CN215453298U - Temperature control plate and temperature control device - Google Patents

Abstract

A temperature control plate and a temperature control device are provided, wherein the temperature control plate comprises a bottom plate, a heat insulation plate, a reflection film, a heating film and a cover plate, the cover plate is connected with the bottom plate and encloses a containing cavity, the heat insulation plate, the reflection film and the heating film are sequentially arranged in the containing cavity, the heat insulation plate faces one side of the bottom plate, and the heating film faces one side of the cover plate; the cover plate or the bottom plate is provided with an air exhaust hole, and the cavity is exhausted through the air exhaust hole so that the cavity is vacuum. Set gradually the intracavity that holds that forms at bottom plate and apron through setting up heat insulating board, reflectance coating and heating film to bleed air through the aspirating hole and make and hold the chamber for the vacuum, can reduce the heat on the one hand and scatter and disappear to bottom plate one side, increase and transmit to apron one side, improve thermal utilization efficiency, on the other hand can reduce the calorific loss that the convection current produced, promotes the heat preservation effect.

Description

Temperature control plate and temperature control device

Technical Field

The utility model belongs to the technical field of piglet feeding, and particularly relates to a temperature control plate and a temperature control device.

Background

During pig raising, after sows live piglets, the piglets need to be kept warm to improve the survival rate. The existing heat preservation method mainly adopts a high-power electric heating lamp to irradiate the heat preservation box, and piglets are preserved in the heat preservation box. The heat preservation method has large energy consumption, and the piglings are heated unevenly, so that the excrement in the heat preservation box is difficult to clean. Also there is the mode of manufacturer's research heated board, and present heated board adopts the carbon crystal heating element to heat usually, compares the mode energy consumption of electric heat lamp and reduces to some extent, but thermal utilization efficiency is still not high enough, and the heat preservation effect is not good enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a temperature control plate and a temperature control device, which can improve the utilization efficiency of heat and improve the heat preservation effect.

In order to realize the purpose of the utility model, the utility model provides the following technical scheme:

in a first aspect, an embodiment of the present invention provides a temperature control plate, including a bottom plate, a heat insulation plate, a reflective film, a heating film, and a cover plate, where the cover plate is connected to the bottom plate and encloses a cavity, the heat insulation plate, the reflective film, and the heating film are sequentially disposed in the cavity, the heat insulation plate faces one side of the bottom plate, and the heating film faces one side of the cover plate; the cover plate or the bottom plate is provided with an air exhaust hole, and the cavity is exhausted through the air exhaust hole so that the cavity is vacuum.

In one embodiment, the heat insulation board, the reflective film and the heating film are sequentially stacked on the bottom board, and at least two adjacent structures of the heat insulation board, the reflective film, the heating film and the bottom board are fixedly connected through an adhesive member.

In one embodiment, the heating film comprises a graphene heating film and an insulating film covering the graphene heating film, the graphene heating film is used for generating uniform heat in a first preset temperature range, the first preset temperature range is suitable for piglet heat preservation, the heat insulation plate is used for reducing heat transmission to one side of the bottom plate, and the reflecting film is used for reflecting the heat to one side of the cover plate.

In one embodiment, the graphene heating film is a single sheet, and the area of one sheet of the graphene heating film is not less than 80% of the area of the insulating film; or the graphene heating membranes are arranged at intervals, and the area of the whole graphene heating membranes is not less than 80% of the area of the insulating film.

In one embodiment, a plurality of graphene heating membranes are arranged in an array and uniformly distributed on the insulating film.

In one embodiment, the graphene heating film is further used for generating uniform heat within a second preset temperature range, the second preset temperature range is larger than the first preset temperature range, and the second preset temperature range is suitable for disinfection and sterilization.

In one embodiment, one end of the cover plate, which faces away from the bottom plate, is provided with two clamping parts arranged at intervals, the two clamping parts are used for clamping a partition plate, and the partition plate is used for dividing the cover plate into two heat preservation areas.

In one embodiment, the two holding pieces are cylindrical and parallel to each other, and are perpendicular to the surface of the cover plate; the cover plate is provided with a limiting groove, and one end of each clamping piece is connected with the limiting groove in a sliding mode.

In one embodiment, the two clamping members are higher than the cover plate by a preset height, the clamping members are hollow and have openings at two ends, the limiting grooves are provided with through holes, one of the clamping members is used for allowing a power line to pass through and extend into the accommodating cavity through the through holes of the limiting grooves to be connected with the heating film, and the other clamping member is used for allowing a sensor line to pass through and extend into the accommodating cavity through the through holes of the limiting grooves to be connected with the sensor arranged in the accommodating cavity.

In a second aspect, the present invention further provides a temperature control device, including a power supply, a controller, a sensor, a power line, a sensor line, and the temperature control plate according to any one of the various embodiments of the first aspect, wherein the power supply supplies power to a heating film of the temperature control plate through the power line, the sensor is disposed in a cavity of the temperature control plate, the controller is electrically connected to the sensor through the sensor line, the sensor detects a temperature of the temperature control plate and outputs a temperature electrical signal to the controller, and the controller controls whether the power supply supplies power to the heating film according to the temperature electrical signal to adjust the temperature of the temperature control plate.

According to the temperature control plate provided by the utility model, the heat insulation plate, the reflection film and the heating film are sequentially arranged in the accommodating cavity formed by the bottom plate and the cover plate, and air is pumped through the air pumping hole to ensure that the accommodating cavity is vacuum, so that on one hand, the heat loss to one side of the bottom plate can be reduced, the transmission to one side of the cover plate is increased, the utilization efficiency of heat is improved, on the other hand, the heat loss generated by convection can be reduced, and the heat insulation effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic cross-sectional view of a temperature control plate according to an embodiment;

FIG. 2 is a schematic cross-sectional exploded view of a temperature control plate according to an embodiment;

FIG. 3 is a schematic plan view of a heating film according to an embodiment;

FIG. 4 is a schematic top view of a temperature control plate according to an embodiment;

FIG. 5 is a schematic side view of a temperature control plate according to an embodiment;

fig. 6 is a schematic perspective view of a temperature control plate according to an embodiment.

Description of reference numerals:

10-a base plate, 11-a first surface, 15-an adhesive element;

20-an insulating board, 21-a second surface, 22-a third surface;

30-reflective film, 31-fourth surface, 32-fifth surface;

40-heating a film, 41-a sixth surface, 42-a seventh surface, and 45-a graphene heating film;

50-cover plate, 501-pumping hole, 502-limiting groove, 51-main body part, 52-extension part, 53-cavity, 54-eighth surface, 55-ninth surface, 56-microstructure, 57-first bulge, 58-second bulge and 59-clamping piece;

61-power line, 62-sensor line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 and 2, and to fig. 1 and 2, an embodiment of the present invention provides a temperature control plate, which includes a base plate 10, a heat insulation plate 20, a reflective film 30, a heating film 40, and a cover plate 50. The cover plate 50 is connected with the base plate 10 and encloses a cavity 53, the heat insulation plate 20, the reflecting film 30 and the heating film 40 are sequentially arranged in the cavity 53, the heat insulation plate 20 faces one side of the base plate 10, the heating film 40 faces one side of the cover plate 50, and the reflecting film 30 is arranged between the heat insulation plate 20 and the heating film 40. The base plate 10 and the cover plate 50 form an outer shell of the temperature control panel, and serve to support and protect the respective plates or films inside. The base plate 10 is intended to be in contact with the ground and the surface of the cover plate 50 facing away from the base plate 10 forms a support surface for supporting piglets. Moreover, the cover plate 50 is a good heat conductor, and the cover plate 50 is heated to form a temperature environment suitable for the activity or sleep of the piglets. The material of the bottom plate 10 and the cover plate 50 has certain rigidity, and meanwhile, the cover plate 50 has good heat conduction capability, and optionally, the bottom plate 10 and the cover plate 50 are both made of plastic materials, and the two materials can be made of the same material or different materials. The heat insulation plate 20 is used to reduce heat transmission to one side of the base plate 10 and heat dissipation to one side of the base plate 10. The material of the insulating panel 20 may be foam. The reflective film 30 is used to reflect heat to one side of the cover plate 50, and increase heat transfer to one side of the cover plate 50 while reducing heat loss to one side of the base plate 10, thereby improving heat utilization efficiency. The material of the reflective film 30 may be aluminum foil. The heating film 40 serves to generate heat.

The cover plate 50 or the bottom plate 10 is provided with an air exhaust hole 501, the air exhaust hole 501 is communicated with the cavity 53, and the cavity 53 is exhausted through the air exhaust hole 501, so that the cavity 53 is vacuum. Specifically, the air pumping hole 501 may be provided with an air valve, and the air pump may be connected to the air valve, wherein the air valve is opened during air pumping, and is closed after air pumping is completed, so as to ensure the sealing of the cavity 53. When the cavity 53 is vacuum, the heat loss caused by convection can be reduced, and the overall heat preservation effect of the temperature control plate can be improved.

According to the temperature control plate provided by the embodiment of the utility model, the heat insulation plate 20, the reflection film 30 and the heating film 40 are sequentially arranged in the containing cavity formed by the bottom plate 10 and the cover plate 50, and air is extracted through the air extraction hole 501 to ensure that the containing cavity 53 is vacuum, so that on one hand, heat loss to one side of the bottom plate 10 can be reduced, transmission to one side of the cover plate 50 is increased, the utilization efficiency of heat is improved, on the other hand, heat loss generated by convection can be reduced, and the heat insulation effect is improved.

With reference to fig. 1 and fig. 2, the base plate 10 is a flat plate, the cover plate 50 includes a main body 51 and an extension 52, the main body 51 is a flat plate, the extension 52 is smoothly connected to the peripheral edge of the main body 51, and the extension 52 extends toward one side of the main body 51, such that the main body 51 and the extension 52 together enclose an accommodating groove. The extension portion 52 is connected with the base plate 10, the base plate 10 encloses the accommodating groove to form an accommodating cavity 53, and the extension portion 52 and the base plate 10 can be bonded, clamped, screwed and the like in any feasible manner without limitation. It should be understood that the connection between the base plate 10 and the cover plate 50 should be seamless, so that the cavity 53 is a sealed chamber, and external liquid dung and the like are prevented from entering the cavity 53 to affect the reliability of the electrical connection of the internal devices. The extension part 52 and the main body part 51 are in smooth transition, so that accidental injury of piglets caused by sharp corners is avoided. The flat structure of the base plate 10 and the main body 51, and the cover plate 50 is connected to the base plate 10 through the extension portion 52, on one hand, the manufacture is convenient, only the cover plate 50 needs to be manufactured properly, and the base plate 10 does not need to be processed. On the other hand, the novel piglet support also has a simple and stable structure, the contact area of the bottom plate 10 and the ground is large, the support effect is good, and the surface of the cover plate 50, which is back to the bottom plate 10, forms a support plane, so that the piglet can move conveniently.

The air suction hole 501 for vacuumizing can be opened at any position of the main body part 51, the extension part 52 or the bottom plate 10, preferably, the air suction hole 501 is opened on the extension part 52, compared with the bottom plate 10, the air suction hole is not in contact with the ground, compared with the main body part 51, the air suction hole does not affect the movement of piglets, avoids interference with other structures, and facilitates the pipeline connection and air suction operation of the air suction machine.

Referring to fig. 1 and 2, the heat insulation board 20, the reflective film 30, and the heating film 40 are sequentially stacked on the base plate 10, and at least two adjacent structures of the heat insulation board 20, the reflective film 30, the heating film 40, and the base plate 10 are connected and fixed by the adhesive 15.

The base plate 10 has a first surface 11 facing the cover plate 50, the heat insulation plate 20 has opposite second and third surfaces 21 and 22, the second surface 21 faces the base plate 10, the reflective film 30 has opposite fourth and fifth surfaces 31 and 32, the fourth surface 31 faces the base plate 10, the heating film 40 has opposite sixth and seventh surfaces 41 and 42, the sixth surface 41 faces the base plate 10, the body portion 51 of the cover plate 50 has opposite eighth and ninth surfaces 54 and 55, the eighth surface 54 faces the base plate 10, and the ninth surface 55 is used for forming a support surface for supporting piglets.

Alternatively, the first surface 11 and the second surface 21 may be secured by an adhesive 15, the third surface 22 and the fourth surface 31 may be secured by an adhesive 15, the fifth surface 32 and the sixth surface 41 may be secured by an adhesive 15, and the seventh surface 42 and the eighth surface 54 may be secured by an adhesive 15.

Alternatively, substantially the same as the previous embodiment, except that the reflective film 30 and the thermal insulation board 20 may be integrated, i.e., the third surface 22 and the fourth surface 31 coincide, in which case the third surface 22 and the fourth surface 31 are not fixed by the adhesive member 15. Alternatively, the reflective film 30 and the heating film 40 may be integrated, or the heat insulating board 20, the reflective film 30 and the heating film 40 may be integrated.

In the above embodiments of the connection and fixation by the adhesive member 15, the material of the adhesive member 15 is glue, and the adhesive member 15 has a certain heat resistance to prevent the heating film 40 from being baked and melted when heated. When the adhesive member 15 is specifically arranged, an adhesive layer covering the entire surface may be disposed between each two surfaces, or a block of adhesive, an adhesive tape, etc. may be partially arranged on the surface, and how to arrange the adhesive member is not limited as long as the two surfaces can be adhered and fixed.

The structures are connected and fixed through the pasting piece 15, the connection is stable, the weight of the temperature control plate is hardly increased, the assembly process is simple, and the structures are only required to be sequentially adhered through the pasting piece 15 step by step.

Referring to fig. 3, the heating film 40 includes a graphene heating film 45 and an insulating film covering the graphene heating film 45, the graphene heating film 45 is used for generating uniform heat within a first preset temperature range, and the first preset temperature range is suitable for piglet heat preservation. The insulating film is used for protecting the graphene heating film 45, so that a stable and reliable heating structure is formed. The first preset temperature can be set to be within the temperature range for keeping the piglets warm, can be adjusted according to seasons, regions, piglet ages and the like, can be specifically set to be 15-40 ℃, and can be preferably set to be 20-35 ℃, and of course, can be set more finely according to needs without limitation. The insulating film may be made of a material having heat resistance and thermal conductivity, and optionally, the insulating film is made of plastic.

Compared with conventional alloy materials, carbon fiber wires and other heating structures, the graphene heating film 45 has more excellent performance, and is reflected in that temperature adjustment is more sensitive, heat can be instantly sensed, heating is uniform, and the performance is stable and hardly attenuated. The graphene material has been widely researched and applied at present, and the material cost is not high, so that the graphene heating film 45 made of the graphene material in the embodiment can have more sensitive and fine temperature regulation performance, can generate uniform heat, and has high reliability and good application prospect.

In one embodiment, referring to fig. 3, the graphene heating film 45 is a single piece, and the area of one graphene heating film 45 is not less than 80% of the area of the insulating film. The graphene heating film 45 can be connected with a power line 61 for external power supply through an electrode, and the insulating film is simple in structure in a form of being provided with a whole film.

In another embodiment, referring to fig. 3, the graphene heating sheets 45 are multiple, the multiple graphene heating sheets 45 are disposed at intervals, and the area of the whole of the multiple graphene heating sheets 45 is not less than 80% of the area of the insulating film. The plurality of graphene heating membranes 45 can be connected with the power line 61 of the external power supply by arranging an electrode at one edge of the graphene heating membrane 45, and other graphene heating membranes 45 can be connected with each other through a wire, so that the graphene heating membranes 45 are electrically connected. The form that has a plurality of graphite alkene heating diaphragm 45 in the insulating film makes each graphite alkene heating diaphragm 45's simple structure, compares in the insulating film the mode that has a graphite alkene heating diaphragm 45, can reduce jumbo size graphite alkene heating diaphragm 45's the manufacturing degree of difficulty, reduce cost. Optionally, the plurality of graphene heating membranes 45 are arranged in an array and uniformly distributed on the insulating film, so as to improve the effect of uniform heating temperature.

The area of the graphene heating film 45 is not less than 80% of the area of the insulating film, so that the graphene heating film 45 has a large heating area and can output a large-area heat preservation area outwards, and the piglet has a heat preservation effect when moving at a plurality of positions on the cover plate 50.

Optionally, the graphene heating film 45 is further configured to generate uniform heat within a second preset temperature range, the second preset temperature range is greater than the first preset temperature range, and the second preset temperature range is suitable for disinfection and sterilization. Pig farms need to be cleaned regularly or irregularly to avoid pig diseases caused by environmental pollution, and the temperature control plates need to be disinfected and sterilized. On the basis of traditional modes such as spraying disinfection and sterilization liquid medicine, the disinfection and sterilization effect can be realized through the disinfection and sterilization function of the temperature control plate. Specifically, a high-temperature sterilization mode is adopted, the heating plate is heated to a second preset temperature, and bacteria and viruses are killed. The second preset temperature is set as the temperature range for disinfecting and sterilizing piglets, can be adjusted according to seasons, regions, piglet ages and the like, specifically can be set to be 50-100 ℃, preferably 60-80 ℃, and can be set more finely according to needs without limitation.

Because the temperature control board needs to work under the higher second preset temperature, consequently, each structure of temperature control board all need can bear this second preset temperature, when the material that the temperature bearing capacity is relatively poor is used, can increase temperature bearing capacity in modes such as high temperature resistant coating at the material surface. It can be understood that when the piglet is disinfected and sterilized, the piglet is driven away from the temperature control plate to avoid scalding.

Graphene materials can carry out accurate temperature regulation control, consequently, generate heat the diaphragm 45 through control graphite alkene and produce high temperature sterilization at the second and predetermine temperature range and need not do special treatment to graphite alkene diaphragm 45 that generates heat, and use graphite alkene diaphragm 45 that generates heat to heat the mode of disinfecting, the effect is showing, can kill virus and bacterium, the protection piglet also can save traditional operation of spraying liquid medicine and disinfecting, practices thrift manpower and time.

Referring to fig. 4, the surface of the cover plate 50 facing away from the base plate 10 is provided with a plurality of rugged microstructures 56. The microstructures 56 may be a plurality of protrusions or grooves, a plurality of protrusions or grooves may form a group, the cover plate 50 is provided with a plurality of groups of the microstructures 56, and the plurality of groups of the microstructures 56 may be uniformly arranged on the cover plate 50, may be arranged in an array, or may be arranged in other ways. The micro-structure 56 is intended to prevent slipping, which may occur when a piglet is walking on the cover plate 50.

The microstructure 56 of the cover plate 50 is formed on the main body 51 of the cover plate 50, the extension portion 52 may not be provided, and the main body 51, the extension portion 52 and the microstructure 56 may be an integrated structure and may be manufactured by an injection molding process.

Referring to fig. 4, one end of the cover plate 50 facing away from the bottom plate 10 is provided with two clamping members 59 arranged at intervals, the two clamping members 59 are used for clamping a partition plate (not shown), and the partition plate is used for dividing the cover plate 50 into two heat preservation areas. The cover plate 50 is not too small in size, so that economic loss is avoided, and if a small number of piglets move on the larger cover plate 50, space is wasted, so that the cover plate 50 can be divided into two heat preservation areas by the partition plate, the heat preservation effects of the two heat preservation areas are the same, the heat preservation requirements of at least more than ten piglets (two-nest piglets) can be met, and the space of the cover plate 50 is effectively utilized.

The catching pieces 59 are formed on the main body part 51 of the cover plate 50, the main body part 51 may be a rectangular structure, the catching pieces 59 are disposed at a middle area of a short side of one side of the rectangular shape of the main body part 51, and a gap formed between the two catching pieces 59 is used to accommodate the partition plate. Specifically, the separating plate stands on the main body part 51, one side of the separating plate is clamped between two clamping pieces 59, the other side of the separating plate can be fixed through other connecting and fixing structures, and the two clamping pieces 59 play roles in positioning and limiting. The catch 59 may also be of unitary construction with the cover 50.

In one embodiment, referring to fig. 4 and fig. 5, a surface of the main body 51 facing away from the base plate 10 is provided with a first protrusion 57 and a second protrusion 58, the first protrusion 57 is used for providing a first channel for passing the power line 61, the second protrusion 58 is used for providing a second channel for passing the sensor line 62, and the first channel and the second channel are opened on the main body 51 or the extension 52.

The first channel and the second channel are both used for communicating the cavity 53 of the temperature control plate with the outside, and the specific form can be through holes. The power line 61 passes through the first passage to be connected with the heating film 40 in the cavity 53, the sensor line 62 passes through the second passage to be connected with the sensor in the cavity 53, and the sensor can be arranged on the heating film 40 or at other positions in the cavity 53. The sensor is used to measure the temperature in the chamber 53.

The first and second bosses 57, 58 are provided to reinforce the structural strength around the first and second channels. Still be equipped with structures such as sealing washer in first passageway and second passageway department to make appearance chamber 53 isolated with external, avoid liquid dung etc. to get into through first passageway and second passageway and hold chamber 53.

The first protruding portion 57 and the second protruding portion 58 are disposed on the main body 51 at the same time, and specifically, may be disposed on a surface of the main body 51 facing away from the base plate 10, or at a position where the main body 51 is connected to and transited with the extending portion 52. The first passage and the second passage may be provided on the main body portion 51 or the extension portion 52 at the same time, or one may be provided on the main body portion 51 and the other on the extension portion 52.

In one embodiment, referring to fig. 6, the two retainers 59 are cylindrical and parallel to each other, and are perpendicular to the surface of the cover plate 50. Referring to fig. 4 and 6, the cover plate 50 is provided with a limiting groove 502, and one end of each of the two clamping members 59 is slidably connected with the limiting groove 502. Because the different sizes of the age of pigs, on the temperature control plates with different sizes, sometimes the separation plate needs to be separated into two areas, sometimes the separation plate needs to be removed, and sometimes the separation plates with different thicknesses need to be replaced, so that the fixed clamping piece 59 is difficult to meet the installation requirement of the separation plate. In this embodiment, the retaining member 59 is configured to be slidable in the limiting groove 502, that is, the retaining member 59 and the cover plate 50 are separable structures, so that the retaining member 59 can be detached from the cover plate 50 when the partition plate is not needed, and when the partition plate has different thicknesses, the retaining member 59 can be slid in the limiting groove 502 to keep the retaining member 59 always retaining the partition plate. It will be understood that after the retainer 59 slides and retains the partition plate stably, the retainer 59 is fixed, and the retainer 59 is fixed to the cover plate 50 by bonding or the like. When the position of the retainer 59 needs to be adjusted later, the retainer 59 is separated from the cover plate 50 by heating to melt the adhesive.

In one embodiment, referring to fig. 6, the height of the two retainers 59 relative to the cover plate 50 is greater than a predetermined height. The preset height can be specifically set according to the breed, the age and the like of the piglet, and when the piglet needs to move on the temperature control plate, the piglet does not touch one end of the clamping piece 59 far away from the cover plate 50. The clamping pieces 59 are of a hollow structure, two ends of each clamping piece are open, the limiting grooves 502 are provided with through holes, one clamping piece 59 is used for enabling the power line 61 to penetrate through the through holes of the limiting grooves 502 and extend into the cavity 53 to be connected with the heating film 40, and the other clamping piece 59 is used for enabling the sensor line 62 to penetrate through the through holes of the limiting grooves 502 and extend into the cavity 53 to be connected with the sensor arranged in the cavity 53.

Referring to fig. 1 to 6, an embodiment of the present invention further provides a temperature control device, which includes a power supply, a controller, a sensor, a power line 61, a sensor line 62 and a temperature control board provided in the embodiment of the present invention, wherein the power supply supplies power to the heating film 40 of the temperature control board through the power line 61, the sensor is disposed in the cavity 53 of the temperature control board, the controller is electrically connected to the sensor through the sensor line 62, the sensor detects the temperature of the temperature control board and outputs a temperature electrical signal to the controller, and the controller controls whether the power supply supplies power to the heating film 40 according to the temperature electrical signal to adjust the temperature of the temperature control board.

The power supply can be mains supply or a storage battery, and when the power supply is mains supply, the power supply of the temperature control device of the embodiment can be an electrified power strip. The controller may be a Programmable Logic Controller (PLC), a microcomputer, or the like. The sensor is a temperature sensor, and any available sensor for detecting temperature can be adopted. The power supply line 61 and the sensor line 62 are metal wires coated with an insulating adhesive material. The power line 61 penetrates through the temperature control plate to be connected with the heating film 40 in the temperature control plate to supply power to the heating film 40 to generate heat, and the sensor line 62 penetrates through the temperature control plate to be connected with the sensor in the temperature control plate and is used for transmitting a temperature electric signal detected by the sensor. The controller controls the power supply according to the temperature electric signal to determine whether to heat or not so as to adjust the temperature of the temperature control plate. For example, when the temperature needs to be maintained, the controller controls the power supply to supply power to the heating film 40 and heat the heating film 40 to increase the temperature when the temperature electric signal indicates that the temperature of the temperature control plate is lower than the first preset temperature range according to the temperature electric signal detected by the sensor, and controls the power of the power supply to decrease when the temperature electric signal indicates that the temperature of the temperature control plate reaches the first preset temperature range so as to maintain the first preset temperature. When the disinfection and sterilization are needed, the controller controls the power supply to supply power with higher power, so that the temperature of the heating film 40 is increased to a second preset temperature, and when heat preservation is needed after the disinfection and sterilization is completed, the power of the controller controls the power supply to be reduced until the temperature of the temperature control plate is reduced to a first preset temperature and is maintained at the first preset temperature. When the heat preservation or the disinfection and sterilization are not needed, the controller controls the power supply to be powered off.

The temperature control device of this embodiment, through the accuse temperature board that adopts this embodiment, set gradually the intracavity that holds that forms at bottom plate 10 and apron 50 through setting up heat insulating board 20, reflectance coating 30 and heating film 40 to bleed through aspirating hole 501 and make and hold chamber 53 for the vacuum, can reduce the heat on the one hand and scatter and disappear to bottom plate 10 one side, increase to apron 50 one side transmission, improve thermal utilization efficiency, on the other hand can reduce the calorific loss that the convection current produced, promote the heat preservation effect.

While the utility model has been described with reference to a number of embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims (10)

1. A temperature control plate is characterized by comprising a bottom plate, a heat insulation plate, a reflection film, a heating film and a cover plate, wherein the cover plate is connected with the bottom plate and encloses a cavity; the cover plate or the bottom plate is provided with an air exhaust hole, and the cavity is exhausted through the air exhaust hole so that the cavity is vacuum.

2. The temperature control plate according to claim 1, wherein the heat insulating plate, the reflective film, and the heating film are sequentially stacked on the base plate, and at least two adjacent structures of the heat insulating plate, the reflective film, the heating film, and the base plate are connected and fixed by an adhesive member.

3. The temperature control plate according to claim 1, wherein the heating film comprises a graphene heating film and an insulating film covering the graphene heating film, the graphene heating film is used for generating uniform heat in a first preset temperature range, the first preset temperature range is suitable for piglet heat preservation, the heat insulation plate is used for reducing heat transmission to one side of the bottom plate, and the reflection film is used for reflecting heat to one side of the cover plate.

4. The temperature control plate according to claim 3, wherein the graphene heating sheet is a single sheet, and the area of one sheet of the graphene heating sheet is not less than 80% of the area of the insulating film; or the graphene heating membranes are arranged at intervals, and the area of the whole graphene heating membranes is not less than 80% of the area of the insulating film.

5. The temperature control plate according to claim 3, wherein a plurality of the graphene heating films are arranged in an array and uniformly distributed on the insulating film.

6. The temperature control plate of claim 3, wherein the graphene heating membrane is further configured to generate uniform heat within a second predetermined temperature range, the second predetermined temperature range being greater than the first predetermined temperature range, the second predetermined temperature range being suitable for sterilization.

7. The temperature control plate according to claim 1, wherein the cover plate has two spaced-apart holding members at an end thereof facing away from the bottom plate, the two holding members being adapted to hold a partition plate, the partition plate being adapted to divide the cover plate into two heat-insulating regions.

8. The temperature control plate of claim 7, wherein the two retainers are cylindrical and parallel to each other and perpendicular to the surface of the cover plate; the cover plate is provided with a limiting groove, and one end of each clamping piece is connected with the limiting groove in a sliding mode.

9. The temperature control plate according to claim 8, wherein the height of the two clamping members relative to the cover plate is greater than a predetermined height, the clamping members are hollow and open at both ends, the limiting groove is provided with a through hole, one of the clamping members is used for a power line to pass through and extend into the accommodating chamber through the through hole of the limiting groove to be connected with the heating film, and the other clamping member is used for a sensor line to pass through and extend into the accommodating chamber through the through hole of the limiting groove to be connected with a sensor arranged in the accommodating chamber.

10. A temperature control device, comprising a power supply, a controller, a sensor, a power line, a sensor line and the temperature control plate of any one of claims 1 to 9, wherein the power supply supplies power to the heating film of the temperature control plate through the power line, the sensor is arranged in the cavity of the temperature control plate, the controller is electrically connected with the sensor through the sensor line, the sensor detects the temperature of the temperature control plate and outputs a temperature electric signal to the controller, and the controller controls whether the power supply supplies power to the heating film according to the temperature electric signal to adjust the temperature of the temperature control plate.

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