JPS58652B2 - Temperature controller for air conditioning - Google Patents

Description

[Detailed description of the invention] The present invention relates to a temperature controller for air conditioning.

The present invention relates to a setting device capable of obtaining a variable set value that can be easily adjusted within a predetermined range from a fixed set value with simple operation and without loss of accuracy.

The present invention is a setting device that can easily operate different temperature setting values according to conditions such as day and night, summer and winter, and when upper and lower limits of a predetermined width are set, temperature settings can be made within the range of the limit width. This relates to a temperature controller that has a fixed temperature setting when the limit width is set to zero.

In air conditioning, the air temperature to be conditioned is often adjusted to different conditions, for example, during the day and at night.

If you want to adjust the temperature to 21°C at one time and 26°C to 19°C at another time, with conventional equipment you have to set the pointer to the setting scale one by one. It won't happen.

Particularly when the room is dark, such as when sleeping, it is cumbersome to set the settings one by one, and it is often impossible to obtain appropriate setting values.

The present invention allows the temperature to be set within a desired range, e.g. 26°C to 19°C.
If you want to set the upper and lower limits to 19 degrees Celsius while sleeping, you can easily set the temperature by simply rotating the dial to the lower limit.

Examples of the present invention will be described below.

In FIG. 1, a dial 1 is provided with an engaging part 11 such as a knurling around its periphery.The dial 1 is fixed to a support shaft 2 at its center, and furthermore, the support shaft 2 has an upper and lower setting piece 3.
, 4 is pivoted so that it can rotate when operated.

Reference numeral 6 denotes a scale plate through which a setting indicator 13 provided on the dial 1 can be observed from the top.

FIG. 5 shows a developed perspective view of the dial 1, the setting pieces 3, 4, and the support shaft 2. The head 22 of the support shaft 2 is fitted into the center hole of the dial 1 and fixed by caulking or the like.

The setting pieces 3 and 4 have almost the same shape, and the center hole 32 or 42 of the ring portion 31 or 41 on one end side is both fitted into the head 22 of the support shaft 2.

The protrusions 33 and 34 at the other end are configured to fit into the knurling 11, and when the stepped portions 34 and 44 abut against the stopper, the rotation of the dial 1 is stopped at the stopper position.

The entire setting pieces 3 and 4 are formed by punching out a single sheet of metal, and the entire structure is elastic. For example, when the end portion 35 or 45 is lightly pressed with a finger, the protruding piece 33 or 43 will come off the knurling 11, or It is configured so that it can be reattached when the finger is released.

The lower part of the support shaft 2 is formed into a screw groove 21, etc., and is inserted into a screw groove similarly provided in the fixing base 5, so that the support shaft 2 can rotate along the screw groove.

In FIG. 6, the support shaft 2 has a threaded groove cut in its internal hole, and a bottom portion 25 of the support shaft 2 is formed by a screw 23. As shown in FIG.

The screw 23 is configured to be screwed into the inner hole 24 of the support shaft 2 so that the height of the bottom part can be adjusted and the degree to which it is screwed into the inner hole 24 of the support shaft 2 can be adjusted.

In FIG. 3, a stopper 8 is shown protruding from the fixing base 5. The step 44 of the setting piece 4 abuts against the stopper 8, and the protruding piece 43 is engaged with the knurling 11. There is.

The support shaft 2 passes through the fixed base 5 and comes into pressure contact with the dual diaphragm 9.

The dual diaphragm 9 is composed of two plate-shaped flexible plates stacked one on top of the other, and a temperature-sensitive expandable substance such as Freon gas is sealed inside.

When the dual diaphragm 9 changes its bulge due to expansion or contraction depending on the ambient temperature, the lever 92 of the switch 91 located below operates the button 93 to operate the switch 91.

FIG. 1 shows a case where the set value is desired to be a certain fixed value.

First, by lightly pressing both ends 35 and 45 of the setting pieces 3 and 4 with fingers, the dial 1 becomes rotatable.

Next, the dial 1 is rotated until the indicator 13 matches the set scale value on the scale plate 6.

For example, in the illustration, the set value is approximately 21°C.

Next, move the setting pieces 3 and 4 to a position where they sandwich the stopper 8 from both sides, and release your fingers at this position.
3 are bitten into the knurls 11, and the dial 1 cannot be rotated in either direction, clockwise or counterclockwise.

FIG. 4 shows a case where the set value is desired to be within a certain range.

For example, if you want to obtain a variable set value in the range of 19 to 26 degrees Celsius, lightly press the ends 35, 45 of the inner setting piece with your fingers so that the dial 1 can rotate, then set the setting index 1.
At this position, the dial 1 is rotated so that the dial 1 is aligned with the scale 26° C., and the setting piece 4 is moved to a contact position with the stopper 8, and at that position, the finger is released, and the protruding piece 43 is inserted into the knurling 11.

Next, dial 1 until setting index 13 is set to 19℃.
is rotated in the opposite direction. At this time, the setting piece 3 is set against the stopper 8.
At this position, release the finger and insert the protruding piece 33 into the knurling.

In this way, the setting pieces 3 and 4 will be set at 19 to 26 on the scale 62.
It is open to an angular range of degrees Celsius, and the dial 1 can be rotated by this angle.

Therefore, the dial 1 can be variably adjusted within the range of 19°C to 26°C.

If you want to set a specific temperature during a certain time period, set the set value to a fixed value as shown in Figure 1, and then set the set value to a variable value during another time period. gives an opening angle to the setting pieces 3 and 4 as shown in FIG.

In the state shown in Figure 4, the setting value can be adjusted within the range of the setting width, so for example, if you select the setting width from 26 to 19 degrees Celsius, the upper limit value is initially set to 26 degrees Celsius, and when sleeping, etc., the setting value is set to 19 degrees Celsius.
Setting the temperature to the lower limit of degrees Celsius is extremely easy, as all you have to do is turn the dial toward the upper or lower limit without checking the setting scale each time.

Referring to Figure 3, when dial 1 is rotated, dial 1
The supporting shaft 2, which rotates along with the fixing base 5, rotates along the screw groove and changes its vertical position as it rotates.

After the bottom portion 25 of the support shaft 2 shown in FIG. 6 has been properly adjusted with a screw 23, the screw 23 is fixed in a screw hole 24 with glue or the like.

The bottom portion 25 having an adjusted height position presses against the receiving portion 94 of the dual diaphragm 9 .

The dual diaphragm 9 is in pressure contact with the lever 92,
Since the position of the switch 91 is fixed on the fixed base 5, when the dial 1 rotates, the bottom part 25 of the support shaft 2 is displaced in its positional relationship with the diaphragm 9.

The dual diaphragm 9 expands or contracts according to the ambient temperature and imparts its displacement to the lever 92.

The dual diaphragm 9 is in pressure contact with the bottom 25 of the support shaft 2 on the upper side, and on the lever 92 on the lower side, and is supported so as to be clamped from both sides, so that when the dial 1 is rotated, the dual diaphragm 9 also rotates. obtain.

In other words, the dual diaphragm 9 is only held in pressure contact from above and below, and its position is not fixed by any other support.
Expansion and contraction of the dual diaphragm 9 is not restricted by fixed supports.

When the positional relationship between the response switch 91 and the bottom 25 of the support shaft 2 is adjusted by rotating the dial 1 to be appropriate for the set value, the dual diaphragm 9 expands and contracts depending on the ambient temperature. The displacement is applied to a lever 92, and when the set value is reached, the switch 91 opens and closes to operate a control device such as a refrigerator.

As described above, according to the present invention, it is possible to fix the set value or to easily determine the adjustment range of the set value depending on the state, and it is possible to set the set value according to the capacity of the control equipment or the number of units in operation. This makes it possible to perform appropriate control, and it is extremely convenient because the upper or lower limit set value can be obtained without checking the setting scale every time.

[Brief explanation of drawings]

The figures show an embodiment of the present invention; FIGS. 1 to 3 show the case where a fixed set value is obtained, and FIG. 4 shows the case where a variable set value is obtained. 1 is a plan view, FIG. 2 is a side view, FIG. 3 is a front view, and FIG. 4 is a plan view. FIG. 5 is a perspective view of the main part, and FIG. 6 is a front sectional view of the support shaft. 1...Dial, 11...Knurl, 13...Setting index, 2...Spindle, 2
1...Screw groove, 3.4...Limit setting piece, 5...Fixing base, 6...Scale plate, 8... Stopper, 9...Dual diaphragm, 91...Response switch.

Claims (1)

[Claims] 1. A dial is rotatably supported on a fixed base, and the dial is rotatably mounted coaxially with the dial in a regulator that changes a set value in accordance with rotation, The dial includes protrusions arranged in the rotational direction of the dial that bite into the engaging portion by its own elastic force, and an end portion from which the protrusions detach from the engaging portion when pushed against the elastic force. A temperature regulator for air conditioning, comprising an upper and lower limit value setting piece, and a stopper that projects from the fixed base and limits rotation of the setting piece.