Housing assembly

Abstract

The utility model discloses a housing assembly, which comprises a housing provided with a first air hole penetrating through the housing in the thickness direction of the housing, and a second air hole penetrating through the housing in the thickness direction of the housing. The waterproof breathable film is arranged on the inner surface of the shell and is opposite to the first breathable hole; the cover plate covers the inner surface of the shell and is connected with the shell, the waterproof breathable film is located between the cover plate and the shell, and the cover plate is provided with second breathable holes opposite to the first breathable holes. According to the shell assembly provided by the embodiment of the utility model, when the pressure in the shell is increased, the gas in the shell is discharged to the outside through the second air hole, the waterproof air-permeable membrane and the first air hole, so that the pressure relief is realized, the safety of an electronic part applying the shell is ensured, and the shell assembly is high in production efficiency and low in production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a shell component. Background Art

[0002] Electronic components located in the vehicle chassis or engine compartment face relatively harsh conditions. During driving, they will be impacted by high temperature, high-pressure sand and gravel or rain. Therefore, electronic components need to have a high level of waterproof function during wading, and the pressure inside the electronic components needs to be balanced at all times under high temperature conditions.

[0003] In the prior art, a mounting hole for the breathable valve is usually opened in the housing of the electronic component, and the pressure relief and ventilation of the electronic component are achieved through the waterproof breathable membrane of the breathable valve, and the waterproofing of the electronic component is achieved through the interference fit between the rubber ring of the breathable valve and the housing. However, in order to install the breathable valve, the housing needs to be pre-opened, and the surface roughness treatment is performed on the inner wall of the mounting hole, and tooling equipment needs to be invested in the production line to install the breathable valve, which has low production efficiency and increased production costs. At the same time, the rubber ring will age if it is exposed to high temperature for a long time, which will affect the waterproof performance and there is a risk of water seepage. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a housing assembly, which can achieve high production efficiency and low production cost while ensuring the safety of electronic components using the housing.

[0005] According to the shell component of the embodiment of the utility model, it includes: a shell, the shell is provided with a first air hole penetrating the shell in the thickness direction of the shell; a waterproof breathable membrane, the waterproof breathable membrane is provided on the inner surface of the shell and is arranged opposite to the first air hole; a cover plate, the cover plate is covered on the inner surface of the shell and connected to the shell, the waterproof breathable membrane is located between the cover plate and the shell, and the cover plate has a second air hole arranged opposite to the first air hole.

[0006] According to the shell assembly of the utility model embodiment, the shell is provided with a first air hole penetrating the shell in the thickness direction of the shell, the waterproof air-permeable membrane is provided on the inner surface of the shell and is arranged opposite to the first air hole, the cover plate is provided on the inner surface of the shell and is connected to the shell, the waterproof air-permeable membrane is located between the cover plate and the shell, and the cover plate has a second air hole arranged opposite to the first air hole. When the pressure in the shell increases, the gas in the shell is discharged to the outside through the second air hole, the waterproof air-permeable membrane and the first air hole, thereby achieving pressure relief, ensuring the safety of electronic components using the shell, and the shell assembly has high production efficiency and low production cost.

[0007] In some embodiments of the utility model, a fixing column is provided on the inner surface of the shell, the waterproof breathable membrane has a first fixing hole, the cover plate has a second fixing hole, and the fixing column passes through the first fixing hole and the second fixing hole in sequence.

[0008] In some embodiments of the present invention, there are multiple fixing columns, and the multiple fixing columns are arranged at intervals along the circumferential direction of the first air vent, and the first fixing hole and the second fixing hole are multiple corresponding to the multiple fixing columns one by one.

[0009] In some embodiments of the present invention, the outer periphery of the cover plate facing the shell has a boss, the boss extends along the circumferential direction of the cover plate, and the shell has a sealing groove matching the boss on the side facing the cover plate.

[0010] In some embodiments of the utility model, a mounting groove is provided on the inner surface of the shell, the first air hole passes through the bottom wall of the mounting groove, the waterproof breathable membrane is arranged in the mounting groove, and along the thickness direction of the cover plate, at least a portion of the cover plate is located in the mounting groove.

[0011] In some embodiments of the present invention, a surface of the cover plate facing away from the shell is flush with an inner surface of the shell.

[0012] In some embodiments of the present invention, a protrusion is provided on the inner surface of the shell, and the mounting groove is provided on the free end surface of the protrusion.

[0013] In some embodiments of the present invention, the shell and the cover plate are welded together or the shell and the cover plate are an integral injection molded part.

[0014] In some embodiments of the present invention, the waterproof breathable membrane has a thickness of 0.15 mm-0.5 mm.

[0015] In some embodiments of the present invention, the present invention further includes: a protective structure, the protective structure is arranged on the housing

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the 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 easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a structural diagram of a housing assembly according to an embodiment of the utility model;

[0019] Figure 2 is an exploded view of a housing assembly according to an embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional view of a housing assembly according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] 100. Shell assembly;

[0023] 1. Shell; 11. First vent hole; 12. Fixing column; 13. Sealing groove; 14. Mounting groove; 15. Protrusion;

[0024] 2. Waterproof breathable membrane; 21. First fixing hole;

[0025] 3. Cover plate; 31. Second vent hole; 32. Second fixing hole; 33. Boss;

[0026] 4. Protective structure; 41. Third vent hole. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present utility model, it is necessary to understand 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 indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The housing assembly 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0031] like Figure 1-Figure 3 As shown, the housing assembly 100 according to the embodiment of the utility model comprises: a housing 1, a waterproof breathable membrane 2 and a cover plate 3. The housing 1 is provided with a first air hole 11 penetrating the housing 1 in the thickness direction of the housing 1, the waterproof breathable membrane 2 is provided on the inner surface of the housing 1 and is arranged opposite to the first air hole 11, the cover plate 3 is provided on the inner surface of the housing 1 and is connected to the housing 1, the waterproof breathable membrane 2 is located between the cover plate 3 and the housing 1, and the cover plate 3 has a second air hole 31 arranged opposite to the first air hole 11.

[0032] It is understandable that the housing 1 can be the housing of electronic components such as an engine controller, a motor control unit, a sensor or a gearbox controller. At the same time, the working principle of the waterproof breathable membrane 2 is that due to the large distance between gas molecules, they can pass through the air holes of the waterproof breathable membrane 2 during the diffusion movement, while the distance between liquid molecules is smaller than the distance between the air holes, and under the action of surface tension, the liquid molecules cannot pass through the waterproof breathable membrane 2, thereby achieving waterproof and breathable properties of the waterproof breathable membrane 2. Optionally, the waterproof breathable membrane 2 is a polymer PE membrane.

[0033] Thus, the first vent hole 11 is connected to the external environment, and the waterproof breathable membrane 2 and the second breathable hole 31 are respectively arranged opposite to the first breathable hole 11. When the pressure in the housing 1 increases, the gas in the housing 1 is discharged to the outside through the second breathable hole 31, the waterproof breathable membrane 2 and the first breathable hole 11, thereby achieving pressure relief and ensuring the safety of the electronic components using the housing 1. At the same time, the waterproof breathable membrane 2 ensures the waterproof effect of the housing 1, prevents liquid from entering the housing 1 from the waterproof breathable membrane 2, and further ensures the safety of the housing assembly 100. In addition, the cover plate 3 is connected to the housing 1 and the waterproof breathable membrane 2 is located between the cover plate 3 and the housing 1, thereby achieving the installation of the waterproof breathable membrane 2, effectively preventing the waterproof breathable membrane 2 from falling off, and ensuring the overall reliability of the housing assembly 100.

[0034] Compared with the prior art, since the housing assembly 100 of the utility model has the effect of waterproof and breathable, there is no need to purchase a pressure relief valve separately, thereby reducing the steps of pre-opening the housing 1 to adapt the installation hole of the pressure relief valve and roughening the inner wall surface of the installation hole, thereby improving the production efficiency of the housing assembly 100 and reducing the production cost. At the same time, it effectively avoids the occurrence of water seepage caused by aging of the rubber ring of the pressure relief valve, and ensures the waterproof effect of the housing assembly 100.

[0035] According to the shell assembly 100 of the embodiment of the utility model, the shell 1 is provided with a first air hole 11 penetrating the shell 1 in the thickness direction of the shell 1, the waterproof air-permeable membrane 2 is provided on the inner surface of the shell 1 and is arranged opposite to the first air hole 11, the cover plate 3 is covered on the inner surface of the shell 1 and is connected to the shell 1, the waterproof air-permeable membrane 2 is located between the cover plate 3 and the shell 1, and the cover plate 3 has a second air hole 31 arranged opposite to the first air hole 11. When the pressure in the shell 1 increases, the gas in the shell 1 is discharged to the outside through the second air hole 31, the waterproof air-permeable membrane 2 and the first air hole 11, thereby achieving pressure relief, ensuring the safety of electronic components using the shell 1, and the shell assembly 100 has high production efficiency and low production cost.

[0036] In some embodiments of the present invention, Figure 1-Figure 3 As shown, a fixing column 12 is provided on the inner surface of the housing 1, the waterproof breathable membrane 2 has a first fixing hole 21, the cover plate 3 has a second fixing hole 32, and the fixing column 12 is sequentially penetrated with the first fixing hole 21 and the second fixing hole 32. Thus, the housing 1 is connected with the waterproof breathable membrane 2 and the cover plate 3 by sequentially penetrating the first fixing hole 21 and the second fixing hole 32 through the fixing column 12, thereby realizing the installation of the waterproof breathable membrane 2 and ensuring the reliability of the housing assembly 100 as a whole.

[0037] In some embodiments of the present invention, Figure 1-Figure 3 As shown, there are multiple fixing columns 12, and the multiple fixing columns 12 are arranged at intervals along the circumferential direction of the first air permeable hole 11, and the first fixing holes 21 and the second fixing holes 32 are multiple corresponding to the multiple fixing columns 12. Therefore, the multiple first fixing holes 21 and the multiple second fixing holes 32 corresponding to the multiple fixing columns 12 are respectively and sequentially penetrated, thereby further ensuring the connection reliability between the housing 1 and the waterproof breathable membrane 2 and the cover plate 3, and further improving the overall reliability of the housing assembly 100.

[0038] In some embodiments of the present invention, Figure 1-Figure 3As shown, the outer peripheral edge of the cover plate 3 facing the housing 1 has a boss 33, and the boss 33 extends along the circumferential direction of the cover plate 3. The housing 1 has a sealing groove 13 that cooperates with the boss 33 on the side facing the cover plate 3. Therefore, the connection between the housing 1 and the cover plate 3 is further ensured by the cooperation between the boss 33 and the sealing groove 13, thereby further pressing the waterproof breathable membrane 2, so that the two surfaces of the waterproof breathable membrane 2 are completely attached to the housing 1 and the cover plate 3, respectively, effectively preventing the waterproof breathable membrane 2 from falling off, thereby improving the reliability of the housing assembly 100.

[0039] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the inner surface of the housing 1 is provided with a mounting groove 14, the first vent hole 11 penetrates the bottom wall of the mounting groove 14, the waterproof breathable membrane 2 is arranged in the mounting groove 14, and at least a part of the cover plate 3 is located in the mounting groove 14 along the thickness direction of the cover plate 3. Therefore, the arrangement of the mounting groove 14 plays a certain foolproof role in the assembly process of the waterproof breathable membrane 2 and the cover plate 3, thereby improving the production efficiency of the housing assembly 100. At the same time, the waterproof breathable membrane 2 is arranged in the mounting groove 14, and at least a part of the cover plate 3 is located in the mounting groove 14 along the thickness direction of the cover plate 3. After the housing 1 is connected to the cover plate 3, the waterproof breathable membrane 2 is further prevented from falling off, thereby improving the overall reliability.

[0040] Furthermore, the outer peripheral edge of the cover plate 3 facing the housing 1 has a boss 33, the boss 33 extends along the circumferential direction of the cover plate 3, and the housing 1 has a sealing groove 13 matched with the boss 33 on the side facing the cover plate 3, and the sealing groove 13 is arranged on the bottom wall of the mounting groove 14. Thus, the connection between the housing 1 and the cover plate 3 is further ensured, thereby further pressing the waterproof breathable membrane 2, and further preventing the waterproof breathable membrane 2 from falling off.

[0041] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the surface of the cover plate 3 facing away from the housing 1 is flush with the inner surface of the housing 1. Thus, by such an arrangement, the entire cover plate 3 is within the mounting groove 14, so that after the housing 1 and the cover plate 3 are connected, the waterproof breathable membrane 2 is further prevented from falling off, thereby improving the overall reliability. At the same time, by making the surface of the cover plate 3 facing away from the housing 1 flush with the inner surface of the housing 1, it is convenient to arrange other components within the housing 1, thereby improving the space utilization.

[0042] In some embodiments of the present invention, Figure 1-Figure 3 As shown, a protrusion 15 is provided on the inner surface of the housing 1, and a mounting groove 14 is provided on the free end surface of the protrusion 15. Thus, the mounting groove 14 is formed by such a setting, so that the waterproof breathable membrane 2 can be arranged in the mounting groove 14. Furthermore, the surface of the cover plate 3 facing away from the housing 1 is flush with the inner surface of the boss 33.

[0043] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the housing 1 is connected to the cover plate 3 by welding or the housing 1 and the cover plate 3 are an integral injection molded part. Thus, the reliability of the connection between the housing 1 and the cover plate 3 is further ensured by welding the housing 1 and the cover plate 3 or the housing 1 and the cover plate 3 are an integral injection molded part, thereby effectively preventing the waterproof breathable membrane 2 from falling off and improving the reliability of the housing assembly 100.

[0044] Furthermore, a fixing column 12 is provided on the inner surface of the housing 1, the waterproof breathable membrane 2 has a first fixing hole 21, the cover plate 3 has a second fixing hole 32, the fixing column 12 is sequentially penetrated with the first fixing hole 21 and the second fixing hole 32, and the fixing column 12 is welded to the cover plate 3 to achieve the welding connection between the housing 1 and the cover plate 3. Furthermore, the housing 1 and the cover plate 3 are made of the same material, and the housing 1 and the cover plate 3 are ultrasonically welded, thereby effectively avoiding the generation of gaps at the welding connection, thereby further ensuring the reliability of the connection between the two.

[0045] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the thickness of the waterproof breathable membrane 2 is 0.15mm-0.5mm. It is understandable that the thickness of the waterproof breathable membrane 2 is 0.15mm, 0.20mm, 0.25mm, 0.30mm, 0.35mm, 0.40mm, 0.45mm or 0.5mm, thereby, by setting the thickness of the waterproof breathable membrane 2, the overall reliability of the housing assembly 100 is ensured while achieving waterproof and breathable properties.

[0046] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the housing assembly 100 also includes a protective structure 4. The protective structure 4 is arranged on the outer surface of the housing 1 and is covered at the first air hole 11, and the outer peripheral wall of the protective structure 4 has a third air hole 41. Therefore, when the pressure in the housing 1 increases, the gas in the housing 1 is discharged to the outside through the second air hole 31, the waterproof air-permeable membrane 2, the first air hole 11 and the third air hole 41, thereby achieving pressure relief and ensuring the safety of the electronic components using the housing 1. At the same time, the protective structure 4 is covered at the first air hole 11 and the third air hole 41 is opened on the outer peripheral wall of the protective structure 4, so that the protective structure 4 effectively protects the waterproof air-permeable membrane 2, effectively prevents foreign matter from directly hitting the top of the waterproof air-permeable membrane 2, and improves reliability. In addition, when the protective structure 4 is an injection molded part, the provision of the third air hole 41 also facilitates the molding and demolding of the protective structure 4 when the mold is in the running position, thereby improving production efficiency.

[0047] Furthermore, the housing 1 and the protective structure 4 are an integrated piece, which further improves the structural reliability of the housing assembly 100 and facilitates the production of the housing 1 .

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] 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 spirit 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, characterized in that: include: A shell, wherein the shell is provided with a first vent hole penetrating through the shell in a thickness direction of the shell; A waterproof breathable membrane, the waterproof breathable membrane is arranged on the inner surface of the shell and is arranged opposite to the first breathable hole; A cover plate is disposed on the inner surface of the shell and connected to the shell, the waterproof breathable membrane is located between the cover plate and the shell, and the cover plate has a second breathable hole disposed opposite to the first breathable hole.

2. The housing assembly according to claim 1, characterized in that: A fixing column is provided on the inner surface of the shell, the waterproof breathable membrane has a first fixing hole, the cover plate has a second fixing hole, and the fixing column passes through the first fixing hole and the second fixing hole in sequence.

3. The housing assembly according to claim 2, characterized in that: There are a plurality of fixing columns, and the plurality of fixing columns are arranged at intervals along the circumferential direction of the first air vent, and the first fixing hole and the second fixing hole are both a plurality of fixing columns corresponding one-to-one to the plurality of fixing columns.

4. The housing assembly according to claim 1, characterized in that: The outer peripheral edge of the cover plate on one side facing the shell has a boss, and the boss extends along the circumferential direction of the cover plate. The shell has a sealing groove matched with the boss on one side facing the cover plate.

5. The housing assembly according to claim 1, characterized in that: The inner surface of the shell has a mounting groove, the first air hole penetrates the bottom wall of the mounting groove, the waterproof breathable membrane is arranged in the mounting groove, and along the thickness direction of the cover plate, at least part of the cover plate is located in the mounting groove.

6. The housing assembly according to claim 5, characterized in that: The surface of the cover plate facing away from the housing is flush with the inner surface of the housing.

7. The housing assembly according to claim 5, characterized in that: A protrusion is arranged on the inner surface of the shell, and the mounting groove is arranged on the free end surface of the protrusion.

8. The housing assembly according to claim 1, characterized in that: The shell and the cover plate are connected by welding or the shell and the cover plate are an integral injection molded part.

9. The housing assembly according to claim 1, characterized in that: The thickness of the waterproof and breathable membrane is 0.15mm-0.5mm.

10. The housing assembly according to claim 1, characterized in that Also includes: A protective structure is provided on the outer surface of the shell and covers the first air hole, and the outer peripheral wall of the protective structure has a third air hole.

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