An anhydrous humidifying device and a method for controlling air temperature

Abstract

The present application discloses a non-aqueous humidifying device and a method for controlling air temperature. The non-aqueous humidifying device includes: a heating module, a humidifying module, a temperature detection module, and a control module; the heating module includes a positive temperature coefficient (PTC) heating element; the PTC heating element is used to heat the air entering the non-aqueous humidifying device when it is turned on; the humidifying module is used to humidify the heated air; the temperature detection module is used to detect the temperature value of the humidified air; the control module is used to adjust the power of the turned-on PTC heating element according to the detected temperature value. The present application can effectively control the temperature of the humidified air.

Description

Field of Technology

[0001] This application relates to the field of air conditioning equipment, and particularly to a waterless humidifying device and a method for controlling air temperature. Background Art

[0002] Currently, the heating module of waterless humidifying devices mainly uses heating wires to heat air. Since the temperature of the heating wires is relatively high, there is a potential fire hazard; in addition, it is not easy to control the temperature of the heated air when using heating wires for humidification. Summary of the Invention

[0003] Embodiments of this application provide a waterless humidifying device and a method for controlling air temperature, which can effectively control the temperature of the humidified air.

[0004] The solution provided by the embodiments of this application is as follows: A waterless humidifying device, the device includes: a heating module, a humidifying module, a temperature detection module, and a control module; the heating module includes a thermistor PTC heating element;

[0005] The PTC heating element is used to heat the air entering the waterless humidifying device when it is turned on;

[0006] The humidifying module is used to humidify the heated air;

[0007] The temperature detection module is used to detect the temperature value of the humidified air;

[0008] The control module is used to adjust the power of the turned-on PTC heating element according to the detected temperature value.

[0009] In an exemplary embodiment, the PTC heating element includes a plurality of PTC heating element groups with different powers;

[0010] Adjusting the power of the turned-on PTC heating element includes adjusting the number of turned-on PTC heating element groups and / or changing the turned-on PTC heating element groups.

[0011] In an exemplary embodiment, the waterless humidifying device further includes a plurality of relays, and the relays correspond to the PTC heating element groups one by one;

[0012] The control module controls the turning on or off of different PTC heating element groups through different relays.

[0013] This application also provides a method for controlling air temperature, which is applied to the waterless humidifying device as described above, and includes:

[0014] Real-time detecting the temperature of the humidified air;

[0015] Calculating the temperature difference between the temperature of the humidified air and a preset target temperature;

[0016] Adjust the power of the activated PTC heating element of the thermistor according to the temperature difference and a preset temperature adjustment rule.

[0017] In an exemplary embodiment, the anhydrous humidifying device includes: a humidifier or an air conditioner.

[0018] In an exemplary embodiment, the adjusting the power of the activated PTC heating element according to the temperature difference and a preset temperature adjustment rule includes:

[0019] Determine that the absolute value of the temperature difference is not within the preset range, and keep the power of the currently activated PTC heating element unchanged;

[0020] Determine that the absolute value of the temperature difference is within the preset range. If the temperature difference is less than or equal to 0, increase the power of the activated PTC heating element; if the temperature difference is greater than 0, decrease the power of the activated PTC heating element.

[0021] In an exemplary embodiment, the humidifying module includes: a humidifying fan;

[0022] After adjusting the power of the activated PTC heating element according to the temperature difference and a preset temperature adjustment rule, it further includes:

[0023] Determine that the power of the PTC heating element has been adjusted to the maximum, and decrease the rotation speed of the humidifying fan;

[0024] Determine that the power of the PTC heating element has been adjusted to the minimum, and increase the rotation speed of the humidifying fan.

[0025] In an exemplary embodiment, the PTC heating element includes a plurality of PTC heating element groups with sequentially decreasing or increasing powers;

[0026] The increasing the power of the activated PTC heating element includes: activating a greater number of PTC heating element groups and / or activating PTC heating element groups with greater powers;

[0027] The decreasing the power of the activated PTC heating element includes: turning off one or more activated PTC heating element groups and / or replacing the activated PTC heating element groups with PTC heating element groups with smaller powers.

[0028] In an exemplary embodiment, among the plurality of PTC heating element groups, except for the two PTC heating element groups with the smallest powers, the power of any other PTC heating element group is greater than the sum of the powers of the other PTC heating element groups with powers lower than this PTC heating element group.

[0029] In an exemplary embodiment, the PTC heating element includes n PTC heating element groups, where n is a positive integer; the n PTC heating element groups have multiple opening combination modes with different powers, and the multiple opening combination modes are sorted in ascending order of power to obtain a control sequence;

[0030] Keeping the power of the currently turned-on PTC heating element unchanged includes: keeping the current opening combination mode of the PTC heating element group unchanged;

[0031] Increasing the power of the turned-on PTC heating element includes: changing the current opening combination mode to the next opening combination mode in the control sequence, and adjusting the turned-on PTC heating element groups according to the changed opening combination mode;

[0032] Decreasing the power of the turned-on PTC heating element includes: changing the current opening combination mode to the previous opening combination mode in the control sequence, and adjusting the turned-on PTC heating element groups according to the changed opening combination mode.

[0033] In an embodiment of the present application, a non-water humidifying device may include: a heating module, a humidifying module, a temperature detection module, and a control module; the heating module includes a thermistor PTC heating element; the PTC heating element is used to heat the air entering the non-water humidifying device when turned on; the humidifying module is used to humidify the heated air; the temperature detection module is used to detect the temperature value of the humidified air; the control module is used to adjust the power of the turned-on PTC heating element according to the detected temperature value. Using the PTC heating element to heat the air can effectively control the temperature of the humidified air.

[0034] Other aspects can be understood after reading and understanding the drawings and the detailed description. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0036] Figure 1 Schematic diagram of the non-water humidifying device in Embodiment 1 of the present application;

[0037] Figure 2 Schematic diagram of the humidifying module device in an example of Embodiment 1 of the present application;

[0038] Figure 3Schematic diagram of the control module device in an example of Embodiment 1 of the present application;

[0039] Figure 4 Schematic flow chart of humidifying air by the anhydrous humidifying device in another example of the example of Embodiment 1 of the present application;

[0040] Figure 5 Method flow chart for controlling the air temperature in Embodiment 2 of the present application;

[0041] Figure 6 Method flow chart for controlling the air temperature in Embodiment 3 of the present application.

[0042] Explanation of the reference numerals in the drawings:

[0043] Label Name Label Name 1 Dry Humidification Device 13 Temperature Detection Module 11 Heating Module 14 Control Module 12 Humidification Module 121 Desiccant Rotor 122 Desiccant Material 123 Humidification Fan

[0044] The realization of the purpose of the present application, functional characteristics and advantages will be further described in conjunction with the embodiments with reference to the drawings. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0046] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, in the present application, descriptions such as "first" and "second" are only used to distinguish things or behaviors with the same name, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In this application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In addition, the technical solutions between various embodiments of this application can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0050] Embodiment 1

[0051] This embodiment provides a waterless humidifying device. As Figure 1 shown, the waterless humidifying device includes: a heating module 11, a humidifying module 12, a temperature detection module 13, and a control module 14; the heating module 11 includes a PTC heating element.

[0052] The heating module 11 includes a PTC heating element for heating the air entering the waterless humidifying device 1;

[0053] The humidifying module 12 is used to humidify the air heated by the heating module 11;

[0054] The temperature detection module 13 is used to detect the temperature value of the air humidified by the humidifying module 12;

[0055] The control module 14 is used to adjust the power of the turned-on PTC heating element according to the detected temperature value.

[0056] In this embodiment, the heating module 11 can use a thermistor PTC heating element to heat the air.

[0057] In this embodiment, the humidifying module 12 is a module for humidifying the air. As Figure 2 shown, the humidifying module 12 can include a moisture absorption runner 121, a moisture absorption material 122, and a humidifying fan 123. The air can be humidified through the mutual cooperation of the moisture absorption runner, the moisture absorption material, and the humidifying fan. The moisture absorption runner 121 is used to desorb the moisture in the moisture absorption material 122 into the heated air; the humidifying fan 123 is used to output the air with increased moisture.

[0058] In this embodiment, the temperature detection module 13 can be disposed on the water vapor drainage channel in the humidifying fan 123; the temperature detection module 13 can detect the air temperature value by using a temperature sensor, and the air is the air after humidification treatment.

[0059] In an exemplary embodiment, the PTC heating element is a positive temperature coefficient PTC heating element, and the PTC heating element, also known as the PTC heating body, is composed of a PTC heating element ceramic heating element and an aluminum tube.

[0060] In this embodiment, the control module 14 can adjust the power of the activated PTC heating element according to the detected temperature value of the humidified air and the preset or user-selected temperature according to the adjustment rule.

[0061] In an exemplary embodiment, the PTC heating element can be multiple PTC heating element groups with different powers; for example: the PTC heating element is 3 PTC heating element groups with different powers, namely PTC heating element 1, PTC heating element 2, and PTC heating element 3; multiple PTC heating element groups with different powers can be multiple PTC heating element groups with gradually decreasing powers or multiple PTC heating element groups with gradually increasing powers, that is, the power of PTC heating element 1 > the power of PTC heating element 2 > the power of PTC heating element 3, or the power of PTC heating element 3 > the power of PTC heating element 2 > the power of PTC heating element 1. By turning on and off the above multiple PTC heating element groups with different powers, various power combinations can be achieved. For example: 3 PTC heating element groups with different powers can achieve 3 2 (i.e., 8) power combinations, and the power combinations include: all 3 PTC heating element groups are turned off, only PTC heating element 1 is turned on, only PTC heating element 2 is turned on, only PTC heating element 3 is turned on, PTC heating element 1 and PTC heating element 2 are turned on, PTC heating element 2 and PTC heating element 3 are turned on, and all PTC heating element groups are turned on; among them, each power combination corresponds to a different PTC heating element activation situation, and each PTC heating element activation situation can be used as an activation combination method. By analogy, n PTC heating element groups with different powers can achieve n 2 power combinations.

[0062] In an exemplary embodiment, the control module 14 can adjust the power of the PTC heating element by adjusting the number of activated PTC heating element groups and / or by changing the activated PTC heating element groups. For example, in the above example, the PTC heating element includes three PTC heating element groups with different powers, namely PTC heating element 1, PTC heating element 2, and PTC heating element 3. Assuming that currently PTC heating element 1 and PTC heating element 2 are activated, adjusting the number of activated PTC heating element groups may mean activating more PTC heating element groups, that is, activating PTC heating element 3, or deactivating some PTC heating element groups. For example, turning off PTC heating element 1 or PTC heating element 2, or turning off both PTC heating element 1 and PTC heating element 2 simultaneously. Changing the activated PTC heating element groups may mean turning off PTC heating element 1 and / or PTC heating element 2 and replacing them with activating PTC heating element 3.

[0063] In an exemplary embodiment, as Figure 3 shown, the anhydrous humidifying device 1 further includes a plurality of relays. The number of relays is the same as the number of PTC heating element groups, and there is a one-to-one correspondence between the plurality of relays and the plurality of PTC heating element groups. The control module 14 can control the activation and deactivation of the corresponding PTC heating element groups through the relays. For example: Relay 1 corresponds to the PTC1 heating element group, and Relay 1 controls the activation and deactivation of the PTC1 heating element group; Relay 2 corresponds to the PTC2 heating element group, and Relay 2 controls the activation and deactivation of the PTC2 heating element group... Relay n corresponds to the PTCn heating element group, and Relay n controls the activation and deactivation of the PTCn heating element group.

[0064] In this embodiment, the anhydrous humidifying device can be installed on the top of the outdoor unit. As Figure 4 shown, the anhydrous humidifying device includes a moisture absorption area, a desorption area; it also includes a moisture absorption fan, a moisture absorption rotor, a humidifying fan, and a heating module. The air treatment process of the moisture absorption side in the anhydrous humidifying device is as follows: Outdoor air enters the moisture absorption area through a switching valve, and outdoor air also enters the moisture absorption area through a heat exchanger; after passing through the moisture absorption area, the air is discharged after being absorbed by the moisture absorption material by the moisture absorption fan. On the humidifying side, outdoor air on the humidifying side enters from the humidifying air duct, is heated by the heating module 11, and then enters the desorption area of the moisture absorption rotor. The moisture in the moisture absorption material is desorbed into the air, and the humidified air is inhaled by the humidifying fan and sent to the room for humidification to obtain humidified air. The heating module 11 can use a thermistor PTC heating element to heat the air.

[0065] In the embodiment of the present application, the PTC heating element is used to heat the air, solving the problem that the heating module of the anhydrous humidifying device in the current air conditioner has a potential fire hazard due to the high temperature of the heating wire.

[0066] Embodiment 2

[0067] To achieve the above object, an embodiment of the present application provides a method for controlling air temperature, as follows Figure 5 shown, including steps S510 - S530:

[0068] S510. Real - time detect the temperature of the humidified air;

[0069] S520. Calculate the temperature difference between the temperature of the humidified air and a preset target temperature;

[0070] S530. According to the temperature difference and a preset temperature adjustment rule, adjust the power of the turned - on thermistor PTC heating element.

[0071] In this embodiment, the method for controlling air temperature is applied to the water - free humidification device in Embodiment 1. In step S510, a temperature sensor can be used to real - time detect the temperature of the air humidified by the water - free humidification device. The water - free humidification device can include a humidifier or the water - free humidification device can include an air conditioner.

[0072] In this embodiment, in step S520, calculate the temperature difference between the detected temperature of the humidified air and the target temperature preset according to specific requirements; the preset target temperature can be set by the user according to specific requirements according to the actual situation. For example, the target temperature can be 28°C.

[0073] In this embodiment, in step S530, according to the calculated temperature difference and a preset temperature adjustment rule, the power of the PTC heating element can be adjusted. The specific temperature adjustment rule can be established in advance according to the power of each PTC heating element and the power corresponding to the PTC heating element turn - on combination mode.

[0074] In an exemplary embodiment, the implementation method of adjusting the power of the PTC heating element according to the calculated temperature difference and the temperature adjustment rule includes: In the first case, determine the difference between the current air temperature and the preset temperature. If the absolute value of this difference is not within the preset range, keep the power of the current PTC heating element unchanged. In the second case, first determine that the absolute value of the temperature difference is within the preset range, and correspondingly increase or decrease the power of the PTC heating element according to the different temperature differences. When the temperature difference is less than or equal to 0, the power of the turned - on PTC heating element can be increased to lower the temperature of the humidified air. When the temperature difference is greater than 0, the power of the turned - on PTC heating element can be decreased to increase the temperature of the humidified air.

[0075] In an exemplary embodiment, the PTC heating element includes multiple PTC heating element groups with sequentially decreasing powers or the PTC heating element includes PTC heating element groups with sequentially increasing powers; for example: P PTC 1 >P PTC 2 >……>P PTC n or PPTCn >P PTC n-1 >……>P PTC 1 。P PTC 1 、P PTC 2 ……P PTC n respectively represent the power of the corresponding PTC heating elements. In this embodiment, when it is determined that the absolute value of the difference between the current air temperature and the preset temperature is within the preset range and the temperature difference is less than or equal to 0, more PTC heating element groups can be turned on and / or PTC heating element groups with a greater power can be turned on to increase the power of the turned-on PTC heating elements; taking the PTC heating elements including multiple PTC heating element groups with gradually decreasing power as an example, P PTC 1 >P PTC 2 >P PTC 2 , if PTC2 and PTC3 are currently turned on, and it is determined that the absolute value of the difference between the current air temperature and the preset temperature is within the preset range and the temperature difference is less than or equal to 0, more PTC heating element groups can be turned on, such as turning on PTC1; or PTC heating element groups with a greater power can be turned on, such as turning off PTC2 or PTC3 and turning on PTC1. In this embodiment, when it is determined that the absolute value of the difference between the current air temperature and the preset temperature is within the preset range and the temperature difference is greater than 0, one or more of the currently turned-on PTC heating element groups can be turned off, or the PTC heating element groups with a greater power that are currently turned on can be replaced with PTC heating element groups with a smaller power to reduce the power of the turned-on PTC heating elements. Taking the PTC heating elements including multiple PTC heating element groups with gradually decreasing power as an example, P PTC 1 >P PTC 2 >P PTC 2 , if PTC1 heating element and PTC2 heating element are currently turned on, and it is determined that the absolute value of the difference between the current air temperature and the preset temperature is within the preset range and the temperature difference is less than or equal to 0, one of the currently turned-on PTC heating element groups can be turned off, for example: turning off the PTC2 heating element. If it is determined that the absolute value of the difference between the current air temperature and the preset temperature is within the preset range and the temperature difference is less than or equal to 0, multiple of the currently turned-on PTC heating element groups can be turned off, for example: turning off the PTC1 heating element and the PTC2 heating element. If it is determined that the absolute value of the difference between the current air temperature and the preset temperature is within the preset range and the temperature difference is less than or equal to 0, the PTC heating element groups with a greater power that are currently turned on can be replaced with PTC heating element groups with a smaller power, for example: replacing the PTC1 heating element or the PTC2 heating element with the PTC3 heating element group with a smaller power.

[0076] In an exemplary embodiment, among the multiple PTC heating element groups, two PTC heating element groups with the lowest power are removed, and the power of any other PTC heating element group is greater than the sum of the powers of other PTC heating element groups with lower power than this PTC heating element group. For example: P PTC 1加热体 >P PTC2加热体 +P PTC3加热体 +……+P PTCn加热体 ,P PTC2加热体 >P PTC3加热体 +……+P PTCn加热体 ,……。

[0077] In an exemplary embodiment, the PTC heating element includes n PTC heating element groups, where n is a positive integer; the n PTC heating element groups can be PTC heating elements with different powers, forming multiple opening combination modes, and the multiple opening combination modes can be sorted in ascending order of power to obtain a control sequence; among them, the control sequence includes 2 n elements, and each element corresponds one-to-one to 2 n opening combination modes of the n PTC heating element groups; each element in these 2 n opening combination modes contains n digits, and each digit has a one-to-one correspondence with the n PTC heating element groups; each digit has two values, representing the value of turning on the corresponding PTC heating element and the value of turning off the corresponding PTC heating element respectively. For example: 0 and 1; 0 and 1 represent turning on the corresponding PTC heating element and turning off the corresponding PTC heating element respectively. For example: 3 groups of PTC heating element groups with different powers can be divided into 2 3 opening combination modes, as shown in the following control sequence:

[0078] Control[k]={000,001,010,011,100,101,110,111}

[0079] The meaning of each element in the above control sequence is that the high bit represents the PTC 1 heating element, the low bit represents the PTC 3 heating element, and the second bit represents the PTC 2 heating element. Each bit has two values: 0 and 1. Among them, 1 represents that the relay is closed and the PTC heating element corresponding to this bit works, and 0 represents that the relay is open and the PTC heating element corresponding to this bit does not work. For example, 111 represents that the PTC 1 heating element, the PTC 2 heating element, and the PTC 3 heating element work simultaneously, 000 represents that the PTC 1 heating element, the PTC 2 heating element, and the PTC 3 heating element do not work simultaneously, and 001 represents that the PTC 1 heating element and the PTC 2 heating element do not work, and the PTC 3 heating element works. Among them, the corresponding element in the control sequence can be obtained according to the value of K. For example, the value of K can be converted into the element in the control sequence by means of numerical conversion. For example: convert K from decimal to binary, and the obtained binary number is the element in the control sequence. For example, when K is 1, 001 is obtained. When n = 3, the value range of K is 0-7; it is also possible to use K as the serial number to obtain the element at the corresponding position in the control sequence. For example, when K is 5, the 5th element 100 in the control sequence is obtained. When n = 3, the value range of K is 1-8.

[0080] In an exemplary embodiment, the implementation method of keeping the power of the current PTC heating element unchanged is: keeping the current on combination mode of the PTC heating element group unchanged. The implementation method of increasing the power of the PTC heating element is: changing the current on combination mode to the next on combination mode in the control sequence, and turning on the PTC heating element group according to the changed on combination mode; the implementation method of decreasing the power of the PTC heating element is: changing the current on combination mode to the previous on combination mode in the current on combination in the control sequence, and turning on the PTC heating element group according to the changed on combination mode. In this embodiment, the power of the combination modes in the control sequence is arranged from small to large. The PTC heating element includes multiple PTC heating element groups with different powers, 2 nA kind of switch combination is represented by different switch combination control values Control[K]; determine that the temperature difference is greater than or equal to 0, and judge whether the temperature difference is within a preset temperature difference range; determine that the temperature difference is within the preset temperature difference range, and keep the K value unchanged; determine that the temperature difference is not within the preset temperature difference range, and judge whether the K value in the current control value Control[K] is equal to the preset maximum value; determine that the K value is not equal to the maximum value, then adjust K = K + 1, for example: adjust from 000 to 001; determine that the K value is equal to the maximum value, then reduce the rotation speed of the humidifying fan. Determine that the temperature difference is less than 0, and judge whether the temperature difference is within a preset temperature difference range; determine that the temperature difference is within the preset temperature difference range, then do not adjust the K value; determine that the temperature difference is not within the preset temperature difference range, and judge whether the current K value is equal to the preset minimum value; determine that the K value is not equal to the minimum value, then adjust K = K - 1, for example: adjust from 111 to 110; determine that the K value is equal to the minimum value, then increase the rotation speed of the humidifying fan.

[0081] In an exemplary embodiment, the humidifying module of the anhydrous humidifying device includes: a hygroscopic wheel, a hygroscopic material, and a humidifying fan; wherein, the hygroscopic wheel is used to desorb the moisture in the hygroscopic material into the heated air; the humidifying fan outputs the humidified air, that is, the air with increased moisture.

[0082] In an exemplary embodiment, according to the calculated temperature difference and adjustment rules, the implementation method of adjusting the power of the PTC heating element further includes: determining that the currently turned-on power of the PTC heating element is the maximum power, and it is necessary to reduce the rotation speed of the humidifying fan to increase the temperature of the humidified air. Determine that the currently turned-on power of the PTC heating element is already the minimum power, and it is necessary to increase the rotation speed of the humidifying fan to reduce the temperature of the humidified air.

[0083] In an exemplary embodiment, the PTC heating element includes multiple PTC heating element groups with different powers, 2 n A kind of switch combination is represented by different switch combination control values Control[K]; the switch combination control value is n bits, and corresponds to n groups of PTC heating elements one by one. The value of each bit is used to represent whether the corresponding PTC heating element is turned on or off; the maximum value of K represents that the n-bit value is turned on. Taking 3 PTC heating elements as an example, the maximum value of K is 8. When K = 8, it means that the n-bit value is turned on, that is, 111, and all three PTC heating elements are turned on.

[0084] In this embodiment, by using a PTC heating element to heat air, it is possible to solve the problem that the heating module of the waterless humidifying device in the current air conditioner has a potential fire hazard due to the high temperature of the heating wire. In this embodiment, a method of combining multiple PTC heating elements with different powers to control the rated power is applied. The hardware circuit is simple, and there is no need to consider issues such as the detection of the control voltage and the heat dissipation of the power transistor switch, which can effectively control the temperature of the air.

[0085] Embodiment 3

[0086] To achieve the above object, this embodiment of the present application proposes a process for controlling the air temperature, as Figure 6 shown.

[0087] In this embodiment, the power of the combination method in the control sequence is arranged in ascending order. The PTC heating element includes multiple PTC heating element groups with different powers, and 2 n kinds of switch combinations are represented by different switch combination control values Control[K]; the value of K is corresponding to the element in the control sequence. For example, the value of K can be converted into the element in the control sequence by means of numerical conversion. For example: convert K from decimal to binary, and the obtained binary number is the element in the control sequence. Taking n = 3 as an example, Control[k] = {000, 001, 010, 011, 100, 101, 110, 111}; for example, when K is 1, 001 is obtained. When n = 3, the value range of K is 0 - 7; it is also possible to use K as the serial number to obtain the element at the corresponding position in the control sequence. For example, when K is 5, the 5th element 100 in the control sequence is obtained. When n = 3, the value range of K is 1 - 8.

[0088] First, calculate the temperature difference T between the actual temperature Tre of the water vapor and the target set temperature Ttar; when it is judged that the temperature difference T is less than or equal to 0, continue to judge whether the temperature difference is greater than the set coefficient H; when the temperature difference is not greater than the set coefficient H, that is, within the allowable temperature difference range H, keep the current control value Control[K] unchanged; when the temperature difference is greater than the set coefficient H, it is necessary to further judge whether the value of K in the current control value Control[K] is equal to the maximum value. When the value of K in the control value Control[K] is not equal to the maximum value, set K = K + 1; when the value of K in the control value Control[K] is equal to the maximum value, reduce the rotation speed of the humidifying fan. When it is judged that the temperature difference T is greater than 0, then continue to judge whether the temperature difference is greater than the set coefficient H; when the temperature difference is not greater than the set coefficient H, that is, within the allowable temperature difference range H, keep the current control value Control[K], when the temperature difference is greater than the set coefficient H, it is necessary to further judge whether K of the current control value Control[K] is equal to the minimum value. When K of the current control value Control[K] is not equal to the minimum value, set K = K - 1. If K is equal to the minimum value, increase the rotation speed of the humidifying fan.

[0089] Those of ordinary skill in the art will understand that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, and their appropriate combinations. In the hardware implementation, the division between the functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be executed by several physical components in cooperation. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

Claims

1. An anhydrous humidification device, comprising a humidification module, characterized in that, It further includes: a heating module, a temperature detection module and a control module; the heating module includes a PTC heating element; the PTC heating element is used to heat the air entering the anhydrous humidifying device when it is turned on; the humidifying module is used to humidify the heated air; the temperature detection module is used to detect the temperature value of the humidified air; the control module is used to adjust the power of the turned-on PTC heating element according to the detected temperature value; the PTC heating element includes multiple PTC heating element groups with sequentially decreasing or increasing powers; among the multiple PTC heating element groups, except for the two PTC heating element groups with the smallest powers, the power of any other PTC heating element group is greater than the sum of the powers of the other PTC heating element groups with powers lower than this PTC heating element group.

2. The anhydrous humidifying device according to claim 1, wherein the PTC heating element includes multiple PTC heating element groups with different powers; adjusting the power of the turned-on PTC heating element includes adjusting the number of turned-on PTC heating element groups and / or changing the turned-on PTC heating element groups.

3. The anhydrous humidifying device according to claim 2, wherein It further includes multiple relays, and the relays correspond to the PTC heating element groups one by one; the control module controls the turning on or off of different PTC heating element groups through different relays.

4. A method for controlling air temperature, characterized in that, Applied to the anhydrous humidifying device according to any one of claims 1-3, it includes: real-time detecting the temperature of the humidified air; calculating the temperature difference between the temperature of the humidified air and a preset target temperature; adjusting the power of the turned-on thermistor PTC heating element according to the temperature difference and a preset temperature adjustment rule; the PTC heating element includes multiple PTC heating element groups with sequentially decreasing or increasing powers; among the multiple PTC heating element groups, except for the two PTC heating element groups with the smallest powers, the power of any other PTC heating element group is greater than the sum of the powers of the other PTC heating element groups with powers lower than this PTC heating element group.

5. The method for controlling air temperature according to claim 4, wherein the anhydrous humidifying device includes: a humidifier or an air conditioner.

6. The method for controlling air temperature according to claim 4, characterized in that, The adjusting the power of the turned-on PTC heating element according to the temperature difference and a preset temperature adjustment rule includes: determining that the absolute value of the temperature difference is not within the preset range and keeping the power of the currently turned-on PTC heating element unchanged; determining that the absolute value of the temperature difference is within the preset range, increasing the power of the turned-on PTC heating element if the temperature difference is less than or equal to 0, and decreasing the power of the turned-on PTC heating element if the temperature difference is greater than 0.

7. The method for controlling air temperature according to claim 6, wherein the humidifying module includes: a humidifying fan; after adjusting the power of the turned-on PTC heating element according to the temperature difference and a preset temperature adjustment rule, it further includes: determining that the power of the PTC heating element has been adjusted to the maximum and decreasing the rotation speed of the humidifying fan; determining that the power of the PTC heating element has been adjusted to the minimum and increasing the rotation speed of the humidifying fan.

8. The method for controlling air temperature according to claim 6, characterized in that, Increasing the power of the turned-on PTC heating element includes: turning on more PTC heating element groups and / or turning on PTC heating element groups with greater powers; Reducing the power of the activated PTC heating elements includes: turning off one or more activated PTC heating element groups and / or replacing the activated PTC heating element groups with PTC heating element groups having a smaller power.

9. The method for controlling air temperature according to claim 6, characterized in that, The PTC heating elements include n PTC heating element groups, where n is a positive integer; the n PTC heating element groups have multiple activation combination modes with different powers, and the multiple activation combination modes are sorted in ascending order of power to obtain a control sequence. Keeping the power of the currently activated PTC heating elements unchanged includes: keeping the current activation combination mode of the PTC heating element groups unchanged. Increasing the power of the activated PTC heating elements includes: changing the current activation combination mode to the next activation combination mode in the control sequence and adjusting the activated PTC heating element groups according to the changed activation combination mode. Reducing the power of the activated PTC heating elements includes: changing the current activation combination mode to the previous activation combination mode in the control sequence and adjusting the activated PTC heating element groups according to the changed activation combination mode.

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