JP2003042644A - Deep freezer refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that, in a conventional deep freezer refrigerator, when black light and a glass pipe type lamp, such as a cold cathode pipe, is used as a light source, the light source is increased in size, limitation of an installation space is also needed, development of a deodorizing device to other chamber of the refrigerator is impossible to make and further, solve a problem that no care is paid to injury of food due to breakage of the part of the deodorizing device. SOLUTION: The deep freezer and refrigerator is provided with the deodorizing device consisting of a filter where a photo catalyst is blended; and a light emitting device where a light source forms a LED and the LED is mounted on a substrate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator and a refrigerator,
In particular, the present invention relates to a freezer-refrigerator provided with a deodorizing device for deodorizing the inside of a refrigerator.

[0002]

2. Description of the Related Art FIG. 28 shows, for example, Japanese Patent Laid-Open No. 2000-2494.
It is a principal part perspective view of the refrigerator-freezer disclosed by the 60th publication. FIG. 29 is a sectional view of the photocatalytic means, and FIG. 30 is a sectional view showing an ice making chamber of the refrigerator. In the figure, 1 is a freezer-refrigerator main body, 2 is a box-shaped ice making chamber provided in the main body,
At the top of the ice making chamber, an ice making unit 3 for making ice is also provided.
At the bottom is an ice storage unit 4 that stores the ice made by the ice making unit 3.
Each has. The ice making section 3 is provided with an ice making tray 5 having a recess for holding water in a predetermined shape, and the ice storage section 4 is provided with an ice storage box 6 having an upper opening capable of receiving the ice blocks made by the ice making tray 5, and further. The photocatalyst means 7 is installed above the ice tray 5.

As shown in FIG. 29, the photocatalyst means 7 is provided with a photocatalyst 7b such as titanium (TiO ₂ ) on the surface of the light irradiation tube 7a.
It is a transparent or semi-transparent coating by the Sorge method or a fine particle suspension. Since ultraviolet light is effective as the irradiation light, it is preferable to use a black light as the light irradiation tube 7a of the photocatalytic means 7.

As another form, as shown in FIG. 30, a mirror or metal as the light reflecting member 8 is provided on the inner surface of the ice making section 3. It is also possible to perform metal plating, and by providing the light reflecting member 8, the reflected light of the light emitted from the photocatalyst means 7 is collected in the photocatalyst means 7, and the irradiation amount of the photocatalyst increases. The decomposition reaction is accelerated.

FIG. 31 shows, for example, Japanese Patent Laid-Open No. 9-6104.
Part of the embodiment disclosed in No. 2 shows the structure of a glass tube heater for defrosting, in which 28 is a glass tube and 29 is a glass tube.
Is a heater wire and 30 is a deodorant paint. As shown in the figure, this heater is attached to the lower part of the cooler for the purpose of defrosting the cooler.

[0006]

The conventional refrigerator-freezer has the following problems.
For example, when a glass tube type lamp such as a black light or a cold cathode tube is used as the light source as described above, the light source becomes large and the installation space also needs to be restricted.
There has been a problem that it becomes impossible to deploy and install it as a deodorizing means in other rooms of the refrigerator.

Further, since the light source is composed of a glass tube, it is necessary to take measures so as not to break it and to apply no stress after installation. In particular, when a fluorescent lamp is used as a light source, since mercury is used inside, using it around foods causes a problem when using a refrigerator, assuming a case of cracking.

Further, many of them use AC100V as an input voltage, and when an abnormality occurs in a refrigerator using an alternative refrigerant such as HC, an extremely serious problem may occur.

Further, a defroster-coated glass tube heater for defrosting cannot be mounted in the air passage because it is a heater.

Further, when the glass tube type lamp is broken when it is attached to the upper portion of the ice tray as in the conventional example, there is a possibility that glass fragments may be mixed into the ice, which greatly affects the human body. There is.

Further, when the photocatalyst is coated on the member forming the wall of the ice making chamber, for example, there is a problem that the process requires time and the drying time and the like.

The present invention has been made to solve the above problems, and aims to reduce the weight and size of the deodorizing means using a photocatalyst and to solve the problems when the deodorizing means is used in a refrigerator used around foods. In addition, the object is to provide a member such as a photocatalyst at low cost.

[0013]

The refrigerator-freezer of the present invention is equipped with a deodorizing device comprising a photocatalyst or a filter in which a photocatalyst and an adsorbent are mixed and a light emitting device having an LED for generating ultraviolet rays.

Further, the refrigerator-freezer of the present invention is equipped with a deodorizing device which is integrally provided with a filter and a light emitting device while keeping a predetermined distance.

Further, the refrigerator-freezer of the present invention is one in which the deodorizing device and the damper unit are integrally formed and mounted on the refrigerator.

Further, in the refrigerator-freezer of the present invention, the light emitting device is covered with a transparent case which transmits ultraviolet rays.

In the refrigerator according to the present invention, the transparent case has a drip-proof structure.

Further, in the refrigerator-freezer of the present invention, the transparent case has a lens portion made of a material that transmits ultraviolet rays.

Further, in the refrigerator-freezer of the present invention, the light emitting device is provided with the reflecting member around the LED.

Further, in the refrigerator-freezer of the present invention, the light emitting device is provided in a passage for exclusive use of cold air which has at least two temperature zones and one or more air volume regulators.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. 1 is a perspective view showing a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of the refrigerator showing a cold air flow, FIG. 3 is a perspective view showing a filter according to Embodiment 1 of the present invention, and FIG. 3 is a simplified explanatory view of the filter surface, FIG. 5 (a) is a detailed view of the filter surface adsorption component of FIG. 4, FIG. 5 (b) is a detailed view of the filter surface sintered particles of FIG. 4, and FIG. It is a perspective view which shows the light-emitting device which mounts (it calls LED).

In the figure, reference numeral 1 is a refrigerator body, which is a refrigerating room 9, a switching room 10, an ice making room 2, a vegetable room 11 and a freezing room 12.
It is divided into compartments. Reference numeral 13 denotes an air passage exclusively for cold air formed in the refrigerator main body 1, which communicates with the refrigerating compartment 9, the switching compartment 10, the ice making compartment 2, the vegetable compartment 11 and the freezing compartment 12 and also has a cooler 14 below. A cooling chamber 16 in which a blower 15 is arranged is provided above it. Reference numeral 17 denotes a filter disposed in the middle of this passage for exclusive use of cold air, which is formed by stacking a corrugated core 17a and a flat liner 17b as shown in FIG. The core 17a is, for example, as shown in FIG.
As shown in (a), zeolite 17c, manganese oxide 1
7d and an adsorbent 17f made of copper oxide 17e and a photocatalyst 7a such as titanium oxide 17g activated by ultraviolet rays, which is attached to a fibrous pulp material 17h for molding, and a zeolite 17c as shown in FIG. 5 (b). In some cases, particles of the photocatalyst 7a such as an adsorbent 17f made of manganese oxide 17d and copper oxide 17e and titanium oxide 17g activated by ultraviolet rays are formed by sintering, and stored in a refrigerator such as methyl mercaptan or trimethylamine. The zeolite 17c, the manganese oxide 17d, the copper oxide 17 so as to exhibit the ability to adsorb odorous components generated from foods
The adsorbent 18 made of e and the photocatalyst 7a such as titanium oxide 11f activated by ultraviolet rays are mixed, and the composition and composition are various.

Further, the filter 17 may be blended with a silver-based component having an antibacterial effect, or may be provided with pores having a size sufficient to have an effect of removing ethylene. Further, the size and surface area of the filter 17 may be selected according to the conditions of the environment in which it is used. Reference numeral 19 denotes a light emitting device composed of a substrate main body disposed above the filter 17 disposed in the middle of the passage for exclusive use of the cool air, which has a connecting lead wire 19a at one end, and an LED 19b for emitting a plurality of ultraviolet rays on the surface of the main body, and The Zener diode 19c for preventing static electricity is provided by mounting it in the form of a chip. Further, the same effect can be obtained when the light emitting device 19 is mounted as a discrete device which is provided by forming a hole in a substrate, inserting a lead, soldering and mounting.
Note that at least 1 LED is mounted on the light emitting device body.
If it is more than the number, the same effect is obtained.

FIG. 7 is a relative light distribution characteristic diagram showing the light emission data of the LED, and shows the relative intensity when the central light intensity is 100 with respect to the relative light distribution in the irradiation range in the XY directions. In FIG. 7, the solid line indicates the X-direction light distribution, and the dotted line indicates the Y-direction light distribution.

FIG. 8 is a perspective view showing an optical measuring device for measuring the relative light distribution characteristics of the LEDs. 20 is a measuring table, L
The ED 19b is mounted.

FIG. 9 shows an electric circuit diagram of the light emitting device, in which two LEDs 19b are connected in series to each other.
A zener diode 19c for static electricity prevention is connected in parallel with b, and DC 5V to 12V is applied to both ends of the lead wire 19a.
The LED 19b is caused to emit light by applying V and applying a current of about 10 mA to 20 mA. This LED
19b operates with 5V DC or 12V low voltage and has a wavelength of 380n
It emits ultraviolet rays in the vicinity of m and the current value is 10 m.
It is safe because the current value is small even when a plurality of devices are mounted depending on the required light intensity and irradiation range at about A to 20 mA. Although the LEDs provided in series have been described here, the same effect can be obtained by connecting the LEDs in parallel.

By disposing the filter 17 having the above-described structure in a part of the air passage in the refrigerator as shown in FIG. 2 so that the air in the refrigerator is hit, the odor component is adsorbed by the filter 17. , Odor is removed from the cold air in the refrigerator. Further, by disposing the LED 19b at a position where light can be emitted near the filter 17, the titanium oxide mixed in the filter 17 is divided into electrons (-) and holes (+) by ultraviolet rays, and active species (radicals) are generated. ) Is produced. The active species exerts an action of oxidizing and decomposing the floating odor component, and an action of decomposing the odor component adsorbed on the filter 17 by a redox reaction to extend the life of the filter 17.

The LED 19b may be energized continuously, but intermittent energization, such as synchronizing with the fan motor 15a, reduces the required life of the LED 19b and reduces the unit price. Further, it is possible to optionally turn on electricity by mounting a deodorizing SW that can be operated by the user in the refrigerator.

FIG. 10 is a simple control flow chart, in which the user operates S in step 101 while the refrigerator is operating.
It is determined whether W has been pressed, and in step 102 it is determined whether the fan motor is in the operating condition. Therefore, in this case, the LED is turned on only when the SW is pressed and the fan motor is in the driving condition.

Embodiment 2. 11 is a front view showing the deodorizing unit of the refrigerator according to the second embodiment, and FIG. 12 is a side view showing the deodorizing device of the refrigerator according to the second embodiment. In the figure, reference numeral 21 denotes a deodorizing device, in which a filter 17 is arranged and fixed on a lower portion of a pair of frame bodies 21a having an upper portion formed in a mountain shape, and both ends are fixed so that the LED 19b faces the surface of the filter 17 and emits light. A device 19 is provided.

By thus forming the light emitting device 19 compactly using the LED 19b, the degree of freedom in the arrangement of the refrigerator in the air passage is increased, and the filter 17 and the light emitting device 1 are provided.
The distance between the nine LEDs 19b can also be kept constant and stable accuracy can be obtained. In addition, handling at the time of material handling is improved, and even if the product is disassembled, it can be removed with the unit,
It also has an effect on recyclability.

Incidentally, the shape of the deodorizing device 21 is not fixed, and FIG. 11 shows an example in which the upper portion is mountain-shaped in order to reduce the air passage resistance, but as shown in FIG. Alternatively, the upper part may be tilted to one side.

As shown in FIG. 15, the light emitting device 19
LED 19b is mounted on both sides of the substrate, and the light emitting device 1
A configuration in which the filters 17 are arranged above and below 9 is also conceivable.
As a result, the filter 17 is arranged in the center and both surfaces of the filter 17 can be uniformly irradiated with ultraviolet rays, and the refresh rate of the filter 17 can be increased.

Embodiment 3. FIG. 17 is a front view showing a deodorizing device for a refrigerator according to the third embodiment, FIG. 18 is a side view showing a deodorizing device for a refrigerator according to the third embodiment, FIG. 19 is a perspective view of a damper unit, and FIG. It is sectional drawing of the refrigerator arrange | positioned in an air duct. In the figure, reference numeral 21 denotes a deodorizing device main body which is arranged in the cool air passage 13 of the refrigerator 1 by opening the cool air passage 21b.
Pair of fixing claws 21 for fixing the filter 17 so as to close the filter
c is provided, and the leg 21 extending upward on the end face of the main body
d is integrally provided. 22 is an LED on the top of this leg
A transparent case accommodating a light emitting device 19 provided with 19b is mounted so that the LED 19b of the light emitting device 19 is located downward. Reference numeral 23 is a damper unit that is normally arranged and used in the cool air passage 13 of the refrigerator 1, and includes a drive portion 23a having a built-in motor and a frame portion 23c having an opening 23b provided laterally from the storage portion.
And a baffle portion 23d that opens and closes the opening, and the opening 2 of the main body 21 is provided on the lower surface of the main body 21 of the deodorizing device.
It is mounted so as to close 3b. Reference numeral 23e is a spring for closing the baffle portion 23d.

When this damper is used, for example, for controlling the temperature of a refrigerating room, it is installed in the air passage 13 shown in FIG. 12, and the baffle is opened and closed to control the air volume of the cool air so that the temperature inside the refrigerator is made uniform. It keeps control.

Fourth Embodiment 21 is a perspective view showing a drip-proof substrate unit of a deodorizing device for a refrigerator according to Embodiment 4. FIG.
FIG. 22 is a front view of the deodorizing device equipped with the drip-proof substrate unit, and FIG. 23 is a side view of the deodorizing device equipped with the substrate unit. In the figure, 19 is a light emitting device, 19a is a lead wire, 19b is an LED, 19c is an antistatic Zener diode, and 24 is a drip-proof substrate case made of an acrylic material or a glass material in which the light emitting device 19 is built. With the built-in state, the opening of the case is sealed and closed by the seal portion 25.

With such a configuration, the LED is assembled at a low temperature, and even if the door is opened for a long time and warm air flows in, no dew condensation occurs on the LED board assembly, and lead wire breakage due to rust and solder portion corrosion. Etc. can be prevented. The drip-proof case 24 is a material that transmits ultraviolet rays, and examples thereof include acrylic and glass. Further, by forming a vacuum inside the case, it is possible to prevent dew condensation inside the case.

As shown in FIG. 24, the filter 17 is arranged and fixed to the lower part of the pair of frame bodies 21a as shown in FIG. 24, and the LED 19b of the light-emitting device 19 is provided on the upper part of the one lead wire so as to face the surface of the filter 17. The both ends are fixed by inclining the 19a side downward. By arranging them obliquely, even if the water droplets 26 enter the case, it is possible to reduce the possibility of accumulating on one side and adhering to the substrate as shown in the figure.

Embodiment 5. In FIG. 25, the lens part 27 is provided in the drip-proof substrate case 24 shown in the fifth embodiment to collect ultraviolet rays. With this configuration, the filter can be effectively irradiated. The degree of light collection may be adjusted according to the filter size.

Sixth Embodiment FIG. 26 is a perspective view showing a substrate of the deodorizing device according to the sixth embodiment. In the figure, 1
Reference numeral 9 is a light emitting device composed of a substrate, 19a is a lead wire, and 19b.
Is LED, 19c is antistatic Zener diode, 2
8 is a second reflecting member made of stainless steel or the like, which has a circular opening 28a at the center, and a mortar-shaped inclined surface 2 from the opening edge.
8b is formed to form a reflecting surface.

With this configuration, the light emitting device 19
The ultraviolet light emitted from the LED 19b is reflected by the second reflecting member 28 and condensed, so that the filter can be efficiently irradiated with the ultraviolet light. In this case as well, the degree of light collection may be adjusted by the filter size.

Embodiment 7. FIG. 27 is a schematic view showing the arrangement of air passages in a refrigerator equipped with the deodorizing device according to the seventh embodiment. In the figure, 15 is a blower, 13a is a first air passage to a first chamber (for example, a refrigerating room) in which deodorizing devices 21 having different temperature zones are arranged, and 13b is a second chamber in which the deodorizing device 21 is arranged (for example, an ice making chamber). ), 13c is a third air passage to a third chamber (for example, a switching chamber) where the deodorizing device 21 is arranged,
13d is a fourth air passage to a fourth chamber (for example, a freezing chamber) in which the deodorizing device 21 is arranged. 23 is a damper unit.

By disposing the deodorizing device 21 equipped with the damper unit 23 at the positions of the first air passage 13a, the second air passage 13a, the third air passage 13a, and the fourth air passage 13a in this air passage, The cold air flowing into is deodorized. The number of air passages may depend on the number of refrigerators, and by doing so, the deodorized cold air can be sent to the chamber that needs deodorization.

[0044]

EFFECT OF THE INVENTION Since the refrigerator-freezer according to the present invention is equipped with a deodorizer comprising a photocatalyst or a filter in which a photocatalyst and an adsorbent are mixed and a light emitting device provided with an LED for generating ultraviolet rays, a low current is used. As a result, the food and other odors can be efficiently deodorized, and the user can comfortably use the refrigerator.

Further, since the refrigerator-freezer according to the present invention comprises the filter and the light emitting device and is equipped with the deodorizing device which is integrally formed while keeping a predetermined distance, it is excellent in handleability during material handling and disassembled. It also has the effect of improving recyclability with excellent removability at time.

Further, since the refrigerating refrigerator according to the present invention is constructed such that the deodorizing device and the damper unit are integrally formed and mounted on the refrigerator, the number of parts can be reduced.

Further, in the refrigerator-freezer according to the present invention, since the light-emitting device is covered with the transparent case which transmits ultraviolet rays, the light-emitting portion is small even if the case material of the drip-proof structure is glass. Even when it is cracked, it is difficult to apply stress, and even if it is placed in the air passage, it has an effect that external stress is hard to apply.

Further, since the freezer-refrigerator according to the present invention is constructed such that the transparent case has a drip-proof structure, even when the case-proof material of the drip-proof structure is glass, the light emitting portion is small, so that it can be broken even at the time of material handling. It is less likely to be stressed, and even if it is placed in the air passage, it is less likely to be subjected to external stress, and it has an effect of protecting it from dew condensation and water drops without affecting performance.

Further, in the refrigerator-freezer according to the present invention, since the transparent case has the lens portion made of a material that transmits ultraviolet rays, the ultraviolet rays can be efficiently condensed and the irradiation efficiency of the filter can be improved. Have.

Further, in the refrigerator-freezer according to the present invention, since the light emitting device has the structure in which the reflecting member is provided around the LED, the ultraviolet rays can be efficiently collected and the irradiation efficiency of the filter can be improved.

In the refrigerator-freezer according to the present invention, the light-emitting device has at least two temperature zones and at least one air flow controller is provided in the cold air passage. It has an effect that it is possible to easily deodorize each room having a different internal temperature.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a refrigerator according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the refrigerator showing the first embodiment of the present invention.

FIG. 3 is a perspective view of a filter showing the first embodiment of the present invention.

FIG. 4 is a simplified explanatory view of the filter surface of FIG. 3 according to the first embodiment of the present invention.

FIG. 5 is a detailed view of the filter according to the first embodiment of the present invention, where (a) is a detailed view of the components and (b) is a detailed view of the sintered particles.

FIG. 6 is a perspective view showing the light emitting device of the refrigerator according to the first embodiment of the present invention.

FIG. 7 is a relative light distribution characteristic diagram showing emission data of the LED according to the first embodiment of the present invention.

FIG. 8 is a perspective view of a measuring device that measures relative light distribution characteristics of LEDs according to the first embodiment of the present invention.

FIG. 9 is an electric circuit diagram of the substrate of the refrigerator according to the first embodiment of the present invention.

FIG. 10 is a control flowchart of the refrigerator according to the first embodiment of the present invention.

FIG. 11 is a front view showing a deodorizing device for a refrigerator according to Embodiment 2 of the present invention.

FIG. 12 is a side view showing a deodorizing device for a refrigerator according to Embodiment 2 of the present invention.

FIG. 13 is a front view showing a modified example of the deodorizing device for a refrigerator according to the second embodiment of the present invention.

FIG. 14 is a side view showing a modified example of the deodorizing device for the refrigerator according to the second embodiment of the present invention.

FIG. 15 is a front view showing a modification of the deodorizing device for a refrigerator according to Embodiment 2 of the present invention, which is provided with a plurality of filters.

FIG. 16 is a side view showing a modification of the deodorizing device for a refrigerator according to Embodiment 2 of the present invention, which is provided with a plurality of filters.

FIG. 17 is a front view showing a deodorizing device for a refrigerator according to Embodiment 3 of the present invention.

FIG. 18 is a side view showing a deodorizing device for a refrigerator according to Embodiment 3 of the present invention.

FIG. 19 is a perspective view showing a damper unit of a refrigerator deodorizing device according to Embodiment 3 of the present invention.

FIG. 20 is a sectional view of a refrigerator in which a deodorizing device according to Embodiment 3 of the present invention is arranged in a cool air duct.

FIG. 21 is a perspective view showing a drip-proof substrate unit of a deodorizing apparatus according to Embodiment 4 of the present invention.

FIG. 22 is a front view showing a deodorizing device according to Embodiment 4 of the present invention.

FIG. 23 is a side view showing a deodorizing device according to Embodiment 4 of the present invention.

FIG. 24 is a front view showing a modified example of the deodorizing device according to the fourth embodiment of the present invention.

FIG. 25 is a front view showing a deodorizing device according to a fifth embodiment of the present invention.

FIG. 26 is a front view showing a deodorizing device according to Embodiment 6 of the present invention.

FIG. 27 is a schematic view showing a deodorizing device according to Embodiment 7 of the present invention arranged in an air duct.

FIG. 28 is a perspective view showing a main part of a refrigerator according to a conventional invention.

FIG. 29 is a cross-sectional view of a deodorizing glass tube heater showing a photocatalyst of a refrigerator according to the conventional invention.

FIG. 30 is a front view showing a main part of a refrigerator according to a conventional invention.

FIG. 31 is a front view of a deodorizing glass tube heater showing a main part of a refrigerator of a second conventional example.

[Explanation of symbols]

1 Refrigerator body, 7 Photocatalyst, 8 First reflection member, 9
Refrigerating room, 10 switching room, 11 vegetable room, 12 freezing room, 13 cold air passage, 14 cooler, 15 blower, 16 cooling room, 17 filter, 18 adsorbent, 19
Light emitting device, 19b LED, 19c Antistatic Zener diode, 21 Deodorizing device, 22 Transparent case, 2
3 damper unit, 24 drip-proof board case, 26
Lens part, 27 Second reflecting member.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Katsumasa Sakamoto             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. (72) Inventor Junji Yoshida             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. (72) Inventor Naho Misumi             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd.

Claims (8)

[Claims] 1. A freezer-refrigerator equipped with a deodorizing device comprising a photocatalyst or a filter in which a photocatalyst and an adsorbent are mixed and a light emitting device having an LED for generating ultraviolet rays. 2. The freezer / refrigerator according to claim 1, further comprising a deodorizing device which is integrally provided with a filter and a light emitting device while keeping a predetermined distance. 3. The deodorizing device and the damper unit are integrally configured and mounted in a refrigerator.
The refrigerator-freezer described. 4. The refrigerator / freezer according to claim 1, wherein the light emitting device is covered with a transparent case that transmits ultraviolet rays. 5. The refrigerator-freezer according to claim 1, wherein the transparent case has a drip-proof structure. 6. The refrigerator / freezer according to claim 4, wherein the transparent case is provided with a lens portion made of a material that transmits ultraviolet rays. 7. The light emitting device is provided with a reflection member around the LED, claim 1, claim 2, claim 3,
The refrigerator-freezer according to claim 4, claim 5, or claim 6. 8. The light-emitting device is provided in a passage for exclusive use of cold air, which has at least two or more temperature zones, and has one or more air flow rate regulators.
The freezer-refrigerator according to claim 3, claim 4, claim 5, or claim 6.