CN111838505A - a thawing plate - Google Patents

Abstract

The utility model provides a unfreezing plate, unfreezing plate includes heat transfer part, heat transfer part has the heat transfer function, heat transfer part include first upper plate portion, with relative first lower plate portion, the connection that sets up of first upper plate portion with the first connecting portion of first lower plate portion, first upper plate portion first lower plate portion and the first connecting portion of telling form an at least first runner, at least one be equipped with heat transfer medium in the first runner, heat transfer part includes along two tip of first runner direction still include heat accumulation part, heat accumulation part has the heat accumulation function, heat transfer part with heat accumulation part integrated into one piece or fixed connection can further improve the effect of unfreezing plate.

Description

a thawing plate

【Technical field】

The invention relates to the technical field of food thawing, in particular to a thawing plate.

【Background technique】

In real life, some edible meat, fish and shellfish usually need to be frozen for preservation, and with the acceleration of people's life pace, how to thaw food quickly has become a problem faced by modern people.

Defrost frozen food at room temperature or thawed in water are the two most common methods. The main principle is that food relies on contact with air and water to absorb heat, thereby realizing food thawing. However, this thawing method requires a long thawing time, which cannot meet the needs of users.

At present, the defrosting plate is a product with better thawing effect of frozen food. Usually, the inside of the defrosting plate is filled with a refrigerant, and the food is thawed through heat exchange by means of liquefaction and heat release of the refrigerant.

Those skilled in the art can further optimize the design of the thawing plate to improve the thawing effect.

[Content of the invention]

The purpose of the present invention is to provide a thawing plate to further improve the thawing effect of the thawing plate.

In order to achieve the above purpose, the following technical solutions are adopted: a thawing plate, the thawing plate includes a heat exchange component, the heat exchange component has a heat exchange function, and the heat exchange component is provided with a first upper plate portion, and the The first lower plate part opposite to the first upper plate part, the first connecting part connecting the first upper plate part and the first lower plate part, the first upper plate part and the first lower plate The part and the first connection part form at least one first flow channel, and at least one of the first flow channels is provided with a heat exchange medium;

It also includes a heat storage part, the heat storage part has a heat storage function, the heat exchange part and the heat storage part are integrally formed or fixedly connected.

In the thawing plate provided by the present invention, when the low-temperature food that needs to be thawed is placed on the first upper plate portion of the heat exchange component, the lower temperature of the food reduces the temperature of the place where the first upper plate portion is in contact with the food through heat conduction. The heat exchange medium (such as refrigerant) in the channel is in a mixed state of gas and liquid, and due to the different densities of the gaseous refrigerant and the liquid refrigerant, the gaseous refrigerant is roughly located above the first flow channel, and the liquid refrigerant is roughly located at the bottom of the first flow channel. The gaseous refrigerant above the first flow channel will be liquefied into a liquid refrigerant under the condition of low temperature. During the liquefaction process, a certain amount of heat will be released at the same time. , so that the heat exchange between food and heat exchange components is more continuous and efficient.

However, the gaseous refrigerant in the first flow channel is not infinite. As more and more gaseous refrigerant is liquefied into liquid refrigerant, the content of gaseous refrigerant in the first flow channel will gradually decrease, and the thawing effect on food will also increase with the thawing time. increase and gradually decrease.

The thawing plate provided by the present invention further includes a heat storage part, the heat storage part is fixedly connected with the heat exchange part or integrally formed, and the heat storage medium in the heat storage part can provide heat for the refrigerant in the heat exchange part, which can relatively increase the evaporation of the refrigerant The speed is used to replenish the gaseous refrigerant in the first flow channel to improve the defrosting effect.

【Description of drawings】

1 is a schematic structural diagram of an unsealed thawing plate according to a first embodiment of the present invention;

Fig. 2 is the structural schematic diagram of the heat exchange component in Fig. 1;

Fig. 3 is the cross-sectional schematic diagram of the heat exchange component in Fig. 2;

FIG. 4 is a partial schematic view of the heat exchange component in FIG. 2

FIG. 5 is a schematic structural diagram of the heat storage component in FIG. 1;

6 is a schematic diagram of the working principle of the thawing plate;

7 is a schematic structural diagram of a sealed thawing plate;

Fig. 8 is the structural representation of the second type of sealed thawing plate;

9 is a schematic structural diagram of a thawing plate according to a second embodiment of the present invention;

FIG. 10 is a schematic structural diagram of the second heat storage component in FIG. 9;

Wherein, the above-mentioned drawings include the following reference signs:

1: Heat exchange member 11: First upper plate portion 12: First lower plate portion 13: First connection portion 14: First flow passage 15: End portion 2: Heat storage member 2A: First heat storage member 21: Second Upper plate portion 22: Second upper plate portion 23: Second connecting portion 24: Second flow passage 2B: Second heat storage member 25: Third flow passage 26: Opening portion 27: Valve core 28: Axial side wall 281 : Axial opening part 3: End plate part

【Detailed ways】

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to FIGS. 1 to 7 , wherein, FIG. 1 is a schematic structural diagram of an unsealed thawing plate according to a first embodiment of the present invention; FIG. 2 is a structural schematic diagram of the heat exchange component in FIG. 1 ; FIG. 3 is the heat exchange component in FIG. 2 Figure 4 is a partial schematic view of the heat exchange component in Figure 2; Figure 5 is a schematic structural diagram of the heat storage component in Figure 1; Figure 6 is a schematic diagram of the working principle of the thawing plate; ;

Please refer specifically to FIG. 1 to FIG. 3 , in a specific embodiment, the thawing plate provided by the present invention mainly includes a heat exchange component 1 and a first heat storage component 2A, wherein the heat exchange component 1 mainly includes a first upper plate portion 11 and the first lower plate portion 12, the first upper plate portion 11 is generally in a plate-like structure, which is generally located above the heat exchange component 1, and the first lower plate portion 12 is also generally in a plate-like structure, generally located in the heat exchange component 1. At the same time, there are at least two first connection parts 13 between the first upper plate part 11 and the first lower plate part 12 , and the first connection parts 13 are connected to the first upper plate part 11 of the heat exchange component 1 at the same time. and the first lower plate portion 12, at this time, a first flow channel 14 is formed between the first upper plate portion 11, the first lower plate portion 12 and the at least two first connecting portions 13, and the heat exchange component 1 can be made of aluminum material Extrusion or lathe forming, of course, the heat exchange component 1 can also be made of metals with high thermal conductivity such as copper or stainless steel.

In this embodiment, the number of the first flow channels 14 is multiple. Specifically, when the number of the first flow channels 14 is set to be multiple, the first upper plate portion 11 and the first lower plate of the heat exchange component 1 At least a plurality of first connection parts 13 are arranged between the parts 12, and the plurality of first connection parts 13 are arranged at intervals in sequence. The number of the first flow channels 14 defined by the first connecting portion 13 is also more than one. Of course, it is also feasible if only one or two first flow channels 14 are provided.

In addition, a heat exchange medium (not marked in the drawings) is also provided in the first flow channel 14, and the heat exchange medium may be a refrigerant. Therefore, the heat exchange component 1 has a heat exchange function, and each of the first flow channels 14 may be in a connected state. It may be in a disconnected state. In addition, the first flow channel 14 is not limited to the flow channel containing the heat exchange medium, but the number of the first flow channel 14 provided with the heat exchange medium is one or more (including one).

Referring specifically to FIG. 6 , the working principle of the heat exchange component 1 is roughly as follows: when the low-temperature food that needs to be thawed is placed on the first upper plate portion 11 of the heat exchange component 1, the lower temperature of the food makes the first upper plate portion through heat conduction. 11. The temperature of the position where it is in contact with the food decreases. Since the refrigerant in the first flow channel 14 is in a mixed state of gas and liquid, and due to the different densities of the gaseous refrigerant and the liquid refrigerant, the gaseous refrigerant is generally located above the first flow channel 14, and the liquid refrigerant is generally located in the first flow channel 14. Below the flow channel 14, at this time, the gaseous refrigerant located above the first flow channel 14 will be liquefied into a liquid refrigerant under the condition of low temperature, and will release a certain amount of heat during the liquefaction process.

Due to the existence of the temperature difference between the low-temperature food and the first upper plate portion 11, the heat exchange between the food and the heat exchange member 1 will continue, and the heat released by the liquefaction of the gaseous refrigerant will inhibit or slow down the contact between the first upper plate portion 11 and the food. The temperature of the part is reduced, so that the heat exchange between the food and the heat exchange component 1 is more continuous and efficient.

In addition, since the gaseous refrigerant at the contact point between the first upper plate portion 11 and the food is liquefied into a liquid refrigerant under the influence of low temperature, the air pressure in the first flow channel 14 opposite to the position where the first upper plate portion 11 contacts the food will correspond accordingly. reduce.

Since the air pressure in the first flow channel 14 where the first upper plate portion 11 is opposite to the food contact position will decrease accordingly, the rest of the gaseous refrigerant in the first flow channel 14 will partially flow to the place where the air pressure decreases, so as to achieve the air pressure in the first flow channel 14 . The dynamic balance of air pressure, when the gaseous refrigerant inside the first flow channel 14 flows to the place with lower air pressure, makes more gaseous refrigerant liquefy and release heat under the influence of low temperature, suppressing or slowing down the temperature difference between the first upper plate 11 and the food contact part. Lower so that food thawing continues.

However, the gaseous refrigerant in the first flow channel 14 is not infinite. As more and more gaseous refrigerant is liquefied into liquid refrigerant, the content of the gaseous refrigerant in the first flow channel 14 will gradually decrease, and the thawing effect on the food will also increase with the gradually decreased with increasing thawing time.

Therefore, an attempt can be made to increase the evaporation rate of the liquid refrigerant to replenish the gaseous refrigerant in the first flow channel 14 and reduce the reduction speed of the gaseous refrigerant in the first flow channel 14 .

Please refer specifically to FIG. 5 , in order to achieve the above purpose, the present embodiment also provides a first heat storage component 2A, the first heat storage component 2A mainly includes a second upper plate portion 21 and a second lower plate portion 22 , and the second upper plate The part 21 has a generally plate-like structure, which is located generally above the first heat storage member 2A, the second lower plate part 22 is also generally has a plate-like structure, and is generally located below the first thermal storage member 2A, and at the same time, the second upper plate There are at least two second connection parts 23 between the part 21 and the second lower plate part 22, and the second connection parts 23 connect the second lower plate part 22 and the second upper plate part 21 of the first heat storage member 2A at the same time. , at this time, a second flow channel 24 is formed between the second upper plate portion 21 , the second lower plate portion 22 and the second connecting portion 23 , in the second flow channel 24 , a heat storage agent or Heat storage medium with higher specific heat capacity (not marked in the drawings), in this patent, heat storage medium is defined as a substance with a larger specific heat capacity than a refrigerant in a standard state, such as water, alcohol, and kerosene. The first heat storage member 2A may be extruded or machined from an aluminum material. Of course, the first heat storage member 2A may also be made of a metal with high thermal conductivity such as copper or stainless steel.

Referring specifically to FIG. 8 , the heat exchange member 1 and the first heat storage member 2A may be integrally formed. Specifically, the first heat storage member 2A is located below the heat exchange member 1 , and the first lower plate portion 12 It is integrally formed with the second upper plate portion 21 , that is, the first lower plate portion 12 of the heat exchange member 1 is also the second upper plate portion 21 of the first heat storage member 2A.

Of course, please refer to FIG. 7 specifically, the heat exchange component 1 and the first heat storage component 2A can also be fixedly connected. Specifically, the first heat storage component 2A is located below the heat exchange component 1, and the first The plate portion 12 and the second upper plate portion 21 are fixedly connected by welding or glue bonding. At this time, the first lower plate portion 12 of the heat exchange member 1 is not the second upper plate portion 21 of the first heat storage member 2A. . When the first lower plate portion 12 and the second upper plate portion 21 are fixedly connected by means of glue, it is suitable to use glue with higher heat conduction efficiency.

Since the specific heat capacity of the liquid in the second flow channel 24 is higher, compared with the refrigerant, when the temperature is raised, more heat needs to be absorbed, and when the same temperature is lowered, more heat needs to be released. , when the food with a lower temperature is placed on the defrosting plate, the temperature of the heat exchange medium in the first flow channel 14 is lower than the temperature of the heat storage medium in the second flow channel 24. At this time, the first heat storage component 2A The heat storage agent inside can provide heat for the heat exchange medium (such as liquid refrigerant) in the heat exchange component 1, and can relatively increase the evaporation rate of the liquid refrigerant and provide more gaseous refrigerant.

Since the temperature around the liquid is one of the factors for the speed of liquid evaporation, in this embodiment, a heat storage agent or a heat storage medium with a higher specific heat capacity is arranged in the first heat storage component 2A to provide the evaporation of the liquid refrigerant in the first flow channel 14. The heat is increased, and the evaporation rate of the liquid refrigerant is relatively increased.

In addition, since the refrigerant located in the first flow channel 14 will undergo gas-liquid conversion, the gas-liquid conversion will be accompanied by changes in the air pressure in the heat exchange component 1. At this time, the arrangement of the plurality of first connecting parts 13 can also enhance the exchange rate. The strength of the hot part 1 increases the service life of the thawing plate.

Of course, a plurality of second connecting portions 23 can also be provided between the second upper plate portion 21 and the second lower plate portion 22 of the first heat storage member 2A to increase the strength of the heat storage member, for example, in this embodiment Among them, a plurality of second connecting portions 23 are provided between the second upper plate portion 21 and the second lower plate portion 22 .

In addition, please refer to FIG. 8 specifically, the first flow channel 14 and the second flow channel 24 also need to be sealed to isolate the heat exchange medium located in the first flow channel 14 and the heat storage medium located in the second flow channel 24 from the outside world. Specifically, the two ends of the thawing plate located in the direction of the first flow channel 14 and the direction of the second flow channel 24 can be squeezed to seal the first flow channel 14 and the second flow channel 24 .

Of course, please refer specifically to FIG. 7 , the seals at both ends in the direction of the first flow channel 14 and the direction of the second flow channel 24 can also be in the form of end plates 3 . Specifically, the end plates 3 have a plate-like structure, the shape of which is similar to that of the thawing plate. The shapes of the ends of the first flow channel 14 and the second flow channel 24 are adapted, and the end plate 3 can be fixedly connected with the heat exchange component 1 and the first heat storage component 2A by welding or glue bonding.

Of course, at the beginning of the processing and forming of the heat exchange component 1, the one end along the direction of the first flow channel 14 can be closed. At this time, the first flow channel 14 has only one opening, and only needs to be exchanged at this time. One end of the heat component 14 is sealed, and the same is true for the first heat storage component 2A.

In addition, please refer to FIG. 4 specifically, there are protrusions or grooves on the first upper plate portion 11 toward the first flow channel 14 and the first lower plate portion 12 toward the first flow channel 14. The protrusions or grooves can be increased. The surface area of the first flow channel 14 increases the evaporation speed of the liquid refrigerant in the first flow channel 14 .

Please refer to FIGS. 9 to 10. FIG. 9 is a schematic structural diagram of a defrosting plate according to a second embodiment of the present invention; FIG. 10 is a structural schematic diagram of the second heat storage component in FIG. 9;

In order to facilitate the description of this embodiment, the same reference numerals are used for the components in this embodiment and the first embodiment that have the same structure and function. The description of each component in the first embodiment is also applicable to the second embodiment. The following The differences from the first embodiment will be described in detail.

In this embodiment, the heat storage member 2 is the second heat storage member 2B, and the second heat storage member 2B is provided at the end 15 of the heat exchange member 1. Specifically, the heat exchange member 1 includes a Four ends, the second heat storage member 2B is fixedly connected to at least one end 15 of the two ends 15 in the direction of the first flow channel 14 among the four ends, and the second heat storage member 2B is hereinafter referred to as the first flow The two end portions 15 in the direction of the channel 14 are fixedly connected as an example. At this time, the number of the second heat storage components 2B is two. It is worth noting that those skilled in the art can understand that if only one second heat storage member is provided It is also possible for the heat component 2B to be connected to one end 15 of the two ends 15 in the direction of the first flow channel 14 of the heat exchange component 1 .

In this embodiment, the heat exchange component 1 mainly includes a first upper plate portion 11 and a first lower plate portion 12 . The first upper plate portion 11 is substantially in a plate-like structure and is located substantially above the heat exchange component 1 . The lower plate portion 12 is also generally in the shape of a plate, and is located approximately below the heat exchange component 1. At the same time, at least two first connecting portions 13 are provided between the first upper plate portion 11 and the first lower plate portion 12, A connecting portion 13 is simultaneously connected to the first lower plate portion 12 and the first upper plate portion 11 of the heat exchange component 1 to be fixedly connected. For the first flow channel 14 , the heat exchange component 1 can be extruded or machined from an aluminum material. Of course, the heat exchange component 1 can also be made of a metal with high thermal conductivity such as copper or stainless steel.

The second heat storage member 2B has a substantially tubular structure and is provided with a third flow channel 25 inside. The third flow channel 25 is also filled with a heat storage agent or a heat storage medium with a high specific heat capacity (eg, water).

Specifically, the second heat storage member 2B is provided with an opening portion 26 at one end of the third flow passage 25, and the opening portion 26 is fixedly connected with the valve core 27. In addition, the axial side wall 28 of the second heat storage member 2B is provided with a The axial opening 281 is adapted to the shape of the two ends of the heat exchange component 1 along the direction of the first flow channel 14 .

During specific processing, the valve core 27 can be fixedly connected to the opening 26 of the second heat storage member 2B first, and then the axial opening 281 of the second heat storage member 2B and the heat exchange member 1 can be connected along the first flow path. The end 15 of 14 is fixedly connected, so that the heat exchange component 1 and the second heat storage component 2B are fixedly connected, and then the heat storage agent is filled into the third flow channel 25 through the valve core 27. In this processing method, the heat exchange component Before being fixedly connected with the second heat storage component 2B, the first flow channel 14 of the heat exchange component 1 has been sealed, and the specific sealing method can refer to the first embodiment.

Specifically, the heat exchange member 1 and the second heat storage member 2B can be fixedly connected by welding or glue bonding. Of course, the second heat storage member 2B can also be integrally formed with the heat exchange member by extrusion or lathe processing. The end portion 15 of the first flow channel 14 of 1, when the heat exchange component 1 and the second heat storage component 2B are fixedly connected by glue bonding, it is suitable to use glue with higher heat conduction efficiency.

Of course, the second heat storage member 2B can also be in a form without the axial opening 81 , that is, the axial side wall of the second heat storage member 2B and the two ends of the heat exchange member 1 along the first flow channel 14 are directly used. In the form of fixed connection, at this time, before the heat exchange component 1 is fixedly connected with the second heat storage component 2B, the welded end of the first flow channel 14 of the heat exchange component 1 may not be sealed.

It is worth noting that when the second heat storage component 2B is only located at one end of the heat exchange component 1 along the direction of the first flow channel 14, the other end of the heat exchange component 1 along the direction of the first flow channel 14 (not connected to the heat storage component) ) can be closed by extruding, welding or bonding the end plate 3, or at the beginning of the processing and forming of the heat exchange component 1, one end of the heat exchange component 1 along the direction of the first flow channel 14 is closed.

Of course, at the beginning of processing and forming of the heat exchange component 1, the end of the heat exchange component 1 along the direction of the first flow channel 14 is closed, and the second heat storage device is provided with both ends of the heat exchange component 1 along the direction of the first flow channel 14. The structure of the component 2B does not conflict, that is, those skilled in the art can understand that if the heat exchange component is initially designed, one end is open and the other end is closed along the direction of the first flow channel 14. The axial side walls 28 of the second heat storage member 2B are fixedly connected.

In this embodiment, the second heat storage component 2B can also provide heat for the refrigerant in the first flow channel 14, thereby relatively increasing the evaporation rate of the liquid refrigerant, providing more gaseous refrigerant, and increasing the defrosting effect of the defrosting plate.

It should be noted that the orientation nouns such as upper, lower, left and right mentioned in this embodiment are all based on the drawings of the description and are introduced for the convenience of description; Ordinal numbers such as "second" are also introduced for the convenience of description, and do not imply any limitation on any order of the components. In addition, due to the difference between some parts between the various components provided in the above two embodiments The functions are the same, so these parts are named uniformly in this manual.

The thawing plate provided by the present invention has been introduced in detail above. The principles and implementations of the present invention are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (9)

1. A thawing plate, characterized in that the thawing plate comprises a heat exchange component (1), and the heat exchange component (1) comprises a first upper plate part (11), and the first upper plate part (11). 11) A first lower plate portion (12) disposed oppositely, a first connecting portion (13) connecting the first upper plate portion (11) and the first lower plate portion (12), the first upper plate portion (12) The plate portion (11), the first lower plate portion (12) and the first connecting portion (13) form at least one first flow channel (14), and at least one of the first flow channels (14) is provided with a changer. a heat medium, the heat exchange component (1) includes two end portions (15) along the direction of the first flow channel (14); A heat storage part (2) is also included, a heat storage medium is arranged in the heat storage part (2), and the heat exchange part (1) and the heat storage part (2) are integrally formed or fixedly connected. 2. The thawing plate according to claim 1, characterized in that the heat storage member (2) comprises a first heat storage member (2A), and the first heat storage member (2A) comprises a second upper plate portion (21), a second lower plate portion (22) disposed opposite to the second upper plate portion (21), a connection between the second upper plate portion (21) and the second lower plate portion (22) The second connecting part (23), the second upper plate part (21), the second lower plate part (22) and the second connecting part (23) form at least one second flow channel (24), At least one of the second flow channels (24) is provided with a heat storage medium; The first lower plate portion (12) and the second upper plate portion (21) are fixedly connected by welding or bonding, or the first lower plate portion (12) and the second upper plate are The part (21) is integrally formed. 3. The thawing plate according to claim 1, characterized in that the heat storage part (2) comprises a second heat storage part (2B), the second heat storage part (2B) comprises a cavity, the The cavity forms a third flow channel (25), and an opening (26) located at one end of the third flow channel (25), the opening (26) is fixedly connected with the valve core (27), and the third A heat storage medium is arranged in the flow channel (25); The number of the second heat storage part (2B) is at least one, and the second heat storage part (2B) is fixedly connected with the end part (15) or integrally formed. 4. The thawing plate according to claim 3, characterized in that the second thermal storage part (2B) comprises an axial side (28) which is connected to at least one of the ends The part (15) is fixedly connected; The number of the second heat storage member (2B) is one, the second heat storage member (2B) is fixedly connected with one of the end portions (15) or integrally formed, or the second heat storage member ( 2B) the number is two, the two second heat storage parts (2B) are fixedly connected to the two end parts, or the number of the second heat storage parts (2B) is two, the One second heat storage part (2B) is fixedly connected with the one end part, and the other second heat storage part (2B) is integrally formed with the other end part. 5. The thawing plate according to claim 3 or 4, characterized in that the second heat storage part (2B) comprises an axial side wall (28) comprising an axial opening part (281), the axial opening part (281) is fixedly connected with at least one of the end parts (15). 6. The thawing plate according to claim 2, wherein the first flow channel (14) and the second flow channel (24) of the thawing plate are sealed from the outside by means of extrusion, and/or the The thawing plate further comprises an end plate part (3), the first flow channel (14) and the second flow channel (24) of the thawing plate are sealed with the outside through the end plate part (3). 7. The thawing plate according to claims 3-4, characterized in that, when the second heat storage part (2B) is fixedly connected to one of the two ends (15), the other The end portion (3) is sealed with the outside world by means of extrusion, or, the thawing plate further includes an end plate portion (3), which is fixedly connected with the heat exchange component (1) so that the The other end (3) is sealed from the outside. 8 . The thawing plate according to claim 6 , wherein the end plate portion ( 3 ) is fixedly connected with the heat exchange component ( 1 ) by welding or bonding. 9 . 9. The thawing plate according to any one of claims 1-4 and 6, wherein the first upper plate portion (11) faces the direction of the first flow channel (14) and/or the first The lower plate portion (12) is provided with protrusions or grooves in the direction of the first flow channel (14), so as to increase the surface area of the first flow channel (14).

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