High-power thyristor voltage drop testing device

Abstract

The utility model relates to the technical field of high-power thyristor voltage drop testing, and discloses a high-power thyristor voltage drop testing device, which is characterized in that the edge of a base is provided with a vertical plate, the vertical plate is provided with a voltage drop control mechanism, the voltage drop control mechanism comprises a top voltage drop cylinder, and the output of the voltage drop cylinder is connected with a voltage drop plate. A pressure probe is arranged on the bottom surface of the pressure drop plate, a cathode interface and a gate interface are arranged on the probe, a thyristor seat is arranged below the probe, and an anode interface is arranged on the thyristor seat. Rapid positioning and measurement of the voltage drop of the high-power thyristor are realized, the test efficiency is improved, and the product circulation time is shortened. Through the voltage drop control mechanism, the thyristor can be rapidly conducted, voltage drop measurement under different peak currents is achieved, and the requirements of different process products are met. Measurement and result reading of different process products are more convenient, and an accurate process basis is provided for conformity of a current process result of a process. Through the test of judging the process in advance, the problem is prevented from being found after the product is packaged, the risk of product scrapping is reduced, and meanwhile, the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -power thyristor pressure drop test technical field, concretely for a kind of high -power thyristor pressure drop testing device. BACKGROUND

[0002] At present, with the sustained progress and maturity of domestic high-power device technology, the market demand of high-voltage high-power thyristor is rising year by year, and its pace of import substitution is also accelerating steadily. Under this background, the key manufacturing process of thyristor faces new challenges: due to the increase of thyristor size, its current-carrying capacity is significantly enhanced, but the technical problem of thyristor terminal voltage drop test is increasingly prominent.

[0003] The traditional test method, i.e. using small current to estimate the thyristor voltage drop under large current, can provide certain reference, but it is difficult to accurately reflect the actual situation under large current, which can easily lead to the problem of substandard voltage drop. Therefore, the conventional test scheme cannot meet the test requirements of such high-voltage high-power thyristor.

[0004] At present, the method widely used in the industry is to test the voltage drop after the sample packaging is completed, and to adjust accordingly. However, this method not only causes waste of materials, but also increases the risk and uncertainty in the production process, and prolongs the circulation time of the product. If the test result is not satisfactory, cutting treatment is required, which undoubtedly further increases the scrap cost and time cost.

[0005] Therefore, based on the above technical problems, it is necessary for the technicians in the field to develop a high-power thyristor voltage drop testing device. CONTENT OF UTILITY MODEL

[0006] The utility model aims to provide a kind of high-power thyristor pressure drop testing device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A kind of high-power thyristor pressure drop testing device, including base, the base edge is equipped with vertical plate, the vertical plate is provided with pressure drop control mechanism, the pressure drop control mechanism includes the pressure drop cylinder installed in vertical plate top, the pressure drop cylinder output end is connected with pressure drop plate, the pressure drop plate bottom surface is equipped with pressure probe, the pressure probe is provided with cathode interface, adjacent side is provided with gate interface, the pressure probe below is provided with thyristor seat, the thyristor seat is equipped with anode interface.

[0009] As a preferred technical scheme, the cathode interface is connected with cathode lead, the gate interface is connected with gate lead, and the anode interface is connected with anode lead.

[0010] As a preferred technical scheme, the cathode wire, the gate wire and the anode wire are connected with the DBC-A thyristor V TM tester.

[0011] As a preferred technical scheme, guide sleeves are arranged through the two sides of the pressure drop plate, guide rods are arranged in the guide sleeves, the guide sleeves and the guide rods slide, rod seats are arranged at the top ends of the guide rods, and the rod seats are connected with the vertical plates.

[0012] As a preferred technical scheme, the pressure probe is internally provided with a pressure sensor for detecting the driving pressure of the pressure drop cylinder.

[0013] As a preferred technical scheme, an insulating layer is arranged on the side wall of the pressure drop plate close to the vertical plate.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a high -power thyristor pressure drop testing arrangement, realizes fast positioning and measures high -power thyristor pressure drop, improves testing efficiency, shortens product circulation time. Through pressure drop control mechanism, can fast conduction thyristor, realizes the pressure drop measurement under different peak current, satisfies the demand of different technology product. The measurement of different technology products is convenient, and the result reading is more convenient, and the conformity of the current process result of the process is provided accurate process basis. Through the test of technology in advance, the problem is avoided after product packaging, reduces the risk of product scrapping, reduces production cost simultaneously. The scheme can realize the peak current (10-3000A) test pressure drop, satisfies the demand of high -pressure high -power thyristor pressure drop real -time measurement, provides the judgment basis for batch production, reduces the influence to circulation efficiency and quality cost. Through the method of reducing the old process package run -off, the circulation speed of production line product is improved, and the quality stability and the whole line yield of product are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is whole structure schematic diagram of a kind of high -power thyristor pressure drop testing arrangement;

[0017] Figure 2 It is test principle structure schematic diagram of a kind of high -power thyristor pressure drop testing arrangement.

[0018] In the figure mark, 11, base; 12, vertical plate; 13, rod seat; 21, pressure drop cylinder; 22, pressure drop plate; 221, guide sleeve; 23, guide rod; 24, pressure probe; 25, cathode interface; 251, cathode wire; 26, gate interface; 261, gate wire; 27, thyristor seat; 28, anode interface; 281, anode wire. DETAILED DESCRIPTION

[0019] The features and exemplary embodiments of each aspect of the present application will be described in detail below, in order to make the purpose, technical scheme and advantages of the present application more clear and apparent, the present application will be described in further detail below in combination with the drawings and specific embodiments. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0020] As shown in Figure 1 、 Figure 2 The utility model provides a kind of high-power thyristor voltage drop testing device technical scheme: including base 11, base 11 edge is equipped with vertical plate 12. Vertical plate 12 is provided with voltage drop control mechanism, and the mechanism includes the voltage drop cylinder 21 installed on the top of vertical plate. The output end of voltage drop cylinder 21 is connected with voltage drop plate 22, and the bottom surface of voltage drop plate 22 is equipped with pressure probe 24. Pressure probe is provided with cathode interface 25 and gate interface 26, and adjacent side is provided with anode interface 28.

[0021] Among them, cathode wire 251 is connected on cathode interface 25, gate wire 261 is connected on gate interface 26, and anode wire 281 is connected on anode interface 28.

[0022] Among them, cathode wire 251, gate wire 261 and anode wire 281 are all connected with DBC-A thyristor V TM tester.

[0023] Among them, guiding sleeve 221 is arranged on both sides of voltage drop plate 22, and guiding rod 23 is installed in guiding sleeve. Guiding sleeve and guiding rod slide, and the top of guiding rod is provided with rod seat 23, and rod seat is connected with vertical plate 12.

[0024] Among them, pressure sensor is built in pressure probe 24, for detecting the driving pressure of voltage drop cylinder 21.

[0025] Among them, the side wall of voltage drop plate 22 close to vertical plate 12 is provided with insulating layer.

[0026] The working principle and use process of the utility model: the high-power thyristor to be measured is placed on thyristor seat 27, and it is ensured that its cathode, gate and anode are aligned to cathode interface 25, gate interface 26 and anode interface 28, and DBC-A thyristor V TMThe tester applies a control signal to the thyristor, starts the pressure drop cylinder 21, and drives the pressure drop plate 22 to move downward at the output end, so that the pressure probe 24 contacts the cathode of the thyristor and applies a preset pressure, the pressure of the pressure probe 24 is monitored through the pressure sensor, the pressure is ensured to be stable during the test, and the DBC-A thyristor V TM The tester displays the pressure drop data, judges whether the pressure drop of the thyristor meets the standard according to the test result, adjusts the process accordingly if the pressure drop does not meet the standard, takes out the thyristor after the test is completed, and removes the test device.

[0027] The utility model discloses can position and measure the pressure drop of high -power thyristor quickly, improve test efficiency, shorten product circulation time, and can satisfy the demand of different process products.

[0028] The above describes only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change, all should be covered in the protection scope of the utility model.

[0029] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, a particular orientation and operation, so it cannot be understood as a limitation on the utility model.

[0030] In the utility model, unless otherwise specified and limited, the terms "mounting", "setting", "connection", "fixing", "screw connection" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or can be integrated, can be mechanically connected, or can be electrically connected, can be directly connected, or can be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements, unless otherwise specified, the above-mentioned terms in the utility model can be understood according to the specific meaning of the above-mentioned terms in the utility model according to the specific situation.

[0031] In accordance with the above embodiments of the present application, these embodiments do not describe all the details, nor limit the present application to only the specific embodiments. Obviously, according to the above description, many modifications and changes can be made. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well utilize the present application and make modifications based on the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high-power thyristor voltage drop testing device, characterized in that, The utility model relates to a pressure drop control mechanism, including base (11), the base (11) edge is equipped with riser (12), be provided with pressure drop control mechanism on the riser (12), the pressure drop control mechanism includes the pressure drop cylinder (21) installed at the top of riser (12), the pressure drop plate (22) is connected to the output end of pressure drop cylinder (21), the pressure drop plate (22) bottom is equipped with pressure probe (24), be provided with cathode interface (25) on pressure probe (24), adjacent side is equipped with gate electrode interface (26), be provided with thyristor seat (27) below pressure probe (24), be equipped with anode interface (28) on thyristor seat (27).

2. A high-power thyristor voltage drop testing device according to claim 1, characterized in that: The cathode interface (25) is connected with a cathode lead (251), the gate electrode interface (26) is connected with a gate lead (261), and the anode interface (28) is connected with an anode lead (281).

3. A high-power thyristor voltage drop testing device according to claim 2, characterized in that: The cathode wire (251), the gate wire (261) and the anode wire (281) are connected with DBC-013A thyristor V TM tester.

4. A high-power thyristor voltage drop testing device according to claim 3, characterized in that: Guide sleeves (221) are provided through both sides of the pressure drop plate (22), guide rods (23) are installed in the guide sleeves (221), the guide sleeves (221) slide with the guide rods (23), and rod seats (13) are provided at the top ends of the guide rods (23), the rod seats (13) are connected with the riser (12).

5. A high-power thyristor voltage drop testing device according to claim 1, characterized in that: The pressure probe (24) is built-in with a pressure sensor for detecting the driving pressure of the pressure drop cylinder (21).

6. A high-power thyristor voltage drop testing device according to claim 1, characterized in that: The pressure drop plate (22) is provided with an insulating layer on the side wall close to the riser (12).

Images