A kind of air-exchanging structure that can open and close air outlet voluntarilyTechnical field
The present invention relates to vehicle dormer window accessory technical field, especially about a kind of air-exchanging structure that can open and close air outlet voluntarily.
Background technology
Safety roof air regulator is one of important spare part on automobile, and all kinds of passenger vehicle of China is all general arranges safety roof air regulator at vehicle roof, in case of emergency can be used as escape hatch, and can increase air and outside air convection current in car.But the electronic high wind scavenger fan in use ubiquity following problem of existing vehicle safety against the wind in window: 1. air outlet position is lower, and area is less, unit time loss air quantity is comparatively large, and total ventilation amount is less; Easily make vehicle interior temperature raise, produce high temperature alarm, have a strong impact on normal vehicle operation.2. rainy day vehicle travels in way, easily leaks, leaks out, affect the work of electric elements in car.3., when vehicle is out of service, the foreign material such as snowflake, leaf easily by air port into the car, cause damage to vehicle core component.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of air-exchanging structure that can open and close air outlet voluntarily, that air port keying assembly is fixed on top cover, and be positioned on the downside of fan assembly, corresponding with the blade outer rim on fan assembly, adopt tube axial fan to carry out straight-line ventilation, while ensureing ventilation volume, also reduce the noise during work of safety roof air regulator.
The present invention is achieved through the following technical solutions: a kind of air-exchanging structure that can open and close air outlet voluntarily, open and close assembly by top cover, retaining ring, centre circle assembly, swivelling cover assembly, fan assembly and air port to form, retaining ring and centre circle assembly is provided with between top cover and swivelling cover assembly, top cover and swivelling cover assembly are combined closely by sealant and screw, fan assembly is fixed in centre circle assembly, it is characterized in that: described air port opens and closes assembly and is fixed on top cover, and be positioned on the downside of fan assembly, corresponding with the blade outer rim on fan assembly.
Described air port opens and closes immediately below the air port court of the exhaust outlet of assembly.
Described retaining ring is fixed on top cover, and the fan of fan assembly is tube axial fan, is fixed in centre circle assembly, can dismantles separately.
Described centre circle assembly is made up of inner ring, centre circle and outer ring, and inner ring is as the support of fan attachment assembly, and centre circle is the connector of top cover and swivelling cover assembly and bears primary seal, and outer ring is the muscle that keeps off the rain, and defines outer circulation ventilation system with top cover.
The present invention, tuyere position significantly increases, and air outlet area is very large, and resistance is very little, and unit time loss air quantity is very little, and total ventilation amount is comparatively large, can meet the use of various operating mode.
Rainy day vehicle operating, boost ventilator effect is better, and rainwater and choke are not easily into the car.When vehicle is out of service, air port is by automatically controlled automatic closedown, and the foreign material such as snowflake, leaf cannot by scavenger fan into the car, can play a good protection to the critical component in car.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the cutaway view of Fig. 1.
Detailed description of the invention
Known by Fig. 1, Fig. 2, a kind of air-exchanging structure that can open and close air outlet voluntarily, open and close assembly 6 by top cover 1, retaining ring 2, centre circle assembly 3, swivelling cover assembly 4, fan assembly 5 and air port to form, retaining ring 2 and centre circle assembly 3 is provided with between top cover 1 and swivelling cover assembly 4, top cover 1 and swivelling cover assembly 4 are combined closely by sealant and screw, fan assembly 5 is fixed in centre circle assembly 3, described air port opens and closes assembly 6 and is fixed on top cover 1, and be positioned on the downside of fan assembly 5, corresponding with the blade outer rim on fan assembly 5.Described air port opens and closes immediately below the air port court of the exhaust outlet of assembly 6.Described retaining ring 2 is fixed on top cover 1, and the fan of fan assembly 5 is tube axial fan, is fixed in centre circle assembly 3, can dismantles separately.Described centre circle assembly 3 is made up of inner ring 3-1, centre circle 3-2 and outer ring 3-3, inner ring 3-1 is as the support of fan attachment assembly 5, centre circle 3-2 is the connector of top cover 1 and swivelling cover assembly 4 and bears primary seal, and outer ring 3-3 is the muscle that keeps off the rain, and defines outer circulation ventilation system with top cover 1.