A new type of ventilation mechanism

Abstract

This invention discloses a novel ventilation mechanism, comprising a housing, a fan, an electromagnet, a ventilation plate, a cover plate, fan blades, a control box, and a socket. The fan is installed inside the housing, and fan blades are mounted on the front end of the fan's armature shaft. A blind hole is provided at the rear end of the fan's armature shaft, and an electromagnet mounting hole is provided on the rear end cover of the fan corresponding to the blind hole. The fixed end of the electromagnet is fixedly mounted on the rear end of the fan and extends into the blind hole. Both the electromagnet and the fan are connected to the control box, which has a socket for connecting a power source. An air outlet I is provided at the rear end of the housing, and the ventilation plate is mounted on the moving end of the electromagnet. A sealing ring is provided on the end face of the ventilation plate facing the housing, allowing the ventilation plate to seal air outlet I. A cover plate is installed at the front opening of the housing, and an air outlet II is provided on the cover plate. This invention adopts an integrated design of the fan, electromagnet, ventilation plate, housing, sealing gasket, and fan blades, resulting in a simple structure, convenient installation, and effective space saving. It also possesses good resistance to vibration and impact, as well as rain and salt spray protection.

Description

Technical Field

[0001] This invention belongs to the field of vehicle ventilation systems, and specifically relates to a novel ventilation mechanism for ventilation and exhaust inside a vehicle. Background Technology

[0002] As a crucial component of military vehicle ventilation systems, the ventilation mechanism typically consists of a fan, fan blades, and air exchange devices. During vehicle operation, the ventilation and exhaust functions are achieved by directly or indirectly controlling the operation of the fan and air exchange devices within the ventilation mechanism. When the vehicle is ventilating, the fan in the ventilation mechanism rotates and the air exchange device activates, initiating ventilation inside the vehicle. When the vehicle is exhausting, the fan rotation mode is changed, while the air exchange device remains activated, and the vehicle operates in exhaust mode. When the vehicle stops ventilation or exhausting, the fan stops rotating, the air exchange device ceases operation, and a reliable seal is maintained.

[0003] Existing ventilation systems have the following shortcomings:

[0004] 1. The opening and closing of the four fan-shaped ventilation openings are achieved by the stepper motor driving the closing body to rotate 45 degrees in the circumference. Because the closing body and the support body are not on the same plane, there is a problem of poor sealing at the junction of the closing body and the support body after the four fan-shaped ventilation openings are closed.

[0005] 2. When the ventilation system is applied to amphibious vehicles, it cannot prevent waves from rushing into the vehicle through the ventilation system's ducts, thus limiting the use of the ventilation system in certain environments;

[0006] 3. It adopts bus communication control, which requires a separate controller configuration, making the structure relatively complex;

[0007] 4. The controller, fan, and stepper motor are scattered and the wiring layout between them is not aesthetically pleasing, and the degree of integration is not high.

[0008] In summary, with the increasing demands for combat-oriented training and equipment integration, as well as the overall improvement in equipment reliability, existing ventilation mechanisms are no longer suitable for the technological development of vehicle ventilation systems. Summary of the Invention

[0009] To address the aforementioned technical problems, this invention provides a novel ventilation mechanism with a simple structure, convenient installation, good sealing performance, high reliability, high degree of integration, and strong environmental adaptability.

[0010] The technical solution adopted in this invention is as follows: a novel ventilation mechanism, comprising a housing, a fan, an electromagnet, a ventilation plate, a cover plate, fan blades, a control box, and a socket; the fan is installed inside the housing, and fan blades are installed at the front end of the fan armature shaft; a blind hole is provided at the rear end of the fan armature shaft, and an electromagnet mounting hole is provided at the rear end cover of the fan corresponding to the blind hole; the fixed end of the electromagnet is fixedly installed on the rear end of the fan and extends into the blind hole; both the electromagnet and the fan are connected to the control box, and a socket is provided on the control box for connecting a power supply; an air outlet I is provided at the rear end of the housing, and the ventilation plate is installed on the moving end of the electromagnet; a sealing ring is provided on the end face of the ventilation plate facing the housing, and the ventilation plate can seal the air outlet I; a cover plate is installed at the front opening of the housing, and an air outlet II is provided on the cover plate.

[0011] The ventilation mechanism of the above-mentioned new structure also includes a rear cover, which is fixedly installed on the housing; an air inlet is formed between the rear cover and the housing; and an air outlet III is provided on the rear cover.

[0012] In the ventilation mechanism of the above-mentioned new structure, a baffle is provided at the air outlet III.

[0013] In the ventilation mechanism of the above-mentioned novel structure, the cover plate is provided with a wire outlet hole, and the power wire outlet holes of the fan and electromagnet are led out to connect to the control box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention has a sealing ring on the end face facing the shell, which has good sealing performance and improves the reliability of the product.

[0016] (2) The present invention adopts an integrated design of fan, electromagnet, ventilation plate, body, sealing gasket and fan blade, which is simple in structure, convenient to install, effectively saves space, and has good anti-vibration and impact resistance as well as rainproof and salt spray resistance.

[0017] (3) The present invention arranges the power lines of the fan and electromagnet from the inside and welds them to the socket. There is no external wiring. The overall appearance and structure are beautiful and simple, and it has good applicability.

[0018] (4) The electromagnet is placed in the blind hole of the fan armature shaft, which can effectively improve the internal space utilization of the ventilation mechanism and make the overall layout more compact.

[0019] (5) By installing a baffle at the air vent III on the shell and designing a suitable height difference between the air vent III on the shell and the internal air inlet and outlet duct, water can be effectively prevented from flowing back into the vehicle body when dealing with water crossings, thus improving environmental adaptability. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention. Detailed Implementation

[0021] The present invention will now be further described with reference to the accompanying drawings.

[0022] like Figure 1 As shown, the present invention includes a housing 1, a fan 2, an electromagnet 3, a ventilation plate 4, a cover plate 5, a fan blade 6, a baffle 9, a control box 10, a rear cover 13, and a socket 11. The fan 2 is installed inside the housing 1, and the fan blade 6 is installed at the front end of the armature shaft of the fan 2. A blind hole is provided at the rear end of the armature shaft of the fan 2, and an electromagnet mounting hole is provided on the rear cover 21 of the fan 2 corresponding to the blind hole. The fixed end of the electromagnet is fixedly installed on the rear end of the fan and extends into the blind hole. The fixed end of the electromagnet 3 is fixedly installed in the electromagnet mounting hole 21, which can effectively improve the internal space utilization of the ventilation mechanism and make the overall layout more compact.

[0023] The rear end of the housing 1 is provided with an air vent I. An air exchange plate 4 is installed on the moving end of the electromagnet 3. A sealing ring 7 is provided on the end face of the air exchange plate 4 facing the housing. The air exchange plate 4 can seal the air vent I to realize the opening and closing of the air duct, which can effectively prevent external water from entering the interior of the electromagnet 3 and prevent damage to the electromagnet 3. A cover plate 5 is installed at the front opening of the housing 1. The cover plate 5 is provided with an air vent II 51 and a wire outlet hole 52.

[0024] The power cords of electromagnet 3 and fan 2 are led out from the outlet hole and connected to control box 10; the power cord of electromagnet 3 is fixed by mounting bracket 12. Control box 10 is equipped with socket 11 for connecting power. Rear cover 13 is fixedly mounted on the housing and located outside housing 1; an air intake duct is formed between rear cover 13 and housing 1; air vent Ⅲ is provided on rear cover 13, and a baffle 9 is provided at air vent Ⅲ. A suitable height difference between the housing air vent Ⅲ and the internal air intake / exhaust duct effectively prevents water backflow into the vehicle body when wading, improving environmental adaptability.

[0025] like Figure 1 As shown, the working process of this invention is as follows: When the vehicle is not started or the ventilation mechanism is not required, the fan 2 remains stationary, the moving end of the electromagnet 3 does not move, and the air duct between the ventilation plate 4 and the sealing ring 7 remains closed. When ventilation of the vehicle is required, the electromagnet 3 is powered on, and its moving end drives the ventilation plate 4 to move upward a certain distance. At this time, the air duct opens, and then the fan 2 is powered on, driving the fan blade 6 to rotate in the forward direction. Outside air flows in from the baffle 9 of the air vent III of the rear cover, flows into the inner cavity of the body through the air duct between the ventilation plate and the sealing ring, and is then drawn in by the rotating fan blade 6, finally entering the vehicle interior through the rear cover, thus realizing the vehicle interior ventilation function; changing the direction of fan rotation can realize the vehicle interior exhaust function.

Claims

1. A novel ventilation mechanism, characterized by: The device includes a housing, a fan, an electromagnet, a ventilation plate, a cover plate, fan blades, a control box, and a socket. The fan is installed inside the housing, and fan blades are installed at the front end of the fan's armature shaft. A blind hole is provided at the rear end of the fan's armature shaft, and an electromagnet mounting hole is provided at the rear end cover of the fan corresponding to the blind hole. The fixed end of the electromagnet is fixedly installed on the rear end of the fan and extends into the blind hole. Both the electromagnet and the fan are connected to the control box, which has a socket for connecting a power source. The rear end of the housing has an air outlet I, and the ventilation plate is installed on the moving end of the electromagnet. A sealing ring is provided on the end face of the ventilation plate facing the housing, which can seal the air outlet I. A cover plate is installed at the front opening of the housing, and an air outlet II is provided on the cover plate.

2. The ventilation mechanism with the novel structure according to claim 1, characterized in that: It also includes a rear cover, which is fixedly installed on the housing; an air inlet is formed between the rear cover and the housing; and an air vent III is provided on the rear cover.

3. The ventilation mechanism with the novel structure according to claim 2, characterized in that: A screen is installed at air vent III.

4. The ventilation mechanism with the novel structure according to claim 1, characterized in that: The cover plate is provided with a cable outlet hole, through which the power cables of the fan and electromagnet are led out and connected to the control box.

Images