Automobile defrosting air duct sensor fixing structure

Abstract

The utility model belongs to the field of automobile interiors, and particularly relates to an automobile defrosting air duct sensor fixing structure which comprises a sensor and a fixing structure, a horizontal clamping disc is arranged on the upper middle portion of the sensor, protruding blocks are arranged on the two opposite sides of the clamping disc, a disc is arranged in the middle of the clamping disc, one side of the section of each protruding block is provided with a stop face, and the other side of the section of each protruding block is provided with a clamping face. Limiting blocks are arranged on the two opposite sides, below the clamping disc, of the sensor, the middle of the fixing structure is provided with a hollowed-out part matched with the sensor, and the front face of the fixing structure is provided with two protruding stopping structures matched with the protruding blocks and two protruding limiting structures matched with the protruding blocks. Two protruding guide structures matched with the limiting blocks are arranged on the back face of the fixing structure, after the sensor is installed, the protruding blocks are clamped between the stopping structures and the limiting structures, and the limiting blocks rotate to the positions below the guide structures. According to the utility model, the defrosting air duct sensor is fixed by utilizing low-cost investment, looseness and abnormal sound are avoided, and the consistency, stability and reliability in the mounting process are ensured.

Description

Technical Field

[0001] The utility model belongs to the field of automobile interior decoration, and in particular relates to a fixing structure of an automobile defrosting air duct sensor. Background Art

[0002] The defrost air duct sensor is fixed with a blow-molded air duct. Blow-molded air ducts have a common problem, that is, the characteristic structural wall thickness is not controlled, and the actual characteristic wall thickness is greatly different from the theoretical one, which results in many parts fixed to the blow-molded air duct requiring mounting brackets or additional felt and other parts to solve the problem of looseness and abnormal noise. However, this will increase production costs and the assembly is also more complicated. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides a vehicle defrost air duct sensor fixing structure, which uses low-cost investment to fix the defrost air duct sensor, ensures that there is no looseness or abnormal noise, and the installation process is consistent, stable and reliable.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a car defrost air duct sensor fixing structure, including a sensor and a fixing structure, a horizontal clamping disk is arranged in the upper and middle part of the sensor, protrusions are arranged on the opposite sides of the clamping disk, and a disc is arranged in the middle, one side of the cross-section on both sides of the protrusion is arranged as a stop surface, and the other side is arranged as a clamping surface, and limiting blocks are arranged on the opposite sides below the clamping disk on the sensor, a hollow part matched with the sensor is opened in the middle of the fixing structure, two raised stop structures matched with the protrusion and two raised limiting structures are arranged on the front side of the fixing structure, and two raised guide structures matched with the limit blocks are arranged on the back side of the fixing structure. After the sensor is installed, the protrusion is clamped between the stop structure and the limit structure, and the limit block rotates to under the guide structure.

[0005] Furthermore, the clamping plate and the hollow portion are both in the shape of candies.

[0006] Furthermore, two opposite outwardly convex square holes are arranged on the hollow part, the square holes are located inside the stop structure, the width of the square holes is greater than the width of the limit block, and the radial dimension of the disc part on the clamping disk is greater than the dimension between the two square holes of the hollow part.

[0007] Furthermore, two stop structures and two limiting structures are arranged at intervals on the four corners of the fixed structure, and the limiting structure is provided with an inclined plane 1, which starts from the surface of the fixed structure and extends upward in a clockwise direction.

[0008] Furthermore, the limiting block is located below the clamping surface, the guiding structure is located between the inclined plane 1 from the stop structure to the limiting structure, and the guiding structure is provided with an inclined plane 2 which is inclined downward in a clockwise direction.

[0009] Furthermore, the dimension between the two protrusions on the sensor is consistent with the dimension between the two square holes.

[0010] Compared with the prior art, the beneficial effects of the utility model are: 1. The defrost duct sensor fixing structure of the utility model adopts a raised stop structure, a limiting structure and a guide structure to limit and fix the sensor on the defrost duct sensor fixing structure, ensuring that there is no loosening or abnormal noise, and the installation process is consistent, stable and reliable; 2. The defrost duct fixing structure of the utility model is simple and can be easily called, and is suitable for most models with defrost duct sensors; 3. The defrost duct fixing structure of the utility model has low assembly requirements, is simple for workers to assemble, and is easy to ensure assembly stability, which can effectively avoid the risk source of abnormal noise in the NVH test of the main vehicle manufacturer; 4. The defrost duct fixing structure of the utility model can meet two configuration requirements, defrost duct with sensor and defrost duct without sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the fixed structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the front action area of ​​the utility model;

[0014] Figure 4 This is a schematic diagram of the reverse action area of ​​the utility model;

[0015] Figure 5 It is a side view of the utility model;

[0016] Figure 6 for Figure 5 Sectional view at FF;

[0017] Figure 7 This is a schematic diagram of the assembly process of the utility model;

[0018] Figure 8 It is a schematic diagram of the defrosting air duct structure with the structure of the utility model;

[0019] Fig. 9 for Figure 8 Enlarged view of point A in the middle;

[0020] Fig.10 It is a schematic diagram of the defrost air duct structure without a sensor;

[0021] Fig.11 for Fig.10 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 The utility model provides the following technical solutions: a sensor fixing structure for a defrosting air duct of an automobile, comprising a sensor 1 and a fixing structure 2, wherein the fixing structure 2 is arranged on the wall of the defrosting air duct, the sensor 1 is mounted on the fixing structure 2, a horizontal clamping disk 9 is arranged in the middle and upper part of the sensor 1, convex blocks 10 are arranged on opposite sides of the clamping disk 9, a disc 13 is arranged in the middle, one side of the cross section of both sides of the convex block 10 is arranged as a stop surface 4, and the other side is arranged as a clamping surface 5, limiting blocks 8 are arranged on opposite sides below the clamping disk 9 on the sensor 1, a hollow portion 11 adapted to the sensor 1 is opened in the middle of the fixing structure 2, and two protruding stop structures 3 and two protruding limiting structures adapted to the protruding block 10 are arranged on the front of the fixing structure 2. 6. Two raised guide structures 7 matched with the limit block 8 are provided on the reverse side of the fixed structure 2. The sensor 1 is correspondingly placed in the hollow part 11 in the fixed structure 2, and then the sensor 1 can be installed by rotating clockwise. After the sensor 1 is installed, the protrusion 10 is clamped between the stop structure 3 and the limit structure 6, and the limit block 8 is rotated to the bottom of the guide structure 7. At this time, the stop surface 4 on the protrusion 10 is stopped by the stop structure 3, and the clamping surface 5 on the protrusion 10 is also connected and clamped with the limit structure 6 after rotating clockwise. The limit block 8 is also limited in the vertical direction by the guide structure 7. After the sensor 1 is installed, it is guaranteed that there is no looseness or abnormal sound. At the same time, during the installation process, it is equipped with a lock to avoid the phenomenon of inadequate assembly and ensure the stability of assembly. Among them, the function of the stop structure 3 is to prevent workers from tightening the sensor 1 too much during assembly, which may cause the sensor 1 to fail to be assembled to the corresponding position and lose the limit, resulting in the risk of loosening and making abnormal noises, thus playing a stopping role; the function of the limit structure 6 is to guide the limit structure 6 through the guide structure 7 during the tightening process of the sensor 1 to complete the assembly, prevent it from falling off when rotating counterclockwise, and play a limiting role.

[0024] Specifically, the clamping plate 9 and the hollow portion 11 are both in the shape of candies.

[0025] Specifically, two opposite convex square holes 12 are provided on the hollow portion 11, and the square holes 12 are located on the inner side of the stop structure 3. The width of the square hole 12 is greater than the width of the limit block 8. The size between the two protrusions 10 on the sensor 1 is consistent with the size between the two square holes 12 on the hollow portion 11. After the limit block 8 on the sensor 1 is aligned with the square hole 12, the lower part of the clamping disk 9 on the sensor 1 is passed through the hollow portion 11 on the fixed structure 2. The radial size of the disk 13 on the clamping disk 9 is greater than the size between the two square holes 12 in the hollow portion 11. In this way, after the sensor 1 is installed, the risk of air leakage in the defrost duct is avoided.

[0026] Specifically, the two stop structures 3 and the two limiting structures 6 are arranged at intervals on the four corners of the fixed structure 2. After being installed, the protrusion 10 on the clamping plate 9 is just clamped with the two stop structures 3 and the two limiting structures 6. The disk 13 on the clamping plate 9 is just located between the two stop structures 3 and the two limiting structures 6. An inclined surface 601 is provided on the limiting structure 6. The inclined surface 601 starts from the surface of the fixed structure 2 and extends upward in a clockwise direction, so that the protrusion 10 can smoothly rotate along the inclined surface 601 to pass the raised limiting structure 6 during the clockwise rotation.

[0027] Specifically, the limit block 8 is located below the locking surface 5, the guide structure 7 is located between the inclined surface 1 601 from the stop structure 3 to the limit structure 6, and the guide structure 7 is provided with an inclined surface 2 701, which is inclined downward in a clockwise direction. The limit block 8 rotates smoothly along the inclined surface 2 701 during the rotation process, and is finally located below the guide structure 7 after rotating into place. The guide structure 7 and the limit structure 6 cooperate to prevent the sensor from loosening and achieve fixation.

[0028] Specifically, Figure 8-11 The defrost air duct fixed structure 2 can realize two configurations. One is that the fixed structure 2 has a hollow portion 11 in the middle, which is suitable for a high-end configuration with a sensor 1; the other is that the fixed structure 2 is closed in the middle, which is suitable for a low-end configuration without a sensor 1.

[0029] The production and assembly process of this utility model is as follows: Figure 7-11 First, the defrost duct is blow-molded to form a groove 14 in the middle of the fixed structure 2 to facilitate the next punching process; then, the defrost duct is placed in the punching mold to punch out the hollow portion 11 of the fixed structure 2; finally, the sensor 1 is assembled into the fixed structure 2. During assembly, Figure 7 In step 1, first align the limit blocks 8 on both sides of the sensor 1 with the square holes 12 on the fixing structure 2, and pass the portion below the snap-on plate 9 on the sensor 1 through the hollow portion 11. At this time, the protrusion 10 is located between the inclined surface 601 from the stop structure 3 to the limit structure 6, and the snap-on surface 5 on the protrusion 10 is close to the stop structure 3, and the stop surface 4 on the protrusion is close to the limit structure 6. Then, as shown in FIG. Figure 7In steps 2 and 3, the sensor 1 is screwed clockwise, the protrusion 10 passes through the inclined surface 1 601 on the limiting structure 6, and the limiting block 8 passes through the inclined surface 2 701 on the guide structure 7; finally, as shown in FIG. Figure 7 In steps 4 and 5, the sensor 1 is screwed in the clockwise direction. The stop surface 4 on the sensor 1 forms a limit with the stop structure 3 on the fixed structure 2 to prevent the worker from tightening too much, causing the sensor 1 to be out of the effective position and causing the risk of loosening and abnormal noise. The sensor 1 clamping surface 5 and the limit structure 6 of the fixed structure 2 form an interlock to ensure that the position of the sensor 1 after assembly is within the effective range to prevent rotation and loosening, thereby completing the assembly and achieving no risk of loosening and abnormal noise after the sensor 1 is installed. The defrost duct fixed structure 2 only needs to be blown and punched, without adding other parts, achieving cost reduction and efficiency improvement, and improving product quality. It is suitable for most models with defrost duct sensor 1.

[0030] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle defrosting air duct sensor fixing structure, characterized in that: The sensor (1) comprises a sensor and a fixed structure (2). A horizontal clamping disk (9) is arranged in the upper middle part of the sensor (1). The clamping disk (9) is provided with protrusions (10) on opposite sides and a disk (13) in the middle. One side of the cross section of the two sides of the protrusion (10) is provided with a stop surface (4) and the other side is provided with a clamping surface (5). Limiting blocks (8) are arranged on opposite sides below the clamping disk (9) on the sensor (1). A hollow portion (11) matching the sensor (1) is provided in the middle of the fixed structure (2). Two protruding stop structures (3) matching the protrusion (10) and two protruding limiting structures (6) are arranged on the front side of the fixed structure (2). Two protruding guide structures (7) matching the limiting blocks (8) are arranged on the back side of the fixed structure (2). After the sensor (1) is installed, the protrusion (10) is clamped between the stop structure (3) and the limiting structure (6), and the limiting block (8) is rotated to the bottom of the guide structure (7).

2. The automobile defrosting air duct sensor fixing structure according to claim 1, characterized in that: The clamping disc (9) and the hollow portion (11) are both in the shape of candies.

3. The automobile defrosting air duct sensor fixing structure according to claim 2, characterized in that: The hollow portion (11) is provided with two opposite outwardly convex square holes (12), the square holes (12) are located inside the stop structure (3), the width of the square holes (12) is greater than the width of the limit block (8), and the radial dimension of the disc (13) on the clamping disc (9) is greater than the dimension between the two square holes (12) of the hollow portion (11).

4. The automobile defrosting air duct sensor fixing structure according to claim 3, characterized in that: The two stop structures (3) and the two limiting structures (6) are arranged at intervals on the four corners of the fixed structure (2); the limiting structure (6) is provided with an inclined surface 1 (601), and the inclined surface 1 (601) starts from the surface of the fixed structure (2) and extends upward in a clockwise direction.

5. The automobile defrosting air duct sensor fixing structure according to claim 4, characterized in that: The limit block (8) is located below and close to the engaging surface (5); the guide structure (7) is located between the first inclined surface (601) from the stop structure (3) to the limit structure (6); and the guide structure (7) is provided with a second inclined surface (701), which is inclined downward in a clockwise direction.

6. The automobile defrosting air duct sensor fixing structure according to claim 5, characterized in that: The size between the two protrusions (10) on the sensor (1) is consistent with the size between the two square holes (12).

Images