Ventilation mechanism with novel structure

Abstract

The invention discloses a ventilation mechanism of a novel structure. The ventilation mechanism comprises a shell, a fan, an electromagnet, a ventilation plate, a cover plate, fan blades, a control box and a socket. The fan is installed in the shell, and fan blades are installed at the front end of a rotating shaft of an armature of the fan. A blind hole is formed in the rear end of a rotating shaft of an armature of the fan, an electromagnet installation hole is formed in the position, corresponding to the blind hole, of a rear end cover of the fan, the fixed end of the electromagnet is fixedly installed at the rear end of the fan and stretches into the blind hole, the electromagnet and the fan are both connected with the control box, and a socket is arranged on the control box and used for being connected with a power source. An air opening I is formed in the rear end of the shell, the ventilation plate is installed at the movable end of the electromagnet, a sealing ring is arranged on the end face, facing the shell, of the ventilation plate, and the ventilation plate can seal the air opening I; a cover plate is installed at an opening in the front end of the shell, and an air opening II is formed in the cover plate. The integrated design of the fan, the electromagnet, the ventilation plate, the body, the sealing gasket and the fan blades is adopted, the structure is simple, installation is convenient and fast, space is effectively saved, and meanwhile the good performance of vibration impact resistance, rainwater prevention, salt mist prevention and the like is achieved.

Description

Technical Field

[0001] The invention belongs to the field of vehicle ventilation systems, and in particular relates to a ventilation mechanism with a new structure, which is used for ventilation and exhaust inside a vehicle. Background Art

[0002] As an important part of the ventilation system of military vehicles, the ventilation mechanism is generally composed of fans, fan blades, ventilation devices, etc. During the operation of the vehicle, the ventilation and exhaust functions of the vehicle can be realized by directly or indirectly controlling the actions of the fans and ventilation devices in the ventilation mechanism. When the vehicle is ventilated, the fan in the ventilation mechanism rotates and the ventilation device operates to start ventilating the interior of the vehicle; when the vehicle is exhausting, the fan rotation mode is changed and the ventilation device remains in operation, and the vehicle works in the exhaust state; when the vehicle stops ventilation or exhaust, the fan stops rotating, the ventilation device stops operating and remains reliably closed.

[0003] The existing ventilation mechanism has the following deficiencies: 1. The opening and closing of the four fan-shaped vents are realized by the stepper motor driving the closing body to rotate 45 degrees in the circumferential direction. Because the closing body and the supporting body are not in the same plane, after the four fan-shaped vents are closed, there is a problem of poor sealing at the junction of the closing body and the supporting body; 2. When the ventilation mechanism is used on an amphibious vehicle, it is impossible to prevent the waves from rushing into the vehicle through the ventilation mechanism air duct, so the use of the ventilation mechanism is limited in certain environments; 3. Using bus communication control requires a separate controller, and the structure is relatively complex; 4. The controller, fan and stepper motor are arranged in a dispersed manner, the wiring layout between them is not beautiful, and the degree of integration is not high.

[0004] In summary, with the requirements of actual combat training of troops, the degree of equipment integration and the overall improvement of equipment reliability, the existing ventilation mechanism is no longer suitable for the requirements of the development of vehicle ventilation system technology. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a ventilation mechanism with a new structure which has the advantages of simple structure, convenient installation, good sealing, high reliability, high degree of integration and strong environmental adaptability.

[0006] The technical solution adopted by the present invention is: a ventilation mechanism of a new structure, including a shell, a fan, an electromagnet, a ventilation plate, a cover plate, a fan blade, a control box and a socket; the fan is installed in the shell, and the front end of the rotating shaft of the armature of the fan is equipped with a fan blade; the rear end of the rotating shaft of the armature of the fan is provided with a blind hole, and the rear end cover of the fan is provided with an electromagnet mounting hole 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 electromagnet and the fan are both connected to the control box, and the control box is provided with a socket for connecting a power supply; the rear end of the shell is provided with an air port I, the ventilation plate is installed on the moving end of the electromagnet, and a sealing ring is provided on the end face of the ventilation plate facing the shell, and the ventilation plate can seal the air port I; the front end opening of the shell is provided with a cover plate, and the cover plate is provided with an air port II.

[0007] The above-mentioned novel structure ventilation mechanism also includes a rear cover, which is fixedly mounted on the shell; an air inlet is formed between the rear cover and the shell; and an air port III is provided on the rear cover.

[0008] In the above-mentioned novel structure ventilation mechanism, a blocking net is provided at the air outlet III.

[0009] In the ventilation mechanism of the novel structure, the cover plate is provided with a wire outlet hole, and the power wire outlet holes of the fan and the electromagnet are led out to connect to the control box.

[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention is provided with a sealing ring on the end surface facing the housing, which has good sealing performance and improves the reliability of the product.

[0011] (2) The present invention adopts an integrated design of a fan, an electromagnet, a ventilation plate, a body, a sealing gasket, and a fan blade, which has a simple structure, is easy to install, and effectively saves space. At the same time, it has good resistance to vibration and impact, and is resistant to rain and salt spray.

[0012] (3) The present invention arranges the power lines of the fan and the electromagnet from the inside and welds them to the socket without external wiring. The overall appearance and structure are beautiful and simple, and have good applicability.

[0013] (4) The fixed end of the electromagnet is placed in the blind hole of the rotating shaft of the fan armature, which can effectively improve the internal space utilization of the ventilation mechanism and make the overall layout more compact.

[0014] (5) A retaining net is provided at the air outlet III on the shell, and a suitable height difference is designed between the air outlet III of the shell and the internal inlet and outlet air duct, which can effectively prevent water from flowing back into the vehicle body when dealing with wading, thereby improving the environmental adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the present invention. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] 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 in the housing 1, and the front end of the rotating shaft of the armature of the fan 2 is installed with a fan blade 6; the rear end of the rotating shaft of the armature of the fan 2 is provided with a blind hole, and the rear end cover 21 of the fan 2 is provided with an electromagnet mounting hole 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, and 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.

[0018] The rear end of the housing 1 is provided with an air port I, and a ventilation plate 4 is mounted on the moving end of the electromagnet 3. A sealing ring 7 is provided on the end surface of the ventilation plate 4 facing the housing. The ventilation plate 4 can seal the air port I to realize the opening and closing of the air duct, which can effectively prevent external water from entering the electromagnet 3 and prevent damage to the electromagnet 3. A cover plate 5 is installed at the front end opening of the housing 1, and the cover plate 5 is provided with an air port II 51 and a wire outlet hole 52.

[0019] The power cords of the electromagnet 3 and the fan 2 are led out from the outlet hole to connect to the control box 10; the power cord of the electromagnet 3 is fixed by the fixing frame 12. The control box 10 is provided with a socket 11 for connecting the power supply. The rear cover 13 is fixedly mounted on the housing and is located outside the housing 1; an air inlet duct is formed between the rear cover 13 and the housing 1; an air port III is provided on the rear cover 13, and a blocking net 9 is provided at the air port III. The appropriately designed height difference between the housing air port III and the internal air inlet and outlet duct can effectively prevent water from flowing back into the vehicle body when dealing with wading, thereby improving the adaptability to the environment.

[0020] like Figure 1 As shown, the working process of the present invention is as follows: when the vehicle is not started or the working ventilation mechanism is not needed, the fan 2 remains in a stopped state, 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 in a closed state. When the vehicle needs to be ventilated, the electromagnet 3 is powered on, and its moving end drives the ventilation plate 4 to move upward for a certain distance. At this time, the air duct is opened, and then the fan 2 is powered on, driving the fan blade 6 to rotate forward, and the outside wind flows in from the baffle 9 of the air port 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 sucked in by the rotating fan blade 6, and finally enters the interior of the vehicle through the rear cover, realizing the ventilation function inside the vehicle; changing the rotation direction of the fan can realize the exhaust function inside the vehicle.

Claims

1. A ventilation mechanism of a new structure, characterized by: It includes a shell, a fan, an electromagnet, a ventilation plate, a cover plate, a fan blade, a control box and a socket; the fan is installed in the shell, and the front end of the rotating shaft of the fan's armature is equipped with a fan blade; the rear end of the rotating shaft of the fan's armature is provided with a blind hole, and the rear end cover of the fan is provided with an electromagnet mounting hole 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 electromagnet and the fan are both connected to the control box, and the control box is provided with a socket for connecting a power supply; the rear end of the shell is provided with an air port I, the ventilation plate is installed on the moving end of the electromagnet, and a sealing ring is provided on the end face of the ventilation plate facing the shell, and the ventilation plate can seal the air port I; a cover plate is installed at the front end opening of the shell, and an air port II is provided on the cover plate.

2. The novel ventilation mechanism according to claim 1 is characterized in that: It also includes a back cover, which is fixedly mounted on the shell; an air inlet is formed between the back cover and the shell; and an air outlet III is arranged on the back cover.

3. The novel ventilation mechanism according to claim 2 is characterized in that: A retaining net is provided at tuyere III.

4. The novel ventilation mechanism according to claim 1 is characterized in that: The cover plate is provided with a wire outlet hole, and the power wire outlet holes of the fan and the electromagnet are led out to connect the control box.

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