CN209965551U - Solar refrigeration type first-aid backpack double-temperature heat preservation system - Google Patents

Abstract

The utility model relates to a solar refrigeration type first aid knapsack dual temperature heat preservation system, including insulation construction and knapsack, insulation construction embeds there are first heat preservation chamber and second heat preservation chamber, insulation construction is close to the one end of knapsack and is equipped with first cutting and second cutting, be equipped with first slot and second slot on the knapsack, be equipped with first cavity and second cavity in the knapsack, first slot and first cavity intercommunication, second slot and second cavity intercommunication, be equipped with first logical groove in the first cutting, first logical groove and first heat preservation chamber intercommunication, be equipped with the second in the second cutting and lead to the groove, the second leads to groove and second heat preservation chamber intercommunication, when knapsack and insulation construction inseparable, first cutting is inserted and is established in first slot, first logical groove and first cavity intercommunication, the second cutting is inserted and is established in the second slot, the second leads to groove and second cavity intercommunication. The utility model discloses realize when emergency appears, can take away the refrigeration thing at any time and keep warm at any time, the cost is practiced thrift to the temperature requirement of compatible different article.

Description

Solar refrigeration type first-aid backpack double-temperature heat preservation system

Technical Field

The utility model relates to a heat preservation system, more specifically say and indicate solar refrigeration type first aid knapsack dual temperature heat preservation system.

Background

The heat preservation bag is a bag which can be used for outdoor picnic or daily life, is used for containing various foods and keeping the temperature and the freshness of the foods, and belongs to one of outdoor bags. Present thermal-insulation bag can only be put into thermal-insulation bag the inside with the heat retaining material of needs, if heat retaining thing can slowly rise along with time, then can't keep warm for a long time, must take out the thing with the needs cooling needs, then put into the refrigerator, and then reach heat retaining effect, and be not suitable for emergency, and different article are all different to the requirement of temperature, current thermal-insulation bag can only satisfy the temperature requirement of single article, if need keep warm different article, then need set up a plurality of thermal-insulation bags, both cause the waste, still occupy not little controlling part.

Therefore, a new system is needed to be designed, so that the refrigeration can be taken away at any time and heat can be preserved at any time in case of emergency, the system is suitable for outdoor and indoor use, the temperature requirements of different articles can be met, and the cost is saved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide two temperature heat preservation systems of solar refrigeration type first aid knapsack.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a solar refrigeration type first-aid backpack dual-temperature heat preservation system comprises a heat preservation structure and a backpack, wherein a first heat preservation cavity and a second heat preservation cavity are arranged in the heat preservation structure, a first insert and a second insert are arranged at one end, close to the backpack, of the heat preservation structure, a first insert and a second insert are arranged on the backpack, a first slot and a second slot are arranged on the backpack, a first cavity and a second cavity are arranged in the backpack, the first slot is communicated with the first cavity, the second slot is communicated with the second cavity, a first through groove is arranged in the first insert, the first through groove is communicated with the first heat preservation cavity, a second through groove is arranged in the second insert, the second through groove is communicated with the second heat preservation cavity, when the backpack is not separated from the heat preservation structure, the first insert is inserted into the first slot, and the first through groove is communicated with the first cavity, the second inserting strips are inserted into the second inserting grooves, and the second through grooves are communicated with the second cavity.

The further technical scheme is as follows: the backpack is characterized in that a plurality of sealing blocks are connected to the backpack, and when the backpack is separated from the heat insulation structure, the sealing blocks are respectively inserted into the first slot and the second slot.

The further technical scheme is as follows: the sealing block is connected with the backpack through an elastic piece.

The further technical scheme is as follows: insulation construction includes insulation box and refrigeration structure, be equipped with in the insulation box first heat preservation chamber and second heat preservation chamber, refrigeration structure includes refrigeration power component, first evaporimeter, second evaporimeter, first fan and second fan, first evaporimeter and first fan are arranged in respectively first heat preservation intracavity, second evaporimeter and second fan are arranged in respectively the second heat preservation intracavity, first evaporimeter, second evaporimeter, first fan and second fan respectively with refrigeration power component connects, refrigeration power component arranges in the insulation box.

The further technical scheme is as follows: the heat preservation box body comprises an upper box body and a lower box body, the refrigeration power assembly is located in the lower box body, and the upper box body is internally provided with the first heat preservation cavity and the second heat preservation cavity.

The further technical scheme is as follows: the refrigeration power component comprises a compressor, a condenser and a capillary tube, the compressor is connected with the condenser, the condenser is connected with the capillary tube, the capillary tube is connected with the first evaporator, the first evaporator is connected with the second evaporator, and the second evaporator is connected with the compressor.

The further technical scheme is as follows: be equipped with solar panel on the heat preservation box, set up control module, power and dc-to-ac converter T1 in the lower box, solar panel with control module connects, power and dc-to-ac converter T1 respectively with control module connects, compressor, first fan and second fan respectively with the dc-to-ac converter is connected.

The further technical scheme is as follows: the control assembly comprises a solar power supply unit; the solar power supply unit comprises a reverse diode D9 connected with a solar panel, a MOS tube D5, an inductor L2 and a voltage dividing resistor R13.

The further technical scheme is as follows: the control assembly comprises a power supply protection unit and an output unit; the battery is respectively connected with the power supply protection unit and the output unit, and the output unit is connected with the inverter.

The further technical scheme is as follows: the power supply protection unit comprises a control chip B1, MOS tubes Q01, Q02 and voltage dividing resistors RO3, RO2 and R12, the control chip B1 controls the on-off of the MOS tubes Q01 and Q02, and the current of the battery is subjected to over-discharge protection through the voltage dividing resistors RO3, RO2 and R12.

Compared with the prior art, the utility model beneficial effect be: the utility model has the advantages that by arranging the separable structure of the backpack and the heat insulation structure, the backpack is internally provided with the first cavity and the second cavity, the heat insulation structure is provided with the first heat insulation cavity and the second heat insulation cavity, when the articles in the backpack are needed to be used, only the inserting groove of the backpack is needed to be separated from the inserting strip of the heat insulation structure, and the sealing strip on the backpack is inserted into the first inserting groove and the second inserting groove, so that the backpack can be taken away independently; when article in the knapsack need keep warm, then only need insert the first strip of inserting and establish in first slot, insert the second strip of inserting and establish in the second slot, alright utilize the refrigeration structure to refrigerate the knapsack, first cavity and second cavity are independent, first heat preservation chamber and second heat preservation chamber are independent, realize when emergency appears, can take away the refrigeration thing and take away and keep warm at any time, be applicable to outdoors and indoor, can compatible different article's temperature requirement, save cost.

The invention is further described with reference to the accompanying drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic perspective view of a dual-temperature thermal insulation system of a solar refrigeration type emergency backpack according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a backpack according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a thermal insulation structure according to an embodiment of the present invention;

fig. 4 is a schematic view of the working principle of the refrigeration assembly according to the embodiment of the present invention

Fig. 5 is an exploded schematic view of a thermal insulation structure according to an embodiment of the present invention;

fig. 6 is a schematic left-view structural diagram of a dual-temperature thermal insulation system of a solar refrigeration type emergency backpack according to an embodiment of the present invention;

fig. 7 is a block diagram of a control module according to an embodiment of the present invention;

fig. 8 is a specific circuit diagram of a solar power supply unit according to an embodiment of the present invention;

fig. 9 is a specific circuit diagram of a power supply protection unit according to an embodiment of the present invention;

fig. 10 is a specific circuit diagram of an output unit according to an embodiment of the present invention;

fig. 11 is a specific circuit diagram of a temperature control unit according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

According to the specific embodiment shown in fig. 1-11, the solar refrigeration type emergency backpack dual-temperature heat preservation system provided by the embodiment can be applied indoors or outdoors, can also be used in emergency situations, can directly take away the backpack when in use, is convenient and fast, can meet the temperature requirements of different articles, and saves the cost.

Referring to fig. 1, the dual-temperature thermal insulation system of the solar refrigeration type emergency backpack is characterized by comprising a thermal insulation structure and a backpack, wherein a first thermal insulation cavity 21 and a second thermal insulation cavity 22 are arranged in the thermal insulation structure, a first insert 23 and a second insert 24 are arranged at one end of the thermal insulation structure close to the backpack, a first insert 14 and a second insert 17 are arranged on the backpack, a first cavity 13 and a second cavity 17 are arranged in the backpack, the first insert 14 is communicated with the first cavity 13, the second insert is communicated with the second cavity 17, a first through groove 231 is arranged in the first insert 23, the first through groove 231 is communicated with the first thermal insulation cavity 21, a second through groove 241 is arranged in the second insert 24, the second through groove 241 is communicated with the second thermal insulation cavity 22, when the backpack is not separated from the thermal insulation structure, the first insert 23 is inserted into the first insert 14, the first through groove 231 is communicated with the first cavity 13, and the second insert 24 is inserted into the second insert, the second through groove 241 communicates with the second cavity 17.

Articles are placed in the backpack, the heat insulation structure is separated from the backpack, and when the articles need to be used, the heat insulation structure only needs to be separated from the backpack; when not needing to use article, insulation construction can continue to input air conditioning in to the knapsack to the realization is to the heat preservation of article.

In addition, divide into first cavity 13 and second cavity 17 in the knapsack, and first cavity 13 does not communicate with each other with second cavity 17, divide into first heat preservation chamber 21 and second heat preservation chamber 22 with insulation construction, when keeping warm respectively to the article in first cavity 13 and the second cavity 17, only need adjust the temperature in first heat preservation chamber 21 and second heat preservation chamber 22, can realize satisfying the temperature demand of different article.

In an embodiment, referring to fig. 2, the backpack is connected with a plurality of sealing blocks 16, and when the backpack is separated from the thermal insulation structure, the sealing blocks 16 are respectively inserted into the first slot 14 and the second slot. When the backpack is used, the backpack needs to be separated from the heat preservation structure, and the first slot 14 and the second slot of the backpack need to be sealed by the sealing blocks 16, so that the first cavity 13 and the second cavity 17 in the backpack are ensured to be in a sealed state, and the temperature in the first cavity 13 and the second cavity 17 does not change rapidly.

In one embodiment, referring to fig. 2, the sealing block 16 is connected to the backpack via an elastic member 15.

In particular, the elastic element 15 is a rubber band, which makes it possible to obtain the sealing block 16 quickly when it is necessary to apply the sealing block 16.

Specifically, the shape of the seal block 16 inserted into the first slot 14 corresponds to the shape of the first slot 14, and the shape of the seal block 16 inserted into the second slot corresponds to the shape of the second slot.

In this embodiment, the sealing block 16 is made of rubber or silicone, the size of the sealing block 16 inserted into the first slot 14 is slightly larger than that of the first slot 14 to ensure that the sealing block 16 can seal the first slot 14, and the size of the sealing block 16 inserted into the second slot is slightly larger than that of the second slot to ensure that the sealing block 16 can seal the second slot.

In an alternative embodiment, the backpack includes a backpack body 10 and straps 11, the first cavity 13 and the second cavity 17 are disposed in the backpack body 10, the first slot 14 and the second slot are both disposed on the backpack body 10, the sealing block 16 is also disposed and connected to the backpack body 10, the straps 11 are connected to the backpack body 10, and the straps 11 can facilitate the user to carry the backpack.

In addition, in an optional embodiment, the side ends and the upper end of the backpack body 10 are respectively provided with a handle 12 for a user to take the backpack, specifically, the two end surfaces far away from the heat insulation structure are provided with the handles 12, and the two carrying modes are suitable for different carrying requirements and scenes.

In an embodiment, please refer to fig. 3, the insulation structure includes an insulation box and a refrigeration structure, a first insulation chamber 21 and a second insulation chamber 22 are disposed in the insulation box, the refrigeration structure includes a refrigeration power assembly, a first evaporator 60, a second evaporator 61, a first fan 50 and a second fan 51, the first evaporator 60 and the first fan 50 are respectively disposed in the first insulation chamber 21, the second evaporator 61 and the second fan 51 are respectively disposed in the second insulation chamber 22, the first evaporator 60, the second evaporator 61, the first fan 50 and the second fan 51 are respectively connected to the refrigeration power assembly, and the refrigeration power assembly is disposed in the insulation box.

Utilize refrigeration structure to refrigerate first heat preservation chamber 21 and second heat preservation chamber 22, with the help of the structure of first heat preservation chamber 21 and first cavity 13 intercommunication, second heat preservation chamber 22 and second cavity 17 intercommunication, transmit and neutralize the temperature in the heat preservation intracavity and the temperature in the cavity, realize the heat preservation to the object in the cavity of knapsack.

In an embodiment, referring to fig. 5 and fig. 6, the heat preservation box includes an upper box 20 and a lower box 30, the refrigeration power assembly is located in the lower box 30, and the upper box 20 is provided with a first heat preservation cavity 21 and a second heat preservation cavity 22.

The side end of the lower box 30 is connected with a bracket 40, and the backpack is placed on the bracket 40 so as to realize the placement and the limit when the backpack is connected with the heat insulation structure.

In an alternative embodiment, a plurality of heat dissipation grooves 31 are formed at one side end of the lower case 30 to dissipate heat of the refrigeration power assembly disposed in the lower case 30.

In an embodiment, referring to fig. 4, the refrigeration power assembly includes a compressor 80, a condenser 70 and a capillary tube, the compressor 80 is connected to the condenser 70, the condenser 70 is connected to the capillary tube, the capillary tube is connected to the first evaporator 60, the first evaporator 60 is connected to the second evaporator 61, and the second evaporator 61 is connected to the compressor 80.

The gaseous refrigerant passing through the condenser 70 encounters the capillary tube, but the tube of the capillary tube is relatively thin, so that a large amount of refrigerant is crowded within the condenser 70. The compressor 80 drives the condenser 70 to push the refrigerant to the capillary tube, and the capillary tube is blocked to prevent the refrigerant from passing through, so that the refrigerant retained in the condenser 70 is more and more, the pressure is higher and higher, the gaseous refrigerant starts to be liquefied after the pressure is increased, and the liquefaction process is accompanied by heat absorption, so that the refrigerant retained in the front half section of the condenser 70, namely the direction close to the compressor 80, is in a high-temperature and high-pressure liquid state; the refrigerant is slowly cooled in the condenser 70 until it is cooled to room temperature, and begins to slowly queue through the capillary tube; the first evaporator 60 and the second evaporator 61 have thick pipes, and the pressure of the refrigerant passing through the capillary tube is suddenly reduced, so that the liquid refrigerant starts to boil and gasify, and heat is absorbed in the process until the refrigerant completely passes through the first evaporator 60 and the second evaporator 61 and is completely in a gas state at normal temperature and normal pressure; the gaseous refrigerant is again passed through the compressor 80 and a new cycle is continued. The temperature in the heat preservation cavity can be adjusted by means of the change of the state of the refrigerant, and the heat preservation cavity is practical and environment-friendly.

When the compressor 80 starts a power supply, the first evaporator 60 and the second evaporator 61 are turned on to refrigerate and cool, at the moment, the first fan 50 and the second fan 51 are turned on to blow cold air into the thermal insulation box body, air in the first thermal insulation cavity 21 of the thermal insulation box body is conveyed into the first cavity 13 of the backpack through the first through groove 231 and the first slot 14, so that objects in the first cavity 13 of the backpack are cooled, and the backpack can be cooled without being taken out; of course, the air in the second insulating cavity 22 of the insulating box body can be introduced into the second cavity 17 of the backpack through the second through groove 241 and the second slot, so as to cool the object in the second cavity 17 of the backpack, and the backpack can be cooled without being taken out. By controlling the working speed of the first evaporator 60 in the first heat preservation cavity 21 and the working speed of the second evaporator 61 in the second heat preservation cavity 22, the temperature requirements of different articles are met.

In an optional embodiment, a baffle plate may be further disposed in the first heat-preserving chamber 21 and/or the second heat-preserving chamber 22, the baffle plate divides the first heat-preserving chamber 21 and/or the second heat-preserving chamber 22 into a first chamber and a second chamber, wherein the first evaporator 60 and the first fan 50 are disposed in the second chamber, and/or the second evaporator 61 and the second fan 51 are disposed in the second chamber, and the baffle plate is provided with a plurality of ventilation slots, and the first chamber is used for placing articles, so as to realize a dual-purpose type of the heat-preserving structure, which can cool and preserve the backpack, and can cool and preserve the individual articles, thereby improving the practicability of the whole system.

In an embodiment, referring to fig. 7, a solar panel 101 is disposed on the thermal insulation box, a control unit, a power supply and an inverter T1 are disposed in the lower box 30, the solar panel 101 is connected to the control unit, the power supply and the inverter T1 are respectively connected to the control unit, and the compressor 80, the first fan 50 and the second fan 51 are respectively connected to the inverter. The solar panel 101 is used for providing energy, so that the cost is saved when the solar panel is used outdoors.

In an embodiment, referring to fig. 8, the control assembly includes a solar power unit 102; the solar power supply unit 102 includes a backward diode D9 connected to the solar panel 101, a MOS transistor D5, an inductor L2, and a voltage dividing resistor R13. The solar panel 10130P + WPEKOM +24V passes through a backward diode D9, a MOS tube D5, an inductor L2 and a voltage dividing resistor R13 to achieve the solar charging function.

In an alternative embodiment, referring to fig. 7, the control component includes a power protection unit 103 and an output unit 105; the battery 104 is connected to the power supply protection unit 103 and the output unit 105, and the output unit 105 is connected to the inverter.

Utilize solar panel 101 to obtain the energy, convert the electric energy into and charge battery 104, battery 104 is to compressor 80, first evaporimeter 60, first fan 50, second evaporimeter 61 and second fan 51 power supply, and this heat preservation system of being convenient for can use in the place that can't directly provide the power, and the practicality is strong.

The power supply protection unit 103 plays a role in temperature and overcurrent protection in the process of solar power supply, and in addition, under the condition of violent sun, solar power supply can be utilized, so that the practicability is high.

The power supply protection unit 103 includes a control chip B1, MOS transistors Q01, Q02, and voltage dividing resistors RO3, RO2, and R12, and controls the on/off of the MOS transistors Q01, Q02 by the control chip B1, so that the current of the battery 104 is overdischarged through the voltage dividing resistors RO3, RO2, and R12.

In the present embodiment, the model number of the control chip B1 is SB 8254.

As shown in fig. 9, B + is connected to a control chip B1, passes through a voltage dividing resistor RO3 and Q02, and passes through a voltage dividing resistor R03 in one path to reach a 14-pin VC2 of the control chip B1, when the voltage exceeds the range of 22-27.2V, a high potential is given by a pin 3 of the control chip B1 to achieve the over-discharge protection, and the P + current has output; b1-is connected with a control chip B1, passes through voltage dividing resistors RO2 and Q02, one path of voltage passes through voltage dividing resistor RO2 and reaches 14 pins VC2 of the control chip B1, when the voltage exceeds the range of 22-27.2V, 3 pins of the control chip B1 give a high potential so as to achieve the over-discharge protection, and P + current has output; b2-is connected with a control chip B1, passes through voltage dividing resistors RO1 and Q02, one path of voltage passes through voltage dividing resistor R02 and reaches 14 pins VC2 of the control chip B1, when the voltage exceeds the range of 22-27.2V, 3 pins of the control chip B1 give a high potential so as to achieve the over-discharge protection, and P + current has output; b3-is connected with a control chip B1, passes through a voltage division resistor R12 and a Q02, one path of voltage passes through a voltage division resistor R12 and reaches a 14 pin VC4 of the control chip B1, when the voltage exceeds the range of 22-27.2V, 3 pins of the control chip B1 give a high potential so as to achieve the over-discharge protection, and P + current has output; when the B + voltage is normal, the voltage goes through the MOS transistor Q02 to Q01, and then the actual voltage of the battery 104 is output to drive the load.

The P + is connected with a main control board + BAT of the whole machine, when the voltage of the P + exceeds 27.2+/-0.5V, the P + passes through MOS transistors Q02 and Q01 to a control chip B1, so that the voltage does not reach B +, and the battery 104 cannot be charged; when the P + voltage is normal, the battery 104 is charged through the MOS transistors Q02 and Q01 to B +.

In addition, the power supply protection unit 103 further includes a buzzer, a transistor Q4, and a current limiting resistor R23, and when the temperature exceeds a set temperature, the transistor Q4 is turned on, and the buzzer operates. When ambient temperature is higher than 55 ℃, NTC resistance diminishes, voltage process triode Q4 work, thereby it is out of work to lead to control chip B1, play the protection, voltage does not have the output, thereby play the effect of protection battery 104, if not in the scope, control chip B112 foot can produce a high level, switch on to triode Q4 through current-limiting resistance R38, MUVCC passes through BZ1BEL bee calling organ, earth conduction again, the buzzer reports to the police. Avoiding damage to compressor 80 due to excessive temperatures.

The battery 104P + passes through MOS tubes Q01 and Q02, then passes through a resistor R018 to the 3 rd pin of a control chip B1, passes through a 16 th pin of the control chip B1, is output to a high-voltage switching power through a resistor R03 to an inverter + terminal pin, passes through a resistor R11 to the ground, returns to the battery 104P-, is connected to the negative electrode of the battery 104, the positive electrode of the battery 104 passes through a switch S1 to a fuse, passes through diodes D1 and D2, passes through triodes Q1 and Q2, generates a half sine wave through capacitors C3 to C4, passes through a diode D3 to a triode Q3 to a resistor R8, generates a half sine wave at this time, passes through a capacitor C5 to a diode D4, passes through a triode Q4, passes through a resistor R9 to a triode Q5, generates another half sine wave at this time, passes through a single-side of 5 MOS tubes Q7 and Q8Q 68653 to another side of the high-power tube V8427 to generate an alternating current transformer V86220, ac to two paths to control the first fan 50 and the second fan 51.

In an embodiment, referring to fig. 6, two temperature control units 106 are disposed in the lower box 30, wherein one temperature control unit 106 is connected to the compressor 80 and the second fan 51, the other temperature control unit 106 is connected to the first fan 50, and the two temperature control units 106 are connected to the inverter T1.

Specifically, the lower box 30 is provided with a display screen 32 for displaying the current temperature inside the thermal insulation box.

Specifically, in an alternative embodiment, referring to fig. 7, the temperature control unit 106 includes a transformer T11 connected to the inverter T1, a thermistor R5 and an operational amplifier C3, wherein the compressor 80 and the second fan 51 are respectively connected to the transformer T11 through a relay K1; when the temperature reaches the set value, the thermistor R5 becomes small, the operational amplifier C3 operates, so that the relay K1 is turned off, and the compressor 80 and the corresponding second fan 51 stop operating.

When the whole system is connected with a power supply, the power supply current is divided into two paths of L and N, wherein the L path passes through the relay K1, the N path passes through the switch SW1 to the compressor 80 and the second fan 51, and at the moment, the compressor 80 and the second fan 51 start to work and refrigerate.

And the L path passes through a transformer T11, then passes through a bridge rectifier circuit B11, then passes through a voltage stabilizer Q2 for power supply voltage stabilization, passes through a filter capacitor C2 for filtering, and reaches a thermistor R5, when the temperature reaches a set value, the thermistor R5 is reduced, so that an operational amplifier C3 starts to work, and passes through a Mos tube Q1 to a relay K1, so that a relay K1 is disconnected, and then the power supply circuit of the compressor 80 and the second fan 51 is disconnected, so that the compressor 80 and the second fan 51 are closed, and the purpose of controlling the temperature is achieved.

When the whole system is connected with a power supply, the power supply current is divided into two paths of L and N, the L path passes through the relay K1, the N path passes through the switch SW1 to the first fan 50, and at the moment, the first fan 50 starts to work and refrigerate.

And the L path passes through a transformer T11, then passes through a bridge rectifier circuit B11, then passes through a voltage stabilizer Q2 for power supply voltage stabilization, passes through a filter capacitor C2 for filtering, and reaches a thermistor R5, when the temperature reaches a set value, the thermistor R5 is reduced, so that an operational amplifier C3 starts to work, and passes through a Mos tube Q1 to a relay K1, so that a relay K1 is disconnected, and then the power supply circuit of the first fan 50 is disconnected, so that the first fan 50 is closed, and the purpose of controlling the temperature is achieved.

In an optional embodiment, the total number of the first slots 14 and the second slots is at least two, the number of the first inserting strips 23 is the same as that of the first slots 14, the number of the second inserting strips 24 is the same as that of the second slots, and the plurality of first slots 14 and the plurality of second slots can realize the air inlet and outlet.

When the first insert 23 of the thermal insulation box body is inserted into the first slot 14 of the backpack, the second insert 24 of the thermal insulation box body is inserted into the second slot of the backpack, the backpack is placed on the bracket 40, the power supply is connected, the compressor 80 is started, the first evaporator 60 and the second evaporator 61 start to refrigerate, the first fan 50 and the second fan 51 blow cold air into the first thermal insulation cavity 21 and the second thermal insulation cavity 22 corresponding to the thermal insulation box body, and further blow cold air into the first cavity 13 and the second cavity 17 corresponding to the backpack, at this time, the articles in the backpack needing to refrigerate start to cool, when the internal temperature of the backpack reaches the set temperature, the temperature of the first cavity 13 in the backpack keeps consistent with the temperature in the first thermal insulation cavity 21, the temperature of the second cavity 17 in the backpack keeps consistent with the temperature in the second thermal insulation cavity 22, the temperature control unit 106 is used to drive the compressor 80 to stop working, the first fan 50 and/or the second fan 51 are/is also driven to stop working, at this time, the backpack can be taken out according to the actual situation, and the sealing block 16 on the backpack is inserted into the first slot 14 and the second slot of the backpack, so that the first cavity 13 and the second cavity 17 in the backpack are in a sealed state, and the backpack can be used; when the backpack needs to be kept warm all the time, the backpack is placed on the support 40 all the time, the sealing block 16 is not inserted into the first slot 14 and the second slot, the first inserting strip 23 of the heat preservation box body is inserted into the first slot 14 of the backpack, and the second inserting strip 24 of the heat preservation box body is inserted into the second slot of the backpack; when the backpack is needed to be used, the backpack taking process is repeated, and the operation is convenient.

When the temperature in the first cavity 13 reaches the set temperature, that is, the temperature in the first thermal insulation cavity 21 reaches the set temperature during the cooling process, the first fan 50 in the first thermal insulation cavity 21 stops working,

when the temperature in the second cavity 17 reaches the set temperature, that is, the temperature in the second heat-preservation chamber 22 reaches the set temperature, the second fan 51 in the second heat-preservation chamber 22 stops working at this time.

When the internal temperatures of the first cavity 13 and the second cavity 17 reach the set temperatures at the same time, the first fan 50 and the second fan 51 stop operating, the backpack is taken out, and the seal block 16 is sifted into the first slot 14 and the second slot of the backpack.

In an alternative embodiment, the compressor 80 may be divided into a DC compressor 80 and/or an AC compressor 80 to allow the overall system to be used in both homes and vehicles.

When an emergency occurs, the refrigerated goods can be taken away and insulated at any time by connecting the backpack with the refrigerated goods; the device is suitable for the condition that the hospital has articles which need to be preserved and insulated for a long time, and has small space, electricity saving and adjustable temperature; when an emergency occurs, the device can be taken away immediately; the heat-preservation bag can be placed in a vehicle for heat preservation in the field and can also be taken away immediately; light weight, convenient carrying and labor intensity reduction.

In an optional embodiment, the side wall of the upper case 20 is provided with a sealing strip, when the backpack is separated from the thermal insulation structure, the sealing strip is inserted into the first through groove 231 and the second through groove 241, so as to seal the first through groove 231 and the second through groove 241, of course, the outer end of the sealing strip is provided with a suction cup sealing edge, and when the sealing strip is inserted into the first through groove 231 and the second through groove 241, the suction cup sealing edge is attracted to the outer end surfaces of the first inserting strip 23 and the second inserting strip 24, so as to improve the sealing performance of the first through groove 231 and the second through groove 241.

In an optional embodiment, the peripheries of the first insert 23 and the second insert 24 are respectively provided with a silica gel layer, the size of the first insert 23 is the same as that of the first slot 14, the size of the second insert 24 is the same as that of the second slot, and the silica gel layer can seal a gap between the first insert 23 and the first slot 14 and a gap between the second insert 24 and the second slot.

According to the solar refrigeration type emergency backpack dual-temperature heat insulation system, the backpack and the heat insulation structure are arranged in a separable structure, the backpack is internally provided with the first cavity 13 and the second cavity 17, the heat insulation structure is provided with the first heat insulation cavity 21 and the second heat insulation cavity 22, when articles in the backpack are needed, only the inserting groove of the backpack is required to be separated from the inserting strip of the heat insulation structure, and the sealing strip on the backpack is inserted into the first inserting groove 14 and the second inserting groove, so that the backpack can be taken away independently; when article in the knapsack need keep warm, then only need insert first cutting 23 and establish in first slot 14, insert second cutting 24 and establish in the second slot, alright utilize refrigeration structure to refrigerate the knapsack, first cavity 13 is independent with second cavity 17, first heat preservation chamber 21 and second heat preservation chamber 22 are independent, when the realization is when emergency appears, can take away the refrigeration thing and keep warm at any time, be applicable to outdoors and indoor, can compatible different article's temperature requirement, and the cost is saved.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims (10)

1. The solar refrigeration type first-aid backpack dual-temperature heat preservation system is characterized by comprising a heat preservation structure and a backpack, wherein a first heat preservation cavity and a second heat preservation cavity are arranged in the heat preservation structure, a first inserting strip and a second inserting strip are arranged at one end, close to the backpack, of the heat preservation structure, a first inserting groove and a second inserting groove are arranged on the backpack, a first cavity and a second cavity are arranged in the backpack, the first inserting groove is communicated with the first cavity, the second inserting groove is communicated with the second cavity, a first through groove is arranged in the first inserting strip, the first through groove is communicated with the first heat preservation cavity, a second through groove is arranged in the second inserting strip, the second through groove is communicated with the second heat preservation cavity, when the backpack is not separated from the heat preservation structure, the first inserting strip is inserted in the first inserting groove, and the first through groove is communicated with the first cavity, the second inserting strips are inserted into the second inserting grooves, and the second through grooves are communicated with the second cavity.

2. The dual-temperature thermal insulation system of a solar refrigeration type emergency backpack according to claim 1, wherein a plurality of sealing blocks are connected to the backpack, and when the backpack is separated from the thermal insulation structure, the sealing blocks are respectively inserted into the first slot and the second slot.

3. The solar refrigeration type emergency backpack dual temperature insulation system of claim 2, wherein the sealing block is connected to the backpack by an elastic member.

4. The dual-temperature heat preservation system of the solar refrigeration type emergency backpack according to any one of claims 1 to 3, wherein the heat preservation structure comprises a heat preservation box body and a refrigeration structure, the heat preservation box body is internally provided with the first heat preservation cavity and the second heat preservation cavity, the refrigeration structure comprises a refrigeration power assembly, a first evaporator, a second evaporator, a first fan and a second fan, the first evaporator and the first fan are respectively arranged in the first heat preservation cavity, the second evaporator and the second fan are respectively arranged in the second heat preservation cavity, the first evaporator, the second evaporator, the first fan and the second fan are respectively connected with the refrigeration power assembly, and the refrigeration power assembly is arranged in the heat preservation box body.

5. The solar refrigeration type emergency backpack dual-temperature insulation system according to claim 4, wherein the insulation box body comprises an upper box body and a lower box body, the refrigeration power assembly is located in the lower box body, and the first insulation cavity and the second insulation cavity are arranged in the upper box body.

6. The solar refrigeration type emergency backpack dual-temperature insulation system according to claim 5, wherein the refrigeration power assembly comprises a compressor, a condenser and a capillary tube, the compressor is connected with the condenser, the condenser is connected with the capillary tube, the capillary tube is connected with the first evaporator, the first evaporator is connected with the second evaporator, and the second evaporator is connected with the compressor.

7. The dual-temperature thermal insulation system of the solar refrigeration type emergency backpack according to claim 6, wherein a solar panel is disposed on the thermal insulation box, a control module, a power source and an inverter T1 are disposed in the lower box, the solar panel is connected to the control module, the power source and the inverter T1 are respectively connected to the control module, and the compressor, the first fan and the second fan are respectively connected to the inverter.

8. The solar refrigeration type emergency backpack dual temperature insulation system of claim 7, wherein the control assembly comprises a solar power unit; the solar power supply unit comprises a reverse diode D9 connected with a solar panel, a MOS tube D5, an inductor L2 and a voltage dividing resistor R13.

9. The solar refrigeration type emergency backpack dual-temperature insulation system according to claim 7, wherein the control assembly comprises a power supply protection unit and an output unit; the battery is respectively connected with the power supply protection unit and the output unit, and the output unit is connected with the inverter.

10. The dual-temperature thermal insulation system of a solar refrigeration type emergency backpack according to claim 9, wherein the power supply protection unit comprises a control chip B1, MOS transistors Q01 and Q02, and voltage dividing resistors RO3, RO2 and R12, the control chip B1 controls the conduction or the disconnection of the MOS transistors Q01 and Q02, and the current of the battery is over-discharged through the voltage dividing resistors RO3, RO2 and R12.

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