A defrosting air duct assembly of a new energy vehicle instrument panel

Abstract

The utility model relates to the technical field of automobile parts, concretely to a new energy automobile instrument board defrosting air duct subassembly, including instrument board, the one side of instrument board front end is provided with the steering wheel, the both sides symmetrical of instrument board rear end is provided with defrosting seal, the defrosting seal is connected with the apron through the hinge on, this new energy automobile instrument board defrosting air duct subassembly, through setting up elastic adsorption subassembly between defrosting air port and apron, the accommodation groove provides stable installation space for magnetic attraction piece and spring, when apron closes, magnetic attraction piece and the magnetic attraction sheet on apron produce strong adsorption, and spring is extruded simultaneously and deforms and produces sustained elastic thrust, forms initiative pressure effect, utilizes magnetic force to ensure initial adhesion accuracy, offsets the component micro deformation in long -term use through spring compensation force, eliminates gap hidden danger thoroughly, compared with single magnetic attraction structure, the sealing reliability improves significantly, effectively blocks dust, water vapor and invades the air duct inside.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a defrosting air duct assembly for a new energy vehicle dashboard. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source, or use conventional fuels but employ new power devices. Their core difference from traditional fuel vehicles lies in their energy conservation and environmental protection. They mainly include pure electric vehicles, plug-in hybrid electric vehicles, and fuel cell vehicles. These vehicles differ from traditional models in their structural design. The dashboard defrosting duct is an important component of their air conditioning system. This duct is usually integrated inside the dashboard, with one end connected to the air conditioning evaporator or heater core, and the other end leading to the air outlet below the windshield. It can directionally deliver hot or cold air generated by the air conditioning to the windshield, quickly eliminating frost and fog on the glass surface and ensuring clear driving visibility. This is one of the key details for ensuring driving safety in new energy vehicles.

[0003] A search revealed a Chinese patent (CN223030749U) disclosing a defrost vent structure for an automotive dashboard. The structure includes a dashboard body with two symmetrically arranged defrost vents at its front end. Each vent houses an air guide, with an air outlet at its center. Several air guide blades are installed inside the air outlet. An installation assembly is provided at the connection between the defrost vent and the air guide. This assembly, through the cooperation of a locking unit, a lock hole, and a movable groove, ensures a secure connection between the air guide and the defrost vent. By designing a moving block and a pull groove, users can easily control the locking block's movement, enabling quick installation and removal of the air guide. Because the air guide can be easily disassembled and installed, users can more easily clean and maintain it. This helps maintain unobstructed and clean airflow, further improving defrosting efficiency and in-vehicle air quality.

[0004] The aforementioned patent proposes that the cover plate and the fixing plate work together to prevent external dust, dirt and moisture from entering the air guide. However, in actual use, the magnetic plate surface is prone to adsorbing dust, lint and other impurities, which leads to a decrease in magnetic attraction and the cover plate and the fixing plate are not tightly attached, resulting in gaps and dust leakage. Therefore, we propose a defrosting air duct component for the dashboard of a new energy vehicle. Utility Model Content

[0005] The technical problem to be solved by this application is that the surface of the magnetic plate is prone to attracting dust, lint and other impurities, which leads to a decrease in magnetic attraction and poor adhesion between the cover plate and the fixing plate, resulting in gaps and dust leakage.

[0006] To address the aforementioned technical problems, this application provides a defrosting air duct assembly for a new energy vehicle dashboard, including a dashboard. A steering wheel is provided on one side of the front end of the dashboard, and defrosting seals are symmetrically arranged on both sides of the rear end of the dashboard. A cover plate is connected to the defrosting seal via a hinge, and an elastic adsorption assembly is provided between the defrosting seal and the cover plate. The elastic adsorption assembly is used to tightly close the defrosting seal and the cover plate.

[0007] In some embodiments, magnetic iron plates are provided on both sides of the cover plate.

[0008] In some embodiments, the elastic adsorption assembly includes a receiving groove formed on the defrost seal, the receiving groove being aligned with the magnetic iron sheet, a magnetic block being slidably installed inside the receiving groove, and a spring being provided inside the receiving groove, with both ends of the spring being connected to the receiving groove and the magnetic block, respectively.

[0009] In some embodiments, a sealing strip is provided on the cover plate, the sealing strip surrounding the cover plate.

[0010] In some embodiments, the defrost seal has a sealing groove, and when the cover is closed, the sealing strip is pressed into the interior of the sealing groove.

[0011] In some embodiments, the cover plate is provided with a magnetic strip.

[0012] In some embodiments, a magnetic groove is provided on the defrost seal, the magnetic groove is located on the lower side of the defrost seal surface, and the magnetic strip enters the interior of the magnetic groove when the cover is closed.

[0013] This utility model has at least the following beneficial effects: 1. In this utility model, an elastic adsorption component is set between the defrost vent and the cover plate. The receiving groove provides a stable installation space for the magnetic block and the spring. When the cover plate is closed, the magnetic block and the magnetic iron sheet on the cover plate generate a strong adsorption force. At the same time, the spring is compressed and deformed to generate a continuous elastic thrust, forming an active pressing effect. The magnetic force ensures the initial fitting accuracy, and the spring compensation force offsets the micro deformation of the components during long-term use, completely eliminating the hidden danger of gaps. Compared with a single magnetic structure, the sealing reliability is significantly improved, effectively preventing dust and moisture from entering the air duct.

[0014] 2. In this utility model, a sealing groove is opened at the defrost air vent, and a sealing strip with a shape, size, and position that perfectly matches the sealing strip is set at the corresponding position on the cover plate. When the cover plate is closed, the sealing strip is precisely embedded in the sealing groove and undergoes moderate deformation. The elasticity of the material fills any possible assembly tolerance gaps, and a seal is achieved through physical fitting. The flexible characteristics of the sealing strip block tiny gaps, and together with the elastic adsorption component, a double barrier is formed, which significantly improves the dustproof level. Long-term use can keep the inside of the air duct clean and reduce airflow reduction or odor problems caused by dust accumulation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a schematic diagram of the overall rear structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of the defrosting seal of this utility model; Figure 4 This is a side sectional view of the defrost sealing structure of this utility model; Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0016] In the diagram: 1. Instrument panel; 2. Steering wheel; 3. Defrost seal; 31. Sealing groove; 4. Cover plate; 41. Magnetic sheet; 42. Sealing strip; 5. Elastic adsorption assembly; 51. Receiving groove; 52. Magnetic block; 53. Spring; 6. Magnetic strip; 7. Magnetic groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: Please refer to Figures 1-5This utility model provides a technical solution: a defrosting air duct assembly for a new energy vehicle dashboard, including a dashboard 1, a steering wheel 2 is provided on one side of the front end of the dashboard 1, and defrosting seals 3 are symmetrically provided on both sides of the rear end of the dashboard 1. A cover plate 4 is connected to the defrosting seal 3 by a hinge. An elastic adsorption assembly 5 is provided between the defrosting seal 3 and the cover plate 4. The elastic adsorption assembly 5 is used to tightly close the defrosting seal 3 and the cover plate 4. Magnetic iron pieces 41 are provided on both sides of the cover plate 4. The elastic adsorption assembly 5 includes a receiving groove 51 opened on the defrosting seal 3. The position distribution of the receiving groove 51 is aligned with the magnetic iron pieces 41. A magnetic block 52 is slidably installed inside the receiving groove 51. A spring 53 is provided inside the receiving groove 51. The two ends of the spring 53 are respectively connected to the receiving groove 51 and the magnetic block 52.

[0019] The instrument panel 1 is an integral load-bearing structure. The steering wheel 2 is located on the front side of the instrument panel 1. Its steering shaft passes through the preset mounting hole of the instrument panel 1 and is fixedly connected to the internal bracket of the instrument panel 1 by bolts. After assembly, the steering wheel 2 and the instrument panel 1 remain relatively stationary and have no relative displacement. There are two defrost vents 3, which are symmetrically distributed on both sides of the rear end of the instrument panel 1 with the longitudinal central axis of the instrument panel 1 as the center of symmetry. The outer shell of the defrost vent 3 is fixed to the rear end frame of the instrument panel 1 by a combination of clips and screws. A through ventilation channel is formed inside the shell. One end of the channel is connected to the main air duct inside the instrument panel 1, and the other end faces the windshield of the vehicle to realize the directional delivery of defrost airflow. The cover plate 4 is a plate-shaped structure that is adapted to the shape of the defrost vent 3. It is connected to the defrost vent 3 by a hinge. The hinge is made of metal. One side of the hinge is fixed to the edge of the defrost vent 3 away from the central axis of the instrument panel 1 by spot welding. The other side of the hinge is fixed to the corresponding edge of the cover plate 4 by self-tapping screws. The hinge's rotating shaft is made of stainless steel to ensure that the cover plate 4 can rotate flexibly around the rotating shaft, corresponding to the fully closed and fully open states of the defrost vent 3 respectively. The elastic adsorption component 5 is assembled between the defrost vent 3 and the mating surface of the cover plate 4, providing continuous pressing force for the cover plate 4 and the defrost vent 3, so that the two are tightly mated. On the side surface of the cover plate 4 facing the defrost vent 3, magnetic iron sheets 41 are fixed at the center of the left and right edges. The magnetic iron sheets 41 are rectangular thin sheet structures, which are bonded to the pre-set groove of the cover plate 4 with epoxy adhesive. After bonding, the surface of the iron sheet is flush with the mating surface of the cover plate 4. The elastic adsorption component 5 consists of a receiving groove 51, a magnetic block 52, and a spring 53. The receiving groove 51 is a cylindrical groove, which is opened on the end face of the defrost vent 3 facing the cover plate 4. There are two of them, just like the magnetic iron pieces 41. The axis of each receiving groove 51 is precisely aligned with the geometric center of the corresponding magnetic iron piece 41. The magnetic block 52 is a cylindrical permanent magnet with a diameter that is clearance-fitted with the inner diameter of the receiving groove 51. After being embedded in the receiving groove 51, it can slide smoothly back and forth along the depth direction of the groove. The spring 53 is in a compressed state. One end of it is fixed to the center of the bottom end face of the receiving groove 51 by welding, and the other end is connected to the center of the end face of the magnetic block 52 away from the groove opening by welding. In its natural state, the spring 53 pushes the end face of the magnetic block 52 to be placed inside the receiving groove 51, close to the inside. When the cover plate 4 is closed, the magnetic block 52 and the magnetic iron piece 41 are attracted to each other, pulling the spring 53. At the same time, the spring 53 generates elastic pressure to achieve a tight fit.

[0020] Example 2: Based on Example 1, as follows Figures 1-5 As shown, a sealing strip 42 is provided on the cover plate 4, and the sealing strip 42 surrounds the cover plate 4. A sealing groove 31 is provided on the defrost seal 3. When the cover plate 4 is closed, the sealing strip 42 is pressed into the interior of the sealing groove 31.

[0021] On the side surface of the cover plate 4 facing the defrost vent 3, a sealing strip 42 is fixedly installed around the edge. The sealing strip 42 is an annular elastic structure and is fixed to the preset installation edge line of the cover plate 4 by adhesive. Its cross-sectional dimensions match the cavity dimensions of the sealing groove 31. When the cover plate 4 is in a fully closed state, the sealing strip 42 is precisely embedded in the sealing groove 31 and is squeezed and deformed to achieve a seal.

[0022] Example 3: Based on Example 1, such as Figures 1-5 As shown, a magnetic strip 6 is provided on the cover plate 4, and a magnetic groove 7 is provided on the defrost seal 3. The magnetic groove 7 is located on the lower side of the surface of the defrost seal 3. When the cover plate 4 is closed, the magnetic strip 6 enters the interior of the magnetic groove 7.

[0023] A magnetic strip 6 is fixedly installed on the lower side of the surface of the cover plate 4 facing the defrost vent 3 in the horizontal direction. The magnetic strip 6 is a long strip-shaped permanent magnet structure, the length of which matches the length of the lower edge of the cover plate 4 and is adhered to the cover plate 4. On the end face of the defrost vent 3 facing the cover plate 4, a magnetic groove 7 is opened corresponding to the position of the magnetic strip 6. The magnetic groove 7 is a long strip-shaped groove located on the lower side of the surface of the defrost vent 3 and in the inner area of ​​the sealing groove 31. The length, width and depth of the magnetic groove 7 are adapted to the length, width and thickness of the magnetic strip 6, respectively, and the bottom of the groove is a flat structure. When the cover plate 4 is pressed on the defrost seal 3, the magnetic strip 6 accurately enters the interior of the magnetic groove 7 and generates an adsorption force with the groove wall of the magnetic groove 7. Combined with the interlocking and pressing of the sealing strip 42 and the sealing groove 31, multiple tight fits are achieved.

[0024] Based on the above embodiments, the following is the complete working principle of the above embodiments: When in use, the cover plate 4 must first be opened to activate the defrosting function. The operator applies external force to overcome the magnetic attraction force of the elastic adsorption component 5 and the elastic pressure of the spring 53, so that the cover plate 4 rotates around the stainless steel rotating shaft of the metal hinge. At this time, the magnetic iron pieces 41 on both sides of the cover plate 4 separate from the magnetic blocks 52 in the receiving groove 51 of the defrosting air vent 3. Under the action of the reset thrust of the spring 53, the magnetic blocks 52 slide and reset along the depth direction of the receiving groove 51. After the cover plate 4 is fully opened, it stays in the corresponding position, and the ventilation channel of the defrosting air vent 3 is in an open state. Subsequently, the defrosting airflow delivered by the main air duct inside the instrument panel 1 enters the housing channel of the defrosting air outlet 3, and is directed to the windshield through the open air outlet to achieve defrosting / or defogging operations. When the defrosting function is not needed, rotate the cover plate 4 to fit it against the defrosting air vent 3: the magnetic strip 6 on the lower side of the cover plate 4 first gradually inserts itself into the slot of the magnetic groove 7 of the defrosting air vent 3, and at the same time, the magnetic iron pieces 41 on both sides of the cover plate 4 and the magnetic block 52 in the receiving groove 51 generate an attraction force, pulling the magnetic block 52 to slide along the receiving groove 51 and stretching the spring 53, and the spring 53 generates a reverse elastic pressure accordingly. As the cover plate 4 continues to close, the annular sealing strip 42 around it is precisely aligned with the sealing groove 31 of the defrost vent 3 and embedded in the groove cavity. Under the combined action of the pressure of the elastic adsorption component 5 and the adsorption force of the magnetic strip 6, the sealing strip 42 is squeezed and deformed, filling the gap of the sealing groove 31. Finally, the magnetic block 52 and the magnetic iron sheet 41 are tightly adsorbed, and the magnetic strip 6 is completely embedded in the magnetic groove 7. Together with the physical seal of the sealing strip 42, a multi-layered tight fit structure is formed to prevent dust and moisture from entering the air duct and complete the closing and sealing process.

Claims

1. A defrosting air duct assembly for a new energy vehicle dashboard, comprising a dashboard (1), characterized in that: A steering wheel (2) is provided on one side of the front end of the instrument panel (1), and defrost seals (3) are symmetrically provided on both sides of the rear end of the instrument panel (1). A cover plate (4) is connected to the defrost seal (3) by a hinge. An elastic adsorption component (5) is provided between the defrost seal (3) and the cover plate (4). The elastic adsorption component (5) is used to tightly close the defrost seal (3) and the cover plate (4).

2. The new energy vehicle dashboard defrosting air duct assembly according to claim 1, characterized in that: Magnetic plates (41) are provided on both sides of the cover plate (4).

3. The new energy vehicle dashboard defrosting air duct assembly according to claim 2, characterized in that: The elastic adsorption component (5) includes a receiving groove (51) opened on the defrost seal (3). The position distribution of the receiving groove (51) is aligned with the magnetic iron sheet (41). A magnetic block (52) is slidably installed inside the receiving groove (51). A spring (53) is provided inside the receiving groove (51). The two ends of the spring (53) are respectively connected to the receiving groove (51) and the magnetic block (52).

4. The new energy vehicle dashboard defrosting air duct assembly according to claim 1, characterized in that: A sealing strip (42) is provided on the cover plate (4), and the sealing strip (42) surrounds the cover plate (4).

5. The new energy vehicle dashboard defrosting air duct assembly according to claim 4, characterized in that: The defrost seal (3) has a sealing groove (31), and when the cover plate (4) is closed, the sealing strip (42) is pressed into the interior of the sealing groove (31).

6. The new energy vehicle dashboard defrosting air duct assembly according to claim 1, characterized in that: A magnetic strip (6) is provided on the cover plate (4).

7. The new energy vehicle dashboard defrosting air duct assembly according to claim 6, characterized in that: The defrost seal (3) is provided with a magnetic groove (7), which is located on the lower side of the surface of the defrost seal (3). When the cover plate (4) is closed, the magnetic strip (6) enters the interior of the magnetic groove (7).

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