CN112601408B - Electrical apparatus box, controller and ECAS pneumatic system - Google Patents
Electrical apparatus box, controller and ECAS pneumatic system Download PDFInfo
- Publication number
- CN112601408B CN112601408B CN202011569068.3A CN202011569068A CN112601408B CN 112601408 B CN112601408 B CN 112601408B CN 202011569068 A CN202011569068 A CN 202011569068A CN 112601408 B CN112601408 B CN 112601408B
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- 238000007789 sealing Methods 0.000 claims abstract description 62
- 239000007769 metal material Substances 0.000 claims abstract description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 9
- 230000001934 delay Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- FPWNLURCHDRMHC-UHFFFAOYSA-N 4-chlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1 FPWNLURCHDRMHC-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FXNSVEQMUYPYJS-UHFFFAOYSA-N 4-(2-aminoethyl)benzenesulfonamide Chemical compound NCCC1=CC=C(S(N)(=O)=O)C=C1 FXNSVEQMUYPYJS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20854—Heat transfer by conduction from internal heat source to heat radiating structure
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application provides an electric box, a controller and an ECAS pneumatic system, wherein the electric box comprises a cover plate and an electric box body, an electric box through hole is formed in one side surface of the electric box body, and a cover plate sealing groove is formed in the periphery of the electric box through hole; the cover plate is arranged in the cover plate sealing groove and seals the through hole of the electric box; a cover plate sealing ring is arranged in the cover plate sealing groove and clamped between the cover plate and the cover plate sealing groove; the cover plate is made of metal materials; the technical scheme provided by the application can give consideration to sealing and heat dissipation performance, ensures the sealing performance of the electrical box, and can realize good heat dissipation effect, so that the controller has higher protection level, improves the service performance and delays the service life of the controller.
Description
Technical Field
The application belongs to the technical field of electrical boxes, and particularly relates to an electrical box, a controller and an ECAS pneumatic system.
Background
The running condition of the automobile is complex, and particularly the working environment of the chassis is particularly bad; in fact, automobile chassis parts are subject to erosion by dust fly ash, droplet mist throughout the year, which can easily lead to safety problems. The existing ECAS, AEBS and other controllers are usually installed on an automobile chassis, the protection level of an electrical box of the controller is generally not more than IP54, and large gaps exist at the combining positions of different structural materials, so that the controllers have large safety risks, even though the controllers are sealed; when meeting water, water can enter the circuit board from the gap of the electrical box, so that the circuit in the controller is easily short-circuited, and serious safety problems are caused.
In the prior art, in order to achieve a higher protection level, the solution is mainly from the sealing point of view; as disclosed in chinese patent CN206685595U, an electronic control system protection shell mainly includes a housing, a first sealing ring, a circuit board connector, a rear cover, a second sealing ring, a connector assembly, a connector terminal, and a waterproof plug crimped on the connector terminal, where the sealing scheme used in the scheme disclosed in the patent is more conventional, the severe working condition of the chassis of the automobile is not really considered, and the sealing structure is concentrated at the terminal of the PCB, and the problem of stress concentration is more remarkable; more seriously, in the working process of the electronic component, due to the heat effect of current, the PCB can collect a large amount of heat, and if the whole structure of the electric box is completely sealed for protection, the heat generated by the controller can not be dissipated in time, so that the performance of the controller is seriously affected.
Based on the technical problems existing in the electrical box, no relevant solution exists yet; there is therefore an urgent need to seek an effective solution to the above problems.
Disclosure of Invention
The application aims to solve the defects in the prior art, provides an electrical box, a controller and an ECAS pneumatic system, and aims to solve the problems of sealing and heat dissipation of the existing electrical box.
The application provides an electric appliance box which comprises an electric appliance box body and a cover plate, wherein one side surface of the electric appliance box body is provided with an electric appliance box through hole, the other side surface opposite to the side surface is provided with a connector opening, the cover body and the electric appliance box through hole are in sealing fit together, and the cover body has heat conductivity.
Further optionally, a cover plate sealing groove is arranged at the periphery of the through hole of the electrical box; the cover plate is arranged in the cover plate sealing groove to seal the through hole of the electric box; and a cover plate sealing ring is arranged in the cover plate sealing groove and is clamped between the cover plate and the cover plate sealing groove.
Further optionally, the electrical box through hole is arranged on the rear side surface of the electrical box body, and the connector opening is arranged on the front side surface of the electrical box body; the connector opening is smaller than the electrical box through hole.
Further, the cover is made of a metal material, and copper having a thermal conductivity of 398W/(mK) or aluminum having a thermal conductivity of 236W/(mK) is more preferable.
Further, the cover plate is a quadrilateral cover plate, cover plate screw through holes are respectively formed in the periphery of the quadrilateral cover plate, the cover plate sealing groove is a quadrilateral sealing groove, and cover plate threaded holes are respectively formed in the periphery of the quadrilateral sealing groove; the quadrangular cover plate is fixed on the quadrangular sealing groove through cover plate screws; the cover plate screws penetrate through the cover plate screw through holes and are fixed in the cover plate screw holes.
Further, the other side surface of the electrical box body is provided with a connector opening; connector screw through holes are respectively formed in the periphery of the connector opening; the electrical box body is made of metal materials.
Further, the through hole of the electrical box is arranged on the rear side surface of the electrical box body, and the connector opening is arranged on the front side surface of the electrical box body; the connector opening is smaller than the through hole of the electrical box.
Correspondingly, the application also provides a controller, which comprises an electrical box; the electrical box is the electrical box; the controller comprises a PCB board; a cavity is arranged in the electrical box body; the inner side surface of the cover plate is provided with a PCB clamping groove; the PCB board sets up in the cavity to the one end joint of PCB board is on the PCB draw-in groove.
Further, the controller also includes a PCB connector; the other side surface of the electrical box body is provided with a connector opening; the PCB connector is arranged in the cavity and protrudes out of the connector opening; the other end of the PCB board is connected to the PCB connector.
Further, connector screw through holes are respectively formed in the periphery of the connector opening, and PCB connector threaded holes are respectively formed in the periphery of the PCB connector; the PCB connector is arranged on the front side surface of the electrical box body through a connector screw; the connector screw passes through the connector screw through hole and is fixed in the PCB connector threaded hole.
Further, the PCB connector is mounted inside the connector opening of the cavity of the electrical box; the PCB connector is provided with a mounting frame around, and the through holes of the connector screws are arranged around the mounting frame; a PCB connector sealing ring is arranged between the mounting frame and the inner wall of the front side surface of the electrical box body; one side of the PCB connector protruding out of the connector opening is provided with a wiring terminal.
Further, the controller is used on an ECAS pneumatic system of the automobile, and the cover plate and the ECAS pneumatic system exhaust high-pressure air form convection.
Correspondingly, the application also provides an ECAS pneumatic system, which comprises a controller, wherein the controller is the controller; the controller is arranged at a pneumatic pipeline of the ECAS pneumatic system, and the cover plate faces the exhaust port of the pneumatic pipeline and forms convection with high-pressure air of the pneumatic pipeline.
The technical scheme provided by the application can give consideration to sealing and heat dissipation performance, not only ensures the sealing performance of the electrical box, but also can realize good heat dissipation effect, so that the controller has higher protection level, improves the service performance and delays the service life of the controller; meanwhile, the stress distribution of the installation of the electrical box is reasonable, the connection mode is more reasonable, and the problem of stress concentration of the screws is solved.
Drawings
The application will be described in further detail with reference to the drawings and the detailed description.
The application will be further described with reference to the accompanying drawings in which:
FIG. 1 is an exploded view of an electrical box of the present application;
FIG. 2 is an exploded view of a controller according to the present application;
FIG. 3 is a schematic diagram of an ECAS pneumatic system according to the present application.
In the figure: 1. a cover plate; 10. cover plate screws; 11. a cover plate screw through hole; 12. a PCB clamping groove; 13. a cover plate sealing ring; 2. an electrical box body; 21. a cover plate threaded hole; 22. a through hole of the electrical box; 23. a cover plate sealing groove; 24. a connector screw through hole; 25. a connector screw; 26. a connector opening; 3. a PCB board; 31. a PCB connector threaded hole; 32. a PCB connector; 33. a PCB connector seal ring; 41. a controller; 42. a condenser; 43. a dryer; 44. a four-circuit valve; 45. an overflow valve; 46. a gas storage tank; 47. a front axle electromagnetic valve; 48. a rear axle solenoid valve; 49. An air spring.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
As shown in fig. 1 to 2, the present application provides an electrical box, which can be applied to a controller of an ECAS pneumatic system of a whole automobile, so as to realize sealing and heat dissipation of the controller; specifically, the electrical box comprises a cover plate 1 and an electrical box body 2; wherein, an electrical box through hole 22 is arranged on one side surface of the electrical box body 2, and a cover plate sealing groove 23 is arranged on the periphery of the electrical box through hole 22; the cover plate 1 is arranged in the cover plate sealing groove 23 and seals the electric box through hole 22; a cover plate sealing ring 13 is arranged in the cover plate sealing groove 23, and the cover plate sealing ring 13 is clamped between the cover plate 1 and the bottom surface of the cover plate sealing groove 23; the cover plate 1 is made of a metal material, and the metal material is preferably copper or aluminum, so that the convection heat dissipation of the interior of the electric box outside can be effectively realized; by adopting the scheme, when the electric box can strengthen sealing, the heat dissipation effect is improved, the protection level is improved, and the electric box can be applied to severe and complex working environments.
Preferably, in combination with the above-mentioned scheme, as shown in fig. 1 to 2, in order to achieve better heat convection, in the scheme of the present application, the metal material of the cover plate 1 is copper with a heat conductivity coefficient of 398W/(m·k) or aluminum with a heat conductivity coefficient of 236W/(m·k), and specifically may be pure copper with a heat conductivity coefficient of 398W/(m·k) or pure aluminum with a heat conductivity coefficient of 236W/(m·k). Further, the cover sealing ring 13 is a plastic sealing ring.
Preferably, in combination with the above scheme, as shown in fig. 1 to 2, the cover plate 1 is a quadrilateral cover plate, the periphery of the quadrilateral cover plate is respectively provided with a cover plate screw through hole 11, the cover plate sealing groove 23 is a quadrilateral sealing groove, and the periphery of the quadrilateral sealing groove is respectively provided with a cover plate threaded hole 21; the quadrangular cover plate is fixed on the quadrangular sealing groove through cover plate screws 10; the cover plate screws 10 penetrate through the cover plate screw through holes 11 and are fixed in the cover plate screw holes 21, by adopting the scheme, the connecting stress of the cover plate can be distributed around one side face of the electric box body 2, the stress distribution is reasonable, the electric box connecting mode is more reasonable, the problem of stress concentration of the screws is solved, and the damage to the electric box body 2 caused by stress concentration is avoided.
Preferably, in combination with the above, as shown in fig. 1 to 2, the other side surface of the electrical box body 2 is provided with a connector opening 26; through holes 24 for the connector screws are respectively formed around the connector opening 26, and by adopting the scheme, the connecting stress of the connector can be distributed around the other side face of the electrical box body 2, so that the electrical box body 2 is prevented from being damaged due to stress concentration; further, the electrical box body 2 is made of metal materials, so that the heat dissipation effect can be improved, and the installation strength can be improved.
Preferably, in combination with the above-mentioned scheme, as shown in fig. 1 to 2, the electrical box through hole 22 is arranged on the rear side surface of the electrical box body 2, and the opening size and the connection mode of the electrical box through hole 22 are matched with those of the cover plate 1; the connector opening 26 is arranged on the front side surface of the electrical box body 2; the connector opening 26 is smaller than the through hole 22 of the electrical box and is arranged relatively, so that the heat dissipation effect is improved, and the assembly is convenient.
Example 2
Correspondingly, in combination with the above scheme, as shown in fig. 1 to 3, the application also provides a controller which can be applied to a controller of an ECAS pneumatic system of an entire automobile, so as to realize effective heat dissipation; the controller comprises an electrical box; the electrical box is the electrical box; specifically, the controller includes a PCB board 3; a cavity is arranged in the electrical box body 2; the inner side surface of the cover plate 1 is provided with a PCB clamping groove 12; the PCB 3 is arranged in the cavity, and one end of the PCB 3 is clamped on the PCB clamping groove 12, so that fixation is realized; by adopting the scheme, the installation of the PCB 3 can be realized, and meanwhile, the cover plate 1 can play a role in sealing and heat dissipation.
Preferably, in combination with the above, as shown in fig. 1 to 2, the present application further provides a controller further comprising a PCB connector 32; the other side surface of the electrical box body 2 is provided with a connector opening 26; the PCB connector 32 is disposed in the cavity and protrudes out of the connector opening 26; the other end of the PCB 3 is connected to the PCB connector 32; specifically, the PCB connector 32 is penetrated through the connector opening 26, is sealed with a sealing material at the connection site, is fixedly connected by means of a connecting member, is sealed with a sealing material at the connection site of the cover plate 1 and the electrical box 2, is fixedly connected by means of a connecting member, such as a plastic sealing ring, and the like, and is connected by means of a connecting member, such as a screw, and the like.
Preferably, in combination with the above scheme, as shown in fig. 1 to 2, the periphery of the connector opening 26 is respectively provided with the connector screw through holes 24, the periphery of the PCB connector 32 is respectively provided with the PCB connector threaded holes 31, so that stress can be distributed around, the stress distribution is reasonable, the connection mode of the electrical box is more reasonable, and the problem of stress concentration of the screws is solved; the PCB connector 32 is provided on the front side of the electrical box body 2 by the connector screw 25; the connector screw 25 passes through the connector screw through hole 24 and is fixed in the PCB connector screw hole 31.
Preferably, in combination with the above, as shown in fig. 1 to 2, the PCB connector 32 is mounted inside the connector opening 26 of the cavity of the electrical box 1; the periphery of the PCB connector 32 is provided with a mounting frame, and the connector screw through holes 24 are arranged on the periphery of the mounting frame; a PCB connector sealing ring 33 is arranged between the mounting frame and the inner wall of the front side surface of the electrical box body 2, and further, the PCB connector sealing ring 33 is a plastic sealing ring; the PCB connector 32 is provided with a terminal protruding from one side of the connector opening 26 so that electrical connection can be achieved.
Preferably, in combination with the above-mentioned scheme, as shown in fig. 1 to 2, the present application further provides a controller that can be used on an ECAS pneumatic system of an automobile, and makes the cover plate 1 and the ECAS pneumatic system exhaust high-pressure air form convection, so that the heat dissipation effect is improved while the sealing protection level is improved.
Example 3
Correspondingly, in combination with the above scheme, as shown in fig. 3, the application also provides an ECAS pneumatic system, which comprises a controller, wherein the controller is the controller; the installation position of the controller 41 is generally determined by the host factory, such as the controller area of the chassis below the driving position, the controller area of the luggage rack, etc.; the ECAS (Electronic Controlled Air Suspension, electrically controlled air suspension) pneumatic system is a typical pneumatic system, air in the atmospheric environment is compressed by an air compressor to be changed into high-temperature high-pressure air which enters the whole vehicle pneumatic system, and then the high-temperature high-pressure air enters an ECAS air storage tank 46 through an overflow valve 45 to be stored after being split by a four-loop valve 44 through cooling of a condenser 42 and dehumidification of a dryer 43; when the vehicle body height needs to be raised, the air inlet ends of the front axle electromagnetic valve 47 and the rear axle electromagnetic valve 48 are opened, high-pressure air is filled into the air spring 49, and the air spring 49 expands and rises, so that the vehicle body rises; when the height of the vehicle body needs to be reduced, the exhaust ends of the front axle electromagnetic valve 47 and the rear axle electromagnetic valve 48 are opened, and the gas in the air spring 49 is discharged into the atmosphere; specifically, in the embodiment of the application, the controller is arranged at a pneumatic pipeline of the ECAS pneumatic system, the cover plate 1 of the electric box of the controller faces the exhaust port of the pneumatic pipeline and forms convection with high-pressure air of the pneumatic pipeline, so that the heat dissipation effect is improved, and the electrical safety of the controller 1 is ensured.
The technical scheme provided by the application can give consideration to sealing and heat dissipation performance, not only ensures the sealing performance of the electrical box, but also can realize good heat dissipation effect, so that the controller has higher protection level, improves the service performance and delays the service life of the controller; meanwhile, the stress distribution of the installation of the electrical box is reasonable, the connection mode is more reasonable, and the problem of stress concentration of the screws is solved.
The above description is only a preferred embodiment of the present application, and is not intended to limit the present application in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present application fall within the protection scope of the present application.
Claims (7)
1. An ECAS pneumatic system comprising a controller, characterized in that,
the controller is arranged at a pneumatic pipeline of the ECAS pneumatic system, and the cover plate (1) faces to an exhaust port of the pneumatic pipeline so as to form forced convection heat exchange with high-pressure air exhausted by the exhaust port;
the controller comprises an electrical box, a PCB (3) and a PCB connector (32);
the electric appliance box comprises an electric appliance box body (2) and a cover plate (1), wherein an electric appliance box through hole (22) is formed in one side surface of the electric appliance box body, a connector opening (26) is formed in the other side surface opposite to the side surface, a cavity is formed in the electric appliance box body (2), and the PCB (3) is arranged in the cavity; the electrical box through hole (22) and the connector opening (26) are communicated with the cavity;
the cover plate is in sealing fit with the electric box through hole (22) and has heat conductivity;
a PCB clamping groove (12) is formed in the inner side surface of the cover plate (1); one end of the PCB (3) is clamped on the PCB clamping groove (12), and the other end of the PCB is connected to the PCB connector (32);
one end of the PCB connector (32) extends into the cavity to be connected with the PCB (3), and the other end of the PCB connector protrudes out of the connector opening (26) and is fixed on the front side surface of the electrical box body (2) through a connector screw (25);
and a connecting terminal is arranged on one side of the PCB connector (32) protruding out of the connector opening (26).
2. ECAS pneumatic system according to claim 1, wherein;
a cover plate sealing groove (23) is arranged at the periphery of the electric appliance box through hole (22); the cover plate (1) is arranged in the cover plate sealing groove (23) to seal the electric box through hole (22); the cover plate sealing groove (23) is internally provided with a cover plate sealing ring (13), and the cover plate sealing ring (13) is clamped between the cover plate (1) and the cover plate sealing groove (23).
3. ECAS pneumatic system according to claim 1, wherein;
the electrical box through hole (22) is arranged on the rear side surface of the electrical box body (2), and the connector opening (26) is arranged on the front side surface of the electrical box body (2); the connector opening (26) is smaller than the electrical box through opening (22).
4. The ECAS pneumatic system of claim 1, wherein,
the cover plate (1) is a quadrilateral cover plate, cover plate screw through holes (11) are respectively formed in the periphery of the quadrilateral cover plate, the cover plate sealing groove (23) is a quadrilateral sealing groove, and cover plate threaded holes (21) are respectively formed in the periphery of the quadrilateral sealing groove; the quadrangular cover plate is fixed on the quadrangular sealing groove through cover plate screws (10); the cover plate screw (10) penetrates through the cover plate screw through hole (11) and is fixed in the cover plate threaded hole (21).
5. The ECAS pneumatic system of claim 1, wherein,
the cover plate (1) is made of a metal material.
6. The ECAS pneumatic system of claim 1, wherein,
connector screw through holes (24) are respectively formed in the periphery of the connector opening (26), and PCB connector threaded holes (31) are respectively formed in the periphery of the PCB connector (32); the connector screw (25) passes through the connector screw through hole (24) and is fixed in the PCB connector screw hole (31).
7. The ECAS pneumatic system of claim 6, wherein,
the periphery of the PCB connector (32) is provided with a mounting frame, and the connector screw through holes (24) are formed in the periphery of the mounting frame; and a PCB connector sealing ring (33) is arranged between the mounting frame and the inner wall of the front side surface of the electrical box body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569068.3A CN112601408B (en) | 2020-12-25 | 2020-12-25 | Electrical apparatus box, controller and ECAS pneumatic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569068.3A CN112601408B (en) | 2020-12-25 | 2020-12-25 | Electrical apparatus box, controller and ECAS pneumatic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112601408A CN112601408A (en) | 2021-04-02 |
| CN112601408B true CN112601408B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011569068.3A Active CN112601408B (en) | 2020-12-25 | 2020-12-25 | Electrical apparatus box, controller and ECAS pneumatic system |
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| CN (1) | CN112601408B (en) |
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| CN117528989B (en) * | 2024-01-04 | 2024-03-29 | 成都宏明电子股份有限公司 | Double-cover shielding type electronic device convenient to assemble |
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| CN112601408A (en) | 2021-04-02 |
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