CN108151433B

CN108151433B - Temperature control method, temperature control device, refrigeration equipment and readable storage medium

Info

Publication number: CN108151433B
Application number: CN201711168745.9A
Authority: CN
Inventors: 乔庆军; 李俊; 耿秀华; 董超; 孙巍; 毕道国
Original assignee: Guangzhou Midea Hualing Refrigerator Co Ltd
Current assignee: Guangzhou Midea Hualing Refrigerator Co Ltd
Priority date: 2017-11-21
Filing date: 2017-11-21
Publication date: 2020-07-10
Anticipated expiration: 2037-11-21
Also published as: CN108151433A

Abstract

The invention provides a temperature control method, a temperature control device, refrigeration equipment and a readable storage medium, wherein the temperature control method comprises the following steps: when a temperature adjusting instruction is detected and received, acquiring the real-time temperature in the heat preservation box body; determining whether to execute temperature regulation operation on the heat preservation box body according to the relation between the real-time temperature and the target regulation temperature, and determining the type of the temperature regulation operation when the temperature regulation operation is determined to be executed; and performing temperature regulation operation according to the specified temperature change rate and the type of the temperature regulation operation, wherein the type of the temperature regulation operation comprises temperature rising operation and temperature lowering operation. According to the technical scheme, the temperature in the box is approximately linearly increased or decreased, different temperature change rates are determined by setting different linear slopes, and the influence on the activity of the carrier in the box due to temperature change is reduced.

Description

Temperature control method, temperature control device, refrigeration equipment and readable storage medium

Technical Field

The invention relates to the field of household appliances, in particular to a temperature control method, a temperature control device, a refrigeration device and a computer readable storage medium.

Background

When purifying a biological product or a blood product, the product needs to be frozen in a low-temperature environment, and then dehydrated and purified.

In the related art, the biological products or blood products are usually placed in a refrigeration device such as an ultra-low temperature refrigerator, the temperature of the ultra-low temperature refrigerator is generally below-86 ℃, and the biological products or blood products have the following defects when taken out:

after the product is taken out of the ultra-low temperature refrigerator, the product is directly placed at room temperature, so that the temperature rises suddenly, and the sudden change of the temperature can influence the activity of the biological product and even cause the change.

Disclosure of Invention

In order to solve at least one of the above technical problems, an object of the present invention is to provide a temperature control method.

Another object of the present invention is to provide a temperature control device.

It is a further object of the present invention to provide a refrigeration apparatus.

It is yet another object of the present invention to provide a computer-readable storage medium.

In order to achieve the above object, an embodiment of a first aspect of the present invention proposes a temperature control method, including: when a temperature adjusting instruction is detected and received, acquiring the real-time temperature in the heat preservation box body; determining whether to execute temperature regulation operation on the heat preservation box body according to the relation between the real-time temperature and the target regulation temperature, and determining the type of the temperature regulation operation when the temperature regulation operation is determined to be executed; and performing temperature regulation operation according to the specified temperature change rate and the type of the temperature regulation operation, wherein the type of the temperature regulation operation comprises temperature rising operation and temperature lowering operation.

According to the technical scheme, after the carrier is loaded into the heat preservation box body or before the carrier is taken out, when a temperature regulation instruction is detected and received, the real-time temperature in the heat preservation box body is collected, and when the temperature regulation operation is determined to be executed according to the real-time temperature and the target regulation temperature, the temperature regulation operation is specified according to the specified temperature change rate, when the specified temperature change rate is small, the approximately linear rise or fall of the temperature in the box body is realized, different temperature change rates are determined by setting different linear slopes, and the influence of the activity of the carrier in the box body due to the temperature change is further reduced.

The target adjusting temperature can be the ambient temperature of the heat preservation box collected by the ambient temperature sensor, or the preset temperature set by a user.

Specifically, when a carrier, such as a biological product or a blood product, is placed in a heat preservation box, the heat preservation box is placed in a deep freezing chamber, an air inlet is formed in the heat preservation box, an electric air door is arranged on the air inlet, a fan is arranged corresponding to the electric air door, when the electric air door is opened, heat exchange is carried out with the deep freezing chamber through air flow circulation, slow temperature reduction operation is carried out, freezing of the product is achieved, before the biological product or the blood product needs to be taken out, the deep freezing chamber is switched to a normal temperature environment, heat exchange is carried out with the normal temperature environment through air flow circulation, and slow temperature rise operation is carried out, so that influence on product activity caused by temperature shock can be prevented.

The larger the temperature change rate is, the less time is used from the current real-time temperature in the heat-insulating box body to the target adjusting temperature, the smaller the temperature change rate is, the more time is used from the current real-time variable temperature value target adjusting temperature in the heat-insulating box body, and the number of temperature adjusting cycles required by a user is determined by selecting different temperature change rates.

In addition, the temperature control method in the above embodiment provided by the present invention may further have the following additional technical features:

in the above technical solution, preferably, the temperature adjustment operation is executed according to a specified temperature change rate and a type of the temperature adjustment operation, and when the type of the temperature adjustment operation is a temperature increase operation, the method specifically includes the following steps: determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to heat the heat preservation box body; when a variable temperature value corresponding to the real-time temperature rise temperature change rate is detected, the electric air door and the fan are controlled to be closed until the next cycle period is started; and repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature, wherein the air inlet duct extends to the heating cavity.

In the technical scheme, one unit time length is determined as the period time length of one cycle period, the cycle is timed, starting at the moment of entering a cycle period, opening the electric air door, controlling the fan to start running, so as to heat the heat preservation box body, the heat preservation box body can realize preset temperature rise in a cycle period, when the time for finishing the preset temperature rise is less than the unit time length, the electric air door and the fan are both closed until entering the next cycle period, after a plurality of periodic cycles, the real-time temperature reaches the target regulation temperature, so as to realize the approximately linear temperature rise of the heat preservation box body according to the specified temperature change rate, meet the temperature rise requirements of different rates, when the carrier in the heat preservation box body is a biological product, the influence of temperature change on the activity of the biological product is reduced through approximate linear temperature rise, and therefore the applicability of carrier storage of the heat preservation box body is improved.

The target adjustment temperature may be the same as the detected real-time temperature, or may have a smaller preset deviation value, for example, a deviation value less than or equal to 1 ℃.

The number of cycles of the cycle period is determined by the temperature difference between the real-time temperature and the target regulation temperature and the specified temperature change rate.

When the heating operation is executed, the electric air door and the fan are opened to convey hot air into the heat insulation box body so as to heat the heat insulation box body, and the heat source can be provided by the heat dissipation of the condenser.

In addition, when a temperature adjusting instruction is received through timing detection of the first temperature sensor, the real-time temperature in the heat preservation box body can be acquired, the instruction effect of the compressor is adjusted in real time, the electric air door is opened long in the slow temperature rising process, and the fan runs continuously, so that the opening and closing frequency of the electric air door and the stopping and opening frequency of the fan are reduced.

In any of the above technical solutions, preferably, the temperature adjustment operation is performed according to a specified temperature change rate and a type of the temperature adjustment operation, and when the type of the temperature adjustment operation is a temperature reduction operation, the method specifically includes the following steps: determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to refrigerate the heat preservation box body; when a variable temperature value corresponding to the real-time temperature drop temperature change rate is detected, the electric air door and the fan are controlled to be closed until the next cycle period is started; and repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature, wherein the air inlet duct extends to the refrigeration cavity.

In the technical scheme, the unit time length is determined as the period time length of a cycle period, the cycle is timed, the electric air door is opened at the moment of entering the cycle period, the fan is controlled to start to operate, the heat preservation box body is refrigerated, the heat preservation box body can realize preset cooling in the cycle period, the electric air door and the fan are both closed until the next cycle period is entered when the preset cooling time is shorter than the unit time length, after a plurality of cycle periods are cycled, the real-time temperature reaches the target regulation temperature, the heat preservation box body realizes approximate linear cooling according to the specified temperature change rate, the cooling requirements of different rates are met, and meanwhile, the requirement of partial carrier slow freezing is met.

When the cooling operation is executed, cold air is conveyed into the insulation box body by opening the electric air door and the fan, so that the insulation box body is refrigerated, and a cold source can be provided by heat dissipation of the evaporator.

In any of the above technical solutions, preferably, the refrigeration equipment is further provided with a compressor, and the temperature control method further includes: and determining the running power of the compressor according to the temperature change rate, so that the time length required for realizing the temperature change and temperature change value in each period is less than or equal to unit time.

In the technical scheme, the running power of the compressor is determined according to the temperature change rate, so that the heat preservation box body can realize preset temperature rise or temperature reduction in a cycle period, and the requirement of linear or approximately linear temperature change is met.

In any of the above technical solutions, preferably, the target regulation temperature is an ambient temperature of the thermal insulation box.

Specifically, through set up second temperature sensor in the heat preservation box outside, and be connected electrically between second temperature sensor and the control circuit board, so that the ambient temperature that second temperature sensor gathered can feed back to control circuit board, so as to regard ambient temperature as target regulation temperature, confirm ambient temperature as target regulation temperature, make the carrier realize evenly rising to ambient temperature according to appointed temperature change rate before being taken out, when the carrier is biological product, can make biological product adapt to external environment fast, and then reduce the influence to biological product activity because the abrupt change in temperature after taking out.

Specifically, taking a biological product as an example, after the biological product is put into the incubator body, the temperature control method is started, the first temperature sensor acquires the real-time temperature in the incubator body, the incubator body is refrigerated according to the real-time temperature in the incubator body and a preset storage temperature to realize low-temperature storage, when the biological product needs to be taken out, the second temperature sensor acquires the real-time temperature in the second incubator body, the second temperature sensor acquires the ambient temperature, the control circuit board controls the slow temperature rise of the incubator body according to the real-time temperature and the ambient temperature in the second incubator body, for example, the temperature rise rate is 1 ℃/min, the electric air door is opened, the fan operates to convey heat flow into the sealed cavity, when the first temperature sensor detects that the temperature change value is increased by 1 ℃, the electric air door is closed, the fan stops working, and when the PCB reaches one minute, the electronic air door is opened again, and the fan begins the operation, and the circulation is realized through inlet air channel and return air passageway to the distinguished and admirable, and so reciprocal, real-time temperature in the insulation box reaches ambient temperature, and the air door is normally opened, and the motor is out of work, can take out biological product this moment.

In any one of the above technical solutions, preferably, the repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature further includes: when the difference between the real-time temperature and the ambient temperature is detected to be smaller than the temperature variation value, controlling the electric air door and the fan to be continuously opened for a preset time period, and continuously detecting the variation of the real-time temperature in the preset time period; and controlling to close the fan when the detected variation is smaller than a temperature difference threshold value, wherein the electric air door is continuously in an opening state, and the temperature difference threshold value is smaller than or equal to 1/5 of the temperature change value.

In the technical scheme, when detecting that the difference between the real-time temperature and the ambient temperature is smaller than the temperature change value, the real-time temperature is close to the ambient temperature, the heat exchange efficiency between the heat preservation box body and the outside is reduced, the electric air door is controlled to be continuously opened at the moment, and the fan is controlled to continuously operate.

In addition, when the variation of the temperature is detected to be a large value, for example, larger than the temperature difference threshold, the temperature changing operation is continued.

Wherein, the fan can be opened and closed synchronously with the compressor.

In any of the above technical solutions, preferably, the method further includes: when the fan is controlled to be closed and the electric air door is in an open state, acquiring real-time temperature according to acquisition frequency to determine a first temperature difference value between the temperature and the ambient temperature; and determining whether to start the fan or not according to the first temperature difference value.

In the technical scheme, after the heat preservation box body enters a constant-temperature storage stable state, the real-time temperature of the heat preservation box body is regularly collected according to the collection frequency so as to detect the temperature change of the heat preservation box body, when the temperature change value is detected to be large, the fan is continuously started to perform air flow circulation so as to perform variable-temperature operation, and the stability of the temperature environment in the heat preservation box body is improved.

Specifically, the acquisition frequency may be 1 time/5 min.

In any of the above technical solutions, preferably, determining whether to perform a temperature adjustment operation on the thermal insulation box according to a relationship between the real-time temperature and the target adjustment temperature, and determining a type of the temperature adjustment operation when determining to perform the temperature adjustment operation, specifically includes the following steps: when the real-time temperature is higher than the target adjusting temperature and a second temperature difference value between the real-time temperature and the target adjusting temperature is detected to be higher than or equal to a temperature threshold value, determining to perform cooling operation on the heat preservation box body; and when the real-time temperature is less than the target adjusting temperature and a third temperature difference value between the target adjusting temperature and the real-time temperature is detected to be greater than or equal to a temperature threshold value, determining to perform heating operation on the heat preservation box body, wherein the temperature threshold value is a positive number.

In the technical scheme, whether the temperature-changing operation is executed or not is determined by detecting the relative magnitude between the real-time temperature and the target adjusting temperature and the relationship between the second temperature difference value between the real-time temperature and the target adjusting temperature and the temperature threshold, and the temperature-changing operation is particularly heating operation or cooling operation, so that the automatic starting of the function of the temperature-changing operation is realized, and the frequent opening and closing of the fan and the electric fan caused by periodic circulation is avoided by setting the temperature threshold.

When the second temperature difference value is smaller than the temperature threshold value or the third temperature difference value is smaller than the temperature threshold value, the temperature change operation can be realized through single temperature rise or temperature reduction due to the smaller temperature difference.

Wherein, the temperature threshold value can be any value in the interval of [2.5 ℃ and 5 ℃).

An embodiment of the second aspect of the present invention proposes a temperature control device comprising: the acquisition unit is used for acquiring the real-time temperature in the heat preservation box body when detecting that the temperature regulation instruction is received; the determining unit is used for determining whether to execute temperature regulation operation on the heat preservation box body according to the relation between the real-time temperature and the target regulation temperature, and determining the type of the temperature regulation operation when the temperature regulation operation is determined to be executed; and the temperature adjusting unit is used for executing temperature adjusting operation according to the specified temperature change rate and the type of the temperature adjusting operation, wherein the type of the temperature adjusting operation comprises a temperature rising operation and a temperature reducing operation.

In the above technical solution, preferably, the temperature adjustment unit includes: the first control unit is used for determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering a cycle period so as to heat the heat preservation box body; the first control unit is further configured to: when a variable temperature value corresponding to the real-time temperature rise temperature change rate is detected, the electric air door and the fan are controlled to be closed until the next cycle period is started; the first control unit is further configured to: and repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature, wherein the air inlet duct extends to the heating cavity.

In any of the above technical solutions, preferably, the first control unit is further configured to: determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to refrigerate the heat preservation box body; the first control unit is further configured to: when a variable temperature value corresponding to the real-time temperature drop temperature change rate is detected, the electric air door and the fan are controlled to be closed until the next cycle period is started; the first control unit is further configured to: and repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature, wherein the air inlet duct extends to the refrigeration cavity.

In any of the above technical solutions, preferably, the refrigeration equipment is further provided with a compressor, and the determination unit is further configured to: and determining the running power of the compressor according to the temperature change rate, so that the time length required for realizing the temperature change and temperature change value in each period is less than or equal to unit time.

In any of the above technical solutions, preferably, the method further includes: the second control unit is used for controlling the electric air door and the fan to be continuously opened for a preset time length and continuously detecting the variation of the real-time temperature in the preset time length when the difference between the real-time temperature and the ambient temperature is detected to be smaller than the temperature variation value; the second control unit is further configured to: and controlling to close the fan when the detected variation is smaller than a temperature difference threshold value, wherein the electric air door is continuously in an opening state, and the temperature difference threshold value is smaller than or equal to 1/5 of the temperature change value.

Wherein, the fan can be opened and closed synchronously with the compressor.

In any of the above technical solutions, preferably, the acquisition unit is further configured to: when the fan is controlled to be closed and the electric air door is in an open state, acquiring real-time temperature according to acquisition frequency to determine a first temperature difference value between the temperature and the ambient temperature; the determination unit is further configured to: and determining whether to start the fan or not according to the first temperature difference value.

Specifically, the acquisition frequency may be 1 time/5 min.

In any of the above technical solutions, preferably, the determining unit is further configured to: when the real-time temperature is higher than the target adjusting temperature and a second temperature difference value between the real-time temperature and the target adjusting temperature is detected to be higher than or equal to a temperature threshold value, determining to perform cooling operation on the heat preservation box body; the determination unit is further configured to: and when the real-time temperature is less than the target adjusting temperature and a third temperature difference value between the target adjusting temperature and the real-time temperature is detected to be greater than or equal to a temperature threshold value, determining to perform heating operation on the heat preservation box body, wherein the temperature threshold value is a positive number.

A third aspect of the invention proposes a refrigeration device comprising a processor for implementing the steps of the temperature control method according to any one of the preceding claims when executing a computer program stored in a memory.

A fourth aspect of the present invention proposes a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the temperature control method according to any one of the preceding claims.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 shows a schematic flow diagram of a temperature control method according to an embodiment of the invention;

FIG. 2 shows a schematic block diagram of a temperature control apparatus according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram illustrating a temperature control method according to another embodiment of the present invention;

FIG. 4 illustrates a partial schematic view of a refrigeration unit according to an embodiment of the present invention;

fig. 5 shows a schematic block diagram of a refrigeration device according to another embodiment of the invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

As shown in fig. 1, a temperature control method according to an embodiment of the present invention includes: step 102, collecting real-time temperature in a heat preservation box body when detecting that a temperature regulation instruction is received; 104, determining whether to perform temperature regulation operation on the heat preservation box body according to the relation between the real-time temperature and the target regulation temperature, and determining the type of the temperature regulation operation when the temperature regulation operation is determined to be performed; and 106, executing temperature adjusting operation according to the specified temperature change rate and the type of the temperature adjusting operation, wherein the type of the temperature adjusting operation comprises a temperature rising operation and a temperature reducing operation.

In the embodiment, after the carrier is loaded into the heat preservation box or before the carrier is taken out, when a temperature regulation instruction is detected and received, the real-time temperature in the heat preservation box is collected, and when the temperature regulation operation is determined to be executed according to the real-time temperature and the target regulation temperature, the temperature regulation operation is specified according to the specified temperature change rate, when the specified temperature change rate is small, the approximately linear rise or fall of the temperature in the box is realized, different temperature change rates are determined by setting different linear slopes, and the influence of the activity of the carrier in the box due to the temperature change is further reduced.

the first embodiment is as follows:

in the foregoing embodiment, preferably, the temperature adjustment operation is performed according to a specified temperature change rate and a type of the temperature adjustment operation, and when the type of the temperature adjustment operation is a temperature increase operation, the method specifically includes the following steps: determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to heat the heat preservation box body; when a variable temperature value corresponding to the real-time temperature rise temperature change rate is detected, the electric air door and the fan are controlled to be closed until the next cycle period is started; and repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature, wherein the air inlet duct extends to the heating cavity.

In this embodiment, one unit duration is determined as the period duration of one cycle period, and the cycle is timed, starting at the moment of entering a cycle period, opening the electric air door, controlling the fan to start running, so as to heat the heat preservation box body, the heat preservation box body can realize preset temperature rise in a cycle period, when the time for finishing the preset temperature rise is less than the unit time length, the electric air door and the fan are both closed until entering the next cycle period, after a plurality of periodic cycles, the real-time temperature reaches the target regulation temperature, so as to realize the approximately linear temperature rise of the heat preservation box body according to the specified temperature change rate, meet the temperature rise requirements of different rates, when the carrier in the heat preservation box body is a biological product, the influence of temperature change on the activity of the biological product is reduced through approximate linear temperature rise, and therefore the applicability of carrier storage of the heat preservation box body is improved.

Example two:

in any of the above embodiments, preferably, the temperature adjustment operation is performed according to a specified temperature change rate and a type of the temperature adjustment operation, and when the type of the temperature adjustment operation is a temperature reduction operation, the method specifically includes the following steps: determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to refrigerate the heat preservation box body; when a variable temperature value corresponding to the real-time temperature drop temperature change rate is detected, the electric air door and the fan are controlled to be closed until the next cycle period is started; and repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature, wherein the air inlet duct extends to the refrigeration cavity.

In the embodiment, a unit time length is determined as a cycle time length of a cycle period, the cycle is timed, the electric air door is opened from the moment of entering the cycle period, the fan is controlled to start to operate to refrigerate the heat preservation box body, the heat preservation box body can realize preset cooling in the cycle period, the electric air door and the fan are both closed until the next cycle period is entered when the time for completing the preset cooling is shorter than the unit time length, after a plurality of cycle periods are circulated, the real-time temperature reaches the target regulation temperature, so that the heat preservation box body realizes approximate linear cooling according to the specified temperature change rate, the cooling requirements of different rates are met, and meanwhile, the requirement of partial carriers for slow freezing is met.

In any of the above embodiments, preferably, the refrigeration apparatus is further provided with a compressor, and the temperature control method further includes: and determining the running power of the compressor according to the temperature change rate, so that the time length required for realizing the temperature change and temperature change value in each period is less than or equal to unit time.

In the embodiment, the running power of the compressor is determined according to the temperature change rate, so that the heat preservation box body can realize preset temperature rise or temperature reduction in one cycle period, and the requirement of linear or approximately linear temperature change is further met.

In any of the above embodiments, preferably, the target regulated temperature is an ambient temperature at which the incubator is located.

Example three:

in any of the above embodiments, preferably, the repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature further includes: when the difference between the real-time temperature and the ambient temperature is detected to be smaller than the temperature variation value, controlling the electric air door and the fan to be continuously opened for a preset time period, and continuously detecting the variation of the real-time temperature in the preset time period; and controlling to close the fan when the detected variation is smaller than a temperature difference threshold value, wherein the electric air door is continuously in an opening state, and the temperature difference threshold value is smaller than or equal to 1/5 of the temperature change value.

In this embodiment, when detecting that the difference between the real-time temperature and the ambient temperature is smaller than the temperature change value, it indicates that the real-time temperature and the ambient temperature are very close to each other, the heat exchange efficiency between the thermal insulation box and the outside is reduced, at this time, the electric damper is controlled to continue to be opened, and the fan is controlled to continue to operate.

Wherein, the fan can be opened and closed synchronously with the compressor.

Example four:

in any of the above embodiments, preferably, the method further includes: when the fan is controlled to be closed and the electric air door is in an open state, acquiring real-time temperature according to acquisition frequency to determine a first temperature difference value between the temperature and the ambient temperature; and determining whether to start the fan or not according to the first temperature difference value.

In this embodiment, after the thermal insulation box enters the constant-temperature storage stable state, the real-time temperature of the thermal insulation box is periodically collected according to the collection frequency to detect the temperature change of the thermal insulation box, and when a large temperature change value is detected, the fan is continuously turned on to perform air flow circulation to perform temperature change operation, so as to improve the stability of the temperature environment in the thermal insulation box.

Specifically, the acquisition frequency may be 1 time/5 min.

Example five:

in any of the above embodiments, preferably, determining whether to perform a temperature adjustment operation on the thermal insulation box according to a relationship between the real-time temperature and the target adjustment temperature, and determining a type of the temperature adjustment operation when determining to perform the temperature adjustment operation, specifically includes the following steps: when the real-time temperature is higher than the target adjusting temperature and a second temperature difference value between the real-time temperature and the target adjusting temperature is detected to be higher than or equal to a temperature threshold value, determining to perform cooling operation on the heat preservation box body; and when the real-time temperature is less than the target adjusting temperature and a third temperature difference value between the target adjusting temperature and the real-time temperature is detected to be greater than or equal to a temperature threshold value, determining to perform heating operation on the heat preservation box body, wherein the temperature threshold value is a positive number.

In the embodiment, whether the temperature-changing operation is executed or not is determined by detecting the relative magnitude between the real-time temperature and the target adjusting temperature and the relationship between the second temperature difference value between the real-time temperature and the target adjusting temperature and the temperature threshold, and the temperature-changing operation is specifically the temperature-raising operation or the temperature-lowering operation, so that the automatic opening of the temperature-changing operation function is realized, and the frequent opening and closing of the fan and the electric fan caused by the periodic cycle are avoided by setting the temperature threshold.

Example six:

as shown in fig. 2, a temperature control apparatus 200 according to an embodiment of the present invention includes: the acquisition unit 202 is used for acquiring the real-time temperature in the heat preservation box body when detecting that the temperature regulation instruction is received; the determining unit 204 is configured to determine whether to perform a temperature adjustment operation on the thermal insulation box according to a relationship between the real-time temperature and the target adjustment temperature, and determine a type of the temperature adjustment operation when the temperature adjustment operation is determined to be performed; the temperature adjusting unit 206 is configured to perform a temperature adjusting operation according to the specified temperature change rate and a type of the temperature adjusting operation, where the type of the temperature adjusting operation includes a temperature increasing operation and a temperature decreasing operation.

In the above embodiment, preferably, the temperature adjusting unit 206 includes: the first control unit 2062 is configured to determine a unit time length of the temperature change rate as a cycle time length of a cycle period, and control to open the electric damper and the fan corresponding to the air inlet duct when entering a cycle period, so as to heat the heat preservation box; the first control unit 2062 is further configured to: when a variable temperature value corresponding to the real-time temperature rise temperature change rate is detected, the electric air door and the fan are controlled to be closed until the next cycle period is started; the first control unit 2062 is further configured to: and repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature, wherein the air inlet duct extends to the heating cavity.

In any of the above embodiments, preferably, the first control unit 2062 is further configured to: determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to refrigerate the heat preservation box body; the first control unit 2062 is further configured to: when a variable temperature value corresponding to the real-time temperature drop temperature change rate is detected, the electric air door and the fan are controlled to be closed until the next cycle period is started; the first control unit 2062 is further configured to: and repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature, wherein the air inlet duct extends to the refrigeration cavity.

In any of the above embodiments, preferably, the refrigeration equipment is further provided with a compressor, and the determination unit 204 is further configured to: and determining the running power of the compressor according to the temperature change rate, so that the time length required for realizing the temperature change and temperature change value in each period is less than or equal to unit time.

In any of the above embodiments, preferably, the method further includes: the second control unit 208 is configured to control the electric damper and the fan to continue to be opened for a preset time period and continue to detect a variation of the real-time temperature within the preset time period when it is detected that the difference between the real-time temperature and the ambient temperature is smaller than the temperature variation value; the second control unit 208 is further configured to: and controlling to close the fan when the detected variation is smaller than a temperature difference threshold value, wherein the electric air door is continuously in an opening state, and the temperature difference threshold value is smaller than or equal to 1/5 of the temperature change value.

Wherein, the fan can be opened and closed synchronously with the compressor.

In any of the above embodiments, preferably, the acquisition unit 202 is further configured to: when the fan is controlled to be closed and the electric air door is in an open state, acquiring real-time temperature according to acquisition frequency to determine a first temperature difference value between the temperature and the ambient temperature; the determining unit 204 is further configured to: and determining whether to start the fan or not according to the first temperature difference value.

Specifically, the acquisition frequency may be 1 time/5 min.

In any of the above embodiments, preferably, the determining unit 204 is further configured to: when the real-time temperature is higher than the target adjusting temperature and a second temperature difference value between the real-time temperature and the target adjusting temperature is detected to be higher than or equal to a temperature threshold value, determining to perform cooling operation on the heat preservation box body; the determining unit 204 is further configured to: and when the real-time temperature is less than the target adjusting temperature and a third temperature difference value between the target adjusting temperature and the real-time temperature is detected to be greater than or equal to a temperature threshold value, determining to perform heating operation on the heat preservation box body, wherein the temperature threshold value is a positive number.

Example seven:

as shown in fig. 3, a temperature control method according to another embodiment of the present invention includes: step 302, the refrigeration equipment is in a running state, and when the situation that the temperature change operation needs to be executed by the heat preservation box body is detected, the temperature change rate is determined; step 304, detecting whether the temperature difference between the environment temperature and the box body temperature is more than-3 ℃ and less than 3 ℃, entering step 330 when the detection result is yes, entering step 306 when the detection result is no and the temperature difference is more than or equal to 3 ℃, and entering step 318 when the detection result is no and the temperature difference is less than or equal to-3 ℃; step 306, opening the electric air door and operating the fan; step 308, when the preset temperature rise is detected, closing the electric air door and stopping the fan; step 310, after the period duration, returning to step 306 until the box environment is detected to be close to the ambient temperature, and entering step 312; step 312, when the temperature of the box body is detected to be close to the ambient temperature, controlling the fan and the electric air door to be continuously opened for 2 times of the period duration; step 314, acquiring real-time temperature, and controlling to close the fan and continuously open the air door when detecting that the difference value between the real-time temperature and the environmental temperature is smaller than a temperature difference threshold value; step 316, acquiring real-time temperature according to the frequency of 1 time/5 minutes, and comparing the real-time temperature with the ambient temperature to determine whether to restart the fan for heating; step 318, opening the electric air door and operating the fan; step 320, when the preset temperature reduction is detected, closing the electric air door and stopping the fan; step 322, after the period duration, returning to step 306 until the box environment is detected to be close to the ambient temperature, and entering step 324; step 324, when the temperature of the box body is detected to be close to the ambient temperature, controlling the fan and the electric air door to be continuously opened for 2 times of the period duration; step 326, acquiring real-time temperature, and controlling to close the fan and continuously open the air door when detecting that the difference value between the real-time temperature and the environmental temperature is smaller than a temperature difference threshold value; 328, acquiring real-time temperature according to the frequency of 1 time/5 minutes, and comparing the real-time temperature with the ambient temperature to determine whether to restart the fan for cooling; step 330, the electric damper and the fan are continuously opened until the ambient temperature is reached.

In this embodiment, the target regulation temperature is the ambient temperature.

Referring to fig. 4, a refrigerating apparatus according to an embodiment of the present invention includes: the temperature-changing chamber can be a deep freezing chamber, a refrigerating chamber or a heating chamber, the temperature-changing chamber 404 is provided with an air inlet 406, and the electric air door 408 is arranged at the air inlet 406; the fan 410 is arranged corresponding to the electric air door 408, the fan 408 rotates when the electric air door 406 is opened to supply air to the heat preservation box 402, the first temperature sensor 412 is arranged in the heat preservation box 402, the second temperature sensor 414 is arranged in the variable-temperature chamber 402, the electric air door 408 and the fan 440 are controlled to be continuously opened and closed according to the temperature in the box collected by the first temperature sensor 442 and the ambient temperature collected by the second temperature sensor 414, so that the temperature in the box changes according to the appointed temperature change rate, and the air flow circulation is realized by opening the air inlet 406 and combining the air return opening 416 and the air return hole 418.

Referring to fig. 2 and 4, the acquisition unit 202 may be the first temperature sensor 412, the determination unit 204, the temperature adjustment unit 206, and the first control unit 2062 and the second control unit 208 may be integrated in a control chip.

As shown in fig. 5, according to the refrigeration apparatus 50 of the embodiment of the present invention, the refrigeration apparatus 50 includes a processor 504, and the processor 504 is configured to implement the temperature control method according to any one of the above embodiments when executing the computer program stored in the memory 502.

In particular, the refrigeration device is a refrigerator or freezer.

A computer-readable storage medium according to an embodiment of the invention, on which a computer program is stored which, when being executed by a processor, carries out the steps of the temperature control method as set forth in any one of the above-mentioned embodiments.

The technical scheme of the invention is explained in detail by combining the attached drawings, the real-time temperature in the heat preservation box is collected when a temperature regulation instruction is detected and received after the heat preservation box is loaded into the carrier or before the carrier is taken out, the temperature regulation operation is specified according to the specified temperature change rate when the temperature regulation operation is determined to be executed according to the real-time temperature and the target temperature regulation, when the specified temperature change rate is smaller, the approximately linear rise or fall of the temperature in the box is realized, different temperature change rates are determined by setting different linear slopes, and the influence of the activity of the carrier in the box due to the temperature change is further reduced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperature control method is suitable for refrigeration equipment, the refrigeration equipment is provided with a temperature changing cavity, and a heat preservation box body is arranged in the temperature changing cavity, and is characterized by comprising the following steps:

when a temperature adjusting instruction is detected and received, acquiring the real-time temperature in the heat preservation box body;

determining whether temperature regulation operation is executed on the heat preservation box body or not according to the relation between the real-time temperature and the target regulation temperature, and determining the type of the temperature regulation operation when the temperature regulation operation is determined to be executed;

performing the tempering operation according to a specified rate of temperature change and the type of the tempering operation,

the type of the temperature adjusting operation comprises a temperature rising operation and a temperature reducing operation;

the temperature adjusting operation is executed according to the specified temperature change rate and the type of the temperature adjusting operation, and when the type of the temperature adjusting operation is a temperature rising operation, the method specifically comprises the following steps:

determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to heat the heat preservation box body;

when the temperature change value corresponding to the temperature change rate is detected to rise by the real-time temperature, the electric air door and the fan are controlled to be closed until the next cycle period is started;

repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature,

the air inlet duct extends to the heating cavity;

the temperature adjusting operation is executed according to the specified temperature change rate and the type of the temperature adjusting operation, and when the type of the temperature adjusting operation is a temperature reducing operation, the method specifically comprises the following steps:

determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to refrigerate the heat preservation box body;

when the real-time temperature is detected to be reduced by the variable temperature value corresponding to the temperature change rate, the electric air door and the fan are controlled to be closed until the next cycle period is started;

wherein, the air inlet duct extends to the refrigeration cavity.

2. The temperature control method according to claim 1, wherein the refrigeration apparatus is further provided with a compressor, the temperature control method further comprising:

and determining the running power of the compressor according to the temperature change rate, so that the time length required for changing the temperature change value by the real-time temperature in each period is less than or equal to the unit time.

3. The temperature control method according to claim 2, wherein the target regulation temperature is an ambient temperature in which the thermal container is located.

4. The method according to claim 3, wherein the repeatedly performing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature further comprises:

the target adjusting temperature is the environment temperature, when the difference value between the real-time temperature and the environment temperature is detected to be smaller than the temperature change value, the electric air door and the fan are controlled to be continuously opened for a preset time period, and the variation of the real-time temperature in the preset time period is continuously detected;

when the variation is detected to be smaller than the temperature difference threshold value, the fan is controlled to be closed,

wherein the electric damper is continuously in an open state, and the temperature difference threshold is less than or equal to 1/5 of the temperature change value.

5. The temperature control method according to claim 4, further comprising:

when the fan is controlled to be closed and the electric air door is in an opening state, acquiring the real-time temperature according to acquisition frequency to determine a first temperature difference value between the real-time temperature and the ambient temperature;

and determining whether to start the fan or not according to the first temperature difference value.

6. The temperature control method according to claim 1, wherein the determining whether to perform a temperature adjustment operation on the thermal insulation box according to the relationship between the real-time temperature and the target adjustment temperature and determining the type of the temperature adjustment operation when determining to perform the temperature adjustment operation specifically comprises the following steps:

when the real-time temperature is greater than the target adjusting temperature and a second temperature difference value between the real-time temperature and the target adjusting temperature is greater than or equal to a temperature threshold value, determining to perform cooling operation on the heat preservation box body;

when the real-time temperature is less than the target regulation temperature and a third temperature difference value between the target regulation temperature and the real-time temperature is detected to be greater than or equal to the temperature threshold value, determining to perform warming operation on the incubator body,

wherein the temperature threshold is a positive number.

7. The utility model provides a temperature control device, is applicable to refrigeration plant, refrigeration plant is provided with the temperature changing chamber, the temperature changing intracavity is provided with the insulation can, its characterized in that, temperature control device includes:

the acquisition unit is used for acquiring the real-time temperature in the heat preservation box body when detecting that the temperature regulation instruction is received;

the determining unit is used for determining whether to perform temperature regulation operation on the heat preservation box body according to the relation between the real-time temperature and the target regulation temperature, and determining the type of the temperature regulation operation when the temperature regulation operation is determined to be performed;

a temperature adjusting unit for executing the temperature adjusting operation according to a designated temperature change rate and the type of the temperature adjusting operation,

the temperature adjusting unit includes:

the first control unit is used for determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to heat the heat preservation box body;

the first control unit is further configured to: when the temperature change value corresponding to the temperature change rate is detected to rise by the real-time temperature, the electric air door and the fan are controlled to be closed until the next cycle period is started;

the first control unit is further configured to: repeatedly executing the control operation corresponding to the cycle period until the real-time temperature approaches the target regulation temperature,

the air inlet duct extends to the heating cavity;

the first control unit is further configured to: determining the unit time length of the temperature change rate as the cycle time length of a cycle period, and controlling and opening an electric air door and a fan corresponding to an air inlet duct when entering one cycle period so as to refrigerate the heat preservation box body;

the first control unit is further configured to: when the real-time temperature is detected to be reduced by the variable temperature value corresponding to the temperature change rate, the electric air door and the fan are controlled to be closed until the next cycle period is started;

wherein, the air inlet duct extends to the refrigeration cavity.

8. The temperature control apparatus of claim 7, wherein the refrigeration appliance is further provided with a compressor,

the determination unit is further configured to: and determining the running power of the compressor according to the temperature change rate, so that the time length required for changing the temperature change value by the real-time temperature in each period is less than or equal to the unit time.

9. The temperature control apparatus according to claim 8, wherein the target regulation temperature is an ambient temperature in which the thermal container is located.

10. The temperature control apparatus according to claim 9, further comprising:

the second control unit is used for controlling the electric air door and the fan to be continuously opened for a preset time length and continuously detecting the variation of the real-time temperature within the preset time length when the difference value between the real-time temperature and the environment temperature is detected to be smaller than the temperature variation value;

the second control unit is further configured to: when the variation is detected to be smaller than the temperature difference threshold value, the fan is controlled to be closed,

11. The temperature control apparatus according to claim 10,

the acquisition unit is further configured to: when the fan is controlled to be closed and the electric air door is in an opening state, acquiring the real-time temperature according to acquisition frequency to determine a first temperature difference value between the real-time temperature and the ambient temperature;

the determination unit is further configured to: and determining whether to start the fan or not according to the first temperature difference value.

12. The temperature control apparatus according to claim 7,

the determination unit is further configured to: when the real-time temperature is greater than the target adjusting temperature and a second temperature difference value between the real-time temperature and the target adjusting temperature is greater than or equal to a temperature threshold value, determining to perform cooling operation on the heat preservation box body;

the determination unit is further configured to: when the real-time temperature is less than the target regulation temperature and a third temperature difference value between the target regulation temperature and the real-time temperature is detected to be greater than or equal to the temperature threshold value, determining to perform warming operation on the incubator body,

wherein the temperature threshold is a positive number.

13. A refrigeration device, characterized in that it comprises a processor for implementing a temperature control method according to any one of claims 1 to 6 when executing a computer program stored in a memory.

14. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when executed by a processor, implements a temperature control method as claimed in any one of claims 1 to 6.