JP2011247505A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner, which is configured such that the luminescence of a discharge electrode provided in an ion generator is made to be invisible from an air blowing port, and which can suppress the decrease in the amount of negative ions supplied into a room from the air blowing port.SOLUTION: The air conditioner has the ion generator 800 arranged in an air flow passage 500 connecting an air suction port to the air blowing port 400. The ion generator 800 includes the discharge electrode 821, a ground electrode and a housing part housing the discharge electrode 821 and the ground electrode, inside, and provided with an air inflow port 814 and an air outflow port 815. When the ion generator 800 is arranged so that the discharge electrode 821 is made to be invisible from the front side of the air blowing port 400, the air inflow port 814 faces the upstream side of the air flow passage 500.

Description

  The present invention relates to an air conditioner provided with ion generating means.

  In an air conditioner including a conventional outdoor unit and an indoor unit, the indoor unit includes an ion generating means, for example, a negative ion generator, and negative ions generated by the negative ion generator are supplied indoors. What makes space comfortable is known.

  As an air conditioner equipped with such a negative ion generator, an indoor heat exchanger and a blower fan are provided in the casing of the indoor unit, and an air suction port provided on the front and upper surfaces of the casing, There has been proposed one in which a negative ion generator is arranged on a rear wall that forms a part of an air flow path that connects to an air outlet provided below the front surface (see, for example, Patent Document 1).

  The negative ion generator described in Patent Document 1 includes a housing that forms an air flow passage connecting the air inlet and the air outlet, and a needle-like discharge electrode and a plate-like ground electrode in the housing. The discharge electrode and the ground electrode are arranged at a predetermined interval. The negative ion generator is configured such that when a high voltage is applied between the discharge electrode and the ground electrode, corona discharge occurs between the discharge electrode and the ground electrode, and negative ions are generated.

  The negative ion generator is disposed on the air outlet side of the rear wall so that the air flow passage is substantially parallel to the conditioned air blowing direction that has passed through the indoor heat exchanger. At times, conditioned air flows in from the air inflow path of the negative ion generator and out of the air outflow path. Accordingly, the negative ions generated by the negative ion generator are released to the air flow path together with the conditioned air passing through the negative ion generator, and conditioned air containing negative ions is supplied into the room from the air outlet. . The negative ions supplied to the room adhere to microorganisms such as mold and virus floating in the room and inactivate them.

  However, in Patent Document 1, the negative ion generator is arranged on the air outlet side of the rear wall forming a part of the air flow path so that the discharge electrode is along the direction of blowing the conditioned air, that is, the discharge electrode is indoors. It is arranged at a position that can be seen from. For this reason, when the indoor unit is operated in a dark room such as at bedtime, light emission from the discharge electrode due to corona discharge can be seen from the air outlet, which causes a problem in that the user in the room is uncomfortable.

  The above problems can be solved by arranging the negative ion generator laterally with respect to the rear wall so that the discharge electrode cannot be seen from the air outlet, but in this case, the following problems occur. End up.

  If the negative ion generator is placed sideways on the rear wall, the air flow passage of the negative ion generator will not be arranged along the direction of conditioned air blowing, so the amount of conditioned air passing through the negative ion generator will be greatly reduced. In addition, the rate at which the generated negative ions are released is greatly reduced. For this reason, negative ions are more likely to be electrically adsorbed to the negative ion generator, such as the housing of the negative ion generator and the rear wall of the indoor unit in the vicinity of the negative ion generator. There was a problem that the amount of negative ions supplied into the room may be reduced.

Japanese Patent Application Laid-Open No. 2003-042470 (page 2 to page 4, FIGS. 1 to 3)

  In view of the above problems, the present invention makes it possible to prevent light emitted from the discharge electrode provided in the ion generating means from being seen from the air outlet and to suppress a decrease in the amount of negative ions supplied from the air outlet into the room. It aims at providing the air conditioner which can be performed.

  In order to solve the above-mentioned problems, the invention according to claim 1 is an air conditioner in which ion generating means is arranged in an air flow path connecting an air suction port and an air outlet, wherein the ion generating means is A discharge electrode and a ground electrode; and a housing portion that accommodates the discharge electrode and the ground electrode therein and is provided with an air inlet and an air outlet, and the discharge electrode is not visible from the front of the air outlet. Thus, when the ion generating means is arranged, the air inflow port faces an upstream side of the air flow path.

  According to a second aspect of the present invention, in the first aspect of the present invention, the accommodating portion is formed in a rectangular parallelepiped shape, and the air outlet is disposed on a surface not facing the upstream side of the air flow path. .

  According to a third aspect of the present invention, in the second aspect of the present invention, the surface that does not face the upstream side of the air flow path is a surface parallel to the surface provided with the air inlet, and the air outlet is the air It arrange | positions so that it may not oppose an inflow port, It is characterized by the above-mentioned.

  According to the present invention, when the ion generating means is arranged in the air flow path connecting the air inlet and the air outlet of the air conditioner, the discharge electrode in the accommodating portion of the ion generating means cannot be seen from the air outlet. The ion generating means is provided with an air outlet in the accommodating portion of the ion generating means, and an air inlet is provided in the accommodating portion of the ion generating means so that the air inlet faces the upstream side of the air flow path. The emission of the discharge electrode provided can be prevented from being seen from the air outlet of the air conditioner, and the decrease in the amount of negative ions supplied from the air outlet of the air conditioner to the room can be suppressed.

It is the external appearance perspective view which abbreviate | omitted a part of up-down wind direction board which shows the indoor unit of the air conditioner by this invention. It is principal part sectional drawing which shows the indoor unit of the air conditioner by this invention. It is explanatory drawing which shows the negative ion generator by this invention, (A) is a top view, (B) is B arrow view shown to (A), (C) is C arrow view shown to (A), ( D) is an AA ′ cross-sectional view shown in FIG. It is A-A 'sectional drawing shown in FIG. It is the enlarged view to which the D section shown in FIG. 1 was expanded, and is a schematic diagram explaining the flow of the conditioned air around the negative ion generator and the negative ions.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the main body case 100 of the indoor unit in the air conditioner according to the present embodiment includes a base 110 that supports the heat exchanger 200 and the blower fan 300 and is fixed to an indoor wall surface, And a panel 120 attached to the base 110 so as to cover the exchanger 200.

  The base 110 has a substantially parallel installation surface 111 along the wall surface, and a pair of left and right support portions (not shown) are formed so as to project forward from both sides of the installation surface 111. The heat exchanger 200 and the blower fan 300 are supported between these support portions. The base 110 is provided with a drain groove 112 that receives condensate generated in the back side heat exchanger 220 described later, and a rear wall 113 that forms a part of an air flow path 500 described later.

  The panel 120 extends from the upper end portion of the base 110 toward the front so as to cover the back-side heat exchanger 220, and its front end extends downward so as to cover a front-side heat exchanger 210 described later. It is formed in an inverted L shape. An upper surface side air inlet 121 and a front side air inlet 122 for taking in indoor air into the main body case 100 are provided on the upper surface and the front surface of the panel 120. An air outlet 400 for blowing out air is provided.

  In front of the front air inlet 122, an open / close panel 600 that is supported by the panel 120 so as to be opened and closed and opens and closes the front air inlet 122 is provided.

  Between the lower end side of the panel 120 and the air outlet 400, a drain pan 130 for receiving condensed water generated in the front heat exchanger 210 is provided. The drain pan 130 is supported by being bridged between support portions (not shown) of the base 110. The drain van 130 is formed in a bowl shape having substantially the same width as that of the front heat exchanger 210, and the back surface thereof forms a front wall 131 that forms a part of the air channel 500 together with the rear wall 113 described above. Yes. In addition, the rear wall 113 and the front wall 131 are provided so as to face the air outlet 400, and the upper surface side air inlet 121, the front side air inlet 122, and the air channel 500 that connects the air outlet 400. Forming part.

  In front of the air outlet 400, the main body case 100 is supported so as to be openable and closable. A wind direction plate (not shown) is provided.

  Next, the internal configuration of the main body case 100 will be described. In the main body case 100, a filter 700, a heat exchanger 200, a blower fan 300, and a negative ion generator 800 that is an ion generation unit are arranged in this order from the upstream side to the downstream side of the air flow path 500. Yes.

  The filter 700 is formed of a synthetic resin material, and a net-like filter surface is integrally formed in a lattice-like frame so that it can be bent. The filter 700 is disposed between the upper surface side air inlet 121 and the front side air inlet 122 and the heat exchanger 200.

  The heat exchanger 200 is obtained by connecting a front-side heat exchanger 210 in which two heat exchanger units are connected up and down and a back-side heat exchanger 220 including one heat exchange unit in a substantially inverted V shape. . The front side heat exchanger 210 and the back side heat exchanger 220 are supported between support portions of the base 110 that are not shown.

  The blower fan 300 is a cross-flow fan, and is supported between support portions (not shown) of the base 110, similarly to the front-side heat exchanger 210 and the rear-side heat exchanger 220. Further, the blower fan 300 is rotated by driving a motor (not shown) connected to a rotation shaft fixed to the blower fan 300.

  When the above-described blower fan 300 is rotated, air is sucked into the indoor unit from the upper surface side air suction port 121 and the front side air suction port 122, and the air is removed through the filter 700, and then the heat exchanger 200. Thus, heat is exchanged with the refrigerant, and the temperature is adjusted to a predetermined temperature. This harmonized conditioned air is blown by the blower fan 300 to the air flow path 500 formed by the rear wall 113 and the front wall 131, and blown out from the air outlet 400 toward the room along the air flow path 500. The

  The negative ion generator 800 is disposed in an air channel 500 formed by the rear wall 113 and the front wall 131. Specifically, the negative ion generator 800 is arranged on the air outlet 400 side of the rear wall 113 so that the discharge electrode 821 cannot be seen when the air outlet 400 is viewed from the front as shown in FIG. The air inlet 814 provided on the side surface 818 of the accommodating portion 810 is fixed along the longitudinal direction of the air outlet 400 so as to face the upstream side of the air flow channel 500.

  Next, the configuration of the negative ion generator 800 will be described in detail. As shown in FIGS. 3A to 3D, the negative ion generator 800 includes a substantially rectangular parallelepiped housing portion 810 including an upper case 812 and a lower case 813. A substantially rectangular substrate 820 including a discharge electrode 821 and a ground electrode 822 is accommodated on the upper case 812 side along the longitudinal direction thereof. The accommodating portion 810 is provided with an air inflow port 814 and an air outflow port 815 so as to form an air flow passage 811. The air inflow port 814 is a substantially rectangular through hole that continuously penetrates the side surface 818 of the housing portion 810 in the longitudinal direction across the upper case 812 and the lower case 813. The air outlet 815 is a substantially rectangular through hole in which one end surface in the short direction of the housing portion 810 continuously penetrates the upper case 812 and the lower case 813.

  An attachment portion 816 for integrally attaching the negative ion generator 800 to the rear wall 113 is integrally formed on the lower case 813, which is the other end surface in the short side direction of the housing portion 810. A screw (not shown) is screwed into a screw hole formed in the rear wall 113 (not shown) via a screw hole 816a formed in the mounting portion 816, so that the negative ion generator 800 is connected to the rear wall. 113 is fixed.

  The substrate 820 accommodated in the accommodating portion 810 is attached between the air inlet 814 and the air outlet 815 by a pair of locking portions 817 on the upper case 812 side, and each of the discharge electrode 821 and the ground electrode 822. Is provided so that the front end of the front surface faces the air outlet 815.

  As shown in FIGS. 1 and 2, the accommodating portion 810 of the negative ion generator 800 configured as described above has a side surface 818 provided with an air inflow port 814 facing the blower fan 300 (of the air flow path 500. It is arranged on the rear wall 113 (facing upstream). By being arranged in this way, the end surface provided with the air outlet 815 is directed in the longitudinal direction of the air outlet 400 so that the air outlet 815 cannot be seen from the air outlet 400.

  The ground electrode 822 in the housing portion 810 is composed of a pair of plate-like patterns formed on both sides of the upper surface of the substrate 820, and a space in which the substrate 820 is notched is provided between the pair of plate-like patterns. The discharge electrode 821 in the housing portion 810 is a needle electrode mounted at the center of the upper surface of the substrate 820, and is arranged in the above-described notched space with a predetermined distance from the ground electrode 822. The discharge electrode 821 is connected to a DC high-voltage power supply (not shown) via a lead wire, and the ground electrode 822 is connected to a ground (not shown) via a lead wire.

  In the negative ion generator 800 configured as described above, when a high voltage, for example, a high voltage of 4 kV, is applied between the discharge electrode 821 and the ground electrode 822 by a DC high voltage power supply, the discharge electrode 821 and the ground electrode 822 are applied. Corona discharge accompanied by light emission occurs between them, and electrons emitted by the corona discharge combine with atoms and molecules in the air to generate negative ions.

  Next, how the negative ions generated by the negative ion generator 800 are blown into the room will be described with reference to FIG. 3D and FIG. When the indoor unit of the air conditioner starts operation, the blower fan 300 rotates and a high voltage is applied to the negative ion generator 800 disposed on the rear wall 113. The conditioned air that is sucked into the indoor unit by the rotation of the blower fan 300 and is heat-exchanged with the refrigerant in the heat exchanger 200 and harmonized to a predetermined temperature is blown to the air flow path 500.

  A part of the conditioned air that has been blown flows into the negative ion generator 800 from the air inlet 814 provided on the side surface 818 of the accommodating portion 810 of the negative ion generator 800. The conditioned air that has flowed in passes through the periphery of the discharge electrode 821 and the ground electrode 822 accommodated in the accommodating portion 810, and flows out from the air outlet 815 provided on the end face of the accommodating portion 810. The negative ions generated in the negative ion generator 800 are released from the air outlet 815 to the air flow path 500 along the flow of conditioned air that flows out.

  As a result, the negative ions released into the air flow channel 500 merge with the flow of the conditioned air that has been blown, and are blown out from the air outlet 400 into the room as conditioned air containing negative ions. Negative ions blown into the room together with conditioned air adhere to microorganisms such as mold and viruses floating in the room and inactivate them.

  According to the present embodiment described above, the negative ion generator 800 includes the substantially rectangular parallelepiped accommodating portion 810 that accommodates the discharge electrode 821 and the ground electrode 822, and the accommodating portion 810 is provided in the accommodating portion 810. An air inflow port 814 for inflow of conditioned air and an air outflow port 815 for outflow of conditioned air are provided.

  Further, the negative ion generator 800 includes a rear wall such that a side surface 818 having an air inlet 814 faces the upstream side of the blower fan 300, that is, the air channel 500, along the longitudinal direction of the air outlet 400. The end face provided with the air outlet 815 is arranged on the rear wall 113 in the longitudinal direction of the air outlet 400.

  Thereby, in the indoor unit in the air conditioner according to the present embodiment, when the air outlet 400 is viewed from the front of the indoor unit, the negative ion generator 800 is disposed sideways along the longitudinal direction of the air outlet 400. Therefore, the air outlet 815 is also disposed sideways.

  Therefore, since the discharge electrode 821 provided in the negative ion generator 800 cannot be seen from the front of the indoor unit, the light emission due to the corona discharge generated between the discharge electrode 21 and the ground electrode 822 is not seen from the air outlet 400, so It is possible not to give a sense of incongruity.

  Furthermore, since the negative ions generated by the negative ion generator 800 can be discharged from the air inlet 814 on the conditioned air flow that flows in from the air inlet 814 and flows out of the air outlet 815, the negative ions are discharged. The flow rate of the conditioned air passing through the accommodating portion 810 of the ion generator 800 is ensured, and the decrease in the amount of negative ions released from the air outlet 400 into the room can be suppressed.

  In the indoor unit of the air conditioner according to the present embodiment, the negative ion generator 800 is disposed on the rear wall 113 forming the air flow path 500, but the present invention is not limited to this. The negative ion generator 800 may be disposed on the front wall 131 that forms the air flow path 500. In this case, the present invention can be implemented by fixing to the front wall 131 such that the side surface 818 of the accommodating portion 810 of the negative ion generator 800 faces the upstream side of the air flow channel 500.

  Further, in the indoor unit of the air conditioner according to the present embodiment, the negative ion generator 800 is provided with the air outlet 815 on one end face of the accommodating portion 810, but the present invention is not limited to this. Instead, the air outlet 815 may be provided on a surface that does not face the upstream side of the air flow channel 500, for example, on the other end surface or upper surface of the accommodating portion 810. Furthermore, an air outlet 815 is provided on a side that does not face the upstream side of the air flow path 500 and that is parallel to the side 818 provided with the air inlet 814 so as not to face the air inlet 814. Also good.

  Further, in the indoor unit of the air conditioner according to the present embodiment, the negative ion generator 800 has the housing portion 810 formed in a substantially rectangular parallelepiped shape, but the present invention is not limited thereto. The accommodating part 81 may be formed in a cylindrical shape or a triangular prism shape, for example. In this case, the shape of the accommodating portion is such that when the negative ion generator is arranged in the air flow path, the discharge electrode cannot be seen when the air outlet is viewed from the front, and the air inlet is the air flow path. It only needs to face the upstream side.

  Further, in the indoor unit in the air conditioner according to the present embodiment, the negative ion generator 800 is configured such that the accommodating portion 810 including the air inlet 814 and the air outlet 815 is fixed to the rear wall 113. The present invention is not limited to this, and the accommodating portion 810 may be provided integrally with the rear wall 113 or the front wall 131. Further, the housing portion 810 may have an open bottom surface. When the housing portion 810 is fixed to the rear wall 113 or the front wall 131, the air inlet 814 and the air outlet 815 are formed. However, the same effect as the present invention can be obtained.

  Further, in the indoor unit of the air conditioner according to the present embodiment, the ion generating means is the negative ion generator 800, but the present invention is not limited to this, and the ion generating means is negative ions and positive ions. Even when the ion generator is configured to generate the above, the same effect as the present invention can be obtained.

DESCRIPTION OF SYMBOLS 100 Main body case 110 Base 111 Installation surface 112 Drain groove 113 Back wall 120 Panel 121 Upper surface side air inlet 122 Front side air inlet 130 Drain pan 131 Front wall 200 Heat exchanger 210 Front side heat exchanger 220 Back side heat exchanger 300 Blowing fan 400 Air outlet 410 Vertical airflow direction plate 500 Air flow path 600 Opening / closing panel 700 Filter 800 Negative ion generator 810 Housing portion 811 Air flow passage 812 Upper case 813 Lower case 814 Air inflow port 815 Air outflow port 816 Mounting portion 816a Screw Hole 817 Locking portion 818 Side surface 820 Substrate 821 Discharge electrode 822 Ground electrode

Claims (3)

An air conditioner in which an ion generating means is arranged in an air flow path connecting an air inlet and an air outlet,
The ion generating means is composed of a discharge electrode and a ground electrode, and a housing part that houses the discharge electrode and the ground electrode inside and has an air inlet and an air outlet.
An air conditioner characterized in that when the ion generating means is arranged so that the discharge electrode is not visible from the front of the air outlet, the air inlet faces the upstream side of the air flow path.   2. The air conditioner according to claim 1, wherein the housing portion is formed in a rectangular parallelepiped shape, and the air outlet is disposed on a surface not facing the upstream side of the air flow path.   The surface that does not face the upstream side of the air flow path is a surface parallel to the surface provided with the air inlet, and the air outlet is disposed so as not to face the air inlet. 2. The air conditioner according to 2.

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