by the second fastener 72.

[0045] Reference Figure 3 and Figure 4 The first sidewall 11 may include a connecting outer edge 111 and a rib 112 extending inward from the connecting outer edge 111, the rib 112 serving a reinforcing function. For example, the rib 112 may be formed on the front housing 10, which is used to mount the display module 30 and the rear housing 20; therefore, by providing the rib 112, sufficient strength of the front housing 10 can be ensured. When the rib 112 is present, a locking groove 12 may be formed at the end of the rib 112. When the rib 112 is formed on the front housing 10, the locking groove 12 may be formed at the rear end of the rib 112 to mate with the connecting sidewall of the rear housing 20. Forming the locking groove 12 on the rib 112 allows the feature with the reinforcing structure to share the same space with the feature used for limiting, making the layout more compact and further reducing the size of the display assembly.

[0046] In this embodiment of the disclosure, reference is made to Figure 1 The vehicle-mounted display assembly may include a circuit board 40, which is disposed between the front housing 10 and the rear housing 20, specifically within the cavity enclosed by the front housing 10 and the rear housing 20. The circuit board 40 is electrically connected to the display module 30 for signal transmission.

[0047] When the above-mentioned rib 112 is present, refer to Figure 3 As shown, a limiting wall 1121 can be formed on the side of the rib 112 away from the connecting outer edge 111. The outer edge of the circuit board 40 can be limited by the limiting wall 1121, thereby limiting the mounting area of ​​the circuit board 40. There can be a small gap between the circuit board 40 and the limiting wall 1121, such as a 1mm gap, to ensure that the circuit board 40 can be installed smoothly. In this embodiment, the rib 112 used for reinforcing the structure, the locking groove 12 used for limiting the front shell 10 and the rear shell 20, and the limiting wall 1121 used for limiting the circuit board 40 are all implemented through a shared structure, so that the dimensions of the front shell 10 and the rear shell 20 can be maximized, thereby solving the problem of difficult installation of the display assembly due to limited interior space.

[0048] Reference Figure 4 and Figure 5 The number of ribs 112 can be multiple, with ribs 112 provided on at least two opposite sidewalls of the first sidewall 11. The circuit board 40 is disposed within the area defined by the limiting wall surfaces 1121 of the multiple ribs 112. For example, in Figure 5 In the illustrated direction, multiple ribs 112 can be disposed on the first sidewall 11 in the vertical direction to limit the vertical limiting area of ​​the circuit board 40. In other embodiments, the ribs 112 can also be disposed on... Figure 5 The left and right restricted areas of the circuit board 40 are defined by the left and right directions of the drawing.

[0049] In some embodiments, a mounting hole 13 extending in a second direction is formed on the front housing 10 or the rear housing 20, for example, referring to... Figure 4 and Figure 5 Mounting holes 13 can be formed on the front housing 10. These mounting holes 13 serve as connection structures between the front housing 10 and other structures, such as the display module 30. (See reference...) Figure 6The wall of the mounting hole 13 can be formed by a hollow mounting hole post 131. One end of the mounting hole post 131 has a cut surface 1311, and the outer edge of the circuit board 40 is limited by the cut surface 1311. The mounting hole post 131 can be constructed as a cylindrical hollow structure extending in the second direction to serve as a post for fasteners passing through the mounting hole 13. A portion of the mounting hole post 131 can be cut so as not to affect the installation of the fasteners, and the cut surface 1311 can serve as a limiting structure for the circuit board 40. The cut surface 1311 can be provided on one side of the circuit board 40, and the other sides of the circuit board 40 can be provided with the aforementioned protruding ribs 112 for limiting. In this embodiment, the limiting of the circuit board 40 is achieved by the circumferential mounting hole post 131 of the mounting hole 13, without the need for a separate limiting structure. The position of the mounting hole 13 does not need to be moved outward to avoid the circuit board 40, effectively simplifying the size of the display assembly, making the internal structure of the display assembly as shared as possible, and making the layout more compact.

[0050] When the circuit board 40 is limited by the aforementioned ribs 112 or mounting post 131, a small gap is reserved between the edge of the circuit board 40 and these limiting structures for ease of installation. During vehicle operation, the vibration of the display assembly may cause the circuit board 40 to impact these limiting structures, resulting in the electrical components on the circuit board 40 becoming loose or even disconnected, affecting the use of the display assembly. Therefore, this embodiment further provides a positioning structure for the circuit board 40. Specifically, a first positioning post 14 extending in the second direction can be formed on the front shell 10 or the rear shell 20, and a first positioning hole 41 is formed on the circuit board 40. The first positioning hole 41 circumferentially contacts and engages with the first positioning post 14. The first positioning hole 41 of the circuit board 40 can be fitted around the outer periphery of the first positioning post 14, and the contact with the first positioning post 14 restricts the displacement of the circuit board 40 in a plane perpendicular to the second direction. Figure 5 In the planar direction shown, the circuit board 40 will not produce linear displacement under the constraint of the first positioning post 14.

[0051] Furthermore, a second positioning post 15 extending in the second direction can be formed on the front shell 10 or the rear shell 20. The first positioning post 14 and the second positioning post 15 can be spaced apart. A second positioning hole 42 can be formed on the circuit board 40. The second positioning hole 42 and the second positioning post 15 are inserted into each other, and the second positioning post 15 contacts the second positioning hole 42 at least on a pair of opposite sides. When the first positioning post 14 is used to limit the linear displacement of the circuit board 40 in the plane, the circuit board 40 may also rotate in the plane, such as rotating around the first positioning post 14. Therefore, in this embodiment of the present disclosure, a second positioning post 15 is provided, and at least a pair of opposite sides of the second positioning post 15 contact the second positioning hole 42. Through this limiting and the limiting of one circumference of the first positioning post 14, the rotation and linear displacement of the circuit board 40 in its plane can be realized.

[0052] Reference Figure 7 In one embodiment, the second positioning post 15 and the second positioning hole 42 are configured such that, in a third direction connecting the first positioning post 14 and the second positioning post 15, the second positioning post 15 and the second positioning hole 42 are spaced apart. Specifically, the outer edge of the second positioning post 15 and the inner edge of the second positioning hole 42 are spaced apart, and in a fourth direction perpendicular to the third direction, the second positioning post 15 and the second positioning hole 42 are in contact. The third direction can be understood as the radial direction of a circle centered on the first positioning post 14, and the fourth direction can be understood as the tangential direction perpendicular to the radial direction. Restricting the contact between the second positioning post 15 and the second positioning hole 42 in the fourth direction can precisely restrict the rotation of the circuit board 40 around the first positioning post 14. Furthermore, the spaced distance between the second positioning post 15 and the second positioning hole 42 in the first direction facilitates the installation of the circuit board, avoiding excessively tight positioning and repeated positioning that would prevent the circuit board 40 from being installed on the second positioning post 15 after being installed on the first positioning post 14.

[0053] Reference Figure 4 A support rib 16 protruding along the second direction can be formed on the front shell 10 or the rear shell 20. The circuit board 40 is supported on the support rib 16, which provides unilateral support and limitation for the circuit board 40 in the second direction. Compared to a support surface, the support rib 16 avoids the problem of inaccurate support and limitation of the circuit board 40 due to the difficulty in ensuring the flatness of the surface. Bilateral limitation in the second direction can be achieved through the support rib 16 and the first fastener installed along the second direction.

[0054] The number of support ribs 16 is at least two, and at least two support ribs 16 are configured to be non-collinear, so as to form a surface through multiple support ribs 16, thereby ensuring the stability of the circuit board 40.

[0055] During vehicle operation, the circuit board 40 in the display assembly will inevitably vibrate, especially under poor vehicle conditions. To prevent the connected electrical components from failing due to the vibration of the circuit board 40, a first buffer 51 can be attached between the circuit board 40 and the front housing 10 to cushion and reduce vibration when the circuit board 40 vibrates. The first buffer 51 can be made of foam.

[0056] In this embodiment, a connecting line 43 may be provided on the circuit board 40. The connecting line 43 passes through the front shell 10 to connect with the display module 30 for signal transmission. A first buffer 51 may be provided in the corresponding area where the circuit board 40 connects with the connecting line 43 to protect the connection point. The first buffer 51 may be fixed by adhesive bonding. The side of the first buffer 51 facing away from the circuit board 40 may contact a conductive structure, such as a conductive structure on the display module 30 or a conductive structure on the front shell 10. The first buffer 51 is configured to be conductive, so that the first buffer 51 is electrically connected between the copper leakage area of ​​the circuit board 40 and the conductive structure on the other side, thereby releasing static electricity from the circuit board 40 and preventing damage to the electrical components on the circuit board 40.

[0057] A second buffer 52 can be attached between the circuit board 40 and the rear cover 20 to buffer and absorb vibration, thereby protecting the circuit board 40. The second buffer 52 can be made of foam.

[0058] In this embodiment, a third buffer 53 may be attached between the display module 30 and the front shell 10 to provide cushioning and vibration absorption. The third buffer 53 may be made of foam. The first buffer 51, the second buffer 52, and the third buffer 53 may all be configured as foam adhesive to absorb vibration and dampen shock, while also bonding components to make the connection more stable.

[0059] Reference Figure 1 and Figures 4 to 6 The display module 30 and the front shell 10 can be connected by stepped screws 60. The front shell 10 has mounting holes 13 for the stepped screws 60 to pass through.

[0060] Specifically, a threaded post 31 can be formed on the display module 30. The wall of the mounting hole 13 is formed by the hollow mounting post 131, and the mounting post 131 and the threaded post 31 are coaxially arranged. The stepped screw 60 may include an end section 61, a threaded section 62, and a stepped platform 63 disposed between the two. The threaded section 62 can be screwed to the threaded post 31. A radially inwardly extending boss 1312 can be formed inside the mounting post 131. The end section 61 of the stepped screw 60 is used to be disposed on the side of the boss 1312 facing away from the threaded post 31, and the stepped platform 63 is used to abut against the end of the threaded post 31. When vibration causes the display module 30 to shift backward, the stepped platform 63 can abut against it in the opposite direction. When vibration causes the display module 30 to shift forward, the boss 1312 can abut against it in the opposite direction.

[0061] The gap between the boss 1312 and the end section 61 of the stepped screw 60 is filled with sealant, for example, by potting. Since a gap needs to be reserved during installation to facilitate installation and avoid difficulties caused by manufacturing tolerances, sealant can be poured into this gap to resist vibration and impact during transportation. At the same time, it can avoid the installation interference caused by design principles and manufacturing errors, making the display assembly more stable and reliable.

[0062] According to a second aspect of the present disclosure, a central control mechanism is provided, including the above-described vehicle display screen assembly, and having all the beneficial effects of the above-described vehicle display screen, which will not be repeated here.

[0063] According to a third aspect of the present disclosure, a vehicle is provided that includes the aforementioned central control mechanism and has all the beneficial effects of the aforementioned central control mechanism, which will not be repeated here.

[0064] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0065] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0066] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A vehicle-mounted display screen assembly, characterized in that, The device includes a front shell, a rear shell, and a display module. The display module is mounted on the front shell, and the rear shell is connected to the front shell. One of the front shell and the rear shell has a first side wall, and the other has a second side wall. The first side wall has a locking groove, and the second side wall is inserted into the locking groove to limit the front shell and the rear shell to each other.

2. The vehicle-mounted display screen assembly according to claim 1, characterized in that, The locking groove includes a first stop wall and a second stop wall that are arranged opposite to each other along a first direction and both extend along a second direction. The second side wall is inserted into the locking groove and its two sides are respectively attached to the first stop wall and the second stop wall. The first direction is the direction perpendicular to the corresponding side wall, and the second direction is the installation direction of the front shell and the rear shell.

3. The vehicle-mounted display screen assembly according to claim 1, characterized in that, The first sidewall includes a connecting outer edge and a protruding rib extending inward from the connecting outer edge, and the locking groove is formed at the end of the protruding rib.

4. The vehicle-mounted display screen assembly according to claim 3, characterized in that, The vehicle display assembly includes a circuit board, and a limiting wall is formed on the side of the rib away from the connecting outer edge, and the outer edge of the circuit board is limited by the limiting wall.

5. The vehicle-mounted display screen assembly according to claim 4, characterized in that, The number of ribs is multiple, and the ribs are provided on at least two opposite sidewalls of the first sidewall. The circuit board is disposed in the area restricted by the limiting wall surface of the multiple ribs.

6. The vehicle-mounted display assembly according to claim 1, characterized in that, The vehicle display assembly includes a circuit board, which is electrically connected to the display module and is disposed between the front shell and the rear shell.

7. The vehicle-mounted display assembly according to claim 6, characterized in that, The front or rear shell has a mounting hole extending in a second direction. The wall of the mounting hole is formed by a hollow mounting hole post. One end of the mounting hole post has a cut surface, and the outer edge of the circuit board is limited by the cut surface.

8. The vehicle-mounted display assembly according to claim 6, characterized in that, A first positioning post extending in a second direction is formed on the front shell or the rear shell, and a first positioning hole is formed on the circuit board, wherein the first positioning hole and the first positioning post are in circumferential contact.

9. The vehicle-mounted display screen assembly according to claim 8, characterized in that, A second positioning post extending along the second direction is formed on the front shell or the rear shell. The first positioning post and the second positioning post are spaced apart. A second positioning hole is formed on the circuit board. The second positioning hole is inserted into the second positioning post, and the second positioning post contacts the second positioning hole at least on a pair of opposite sides.

10. The vehicle-mounted display assembly according to claim 9, characterized in that, The second positioning post and the second positioning hole are configured such that: in a third direction on the line connecting the first positioning post and the second positioning post, the second positioning post and the second positioning hole are spaced apart, and in a fourth direction perpendicular to the third direction, the second positioning post and the second positioning hole are in contact.

11. The vehicle-mounted display assembly according to claim 6, characterized in that, A support rib protruding in a second direction is formed on the front shell or the rear shell, and the circuit board is supported on the support rib.

12. The vehicle-mounted display assembly according to claim 11, characterized in that, The number of support ribs is at least two, and at least two of the support ribs are configured to be non-collinear.

13. The vehicle-mounted display assembly according to claim 6, characterized in that, A first buffer is attached between the circuit board and the front cover.

14. The vehicle-mounted display assembly according to claim 13, characterized in that, The circuit board is provided with connecting lines that pass through the front shell to connect with the display module. The first buffer is disposed in the corresponding area where the circuit board connects with the connecting lines and is in contact with a conductive structure on the side facing away from the circuit board. The first buffer is configured to be conductive.

15. The vehicle-mounted display assembly according to claim 6, characterized in that, A second buffer is attached between the circuit board and the rear cover.

16. The vehicle-mounted display assembly according to claim 1, characterized in that, A third buffer is attached between the display module and the front shell.

17. The vehicle-mounted display assembly according to claim 1, characterized in that, The display module is connected to the front shell by stepped screws, and the front shell has mounting holes for the stepped screws to pass through.

18. The vehicle-mounted display assembly according to claim 17, characterized in that, The display module has a threaded post formed thereon. The wall of the mounting hole is formed by a hollow mounting post, and the mounting post and the threaded post are coaxially arranged. The stepped screw includes an end section, a threaded section, and a stepped stage disposed between the end section and the threaded section. The inner wall of the mounting post has a radially extending boss. The end section is disposed on the side of the boss facing away from the threaded post. The end of the stepped stage away from the end section abuts against the end of the threaded post. The threaded section is screwed to the threaded post.

19. The vehicle-mounted display assembly according to claim 18, characterized in that, Sealant is provided at the gap between the end section and the boss.

20. A central control mechanism, characterized in that, Includes the vehicle display assembly according to any one of claims 1-19.

21. A vehicle, characterized in that, Includes the central control mechanism according to claim 20 or the vehicle display assembly according to any one of claims 1-19.

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