JPS5922420Y2 - Dehumidifier full water prevention device - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a device for preventing a dehumidifier from being filled with water.

Conventionally, as a dehumidifier equipped with a water-filled prevention device, a type shown in FIG. 1 has been proposed.

In the figure, 1 is a dehumidifier housing, 2 is a condenser placed on the suction side of an air passage 3 provided in the upper part of the housing 1, 4 is a cooler placed in front of the condenser 2, and 5 is an air condenser. A blower is provided in the passage 3, 6 is a drain tank placed in the lower part of the housing 1, and 7 is a holding shaft 8 in the drain tank 6.
9 is a main switch for preventing flooding, which is linked to the float 7 and is attached to the float so as to be rotatable in the vertical direction.

In the dehumidifier configured as described above, the refrigerant compressed by a compressor (not shown) enters the condenser 2, is condensed, and then enters the cooler 4.

The refrigerant evaporated in the cooler 4 is returned to the compressor, and the same cycle is repeated thereafter.

When the humid air sucked into the air passage 3 by the operation of the blower 5 comes into contact with the cooler 4, the moisture in the air is turned into water droplets, and the water is led to the drain tank 6 and at the same time passes through the condenser 2. During this time, the air is heated and blown out into the room from the air outlet 1a.

On the other hand, when the drain tank 6 for storing drain becomes full of water, the main switch 9 is automatically turned off by the float 7 to prevent the drain tank 6 from overflowing.

Next, the above-mentioned flooding prevention mechanism will be explained in detail.

First, when one end of the float 7 is pushing the lever 9a of the main switch 9, the dehumidifier continues the dehumidifying operation.

As a result, moisture in the air is removed by the cooler 4, and the drain begins to be stored in the drain tank 6.

When the drain accumulates in the drain tank 6 to a certain level, the float 7 begins to rise and finally comes off the lever 9a of the main switch 9, cutting off the main circuit and stopping the dehumidifying operation.

At this time, the float 7 is rotated in the upward direction using the holding shaft 8 as a fulcrum, but when inserting the empty drain tank 6 into the dehumidifier body, if it is pushed in with strong force, the impact There was a risk that the float 7 would be rotated upward by the force and come off the lever 9a of the main switch 9, turning off the main switch 9.

Conventionally, a guide plate and a bottomed cylindrical body are fixed to a drain tank with screws, and the cylindrical body and a float fitted therein so as to be movable in the vertical direction are inserted into the drain tank, and the upper end of the cylindrical body is inserted into the drain tank. There is also a known one in which the float is communicated with the inside of the drain tank through a hole, and the operating rod protruding above the float faces a main switch placed above the drain tank, so that the main switch is operated when the float rises. It is being

However, this flood prevention device has a complicated structure and is expensive.
Additionally, there was a risk of chattering occurring when the drain tank vibrated up and down.

Further, in both conventional systems, it is troublesome to attach and detach the float to and from the drain tank, and as a result, it is difficult to clean the inside of the drain tank.

This idea was made in order to eliminate the above-mentioned drawbacks of the conventional method, and even if the impact force that occurs when the drain tank is inserted into the dehumidifier body acts on the float, the main switch remains connected to the float. The float can operate stably and reliably without being turned on unnecessarily, has a simple structure with a small number of parts, and is inexpensive. It is also easy to attach and detach the float to the drain tank, making it easy to clean the inside of the drain tank. The purpose of the present invention is to provide a device for preventing a dehumidifier from becoming full of water.

An embodiment of this invention will be described below with reference to FIGS. 2 and 3.

FIG. 2 shows a cross-sectional view of a dehumidifier equipped with a water-filled prevention device according to this invention, where 10 is a dehumidifier housing, 11
1 is a blower installed in the upper part of the housing 10, and the discharge side of the casing 11a is communicated with the air outlet 12 provided in the housing 10, and the suction side is equipped with a cooler and a condenser (not shown) as shown in FIG. It is arranged in the same way as the case.

13 is a drain receiver provided in the housing 10, and a drain tank 14 is removably inserted into the housing 10 located below the drain receiver 13. A rectangular box-shaped float 15 is attached so as to be movable up and down.

As a means for holding the float 15 in a vertically movable manner within the drain tank 14, as shown in FIG. The main part is concave guide grooves 17.17 formed on the left and right outer walls of the float 15 so as to slidably engage with the ribs 16, 16, respectively. is a convex portion 1 for regulating the rise of the float 15 above a certain level and for preventing the float 15 from shaking.
8.18 is formed on the lower end side of the guide groove 17.17, as shown in FIG. A float rise regulating portion 19.19 is formed to reduce the width of the guide groove 17.17 and has elasticity and is hooked to the convex portion 18.18 of the ribs 16, 16. Convex portions 20 are provided at the upper portions of the guide grooves 17.17 to prevent the float 15 from wobbling by slidingly contacting the bottom surfaces of the guide grooves 17.17.

Further, a switch operation piece 21 is provided at the center of the upper edge of the float 15 and extends horizontally to the rear. 22 levers 22H
It should be engaged with.

Furthermore, a rib 23 is provided on the front outer side wall of the float 15 to prevent it from being attached.

24 is a compressor installed within the housing 10.

Therefore, when setting the float 15 in the drain tank 14, attach the guide ribs 16° 16 of the drain tank 14,
The float 15 is built into the drain tank 14 by engaging the guide grooves 17 and 17 of the float 15 with the attachment prevention rib 23 facing the front side.

At this time, the rise regulating portion 19.19 is located below the rib convex portion 18.18.

Float 1 set in drain tank 14
5 is moved up and down as the drain in the drain tank 14 increases and decreases, and accordingly, the operating piece 21 of the float 15 turns the main switch 22 ON-OFF via the switch lever 22a.
make it work.

That is, when the amount of drain in the drain tank 14 is small, the float 15 is lowered, so the operation piece 21 of the float 15 holds the switch lever 22a in the pressed state and turns on the main switch 22 to perform dehumidification operation. continue.

Further, when the amount of drain in the drain tank 14 reaches the full water level, the float 15 rises, and finally the operating piece 21 of the float 15 comes off from the switch lever 22a.

Therefore, the main switch 22 is turned off instantly, and at the same time the dehumidifying operation is stopped, the switch lever 22a, which has been released once, is turned off.
enters the lower surface side of the operation piece 21 of the float 15 and prevents the main switch 22 from operating again.

In this state, the drain tank 14 filled with water is pulled out from the dehumidifier main body, the drain in the drain tank 14 is discarded, and then the empty drain tank 14 is inserted into the dehumidifier main body again.

At this time, even if the drain tank 14 is pushed in with strong force, the guide ribs 16 and 16 of the drain tank 14 and the float 1
Since the guide grooves 17 and 17 of 5 are perpendicular to the insertion direction, the float 15 is lifted up by the impact force at the time of insertion, and the operating piece 21 of the float 15 touches the lever 22 of the main switch 22.
It is securely held in the engaged state without coming off from a.

Furthermore, the float 15 has a convex portion 2 for preventing shaking.
0 and the convex part for preventing rattling of the drain tank 14 18°18
are in sliding contact with the upper surface of the bottom convex portion 20 of the guide groove 17.17 at two locations, so that the float 15
There is little error in the operation, and even if the float 15 rises as the drain level rises, the rise regulating part 19.19 is hooked to the convex part 18°18 of the drain tank 14, so that the float 15 rises above a certain level. will be regulated.

As explained above, this invention provides guide ribs that extend vertically on the inner surfaces of the opposing left and right walls of the drain tank, and allows slides to slide vertically on the guide ribs on the outer surfaces of the left and right side walls of the float. In addition to forming a guide groove for engagement, a switch operation piece is protruded from the rear of the upper end of the float, and a main switch lever installed outside the drain tank behind the switch operation piece is brought into pressure contact with this operation piece. The switch operating piece is removed from the lever of the main switch, and the lever is inserted into the lower surface of the switch operating piece, so the following effects can be obtained.

In other words, according to this invention, the guide mechanism for sliding the float in the vertical direction is formed by the engagement of the guide ribs of the drain tank and the guide groove of the float, so separate parts other than the drain tank and float are not required. In addition, the float can be easily attached and detached from the drain tank, and the inside of the drain tank can be cleaned easily.

Furthermore, this invention can eliminate the disadvantage of the conventional device shown in Fig. 1 that the float floats even if an impact force is applied to the float when inserting the drain tank into the dehumidifier body.
This eliminates the risk of the switch operating piece and the main switch lever becoming unintentionally disengaged, and unlike conventional devices in which a float is fitted into a drain tank, which may cause chattering due to the vertical vibration of the drain tank, when the float rises, Since the switch operation piece is removed from the main switch lever and the lever is placed on the bottom side of the switch operation piece, it is possible to reliably prevent the main switch from operating due to chattering, and it is possible to prevent the main switch from operating due to chattering. Compared to the case where the float is rotated vertically into the drain tank using a holding shaft, the height of the engagement between the switch operation piece and the lever can be increased, so there is no risk of them coming off unnecessarily, and the main switch can be operated stably. Able to operate reliably.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a conventional dehumidifier with a water-filling prevention mechanism, Fig. 2 is a longitudinal sectional view of a dehumidifier equipped with a water-filling prevention device according to this invention, and Fig. 3 is a perspective view of a drain tank and a float in this invention. FIG. 4 is an enlarged side view of the IV section in FIG. 3.

Claims (3)

[Scope of utility model registration request] (1) A drain tank 14 that is removably inserted into the dehumidifier body and a float 15 that is built into this drain tank.
and the main switch 2 operated by this float 15.
2, the drain tank 14 has guide ribs 16, 16 integrally provided on the inner surfaces of the opposite left and right walls thereof extending in the vertical direction, and the float 15
Guide grooves 17, 17 are formed on the outer surfaces of the left and right side walls of the float 15 to be slidably engaged with the guide ribs 16, 16 in the vertical direction, respectively, and a switch operation piece 21 is protruded from the rear of the upper end of the float 15. The lever 22a of the main switch 22 arranged behind the switch operation piece 21 outside the drain tank 14 is brought into pressure contact with the piece 21, and when the float 15 rises, the switch operation piece 21 comes off from the lever 22a, and the lever 22a becomes the switch operation piece. 21. A device for preventing a dehumidifier from being filled with water, characterized in that it can be inserted into the bottom side. (2) The guide ribs 16, 16 have a convex part 18.18 formed in a part thereof, which is higher than the other part of the guide rib 16, 16, and the guide groove 17, 17 forms the lower end of these side walls. The guide groove 17°17 extends inward from the bottom of the float 15.
A dehumidifier filled with water according to claim 1, which is curved with elasticity so as to be compressed, and is hooked to the convex portions 18, 18 of the guide ribs 16, 16. Prevention device. (3) A guide rib 16 is provided at the upper end of the guide groove 17.17.
Utility model registration claim 2, which is provided with convex portions 20, 20 formed at the lower end of ゜16 with convex portions 18 and 18 slidingly in contact with each other.
Dehumidifier full-water prevention device as described in section.