A high voltage inverter testing machine

Abstract

The utility model relates to the technical field of high-voltage inverter testing, specifically a high-voltage inverter testing machine. It includes a testing machine housing, a testing machine controller and a fixed housing; both ends of the testing machine housing are connected with ventilation pipes, and dustproof nets are installed in the ventilation pipes on both sides; the testing machine controller is installed on the inner side of the testing machine housing; a plug slot for accommodating the end of the plug is provided on the fixed housing, a jack for inserting the plug is provided on the testing machine housing, a threading hole connected to the plug slot is provided on the upper end of the fixed housing, and an elastic component is connected between the fixed housing and the testing machine housing. In the utility model, the inserted plug can be fixed by the fixed housing and the elastic component, thereby preventing the plug from loosening and ensuring the stability of the plug connection.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage frequency converter testing, in particular to a high-voltage frequency converter testing machine. Background Art

[0002] With the rapid development of power electronics technology, computer technology, and automatic control technology, high-voltage inverters are widely used in petroleum, chemical, electric power, steel, and various industries with environmental protection and dust removal needs. During the application of high-voltage inverters, problems often occur in high-voltage inverters due to load failures or abnormal working environment factors. Therefore, there is a considerable demand for fault diagnosis and maintenance of high-voltage inverters.

[0003] In the prior art, when testing a high-voltage frequency converter, wiring work needs to be performed. After the connector is inserted into the test machine, the plug is easily loosened due to the lack of a fixing mechanism, which easily leads to poor contact. Utility Model Content

[0004] The utility model aims to provide a high-voltage frequency converter testing machine in view of the problems existing in the background technology.

[0005] The technical solution of the utility model is a high-voltage inverter testing machine, comprising:

[0006] The two ends of the test machine are connected to the housing with ventilation pipes, and dust-proof nets are installed in the ventilation pipes on both sides;

[0007] A test machine controller, the test machine controller is installed on the inner side of the test machine housing;

[0008] A fixed shell is provided with a plug slot for accommodating the end of the plug, a socket for inserting the plug is provided on the test machine housing, a threading hole connected to the plug slot is provided at the upper end of the fixed shell, and an elastic component is connected between the fixed shell and the test machine housing.

[0009] Preferably, the elastic component includes a connecting slider, a sliding rod, a spring and a limit block. The sliding rod is connected to the outer wall of the testing machine housing, the connecting slider is connected to the fixed shell, the connecting slider is slidably set on the sliding rod, the spring sleeve is installed on the sliding rod, and the limit block is set at the end of the sliding rod.

[0010] Preferably, cooling fans are installed on both sides of the interior of the testing machine housing, and a controller and a temperature sensor are installed inside the testing machine housing.

[0011] Preferably, mounting frames are provided on both sides of the interior of the testing machine housing, and the cooling fans on both sides are respectively installed on the mounting frames on both sides. The mounting frames on both sides are connected with transmission shafts, and the mounting frames are rotatably installed on the inner side of the testing machine housing through the transmission shafts. A power component for driving the two transmission shafts to rotate synchronously is installed on the testing machine housing.

[0012] Preferably, the power assembly includes an electric telescopic rod, a rack, a gear ring, a chain and two sprockets. The two sprockets are respectively installed on the transmission shafts on both sides. The two sprockets are connected to each other through a chain. The electric telescopic rod is installed on the testing machine housing and its output shaft is connected to the rack. The gear ring is installed on the transmission shaft on one side and meshes with the rack.

[0013] Preferably, a gas flow rate sensor is installed on the inner side of the ventilation pipe.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects: the fixed housing and the elastic component provided in the technical solution can fix the inserted plug, thereby preventing the plug from loosening and ensuring the stability of the plug connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a cross-sectional structural diagram of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the plug, the fixed housing and the elastic component in the utility model.

[0018] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at point A.

[0019] Figure numerals: 1. Test machine housing; 2. Test machine controller; 3. Ventilation pipe; 4. Mounting frame; 5. Cooling fan; 6. Transmission shaft; 7. Sprocket; 8. Chain; 9. Electric telescopic rod; 10. Dust net; 11. Fixed shell; 111. Plug slot; 112. Threading hole; 12. Plug; 13. Connecting slider; 14. Slide rod; 15. Spring; 16. Limit block; 17. Rack; 18. Gear ring. DETAILED DESCRIPTION

[0020] Embodiment 1

[0021] like Figure 1-Figure 3As shown, a high-voltage inverter test machine proposed in this embodiment includes a test machine housing 1, a test machine controller 2 and a fixed shell 11; both ends of the test machine housing 1 are connected to each other with ventilation pipes 3, and dustproof nets 10 are installed in the ventilation pipes 3 on both sides; the test machine controller 2 is installed on the inner side of the test machine housing 1; a plug slot 111 for accommodating the end of a plug 12 is provided on the fixed shell 11, a jack for inserting the plug 12 is provided on the test machine housing 1, a threading hole 112 connected to the plug slot 111 is provided on the upper end of the fixed shell 11, an elastic component is connected between the fixed shell 11 and the test machine housing 1, the elastic component includes a connecting slider 13, a slide rod 14, a spring 15 and a limit block 16, the slide rod 14 is connected to the outer wall of the test machine housing 1, the connecting slider 13 is connected to the fixed shell 11, the connecting slider 13 is slidably arranged on the slide rod 14, the spring 15 is sleeved and installed on the slide rod 14, and the limit block 16 is arranged at the end of the slide rod 14.

[0022] When testing the high-frequency transformer, the cable on the plug 12 is passed through the threading hole 112, and then the cable is pulled so that the end of the plug 12 is placed on the inner side of the plug slot 111, and then the fixed shell 11 is pushed to move, so that the plug 12 connected to the high-frequency transformer passes through the jack socket on the test machine housing 1 to the interface on the test machine controller 2. Under the elastic force of the spring 15, the fixed shell 11 is pressed against the outer wall of the test machine housing 1. The set fixed shell 11 can limit the plug 12, thereby preventing the plug 12 from falling off and strengthening the fixation of the plug 12.

[0023] Embodiment 2

[0024] like Figure 2 and Figure 4 As shown, a high-voltage inverter test machine proposed in this embodiment, compared with the first embodiment, in this embodiment, cooling fans 5 are installed on both sides of the interior of the test machine housing 1, and a controller (not shown) and a temperature sensor (not shown) are installed inside the test machine housing 1. The set temperature sensor can monitor the internal temperature of the test machine housing 1 in real time and feed back the monitored data to the controller. When the temperature rises to exceed the set threshold, the controller controls the cooling fans 5 on both sides to start and work simultaneously. The wind directions of the winds blown by the cooling fans 5 on both sides are the same, thereby accelerating the discharge of hot air inside the test machine housing 1.

[0025] Installation frames 4 are provided on both sides of the interior of the testing machine housing 1, and the cooling fans 5 on both sides are respectively installed on the installation frames 4 on both sides. Transmission shafts 6 are connected to the installation frames 4 on both sides, and the installation frames 4 are rotatably installed on the inner side of the testing machine housing 1 through the transmission shaft 6. A power component for driving the two transmission shafts 6 to rotate synchronously is installed on the testing machine housing 1; the power component includes an electric telescopic rod 9, a rack 17, a gear ring 18, a chain 8 and two sprockets 7, the two sprockets 7 are respectively installed on the transmission shafts 6 on both sides, and the two sprockets 7 are connected by the chain 8. The electric telescopic rod 9 is installed on the testing machine housing 1 and its output shaft is connected to the rack 17. The gear ring 18 is installed on the transmission shaft 6 on one side and meshes with the rack 17. The electric telescopic rod 9 drives the rack 17 to move, thereby driving the gear ring 18 to rotate, and the rotation of the gear ring 18 drives The rotation of the transmission shaft 6, under the transmission action of the chain 8 and the two sprockets 7, synchronously drives the transmission shaft 6 on the other side to rotate, thereby driving the two cooling fans 5 to rotate synchronously, so that the cooling fans 5 on both sides rotate 180 degrees, thereby changing the wind direction of the fan, and the dust-proof net 10 on one side can be blown in the opposite direction to remove dust. When the dust-proof net 10 on the other side needs to be dusted, it is only necessary to drive the cooling fan 5 to rotate another 180 degrees; a gas flow rate sensor (not shown) is installed on the inner side of the ventilation pipe 3. The set gas flow rate sensor can monitor the gas flow rate inside the ventilation pipe 3 in real time, and feed back the data to the controller. When the flow rate decreases, it indicates that the surface of the dust-proof net 10 may be blocked. At this time, the controller controls and adjusts the direction of the cooling fan 5, thereby realizing reverse blowing and dust removal of the dust-proof net 10, and its automation level is relatively high.

[0026] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A high voltage inverter tester, characterized in that: include: A testing machine housing (1) is provided with ventilation pipes (3) at both ends, and dustproof nets (10) are installed in the ventilation pipes (3) on both sides; A test machine controller (2), the test machine controller (2) is installed inside the test machine housing (1); A fixed shell (11) is provided with a plug slot (111) for accommodating the end of a plug (12); a test machine housing (1) is provided with a plug hole for inserting the plug (12); an upper end of the fixed shell (11) is provided with a threading hole (112) connected to the plug slot (111); and an elastic component is connected between the fixed shell (11) and the test machine housing (1).

2. A high voltage inverter tester according to claim 1, characterized in that: The elastic component comprises a connecting slider (13), a sliding rod (14), a spring (15) and a limit block (16); the sliding rod (14) is connected to the outer wall of the testing machine housing (1); the connecting slider (13) is connected to the fixed housing (11); the connecting slider (13) is slidably arranged on the sliding rod (14); the spring (15) is sleeved and installed on the sliding rod (14); and the limit block (16) is arranged at the end of the sliding rod (14).

3. A high voltage inverter tester according to claim 1, characterized in that: Cooling fans (5) are installed on both sides of the testing machine housing (1), and a controller and a temperature sensor are installed inside the testing machine housing (1).

4. A high voltage inverter tester according to claim 3, characterized in that: Mounting frames (4) are provided on both sides of the interior of the test machine housing (1); cooling fans (5) on both sides are mounted on the mounting frames (4) on both sides respectively; transmission shafts (6) are connected to the mounting frames (4) on both sides; and the mounting frames (4) are rotatably mounted on the inner side of the test machine housing (1) via the transmission shafts (6); and a power assembly for driving the two transmission shafts (6) to rotate synchronously is mounted on the test machine housing (1).

5. A high voltage inverter tester according to claim 4, characterized in that: The power assembly comprises an electric telescopic rod (9), a rack (17), a gear ring (18), a chain (8) and two sprockets (7). The two sprockets (7) are respectively mounted on transmission shafts (6) on both sides. The two sprockets (7) are connected in transmission via the chain (8). The electric telescopic rod (9) is mounted on a testing machine housing (1) and its output shaft is connected to the rack (17). The gear ring (18) is mounted on the transmission shaft (6) on one side and meshes with the rack (17).

6. A high voltage inverter tester according to claim 5, characterized in that: A gas flow rate sensor is installed on the inner side of the ventilation pipe (3).

Images