JPH0517528Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a local air conditioner installed on a desk in an office or the like.

(Prior art) Air conditioning in general offices involves installing a large air conditioner in the machine room of a building, and blowing hot or cold air through ceiling ducts from outlets placed at required locations in the room. This was done by circulating hot or cold air by returning it to the air conditioner through the inlet.

(Problems to be Solved by the Invention) In the conventional air conditioner, warm air stagnates in the upper part of the room during heating, resulting in a low temperature region near the floor, making the head hot and the feet cold.

Also, when cooling the room, the cold air stays in the lower layers of the room, making your feet cold.

The present invention has been proposed in view of the problems of the prior art described above, and its purpose is to provide a local air conditioner that has a simple structure and that cools the head and warms the feet.

(Means for Solving the Problems) In order to achieve the above object, the local air conditioner according to the present invention includes an air intake port at the end of the vertical rear plate disposed at the bottom of the rear end of the desk top plate. a lower horizontal intake duct extending from side to side, and a vertical cold air duct that communicates with the back side of the intake duct and has an air outlet at its upper end; A front side heat dissipation surface is provided, a heat absorption fin arranged on the back side heat absorption surface faces into the vertical cold air duct, and a cold air fan is arranged within the cold air duct.

(Function) Since the local air conditioner according to the present invention is configured as described above, when the heating element is energized, the temperature of the front side heat dissipation surface of the heating element rises and is warmed by radiant heat.

On the other hand, the temperature of the heat-absorbing fins disposed on the back-side heat-absorbing surface of the thermal element decreases.

Indoor air is sucked into the horizontal intake duct by the cold air fan in the vertical cold air duct from the end suction port, is cooled by the heat absorption fins of the heat element, and then passes through the upper end outlet of the cold air duct. Cooler air is blown above the top plate.

(Example) The present invention will be described below with reference to the illustrated embodiments.

1 is a top plate of a desk installed in an office, 2 is a vertical rear plate installed at the rear end of the top plate 1, and a lower horizontal intake duct 3 having suction ports 3a at both left and right ends at the bottom thereof. The duct 3 is connected to a vertical cold air duct 4 provided on the vertical rear plate 2 and having an air outlet 4a at the upper end at the rear surface of the central portion.

A thermal element 5 having a Peltier effect is disposed at the center of the horizontal intake duct 3 intersecting with the vertical cold air duct 4, and the front heat dissipation surface 5a of the thermal element 5 is disposed on the back side of the thermal element 5. The heat absorption fins 5b arranged on the heat absorption surface face the inside of the cold air duct 4, and the cold air duct 4 has a built-in cold air fan 6.

The thermal element 5 can be constructed by, for example, joining a p-type semiconductor and an n-type semiconductor via an electrode plate, attaching a heat absorbing fin 5b to the electrode plate, and connecting it to a DC power source to cause a current to flow through the electrode plate. Accordingly, the semiconductor junction portion is configured to be cooled or heated.

Since the illustrated embodiment is configured as described above, the heating element 5 is energized, the cold air fan 6 is operated, and indoor air is sucked into the lower horizontal intake duct 3 of the vertical rear panel 2. 3a, the intake air is disposed on the heat absorption side of the back surface of the thermal element 5, is cooled by the heat absorption fin 5b which has become low temperature, passes through the vertical cold air duct 4, and is sent to the ceiling from the upper end outlet 4a. It is blown out above the plate 1.

On the other hand, the indoor air sucked into the air intake duct 3 is heated by the front side heat radiation surface 5a of the heating element 5 whose temperature has increased, and this becomes radiant heat, thus forming a comfortable heating device that keeps your head cold and your feet warm.

(Effects of the invention) According to the invention, as described above, the horizontal intake duct and the vertical cold air duct with a built-in cooling fan are arranged on the vertical rear panel at the bottom of the rear end of the desk top so that they intersect and communicate with each other. The heat absorption fins arranged on the back side heat absorption surface of the Peltier effect thermal element built into the horizontal intake duct are exposed to the vertical cold air duct, and the front side heat dissipation surface is exposed. Cold or warm air is blown above the board, and radiant heat is radiated to the feet, creating a head-cooling and foot-heating type of heating and cooling.No cold or hot water, refrigerant, etc. are required, and each desk can be comfortably heated by just powering the heating element. Provides a thermal environment.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of a local air conditioner according to the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a view taken in the direction of the arrow in FIG. 1. DESCRIPTION OF SYMBOLS 1... Top plate, 2... Vertical rear plate, 3... Horizontal intake duct, 3a... Inlet, 4... Vertical cold air duct, 4a... Outlet, 5... Thermal element having Peltier effect, 5a ... Heat radiation surface, 5b ... Heat absorption fin, 6 ... Cool air fan.

Claims (1)

[Scope of utility model registration request] On the vertical rear plate located at the bottom of the rear end of the desk top plate,
A lower horizontal intake duct extending from side to side having an intake port at the end, and a vertical cold air duct communicating with the back side of the intake duct and having a blowout port at the upper end are provided, and a heating element having a Peltier effect is installed in the horizontal intake duct. A heat dissipation surface on the front side of the heat generating element is built in, a heat absorption fin arranged on the heat absorption surface on the back side faces into the vertical cold air duct, and a cold air fan is arranged in the cold air duct. A local air conditioner featuring: