Defrosting and anti-freezing device

Abstract

A base of the defrosting and anti-freezing device is provided with a containing cavity and an air inlet which are communicated with each other, an inserting body is provided with an inserting groove and an air outlet surrounding the inserting groove, and the air outlet is communicated with the containing cavity; a heating assembly is arranged in the containing cavity and comprises a controller, a fan, a heating piece and a temperature detector, the fan, the heating piece and the temperature detector are electrically connected with the controller, the temperature detector is used for detecting the environment temperature, and the controller controls the fan and the heating piece to operate in different modes to conduct heating and heat preservation on the electronic equipment according to the detection result of the temperature detector. Or defrosting and closing the electronic equipment. Therefore, heating and heat preservation can be carried out on the electronic equipment used in the cold chain environment, it is ensured that the electronic equipment can be placed in the refrigeration house for use for a long time, startup and shutdown in the refrigeration house are supported, the electronic equipment separated from the cold chain environment can be heated to rapidly defrost, and the use experience and reliability of the cold chain electronic equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of defrosting and antifreezing, and in particular to a defrosting and antifreezing device for cold chain electronic equipment. Background Art

[0002] Cold chain electronic devices are generally used in cold storage in extremely low temperature environments. To ensure that the electronic equipment can be used normally, heating plates are generally installed inside the equipment to heat and keep its screens, batteries and other components warm. First of all, this method requires the electronic equipment to remain powered on before entering the cold storage, and the power cannot be turned off during the use of the cold storage. Therefore, it is not suitable to place the electronic equipment in the cold storage for a long time. Secondly, it does not support cold start of electronic equipment in the cold storage, which is inconvenient to use. Furthermore, when the electronic equipment is taken out of the cold storage, it will frost, and the heating plate inside it cannot quickly remove the frost on the surface of the equipment, thus affecting its use.

[0003] Therefore, it is necessary to provide a defrost and antifreeze device that supports the long-term use of cold chain electronic equipment in the cold storage, supports the electronic equipment to be turned on in the cold storage, and can quickly defrost the electronic equipment after being taken out of the cold storage, so as to solve the above technical problems. Summary of the invention

[0004] The object of the present invention is to provide a defrost and antifreeze device that supports the long-term use of cold chain electronic equipment in a cold storage, supports the startup of electronic equipment in a cold storage, and can quickly defrost the electronic equipment after being taken out of the cold storage.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a defrost and antifreeze device is provided for defrosting and antifreezing electronic equipment used in a cold chain, the device comprising a base, a plug-in body and a heating assembly; wherein the base is provided with a connected accommodating cavity and an air inlet; the plug-in body is arranged on the base, and the plug-in body is provided with a slot and an air outlet surrounding the slot, the slot is isolated from the accommodating cavity, the air outlet is connected to the accommodating cavity, and the slot is used to accommodate the electronic equipment; the heating assembly comprises a controller and a temperature detector, a heating plate and a fan electrically connected to the controller respectively, at least the heating plate and the fan are arranged in the accommodating cavity, the temperature detector is used to detect the ambient temperature, the controller controls the operation of the fan and the heating plate according to the detection result of the temperature detector, the fan is arranged below the heating plate and is used to draw external air from the air inlet into the accommodating cavity, the heating plate is used to heat the gas, and the heated hot air is output from the air outlet to heat, keep warm or defrost the electronic equipment.

[0006] Preferably, the defrost and antifreeze device also includes a charging connector, which is arranged at the bottom of the slot and electrically connected to the controller. The charging connector is used to charge the plugged electronic device, thereby ensuring that the electronic device can be placed in the cold storage for a long time. It can also be determined whether the electronic device is plugged into the slot based on the electrical connection signal of the charging connector, making the determination more convenient.

[0007] Preferably, a drainage channel connected to the slot is provided through the side wall of the connector, and the drainage channel is arranged to be inclined downward from the bottom of the slot toward the outside of the slot. When the electronic device is quickly heated for defrosting, melted water on the electronic device can flow out of the drainage channel, thereby ensuring the reliability of the use of the electronic device.

[0008] Preferably, a drainage channel connected to the slot is provided through the side wall of the connector, and the bottom of the slot or / and the bottom of the electronic device has a slope compared to the drainage channel. When the electronic device is quickly heated for defrosting, the water in the slot can be discharged along the drainage channel, thereby ensuring the reliability of the use of the electronic device.

[0009] Preferably, the slot and the air outlet are both formed by a downward depression on the top of the plug-in body, and the drainage channel runs through the side wall of the plug-in body.

[0010] Preferably, the plug-in body includes an inner wall and an outer wall arranged at intervals, the air outlet is formed between the inner wall and the outer wall, the drainage channel is sealed between the inner wall and the outer wall, and the drainage channel gradually tilts downward from the inner wall to the outer wall.

[0011] Preferably, a step is provided at the bottom of the slot and / or the charging connector, so that when the electronic device is quickly heated for defrosting, the electronic device in the slot can be prevented from contacting the water at the bottom of the slot.

[0012] Preferably, the base includes a bottom plate, which is detachably mounted on the bottom of the base to seal the accommodating cavity. The air inlet is opened at the upper edge of the bottom plate. When the fan is running, external air is drawn into the accommodating cavity from the air inlet, and the bottom plate is used to seal the accommodating cavity, so that the gas in the accommodating cavity is heated faster and other debris can be prevented from entering the accommodating cavity.

[0013] Preferably, the bottom of the accommodating cavity is provided with an upwardly protruding boss, the fan is installed on the boss so that the fan is close to the heating plate, so that the air flow quickly reaches the heating plate for heating, and the air inlet is opened corresponding to the boss.

[0014] Preferably, a connection column protruding downward is provided on the top of the accommodating cavity, and the heating plate is hoisted on the connection column, so that the installation of the heating plate is more convenient.

[0015] Preferably, the air inlet is a through hole or a hollow hole, and the hollow hole can effectively prevent other impurities from entering the accommodating cavity and causing blockage.

[0016] Preferably, in the defrost and antifreeze device of the present invention, a cold storage mode, a normal temperature mode and a first temperature threshold are preset in the controller, and the controller obtains the current ambient temperature detected by the temperature detector and compares it with the first temperature threshold to determine whether the electronic device is in the cold storage mode or the normal temperature mode; wherein the first temperature threshold is the critical temperature between the electronic device entering the cold chain environment and the external environment, the cold storage mode is the heating mode required for the electronic device to work normally for a long time in the cold chain environment, and the normal temperature mode is the heating mode for the electronic device to leave the cold chain environment and enter the external environment.

[0017] Preferably, in the defrost and antifreeze device of the present invention, when the current ambient temperature detected by the temperature detector is lower than the first temperature threshold, the electronic device is in the cold storage mode, otherwise the electronic device is in the normal temperature mode; the heating mode in the cold storage mode is rapid heating and heat preservation, and the heating mode in the normal temperature mode is rapid heating, defrosting and shutting down.

[0018] Preferably, in the cold storage mode, the controller controls the fan to operate and controls the heating plate to heat at maximum power consumption until the surface temperature of the electronic device is greater than a second temperature threshold, and then the controller adjusts the power consumption of the heating plate in real time to maintain the surface temperature of the electronic device within a preset range near the second temperature threshold; in the normal temperature mode, the controller controls the fan to operate and controls the heating plate to heat at maximum power consumption until the surface temperature of the electronic device is greater than a third temperature threshold, and then the controller turns off the fan and the heating plate; wherein the second temperature threshold is the surface temperature of the electronic device that can be normally used in a cold chain environment, and the third temperature threshold is the normal surface temperature of the electronic device after leaving the cold chain environment and entering the external environment.

[0019] Preferably, the controller also pre-stores a first constant temperature corresponding to the temperature detector when the surface temperature of the electronic device is stable within a preset range near the second temperature threshold, and pre-stores a second constant temperature corresponding to the temperature detector when the surface temperature of the electronic device reaches the third temperature threshold.

[0020] Preferably, the controller controls the heating plate to adjust power consumption in real time so that the surface temperature of the electronic device is maintained within a preset range near the second temperature threshold.

[0021] Compared with the prior art, the defrost and antifreeze device of the present invention is provided with a base, a plug-in body protruding from the base, and a heating component arranged in the base, wherein a connected accommodating cavity and an air inlet are arranged on the base, a slot and an air outlet surrounding the accommodating cavity are arranged on the plug-in body, and the air outlet is connected to the accommodating cavity; a heating component is arranged in the accommodating cavity, and the heating component includes a controller and a fan, a heating plate and a temperature detector electrically connected thereto respectively, the temperature detector is used to detect the ambient temperature of the environment in which the defrost and antifreeze device is located, and the controller controls the fan and the heating plate to operate in different modes according to the detection result of the temperature detector to heat and keep the electronic equipment warm, or to defrost and shut down the electronic equipment. In this way, the electronic equipment used in the cold chain environment can be heated and kept warm, ensuring that the electronic equipment can be placed in the cold storage for long-term use, and supports the power on and off in the cold storage, and the electronic equipment out of the cold chain environment can be heated to quickly defrost, thereby improving the use experience and reliability of the cold chain electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the defrosting and antifreezing device of the present invention.

[0023] Figure 2 yes Figure 1 Exploded diagram of .

[0024] Figure 3 yes Figure 1 A cross-sectional view of .

[0025] Figure 4 yes Figure 1 Another cross-sectional view of .

[0026] Figure 5 yes Figure 1 Schematic diagram of usage status. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are now described with reference to the accompanying drawings, in which similar element numbers represent similar elements. It should be noted that the orientation descriptions involved in the present invention, such as the orientations or positional relationships indicated by up, down, left, right, front, and back, are all based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present application or / and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The first, second, etc. described are only used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] Combine first Figure 1-Figure 5As shown, the defrosting and antifreezing device 100 provided by the present invention is mainly used for defrosting and antifreezing electronic devices 200 used in a cold chain environment. The cold chain environment refers to an extremely low temperature environment, and the electronic devices 200 used in the cold chain environment include, for example, cold storage PDAs (Personal Digital Assistants), barcode scanners, RFID readers, POS machines, handheld devices, etc. Of course, the electronic devices 200 in this application are not limited to the aforementioned devices.

[0029] Continue to combine Figure 1-Figure 5 As shown, in one embodiment of the present invention, the defrost and antifreeze device 100 includes a base 110, a plug-in body 120 and a heating assembly 130. The base 110 is provided with a connected accommodating cavity 111 and an air inlet 112. The plug-in body 120 is protruding from the top surface of the base 110, and the plug-in body 120 is provided with a slot 121 and an air outlet 122 surrounding the slot 121. The slot 121 is isolated from the accommodating cavity 111 below, but the air outlet 122 is connected to the accommodating cavity 111 below. The slot 121 is used to plug in the electronic device 200 to be heated. The shape, size, etc. of the slot 121 are not specifically limited and can be flexibly set according to different electronic devices 200.

[0030] Combination Figure 2-Figure 4 As shown, in this embodiment, the heating assembly 130 includes a controller (not shown) and a fan 131, a heating plate 132 and a temperature detector 133 electrically connected thereto. At least the fan 131 and the heating plate 132 are disposed in the receiving cavity 111 on the base 110, and the fan 131 is disposed below the heating plate 132. The fan 131 is used to form air into an airflow so as to draw external air into the receiving cavity 111 through the air inlet 112. The heating plate 132 is used to heat the air in the receiving cavity 111. The hot air formed after heating rises and is blown out through the air outlet 122 to heat the electronic device in the slot 121. The temperature detector 133 is used to detect the ambient temperature of the environment in which the defrost and antifreeze device 100 and the electronic device 200 are located. The controller determines whether the defrost and antifreeze device 100 and the electronic device 200 are in a cold chain environment or in an external environment based on the detection result of the temperature detector 133, and controls the fan 131 to run or stop, and controls the heating plate 132 to heat, keep warm or stop heating according to different environments, so as to achieve heating and keeping warm of the electronic device 200 in the cold chain environment and defrosting and stopping heating in the external environment, as described later for details.

[0031] Continue to combine Figure 2-Figure 4As shown, in one embodiment of the present invention, the controller and the temperature detector 133 are also arranged in the accommodating cavity 111. Specifically, the heating component 130 also includes a mainboard 135, on which the controller and the temperature detector 133 are integrated. Among them, the controller is preferably a microcontroller unit (MCU), which is a highly integrated microcomputer chip with the advantages of high performance, low power consumption, small size, stability and reliability, and is particularly suitable for cold chain environments. The temperature detector 133 is preferably a thermistor, more specifically an NTC (Negative Temperature Coefficient) thermistor, which has the advantages of high sensitivity (about ±0.1°C) and low cost, and can achieve high-precision temperature detection. It can be understood that the controller and the temperature detector 133 are not limited to those in this embodiment, and other devices can be selected as needed.

[0032] Combination Figure 3-Figure 4 As shown, in this embodiment, the fan 131, the heating plate 132, and the main board 135 are sequentially installed in the accommodating chamber 111 from bottom to top, and the fan 131, the heating plate 132, and the main board 135 are spaced apart from each other. In this application, the NTC thermistor integrated on the main board 135 and the MCU are used to accurately detect the ambient temperature of the environment in which the defrost and antifreeze device 100 and the electronic device 200 are located, so as to accurately determine whether the two are in a cold chain environment or in an external environment. Then, the MCU controls the fan 131 and the heating plate 132 to operate in different modes, so as to achieve heating and heat preservation of the electronic device 200 in the cold chain environment and defrosting and stopping heating in the external environment, as described later. It is understandable that it is also feasible to respectively arrange the controller and the temperature detector 133 at any other position outside the accommodating chamber 111.

[0033] Continue to combine Figure 2-Figure 4As shown, in one embodiment of the present invention, the defrost and antifreeze device 100 further includes a charging connector 134. The charging connector 134 is mounted on the mainboard 135 and protrudes from the bottom of the slot 121. The charging connector 134 is electrically connected to the MCU, and the MCU controls the charging connector 134 to charge the electronic device 200 plugged into the slot 121. The specific model of the charging connector 134 is set according to the specific electronic device 200, for example, it can be USB type-C, PogoPin, etc., which is not specifically limited here. By setting the charging connector 134 in the slot 121, when the electronic device 200 is plugged into the slot 121, the charging interface of the electronic device 200 can be plugged into the charging connector 134. In this way, on the one hand, the heating component 130 can be used to heat and keep the electronic device 200 warm, and on the other hand, the electronic device 200 can be charged at the same time, thereby ensuring that the electronic device 200 can be placed in a cold chain environment such as a cold storage for a long time, and supporting the electronic device 200 to be turned on and off in the cold storage.

[0034] In this embodiment, the MCU can further determine whether the electronic device 200 is plugged into the slot 121 according to the electrical connection signal of the charging connector 134. When it is determined that the electronic device 200 is plugged into the slot 121, the heating plate 132 and the fan 131 are controlled to operate, thereby making the determination and control more convenient, and no other devices are required to detect whether the electronic device 200 is plugged into the slot 121, so that the circuit structure and the logic control method are simplified. Of course, it is also feasible to detect whether the electronic device 200 is plugged into the slot 121 by other detection devices.

[0035] Combine the following Figure 3-Figure 4 As shown, in one embodiment of the present invention, the interior of the base 110 is hollow to form the accommodating chamber 111. In addition, the base 110 further includes a bottom plate 110a, which is detachably mounted on the bottom of the base 110 to seal the accommodating chamber 111, and the air inlet 112 is opened on the bottom plate 110a. The fan 131 is preferably installed corresponding to the air inlet 112, so that when the fan 131 is running, the air forms an airflow, thereby drawing the external air into the accommodating chamber 111 from the air inlet 112 and blowing it to the heating plate 132, and then the heating plate 132 heats the gas. The arrangement of the bottom plate 110a makes it easier to install the main board 135, the heating plate 132, and the fan 131, and the bottom plate 110a is used to seal the accommodating chamber 111, so that the gas in the accommodating chamber 111 is heated faster, and other debris can be prevented from entering the accommodating chamber 111. It is understandable that it is feasible even if the bottom plate 110a is not provided, that is, it is also feasible to make the bottom of the accommodating cavity 111 open as a whole.

[0036] Continue to combine Figure 3-Figure 4 As shown, in a specific embodiment of the present invention, the heating component 130 is provided with two fans 131. Correspondingly, two air inlets 112 are provided on the bottom plate 110a, and the two fans 131 are installed corresponding to the two air inlets 112 respectively. More preferably, the bottom plate 110a is provided with two bosses 113 protruding upward, and the two bosses 113 are respectively provided corresponding to the two air inlets 112. The fan 131 is installed on the boss 113, so that the position of the fan 131 and the heating plate 132 is closer, so that the air flow quickly reaches the heating plate 132, thereby accelerating the heating speed of the gas. Of course, it is also feasible to only open one larger air inlet 112 on the bottom plate 110a, and enable the air inlet 112 to be connected to the two fans 131.

[0037] In a more preferred embodiment, the platform of the boss 113 is set to a hollow structure to connect to the air inlet 112, and the fan 131 is installed on the platform of the boss 113, so that the installation of the fan 131 is more convenient and the support is more stable, and the gas can smoothly enter the accommodating cavity 111 through the through hole on the platform. At the same time, the hollow structure of the platform can effectively prevent other impurities from entering the accommodating cavity 111 and causing blockage. It is understandable that it is also feasible to open a through hole connected to the air inlet 112 on the platform of the boss 113 so that the airflow can enter directly through the air inlet 112.

[0038] Continue to combine Figure 3-Figure 4 As shown, in a specific embodiment of the present invention, the top of the accommodating cavity 111 is provided with a connection column 114 protruding downward, the connection column 114 is provided at the edge of the accommodating cavity 111, and the number of the connection columns 114 is not limited, and the heating plate 132 is connected to the connection column 114, so as to facilitate the installation of the heating plate 132. In a specific embodiment, the four corners of the top of the accommodating cavity 111 are provided with connection columns 114, and the heating plate 132 is hoisted by the four connection columns 114 located at the four corners. Of course, the heating plate 132 can also be installed in other ways.

[0039] Combine the following Figure 1-Figure 4As shown, in one embodiment of the present invention, the outer diameter of the plug-in body 120 is smaller than the outer diameter of the base 110, so that the overall structure of the defrost and antifreeze device 100 is simple and occupies a small space. The plug-in body 120 can be integrally formed with the base 110 or fixed to the top surface of the base 110 after being formed separately. Among them, the slot 121 and the air outlet 122 are both formed by the top of the plug-in body 120 being recessed downward, and the air outlet 122 surrounds the slot 121 and is connected to the accommodating cavity 111 below. Furthermore, the top of the air outlet 122 can be set to a hollow structure (see Figure 1-2 As shown) or set to be hollow, no specific limitation is made here. In a specific embodiment, the plug-in body 120 includes an inner wall 120a and an outer wall 120b that are spaced apart, the air outlet 122 is formed between the inner wall 120a and the outer wall 120b, and the interior of the inner wall 120a surrounds the slot 121. In addition, the inner wall 120a, the outer wall 120b and the top surface of the base 110 are an integrated structure, that is, the base 110, the plug-in body 120, the accommodating cavity 111, the slot 121, and the air outlet 122 can be formed by an integrated molding method.

[0040] It is understandable that making the outer diameter of the plug-in body 120 the same as the outer diameter of the base 110 does not affect the implementation of the technical solution of the present application.

[0041] Continue to combine Figure 1-Figure 4 As shown, in one embodiment of the present invention, the plug-in body 120 is further provided with a drainage channel 123 connected to the slot 121, the number of the drainage channels 123 is not specifically limited, and the drainage channel 123 is arranged to be inclined outward and downward from the bottom of the slot 121, such as Figure 3 More specifically, the drainage channel 123 is sealed between the inner wall 120a and the outer wall 120b, and the drainage channel 123 gradually slopes downward from the inner wall 120a to the outer wall 120b, as shown in FIG. Figure 3 In this embodiment, drainage channels 123 are respectively provided at both ends of the slot 121, and two drainage channels 123 are provided at each end. Figure 1-2 In this way, when the electronic device 200 is rapidly heated and defrosted, the melted water on the electronic device 200 can be discharged from the slot 121 through the drain channel 123, thereby preventing the electronic device 200 from being flooded and ensuring the reliability of the electronic device 200.

[0042] It is understandable that the water in the slot 121 is not limited to being drained through the inclined drainage channel 123. In other embodiments, the bottom of the slot 121 or / and the bottom of the electronic device may be set to have a slope compared to the drainage channel 123, for example, the bottom of the slot 121 or / and the bottom of the electronic device may be set to be sloped, or steps may be set at the bottom of the charging connector 134 or / and the electronic device, etc. In this way, even if the drainage channel 123 is horizontal, the water in the slot 121 may be drained through the drainage channel 123.

[0043] Of course, in some embodiments, the drainage channel 123 may not be provided, but a step may be provided at the bottom of the slot 121 and / or the charging connector 134, or a water collecting tank may be provided at the bottom of the slot 121, so as to prevent the electronic device 200 plugged into the slot 121 from contacting the water at the bottom of the slot 121, thereby also ensuring the reliability of the use of the electronic device.

[0044] Combine the following Figure 1-Figure 5 As shown, the defrost and antifreeze device 100 in the present invention presets a cold storage mode, a normal temperature mode and a first temperature threshold in the MCU according to the cold chain environment specifically used by the electronic device 200. Among them, the first temperature threshold is the critical temperature of the defrost and antifreeze device 100 and the electronic device 200 entering the cold chain environment and the external environment, which is flexibly defined according to the different cold chain environments used by the electronic device 200. The cold storage mode is the heating mode required for the electronic device 200 to work normally and for a long time in the cold chain environment, specifically rapid heating and heat preservation. The normal temperature mode is the heating mode for the electronic device 200 to leave the cold chain environment and enter the external environment, specifically rapid heating, defrosting and shutting down. For example, in a specific embodiment, the first temperature threshold is preset to 5°C, the ambient temperature <5°C is the cold storage mode, and the ambient temperature >5°C is the normal temperature mode. Of course, the first temperature threshold is not limited to the aforementioned data. When the defrost and antifreeze device 100 is working, the MCU compares the current ambient temperature detected by the temperature detector 133 with the first temperature threshold, determines whether it is currently in the cold storage mode or the normal temperature mode, and then controls the heating plate 132 and the fan 131 to work in the corresponding mode.

[0045] In one embodiment, the rapid heating in the cold storage mode and the normal temperature mode is performed by the MCU controlling the heating plate 132 to heat at maximum power consumption, and the MCU adjusts the power consumption of the heating plate 132 to adjust the heating temperature. Specifically, when it is determined that the electronic device 200 is in the cold storage mode, the MCU controls the fan 131 to run, and controls the heating plate 132 to heat at maximum power consumption. At this time, under the action of the fan 131, the external cold air is drawn into the accommodating cavity 111 from the air inlet 112 at the bottom, and blown toward the heating plate 132 after forming an airflow. The heating plate 132 heats the gas, and the heated hot air moves upward and is blown out from the air outlet 122, surrounding the electronic device 200. Figure 5 As shown, the electronic device 200 is quickly heated. Until the surface temperature of the electronic device 200 is greater than the second temperature threshold, the MCU adjusts the power consumption of the heating plate 132 in real time to maintain the surface temperature of the electronic device 200 within a preset range near the second temperature threshold, thereby keeping the electronic device 200 warm. The second temperature threshold is the surface temperature of the electronic device 200 that can be normally used in a cold chain environment, and the specific temperature is flexibly set according to the use requirements of different electronic devices 200 in cold chain environments with different temperatures.

[0046] In this embodiment, the MCU also pre-stores the first constant temperature T corresponding to the temperature detector 133 when the surface temperature of the electronic device 200 is stable within a preset range near the second temperature threshold. NTC1 When the electronic device 200 is rapidly heated, the MCU obtains the temperature of the temperature detector 133 in real time and determines whether the temperature reaches the first constant temperature T NTC1 When the electronic device 200 is heated to the first constant temperature T NTC1 After the above, that is, after the electronic device 200 is heated to the normal operating temperature, the MCU adjusts the power consumption of the heating plate 132 accordingly by obtaining the temperature of the temperature detector 133 in real time, and finally maintains the surface temperature of the electronic device 200 within a preset range near the second temperature threshold, thereby achieving heat preservation of the electronic device 200.

[0047] In this embodiment, during the development stage of the defrosting and antifreezing device 100, the first constant temperature T is obtained by experiment. NTC1 Specifically, the electronic device 200 is heated to make its surface temperature reach above the second temperature threshold, and then by gradually reducing the power consumption of the heating plate 132, it is tested that when the surface temperature of the electronic device 200 is stable within a preset range near the second temperature threshold, for example, within the range of ±1°C of the second temperature threshold, the temperature detector 133 has a first constant temperature T NTC1 , and then pre-store the first constant temperature T of the temperature detector 133 in the MCUNTC1 .

[0048] Thus, during the heat preservation stage, the MCU adjusts the power consumption of the heating plate 132 in real time to maintain the temperature of the temperature detector 133 at the first constant temperature T NTC1 , which can ensure that the surface temperature of the electronic device 200 remains within the normal operating temperature range, and ensure that the electronic device 200 can be placed in a cold chain environment such as a cold storage for a long time.

[0049] It should be noted that the first constant temperature T NTC1 It can be a specific value or a value range, which is determined based on whether the second temperature threshold is a specific value or a temperature range.

[0050] Continue to combine Figure 1-Figure 5 As shown, in this embodiment, when it is determined that the electronic device 200 is in the normal temperature mode, the MCU controls the fan 131 to operate, and controls the heating plate 132 to heat at the maximum power consumption. At this time, the fan 131 draws the external air into the accommodating cavity 111 from the air inlet 112 at the bottom, and blows it toward the heating plate 132 after forming an air flow. The heating plate 132 heats the air, and the heated hot air moves upward and is blown out from the air outlet 122, surrounding the electronic device 200. Figure 5 As shown, the electronic device 200 is quickly heated for defrosting. Until the surface temperature of the electronic device 200 is greater than the third temperature threshold, the MCU turns off the heating plate 132 and the fan 131. The third temperature threshold is the normal surface temperature of the electronic device 200 after it leaves the cold chain environment and enters the external environment, which is flexibly set according to the external environment in which the electronic device 200 is located.

[0051] In this embodiment, the MCU also pre-stores a second constant temperature T corresponding to the temperature detector 133 when the surface temperature of the electronic device 200 reaches the third temperature threshold. NTC2 When the electronic device 200 is heated for defrosting, the MCU determines whether the surface temperature of the electronic device 200 reaches the third threshold temperature by acquiring the temperature of the temperature detector 133 in real time. When reaching the third threshold temperature, the heating plate 132 and the fan 131 are turned off to complete the defrosting process.

[0052] In this embodiment, during the development stage of the defrosting and antifreezing device 100, the second constant temperature T is obtained by experiment. NTC2 Specifically, the electronic device 200 is heated to make its surface temperature reach above the third temperature threshold, and then the power consumption of the heating plate 132 is gradually reduced to test that when the surface temperature of the electronic device 200 is stabilized at the third temperature threshold, the temperature detector 133 has a corresponding second constant temperature T NTC2, and then pre-store the second constant temperature T of the temperature detector 133 in the MCU NTC2 Thus, in the defrosting stage, the MCU determines whether the surface temperature of the electronic device 200 has reached the third temperature threshold by acquiring the temperature of the temperature detector 133 in real time, so as to accurately turn off the heating plate 132 and the fan 131 to prevent overheating.

[0053] It should be noted that, in this embodiment, the third temperature threshold may be the same as or different from the first temperature threshold. In a preferred embodiment, the third temperature threshold is the same as the first temperature threshold. For example, the third temperature threshold is also preset to 5°C. In this way, when the surface temperature of the electronic device 200 is restored to above 5°C, that is, when it is restored to the temperature of the external environment where the electronic device 200 is outside the cold chain environment, the heating is stopped.

[0054] Combination Figure 1-Figure 3 As shown, during the process of heating and defrosting the electronic device 200 , melted water on the surface of the electronic device 200 can flow out of the slot 121 through the drainage channel 123 , thereby preventing water from accumulating in the slot 121 and causing damage to the electronic device 200 .

[0055] Recombination Figure 1-Figure 5 As shown, when the defrost and antifreeze device 100 of the present invention is in use, after the MCU detects that the electronic device 200 is inserted into the slot 121, the MCU first obtains the current ambient temperature detected by the temperature detector 133, and compares the current ambient temperature with the first temperature threshold to determine whether the electronic device 200 is in cold chain mode or normal temperature mode.

[0056] If the current ambient temperature is less than the first temperature threshold, it is determined to be in cold chain mode. At this time, the MCU controls the fan 131 and the heating plate 132 to start. Under the action of the fan 131, the external cold air is drawn into the accommodating chamber 111 from the air inlet 112 at the bottom, and blown to the heating plate 132 after forming an air flow. The heating plate 132 heats the gas, and the heated hot air moves upward and is blown out from the air outlet 122, surrounding the electronic device 200. Figure 5 As shown, the electronic device 200 is quickly heated. When the surface temperature of the electronic device 200 is greater than the second temperature threshold, the MCU adjusts the power consumption of the heating plate 132 in real time to maintain the surface temperature of the electronic device 200 within a preset range near the second temperature threshold, thereby keeping the electronic device 200 warm.

[0057] If the current ambient temperature is greater than the first temperature threshold, it is determined to be in normal temperature mode. At this time, the MCU controls the fan 131 and the heating plate 132 to start. Under the action of the fan 131, the external air is drawn into the accommodating chamber 111 from the air inlet 112 at the bottom, and blown to the heating plate 132 after forming an air flow. The heating plate 132 heats the air, and the heated hot air moves upward and is blown out from the air outlet 122, surrounding the electronic device 200. Figure 5 As shown, the electronic device 200 is quickly heated, thereby defrosting the electronic device 200. After a period of time, when the surface temperature of the electronic device 200 reaches the third temperature threshold, the MCU turns off the heating plate 132 and the fan 131.

[0058] In summary, according to the defrost and antifreeze device 100 of the present invention, a connected accommodating cavity 111 and an air inlet 112 are arranged on the base 110, a slot 121 and an air outlet 122 surrounding it are arranged on the plug-in body 120, and the air outlet 122 is connected to the accommodating cavity 111; a heating component 130 is arranged in the accommodating cavity 111, and the heating component 130 includes a controller and a fan 131, a heating plate 132 and a temperature detector 133 electrically connected thereto, respectively, the temperature detector 133 is used to detect the ambient temperature of the environment in which the defrost and antifreeze device 100 is located, and the controller controls the fan 131 and the heating plate 132 to operate in different modes according to the detection result of the temperature detector 133 to heat and keep the electronic device 200 warm, or to defrost and shut down the electronic device 200. In this way, the electronic device 200 used in the cold chain environment can be heated and insulated to ensure that the electronic device 200 can be placed in the cold storage for a long time and support power on and off in the cold storage. The electronic device 200 out of the cold chain environment can be heated for quick defrosting, thereby improving the user experience and reliability of the cold chain electronic equipment.

[0059] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A defrosting and antifreezing device for defrosting and antifreezing electronic equipment used in a cold chain, characterized in that: include: A base, wherein the base is provided with a communicating accommodation cavity and an air inlet; A plug-in body, arranged on the base, provided with a slot and an air outlet surrounding the slot, the slot is isolated from the accommodating cavity, the air outlet is communicated with the accommodating cavity, and the slot is used to accommodate the electronic device; The heating component includes a controller and a temperature detector, a heating plate and a fan electrically connected to the controller respectively, at least the heating plate and the fan are arranged in the accommodating cavity, the temperature detector is used to detect the ambient temperature, the controller controls the operation of the fan and the heating plate according to the detection result of the temperature detector, the fan is arranged below the heating plate and is used to draw external air into the accommodating cavity from the air inlet, the heating plate is used to heat the gas, and the heated hot air is output from the air outlet to heat, keep warm or defrost the electronic equipment.

2. The defrosting and antifreezing device according to claim 1, characterized in that: It also includes a charging connector, which is arranged at the bottom of the slot and electrically connected to the controller, and is used to charge the plugged electronic device.

3. The defrosting and antifreezing device according to claim 1, characterized in that: A drainage channel connected to the slot is provided through the side wall of the plug-in body. The drainage channel is arranged to be inclined downward from the bottom of the slot to the outside of the slot so that water in the slot can be discharged along the drainage channel.

4. The defrosting and antifreezing device according to claim 3, characterized in that: The plug-in body includes an inner wall and an outer wall that are spaced apart, the air outlet is formed between the inner wall and the outer wall, the drainage channel is sealed between the inner wall and the outer wall, and the drainage channel gradually slopes downward from the inner wall to the outer wall.

5. The defrosting and antifreezing device according to claim 1, characterized in that: The base includes a bottom plate, which is detachably mounted on the bottom of the base to seal the accommodating cavity, and the air inlet is opened on the bottom plate.

6. The defrosting and antifreezing device according to claim 1, characterized in that: A boss protruding upward is provided at the bottom of the accommodating cavity, the fan is mounted on the boss, and the air inlet is opened corresponding to the boss.

7. The defrosting and antifreezing device according to claim 1, characterized in that: A connecting column protruding downward is provided on the top of the accommodating cavity, and the heating plate is suspended on the connecting column.

8. The defrosting and antifreezing device according to any one of claims 1 to 7, characterized in that: The controller is preset with a cold storage mode, a normal temperature mode and a first temperature threshold. The controller obtains the current ambient temperature detected by the temperature detector and compares it with the first temperature threshold to determine whether the electronic device is in the cold storage mode or the normal temperature mode; wherein the first temperature threshold is the critical temperature between the electronic device entering the cold chain environment and the external environment, the cold storage mode is the heating mode required for the electronic device to work normally for a long time in the cold chain environment, and the normal temperature mode is the heating mode for the electronic device to leave the cold chain environment and enter the external environment.

9. The defrosting and antifreezing device according to claim 8, characterized in that: In the cold storage mode, the controller controls the fan to run, and controls the heating plate to heat at maximum power consumption until the surface temperature of the electronic device is greater than a second temperature threshold, and then the controller adjusts the power consumption of the heating plate in real time to maintain the surface temperature of the electronic device within a preset range near the second temperature threshold; In the normal temperature mode, the controller controls the fan to run and controls the heating plate to heat at maximum power consumption until the surface temperature of the electronic device is greater than a third temperature threshold, and then the controller turns off the fan and the heating plate; wherein the second temperature threshold is the surface temperature of the electronic device that can be normally used in a cold chain environment, and the third temperature threshold is the normal surface temperature of the electronic device after leaving the cold chain environment and entering the external environment.

10. The defrosting and antifreezing device according to claim 9, characterized in that: The controller also pre-stores a first constant temperature corresponding to the temperature detector when the surface temperature of the electronic device is stable within a preset range near the second temperature threshold, and a second constant temperature corresponding to the temperature detector when the surface temperature of the electronic device reaches the third temperature threshold.

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