KR100976827B1 - Blower unit for Vehicles - Google Patents

Abstract

The present invention relates to a blower unit for a vehicle, and more particularly, in a center-mounted air conditioner, an air inlet is formed to eccentrically install a duct to one side of a case, thereby improving rigidity of the vehicle and reducing noise in a cabin. A vehicle blowing unit that can be reduced.

Accordingly, the present invention provides an air inlet 111 and an air inlet 112 spaced apart from each other, and includes a duct 110 in which a first passage 115 and a second passage 116 are formed; The first and second passages are installed to be rotatable at the branch points of the first and second passages 115 and 116 and control the internal and external air introduced through the external air inlet 111 and the internal air inlet 112. A conversion door 113 selectively flowing into the 115 and 116; Including a blower 120 composed of a blowing fan 121 and a motor 124 for driving the blowing fan 121 is installed to forcibly blow the air passing through the duct 110 into the air conditioning case (10) Characterized in that made.

Air Conditioning Units, Cases, Heat Exchangers, Conversion Doors, Blowers, Ducts

Description

Blower unit for Vehicles

1 is a perspective view showing a state in which a conventional air conditioner is disassembled;

Figure 2 is a planar cross-sectional view showing a duct portion formed inside and outside air inlet in the conventional air conditioner,

3 is a plan sectional view showing a duct part in the air inflow mode in the air conditioning apparatus according to the first embodiment of the present invention;

4 is a plan sectional view showing a duct part in the air conditioning apparatus according to the second embodiment of the present invention.

<Description of Signs of Major Parts of Drawings>

100: blowing unit 110: duct

111: outside air inlet 112: inside air inlet

113: switching door 114: partition wall

115: first passage 116: second passage

120: blower 121: blowing fan

122: first blowing fan 123: second blowing fan

124: motor

The present invention relates to a blower unit for a vehicle, and more particularly, in a center-mounted air conditioner, an air inlet is formed to eccentrically install a duct to one side of a case, thereby improving rigidity of the vehicle and reducing noise in a cabin. A vehicle blowing unit that can be reduced.

In general, the air conditioning system of a vehicle is for cooling or heating the vehicle interior by introducing air outside the vehicle into the vehicle interior or by heating or cooling the air in the vehicle interior. It comprises a heater core and an air conditioning apparatus for circulating the air cooled or heated by the evaporator or heater core into the vehicle interior.

The air conditioner includes a three-piece air conditioner including a blower unit, an evaporator, and a heater core independently, a semi-center mounting type air conditioner in which a blower unit and an evaporator are integrally formed in one case, and a blower unit, an evaporator, All of the heater cores can be classified as a center mounting type air conditioner integrally formed in one case.

Hereinafter, an air conditioning apparatus of the center mounting type will be described as an example.

As shown in FIGS. 1 and 2, the air conditioner 1 has the first and second case members 11 and 12 symmetrically coupled to each other and has an air flow passage 15 therein. It comprises a case 10, a temperature control door 13 and a plurality of mode doors 14 mounted on the air flow passage (15).

The blower 40 is installed at the inlet 15a side of the case 10, and the defrost vent 16 and the face vent 17 are connected to each blowing duct (not shown) at the outlet 15b side. The floor vent 18 is formed.

In addition, a duct 30 having an outside air inlet 31 and an inside air inlet 32 is installed at an inlet 15a side of the case 10, and a conversion door 33 is installed inside the duct 30. , Controls the internal and external air flowing through the outdoor air inlet (32) (31).

In addition, an evaporator 2 and a heater core 3 are sequentially installed in the case 10.

According to such an air conditioning apparatus, the air introduced into the case 10 by the operation of the blower 40 is cooled or heated in a process of selectively passing through the evaporator 2 and the heater core 3, and thus cooling or heating. The air is supplied to the interior of the vehicle through each of the blower ducts, thereby cooling or heating.

However, the air conditioner (1) is a rainwater flowing down the windshield as the duct 30 formed with the internal air inlet 32 and the external air inlet 31 is located in the center of the vehicle to introduce the internal and external air In addition to the poor drainage, the arrangement and design of the wiper link device installed in the center of the vehicle is difficult, and there is a problem in the rigid design of the vehicle.

In addition, as the internal and external air inlets 32 and 31 are located at the center of the vehicle, the noise of the engine is transmitted to the interior of the vehicle as it is closer to the engine.

An object of the present invention for solving the above problems is to install the air conditioner in the center of the vehicle, the duct formed in the outside air inlet eccentrically installed to one side of the case to improve the drainage of rain water, etc. In addition to facilitating the layout and design, and to improve the rigid design of the vehicle, and to provide a vehicle air conditioning apparatus that can reduce the noise in the cabin.

The present invention for achieving the above object is a duct formed in the air inlet and the air inlet spaced apart on one side and the first passage and the second passage formed; A conversion door installed at the branch point side of the first and second passages and controlling the internal and external air introduced through the external air inlet and the internal air inlet to selectively enter the first and second passages; A blower fan is installed to forcibly blow the air passing through the duct into the air conditioning case, and a blower is configured to include a motor for driving the blower fan, wherein the blower fan comprises a first blower fan and a second blower fan. In addition, the duct is installed in the center of the vehicle, the inner and outer air inlet is formed eccentrically to the passenger seat side in the air conditioning case, the blowing fan located farther from the inner and outer air inlet of the first and second blower fan is different It is characterized by a larger outer diameter than one.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The same parts as in the prior art are denoted by the same reference numerals, and repeated description thereof will be omitted.

3 is a plan sectional view showing a duct part in an outdoor air inflow mode in the air conditioner according to the first embodiment of the present invention.

As shown, the air conditioner (1) according to the present invention is a case 10 having an air flow passage (15) therein is coupled to the first and second case members 11, 12 of the separated form, A blowing unit 100 eccentrically installed in the first case member 11 to selectively introduce internal and external air into the air flow passage 15, an evaporator 2 sequentially installed in the case 10, and To guide the air introduced by the heater core 3 and the blower unit 100 and selectively passed through the evaporator 2 and the heater core 3 to the discharge part 15b of the case 10. It consists of a plurality of mode doors 14 to be mounted.

Here, the temperature control door 13 is installed at the rear side of the evaporator 2 to adjust the amount of air passing through the evaporator 2 toward the heater core 3 side.

In addition, the air blowing unit 100 is separated from the outside air inlet 111 for inflowing the outside air and the inside air inlet 112 for introducing the internal air at a predetermined interval from the outside air inlet 111 and partitioning the inside. It consists of a duct 110 in which a first passage 115 and a second passage 116 are formed in communication with the air flow passage 15 by a wall 114.

In addition, the switch door 113 is rotatably installed at the branch point side of the first passage 115 and the second passage 116 so that internal and outdoor air flowing through the outside air inlet 111 and the inside air inlet 112 may be provided. The control is to selectively flow into the first and second passages (115, 116).

In addition, a blower 120 is installed at the inlet part 15a of the case 10 to forcibly blow internal and external air passing through the first and second passages 115 and 116 to the air flow passage 15. Is done.

Here, the duct 110 may be selectively eccentrically installed in the first case member 11 or the second case member 12, but is preferably eccentrically installed toward the passenger seat due to a space problem of the driver's seat.

In addition, the blower 120 is driven by a motor 124 installed at the center of the inlet portion 15a of the case 10, and the first and second blower fans 122 are provided at both sides of the motor 124. 123 are respectively installed, and the first blowing fan 122 is installed to communicate with the first passage 115, and the second blowing fan 123 is installed to communicate with the second passage 116.

Here, the second blowing fan 123 located farther from the inner and outer air inlets 112 and 111 among the first and second blowing fans 122 and 123 may have an outer diameter greater than that of the first blowing fan 122. Larger is preferred.

That is, since the internal and outdoor air inlets 112 and 111 formed in the duct 110 are eccentric to one side with respect to the first and second blowing fans 122 and 123, the first and second blowing fans 122 When the 123 rotates at the same speed, the second blowing fan to solve the problem that a larger amount of air is sucked into the first blowing fan 122 close to the internal and external air inlets 112 and 111. By making the outer diameter of 123 larger than the first blower fan 122, the amount of air sucked into the first and second blower fans 122 and 123 is equalized, and the air is uniformly supplied to the air flow passage 15. It is to be distributed.

Next, the operation of the air conditioner 110 according to the present invention configured as described above will be described by dividing by mode.

First, in the outside air inflow mode, as shown in FIG. 3, the outside air introduced through the outside air inlet 111 is blocked by the switching door 113, and the first and second passages 115 ( Each of the air flows into the air flow passage 15 by the first and second blowing fans 122 and 123 while flowing into and flowing into the air. When the outside air flows into the air flow passage 15, the outside air passes through the evaporator 2 and the heater core 3, and in the process, the outside air is exchanged with cold air or warm air, thereby discharging the outlet part 15b of the case 10. By venting each of the vents 16, 17, 18 formed on the side into the vehicle interior, the interior is cooled and heated.

In addition, in the inflow mode (not shown), the switching door 113 opens the bet inlet 112 and blocks the passage communicating with the outside air inlet 111 so that the bet introduced through the bet inlet 112 is The air flows into the air flow passage 15 by the first and second blower fans 122 and 123 while flowing into the first and second passages 115 and 116. When the bet is introduced into the air flow passage 15, the bet passes through the evaporator 2 and the heater core 3. In this process, the bet is exchanged with cold air or warm air, and the discharge part 15b of the case 10 is changed. By venting each of the vents 16, 17, 18 formed on the side into the vehicle interior, the interior is cooled and heated.

Next, in the internal and external air separation mode (not shown), the switching door 113 is rotated to be positioned in the same line as the separation wall 114 to allow the inside of the duct 110 to have the first passage 115 and the second passage. The air inlet 111 is in communication with the second passage 116 and the internal air inlet 112 is in communication with the first passage 115.

Therefore, the internal and external air introduced through the internal and external air inlets 112 and 111 are separated into and flow into the first and second passages 115 and 116, respectively, and then the first and second blower fans 122 and 123 are flown. By the flow into the air flow path (15). When the internal and outdoor air flows into the air flow passage 15, the internal and outdoor air passes through the evaporator 2 and the heater core 3, and in this process, the heat exchanger is converted into cold air or warm air, thereby discharging the discharge part 15b of the case 10. By venting each of the vents 16, 17, 18 formed on the side into the vehicle interior, the interior is cooled and heated.

On the other hand, when the air separation unit of the air blowing unit 100 is applied to the air conditioning apparatus of the left and right independent control system in which the inside of the case 10 is divided into left and right, the dry fresh air is discharged to the driver's seat side and the bet is It may be discharged to the passenger seat side, when applied to the air conditioner of the two-layer air flow structure dry and fresh outside air may be discharged to the upper side of the driver and the bet may be discharged to the lower side of the driver. Accordingly, effectively preventing sexual intercourse on the vehicle windshield, as well as preventing drowsy driving of the driver, heating performance is also improved.

FIG. 4 is a plan sectional view showing a duct part in the air conditioning apparatus according to the second embodiment of the present invention. Only the configuration different from the above-described first embodiment will be described, and repeated description will be omitted.

As illustrated, the arrangement of the blower 120 is different from that of the first embodiment, so that in the first embodiment, the motor 124 is located at the center of the case 10 and the first side of the motor 124 is located on both sides. , 2 blowing fans 122 and 123 are respectively provided, but in the second embodiment, the motor 124 is installed on the side of the second case member 12 and the first and second sides of the motor 124. Blowing fans 122 and 123 are installed but the first blowing fan 122 is installed in communication with the first passage 115 and the second blowing fan 123 is installed in communication with the second passage 116. .

According to the vehicle blower unit of the present invention configured as described above, by installing the duct 110 formed with the internal and external air inlets 112 and 111 eccentrically to one side of the case 10 in the center of the vehicle in the related art. By solving the problem of having weak structure in the rigid design of the vehicle by the installed duct (30: conventional), the rigid design of the vehicle can be improved and the drainage of rain water flowing down the windshield can be smoothed. It is easy to arrange and design a wiper link device configured in the center of the vehicle.

In addition, as the internal and outdoor air inlets 112 and 111 formed eccentrically to one side of the duct 110 are located far from the engine, the noise of the engine is prevented from being transferred to the interior of the vehicle to the maximum, thereby reducing the noise in the vehicle interior. do.

As described above, the present invention has been described only in the case where the blower unit 100 is applied to the air conditioning apparatus of the center mounting type, but is not limited thereto. It is equally applicable to various types of air conditioners such as the air conditioner of the type.

According to the present invention, the air conditioner is installed in the center of the vehicle, the internal and external air inlet is formed in the duct eccentrically to one side of the case to improve the drainage of rainwater, etc. It is easy to arrange and design the wiper link device configured in the center of the vehicle.

As the internal and external air inlets are located far from the engine, the noise of the engine is prevented as much as possible to prevent the noise of the engine from being transferred to the interior of the vehicle.

Claims (4)

An outside air inlet 111 and an internal air inlet 112 spaced apart from one side, and a duct 110 having a first passage 115 and a second passage 116 formed therein; The first and second passages are installed to be rotatable at the branch points of the first and second passages 115 and 116 and control the internal and external air introduced through the external air inlet 111 and the internal air inlet 112. A conversion door 113 selectively flowing into the 115 and 116; Including a blower 120 composed of a blowing fan 121 and a motor 124 for driving the blowing fan 121 is installed to forcibly blow the air passing through the duct 110 into the air conditioning case (10) But The blowing fan 121 is composed of a first blowing fan 122 and the second blowing fan 123 and is installed in the center of the vehicle, The duct 110 formed with the internal and external air inlets 111 and 112 is eccentrically installed toward the passenger seat side in the air conditioning case 10, The blower fan 123 located farther from the inner and outer air inlets 112 and 111 of the first and second blower fans 122 and 123 has a larger outer diameter than the other one. . The air blowing unit of claim 1, wherein a separation wall (114) is formed in the duct (110) to partition the first passageway (115) and the second passageway (116). delete delete

Images