Air conditioning terminal equipment, control method thereof and air conditioning unit

Abstract

The invention discloses air conditioner terminal equipment, a control method thereof and an air conditioning unit, and the air conditioner terminal equipment comprises an air inlet section, a heat exchanger and an air outlet section; the first fan is located on the air inlet section and used for leading inlet air of the air inlet section to the heat exchanger for heat exchange when the air conditioner terminal equipment conducts heat exchange, and then air is discharged through an air outlet of the air outlet section. And the second fan is located at the air outlet section and used for feeding air from an air outlet of the air outlet section when the first motor needs to be cooled, and cooling the first motor after the fed air passes through the heat exchanger. The problem that the service life of the motor and the comfort of a user are affected due to the fact that the motor of the air conditioner terminal equipment cannot be rapidly cooled when being overheated in the prior art is solved, and the service life of the motor and the comfort of the user of the air conditioner terminal equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular, to an air-conditioning terminal device, a control method thereof, and an air-conditioning unit. Background Art

[0002] Air-conditioning terminal devices are widely used in hotels, office buildings, hospitals, commercial and residential buildings, research institutions, etc. The motor of the air-conditioning terminal device drives the fan to cool or heat the indoor air or the mixed indoor and outdoor air through the surface cooler and then send it into the room, so as to lower or raise the indoor temperature to meet the comfort requirements of users.

[0003] The motor generates heat during operation. When it runs continuously for a period of time, the heat of the motor will reach the heat limit value, which affects the service life of the motor and may even burn out the motor in severe cases. When the temperature is high in summer and the air-conditioning terminal device is just started, in order to reach the set temperature, the motor often runs at a high load, accelerating the temperature rise of the motor. Currently, the common motor cooling control method in the market is that when the motor reaches the temperature limit value, the motor immediately stops running and cools naturally. After the motor temperature drops, it is restarted. This method often has a long cooling time and the air-conditioning terminal stops for too long, greatly reducing the comfort of users.

[0004] In view of the problem that the motor of the air-conditioning terminal device in the related art cannot be quickly cooled when it overheats, which affects the service life of the motor and the comfort of users, no effective solution has been proposed yet. Summary of the Invention

[0005] The present invention provides an air-conditioning terminal device, a control method thereof, and an air-conditioning unit to at least solve the problem that the motor of the air-conditioning terminal device in the prior art cannot be quickly cooled when it overheats, which affects the service life of the motor and the comfort of users.

[0006] To solve the above technical problems, according to one aspect of the embodiments of the present invention, an air-conditioning terminal device is provided, including: an air inlet section, a heat exchanger, and an air outlet section; a first fan located in the air inlet section, the air inlet of the first fan is communicated with the air inlet of the air inlet section, the air outlet of the first fan is communicated with the air inlet side of the heat exchanger, and the first fan is used to lead the air in the air inlet section to the heat exchanger for heat exchange when the air-conditioning terminal device performs heat exchange, and then the air exits through the air outlet of the air outlet section; wherein, the first fan at least includes a first motor for controlling the operation of the first fan; a second fan located in the air outlet section, one end is communicated with the air outlet side of the heat exchanger, and the other end is communicated with the air outlet of the air outlet section, and is used to intake air from the air outlet of the air outlet section when the first motor needs to dissipate heat, and dissipate heat to the first motor after passing the air through the heat exchanger; wherein, when the first motor needs to dissipate heat, the first fan stops running.

[0007] Further, the heat exchange modes of the air-conditioning terminal device at least include normal heat exchange and rapid heat exchange; the second fan is a steerable fan, which is used to stop when the air-conditioning terminal device performs normal heat exchange, and rotate forward when the air-conditioning terminal device performs rapid heat exchange, leading the air discharged from the heat exchanger to the air outlet of the air outlet section; wherein, when the first motor needs to dissipate heat, the second fan rotates reversely.

[0008] Further, the air suction direction of the blades of the second fan is adjustable. Wherein, the blades suck air forward when the air-conditioning terminal device performs rapid heat exchange, and suck air reversely when the first motor needs to dissipate heat.

[0009] Further, the second fan is a centrifugal fan. The second fan is provided with a rotating shaft, which is connected to the blades and used to adjust the rotating direction of the blades, so as to adjust the air suction direction of the blades.

[0010] Further, it further includes: a fixing plate, located between the first fan and the heat exchanger, for fixing the first fan; wherein, a heat dissipation opening is provided at a position on the fixing plate opposite to the first motor, for dissipating heat from the first motor; a baffle, correspondingly arranged with the heat dissipation opening, for blocking the heat dissipation opening when the air-conditioning terminal device performs heat exchange, and opening the heat dissipation opening when the first motor needs to dissipate heat.

[0011] Further, it further includes: a slide rail, located on the fixing plate, and the baffle is slidably connected to the slide rail for blocking or opening the heat dissipation opening.

[0012] Further, it further includes: an ambient temperature sensor, used to detect the ambient temperature where the air-conditioning terminal device is located, so as to determine the heat exchange mode of the air-conditioning terminal device according to the ambient temperature; a motor temperature sensor, used to detect the temperature of the first motor, so as to determine whether the first motor needs to dissipate heat according to the temperature of the first motor.

[0013] According to another aspect of the embodiments of the present invention, there is provided a control method for an air-conditioning terminal device, which is applied to the air-conditioning terminal device as described above. The method includes: after the first fan is started, obtaining the temperature of the first motor; judging whether the first motor needs to dissipate heat according to the temperature of the first motor; controlling the operation of the first fan and the second fan according to the judgment result.

[0014] Further, before the first fan is started, it further includes: obtaining the ambient temperature where the air-conditioning terminal device is located, determining the heat exchange mode of the air-conditioning terminal device according to the ambient temperature; controlling the operation of the first fan and the second fan according to the heat exchange mode of the air-conditioning terminal device.

[0015] Further, the heat exchange modes of the air-conditioning terminal device at least include normal heat exchange and rapid heat exchange; determining the heat exchange mode of the air-conditioning terminal device according to the ambient temperature includes: calculating the difference between the ambient temperature and a preset ambient temperature; when the difference is less than a preset difference, determining that the heat exchange mode is the normal heat exchange; when the difference is greater than or equal to the preset difference, determining that the heat exchange mode is the rapid heat exchange; controlling the operation of the first fan and the second fan according to the heat exchange mode of the air-conditioning terminal device includes: when the heat exchange mode is the normal heat exchange, controlling the first fan to start up and the second fan to shut down; when the heat exchange mode is the rapid heat exchange, controlling the first fan and the second fan to start up, and the second fan to rotate forward, and leading the air outlet of the heat exchanger to the air outlet of the air outlet section.

[0016] Further, judging whether the first motor needs heat dissipation according to the temperature of the first motor includes: when the temperature of the first motor is greater than a preset motor temperature, determining that the first motor needs heat dissipation; when the temperature of the first motor is less than or equal to the preset motor temperature, determining that the first motor does not need heat dissipation; controlling the operation of the first fan and the second fan according to the judgment result includes: when the first motor needs heat dissipation, controlling the first motor to shut down, and the second fan to rotate reversely, taking in air from the air outlet of the air outlet section, and dissipating heat to the first motor after passing the air through the heat exchanger; when the first motor does not need heat dissipation, controlling the first fan and the second fan to maintain the current operating state.

[0017] According to another aspect of the embodiments of the present invention, an air-conditioning unit is provided, including the air-conditioning terminal device as described above.

[0018] According to another aspect of the embodiments of the present invention, a storage medium containing computer-executable instructions is provided, and the computer-executable instructions are used to execute the air-conditioning terminal device control method as described above when executed by a computer processor.

[0019] In the present invention, an air-conditioning terminal device is provided. A second fan is newly added to the air outlet section of the air-conditioning terminal device. When the first motor needs heat dissipation, the second fan can take in air from the air outlet of the air outlet section, and dissipate heat to the first motor after passing the air through the heat exchanger. By blowing air from the second fan towards the direction where the first motor is located, the cold air at the air-conditioning terminal device and the heat exchanger is used to dissipate heat to the first motor, quickly cooling the motor, preventing the motor from overheating, effectively avoiding the problems of too long heat dissipation time and low heat dissipation efficiency in the prior art for the motor heat dissipation method, and improving the service life of the motor and the comfort of users of the air-conditioning terminal device. Description of the Drawings

[0020] Figure 1It is an optional structural schematic diagram of an air-conditioning terminal device according to an embodiment of the present invention;

[0021] Figure 2 It is an optional air outlet schematic diagram when the air-conditioning terminal device according to an embodiment of the present invention is exchanging heat normally;

[0022] Figure 3 It is an optional air outlet schematic diagram when the air-conditioning terminal device according to an embodiment of the present invention is exchanging heat quickly;

[0023] Figure 4 It is an optional air outlet schematic diagram when the first motor according to an embodiment of the present invention is dissipating heat;

[0024] Figure 5 It is an optional schematic diagram of the rotation direction of the blades when the air-conditioning terminal device according to an embodiment of the present invention is exchanging heat normally;

[0025] Figure 6 It is an optional schematic diagram of the rotation direction of the blades when the first motor according to an embodiment of the present invention is dissipating heat;

[0026] Figure 7 It is another optional structural schematic diagram of the air-conditioning terminal device according to an embodiment of the present invention;

[0027] Figure 8 It is an optional flowchart of the control method of the air-conditioning terminal device according to an embodiment of the present invention;

[0028] Figure 9 It is another optional flowchart of the control method of the air-conditioning terminal device according to an embodiment of the present invention.

[0029] Explanation of reference numerals:

[0030] 1. Inlet air section; 2. Heat exchanger; 3. Outlet air section; 4. First fan; 5. Second fan; 6. First motor; 7. Fixed plate; 8. Baffle; 9. Slide rail; 10. Impeller; 11. Blade; 12. Rotating shaft; 13. Motor temperature sensor. Detailed implementation manners

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a", "said", and "the" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0033] It should be understood that the term "and / or" used herein is merely a description of the associated relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0034] It should be understood that although the terms first, second, third, etc. may be used to describe the controllers in the embodiments of the present invention, these controllers should not be limited to these terms. These terms are only used to distinguish the controllers connected to different devices. For example, without departing from the scope of the embodiments of the present invention, the first controller may also be referred to as the second controller, and similarly, the second controller may also be referred to as the first controller.

[0035] Depending on the context, the words "if", "when" as used herein may be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0036] It should also be noted that the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such commodity or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of another identical element in the commodity or device comprising said element.

[0037] The optional embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Embodiment 1

[0039] During the operation of the motor, heat is generated. After continuous operation for a period of time, the heat of the motor will reach the limit value of the motor, which will affect the service life of the motor. In severe cases, the motor will be burned out. Moreover, when the temperature is relatively high in summer, in order to reach the set temperature, the motor of the air-conditioning terminal equipment will operate at high load, accelerating the temperature rise of the motor. Currently, the common motor cooling control method in the market is that when the motor reaches the temperature limit value, the motor will stop immediately, and it will restart after the natural temperature drops. This method often has a long cooling time, and the shutdown time of the air-conditioning terminal is too long, which will greatly reduce the comfort of users.

[0040] To solve the above problems, in the preferred Embodiment 1 of the present invention, an air-conditioning terminal equipment is provided. Specifically, Figure 1 An optional structural schematic diagram of the air-conditioning terminal equipment is shown, as Figure 1 shown, the air-conditioning terminal equipment includes:

[0041] An air inlet section 1, a heat exchanger 2, and an air outlet section 3;

[0042] A first fan 4, located in the air inlet section 1. The air inlet of the first fan 4 is communicated with the air inlet of the air inlet section 1, and the air outlet of the first fan 4 is communicated with the air inlet side of the heat exchanger 2. The first fan 4 is used to direct the air in the air inlet section 1 to the heat exchanger 2 for heat exchange during the heat exchange of the air-conditioning terminal equipment, and then the air exits through the air outlet of the air outlet section 3. Among them, the first fan 4 at least includes a first motor 6, which is used to control the operation of the first fan 4; as Figure 1 shown, the first fan 4 may include two or more sub-fans. The motor is connected to the sub-fans to drive the sub-fans to operate. The sub-fans are fixed in the air inlet section 1 (air inlet air box). When the air-conditioning terminal equipment operates normally, that is, during heat exchange, the first fan 4 operates, directs the air to the heat exchanger 2 for heat exchange and then enters the room to exchange heat with the room.

[0043] The second fan 5 is located in the air outlet section 3. One end is connected to the air outlet side of the heat exchanger 2, and the other end is connected to the air outlet of the air outlet section 3. It is used to intake air from the air outlet of the air outlet section 3 when the first motor 6 needs to dissipate heat, and dissipate heat to the first motor 6 after passing the intake air through the heat exchanger 2. Among them, when the first motor 6 needs to dissipate heat, the first fan 4 stops operating. Since the second fan 5 intakes air from the air outlet of the air outlet section 3 and dissipates heat to the first motor 6 after passing the intake air through the heat exchanger 2 when the first motor 6 needs to dissipate heat, and the wind direction is opposite to that when the first fan 4 exchanges heat at this time, the first fan 4 stops operating to avoid affecting heat dissipation. When the air-conditioning terminal device exchanges heat normally, the air outlet after exchanging heat through the heat exchanger 2 can directly enter the room through the air outlet section 3 such as the air outlet box, or can enter the room through the second fan 5. The specific method can be determined according to the position of the second fan 5. When the first motor 6 needs to dissipate heat, it is default that the air-conditioning terminal device operates in the cooling mode at this time. The cold air in the room can enter the location where the first motor 6 is located in the reverse direction. At this time, the heat exchanger 2 can be determined whether to be turned on according to needs. When the heat exchanger 2 is turned on, the heat dissipation efficiency of the motor can be further increased, which is beneficial to the stable operation of the motor. At the same time, after the motor resumes operation in time, the inconvenience brought to users by the fan shutdown can be avoided, and the comfort of users can be improved.

[0044] In the above embodiment, an air-conditioning terminal device is provided. A second fan is newly added to the air outlet section of the air-conditioning terminal device. When the first motor needs to dissipate heat, the second fan can intake air from the air outlet of the air outlet section and dissipate heat to the first motor after passing the intake air through the heat exchanger. By blowing air from the second fan towards the direction where the first motor is located, the cold air at the air-conditioning terminal device and the heat exchanger is used to dissipate heat to the first motor, quickly cool down the motor, prevent the motor from overheating, effectively avoid the problems of too long heat dissipation time and low heat dissipation efficiency in the existing heat dissipation method of the motor, and improve the service life of the motor and the comfort of the users of the air-conditioning terminal device.

[0045] In order to further improve the utilization efficiency of the second fan 5, in addition to the above normal heat exchange, the heat exchange method of the air-conditioning terminal device also includes rapid heat exchange. When the air-conditioning terminal device conducts normal heat exchange, the second fan 5 stops operating. When the air-conditioning terminal device conducts rapid heat exchange, the second fan 5 rotates forward, leading the air outlet of the heat exchanger 2 to the air outlet of the air outlet section 3, that is, the air outlet of the heat exchanger 2 passes through the second fan 5 and then enters the room, further accelerating heat exchange, improving the heat exchange capacity of the air-conditioning terminal device and the comfort of users. At the same time, it avoids the first motor 6 from operating overloaded and overheating, and greatly improves the service life of the motor. Through the above rapid heat exchange method, the heat exchange methods of the air-conditioning terminal device are increased, different heat exchange requirements are met, and the performance of the air-conditioning terminal device and the comfort of users are improved.

[0046] Figure 2 A schematic diagram of the air outlet when the air-conditioning terminal device exchanges heat normally is shown, such asFigure 2 As shown, the air intake of the first blower 4 passes through the heat exchanger 2 and then enters the room through the second blower 5. The second blower 5 is a dual-air outlet blower, one end of which is connected to the heat exchanger 2 and the other end is connected to the room. During normal heat exchange, the motor of the second blower 5 does not operate, and the air outlet of the heat exchanger 2 only passes through the second blower 5.

[0047] Figure 3 Shows a schematic diagram of the air outlet for rapid heat exchange of the air-conditioning terminal equipment, such as Figure 3 As shown, the air intake of the first blower 4 passes through the heat exchanger 2 and then enters the room through the second blower 5. The motor of the second blower 5 rotates forward, and the air outlet of the heat exchanger 2 enters the room after being accelerated by the impeller 10 of the second blower 5, thereby improving the heat exchange efficiency.

[0048] Figure 4 Shows a schematic diagram of the air outlet for the heat dissipation of the first motor of the air-conditioning terminal equipment, such as Figure 4 As shown, the first blower 4 stops operating, the motor of the second blower 5 rotates in the reverse direction, driving the impeller 10 of the second blower 5 to rotate in the reverse direction, taking in air from the air outlet of the air outlet section 3, and passing the intake air through the heat exchanger 2 to dissipate heat from the first motor 6.

[0049] Therefore, the second blower 5 is a steerable blower, which stops operating during normal heat exchange of the air-conditioning terminal equipment, rotates forward during rapid heat exchange of the air-conditioning terminal equipment, and rotates in the reverse direction when the first motor 6 needs to dissipate heat.

[0050] In a preferred embodiment of the present invention, the air suction direction of the blades 11 of the second blower 5 is adjustable. Among them, the blades 11 suck air forward during rapid heat exchange of the air-conditioning terminal equipment, and suck air in the reverse direction when the first motor 6 needs to dissipate heat. In the present invention, in addition to adding the second blower 5 with adjustable air direction, an impeller 10 with adjustable blades 11 is also added. By adjusting the direction of the blades 11, it can rotate forward and backward, adjust the air suction direction, and realize the air direction change. If the direction of the blades 11 is not adjustable, that is, the direction of the blades 11 for forward air outlet is still used when the second blower 5 blows air in the reverse direction, it will hinder the air outlet and affect the air outlet efficiency. Therefore, the present invention adopts an impeller 10 with adjustable blades 11, and the blades 11 also turn after the motor turns, so that the air outlet efficiency reaches the highest, the heat exchange capacity can be increased, and the heat exchange efficiency can be improved.

[0051] Such as Figure 1 And Figure 2 As shown, the second blower 5 is a centrifugal blower, which is coordinated with the adjustable direction of the above-mentioned blades 11. Specifically, in order to adjust the rotation direction of the blades 11, the second blower 5 is provided with a rotating shaft 12, which is connected to the blades 11. Preferably, the rotating shaft 12 is connected to the center of the blades 11, which can effectively and stably adjust the rotation direction of the blades 11, thereby adjusting the air suction direction of the blades 11 and improving the air outlet efficiency.

[0052] Figure 5 Shows a schematic diagram of the rotation direction of the blades during normal heat exchange of the air-conditioning terminal device. As Figure 5 shown, during normal heat exchange of the air-conditioning terminal device, the air flowing out of the second fan 5 will drive the blades 11 to rotate forward, and the air will flow out from the air outlet of the air outlet section 3, that is, flow out into the room.

[0053] During rapid heat exchange of the air-conditioning terminal device, the motor of the second fan 5 drives the impeller 10 to rotate forward. At this time, the blades 11 rotate forward, and the air flows out from the air outlet of the air outlet section 3, that is, flows out into the room, which is Figure 5 consistent with that shown.

[0054] Figure 6 Shows a schematic diagram of the rotation direction of the blades during heat dissipation of the first motor of the air-conditioning terminal device. As Figure 6 shown, during heat dissipation of the first motor 6 of the air-conditioning terminal device, the motor of the second fan 5 drives the impeller 10 to rotate reversely. At this time, the blades 11 rotate reversely, and the air flows out in the direction of the first motor 6.

[0055] Figure 7 Shows another optional structural schematic diagram of the air-conditioning terminal device. As Figure 7 shown, the device further includes: a fixing plate 7, located between the first fan 4 and the heat exchanger 2, for fixing the first fan 4; wherein, a heat dissipation opening is provided at a position on the fixing plate 7 opposite to the first motor 6 for dissipating heat from the first motor 6; a baffle 8, corresponding to the heat dissipation opening, for blocking the heat dissipation opening during heat exchange of the air-conditioning terminal device and opening the heat dissipation opening when the first motor 6 needs to dissipate heat. By providing a heat dissipation opening on the fixing plate 7, when the heat dissipation opening is blocked, the heat dissipation opening is sealed, and normal heat exchange or rapid heat exchange is carried out to avoid air leakage from the heat dissipation opening resulting in a reduction in heat exchange efficiency. When the heat dissipation opening is opened, heat is dissipated from the first motor 6. Through the cooperation of the above heat dissipation opening and the baffle 8, heat exchange of the air-conditioning terminal device and heat dissipation of the first motor 6 can be achieved simultaneously. Not only is the structure simple, but also the heat exchange efficiency and heat dissipation efficiency are improved.

[0056] Optionally, the device further includes: a slide rail 9, located on the fixing plate 7, and the baffle 8 is slidably connected to the slide rail 9 for blocking or opening the heat dissipation opening. As Figure 7 shown, there is a heat dissipation opening on the fixing plate 7 opposite to the motor. The baffle 8 is arranged on the fixing plate 7 and opposite to the motor position to block the heat dissipation opening. The slide rail 9 is connected to the baffle 8, and the baffle 8 can move up and down to block or open the heat dissipation opening. Other types of baffles 8 can also be used, such as a baffle 8 that moves left and right, or other connection methods other than the slide rail 9 for blocking the heat dissipation opening.

[0057] In another alternative embodiment of the present invention, there is also provided: an ambient temperature sensor for detecting the ambient temperature where the air-conditioning terminal device is located to determine the heat exchange mode of the air-conditioning terminal device according to the ambient temperature; a motor temperature sensor 13 for detecting the temperature of the first motor 6 to determine whether the first motor 6 needs heat dissipation according to the temperature of the first motor 6. The heat exchange mode of the air-conditioning terminal device and whether the first motor 6 dissipates heat are accurately determined through the temperature data obtained by the temperature sensor, improving the heat exchange efficiency and the operation stability of the air conditioner.

[0058] Embodiment 2

[0059] In a preferred Embodiment 2 of the present invention, a control method for an air-conditioning terminal device is provided, which is applied to the air-conditioning terminal device in the above Embodiment 1. Specifically, Figure 8 An alternative flowchart showing the method is as Figure 8 shown. The method includes the following steps S802 - S806:

[0060] S802: After the first blower is turned on, obtain the temperature of the first motor;

[0061] S804: Determine whether the first motor needs heat dissipation according to the temperature of the first motor;

[0062] S806: Control the operation of the first blower and the second blower according to the judgment result.

[0063] In the above embodiment, an air-conditioning terminal device is provided. A second blower is newly added to the air outlet section of the air-conditioning terminal device. When the first motor needs heat dissipation, the second blower can intake air from the air outlet of the air outlet section and dissipate heat to the first motor after passing the intake air through the heat exchanger. By blowing air from the second blower towards the direction where the first motor is located, the cold air at the air-conditioning terminal device and the heat exchanger is used to dissipate heat to the first motor, quickly cooling the motor, preventing the motor from overheating, effectively avoiding the problems of too long heat dissipation time and low heat dissipation efficiency in the heat dissipation mode of the existing technology, and improving the service life of the motor and the comfort of the users of the air-conditioning terminal device.

[0064] In a preferred embodiment of the present invention, before the first blower is turned on, it further includes: obtaining the ambient temperature where the air-conditioning terminal device is located, determining the heat exchange mode of the air-conditioning terminal device according to the ambient temperature; controlling the operation of the first blower and the second blower according to the heat exchange mode of the air-conditioning terminal device. Determining whether the heat exchange mode of the air-conditioning terminal device is normal heat exchange or rapid heat exchange through the ambient temperature to meet the heat exchange requirements of the users.

[0065] Specifically, the heat exchange modes of the air-conditioning terminal equipment include at least normal heat exchange and rapid heat exchange; determining the heat exchange mode of the air-conditioning terminal equipment according to the ambient temperature includes: calculating the difference between the ambient temperature and the preset ambient temperature; when the difference is less than the preset difference, determining the heat exchange mode as normal heat exchange; when the difference is greater than or equal to the preset difference, determining the heat exchange mode as rapid heat exchange; that is, the heat exchange mode of the air-conditioning terminal equipment can be determined according to the difference between the ambient temperature and the preset ambient temperature. When the heat exchange mode is normal heat exchange, control the first fan to start and the second fan to stop; when the heat exchange mode is rapid heat exchange, control the first fan and the second fan to start, and the second fan rotates forward, and lead the air outlet of the heat exchanger to the air outlet of the air outlet section. In the present invention, the heat exchange modes of the air-conditioning terminal equipment are divided into normal heat exchange and rapid heat exchange according to whether the second fan is started, which increases the heat exchange modes of the air-conditioning terminal equipment and meets different heat exchange requirements.

[0066] In another preferred embodiment of the present invention, determining whether the first motor needs to dissipate heat according to the temperature of the first motor includes: when the temperature of the first motor is greater than the preset motor temperature, determining that the first motor needs to dissipate heat; when the temperature of the first motor is less than or equal to the preset motor temperature, determining that the first motor does not need to dissipate heat; controlling the operation of the first fan and the second fan according to the judgment result includes: when the first motor needs to dissipate heat, controlling the first motor to stop, and the second fan rotates reversely, taking in air from the air outlet of the air outlet section, and dissipating heat to the first motor after passing the air through the heat exchanger; when the first motor does not need to dissipate heat, controlling the first fan and the second fan to maintain the current operating state. When the first motor does not need to dissipate heat, if the air-conditioning terminal equipment is in the normal heat exchange mode, the first fan maintains the operating state and the second fan maintains the shutdown state. If the air-conditioning terminal equipment is in the rapid heat exchange mode, the first fan maintains the operating state and the second fan maintains the operating state. Through the above solution, the control time of heat dissipation is accurately judged, and the motor is prevented from overheating for a long time, which affects the service life of the motor.

[0067] In the preferred embodiment 2 of the present invention, another control method for the air-conditioning terminal equipment is further provided. Specifically, Figure 9 showing an optional flowchart of the method, as Figure 9 shown, the method includes the following steps S901-S908:

[0068] S901: Start;

[0069] S902: Obtain the ambient temperature; after the air-conditioning terminal equipment is turned on, the ambient temperature sensor detects the ambient temperature. When the temperature difference between the ambient temperature and the set temperature is small, enter the normal heat exchange. When the temperature difference between the ambient temperature and the set temperature is large, enter the rapid heat exchange mode;

[0070] S903: Rapid heat exchange, then return to S902; At this time, the first fan and the first motor are running normally, and the second fan and the second motor start to run. At this time, the two fans are running simultaneously, greatly improving the heat exchange capacity and avoiding the first motor from running overload, greatly improving the user's comfort; When the temperature difference is small, switch to the normal heat exchange mode;

[0071] S904: Normal heat exchange, at this time, the first fan and the first motor are running normally, and the second fan and the second motor are in the stopped state;

[0072] S905: Obtain the motor temperature; After the air-conditioning terminal equipment runs for a period of time, the motor temperature sensor starts to detect. When the motor temperature is low, continue to maintain the normal heat exchange or rapid heat exchange mode. When the motor temperature is high, enter the motor cooling mode;

[0073] S906: Motor cooling mode, then return to S905; At this time, the first motor and the first fan stop running, the baffle on the fixed plate moves down along the slide rail, and the heat dissipation port is exposed. The second motor in the second fan rotates in reverse, driving the impeller to rotate in reverse. The rotating shaft of the blade starts to rotate in the reverse direction, that is, the blade angle is changed to the reverse air intake angle. At this time, the second fan sucks air and blows it towards the heat exchanger, and then blows it towards the first motor through the heat dissipation port to quickly cool the first motor. When the temperature of the first motor reaches the normal temperature, switch to the normal heat exchange mode and continue to run until the end;

[0074] S907: Normal heat exchange;

[0075] S908: End.

[0076] In the above embodiment, the motor temperature is fed back through the motor temperature sensor, the impeller is adjusted, and the air direction is changed to quickly cool the motor, improving the service life of the motor and the user comfort.

[0077] Embodiment 3

[0078] Based on the air-conditioning terminal equipment provided in the above Embodiment 1, in the preferred Embodiment 3 of the present invention, a unit is further provided, including the air-conditioning terminal equipment as described above.

[0079] In the above embodiment, an air-conditioning terminal equipment is provided. A second fan is newly added to the air outlet section of the air-conditioning terminal equipment. When the first motor needs to dissipate heat, the second fan can intake air from the air outlet of the air outlet section and dissipate heat to the first motor after passing the air through the heat exchanger. By blowing air from the second fan towards the direction where the first motor is located, the cold air at the air-conditioning terminal equipment and the heat exchanger is used to dissipate heat to the first motor, quickly cooling the motor, preventing the motor from overheating, effectively avoiding the problems of too long heat dissipation time and low heat dissipation efficiency in the existing motor heat dissipation method, and improving the service life of the motor and the comfort of the users of the air-conditioning terminal equipment.

[0080] Example 4

[0081] Based on the air-conditioning terminal device control method provided in the above-mentioned Example 2, in the preferred Example 4 of the present invention, a storage medium containing computer-executable instructions is further provided, and the computer-executable instructions are used to execute the air-conditioning terminal device control method as described above when executed by a computer processor.

[0082] In the above implementation manner, an air-conditioning terminal device is provided. A second fan is newly added to the air outlet section of the air-conditioning terminal device. When the first motor needs to dissipate heat, the second fan can intake air from the air outlet of the air outlet section, and after passing the intake air through the heat exchanger, dissipate heat to the first motor. By blowing air from the second fan towards the direction where the first motor is located, the cold air at the air-conditioning terminal device and the heat exchanger is used to dissipate heat to the first motor, quickly cooling the motor, preventing the motor from overheating, effectively avoiding the problems of too long heat dissipation time and low heat dissipation efficiency in the prior art for the motor heat dissipation method, and improving the service life of the motor and the comfort of users of the air-conditioning terminal device.

[0083] The serial numbers of the above-mentioned embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0084] In the above embodiments of the present invention, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0085] In the several embodiments provided by the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only illustrative. For example, the division of the units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of units or modules can be in an electrical or other form.

[0086] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0087] In addition, in each embodiment of the present invention, each functional unit may be integrated into a processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0088] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, read-only memories (ROMs), random access memories (RAMs), mobile hard disks, magnetic disks or optical discs that can store program codes.

[0089] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common general knowledge or conventional technical means in the technical field of the present invention that are not invented by the present invention. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.

[0090] It should be understood that the present invention is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. An air conditioning terminal device, characterized in that, Comprising: An air inlet section, a heat exchanger, and an air outlet section; A first fan located in the air inlet section, the air inlet of the first fan being in communication with the air inlet of the air inlet section, the air outlet of the first fan being in communication with the air inlet side of the heat exchanger. The first fan is used to direct the incoming air from the air inlet section to the heat exchanger for heat exchange when heat exchange is carried out in the air-conditioning terminal device, and then the air is discharged through the air outlet of the air outlet section. Wherein, the first fan includes at least a first motor for controlling the operation of the first fan; A second fan located in the air outlet section, one end being in communication with the air outlet side of the heat exchanger and the other end being in communication with the air outlet of the air outlet section. It is used to intake air from the air outlet of the air outlet section when the first motor needs to dissipate heat, and dissipate heat from the first motor after passing the incoming air through the heat exchanger. Wherein, the first fan stops operating when the first motor needs to dissipate heat.

2. The air-conditioning terminal device according to claim 1, wherein The heat exchange mode of the air-conditioning terminal device includes at least normal heat exchange and rapid heat exchange; the second fan is a steerable fan, which stops operating when the air-conditioning terminal device conducts normal heat exchange, and rotates forward when the air-conditioning terminal device conducts rapid heat exchange, directing the air discharged from the heat exchanger to the air outlet of the air outlet section. Wherein, the second fan rotates in the reverse direction when the first motor needs to dissipate heat.

3. The air-conditioning terminal device according to claim 2, characterized in that, The air intake direction of the blades of the second fan is adjustable. Wherein, the blades intake air in the forward direction when the air-conditioning terminal device conducts rapid heat exchange, and intake air in the reverse direction when the first motor needs to dissipate heat.

4. The air-conditioning terminal device according to claim 3, wherein, The second fan is a centrifugal fan, and the second fan is provided with a rotating shaft connected to the blades for adjusting the rotating direction of the blades, thereby adjusting the air intake direction of the blades.

5. The air-conditioning terminal device according to claim 1, wherein Further comprising: A fixing plate located between the first fan and the heat exchanger for fixing the first fan. Wherein, a heat dissipation opening is provided at a position on the fixing plate facing the first motor for dissipating heat from the first motor; A baffle corresponding to the heat dissipation opening, which is used to block the heat dissipation opening when the air-conditioning terminal device conducts heat exchange, and open the heat dissipation opening when the first motor needs to dissipate heat.

6. The air-conditioning terminal device according to claim 5, characterized in that, Further comprising: A slide rail located on the fixing plate, and the baffle is slidably connected to the slide rail for blocking or opening the heat dissipation opening.

7. The air-conditioning terminal device according to claim 1, characterized in that Further comprising: An ambient temperature sensor for detecting the ambient temperature where the air-conditioning terminal device is located to determine the heat exchange mode of the air-conditioning terminal device according to the ambient temperature; A motor temperature sensor for detecting the temperature of the first motor to determine whether the first motor needs to dissipate heat according to the temperature of the first motor.

8. A control method for an air-conditioning terminal device, applied to the air-conditioning terminal device according to any one of claims 1 to 7, characterized in that, The method includes: After the first fan is turned on, obtaining the temperature of the first motor; Judging whether the first motor needs to dissipate heat according to the temperature of the first motor; Controlling the operation of the first fan and the second fan according to the judgment result.

9. The method according to claim 8, wherein Before the first fan is turned on, it further includes: Obtaining the ambient temperature where the air-conditioning terminal device is located, and determining the heat exchange mode of the air-conditioning terminal device according to the ambient temperature; Controlling the operation of the first fan and the second fan according to the heat exchange mode of the air-conditioning terminal device.

10. The method according to claim 9, wherein The heat exchange modes of the air-conditioning terminal device at least include normal heat exchange and rapid heat exchange; determining the heat exchange mode of the air-conditioning terminal device according to the ambient temperature includes: calculating the difference between the ambient temperature and a preset ambient temperature; when the difference is less than a preset difference, determining the heat exchange mode as the normal heat exchange; when the difference is greater than or equal to the preset difference, determining the heat exchange mode as the rapid heat exchange; Controlling the operation of the first fan and the second fan according to the heat exchange mode of the air-conditioning terminal device includes: when the heat exchange mode is the normal heat exchange, controlling the first fan to start up and the second fan to shut down; when the heat exchange mode is the rapid heat exchange, controlling the first fan and the second fan to start up, and the second fan to rotate forward, leading the air discharged from the heat exchanger to the air outlet of the air outlet section.

11. The method according to claim 8, wherein Judging whether the first motor needs heat dissipation according to the temperature of the first motor includes: when the temperature of the first motor is greater than a preset motor temperature, determining that the first motor needs heat dissipation; when the temperature of the first motor is less than or equal to the preset motor temperature, determining that the first motor does not need heat dissipation; Controlling the operation of the first fan and the second fan according to the judgment result includes: when the first motor needs heat dissipation, controlling the first motor to shut down, and the second fan to rotate reversely, taking in air from the air outlet of the air outlet section, and dissipating heat to the first motor after passing the air through the heat exchanger; when the first motor does not need heat dissipation, controlling the first fan and the second fan to maintain the current operating state.

12. An air conditioning unit, characterized in that, Including the air-conditioning terminal device according to any one of claims 1 to 7.

13. A storage medium containing computer-executable instructions, characterized in that, The computer-executable instructions are used to execute the air-conditioning terminal device control method according to any one of claims 8 to 11 when executed by a computer processor.

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