KR100842210B1 - Blower unit and air conditioner using the same - Google Patents

Abstract

According to the invention, the conversion door for controlling the opening degree of the inlet, the outside air inlet; A blower unit and air using the same; installed in the lower portion of the conversion door to filter the internal and external air flowing in, and a partition means is provided to separate the internal and external air when the conversion door is turned to a predetermined position; The conditioner is disclosed. According to the disclosed blower unit and the air conditioner using the same, the air conditioner can be made compact and the manufacturing cost can be reduced because the air flow of the second layer can be easily created by using the partitioning means provided in the switching door and the filter. .

Description

Blower unit and air conditioner using same {Blower unit and air conditioner using the same}

1 is a cross-sectional view showing an air conditioner to which a conventional blower unit is applied;

2 is a cross-sectional view showing an operating state in a separation mode as an air conditioner to which a blower unit is applied according to an embodiment of the present invention;

3 is a cross-sectional view taken along line III-III of FIG.

4 and 5 are views showing various embodiments of the partition means according to the present invention.

 <Description of Symbols for Major Parts of Drawings>

100 ... blower unit 101, 102 ...

111,112 ... upper and lower blowing fan 120 ... scroll case

121,122 ... 1st, 2nd passage 130 ... Air guide duct

140 ... switch door 150 ... filter

150a ... recess 151,152 ...

153 ... Filter cover 200 ... Air conditioning case

201,202 ... upper and lower air passage 210 ... evaporator

220 Heater core 230 Separation wall                 

241 ~ 247 doors 251 ~ 253 vents

The present invention relates to a blower unit for an air conditioner and an air conditioner using the same, and more particularly, a two-layer air flow type air conditioner that separates or mixes internal air and external air and supplies it to an interior of an automobile. It relates to a blower unit for an air conditioner used to suck the inside or outside air and an air conditioner using the same.

In general, a vehicle air conditioner is a refrigerant compressed by a compressor driven by the power of the engine flows into the condenser, cooled by condensation by forced blowing of the cooling fan, condensed, and then flows back through the expansion valve and the evaporator to the compressor. In the process of the air blower unit of the blower unit or the outside air is exchanged with the refrigerant passing through the evaporator through the cooling air flows into the room to cool the interior of the car and the cooling water to cool the engine through the heater core In the process of returning to the engine is a device that includes a heating device for heating the interior of the vehicle by entering the interior in the warm state heat exchanged with the coolant passing through the heater core or the outside air blown by the blower fan of the blower unit.

Recently, in heating mode, not only can improve heating performance and defrosting performance, but also the bet is continuously discharged to the front of the occupant to separate or mix the bet and the outside air to solve the unpleasant feelings of the fresh air. The vehicle air conditioner of the two-floor air flow system that can be supplied to the interior of the vehicle has been adopted.

An example of an air conditioner in which a two-layer air flow system as described above is employed and a conventional blower unit is applied is shown in FIG. 1.

Referring to the drawings, a conventional air conditioner includes an air conditioning case 20 in which an evaporator 21 and a heater core 22 are installed in and around an internal flow path, and an internal flow path of the air conditioning case 20 by sucking inside or outside air. The blower unit 10 to supply is provided.

The air conditioning case 20 is provided with a partition wall 23 for dividing the inner flow passage up and down to separate the upper air flow passage 20a and the lower air flow passage 20b. In addition, a defroster vent 28 for removing defrost of the car window by discharging cold or warm air toward the car window is discharged to the upper half of the vehicle interior at the exit end of the heater core 22. Thus, a face vent (29) for cooling and heating the room and a foot vent (30) for cooling and cooling the room are installed by discharging cold or warm air to the lower half of the vehicle interior. Doors 24, 25, 26, 27 for opening and closing the 29, 30 in accordance with a predetermined heating and cooling mode are provided.

The blower unit 10 is arranged up and down inside each other, the upper and lower blower fan 11, 12 for suctioning the inside and the outside air is installed, and wraps around the inlet end of the air conditioning case 20 In addition, the air guide duct 13 having the internal and external air inlets 10a and 10b through which the external air is inhaled, and the switching doors 14 for adjusting the opening degree of the internal and external air inlets 10a and 10b, respectively. 15).

In addition, between the upper and lower blower fans 11 and 12 and the evaporator 21, a filter 16 for filtering internal and external air sucked is provided, and the upper and lower parts of the filter 16 are provided inside. The partition 17 which divides the air flow path which flows into the filter 16 corresponding to the air flow paths 20a and 20b is provided.

However, in the conventional air conditioner as described above, the internal and external air inlets 10a and 10b are provided in order to separate the inside and outside air sucked in and supply them to the upper and lower air passages 20a and 20b. The upper and lower portions of the guide duct 13 are to be formed respectively, and the conversion doors 14 and 15 for adjusting the opening degree of the internal and outdoor air inlets 10a and 10b are separately provided. The opening degree of (14,15) should be controlled respectively.

Therefore, there is a problem that the structure of the blower unit 10 becomes complicated and enlarged, and the manufacturing cost increases.

The present invention has been made in view of the above problems, and provides a blower unit and an air conditioner using the same to improve the structure of the blower unit so that the structure of the blower unit can be made compact and easy to flow in two layers. There is this.

The blower unit for an air conditioner according to the present invention is capable of separating or mixing internal and external air, and a conversion door for controlling the opening degree of the internal and external air inlets; And a filter provided at a lower portion of the conversion door to filter internal and external air introduced therein, and partitioning means configured to separate internal and external air when the conversion door is swiveled to a predetermined position.

In addition, the air conditioner according to the present invention is provided with an evaporator and a heater core in the front and rear inside, the air conditioning case for partitioning the inside up and down by the separation wall to form an upper air passage and a lower air passage; Dividing means is provided to control the opening degree of the internal and external air inlet, and the internal and external air installed in the lower portion of the conversion door to filter the internal and external air and separate the internal and external air when the conversion door is turned to a predetermined position. And a blower unit including the filter.

Here, the partition means is preferably a partition wall which is installed to protrude to the and / or lower side of the filter and partitions the air flow path of the filter in two.

On the other hand, the partition means may be a groove formed in the filter corresponding to the turning path of the switch door so that the end of the switch door can be inserted.

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

2 is a cross-sectional view showing an air conditioner to which a blower unit is applied according to an embodiment of the present invention, FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2, and FIGS. 4 and 5 are partitioning means according to the present invention. Figures illustrating various embodiments of the present invention. 2 to 5 illustrate a separation mode in which the outside air and the inside air are separated and supplied to the upper and lower air flow paths 201 and 202. In addition, the outside air sucked by the blower unit 100 passes through the evaporator 210 and is discharged only to the defrost vent 252, and the bet sucked by the blower unit 100 passes through the evaporator 210 and the foot vent is discharged. The case where discharged only toward (253) is shown by way of example.

Referring to the drawings, the air conditioner according to a preferred embodiment of the present invention, the air conditioning case 200 and the evaporator 210 and the heater core 220 is installed in the internal passage of the internal air or outside air, and the internal air or the outdoor air It is provided with a blower unit 100 to suck and supply to the internal flow path of the air conditioning case 200.

The air conditioning case 200 is provided with a partition wall 230 for dividing an internal or external air flow path formed therein into an upper air flow path 201 and a lower air flow path 202. The outlet end of the air conditioning case 200 located behind the heater core 220 has a defrost vent 252 for removing frost from the car window by discharging cold or warm air toward the car window. A face vent 251 for cooling and heating the room by discharging to the upper half of the vehicle interior and a foot vent 253 for cooling and cooling the room by discharging cold or warm air to the lower half of the vehicle interior are installed. Doors 241, 242, 243, 244, 245, 246, 247 for controlling the opening and closing according to a predetermined heating and cooling mode is installed.

The blower unit 10 is rotated by a motor (M) to suck the internal and external air and are disposed up and down, and the upper and lower blowing fans 111 and 112, and the upper and lower blowing fans 111 and 112. ) Up and down, and the scroll case 120 surrounding the outer circumferential surface of the upper and lower blowing fans 111 and 112, and the air guide duct 130 surrounding the inlet end and the scroll case 120 of the air conditioning case 200. ). Here, the air guide duct 130 is the first passage 121 communicated with the upper blowing fan 111 and the second passage 122 communicated with the lower blowing fan 112 between the scroll case 120. To form. At the inlet end of the air guide duct 130, internal and external air inlets 101 and 102 are respectively formed to suck internal and external air.

In addition, the blower unit 100 is rotatably installed on the inner wall of the air guide duct 130, the switching door 140 for adjusting the opening degree of the internal and external air inlets 101, 102, and the switching door ( It is provided at the bottom of the 140 is provided with a filter 150 for filtering the internal and external air introduced. In addition, the filter 150 is provided with partition means for separating the internal and external air when the switching door 140 is turned to a predetermined position. On the other hand, reference numeral 153, which is not described, indicates a filter cover used when the filter 150 is inserted or disassembled into the air guide duct 130.

As shown in FIG. 3, the partition means may be a partition wall 151 installed to protrude toward the upper side of the filter 150 and partition the air flow path of the filter 150 into two.

In addition, the partition means, as shown in Figure 4, may be a partition wall 152 is installed to protrude to both the upper and lower sides of the filter 150 and partitions the air flow path of the filter 150 in two.

In addition, the partition means, as shown in Figure 5, the groove 150a formed in the filter 150 corresponding to the turning path of the switching door 140 so that the end of the switching door 140 can be inserted It may be.

When described in detail with reference to the accompanying drawings the operation of the blower unit and the air conditioner using the same according to an embodiment of the present invention configured as described above are as follows.                     

First, in the separation mode in which the blower unit 100 separates the inside and the outside air and supplies it to the air conditioning case 200, and separates the inside and the outside air and ejects it into the cabin, the switching door 140 is pivoted so that an end thereof is turned. Opposed to the upper end of the partition wall (151, 152), or is inserted into the groove (150a) formed in the peel tongue (150). Then, the switching door 140 and the partition walls 151 and 152 block the space between the first passage 121 and the second passage 122, so that the outside air introduced through the outside air inlet 102 is first passage 121. Inhaled through the upper blower 111, and the bet introduced through the bet inlet 101 is sucked into the lower blower 112 through the second passage (122).

Next, the outside air sucked into the upper blowing fan 111 through the first passage 121 is supplied to the upper air passage 201, and to the lower blowing fan 112 through the second passage 122. The sucked bet is supplied to the lower air passage 202.

Finally, the outside air and bet supplied separately to the upper air passage 201 and the lower air passage 202 pass through the evaporator 210 or the heater core 220 along the separated passage, respectively. The cold air or warm air generated in this way is discharged into the compartment through the vents 151, 152 and 153.

As described above, the blower unit according to the present invention and the air conditioner using the same, the blower unit and the air conditioner using the same because it can easily create a two-layer air flow using the partition means provided in the switching door and the filter. It can be compact and the manufacturing cost can be reduced.                     

Although the present invention has been described with reference to the embodiments illustrated in the accompanying drawings, it is merely an example, and those skilled in the art may realize various modifications and equivalent other embodiments therefrom. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (6)

In the blower unit for an air conditioner that can separate or mix the inside and outside air, A conversion door for controlling the opening degree of the internal and external air inlets; An air conditioner, comprising: a filter installed at the lower portion of the conversion door to filter the internal and external air introduced therein, and a partition means provided to separate the internal and external air when the conversion door is pivoted to a predetermined position; Blower unit for the device. The method of claim 1, And the partition means is a partition wall installed to protrude to the upper side or the lower side of the filter and divides the air flow path of the filter into two. The method of claim 1, The partition means is a blower unit for an air conditioner, characterized in that the groove formed in the filter corresponding to the turning path of the switching door so that the end of the switching door can be inserted. An air conditioning case having an evaporator and a heater core installed in the front and rear sides and partitioning the inside up and down by a separating wall to form an upper air passage and a lower air passage;  Dividing means is provided to control the opening degree of the internal and external air inlet, and the internal and external air installed in the lower portion of the conversion door to filter the internal and external air and separate the internal and external air when the conversion door is turned to a predetermined position. And a blower unit including a fitted filter. The method of claim 4, wherein And the partition means is a partition wall installed to protrude toward the upper side or the lower side of the filter and divides the air flow path of the filter into two. The method of claim 4, wherein And the dividing means is a groove formed in the filter corresponding to a turning path of the switching door so that an end portion of the switching door can be inserted.

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