CN104149577A - Noise-reduced automobile warm air blower - Google Patents
Noise-reduced automobile warm air blower Download PDFInfo
- Publication number
- CN104149577A CN104149577A CN201310173393.1A CN201310173393A CN104149577A CN 104149577 A CN104149577 A CN 104149577A CN 201310173393 A CN201310173393 A CN 201310173393A CN 104149577 A CN104149577 A CN 104149577A
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- impeller
- casing
- noise
- fan heater
- reduction noise
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- Air-Conditioning For Vehicles (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a noise-reduced automobile warm air blower, and belongs to the field of automobile parts. The noise-reduced automobile warm air blower comprises a blower shell. A draught fan assembly and a radiator assembly are arranged inside the blower shell. The radiator assembly is fixed to the lower portion of the blower shell and composed of a radiator, a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are connected into an engine circulating water system. The draught fan assembly is fixed to the upper portion of the blower shell and composed of impellers, a motor and a base, and the impellers and the motor are connected and fixed to the blower shell through the base. An air inlet is formed in one side of a cold air chamber, and an air outlet pipe communicated with the cold air chamber is arranged at the top of the cold air chamber. The impellers are forward impellers on the two sides. A shock pad is arranged between the base and the blower shell, and the outer side of the blower shell is covered with a shock pad. By means of the noise-reduced automobile warm air blower of the structure, noise is well controlled on the premise that the working performance is guaranteed.
Description
Technical field
The present invention relates to auto parts and components field, particularly a kind of automotive fan heater that reduces noise.
Background technology
Along with developing rapidly with chaufeur of modern automobile industry requires to improve constantly to car comfort, heater unit has become one of requisite annex of auto body, in cold season, heater unit is for the preference temperature that keeps operator's compartment, improve the working environment of chaufeur, avoid Windshield frosting, guarantee normally travelling of automobile, particularly heavily peace seems.
In existing technology, the heater unit of automobile often normally uses because work noise affects it greatly in the course of the work, also affects the mood of chaufeur, makes its agitation, and then may cause some evitable safety misadventures.
The noise source of heater unit has air power noise and mechanical noise, air power noise is that the vibration due to air produces, it is mainly the rotation noise of rotary blade, it is that impeller vane by High Rotation Speed periodically collides air, the noise that causes the pressure pulsation of air and velocity pulsation and produce, mechanical noise is because solid vibration produces, mainly contain shock, vibration, the reasons such as friction cause, the mechanical noise of heater unit is mainly caused by following reason: rotary blade collision air causes air pressure pulsation, excite the radiation of casing vibration institute, rotary blade and motor rotation overbalance excite casing vibration and cause, rotor axis of electric in bearing High Rotation Speed and end float misalignment excessive and cause.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of automotive fan heater that reduces noise, to solve the above-mentioned multinomial defect causing in prior art.
For achieving the above object, the invention provides following technical scheme: a kind of automotive fan heater that reduces noise, comprise the casing that is built-in with blower fan assembly and heat radiator assembly, heat radiator assembly is fixed on casing below, by radiator, coolant inlet pipe and coolant outlet pipe form, coolant inlet pipe and coolant outlet pipe are connected into cycle of engine water system, blower fan assembly is fixed on casing top, by impeller, motor and base form, the impeller base that was connected with motor is fixed on casing, cold air chamber's one side is provided with ventilation inlet, cold air chamber top is provided with the discharge pipe communicating with cold air chamber, described impeller is that double sided impeller is set in parallel on base.
Preferably, described double sided impeller is all forward direction impeller.
Preferably, the number of sheets of described double sided impeller is 10-15 sheet.
Preferably, described motor is magneto-electric machine.
Preferably, between described base and casing, be provided with rubber mount, the thickness of rubber mount is 3-7mm.
Preferably, described casing outer side covers has soft foam-rubber cushion, and the thickness of soft foam-rubber cushion is 3-7mm.
Preferably, described casing adopts the composite material of polypropylene+glass.
Preferably, in described composite material, the content of polypropylene is 80%, and the content of glass is 20%.
Preferably, described coolant inlet pipe and coolant outlet pipe are India rubber tube.
Adopt the beneficial effect of above technical scheme to be: the impeller of the heater unit of structure of the present invention is double sided impeller, in the situation that reducing wheel speed, serviceability is compared with single impeller, also had lifting to a certain degree, and reduce wheel speed, can effectively must reduce noise; Double sided impeller is all forward direction impeller, and impeller has two kinds, forward direction impeller and backward impeller, in the situation that heater unit is carried the hot air of same traffic, the noise of the generation of forward direction impeller is less than backward impeller; The number of sheets of double sided impeller is 10-15 sheet, and the number of sheets of impeller is more, and blade is better in the flow property of Ye Daonei (i.e. two interlobate gas flows) gas more by force to the constrained force of gas effect, and the noise of generation is less; Motor is magneto-electric machine, and magneto-electric machine, except configuration aspects has many advantages, and is also having certain effect reducing aspect noise of motor, and that irksome brush noise, rotor shifting noise also reduce to some extent; Between base plate and casing, be provided with rubber mount, carry out the isolation of soruce of vibration, alleviate resonance effect; Casing outer side covers has soft foam-rubber cushion, reduces the mechanical noise that body structure vibration institute width is penetrated; Casing adopts the composite material of polypropylene+glass, has improved rigidity and the intensity of casing, alleviates the vibrations that blower fan causes casing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the lateral plan of structure of the present invention.
Wherein, 1--casing, 2--radiator, 3--coolant inlet pipe, 4--coolant outlet pipe, 5--impeller,
6--motor, 7--base, 8--ventilation inlet, 9--discharge pipe, 10--rubber mount, the soft foam-rubber cushion of 11--.
The specific embodiment
Below in conjunction with accompanying drawing, describe the preferred embodiment of the present invention in detail.
Fig. 1 and Fig. 2 show a kind of specific embodiment that reduces the automotive fan heater of noise of the present invention: this automotive fan heater, comprise the casing 1 that is built-in with blower fan assembly and heat radiator assembly, heat radiator assembly is fixed on casing 1 below, by radiator 2, coolant inlet pipe 3 and coolant outlet pipe 4 form, coolant inlet pipe 3 is connected into cycle of engine water system with coolant outlet pipe 4, blower fan assembly is fixed on casing 1 top, by impeller 5, motor 6 and base 7 form, impeller 5 base 7 that was connected with motor 6 is fixed on casing 1, casing 1 one sides are provided with ventilation inlet 8, casing 1 top is provided with the discharge pipe 9 communicating with casing 1, impeller 1 is set in parallel on base 2 for double sided impeller, double sided impeller is all forward direction impeller, the number of sheets of double sided impeller is 15, motor 6 is magneto-electric machine, between base 7 and casing 1, be provided with rubber mount 10, the thickness of rubber mount 10 is 3-7mm, casing 1 outer side covers has soft foam-rubber cushion 11, the thickness of soft foam-rubber cushion 11 is 3-7mm, coolant inlet pipe 3 and coolant outlet pipe 4 are India rubber tube.
In the present embodiment, impeller 1 is double sided impeller, in the situation that reducing wheel speed, serviceability is compared with single impeller, also has lifting to a certain degree, and reduce impeller 1 rotating speed, can effectively must reduce noise; Double sided impeller is all forward direction impeller, and impeller has two kinds, forward direction impeller and backward impeller, in the situation that heater unit is carried the hot air of same traffic, the noise of the generation of forward direction impeller is less than backward impeller; The number of sheets of double sided impeller is not affecting heater unit serviceability, in the situation of not excessive loss power of motor, select as far as possible the number of blade many, the number of sheets of impeller is more, blade is better in the flow property of Ye Daonei (i.e. two interlobate gas flows) gas more by force to the constrained force of gas effect, and the noise of generation is less.
In the present embodiment, motor 6 is magneto-electric machine, and magneto-electric machine, except configuration aspects has many advantages, and is also having certain effect reducing aspect noise of motor, and that irksome brush noise, rotor shifting noise also reduce to some extent.
In addition, in the present embodiment, between base 7 and casing 1, be provided with rubber mount 10, carry out the isolation of soruce of vibration, eliminate resonance effect; Casing 1 outer side covers has soft foam-rubber cushion 11, reduce the mechanical noise that body structure vibration institute width is penetrated, casing 1 adopts the composite material of polypropylene+glass, in this composite material, the content of polypropylene is 80%, the content of glass is 20%, and high rigidity and the intensity of casing 1, alleviates the vibrations that blower fan causes casing 1.
Adopt the beneficial effect of above technical scheme to be: the heater unit of structure of the present invention guaranteeing under the prerequisite of serviceability, fine noise is controlled.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (9)
1. an automotive fan heater that reduces noise, comprise the casing that is built-in with blower fan assembly and heat radiator assembly, heat radiator assembly is fixed on casing below, by radiator, coolant inlet pipe and coolant outlet pipe form, coolant inlet pipe and coolant outlet pipe are connected into cycle of engine water system, blower fan assembly is fixed on casing top, by impeller, motor and base form, the impeller base that was connected with motor is fixed on casing, cold air chamber's one side is provided with ventilation inlet, cold air chamber top is provided with the discharge pipe communicating with cold air chamber, it is characterized in that: described impeller is that double sided impeller is set in parallel on base.
2. the automotive fan heater of reduction noise according to claim 1, is characterized in that: described double sided impeller is all forward direction impeller.
3. the automotive fan heater of reduction noise according to claim 2, is characterized in that: the number of sheets of described double sided impeller is 10-15 sheet.
4. the automotive fan heater of reduction noise according to claim 1, is characterized in that: described motor is magneto-electric machine.
5. the automotive fan heater of reduction noise according to claim 1, is characterized in that: between described base and casing, be provided with rubber mount, the thickness of rubber mount is 3-7mm.
6. the automotive fan heater of reduction noise according to claim 1, is characterized in that: described casing outer side covers has soft foam-rubber cushion, and the thickness of soft foam-rubber cushion is 3-7mm.
7. according to the automotive fan heater of the reduction noise described in claim 1 or 5 or 6, it is characterized in that: described casing adopts the composite material of polypropylene+glass.
8. the automotive fan heater of reduction noise according to claim 7, is characterized in that: in described composite material, the content of polypropylene is 80%, and the content of glass is 20%.
9. the automotive fan heater of reduction noise according to claim 1, is characterized in that: described coolant inlet pipe and coolant outlet pipe are India rubber tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310173393.1A CN104149577A (en) | 2013-05-13 | 2013-05-13 | Noise-reduced automobile warm air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310173393.1A CN104149577A (en) | 2013-05-13 | 2013-05-13 | Noise-reduced automobile warm air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104149577A true CN104149577A (en) | 2014-11-19 |
Family
ID=51875279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310173393.1A Pending CN104149577A (en) | 2013-05-13 | 2013-05-13 | Noise-reduced automobile warm air blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104149577A (en) |
-
2013
- 2013-05-13 CN CN201310173393.1A patent/CN104149577A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141119 |