JPS6249172A - Cooling storage shed - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a refrigerated storage warehouse which is cooled by forced circulation of cold air inside the refrigerator and has an ice chamber that maintains the storage temperature at the freezing storage temperature. .

(B) Conventional technology Cooling storage compared to the conventional technology For example, in a refrigerator, a freezer compartment is cooled to a freezing temperature extremely lower than the freezing point, and a compartment is maintained at a refrigeration temperature higher than the freezing point. Frozen foods and the like are stored in the freezer compartment, and bottled foods and foods such as meat and fish to be cooked immediately are stored in the refrigerator compartment.

However, if living things such as meat and fish are not cooked immediately, they can be stored in a freezer and frozen for a long period of time, but the tissue is destroyed and the flavor is lost when thawed for cooking. or,? @In the warehouse, there is a problem that such living things rot in a short period of time.

(c) Problems to be Solved by the Invention In order to solve these problems, in recent years, efforts have been made to form ice chambers inside refrigerators that are cooled to freezing storage temperatures.

This freezing temperature storage temperature refers to the temperature range from 0℃ to 13℃, and takes advantage of the fact that the freezing point of food is lower than the freezing point. By keeping food cool at freezing storage temperatures, it does not freeze (therefore the flavor is not lost), inhibits the growth of bacteria, and allows food to remain fresh for a relatively long period of time.

There are two cooling methods for this icehouse: one is to introduce cold air directly into the room and the room is cooled exclusively by the introduced cold air, and the other is to form a cold air passage outside the core chamber and cool the room indirectly from the four cold air paths. There are some methods that cool the food by direct cooling, but indirect cooling is preferable to maintain the quality of the food, as direct cooling results in significant drying of the food.

However, the above-mentioned ice temperature storage temperature range is from 0℃ to 13℃ (
On the other hand, the above-mentioned indirect cooling has a poor ability to follow the rapid temperature increase of tI 7m, so a lifting platform that stores a large amount of food in an ice room has the problem that the temperature inside the room may deviate from the ice temperature storage temperature range. be.

Means for solving the problem (1) The present invention provides a cooling storage (1) to solve the problem.
) in 11', an ice chamber (
A cold air passage (A) 6 (0) with an ice chamber +12 formed outside thereof is cooled, and an auxiliary cold air outlet 6 is formed in the ice chamber (12), and a damper installation jt (83) is formed.
1, it can be opened and closed freely.

According to the present invention, the inside of the icehouse is always cooled by indirect cooling, and when the load suddenly increases, the damper device can be used to discharge auxiliary cold air. It can be introduced to

(F) Embodiment An embodiment will be explained with reference to the drawings. Figure 8 shows an example of a cooling storage. @Storage tOV is shown.

(2) is an insulated box that opens at the front, and (3) is! 4 [It is an insulating partition wall that partitions the interior, and above it forms a freezer compartment (41.
) This is a partition plate that serves as a vegetable compartment (7).

The interior space between the partition wall (3) and the partition plate (5) is further divided into upper and lower parts by an insulating partition plate (8), and the lower part is a refrigerating room that is cooled to a refrigeration temperature of -3°C. (9). There is a partition plate (8) between the partition plate (8) and the partition wall (3).
An ice room UB as a compartment is formed by the case side opened to the front and downward, the compartment plate (8), and the transparent inner door Q11 attached to the compartment. A cooling chamber 1''3 is formed within the partition wall (3), and a cooler αI included in the refrigeration cycle is accommodated therein. Cooling chamber 0: A filter duct (I side 6) extending vertically is formed in communication with the cooling chamber 0 at the rear, and a blower 1'7) is provided. Blower u7)
is operated to duct cold air from cooler Q41) (15
1C16j direction, from duct 05) to the freezer compartment (4
). The duct H6) discharges cold air from the discharge ports a to the back wall of the insulated box body (2) at the rear of the case (lot), and these discharge ports (1& detect the temperature inside the refrigerator compartment (9) as described later). Opening/closing is controlled by a large gas-resistant damper thermometer (1).The partition plate (8) is located on the front member Cut, which is installed across the left and right edges of the opening of the lower blade of the partition wall (3). , L- and both constitute a partition wall. Also, (
2+) e) 3123) and C Sogo each freezing room (4)
On the ice greenhouse Q7Jm side, the openings of the a-room (9) and the vegetable compartment (7) are closed.

Figure 1 is an exploded perspective view of the water greenhouse (121), Figures 2 and 3 are
Figures 4 and 4 are cross-sectional views taken along line A-A and B-B in Figure 1, respectively.
A cross-sectional view along the line and a cross-sectional view along the line C-C are shown, and further, FIG. 5 shows a front cross-sectional view of the ice room U. (b) is a Dunbar Boomo force bar with 5 dust, inside has insulation material arc 17, case 0 ()
) and the back wall of the insulating box body (2), it flows out from the discharge old 181 and flows directly into the AZ Rei cold air refrigerating room (9).
The side force outlet [26] that causes F and the outlet (lJ) that discharges cold air forward are +41. ing. (80A
) is the cold air passage to the side discharge port (■) formed in the heated material. On the rear upper surface of case 001, a groove (property) spanning the entire width of case 001 is formed, and within this groove □□□ there is a molding that opens upward and to the left and right to form a cold air passage for distribution from side to side. The insulation material is stored. As shown in Fig. 5, the left and right side surfaces of the case (101) communicate with the cold air passage @ with a space between both sides of the inner surface of the insulating box (2), and the cold air passage (7).
I have configured it. At this time, the opening edge and back surface of the case α■ are in contact with both sides of the lower surface of the partition wall (3) and the inner surface of the heat insulating box (2).

The upper surface of the case Q0 has a small distance between the partition walls (3), and also has an upper trap protrusion or protrusion 131) in the center. An operation arm (32) is rotatably fixed to this projection CHI), and a damper plate system rotatably engages with a long hole formed at the rear end of this arm (321). It is integrally formed with an opening/closing plate (4) located at the rear A'lDi side and a closing plate (41) located at the rear A'lDi.
It opens at the center of the C air passage t2sa, and the opening/closing plate (4
11+ is located just before the outlet exit in Lingqixu City Road CS+. 3. Arm c3:] The knobs at the front end (4 are exposed on the back side of the inner door (11), and by operating these knobs (4) left and right, the cold air is drawn from the discharge Hita into the cold air passage C!υ. The amount of cold air flowing in can be adjusted.In addition, the concave groove □
A rib (43) projecting upward is formed on the front edge of □□ to prevent cold air from flowing into the upper surface of the case (10), and a notch (44J) is formed for movement of the arm c37J. Correspondingly, the insulation material also has a notch (29A).
is formed. Immediately before this notch (44) is a blocking plate (
4υ is located. This closing plate θB always closes the cutout circle even if the arm C33 moves from side to side.

The blocking plate (41) and the rib (c) prevent cold air from flowing into the side of the case 0Q, so the cold air stays here and prevents the inconvenience of frost forming on the upper surface of the case (101). This is a cover that closes the entire opening on the top of the insulation material.

Figures 6 and 7 show enlarged views of the side and front parts of the partition plate (8), respectively. (4-block (47) is an insulated box (
(413) is the outer box and inner box that make up 2).
) (This is a heat insulating material filled between 4η. The partition plate (8) has an upper plate 60 with a depressed inner side than the edge, a lower plate 6υ, and a molded heat insulating material 67 filled between both sides 6υ! The heat insulating material 62 is provided along the upper surface of the lower plate 511, and is spaced from the upper plate 50) at least laterally.

Further, the lower plate 6υ has a plurality of through holes closer to the center than the edge, and the heat insulating material 62i also has through holes 54 corresponding to the through holes and communicating with the interval. Furthermore, a plurality of through holes 551 are formed on both side edges of the upper plate. This through hole f55
1 communicates the cold air passage ω with the upper plate group and the space between the insulation materials (52), and these through holes 50 (541631) connect the cold air passage (to) and the refrigerator compartment (9) inside the partition plate (8).
) is configured to communicate with the cold air passage ω. The K-kari ω is fixed to the upper edge of the inclined surface of the upper plate 60 inside the through hole (G),
In addition, the cold air passage □□□ is connected to the sloped part (8) around the partition plate (8).
Due to the shape of A), it slopes inward from the perforated can and descends.
It has a shape that wraps around the lower surface of the upper plate 50.

The partition plate (8) assembled in this way has grooves 5 formed on both side walls of the inner box (47) above the front member ω.
7) can be attached approximately horizontally by engaging both side edges, but since the central horizontal part is recessed than the edges, it is located at the rear of the front part. Therefore, the dead space inside the refrigerator behind the front member (support) can be used effectively, and the partition plate (8) is recessed, and there is sufficient space above the case aω to accommodate the arm C32). Case 00 without configuring a cold air passage)
By allowing the upper surface to be close to the lower surface of the partition wall (3), the internal volume of the ice chamber can be expanded.

The front member (2o) has a step part (20
A) is formed and has one or more ribs (60) projecting rearward on the rear surface. - force, partition plate (
At the front end of the lower plate 6υ corresponding to the inclined part (8A) of 8), one or more supporting walls corresponding to the ribs t60) and extending vertically are protruded, and this supporting wall is connected to the rib [6
01 prevents the front part of the partition plate (8) from sagging due to the weight of stored items or its own weight, and also prevents the front part of the partition plate (8) from sagging due to the weight of the stored items or its own weight. The distance between the plate (8) and the sloped portion (8A) is maintained. At this time, the front edge of the upper plate (5O1) of the partition & (8) extends to the upper part of the step part (20A) of the front member ω, covers it with a gap therebetween, and has multiple through holes ( 621 is formed. Also, M, C221 and inner N (I l
), and the upper end communicates with the cooling chamber 03 through the suction hole (6) formed at the front of the lower surface of the partition wall (3).
The lower end is communicated with the refrigerator compartment (9) through a through hole 13, forming a series of cold air return passages. Here, the freezer compartment (4
) is the cold air intake hole.

Next, cold air circulation will be explained. The cold air blown out from the discharge port (to) of the damper thermo cover (c) flows into the cold air passage (to), once collides with the front wall of the molded heat insulating material 4, and is distributed to the left and right. At this time, due to the presence of the molded heat insulator, frost will not form on the outer surface of the case (IQI). The cold air flows into the cold air passage (to) and descends, and flows into the cold air passage ω through the through-hole.The cold air that flows into the cold air passage (g) flows through the through-hole ω at the side end due to the sloped shape of the passage.
64) Most of it is better guided toward the center without flowing down more quickly. As a result, the inside of the icehouse Ct'J is a case (
It is only indirectly cooled from both side surfaces of 1ω and the upper plate (5o) of the partition plate (8). Here, by not circulating cold air on the top surface of the case (1ω), we can prevent frost formation on the top surface and ice greenhouse (1ω).
Although expansion of the internal volume is achieved, the cooling effect may be insufficient. Therefore, on both sides of the molded heat insulating material marked R2, a narrow cold air channel is formed that opens into the cold air channel rut and also opens in front of the insulating material (to) below the channel, and also in the front of the concave groove of case 0ω. Correspondingly, a through hole (67) is bored. As a result, a very small amount of the cold air inside the cold air passage is introduced directly into the ice room (121), and the installation of the refrigerator fl speeds up the cooling speed of the ice room (12+).
Eliminates insufficient cooling due to indirect cooling. Also, at this time, the cold air flowing in through the through holes flows into the ice room α2 from both sides and is directed forward by the passage, so it flows forward along the inside of the side of the case OC, and the stored food It flows as if enveloping the. Furthermore, since the amount of cold air flowing in is small, the stored food hardly ever dries.

In this way, the amount of cold air flowing through each cold air passage is set so that the ice temperature is maintained at the ice temperature storage temperature by indirect cooling.Here, the ice temperature storage temperature is 0℃ to −
Although it is below freezing, such as 3 degrees Celsius, it is a temperature range on the verge of freezing meat and vegetables. By storing food at this freezing storage temperature, the growth of bacteria inside the food is suppressed without freezing.
It can be stored for a relatively long period of time (about a week in experiments).

The cold air that has flowed into the cold air passage (to) flows down into the refrigerator compartment (9) through the through holes 54), and together with the cold air from the side discharge port (c), flows inside the refrigerator compartment (9) and around the container (6). After circulating and exchanging heat, it passes through the space between the partition plate (8) and the front member ■ and rises along the inner Bul + outer surface as shown by the arrow in FIG.
Go up the cold air return passage (goods) and enter the cooling room (j
Return to 31st. In the vicinity of the door (c), upward airflow is likely to occur due to heat leakage from outside the refrigerator, and this cold air return operation is also achieved smoothly.

In addition, since there is a constant rising air current in front of the inner door α1), the transparent inner door α1) does not become cloudy due to condensation, and visibility inside the low-temperature ice room α3 is always maintained. become.

The temperature sensing part (19A) of damper thermo 0 is located in the slit part (25A) of the damper thermo cover (c) and senses the temperature of the refrigerator compartment (9).
Changing the set temperature of the cold air passage (to) will also change the amount of cold air flowing into the cold air passage (to).
The temperature inside can be maintained at a predetermined ice temperature storage temperature.

In the duct H61, an auxiliary cool air discharge port I82 is formed in the lower left corner of the discharge port 0. The phantom is an auxiliary damper as a gas-filled damper device that opens and closes the discharge port 3z.It is installed in parallel to the lower left of the damper thermo α■, and is similarly covered by a heat insulating material (material) and a damper thermo cover■. . The cover (25) has an auxiliary cold air outlet that discharges the cold air flowing out from 2) forward, and a discharge outlet (
Corresponding to the front, a sloping passage with a high front and a low rear is formed across the front and back, and the discharge port (B) is connected to the rear end of this passage (A), and the concave groove (the front side A corresponding through hole η is formed in the main body of the auxiliary damper (831) and an electric heater (89
is installed. In addition, cold air passage C with molded insulation material C!
The second air passage and the cold air passage (2) are communicated by a narrow vertical passage (9111).

Next, referring to the electrical circuit diagram in Figure 9, set up the auxiliary damper Kl.
Explain the operation. (9Z is a thermostat that senses the temperature of the freezer compartment (4). For example, it closes its contacts at -17°C and opens its contacts at 23°C. It is a thermostat for the electric compressor OB that makes up the refrigeration cycle of the refrigerator (1). (91M) and the blower (171) are connected in series to the parallel circuit of the motor (17M), thereby keeping the inside of the freezing room (4) at an average temperature of -20°C.The trowel senses the temperature of the ice room O2. It is a thermostat and is connected to the power supply (AC) in the [alpha] column of the electric heater.This thermostat 3 closes when the temperature of the ice chamber (121) reaches +1°C, for example, and opens at -2°C.Here, The auxiliary damper &) closes the discharge port Q32+ when the temperature around the main body and the temperature sensing part (c) is below 0℃,
It has the characteristic of opening when the temperature is higher than 0°C, but when the electric heater is not generating heat, the temperature around the main body and temperature sensing part (c) becomes low due to the cold air flowing down from the vertical passage (head, cold air passage). Therefore, the auxiliary damper always closes the discharge port 0.

Therefore, if the temperature inside the ice room is within the range of 00 to -3°C, the auxiliary damper □□□ is closed. Next is the ice greenhouse u3
When storing sensitive foods inside the ice room, the cooling capacity with normal indirect cooling is insufficient, and the temperature of the ice room Q2+ rises.
When the temperature reaches 1°C, the thermostat (93) closes and the electric heater Q39 generates heat. This causes the main body of the auxiliary damper and the temperature-sensing part to rise. As the surrounding temperature rises, the discharge outlet opens, and a large amount of The cold air is introduced to rapidly lower the temperature, and when the temperature drops to -2°C, the thermostat (93) opens and the discharge port Q3z is closed again. This prevents an abnormal temperature rise in the ice room α4 and prevents quality deterioration of the stored food.

10 and 11 show other embodiments corresponding to FIG. 9. Note that the same reference numerals as in FIG. 9 are the same. In Fig. 10, motors (91M) (17M) and thermocouple (921) are the same connections as in Fig. 9. Field consists of double contact (%) (9?) and motor (□□□) In the timer, the contact (G) and the motor (981) form a series circuit, and the contact (Ma) forms a series circuit with the electric heater (89) and is connected to the power supply (AC).Next, to explain the operation, the ice greenhouse Q If a large amount of food is stored within the power supply, set the timer motor (for example, 2 hours and 30 minutes).This closes the contacts (96) and (97), causing the motor to rotate and turning on the electric heater. generates heat, and the auxiliary damper device opens the discharge port (83) and introduces cold air. After 30 minutes, the motor opens the contacts (96) and (97), and the electric heater g3 stops generating heat, and the discharge port opens. The auxiliary damper (a) closes.This allows the ice room to be turned off after storing a large amount of food.
Since cold air is directly introduced into the chamber for a predetermined period of time, an abnormal temperature rise due to insufficient cooling is prevented.

Next, in Figure 11, the motor (91M) (17M)
and the thermostat (9) should be connected in the same way. (9) is an instant return type switch, and the double contact point (101) (1
Coil (1) of relay switch (103) with
04) and a thermoswitch (105) that senses the temperature of the ice room Q21, forming a series circuit and being connected to a power source (AC).

The contacts (101) are connected in parallel to the switch (2) and the contacts (102) are connected to the power source (AC) in series with the electric heater. The thermoswitch (105) closes when the temperature of the ice room is higher than 13°C, and opens when the temperature is lower than 13°C. Next, the operation will be explained. After storing a large amount of food in the ice room (a) and (d), the temperature inside the room (121) has become higher than -3°C, and the thermo switch (105) is closed.
When the switch 0rXJ is closed, the coil (104) is energized and the contacts (101) and (102) are closed, so the relay switch (103) is self-holding, and the electric heater is connected to the discharge port (c). is opened and a large amount of cold air is introduced directly into the chamber (12+).Afterwards, when the temperature of the ice chamber Q falls to 13°C, the thermoswitch (105) opens, so the self-holding of the relay switch (103) Unraveled,
The electric heater g9) stops generating heat and the discharge outlet device z is closed. In this case, too, an abnormal temperature rise within a room (within 1 force) due to the storage of a large amount of food is prevented.

Here, the auxiliary damper 8M, as described above, opens as a discharge port only when an abnormal temperature rise occurs or when it is predicted, and remains closed most of the other time.

Therefore, if there is no vertical passage (A), the surface on the duct (14 side) of the baffle plate (83A) related to the auxiliary damper is
The cold air from room 121 reaches an extremely low temperature of about -30°C, while the temperature on the side of the room (121) becomes about -11°C as mentioned above.If the temperature difference is large like this, the baffle plate (83
The insulation performance of A) alone was not enough to deal with the problem, so a baffle plate (8
3A), a deposit 1" is formed on the n row on the side of the chamber u21, which grows and becomes fixed around the discharge port 2 by freezing.

Therefore, if only the internal gas pressure is used, the baffle plate (83A)
There is a risk that it will not be possible to remove it from the discharge port [F]2, but in this application, the cold air dried at an extremely low temperature after heat exchanged in the cooler α41 in the cold air passage @ from the vertical passage (7) is removed from the baffle. Since the cold air flows into the chamber (121 side) of the plate (83A) (because the cold air passage □□□ is inclined backwards), the temperature difference between both sides of the backful plate (83A) is alleviated, so such freezing is prevented. It will no longer occur.

(G) Effects of the Invention According to the present invention, the inside of the icehouse is always kept cool by indirect cooling, so drying of the food is suppressed, and in combination with freezing temperature storage, good quality can be maintained.

In addition, since the auxiliary cold air outlet can be opened and closed using a damper device, it is possible to quickly respond to abnormal temperature rises in the icehouse, achieving good temperature control in a relatively narrow icehouse. This makes it possible.

[Brief explanation of the drawing]

Each figure shows an embodiment of the present invention, and FIG. 1 is an exploded perspective view of the components of the icehouse, and FIG. 2 is an A-A diagram of FIG. 1 assembled.
3 is a sectional view taken along the line C-C, and FIG. 4 is a sectional view taken along the C-C line.
C-line sectional view, Figure 5 is a front sectional view of the ice room, Figure 6 is an enlarged sectional view of the side part of the partition plate, Figure 7 is an enlarged sectional view of the front part, and Figure 8 is a side sectional view of the refrigerator. , FIG. 9 is a schematic electrical circuit diagram of the refrigerator, and FIGS. 10 and 11 are diagrams showing other embodiments corresponding to FIG. 9. Qri...Ice greenhouse, ■ω...Cold air passage, 3ka...
・Auxiliary cold air outlet, (c)...Auxiliary damper. Applicant Sanyo Electric Co., Ltd. and one other representative Patent attorney Shizuo Sano No. 2, No. 10, No. 11, Prisoner No. 30, Figure 155, Figure 4, Figure 6IA

Claims (1)

[Claims] 1. In a cooling storage in which cold air from a cooler is forcedly circulated into the storage using a blower, an ice chamber that is maintained at freezing storage temperature is formed within the storage, and the ice chamber is directed outward. A cooling storage, characterized in that an auxiliary cold air outlet is formed for cooling from the formed cold air passage and supplying cold air into the ice room, and the outlet can be opened and closed by a damper device.