A temperature control system, method, and child safety seat

Abstract

The application discloses a temperature control system, a method and a child safety seat. The temperature control system comprises a first air duct, a second air duct, a temperature regulating unit, a temperature sensing unit and a control unit. The first air duct and the second air duct are respectively provided with a first ventilation unit and a second ventilation unit, and the first ventilation unit and the second ventilation unit are suitable for establishing air flow. The temperature regulating unit is suitable for forming a cold area in the first air duct and a hot area in the second air duct. The temperature sensing unit is used for obtaining temperature data of a child seating area. The control unit controls the temperature regulating unit, the first ventilation unit and the second ventilation unit to work according to the temperature data of the child seating area and a preset temperature range, forms circulating air flow between the child seating area and an external environment area, and brings cold air in the first air duct or hot air in the second air duct to the child seating area, so that the temperature of the child seating area is rapidly regulated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of child safety seats, in particular to a temperature control system and method of a child safety seat. BACKGROUND

[0002] A child safety seat is a device installed in a car for protecting children, which can reduce the harm to children when the car is in a collision accident. With the popularity of child safety seats, in addition to focusing on the safety performance of child safety seats, parents also have higher and higher requirements for the comfort of child safety seats, and thermal comfort is one of the important evaluation indexes of evaluating the comfort of child safety seats. Under normal circumstances, the thermal comfort of a child safety seat is mainly affected by the temperature of the car cabin, and the temperature of the car cabin is greatly affected by the outside environment temperature. For example, in hot summer, the temperature in the closed car cabin can reach more than 40℃, and in cold winter, the temperature in the car cabin is also very low. Although the car will be equipped with a car air conditioning system to adjust the temperature of the car cabin to a suitable range, on the one hand, the power of the car air conditioning system is limited, and it is difficult to adjust the temperature of the car cabin to a suitable range in a short time, on the other hand, after the child sits in the safety seat, the parts such as the thighs, buttocks and back in contact with the safety seat are not ventilated, resulting in slow temperature adjustment.

[0003] In order to solve the above problems and improve the thermal comfort of the child safety seat, most of the existing child safety seats will set a seat ventilation system composed of a fan at the seat cushion, backrest and the like to improve the thermal comfort of the child safety seat. However, this ventilation system can only establish a one-way air flow to the seating area, and the temperature of the air flow established by the fan is the same as the outside environment temperature. This ventilation system can only accelerate the air flow between the seating area and the outside environment, and accelerate the temperature balance between the seating area and the outside environment. Before the car air conditioning system adjusts the temperature of the car cabin to a comfortable temperature range, the existing seat ventilation system cannot effectively help the thermal comfort of the child safety seat. SUMMARY

[0004] One object of the present application is to provide a temperature control system and method of a child safety seat, which can cool or heat the seating area of the child seat according to the temperature of the surrounding environment, so as to quickly adjust the temperature of the seating area after the child sits in the child safety seat, and improve the comfort of the child safety seat.

[0005] Another object of the present application is to provide a child safety seat.

[0006] To achieve the above objects, the technical scheme adopted by the present application is as follows: a temperature control system suitable for a child safety seat, comprising: a first air duct, a second air duct, a temperature adjusting unit, a temperature sensing unit and a control unit.

[0007] The first air duct and the second air duct are both in communication with the child seating area and the external environment area, the first air duct is provided with a first ventilation unit, the first ventilation unit is adapted to establish an air flow from the external environment area to the child seating area or an air flow from the child seating area to the external environment area, the second air duct is provided with a second ventilation unit, the second ventilation unit is adapted to establish an air flow from the external environment area to the child seating area or an air flow from the child seating area to the external environment area, and the air flow established by the first ventilation unit is opposite to the air flow established by the second ventilation unit, so that the air flows generated by the first ventilation unit and the second ventilation unit can form a circulating air flow between the child seating area and the external environment area.

[0008] The temperature control system further comprises a temperature control unit, the temperature control unit is adapted to control the first ventilation unit and the second ventilation unit to work.

[0009] The control unit is adapted to obtain child seating area temperature data through the temperature sensing unit, and control the temperature control unit, the first ventilation unit and the second ventilation unit to work according to the child seating area temperature data, so as to form a circulating air flow of the first air duct-child seating area-second air duct-external environment area flow direction or a circulating air flow of the second air duct-child seating area-first air duct-external environment area flow direction, so as to bring the cold air in the first air duct or the hot air in the second air duct to the child seating area and control the temperature of the child seating area.

[0010] As a preferred, the first air duct is provided with a first temperature sensor, the first temperature sensor is adapted to obtain temperature data in the first air duct, the second air duct is provided with a second temperature sensor, the second temperature sensor is adapted to obtain temperature data in the second air duct, and the control unit is adapted to control the working state of the first ventilation unit and the second ventilation unit according to the temperature data in the first air duct or the temperature data in the second air duct.

[0011] As another preferred, the temperature control unit is a thermoelectric semiconductor refrigeration assembly.

[0012] Further preferably, the temperature control system further comprises a timing unit, the timing unit is adapted to obtain working time length data of the first ventilation unit and the second ventilation unit, and the control unit is adapted to control the working state of the first ventilation unit and the second ventilation unit according to the working time length data.

[0013] Another aspect of the present application provides a temperature control method, comprising the following steps:

[0014] Step S1, the temperature sensing unit acquires the child seating area temperature data;

[0015] Step S2, the control unit controls the operation state of the temperature regulating unit according to the child seating area temperature data;

[0016] Step S3, the control unit controls the operation state of the first and second ventilation units according to the temperature data of the first air duct and the child seating area temperature data, or the control unit controls the operation state of the first and second ventilation units according to the temperature data of the second air duct and the child seating area temperature data;

[0017] Step S4, the steps S1 to S3 are repeated to maintain the temperature of the child seating area in the first temperature range.

[0018] Further, step S2 specifically includes the following steps:

[0019] Step S21, when the child seating area temperature data is within the preset first temperature range, the control unit controls the temperature regulating unit to stop working;

[0020] Step S22, when the child seating area temperature data is higher than the maximum value of the preset first temperature range, the control unit controls the temperature regulating unit to start cooling, and the first temperature sensor acquires the temperature data in the first air duct;

[0021] Step S23, when the child seating area temperature data is lower than the minimum value of the preset first temperature range, the control unit controls the temperature regulating unit to start heating, and the second temperature sensor acquires the temperature data in the second air duct.

[0022] Further, step S3 specifically includes the following steps:

[0023] Step S31, when the child seating area temperature data is within the preset first temperature range, the control unit controls the first and second ventilation units to establish air flows in different flow directions, respectively, to form a circulating air flow between the child seating area and the external environment area;

[0024] Step S32, when the child seating area temperature data is higher than the maximum value of the preset first temperature range, and the temperature data in the first air duct reaches a cooling threshold, the control unit controls the first and second ventilation units to establish air flows in different flow directions, respectively, to form a circulating air flow in the flow direction of the first air duct-child seating area-second air duct-external environment area;

[0025] Step S33, when the child seating area temperature data is lower than the minimum value of the preset first temperature range, and the temperature data in the second air duct reaches the heating threshold, the control unit controls the first ventilation unit and the second ventilation unit to establish air flow in different flow directions respectively, forming a circulating air flow in the flow direction of the second air duct-child seating area-first air duct-external environment area.

[0026] Further, step S32 specifically comprises the following steps:

[0027] Step S321, the timing unit obtains the working time length data of the first ventilation unit and the second ventilation unit, and when the working time length data of the first ventilation unit and the second ventilation unit is greater than the preset working time length, the control unit controls the first ventilation unit and the second ventilation unit to stop working.

[0028] Further, step 33 also specifically comprises the following steps:

[0029] Step S331, the timing unit obtains the working time length data of the first ventilation unit and the second ventilation unit, and when the working time length data of the first ventilation unit and the second ventilation unit is greater than the preset working time length, the control unit controls the first ventilation unit and the second ventilation unit to stop working.

[0030] The application also provides a child safety seat, comprising the above-mentioned temperature control system, which is arranged on the backrest and / or the cushion of the child safety seat.

[0031] Compared with the prior art, the application has the following beneficial effects:

[0032] (1) In the temperature control system involved in the application, the control unit can control the first ventilation unit to establish air flow in the first air duct from the external environment area to the child seating area or from the child seating area to the external environment area, and the control unit can control the second ventilation unit to establish air flow in the second air duct opposite to the flow direction of the first air duct, thereby forming air flow circulation, improving air flow efficiency, accelerating air flow between the child seating area and the external environment area, accelerating temperature balance between the child seating area and the external environment area, and improving comfort when the child uses the child safety seat;

[0033] (2) The temperature control system relates to a temperature control system, wherein the temperature control unit comprises a refrigeration part and / or a heating part, the refrigeration part is arranged in the first air duct, the heating part is arranged in the second air duct, the refrigeration part is suitable for refrigerating the air in the first air duct, and the heating part is suitable for heating the air in the second air duct, and then the circulating air flow with different flow directions established by the first ventilation unit and the second ventilation unit can bring the cold air in the first air duct or the hot air in the second air duct to the child seating area, so as to realize rapid adjustment of the temperature of the child seating area, and the temperature control system can form a space with suitable temperature in the child seating area before the vehicle air conditioning system adjusts the temperature of the vehicle compartment to a suitable range, thereby further improving the comfort of children sitting on the child safety seat. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a schematic diagram of the temperature control system of the application.

[0035] Figure 2 It is one of the specific step diagrams of the temperature control method of the application.

[0036] Figure 3 It is the second specific step diagram of the temperature control method of the application.

[0037] Figure 4 It is the third specific step diagram of the temperature control method of the application.

[0038] Figure 5 It is the fourth specific step diagram of the temperature control method of the application.

[0039] Figure 6 It is the fifth specific step diagram of the temperature control method of the application.

[0040] In the figure: 100, control unit; 200, temperature sensing unit; 300, temperature control unit; 310, refrigeration part; 320, heating part; 400, first air duct; 410, first ventilation unit; 420, first temperature sensor; 500, second air duct; 510, second ventilation unit; 520, second temperature sensor; 600, timing unit. DETAILED DESCRIPTION

[0041] In the following, the application will be further described in conjunction with specific embodiments, and it should be noted that the following embodiments or technical features can be combined to form new embodiments without conflict.

[0042] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0043] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence.

[0044] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] The present application provides a temperature control system suitable for a child safety seat, comprising a first air duct 400, a second air duct 500, a temperature regulating unit 300, a temperature sensing unit 200 and a control unit 100.

[0046] Wherein, the first air duct 400 and the second air duct 500 are both connected to the child seating area and the external environment area, the first air duct 400 is provided with a first ventilation unit 410, and the second air duct 500 is provided with a second ventilation unit 510, the first ventilation unit 410 and the second ventilation unit 510 are respectively adapted to establish an air flow in the first air duct 400 and the second air duct 500 from the child seating area to the external environment area or from the external environment area to the child seating area, and the flow direction of the air flow established by the first ventilation unit 410 is opposite to the flow direction of the air flow established by the second ventilation unit 510, and then the air flows generated by the first ventilation unit 410 and the second ventilation unit 510 can form a circulating air flow in the child seating area and the external environment area in the flow direction of the first air duct 400-child seating area-second air duct 500-external environment area or in the flow direction of the second air duct 500-child seating area-first air duct 400-external environment area. The first ventilation unit 410 and the second ventilation unit 510 are preferably direct current cooling fans, which are powered by direct current, and only need to change the input current direction of the motor to change the forward and reverse rotation of the motor, so as to change the direction of the air flow.

[0047] The temperature regulating unit 300 comprises a refrigeration part 310 and / or a heating part 320, the refrigeration part 310 is arranged in the first air duct 400, the heating part 320 is arranged in the second air duct 500, the refrigeration part 310 is adapted to refrigerate the air in the first air duct 400, and the heating part 320 is adapted to heat the air in the second air duct 500. In some preferred embodiments, the temperature regulating unit 300 is a thermoelectric semiconductor refrigeration assembly, which is a cooling device composed of semiconductors. When the thermoelectric semiconductor refrigeration assembly is connected to a power supply, the heat at one end of the thermoelectric semiconductor refrigeration assembly is moved to the other end, so that the temperature at one end of the thermoelectric semiconductor refrigeration assembly is reduced to form the refrigeration part 310, and the temperature at the other end is increased to form the heating part 320. The refrigeration part 310 is arranged in the first air duct 400 to form a cold area, and the heating part 320 is arranged in the second air duct 500 to form a hot area. Thus, the circulating air flow formed by the operation of the first ventilation unit 410 and the second ventilation unit 510 can bring the cold air in the first air duct 400 to the child seating area, or bring the hot air in the second air duct 500 to the child seating area, or bring the hot air in the second air duct 500 to the external environment area, or bring the cold air in the first air duct 400 to the external environment area. The thermoelectric semiconductor refrigeration assembly has no sliding parts, and has the advantages of small size, high reliability, and no refrigerant pollution, and can be applied in some space-limited and high-reliability occasions.

[0048] Of course, in other embodiments, the temperature regulating unit 300 can be selected as a heating resistance wire, which is adapted to heat the air in the second air duct 500. At this time, the structure of the temperature regulating unit 300 is simpler, that is, the temperature regulating unit 300 only comprises the heating part 320. When the temperature of the child seating area is lower than the minimum value of the preset first temperature range, the control unit 100 controls the heating resistance wire to work to heat the air in the second air duct 500. When the temperature of the child seating area is within the preset first temperature range or higher than the maximum value of the preset first temperature range, the control unit 100 controls the heating resistance wire to stop working. In addition, the temperature regulating unit 300 can also be selected as a semiconductor refrigeration assembly, which is adapted to cool the air in the first air duct 400.

[0049] The temperature sensing unit 200 is configured to acquire the temperature data of the child seating area and send the temperature data to the control unit 100, and the control unit 100 receives and processes the temperature data of the child seating area. The control unit 100 controls the operation of the temperature adjusting unit 300, the first ventilation unit 410 and the second ventilation unit 510 according to the temperature data of the child seating area, to form a circulating air flow in the flow direction of the first air duct 400-child seating area-second air duct 500-external environment area or a circulating air flow in the flow direction of the second air duct 500-child seating area-first air duct 400-external environment area, so as to bring the cold air in the first air duct 400 or the hot air in the second air duct 500 to the child seating area, to cool or heat the child seating area, and to quickly adjust the temperature of the child seating area.

[0050] The temperature control system further comprises a first temperature sensor 420 arranged in the first air duct 400 and a second temperature sensor 520 arranged in the second air duct 500, the first temperature sensor 420 is configured to acquire the temperature data in the first air duct 400, and the second temperature sensor 520 is configured to acquire the temperature data in the second air duct 500, and the control unit 100 is adapted to control the working state of the first ventilation unit 410 and the second ventilation unit 510 according to the cold zone temperature data or the hot zone temperature data. Specifically, when the temperature data in the first air duct 400 reaches a preset threshold value, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to establish a circulating air flow in the flow direction of the first air duct 400-child seating area-second air duct 500-external environment area, and when the temperature data in the second air duct 500 reaches a preset threshold value, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to establish a circulating air flow in the flow direction of the second air duct 500-child seating area-first air duct 400-external environment area.

[0051] Further, the temperature control system further comprises a timing unit 600, the timing unit 600 is configured to acquire the working time length data of the first ventilation unit 410 and the second ventilation unit 510, and send the working time length data to the control unit 100, and the control unit 100 is adapted to control the working state of the first ventilation unit 410 and the second ventilation unit 510 according to the working time length data. Specifically, when the working time length data is greater than a preset working time length, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to stop working.

[0052] The specific working process of the above-mentioned temperature control system is as follows:

[0053] The temperature sensing unit 200 acquires the child seating area temperature data and sends it to the control unit 100, and the control unit 100 controls the temperature regulating unit 300, the first ventilation unit 410 and the second ventilation unit 510 according to the child seating area temperature data. Specifically, when the child seating area temperature data is within the preset first temperature range (18-24°C), the control unit 100 sends a natural wind circulation signal; when the child seating area temperature data is higher than the maximum value of the preset first temperature range, the control unit 100 sends a cold wind circulation signal; when the child seating area temperature data is lower than the minimum value of the preset first temperature range, the control unit 100 sends a hot wind circulation signal. The temperature regulating unit 300, the first ventilation unit 410 and the second ventilation unit 510 switch to different modes according to the different instructions sent by the control unit 100. It is worth mentioning that the first temperature range is not a fixed range value, and the user can adjust the specific value of the first temperature range according to the actual use demand. In this embodiment, 18-24°C is only used as an example for illustration.

[0054] Natural wind circulation mode: the temperature regulating unit 300 does not work, the first ventilation unit 410 establishes an air flow from the external environment area to the child seating area, and the second ventilation unit 510 establishes an air flow from the child seating area to the external environment area, and then the first ventilation unit 410 and the second ventilation unit 510 form a circulating air flow between the child seating area and the external environment area, accelerate the air flow between the child seating area and the external environment area, and accelerate the temperature balance between the child seating area and the external environment area. Of course, the direction of the air flow established by the first ventilation unit 410 and the second ventilation unit 510 in this mode can also be exchanged, that is, the first ventilation unit 410 establishes an air flow from the child seating area to the external environment area, and the second ventilation unit 510 establishes an air flow from the external environment area to the child seating area.

[0055] Cold air circulation mode: the temperature regulating unit 300 is started, a cold area is formed in the first air duct 400, a hot area is formed in the second air duct 500, the first temperature sensor 420 acquires the temperature data in the first air duct 400 and sends it to the control unit 100, the control unit 100 compares the temperature data in the first air duct 400 with the preset cooling threshold value, when the temperature data in the first air duct 400 reaches the preset cooling threshold value, the control unit 100 controls the first ventilation unit 410 to establish an air flow from the external environment area to the child seating area, the second ventilation unit 510 establishes an air flow from the child seating area to the external environment area, forming a circulating air flow in the flow direction of the first air duct 400-child seating area-second air duct 500-external environment area, so as to send the cold air in the first air duct 400 to the child seating area, and discharge the hot air in the child seating area to the external environment area, realizing the cooling of the child seating area. In addition, the first ventilation unit 410 and the second ventilation unit 510 start working at the same time, and the timing unit 600 starts timing, and sends the working time data of the first ventilation unit 410 and the second ventilation unit 510 to the control unit 100, and the control unit 100 controls the working state of the first ventilation unit 410 and the second ventilation unit 510 according to the working time data, when the working time is greater than the preset time, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to stop working, and when the temperature data in the first air duct 400 reaches the preset cooling threshold value again, the above-mentioned circulation is started again.

[0056] The hot air circulation mode: the temperature regulating unit 300 is started, a cold zone is formed in the first air duct 400, a hot zone is formed in the second air duct 500, the second temperature sensor 520 acquires the temperature data in the second air duct 500 and sends it to the control unit 100, the control unit 100 compares the temperature data in the second air duct 500 with the preset heating threshold value, when the temperature data in the second air duct 500 reaches the preset heating threshold value, the control unit 100 controls the first ventilation unit 410 to establish an air flow from the child seating area to the external environment area, the second ventilation unit 510 establishes an air flow from the external environment area to the child seating area, forming a circulating air flow in the flow direction of the second air duct 500-child seating area-first air duct 400-external environment area, so as to send the hot air in the second air duct 500 to the child seating area, and discharge the cold air in the child seating area to the external environment area, realizing the heating of the child seating area. In addition, the first ventilation unit 410 and the second ventilation unit 510 start working at the same time, and the timing unit 600 starts timing, and the working time data of the first ventilation unit 410 and the second ventilation unit 510 is sent to the control unit 100, and the control unit 100 controls the working state of the first ventilation unit 410 and the second ventilation unit 510 according to the working time data, when the working time is greater than the preset time, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to stop working, and when the temperature data in the second air duct 500 reaches the preset heating threshold value again, the above-mentioned circulation is started again.

[0057] It is worth noting that when the temperature regulating unit 300 is a heating resistance wire, the temperature control system only has a natural air circulation mode and a hot air circulation mode, and when the temperature regulating unit 300 is a semiconductor refrigeration assembly, the temperature control system only has a self-heating air circulation mode and a cold air circulation mode.

[0058] The temperature control system provided by the application can start the natural air circulation mode when the ambient temperature is in a relatively suitable range, the natural air circulation mode can accelerate the air circulation between the child seating area and the external environment area, accelerate the temperature balance of the two areas, eliminate the discomfort caused by the sweating of the child's back and buttocks in contact with the child safety seat, and improve the circulation efficiency. When the ambient temperature is in a overheated or overcooled range, the temperature control system starts the cooling or heating mode, which can form a temperature suitable space in the child seating area before the vehicle air conditioning system adjusts the temperature of the vehicle cabin to a suitable range, improve the comfort of the child sitting in the child safety seat, and then the temperature control system switches to the natural air circulation mode to ensure the air circulation between the child seating area and the external environment area.

[0059] Another aspect of the present application is to provide a temperature control method applied to a child safety seat provided with the above-mentioned temperature control system, comprising the following steps:

[0060] Step S1, the temperature sensing unit 200 acquires the child seating area temperature data;

[0061] Step S2, the control unit 100 controls the working state of the temperature regulating unit 300 according to the child seating area temperature data;

[0062] Step S3, the control unit 100 controls the working state of the first ventilation unit 410 and the second ventilation unit 510 according to the temperature data of the first air duct 400 and the child seating area temperature data, or the control unit 100 controls the working state of the first ventilation unit 410 and the second ventilation unit 510 according to the temperature data of the second air duct 500 and the child seating area temperature data;

[0063] Step S4, the steps S1 to S3 are cycled to maintain the temperature of the child seating area in the first temperature range.

[0064] The first temperature range is the comfortable temperature of human body, which is approximately 18-24℃, and of course the user can also set the first temperature range according to the actual use scene.

[0065] Further, the step S2 comprises the following specific steps: step S21, step S22 and step S23.

[0066] Step S21, when the child seating area temperature data is within the preset first temperature range, the control unit 100 controls the temperature regulating unit 300 to stop working;

[0067] Step S22, when the child seating area temperature data is higher than the maximum value of the preset first temperature range, the control unit 100 controls the temperature regulating unit 300 to start cooling, and the first temperature sensor 420 acquires the temperature data in the first air duct 400;

[0068] Step S23, when the child seating area temperature data is lower than the minimum value of the preset first temperature range, the control unit 100 controls the temperature regulating unit 300 to start heating, and the second temperature sensor 520 acquires the temperature data in the second air duct 500.

[0069] Specifically, when the temperature regulating unit 300 is a heating resistance wire, that is, the temperature regulating unit 300 only comprises the heating part 320, the step S2 only comprises the step S21 and the step S23; when the temperature regulating unit 300 is a semiconductor refrigeration assembly, that is, the temperature regulating unit 300 only comprises the cooling part 310, the step S2 only comprises the step S21 and the step S22.

[0070] The first temperature range is the same as the aforementioned first temperature range, and is approximately 18-24°C. Of course, the temperature range of 18-24°C is merely illustrative, and the specific range of the first temperature range is not limited, and the user can determine the range of the first temperature range according to actual use requirements.

[0071] Further, the step S3 comprises the following specific steps: a step S31, a step S32 and a step S33.

[0072] The step S31 comprises: when the child seating area temperature data is within the preset first temperature range, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to respectively establish air flows in different flow directions, to form a circulating air flow between the child seating area and the external environment area.

[0073] The step S32 comprises: when the child seating area temperature data is higher than the maximum value of the preset first temperature range, and the temperature data in the first air duct 400 reaches a refrigeration threshold value, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to respectively establish air flows in different flow directions, to form a circulating air flow in the flow direction of the first air duct 400-child seating area-second air duct 500-external environment area.

[0074] The step S33 comprises: when the child seating area temperature data is lower than the minimum value of the preset first temperature range, and the temperature data in the second air duct 500 reaches a heating threshold value, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to respectively establish air flows in different flow directions, to form a circulating air flow in the flow direction of the second air duct 500-child seating area-first air duct 400-external environment area.

[0075] When the temperature adjusting unit 300 is a heating resistance wire, that is, the temperature adjusting unit 300 only comprises the heating part 320, the step S2 only comprises the step S21 and the step S23; when the temperature adjusting unit 300 is a semiconductor refrigeration assembly, that is, the temperature adjusting unit 300 only comprises the refrigeration part 310, the step S2 only comprises the step S21 and the step S22.

[0076] Specifically, when the temperature adjusting unit 300 is a heating resistance wire, that is, the temperature adjusting unit 300 only comprises the heating part 320, the step S3 only comprises the step S31 and the step S33; when the temperature adjusting unit 300 is a semiconductor refrigeration assembly, that is, the temperature adjusting unit 300 only comprises the refrigeration part 310, the step S3 only comprises the step S31 and the step S32.

[0077] Further, the step S32 further comprises the following step: a step S321.

[0078] Step S321, the timing unit 600 acquires the working time length data of the first ventilation unit 410 and the second ventilation unit 510, and when the working time length data of the first ventilation unit 410 and the second ventilation unit 510 is greater than the preset working time length, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to stop working.

[0079] Further, step S33 further comprises the following step: step S331

[0080] Step S331, the timing unit 600 acquires the working time length data of the first ventilation unit 410 and the second ventilation unit 510, and when the working time length data of the first ventilation unit 410 and the second ventilation unit 510 is greater than the preset working time length, the control unit 100 controls the first ventilation unit 410 and the second ventilation unit 510 to stop working.

[0081] The application also provides a child safety seat comprising the temperature control system, and the temperature control system is arranged on the backrest and / or the cushion of the child safety seat.

[0082] The above describes the basic principles, main features and advantages of the application. It should be understood by those skilled in the art that the application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the application. Without departing from the spirit and scope of the application, various changes and improvements can be made to the application, and these changes and improvements all fall within the scope of the claimed application. The scope of protection claimed by the application is defined by the appended claims and their equivalents.

Claims

1. A temperature control system adapted for use with a child safety seat, the system comprising: The application relates to a temperature control system for a child seat, comprising: a first air duct, a second air duct, a temperature control unit, a temperature sensing unit and a control unit; the first air duct and the second air duct are connected to a child seating area and an external environment area, the first air duct is provided with a first ventilation unit, the first ventilation unit is adapted to establish an air flow from the external environment area to the child seating area or an air flow from the child seating area to the external environment area, the second air duct is provided with a second ventilation unit, the second ventilation unit is adapted to establish an air flow from the external environment area to the child seating area or an air flow from the child seating area to the external environment area, and the air flow established by the first ventilation unit is opposite to the air flow established by the second ventilation unit, so that the air flows generated by the first ventilation unit and the second ventilation unit can form a circulating air flow between the child seating area and the external environment area; the temperature control unit comprises a refrigeration part and / or a heating part, the refrigeration part is arranged in the first air duct, and the heating part is arranged in the second air duct; the first air duct is provided with a first temperature sensor, the control unit is adapted to acquire temperature data of the first air duct through the first temperature sensor, the second air duct is provided with a second temperature sensor, and the control unit is adapted to acquire temperature data of the second air duct through the second temperature sensor; the control unit is adapted to acquire temperature data of the child seating area through the temperature sensing unit; the control unit is adapted to control the working state of the temperature control unit according to the temperature data of the child seating area, and the control unit is adapted to control the working state of the first ventilation unit and the second ventilation unit according to the temperature data of the child seating area and the temperature data in the first air duct or the temperature data in the second air duct; wherein the control unit is configured as the following control logic: when the temperature data of the child seating area is higher than the maximum value of a preset first temperature range, the control unit controls the refrigeration part of the temperature control unit to work, and acquires the temperature data of the first air duct, when the temperature data of the first air duct reaches a refrigeration threshold value, the control unit controls the first ventilation unit and the second ventilation unit to establish air flows with different flow directions, forms a circulating air flow with the flow direction of first air duct-child seating area-second air duct-external environment area, and brings cold air in the first air duct to the child seating area; when the temperature data of the child seating area is lower than the minimum value of the preset first temperature range, the control unit controls the heating part of the temperature control unit to work, and acquires the temperature data of the second air duct, when the temperature data of the second air duct reaches a heating threshold value, the control unit controls the first ventilation unit and the second ventilation unit to establish air flows with different flow directions, forms a circulating air flow with the flow direction of second air duct-child seating area-first air duct-external environment area, and brings hot air in the second air duct to the child seating area.

2. The temperature control system of claim 1, wherein, The temperature control unit is a thermoelectric semiconductor refrigeration assembly.

3. The temperature control system of claim 1 or 2, wherein, The temperature control system further comprises a timing unit adapted to acquire working time length data of the first ventilation unit and the second ventilation unit, and the control unit is adapted to control working states of the first ventilation unit and the second ventilation unit according to the working time length data.

4. A temperature control method characterized by, The method comprises the following steps: Step S1, a temperature sensing unit acquires temperature data of a child seating area; Step S2, a control unit controls a working state of a temperature regulating unit according to the temperature data of the child seating area; Step S2 specifically comprises the following steps: Step S21, when the temperature data of the child seating area is within a preset first temperature range, the control unit controls the temperature regulating unit to stop working; Step S22, when the temperature data of the child seating area is higher than a maximum value of the preset first temperature range, the control unit controls the temperature regulating unit to start cooling, and a first temperature sensor acquires temperature data in a first air duct; Step S23, when the temperature data of the child seating area is lower than a minimum value of the preset first temperature range, the control unit controls the temperature regulating unit to start heating, and a second temperature sensor acquires temperature data in a second air duct; Step S3, the control unit controls working states of the first ventilation unit and the second ventilation unit according to the temperature data of the first air duct and the temperature data of the child seating area, or controls working states of the first ventilation unit and the second ventilation unit according to the temperature data of the second air duct and the temperature data of the child seating area; Step S3 specifically comprises the following steps: Step S31, when the temperature data of the child seating area is within the preset first temperature range, the control unit controls the first ventilation unit and the second ventilation unit to respectively establish air flows in different flow directions, to form a circulating air flow between the child seating area and an external environment area; Step S32, when the temperature data of the child seating area is higher than the maximum value of the preset first temperature range, and the temperature data in the first air duct reaches a cooling threshold value, the control unit controls the first ventilation unit and the second ventilation unit to respectively establish air flows in different flow directions, to form a circulating air flow in the flow direction of the first air duct-the child seating area-the second air duct-the external environment area; Step S33, when the temperature data of the child seating area is lower than the minimum value of the preset first temperature range, and the temperature data in the second air duct reaches a heating threshold value, the control unit controls the first ventilation unit and the second ventilation unit to respectively establish air flows in different flow directions, to form a circulating air flow in the flow direction of the second air duct-the child seating area-the first air duct-the external environment area; Step S4, steps S1 to S3 are cycled to maintain the temperature of the child seating area in the first temperature range.

5. The temperature control method of claim 4, wherein, Step S32 further specifically comprises the following steps: Step S321, a timing unit acquires working time length data of the first ventilation unit and the second ventilation unit, and when the working time length data of the first ventilation unit and the second ventilation unit is greater than a preset working time length, the control unit controls the first ventilation unit and the second ventilation unit to stop working.

6. The temperature control method of claim 4, wherein, Step S33 further specifically comprises the following steps: In step S331, the timing unit acquires the working time length data of the first ventilation unit and the second ventilation unit, and when the working time length data of the first ventilation unit and the second ventilation unit is greater than the preset working time length, the control unit controls the first ventilation unit and the second ventilation unit to stop working.

7. A child safety seat, characterized in that The temperature control system as claimed in any one of claims 1-3 is arranged on a backrest and / or a seat cushion of the child safety seat.

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