EC fan experiment equipment and temperature control method

Abstract

The invention discloses EC fan experiment equipment and a temperature control method, and belongs to the field of experiment equipment. The EC fan experiment equipment comprises a room body; one end of the air inlet pipe is positioned in the room body; the first air inlets and the second air inlets are formed in the two sides of one end of the air inlet pipe respectively, the areas, corresponding to the first air inlets, in the room body are configured to be first areas, and the areas, corresponding to the second air inlets, in the room body are configured to be second areas; the passage is formed between the first area and the second area; the plurality of adjusting shutters are correspondingly positioned in the plurality of second air inlets; one end of the air return pipe is located in the room body, and the other end of the air return pipe is communicated with the other end of the air inlet pipe; the heat pump and the fan are both located at the communication position of the other end of the air return pipe and the other end of the air inlet pipe. The device has the technical effects that targeted experiments can be conveniently carried out on different types of EC fans, and centralized placement of the EC fans is prevented, so that the heat exchange uniformity and sufficiency of the EC fans are relatively good, and meanwhile, workers can conveniently carry out arrangement work.

Description

Technical Field

[0001] The invention relates to experimental equipment, and in particular to EC fan experimental equipment and a temperature control method. Background Art

[0002] EC fan, the full name of Electronic Commutated motor fan, is a fan driven by an electronically commutated motor and has the advantages of high efficiency and energy saving.

[0003] After production is completed, the relevant EC fans need to undergo high temperature and harsh environment tests using experimental equipment to improve the stability and reliability of the relevant EC fans.

[0004] However, the experimental methods of relevant experimental equipment are single, and it is difficult to conduct targeted experiments on different types of EC fans with different sizes, different installation methods and different thermal properties. This can easily lead to the EC fans being placed in a centralized manner, resulting in poor uniformity and sufficiency in heat exchange of the EC fans. Moreover, the staff generally carry out the layout work in the experimental area of ​​the relevant experimental equipment, which can easily lead to the EC fans that have completed the layout work blocking the staff, making it inconvenient to carry out the layout work. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide an EC fan test equipment, which is convenient for conducting targeted experiments on different types of EC fans and preventing EC fans from being placed in a centralized manner, thereby making the heat exchange uniformity and sufficiency of the EC fans better and facilitating the staff to arrange the work; another purpose of the present invention is to provide a temperature control method.

[0006] Technical solution:

[0007] An EC fan test device, comprising:

[0008] Room body;

[0009] An air inlet pipe, one end of which is located in the room;

[0010] A plurality of first air inlets and a plurality of second air inlets are respectively arranged on both sides of one end of the air inlet pipe, the area in the room corresponding to the first air inlets is configured as area one, and the area in the room corresponding to the second air inlets is configured as area two;

[0011] a passage formed between the area 1 and the area 2;

[0012] a plurality of adjustable shutters corresponding to the plurality of said second air inlets;

[0013] An air return duct, one end of which is located in the room, and the other end of which is connected to the other end of the air inlet duct;

[0014] A heat pump and a fan are both located at the connection point between the other end of the return air duct and the other end of the inlet air duct.

[0015] Optionally, also include:

[0016] a temperature sensing assembly located within the housing;

[0017] The controller is electrically connected to the temperature sensor assembly, the regulating shutters, the heat pump and the fan.

[0018] Optionally, the temperature sensing component is configured as a plurality of first temperature sensing units located in the area one and a plurality of second temperature sensing units located in the area two, the first temperature sensing unit and the first air inlet are arranged correspondingly, the second temperature sensing unit and the second air inlet are arranged correspondingly, and the first temperature sensing unit and the second temperature sensing unit are both electrically connected to the controller.

[0019] Optionally, also include:

[0020] corresponding to a plurality of first air valves located in the plurality of first air inlets;

[0021] A plurality of second air valves corresponding to the plurality of second air inlets;

[0022] Wherein, the first air valve and the second air valve are both electrically connected to the controller.

[0023] Optionally, the first temperature sensing unit and the second temperature sensing unit have the same structure, both comprising a plurality of temperature sensors arranged in a linear array, wherein the spacing between adjacent temperature sensors is equal in the horizontal direction, and the spacing between adjacent temperature sensors gradually decreases in the direction of gravity.

[0024] Optionally, it also includes a door body movably connected to the room body, and the door body is located between adjacent second temperature sensing units.

[0025] Optionally, also include:

[0026] an air outlet duct connected to a connecting point between the other end of the return air duct and the other end of the air inlet duct;

[0027] A valve is connected to the air outlet pipe, and the valve is electrically connected to the controller.

[0028] Optionally, it also includes an alarm component electrically connected to the controller.

[0029] Optionally, it also includes a temperature recording component electrically connected to the controller.

[0030] Optionally, it also includes a camera and a display both electrically connected to the controller, and the camera is located in the room.

[0031] A temperature control method, comprising:

[0032] In the circulating hot air supply mode, when the EC fan experimental equipment is turned on, the controller starts the heat pump and the fan to deliver hot air to the room. When the temperature sensor component detects that the temperature in the room is higher than the first preset value, the controller turns off the heat pump or reduces the power of the heat pump. When the temperature sensor component detects that the temperature in the room is lower than the second preset value, the controller starts the heat pump or increases the power of the heat pump to facilitate the delivery of hot air to the room.

[0033] In the hot air exhaust mode, when the temperature sensor component detects that the temperature in the room is higher than the third preset value, the controller opens the valve; when the temperature sensor component detects that the temperature in the room is lower than the third preset value, the controller closes the valve.

[0034] Beneficial effects:

[0035] (1) This solution configures the room into zone 1 and zone 2, and uses heat pumps, fans, and adjustable shutters to facilitate targeted experiments on different types of EC fans with different sizes, different installation methods, and different thermal properties, and prevents EC fans from being placed in a centralized manner, thereby ensuring that the heat exchange uniformity and sufficiency of the EC fans are better;

[0036] (2) The first temperature sensing unit facilitates targeted control of the air supply volume of the first air inlet, and the second temperature sensing unit facilitates targeted control of the air supply volume and air supply angle of the second air inlet;

[0037] (3) In order for the staff to work in the EC fan experimental equipment of this scheme, there is an aisle between area 1 and area 2 of the room body, and in order to prevent the wiring from leaking into the aisle, the wiring of area 1 and area 2 are set close to the wall of the room body. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is one of the structural schematic diagrams of an EC fan experimental device according to Example 1 of the present invention;

[0039] Figure 2 This is a second structural schematic diagram of an EC fan experimental device according to Embodiment 1 of the present invention;

[0040] Figure 3 This is a third structural schematic diagram of an EC fan experimental device according to Embodiment 1 of the present invention;

[0041] Figure 4 This is a schematic structural diagram of an air inlet duct according to Embodiment 1 of the present invention;

[0042] Figure 5 is a layout diagram of a first temperature sensing unit of embodiment 1 of the present invention;

[0043] Figure 6 is a layout diagram of the second temperature sensing unit of embodiment 1 of the present invention;

[0044] Figure 7 An exploded view of the second air valve and the regulating louver of Example 1 of the present invention;

[0045] In the figure: 1. room body; 11. area 1; 12. area 2; 13. door body; 14. corridor; 2. air inlet duct; 21. first air inlet; 22. second air inlet; 3. return air duct; 4. heat pump; 5. fan; 6. temperature sensing component; 61. first temperature sensing unit; 62. second temperature sensing unit; 600. temperature sensor; 71. first air valve; 72. second air valve; 73. adjusting shutters; 81. air outlet duct; 82. valve; 91. alarm component; 92. display; 93. inverter; 100. controller; 200. single-layer mounting rack; 300. multi-layer mounting rack. DETAILED DESCRIPTION

[0046] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Example 1

[0048] like Figure 1-Figure 4 The present embodiment provides an EC fan experimental device, comprising: a room body 1; an air inlet duct 2, one end of which is located in the room body 1; a plurality of first air inlets 21 and a plurality of second air inlets 22 respectively arranged on both sides of one end of the air inlet duct 2, the area in the room body 1 corresponding to the first air inlet 21 is configured as area 11, and the area in the room body 1 corresponding to the second air inlet 22 is configured as area 2 12; a corridor 14 formed between area 11 and area 2 12; a plurality of adjustable shutters 73 corresponding to the plurality of second air inlets 22; a return air duct 3, one end of which is located in the room body 1, and the other end of the return air duct 3 is connected to the other end of the air inlet duct 2; a heat pump 4 and a fan 5 both located at the connection between the other end of the return air duct 3 and the other end of the air inlet duct 2.

[0049] Specifically, during the experiment, first, very small and very large EC fans were installed on the single-layer mounting frame 200, and the single-layer mounting frame 200 was placed in the area 11. At the same time, a medium-sized EC fan was installed on the multi-layer mounting frame 300, and the multi-layer mounting frame 300 was placed in the area 2 12. Then, the heat pump 4, the fan 5 and the louver 73 were started, so that the first air inlet 21 could achieve horizontal air supply, so that the hot air could evenly pass through the EC fan located on the single-layer mounting frame 200 from one side to the other, and at the same time, the second air inlet 22 was adjusted to the louver 73. 3, an angle-adjustable vertical air supply is realized, ensuring that the EC fan located on the multi-layer mounting frame 300 is heated evenly, preventing the upper layer temperature from being too high and the lower layer temperature from being too low, and finally making the hot air discharged from one end of the return air duct 3, and then discharged into the other end of the air inlet duct 2 through the other end of the return air duct 3, thereby facilitating the circulation supply of hot air; In summary, this solution configures the room body 1 into area 1 11 and area 2 12, and uses the heat pump 4, the fan 5 and the adjustable shutters 73, so as to facilitate targeted experiments on different types of EC fans with different sizes, different installation methods and different thermal properties.

[0050] Among them, the air inlet duct 2 is preferably arranged at the top end of the room body 1, and the return air duct 3 is preferably arranged at the bottom end of the room body 1, so that the hot air can circulate in the room body 1 under the dual effects of pressure and gravity; the air inlet duct 2 is used for air intake, and the first air inlet 21 and the second air inlet 22 are directly arranged at one end of the air inlet duct 2, without the need to set a branch pipe, which is convenient for simplifying the structure and thus reducing costs. The number of the first air inlet 21 and the second air inlet 22 is not limited, and can be four, five, etc., and is preferably four; the adjusting louver 73 is used to adjust the air supply direction of the second air inlet 22, so that the second air inlet 22 can achieve angle-adjustable vertical air supply; in order for the staff to work in the EC fan experimental equipment of this scheme, there is an aisle 14 between area 11 and area 2 12 of the room body 1, and in order to prevent the wiring from leaking to the aisle 14, the wiring of area 11 and area 2 12 are both arranged at the wall close to the room body 1.

[0051] Further, such as Figure 5-Figure 6 , further comprising: a temperature sensing component 6 located in the room body 1; a controller 100, the temperature sensing component 6, the adjusting shutters 73, the heat pump 4 and the fan 5 are all electrically connected to the controller 100.

[0052] Specifically, after the EC fan experimental equipment of the present scheme is turned on, the controller 100 starts the heat pump 4 and the fan 5 to deliver hot air to the room 1. When the temperature sensor component 6 detects that the temperature in the room 1 is higher than the first preset value, the controller 100 turns off the heat pump 4 or reduces the power of the heat pump 4. When the temperature sensor component 6 detects that the temperature in the room 1 is lower than the second preset value, the controller 100 starts the heat pump 4 or increases the power of the heat pump 4 to facilitate the delivery of hot air to the room 1. At this time, the present scheme is in a circulating hot air supply mode; the temperature sensor component 6 can be in the form of a thermocouple type, a thermistor type, etc.; the present scheme can also be provided with a power supply and a frequency converter 93 both electrically connected to the controller 100, so as to facilitate the supply of 24V, 110V, 380V and other power supplies for different EC fans.

[0053] Further, such as Figure 5-Figure 6 The temperature sensing assembly 6 is configured as a plurality of first temperature sensing units 61 located in the area 11 and a plurality of second temperature sensing units 62 located in the area 2 12. The first temperature sensing unit 61 is corresponding to the first air inlet 21, and the second temperature sensing unit 62 is corresponding to the second air inlet 22. The first temperature sensing unit 61 and the second temperature sensing unit 62 are both electrically connected to the controller 100. Specifically, the first air inlet 21 and the first temperature sensing unit 61 preferably correspond one to one, so as to achieve good targeting.

[0054] Further, such as Figure 4 and Figure 7 , and also includes: a plurality of first air valves 71 corresponding to the plurality of first air inlets 21; a plurality of second air valves 72 corresponding to the plurality of second air inlets 22; wherein the first air valves 71 and the second air valves 72 are both electrically connected to the controller 100.

[0055] Specifically, the first temperature sensing unit 61 is used to form a temperature monitoring zone at the air supply position of the first air inlet 21, and perform targeted temperature measurement, and transmit the temperature measurement signal to the controller 100, and the controller 100 controls the first air valve 71, so as to facilitate targeted control of the air supply volume of the first air inlet 21; the second temperature sensing unit 62 is used to form a temperature monitoring zone at the air supply position of the second air inlet 22, and perform targeted temperature measurement, and transmit the temperature measurement signal to the controller 100, and the controller 100 controls the second air valve 72 and the adjustment shutter 73, so as to facilitate targeted control of the air supply volume and air supply angle of the second air inlet 22; wherein, the first temperature sensing unit 61 and the second temperature sensing unit 62 can be in the form of thermocouple type, thermistor type, etc., and the first air valve 71 and the second air valve 72 can be ball valves, butterfly valves, etc.

[0056] Further, such as Figure 5-Figure 6The first temperature sensing unit 61 and the second temperature sensing unit 62 have the same structure, both including a plurality of temperature sensors 600 arranged in a linear array. In the horizontal direction, the spacing between adjacent temperature sensors 600 is equal, and in the direction of gravity, the spacing between adjacent temperature sensors 600 gradually decreases.

[0057] Specifically, multiple temperature sensors 600 are used to form multi-point temperature measurement for a single temperature monitoring area, and transmit multiple temperature measurement signals to the controller 100. The controller 100 performs weighted calculation and summation on the multiple temperature measurement signals to construct a temperature response value for each temperature monitoring area, thereby facilitating targeted control of the air supply volume and air supply angle of the first air inlet 21 and the second air inlet 22. The controller 100 also performs weighted calculation and summation on the temperature response values ​​of the multiple temperature monitoring areas to construct a temperature response value for the entire room 1, thereby facilitating targeted control of the start and stop and power of the heat pump 4.

[0058] Since the spacing between adjacent temperature sensors 600 in the horizontal direction is equal, the uniformity of temperature measurement in the horizontal direction is good; since the air flow in the upper space inside the room body 1 is large, the hot air is relatively dense, and the temperature difference is small, relatively fewer temperature sensors 600 are set (that is, the spacing between adjacent temperature sensors 600 is relatively large), and the air flow in the lower space inside the room body 1 is large, the hot air is relatively sparse, and the temperature difference is large, so relatively more temperature sensors 600 are set (that is, the spacing between adjacent temperature sensors 600 is relatively small), which is convenient for ensuring the comprehensiveness of temperature measurement in the gravity direction and reducing costs; the temperature sensor 600 can be in the shape of a thermocouple, a thermistor, etc.

[0059] Further, such as Figure 6 , further comprising a door body 13 movably connected to the room body 1, the door body 13 being located between adjacent second temperature sensing units 62. Specifically, the door body 13 facilitates the opening and closing of the room body 1, thereby facilitating the placement of a single-layer mounting rack 200, a multi-layer mounting rack 300, etc. in the room body 1; due to the existence of the door body 13, one second temperature sensing unit 62 preferably corresponds to two second air inlets 22.

[0060] Further, such as Figure 1 , further comprising: an air outlet pipe 81 connected to the connecting point between the other end of the return air pipe 3 and the other end of the air inlet pipe 2; a valve 82 connected to the air outlet pipe 81, and the valve 82 is electrically connected to the controller 100.

[0061] Specifically, when the temperature sensing component 6 detects that the temperature in the room 1 is higher than the third preset value (the upper temperature limit), the controller 100 opens the valve 82, so that part of the hot air in the room 1 is discharged through the return air duct 3 and the outlet air duct 81 in sequence. When the temperature sensing component 6 detects that the temperature in the room 1 is lower than the third preset value (the upper temperature limit), the controller 100 closes the valve 82. At this time, the present scheme is in the hot air discharge mode, wherein the valve 82 can be a ball valve, a butterfly valve, etc.

[0062] Further, such as Figure 1 , and also includes an alarm component 91 electrically connected to the controller 100. Specifically, when the temperature sensor component 6 detects that the temperature in the room 1 is higher than the alarm value (such as the temperature value under an abnormal fire state), the controller 100 controls the alarm component 91 to alarm, and the alarm component 91 can be in the form of sound, light, etc.

[0063] Further, such as Figure 1 , and also includes a temperature recording component electrically connected to the controller 100. Specifically, the temperature recording component is used to record the temperature in real time and draw a temperature change curve.

[0064] Further, such as Figure 1 , and also includes a camera and a display 92 both electrically connected to the controller 100, and the camera is located in the room body 1. Specifically, the camera is used to monitor the situation in the room body 1 in real time, and the display 92 is used to display the situation in the room body 1 in real time.

[0065] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An EC fan test equipment, characterized in that: include: House body (1); An air inlet pipe (2), one end of the air inlet pipe (2) being located inside the room body (1); A plurality of first air inlets (21) and a plurality of second air inlets (22) are respectively arranged on both sides of one end of the air inlet pipe (2), the area in the room body (1) corresponding to the first air inlets (21) is configured as area one (11), and the area in the room body (1) corresponding to the second air inlets (22) is configured as area two (12); a passage (14) formed between the area one (11) and the area two (12); A plurality of adjustment shutters (73) correspondingly located in the plurality of the second air inlets (22); an air return duct (3), one end of the air return duct (3) being located in the room body (1), and the other end of the air return duct (3) being connected to the other end of the air inlet duct (2); A heat pump (4) and a fan (5) are both located at the connection point between the other end of the return air duct (3) and the other end of the inlet air duct (2).

2. An EC fan test equipment according to claim 1, characterized in that: Also includes: A temperature sensing component (6) located in the room (1); The controller (100), the temperature sensing component (6), the regulating shutter (73), the heat pump (4) and the fan (5) are all electrically connected to the controller (100).

3. An EC fan test equipment according to claim 2, characterized in that: The temperature sensing assembly (6) is configured as a plurality of first temperature sensing units (61) located in the area one (11) and a plurality of second temperature sensing units (62) located in the area two (12); the first temperature sensing units (61) and the first air inlet (21) are arranged correspondingly, and the second temperature sensing units (62) and the second air inlet (22) are arranged correspondingly; and the first temperature sensing units (61) and the second temperature sensing units (62) are both electrically connected to the controller (100).

4. An EC fan test equipment according to claim 3, characterized in that: Also includes: A plurality of first air valves (71) correspondingly located in the plurality of first air inlets (21); A plurality of second air valves (72) correspondingly located in the plurality of the second air inlets (22); Wherein, the first air valve (71) and the second air valve (72) are both electrically connected to the controller (100).

5. The EC fan test equipment according to claim 3, characterized in that: The first temperature sensing unit (61) and the second temperature sensing unit (62) have the same structure, and both comprise a plurality of temperature sensors (600) arranged in a linear array, wherein the spacing between adjacent temperature sensors (600) is equal in the horizontal direction, and the spacing between adjacent temperature sensors (600) gradually decreases in the gravity direction.

6. The EC fan test equipment according to claim 3, characterized in that: It also comprises a door body (13) movably connected to the room body (1), and the door body (13) is located between adjacent second temperature sensing units (62).

7. An EC fan test equipment according to any one of claims 2 to 6, characterized in that: Also includes: an air outlet pipe (81) connected to a connecting point between the other end of the return air pipe (3) and the other end of the air inlet pipe (2); A valve (82) is communicated with the air outlet pipe (81), and the valve (82) is electrically connected to the controller (100).

8. An EC fan test equipment according to any one of claims 2 to 6, characterized in that: It also includes an alarm component (91) electrically connected to the controller (100).

9. An EC fan test equipment according to any one of claims 2 to 6, characterized in that: It also includes a camera and a display (92) both electrically connected to the controller (100), wherein the camera is located inside the room (1).

10. A temperature control method, characterized in that: include: In the circulating hot air supply mode, after the EC fan experimental equipment is turned on, the controller (100) starts the heat pump (4) and the fan (5) to deliver hot air to the room (1); when the temperature sensor component (6) detects that the temperature in the room (1) is higher than a first preset value, the controller (100) turns off the heat pump (4) or reduces the power of the heat pump (4); when the temperature sensor component (6) detects that the temperature in the room (1) is lower than a second preset value, the controller (100) starts the heat pump (4) or increases the power of the heat pump (4) to facilitate the delivery of hot air to the room (1); In the hot air exhaust mode, when the temperature sensing component (6) detects that the temperature in the room (1) is higher than a third preset value, the controller (100) opens the valve (82); when the temperature sensing component (6) detects that the temperature in the room (1) is lower than the third preset value, the controller (100) closes the valve (82).

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