Three-phase reactor test equipment

Abstract

The invention discloses a three-phase reactor testing device, which belongs to the technical field of three-phase reactor testing and comprises a rack, a carrier plate is movably arranged on the rack, and a three-phase reactor can be continuously mounted on the carrier plate. An insulation resistance test station, a withstand voltage pulse test station, a direct current resistance test station and an alternating current load inductance power loss test station are sequentially arranged on the rack; the insulation resistance test station comprises an insulation resistance clamp and two groups of slide rails, and the slide rails are arranged on the rack; the voltage-withstanding pulse test station comprises a voltage-withstanding clamp, the voltage-withstanding clamp is movably installed on the slide rail, and the AC load inductance power loss test station comprises a load inductance loss test clamp. The electrical performance testing efficiency is greatly improved, the labor intensity of operators is reduced, the working efficiency is greatly improved, the electric shock risk of the operators is reduced, automatic data reading is achieved, production informatization improvement is facilitated, and the quality risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of three-phase reactor testing, in particular to a three-phase reactor testing device. Background Art

[0002] The three-phase incoming line reactor is a device used in power systems, mainly used to suppress surge and peak currents, smooth the spike pulses in the power supply voltage or the voltage sags generated when the bridge rectifier circuit is commutated, so as to reduce the impact of harmonics on the inverter and power supply. The main function of the three-phase reactor is to suppress surge and peak currents, smooth the spike pulses in the power supply voltage, and reduce the voltage sags generated when the bridge rectifier circuit is commutated, thereby reducing the impact of harmonics on the inverter and power supply. The working principle of the three-phase reactor is to suppress the change of current through its inductance characteristics. The reactor uses the principle of electromagnetic induction. When the current passes through the reactor, a magnetic field will be generated around it, and this magnetic field will hinder the change of current, thereby achieving the effect of smoothing the current and voltage. Specifically, three-phase reactors are often used in power systems, especially in inverters and power supplies, to reduce voltage fluctuations and harmonic interference caused by current changes.

[0003] Currently, in the field of three-phase reactor manufacturing, there are many types of products, and the test items are similar, but the specific parameters are different. Many instruments and test items are required, and it is necessary to manually switch various instruments for testing, which is time-consuming. In addition, manual testing is prone to risks such as mismeasurement, missed measurement, and electric shock. The data also needs to be recorded manually, which is inefficient and has high quality risks. Summary of the invention

[0004] With regard to the above problems existing in the prior art, the object of the present invention is to provide a three-phase reactor testing device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A three-phase reactor test device comprises a frame, a carrier plate is movably provided on the frame, a three-phase reactor can be continuously mounted on the carrier plate, and an insulation resistance test station, a withstand voltage pulse test station, a DC resistance test station and an AC load inductance power loss test station are sequentially provided on the frame;

[0007] The insulation resistance test station includes an insulation resistance fixture and a slide rail, wherein two sets of slide rails are provided, and the slide rails are arranged on a frame; the insulation resistance fixture includes a fixture fixing plate, which is movably connected to the slide rail through a matching slide block of the slide rail, and a first cylinder is arranged in the fixture fixing plate, and the first cylinder is connected to a blade fixing insulating block through an eight-shaped mechanism, and an insulation fixture blade is arranged on the blade fixing insulating block;

[0008] The pressure-resistant pulse test station includes a pressure-resistant fixture, which is movably mounted on a slide rail. The pressure-resistant fixture includes a connecting sliding mechanism, a hydraulic spring, a pressure-resistant insulating block and a pressure-resistant fixture blade. The connecting sliding mechanism is movably connected to the slide rail. A hydraulic spring is provided on the connecting sliding mechanism. A pressure-resistant insulating block is provided on the hydraulic spring. The pressure-resistant insulating block is provided with a pressure-resistant fixture blade.

[0009] The DC resistance test station includes a DC resistance fixture, which is movably mounted on a slide rail; the DC resistance fixture includes a connecting sliding assembly, which is provided with a protective cover, a second cylinder is provided in the protective cover, the second cylinder is provided with a resistance fixture insulating block, and the resistance fixture insulating block is provided with a resistance fixture blade;

[0010] The AC load inductance power loss test station includes a load inductance loss test fixture, which includes a fixture base plate, on which upper and lower floating slide rails are provided, on which slide rail fixings are provided, and the slide rail fixings are movably installed on the slide rails; on the fixture base plate, a third cylinder is provided, on which an inductance loss insulating block is provided, and on which a conductive copper block and a short-circuit copper bus are provided.

[0011] As a further solution of the present invention: the carrier plate includes a jig base plate, a plurality of insulating supports are provided on the jig base plate, the product support plate is connected to the insulating supports by screws, positioning pins are provided on the product support plate, and magnetic retaining edges are provided on the sides of the product support plate; guide wheels are provided at the four corners of the jig base plate.

[0012] As a further solution of the present invention: the fixture bottom plate and the product support plate are both made of aluminum material.

[0013] As a further solution of the present invention: the insulation resistance clamps are provided in six groups, and one group of slide rails is provided with three groups of insulation resistance clamps.

[0014] As a further solution of the present invention: the pressure-resistant clamps are provided in six groups, and each group of slide rails is provided with three groups of pressure-resistant clamps.

[0015] As a further solution of the present invention: the DC resistance clamps are provided in six groups, and each group of slide rails is provided with a DC resistance clamp.

[0016] As a further solution of the present invention: the load inductance loss test fixtures are provided in six groups, and each group of slide rails is provided with three groups of load inductance loss test fixtures.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention greatly improves the efficiency of electrical performance testing, reduces the labor intensity of operators, and automatically records the tested data into a computer to realize data storage. It can ensure products of different models and sizes, greatly improve work efficiency, reduce the labor intensity of operators; reduce the risk of electric shock to employees, realize automatic data reading, and is conducive to improving production informatization and reducing quality risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic structural diagram of a three-phase reactor testing device disclosed in an embodiment.

[0020] Figure 2 The present invention is a schematic structural diagram of a carrier board in a three-phase reactor testing device disclosed in an embodiment.

[0021] Figure 3 The present invention is a structural schematic diagram of an insulation resistance test station in a three-phase reactor test device disclosed in an embodiment.

[0022] Figure 4 The present invention is a schematic structural diagram of an insulation resistance fixture in a three-phase reactor testing device disclosed in an embodiment.

[0023] Figure 5 This is a schematic diagram of the structure of a withstand voltage pulse test station in a three-phase reactor test device disclosed in an embodiment.

[0024] Figure 6 The present invention is a structural schematic diagram of a DC resistance test station in a three-phase reactor test device disclosed in an embodiment.

[0025] Figure 7 The present invention is a schematic structural diagram of a DC resistance fixture in a three-phase reactor testing device disclosed in an embodiment.

[0026] Figure 8 The present invention is a structural schematic diagram of an AC load inductive power loss test station in a three-phase reactor test device disclosed in an embodiment.

[0027] Fig. 9 The present invention is a schematic structural diagram of a load inductance loss test fixture in a three-phase reactor test device disclosed in an embodiment.

[0028] The reference numerals in the figure are: 1, frame; 2, carrier plate; 3, insulation resistance test station; 4, withstand voltage pulse test station; 5, DC resistance test station; 6, AC load inductance power loss test station; 7, three-phase reactor; 21, product support plate; 22, insulation support; 23, fixture bottom plate; 24, positioning pin; 25, guide wheel; 26, magnetic retaining edge; 31, slide rail; 32, insulation resistance fixture; 321, slide rail matching slider; 322, fixture fixing plate; 323, blade fixing insulation block; 324, first cylinder; 325, eight-shaped mechanism; 326, insulation Clamp blade; 41. Pressure-resistant clamp; 411. Connecting sliding mechanism; 412. Hydraulic spring; 413. Pressure-resistant insulating block; 414. Pressure-resistant clamp blade; 51. DC resistance clamp; 511. Connecting sliding assembly; 512. Protective cover; 513. Second cylinder; 514. Resistance clamp insulating block; 515. Resistance clamp blade; 61. Load inductance loss test fixture; 611. Fixture base plate; 612. Slide rail fixings; 613. Up and down floating slide rails; 614. Third cylinder; 615. Inductance loss insulating block; 616. Conductive copper block; 617. Short-circuit copper busbar. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", and "connected" should be understood in a broad sense; for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, or an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figure 1-9A three-phase reactor testing device comprises a frame 1, on which a carrier plate 2 is movably provided, on which a three-phase reactor 7 can be continuously installed, and on which an insulation resistance test station 3, a withstand voltage pulse test station 4, a DC resistance test station 5 and an AC load inductance power loss test station 6 are sequentially provided. The carrier plate 2 carries the three-phase reactor 7 through the insulation resistance test station 3, the withstand voltage pulse test station 4, the DC resistance test station 5 and the AC load inductance power loss test station 6 in sequence. The present invention adopts four stations to separately detect various electrical properties of the reactor. To meet the needs of different product sizes, the fixture of each station is adjustable and has a special structure. The product is manually placed on the fixture board, and the fixture board passes through the fixture of each station respectively under the support of the double-speed chain assembly line, and different electrical performance tests are completed respectively, so that the product can be tested once and all electrical performance parameters are automatically recorded.

[0032] The carrier plate 2 includes a fixture base plate 23, on which a plurality of insulating supports 22 are arranged, a product support plate 21 is connected to the insulating supports 22 by screws, a positioning pin 24 is arranged on the product support plate 21, a magnetic retaining edge 26 is arranged on the side of the product support plate 21, and guide wheels 25 are arranged at the four corners of the fixture base plate 23; the fixture base plate 23 slides on the assembly line, which needs to have a certain strength and be light, so aluminum is selected, and the guide wheels 25 can effectively reduce the friction between the fixture plate and the edge of the assembly line during the flow process, ensuring that the fixture plate flows on the assembly line without stagnation, and the insulating supports 22 is located between the product support plate 21 and the fixture bottom plate 23, and plays an insulating role between the two plates to prevent the entire machine from being energized during the test, causing the risk of electric shock to personnel and interfering with the entire test data. The product support plate 23 is made of aluminum to ensure conductivity with the metal plate at the bottom of the product, that is, the electrical performance test requirements, and to ensure the lightness of the entire carrier plate. The positioning pin 26 and the magnetic retaining edge 24 are used to limit the product. The bottom plate hole of the product hardware is placed on the positioning pin 24, and the bottom plate is attracted by the magnetic retaining edge to reduce the shaking of the product when the product flows on the assembly line with the carrier plate.

[0033] The insulation resistance test station 3 includes an insulation resistance fixture 32 and a slide rail 31. The slide rail 31 is provided with two groups. The slide rail 31 is arranged on the frame 1. One group of the slide rails 31 is provided with three groups of insulation resistance fixtures 32.

[0034] The three sets of insulation resistance fixtures 32 include a fixture fixing plate 322, which is movably connected to the slide rail 31 through a matching slider 321 for the slide rail, a first cylinder 324 is arranged in the fixture fixing plate 322, and the first cylinder 324 is connected to a blade fixing insulating block 323 through an eight-shaped mechanism 325, and an insulating fixture blade 326 is arranged on the blade fixing insulating block 323; there are six insulation resistance fixtures in total, and three fixtures are installed on each slide rail, and the fixture can move left and right on the slide rail; the fixture uses a blade to clamp the transformer nut, and an insulation impedance test is performed here, which requires checking the insulation performance of the bolts and the inside of the transformer, and the surface of the transformer is covered with a layer of black paint, and the black paint needs to be pierced to confirm that the circuit is turned on before the test can be performed; The insulation resistor fixture is assembled together with the slide rail and the slider to achieve free horizontal movement to match the screw position of different products. The front and rear moving mechanism is used to fine-tune the front and rear position of the entire fixture to better adapt to the product screw position. For the same product, the position of the screw relative to the insulation resistor fixture may deviate due to the different positions of employees on the carrier plate. The cylinder moves back and forth to pull the eight-shaped mechanism to open and close along the center pin, and finally the blade closes to pierce the paint layer on the bolt surface. After opening, the product test state is exited. The blade insulation fixing block itself is an insulating material. During the test, the insulation resistance meter inputs the voltage into the product bolt through the blade. The insulating part can effectively block the input voltage from flowing into the test fixture, causing the entire machine to be energized.

[0035] The pressure pulse test station 4 includes a pressure-resistant clamp 41, which is provided with six groups. The pressure-resistant clamp 41 is movably mounted on the slide rail 31, and each group of slide rails 31 is provided with three groups of pressure-resistant clamps 41; the pressure-resistant clamp 41 includes a connecting sliding mechanism 411, a hydraulic spring 422, a pressure-resistant insulating block 413 and a pressure-resistant clamp blade 414, the connecting sliding mechanism 411 is movably connected to the slide rail 31, a hydraulic spring 422 is provided on the connecting sliding mechanism 411, a pressure-resistant insulating block 413 is provided on the hydraulic spring 422, and the pressure-resistant insulating block 413 is installed Install the pressure-resistant fixture blade 414; the workstation tests pressure resistance and pulse, because the supply voltage of the instruments with two functions is similar, they are put in one workstation for testing; there are a total of six pressure-resistant fixtures and they are the same in the same workstation, all fixtures can be moved horizontally or up and down, the terminal blocks of the same product may have different lengths and skewed end faces due to differences in manual production, and the end faces are sticky and cannot be cleaned during paint dipping; the hydraulic spring effectively solves the testing problem caused by the different lengths of the terminal blocks, and the pressure-resistant fixture blade can effectively pierce the paint layer on the end faces of the terminal blocks to solve the conduction problem during testing.

[0036] The DC resistance test station 5 includes a DC resistance fixture 51, and the DC resistance fixture 51 is provided with six groups. The DC resistance fixture 51 is movably mounted on the slide rail 31, and each group of the slide rail 31 is provided with a DC resistance fixture 51;

[0037] The DC resistance fixture 51 includes a connecting sliding component 511, a protective cover 512 is provided on the connecting sliding component 511, a second cylinder 513 is provided in the protective cover 512, the second cylinder 513 is provided with a resistance fixture insulating block 514, and the resistance fixture insulating block 514 is provided with a resistance fixture blade 515; the third station tests the DC resistance, and the fixture is different in that the second station corresponds to one contact blade for each terminal row, and the third station corresponds to two contact blades for each terminal row. The reason is that the Kelvin connection method is used when measuring the DC current, and a loop is formed between two contacts and one terminal row through the instrument to offset the internal resistance of the line.

[0038] The AC load inductance power loss test station 6 includes a load inductance loss test fixture 61, which includes a fixture base plate 611, on which an upper and lower floating slide rail 613 is provided, and on which a slide rail fixing part 612 is provided, and the slide rail fixing part 612 is movably mounted on the slide rail 31; the fixture base plate 611 is provided with a third cylinder 614, on which an inductance loss insulating block 615 is provided, and on which a conductive copper block 616 and a short-circuit copper bus 617 are provided; the load inductance loss test fixture 61 is provided with six groups, and each group of slide rails 31 is provided with three groups of load inductance loss test fixtures 61; the fourth station is for load testing, which tests the product inductance under load state, and the power Rate loss, etc. Under normal conditions, it needs to withstand hundreds of amperes of current. During the four-station test, all terminal blocks enter the fixture, and the cylinder is pressed to power the product through the conductive copper block. The product is three-item, and the three load inductance loss test fixtures respectively power the three terminal blocks on the top of the product to form a three-phase electrical circuit. Under the test state of the product, the three terminal blocks below need to be short-circuited. The short-circuited copper busbar short-circuits the three terminal blocks below the product when the terminal block is clamped by the fixture. Similarly, the terminal blocks of the product line packages are all manually made, not only of different lengths, but also of uneven heights. In order to cope with the uneven height of the terminal blocks, up and down floating rails are added to the test fixture to make the fixture adapt to the height of the terminal blocks. After the conductive copper block clamps the terminal block, it is isolated from the test fixture and the entire machine through the insulating block and the test fixture.

[0039] The present invention greatly improves the efficiency of electrical performance testing, reduces the labor intensity of operators, and automatically records the tested data into a computer to achieve data storage.

[0040] The three-phase reactor test equipment of the present invention has all fixtures that can be adjusted up, down, left, and right. In order to adapt to product manufacturing errors, an automatic fine-tuning mechanical device is also added. This ensures that products of different models and sizes, and products of the same model with large manufacturing errors can all be used stably on the test machine;

[0041] The present invention greatly improves work efficiency and reduces the labor intensity of operators; reduces the risk of electric shock to employees, realizes automatic data reading, and is conducive to improving production informatization and reducing quality risks.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention, and any reference numerals in the claims should not be considered as limiting the claims involved.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A three-phase reactor testing device, characterized in that: The invention comprises a frame (1), wherein a carrier plate (2) is movably provided on the frame (1), a three-phase reactor (7) can be continuously installed on the carrier plate (2), and an insulation resistance test station (3), a withstand voltage pulse test station (4), a DC resistance test station (5) and an AC load inductance power loss test station (6) are sequentially provided on the frame (1); The insulation resistance test station (3) comprises an insulation resistance fixture (32) and a slide rail (31), wherein the slide rail (31) is provided with two groups and the slide rail (31) is arranged on a frame (1); the insulation resistance fixture (32) comprises a fixture fixing plate (322), the fixture fixing plate (322) is movably connected to the slide rail (31) via a slide rail matching slider (321), a first cylinder (324) is arranged in the fixture fixing plate (322), the first cylinder (324) is connected to a blade fixing insulating block (323) via an eight-shaped mechanism (325), and an insulation fixture blade (326) is arranged on the blade fixing insulating block (323); The withstand voltage pulse test station (4) comprises a withstand voltage fixture (41), the withstand voltage fixture (41) is movably mounted on a slide rail (31), the withstand voltage fixture (41) comprises a connecting sliding mechanism (411), a hydraulic spring (422), a withstand voltage insulating block (413) and a withstand voltage fixture blade (414), the connecting sliding mechanism (411) is movably connected to the slide rail (31), a hydraulic spring (422) is arranged on the connecting sliding mechanism (411), a withstand voltage insulating block (413) is arranged on the hydraulic spring (422), and the withstand voltage fixture blade (414) is mounted on the withstand voltage insulating block (413); The DC resistance test station (5) comprises a DC resistance fixture (51), which is movably mounted on a slide rail (31); the DC resistance fixture (51) comprises a connecting sliding assembly (511), a protective cover (512) is provided on the connecting sliding assembly (511), a second cylinder (513) is provided in the protective cover (512), the second cylinder (513) is provided with a resistance fixture insulating block (514), and a resistance fixture blade (515) is provided on the resistance fixture insulating block (514); The AC load inductance power loss test station (6) comprises a load inductance loss test fixture (61), the load inductance loss test fixture (61) comprises a fixture base plate (611), an up-and-down floating slide rail (613) is provided on the fixture base plate (611), a slide rail fixing member (612) is provided on the up-and-down floating slide rail (613), and the slide rail fixing member (612) is movably mounted on the slide rail (31); a third cylinder (614) is provided on the fixture base plate (611), an inductance loss insulation block (615) is provided on the third cylinder (614), and a conductive copper block (616) and a short-circuit copper bus (617) are provided on the inductance loss insulation block (615).

2. A three-phase reactor testing device according to claim 1, characterized in that: The carrier plate (2) comprises a jig base plate (23), a plurality of insulating supports (22) are arranged on the jig base plate (23), a product support plate (21) is connected to the insulating supports (22) by screws, a positioning pin (24) is arranged on the product support plate (21), and a magnetic retaining edge (26) is arranged on the side of the product support plate (21); guide wheels (25) are arranged at the four corners of the jig base plate (23).

3. A three-phase reactor testing device according to claim 2, characterized in that: The fixture bottom plate (23) and the product support plate (21) are both made of aluminum.

4. A three-phase reactor testing device according to claim 3, characterized in that: The insulation resistance clamps (32) are provided in six groups, and one group of slide rails (31) is provided with three groups of insulation resistance clamps (32).

5. A three-phase reactor testing device according to claim 4, characterized in that: The pressure-resistant clamps (41) are provided in six groups, and each group of slide rails (31) is provided with three groups of pressure-resistant clamps (41).

6. A three-phase reactor testing device according to claim 5, characterized in that: The DC resistance clamps (51) are provided in six groups, and each group of slide rails (31) is provided with a DC resistance clamp (51).

7. A three-phase reactor testing device according to claim 6, characterized in that: The load inductance loss test fixtures (61) are provided in six groups, and each group of slide rails (31) is provided with three groups of load inductance loss test fixtures (61).

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