Roof window main frame for passenger car

Abstract

The utility model belongs to the technical field of automobile ventilation devices, and particularly discloses a roof window main frame for a passenger car, which comprises a main beam section and a reinforcing rib, and two ends of the reinforcing rib are fixedly connected with the main beam section respectively. A top cover sealing groove and an automobile body sealing groove are formed in the fixed connection position of the main beam section and the reinforcing rib, and a top cover sealing strip and an automobile body sealing strip are arranged in the top cover sealing groove and the automobile body sealing groove respectively. According to the utility model, the extruded aluminum alloy is used as a main material, the mounting grooves for the sealing strips are additionally designed on the main frame, and the two sealing strips are integrated on the main frame, so that the sealing assembly efficiency and quality of the main frame, the top cover and the automobile body are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automotive ventilation devices, and particularly relates to a main frame of a roof vent for buses. Background Art

[0002] The roof vent for vehicles is used for ventilation and air exchange of the vehicle. The air inside the vehicle is discharged outside through the roof vent, thereby achieving the effect of air exchange.

[0003] Currently, the main frames of roof vents on buses are mostly made of cold plate materials. The main frame made of this kind of cold plate material has high strength, but there are also problems such as complex processing. Considering cost control and production processes, the general structure of this kind of main frame is simple.

[0004] When installing the main frame of the roof vent, it needs to be sealed with the vehicle body and the roof vent cover respectively to prevent water leakage and air leakage. Since the main frame made of cold plate material has a simple structure, butyl sealant is mainly used for filling when the main frame made of cold plate material is sealed with the vehicle body. If the filling is not in place, additional silicone sealant is required around the main frame made of cold plate material. This leads to problems such as long operation time, low sealing efficiency, and easy seal failure in the sealing between the main frame of the roof vent and the vehicle body. When the main frame made of cold plate material is sealed with the roof vent cover, the sealing strip is generally glued to the main frame. This installation method of the sealing strip has problems such as easy aging and easy falling off of the bonding. Summary of the Invention

[0005] In view of the above-mentioned technical problems of low sealing efficiency and easy aging of the sealing method existing in the main frame of the roof vent for vehicles, the utility model uses extruded aluminum alloy as the main material, designs and adds an installation groove for the sealing strip on the main frame, and integrates two kinds of sealing strips on the main frame, improving the efficiency and quality of the sealing assembly between the main frame and the cover and the vehicle body.

[0006] The utility model adopts the following technical solutions:

[0007] A main frame of a roof vent for buses, the main frame includes main beam segments and reinforcing ribs, and both ends of the reinforcing ribs are fixedly connected to the main beam segments respectively; at the connection between the main beam segments and the reinforcing ribs, there are a cover seal groove and a body seal groove, and a cover sealing strip and a body sealing strip are respectively arranged in the cover seal groove and the body seal groove.

[0008] Further, the main frame is extrusion-molded, the material of the main frame is aluminum alloy, and the end face thickness of the main frame is 1.5 mm ± 0.1 mm.

[0009] Further, both the cover seal groove and the body seal groove include a seal cavity, and a limiting beam is arranged at the opening of the seal cavity.

[0010] Further, the roof seal strip includes a roof foaming layer and a roof mounting layer. The material of the roof foaming layer is foamed ethylene propylene diene monomer (EPDM), and the material of the roof mounting layer is EPDM. The Shore hardness of the EPDM is 65° to 70°.

[0011] Further, the roof mounting layer includes a semi-circular seal cover part and a rectangular seal neck part. The seal cover part is placed in the seal cavity of the roof seal groove, and the seal neck part is placed at the limiting beam of the roof seal groove.

[0012] Further, the body seal strip includes a body foaming layer and a body mounting layer. The material of the body foaming layer is foamed EPDM, and the material of the body mounting layer is EPDM. The Shore hardness of the EPDM is 65° to 70°.

[0013] Further, the body mounting layer is placed in the seal cavity of the body seal groove. The body mounting layer is provided with a mounting groove for placing the limiting beam of the body seal groove.

[0014] Advantages of the present utility model compared with the prior art:

[0015] 1. In combination with the problems existing in the existing main frame of the top wind window, the present utility model first makes an innovative attempt on the main frame material. By using aluminum alloy material that can be extruded in one step, the main frame structure can be processed and designed during production and manufacturing. By adding a roof seal groove and a body seal groove, the seal strip can be integrated on the main frame, greatly improving the efficiency and quality of the seal assembly between the main frame and the roof and the body.

[0016] 2. The present utility model uses aluminum alloy material to make the main frame of the top wind window. Compared with cold plate material, aluminum alloy is lighter in weight, easier to process, and has a simple production and processing process. It can achieve customized production. Only by developing one kind of aluminum profile can main frames of various specifications and sizes be made, and it can be adapted to the top wind windows of various vehicle models. Description of the Drawings

[0017] Figure 1 is a sectional view of a main frame of a top wind window for a bus according to the present utility model;

[0018] Figure 2 is a sectional view of the main frame in a main frame of a top wind window for a bus according to the present utility model;

[0019] Figure 3 is a sectional view of the roof seal strip in a main frame of a top wind window for a bus according to the present utility model;

[0020] Figure 4 is a sectional view of the body seal strip in a main frame of a top wind window for a bus according to the present utility model.

[0021] Description of reference numerals: main frame 1, top cover sealing strip 2, body sealing strip 3, main beam section 110, reinforcing rib 120, top cover sealing groove 130, body sealing groove 140, top cover foaming layer 210, top cover mounting layer 220, body foaming layer 310, body mounting layer 320, sealing cover part 2210, sealing neck 2220, mounting groove 3210. Detailed implementation mode

[0022] The following further describes the main frame of the top wind window of the present utility model in conjunction with the drawings and specific implementation methods.

[0023] As Figures 1-4 shown, the present utility model discloses a main frame of a top wind window for a passenger car, wherein the main frame 1 includes a main beam section 110 and a reinforcing rib 120. The reinforcing rib 120 is used to strengthen the main beam section 110 to ensure that the main beam section 110 does not deform after being bent. Both ends of the reinforcing rib 120 are respectively connected to the main beam section 110, and a cavity is formed between the reinforcing rib 120 and the main beam section 110.

[0024] A top cover sealing groove 130 and a body sealing groove 140 are provided at the joint where the main beam section 110 is fixedly connected to the reinforcing rib 120. A top cover sealing strip 2 and a body sealing strip 3 are respectively provided in the top cover sealing groove 130 and the body sealing groove 140. Such a setting can integrate the top cover sealing strip 2 and the body sealing strip 3 on the main frame, ensuring the sealing assembly quality and efficiency of the main frame with the top cover and the body of the top wind window.

[0025] Both the top cover sealing groove 130 and the body sealing groove 140 include a sealing cavity, and a limiting beam is provided at the opening of the sealing cavity. The sealing cavity is used to place the sealing strip, and the limiting beam is used to hold the sealing strip to prevent it from falling off.

[0026] In the present utility model, the top cover sealing strip 2 includes a top cover foaming layer 210 and a top cover mounting layer 220. The material of the top cover foaming layer 220 is foamed ethylene propylene diene monomer (EPDM), which adopts closed-cell foaming and has a rebound rate greater than 80%. The material of the top cover mounting layer 220 is EPDM. The body sealing strip 3 includes a body foaming layer 310 and a body mounting layer 320. The material of the body foaming layer 310 is foamed EPDM, which adopts closed-cell foaming and has a rebound rate greater than 80%. The material of the body mounting layer 320 is EPDM. The Shore hardness of the EPDM used for the top cover mounting layer 220 and the body mounting layer 320 is 65° - 70°.

[0027] The top cover mounting layer 220 includes a semi-circular sealing cover part 2210 and a rectangular sealing neck 2220. The sealing cover part 2210 is placed in the sealing cavity of the top cover sealing groove 130, and the sealing neck 2220 is placed at the limiting beam of the top cover sealing groove 130.

[0028] The vehicle body mounting layer 320 is placed in the sealing cavity of the vehicle body sealing groove 140. The vehicle body mounting layer 320 is provided with a mounting groove 3210 for placing the limiting beam of the vehicle body sealing groove 140.

[0029] In the present utility model, the main frame 1 is made of aluminum alloy material. After being extruded and formed, it is bent by a bending device into a semi-finished main frame, and then made into the main frame 1 through laser welding. The cross-sectional thickness of the main frame 1 is 1.5 mm ± 0.1 mm.

[0030] In summary, the main frame of the headlight window provided by the present utility model utilizes aluminum alloy material that can be extruded and formed at one time. In the production and manufacturing process, the structure of the main frame 1 can be processed and designed. By adding a roof sealing groove and a vehicle body sealing groove, the sealing strip can be integrated on the main frame, greatly improving the efficiency and quality of the sealing assembly of the main frame with the roof and the vehicle body.

[0031] The above are only embodiments of the present utility model. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present utility model, several modifications and improvements can be made, which should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicability of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A main frame of a roof window for a passenger car, characterized in that: The main frame (1) comprises a main beam section (110) and a reinforcing rib (120), wherein both ends of the reinforcing rib (120) are respectively fixedly connected to the main beam section (110); a top cover sealing groove (130) and a body sealing groove (140) are provided at the fixed connection between the main beam section (110) and the reinforcing rib (120), and a top cover sealing strip (2) and a body sealing strip (3) are respectively provided in the top cover sealing groove (130) and the body sealing groove (140).

2. According to the main frame of the roof window for a passenger car as described in claim 1, it is characterized in that: The main frame (1) is formed by extrusion, the material of the main frame (1) is aluminum alloy, and the thickness of the end surface of the main frame (1) is 1.5 mm±0.1 mm.

3. A main frame of a roof window for a passenger car according to claim 2, characterized in that: The top cover sealing groove (130) and the body sealing groove (140) both comprise a sealing cavity, and a limiting beam is provided at the opening of the sealing cavity.

4. A main frame of a roof window for a passenger car according to claim 3, characterized in that: The top cover sealing strip (2) comprises a top cover foaming layer (210) and a top cover mounting layer (220), the top cover foaming layer (210) being made of foamed EPDM rubber, the top cover mounting layer (220) being made of EPDM rubber, and the EPDM rubber having a Shore hardness of 65° to 70°.

5. A main frame of a roof window for a passenger car according to claim 4, characterized in that: The top cover mounting layer (220) comprises a semicircular sealing cover portion (2210) and a rectangular sealing neck portion (2220); the sealing cover portion (2210) is placed in the sealing cavity of the top cover sealing groove (130); and the sealing neck portion (2220) is placed at the limiting beam of the top cover sealing groove (130).

6. The main frame of the roof window for a passenger car according to claim 5, characterized in that: The vehicle body sealing strip (3) comprises a vehicle body foaming layer (310) and a vehicle body mounting layer (320); the material of the vehicle body foaming layer (310) is foamed EPDM rubber; the material of the vehicle body mounting layer (320) is EPDM rubber; and the Shore hardness of the EPDM rubber is 65° to 70°.

7. The main frame of the roof window for a passenger car according to claim 6, characterized in that: The vehicle body installation layer (320) is placed in the sealing cavity of the vehicle body sealing groove (140), and the vehicle body installation layer (320) is provided with a mounting groove (3210), and the mounting groove (3210) is used to place a limiting beam of the vehicle body sealing groove (140).

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