Inverter device and electronic equipment

Abstract

The utility model is suitable for the technical field of inverters, and provides an inverter device and electronic equipment. The inverter device is provided with a heat dissipation air channel communicated with air, the heat dissipation air channel is provided with an air inlet, a dustproof net is arranged in the heat dissipation air channel, a first air speed sensor is arranged on one side of the dustproof net, and the dustproof net is located between the air inlet and the first air speed sensor. The inverter device further comprises a blockage prompting module, and the blockage prompting module is electrically connected with the first wind speed sensor. According to the utility model, the first wind speed sensor is used for detecting the wind speed of air passing through the dustproof net and detecting the blocking condition of the dustproof net, and then the blocking prompt module is used for warning a user, so that the effects of monitoring the blocking condition of the dustproof net, reducing the manual maintenance frequency and improving the maintenance efficiency of the inverter device can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to inverter technical field especially, it relates to a kind of inverter device and electronic equipment. BACKGROUND

[0002] Inverter is a kind of device for converting the direct current generated by equipment into alternating current, and is widely used in photovoltaic power generation, wind power generation and industrial power supply fields. To ensure the inverter operates in an efficient and stable state, a special ventilation duct is usually designed inside the inverter for heat dissipation management. A dust screen is provided in the ventilation duct to filter the air entering the inverter, preventing dust and foreign matter from entering and thus protecting the internal components from contamination and damage. After a long period of operation, the dust screen will inevitably accumulate suspended particulate matter and dust in the air, causing the dust screen to become clogged. Once the dust screen is clogged, the air flow of the ventilation duct will be significantly reduced, resulting in a significant decrease in the heat dissipation efficiency of the inverter, which in turn causes the temperature of the equipment to rise and the performance to decrease, and may even cause the inverter to overheat or malfunction.

[0003] Since the dust screen is installed inside the inverter, users cannot directly observe or identify the clogging condition of the dust screen during daily use, which greatly inconveniences timely maintenance and replacement of the dust screen. Existing inverter products usually cannot effectively detect whether the dust screen is clogged, and users often only discover the dust screen clogging problem when the performance of the inverter is significantly decreased or the equipment malfunctions, missing the best maintenance opportunity. SUMMARY

[0004] The utility model provides a kind of inverter device and electronic equipment, to solve the problem that cannot effectively detect whether the dust screen is clogged in prior art.

[0005] The utility model embodiment is realized as follows: the inverter device has a heat dissipation air duct in communication with air, the heat dissipation air duct has an air inlet, a dust screen is provided in the heat dissipation air duct, a first air speed sensor is provided on one side of the dust screen, and the dust screen is located between the air inlet and the first air speed sensor; the inverter device further includes a clogging prompting module, and the clogging prompting module is electrically connected with the first air speed sensor.

[0006] Further, a second air speed sensor is provided on the other side of the dust screen, and the second air speed sensor is electrically connected with the clogging prompting module.

[0007] Further, the first air speed sensor and the second air speed sensor are symmetrically arranged.

[0008] Further, the clogging prompting module includes a buzzer and / or an LED lamp.

[0009] Further, the inverter device further comprises a display device, which is electrically connected with the first wind speed sensor.

[0010] Further, the display device is arranged on the surface of the inverter device, and / or the display device is arranged separately from the inverter device.

[0011] Further, the inverter device further comprises: an IGBT module arranged in the inverter device; a first temperature detection module arranged in the IGBT module; and a controller electrically connected with the first temperature detection module and the blockage prompting module respectively.

[0012] The utility model embodiment further provides an electronic equipment, the electronic equipment includes the inverter device as described above.

[0013] The utility model embodiment provides an inverter device and an electronic equipment. The inverter device has a heat dissipation air duct in communication with air, the heat dissipation air duct has an air inlet, the heat dissipation air duct is provided with a dust screen, one side of the dust screen is provided with a first wind speed sensor, and the dust screen is located between the air inlet and the first wind speed sensor. The inverter device further comprises a blockage prompting module, and the blockage prompting module is electrically connected with the first wind speed sensor. The utility model detects the air wind speed after the dust screen through the first wind speed sensor, detects the blockage condition of the dust screen, and then prompts the user through the blockage prompting module, so that the blockage condition of the dust screen can be monitored, the number of manual maintenance can be reduced, and the efficiency of maintaining the inverter device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a module structure schematic view of the electronic equipment provided by the utility model embodiment.

[0015] Figure 2 It is a module structure schematic view of the inverter device provided by the utility model embodiment.

[0016] Figure 3 It is an application environment schematic view of the inverter device provided by the utility model embodiment.

[0017] Figure 4 It is a plane structure schematic view of the inverter device provided by the utility model embodiment.

[0018] Figure 5 It is Figure 4 It is the internal structure schematic view of the heat dissipation air duct in the inverter device.

[0019] Main element symbol explanation: 1000, electronic equipment; 100, inverter device; 200, display device; 10, inverter main body; 20, heat dissipation air duct; 30, dust screen; 40, first wind speed sensor; 50, blockage prompting module; 60, second wind speed sensor; 70, IGBT module; 80, first temperature detection module; 90, controller; 21, air inlet. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0021] Please refer to Figure 1 , the electronic equipment 1000 in the utility model embodiment can include the inverter device 100 in the utility model embodiment. The electronic equipment 1000 specifically can be power electronic equipment 1000, household appliance, renewable energy equipment, power management equipment, industrial equipment, smart grid equipment and the like. The inverter device 100 is arranged in the electronic equipment 1000 to convert electric energy.

[0022] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 , the inverter device 100 of the utility model embodiment includes an inverter main body 10 and a heat dissipation air duct 20 in communication with the inverter main body 10. The heat dissipation air duct 20 can be used as a heat dissipation system of the inverter device 100 for ventilation and heat dissipation of the inverter device 100. The heat dissipation air duct 20 has an air inlet 21 in communication with the external air. A dust screen 30 for dust prevention is arranged in the heat dissipation air duct 20 of the inverter device 100. The dust screen 30 can filter the dust-containing cold wind into filtered cold wind to pass into the inverter device 100 for heat dissipation.

[0023] The dust screen 30 is arranged in the heat dissipation air duct 20. One side of the dust screen 30 is in communication with the inverter main body 10, and the other side of the dust screen 30 is in communication with the air inlet 21. A first wind speed sensor 40 is arranged on one side of the dust screen 30. The dust screen 30 is located between the air inlet 21 and the first wind speed sensor 40.

[0024] Therefore, as Figure 3 shown, in the process of external cold wind passing through the heat dissipation air duct 20 to heat the inverter device 100, the external cold wind (i.e. dust-containing cold wind) enters the dust screen 30 after entering the air inlet 21, so as to filter the external cold wind (i.e. form filtered cold wind), and then pass through the first wind speed sensor 40 and enter the inverter device 100.

[0025] Therefore, the first wind speed sensor 40 can detect the wind speed after the dust screen 30. Because for the dust screen 30, when the dust screen 30 is blocked, the wind pressure will increase, and the wind speed of the external cold air after passing through the dust screen 30 will also increase. Therefore, the wind speed of the filtered cold air after passing through the dust screen 30 can be detected by the first wind speed sensor 40 to achieve the effect of detecting the blocking of the dust screen 30. Correspondingly, for different environments, the wind speed data of the dust screen 30 under different blocking conditions can be collected first, and multiple tests can be performed to control the dust screen 30 at 0%-100% blocking degree, collect the wind speed data detected by the first wind speed sensor 40, and determine when the dust screen 30 is blocked to a certain degree (specifically, the temperature of the inverter device 100 can be combined) The inverter device 100 will be affected and the dust screen 30 must be replaced. After the threshold value is obtained through testing, the same model machine can use the same parameters. Therefore, by monitoring the wind speed of the filtered cold air after passing through the dust screen 30 through the first wind speed sensor 40, when the wind speed of the filtered cold air after passing through the dust screen 30 is greater than a certain threshold value, it can be judged that the dust screen 30 is blocked and needs to be replaced.

[0026] Moreover, the inverter device 100 further comprises a blocking prompting module 50, and the blocking prompting module 50 is electrically connected with the first wind speed sensor 40. Correspondingly, for the first wind speed sensor 40, in the process of detecting the wind speed after passing through the dust screen 30, a first wind speed detection signal containing the wind speed information after passing through the dust screen 30 will be generated, and the first wind speed sensor 40 will transmit the first wind speed detection signal to the blocking prompting module 50. The blocking prompting module 50 will receive the first wind speed detection signal and indicate the blocking of the dust screen 30 in the heat dissipation air duct 20 to the user according to the first wind speed detection signal. For example, when the blocking prompting module 50 judges from the information of the first wind speed detection signal that the dust screen 30 is blocked, the blocking prompting module 50 can generate a prompt signal to remind the user to replace the dust screen 30.

[0027] Optionally, the blockage prompting module 50 comprises a buzzer and / or an LED lamp. Specifically, the blockage prompting module 50 can comprise a buzzer, when the blockage prompting module 50 judges that the dust screen 30 has been blocked according to the information of the first wind speed detection signal, the buzzer can issue a buzzer alarm to indicate the user that the dust screen 30 has been blocked; when the blockage prompting module 50 judges that the dust screen 30 has not been blocked according to the information of the first wind speed detection signal, the buzzer does not issue a buzzer alarm. The blockage prompting module 50 can also comprise an LED lamp, for example, when the blockage prompting module 50 judges that the dust screen 30 has been blocked according to the information of the first wind speed detection signal, the LED lamp issues a red light to indicate the user that the dust screen 30 has been blocked; when the blockage prompting module 50 judges that the dust screen 30 has not been blocked according to the information of the first wind speed detection signal, the LED lamp issues a green light to indicate the user that the dust screen 30 has not been blocked. Of course, the blockage prompting module 50 can also comprise a buzzer and / or an LED lamp at the same time to indicate the user in cooperation with the blockage of the dust screen 30.

[0028] Of course, for the blockage prompting module 50, the blockage prompting module 50 can be arranged on the surface of the inverter device 100, and the blockage prompting module 50 can also be arranged independently of the inverter device 100, that is, the blockage prompting module 50 is arranged separately from the inverter device 100.

[0029] Therefore, in the utility model, the air wind speed (filtered cold wind) after passing through the dust screen 30 is detected by the first wind speed sensor 40, the blockage of the dust screen 30 is detected, and then the user is warned by the blockage prompting module 50, so that the blockage of the dust screen 30 can be monitored, the number of manual maintenance can be reduced, and the efficiency of maintaining the inverter device 100 can be improved.

[0030] Further, in a possible implementation, the other side of the dust screen 30 is provided with a second wind speed sensor 60, and the second wind speed sensor 60 is electrically connected with the blockage prompting module 50.

[0031] Specifically, in order to further improve the accuracy of the determination of the blocking condition of the dust screen 30. In the utility model, a second air speed sensor 60 can also be arranged on the other side of the dust screen 30, that is, the first air speed sensor 40 and the second air speed sensor 60 are oppositely arranged, and the second air speed sensor 60 can detect the air speed of the cold air that has not passed through the dust screen 30. Therefore, the air speed detected by the second air speed sensor 60 and the air speed detected by the first air speed sensor 40 can form a set of comparisons. By increasing the second air speed sensor 60 on the other side of the dust screen 30, the change in air speed can be more accurately evaluated. The first air speed sensor 40 measures the air speed of the cold air (dust-containing cold air) passing through the dust screen 30, and the second air speed sensor 60 monitors the air speed of the cold air (filtered cold air) that has not passed through the dust screen 30. The comparison of the two sensors, the first air speed sensor 40 and the second air speed sensor 60, can effectively identify the blocking condition of the dust screen 30, provide more accurate maintenance prompts, and further optimize the heat dissipation performance of the equipment and prolong the service life. Of course, the blocking prompt module 50 can specifically include STM32F103, STM32H743, STM32F407, STM32G431, MSP430F5529, TMS320F28027, K22F, K64F, LPC1768, Zynq-7000 type chip.

[0032] Further, for the arrangement of the first air speed sensor 40 and the second air speed sensor 60, the first air speed sensor 40 and the second air speed sensor 60 are symmetrically arranged. In this way, the first air speed sensor 40 and the second air speed sensor 60 are symmetrically arranged, which can ensure that the first air speed sensor 40 and the second air speed sensor 60 measure the air speed under the same conditions, and the accuracy of the blocking condition of the dust screen 30.

[0033] Further, as shown in Figure 3 The inverter device 100 further includes a display device 200, the display device 200 is electrically connected with the first air speed sensor 40, and the display device 200 is used for receiving the first air speed detection signal and visualizing the first air speed detection signal. The display device 200 can include a display screen, which can be arranged on the surface of the electronic device 1000, and of course can also be independently arranged outside the electronic device 1000. The display device 200 can receive the first air speed detection signal, and display the air speed detected by the first air speed sensor 40 and the blocking condition of the dust screen 30 through the display screen, so that the user can more intuitively know the blocking condition of the dust screen 30.

[0034] Of course, the display device 200 can be arranged on the surface of the inverter device 100, and / or the display device 200 is arranged separately from the inverter device 100.

[0035] Further, in addition to the wind speed detection, the dust screen 30 can be further combined with temperature detection to determine the blocking condition of the dust screen 30. The inverter device 100 further comprises an IGBT module 70, a first temperature detection module 80 and a controller 90. The IGBT module 70 is arranged in the inverter device 100, the first temperature detection module 80 is arranged in the IGBT module 70, and the controller 90 is electrically connected with the first temperature detection module 80 and the blocking prompt module 50 respectively.

[0036] The IGBT module 70 is the core device of the inverter device 100, and the temperature of the IGBT module 70 will affect the power generation efficiency of the inverter device 100. In the embodiment of the utility model, the IGBT module 70 can specifically include IGBT of model IKW75N60T, FS75R12KE3, FF300R12KT4, FF450R12ME4, IKW30N60T, CM75TF-24H, CM300DY-24H, CM600HA-24H, 6MBI75S-120, 6MBI450U-120.

[0037] And because the IGBT module 70 is the key module of the inverter device 100, the temperature of the IGBT module 70 will affect the power generation efficiency of the inverter device 100, so the detection of the temperature of the IGBT module 70 is very important in the inverter device 100. Therefore, the first temperature detection module 80 is arranged in the IGBT module 70 for detecting the temperature of the IGBT module 70, and the first temperature detection module 80 will generate and output a first temperature detection signal after detecting the IGBT module 70, and the first temperature detection signal contains the temperature information of the IGBT module 70.

[0038] The inverter device 100 further comprises a controller 90, and the controller 90 is electrically connected with the first temperature detection module 80 and the blocking prompt module 50 respectively. The controller 90 is used for receiving the first temperature detection signal output by the first temperature detection module 80, and the controller 90 outputs an indication signal to the blocking prompt module 50 according to the first temperature detection signal. The blocking prompt module 50 can prompt the user according to the indication signal to determine the blocking condition of the dust screen 30. Optionally, the controller 90 can specifically include chips of model STM32F103, STM32H743, STM32F407, STM32G431, MSP430F5529, TMS320F28027, K22F, K64F, LPC1768 and Zynq-7000.

[0039] When the dust screen 30 is blocked, the heat of the IGBT module 70 cannot be effectively dissipated, and the temperature of the IGBT module 70 is abnormally increased. Therefore, the first temperature detection module 80 is arranged to detect the temperature of the IGBT module 70, so as to effectively identify whether the heat dissipation of the inverter device 100 is caused by the blockage of the dust screen 30, and the temperature of the IGBT module 70 is increased. In combination with the detection of the air speed of the air passing through the dust screen 30 by the first air speed sensor 40, the effect of accurately judging the blockage of the dust screen 30 can be achieved.

[0040] Further, for the first temperature detection module 80, in a possible implementation, the first temperature detection module 80 comprises a first temperature sensor. Specifically, in the utility model, the first temperature detection module 80 can be composed of a first temperature sensor and an external circuit.

[0041] In the description of the present specification, the description of the terms "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] In addition, the above is only the preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An inverter device characterized by comprising: The inverter device has a heat dissipation air duct in communication with air, the heat dissipation air duct has an air inlet, a dust screen is arranged in the heat dissipation air duct, one side of the dust screen is provided with a first air speed sensor, and the dust screen is located between the air inlet and the first air speed sensor. The inverter device further comprises a blockage prompting module, and the blockage prompting module is electrically connected with the first air speed sensor.

2. The inverter apparatus according to claim 1, characterized by, Another side of the dust screen is provided with a second air speed sensor, and the second air speed sensor is electrically connected with the blockage prompting module.

3. The inverter apparatus according to claim 2, characterized by, The first air speed sensor and the second air speed sensor are symmetrically arranged.

4. The inverter apparatus of claim 1, wherein, The blockage prompting module comprises a buzzer and / or an LED lamp.

5. The inverter apparatus of claim 1, wherein, The inverter device further comprises a display device, and the display device is electrically connected with the first air speed sensor.

6. The inverter apparatus according to claim 5, characterized by, The display device is arranged on the surface of the inverter device, and / or the display device is arranged separately from the inverter device.

7. The inverter apparatus of claim 1, wherein The inverter device further comprises an IGBT module arranged in the inverter device. A first temperature detection module is arranged in the IGBT module. A controller is electrically connected with the first temperature detection module and the blockage prompting module respectively.

8. An electronic device, comprising: The electronic device comprises the inverter device according to any one of claims 1 to 7.

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