Sealing ring assemblies for vehicles, vehicles, and methods for testing sealing performance.

Abstract

This invention relates to a sealing ring assembly for a vehicle, a vehicle, and a method for testing sealing performance. The vehicle includes a housing and a parking air conditioner fixed to the housing. The sealing ring assembly includes: a sealing ring body adapted to be fixed between the chassis of the parking air conditioner and the housing, the sealing ring body configured to form a sealed hollow cavity together with the chassis and the housing; and an inflation nozzle adapted to be connected to an external inflation device, the inflation nozzle configured to form gas communication with the hollow cavity to inject gas at a predetermined pressure into the hollow cavity. The sealing ring assembly of this invention for a vehicle enables testing of the sealing performance between the sealing ring body and the roof, and between the sealing ring body and the chassis.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning, in particular to a sealing ring assembly for a vehicle, a vehicle and a detection method of sealing performance. BACKGROUND

[0002] In recent years, with the continuous rise of self-driving travel, motor homes are favored by more and more users. A motor home (i.e. Recreational Vehicle) is a kind of movable vehicle with basic facilities (such as bedding, stove, washing facilities, air conditioner, television, etc.) necessary for home. The motor home can be parked at will in areas far from the city, such as beaches, lake shores, grasslands, slopes, forests, etc., while allowing users to conveniently have the lifestyle of the city.

[0003] The stationary air conditioner can conveniently deliver cold air or hot air into the vehicle cabin, thereby adjusting the temperature and humidity in the vehicle cabin, providing a comfortable vehicle cabin environment for the driver and passenger, reducing travel fatigue, and ensuring driving safety. According to the different arrangement positions, the stationary air conditioner of the prior art can be roughly divided into top-mounted air conditioner, bottom-mounted air conditioner and rear-mounted air conditioner, etc. As the name implies, the top-mounted air conditioner is arranged on the roof of the motor home; similar to ordinary passenger cars, the bottom-mounted air conditioner is arranged on the chassis of the motor home; the rear-mounted air conditioner is arranged at the rear door position of the motor home.

[0004] In order to prevent air and rain leakage, the stationary air conditioner of the prior art usually sets a sealing ring between the chassis of the stationary air conditioner and the shell of the motor home. The sealing ring is fixed together with the chassis of the stationary air conditioner and the shell of the motor home by double-sided adhesive. However, after the sealing ring is fixed, there is no effective means to detect its sealing performance. Once the sealing ring is installed poorly, the airflow, noise, rain, impurities, etc. of the external environment can easily enter the vehicle cabin. Correspondingly, the cold air or hot air generated by the motor home air conditioner will also flow out from the installation gap, thereby reducing the refrigeration effect or heating effect, greatly affecting the user's experience.

[0005] Therefore, there is a need in the art for a new technical solution to solve the above problems. SUMMARY

[0006] To solve the technical problem that it is difficult to detect the sealing performance of a sealing ring for a vehicle after installation in the prior art, the present application provides a sealing ring assembly for a vehicle. The vehicle comprises a housing and a stationary air conditioner fixed on the housing, and the sealing ring assembly comprises: a sealing ring body adapted to be fixed between a chassis of the stationary air conditioner and the housing, the sealing ring body being configured to enclose a sealed hollow cavity together with the chassis and the housing; and an inflation nozzle adapted to be connected to an external inflation device, the inflation nozzle being configured to form gas communication with the hollow cavity so as to inflate the hollow cavity with gas at a predetermined pressure.

[0007] The sealing ring assembly for a vehicle of the present application comprises a sealing ring body and an inflation nozzle. The vehicle comprises a housing and a stationary air conditioner fixed on the housing, and the sealing ring body is adapted to be fixed between a chassis of the stationary air conditioner and the housing of the vehicle, so as to prevent rain, air and other substances from entering the vehicle through the installation gap between the chassis and the housing, and to prevent the cold air or hot air generated by the stationary air conditioner from flowing out from the installation gap, thereby ensuring the refrigeration efficiency or heating efficiency of the stationary air conditioner and improving the user experience. The sealing ring body is configured to enclose a sealed hollow cavity together with the chassis and the housing. The inflation nozzle is adapted to be connected to an external inflation device, and the inflation nozzle is configured to form gas communication with the hollow cavity so as to inflate the hollow cavity with gas at a predetermined pressure. By inflating the hollow cavity with gas at a predetermined pressure, the sealing effect between the sealing ring body and the chassis and between the sealing ring body and the housing can be conveniently detected, thereby preventing problems such as air leakage, rain leakage, noise increase and heat loss during use, reducing maintenance costs and improving user experience.

[0008] In the preferred technical solution of the sealing ring assembly for a vehicle described above, the sealing ring body comprises an inner circumferential wall and an outer circumferential wall extending along the same central axis, and a connecting wall located between the inner circumferential wall and the outer circumferential wall, the connecting wall dividing the cavity into an upper cavity and a lower cavity spaced apart from each other, and the upper end surface of the inner circumferential wall and the upper end surface of the outer circumferential wall are adapted to abut against the chassis, and the lower end surface of the inner circumferential wall and the lower end surface of the outer circumferential wall are adapted to abut against the housing. Through the above arrangement, the sealing ring body has a simple structure and is easy to process. In addition, the upper and lower end surfaces of the inner circumferential wall and the outer circumferential wall abut against the chassis and the roof, respectively, which can increase the contact area of the sealing ring body with the chassis and the roof and ensure the sealing effect.

[0009] In the sealing ring assembly for a vehicle, a plurality of through holes are arranged on the connecting wall to form gas communication between the upper cavity and the lower cavity. The plurality of through holes can form gas communication between the upper cavity and the lower cavity, so that the upper cavity and the lower cavity can be inflated simultaneously by one inflation nozzle, thereby improving the detection efficiency.

[0010] In the sealing ring assembly for a vehicle, the inflation nozzle is adapted to be fixed on the chassis and / or the housing. The arrangement of the inflation nozzle can meet the inflation requirements of different sealing ring body structures.

[0011] In the sealing ring assembly for a vehicle, the sealing ring assembly further comprises a pressure sensor adapted to be fixed on the chassis and / or the housing, and the pressure sensor is configured to communicate with the hollow cavity to detect the air pressure in the hollow cavity. The pressure sensor can conveniently detect the air pressure in the hollow cavity, thereby judging the sealing performance between the sealing ring body and the chassis and the housing.

[0012] To solve the technical problem that it is difficult to detect the sealing performance after the sealing ring is installed in the prior art, the present application provides a vehicle. The vehicle comprises a housing, a parking air conditioner fixed on the housing, and a sealing ring assembly for a vehicle according to any one of the above, which is fixed between the housing and the chassis of the parking air conditioner. By using the sealing ring assembly for a vehicle described above, the vehicle of the present application can conveniently detect the sealing performance between the sealing ring body and the chassis of the parking air conditioner and the housing of the vehicle.

[0013] In the vehicle, a first mounting hole is formed on the chassis and / or the housing, the inflation nozzle of the sealing ring assembly passes through the first mounting hole and extends into a hollow cavity formed by the sealing ring body of the sealing ring assembly, the housing and the chassis, so as to inflate the hollow cavity. By the above arrangement, the inflation nozzle can be conveniently mounted.

[0014] In the vehicle, an external thread is formed on the outer circumferential wall of the inflation nozzle, an upper nut and a lower nut are sleeved on the inflation nozzle, the upper nut and the lower nut are arranged on the upper side and the lower side of the chassis respectively, and / or the upper nut and the lower nut are arranged on the upper side and the lower side of the housing respectively. By the above arrangement, the inflation nozzle can be stably and firmly fixed on the chassis and / or the housing.

[0015] In the preferred technical solution of the vehicle, a sealing gasket is further sleeved on the inflation nozzle, and the sealing gasket is respectively positioned between the upper nut and the chassis and between the lower nut and the chassis, and / or the sealing gasket is respectively positioned between the upper thread and the shell and between the lower nut and the shell. The sealing gasket is arranged to ensure the sealing between the inflation nozzle and the chassis and / or between the inflation nozzle and the shell, thereby ensuring the accuracy of the test results.

[0016] In the preferred technical solution of the vehicle, a second mounting hole is formed on the chassis and / or the shell and is spaced apart from the first mounting hole, and the sealing ring assembly comprises a pressure sensor fixed on the chassis and / or the shell and extending into the hollow cavity from the second mounting hole to detect the air pressure in the hollow cavity. Through the above arrangement, the pressure sensor can be conveniently fixed on the chassis and / or the shell to detect the air pressure in the hollow cavity.

[0017] In order to solve the technical problem that it is difficult to detect the sealing performance of the sealing ring after installation in the prior art, the present application provides a detection method for sealing performance, which is performed in the vehicle of any one of the above and comprises: inflating a predetermined pressure of gas into a hollow cavity surrounded by the sealing ring body, the shell and the chassis together; detecting the air pressure in the hollow cavity after a predetermined period of time; comparing the detected air pressure with the predetermined pressure; and determining the sealing performance between the sealing ring body and the shell and the chassis based on the comparison result. Through the above detection method for sealing performance, the sealing performance between the sealing ring body and the chassis and the shell can be conveniently and accurately detected.

[0018] Scheme 1. A sealing ring assembly for a vehicle, wherein the vehicle comprises a shell and a stationary air conditioner fixed on the shell, and the sealing ring assembly comprises: a sealing ring body adapted to be fixed between a chassis of the stationary air conditioner and the shell, the sealing ring body being configured to surround a sealed hollow cavity together with the chassis and the shell; and an inflation nozzle adapted to be connected with an external inflation device, the inflation nozzle being configured to form gas communication with the hollow cavity to inflate a predetermined pressure of gas into the hollow cavity.

[0019] Scheme 2. The sealing ring assembly for a vehicle according to scheme 1, characterized in that the sealing ring body comprises an inner circumferential wall and an outer circumferential wall extending along the same central axis, and a connecting wall between the inner circumferential wall and the outer circumferential wall, the connecting wall divides the cavity into an upper cavity and a lower cavity spaced apart in an up-down direction, and the upper end face of the inner circumferential wall and the upper end face of the outer circumferential wall are both adapted to abut against the chassis, and the lower end face of the inner circumferential wall and the lower end face of the outer circumferential wall are both adapted to abut against the housing.

[0020] Scheme 3. The sealing ring assembly for a vehicle according to scheme 2, characterized in that a plurality of through holes are provided on the connecting wall and spaced apart from each other in a circumferential direction, so as to form the upper cavity and the lower cavity in gas communication.

[0021] Scheme 4. The sealing ring assembly for a vehicle according to any one of schemes 1-3, characterized in that the inflation nozzle is adapted to be fixed on the chassis and / or the housing.

[0022] Scheme 5. The sealing ring assembly for a vehicle according to scheme 1, characterized in that the sealing ring assembly further comprises a pressure sensor adapted to be fixed on the chassis and / or the housing, and the pressure sensor is configured to be in communication with the hollow cavity to detect the air pressure of the hollow cavity.

[0023] Scheme 6. A vehicle, characterized in that the vehicle comprises a housing, a parking air conditioner fixed on the housing, and a sealing ring assembly for a vehicle according to any one of schemes 1-5, the sealing ring assembly being fixed between the housing and a chassis of the parking air conditioner.

[0024] Scheme 7. The vehicle according to scheme 6, characterized in that a first mounting hole is formed on the chassis and / or the housing, the inflation nozzle of the sealing ring assembly passes through the first mounting hole and extends into a hollow cavity enclosed by the sealing ring body of the sealing ring assembly, the housing and the chassis together, so as to inflate the hollow cavity.

[0025] Scheme 8. The vehicle according to scheme 7, characterized in that an outer thread is formed on an outer circumferential wall of the inflation nozzle, an upper nut and a lower nut are sleeved on the inflation nozzle and both match the outer thread, and the upper nut and the lower nut are arranged on the upper side and the lower side of the chassis respectively, and / or the upper nut and the lower nut are arranged on the upper side and the lower side of the housing respectively.

[0026] Scheme 9. The vehicle according to Scheme 8, characterized in that a sealing gasket is further sleeved on the inflation nozzle, and the sealing gasket is respectively positioned between the upper nut and the chassis and between the lower nut and the chassis, and / or the sealing gasket is respectively positioned between the upper thread and the housing and between the lower nut and the housing.

[0027] Scheme 10. The vehicle according to any one of Schemes 7-9, characterized in that a second mounting hole spaced apart from the first mounting hole is formed on the chassis and / or the housing, and the sealing ring assembly comprises a pressure sensor fixed on the chassis and / or the housing and extending into the hollow cavity from the second mounting hole so as to detect the air pressure of the hollow cavity.

[0028] Scheme 11. A detection method of sealing performance, characterized in that the detection method is performed in the vehicle according to any one of Schemes 6-10, and the detection method comprises: inflating a predetermined pressure of gas into a hollow cavity enclosed by a sealing ring body, a housing and a chassis together; detecting the air pressure in the hollow cavity after a preset period of time; comparing the detected air pressure with the predetermined pressure; and determining the sealing performance between the sealing ring body and the housing and the chassis based on the comparison result. BRIEF DESCRIPTION OF DRAWINGS

[0029] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings, in which:

[0030] Figure 1 is a structural schematic view of an embodiment of the chassis, the sealing ring assembly of the stationary air conditioner of the vehicle of the present application, and the housing of the vehicle;

[0031] Figure 2 is a structural schematic view of an embodiment of the chassis, the sealing ring assembly of the stationary air conditioner of the vehicle of the present application, and the housing of the vehicle;

[0032] Figure 3 is Figure 2 is a partial enlarged view of part A of the embodiment of the chassis, the sealing ring assembly of the stationary air conditioner of the vehicle of the present application, and the housing of the vehicle shown in

[0033] Figure 4 is Figure 2 is a partial enlarged view of part B of the embodiment of the chassis, the sealing ring assembly of the stationary air conditioner of the vehicle of the present application, and the housing of the vehicle shown in

[0034] Figure 5 is a structural schematic view of an embodiment of the sealing ring body of the sealing assembly for the vehicle of the present application;

[0035] Figure 6 is a flow schematic view of the detection method of sealing performance of the present application;

[0036] Figure 7 is a flowchart of an embodiment of the detection method of the sealing performance of the present application.

[0037] List of reference signs:

[0038] 1, vehicle; 10, housing; 11, vent hole; 20, stationary air conditioner; 21, cover; 22, chassis; 221, air inlet; 222, air return; 223, fixing hole; 224, first mounting hole; 225, second mounting hole; 23, inner cavity; 30, sealing ring assembly; 31, sealing ring body; 311, inner circumferential wall; 3111a, upper end surface of inner circumferential wall; 3111b, lower end surface of inner circumferential wall; 312, outer circumferential wall; 3121a, upper end surface of outer circumferential wall; 3121b, lower end surface of outer circumferential wall; 313, connecting wall; 3131, through hole; 32, hollow cavity; 321, upper cavity; 322, lower cavity; 33, inflation nozzle; 331, cylindrical section; 332, conical section; 333, upper nut; 334, lower nut; 335, gasket; 34, pressure sensor. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0040] It should be noted that in the description of the present application, the terms indicating the direction or positional relationship of "upper", "lower", "left", "right", "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0041] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] To solve the technical problem that the sealing performance of a sealing ring for a vehicle is difficult to detect after installation in the prior art, the present application provides a sealing ring assembly 30 for a vehicle 1. The vehicle 1 comprises a housing 10 and a stationary air conditioner 20 fixed on the housing 10, and the sealing ring assembly 30 comprises: a sealing ring body 31 adapted to be fixed between a chassis 22 of the stationary air conditioner 20 and the housing 10, the sealing ring body 31 being configured to enclose a sealed hollow cavity 32 together with the chassis 22 and the housing 10; and an air injection nozzle 33 adapted to be connected to an external air injection device, and the air injection nozzle 33 being configured to form gas communication with the hollow cavity 32 so as to fill the hollow cavity 32 with gas at a predetermined pressure.

[0043] Figure 1 is a structural schematic view of an embodiment of the stationary air conditioner of the vehicle of the present application; Figure 2 is a structural schematic view of an embodiment of the chassis, the sealing ring assembly, and the housing of the vehicle of the stationary air conditioner of the vehicle of the present application; Figure 3 is Figure 2 is a partial enlarged view of part A of the embodiment of the chassis, the sealing ring assembly, and the housing of the vehicle of the stationary air conditioner of the vehicle of the present application shown in Figure 4 is Figure 2 is a partial enlarged view of part B of the embodiment of the chassis, the sealing ring assembly, and the housing of the vehicle of the stationary air conditioner of the vehicle of the present application shown in Figure 5 is a structural schematic view of an embodiment of the sealing ring body of the sealing assembly for the vehicle of the present application.

[0044] To solve the technical problem that the sealing performance of a sealing ring for a vehicle is difficult to detect after installation in the prior art, the present application provides a vehicle 1. In one or more embodiments, the vehicle 1 can be a recreational vehicle, a passenger vehicle, a van, or other suitable vehicle. As shown in Figure 1 The vehicle 1 comprises a housing 10 and a stationary air conditioner 20 arranged on the housing 10. The housing 10 is the outer shell of the vehicle 1, including but not limited to the roof, the floor, the back panel, and the like. A through ventilation hole 11 is provided on the housing 10. The cold air or hot air generated by the stationary air conditioner 20 enters the vehicle cabin through the ventilation hole 11, thereby adjusting the temperature and humidity in the vehicle cabin. The shape of the ventilation hole 11 can be rectangular, square, circular, or other suitable shape.

[0045] As shown in Figure 1As shown, in one or more embodiments, the stationary air conditioner 20 comprises a cover 21 and a chassis 22 which are matched with each other. The cover 21 and the chassis 22 can be respectively injection molded by using suitable resin materials (e.g. ABS, PP, etc.) and then fixed together. The fixing manner includes but is not limited to screwing, clamping, etc. The cover 21 and the chassis 22 together enclose an inner cavity 23 which can accommodate other functional components. The functional components include but are not limited to a compressor, a condenser, an evaporator, an expansion device, a fan (not shown in the figure), etc. Among them, the compressor, the condenser, the expansion device and the evaporator are connected in sequence through refrigerant pipelines to form a refrigeration circuit allowing a refrigerant medium (e.g. R34a, etc.) to circulate and flow therein. In one or more embodiments, the functional components further include a four-way valve for adjusting the flow direction of the refrigerant, so that the stationary air conditioner 20 has both heating and cooling functions.

[0046] Continuing to refer to Figure 1 In one or more embodiments, the chassis 22 is formed with an air inlet 221 and an air outlet 222 which are spaced apart from each other. In the assembled state, the air inlet 221 and the air outlet 222 are opposite to the ventilation hole 11 on the shell 10. That is, the air inlet 221 and the air outlet 222 are located in the vertical projection of the ventilation hole 11. Taking the cooling working condition as an example, when the fan of the stationary air conditioner 20 rotates, the air inside the vehicle 1 is sucked into the inner cavity 23 through the air outlet 222 under the action of negative pressure. Then, the air passes through the condenser to be cooled and forms cold air. Then, the cold air enters the interior of the vehicle 1 again from the air inlet 221, thereby reducing the temperature inside the vehicle cabin.

[0047] Continuing to refer to Figure 1 In one or more embodiments, the chassis 22 is further formed with four fixing holes 223 which are spaced apart from each other. Based on Figure 1 In the shown orientation, the four fixing holes 223 are respectively located above and below the left side of the air inlet 221, and above and below the right side of the air outlet 222. Each fixing hole 223 can be matched with a suitable fastener (e.g. bolt, nut, screw, etc.) to fix the stationary air conditioner 20 on the shell 10. It should be pointed out that the number and arrangement position of the fixing holes 223 can also be adjusted according to actual needs.

[0048] As shown in Figure 1 and Figure 2 When the stationary air conditioner 20 is installed on the shell 10 of the vehicle 1, the chassis 22 of the stationary air conditioner 20 abuts against the shell 10. In order to improve the sealing performance between the chassis 22 and the shell 10 and quickly and effectively detect the sealing performance, the sealing ring assembly 30 for the vehicle 1 of the present application is arranged between the chassis 22 and the shell 10.

[0049] As shown in Figures 1-5As shown, in one or more embodiments, the sealing ring assembly 30 of the present invention includes a sealing ring body 31 and an inflation nozzle 33. The sealing ring body 31 is installed between the chassis 22 of the parking air conditioner 20 and the housing 10 of the vehicle 1, and the sealing ring body 31, the chassis 22, and the housing 10 together form a sealed hollow cavity 32. The inflation nozzle 33 is connected to an external inflation device (not shown) and forms gas communication with the hollow cavity 32, so that the sealing performance between the sealing ring body 31 and the chassis 22 and the housing 10 can be tested by filling the hollow cavity 32 with gas at a predetermined pressure. The external inflation device includes, but is not limited to, suitable components such as an air compressor, an air tank, and a filter.

[0050] like Figure 5 As shown, in one or more embodiments, the sealing ring body 31 is a generally square annular structure. Alternatively, the sealing ring body 31 can also be other suitable shapes, such as rectangular, circular, elliptical, etc. The sealing ring body 31 can be made of a suitable flexible material, such as rubber, silicone, etc., to give it good deformation capability. In one or more embodiments, the sealing ring body 31 includes an inner circumferential wall 311 and an outer circumferential wall 312 opposite to each other, and a connecting wall 313 located between the inner circumferential wall 311 and the outer circumferential wall 312. Based on Figure 3 and Figure 4 The inner circumferential wall 311 and the outer circumferential wall 312 both extend approximately vertically. Furthermore, the inner circumferential wall 311 and the outer circumferential wall 312 extend along the same central axis. The inner circumferential wall 311 has an upper inner circumferential wall surface 3111a and a lower inner circumferential wall surface 3111b that are opposite to each other. In the assembled state, the upper inner circumferential wall surface 3111a abuts against the chassis 22 of the parking air conditioner 10, and the lower inner circumferential wall surface 3111b abuts against the housing 10 of the vehicle 1. Correspondingly, the outer circumferential wall 312 has an upper outer circumferential wall surface 3121a and a lower outer circumferential wall surface 3121b that are opposite to each other. In the assembled state, the upper outer circumferential wall surface 3121a abuts against the chassis 22 of the parking air conditioner 10, and the lower outer circumferential wall surface 3121b abuts against the housing 10 of the vehicle 1. The above-described arrangement increases the contact area between the sealing ring body 31 and the chassis 22 and the housing 10, ensuring a good seal. The sealing ring body 31 and the chassis 22 can be fixed together with the housing 10 using a suitable adhesive (not shown in the figure). The adhesive can be, but is not limited to, 3M glue, epoxy resin glue, or polyurethane glue.

[0051] See also Figures 2-5In one or more embodiments, the connecting wall 313 extends from the middle of the inner circumferential wall 311 to the middle of the outer circumferential wall 312, so that the cross section of the sealing ring body 31 has a substantially "H" shape. Alternatively, the connecting wall 313 extends from the upper end surface 3111a of the inner circumferential wall to the lower end surface 3121b of the outer circumferential wall, so that the cross section of the sealing ring body 31 has a substantially "N" shape. Alternatively, the connecting wall 313 can also extend from the upper end surface 3121a of the outer circumferential wall to the lower end surface 3111b of the inner circumferential wall, so that the cross section of the sealing ring body 31 has a substantially "И" shape. Alternatively, the connecting wall 313 can also extend from the upper end surface 3111a of the inner circumferential wall to the lower end surface 3121b of the outer circumferential wall, and from the upper end surface 3121a of the outer circumferential wall to the lower end surface 3111b of the inner circumferential wall. In the assembled state, the bottom plate 22, the sealing ring body 31 and the shell 10 together enclose a closed hollow cavity 32, and the connecting wall 313 divides the hollow cavity 32 into mutually spaced upper and lower cavities 321 and 322. Among them, the upper cavity 321 is close to the shell 20 side of the vehicle 1, and the lower cavity 322 is close to the shell 10 side of the parking air conditioner 20. In one or more embodiments, a plurality of through holes 3131 are formed on the connecting wall 313 and spaced apart from each other in the circumferential direction. It should be pointed out that the number, shape, size and arrangement position of the through holes 3131 can be adjusted according to actual needs. The provision of the through holes 3131 can form a gas communication between the upper and lower cavities 321 and 322, so as to utilize one inflation nozzle 33 to simultaneously inflate the upper and lower cavities 321 and 322, thereby improving the detection efficiency. Alternatively, the through holes 3131 can also not be provided on the connecting wall 313, at which time the upper and lower cavities 321 and 322 can be respectively provided with one matched inflation nozzle 33.

[0052] As shown in Figure 3 one or more embodiments, the inflation nozzle 33 is fixed on the bottom plate 22 of the parking air conditioner 20. Alternatively, the inflation nozzle 33 can also be fixed on the shell 10 of the vehicle 1. Alternatively, the inflation nozzle 33 can also be arranged on the bottom plate 22 and the shell 10 at the same time, as long as it can conveniently inflate the hollow cavity 32. The first mounting hole 224 is provided on the bottom plate 22, and the inflation nozzle 33 passes through the first mounting hole 224 and extends into the hollow cavity 32, so as to inflate the hollow cavity 32. In one or more embodiments, the inflation nozzle 33 comprises a cylindrical segment 331 and a conical segment 332 which are connected to each other. Based on the Figure 3 position shown, the cylindrical segment 331 is located at the upper part of the inflation nozzle 33, and has a substantially same cross section in the vertical direction. The conical segment 332 is located at the lower part of the inflation nozzle 33, and the cross section gradually decreases in the direction away from the cylindrical segment 331. In the assembled state, the cylindrical segment 331 passes through the first mounting hole 224 and is fixed on the bottom plate 22, and the conical segment 332 extends into the hollow cavity 32.

[0053] With continued reference to Figure 3 In one or more embodiments, an outer thread (not shown in the figures) is formed on the outer circumferential wall of the inflation nozzle 33. Specifically, the outer thread is formed on the outer circumferential wall of the cylindrical section 331. An upper nut 333 and a lower nut 334, both mating with the outer thread, are fitted on the cylindrical section 331. When the inflation nozzle 33 is mounted on the base plate 22, based on the orientation shown, the upper nut 333 is positioned above and the lower nut 334 is positioned below, and the upper nut 333 and the lower nut 334 are positioned on the upper side and the lower side of the base plate 22, respectively. That is, the base plate 22 is interposed between the upper nut 333 and the lower nut 334. Through the above arrangement, the upper nut 333 and the lower nut 334 can cooperate with each other to securely and stably fix the inflation nozzle 33 on the base plate 22. When the inflation nozzle 33 is mounted on the housing 10, the upper nut 333 and the lower nut 334 are positioned on the upper side and the lower side of the housing 10, respectively. Accordingly, when the inflation nozzle 33 is mounted on both the base plate 22 and the housing 10, the upper nut 333 and the lower nut 334 are positioned on the upper side and the lower side of the base plate 22, and the upper nut 333 and the lower nut 334 are also positioned on the upper side and the lower side of the housing 10. Figure 3 With continued reference to

[0054] In one or more embodiments, a sealing gasket 335 is also fitted on the inflation nozzle 33. Specifically, two sealing gaskets 335 are fitted on the cylindrical section 331, spaced apart from each other. When the inflation nozzle 33 is mounted on the base plate 22, one sealing gasket 335 is positioned between the upper nut 333 and the base plate 22 to seal the upper surface of the first mounting hole 224, and one sealing gasket 335 is positioned between the lower nut 334 and the base plate 22 to seal the lower surface of the first mounting hole 224. Through the above arrangement, the sealing effect at the first mounting hole 224 can be ensured, preventing the gas filled in the hollow cavity 32 from flowing out of the first mounting hole 224 to affect the detection effect. When the inflation nozzle 33 is mounted on the housing 10, the sealing gaskets 335 are positioned between the upper nut 333 and the housing 10 and between the lower nut 334 and the housing 10, respectively. Accordingly, when the inflation nozzle 33 is mounted on both the base plate 22 and the housing 10, the sealing gaskets 335 are positioned between the corresponding nuts (including the upper nut 333 and the lower nut 334) and the counterparts (including the base plate 22 and the housing 10), respectively. In one or more embodiments, a substantially U-shaped groove (not identified in the figures) is formed on the upper nut 333 and the lower nut 334 to receive the corresponding sealing gasket 335, to improve the sealing effect. Figure 3 As

[0055] Figure 4 ​As shown, in one or more embodiments, the sealing ring assembly 30 further comprises a pressure sensor 34 for detecting the air pressure in the hollow cavity 32. The pressure sensor 34 can be, but is not limited to, a strain pressure sensor, a piezoresistive pressure sensor, a capacitive pressure sensor, etc. In one or more embodiments, a second mounting hole 225 is provided on the chassis 22 and spaced from the first mounting hole 224, and the pressure sensor 34 extends into the hollow cavity 32 through the second mounting hole 225. Alternatively, a second mounting hole 225 is provided on the housing 10 to allow the pressure sensor 34 to extend into the hollow cavity 32 through the second mounting hole 225. Alternatively, the pressure sensor 34 can be mounted on both the chassis 22 and the housing 10. It is to be noted that the pressure sensor 34 can be fixed to the opponent (including the chassis 22 and / or the housing 10) in the same manner as the inflation nozzle 33, which will not be described here.

[0056] In one or more embodiments, the sealing ring assembly 30 of the present application further comprises a display module, a timing module, an alarm module (not shown in the figure) matched with the pressure sensor 34. The display module, the timing module, and the alarm module can be integrated into the control system (not shown in the figure) of the vehicle 1. The display module is used to display the air pressure data detected by the pressure sensor 34 and the determination result of the detection performance. The timing module is used to calculate the inflation time, the pressure decay time, etc. The alarm module is used to send a prompt alarm to the user when the sealing performance of the sealing ring body 31 is determined to be poor, so as to timely repair and replace the sealing ring body 31.

[0057] In the following, the sealing performance detection method of the present application will be described in combination with Figure 6 and Figure 7 The sealing performance detection method of the present application can be performed in the sealing ring assembly 30 or the vehicle 1 described in any of the above embodiments.

[0058] Figure 6 is a flowchart of the sealing performance detection method of the present application. As shown in Figure 6 one or more embodiments, when the sealing performance detection method of the present application starts, first, step S1 is performed, i.e. a gas with a predetermined pressure is filled into the hollow cavity 32. Then, after a predetermined period of time, the air pressure in the hollow cavity 32 is detected (step S2). Then, the measured air pressure is compared with the predetermined pressure (step S3). Based on the comparison result, the sealing performance between the sealing ring body 31 and the housing 10 and the chassis 22 is determined (step S4).

[0059] Figure 7 is a flowchart of an embodiment of the sealing performance detection method of the present application. As shown in Figure 7As shown, in one or more embodiments, when the method of detecting the sealing performance of the present application is started, first, step S10 is performed, i.e. the hollow cavity 32 is filled with gas. The hollow cavity 32 can be filled with gas by controlling the external gas filling device connected to the gas filling nozzle 33. The gas filled can be, but not limited to, compressed air, nitrogen, etc. Then, the gas pressure in the hollow cavity 32 is detected (step S20). The gas pressure in the hollow cavity 32 can be detected by the pressure sensor 34 connected to the hollow cavity 32. Then, it is determined whether the detected gas pressure is less than a predetermined pressure (step S30). In one or more embodiments, the predetermined pressure is 2 atm (i.e. standard atmospheric pressure). Alternatively, the predetermined pressure can also be set to other suitable pressure values greater or less than 2 atm. When the detected gas pressure is less than the predetermined pressure, step S40 is performed to determine whether the gas filling time is less than a predetermined gas filling time. In one or more embodiments, the predetermined gas filling time is 30 s (seconds). Alternatively, the predetermined gas filling time can also be set to other suitable time values longer or shorter than 30 s. When the determination result is yes, it means that the gas in the hollow cavity 32 has not been filled at this time, and then step S10 is repeatedly performed to continue filling the gas in the hollow cavity 32. When the determination result is no, it means that although the gas pressure in the hollow cavity 32 has not reached the predetermined pressure, the gas filling time has reached the predetermined gas filling time. In other words, within the sufficient gas filling time, the gas pressure in the hollow cavity 32 fails to reach the predetermined pressure smoothly, which indicates that the sealing between the sealing ring body 31 and the bottom plate 22, or between the sealing ring body 31 and the shell 10, or between the sealing ring body 31 and both the bottom plate 22 and the shell 10 is poor, and thus it is determined that the sealing performance is abnormal (step S50). In one or more embodiments, the determination result can be displayed to the user by the display module and the alarm module connected to the pressure sensor 34. When step S50 is completed, the detection method is ended.

[0060] With continued reference to Figure 7After step S30 is performed, when the determination result is no, it indicates that the air pressure in the hollow cavity 32 has reached the predetermined pressure, and then step S60 is performed. After a predetermined time period, the air pressure in the hollow cavity 32 is detected again. In one or more embodiments, the predetermined time period is 10 minutes. Alternatively, the predetermined time period can also be set to other suitable time period longer or shorter than 10 minutes. Then step S70 is performed to determine whether the detected air pressure is greater than or equal to 0.95 times the predetermined pressure. When the determination result is no, it indicates that the air pressure in the hollow cavity 32 has a large degree of attenuation within the predetermined time period, and the sealing between the sealing ring body 31 and the bottom plate 22, or between the sealing ring body 31 and the shell 10, or between the sealing ring body 31 and the bottom plate 22 and the shell 10 is not good. Therefore, the detection method proceeds to step S50 to determine that the sealing performance is abnormal. After step S50 is completed, the detection method ends. When the determination result is yes, it indicates that the air pressure in the hollow cavity 32 remains at a high level without a large degree of attenuation within the predetermined time period. Therefore, the detection method proceeds to step S80 to determine that the sealing performance is normal. After step S80 is completed, the detection method ends.

[0061] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will all fall within the protection scope of the present application.

Claims

1. A seal assembly for a vehicle, characterized by, The vehicle comprises a housing and a stationary air conditioner fixed on the housing, and the sealing ring assembly comprises: a sealing ring body adapted to be fixed between a chassis of the stationary air conditioner and the housing, the sealing ring body being configured to enclose a sealed hollow cavity together with the chassis and the housing; and an inflation nozzle adapted to be connected with an external inflation device, the inflation nozzle being configured to be in gas communication with the hollow cavity so as to inflate the hollow cavity with gas at a predetermined pressure, such that the sealing performance between the sealing ring body and the chassis and the housing is detected by inflating the hollow cavity with gas at the predetermined pressure; the sealing ring body comprises an inner circumferential wall and an outer circumferential wall extending along the same central axis, and a connecting wall located between the inner circumferential wall and the outer circumferential wall, the connecting wall dividing the hollow cavity into an upper cavity and a lower cavity spaced apart in an up-down direction, and upper end faces of the inner circumferential wall and the outer circumferential wall are both adapted to abut against the chassis, and lower end faces of the inner circumferential wall and the outer circumferential wall are both adapted to abut against the housing; a plurality of through holes are formed on the connecting wall and spaced apart from each other in a circumferential direction, so as to form the upper cavity and the lower cavity in gas communication.

2. The seal assembly for a vehicle of claim 1, wherein, The inflation nozzle is adapted to be fixed on the chassis and / or the housing.

3. The seal assembly for a vehicle of claim 1, wherein, The sealing ring assembly further comprises: a pressure sensor adapted to be fixed on the chassis and / or the housing, and the pressure sensor being configured to be in communication with the hollow cavity so as to detect the gas pressure of the hollow cavity.

4. A vehicle characterized by comprising: The vehicle comprises, a housing; a stationary air conditioner fixed on the housing; and a sealing ring assembly according to any one of claims 1-3, the sealing ring assembly being fixed between the housing and a chassis of the stationary air conditioner. A first mounting hole is formed on the chassis and / or the housing, the inflation nozzle of the sealing ring assembly passes through the first mounting hole and extends into a hollow cavity enclosed by the sealing ring body of the sealing ring assembly, the housing and the chassis, so as to inflate the hollow cavity.

5. The vehicle of claim 4, wherein, An outer thread is formed on an outer circumferential wall of the inflation nozzle, an upper nut and a lower nut are sleeved on the inflation nozzle and matched with the outer thread, and 6. The vehicle of claim 5, wherein the upper nut and the lower nut are arranged on the upper side and the lower side of the chassis, respectively, and / or the upper nut and the lower nut are arranged on the upper side and the lower side of the housing, respectively. A sealing gasket is further sleeved on the inflation nozzle, and 7. The vehicle of claim 6, wherein the sealing gasket is positioned between the upper nut and the chassis and between the lower nut and the chassis, respectively, and / or the sealing gasket is positioned between the upper nut and the housing and between the lower nut and the housing, respectively. A second mounting hole is formed on the chassis and / or the housing and spaced apart from the first mounting hole, and 8. The vehicle of any of claims 5-7, characterized in that, the sealing ring assembly comprises a pressure sensor fixed on the chassis and / or the housing and extending into the hollow cavity from the second mounting hole, so as to detect the gas pressure of the hollow cavity. ​ 9. A method of detecting the sealing performance, characterized by, The detection method is performed in a vehicle according to any one of claims 4-8, and the detection method comprises: filling a gas with a predetermined pressure into a hollow cavity enclosed by the sealing ring body, the shell and the chassis together; detecting the air pressure in the hollow cavity after a preset period of time; comparing the measured air pressure with the predetermined pressure; based on the comparison result, determining the sealing performance between the sealing ring body and the shell and the chassis.

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