CN105783367A - Special refrigerator for air flue air-supply-type refrigeration house - Google Patents

Abstract

The invention discloses a special refrigeration box for air duct air supply type cold storage. The invention includes a box body, a box door, an air supply hole, an air return hole and a temperature display. The box body and the box door are connected through hinges. A sealing ring is provided at the joint between the box body and the box door. There is a buckle device; there is an air supply hole on the lower right side of the rear side wall of the box, and there is a return air hole on the upper left side of the rear side wall of the box. The roots of the air supply hole and the return air hole that intersect with the box are covered with sealing rubber. , there are four grooves in the air supply hole and the air return hole, and four terminals are provided in each groove, and each terminal is connected to a wire respectively; the temperature display is installed above the front of the box, and the temperature display Connect the 24v power supply through wires, and the output control end of the temperature display transmits the control signal to the air supply holes, return holes, and electromagnetic dampers in the air duct through wires. The invention combines the advantages of the two existing types of refrigerated boxes: (1) there is no refrigeration equipment in the box, so the cost is low; (2) the cold storage air duct is connected to the cold storage, and the cooling speed is fast; (3) the air duct is conveniently connected and has strong controllability.

Description

A special refrigerator for air duct air supply type cold storage

technical field

The invention relates to a refrigerator, in particular to a special refrigerator mainly used in an air duct air supply type refrigerator.

Background technique

With the rapid development of the economy, the refrigeration industry has sprung up. As the key equipment in the cold chain logistics process, refrigerators play an important role in extending the freshness period of food and reducing energy consumption.

At present, there are mainly two types of refrigerators commonly used: 1) There is a built-in refrigeration device in the box, and the disadvantage is that the box must be powered by an external power supply and the cost is high; 2) The box is only made of insulation materials. Composition, its disadvantage is that the box body cannot be placed directly in the cold storage to cool down. When food is transported, it is necessary to take out the fresh food from the cold storage and put it into the refrigerator, which will inevitably cause loss of cooling capacity.

Contents of the invention

In order to overcome the disadvantages of the above-mentioned prior art, the present invention provides a special refrigerated box for air duct ventilation type refrigerated storage.

The present invention adopts following technical scheme to realize:

An air duct air supply type cold storage special refrigerator, including a box body, a box door, an air supply hole, a return air hole and a temperature display. The box body and the box door are all three-layer structures, and the inner and outer layers are corrugated boards. The middle layer is a foaming agent foaming layer, the box body and the box door are connected by hinges, a sealing ring is provided at the junction of the box body and the box door, and a buckle device is provided at the opening and closing of the box body and the box door; There is an air supply hole on the lower right side of the wall, and a return air hole on the upper left side of the rear side wall of the box. The air supply hole and the return air hole are both cylindrical. Sealing rubber, there are four grooves in the air supply hole and the return air hole, and each groove is equipped with four terminals, and each terminal is connected to a wire; the temperature display is installed on the front of the box. The temperature display is connected to the 24v power supply through a wire, and the output control terminal of the temperature display transmits the control signal to the air supply hole, the return air hole and the electromagnetic air valve in the air duct through the wire to control its opening and closing.

The air duct air supply type cold storage special refrigerator has a horizontal groove in the middle of the bottom of the box, and its position and size coincide with the convex groove horizontal slideway installed on the shelf.

In the air duct air supply type cold storage special refrigerator, the four grooves in the air supply hole and the return air hole are all chamfered, and there is a metal sheet at the bottom of the groove as a conductive terminal.

In the air-duct air-supply type cold storage special refrigerator, the temperature display on the box body is connected to the four terminals on the groove in the tunnel through wires, and the power is connected through the four terminals.

In the air duct air supply type cold storage special refrigerator, the air supply hole, the air return hole and the electromagnetic air valve in the air duct are connected to the four terminals in the air duct through the four terminals in the groove to obtain power and control signals.

The beneficial positive effect of the present invention is:

1. The air duct air-supply type cold storage special refrigerator of the present invention, the box body and the box door are made of foaming agent in the middle of two layers of corrugated boards, which can not only ensure its cold preservation effect, but also meet its strength requirements, and is especially suitable for In some special industries, such as the preservation of marine geological samples.

2. The special refrigerator of the air duct air supply type cold storage of the present invention, through the air duct of the cold storage, blows air to it to cool down, and has the advantages of the existing two types of refrigerators: (1) there is no refrigeration equipment in the cabinet, and the cost is low; (2) ) It is connected to the cold storage air duct to cool down quickly; (3) It is convenient to connect to the air duct and has strong controllability.

3. In the air duct air supply type cold storage special refrigerator of the present invention, there are air supply holes on the lower right side of the rear of the box, and return air holes on the upper left side. This kind of airflow organization from the bottom to the top makes the cold air enter the box for heat exchange After heating up and expanding, it is easy to flow out of the box by natural convection.

4. When the air duct air supply type cold storage special refrigerator of the present invention is connected to the air duct of the cold storage, there are four grooves in the air supply hole and the air return hole, which coincide with the four spring ball devices in the air duct, avoiding the Leakage of cold air; In addition, the root near the box is covered with sealing rubber, which strengthens the airtightness of the box.

5. The air duct air supply type cold storage special refrigerator of the present invention, the grooves in the air supply hole, the air return hole and the spring ball device in the air duct are all designed with rounded chamfers, which greatly reduces the connection between the box and the air duct. Or resistance when separated, the operation is more convenient and quick.

6. In the air duct air supply type cold storage special refrigerator of the present invention, only when terminals a, b, c, and d in the air supply hole and return air hole are respectively connected with terminals A, B, C, and D in the air duct, that is, the power supply terminal When a-A, b-B and control terminals c-C, d-D are turned on, the temperature display on the box is powered and starts to work. That is to say, the box is not charged when it is not connected to the air duct and is transported independently, which enhances its safety.

7. In the air duct air supply type cold storage special refrigerator of the present invention, the horizontal groove at the bottom of the box body is completely consistent with the convex groove type horizontal slideway installed on the shelf, so that when the box body is connected with the air duct, the precision is very high, reducing The connection errors of terminals a, b, c, d and A, B, C, D are considered.

Description of drawings

Figure 1: A schematic structural diagram of a special refrigerator for air duct air supply type cold storage according to an embodiment of the present invention;

In the figure: 1 is the box body, 2 is the box door, 3 is the air supply hole, 4 is the return air hole, 5 is the temperature display, 6 is the buckle device, and 7 is the horizontal groove;

Figure 2: A partially enlarged schematic diagram of the connection between the air supply hole and the main air duct of a special refrigerator for an air duct air supply type cold storage according to the present invention

In the figure: 8 is sealing rubber, 9 is electromagnetic air valve, 10 is spring ball device, 11 is four grooves, 12 is air duct, A, B, C, D and a, b, c, d are terminal blocks

detailed description

The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in Figure 1-2, this embodiment includes a box body 1, a box door 2, an air supply hole 3, a return air hole 4, a temperature display 5, and the like. Both the box body 1 and the box door 2 are made of foaming agent in the middle of two layers of corrugated boards. The two are connected by hinges, and the joint is provided with a sealing ring. There is a horizontal groove 7 in the position; there is an air supply hole 3 on the lower right side behind the box body, and a return air hole 4 on the upper left side, both of which are cylindrical, and are wrapped with sealing rubber 8 at the root close to the box body , there are four grooves 11 in the channel, and four terminals a, b, c, d are arranged in the groove 11, which are respectively connected with wires; the temperature display 5 is installed at the box frame above the front of the box body, and the temperature display has wires for its 24v power supply is supplied, and the output control terminal of the temperature display transmits the control signal to the electromagnetic air valve 9 through wires to control its opening and closing.

Put the materials that need to be refrigerated (such as collected rock samples) into the refrigerator in sequence, and pay attention to avoiding the air supply hole 3 and the return air hole 4 as much as possible, and lock the buckle device 6; The box body is transported to the corresponding position of the shelf, so that the horizontal groove 7 provided at the middle position of the bottom of the box body coincides with the convex groove type horizontal slideway installed on the shelf, and the box body is slowly pushed into the shelf.

The air supply hole 3 on the box body, the groove 11 in the air return hole 4 and the spring ball device 10 in the air duct are all designed with rounded chamfers, which greatly reduces the resistance when the box body 1 is connected to the air duct 12, so that The operation is smoother; when the box body 1 reaches the designated position, the four grooves 11 in the air supply hole 3 and the return air hole 4 coincide exactly with the four spring ball devices 10 in the air duct, avoiding the leakage of cold air; In addition, sealing rubber 8 is wrapped near the root of the box body, which strengthens the airtightness of the box body.

The electromagnetic air valve 9 on the air supply hole, the air return hole and the air duct is in a normally closed state. When the a, b, c, d terminals in the air supply hole 3 and the return air hole 4 are respectively connected to the A, B, C, D terminals in the air duct, that is, the power supply terminals a-A, b-B and the control terminals c-C, d-D conduct, The temperature display 5 on the box body 1 is powered, and at the same time the temperature controller outputs the signal to the electromagnetic air valve 9 installed on the air supply hole, the return air hole and the air duct through the control terminal c-C and d-D wires to control its opening; It enters through the air duct from the air supply hole 3 on the lower right side at the rear of the box body, and after exchanging heat with the material in the box body to increase the temperature and expand, it flows out of the box body from the upper left side air return hole 4 and enters the main air duct 12 of the storage body. According to the deviation between the temperature in the box and the set temperature, the opening and closing of the electromagnetic air valve is regulated.

When moving out of the cold storage, the moment the a, b, c, d terminals in the air supply hole 3 and the return air hole 4 are disconnected from the A, B, C, D terminals in the air duct 12, the PLC controller issues an instruction, and the air supply hole , the electromagnetic air valve 9 of the air return hole and the air duct returns to the normally closed state. This ensures that the cold air in the cold storage air duct 12 and the box body 1 will not leak, greatly reducing the loss of cooling capacity.

The above-mentioned embodiment is a better implementation mode of the present invention, but the present invention is not limited to the above-mentioned specific implementation mode, any modification or equivalent replacement of the present invention, and equipment and solutions similar to the basic principles of the present invention are included in the scope of the present invention within the scope of protection.

Claims (4)

1. an air channel blowing-type freezer Special refrigerator, including casing, chamber door, wind pushing hole, return air hole and temperature indicator, casing and chamber door are three-decker, internal layer and outer layer are corrugated sheet, intermediate layer is foaming agent foam layer, casing and chamber door are connected through the hinge, and casing and chamber door junction are provided with sealing ring, casing and chamber door opening and closing place and are provided with bayonet unit；Wind pushing hole is had in casing rear wall lower right side, casing rear wall upper left side has return air hole, wind pushing hole and return air hole are cylinder, the root that wind pushing hole and return air hole intersect with casing is surrounded by caulking gum, four grooves it are provided with in wind pushing hole and return air hole duct, being provided with four terminals in described each groove, described each terminal connects wire respectively；Temperature indicator is installed on casing upper front, and temperature indicator connects 24v power supply by wire, and control signal is passed to the electromagnetic air valve in wind pushing hole, return air hole and air channel by the output control terminal of temperature indicator by wire.

2. a kind of air channel according to claim 1 blowing-type freezer Special refrigerator, it is characterised in that: four grooves in duct are chamfer design, and bottom portion of groove has sheet metal as conducting terminal.

3. a kind of air channel according to claim 1 blowing-type freezer Special refrigerator, it is characterised in that: the temperature indicator on casing is when casing is connected with main air duct, and four terminals on passing hole channel inner groovy switch on power.

4. a kind of air channel according to claim 1 blowing-type freezer Special refrigerator, it is characterised in that: the electromagnetic air valve in wind pushing hole, return air hole and air channel obtains power supply and control signal by four terminals in groove with four terminal UNICOMs in air channel.