Housing assembly and control system

Abstract

The utility model provides a housing assembly and control system, the housing assembly comprises a box body, a cover body and an elastic sealing member, the box body defines a mounting cavity with an opening, the opening is covered by the box body, the cover body is provided with a sealing groove, the sealing groove is arranged at the joint of the cover body and the box body, and the elastic sealing member is arranged along the depth direction of the sealing groove. A plurality of pits are formed in the bottom of the sealing groove at intervals, and the elastic sealing piece is arranged in the sealing groove and extruded between the pits and the box body. And the elastic sealing piece can seal the joint of the cover body and the box body so as to protect the mounting cavity from being eroded by water. A plurality of pits are further arranged at the bottom of the sealing groove, the elastic sealing piece is extruded between the pits and the box body, the contact area of the cover body and the elastic sealing piece can be increased by arranging the pits, the position of the elastic sealing piece is relatively kept stable after the elastic sealing piece is compressed, and the elastic sealing piece cannot sink into a gap between the box body and the cover body. And after the elastic sealing element is compressed, the whole compression surface is kept horizontal, so that the waterproof effect of the product is facilitated.

Description

Technical Field

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

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Waterproof sensors usually use special waterproof materials and sealing technology to protect the internal circuits and components from water erosion, which can extend the product's service life and ensure the sensor's detection accuracy. At present, most sensor waterproof structures are formed by a cover and a box body to form a closed space, and a sealing ring is installed at the gap between the shell and the shell. Utility Model Content

[0004] The purpose of the utility model is to at least solve the technical problem that the existing sensor has poor waterproof effect. This purpose is achieved through the following technical solutions:

[0005] The first aspect of the utility model provides a housing assembly, comprising:

[0006] A box body defines a mounting cavity having an opening;

[0007] A cover body, which covers the opening, and is provided with a sealing groove, which is provided at the connection between the cover body and the box body, and a plurality of recessed pits are provided at intervals at the bottom of the sealing groove along the depth direction of the sealing groove;

[0008] An elastic sealing member is arranged in the sealing groove, and at least a portion of the elastic sealing member is pressed into the recess by the box body.

[0009] The housing assembly of the utility model is provided with a cover body on the opening of the box body to realize the sealing of the installation cavity. The cover body is provided with a sealing groove. The sealing groove is provided with an elastic seal. The elastic seal can seal the connection between the cover body and the box body to protect the installation cavity from moisture erosion. The utility model also provides a plurality of pits at the bottom of the sealing groove. The elastic seal is squeezed between the pits and the box body. The provision of the pits can increase the contact area between the cover body and the elastic seal, so that the elastic seal remains relatively stable after being compressed and will not sink into the gap between the box body and the cover body. Moreover, after the elastic seal is compressed, the entire compression surface remains horizontal, which is conducive to product waterproofing.

[0010] In addition, the housing assembly according to the utility model may also have the following additional technical features:

[0011] In some embodiments of the present invention, the sealing groove includes a first groove section and a second groove section connected to the first groove section, the depth of the first groove section is greater than the depth of the second groove section, and the cover body also includes a reinforcing rib assembly arranged in the first groove section, and along the depth direction of the sealing groove, the reinforcing rib assembly defines a plurality of the pits at the bottom of the first groove section.

[0012] In some embodiments of the utility model, the cover body includes a bottom plate, a first limiting rib and a second limiting rib, the first limiting rib and the second limiting rib are respectively arranged on the same side of the bottom plate facing the box body, the first limiting rib and the second limiting rib are respectively arranged in a ring shape, and the sealing groove is formed on the first limiting rib and the second limiting rib parts.

[0013] In some embodiments of the present invention, the first limiting rib is arranged on the outer peripheral side of the second limiting rib, and along the depth direction of the sealing groove, the size of the first limiting rib is larger than the size of the second limiting rib.

[0014] In some embodiments of the utility model, the reinforcing rib assembly includes a first reinforcing rib and a plurality of second reinforcing ribs, the first reinforcing rib is connected to the bottom wall of the sealing groove, the first reinforcing rib extends along the sealing groove, the first reinforcing rib is spaced apart from the first limiting rib and the second limiting rib, and along the width direction of the sealing groove, a plurality of second reinforcing ribs are respectively arranged on both sides of the first reinforcing rib, one end of the second reinforcing rib is connected to the first reinforcing rib, and the other end of the second reinforcing rib is connected to the first limiting rib or the second limiting rib, and two adjacent second reinforcing ribs located on the same side of the first reinforcing rib and the first reinforcing rib define the pit.

[0015] In some embodiments of the present invention, along the width direction of the sealing groove, a plurality of the second reinforcing ribs on both sides of the first reinforcing rib are symmetrically arranged.

[0016] In some embodiments of the present invention, along the width direction of the sealing groove, the cross-section of the pit is rhombus-shaped.

[0017] In some embodiments of the present invention, a groove is provided on a side of the bottom plate facing the box body, and the first groove section is arranged in the groove.

[0018] In some embodiments of the present invention, the elastic sealing member includes a sealing ring, and the sealing ring is installed in the sealing groove along the circumference of the sealing groove.

[0019] The second aspect of the present invention provides a control system, including a sensor, wherein the sensor includes a housing assembly, and the housing assembly is the housing assembly provided in the first aspect of the present invention.

[0020] The control system proposed in the second aspect of the utility model has the same beneficial effects as the housing assembly proposed in the first aspect of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0022] Figure 1 The structure diagram of the housing assembly according to the embodiment of the utility model is schematically shown;

[0023] Figure 2 The structure diagram of the cover body according to the embodiment of the utility model is schematically shown from a first viewing angle;

[0024] Figure 3 The structure diagram of the cover body according to the embodiment of the utility model is schematically shown in a second viewing angle;

[0025] Figure 4 Schematically shows Figure 1 A schematic cross-sectional structure diagram of the A direction;

[0026] Figure 5 Schematically shows Figure 3 A schematic cross-sectional structural diagram of the B direction;

[0027] 100. Shell assembly;

[0028] 10. Box body; 11. Installation cavity;

[0029] 20, cover body; 201, bottom plate; 2011, groove; 202, side plate; 21, pit; 22, sealing groove; 221, first groove section; 222, second groove section; 23, first limiting rib; 24, second limiting rib; 25, first reinforcing rib; 26, second reinforcing rib;

[0030] 30. Sealing ring; DETAILED DESCRIPTION

[0031] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0033] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0034] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0035] like Figures 1 to 5 As shown, the utility model proposes a housing assembly 100, comprising:

[0036] The box body 10 defines a mounting cavity 11 having an opening;

[0037] A cover body 20 is provided on the opening, and a sealing groove 22 is provided on the cover body 20. A plurality of recesses 21 are provided at intervals at the bottom of the sealing groove 22 along the depth direction of the sealing groove 22;

[0038] The elastic sealing member is disposed in the sealing groove 22 , and is squeezed into the recess by the box body 10 .

[0039] It is understandable that the housing assembly 100 of the utility model can be applied to sensors, controllers, actuators, electric control boxes or indoor housings of HVAC equipment, etc. The box body 10 can be a cubic structure with a rectangular cross section, and the installation cavity 11 is defined inside. The installation cavity 11 has an opening, and the electrical components installed in the installation cavity 11, such as the control circuit board of the temperature sensor, are adapted to the opening end of the box body 10. The cover body 20 can be a rectangular cover structure, and a sealing groove 22 can be provided on the side of the cover body 20 facing the box body 10. A plurality of pits 21 are provided at the bottom of the sealing groove 22. The radial cross section of the pit 21 can be a rhombus or elliptical structure, and a plurality of pits 21 can be provided at intervals along the extension direction of the sealing groove 22, and a plurality of rows can be provided along the width direction of the sealing groove 22 to improve the limiting effect of the pit 21 on the elastic seal. The elastic seal can be a sealing strip or a sealing ring 30, etc. The elastic seal has elasticity, and its material can be selected from elastic materials such as rubber or silicone. The elastic seal is arranged in the sealing groove 22 and is squeezed between the bottom of the sealing groove 22 and the box body 10. When the cover body 20 is buckled on the box body 10, the sealing groove 22 is connected to the part of the side wall of the box body 10 located at the opening, and the cover body 20 abuts against the side wall of the box body 10. At this time, the elastic seal is squeezed by the side wall of the box body 10, and the bottom of the elastic seal abuts against the pit 21, and the pit 21 forms a multi-faceted structure at the bottom of the sealing groove 22, so that the contact area between the elastic seal and the cover body 20 is increased, and the friction between the two is increased, so that the elastic seal is limited in the sealing groove 22, the phenomenon of the elastic seal running off is reduced, and the waterproof sealing performance between the box body 10 and the cover body 20 is further improved.

[0040] The housing assembly 100 of the utility model is provided with a cover body 20 on the opening of the box body 10 to achieve the sealing of the installation cavity 11. The cover body 20 is provided with a sealing groove 22. The sealing groove 22 is provided with an elastic seal. The elastic seal can seal the connection between the cover body 20 and the box body 10 to protect the installation cavity 11 from moisture erosion. The utility model also provides a plurality of pits 21 at the bottom of the sealing groove 22. The elastic seal is squeezed between the pits 21 and the box body 10. The provision of the pits 21 can increase the contact area between the cover body 20 and the elastic seal, so that the elastic seal is relatively stable after being compressed and will not sink into the gap between the box body 10 and the cover body 20. Moreover, after the elastic seal is compressed, the entire compression surface remains horizontal, which is conducive to product waterproofing.

[0041] like Figure 2-3 As shown, in some embodiments of the utility model, the sealing groove 22 includes a first groove section 221 and a second groove section 222, the depth of the first groove section 221 is greater than the depth of the second groove section 222, and the cover body 20 also includes a reinforcing rib assembly arranged in the first groove section 221, and along the depth direction of the sealing groove 22, the reinforcing rib assembly defines a plurality of pits 21 at the bottom of the first groove section 221.

[0042] It can be understood that on some covers 20 with uneven thickness, for example, along the depth direction of the sealing groove 22, the bottom plate 201 of the cover 20 is a Z-shaped cover 20, and the depth of the sealing groove 22 is also uneven. In order to reduce the defects of thickness marks and shrinkage after injection molding of the cover 20, a reinforcing rib assembly can be set at the bottom of the first groove section 221 with a deeper depth. The reinforcing rib assembly has a grid structure, and the reinforcing rib assembly and the groove wall of the sealing groove 22 of the cover 20 define a plurality of pits 21 to make the wall thickness of the cover 20 more uniform, thereby reducing the defects of thickness marks and shrinkage after injection molding of the cover 20. The depth of the transition groove section between the first groove section 221 and the second groove section 222 gradually transitions from the depth of the first groove section 221 to the depth of the second groove section 222. A pit 21 may also be provided in the transition groove section. The depth of the pit 21 is shallower than that of the pit 21 provided in the first groove section 221, which can also achieve the beneficial effect of reducing thickness printing and shrinkage.

[0043] like Figure 2-3 As shown, in some embodiments of the utility model, the cover body 20 includes a bottom plate 201 and a side plate 202, the side plate 202 extends along the circumference of the bottom plate 201 and is annular, along the thickness direction of the cover body 20, the first end of the side plate 202 is connected to the bottom plate 201, and the second end of the side plate 202 is connected to the box body 10 and is provided with a sealing groove 22.

[0044] It can be understood that the bottom plate 201 can be a rectangular plate structure, the side plate 202 can be arranged along the outer edge of the bottom plate 201 and extend along the circumference of the bottom plate 201, and the side plate 202 is an annular structure, that is, the side plate 202 includes a plurality of side plates connected in sequence and end to end, one end of the side plate 202 is connected to the bottom plate 201, which can be achieved by integral molding, and the other end of the side plate 202 is provided with a sealing groove 22, and this end abuts against the open end of the box body 10 when the cover body 20 is buckled on the box body 10. At this time, the box body 10 is sealed in the sealing groove 22, and the elastic sealing member in the sealing groove 22 abuts against the box body 10, and is compressed by the box body 10 and the pit 21, forming a waterproof structure part, and improving the waterproof effect of the connection between the box body 10 and the box cover.

[0045] like Figure 2-5As shown, in some embodiments of the utility model, the cover body 20 also includes a first limiting rib 23 and a second limiting rib 24, and the first limiting rib 23 and the second limiting rib 24 are both arranged at the second end of the side plate 202, and a sealing groove 22 is formed between the first limiting rib 23, the second limiting rib 24 and the side plate 202.

[0046] It can be understood that the sealing groove 22 is defined by the first limiting rib 23 and the second limiting rib 24 arranged at the second end of the side plate 202. The sealing groove 22 is formed by arranging two reinforcing ribs at the second end of the side plate 202, namely the first limiting rib 23 and the second limiting rib 24 arranged at intervals. The first limiting rib 23 and the second limiting rib 24 can both extend along the circumference of the side plate 202 to form an annular structure, or can extend along the circumference of the side plate 202 to form a semi-annular structure. It can be specifically arranged according to the actual structure of the connection between the cover body 20 and the box body 10. For example, when the cover body 20 is pivotally connected to the box body 10, and the sealing on one side where the cover body 20 is pivotally connected to the box body 10 is better or is provided with other sealing structures, the sealing groove 22 may not be provided on this side, that is, the sealing groove 22 can be arranged in a U-shape.

[0047] like Figure 2-3 As shown, in some embodiments of the present invention, the sealing groove 22 extends along the circumference of the side plate 202 and is annular.

[0048] It can be understood that the sealing groove 22 can be an annular structure, such as a mouth-shaped structure, so that the sealing groove 22 extends along the circumference of the side plate 202 and is adapted to the opening of the box body 10 to provide a comprehensive sealing effect. When the cover body 20 is snapped on the box body 10, the sealing groove 22 is in contact with or close to a portion of the opening end of the box body 10, so that the elastic sealing member in the sealing groove 22 is compressed between the sealing groove 22 and the box body 10, further improving the waterproof effect between the box body 10 and the cover body 20.

[0049] like Figure 2-5 As shown, in some embodiments of the present invention, the elastic sealing member includes a sealing ring 30 , and the sealing ring 30 is installed in the sealing groove 22 along the circumference of the sealing groove 22 .

[0050] It is understandable that the elastic sealing member can be a sealing ring 30, which is an annular structure and is compatible with the annular sealing groove 22, and can provide a seal covering the opening around the connection between the cover body 20 and the box body 10, further improving the waterproof effect. Specifically, the radial cross-section of the sealing ring 30 can be circular or elliptical, so as to facilitate installation in the sealing groove 22, and is conducive to being squeezed by the cover body 20 and the box body 10 to produce a compression surface, further improving the sealing effect. More specifically, when the sealing ring 30 is compressed and installed in the sealing groove 22, the compression amount of the sealing ring 30 is about 15%, so that the sealing ring 30 can be completely plugged in the sealing ring 30 assembly space between the sealing groove 22 and the box body 10.

[0051] like Figure 5 As shown, in some embodiments of the present invention, the first limiting rib 23 is arranged on the outer peripheral side of the second limiting rib 24 , and along the depth direction of the sealing groove 22 , the height of the first limiting rib 23 is greater than the height of the second limiting rib 24 .

[0052] It can be understood that the first limiting rib 23 is arranged on the periphery of the second limiting rib 24. When the first limiting rib 23 and the second limiting rib 24 are both annular structures, the second limiting rib 24 is located in the area surrounded by the first limiting rib 23, and the two together define a sealing groove 22 for the sealing ring 30 to be installed therein. The height of the first limiting rib 23 located on the periphery is higher than the height of the second limiting rib 24, so that when the sealing ring 30 is installed, it can be installed from the inner side of the first limiting rib 23, and the sealing ring 30 is pressed into the sealing groove 22. The height difference between the first limiting rib 23 and the second limiting rib 24 makes it convenient for the sealing ring 30 to be installed to the sealing groove 22 by pressing, and at the same time, the raised part of the first limiting rib 23 prevents the sealing ring 30 from deviating from the sealing groove 22 when pressed. Specifically, the second limiting rib 24 can be the same height as the sealing ring 30, and the height of the first limiting rib 23 is less than twice the height of the sealing ring 30.

[0053] like Figure 2-3 As shown, in some embodiments of the utility model, the reinforcing rib assembly also includes a first reinforcing rib 25 and a plurality of second reinforcing ribs 26, the first reinforcing rib 25 is connected to the bottom end of the sealing groove 22, the first reinforcing rib 25 extends along the sealing groove 22, the first reinforcing rib 25 is spaced apart from the first limiting rib 23 and the second limiting rib 24, and along the width direction of the sealing groove 22, a plurality of second reinforcing ribs 26 are respectively arranged on both sides of the first reinforcing rib 25, one end of the second reinforcing rib 26 is connected to the first reinforcing rib 25, and the other end of the second reinforcing rib 26 is connected to the first limiting rib 23 or the second limiting rib 24, and the two adjacent second reinforcing ribs 26 located on the same side of the first reinforcing rib 25 define a pit 21 with the first reinforcing rib 25.

[0054] It is understandable that the plurality of pits 21 at the bottom of the sealing groove 22 can be defined by a first reinforcing rib 25 and a plurality of second reinforcing ribs 26 arranged at the bottom of the sealing groove 22, the extension direction of the first reinforcing rib 25 is the same as the direction of the sealing groove 22, and the first reinforcing rib 25 is spaced from the first limiting rib 23 and the second limiting rib 24 to leave a space for defining the pit 21, and a plurality of second reinforcing ribs 26 are arranged on both sides of the first reinforcing rib 25, so that the two second reinforcing ribs 26 located on the same side, the first reinforcing rib 25 and the bottom wall of the sealing groove 22 jointly define the pit 21, and the shape of the pit 21 can be a rectangle, a rhombus or a trapezoid, etc., and its shape is mainly determined by the angle between the second reinforcing rib 26 and the first reinforcing rib 25. The first reinforcing rib 25 and the second reinforcing rib 26 can be integrally molded with the cover body 20 by integral injection molding to improve the overall strength. The first reinforcing rib 25 and the second reinforcing rib 26 form a fishbone-shaped structure, which can increase the contact area with the sealing ring 30 and prevent the sealing ring 30 from partially sinking into the pit 21. In addition, the pits 21 can make the shell assembly 100 have a uniform wall thickness. After the cover body 20 of the shell assembly 100 is injection molded, shrinkage or thickness printing occurs. In the projection along the depth direction of the sealing groove 22, the ratio of the sum of the areas of the first reinforcing ribs 25 and the second reinforcing ribs 26 to the sum of the areas of all the pits 21 is approximately 3:1.

[0055] like Figure 2-5 As shown, in some embodiments of the present invention, along the width direction of the sealing groove 22 , the second reinforcing ribs 26 located on both sides of the first reinforcing rib 25 are symmetrically arranged with respect to the first reinforcing rib 25 .

[0056] It can be understood that the second reinforcing ribs 26 are symmetrically distributed on both sides of the first reinforcing rib 25, so that the pits 21 formed on both sides of the first reinforcing rib 25 can be distributed more evenly to facilitate production, and the regularly arranged pits 21 can have a good limiting and extrusion effect on the sealing ring 30, further improving the overall waterproof effect.

[0057] like Figure 2-3 As shown, in some embodiments of the present invention, along the width direction of the sealing groove 22, the cross section of the pit 21 is rhombus-shaped.

[0058] It can be understood that the pit 21 can be a diamond-shaped structure, which is achieved by the second reinforcing rib 26 being arranged at an angle with the first reinforcing rib 25, and the two adjacent second reinforcing ribs 26 located on the same side of the first reinforcing rib 25 being arranged in parallel. The diamond-shaped pit 21 combined with the herringbone-shaped reinforcing rib structure can make the shell assembly 100 have a uniform wall thickness, thereby preventing the cover body 20 of the shell assembly 100 from shrinking or having thickness marks after injection molding. In the projection along the depth direction of the sealing groove 22, the ratio of the sum of the areas of the first reinforcing rib 25 and the second reinforcing rib 26 to the sum of the areas of all the pits 21 is approximately 3:1.

[0059] like Figure 2-3 As shown, in some embodiments of the present invention, a groove 2011 is provided on one side of the bottom plate 201 facing the box body 10 , and the first groove section 221 is disposed in the groove 2011 .

[0060] It can be understood that a mounting groove for mounting a decorative panel can be provided on the side of the bottom plate 201 facing away from the box body 10, and the mounting groove allows the bottom plate 201 to protrude toward the box body 10 at this location. In order to maintain the uniform wall thickness of the cover body 20, a groove 2011 is formed on the side of the bottom plate 201 facing the box body 10 corresponding to the portion outside the mounting groove. The height of the first limiting rib 23 and the second limiting rib 24 in the groove 2011 is greater than the height of the first limiting rib 23 and the second limiting rib 24 in the same position. At this time, a pit 21 can be provided in the first groove section 221, so that the shell assembly 100 has a uniform wall thickness, thereby reducing the shrinkage or thickness printing phenomenon of the cover body 20 of the shell assembly 100 after injection molding.

[0061] The second aspect of the present invention provides a control system, including a sensor, wherein the sensor includes a housing assembly, and the housing assembly is the sensor provided in the first aspect of the present invention.

[0062] The control system proposed in the second aspect of the utility model has the same beneficial effects as the sensor proposed in the first aspect of the utility model. The control system proposed in the second aspect of the utility model can be a control system of an air conditioner, and the sensor can be a temperature sensor. The housing assembly of the utility model can also be applied to other sensors, controllers, actuators, electric control boxes or indoor unit housings of HVAC equipment, etc.

[0063] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A housing assembly, characterized in that: include: A box body defines a mounting cavity having an opening; A cover body, which covers the opening, the cover body is provided with a sealing groove, and a plurality of recessed pits are provided at intervals at the bottom of the sealing groove along the depth direction of the sealing groove; An elastic sealing member is arranged in the sealing groove, and at least a portion of the elastic sealing member is pressed into the recess by the box body.

2. The housing assembly according to claim 1, characterized in that: The sealing groove includes a first groove section and a second groove section connected to the first groove section, the depth of the first groove section is greater than the depth of the second groove section, and the cover body also includes a reinforcing rib assembly arranged in the first groove section, and along the depth direction of the sealing groove, the reinforcing rib assembly defines a plurality of pits at the bottom of the first groove section.

3. The housing assembly according to claim 2, characterized in that: The cover body includes a bottom plate, a first limiting rib and a second limiting rib, the first limiting rib and the second limiting rib are respectively arranged on the same side of the bottom plate facing the box body, the first limiting rib and the second limiting rib are respectively arranged in a ring shape, and the sealing groove is formed on the first limiting rib and the second limiting rib.

4. The housing assembly according to claim 3, characterized in that: The first limiting rib is arranged on the outer peripheral side of the second limiting rib, and along the depth direction of the sealing groove, the size of the first limiting rib is larger than the size of the second limiting rib.

5. The housing assembly according to claim 3, characterized in that: The reinforcing rib assembly includes a first reinforcing rib and a plurality of second reinforcing ribs, the first reinforcing rib is connected to the bottom wall of the sealing groove, the first reinforcing rib extends along the sealing groove, the first reinforcing rib is spaced apart from the first limiting rib and the second limiting rib, and a plurality of second reinforcing ribs are respectively arranged on both sides of the first reinforcing rib along the width direction of the sealing groove, one end of the second reinforcing rib is connected to the first reinforcing rib, and the other end of the second reinforcing rib is connected to the first limiting rib or the second limiting rib, and two adjacent second reinforcing ribs located on the same side of the first reinforcing rib and the first reinforcing rib define the pit.

6. The housing assembly according to claim 5, characterized in that: Along the width direction of the sealing groove, the plurality of second reinforcing ribs on both sides of the first reinforcing rib are symmetrically arranged.

7. The housing assembly according to claim 6, characterized in that: Along the width direction of the sealing groove, the cross section of the pit is rhombus-shaped.

8. The housing assembly according to claim 3, characterized in that: A groove is provided on one side of the bottom plate facing the box body, and the first groove section is arranged in the groove.

9. The housing assembly according to any one of claims 1 to 8, characterized in that: The elastic sealing member comprises a sealing ring, and the sealing ring is installed in the sealing groove along the circumference of the sealing groove.

10. A control system, characterized in that: The invention comprises a sensor, wherein the sensor comprises a housing assembly, and the housing assembly is the housing assembly according to any one of claims 1 to 9.

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