Electric control box, control method thereof and air conditioning unit

Abstract

The invention discloses an electric control box and a control method thereof, and an air conditioning unit, and the electric control box comprises an electric control box body, and an electrical element located in the electric control box body. The wind pressure sensor is positioned in the electric control box body and is used for detecting the wind pressure in the electric control box; and the controller is connected with the wind pressure sensor and is used for determining the sealing effect of the box body of the electric control box according to the wind pressure in the electric control box and performing early warning processing when the sealing effect is that sealing fails. The problem that in the prior art, self-protection of an electric control box fails in the using process is solved, and the reliability and stability of the electric control box and control of the electric control box are improved.

Description

Technical Field

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

[0002] For large electric control boxes such as screw machines (hereinafter referred to as units), a separate electric control box is required for the unit to control the unit. Screw machines are often used in spaces such as rooftops and cabins, and the electric control box needs to operate stably to ensure safety. Normal electric control boxes are IP-rated when they leave the factory to protect the electric control box. However, with the long-term effects of the environment in which the electric control box is located, especially the outdoor environment, such as wind and sun, the protection ability of the electric control box will gradually decrease. When after-sales personnel perform maintenance, they often find foreign matter, water stains, mildew, etc. in the electric control box. These phenomena can cause the sensitivity of electrical components to be damaged at the least, or even lead to serious accidents such as short circuits in the electric control box.

[0003] With regard to the problem of failure of the protection of the electric control box itself during use in the related art, no effective solution has been proposed yet. Summary of the invention

[0004] The present invention provides an electric control box and a control method thereof, and an air conditioning unit, so as to at least solve the problem of failure of self-protection of the electric control box during use in the prior art.

[0005] In order to solve the above technical problems, according to one aspect of an embodiment of the present invention, there is provided an electric control box, comprising: an electric control box body, electrical components located in the electric control box body; a wind pressure sensor located in the electric control box body, for detecting the wind pressure in the electric control box; a controller connected to the wind pressure sensor, for determining the sealing effect of the electric control box body according to the wind pressure in the electric control box, and performing early warning processing when the sealing effect is a sealing failure.

[0006] Furthermore, the number of the wind pressure sensor is at least one. When there are multiple wind pressure sensors, the wind pressure sensors are evenly distributed on the inner wall of the electric control box body.

[0007] Furthermore, the electrical control box is an electrical control box of an air-conditioning unit, and the electrical control box also includes: a low-temperature air duct, one end of which is connected to the compressor suction side of the air-conditioning unit, and the other end is connected to the electrical control box, for passing the low-temperature incoming air on the compressor suction side into the electrical control box to cool the electrical control box; a low-temperature fan, arranged in the low-temperature air duct, for accelerating the gas flow in the low-temperature air duct.

[0008] Furthermore, it also includes: a high-temperature air duct, one end of which is connected to the oil separator of the air-conditioning unit, and the other end is connected to the electric control box, for passing the high-temperature incoming air at the oil separator into the electric control box to heat the electric control box; wherein an electric heating belt is also provided on the outside of the oil separator for heating the oil separator; a high-temperature fan is provided in the high-temperature air duct for accelerating the gas flow in the high-temperature air duct.

[0009] Furthermore, it also includes: a low-temperature air inlet filter, arranged in the low-temperature air duct, for filtering the low-temperature air inlet in the low-temperature air duct; a high-temperature air inlet filter, arranged in the high-temperature air duct, for filtering the high-temperature air inlet in the high-temperature air duct.

[0010] According to another aspect of an embodiment of the present invention, there is provided an electric control box control method, which is applied to an electric control box as described above, and the method includes: detecting the wind pressure in the electric control box; determining the sealing effect of the electric control box body according to the wind pressure in the electric control box; and performing early warning processing when the sealing effect of the electric control box body is a sealing failure, so as to remind the user to maintain the electric control box body.

[0011] Furthermore, it also includes: determining the blockage degree of the air inlet filter according to the wind pressure in the electrical control box; wherein the air inlet filter includes a low-temperature air inlet filter and a high-temperature air inlet filter; the blockage degree includes at least mild blockage and severe blockage; when the blockage degree of the air inlet filter is severe blockage, performing early warning processing to remind the user to maintain the air inlet filter.

[0012] Furthermore, before detecting the wind pressure in the electric control box, it also includes: in the initial operation stage of the electric control box, controlling the low-temperature fan or the high-temperature fan to turn on; obtaining the wind pressure in the electric control box, and determining a preset wind pressure according to the wind pressure in the electric control box, wherein, when the wind pressure in the electric control box includes multiple wind pressures, the preset wind pressure is the average value of the wind pressures in the multiple electric control boxes; after the operation time of the electric control box reaches the preset time, triggering the detection of the wind pressure in the electric control box.

[0013] Furthermore, the sealing effect of the electric control box body is determined according to the wind pressure in the electric control box, or the blockage degree of the air inlet filter is determined according to the wind pressure in the electric control box, including: detecting whether the wind pressure meets the preset conditions; wherein the preset conditions include at least one of the following: any of the wind pressures is less than or equal to the product of the preset wind pressure and the preset ratio, the wind pressure is in a decreasing trend and the average value of the wind pressure is less than or equal to the product of the preset wind pressure and the preset ratio; if yes, the sealing effect of the electric control box body is determined to be a sealing failure or the blockage degree of the air inlet filter is a severe blockage; otherwise, the sealing effect of the electric control box body is determined to be a sealing not failing or the blockage degree of the air inlet filter is a slight blockage.

[0014] Furthermore, it also includes: detecting the temperature parameters in the electric control box; determining the temperature environment in the electric control box according to the temperature parameters; wherein the temperature environment at least includes: a high temperature environment and a low temperature environment; when the temperature environment is the high temperature environment, controlling the low temperature fan to turn on; when the temperature environment is the low temperature environment, controlling the high temperature fan to turn on, or controlling the high temperature fan and the electric heating belt to turn on.

[0015] According to another aspect of the embodiments of the present invention, there is provided an air conditioning unit, comprising the electric control box as described above.

[0016] According to another aspect of an embodiment of the present invention, there is provided a storage medium containing computer executable instructions, wherein the computer executable instructions are used to execute the electric control box control method as described above when executed by a computer processor.

[0017] In the present invention, a protection scheme for an electric control box is provided, which aims to warn in advance of the situation that the protection capability of the electric control box is damaged. In specific implementation, a wind pressure sensor is arranged in the electric control box body to detect the wind pressure in the electric control box. The controller determines the sealing effect of the electric control box body according to the wind pressure in the electric control box, and performs a warning process when the sealing effect is a failure of the seal. By adding a failure warning of the protection capability of the electric control box, the protection capability of the electric control box is detected in advance, and the electric control box is maintained in time when the protection fails, so as to avoid the failure of the electronic components in the electric control box caused by the failure of the protection of the electric control box, and improve the reliability and stability of the electric control box and its control. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an optional flow chart of an electric control box control method according to an embodiment of the present invention;

[0019] Figure 2 is another optional flow chart of the electric control box control method according to an embodiment of the present invention;

[0020] Figure 3 is an optional structural block diagram of an air conditioning control device according to an embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1. Electric control box body; 2. Wind pressure sensor; 2-1. Wind pressure sensor 1; 2-2. Wind pressure sensor 2; 2-3. Wind pressure sensor 3; 2-4. Wind pressure sensor 4; 3. Low-temperature air duct; 4. Air collecting pipe; 5. Water inlet pipe; 6. Water pump; 7. Control pipe; 8. First water collecting pipe; 9. Compressor; 10. Evaporator; 11. Throttling device; 12. Condenser; 13. Oil separator; 14. Electric heating belt; 15. Low-temperature intake side. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme 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 part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, 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 plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0025] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0026] It should be understood that although the terms first, second, third, etc. may be used to describe controllers in embodiments of the present invention, these controllers should not be limited to these terms. These terms are only used to distinguish controllers connected to different devices. For example, without departing from the scope of embodiments of the present invention, a first controller may also be referred to as a second controller, and similarly, a second controller may also be referred to as a first controller.

[0027] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0028] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0029] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] In a preferred embodiment 1 of the present invention, an electric control box is provided. Specifically, Figure 1 An optional structural diagram of the electric control box is shown in FIG. Figure 1 As shown, the electric control box includes:

[0032] Electric control box body 1, electrical components located in the electric control box body 1;

[0033] The wind pressure sensor 2 is located in the electric control box body 1 and is used to detect the wind pressure in the electric control box;

[0034] The controller is connected to the wind pressure sensor 2 and is used to determine the sealing effect of the electric control box body 1 according to the wind pressure in the electric control box, and to perform early warning processing when the sealing effect is sealing failure.

[0035] In the above implementation, a protection scheme for an electric control box is provided, which is intended to warn in advance of the situation where the protection capability of the electric control box is damaged. In specific implementation, a wind pressure sensor is set in the electric control box body to detect the wind pressure in the electric control box. The controller determines the sealing effect of the electric control box body according to the wind pressure in the electric control box, and performs a warning process when the sealing effect is a failure. By adding a failure warning of the protection capability of the electric control box, the protection capability of the electric control box is detected in advance, and the electric control box is maintained in time when the protection fails, so as to avoid the failure of the electronic components in the electric control box caused by the failure of the protection of the electric control box, and improve the reliability and stability of the electric control box and its control.

[0036] In the electric control box of the present invention, the number of the wind pressure sensor 2 is at least one. Figure 1 FIG. 2 shows a case where there are multiple wind pressure sensors 2, for example, 4 wind pressure sensors 2. When there are multiple wind pressure sensors 2, the wind pressure sensors 2 are evenly distributed on the inner wall of the electric control box body 1. Figure 1 As shown, the wind pressure sensors 2 are distributed on the four inner walls of the electric control box, which can detect the wind pressure in all directions inside the electric control box, making the wind pressure data more accurate. By adding four wind pressure sensors 2 to the electric control box of the unit, the wind pressure in each place in the electric control box can be monitored, and the airtightness of the electric control box can be judged in real time by confirming the wind pressure value. When there is a leakage, maintenance and protection can be carried out in the first time.

[0037] The electric control box in the present invention is an electric control box of an air conditioning unit, that is, applied to the air conditioning unit and used to control the air conditioning unit. Figure 1As shown, it includes a compressor 9, an evaporator 10, a throttling device 11, a condenser 12, and an oil separator 13. Based on the heat exchange during the refrigerant circulation process of the above-mentioned air-conditioning unit, the electric control box also includes: a low-temperature air duct 3, one end of which is connected to the suction side of the compressor 9 of the air-conditioning unit, and the other end is connected to the electric control box, which is used to pass the low-temperature air intake on the suction side of the compressor 9 into the electric control box to cool the electric control box; a low-temperature fan 5 is arranged in the low-temperature air duct 3, which is used to accelerate the gas flow in the low-temperature air duct 3. Because the inside of the electric control box is always in a positive pressure state due to the operation of the fan, it can prevent the entry of rainwater and sand and ensure the cleanliness of the inside of the electric control box. When the air-conditioning unit is running, the cold energy is utilized to keep the components in the electric control box running at a good ambient temperature, achieving the best control effect. Specifically, when the air conditioning unit is running, the low-temperature refrigerant flowing out of the evaporator will flow into the compressor 9 through the suction pipe, be compressed, and become a high-temperature and high-pressure refrigerant gas. Therefore, the temperature of the suction side of the compressor 9 and the suction pipe connected to the compressor 9 are very low. Therefore, the present invention utilizes this part of the low temperature through the air duct and introduces it into the electric control box. Due to the IP level protection, the heating of the electrical components in the electric control box will be more serious in the closed electric control box. The high working ambient temperature of the device will cause the sensitivity of the device to decrease, or even malfunction. Therefore, the intervention of the low-temperature refrigerant will reduce the ambient temperature of the electrical components, which can help the unit to run more stably.

[0038] like Figure 1 As shown, the electric control box also includes: a high-temperature air duct 4, one end of which is connected to the oil separator 13 of the air conditioning unit, and the other end is connected to the electric control box, which is used to pass the high-temperature air intake at the oil separator 13 into the electric control box to heat the electric control box; wherein, an electric heating belt 14 is also arranged outside the oil separator 13 to heat the oil separator 13; a high-temperature fan 6 is arranged in the high-temperature air duct 4 to accelerate the gas flow in the high-temperature air duct 4. When the unit is shut down, the device no longer generates heat, the low-temperature fan 5 stops, and the high-temperature fan 6 starts. According to the control of the unit, after the unit is shut down, the oil heating starts immediately, and the heating belt continues to generate heat. Because when the ambient temperature is low, the refrigerant will dissolve into the refrigeration oil in large quantities, reducing the oil viscosity index, so the oil temperature needs to be increased to evaporate the refrigerant to ensure the lubrication effect of the oil. The heating belt heats up the oil in the compressor 9 in the oil separator 13 on one side, and heats up the surrounding air on the other side (the temperature rise of the surrounding air can be controlled by selecting the power of the heating belt). This part of the higher temperature gas is introduced into the electric control box. On the one hand, it can increase the positive pressure of the electric control box, prevent the entry of rainwater and dust, and ensure the cleanliness of the inside of the electric control box. On the other hand, if rainwater seeps into the gap, the high-temperature air can accelerate the evaporation of rainwater. In cold areas, it can also prevent the electric control box from freezing, avoid freezing and causing the electric control box door to be unable to open, and make full use of the heat of the electric heating belt 14. Through the protection and control of this structure, the electric control box can be dehydrated regularly, and it can even play a rainproof role in rainy days.

[0039] like Figure 1 As shown, the electric control box also includes: a low-temperature air inlet filter 7, which is arranged in the low-temperature air duct 3 and is used to filter the low-temperature air inlet in the low-temperature air duct 3; a high-temperature air inlet filter 8, which is arranged in the high-temperature air duct 4 and is used to filter the high-temperature air inlet in the high-temperature air duct 4. The air inlet filters of the two fans are one-way air inlet filters, which are used to filter the air entering the electric control box. The electric control box is not absolutely airtight, because the electric control box has inlet and outlet wires, door gaps, etc. As the installation and operation time of the unit increases, the line will age, the inlet hole will increase, and the door seal will also age, resulting in weakened sealing, and rainwater, dust, etc. will leak into the interior of the electric control box. In the initial leakage period, because there is positive wind pressure in the electric control box, it can prevent rain and sand, ensure the internal cleanliness of the unit, and further prevent impurities from entering the electric control box through the air inlet filter, so as to keep the interior of the electric control box clean.

[0040] In the above implementation, wind pressure sensors are first added to the electric control box of the unit to monitor the wind pressure at various locations in the electric control box. The airtightness of the electric control box is judged in real time by confirming the wind pressure value. When the leakage increases, maintenance and protection can be carried out immediately. In the initial leakage period, because there is positive wind pressure in the electric control box, it can prevent rain and sand, and ensure the internal cleanliness of the unit. When the air-conditioning unit is running, the cold on the low-pressure side is drained by the air duct, and the low-pressure cold of the unit is used to continuously cool down the components of the electric control box to ensure the operational reliability of the components in the electric control box. After the unit is shut down, the air duct is drained by the continuous heating of the electric heating belt, and the drained hot air is continuously dehydrated or de-iced at a positive pressure and high temperature to the electric control box, so as to make full use of the heat of the electric heating belt.

[0041] Example 2

[0042] In a preferred embodiment 2 of the present invention, a control method for an electric control box is provided, which is applied to the electric control box in the above embodiment 1. Specifically, Figure 2 An optional flow chart of the method is shown as follows: Figure 2 As shown, the method includes the following steps S202-S206:

[0043] S202: Detect the wind pressure in the electric control box;

[0044] S204: Determine the sealing effect of the electric control box body according to the wind pressure in the electric control box;

[0045] S206: When the sealing effect of the electric control box body fails, a warning process is performed to remind the user to perform maintenance on the electric control box body.

[0046] In the above implementation, a protection scheme for an electric control box is provided, which is intended to warn in advance of the situation where the protection capability of the electric control box is damaged. In specific implementation, a wind pressure sensor is set in the electric control box body to detect the wind pressure in the electric control box. The controller determines the sealing effect of the electric control box body according to the wind pressure in the electric control box, and performs a warning process when the sealing effect is a failure. By adding a failure warning of the protection capability of the electric control box, the protection capability of the electric control box is detected in advance, and the electric control box is maintained in time when the protection fails, so as to avoid the failure of the electronic components in the electric control box caused by the failure of the protection of the electric control box, and improve the reliability and stability of the electric control box and its control.

[0047] The above wind pressure can not only detect the sealing effect of the electric control box, but also be used to detect the dirty and blocked condition of the air inlet filter. Therefore, the above control method also includes: determining the blockage degree of the air inlet filter according to the wind pressure in the electric control box; wherein the air inlet filter includes a low-temperature air inlet filter and a high-temperature air inlet filter; the blockage degree includes at least mild blockage and severe blockage; when the blockage degree of the air inlet filter is severe blockage, early warning processing is performed to remind the user to maintain the air inlet filter. When the filter is dirty and blocked, it not only cannot play a filtering effect, but also causes the air intake effect of the air duct to deteriorate. Therefore, the filter is maintained in time to optimize the heat exchange effect of the electric control box.

[0048] Before detecting the wind pressure in the electric control box, it also includes: in the initial operation stage of the electric control box, controlling the low-temperature fan or the high-temperature fan to turn on; obtaining the wind pressure in the electric control box, and determining the preset wind pressure according to the wind pressure in the electric control box, wherein, when the wind pressure in the electric control box includes multiple, the preset wind pressure is the average of the wind pressures in multiple electric control boxes; after the running time of the electric control box reaches the preset time, triggering the detection of the wind pressure in the electric control box. The wind pressure monitoring process first starts the low-temperature fan or the high-temperature fan normally and stably after the unit is assembled, and then performs pressure detection, such as Figure 1 As shown, the pressures at four locations are recorded as P1, P2, P3, and P4, respectively. The initial pressure, i.e., the preset wind pressure, is determined based on the detected pressure. The preset wind pressure is the wind pressure at which the protection of the electric control box does not fail.

[0049] After determining the preset wind pressure, determine the sealing effect of the electric control box body according to the wind pressure in the electric control box, or determine the blockage degree of the air inlet filter according to the wind pressure in the electric control box, including: detecting whether the wind pressure meets the preset conditions; wherein the preset conditions include at least one of the following: any wind pressure is less than or equal to the product of the preset wind pressure and the preset ratio, the wind pressure is in a decreasing trend and the average wind pressure is less than or equal to the product of the preset wind pressure and the preset ratio; if so, determine that the sealing effect of the electric control box body is a seal failure or the blockage degree of the air inlet filter is a serious blockage; otherwise, determine that the sealing effect of the electric control box body is a seal that has not failed or the blockage degree of the air inlet filter is a slight blockage. As the installation and operation time of the unit increases, the line will age, the inlet hole will increase, and the door seal will also age, resulting in weakened sealing, and the pressure value detected by the pressure sensor will decrease accordingly. When it is detected that the pressures at the four locations are all decreasing, and any pressure is ≤a%×P (a is a settable value, greater than 1 and less than 100, and P is the preset pressure), or the average pressure is ≤a%×P, it is judged that the seal has failed or the filter is seriously blocked, and the unit sends a warning to the monitoring, and the operator conducts an on-site inspection. When the pressure in the electric control box is between (a%~100%)×P, the inside of the electric control box is always in a positive pressure state because of the operation of the fan, which can prevent the entry of rainwater, sand and dust, and ensure the cleanliness of the inside of the electric control box.

[0050] In addition to monitoring wind pressure leakage, the control scheme of the electric control box of the present invention also provides multiple protections for the electric control box by draining low-temperature air inlet to ensure operation and draining water from high-temperature air inlet during shutdown.

[0051] Specifically, the temperature parameters in the electric control box are detected; the temperature environment in the electric control box is determined according to the temperature parameters; wherein the temperature environment at least includes: a high temperature environment and a low temperature environment; when the temperature environment is a high temperature environment, the low temperature fan is controlled to be turned on; when the temperature environment is a low temperature environment, the high temperature fan is controlled to be turned on, or, the high temperature fan and the electric heating belt are controlled to be turned on.

[0052] When the air conditioning unit is running, the low-temperature refrigerant flowing out of the evaporator will flow into the compressor through the suction pipe, be compressed, and become a high-temperature and high-pressure refrigerant gas. Therefore, the temperature of the suction side of the compressor and the suction pipe connected to the compressor are very low. Therefore, the present invention utilizes this part of the low temperature through the air duct and introduces it into the electric control box. The electrical components in the electric control box will heat up more seriously in the closed electric control box due to the IP level protection. The high ambient temperature of the device will cause the sensitivity of the device to decrease, or even malfunction. Therefore, the intervention of low-temperature refrigerant will reduce the ambient temperature of the electrical components, which can help the unit run more stably.

[0053] When the unit is shut down, the device no longer generates heat, the low-temperature fan stops, and the high-temperature fan starts. According to the unit control, after the unit is shut down, the oil heating starts immediately, and the heating belt continues to generate heat. Because when the ambient temperature is low, a large amount of refrigerant will dissolve into the refrigeration oil, reducing the oil viscosity index, so the oil temperature needs to be increased to evaporate the refrigerant to ensure the lubrication of the oil. The heating belt heats up the compressor oil in the oil separator on one side, and also heats up the surrounding air on the other side (the temperature rise of the surrounding air can be controlled by the power selection of the heating belt). This part of the higher temperature gas is introduced into the electric control box. On the one hand, it can increase the positive pressure of the electric control box, prevent the entry of rain and dust, and ensure the cleanliness of the inside of the electric control box. On the other hand, if rainwater seeps into the gap, the high-temperature air can accelerate the evaporation of rainwater. In cold areas, it can also prevent the electric control box from freezing, avoid freezing and causing the electric control box door to be unable to open, and make full use of the heat of the electric heating belt.

[0054] Example 3

[0055] Based on the electric control box provided in the above-mentioned embodiment 1, in a preferred embodiment 3 of the present invention, an air-conditioning unit is further provided, comprising the above-mentioned electric control box, for realizing control of the air-conditioning unit.

[0056] In the above implementation, a protection scheme for an electric control box is provided, which is intended to warn in advance of the situation where the protection capability of the electric control box is damaged. In specific implementation, a wind pressure sensor is set in the electric control box body to detect the wind pressure in the electric control box. The controller determines the sealing effect of the electric control box body according to the wind pressure in the electric control box, and performs a warning process when the sealing effect is a failure. By adding a failure warning of the protection capability of the electric control box, the protection capability of the electric control box is detected in advance, and the electric control box is maintained in time when the protection fails, so as to avoid the failure of the electronic components in the electric control box caused by the failure of the protection of the electric control box, and improve the reliability and stability of the electric control box and its control.

[0057] Example 4

[0058] Based on the electric control box control method provided in the above embodiment 2, a storage medium containing computer executable instructions is also provided in a preferred embodiment 4 of the present invention. When the computer executable instructions are executed by a computer processor, they are used to execute the electric control box control method as described above.

[0059] In the above implementation, a protection scheme for an electric control box is provided, which is intended to warn in advance of the situation where the protection capability of the electric control box is damaged. In specific implementation, a wind pressure sensor is set in the electric control box body to detect the wind pressure in the electric control box. The controller determines the sealing effect of the electric control box body according to the wind pressure in the electric control box, and performs a warning process when the sealing effect is a failure. By adding a failure warning of the protection capability of the electric control box, the protection capability of the electric control box is detected in advance, and the electric control box is maintained in time when the protection fails, so as to avoid the failure of the electronic components in the electric control box caused by the failure of the protection of the electric control box, and improve the reliability and stability of the electric control box and its control.

[0060] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0061] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0062] In the several embodiments provided in this 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 schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. 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 mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0063] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0064] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, 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 software functional units.

[0065] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this 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 can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0066] Those skilled in the art will readily appreciate 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 knowledge or customary techniques in the art that are not invented by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0067] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An electric control box, characterized in that: include: An electric control box body, and electrical components located inside the electric control box body; A wind pressure sensor is located in the electric control box and is used to detect the wind pressure in the electric control box; The controller is connected to the wind pressure sensor and is used to determine the sealing effect of the electric control box body according to the wind pressure in the electric control box, and to perform early warning processing when the sealing effect is a sealing failure.

2. The electric control box according to claim 1, characterized in that: The number of the wind pressure sensor is at least one. When there are multiple wind pressure sensors, the wind pressure sensors are evenly distributed on the inner wall of the electric control box body.

3. The electric control box according to claim 1, characterized in that: The electric control box is an electric control box of an air conditioning unit, and the electric control box also includes: A low-temperature air duct, one end of which is connected to the air intake side of the compressor of the air conditioning unit, and the other end of which is connected to the electric control box, for passing the low-temperature air intake of the air intake side of the compressor into the electric control box to cool the electric control box; The low-temperature fan is arranged in the low-temperature air duct and is used to accelerate the gas flow in the low-temperature air duct.

4. The electric control box according to claim 3, characterized in that: Also includes: A high-temperature air duct, one end of which is connected to the oil separator of the air-conditioning unit, and the other end of which is connected to the electric control box, for passing the high-temperature air from the oil separator into the electric control box to increase the temperature of the electric control box; wherein an electric heating belt is also provided on the outside of the oil separator for heating the oil separator; The high temperature fan is arranged in the high temperature air duct and is used to accelerate the gas flow in the high temperature air duct.

5. The electric control box according to claim 4, characterized in that: Also includes: A low-temperature air inlet filter is arranged in the low-temperature air duct and is used to filter the low-temperature air in the low-temperature air duct; The high-temperature air inlet filter is arranged in the high-temperature air duct and is used for filtering the high-temperature air inlet in the high-temperature air duct.

6. A control method for an electric control box, applied to the electric control box as claimed in any one of claims 1 to 5, characterized in that: The method comprises: Detecting the wind pressure in the electric control box; Determining the sealing effect of the electric control box body according to the wind pressure in the electric control box; When the sealing effect of the electric control box body fails, an early warning process is performed to remind the user to maintain the electric control box body.

7. The method according to claim 6, characterized in that Also includes: Determine the blockage degree of the air inlet filter according to the wind pressure in the electric control box; wherein the air inlet filter includes a low-temperature air inlet filter and a high-temperature air inlet filter; the blockage degree includes at least mild blockage and severe blockage; When the air inlet filter is severely clogged, an early warning process is performed to remind the user to maintain the air inlet filter.

8. The method according to claim 7, characterized in that Before detecting the wind pressure in the electric control box, the method further includes: During the initial operation stage of the electric control box, the low-temperature fan or the high-temperature fan is controlled to be turned on; Obtaining the wind pressure in the electric control box, and determining a preset wind pressure according to the wind pressure in the electric control box, wherein when there are multiple wind pressures in the electric control box, the preset wind pressure is an average value of the wind pressures in the multiple electric control boxes; After the running time of the electric control box reaches a preset time, the wind pressure detection in the electric control box is triggered.

9. The method according to claim 8, characterized in that Determining the sealing effect of the electric control box body according to the wind pressure in the electric control box, or determining the blocking degree of the air inlet filter according to the wind pressure in the electric control box, including: Detecting whether the wind pressure meets a preset condition; wherein the preset condition includes at least one of the following: any of the wind pressures is less than or equal to the product of the preset wind pressure and the preset ratio, the wind pressure is in a decreasing trend, and the average value of the wind pressure is less than or equal to the product of the preset wind pressure and the preset ratio; If yes, it is determined that the sealing effect of the electric control box body is sealing failure or the blockage degree of the air inlet filter is serious blockage; Otherwise, it is determined that the sealing effect of the electric control box body is that the sealing has not failed or the blockage degree of the air inlet filter is slightly blocked.

10. The method according to claim 6, characterized in that Also includes: Detecting temperature parameters in the electric control box; Determine the temperature environment in the electric control box according to the temperature parameter; wherein the temperature environment at least includes: a high temperature environment and a low temperature environment; When the temperature environment is the high temperature environment, controlling the low temperature fan to turn on; When the temperature environment is the low temperature environment, the high temperature fan is controlled to be turned on, or the high temperature fan and the electric heating belt are controlled to be turned on.

11. An air conditioning unit, characterized in that: It comprises an electric control box as claimed in any one of claims 1 to 5.

12. A storage medium containing computer executable instructions, characterized in that: The computer executable instructions are used to execute the electric control box control method according to any one of claims 6 to 10 when executed by a computer processor.

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