Domain controller and movable platform

Abstract

The domain controller comprises a shell with a first containing cavity, an opening is formed in the edge of the shell, and a water guide groove is formed in the outer wall of the shell with the opening; the circuit board is provided with an onboard antenna area, a part of the circuit board is arranged in the first accommodating cavity, and the onboard antenna area is exposed from the opening and is close to the water chute; the antenna cover is detachably arranged on the shell, the antenna cover can cover the opening, a second containing cavity is formed by the antenna cover and the shell, the onboard antenna area and the water guide groove are contained in the second containing cavity, and a groove opening of the water guide groove is communicated with the outside. When liquid drops on the surface of the shell of the domain controller and the movable platform or the surface of the antenna cover, the liquid permeating into the second accommodating cavity does not directly drop on the PCBA board, but flows into the water chute and is finally discharged out of the second accommodating cavity through the notch, so that the PCBA board and the antenna chip are prevented from being damaged. The domain controller can meet the waterproof requirement of the IP5K2 level.

Description

Technical Field

[0001] The invention relates to the field of domain controller manufacturing, and in particular to a domain controller with a waterproof function, and a movable platform using the domain controller. Background Art

[0002] At present, based on high-performance computing chips, vehicle-mounted domain controllers integrate cockpit domain functions and intelligent driving domain functions. Cockpit domain functions mainly refer to the management and control of the digital instrument panel and information and entertainment systems in the car, while intelligent driving domain functions mainly refer to the real-time reception and processing of data from multiple sensors such as cameras, radars, and lidars to achieve accurate perception of the surrounding environment, and perform path planning, obstacle avoidance strategies, vehicle speed control, etc., to ensure that the vehicle can travel safely and efficiently.

[0003] The Chinese invention patent application with publication number CN113794051A discloses a host structure with a board-mounted antenna, including an upper cover, a lower cover, a circuit board and an antenna cover. The upper cover and the lower cover can cooperate to form a mounting cavity, and the mounting cavity is provided with an antenna outlet. The circuit board is arranged in the mounting cavity, and the antenna mounting parts near the four corners of the circuit board extend from the antenna outlet. The triangular antenna cover is engaged with the upper cover and the lower cover in a snap-fit ​​manner, thereby covering the antenna mounting part of the circuit board. A plurality of positioning grooves are arranged at intervals on the antenna cover, and elastic arms are formed between adjacent positioning grooves, thereby enhancing the deformation ability of the antenna cover. However, the host structure with a board-mounted antenna has the following defects: 1. Water droplets and dust can more easily enter the installation cavity through the positioning groove on the antenna cover and damage the circuit board.

[0004] 2. The antenna cover is fixed and installed after being clamped by the upper cover and the lower cover on both sides. When disassembling, both the upper cover and the lower cover need to be removed before the antenna cover can be removed. The operation is cumbersome, which is not conducive to assembly on the production line, nor to the later maintenance of the onboard antenna.

[0005] 3. The triangular antenna cover and onboard antenna are installed at the four corners of the PCBA board, which imposes strong constraints on the layout of the onboard antenna. In addition, the plastic antenna cover protrudes beyond the metal upper and lower covers and is easily broken when dropped or collided, thus losing the protective effect on the onboard antenna.

[0006] The Chinese invention patent application with publication number CN116632505A discloses an onboard antenna cover installation structure and a main unit of a smart cockpit, including a main shell, a circuit board and an antenna cover. A chamber is formed in the main shell, and the circuit board is arranged in the chamber, and the substrate of the onboard antenna is exposed to the outside. The antenna cover is mounted on the main shell and covers the substrate of the onboard antenna. The elastic clamping arm of the antenna cover is deformed in the left and right directions, so that the antenna cover is clamped on a pair of clamping hooks (clamping area) of the main shell by means of the elastic clamping arm, and the positioning assembly (including the positioning sheet and the positioning groove) provides a limit for the antenna cover in the up and down directions. That is, the antenna cover is directly mounted on the main shell by means of clamping and plugging. However, the onboard antenna cover installation structure and the main unit of the smart cockpit have the following defects: 1. The antenna cover is directly installed on the main shell by snapping and plugging, which inevitably forms a small gap between the main shell, so that water droplets and dust can easily penetrate into the chamber through the antenna cover, thereby damaging the circuit board.

[0007] 2. The triangular antenna cover and onboard antenna are installed at the four corners of the PCBA board, which imposes strong constraints on the layout of the onboard antenna. The antenna cover protrudes outside the main shell and is easily broken when it falls or collides, thereby losing the protective effect on the onboard antenna. Summary of the invention

[0008] In view of the problems existing in the background technology, one aspect of the present invention provides a domain controller, including: A shell having a first accommodating cavity, wherein an opening is formed at an edge of the shell, and a water guide groove is provided on an outer wall of the shell forming the opening; A circuit board having an onboard antenna area, a portion of which is disposed in the first accommodating cavity, and the onboard antenna area is exposed by the opening and is adjacent to the water guide groove; An antenna cover is detachably disposed on the shell, and the antenna cover can cover the opening and form a second accommodating cavity with the shell, the onboard antenna area and the water guide groove are accommodated in the second accommodating cavity, and the notch of the water guide groove is connected to the outside.

[0009] In some embodiments of the present invention, the height of the notch of the water guide groove on the outer wall of the shell is lower than the height of the remaining part.

[0010] In some embodiments of the present invention, a flange is formed on the outer wall of the shell, a water retaining rib is provided at the end of the flange, and the outer wall, the flange and the water retaining rib enclose a water guide groove with an opening facing away from the onboard antenna area.

[0011] In some embodiments of the present invention, after the antenna cover covers the opening, the end of the water retaining rib protrudes from the antenna cover, so that the depth of the notch of the water guide groove is greater than the depth of the remaining part.

[0012] In some embodiments of the present invention, the water guide groove is "U"-shaped, and a locking protrusion is formed at the notch of the water guide groove. Elastic hooks are arranged in pairs on the antenna cover, and the elastic hooks can extend into the water guide groove and engage with the locking protrusions.

[0013] In some embodiments of the present invention, a positioning hole or a positioning groove is formed on one of the outer wall of the shell and the antenna cover, and a positioning protrusion is formed on the other, so that the positioning hole or the positioning groove is first combined with the positioning protrusion, and then the elastic hook is engaged with the engaging protrusion.

[0014] In some embodiments of the present invention, the positioning protrusion has a rough surface and / or the tail of the positioning protrusion is thicker than the end tail, so that it can be interference fit with the positioning hole or positioning groove.

[0015] In some embodiments of the present invention, a water retaining wall surrounding the opening is protrudingly formed on the shell.

[0016] In some embodiments of the present invention, a connector is disposed on the circuit board, a connector installation opening is formed on the shell, and a water retaining wall surrounding the connector installation opening is protrudingly formed on the shell.

[0017] Another aspect of the present invention provides a mobile platform, comprising: any one of the domain controllers described above.

[0018] In the domain controller and movable platform provided by the present invention, when liquid drips onto the surface of the housing or the antenna cover, part of the liquid seeps into the second accommodation cavity from the gap between the antenna cover and the outer wall, and the liquid does not drip directly onto the PCBA board, but flows into the water guide groove, and finally is discharged out of the second accommodation cavity through the notch, thereby avoiding damage to the PCBA board and the antenna chip. The domain controller can meet the IP5K2 level waterproof requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a domain controller provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram of the upper shell; Figure 3 It is a schematic diagram of the structure of the circuit board; Figure 4 is a schematic diagram of the structure of the lower shell; Figure 5The figure is a schematic diagram of the assembly of the antenna cover and the housing (front side); Figure 6 The figure is the assembly diagram of the antenna cover and the housing (reverse side); Figure 7 This is a partial enlarged view of the water channel at the open end; Figure 8a is a schematic diagram of the structure of the antenna cover (first direction); Figure 8b is a schematic diagram of the structure of the antenna cover (second direction); Fig. 9 for Figure 1 A cross-sectional view of the domain controller opening is shown.

[0020] Description of reference numerals: Domain controller 100; Shell 10; outer wall 10a; upper shell 10b; lower shell 10c; cooling channel 10d; first accommodating chamber 11a; second accommodating chamber 11b; opening 12; water guide groove 13; notch 13a; flange 13b; water retaining rib 13c; engaging protrusion 14; positioning hole or positioning groove 15; water retaining wall 16; connector mounting opening 17; Circuit board 20; onboard antenna area 20a; connector 20b; Antenna cover 30; elastic hook 31; positioning protrusion 32; positioning feature 33; reinforcing rib 34. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-9As shown, an embodiment of the present invention provides a domain controller 100, which mainly includes a shell 10, a circuit board 20 and an antenna cover 30. The shell 10 has a first accommodating cavity 11a, an opening 12 is formed at the edge of the shell 10, and a water guide groove 13 is arranged on the outer wall 10a of the shell 10 where the opening 12 is formed. The circuit board 20 has an onboard antenna area 20a, a part of the circuit board 20 is arranged in the first accommodating cavity 11a, and the onboard antenna area 20a is exposed by the opening 12 and is adjacent to the water guide groove 13. The antenna cover 30 is detachably arranged on the shell 10, and the antenna cover 30 can cover the opening 12 and form a second accommodating cavity 11b with the shell 10, and the onboard antenna area 20a and the water guide groove 13 are accommodated in the second accommodating cavity 11b, and the notch 13a of the water guide groove 13 is connected to the outside.

[0023] Exemplarily, the circuit board 20 may be a PCBA (Printed Circuit Board Assembly, PCBA for short) board on which a blank PCB board is assembled through SMT (Surface Mount Technology).

[0024] For example, the antenna chip can be mounted on the PCBA board through SMT patch, and there is no need to fix the antenna module on the surface of the shell and then connect it to the PCBA board through the wiring harness, which has stronger reliability. When stacking the PCBA boards, it is necessary to pay attention to the clearance near the antenna chip, and the corresponding position of the shell 10 should be opened to avoid it to ensure the performance of the antenna chip.

[0025] Exemplarily, the housing 10 may be made of a relatively strong plastic or metal material, and the antenna cover 30 may be made of a plastic material that has a good protective effect on the onboard antenna area 20 a and does not shield the antenna chip signal.

[0026] In this embodiment, there are three antenna chips mounted on the PCBA board (three onboard antenna areas 20a), so three openings 12 are also formed at corresponding positions of the housing 10. Two of the openings 12 are located on one side of the housing 10, and the other opening 12 is located on the other side of the housing 10.

[0027] In other embodiments, the number of openings 12 may be changed according to the number of onboard antenna regions 20 a . For example, there may be one or two openings 12 .

[0028] In this embodiment, for easy assembly, the housing 10 includes a detachable upper housing 10b and a lower housing 10c, the upper housing 10b and the lower housing 10c enclose a first accommodating cavity 11a, and the circuit board 20 is disposed in the first accommodating cavity 11a. The upper housing 10b, the lower housing 10c and the circuit board 20 can be fixed to each other by screws.

[0029] In other embodiments, the housing 10 may be integrally formed, and a first accommodating cavity 11a is formed therein, and the circuit board 20 may be disposed in the first accommodating cavity 11a (for example, the circuit board 20 may be inserted into the first accommodating cavity 11a from one side of the housing 10, and a closable compartment cover is disposed on the insertion port). The housing 10 and the circuit board 20 may be fixed to each other by screws.

[0030] In this embodiment, the upper housing 10 b has a cooling channel 10 d , and the coolant or cold air in the cooling channel 10 d can dissipate heat for the circuit board 20 .

[0031] In other embodiments, the upper housing 10 b may also be provided with an air-cooled heat dissipation module (not shown) or a passive heat dissipation module (not shown).

[0032] In this embodiment, the opening 12 is mainly formed at the side edge of the shell 10 and extends toward the top surface of the upper shell 10b and the bottom surface of the lower shell 10c, that is, the cross section of the opening 12 is substantially in a "]" shape.

[0033] In other embodiments, the opening 12 may be mainly formed at the side edge of the shell 10 and extend toward the top surface of the upper shell 10b instead of extending toward the bottom surface of the lower shell 10c, that is, the cross-section of the opening 12 is roughly “𠃍”-shaped.

[0034] In this embodiment, the water guide groove 13 is formed in the width direction of the entire opening 12 (eg Figure 2 D direction), which can collect the droplets that penetrate into the second accommodating chamber 11b through the gap between the antenna cover 30 and the outer wall 10a of the shell 10 in the water guide groove 13, and then discharge them out of the second accommodating chamber 11b through the notch 13a.

[0035] Those skilled in the art should be able to understand that when liquid drips onto the surface of the housing 10 or the antenna cover 30, part of the liquid seeps into the second accommodation chamber 11b from the gap between the antenna cover 30 and the outer wall 10a, and the liquid will not drip directly onto the PCBA board, but will flow into the water guide groove 13, and finally be discharged from the second accommodation chamber 11b through the notch 13a, thereby avoiding damage to the PCBA board and the antenna chip. The domain controller 100 can meet the IP5K2 level waterproof requirements.

[0036] Special reference Figure 5-7 As shown, further, the height of the notch 13a of the water guide groove 13 on the outer wall 10a of the shell 10 is lower than the height of the remaining parts.

[0037] In this embodiment, a step is formed at the notch 13 a of the water guide groove 13 so that the height of the notch 13 a is lower than that of the remaining parts.

[0038] In other embodiments, the water channel 13 may be formed with multiple steps, or the water channel 13 may be configured to be a slope similar to a slide, so that the height of the notch 13a is lower than the height of the remaining parts.

[0039] Those skilled in the art should be able to understand that setting the notch 13a of the water guide groove 13 at a lower position is conducive to the flow of liquid in the water guide groove 13 and quickly discharge it out of the second accommodating cavity 11b through the notch 13a, thereby preventing the liquid from overflowing the water guide groove 13 and splashing onto the PCBA board or the antenna chip.

[0040] Continue to refer to Figure 5-7 As shown, further, a flange 13b is formed on the outer wall 10a of the shell 10, and a water-retaining rib 13c is provided at the end of the flange 13b. The outer wall 10a, the flange 13b and the water-retaining rib 13c enclose a water guide groove 13 with an opening facing away from the onboard antenna area 20b.

[0041] Furthermore, after the antenna cover 30 covers the opening 12 , the end of the water-retaining rib 13 c protrudes from the antenna cover 30 , so that the depth of the notch 13 a of the water guide groove 13 is greater than the depth of the remaining parts.

[0042] Those skilled in the art should be able to understand that the height of the water retaining rib 13c can be adjusted as needed, and the height of the water retaining rib 13c determines the depth of the water guide groove 13. The water retaining rib 13c can be appropriately raised without affecting the detachable covering of the antenna cover 30 on the opening 12. In particular, the height and width of the water retaining rib 13c are increased at the notch 13a of the water guide groove 13, so that the water retaining rib 13c protrudes slightly from the antenna cover 30, so as to prevent droplets from splashing from the side into the second accommodation cavity 11b, thereby better protecting the PCBA board and the antenna chip.

[0043] Furthermore, the water channel 13 is U-shaped, and a snap-fit ​​protrusion 14 is formed at the notch 13 a of the water channel 13 . Elastic hooks 31 are arranged in pairs on the antenna cover 30 , and the elastic hooks 31 can extend into the water channel 13 and snap-fit ​​with the snap-fit ​​protrusion 14 .

[0044] In this embodiment, the engaging protrusion 14 is formed on the outer wall 10a of the housing 10 and is located at the notch 13a of the water guide groove 13. The engaging protrusion 14 makes the water guide groove 13 narrower at the notch 13a, and the water retaining rib 13c limits the elastic hook 31 from the other side, so that the elastic hook 31 can more easily enter the notch 13a and engage with the engaging protrusion 14. After the engagement is completed, the elastic hook 31 will not completely block the notch 13a.

[0045] In other embodiments, the engaging protrusion 14 may be formed on the water retaining rib 13c and located at the notch 13a of the water guide groove 13. Similarly, the engaging protrusion 14 narrows the water guide groove 13 at the notch 13a, and the outer wall 10a of the housing 10 limits the elastic hook 31 from the other side, so that the elastic hook 31 can more easily enter the notch 13a and engage with the engaging protrusion 14. After the engagement is completed, the elastic hook 31 will not completely block the notch 13a.

[0046] Those skilled in the art should be able to understand that the circuit board 20 is first arranged in the first accommodating cavity 11a of the housing 10, and then the antenna cover 30 is directly covered on the opening 12, and the elastic hook 31 on the antenna cover 30 is directly engaged with the engaging protrusion 14 at the notch 13a of the water guide groove 13, so that the antenna cover 30 can be directly removed from the housing 10, instead of first removing the upper housing and the lower housing, and then removing the antenna cover 30 as in the prior art, which is not only conducive to assembly of the production line, but also conducive to the later maintenance of the onboard antenna area 20a. In addition, although the elastic hook 31 and the engaging protrusion 14 form an engagement in the water guide groove 13, which will narrow the notch 13a, the aforementioned method of increasing the height of the water-retaining rib 13c at the notch 13a can be adopted to ensure that the liquid flow at the notch 13a remains unchanged (at least will not be significantly reduced). By adjusting the matching tolerance of the elastic hook 31 and the engaging protrusion 14, their engagement tightness can be adjusted.

[0047] Combination Figure 8a and 8b As shown, further, a positioning hole or positioning groove 15 is formed on one of the outer wall 10a of the shell 10 and the antenna cover 30, and a positioning protrusion 32 is formed on the other, so that the positioning hole or positioning groove 15 is first combined with the positioning protrusion 32, and then the elastic hook 31 is engaged with the engaging protrusion 32.

[0048] In this embodiment, the antenna cover 30 is roughly in the shape of a "]", with two positioning protrusions 32 formed on its upper part, one positioning protrusion 32 formed on its lower part, and the aforementioned elastic hook 31 formed in its middle. Correspondingly, two positioning holes or positioning grooves 15 are formed on (the outer wall 10a of) the upper shell 10b, and one positioning hole or positioning groove 15 is formed on (the outer wall 10a of) the lower shell 10c.

[0049] In other embodiments, the antenna cover 30 is generally in a "]" shape, with a positioning protrusion 32 formed on the upper portion, two positioning protrusions 32 formed on the lower portion, and the aforementioned elastic hook 31 formed in the middle. Accordingly, a positioning hole or positioning groove 15 is formed on (the outer wall 10a of) the upper shell 10b, and two positioning holes or positioning grooves 15 are formed on (the outer wall 10a of) the lower shell 10c.

[0050] In other embodiments, the positioning protrusions 32 may be formed on (the outer wall 10 a of) the upper housing 10 b and (the outer wall 10 a of) the lower housing 10 c , and the positioning holes or positioning grooves 15 may be formed on the antenna cover 30 .

[0051] In this embodiment, the middle portion of the antenna cover 30 is irregularly shaped and has a plurality of auxiliary positioning features 33 formed thereon, which may be in the shape of protrusions, steps, hooks, etc. A plurality of auxiliary guide features matching therewith may be formed on the outer wall 10a of the housing 10.

[0052] Those skilled in the art should be able to understand that the positioning hole or positioning groove 15 and the positioning protrusion 32 can provide guidance for the combination of the antenna cover 30 and the housing 10, so that the elastic hook 31 and the engaging protrusion 14 can be smoothly engaged in the subsequent process. The antenna cover 30 can be more easily directly assembled on the housing 10 or directly removed from the housing 10, which is beneficial to assembly on the production line and also beneficial to the later maintenance of the onboard antenna area 20a.

[0053] Furthermore, the positioning protrusion 32 has a rough surface so that it can be interference-fitted with the positioning hole or the positioning groove 15 .

[0054] And / or, the thickness of the tail portion of the positioning protrusion 32 is greater than that of the end portion, so that it can be interference fit with the positioning hole or positioning groove 15.

[0055] In this embodiment, two positioning protrusions 32 are formed on the upper part of the antenna cover 30, and the two positioning protrusions 32 have a rough surface (for example, tiny particles are formed on their surfaces), and a positioning protrusion 32 is formed on the lower part of the antenna cover 30, and the thickness of the tail of the positioning protrusion 32 is greater than the end.

[0056] In other embodiments, all the positioning protrusions 32 have a rough surface, or all the positioning protrusions 32 have a tail portion that is thicker than an end portion.

[0057] Those skilled in the art should be able to understand that whether the positioning protrusion 32 adopts a rough surface or the thickness of the tail of the positioning protrusion 32 is greater than the end, a damping feel can be provided during the clamping process of the antenna cover 30 and the housing 10. In addition, when the domain controller 100 is installed on a vehicle, vibration is inevitable during the driving of the vehicle. The positioning protrusion 32 in the above form can prevent the antenna cover 30 from vibrating and enhance the reliability of the domain controller 100.

[0058] Furthermore, a water retaining wall 16 is protrudingly formed on the housing 10 and surrounds the opening 12 .

[0059] Those skilled in the art will appreciate that providing the water retaining wall 16 can prevent the liquid on the surface of the housing 10 from flowing toward the antenna cover 30 , thereby preventing excessive liquid from infiltrating the second accommodating cavity 11 b and overflowing from the water guide groove 13 .

[0060] Furthermore, a connector 20 b is disposed on the circuit board 20 , a connector installation opening 17 is opened on the housing 10 , and a water retaining wall 16 is protrudingly formed on the housing 10 to surround the connector installation opening 17 .

[0061] Those skilled in the art should be able to understand that the water retaining wall 16 of the connector mounting port 17 is arranged on a side extending along the outer edge of the shell 10, and the overall structure is similar to a brim structure, so that the connector 20b does not protrude from the shell 10, and the water retaining wall 16 protrudes from the surface of the shell 10. On the one hand, the water retaining wall 16 has the effect of preventing liquid from dripping onto the connector 20b, and on the other hand, it can prevent collision and trampling.

[0062] Furthermore, a reinforcing rib 34 of at least one shape is formed on the antenna cover 30 .

[0063] In this embodiment, the middle portion of the antenna cover 30, which is roughly "]" shaped, has a plurality of hexagonal reinforcing ribs 34 arranged in a grid. The antenna cover 30 is also provided with a plurality of fin-shaped reinforcing ribs 34 connecting the upper portion and the middle portion, and triangular reinforcing ribs 34 connecting the lower portion and the middle portion.

[0064] Those skilled in the art should be able to understand that the present application does not limit the shape of the antenna cover 30, as long as it can cover the opening 12. Therefore, one or more types of reinforcing ribs 34 can be provided according to the specific shape of the antenna cover 30, so as to improve the structural strength of the antenna cover 30, reduce the deformation of the antenna cover 30 during installation and use, and better protect the circuit board 20 (especially the onboard antenna area 20b).

[0065] Furthermore, the antenna cover 30 is not located at a top corner of the housing 10 .

[0066] Those skilled in the art should be able to understand that, based on the fact that the antenna cover 30 can be directly installed on the shell 10 and the position of the opening 12 on the shell 10 has a very high degree of freedom, the antenna cover 30 of the present application is not located at the top corner of the shell 10, thereby overcoming the defect in the prior art that the antenna cover 30 is easily broken when falling or colliding.

[0067] In addition, the domain controller described above can also be used for a movable platform. The movable platform can be a car, an unmanned aerial vehicle, a remote-controlled car, an unmanned ship, or a robot, wherein the car can be an unmanned vehicle or a manned vehicle, and the unmanned aerial vehicle can be a drone or other unmanned aerial vehicles. Of course, the movable platform is not limited to the movable platforms listed above, and can also be other movable platforms.

[0068] Those skilled in the art should be able to understand that since the movable platform adopts the above-mentioned domain controller, it has all the technical effects brought by the above-mentioned domain controller. For example, when liquid drips on the surface of the housing 10 or the surface of the antenna cover 30, part of the liquid penetrates into the second accommodating chamber 11b from the gap between the antenna cover 30 and the outer wall 10a. These liquids will not drip directly on the PCBA board, but will flow into the water guide groove 13, and finally be discharged from the second accommodating chamber 11b through the notch 13a, thereby avoiding damage to the PCBA board and the antenna chip. The domain controller 100 can meet the IP5K2 level of waterproof requirements.

[0069] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0070] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A domain controller, characterized in that include: A shell having a first accommodating cavity, wherein an opening is formed at an edge of the shell, and a water guide groove is provided on an outer wall of the shell forming the opening; A circuit board having an onboard antenna area, a portion of which is disposed in the first accommodating cavity, and the onboard antenna area is exposed by the opening and is adjacent to the water guide groove; An antenna cover is detachably disposed on the shell, and the antenna cover can cover the opening and form a second accommodating cavity with the shell, the onboard antenna area and the water guide groove are accommodated in the second accommodating cavity, and the notch of the water guide groove is connected to the outside.

2. The domain controller according to claim 1, characterized in that: The height of the notch of the water guide groove on the outer wall of the shell is lower than the height of the remaining parts.

3. The domain controller according to claim 1, characterized in that: A flange is formed on the outer wall of the shell, and a water retaining rib is arranged at the end of the flange. The outer wall, the flange and the water retaining rib enclose a water guide groove with an opening facing away from the onboard antenna area.

4. The domain controller according to claim 3, characterized in that: After the antenna cover covers the opening, the end of the water-retaining rib protrudes from the antenna cover, so that the depth of the notch of the water guide groove is greater than the depth of the remaining part.

5. The domain controller according to any one of claims 1 to 4, characterized in that: The water guide groove is in a "U" shape, and a locking protrusion is formed at the notch of the water guide groove. Elastic hooks are arranged in pairs on the antenna cover, and the elastic hooks can extend into the water guide groove and be locked with the locking protrusion.

6. The domain controller according to claim 5, characterized in that: A positioning hole or a positioning groove is formed on one of the outer wall of the shell and the antenna cover, and a positioning protrusion is formed on the other, so that the positioning hole or the positioning groove is first combined with the positioning protrusion, and then the elastic hook is engaged with the engaging protrusion.

7. The domain controller according to claim 6, characterized in that: The positioning protrusion has a rough surface and / or the tail of the positioning protrusion is thicker than the end tail, so that it can be interference-fitted with the positioning hole or positioning groove.

8. The domain controller according to claim 1, characterized in that: A water retaining wall surrounding the opening is protrudingly formed on the shell.

9. The domain controller according to claim 1, characterized in that: The circuit board is provided with a connector, the shell is provided with a connector installation opening, and the shell is protrudingly formed with a water retaining wall surrounding the connector installation opening.

10. A movable platform, characterized in that: include: A domain controller as claimed in claims 1 to 9.

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