Temperature control device

Abstract

The utility model relates to the technical field of logistics transportation, and discloses a temperature control device which comprises a heat preservation shell and at least one temperature control assembly. The temperature control assembly comprises a warm paste and a humidifying part; a storage space for placing transported articles is arranged in the heat preservation shell; the warm paste and the humidifying part are both located in the storage space, and the humidifying part is used for continuously providing water for the warm paste when the warm paste is heated. According to the utility model, the humidity of the warming paste can be increased by utilizing the humidifying part, and the warming paste can be normally and continuously heated in a low-temperature environment, so that the heating efficiency of the warming paste can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of logistics transportation, and particularly relates to a temperature control device. BACKGROUND

[0002] When transporting certain goods, if the ambient temperature is low, the goods are generally provided with temperature control packaging to avoid freezing damage. For example, when transporting cosmetics, fruits and vegetables, and living things in winter, the goods often face the problem of freezing damage caused by low ambient temperature. Therefore, when transporting in winter, temperature control packaging is generally used as an anti-freezing measure.

[0003] However, in the field of logistics transportation, providing temperature control packaging for the transportation of cosmetics, fruits and vegetables, and living things increases the cost of logistics transportation. Therefore, how to effectively and economically control the temperature of the transported goods is a technical problem that needs to be solved. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model provides a temperature control device to effectively and economically control the temperature of the transported goods.

[0005] In a first aspect, the utility model provides a temperature control device, which comprises a heat preservation shell and at least one temperature control assembly; the temperature control assembly comprises a warm patch and a humidifying part;

[0006] The heat preservation shell is internally provided with a storage space for placing the transported goods;

[0007] The warm patch and the humidifying part are both located in the storage space, and the humidifying part is used to continuously provide moisture for the warm patch when the warm patch generates heat.

[0008] In some optional embodiments, the humidifying part is made of water-absorbing material;

[0009] The humidifying part is located in the heat transfer range of the warm patch.

[0010] In some optional embodiments, the humidifying part is attached to the surface of the warm patch.

[0011] In some optional embodiments, the humidifying part is located on the side of the warm patch away from the non-woven fabric layer.

[0012] In some optional embodiments, the water absorption amount of the humidifying part is 20g-100g.

[0013] In some optional embodiments, the humidifying part comprises one or more layers of water-absorbing paper.

[0014] In some optional embodiments, the temperature control assembly is located on the bottom surface of the storage space; and the part of the storage space above the temperature control assembly is used to place the transported goods.

[0015] In some optional embodiments, the humidifying part is located below the warm pad.

[0016] In some optional embodiments, the temperature control device further comprises: a cold storage bag.

[0017] The cold storage bag is located in the storage space, and the cold storage bag contains a gel body and / or a liquid cold storage agent.

[0018] In some optional embodiments, the number of the cold storage bags is multiple.

[0019] The multiple cold storage bags are uniformly distributed in the storage space.

[0020] The temperature control device provided by the utility model, in addition to setting the warm pad in the heat preservation shell, a humidifying part is further set, the humidifying part can continuously provide moisture for the warm pad when the warm pad is heating, so that the humidity of the warm pad can be kept; when the temperature control device is in a low temperature environment, even if the original moisture in the air is reduced, the humidity of the warm pad can be increased by using the humidifying part, so that the warm pad can normally and continuously heat, so that the heating efficiency of the warm pad can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the specific embodiments or related technologies of the utility model, the drawings needed to be used in the specific embodiments or related technology description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0022] Figure 1 It is a structure schematic view of the temperature control device according to the embodiment of the utility model;

[0023] Figure 2 It is a structure schematic view of the test box in the first test example according to the embodiment of the utility model;

[0024] Figure 3 It is a temperature curve diagram of the first test example according to the embodiment of the utility model;

[0025] Figure 4 It is another structure schematic view of the temperature control device according to the embodiment of the utility model;

[0026] Figure 5 It is a structure schematic view of the test box in the second test example according to the embodiment of the utility model;

[0027] Figure 6 It is a temperature curve diagram of the second test example according to the embodiment of the utility model;

[0028] Figure 7 is a structural schematic diagram of a test box in a third test example according to an embodiment of the present application;

[0029] Figure 8 is a temperature curve diagram of the third test example according to an embodiment of the present application;

[0030] Figure 9 is a schematic diagram of two sides of a warm patch according to an embodiment of the present application;

[0031] Figure 10 is a structural schematic diagram of a test box in a fourth test example according to an embodiment of the present application;

[0032] Figure 11 is a temperature curve diagram of the fourth test example according to an embodiment of the present application.

[0033] Explanation of reference signs:

[0034] 10, heat preservation shell; 101, heat preservation carton; 102, foam box; 20, warm patch; 201, non-woven fabric layer; 202, heat conduction layer; 30, humidifying part; 301, water absorbing paper; 40, cold storage bag; 401, ice bag; 100, simulation box. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] When using temperature control packaging to prevent freezing of transported goods, the temperature control packaging can have the following several ways:

[0037] (1) using PCM (Phase Change Material, phase change material) phase change cold accumulator + heat preservation box: commonly used in medicine, high-end food, dangerous chemical transportation scenes, the scheme can be used for various climate changes throughout the year, including high temperature weather and low temperature weather, and the temperature is controlled within a certain range;

[0038] (2) using a compressor + battery pack to make a constant temperature box: a supplement to a refrigerated truck, used for small-scale goods transportation, also commonly used in medicine, high-end food, dangerous chemical transportation scenes, the scheme can be used for various climate changes throughout the year, including high temperature weather and low temperature weather, and the temperature is controlled within a certain range;

[0039] (3) Use warm patch + incubator: Warm patch is used by people who are afraid of cold in winter, and is attached to the inner layer of clothing close to the human body, which brings people a sense of warmth due to its heating effect. It is later used for winter transportation to achieve heat preservation.

[0040] In the landing process, in addition to the feasibility of the scheme, economic benefits are indispensable. Although the above-mentioned mode (1) and mode (2) can be applied to various scenes, mode (3) has advantages in volume and weight, which can save logistics transportation costs. In addition, in specific scenarios, the effect is the same, and the material input cost is lower, so the application range is wider.

[0041] The warm patch is generally composed of iron powder, activated carbon, salt and the like, and reacts with oxygen in the air to release heat. The heating duration of the warm patch can generally reach several hours; and due to the long duration required for logistics transportation, a long-acting warm patch is generally used, which can heat for 72 hours (about three days). However, when the warm patch is used to heat the transported products based on the above-mentioned mode (3), the problem of warm patch failure often occurs after a few hours. The warm patch no longer heats or heats slightly, which cannot achieve the heating duration marked on the product, thereby affecting the temperature control effect on the transported products and causing freezing damage and other problems.

[0042] During the implementation of the present application, the inventors found that after the warm patch in the above-mentioned mode (3) fails, the warm patch will reheat when it is exposed to normal temperature air again.

[0043] Specifically, the inventors carried out heat preservation tests of mode (3) for a corresponding duration according to the logistics transportation duration requirement. During the test for the corresponding duration, the external environment temperature simulates winter climate conditions, and the value is about -30℃ to -20℃. When the warm patch is heating, the temperature curve in the incubator changes relatively slowly. When there is no warm patch heating or the warm patch is consumed (the warm patch fails), the temperature curve in the incubator changes rapidly and tends to approach the ambient temperature, at which point the test is ended. However, after the test is ended, the warm patch will reheat when it is exposed to a normal temperature environment (about 20℃ to 30℃ environment).

[0044] Since oxygen is needed for the warm patch to generate heat, it is first suspected that the oxygen content is low after heating for a period of time due to the relatively closed incubator, which causes the warm patch to produce less heat and the heating efficiency to decrease. Based on this, three groups of the same warm patch were selected for testing: the first group of warm patch was directly exposed to normal temperature environment conditions, and the second group of warm patch was directly exposed to low temperature environment conditions. After a period of time, it was found that the first group of warm patch could heat normally, but the second group of warm patch had already tended to approach the ambient temperature (about -20℃) even though it was in an environment with sufficient air, i.e. the second group of warm patch failed. The third group of warm patch was in a vacuum condition and did not react. However, when the third group of warm patch was exposed to air, the reaction started.

[0045] Based on the above three groups of tests, it is known that the warm patch needs air, but in a low temperature environment, there are other factors affecting the heating of the warm patch. Further, due to the low temperature environment, the moisture in the air will condense, which will reduce the air humidity, so it is suspected that the air humidity is reduced to cause the warm patch to fail.

[0046] It is found through testing that the heating of the warm patch in a low temperature environment is indeed related to humidity, and the heating effect of the warm patch can be effectively improved by maintaining the humidity of the warm patch. Based on this, the utility model embodiment provides a temperature control device which continuously provides moisture for the warm patch, so that the warm patch can continuously heat, thereby improving the heating effect of the warm patch in a low temperature environment.

[0047] Figure 1 is a structural schematic view of the temperature control device according to the utility model embodiment, as shown in Figure 1 , the temperature control device comprises: a heat preservation shell 10 and at least one temperature control assembly; the temperature control assembly comprises a warm patch 20 and a humidifying part 30; Figure 1 A temperature control device comprising a temperature control assembly is illustrated.

[0048] In this embodiment, the temperature control device is specifically a device for temperature control packaging of transported goods in the field of logistics transportation, and correspondingly, the heat preservation shell 10 is internally provided with a storage space for placing the transported goods; the storage space is closable. For example, the heat preservation shell 10 comprises an upper cover plate, and the storage space is closed by the upper cover plate. The transported goods may, for example, be cosmetics, fruits and vegetables, living things and other goods that need to be kept warm, which cannot be kept at a too low temperature for a long time.

[0049] Among them, the heat preservation shell 10 can be a relatively fixed structure shell, as shown in Figure 1 , the heat preservation shell 10 can be a box structure; for example, the heat preservation shell 10 can be a heat preservation carton, a heat preservation foam box, etc. Alternatively, the heat preservation shell 10 can also be a flexible shell made of heat preservation material; for example, the heat preservation shell 10 is a flexible heat preservation bag, etc. The shape and material of the heat preservation shell 10 are not limited in this embodiment, as long as it can provide a storage space and has a heat preservation function.

[0050] The warm patch 20 and the humidifying part 30 of the temperature control assembly are both located in the storage space, and the humidifying part 30 is used to continuously provide moisture for the warm patch 20 when the warm patch 20 heats.

[0051] In this embodiment, in addition to the warm patch 20, the storage space is also provided with a humidifying part 30 capable of humidifying the warm patch 20, and when the warm patch 20 heats, the humidifying part 30 can continuously provide moisture for the warm patch 20, so that the humidity of the warm patch 20 can be maintained within a reasonable range, and the warm patch 20 can continuously heat. The humidifying part 30 may, for example, be a small humidifier.

[0052] It can be understood that the temperature control assembly is mainly used to control the temperature in the storage space of the temperature control device to avoid the temperature in the storage space being too low, and the number of temperature control assemblies (i.e., the number of warm pads 20 and humidifying parts 30) can be set based on actual conditions; for example, the larger the storage space of the temperature control device and the higher the temperature requirement, the more temperature control assemblies are needed, and the number of temperature control assemblies can be determined based on actual needs.

[0053] To verify and illustrate that the warm pad 20 is moisturized in a low-temperature environment, thereby effectively improving the heating of the warm pad 20, a test example is provided below, in which three test boxes are tested; each of the three test boxes is a paper shell with a heat preservation function, i.e., a heat preservation paper box 101 is used to simulate the heat preservation shell 10, and each of the test boxes is provided with a warm pad 20 of the same model and a simulation box 100 for simulating transported goods.

[0054] Figure 2 A structure diagram of the three test boxes in the first test example is shown, which shows a cross-sectional view of the three test boxes.

[0055] As shown in Figure 2 , the test box A1 includes a heat preservation paper box 101, a warm pad 20, and a simulation box 100.

[0056] The test box A2 includes a heat preservation paper box 101, a warm pad 20, and a simulation box 100. That is, the test box A1 and the test box A2 have the same structure.

[0057] The test box A3 includes a heat preservation paper box 101, a warm pad 20, two pieces of soaked water-absorbing paper 301, and a simulation box 100; the water-absorbing paper 301 in the test box A3 has a certain amount of water. In the test box A3, the water-absorbing paper 301 is attached to the warm pad 20.

[0058] The test box A1 is placed in a normal temperature environment (about 26°C), the test box A2 and the test box A3 are placed in a low-temperature environment (about -10°C), and the test is performed, during which the internal temperature of each test box (specifically, the temperature inside the simulation box 100, for example, the temperature at the bottom of the simulation box 100) and the temperature of the two environments are collected in real time, and the temperature curve is shown in Figure 3 , in which the abscissa represents time and the ordinate represents temperature (°C). The recorded results of the test example are shown in Table 1.

[0059] Table 1

[0060] Record name Number of data points Duration Maximum value (°C) Minimum value (°C) Average value (°C) Internal temperature of test chamber A1 128 4h14m 32.3 30.8 31.9 Internal temperature of test chamber A2 128 4h14m -0.4 -4.0 -3.2 Internal temperature of test chamber A3 128 4h14m 0.8 -3.3 -2.2 Ambient temperature (normal temperature) 128 4h14m 26.2 24.3 25.4 Ambient temperature (low temperature) 128 4h14m -8.3 -8.9 -8.7

[0061] Based on Figure 3As can be seen from the test results shown in Table 1, the heating effect can be improved by adding the warm patch 20 in the box. Moreover, the water absorption paper 301 is used to keep the humidity of the warm patch 20, which can effectively improve the heating effect of the warm patch 20 and prolong the heating time.

[0062] The temperature control device provided in the embodiment can continuously provide moisture for the warm patch 20 when the warm patch 20 is heating, so that the humidity of the warm patch 20 can be maintained. When the temperature control device is in a low-temperature environment, even if the original moisture in the air is reduced, the humidity of the warm patch 20 can be increased by using the humidifying part 30, so that the warm patch 20 can continuously heat normally, thereby improving the heating efficiency of the warm patch 20.

[0063] In some optional embodiments, as shown in Figure 4 The temperature control device further comprises a cold storage bag 40. The cold storage bag 40 is located in the storage space, and the cold storage bag 40 contains a gel and / or a liquid cold storage agent.

[0064] In the embodiment, the cold storage bag 40 is initially provided with a material having a cold storage function, such as a gel and / or a liquid cold storage agent. In a low-temperature environment, the liquid cold storage agent will solidify (phase change), i.e., change into a solid state. By using the feature that the cold storage agent can release heat when it solidifies, the temperature control effect of the temperature control device can be further improved. The gel is generally made of a polyamide substance and has good heat preservation performance.

[0065] For example, the cold storage bag 40 can be an ice bag, an ice box, etc., and the material of the shell of the cold storage bag 40 is not limited. The main material of the cold storage agent in the cold storage bag 40 is water. For example, the cold storage agent can be a mixture containing water and salt to form a simple phase change material, which has a low cost. Of course, the cold storage agent can also be made of other solvents, and the composition of the cold storage agent is not limited in the embodiment as long as it meets the cold storage requirements.

[0066] Optionally, as shown in Figure 4 The number of the cold storage bags 40 is multiple, and the multiple cold storage bags 40 are uniformly distributed in the storage space. For example, the multiple cold storage bags 40 are uniformly distributed around the warm patch 20 (or the humidifying part 30), so that the temperature distribution inside the storage space is relatively uniform, and the humidifying part 30 can continuously volatilize moisture.

[0067] Another test example is provided below, in which three test boxes are tested, taking ice bag 401 as the cold storage bag 40 as an example; wherein the three test boxes are all paper shells with heat preservation function, i.e. the heat preservation paper box 101 simulates the heat preservation shell 10, and the same type of ice bag 401 and the simulation box 100 are arranged inside. The ice bag 401 is initially provided with liquid cold storage agent, which can release heat when solidified, so as to achieve a certain degree of heat preservation effect while avoiding the temperature in the test box from changing sharply, which is conducive to observation.

[0068] Figure 5 The structure schematic diagram of the three test boxes in the second test example is shown, which shows the cross-sectional schematic diagram of the three test boxes.

[0069] As shown in Figure 5 , the test box B1 includes the heat preservation paper box 101, the ice bag 401 of 1 kg, and the simulation box 100.

[0070] The test box B2 includes the heat preservation paper box 101, the warm patch 20, the ice bag 401 of 1 kg, and the simulation box 100.

[0071] The test box B3 includes the heat preservation paper box 101, the warm patch 20, the two pieces of soaked water absorption paper 301, the ice bag 401 of 1 kg, and the simulation box 100; wherein the water absorption paper 301 in the test box B3 has a certain amount of water. In the test box B3, the water absorption paper 301 is attached to the warm patch 20.

[0072] The test box B1, the test box B2, and the test box B3 are all placed in a low temperature environment (about -10℃), and are tested, and the internal temperature (specifically the temperature inside the simulation box 100, for example, the temperature at the bottom of the simulation box 100) of each test box and the corresponding environment temperature are collected in real time during the test. The temperature curve is shown in Figure 6 , the horizontal coordinate is time, and the vertical coordinate is temperature (℃). And the recorded results of this test example are shown in Table 2.

[0073] Table 2

[0074] Record name Number of data points Duration Maximum value (°C) Minimum value (°C) Average value (°C) Internal temperature of test chamber B1 143 4h44m -6.3 -6.4 -6.3 Internal temperature of test chamber B2 143 4h44m -3.2 -4.7 -4.2 Internal temperature of test chamber B3 143 4h44m -3.1 -3.9 -3.3 Ambient temperature (low temperature) 143 4h44m -9.3 -9.8 -9.5

[0075] Based on Figure 6 the test results shown in Table 2, it can be seen that the ice bag 401 added in the box has a certain heat preservation effect; the warm patch 20 and the ice bag 401 have better heat preservation effect. Further, the water absorption paper 301 is used to keep the humidity of the warm patch 20, which can further improve the heat preservation effect of the temperature control device.

[0076] In some optional embodiments, in order to reduce the cost, the humidifying part 30 is made of water absorption material; and the humidifying part 30 is located in the heat transfer range of the warm patch 20.

[0077] In this embodiment, the humidifying part 30 is made of a water-absorbing material, such as water-absorbing resin, and the like. The type of the water-absorbing material is not limited in this embodiment. The water-absorbing material absorbs a certain amount of water, and gradually evaporates the water in the water-absorbing material during use, thereby continuously providing moisture to the heating patch 20. In addition, when the heating patch 20 generates heat, the heat can be transferred to a certain range, which is referred to as a heat transfer range. The humidifying part 30 made of the water-absorbing material is located in the heat transfer range of the heating patch 20.

[0078] Specifically, when the temperature control device is used, for example, when the temperature control device is used to transport certain articles, a certain amount of water can be added to the humidifying part 30, such as spraying a certain amount of water on the humidifying part 30, or soaking the humidifying part 30, and the like, and the humidifying part 30 is arranged in the heat transfer range of the heating patch 20, so that when the heating patch 20 generates heat, the heat can heat the humidifying part 30, so that the humidifying part 30 can continuously evaporate water, and avoid freezing of the humidifying part 30 in a low temperature environment.

[0079] The distance between the humidifying part 30 and the heating patch 20 can be set, and the distance between them is less than a predetermined distance, so that the humidifying part 30 can be located in the heat transfer range of the heating patch 20. Alternatively, a material or device with heat transfer effect can be arranged between the humidifying part 30 and the heating patch 20, and is respectively attached to the humidifying part 30 and the heating patch 20, so that the heat generated by the heating patch 20 can also be indirectly transferred to the humidifying part 30.

[0080] Optionally, the humidifying part 30 is attached to the surface of the heating patch 20. The humidifying part 30 is arranged on the surface of the heating patch 20, so that the heating patch 20 can directly transfer heat to the humidifying part 30, and effectively ensure that the water in the water-absorbing material can continuously evaporate.

[0081] Optionally, the humidifying part 30 is a layered structure, so as to sufficiently receive the heat transferred by the heating patch 20. For example, the layered humidifying part 30 can be more fully attached to the heating patch 20. The humidifying part 30 can include one or more layers of water-absorbing paper 301. The water-absorbing paper 301 is made of a water-absorbing material, which has the functions of water absorption and water locking, and can also realize the function of maintaining the humidity of the heating patch 20.

[0082] To verify and illustrate that the warm patch 20 can effectively improve the heating of the warm patch 20 in a low-temperature environment, another test example is provided, in which three test boxes are tested; wherein the three test boxes are all foam material shells, that is, the foam box 102 simulates the heat preservation shell 10, and the inside of each test box is provided with an ice bag 401, which is initially provided with a liquid cold accumulator. The heat release characteristics of the solidified accumulator can achieve a certain degree of heat preservation effect while avoiding the rapid change of the temperature in the test box, which is conducive to observation.

[0083] Figure 7 The structure diagram of the three test boxes in the third test example is shown, which shows the cross-sectional view of the three test boxes.

[0084] As shown in Figure 7 , the test box C1 includes a foam box 102 and a 1kg ice bag 401.

[0085] The test box C2 includes a foam box 102, a 1kg ice bag 401 and a warm patch 20.

[0086] The test box C3 includes a foam box 102, a 1kg ice bag 401, a warm patch 20 and a piece of soaked water-absorbing paper 301, that is, the water-absorbing paper 301 in the test box C3 has a certain amount of water. Among them, in the test box C3, the water-absorbing paper 301 is attached to the warm patch 20.

[0087] The test box C1, the test box C2 and the test box C3 are all placed in a low-temperature environment of-20℃, and are tested. During the test, the internal temperature and the environmental temperature of each test box are collected in real time, and the temperature curve is shown in Figure 8 , the abscissa is time, and the ordinate is temperature (℃). And the recorded results of this test example are shown in Table 3.

[0088] Table 3

[0089] Record name Number of data points Duration Maximum value (°C) Minimum value (°C) Average value (°C) Internal temperature of test chamber C1 3228 2d5h47m 26.8 -19.6 -9.6 Internal temperature of test chamber C2 3281 2d6h40m 27.8 -3.4 0.4 Internal temperature of test chamber C3 3278 2d6h37m 27.7 1.7 5.9 Ambient temperature 3206 2d5h25m 25.6 -20.5 -18.3

[0090] Based on Figure 8 the test results shown in Table 3, it can be seen that the addition of the warm patch 20 in the box body can improve the heating effect. And the use of the water-absorbing paper 301 to keep the humidity of the warm patch 20 can effectively improve the heating effect of the warm patch 20, and can improve the heating time.

[0091] In this embodiment, the humidifying part 30 is made of water-absorbing material, which can continuously maintain the humidity of the warm patch 20 at low cost, and the humidifying part 30 is located in the heat transfer range of the warm patch 20, which can effectively avoid the humidifying part 30 from freezing in a low-temperature environment, thereby affecting the evaporation of water in the water-absorbing material. The humidifying part 30 is attached to the surface of the warm patch 20, so that the warm patch 20 can directly transfer heat to the humidifying part 30, effectively ensuring that the water in the water-absorbing material can continuously evaporate. The water-absorbing paper 301 provides water for the warm patch 20, which is low in cost and conducive to wide use.

[0092] In some optional embodiments, the temperature control assembly is located at the bottom of the storage space; and the part of the storage space above the temperature control assembly is used for placing the transported goods. As shown in Figure 1 , the warm patch 20 and the humidifying part 30 are both located at the lowermost part of the storage space, and the storage space above them is used for placing the transported goods; in a low-temperature environment, the warm patch 20 generates heat, and then the cold air flows downward and the hot air flows upward, so that the warm patch 20 can better provide heat for the transported goods and has a better heat preservation effect on the transported goods.

[0093] Optionally, as shown in Figure 1 , the humidifying part 30 is located below the warm patch 20. Since the humidifying part 30 contains water, for example, the water-absorbing material in the humidifying part 30 contains water, the humidifying part 30 is arranged below the warm patch 20, which can prevent the water in the humidifying part 30 from polluting the transported goods, and the warm patch 20 can also directly abut the transported goods, thereby ensuring the heat transfer effect.

[0094] Optionally, the humidifying part 30 is located on the side of the warm patch 20 away from the non-woven fabric layer 201.

[0095] Figure 9 A schematic view of the two sides of the warm patch 20 is shown; as shown in Figure 9 , one side of the warm patch 20 is generally a non-woven fabric layer 201, which can ensure that the heating material inside the warm patch can contact with the air outside, so that a chemical reaction can occur and heat can be generated; if the humidifying part 30 such as the water-absorbing paper 301 is arranged at the non-woven fabric layer 201 of the warm patch 20, it may affect the air permeability of the warm patch 20. Arranging the humidifying part 30 on the side of the warm patch 20 away from the non-woven fabric layer 201 can avoid the influence of the attached humidifying part 30 on the heating effect of the warm patch 20 itself.

[0096] As shown in Figure 9 , the side of the warm patch 20 away from the non-woven fabric layer 201 is a heat-conducting layer 202, which is, for example, an aluminum foil. For example, the water-absorbing paper 301 can be attached to the heat-conducting layer 202.

[0097] Optionally, the water absorption of the humidifying part 30 is 20g-100g. For example, when the temperature control device is used, a single temperature control assembly can provide 20g-100g of water. If the water absorption of the humidifying part 30 is too large, although it can also ensure that the warm patch 20 normally heats, it will increase the weight of the temperature control device, thereby increasing the logistics transportation cost.

[0098] Next, a test example is provided, in which four test boxes are tested; all of the four test boxes are paper shells with heat preservation function, i.e., the heat preservation paper box 101 is used to simulate the heat preservation shell 10, and the inside of each test box is provided with the same type of warm patch 20, ice bag 401 and simulation box 100 for simulating transported articles.

[0099] Figure 10 The structure of the four test boxes in the fourth test example is shown, which shows the cross-sectional view of the four test boxes.

[0100] As shown in Figure 10 Test box D1 includes a heat preservation paper box 101, a warm patch 20, a 1kg ice bag 401 and a simulation box 100. The warm patch 20 is soaked in water.

[0101] Test box D2 includes a heat preservation paper box 101, a warm patch 20, two pieces of soaked water absorption paper 301, a 1kg ice bag 401 and a simulation box 100. The water absorption paper 301 and the warm patch 20 are arranged side by side, i.e., they are not attached.

[0102] Test box D3 includes a heat preservation paper box 101, a warm patch 20, two pieces of soaked water absorption paper 301, a 1kg ice bag 401 and a simulation box 100. The water absorption paper 301 is attached to the non-woven fabric layer 201 of the warm patch 20. Figure 10 The upper surface of the warm patch 20 is the surface corresponding to the non-woven fabric layer 201, and the lower surface is the surface corresponding to the heat conducting layer 202.

[0103] Test box D4 includes a heat preservation paper box 101, a warm patch 20, two pieces of soaked water absorption paper 301, a 1kg ice bag 401 and a simulation box 100. The water absorption paper 301 is attached to the heat conducting layer 202 of the warm patch 20.

[0104] In this test example, the water absorption paper 301 in each test box has the same properties: the size of the water absorption paper 301 is 13cm*18cm, the thickness of the two pieces of water absorption paper 301 is 2mm, and the water absorption is 61g. The warm patch 20 is a 72h long-acting warm patch, the size is 195mm*90mm, one side is a non-woven fabric layer 201, and the other side is a heat conducting layer 202 made of aluminum film material.

[0105] The test box D1, the test box D2, the test box D3 and the test box D4 are placed in a low temperature environment (about -10 DEG C) and tested, and the internal temperature of each test box (specifically, the temperature inside the simulation box 100, for example, the bottom temperature of the simulation box 100) and the two environmental temperatures are collected in real time during the test, and the temperature curve is as shown in Figure 11 The test results shown in Table 4 are as follows.

[0106] Table 4

[0107] Record name Number of data points Duration Maximum value (°C) Minimum value (°C) Average value (°C) Internal temperature of test chamber D1 216 7h10m 2.8 -2.8 1.2 Internal temperature of test chamber D2 216 7h10m 0.2 -4.0 -2.4 Internal temperature of test chamber D3 216 7h10m 3.3 -4.2 -1.7 Internal temperature of test chamber D4 216 7h10m 3.4 -1.7 -0.3 Ambient temperature (low temperature) 216 7h10m -9.1 -9.8 -9.5

[0108] Based on Figure 11 The test results shown in Table 4 are as follows.

[0109] The temperature control device provided in the embodiment can increase the humidity of the warm patch 20 by using the humidifying part 30, so as to improve the heating efficiency of the warm patch 20. In a low temperature environment, the physical water-locked material such as the water-absorbing paper is used as the humidifying part 30 and is close to the warm patch 20, so as to continuously provide humidity for the warm patch 20. The water-absorbing material such as the water-absorbing paper is in contact with the non-nonwoven layer (for example, the heat-conducting layer) of the warm patch 20, which can not only provide humidity for the warm patch 20 and make the warm patch 20 continuously heat, but also directly transfer heat from the warm patch 20 to the water-absorbing paper, prevent the water-absorbing paper from freezing, ensure that the water-absorbing paper can continuously provide humidity, and then the warm patch 20 continuously heat, so as to maintain the stability of the temperature in the box.

[0110] Although the embodiments of the present application are described in combination with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and variations should be covered within the protection scope of the present application.

Claims

1. A temperature control device, characterized by, The application relates to a temperature control device for transporting goods, comprising: a temperature control device (10) and at least one temperature control assembly; the temperature control assembly comprises a heating pad (20) and a humidifying part (30); the temperature control device (10) is internally provided with a storage space for placing the goods to be transported; the heating pad (20) and the humidifying part (30) are both located in the storage space, and the humidifying part (30) is used for continuously providing moisture for the heating pad (20) when the heating pad (20) generates heat.

2. The temperature control device of claim 1, wherein The humidifying part (30) is made of water-absorbing material. The humidifying part (30) is located in the heat transfer range of the heating pad (20).

3. The temperature control device of claim 2, wherein, The humidifying part (30) is attached to the surface of the heating pad (20).

4. The temperature control device of claim 3, wherein The humidifying part (30) is located on the side of the heating pad (20) away from the non-woven fabric layer (201).

5. The temperature control device of claim 2, wherein, The water absorption amount of the humidifying part (30) is 20-100 g.

6. A temperature control device according to any one of claims 2 to 5, wherein The humidifying part (30) comprises one or more layers of water-absorbing paper (301).

7. The temperature control device of claim 1, wherein The temperature control assembly is located on the bottom surface of the storage space; the part of the storage space above the temperature control assembly is used for placing the goods to be transported.

8. The temperature control device of claim 7, wherein, The humidifying part (30) is located below the heating pad (20).

9. The temperature control device of claim 1, wherein, The application further comprises: a cold storage bag (40); the cold storage bag (40) is located in the storage space, and the cold storage bag (40) contains gel and / or liquid cold storage agent.

10. The temperature control device of claim 9, wherein, The number of the cold storage bags (40) is multiple. The multiple cold storage bags (40) are uniformly distributed in the storage space.

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