CN111578618A

CN111578618A - Cold and hot integrated cabinet, temperature control method and unmanned vehicle

Info

Publication number: CN111578618A
Application number: CN202010464026.7A
Authority: CN
Inventors: 闫明
Original assignee: Neolix Technologies Co Ltd
Current assignee: Neolix Technologies Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-08-25

Abstract

The invention provides a cold and hot integrated cabinet, a temperature control method and an unmanned vehicle, wherein the cold and hot integrated cabinet comprises a heating chamber and a PTC heating element, the PTC heating element is in heat conduction connection with the heating chamber, the cold and hot integrated cabinet also comprises a compression heating system, and the compression heating system comprises: the system comprises a compressor, a condenser, a throttling device and an evaporator; the compressor, the condenser, the throttling device and the evaporator are sequentially connected in series, and the condenser is in heat conduction connection with the heating chamber. The heating chamber is heated by firstly starting the compression heating system, the temperature of the heating chamber is increased by using lower power, and then the heating chamber is switched to the PTC heating element for heating, so that the energy consumption is reduced.

Description

Cold and hot integrated cabinet, temperature control method and unmanned vehicle

Technical Field

The application relates to the technical field of heating, in particular to a cold and hot integrated cabinet, a temperature control method and an unmanned vehicle.

Background

Heating containers, such as those containing hot beverages such as coffee and milk in convenience stores or supermarkets, require the user to manually pull the product open and remove the product, and then go to a checkout counter for settlement.

The heating container in the prior art has a heating function, but an independent PTC heating scheme is adopted, so that the energy consumption of the whole machine is high, the power is usually more than 1000w, the energy consumption is high, and the heating is slow under low power.

For the commodities needing constant temperature storage, after the temperature in the container rises to exceed a set value, the loop of the heating system is powered off to stop heating, and the temperature in the container can only slowly fall; for refrigerated goods, after the temperature in the container is reduced to be lower than a preset value, the circuit of a refrigeration system (such as a refrigerator) is powered off to stop refrigeration, the temperature in the container can only slowly rise, and the temperature is difficult to quickly recover to be within the range of the preset value.

Disclosure of Invention

The application aims to provide a cold and hot integrated cabinet, a temperature control method and an unmanned vehicle, and aims to solve the problem that containers in the prior art are high in energy consumption under a heating mode.

In a first aspect of the present application, therefore, there is provided a hot and cold integrated cabinet including a heating chamber and a PTC heating element thermally connected to the heating chamber,

still include the compression heating system, the compression heating system includes: the system comprises a compressor, a condenser, a throttling device and an evaporator;

the compressor, the condenser, the throttling device and the evaporator are sequentially connected in series, and the condenser is in heat conduction connection with the heating chamber.

In the cold and hot integrated cabinet provided by the first aspect of the application, a compression heating system is started in the use process; and when the temperature T in the heating chamber is greater than or equal to a preset temperature T0K 1, the PTC heating element is started and the compression heating system is closed, wherein K1 is a first proportional coefficient, and 0< K1< 1. The compression heating system is started to heat the heating chamber, the temperature of the heating chamber can be increased with lower power, when the temperature in the heating chamber is increased to a certain degree, the heating chamber is switched to the PTC heating element to be heated, the PTC heating element is heated to a certain degree and reaches a limit heating state due to resistance increase, and the temperature can be maintained at the highest temperature which can be heated by the PTC heating element. Directly use PTC heating element to heat among the prior art, the heating chamber initial temperature is lower, and PTC heating element internal resistance is less, and the electric current that PTC heating element passes through is too big, causes the power too big, and the heat radiation loss is big, and the energy consumption is too high, therefore, the scheme of this application first aspect is for prior art, under the same temperature condition is heated to the heating chamber, the energy consumption is lower.

For example, the PTC heating element is a PTC heating ceramic sheet fixedly attached to one side surface of the heating chamber, the condenser is fixed to the other side surface of the heating chamber, in the heating mode, the condenser is connected to an outlet of the compressor and an inlet of the compressor, the compressor compresses refrigerant vapor to form high-temperature high-pressure gas, the high-temperature high-pressure gas enters the condenser to be liquefied and release heat, the condenser conducts the heat to the heating chamber to raise the temperature inside the heating chamber, K1 is set to be 95%, T0 is set to be 40 ℃, when the temperature T inside the heating chamber is raised to 38 ℃ or higher than 38 ℃, the compressor stops working, and simultaneously the PTC heating element is turned on (starts to be powered on) to generate heat, so that the heating chamber is continuously heated and kept warm, and the temperature inside the heating chamber is kept within.

In a possible implementation manner of the first aspect of the present application, the compression refrigeration system further includes a four-way valve, two ports of the four-way valve are respectively connected to one end of the condenser away from the throttling device and one end of the evaporator away from the throttling device, and the other two ports of the four-way valve are respectively connected to two ports of the compressor.

Through the above possible implementation manner of the first aspect of the present application, in the heating mode, the four-way valve is switched to the state where the condenser is connected to the outlet of the compressor and the state where the evaporator is connected to the inlet of the compressor, the compressor compresses refrigerant vapor to form high-temperature high-pressure gas, the high-temperature high-pressure gas enters the condenser to be liquefied and release heat, the condenser conducts the heat to the heating chamber to raise the temperature inside the heating chamber, K1 is set to 95%, T0 is set to 40 ℃, when the temperature T inside the heating chamber is raised to 38 ℃ or above 38 ℃, the compressor stops working, and meanwhile, the PTC heating element is turned on (starts to be powered on) to generate heat, and the heating chamber is continuously heated and kept warm, so that the temperature. In a refrigeration mode, the four-way valve is switched to the condenser to be connected with an inlet of the compressor, the evaporator is connected with an outlet of the compressor, refrigerant vapor is compressed by the compressor to form high-temperature high-pressure gas, the high-temperature high-pressure gas enters the evaporator to be liquefied and release heat, high-temperature high-pressure refrigerant liquid flows through the throttling device, the pressure is reduced, the high-temperature high-pressure refrigerant liquid enters the condenser to be evaporated and absorb heat, the temperature of the condenser is reduced, and the condenser absorbs the temperature of the heating chamber. Therefore, the heating chamber has heating and cooling functions.

In a possible implementation manner of the first aspect of the present application, the hot and cold integrated cabinet further includes a controller and a temperature sensor, the compressor, the PTC heating element and the temperature sensor are respectively electrically connected to the controller, and the temperature sensor is used for detecting the temperature in the heating chamber.

Through the above possible implementation manner of the first aspect of the present application, the temperature sensor detects the temperature in the heating chamber in real time, and sends the detected temperature value to the controller, and the controller automatically controls the operation of the PTC heating element and the compressor according to the temperature value detected by the temperature sensor, so that the heating chamber is automatically maintained within the required temperature range.

In one possible implementation of the first aspect of the present application, the four-way valve is electrically connected to the controller.

Through the above-mentioned possible implementation of this application first aspect, when temperature sensor detected the heating chamber high temperature, the controller control cross valve switching-over makes the condenser change into refrigeration by heating, to heating chamber rapid cooling.

In one possible embodiment of the first aspect of the present application, the hot and cold integrated cabinet further includes a cargo storage chamber provided outside the heating chamber.

Through the aforesaid possible implementation mode of this application first aspect, store up goods room and heating chamber fixed connection, store up the goods room and be used for saving commodity, when the refrigerated commodity of heating goods in the heating chamber is about to sell out, draw commodity in the storage goods room and supply in the heating chamber, make the commodity volume in the heating chamber sufficient.

In a second aspect of the present application, there is provided a temperature control method for temperature control of the integrated cooling and heating cabinet in the first aspect of the present application, wherein a heating mode of the integrated cooling and heating cabinet includes an energy saving heating mode, and includes the steps of:

when the cold and hot integrated cabinet is in a heating mode, a heating mode is selected;

after the energy-saving heating mode is selected, the compression heating system is started;

and when the temperature T in the heating chamber is greater than or equal to a preset temperature T0K 1, turning on the PTC heating element and turning off the compression heating system, wherein K1 is a first proportional coefficient, and 0< K1< 1.

According to the temperature control method provided by the second aspect of the application, the PTC heating element is directly used for heating in the prior art, the initial temperature of the heating chamber is lower, the internal resistance of the PTC heating element is smaller, the current passing through the PTC heating element is too large, the power is too large, the heat radiation loss is large, and the energy consumption is too high.

In one possible implementation of the second aspect of the present application, the heating mode further includes an enhanced heating mode, and the selecting heating mode further includes:

after the enhanced heating mode is selected, starting the PTC heating element and the compression heating system;

and when the temperature T in the heating chamber is greater than or equal to a preset temperature T0 × K2, closing the compression heating system, wherein K2 is a second proportionality coefficient, and 0< K2< 1.

Through the above possible implementation manner of the second aspect of the present application, an enhanced heating mode is adopted, so that the PTC heating element and the compression heating system can simultaneously heat the heating chamber, the heating efficiency is higher, and simultaneously, compared with the prior art, under the condition of heating at the same heating rate and heating to the same temperature, the temperature control method in the second aspect of the present application can reduce the loss generated by heat radiation, the power of a single PTC heating element is reduced, and compared with the prior art that the PTC heating element is singly used for heating in the center of the prior art, the combined heating of the PTC heating element and the compression heating system reduces the overall energy consumption.

In one possible implementation of the second aspect of the present application, the heating mode further includes a general heating mode, and the selective heating mode further includes:

after the normal heating mode is selected, the PTC heating element is turned on.

Through the above possible implementation manner of the second aspect of the present application, since the compressor of the compression heating system continuously sucks, compresses, and discharges the refrigerant when the compression heating system is in operation, certain noise and vibration exist when the compression heating system is started, a normal heating mode can be selected in an environment where the library, the office, and the like need to be kept quiet, no noise and vibration are generated in the heating process of the PTC heating element, and the operation is stable.

In one possible embodiment of the second aspect of the present application, the temperature control method further includes:

when the cold and hot integrated cabinet is in a refrigeration mode, the PTC heating element is closed, the compression heating system is started, and the four-way valve is controlled to be switched to the condenser to be converted into refrigeration;

and when the temperature T in the heating chamber is less than or equal to a preset temperature T0 × K3, closing the compression heating system, wherein K3 is a third proportionality coefficient, and 1< K3.

Through the above possible implementation manner of the second aspect of the present application, when the temperature sensor detects that the temperature in the heating chamber is too high, the controller controls the four-way valve to change direction, so that the condenser is changed from heating to cooling, the temperature in the heating chamber is rapidly reduced, K3 can be set to 1.2, T0 is set to 8 ℃, and when the temperature is rapidly reduced to 9.6 ℃ or below 9.6 ℃, the controller controls the compression heating system to be turned off, so that the temperature in the heating chamber is maintained in the refrigerating temperature range of 7 ℃ to 9.6 ℃.

In a third aspect of the present application, there is provided an unmanned vehicle including the cold-hot all-in-one cabinet of the first aspect of the present application.

The unmanned vehicle that this application third aspect provided, cold and hot integrative cabinet is fixed to be loaded on unmanned vehicle, go to the place of selling goods through remote control unmanned vehicle, the user uses the cell-phone to sweep the sign indicating number option and purchase commodity, the cabinet door of heating chamber is automatic to be opened, the user takes out the commodity of option purchase from the heating chamber through the shipment mouth, door self-closing behind the payment of settling accounts, the completion process of selling goods, can heat the goods refrigeration to the commodity of selling, the required energy consumption of heating is low, the time of endurance is long.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic structural diagram of a central cooling and heating integrated cabinet according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a compression heating system in a heating mode according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a compression refrigeration system in a refrigeration mode according to an embodiment of the present disclosure;

fig. 4 is a schematic view illustrating a connection structure between a controller and a compressor, a temperature sensor, and a PTC heating element according to an embodiment of the present invention;

fig. 5 is a schematic flow chart of a medium temperature control method according to a second embodiment of the present application.

Description of reference numerals:

100. a PTC heating element;

210. a heating chamber; 211. a goods outlet; 220. a storage compartment;

300. a compression heating system; 310. a compressor; 320. a condenser; 330. a throttling device; 340. an evaporator; 350. a four-way valve;

400. a controller;

500. a temperature sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the disclosure, are intended for purposes of illustration only and are not intended to limit the scope of the disclosure.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be integral with the other element or can be removably connected to the other element.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Further, it is to be understood that, in the embodiments, the positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "one side", "the other side", "one end", "the other end", and the like are based on the positional relationships shown in the drawings; the terms "first," "second," and the like are used herein to distinguish one structural element from another. These terms are merely for convenience in describing the present application and simplifying the description, and should not be construed as limiting the present application.

As described in the background art, the heating container in the prior art has a heating function, but an independent PTC heating scheme is adopted, so that the energy consumption of the whole machine is high, the power is usually above 1000w, the energy consumption is high, and the heating is slow under low power. For the commodities needing constant temperature storage, after the temperature in the container rises to exceed a set value, the loop of the heating system is powered off to stop heating, and the temperature in the container can only slowly fall; for refrigerated goods, after the temperature in the container is reduced to be lower than a preset value, the circuit of a refrigeration system (such as a refrigerator) is powered off to stop refrigeration, the temperature in the container can only slowly rise, and the temperature is difficult to quickly recover to be within the range of the preset value.

In order to solve the above technical problem, in a first embodiment of the present application, there is provided a cooling and heating integrated cabinet, as shown in fig. 1, 2 and 3, including a heating chamber 210 and a PTC heating element 100, wherein the PTC heating element 100 is in heat conduction connection with the heating chamber 210, and further including a compression heating system 300, and the compression heating system 300 includes: a compressor 310, a condenser 320, a throttling device 330, and an evaporator 340; the compressor 310, the condenser 320, the throttling device 330 and the evaporator 340 are connected in series in sequence, and the condenser 320 is connected with the heating chamber 210 in a heat conduction mode.

In the cooling and heating integrated cabinet provided in the first embodiment of the present application, in the using process, the compression and heating system 300 is started; when the temperature T in the heating chamber 210 is greater than or equal to the preset temperature T0 × K1, the PTC heating element 100 is turned on and the compression heating system 300 is turned off, where K1 is a first scaling factor, and 0< K1< 1. The compression heating system 300 is started to heat the heating chamber 210, the temperature of the heating chamber 210 can be increased with low power, when the temperature in the heating chamber 210 is increased to a certain degree, the heating is switched to the PTC heating element 100, the PTC heating element 100 is heated to a certain degree, and then the resistance is increased to reach a limit heating state, and the temperature can be maintained at the highest temperature that the PTC heating element 100 can heat. In the prior art, the PTC heating element 100 is directly used for heating, the initial temperature of the heating chamber 210 is low, the internal resistance of the PTC heating element 100 is low, and the current passing through the PTC heating element 100 is too large, so that the power is too large, the heat radiation loss is large, and the energy consumption is too high.

For example, the PTC heating element 100 is a PTC heating ceramic sheet, the throttle device 330 is an expansion valve, and is fixedly attached to one side surface of the heating chamber 210, the condenser 320 is fixed to the other side surface of the heating chamber 210, in the heating mode, the condenser 320 is connected to an outlet of the compressor 310, the evaporator 340 is connected to an inlet of the compressor 310, the compressor 310 compresses refrigerant vapor to form high-temperature high-pressure gas, the high-temperature high-pressure gas enters the condenser 320 to be liquefied and release heat, the condenser 320 conducts the heat to the heating chamber 210, so that the temperature inside the heating chamber 210 is increased, the K1 is set to be 95%, the T0 is set to be 40 ℃, when the temperature T in the heating chamber 210 rises to 38 c or more than 38 c, the compressor 310 stops operating, meanwhile, the PTC heating element 100 is turned on (starts to be powered on) to generate heat, and the heating chamber 210 is continuously heated and insulated, so that the temperature in the heating chamber 210 is maintained within the range of 40 +/-3 ℃.

In a possible implementation manner of the first embodiment of the present application, the compression refrigeration system further includes a four-way valve 350, two ports of the four-way valve 350 are respectively connected to an end of the condenser 320 far away from the throttling device 330 and an end of the evaporator 340 far away from the throttling device 330, and the other two ports of the four-way valve 350 are respectively connected to two ports of the compressor 310.

Through the above possible implementation manner of the first embodiment of the present application, in the heating mode, the four-way valve 350 is switched to connect the condenser 320 with the outlet of the compressor 310 and connect the evaporator 340 with the inlet of the compressor 310, the compressor 310 compresses the refrigerant vapor to form the high-temperature high-pressure gas, the high-temperature high-pressure gas enters the condenser 320 to be liquefied and release heat, the condenser 320 conducts the heat to the heating chamber 210, so as to raise the temperature inside the heating chamber 210, K1 is set to 95%, T0 is set to 40 ℃, when the temperature T inside the heating chamber 210 is raised to 38 ℃ or higher than 38 ℃, the compressor 310 stops operating, and the PTC heating element 100 is turned on (starts to be powered on) to generate heat, so as to continue to heat and preserve the temperature inside the heating chamber 210, and maintain the temperature inside the heating chamber. In a cooling mode, the four-way valve 350 is switched to the state that the condenser 320 is connected with the inlet of the compressor 310 and the evaporator 340 is connected with the outlet of the compressor 310, the compressor 310 compresses refrigerant vapor to form high-temperature high-pressure gas, the high-temperature high-pressure gas enters the evaporator 340 to be liquefied and release heat, the high-temperature high-pressure refrigerant liquid is reduced in pressure after flowing through the throttling device 330, enters the condenser 320 to be evaporated and absorb heat, the temperature of the condenser 320 is reduced, and the condenser 320 absorbs the temperature of the heating chamber 210 to reduce the temperature of the heating chamber 210. Therefore, the heating chamber 210 has heating and cooling functions.

In one possible implementation manner of the first embodiment of the present application, as shown in fig. 1 and 4, the cooling and heating integrated cabinet further includes a controller 400 and a temperature sensor 500, the compressor 310, the PTC heating element 100 and the temperature sensor 500 are respectively electrically connected to the controller 400, and the temperature sensor 500 is used for detecting the temperature inside the heating chamber 210.

With the above possible implementation manner of the first embodiment of the present application, the temperature sensor 500 detects the temperature inside the heating chamber 210 in real time and sends the detected temperature value to the controller 400, and the controller 400 automatically controls the operation of the PTC heating element 100 and the compressor 310 according to the temperature value detected by the temperature sensor 500, so that the heating chamber 210 is automatically maintained within the desired temperature range.

In one possible implementation of the first embodiment of the present application, the four-way valve 350 is electrically connected to the controller 400.

Through the above possible implementation manner of the first embodiment of the present application, when the temperature sensor 500 detects that the temperature in the heating chamber 210 is too high, the controller 400 controls the four-way valve 350 to change the direction, so that the condenser 320 is changed from heating to cooling, and the heating chamber 210 is rapidly cooled.

In a possible implementation manner of the first embodiment of the present application, the hot and cold integrated cabinet further includes a storage compartment 220 disposed outside the heating compartment 210.

Through the above possible implementation manner of the first embodiment of the present application, the storage compartment 220 is fixedly connected to the heating chamber 210, the storage compartment 220 is used for storing goods, and when the goods cooled by heating in the heating chamber 210 are about to be sold out, the goods are taken out from the storage compartment 220 and supplemented into the heating chamber 210, so that the goods in the heating chamber 210 are sufficient in quantity.

In the second embodiment of the present application, there is provided a temperature control method, as shown in fig. 5, for temperature control of the integrated cooling and heating cabinet in the first embodiment of the present application, a heating mode of the integrated cooling and heating cabinet includes an energy saving heating mode, and includes the following steps:

s100, selecting a heating mode when the cold and hot integrated cabinet is in a heating mode;

s110, after the energy-saving heating mode is selected, the compression heating system 300 is started;

and S111, when the temperature T in the heating chamber 210 is greater than or equal to a preset temperature T0 × K1, turning on the PTC heating element 100 and turning off the compression heating system 300, wherein K1 is a first scaling factor, and 0< K1< 1.

In the temperature control method provided by the second embodiment of the present application, in the prior art, the PTC heating element 100 is directly used for heating, the initial temperature of the heating chamber 210 is low, the internal resistance of the PTC heating element 100 is low, and the current passed by the PTC heating element 100 is too large, which causes too large power, large heat radiation loss and too high energy consumption, so that by using the temperature control method in the second embodiment of the present application, the energy consumption is lower when the heating chamber 210 is heated to the same temperature.

In a possible implementation manner of the second embodiment of the present application, the heating mode further includes an enhanced heating mode, and the selecting the heating mode further includes:

s120, after the enhanced heating mode is selected, the PTC heating element 100 and the compression heating system 300 are started;

and S121, when the temperature T in the heating chamber 210 is greater than or equal to a preset temperature T0 × K2, closing the compression heating system 300, wherein K2 is a second proportionality coefficient, and 0< K2< 1.

Through the above possible implementation manner of the second embodiment of the present application, by using the enhanced heating mode, the PTC heating element 100 and the compression heating system 300 can heat the heating chamber 210 at the same time, so that the heating efficiency is higher, and compared with the prior art, under the condition of heating at the same heating rate and to the same temperature, the temperature control method in the second embodiment of the present application can reduce the loss caused by heat radiation, the power of a single PTC heating element 100 is reduced, and compared with the prior art that the PTC heating element 100 is used alone for heating in the center of the prior art, the combined heating of the PTC heating element 100 and the compression heating system 300 reduces the overall energy consumption.

In a possible implementation manner of the second embodiment of the present application, the heating mode further includes a general heating mode, and the selecting the heating mode further includes:

s130, after the normal heating mode is selected, the PTC heating element 100 is turned on.

Through the above possible implementation manner of the second embodiment of the present application, since the compressor 310 continuously sucks, compresses, and discharges the refrigerant when the compression heating system 300 operates, a certain amount of noise and vibration exist when the compression heating system 300 is turned on, a normal heating mode can be selected in an environment where a quiet environment needs to be maintained, such as a library, an office, and the like, and the PTC heating element 100 does not generate noise and vibration during the heating process, and operates stably.

In a possible implementation manner of the second embodiment of the present application, the temperature control method further includes:

s200, when the cold and hot integrated cabinet is in a refrigeration mode, closing the PTC heating element 100, starting the compression heating system 300, and controlling the four-way valve 350 to switch to the condenser 320 to be refrigerated;

and S210, when the temperature T in the heating chamber 210 is less than or equal to a preset temperature T0 × K3, closing the compression heating system 300, wherein K3 is a third proportionality coefficient and 1< K3.

Through the above possible implementation manner of the second embodiment of the present application, when the temperature sensor 500 detects that the temperature in the heating chamber 210 is too high, the controller 400 controls the four-way valve 350 to change the direction, so that the condenser 320 is changed from heating to cooling, and the heating chamber 210 is rapidly cooled, K3 may be set to 1.2, T0 may be set to 8 ℃, and when the temperature is rapidly cooled to 9.6 ℃ or below 9.6 ℃, the controller 400 controls the compression and heating system 300 to be turned off, so that the temperature in the heating chamber 210 is maintained in the refrigeration temperature range of 7 ℃ to 9.6 ℃.

In the third embodiment of the application, an unmanned vehicle is provided, which comprises the cold and hot integrated cabinet in the first embodiment of the application.

The unmanned car that this application embodiment three provided, the integrative cabinet of cold and hot is fixed to be loaded on unmanned car, go to the place of selling goods through remote control unmanned car, the user uses the cell-phone to sweep the sign indicating number and elect to purchase the commodity, the cabinet door of heating chamber 210 is automatic to be opened, the commodity of choosing is taken out from heating chamber 210 through shipment mouth 211 to the user, door self-closing behind the payment of settling accounts, accomplish the process of selling goods, can heat the goods refrigeration to the commodity of selling, the required energy consumption of heating is low, the duration is long.

By "thermally conductive connection" is meant a contact or fixed connection between designated components that is capable of conducting heat away from each other.

The above "S100, S110" and the like are a sequence of steps of the temperature control method, and the sequence thereof may be adjusted according to actual needs in practical applications, so the sequence in the embodiment of the present application should not be construed as a limitation to the scope of protection.

It should be noted that, in the embodiments of the method and the system, the modules included in the embodiments are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional modules are only used for distinguishing one functional module from another, and are not used for limiting the protection scope of the application.

In addition, it can be understood by those skilled in the art that all or part of the steps in the method for implementing the embodiments described above can be implemented by instructing the relevant hardware through a program, and the corresponding program can be stored in a computer-readable storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, or the like.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cold and hot integrated cabinet comprises a heating chamber (210) and a PTC heating element (100), wherein the PTC heating element (100) is connected with the heating chamber (210) in a heat conduction way,

further comprising a compression heating system (300), the compression heating system (300) comprising: a compressor (310), a condenser (320), a throttling device (330), and an evaporator (340);

the compressor (310), the condenser (320), the throttling device (330) and the evaporator (340) are sequentially connected in series, and the condenser (320) is in heat conduction connection with the heating chamber (210).

2. A cooling-heating integrated cabinet according to claim 1, wherein the compression refrigeration system further comprises a four-way valve (350), two ports of the four-way valve (350) are respectively connected with one end of the condenser (320) far away from the throttling device (330) and one end of the evaporator (340) far away from the throttling device (330), and the other two ports of the four-way valve (350) are respectively connected with two ports of the compressor (310).

3. A hot-and-cold integrated cabinet according to claim 1 or 2, further comprising a controller (400) and a temperature sensor (500), wherein the compressor (310), the PTC heating element (100) and the temperature sensor (500) are electrically connected to the controller (400), respectively, and the temperature sensor (500) is used for detecting the temperature in the heating chamber (210).

4. A cold-hot integrated cabinet according to claim 3, wherein the four-way valve (350) is electrically connected to the controller (400).

5. A hot and cold integrated cabinet according to any one of claims 1 to 4, further comprising a cargo storage compartment (220) provided outside the heating compartment (210).

6. A temperature control method for temperature control of the hot and cold integrated cabinet of any one of claims 1 to 5, wherein the heating mode of the hot and cold integrated cabinet includes an energy saving heating mode, and comprising the steps of:

after the energy-saving heating mode is selected, the compression heating system (300) is started;

when the temperature T in the heating chamber (210) is greater than or equal to a preset temperature T0K 1, the PTC heating element (100) is turned on and the compression heating system (300) is turned off, wherein K1 is a first scaling factor, and 0< K1< 1.

7. The method of claim 6, wherein the heating mode further comprises an augmented heating mode, the selective heating mode further comprising:

after the enhanced heating mode is selected, turning on the PTC heating element (100) and the compression heating system (300);

when the temperature T in the heating chamber (210) is greater than or equal to a preset temperature T0K 2, the compression heating system (300) is closed, wherein K2 is a second proportionality coefficient, and 0< K2< 1.

8. The method of claim 6, wherein the heating mode further comprises a normal heating mode, and the selective heating mode further comprises:

after the normal heating mode is selected, the PTC heating element (100) is turned on.

9. The method of claim 6, wherein the temperature control method further comprises:

when the cold and hot integrated cabinet is in a refrigeration mode, the PTC heating element (100) is closed, the compression heating system (300) is started, and the four-way valve (350) is controlled to be switched to the condenser (320) to be refrigerated;

when the temperature T in the heating chamber (210) is less than or equal to a preset temperature T0K 3, the compression heating system (300) is closed, wherein K3 is a third proportionality coefficient, and 1< K3.

10. An unmanned vehicle comprising the cooling-heating integrated cabinet of any one of claims 1 to 5.