Sealing device for vehicle-mounted air conditioner and vehicle-mounted air conditioner
By using sealing rings and pressing components in the sealing device of vehicle air conditioners, the problem of easy failure of adhesive fixation of existing sealing devices is solved, and more efficient sealing effect and waterproof performance are achieved.
Patent Information
- Application Number
- CN202420412195.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-04
AI Technical Summary
The sealing device of existing vehicle air conditioners is prone to failure due to the adhesive fixation, which causes the sealing cotton to fall off, affecting the sealing effect, and the sealing cotton cannot be waterproof.
The sealing ring and a compression assembly are adopted. The sealing ring is located in the sealing groove. The compression assembly includes a buffer extrusion and a connection member. The buffer extrusion is in contact with the sealing ring, and the connection member is connected to the top of the cab. The sealing ring is squeezed through the buffer extrusion member to improve the sealing effect.
Through the combination of sealing ring and compression assembly, ensure that the sealing ring is closely attached to the connection between the indoor unit and the cab, improving the sealing effect, and preventing the sealing ring from falling off, enhancing waterproofing.
Smart Images
Figure CN222559163U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of vehicle air conditioners, and in particular to a sealing device for a vehicle air conditioner and a vehicle air conditioner. Background Art
[0002] Car air conditioner is an air conditioning system installed in a car. Car air conditioner is similar to other air conditioning systems, and also includes indoor unit and outdoor unit. The difference is that in order to save space in the cab, the indoor unit is generally arranged outside the cab. For this reason, the sealing of the air outlet and return air outlet on the housing of the indoor unit and connected to the cab is particularly important.
[0003] In the related art, the air outlet or return air outlet on the housing of the indoor unit connected to the cab is generally sealed with sealing cotton. That is, a sealing groove is set on the housing of the indoor unit, and the sealing groove surrounds the air outlet or return air outlet. The sealing cotton is bonded in the sealing groove by adhesive. When the housing of the indoor unit is connected to the top of the cab, the sealing cotton is squeezed, so that the air outlet and return air outlet can be sealed by the sealing cotton to prevent air leakage at the connection between the housing of the indoor unit and the cab.
[0004] However, since the sealing cotton is fixed by viscose, after long-term use, the viscose is too easy to fail, causing the sealing cotton to fall off and affect the sealing effect. Moreover, the sealing cotton can only prevent wind but not water, which also affects the sealing effect. Utility Model Content
[0005] The embodiment of the present disclosure provides a sealing device for a vehicle air conditioner and a vehicle air conditioner, which can improve the sealing effect of the sealing device. The technical solution is as follows:
[0006] The disclosed embodiment provides a sealing device for a vehicle air conditioner, wherein the vehicle air conditioner comprises an indoor unit and an outdoor unit, wherein the indoor unit is connected to the outdoor unit, and the indoor unit has an air outlet and a sealing groove, wherein the sealing groove surrounds the outer periphery of the corresponding air outlet; the sealing device comprises a sealing ring and a clamping assembly, wherein the sealing ring is located in the sealing groove, and the opening of the sealing groove is located on one side of the sealing ring in the axial direction of the sealing ring; the clamping assembly comprises a buffer extrusion piece and a connecting piece, wherein the buffer extrusion piece is located in the sealing groove and on the side of the opening of the sealing ring facing the sealing groove in the axial direction of the sealing ring, and the buffer extrusion piece abuts against the sealing ring; in the axial direction of the sealing ring, one side of the connecting piece is inserted into the buffer extrusion piece, and the other side is connected to the top of the cab.
[0007] In yet another implementation of the present disclosure, the buffer extrusion member is an annular rubber ring.
[0008] In another implementation of the present disclosure, the buffer extrusion member includes a first pressure ring and a second pressure ring, the first pressure ring and the second pressure ring are arranged in sequence and connected in the axial direction of the sealing ring, in the radial direction of the sealing ring, the maximum width of the first pressure ring is greater than the maximum width of the second pressure ring, the first pressure ring is abutted against the sealing ring, and the second pressure ring is wrapped around the outside of the connecting member on the side facing the sealing ring.
[0009] In another implementation of the present disclosure, the first cross-section of the first clamping ring is circular, and the plane where the first cross-section of the first clamping ring is located passes through the axis of the first clamping ring.
[0010] In another implementation of the present disclosure, the second cross-section of the second clamping ring is a rectangle, the plane where the second cross-section of the second clamping ring is located passes through the axis of the second clamping ring, and the length direction of the rectangle is the same as the axis direction of the second clamping ring.
[0011] In another implementation of the present disclosure, the second clamping ring has an opening on a side away from the first clamping ring, and a side of the connecting member facing the sealing ring is partially located in the opening of the first clamping ring.
[0012] In yet another implementation of the present disclosure, the connecting member is a frame-type structure, the top of the frame-type structure is located in the opening, and the bottom of the frame-type structure is connected to the top of the cab.
[0013] In another implementation of the present disclosure, the connecting member includes a plurality of connecting plates, the plurality of connecting plates are sequentially connected end to end, and the connecting plates are parallel to the axial direction of the sealing ring.
[0014] In another implementation of the present disclosure, the thickness of the sealing ring in its own axial direction is at least 5 mm.
[0015] On the other hand, the present disclosure also provides a vehicle air conditioner, which includes an indoor unit, an outdoor unit, a compressor and a sealing device, wherein the compressor is connected to the indoor unit and the outdoor unit respectively, and the indoor unit and the outdoor unit are both connected to a car, and the sealing device is connected between the indoor unit and the body of the car, and the sealing device is the sealing device described above.
[0016] The technical solution provided by the embodiments of the present disclosure has the following beneficial effects:
[0017] When the sealing device provided by the embodiment of the present disclosure is used to seal the indoor unit and the cab, since the sealing device includes a sealing ring and a clamping assembly, and the clamping assembly includes a buffer extrusion piece and a connecting piece, and the buffer extrusion piece and the sealing ring are in contact with each other, the sealing ring can be squeezed by the buffer extrusion piece, which, on the one hand, prevents the sealing ring from falling out of the groove, and on the other hand, can squeeze and deform the sealing ring so that the sealing ring can fit tightly at the connection between the indoor unit and the cab. Moreover, since one side of the connecting piece is inserted into the buffer extrusion piece and the other side is connected to the top of the cab, the buffer extrusion piece can be squeezed between the top of the cab and the groove through the connecting piece, thereby further squeezing the sealing ring by the buffer extrusion piece to improve the sealing effect, and at the same time, the sealing ring will not fall off and affect the sealing. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 A schematic diagram of the structure of a vehicle air conditioner provided in an embodiment of the present disclosure;
[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0021] The symbols in the figure mean the following:
[0022] 100, housing; 1001, top plate; 1002, side plate; 1003, bottom plate; 1004, connecting plate; 101, air outlet; 103, sealing groove; 200, evaporator; 300, evaporation fan;
[0023] 1. Sealing ring; 2. Compression assembly; 21. Buffer extrusion piece; 211. First compression ring; 2110. First section; 212. Second compression ring; 2120. Second section; 22. Connector; 221. Connecting plate. DETAILED DESCRIPTION
[0024] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.
[0025] The embodiment of the present disclosure provides a vehicle air conditioner. The vehicle air conditioner is an air conditioning system used in a vehicle, which is usually installed on the top of the cab. The vehicle air conditioner includes an indoor unit, an outdoor unit, a compressor and a sealing device. In order to save space in the cab, the indoor unit and the outdoor unit are generally installed on the outer top of the cab, and the indoor unit is connected to the outdoor unit to achieve connectivity between the indoor unit and the outdoor unit.
[0026] See also Figure 1 The indoor unit mentioned above includes a housing 100, an evaporator 200 and an evaporation fan 300. The evaporator 200 and the evaporation fan 300 are both connected to the housing 100, and the housing 100 is connected to the top of the cab of the car. The sealing device is connected between the housing 100 and the top of the cab, and the sealing device is the sealing device mentioned below.
[0027] The outdoor unit includes a condenser and a condensing fan, etc. The vehicle air conditioner also includes a compressor, an expansion valve, and a throttling assembly, etc. The compressor is connected to the outdoor unit. The expansion valve is located outside the indoor unit and is connected to the housing 100 of the indoor unit. The throttling assembly is located in the housing 100 of the indoor unit and is connected to the evaporator 200 and the condenser.
[0028] In this way, when the car's cab needs to be cooled, the compressor is turned on, and the compressor pressurizes the heat exchange medium into a high-temperature and high-pressure heat exchange medium. The heat exchange medium enters the condenser through a pipeline, and exchanges heat with the air at normal temperature in the condenser to be liquefied into a high-pressure and normal-temperature heat exchange medium. The heat exchange medium is throttled by the throttling component and then vaporized into a low-temperature and low-pressure gaseous heat exchange medium and enters the evaporator. The gaseous heat exchange medium absorbs the heat in the car space in the evaporator and then enters the compressor again to circulate the above process, thereby continuously cooling the cab.
[0029] When heating is needed, the compressor compresses the heat exchange medium into a high-temperature and high-pressure heat exchange medium. The heat exchange medium enters the evaporator through pipes and the like to exchange heat with the normal-temperature air in the cab, thereby increasing the temperature in the cab and at the same time transforming into a high-pressure and normal-temperature heat exchange medium. The heat exchange medium passes through the throttling component and is throttled and depressurized, transforming into a low-temperature and low-pressure heat exchange medium. The heat exchange medium enters the condenser to exchange heat with the normal-temperature air outside and at the same time transforming into a low-pressure and normal-temperature heat exchange medium. The heat exchange medium enters the compressor again for cyclic heating.
[0030] In this embodiment, the housing 100 is a box structure, which includes a top plate 1001, four side plates 1002, a bottom plate 1003 and a plurality of connecting plates 1004. The top plate 1001 is arranged opposite to the bottom plate 1003. The four side plates 1002 are vertically connected between the bottom plate 1003 and the top plate 1001. The plurality of connecting plates 1004 are respectively connected to opposite sides of the bottom plate 1003 and are used to be connected to the top of the cab of the car.
[0031] In order to facilitate the communication between the indoor unit and the cab, the middle part of the bottom plate 1003 is provided with at least one air port 101 and at least one sealing groove 103. The air port 101 is connected to the cab. The sealing groove 103 surrounds the outer periphery of the corresponding air port 101. The air port 101 is used for ventilation between the indoor unit and the cab. There are generally two air ports 101, one of which is an air outlet and the other is a return air port.
[0032] In this embodiment, the air outlet 101 is a rectangular opening, and correspondingly, the ring formed by the sealing groove 103 is a rectangle. In order to facilitate the formation of the sealing groove 103, a U-shaped sheet metal part can be welded around the air outlet 101 of the housing 100 to form a rectangular sealing groove 103.
[0033] Continue to see Figure 1 The embodiment of the present disclosure provides a sealing device, which is used to seal between the housing 100 of the indoor unit and the cab.
[0034] The sealing device includes a sealing ring 1 and a clamping assembly 2. The sealing ring 1 is located in a sealing groove 103, and the opening of the sealing groove 103 is located on one side of the sealing ring 1 in the axial direction of the sealing ring 1. The clamping assembly 2 includes a buffer extrusion 21 and a connecting member 22. The buffer extrusion 21 is located in the sealing groove 103 and is located on the side of the opening of the sealing ring 1 facing the sealing groove 103 in the axial direction of the sealing ring 1. The buffer extrusion 21 abuts against the sealing ring 1. In the axial direction of the sealing ring 1, one side of the connecting member 22 is inserted into the buffer extrusion 21, and the other side is connected to the top of the cab.
[0035] When the sealing device provided by the embodiment of the present disclosure is used to seal the indoor unit and the cab, since the sealing device includes a sealing ring 1 and a clamping assembly 2, and the clamping assembly 2 includes a buffer extrusion piece 21 and a connecting piece 22, and the buffer extrusion piece 21 is in contact with the sealing ring 1, the sealing ring 1 can be squeezed by the buffer extrusion piece 21, which, on the one hand, prevents the sealing ring 1 from falling out of the sealing groove 103, and on the other hand, can squeeze and deform the sealing ring 1 so that the sealing ring 1 can fit tightly at the connection between the indoor unit and the cab. Moreover, since one side of the connecting piece 22 is inserted into the buffer extrusion piece 21 and the other side is connected to the top of the cab, the buffer extrusion piece 21 can be squeezed between the top of the cab and the sealing groove 103 through the connecting piece 22, thereby further squeezing the sealing ring 1 by the buffer extrusion piece 21 to improve the sealing effect, and at the same time, prevents the sealing ring 1 from falling and affecting the sealing.
[0036] In this embodiment, the sealing ring 1 is in a rectangular ring shape and is a polytetrafluoroethylene structural member or a rubber structural member, so that the sealing ring 1 has a certain deformation ability, thereby improving the sealing effect.
[0037] Optionally, the buffer extrusion member 21 is a rectangular annular rubber sealing ring.
[0038] In the above implementation, the buffer extrusion piece 21 is set as a rectangular annular rubber ring, so that it can be directly pressed onto the annular sealing ring 1 through the annular structure, so that the sealing ring 1 can be pressed in the entire circumference, thereby improving the pressing effect between the buffer extrusion piece 21 and the sealing ring 1.
[0039] Of course, the buffer extrusion member 21 may also be a frame-shaped structure formed by bonding a plurality of rubber strips end to end. As long as the buffer extrusion member 21 can have a compressive effect on the entire circumference of the sealing ring 1, the present disclosure does not limit this.
[0040] Figure 2 for Figure 1 The enlarged picture of A in the middle, combined with Figure 2 Optionally, the buffer extrusion member 21 includes a first clamping ring 211 and a second clamping ring 212, which are arranged in sequence and connected in the axial direction of the sealing ring 1. In the radial direction of the sealing ring 1, the maximum width of the first clamping ring 211 is greater than the maximum width of the second clamping ring 212, the first clamping ring 211 abuts against the sealing ring 1, and the second clamping ring 212 is wrapped outside the side of the connecting member 22 facing the sealing ring 1.
[0041] In the above implementation, the buffer extrusion member 21 is configured as a first clamping ring 211 and a second clamping ring 212 , so that the sealing ring 1 can be pressed by the first clamping ring 211 and connected to the connecting member 22 by the second clamping ring 212 .
[0042] Moreover, in the radial direction of the sealing ring 1, the maximum width of the first clamping ring 211 is greater than the maximum width of the second clamping ring 212, so that the contact area between the first clamping ring 211 and the sealing ring 1 can be increased to improve the pressing effect of the two.
[0043] Of course, the buffer extrusion member 21 may also be other structures, for example, a plurality of protrusions are added to an annular rubber ring, and the plurality of protrusions are connected at intervals on the circumference of the rubber ring.
[0044] Optionally, the first cross section 2110 of the first clamping ring 211 is circular, and the plane where the first cross section 2110 of the first clamping ring 211 is located passes through the axis of the first clamping ring 211 .
[0045] In the above implementation, the first cross-section 2110 of the first clamping ring 211 is set to a circle, so that after the first clamping ring 211 with a circular structure contacts the sealing ring 1, it can be quickly deformed under the action of the connecting member 22, thereby further sealing the sealing groove 103 on the basis of the sealing ring 1, thereby improving the sealing performance.
[0046] Optionally, the cross section of the second clamping ring 212 is a rectangle, and the plane where the second cross section 2120 of the second clamping ring 212 is located passes through the axis of the second clamping ring 212. The length direction of the rectangle is the same as the axis direction of the second clamping ring 212.
[0047] In the above implementation, the second cross section 2120 of the second clamping ring 212 is set to be rectangular, so as to facilitate connection with the connecting member 22. Of course, the second clamping ring 212 can also be other structures, such as a rubber ring with a square cross section.
[0048] Optionally, a side of the second clamping ring 212 away from the first clamping ring 211 has an opening, and a side of the connecting member 22 facing the sealing ring 1 is partially located in the opening of the first clamping ring 211 .
[0049] In the above implementation, an opening is provided on the second clamping ring 212 to facilitate the quick insertion of the connecting member 22 into the second clamping ring 212 so that the two can be quickly assembled.
[0050] Optionally, the connecting member 22 is a frame-type structure, the top of the frame-type structure is located in the opening, and the bottom of the frame-type structure is connected to the top of the cab.
[0051] The connecting member 22 of the frame-type structure can cooperate with the annular second clamping ring 212 , so that the connecting member 22 can be stably inserted into the second clamping ring 212 .
[0052] Optionally, the connecting member 22 includes a plurality of connecting plates 221 , which are connected end to end in sequence to form a rectangular frame. The connecting plates 221 are flat plate structures, and the connecting plates 221 are parallel to the axial direction of the sealing ring 1 .
[0053] In the above implementation, a plurality of connecting plates 221 are connected end to end in sequence to form a rectangular frame. This not only can simply form a rectangular frame, but also can match the rectangular frame with the rectangular annular second clamping ring 212, so that the entire circumference of the second clamping ring 212 will be squeezed by the connecting plates 221, and finally the clamping effect of the buffer extrusion member 21 on the sealing ring 1 is improved.
[0054] In this embodiment, there are four connecting plates 221, and the four connecting plates 221 are opposite to each other to form a rectangular frame. Optionally, the connecting plates 221 are sheet metal structural parts. This facilitates the processing of the connecting plates 221, thereby improving the processing efficiency.
[0055] Of course, the connecting plate 221 may also be other structural parts, such as a resin plate structural part.
[0056] Exemplarily, in order to facilitate the connection of multiple connection plates 221, two adjacent connection plates 221 are connected together by welding.
[0057] Optionally, the thickness of the sealing ring 1 in its own axial direction is at least 5 mm.
[0058] In the above implementation, the thickness of the sealing ring 1 is set to at least 5 mm, so that the sealing ring 1 has a certain wear resistance and will not be easily crushed, thereby extending the service life.
[0059] In this embodiment, in order to facilitate the installation of the sealing ring 1 , adhesive may be applied to the bottom of the sealing groove 103 in advance, and the sealing ring 1 may be directly positioned and installed in the sealing groove 103 by the adhesive.
[0060] The following is a brief introduction to the installation process and use of the sealing device provided in the embodiment of the present disclosure:
[0061] First, sheet metal parts are welded on the housing 100 to form a sealing groove 103 , and the sealing groove 103 u surrounds the corresponding air outlet 101 .
[0062] Next, the sealing ring 1 is glued to the bottom of the sealing groove 103. The first clamping ring 211 is located in the sealing groove 103 and abuts against the sealing ring 1. At the same time, the second clamping ring 212 is wrapped around a part of the structure of the connecting member 22, and the connecting member 22 is positioned together with the top of the cab of the car.
[0063] Finally, the connecting piece 22 is welded to the top of the cab.
[0064] In the above sealing device, the sealing ring 1 is used in combination with the buffer extrusion member 21, so it can be completely waterproof. Moreover, the buffer extrusion member 21 is directly wrapped on the connecting member 22 of the sheet metal structure. In this way, the sealing device can always be in a compressed state after installation and will not fall off.
[0065] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.
Claims
1. A sealing device for a vehicle air conditioner, characterized in that: The vehicle air conditioner comprises an indoor unit and an outdoor unit, the indoor unit is connected to the outdoor unit, the indoor unit has an air outlet (101) and a sealing groove (103), and the sealing groove (103) surrounds the outer periphery of the corresponding air outlet (101); The sealing device comprises a sealing ring (1) and a pressing assembly (2), wherein the sealing ring (1) is located in the sealing groove (103), and the opening of the sealing groove (103) is located on one side of the sealing ring (1) in the axial direction of the sealing ring (1); The pressing assembly (2) comprises a buffer extrusion piece (21) and a connecting piece (22); the buffer extrusion piece (21) is located in the sealing groove (103) and is located on the side of the opening of the sealing ring (1) facing the sealing groove (103) in the axial direction of the sealing ring (1); the buffer extrusion piece (21) abuts against the sealing ring (1); In the axial direction of the sealing ring (1), one side of the connecting piece (22) is inserted into the buffer extrusion piece (21), and the other side is connected to the top of the cab.
2. The sealing device according to claim 1, characterized in that: The buffer extrusion member (21) is an annular rubber ring.
3. The sealing device according to claim 2, characterized in that: The buffer extrusion member (21) comprises a first clamping ring (211) and a second clamping ring (212), wherein the first clamping ring (211) and the second clamping ring (212) are arranged in sequence and connected in the axial direction of the sealing ring (1), and in the radial direction of the sealing ring (1), the maximum width of the first clamping ring (211) is greater than the maximum width of the second clamping ring (212), the first clamping ring (211) is in contact with the sealing ring (1), and the second clamping ring (212) is wrapped around the outside of the connecting member (22) on one side facing the sealing ring (1).
4. The sealing device according to claim 3, characterized in that: The first cross section (2110) of the first clamping ring (211) is circular, and the plane where the first cross section (2110) of the first clamping ring (211) is located passes through the axis of the first clamping ring (211).
5. The sealing device according to claim 3, characterized in that: The second cross section (2120) of the second clamping ring (212) is a rectangle, the plane where the second cross section (2120) of the second clamping ring (212) is located passes through the axis of the second clamping ring (212), and the length direction of the rectangle is the same as the axis direction of the second clamping ring (212).
6. The sealing device according to claim 5, characterized in that: The second clamping ring (212) has an opening on a side away from the first clamping ring (211), and a side of the connecting member (22) facing the sealing ring (1) is partially located in the opening of the first clamping ring (211).
7. The sealing device according to claim 6, characterized in that: The connecting member (22) is a frame-type structure, the top of the frame-type structure is located in the opening, and the bottom of the frame-type structure is connected to the top of the cab.
8. The sealing device according to claim 7, characterized in that: The connecting member (22) comprises a plurality of connecting plates (221), the plurality of connecting plates (221) are connected end to end in sequence, and the connecting plates (221) are parallel to the axial direction of the sealing ring (1).
9. The sealing device according to any one of claims 1 to 8, characterized in that: The thickness of the sealing ring (1) in the direction of its own axis is at least 5 mm.
10. A vehicle air conditioner, characterized in that: The vehicle air conditioner includes an indoor unit, an outdoor unit, a compressor and a sealing device, the compressor is connected to the indoor unit and the outdoor unit respectively, the indoor unit and the outdoor unit are both connected to the car, the sealing device is connected between the indoor unit and the body of the car, and the sealing device is the sealing device described in any one of claims 1 to 9.