Variable flow diverter, air cooler system and variable flow diverter control method

Abstract

The invention discloses a variable flow divider, an air cooler system and a variable flow divider control method.The variable flow divider comprises a divider body, a plurality of independent liquid dividing channels are arranged in the divider body, and a movable metal sliding core is arranged in each liquid dividing channel; the metal sliding core is connected with a reset piece arranged in the liquid separation channel; a plurality of groups of electromagnetic coils are further arranged in the flow divider main body, the plurality of groups of electromagnetic coils are independent, and the electromagnetic coils are used for driving the corresponding metal sliding cores to move in the liquid dividing channels. According to the air cooler system, the movable metal sliding core is arranged in the liquid separation channel, the refrigerant flow can be adjusted through movement of the metal sliding core, then the refrigerant flow of the corresponding evaporator is adjusted, liquid separation of all branches is homogenized, the heat exchange efficiency of the evaporator is improved, energy consumption is reduced, the problems of frosting and the like are effectively avoided, and the use effect of the air cooler system is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air cooler systems, in particular to a variable flow diverter, an air cooler system and a variable flow diverter control method. BACKGROUND

[0002] In an air cooler system, uniform distribution of refrigerant is a key factor affecting the heat exchange efficiency of the evaporator.

[0003] In the actual application of an air cooler system, due to the installation position, length, resistance difference of each branch of the evaporator, and external environmental temperature changes and other factors, the refrigerant distribution of the air cooler system is prone to be uneven, causing the refrigerant flow of some evaporator branches to be too large or too small, thereby causing problems such as heat exchange efficiency reduction, energy consumption increase and local frosting; however, the existing air cooler systems mostly use static diverters, that is, the structure of the liquid distribution channel is fixed and cannot be dynamically adjusted according to the actual operating conditions, so that the air cooler system cannot adjust the refrigerant flow of the evaporator branches when the refrigerant distribution is uneven, affecting the use effect of the air cooler system, reducing the practicality of the air cooler system, and making it difficult to apply the air cooler system to high-precision temperature control scenes (for example, low-temperature cold storage). SUMMARY

[0004] The purpose of the present application is to provide a variable flow diverter, an air cooler system and a variable flow diverter control method, which sets a movable metal sliding core in the liquid distribution channel, adjusts the refrigerant flow by moving the metal sliding core, and then adjusts the refrigerant flow of the corresponding evaporator, so that the liquid distribution of each branch is uniform, the heat exchange efficiency of the evaporator is improved, the energy consumption is reduced, the problems such as frosting are effectively avoided, and the use effect of the air cooler system is ensured.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the present application provides a variable flow diverter, comprising a diverter main body, a plurality of independent liquid distribution channels are arranged in the diverter main body, a movable metal sliding core is arranged in each liquid distribution channel, and the metal sliding core is connected with a reset member arranged in the liquid distribution channel. A plurality of groups of electromagnetic coils are further arranged in the diverter main body, the groups of electromagnetic coils are independent, and the electromagnetic coils are used to drive the corresponding metal sliding core to move in the liquid distribution channel.

[0006] In a preferred embodiment of the present application, the reset member is a reset spring, one end of the reset spring is connected to the diverter main body, and the other end of the reset spring is connected to the metal sliding core.

[0007] In a preferred embodiment of the present application, the top end of the metal sliding core gradually decreases towards the bottom end of the metal sliding core, and the cross section of the metal sliding core is in the shape of a right-angled trapezoid.

[0008] In a preferred embodiment of the present application, a plurality of coil placement positions are provided in the flow divider body, and an electromagnetic coil is arranged at one of the coil placement positions.

[0009] In a second aspect, the present application provides a cooling fan system using the variable flow flow divider described above.

[0010] In a third aspect, the present application provides a variable flow flow divider control method, wherein the variable flow flow divider is the variable flow flow divider described above, and the control method comprises: obtaining an actual refrigerant flow rate of a target branch outlet of a condenser; calculating a required sliding displacement of a corresponding metal sliding core in the variable flow flow divider according to the actual refrigerant flow rate and a diameter of an air conditioner pipeline; calculating a required working current of a corresponding electromagnetic coil in the variable flow flow divider according to the required sliding displacement of the corresponding metal sliding core; adjusting the working current of the corresponding electromagnetic coil according to the required working current of the corresponding electromagnetic coil.

[0011] In a preferred embodiment of the present application, the calculation of the required sliding displacement of the corresponding metal sliding core in the variable flow flow divider according to the actual refrigerant flow rate and the diameter of the air conditioner pipeline comprises: obtaining a matching target refrigerant flow rate from a pre-constructed refrigerant adjustment database according to a set target control temperature; calculating a refrigerant flow rate difference according to the actual refrigerant flow rate and the target refrigerant flow rate; calculating a refrigerant flow velocity of the air conditioner pipeline according to the diameter of the air conditioner pipeline; calculating the required sliding displacement of the corresponding metal sliding core in the variable flow flow divider according to the refrigerant flow rate difference and the refrigerant flow velocity.

[0012] In a preferred embodiment of the present application, the calculation of the refrigerant flow velocity of the air conditioner pipeline according to the diameter of the air conditioner pipeline comprises: calculating a cross-sectional area of the air conditioner pipeline according to the diameter of the air conditioner pipeline; calculating the refrigerant flow velocity of the air conditioner pipeline according to the actual refrigerant flow rate and the cross-sectional area of the air conditioner pipeline.

[0013] In a preferred embodiment of the present application, the calculation of the required sliding displacement of the corresponding metal sliding core in the variable flow flow divider according to the refrigerant flow rate difference and the refrigerant flow velocity comprises: calculating a displacement compensation area of the corresponding metal sliding core in the variable flow flow divider according to the refrigerant flow rate difference and the refrigerant flow velocity; According to the displacement compensation area of the corresponding metal slide core, the required sliding displacement of the corresponding metal slide core is calculated.

[0014] In the preferred embodiment of the present application, when the required operating current of the corresponding electromagnetic coil in the variable flow diverter is calculated according to the required sliding displacement of the corresponding metal slide core, it is calculated by the following formula: ; Where I is the required operating current of the corresponding electromagnetic coil in the variable flow diverter, K is the electromagnetic coefficient, Δx is the required sliding displacement of the corresponding metal slide core, k is the stiffness of the reset member, P is the refrigerant pressure value obtained at the front end of the variable flow diverter, and S is the front end area of the corresponding metal slide core.

[0015] The variable flow diverter, air cooler system and variable flow diverter control method of the present application have at least the following beneficial effects compared with the prior art: The variable flow diverter of the present application is provided with a plurality of independent distribution channels in the diverter body, a movable metal slide core is arranged in each distribution channel, the metal slide core is connected with a reset member arranged in the distribution channel, and the reset member can reset the metal slide core to the initial position. The diverter body is also provided with a plurality of groups of electromagnetic coils, the groups of electromagnetic coils are independent, and the electromagnetic coils are used to drive the corresponding metal slide core to move in the distribution channel. The present application is provided with a movable metal slide core in the distribution channel, which can adjust the refrigerant flow of the distribution channel through the movement of the metal slide core, and further adjust the refrigerant flow of the corresponding evaporator, so that the distribution of each branch is uniformized. This can improve the heat exchange efficiency of the evaporator, reduce energy consumption, effectively avoid frosting and other problems, and also enhance the operation stability of the air cooler system, ensure the use effect of the air cooler system, and improve the practicality of the air cooler system.

[0016] The air cooler system of the present application applies the above-mentioned variable flow diverter, so that the refrigerant flow of each branch evaporator can be adjusted, the distribution of each branch is uniformized, the heat exchange efficiency of the evaporator is improved, the energy consumption is reduced, frosting and other problems are effectively avoided, the operation stability of the air cooler system is enhanced, the use effect of the air cooler system is ensured, the practicality of the air cooler system is improved, and the air cooler system of the present application can be well applied to high-precision temperature control scenes (for example, low-temperature cold storage).

[0017] The variable flow diverter control method of the application calculates the required sliding displacement of the corresponding metal sliding core in the variable flow diverter through the obtained actual refrigerant flow of the target branch outlet of the condenser and the diameter of the air conditioning pipeline, and further calculates the required working current of the corresponding electromagnetic coil in the variable flow diverter, so as to adjust the working current of the corresponding electromagnetic coil, make the magnetic field of the corresponding electromagnetic coil change, drive the corresponding metal sliding core to produce the required sliding displacement. In this way, the movement of the metal sliding core and the refrigerant flow can be more accurately adjusted, so that the refrigerant flow of the corresponding evaporator can be more accurately adjusted, the liquid distribution of each branch is uniformized, and thus the evaporator heat exchange efficiency can be improved, the energy consumption can be reduced, and problems such as frosting can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments of the application. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 is a top view structural schematic diagram of the variable flow diverter provided by the embodiments of the application; Figure 2 is a partial cross-sectional structural schematic diagram of the variable flow diverter provided by the embodiments of the application; Figure 3 is a cross-sectional structural schematic diagram of the variable flow diverter provided by the embodiments of the application; Figure 4 is a A-A cross-sectional structural schematic diagram of Figure 3 ; Figure 5 is a structural schematic diagram of the cold air machine system provided by the embodiments of the application; Figure 6 is a flow schematic diagram of the variable flow diverter control method provided by the embodiments of the application; Figure 7 is a flow schematic diagram of step S120 provided by the embodiments of the application.

[0020] Reference signs: 11, diverter main body; 111, liquid distribution channel; 12, metal sliding core; 13, return spring; 14, electromagnetic coil. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0022] In the present application, the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are based on the orientations or positional relationships shown in the drawings. These terms are mainly used for better describing the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0023] In addition, the above-mentioned partial terms can be used to represent other meanings in addition to the orientation or positional relationship, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in the present application according to the specific circumstances.

[0024] In addition, the terms "mount", "set", "provided with", "connect", "connected" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or a monolithic structure; it can be a mechanical connection, or a point connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. Those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0025] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0026] The existing cold air machine system mostly adopts a static flow divider, that is, the structure of the liquid distribution channel is fixed and cannot be dynamically adjusted according to the actual operation condition. When the refrigerant distribution is uneven, the cold air machine system is difficult to adjust the refrigerant flow of the evaporator branch, which affects the use effect of the cold air machine system, reduces the practicability of the cold air machine system, and makes the cold air machine system difficult to be applied to high-precision temperature control scenes (for example, low-temperature cold storage).

[0027] In view of the problems in the prior art, the embodiment of the present application provides a variable flow divider, a cold air machine system and a variable flow divider control method. The variable flow divider is provided with a movable metal sliding core in the liquid distribution channel. The refrigerant flow can be adjusted by moving the metal sliding core, and then the refrigerant flow of the corresponding evaporator is adjusted, so that the liquid distribution of each branch is uniformized, the evaporator heat exchange efficiency is improved, the energy consumption is reduced, the problems such as frosting are effectively avoided, and the use effect of the cold air machine system is ensured.

[0028] Embodiment one Referring to Figures 1 to 4 The variable flow divider of the embodiment of the present application comprises a flow divider body 11, a plurality of independent liquid distribution channels 111 are arranged in the flow divider body 11, a movable metal sliding core 12 is arranged in each liquid distribution channel 111, and the metal sliding core 12 is connected with a reset member arranged in the liquid distribution channel 111. A plurality of groups of electromagnetic coils 14 are further arranged in the flow divider body 11, the groups of electromagnetic coils 14 are independent, and the electromagnetic coils 14 are used to drive the corresponding metal sliding core 12 to move in the liquid distribution channel 111.

[0029] In the embodiment, the plurality of liquid distribution channels 111 arranged in the flow divider body 11 are distributed in a ring shape, and the plurality of liquid distribution channels 111 are inclined with the outer wall of the flow divider body 11. In the embodiment, the metal sliding core 12 arranged in each liquid distribution channel 111 can move in the liquid distribution channel 111. The refrigerant flow of the liquid distribution channel 111 can be adjusted by moving the metal sliding core 12 in the liquid distribution channel 111, that is, the refrigerant flow of the evaporator branch in the cold air machine system can be adjusted. In the embodiment, the reset member is a reset spring 13, one end of the reset spring 13 is connected to the flow divider body 11, and the other end of the reset spring 13 is connected to the metal sliding core 12. The reset member can reset the metal sliding core 12, so that the metal sliding core 12 returns to the initial position. The reset spring 13 can better reset the metal sliding core 12.

[0030] In the embodiment, the multiple groups of electromagnetic coils 14 are independent, and one group of electromagnetic coils 14 is used to drive the corresponding metal sliding core 12 to move in the distribution channel 111. The metal sliding core 12 can be moved in the corresponding displacement in the distribution channel 111 by changing the magnetic field of the electromagnetic coil 14, and the moving direction of the metal sliding core 12 in the distribution channel 111 can also be adjusted by changing the magnetic field of the electromagnetic coil 14.

[0031] The variable flow distributor of the embodiment can adjust the refrigerant flow of the distribution channel 111 by moving the metal sliding core 12, and then adjust the refrigerant flow of the corresponding evaporator, so that the distribution of each branch is uniformized, which can improve the heat exchange efficiency of the evaporator, reduce the energy consumption, effectively avoid the problem of frosting, and also enhance the operation stability of the air cooler system, protect the use effect of the air cooler system, and improve the practicality of the air cooler system.

[0032] In the embodiment, the top end of the metal sliding core 12 gradually decreases to the bottom end of the metal sliding core 12, and the cross section of the metal sliding core 12 is in a right trapezoidal shape.

[0033] In the above structure, the metal sliding core 12 with the structure can better adjust the refrigerant flow of the distribution channel 111 after moving, and then more effectively and quickly adjust the refrigerant flow of the distribution channel 111.

[0034] As preferred, in the embodiment, the distributor body 11 is provided with multiple coil placement positions (not shown in the figure), and one electromagnetic coil 14 is arranged at one coil placement position.

[0035] In the above structure, the coil placement position can facilitate the arrangement of the electromagnetic coil 14 in the distributor body 11, and the multiple coil placement positions are independent, which can better make the multiple groups of electromagnetic coils 14 independent, so as to better avoid the mutual interference of different groups of electromagnetic coils 14.

[0036] Embodiment two Referring to Figures 1 to 5 The embodiment provides an air cooler system which applies the variable flow distributor of the above-mentioned embodiment one.

[0037] In the embodiment, the air cooler system is an air cooler system applied to a low-temperature cold storage.

[0038] The cold air machine system of the embodiment of the present application applies the variable flow flow divider described above, so that the refrigerant flow of each branch evaporator (not shown in the figure) can be adjusted, the liquid distribution of each branch is uniformized, the evaporator heat exchange efficiency is improved, the energy consumption is reduced, the problems such as frosting are effectively avoided, the operation stability of the cold air machine system can be enhanced, the use effect of the cold air machine system is ensured, the practicality of the cold air machine system is improved, and the cold air machine system of the present application can be well applied to high-precision temperature control scenes (for example, low-temperature cold storage).

[0039] Embodiment three Referring to Figure 6 , Figure 6 is a flowchart of a variable flow flow divider control method provided by the embodiment of the present application.

[0040] The variable flow flow divider control method described below in the embodiment of the present application can be applied to the cold air machine system of embodiment two described above. Specifically, the variable flow flow divider control method can be applied to the control device of the cold air machine system of embodiment two described above. The control device can be used to adjust the refrigerant flow of each liquid distribution channel in the variable flow flow divider. The variable flow flow divider is the variable flow flow divider of embodiment one described above.

[0041] The embodiment of the present application provides a variable flow flow divider control method, which comprises the following steps: Step S110: obtaining the actual refrigerant flow of the target branch outlet of the condenser.

[0042] In the embodiment, the actual refrigerant flow of the target branch outlet of the condenser can be obtained by a flow sensor.

[0043] Step S120: calculating the required sliding displacement of the corresponding metal sliding core in the variable flow flow divider according to the actual refrigerant flow and the diameter of the air conditioner pipeline.

[0044] In the embodiment, the diameter of the air conditioner pipeline can be obtained according to the corresponding parameters of the cold air machine system. The diameter of the air conditioner pipeline is extracted from the corresponding parameters of the cold air machine system. The required sliding displacement of the corresponding metal sliding core in the variable flow flow divider refers to the required sliding displacement of the corresponding metal sliding core in the variable flow flow divider at the current position. The refrigerant flow of the corresponding liquid distribution channel can be adjusted by the sliding displacement of the corresponding metal sliding core.

[0045] Step S130: calculating the required working current of the corresponding electromagnetic coil in the variable flow flow divider according to the required sliding displacement of the corresponding metal sliding core.

[0046] In this embodiment, adjusting the required operating current of the electromagnetic coil can adjust the magnetic field strength of the electromagnetic coil, causing a change in the magnetic field of the electromagnetic coil. This, in turn, allows the corresponding metal sliding core to move according to the required sliding displacement, thereby achieving accurate adjustment of the refrigerant flow rate of the corresponding liquid distribution channel.

[0047] Step S140: Adjust the operating current of the corresponding electromagnetic coil according to the required operating current of the corresponding electromagnetic coil.

[0048] In this embodiment, after adjusting the operating current of the corresponding electromagnetic coil according to the required operating current of the corresponding electromagnetic coil, the corresponding metal sliding core will move according to the required sliding displacement.

[0049] The variable flow splitter control method of this application calculates the required sliding displacement of the corresponding metal core in the variable flow splitter by obtaining the actual refrigerant flow rate at the target branch outlet of the condenser and the diameter of the air conditioning pipe. Then, it calculates the required operating current of the corresponding electromagnetic coil in the variable flow splitter and adjusts the operating current of the corresponding electromagnetic coil to change the magnetic field of the corresponding electromagnetic coil, thereby driving the corresponding metal core to produce the required sliding displacement. This can more accurately realize the movement of the metal core and the adjustment of the refrigerant flow rate, thereby more accurately adjusting the refrigerant flow rate of the corresponding evaporator, making the liquid distribution in each branch more uniform. This can improve the heat exchange efficiency of the evaporator, reduce energy consumption, and effectively avoid problems such as frosting.

[0050] See Figure 7 , Figure 7 This is a flowchart illustrating step S120 provided in an embodiment of this application.

[0051] Preferably, in this embodiment, step S120, calculating the required sliding displacement of the corresponding metal core in the variable flow distributor based on the actual refrigerant flow rate and the diameter of the air conditioning pipe, may include the following steps: Step S121: Based on the set target temperature, obtain the matching target refrigerant flow rate from the pre-built refrigerant regulation database; Step S122: Calculate the refrigerant flow difference based on the actual refrigerant flow rate and the target refrigerant flow rate; Step S123: Calculate the refrigerant flow rate of the air conditioning pipes based on their diameter. Step S124: Calculate the required sliding displacement of the corresponding metal core in the variable flow distributor based on the refrigerant flow difference and refrigerant velocity.

[0052] In this embodiment, the set target control temperature can be a user-defined target control temperature, specifically a user-defined cooling temperature or heating temperature. Based on the user-defined cooling temperature or heating temperature, a matching target refrigerant flow rate can be obtained from a pre-built refrigerant control database to directly and quickly determine the required target refrigerant flow rate.

[0053] In this embodiment, when calculating the refrigerant flow difference based on the actual refrigerant flow rate and the target refrigerant flow rate, it can be calculated using the following formula: ; in, This is the difference in refrigerant flow rate. For the target refrigerant flow rate, This represents the actual refrigerant flow rate.

[0054] In this embodiment, when calculating the refrigerant flow rate of the air conditioning pipe based on its diameter, the following may be included: The cross-sectional area of ​​the air conditioning pipes is calculated based on their diameter. The refrigerant velocity in the air conditioning pipes is calculated based on the actual refrigerant flow rate and the cross-sectional area of ​​the air conditioning pipes.

[0055] When calculating the cross-sectional area of ​​the air conditioning pipes based on their diameter, the following formula can be used: ; in, Let D be the cross-sectional area of ​​the air conditioning pipe and D be the diameter of the air conditioning pipe.

[0056] When calculating the refrigerant velocity in an air conditioning system based on the actual refrigerant flow rate and the cross-sectional area of ​​the air conditioning pipes, the following formula can be used: ; in, This refers to the cross-sectional area of ​​the air conditioning pipes. is the actual refrigerant flow rate, and v is the refrigerant velocity in the air conditioning pipes.

[0057] In this embodiment, calculating the required sliding displacement of the corresponding metal core in the variable flow distributor based on the refrigerant flow rate difference and refrigerant velocity may include: Based on the refrigerant flow rate difference and refrigerant velocity, the displacement compensation area of ​​the corresponding metal sliding core in the variable flow splitter is calculated. The required sliding displacement of the corresponding metal slide core is calculated based on the displacement compensation area of ​​the corresponding metal slide core.

[0058] When calculating the displacement compensation area of ​​the corresponding metal sliding core in the variable flow distributor based on the refrigerant flow rate difference and refrigerant velocity, the following calculation formula can be used: ; in, This represents the displacement compensation area of ​​the corresponding metal sliding core. denoted as the refrigerant flow difference, where v is the refrigerant velocity in the air conditioning pipes.

[0059] When calculating the required sliding displacement of the corresponding metal sliding core based on its displacement compensation area, the following formula can be used: ; in, The cross-sectional area of ​​the corresponding liquid distribution channel branch after compensation. This represents the required sliding displacement of the corresponding metal sliding core; ; in, To compensate for the cross-sectional area of ​​the branch of the corresponding liquid distribution channel before. This represents the displacement compensation area of ​​the corresponding metal sliding core.

[0060] In the above calculation process, through The cross-sectional area of ​​the branch of the liquid distribution channel after compensation can be calculated, and then the required sliding displacement of the corresponding metal core can be calculated. .

[0061] Preferably, in this embodiment, when calculating the required operating current of the corresponding electromagnetic coil in the variable flow shunt based on the required sliding displacement of the corresponding metal sliding core, the required operating current can be calculated using the following formula: ; Where I is the required operating current of the corresponding electromagnetic coil in the variable flow splitter, K is the electromagnetic coefficient, Δx is the required sliding displacement of the corresponding metal slide core, k is the stiffness of the reset element, i.e., the stiffness of the reset spring, P is the refrigerant pressure value obtained at the front end of the variable flow splitter, which can be obtained through a pressure sensor, and S is the front end area of ​​the corresponding metal slide core; in the above calculation formula, The spring force of the reset spring is indicated by , and PS represents the refrigerant pressure at the inlet of the variable flow splitter.

[0062] Using the above method, various relevant parameters can be calculated with great accuracy, thereby enabling the calculation of the required operating current of the corresponding electromagnetic coil in the variable flow divider, ensuring precise adjustment of the displacement of the corresponding metal slip core.

[0063] In all the above embodiments, "large" and "small" are relative terms, "more" and "less" are relative terms, and "upper" and "lower" are relative terms. The embodiments of this application will not elaborate further on the expression of such relative terms.

[0064] It should be understood that phrases such as "in one embodiment," "in this embodiment," "in this application embodiment," or "as an optional implementation" throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, phrases such as "in one embodiment," "in this embodiment," "in this application embodiment," or "as an optional implementation" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0065] In the various embodiments of this application, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0066] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. A variable flow splitter, characterized in that, The device includes a main body of a distributor, which has multiple independent liquid distribution channels. Each liquid distribution channel has a movable metal slide core, which is connected to a reset member disposed in the liquid distribution channel. The main body of the distributor is also provided with multiple sets of electromagnetic coils, which are independent of each other. The electromagnetic coils are used to drive the corresponding metal sliding core to move in the liquid distribution channel.

2. The variable flow splitter according to claim 1, characterized in that, The reset component is a reset spring, one end of which is connected to the main body of the shunt, and the other end of which is connected to the metal slide core.

3. The variable flow splitter according to claim 1, characterized in that, The metal slide core gradually decreases in size from its top to its bottom, and the cross-section of the metal slide core is a right trapezoid.

4. The variable flow splitter according to claim 1, characterized in that, The main body of the shunt has multiple coil placement positions, and one of the electromagnetic coils is located at one of the coil placement positions.

5. A cold air blower system, characterized in that, The variable flow splitter as described in any one of claims 1-4 is applied.

6. A control method for a variable flow splitter, characterized in that, The variable flow splitter is the variable flow splitter as described in any one of claims 1-4, and the control method includes: Obtain the actual refrigerant flow rate at the target branch outlet of the condenser; Based on the actual refrigerant flow rate and the diameter of the air conditioning pipe, the required sliding displacement of the corresponding metal core in the variable flow distributor is calculated. Based on the required sliding displacement of the corresponding metal sliding core, the required operating current of the corresponding electromagnetic coil in the variable flow divider is calculated. Adjust the operating current of the corresponding electromagnetic coil according to the required operating current of the corresponding electromagnetic coil.

7. The variable flow splitter control method according to claim 6, characterized in that, The step of calculating the required sliding displacement of the corresponding metal core in the variable flow distributor based on the actual refrigerant flow rate and the diameter of the air conditioning pipe includes: Based on the set target temperature, the target refrigerant flow rate is obtained from the pre-built refrigerant regulation database; The refrigerant flow difference is calculated based on the actual refrigerant flow rate and the target refrigerant flow rate. The refrigerant flow rate of the air conditioning pipes is calculated based on their diameter. Based on the refrigerant flow rate difference and the refrigerant flow velocity, the required sliding displacement of the corresponding metal core in the variable flow distributor is calculated.

8. The variable flow splitter control method according to claim 7, characterized in that, The calculation of the refrigerant flow velocity in the air conditioning pipes based on their diameter includes: The cross-sectional area of ​​the air conditioning pipes is calculated based on their diameter. The refrigerant velocity of the air conditioning pipe is calculated based on the actual refrigerant flow rate and the cross-sectional area of ​​the air conditioning pipe.

9. The variable flow splitter control method according to claim 7, characterized in that, The step of calculating the required sliding displacement of the corresponding metal core in the variable flow distributor based on the refrigerant flow rate difference and the refrigerant flow velocity includes: Based on the refrigerant flow rate difference and the refrigerant flow velocity, the displacement compensation area of ​​the corresponding metal sliding core in the variable flow splitter is calculated. The required sliding displacement of the corresponding metal slide core is calculated based on the displacement compensation area of ​​the corresponding metal slide core.

10. The variable flow splitter control method according to claim 6, characterized in that, When calculating the required operating current of the corresponding electromagnetic coil in the variable flow divider based on the required sliding displacement of the corresponding metal sliding core, the following calculation formula is used: ； Wherein, I is the required operating current of the corresponding electromagnetic coil in the variable flow splitter, K is the electromagnetic coefficient, Δx is the required sliding displacement of the corresponding metal slide core, k is the stiffness of the reset component, P is the refrigerant pressure value obtained at the front end of the variable flow splitter, and S is the front end area of ​​the corresponding metal slide core.

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