CN116278618A - Sealing device for automobile air conditioner box and firewall and automobile comprising sealing device - Google Patents

Sealing device for automobile air conditioner box and firewall and automobile comprising sealing device Download PDF

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Publication number
CN116278618A
CN116278618A CN202310377334.XA CN202310377334A CN116278618A CN 116278618 A CN116278618 A CN 116278618A CN 202310377334 A CN202310377334 A CN 202310377334A CN 116278618 A CN116278618 A CN 116278618A
Authority
CN
China
Prior art keywords
firewall
clamping body
air conditioner
sealing device
communication hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310377334.XA
Other languages
Chinese (zh)
Inventor
张科
陈荣辉
王丹瑜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
Original Assignee
SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAIC General Motors Corp Ltd, Pan Asia Technical Automotive Center Co Ltd filed Critical SAIC General Motors Corp Ltd
Priority to CN202310377334.XA priority Critical patent/CN116278618A/en
Publication of CN116278618A publication Critical patent/CN116278618A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0815—Acoustic or thermal insulation of passenger compartments
    • B60R13/083—Acoustic or thermal insulation of passenger compartments for fire walls or floors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H2001/006—Noise reduction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H2001/00635—Air-tight sealing devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The application provides a sealing device for an automobile air conditioner box and prevent wall and contain its car, sealing device include first clamping body, with the second clamping body that first clamping body set up relatively, and set up first clamping body with the connector between the second clamping body, wherein, the connector is used for setting up in preventing wall's intercommunicating pore, and first clamping body with the second clamping body is used for being located the both sides of preventing wall respectively, and this sealing member is independent part, and is sealed effectual, simultaneously, the structure helps simplifying the installation operation of air conditioner box, improves work efficiency, and especially this sealing device does not produce the effort to the instrument board, guarantees the normal and the safety of instrument board.

Description

Sealing device for automobile air conditioner box and firewall and automobile comprising sealing device
Technical Field
The invention belongs to the technical field of automobile engineering, and particularly relates to a sealing device for an automobile air conditioner box and a firewall and an automobile comprising the sealing device.
Background
Air conditioning pipeline valve parts in the passenger cabin of the automobile, such as a heating water pipe, a thermal expansion valve and the like, need to pass through a firewall and then be connected with parts such as a compressor, a heat exchanger and the like in the engine cabin. Thus, corresponding openings are required in the firewall. When the vehicle runs in wading, the tire splashes water and can directly impact the fireproof wall, so that the holes of the fireproof wall are all required to be waterproof and sealed, otherwise, water can directly invade the passenger cabin through the holes, and then the automobile is polluted, even the connection of circuits and the like is influenced, and potential safety hazards are generated.
At present, the conventional firewall opening sealing mode is realized by carrying out interference compression on foam and firewall metal plates of an air conditioner box and carrying out interference wrapping on the foam and an outer ring of a pipeline valve member. This way of sealing has some problems. For example, air conditioning units are integrated into a vehicle dashboard assembly. When the whole automobile is assembled, the instrument board assembly horizontally advances to the direction of the head of the automobile from the back of the automobile through the production line tool, and is matched with structures such as mounting pin holes on the automobile body to finish the fixation of the instrument board. The air conditioning unit is also matched with the opening of the firewall in this installation mode. Because the sealed foam on the air conditioner box is in interference fit with the metal plate, the foam can generate reverse acting force on the whole instrument board after being compressed, and the instrument board is prevented from moving forwards. When the instrument board is installed, the horizontal installation thrust to the direction of the vehicle head is overlarge, and the installation efficiency is affected. The reactive force of the foam also can cause the instrument panel to locally deform, and the cooperation with the whole vehicle fixing feature or other parts becomes poor, so that the assembly cannot be performed. However, the design values of the density and the compression interference of the foam cannot be too small, otherwise, the foam cannot play a role in sealing.
Thus, there is a need to design a sealing device for an air conditioning box and a firewall of an automobile for eliminating the potential problem of water intrusion and ensuring the safety of an instrument panel and the like.
Disclosure of Invention
In view of some or all of the above technical problems existing in the prior art, the present invention provides a sealing device for an air conditioner box and a firewall of an automobile and an automobile comprising the sealing device. The sealing element of the sealing device for the automobile air conditioning box and the firewall is an independent component, the sealing effect is good, and meanwhile, the structure is beneficial to simplifying the installation operation of the air conditioning box and improving the working efficiency. In particular, the sealing device does not generate bad acting force on the instrument panel, and ensures the normal and safety of the instrument panel.
According to an aspect of the present invention, there is provided a sealing device for an air conditioning unit and a firewall of a vehicle, comprising a seal member including:
the first clamping body is provided with a first clamping body,
a second clamping body arranged opposite to the first clamping body,
a connecting body arranged between the first clamping body and the second clamping body,
the connecting body is used for being arranged in the communication hole of the firewall, and the first clamping body and the second clamping body are used for being respectively positioned on two sides of the firewall.
In one embodiment, the first clamping body, the second clamping body, and the connecting body are configured as an integral member, and the first clamping body is configured to pass from an engine compartment side to a passenger compartment side through a communication hole of a firewall.
In one embodiment, the first clamping body increases in cross-sectional area in a direction from the free end to the fixed end.
In one embodiment, a plurality of sleeved abutting rings are arranged on the abutting surface of the first clamping body opposite to the firewall in a protruding mode.
In one embodiment, a slider is provided on the outer wall of the free end of the first clamping body.
In one embodiment, the fire protection device further comprises a sound insulation pad, wherein the sound insulation pad is arranged on the passenger cabin side of the fire protection wall in a clinging mode, and a containing groove for containing the first clamping body is formed in the sound insulation pad.
In one embodiment, the firewall further comprises a water guide rib arranged on the engine cabin side of the firewall, the water guide rib is a protruding ring surrounding the communication hole of the firewall, and the second clamping body is provided with a water guide groove for accommodating the water guide rib.
In one embodiment, an arc-shaped ring is arranged at the free end of the water guide rib.
In one embodiment, the seal is made of foam.
According to another aspect of the present invention, there is provided an automobile comprising:
a firewall provided with a communication hole for penetrating the engine compartment and the passenger compartment,
an air conditioning box located within the passenger compartment,
the sealing device for the automobile air-conditioning box and the firewall,
a pipe valve member having one end connected to the air conditioning unit and the other end extending toward the engine compartment through the communication hole.
Compared with the prior art, the invention has the advantages that: this a sealing member for sealing device of car air conditioning case and firewall is independent part to this kind of centre gripping mode that is located the both sides of firewall respectively through first centre gripping body and second centre gripping body sets up the firewall, has avoided exerting great power through the air conditioning case end, directly compresses the bubble cotton to the firewall panel beating on, and then avoids the problem that the bubble cotton of compression produced reverse effort to the instrument board whole and the instrument board local deformation that arouses. Meanwhile, the sealing piece penetrates through the communication hole, and the sealing effect is high in reliability. Also, the above structure is helpful for simplifying the installation operation of the air conditioner box and improving the working efficiency.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 illustrates a cross-sectional view of a sealing device for an automotive air conditioning case and firewall according to one embodiment of the invention;
FIG. 2 is a left side view showing a communication hole and a water guide rib of a firewall for a sealing device of an air conditioner box and the firewall of an automobile according to an embodiment of the invention;
FIG. 3 shows a cross-sectional view of a water deflector according to one embodiment of the present invention;
fig. 4 shows a cross-sectional view of a first abutment according to an embodiment of the invention.
In the drawings, like parts are designated with like reference numerals. The figures are not drawn to scale.
Detailed Description
In order to make the technical solution and advantages of the present invention more apparent, exemplary embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some of the embodiments of the present invention and are not exhaustive of all embodiments. And embodiments of the invention and features of the embodiments may be combined with each other without conflict.
The embodiment of the invention provides a sealing device for an automobile air conditioner box and a firewall. As shown in fig. 1, a sealing device for an air conditioning box and a firewall of a vehicle comprises a sealing member 1. Specifically, the seal member 1 includes a first clamping body 11, a second clamping body 12, and a connecting body 13. Wherein the second clamping body 12 is arranged opposite to the first clamping body 11. And the connecting body 13 is provided between the first clamping body 11 and the second clamping body 12. After installation, the connector 13 is disposed in the communication hole 101 of the firewall 10, and the first and second clamps 11 and 12 are located at both sides of the firewall 10, respectively.
The sealing member 1 for the sealing device of the air conditioner 20 and the firewall 10 is a separate component and is provided to the firewall 10 by a penetrating and clamping manner in which the first clamping body 11 and the second clamping body 12 of the sealing member are respectively positioned at both sides of the firewall 10 while the connecting body 13 is positioned at the communication hole 101. Thus, the sealing performance of the sealing mode is more reliable. Simultaneously, this kind of mode has avoided exerting great power through the air conditioning case end in the prior art, directly compresses the cotton to the firewall panel beating with the bubble. Furthermore, the sealing element 1 of the sealing device of the application does not generate great reverse force on the air conditioning box 20, and does not cause local deformation of the instrument panel, thereby maintaining the safety of the instrument panel. Meanwhile, the sealing piece 1 can not generate great compression in the front-rear direction, so that when the pipeline valve piece connected with the air conditioning box 20 passes through the sealing piece 1, cracks can not be generated between sealing surfaces of the sealing piece and the pipeline valve piece, and the sealing effect is ensured to avoid wading to splash into the passenger cabin 30. In addition, the sealing member 1 does not need to be arranged on the air conditioning box 20 in advance, and can be installed separately from the air conditioning box 20, and in the installation process, the instrument panel is not limited by foam compression reaction force, so that the air conditioning box installation operation is simplified, and the working efficiency is improved.
In one embodiment, the first clamping body 11, the second clamping body 12 and the connecting body 13 are constructed as a one-piece component. Preferably, the seal 1 is a foam part. Foam parts are often foam molded using PU or EPDM. Therefore, the sealing device does not change the existing part materials, and is low in improvement cost. The first clamping body 11 is configured to pass from the engine compartment side to the passenger compartment side through the communication hole 101 of the firewall 10, and to enter the passenger compartment 30 from the engine compartment 40. Preferably, the first clamping body 11 is reduced in cross-sectional area in a direction from the fixed end to the free end to be guided during installation and to pass through the communication hole 101 more easily. For manufacturing convenience, for example, the free end of the first clamping body 11 may be chamfered.
In one embodiment, as shown in fig. 4, a plurality of sleeved abutment rings 14 are provided on an abutment surface of the first clamping body 11 opposite to the firewall 10 in a protruding manner. The abutting ring 14 is easy to deform, after the first clamping body 11 is installed, the abutting ring 14 is easy to deform, and a sealing ring is formed, so that the sealing effect is improved. It will be appreciated that the abutment ring 14 is integrally formed with the first clamping body 11.
As shown in fig. 4, a slider is provided at the free end of the first clamping body 11. The slider comprises a sleeve-shaped slider body 15 and an umbrella rib member 16 fixedly connected with the slider body 15. The opening is not closed in the circumferential direction but can be one or a plurality of openings. The slider may be made of a resilient metal, such as steel, and the rib member 16 is configured as a plurality of resilient jaws circumferentially spaced apart. The effective outer diameter of the slider body 15 at the most free end of the seal member 1 is smaller than the effective inner diameter of the communication hole 101. In mounting, the slider body 15 can be positioned quickly at the communication hole 101, and the first clamping body 11 is guided to pass through the communication hole 101 more easily by the relatively smooth contact of the slider body 15 with the inner wall of the communication hole 101. As the first clamping body 11 is inserted into the communication hole 101, the effective outer diameter of the first clamping member 11 is larger than the effective inner diameter of the communication hole 101, so that the first clamping member 11 deforms to radially contract, the arrangement of the rib member 16 does not affect the deformation and radial contraction of the first clamping body 11, and the rib member can relatively smoothly contact with the inner wall of the communication hole 101 in the passing process, thereby ensuring smooth passing.
The sealing device further comprises a sound insulation mat 2. The sound insulation mat 2 is provided on the passenger compartment side of the firewall 10 in a close contact manner. And a receiving groove 21 for receiving the first clamping body 11 is provided on the soundproof pad 2. In the related art, since foam is directly formed on the front end surface of the air conditioning case 20, a sound insulation pad cannot be provided at the communication hole. In the arrangement of the present application, however, a sound insulation mat 2 may be provided between the seal 1 and the air conditioning case 20. Therefore, the sealing device of the present application can further improve the noise-resistant effect of the passenger compartment 30, and ensure the sound-insulating effect of the passenger compartment 30 relative to the outside.
A water guide rib 102 is provided on the engine compartment side of the firewall 10. As shown in fig. 3, the water guide rib 102 is configured as a protruding ring surrounding the outside of the communication hole 101. Meanwhile, a water guide groove 17 for accommodating the water guide rib 102 is provided on the second clamp body 12. After installation, the water guide ribs 102 are inserted into the water guide grooves 17. As shown in fig. 3, preferably, an arc-shaped ring 103 is provided at the free end of the water guide rib 102. After the water guide ribs 102 on the outer ring of the communication hole 101 are embedded with the water guide grooves 17 of the sealing member 1, water on the periphery of the communication hole 101 can be completely isolated, and water is prevented from entering the passenger compartment 30 through the communication hole 101. The height of the water guide ribs 102 plus the arcuate ring 103 may be greater than the depth of the corresponding water guide channel 17. After the first abutment 11 of the seal member 1 passes through the communication hole 101, the arcuate ring 103 is interference fitted with the bottom of the water guide groove 17, and a reaction force in the direction of the vehicle head is generated to the seal member 1. The arcuate ring 103 can cooperate with the seal 1 in a smooth transition to avoid crack propagation of the second abutment 12 at the water guide groove 17. In addition, the water guide ribs 102 also function to locate and define the position of the seal 1.
The size of the connection piece 13 in the front-rear direction may be slightly smaller than the size of the communication hole 101 in the front-rear direction, so that the first and second abutment pieces 11 and 12 are closely abutted to both sides of the firewall 10 after the sealing member 1 is mounted in place. Thereby, the seal member 1 can be stably provided on the firewall 10. In particular, the arrangement may be such that the abutment ring 14 is deformed and compressed to form a seal.
The application also provides an automobile. The vehicle includes the firewall 10, air conditioning case 20, sealing device for the air conditioning case and firewall of the vehicle and pipeline valve member 50. Wherein the air conditioning case 20 is located within the passenger compartment 30. The pipe valve member 50 has one end connected to the air conditioning case 20 and the other end extending through the sound insulating member 2 and the sealing member 1 toward the engine compartment 40.
In this application, the seal 1 is a separate component that is installed in the engine compartment 40 to avoid direct compression with the firewall 10. The sealing element 1 is installed from front to back from the engine room 40, is plugged into the connecting hole 101 on the firewall 10, the opening on the sealing element 1 is matched with the pipeline valve element 50, and the outer contour is wrapped in an interference manner. Since the second abutment member 12 of the seal member 1 is located in the engine compartment 40, the acoustic insulator pad 2 inside the passenger compartment 30 does not need to be hollowed out as long as it is vertically slotted where the pipe valve member 50 passes through. Since the material of the acoustic insulator mat 2 is soft, the pipe valve member 50 can be easily penetrated along the vertical slit of the acoustic insulator mat 2 when the instrument panel is installed. Therefore, the surface of the seal member 1 abuts against the firewall 10, no additional force is applied to the seal member 1, and no gap is generated between the pipeline valve member 50 and the sealing surface of the seal member 1, so that intrusion of wading splash into the passenger compartment 30 is avoided. The instrument board installation can not be restricted by foam compression reaction force, and the assembly efficiency of the production line is improved. In addition, after the water guide rib 102 is fitted into the water guide groove 17, water around the communication hole 101 of the firewall 10 can be completely isolated, and the water can directly flow down along the water guide rib 102 and drop to the ground. Meanwhile, the soundproof pad 2 in the passenger compartment 30 does not need to be perforated by digging out material, and the soundproof performance is improved.
The terms "front", "rear", "lateral", "longitudinal", "upper" and "lower" in the azimuth of the body of the automobile are all references to the azimuth of the body of the automobile.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all alterations and/or modifications that fall within the scope of the invention, and that are intended to be included within the scope of the invention.

Claims (10)

1. A sealing arrangement for an automotive air conditioning case and firewall comprising a seal comprising:
the first clamping body is provided with a first clamping body,
a second clamping body arranged opposite to the first clamping body,
a connecting body arranged between the first clamping body and the second clamping body,
the connecting body is used for being arranged in the communication hole of the firewall, and the first clamping body and the second clamping body are used for being respectively positioned on two sides of the firewall.
2. The sealing device for an air conditioner box and a firewall according to claim 1, wherein the first clamping body, the second clamping body, and the connecting body are configured as an integral member, and the first clamping body is configured to pass from an engine compartment side to a passenger compartment side through a communication hole of the firewall.
3. A sealing arrangement for a motor vehicle air conditioner and firewall according to claim 2, wherein the first clamping body increases in cross-sectional area from free end to fixed end.
4. A sealing arrangement for a motor vehicle air conditioner and firewall according to claim 2 or 3, characterized in that a plurality of sleeved abutment rings are provided in a protruding manner on the abutment surface of the first clamping body opposite the firewall.
5. A sealing arrangement for a motor vehicle air conditioner and firewall according to any one of claims 2 to 4, wherein a slider is provided on the outer wall of the free end of the first clamping body.
6. A sealing arrangement for a motor vehicle air conditioner and firewall according to any one of claims 2 to 5, further comprising a sound insulating mat disposed snugly on the passenger compartment side of the firewall and provided with a receiving slot for receiving said first clamp body.
7. The sealing device for an air conditioner box and a firewall according to any one of claims 2 to 6, further comprising a water guide rib provided on an engine compartment side of the firewall, the water guide rib being a protruding ring surrounding a communication hole of the firewall, a water guide groove for accommodating the water guide rib being provided on the second clamp body.
8. The sealing device for an air conditioner and firewall of a vehicle according to claim 7, wherein an arc-shaped ring is provided at a free end of the water guide rib.
9. A sealing arrangement for a motor vehicle air conditioner and firewall according to any one of claims 1 to 8, wherein the seal is made of foam.
10. An automobile, comprising:
a firewall provided with a communication hole for penetrating the engine compartment and the passenger compartment,
an air conditioning box located within the passenger compartment,
the sealing device for an automotive air conditioning case and firewall according to any one of claims 1 to 9,
a pipe valve member having one end connected to the air conditioning unit and the other end extending toward the engine compartment through the communication hole.
CN202310377334.XA 2023-04-10 2023-04-10 Sealing device for automobile air conditioner box and firewall and automobile comprising sealing device Pending CN116278618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310377334.XA CN116278618A (en) 2023-04-10 2023-04-10 Sealing device for automobile air conditioner box and firewall and automobile comprising sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310377334.XA CN116278618A (en) 2023-04-10 2023-04-10 Sealing device for automobile air conditioner box and firewall and automobile comprising sealing device

Publications (1)

Publication Number Publication Date
CN116278618A true CN116278618A (en) 2023-06-23

Family

ID=86797923

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310377334.XA Pending CN116278618A (en) 2023-04-10 2023-04-10 Sealing device for automobile air conditioner box and firewall and automobile comprising sealing device

Country Status (1)

Country Link
CN (1) CN116278618A (en)

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