Shell assembly of controller and controller

Abstract

The utility model discloses a shell assembly of a controller and the controller, and the shell assembly comprises a first shell, the edge of which is provided with a plugging part; the second shell is arranged on the first shell, the second shell and the first shell jointly define a containing space used for containing the electric device, a matching groove is formed in the edge of the second shell, and the inserting part is matched with the matching groove to seal the containing space. According to the utility model, through the cooperation of the cooperation groove and the plugging part, a zigzag gap is formed, and the surface of the plugging part can abut against the groove wall of the cooperation groove, thereby improving the sealing performance, reducing the probability that liquid permeates into the accommodation space, avoiding the probability of short circuit caused by liquid contact with an electric device, and enabling the cooperation of the plugging part and the cooperation groove to be easy to observe. The probability that installation is not in place is reduced, even if deformation occurs, the inserting part can still be matched with the matching groove, and the reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control devices, in particular to a housing component of a controller and a controller. Background Art

[0002] In the related art, the controller is usually provided with an upper shell and a lower shell. The upper shell is fixed on the lower shell. The edge of the upper shell is provided with a protrusion, and the lower shell is provided with a base corresponding to the protrusion. The side of the protrusion rests on the base to prevent water from entering the controller. However, the sealing performance of the matching scheme of the protrusion and the base is poor. When there is a problem in assembly, or the upper shell and the lower shell are deformed, the protrusion cannot contact the base, and water will still seep into the controller. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a housing assembly for a controller, which improves sealing and reduces the probability of liquid seeping into the accommodation space.

[0004] According to an embodiment of the present invention, a housing assembly of a controller includes: a first shell, an edge of which is provided with a plug-in portion; a second shell, which is provided on the first shell, and the second shell and the first shell together define a accommodating space for accommodating electrical components, and an edge of the second shell is provided with a mating groove, and the plug-in portion cooperates with the mating groove to seal the accommodating space.

[0005] According to the housing assembly of the controller of the embodiment of the present invention, a tortuous gap is constructed through the cooperation between the mating groove and the plug-in part. The surface of the plug-in part can also abut against the groove wall of the mating groove, thereby improving the sealing performance, thereby reducing the probability of liquid seeping into the accommodating space and avoiding the probability of liquid contacting electrical components and causing a short circuit. In addition, the cooperation between the plug-in part and the mating groove is easier to observe, reducing the probability of improper installation. Even if deformation occurs, the plug-in part can still maintain cooperation with the mating groove, thereby improving reliability.

[0006] In some embodiments, the mating groove has a first working surface, a second working surface and a third working surface, the second working surface abuts the plug-in portion, and the first working surface and the third working surface are respectively connected to the opposite ends of the second working surface; wherein, the first working surface faces the first side surface of the plug-in portion, the second working surface faces the second side surface of the plug-in portion, and the first side surface and the second side surface are constructed as opposite surfaces of the plug-in portion.

[0007] In some embodiments, the first working surface abuts the first side surface; or / and the second working surface abuts the second side surface.

[0008] In some embodiments, the first shell further has a mating protrusion, which protrudes toward one side of the plug-in portion. The second shell has a mating surface facing the first shell, and the mating groove is opened on the mating surface, and the mating surface abuts the mating protrusion.

[0009] In some embodiments, the mating protrusion is provided on a side of the plug-in portion facing away from the accommodating space.

[0010] In some embodiments, the second shell is disposed above the first shell, and the second shell has a shell body and an extension portion. The mating groove is disposed on the shell body, and the extension portion is connected to the shell body. The extension portion is located on the side of the mating groove away from the accommodating space, and the extension portion extends downward to cover at least part of the mating protrusion.

[0011] In some embodiments, the extension portion extends to below the mating protrusion; wherein, the distance between the bottom surface of the extension portion and the bottom surface of the mating protrusion is H, 3mm≤H≤5mm.

[0012] In some embodiments, a connecting portion is further provided at one end of the extension portion, one end of the connecting portion is connected to the shell body, and the other end is connected to the extension portion, so that the extension portion and the mating protrusion are spaced apart by a distance L, 0.9 mm ≤ L ≤ 2 mm.

[0013] In some embodiments, the first shell is made of metal, and the second shell is made of metal.

[0014] A controller according to an embodiment of the present invention includes the above-mentioned housing assembly.

[0015] According to the controller of the embodiment of the present invention, a tortuous gap is constructed through the cooperation between the mating groove and the plug-in part, and the surface of the plug-in part can also abut against the groove wall of the mating groove, thereby improving the sealing performance, thereby reducing the probability of liquid seeping into the accommodating space, avoiding the probability of liquid contacting electrical components and causing a short circuit, and the cooperation between the plug-in part and the mating groove is easier to observe, reducing the probability of improper installation. Even if deformation occurs, the plug-in part can still maintain cooperation with the mating groove, thereby improving reliability.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1This is a cross-sectional view of the housing assembly in the embodiment of the present invention. Figure 1 ;

[0019] Figure 2 This is a cross-sectional view of the housing assembly in the embodiment of the present invention. Figure 2 ;

[0020] Figure 3 This is a cross-sectional view of the housing assembly in the embodiment of the present invention. Figure 3 ;

[0021] Figure 4 This is a cross-sectional view of the housing assembly in the embodiment of the present invention. Figure 4 ;

[0022] Figure 5 This is a cross-sectional view of the housing assembly in the embodiment of the present invention. Figure 5 .

[0023] Reference numerals:

[0024] 100. Housing assembly;

[0025] 10. First housing; 11. Insertion portion; 12. Matching protrusion;

[0026] 20. Second housing; 21. Fitting groove; 211. First working surface; 212. Second working surface; 213. Third working surface; 22. Fitting surface; 23. Housing body; 24. Extension portion; 241. Connecting portion;

[0027] 30. Accommodate space. DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0030] In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without any distinction in order or importance.

[0031] In the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] The housing assembly 100 of the controller according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0034] Reference Figure 1 According to an embodiment of the present invention, a housing assembly 100 includes a first housing 10 and a second housing 20 .

[0035] The first housing 10 has an inserting portion 11 formed on its edge. The second housing 20 is disposed on the first housing 10 , and together with the first housing 10 , the second housing 20 defines a housing space 30 for accommodating electrical components. A mating groove 21 is formed on the edge of the second housing 20 , and the inserting portion 11 mates with the mating groove 21 to seal the housing space 30 .

[0036] Among them, the first shell 10 and the second shell 20 cooperate to define a accommodating space 30, which is used to accommodate electrical components, such as PCB boards, relays, etc. The edge of the first shell 10 is provided with a plug-in portion 11, and the edge of the second shell 20 is provided with a mating groove 21. The plug-in portion 11 can be inserted into the mating groove 21, and the plug-in portion 11 cooperates with the mating groove 21 to prevent liquid from entering the accommodating space 30.

[0037] In the related art, the controller is usually provided with an upper shell and a lower shell. The upper shell is fixed on the lower shell. The edge of the upper shell is provided with a protrusion, and the lower shell is provided with a base corresponding to the protrusion. The side of the protrusion rests on the base to prevent water from entering the controller. However, the sealing performance of the matching scheme of the protrusion and the base is poor. When there is a problem in assembly, or the upper shell and the lower shell are deformed, the protrusion cannot contact the base, and water will still seep into the controller.

[0038] In an embodiment of the present invention, through the cooperation between the plug-in portion 11 and the mating groove 21, a tortuous gap is constructed between the plug-in portion 11 and the mating groove 21, for example, three gap spaces are connected in sequence, and two adjacent gap spaces are perpendicular to each other, thereby constructing a complex gap, reducing the probability of liquid penetrating into the accommodating space 30.

[0039] Among them, the plug-in part 11 is inserted into the matching groove 21, and the surface of the plug-in part 11 can abut against the groove wall of the matching groove 21, thereby further reducing the probability of liquid penetration. The plug-in part 11 can be interference fit with the matching groove 21, thereby further reducing the probability of liquid penetration.

[0040] At the same time, the plug-in part 11 is inserted into the mating groove 21, which is convenient for assembly and easier to observe, reducing the probability of improper installation. Even after long-term use, the plug-in part 11 can still maintain cooperation with the mating groove 21 even if deformation occurs, thereby improving reliability.

[0041] According to the housing assembly 100 of the embodiment of the present invention, a tortuous gap is constructed through the cooperation between the mating groove 21 and the plug-in portion 11, and the surface of the plug-in portion 11 can also abut against the groove wall of the mating groove 21, thereby improving the sealing performance, thereby reducing the probability of liquid seeping into the accommodating space 30, and avoiding the probability of liquid contacting electrical components and causing a short circuit, and the cooperation between the plug-in portion 11 and the mating groove 21 is easier to observe, reducing the probability of improper installation, and even if deformation occurs, the plug-in portion 11 can still maintain cooperation with the mating groove 21, thereby improving reliability.

[0042] Reference Figure 2 In some embodiments, the mating groove 21 has a first working surface 211, a second working surface 212, and a third working surface 213. The second working surface 212 abuts the plug-in portion 11, and the first working surface 211 and the third working surface 213 respectively connect opposite ends of the second working surface 212. The first working surface 211 faces the first side surface of the plug-in portion 11, and the second working surface 212 faces the second side surface of the plug-in portion 11. The first side surface and the second side surface are configured as opposing surfaces of the plug-in portion 11.

[0043] The mating groove 21 has multiple groove walls, which are a first working surface 211 , a second working surface 212 and a third working surface 213 . The first working surface 211 , the second working surface 212 and the third working surface 213 surround the plug-in portion 11 , and the second working surface 212 abuts against the plug-in portion 11 .

[0044] In the above scheme, by setting the first working surface 211 toward the first side surface of the plug-in portion 11 and the second working surface 212 toward the second side surface of the plug-in portion 11, the first side surface and the second side surface are constructed as opposite surfaces of the plug-in portion 11, and a complex gap is constructed. The second working surface 212 abuts against the plug-in portion 11 to narrow the gap, thereby further reducing the probability of liquid penetration and improving the sealing performance.

[0045] Specifically, the mating groove 21 is sleeved on the plug-in part 11, the left side surface of the plug-in part 11 is the first side surface, the right side surface of the plug-in part 11 is the second side surface, the left inner wall of the mating groove 21 faces the left side surface of the plug-in part 11, and the right inner wall of the mating groove 21 faces the right side surface of the plug-in part 11, and the second working surface 212 abuts the top surface of the plug-in part 11.

[0046] In some embodiments, the first working surface 211 abuts against the first side surface.

[0047] The first working surface 211 abuts against the first side surface, narrowing the gap, thereby further reducing the probability of liquid penetrating into the accommodating space 30 .

[0048] In other embodiments, the second working surface 212 abuts against the second side surface.

[0049] The second working surface 212 abuts against the second side surface, narrowing the gap, thereby further reducing the probability of liquid penetrating into the accommodating space 30 .

[0050] In some other embodiments, the first working surface 211 abuts against the first side surface, and the second working surface 212 abuts against the second side surface.

[0051] The first working surface 211 abuts the first side surface, the second working surface 212 abuts the second side surface, and the plug-in portion 11 and the matching groove 21 are interference fit to narrow the gap, thereby further reducing the probability of liquid seeping into the accommodating space 30.

[0052] Specifically, the mating groove 21 is sleeved on the plug-in part 11, the left side surface of the plug-in part 11 is the first side surface, the right side surface of the plug-in part 11 is the second side surface, the left inner wall of the mating groove 21 faces the left side surface of the plug-in part 11, and the left inner wall of the mating groove 21 abuts the left side surface of the plug-in part 11, the right inner wall of the mating groove 21 faces the right side surface of the plug-in part 11, and the right inner wall of the mating groove 21 abuts the right side surface of the plug-in part 11, and the second working surface 212 abuts the top surface of the plug-in part 11.

[0053] Reference Figure 5 In some specific embodiments, the length of the first side surface is A1, 2mm≤A1≤3mm, which improves the sealing performance.

[0054] For example, A1 is 2 mm; or, A1 is 2.5 mm; or, A1 is 2.6 mm; or, A1 is 3 mm.

[0055] Reference Figure 5 In some specific embodiments, the length of the second side surface is A2, 2mm≤A2≤3mm, which improves the sealing performance.

[0056] For example, A2 is 2 mm; or, A2 is 2.2 mm; or, A2 is 2.5 mm; or, A2 is 2.8 mm; or, A2 is 3 mm.

[0057] Reference Figure 5 In some specific embodiments, the length of the third side is A3, 1mm≤A3≤2.5mm, which improves the sealing performance.

[0058] For example, A3 is 1 mm; or A3 is 1.5 mm; or A3 is 1.8 mm; or A3 is 2 mm; or A3 is 2.2 mm; or A3 is 2.5 mm.

[0059] Reference Figure 3 In some embodiments, the first shell 10 further has a mating protrusion 12, which protrudes toward one side of the plug-in portion 11. The second shell 20 has a mating surface 22 facing the first shell 10, and the mating groove 21 is opened on the mating surface 22, and the mating surface 22 abuts against the mating protrusion 12.

[0060] Among them, the mating protrusion 12 is arranged on the first shell 10, and the mating protrusion 12 protrudes toward one side of the plug-in portion 11, that is, the mating protrusion 12 can protrude inward or outward, and the mating surface 22 on the second shell 20 rests on the raised mating protrusion 12.

[0061] In the above solution, the matching protrusion 12 is arranged to abut against the matching surface 22 to close the gap, thereby further reducing the probability of liquid penetrating into the accommodating space 30.

[0062] Specifically, the mating protrusion 12 is arranged on the inner side of the first shell 10, the mating protrusion 12 protrudes inward, and the mating protrusion 12 closes the inner opening of the gap; or, the mating protrusion 12 is arranged on the outer side of the first shell 10, the mating protrusion 12 protrudes outward, and the mating protrusion 12 closes the outer opening of the gap.

[0063] Reference Figure 3 In some embodiments, the mating protrusion 12 is provided on a side of the plug-in portion 11 facing away from the accommodating space 30 .

[0064] The mating protrusion 12 is provided on a side of the plug-in portion 11 facing away from the accommodating space 30 , that is, the mating protrusion 12 is provided on the outside of the first shell 10 and protrudes outward.

[0065] In the above solution, by arranging the mating protrusion 12 on the side of the plug-in portion 11 away from the accommodating space 30 , the outer opening of the gap is closed by the mating protrusion 12 , thereby blocking the liquid outside the first shell 10 and reducing the probability of liquid penetrating into the accommodating space 30 .

[0066] Reference Figure 4 In some embodiments, the second shell 20 is disposed above the first shell 10. The second shell 20 has a shell body 23 and an extension portion 24. The mating groove 21 is disposed in the shell body 23. The extension portion 24 is connected to the shell body 23. The extension portion 24 is located on the side of the mating groove 21 away from the accommodating space 30. The extension portion 24 extends downward to block at least part of the mating protrusion 12.

[0067] The first shell 10 is located below the second shell 20 . The second shell 20 has a shell body 23 and an extension portion 24 . The extension portion 24 is connected to the shell body 23 . The extension portion 24 is located outside the second shell 20 and extends downward to block the mating protrusion 12 .

[0068] In the above scheme, by setting the second shell 20 above the first shell 10, the extension portion 24 on the second shell 20 extends downward to the shielding part to cooperate with the protrusion 12, and the protrusion 12 blocks the gap, which is similar to the traditional tile structure of Chinese architecture. Liquid dripping on the extension portion 24 will fall along the extension portion 24, thereby preventing the liquid from entering the accommodating space 30.

[0069] Reference Figure 5 In some embodiments, the extension portion 24 extends to below the mating protrusion 12. The distance between the bottom surface of the extension portion 24 and the bottom surface of the mating protrusion 12 is H, 3mm≤H≤5mm.

[0070] The extension portion 24 is relatively long and extends to the bottom of the mating protrusion 12 , so that the extension portion 24 completely covers the mating protrusion 12 .

[0071] In the above scheme, by setting the distance H between the bottom surface of the extension portion 24 and the bottom surface of the mating protrusion 12 in the range of 3 to 5 mm, the extension portion 24 completely blocks the mating protrusion 12, and the liquid drips along the extension portion 24, thereby further reducing the probability of liquid entering the accommodating space 30.

[0072] For example, the distance H between the bottom surface of the extension portion 24 and the bottom surface of the mating protrusion 12 is 3 mm; or, the distance H between the bottom surface of the extension portion 24 and the bottom surface of the mating protrusion 12 is 3.5 mm; or, the distance H between the bottom surface of the extension portion 24 and the bottom surface of the mating protrusion 12 is 4 mm; or, the distance H between the bottom surface of the extension portion 24 and the bottom surface of the mating protrusion 12 is 4.5 mm; or, the distance H between the bottom surface of the extension portion 24 and the bottom surface of the mating protrusion 12 is 5 mm.

[0073] Reference Figure 4 In some embodiments, a connecting portion 241 is further provided at one end of the extension portion 24, one end of the connecting portion 241 is connected to the shell body 23, and the other end is connected to the extension portion 24, so that the extension portion 24 and the mating protrusion 12 are spaced L, 0.9mm≤L≤2mm.

[0074] The connecting portion 241 is disposed between the extending portion 24 and the shell body 23 to support the extending portion 24 .

[0075] In the above scheme, by setting the interval L between the extension portion 24 and the mating protrusion 12 in the range of 0.9 to 2 mm, it is convenient for the second shell 20 to be placed on the first shell 10. Even if the second shell 20 is deformed, the extension portion 24 can still play a shielding role to prevent liquid from seeping into the accommodating space 30.

[0076] For example, the spacing L between the extension portion 24 and the mating protrusion 12 is 0.9 mm; or, the spacing L between the extension portion 24 and the mating protrusion 12 is 1.1 mm; or, the spacing L between the extension portion 24 and the mating protrusion 12 is 1.3 mm; or, the spacing L between the extension portion 24 and the mating protrusion 12 is 1.5 mm; or, the spacing L between the extension portion 24 and the mating protrusion 12 is 1.7 mm; or, the spacing L between the extension portion 24 and the mating protrusion 12 is 1.9 mm; or, the spacing L between the extension portion 24 and the mating protrusion 12 is 2 mm.

[0077] In some embodiments, the first housing 10 is made of metal, and the second housing 20 is made of metal.

[0078] The first shell 10 and the second shell 20 are both made of metal to increase strength and prevent deformation.

[0079] For example, the first housing 10 is made of aluminum, and the second housing 20 is made of aluminum to reduce weight.

[0080] In some specific embodiments, the controller is a vehicle-mounted controller, which is installed on the floor or under the seat. The vehicle-mounted controller has a waterproof effect, which avoids the problem of controller failure caused by drinking water spilling or beverages pouring due to vehicle bumps, improves vehicle safety, and can ensure waterproofness even when tilted 15°.

[0081] The controller according to the embodiment of the present invention includes the housing assembly 100 described above.

[0082] According to the controller of the embodiment of the present invention, a tortuous gap is constructed through the cooperation between the matching groove 21 and the plug-in part 11. The surface of the plug-in part 11 can also abut against the groove wall of the matching groove 21, thereby improving the sealing performance, thereby reducing the probability of liquid seeping into the accommodating space 30, and avoiding the probability of liquid contacting electrical components and causing a short circuit. In addition, the cooperation between the plug-in part 11 and the matching groove 21 is easier to observe, reducing the probability of improper installation. Even if deformation occurs, the plug-in part 11 can still maintain cooperation with the matching groove 21, thereby improving reliability.

[0083] Other structures and operations of the housing assembly 100 of the controller according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0084] Throughout this specification, references to terms such as "embodiment" and "example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0085] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A housing assembly of a controller, characterized in that: include: A first shell (10), wherein an inserting portion (11) is provided at an edge of the first shell (10); A second shell (20), wherein the second shell (20) is arranged on the first shell (10), and the second shell (20) and the first shell (10) jointly define a storage space (30) for accommodating electrical components, and a matching groove (21) is provided on the edge of the second shell (20), and the plug-in portion (11) cooperates with the matching groove (21) to seal the storage space (30).

2. The housing assembly of the controller according to claim 1, characterized in that The matching groove (21) has a first working surface (211), a second working surface (212) and a third working surface (213), the second working surface (212) abuts against the plug-in portion (11), and the first working surface (211) and the third working surface (213) are respectively connected to opposite ends of the second working surface (212); wherein, The first working surface (211) faces the first side surface of the plug-in portion (11), and the second working surface (212) faces the second side surface of the plug-in portion (11), and the first side surface and the second side surface are configured as opposite surfaces of the plug-in portion (11).

3. The housing assembly of the controller according to claim 2, characterized in that: The first working surface (211) abuts against the first side surface; or / and, the second working surface (212) abuts against the second side surface.

4. The housing assembly of the controller according to claim 1, wherein: The first shell (10) further comprises a mating protrusion (12), the mating protrusion (12) being arranged to protrude toward one side of the plug-in portion (11), the second shell (20) comprising a mating surface (22) facing the first shell (10), the mating groove (21) being provided on the mating surface (22), and the mating surface (22) being in contact with the mating protrusion (12).

5. The housing assembly of the controller according to claim 4, characterized in that: The matching protrusion (12) is provided on a side of the plug-in portion (11) facing away from the accommodating space (30).

6. The housing assembly of the controller according to claim 4, characterized in that: The second shell (20) is arranged above the first shell (10), and the second shell (20) has a shell body (23) and an extension portion (24). The matching groove (21) is arranged on the shell body (23), and the extension portion (24) is connected to the shell body (23). The extension portion (24) is located on the side of the matching groove (21) away from the accommodating space (30), and the extension portion (24) extends downward to cover at least part of the matching protrusion (12).

7. The housing assembly of the controller according to claim 6, characterized in that: The extension portion (24) extends to below the mating protrusion (12); wherein, The distance between the bottom surface of the extension portion (24) and the bottom surface of the matching protrusion (12) is H, 3mm≤H≤5mm.

8. The housing assembly of the controller according to claim 6, characterized in that: One end of the extension portion (24) is further provided with a connecting portion (241), one end of the connecting portion (241) is connected to the shell body (23), and the other end is connected to the extension portion (24), so that the extension portion (24) and the matching protrusion (12) are spaced L, 0.9mm≤L≤2mm.

9. The housing assembly of the controller according to any one of claims 1 to 8, characterized in that: The first shell (10) is made of metal, and the second shell (20) is made of metal.

10. A controller, characterized in that: The invention comprises a housing assembly (100) according to any one of claims 1 to 9.

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