Electronic control active sealing waterproof valve for automobile fresh air channel

Abstract

The electronic control active sealing waterproof valve for the automobile fresh air channel comprises a valve body and a valve mechanism, the valve mechanism comprises a driving mechanism, a valve body, a driving arm, a hinge arm shaft and a hinge shell shaft, and the valve body is arranged in the valve body and located on one side of a first air inlet; one end of the valve is hinged to the valve body through a hinge shell shaft, the other end of the valve is hinged to one side of the driving arm through a hinge arm shaft, a driving shaft hinged to the valve body is fixedly installed on the other side of the driving arm, and the driving mechanism is used for driving the driving shaft to rotate so that the valve can open or close the first air inlet. And the hinge arm shaft is in sliding connection with the side wall of the valve. The structure is simple and reliable, the occupied space is compact, the normal air inlet function is not affected, the response is rapid, and the actuation time is short; and water pressure is effectively utilized, so that the valve is sealed more tightly.

Description

Technical Field

[0001] The present invention belongs to the technical field of waterproof valves for automotive air intake channels, and particularly relates to an electronically controlled active sealing waterproof valve for a new automotive air intake channel. Background Art

[0002] In an automotive air conditioning system, the air intake duct and the air outlet of the air conditioner form the ventilation system of the air conditioner, which is responsible for delivering the processed (temperature adjustment, humidity adjustment, purification) air flow into the automotive cockpit to complete functions such as ventilation, refrigeration, heating, defrosting and demisting, and air purification in the cockpit. However, when the vehicle wades through water, the outside water often quickly enters the cockpit due to the connection between the air intake duct of the air conditioner and the cab, especially in the case of extreme sports, emergency wading or falling into water due to an accident. Summary of the Invention

[0003] The purpose of the present invention is to provide an electronically controlled active sealing waterproof valve for a new automotive air intake channel, aiming to solve the above problems.

[0004] The present invention is mainly realized through the following technical solutions: An electronically controlled active sealing waterproof valve for a new automotive air intake channel, comprising a valve body and a valve mechanism. A first air inlet is provided on one side of the valve body close to the vehicle body, and a second air inlet communicating with the atmosphere is provided on the free side of the valve body. A valve mechanism is arranged inside the valve body, and the valve mechanism is used to open or close the first air inlet. The valve mechanism includes a driving mechanism, a valve, a driving arm, a hinge arm shaft and a hinge housing shaft. The valve is arranged inside the valve body and on one side of the first air inlet. One end of the valve is hinged to the valve body through the hinge housing shaft, and the other end of the valve is hinged to one side of the driving arm through the hinge arm shaft. A driving shaft hinged to the valve body is fixedly installed on the other side of the driving arm. The driving mechanism is used to drive the driving shaft to rotate so as to open or close the first air inlet. The hinge arm shaft is slidably connected to the side wall of the valve.

[0005] To better implement the present invention, further, the valve body includes a front housing and a rear housing connected to each other. The rear housing is provided on one side of the front housing close to the vehicle body, and the second air inlet and the first air inlet are respectively provided on the front housing and the rear housing.

[0006] To better implement the present invention, further, one end of the valve is hinged to the rear housing through the hinge housing shaft, and the driving shaft is hinged to the front housing.

[0007] To better implement the present invention, further, the driving mechanism is a rotary actuator. The rotary actuator is installed on the outside of the front housing, and the driving end of the rotary actuator extends into the front housing and is connected to the driving shaft.

[0008] In order to better implement the present invention, further, a drainage cavity is provided at the bottom of the front housing, and a drainage port cover is provided on one side of the drainage cavity.

[0009] In order to better implement the present invention, further, first connecting rods are symmetrically provided at both ends on one side of the driving arm, and hinge arm shafts are correspondingly provided on both side walls of the valve. The free ends of the first connecting rods are hinged to the hinge arm shafts.

[0010] In order to better implement the present invention, further, second connecting rods are symmetrically provided on the other side of the driving arm, and the driving shaft is fixedly connected to the second connecting rods respectively.

[0011] In order to better implement the present invention, further, sliding grooves are provided on the side wall of the valve along the length direction corresponding to the hinge arm shafts.

[0012] In order to better implement the present invention, further, a soft rubber sealing strip is provided on the peripheral side of the valve near the first air inlet, and sponge strips are provided on the outer sides of the first air inlet and the second air inlet along the peripheral side respectively.

[0013] The beneficial effects of the present invention are as follows: (1) In the present invention, a valve is provided inside the valve body near the first air inlet. By driving the valve, the first air inlet is closed inside the valve body. When water accumulates and enters the valve body, the accumulated water exerts pressure on the valve, further strengthening the sealing and closing of the first air inlet, and improving the reliability of use. The present invention arranges an electronically controlled valve mechanism between the cab and the air intake passage to block the accumulated water from entering the cab when the vehicle wades through water, thereby further improving the off-road and safety performance of the vehicle. The structure of the present invention is simple and reliable, occupies a compact space, does not affect the normal air intake function, has a rapid response and a short actuation time; and effectively utilizes the water pressure, and the valve is more tightly sealed under the action of the water pressure.

[0014] (2) The driving arm in the present invention is a connecting rod mechanism, which is simple and reliable. In addition, the valve structure cleverly utilizes the water pressure, that is, the greater the water pressure, the better the sealing effect, avoiding the risk of valve failure caused by water pressure. When waiting to work, the valve is retracted to one side inside the front housing, with a compact layout, optimizing the utilization rate of the overall occupied space of the structure. The actuation and response time of the present invention is rapid, the function is stable, and the cost is controllable, which can escort vehicles with wading functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic installation structure diagram of the waterproof electronically controlled active sealing valve for the fresh air passage of the vehicle of the present invention; Figure 2 It is a schematic structure diagram of the valve in the open state; Figure 3Schematic diagram of the valve in the closed state; Figure 4 Schematic diagram of the overall structure of the waterproof electric control active sealing valve for the fresh air channel of the vehicle of the present invention; Figure 5 Schematic diagram of the installation structure of the actuator; Figure 6 Schematic diagram of the connection structure between the valve and the driving arm; Figure 7 Schematic diagram of the structure of the valve.

[0016] Wherein: 1 - front housing, 2 - rear housing, 3 - valve, 4 - driving arm, 5 - driving shaft, 6 - articulated arm shaft, 7 - articulated housing shaft, 8 - buffer nail, 9 - actuator, 10 - drain port cover, 11 - screw, 12 - sponge strip, 13 - soft rubber sealing strip, 100 - firewall, 200 - front ventilation cover plate, 300 - valve body. Detailed implementation manners

[0017] Example 1: An electric control active sealing and waterproof valve for the fresh air channel of a vehicle, comprising a valve body 300 and a valve mechanism. As Figures 1-3 shown, a firewall 100, a front ventilation cover plate 200 and a valve body 300 are provided on the front side of the vehicle body. A first air inlet is provided on the side of the valve body 300 close to the vehicle body, and a second air inlet communicating with the atmosphere is provided on the free side of the valve body 300; a valve mechanism is provided inside the valve body 300, and the valve mechanism is used to open or close the first air inlet; The valve mechanism includes a driving mechanism, a valve 3, a driving arm 4, an articulated arm shaft 6 and an articulated housing shaft 7. The valve 3 is arranged inside the valve body 300 and on one side of the first air inlet. One end of the valve 3 is articulated with the valve body 300 through the articulated housing shaft 7, and the other end of the valve 3 is articulated with one side of the driving arm 4 through the articulated arm shaft 6. The other side of the driving arm 4 is fixedly installed with a driving shaft 5 articulated with the valve body 300. The driving mechanism is used to drive the driving shaft 5 to rotate so as to open or close the first air inlet; the articulated arm shaft 6 is slidably connected with the side wall of the valve 3.

[0018] Preferably, as Figure 6 shown, first connecting rods are symmetrically arranged at both ends of one side of the driving arm 4, and second connecting rods are symmetrically arranged at both ends of the other side. Sliding grooves are respectively arranged on both side walls of the valve 3, and the articulated arm shaft 6 is slidably arranged inside the sliding grooves. The free end of the articulated arm shaft 6 is articulated with the first connecting rod. The driving shaft 5 sequentially penetrates through the two second connecting rods, and the driving shaft 5 is fixedly connected with the second connecting rods.

[0019] Preferably, as Figure 2 、 Figure 3 andFigure 7 As shown, a soft rubber sealing strip 13 is provided on the circumferential side of the valve 3 near the first air inlet, and sponge strips 12 are respectively provided along the circumferential side on the outer sides of the first air inlet and the second air inlet.

[0020] The driving arm 4 in the present invention is a link mechanism, which is simple and reliable. In addition, the structure of the valve 3 ingeniously utilizes the water pressure, that is, the greater the water pressure, the better the sealing effect, avoiding the risk of the valve 3 failing due to water pressure. When waiting to work, the valve 3 is retracted to one side inside the front housing 1, with a compact layout, optimizing the utilization rate of the overall occupied space of the structure. The actuation and response time of the present invention is rapid, the function is stable, and the cost is controllable, which can escort vehicles with wading functions.

[0021] Embodiment 2: An electronically controlled active sealing waterproof valve for a fresh air passage of an automobile, as Figures 1-3 shown, an electronically controlled active sealing valve is arranged between the cab and the air intake passage to block the accumulated water from entering the cab when the vehicle wades through water, thereby further improving the off-road and safety performance of the vehicle. The layout of the present invention is simple and reliable, with rapid response and short actuation time; and it effectively utilizes the water pressure, and the valve 3 is more tightly sealed under the action of the water pressure. The valve 3 device occupies a compact space and does not affect the normal air intake function.

[0022] As Figure 4 shown, the electronically controlled sealing valve 3 specifically includes a front housing 1, a rear housing 2, a valve 3, a driving arm 4, a driving shaft 5, a hinge arm shaft 6, a hinge housing shaft 7, a buffer pin 8, an actuator 9, a drain port cover 10, a screw 11, etc., and a sponge strip 12.

[0023] The connection relationship between each component is: as Figures 2-7 shown, the front housing 1 and the rear housing 2 are integrally combined by welding. The driving arm 4 and the valve 3 are hinged into one body through the hinge arm shaft 6; the rear housing 2 is hinged to the valve 3 through the hinge housing shaft 7; the driving shaft 5 passes through the front housing 1 and the driving arm 4, the driving shaft 5 is hinged to the front housing 1 and is assembled into one body with the driving arm 4.

[0024] Preferably, the actuator 9 is assembled with the hexagonal shaft of the driving shaft 5 through a hexagonal hole; the actuator 9 is connected to the front housing 1 through the screw 11.

[0025] Preferably, the drain port cover 10 is hinged to the front housing 1; the sponge strip 12 is integrally connected to the front housing 1 by bonding.

[0026] According to its working principle, this product is mainly divided into a housing part and a valve mechanism part; as Figure 2 shown, the valve 3 is fully open when the product is in the waiting-to-work state; as Figure 3As shown in the figure, the actuator 9 is powered on, and the overall structure composed of the drive shaft 5, the drive arm 4, and the articulated arm shaft 6 drives the valve 3 to rotate along the articulated housing shaft 7; finally, the valve 3 is in close contact with the rear housing 2. At this time, the actuator 9 is powered off, and the actuator 9 is self-locked to keep the valve 3 in the closed state; at this time, if water is injected into the cavity of the front housing 1, the water pressure will exert pressure on the rear housing 2 through the valve 3, thereby making the sealing effect more reliable. The opening of the valve 3 is opposite to the above process.

[0027] The present invention adopts a linkage mechanism, which is simple and reliable. As Figure 7 shown, the valve 3 body is made of hard plastic to ensure good stiffness and no deformation of the valve 3. The soft rubber adopts the micro-foam process to ensure reliable sealing and waterproofing. In addition, the structure of the valve 3 makes clever use of the water pressure, that is, the greater the water pressure, the better the sealing effect, avoiding the risk of valve 3 failure caused by water pressure; finally, the valve 3 is retracted to one side of the front housing 1 during work, with a compact layout, optimizing the utilization rate of the overall occupied space of the structure. In short, this product has rapid actuation and response times, stable functions, and controllable costs, and can escort vehicles with wading functions.

[0028] The above are only the preferred embodiments of the present invention, and do not impose any formal restrictions on the present invention. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of the present invention all fall within the protection scope of the present invention.

Claims

1. An electrically controlled active sealing waterproof valve for a fresh air duct of an automobile, characterized in that: It comprises a valve body (300) and a valve mechanism, wherein a first air inlet is arranged on a side of the valve body (300) close to a vehicle body, and a second air inlet communicated with the atmosphere is arranged on a free side of the valve body (300); a valve mechanism is arranged inside the valve body (300), and the valve mechanism is used to open or close the first air inlet; The valve mechanism comprises a driving mechanism, a valve (3), a driving arm (4), an articulated arm shaft (6) and an articulated shell shaft (7); the valve (3) is arranged inside a valve body (300) and located on one side of a first air inlet; one end of the valve (3) is articulated to the valve body (300) via the articulated shell shaft (7); the other end of the valve (3) is articulated to one side of the driving arm (4) via the articulated arm shaft (6); and a driving shaft (5) articulated to the valve body (300) is fixedly mounted on the other side of the driving arm (4); the driving mechanism is used to drive the driving shaft (5) to rotate so that the valve (3) opens or closes the first air inlet; and the articulated arm shaft (6) is slidably connected to the side wall of the valve (3).

2. The electrically controlled active sealing waterproof valve for automobile fresh air duct according to claim 1, characterized in that: The valve body (300) comprises a front shell (1) and a rear shell (2) which are connected to each other, the rear shell (2) being arranged on a side of the front shell (1) close to the vehicle body, and the front shell (1) and the rear shell (2) being respectively provided with a second air inlet and a first air inlet.

3. The electrically controlled active sealing waterproof valve for automobile fresh air duct according to claim 2, characterized in that: One end of the valve (3) is hinged to the rear housing (2) via a hinged housing shaft (7), and the drive shaft (5) is hinged to the front housing (1).

4. The electrically controlled active sealing waterproof valve for automobile fresh air duct according to claim 2, characterized in that: The driving mechanism is a rotary actuator (9), which is mounted on the outside of the front housing (1), and the driving end of the rotary actuator (9) extends into the interior of the front housing (1) and is connected to the driving shaft (5).

5. The electrically controlled active sealing waterproof valve for automobile fresh air duct according to claim 2, characterized in that: The bottom of the front housing (1) is provided with a drainage cavity, and one side of the drainage cavity is provided with a drainage port cover (10).

6. The electrically controlled active sealing waterproof valve for automobile fresh air duct according to claim 1, characterized in that: First connecting rods are symmetrically arranged at both ends of one side of the driving arm (4), and articulated arm shafts (6) are correspondingly arranged on both side walls of the valve (3), and the free end of the first connecting rod is hinged to the articulated arm shaft (6).

7. The electrically controlled active sealing waterproof valve for automobile fresh air duct according to claim 6, characterized in that: A second connecting rod is symmetrically arranged on the other side of the driving arm (4), and the driving shaft (5) is fixedly connected to the second connecting rod.

8. An electrically controlled active sealing waterproof valve for a fresh air duct of an automobile according to any one of claims 1 to 7, characterized in that: The side wall of the valve (3) is provided with a sliding groove along the length direction corresponding to the hinged arm shaft (6).

9. The electrically controlled active sealing waterproof valve for automobile fresh air duct according to claim 1, characterized in that: A soft rubber sealing strip (13) is provided on the circumferential side of the valve (3) close to the first air inlet, and sponge strips (12) are provided on the outer sides of the first air inlet and the second air inlet respectively along the circumferential sides.

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