Honeycomb plate with PP (polypropylene) core for automotive trim

Abstract

The invention discloses a PP (polypropylene) core honeycomb plate for automotive trim, which comprises a honeycomb partition plate, an upper base plate and a lower base plate, a honeycomb groove is arranged on the honeycomb partition plate, a ventilation flow channel is arranged in the side wall of the honeycomb partition plate, a flow guide block is arranged in the honeycomb groove, and a filter element and a self-cleaning piston are arranged in the flow guide block. The outer end face of the side wall of the honeycomb partition plate is provided with an air core communicated with the ventilation flow channel, a first exhaust hole is formed between the ventilation flow channel and the honeycomb groove, the side wall of the flow guide block is provided with a flow guide hole communicated with the upper end face of the flow guide block, a positioning groove is formed in the center of the flow guide block, and an air suction hole is formed between the side wall of the positioning groove and the flow guide hole. And the filter element and the self-cleaning piston are mounted in the positioning groove. The air-conditioning system has the advantages that the air-conditioning airflow can be guided to improve the riding comfort, and the problems that in the prior art, when an automobile is started, the refrigerating and heating efficiency is low, peculiar smell in the automobile is heavy, and the riding comfort of passengers is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of PP boards, in particular to a PP core honeycomb board for automobile interior decoration. Background Art

[0002] PP core honeycomb panels have a high strength-to-weight ratio, which can effectively reduce the weight of the vehicle body, help improve fuel efficiency or increase the range of electric vehicles. Its honeycomb structure can effectively absorb sound and heat, and mainly plays a role in heat insulation and sound insulation, and its function is relatively single.

[0003] Traditional automotive air conditioning systems generally have the problem of uneven airflow distribution, which leads to slow temperature adjustment in the car, especially in extreme weather conditions, and it takes a long time to reach the ideal comfortable temperature. In addition, the interior space of the car is relatively closed, and the air circulation is not smooth, which easily accumulates harmful gases and microorganisms, posing a potential threat to the health of passengers.

[0004] Existing air-conditioning systems are often unable to evenly distribute hot and cold air throughout the vehicle compartment because the airflow is concentrated in a specific area. Especially at long distances, the temperature regulation effect is significantly reduced. In addition, harmful gases such as formaldehyde are easily accumulated in vehicles after being exposed to the sun, and internal plastic products will produce odors, affecting riding comfort. Therefore, a PP core honeycomb panel for automotive interiors is needed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a PP core honeycomb panel for automobile interior, which has the advantage of being able to guide air conditioning airflow to improve riding comfort, and solves the problems in the prior art of low cooling and heating efficiency when the car is started and heavy odor in the car, which affects the riding comfort of passengers.

[0006] To achieve the above object, the present invention provides the following technical solution: a PP core honeycomb panel for automobile interior, comprising a honeycomb partition, an upper base plate and a lower base plate, the honeycomb partition is provided with a honeycomb groove, a ventilation channel is provided in the side wall of the honeycomb partition, a guide block is provided in the honeycomb groove, and a filter element and a self-cleaning piston are provided in the guide block; The outer end surface of the side wall of the honeycomb partition is provided with an air core that is connected to the ventilation channel, and a first exhaust hole is provided between the ventilation channel and the honeycomb groove; The side wall of the guide block is provided with a guide hole penetrating the upper end surface thereof, the center of the guide block is provided with a positioning groove, an air suction hole is provided between the side wall of the positioning groove and the guide hole, and the filter element and the self-cleaning piston are installed in the positioning groove; The upper end surface of the upper substrate is provided with a second exhaust hole and a first air inlet hole, and the self-cleaning piston is provided with a dredging column corresponding to the first air inlet hole.

[0007] As a preferred PP core honeycomb panel for automobile interior decoration of the present invention, the guide hole is an L-shaped through hole, a contraction section is provided on the guide hole, the air intake hole is connected through the contraction section, and the filter element is a mesh structure.

[0008] As a preferred PP core honeycomb panel for automobile interior of the present invention, the upper end surface of the lower substrate and the lower end surface of the upper substrate are provided with sealing protrusions corresponding to the positions of the honeycomb grooves, and the sealing protrusions are inserted into the honeycomb grooves and are interference-connected with the honeycomb partitions.

[0009] As a preferred PP core honeycomb panel for automobile interior decoration of the present invention, a limiting plate is arranged in the positioning groove, and a guide hole opposite to the position of the dredging column is arranged on the limiting plate, and the dredging column passes through the guide hole and is slidably connected with the limiting plate, and a spring is arranged on the upper end of the self-cleaning piston, and the self-cleaning piston is elastically connected to the limiting plate through the spring.

[0010] As a preferred PP core honeycomb panel for automobile interior of the present invention, the side wall of the dredging column is provided with a second air inlet hole and a pressure relief hole communicating therewith, the second air inlet hole is located at the top of the dredging column, and the distance between the second air inlet hole and the pressure relief hole is greater than the thickness of the upper substrate.

[0011] As a preferred embodiment of the PP core honeycomb panel for automobile interior decoration of the present invention, the pressure relief hole is an inclined upward structure, and the angle between the axis of the pressure relief hole and the horizontal plane is thirty degrees.

[0012] As a preferred embodiment of the PP core honeycomb panel for automobile interior decoration of the present invention, the surface of the guide block is provided with a first flange and a second flange, and a refrigerant cavity is formed between the first flange and the second flange.

[0013] As a preferred embodiment of the PP core honeycomb panel for automobile interior decoration of the present invention, the second exhaust holes are a plurality of small holes in a circular array, and the diameter of the second exhaust holes is 0.5-1.5 mm.

[0014] As a preferred embodiment of the PP core honeycomb board for automobile interior decoration of the present invention, the filter element is provided with activated carbon particles. As a preferred embodiment of the PP core honeycomb panel for automobile interior decoration of the present invention, the outer ends of the upper base plate and the lower base plate are provided with interference connection fixed frames, and the upper end surface of the upper base plate is flush with the upper end surface of the fixed frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets ventilation airflow channels in the honeycomb partitions and uses an air pump to evenly distribute the hot and cold air in the air-conditioning duct, thereby greatly improving the coverage of the air-conditioning airflow. This not only speeds up the temperature adjustment speed in the car, but also can achieve rapid cooling in summer and rapid heating in winter more efficiently, shortening the waiting time and improving the riding experience. The microporous design avoids strong airflow blowing directly to the passengers, effectively preventing problems such as dry skin and discomfort caused by strong wind blowing directly, especially during long-term driving, providing passengers with a more comfortable environment and reducing travel fatigue.

[0016] 2. The present invention arranges air intake holes and filter elements in the guide block, utilizes the negative pressure effect generated by the airflow, actively inhales the outside air and purifies it through the filter element, effectively removes pollutants such as particulate matter, bacteria, and viruses in the air, greatly improves the air quality in the car, and creates a healthier and fresher riding environment for passengers. The activated carbon particles contained in the filter element can absorb odors in the air, whether it is the smell of a new car or the musty smell caused by long-term closure, which can be effectively removed, keeping the air in the car lastingly fresh, and further improving the riding comfort and pleasure.

[0017] 3. The present invention arranges an elastically connected self-cleaning piston in the positioning groove. When the first air inlet is blocked, the negative pressure in the positioning groove increases, so that the self-cleaning piston moves upward under the action of air pressure, thereby pushing out the impurities blocked in the first air inlet, and realizing self-cleaning of the equipment. This design greatly simplifies the maintenance process of the equipment, reduces the frequency and difficulty of manual cleaning, reduces maintenance costs, and ensures the long-term stable operation of the system. It not only solves the blockage problem, but more importantly, it can preventively reduce maintenance needs, avoid system failures caused by air inlet blockage, extend the service life of the equipment, and ensure the continuous and efficient operation of the air-conditioning system and the air purification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 An exploded view of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 A top view of the present invention; Figure 4 For the present invention Figure 3 Middle AA section; Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle; Figure 6 For the present invention Figure 5 Enlarged view of point C in the middle; Figure 7 It is a schematic diagram of the cross-sectional structure of the guide block of the present invention; Figure 8 It is an exploded view of the guide block, filter element and self-cleaning piston of the present invention; Fig. 9 It is a schematic diagram of the honeycomb partition structure of the present invention; Fig.10 It is a schematic diagram of the upper substrate structure of the present invention.

[0019] In the figure: 1. honeycomb partition; 101. ventilation flow channel; 102. first exhaust hole; 103. air core; 104. honeycomb groove; 2. upper substrate; 201. second exhaust hole; 202. first air inlet hole; 203. sealing protrusion; 3. lower substrate; 4. guide block; 401. guide hole; 4011. contraction section; 402. air intake hole; 403. positioning groove; 404. limit plate; 4041. guide hole; 405. self-cleaning piston; 4051. dredging column; 4052. second air inlet hole; 4053. pressure relief hole; 406. spring; 407. filter element; 408. first flange; 409. second flange; 5. fixed frame. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 10 A PP core honeycomb panel for automobile interior decoration, comprising a honeycomb partition 1, an upper substrate 2 and a lower substrate 3, the honeycomb partition 1 is provided with a honeycomb groove 104, a ventilation channel 101 is provided in the side wall of the honeycomb partition 1, a guide block 4 is provided in the honeycomb groove 104, and a filter element 407 and a self-cleaning piston 405 are provided in the guide block 4; The outer end surface of the side wall of the honeycomb partition 1 is provided with an air core 103 which is connected with the ventilation channel 101, and a first exhaust hole 102 is provided between the ventilation channel 101 and the honeycomb groove 104; The side wall of the guide block 4 is provided with a guide hole 401 penetrating with the upper end surface thereof, the center of the guide block 4 is provided with a positioning groove 403, an air suction hole 402 is provided between the side wall of the positioning groove 403 and the guide hole 401, and a filter element 407 and a self-cleaning piston 405 are installed in the positioning groove 403; The upper end surface of the upper substrate 2 is provided with a second exhaust hole 201 and a first air inlet hole 202 , and the self-cleaning piston 405 is provided with a dredging column 4051 corresponding to the first air inlet hole 202 .

[0021] Furthermore, the guide hole 401 is an L-shaped through hole, a contraction section 4011 is provided on the guide hole 401, the air intake hole 402 is connected to the contraction section 4011, and the filter element 407 is a mesh structure.

[0022] When the air core 103 is connected to the air conditioning pipeline of the automobile, the air flows from the air core 103 into the ventilation flow channel 101, passes through the first exhaust hole 102 and enters the guide hole 401. When passing through the contraction section 4011 of the guide hole 401, the diameter decreases and the flow rate increases, thereby forming a negative pressure at the air intake hole 402, thereby sucking the external air into the positioning groove 403 from the first air intake hole 202, and being discharged after being adsorbed and purified by the filter element 407.

[0023] Furthermore, the upper end surface of the lower substrate 3 and the lower end surface of the upper substrate 2 are provided with sealing protrusions 203 corresponding to the positions of the honeycomb grooves 104 , and the sealing protrusions 203 are inserted into the honeycomb grooves 104 and are interference-connected with the honeycomb partitions 1 .

[0024] By cooperating with the sealing protrusion 203 and the honeycomb groove 104, the upper substrate 2, the honeycomb partition 1 and the lower substrate 3 are ensured to be precisely aligned, so that the guide hole 401 can be aligned with the exhaust hole, and the air intake hole 402 can be aligned with the positioning groove 403, thereby avoiding the misalignment of the second air inlet hole 4052 or the air intake hole 402, and improving the sealing of the positioning groove 403, thereby improving the air intake effect of the air intake hole 402.

[0025] Furthermore, a limiting plate 404 is provided in the positioning groove 403, and a guide hole 4041 is provided on the limiting plate 404 which is opposite to the position of the clearing column 4051. The clearing column 4051 passes through the guide hole 4041 and is slidably connected with the limiting plate 404. A spring 406 is provided at the upper end of the self-cleaning piston 405, and the self-cleaning piston 405 and the limiting plate 404 are elastically connected through the spring 406.

[0026] The self-cleaning piston 405 is maintained at the bottom of the positioning groove 403 under the resetting action of the spring 406. When the first air inlet hole 202 is blocked, the negative pressure above the self-cleaning piston 405 continues to increase, so that the self-cleaning piston 405 squeezes the spring 406 to move upward, and the unblocking column 4051 is inserted into the first air inlet hole 202 to unblock the first air inlet hole 202, thereby realizing self-cleaning of the pipeline.

[0027] Furthermore, the side wall of the dredging column 4051 is provided with a second air inlet hole 4052 and a pressure relief hole 4053 communicating therewith. The second air inlet hole 4052 is located at the top of the dredging column 4051 , and the distance between the second air inlet hole 4052 and the pressure relief hole 4053 is greater than the thickness of the upper substrate 2 .

[0028] When the clearing column 4051 pushes out the obstruction in the first air inlet hole 202, the second air inlet hole 4052 passes over the upper end surface of the upper substrate 2, allowing air to pass through the second air inlet hole 4052 and the pressure relief hole 4053 into the positioning groove 403, so that the air pressure in the positioning groove 403 is balanced with the outside, so that the self-cleaning piston 405 can rebound.

[0029] Furthermore, the pressure relief hole 4053 is an inclined upward structure, and the angle between the axis of the pressure relief hole 4053 and the horizontal plane is thirty degrees.

[0030] When the pressure relief hole 4053 exhausts air, it sprays upward, and the self-cleaning piston 405 will generate a downward thrust under the action of the airflow, which, together with the elastic force of the spring 406, can overcome the resistance caused by the negative pressure at the moment of self-cleaning piston 405 resetting under the action of inertia.

[0031] Furthermore, a first flange 408 and a second flange 409 are provided on the surface of the guide block 4 , and a refrigerant cavity is formed between the first flange 408 and the second flange 409 .

[0032] After passing through the guide hole 401, the cold air from the air conditioner enters the refrigerant cavity, and is then transmitted to each second exhaust hole 201 through the refrigerant cavity, thereby improving the uniformity of the exhaust and maintaining a certain gap between the guide block 4 and the upper substrate 2, thereby avoiding drilling errors during production, resulting in the air holes not being completely aligned and losing the cooling and purification effects.

[0033] Furthermore, the second exhaust holes 201 are a plurality of small holes in a circular array, and the diameter of the second exhaust holes 201 is 0.5-1.5 mm.

[0034] The micro-hole design of the circular array allows the cold air to cover a wider area, which can cool down the interior of the vehicle more quickly. The micro-hole design effectively reduces the probability of dust entering through the second exhaust hole 201.

[0035] Furthermore, activated carbon particles are disposed in the filter element 407 .

[0036] The activated carbon filter element 407 can absorb odors in the air, thereby achieving the purpose of purifying the air. The activated carbon particles have good adsorption effect and low filtration resistance, and will not affect the stability of the equipment.

[0037] Furthermore, the outer ends of the upper substrate 2 and the lower substrate 3 are provided with interference fit fixed frames 5 , and the upper end surface of the upper substrate 2 is flush with the upper end surface of the fixed frame 5 .

[0038] The overall structural strength of the plate is ensured by fixing the frame 5, so as to avoid the plate becoming loose and deformed after installation, which would affect the quality and service life of the plate.

[0039] When the plate is in use, first, the decorative plate is installed at a predetermined position of the car, usually the top of the rear seat or the inside of the door, and the air core 103 is connected to the air-conditioning duct through an air pump and a hose. The air pump pumps the air in the air-conditioning duct into the ventilation flow channel 101, enters the guide hole 401 through the first exhaust hole 102, and is discharged from the second exhaust hole 201. When flowing through the contraction section 4011 of the ventilation pipe, the suction hole 402 generates negative pressure, and the external air is sucked into the first air inlet hole 202. After being purified by the filter element 407, it is merged into the guide hole 401 and then discharged to purify the air. When the first air inlet hole 202 is blocked, the negative pressure in the positioning groove 403 increases, so that the self-cleaning piston 405 moves upward under the action of air pressure, thereby pushing out the impurities blocked in the first air inlet hole 202, thereby realizing self-cleaning of the equipment.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PP core honeycomb panel for automobile interior, comprising a honeycomb partition (1), an upper substrate (2) and a lower substrate (3), wherein the honeycomb partition (1) is provided with a honeycomb groove (104), characterized in that: A ventilation channel (101) is provided in the side wall of the honeycomb partition (1), a guide block (4) is provided in the honeycomb groove (104), and a filter element (407) and a self-cleaning piston (405) are provided in the guide block (4); An air core (103) that is in communication with the ventilation channel (101) is provided on the outer end surface of the side wall of the honeycomb partition plate (1), and a first exhaust hole (102) is provided between the ventilation channel (101) and the honeycomb groove (104); The side wall of the guide block (4) is provided with a guide hole (401) penetrating the upper end surface thereof, the center of the guide block (4) is provided with a positioning groove (403), an air suction hole (402) is provided between the side wall of the positioning groove (403) and the guide hole (401), and the filter element (407) and the self-cleaning piston (405) are installed in the positioning groove (403); The upper end surface of the upper base plate (2) is provided with a second exhaust hole (201) and a first air inlet hole (202), and the self-cleaning piston (405) is provided with a dredging column (4051) corresponding to the first air inlet hole (202).

2. A PP core honeycomb panel for automobile interior decoration as claimed in claim 1, characterized in that: The guide hole (401) is an L-shaped through hole, a contraction section (4011) is provided on the guide hole (401), the air intake hole (402) is connected to the contraction section (4011), and the filter element (407) is a mesh structure.

3. A PP core honeycomb panel for automobile interior decoration as claimed in claim 1, characterized in that: The upper end surface of the lower substrate (3) and the lower end surface of the upper substrate (2) are provided with sealing protrusions (203) corresponding to the positions of the honeycomb grooves (104); the sealing protrusions (203) are inserted into the honeycomb grooves (104) and are interference-connected with the honeycomb partitions (1).

4. A PP core honeycomb panel for automobile interior decoration as claimed in claim 1, characterized in that: A limit plate (404) is arranged in the positioning groove (403); a guide hole (4041) is arranged on the limit plate (404) and is opposite to the position of the dredging column (4051); the dredging column (4051) passes through the guide hole (4041) and is slidably connected to the limit plate (404); a spring (406) is arranged at the upper end of the self-cleaning piston (405); and the self-cleaning piston (405) and the limit plate (404) are elastically connected via the spring (406).

5. A PP core honeycomb panel for automobile interior decoration as claimed in claim 1, characterized in that: The side wall of the dredging column (4051) is provided with a second air inlet hole (4052) and a pressure relief hole (4053) communicating therewith; the second air inlet hole (4052) is located at the top of the dredging column (4051); and the distance between the second air inlet hole (4052) and the pressure relief hole (4053) is greater than the thickness of the upper substrate (2).

6. A PP core honeycomb panel for automobile interior decoration as claimed in claim 5, characterized in that: The pressure relief hole (4053) is an inclined upward structure, and the angle between the axis of the pressure relief hole (4053) and the horizontal plane is thirty degrees.

7. A PP core honeycomb panel for automobile interior decoration as claimed in claim 1, characterized in that: A first flange (408) and a second flange (409) are provided on the surface of the guide block (4), and a refrigerant cavity is formed between the first flange (408) and the second flange (409).

8. The PP core honeycomb panel for automobile interior decoration according to claim 1, characterized in that: The second exhaust holes (201) are a plurality of small holes in a circumferential array, and the diameter of the second exhaust holes (201) is 0.5-1.5 mm.

9. A PP core honeycomb panel for automobile interior decoration as claimed in claim 1, characterized in that: Activated carbon particles are arranged in the filter element (407).

10. The PP core honeycomb panel for automobile interior decoration according to claim 1, characterized in that: The outer ends of the upper base plate (2) and the lower base plate (3) are provided with interference-connected fixed frames (5), and the upper end surface of the upper base plate (2) is flush with the upper end surface of the fixed frame (5).

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