Flexible measuring mechanism for camber of IGBT (Insulated Gate Bipolar Translator) module substrate

Abstract

The utility model discloses an IGBT module substrate camber flexible measuring mechanism which comprises a measuring device and a lifting driving device, the measuring device is installed on the front side of the lifting driving device, and the lifting driving device can drive the measuring device to move; the measuring device comprises a supporting frame body, the top of the supporting frame body is provided with an image monitoring piece for carrying out image positioning on the module, and a laser probe for measuring the module is installed at the bottom of the supporting frame body and below the image monitoring piece. Through mutual cooperation of the measuring device and the lifting driving device, flexible measurement of the camber of the IGBT module substrate is achieved, meanwhile, the device is further provided with the image positioning monitoring part used for positioning the module substrate, then measurement is conducted through the laser probe, the measurement accuracy of the substrate is ensured, the detection time is greatly shortened, and the efficiency is improved; by improving the flexibility of the driving device, flexible measurement of the camber of various different IGBT module substrates is realized, and the flexibility and compatibility of detection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of IGBT module substrate arch measurement, in particular to an IGBT module substrate arch flexible measurement mechanism. Background Art

[0002] IGBT (Insulated Gate Bipolar Transistor) is a new type of power semiconductor field-controlled self-turning device that combines the high-speed performance of power MOSFET with the low resistance of bipolar devices. It has the characteristics of high input impedance, low voltage control power consumption, simple control circuit, high voltage resistance, and large current bearing. It has been widely used in various power conversions.

[0003] The IGBT module mainly includes a copper-clad ceramic substrate structure (DBC), IGBT chip, diode chip, NTC temperature sensor, power terminal, signal terminal, etc. Among them, the substrate is particularly important as the carrier of the IGBT module. At present, the measurement mechanism of the IGBT substrate on the market has a single measurement type and low efficiency. How to make the IGBT substrate measurement more intelligent, flexible, highly compatible and flexible is an urgent need in the industry, and it is also a difficulty that everyone is eager to break through. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to provide a flexible and compatible camber measuring mechanism for an IGBT module substrate.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A flexible measuring mechanism for the camber of an IGBT module substrate comprises a measuring device and a lifting drive device, wherein the measuring device is installed on the front side of the lifting drive device, and the lifting drive device can drive the measuring device to move;

[0007] The measuring device comprises a supporting frame, an image monitoring component for image positioning of the module is arranged on the top of the supporting frame, and a laser probe for measuring the module is installed at the bottom of the supporting frame and below the image monitoring component.

[0008] The present application realizes flexible measurement of the curvature of the IGBT module substrate through the mutual cooperation of the measuring device and the lifting drive device. At the same time, the present application is also provided with an image positioning monitoring device to position the module substrate, and then measure it through a laser probe. This method ensures the accuracy of the substrate measurement, greatly shortens the detection time, and improves efficiency. By utilizing the flexibility of the lifting drive device, flexible measurement of the curvature of a variety of different IGBT module substrates is achieved, thereby improving the flexibility and compatibility of detection.

[0009] As a further solution of the utility model: the supporting frame includes an adapter plate, a transverse plate, a vertical plate and a horizontal plate, wherein the horizontal plate and the transverse plate are detachably connected via the vertical plate, the three forming an inwardly concave frame, and an adapter plate is also installed on the top of the transverse plate, and the image monitoring component is installed on one side of the adapter plate.

[0010] As a further solution of the utility model: the image monitoring component is a camera and a lens, wherein the camera is detachably mounted on the adapter plate via a camera bracket, the bottom of the camera is connected to the lens, and the lens is detachably mounted on the adapter plate via a lens bracket.

[0011] As a further solution of the utility model: the laser probe is detachably mounted to one side of the bottom of the horizontal plate via a laser probe clamp, and a light source is also provided on one side of the laser probe, wherein the light source is detachably mounted on one end of the horizontal plate via a light source bracket, and the light source is located directly below the lens.

[0012] As a further solution of the utility model: an adapter plate reinforcement rib is installed on one side of the adapter plate and the cross plate, a wire trough bracket is connected to the adapter plate reinforcement rib, and a U-shaped wire trough is installed on the wire trough bracket.

[0013] As a further solution of the utility model: a wire bracket is also installed on the front side of the adapter plate.

[0014] As a further solution of the utility model: the lifting drive device includes a fixed plate, wherein a servo motor, a guide rail, a slider and a connecting plate are provided at the front end of the fixed plate, the guide rail is installed under the servo motor, the servo motor drives the slider to slide along the guide rail, and the slider is detachably connected to the measuring device through the connecting plate.

[0015] As a further solution of the utility model: the servo motor is detachably mounted on the fixed plate via a servo motor bracket.

[0016] As a further solution of the utility model: a positive limit photoelectric device, an origin limit photoelectric device and a negative limit photoelectric device are also installed on the front side of the fixed plate.

[0017] As a further solution of the utility model: a fixing seat is also installed on the rear side of the fixing plate.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The present application realizes flexible measurement of the curvature of the IGBT module substrate through the cooperation between the measuring device and the lifting drive device. At the same time, the present application also provides an image positioning monitoring component to position the module substrate, and then measures it through a laser probe. This method ensures the accuracy of the substrate measurement, greatly shortens the detection time, and improves the efficiency. By utilizing the flexibility of the lifting drive device, flexible measurement of the curvature of various IGBT module substrates is realized, thereby improving the flexibility and compatibility of the detection.

[0020] 2. The application can make the routing of equipment components more reasonable, make the equipment movement safer, and ensure the safe operation of the equipment through the reasonable design of the U-shaped wire trough, wire trough bracket, and wire bracket. Through the cooperation of the measuring mechanism and the lifting mechanism, the flexible measurement of the arch of various IGBT module substrates is realized;

[0021] 3. The adapter plate, transverse plate, vertical plate and horizontal plate of this application all adopt the design of weight-reducing holes, which reduces the overall weight of the measuring mechanism and improves the operating speed; the mechanism structure is simple and easy to install; the adapter plate, transverse plate, vertical plate and horizontal plate are all equipped with reinforcing ribs to stabilize the overall structure;

[0022] 4. The lifting mechanism of the present application drives the measuring mechanism to move, and the servo motor pushes the slider to realize the movement of the measuring mechanism, so that the arch measurement can meet the flexible measurement of IGBT module substrates of various specifications, thereby improving the compatibility of IGBT module substrate measurement; by adding limit photoelectric, it is effectively prevented that the servo motor reaches the hard limit due to excessive speed of the servo motor, thereby improving the reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the IGBT module substrate camber flexibility measurement mechanism according to an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the measuring device of the embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the lifting drive device of an embodiment of the utility model;

[0026] Explanation of the accompanying drawings: 1. Measuring device; 101. Laser probe clamp; 102. Laser probe; 103. Light source; 104. Light source bracket; 105. Lens; 106. Lens bracket; 107. Camera; 108. Camera bracket; 109. Adapter plate; 110. Adapter plate reinforcement rib; 111. Horizontal plate; 112. Horizontal plate reinforcement rib; 113. Vertical plate; 114. Horizontal plate; 115. Horizontal plate reinforcement rib; 2. U-shaped wire trough; 3. Wire trough bracket; 4. Wire bracket; 5. Lifting drive device; 501. Servo motor; 502. Servo motor bracket; 503. Connecting plate; 504. Slider; 505. Fixed seat; 506. Fixed plate; 507. Guide rail; 508. Positive limit photoelectric; 509. Origin limit photoelectric; 510. Negative limit photoelectric. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1 A flexible measuring mechanism for the camber of an IGBT module substrate comprises a measuring device 1, a U-shaped wire groove 2, a wire groove bracket 3, a wire bracket 4 and a lifting drive device 5, wherein the measuring device 1 is arranged at the front side of the lifting drive device 5, and the lifting drive device 5 can drive the measuring device 1 to move up and down in the vertical direction, wherein the wire groove bracket 3 is arranged at one side of the lifting drive device 5, and the U-shaped wire groove 2 is installed on the wire groove bracket 3, and the wire in the U-shaped wire groove 2 connects the lifting drive device 5 and the measuring device 1; a wire bracket 4 connected to the wire is also provided on the measuring device 1, so when the measuring device 1 moves up and down, the U-shaped wire groove 2 is also deformed accordingly, and the wire also moves up and down accordingly.

[0029] Reference Figure 2 The measuring device 1 includes an adapter plate 109, a transverse plate 111, a vertical plate 113 and a horizontal plate 114, wherein the horizontal plate 114 and the transverse plate 111 are detachably connected via the vertical plate 113, and the three form an inner concave frame, and the adapter plate 109 is also installed on the top of the transverse plate 111; it should be noted here that the adapter plate 109, the transverse plate 111, the vertical plate 113 and the horizontal plate 114 are all provided with mounting holes, which are used for detachable connection with other structural members;

[0030] At the corners of the adapter plate 109 and the horizontal plate 111, a detachable connection is made through the adapter plate reinforcement rib 110 to realize the fasteners connecting the adapter plate 109 and the horizontal plate 111; at the corners of the horizontal plate 111 and the vertical plate 113, a detachable connection is made through the horizontal plate reinforcement rib 112 to realize the fasteners connecting the horizontal plate 111 and the vertical plate 113, wherein the adapter plate reinforcement rib 110 and the horizontal plate reinforcement rib 112 are both "L"-shaped structures; horizontal plate reinforcement ribs 115 are installed at the bottom of the horizontal plate 114 to realize the fastening of the horizontal plate 114.

[0031] Furthermore, the front side of the adapter plate 109 is detachably connected to the camera 107 via the camera bracket 108. It should be noted that the detachable connection of the present application can be connected and installed using bolts or pins, etc., and the present application does not limit this. The bottom of the camera 107 is connected to the lens 105, and the lens 105 is detachably installed on the adapter plate 109 via the lens bracket 106.

[0032] Furthermore, a laser probe clamp 101 is installed on the bottom front side of the horizontal plate 114, and a laser probe 102 is detachably connected to the laser probe clamp 101, and the laser probe 102 is located below the lens 105. A light source 103 is also provided on one side of the laser probe 102, wherein the light source 103 is detachably mounted on one end of the horizontal plate 114 through a light source bracket 104, and the light source 103 is located directly below the lens 105.

[0033] Reference Figure 3 The lifting drive device 5 includes a fixed plate 506, wherein the front end of the fixed plate 506 is provided with a servo motor 501, a guide rail 507, a slider 504 and a connecting plate 503, the guide rail 507 is installed below the servo motor 501, the servo motor 501 drives the slider 504 to slide along the guide rail 507, and the slider 504 is detachably connected to the measuring device 1 through the connecting plate 503, so that the servo motor 501 can drive the slider 504 to slide on the guide rail 507, and the slider 504 drives the connecting plate 503 to move up and down, thereby further driving the measuring device 1 to move up and down as a whole. The servo motor 501 is detachably installed on the fixed plate 506 through the servo motor bracket 502, and a fixing seat 505 is also installed on the rear side of the fixed plate 506, and the fixing seat 505 is used to support and fix the entire lifting drive device 5.

[0034] Reference Figure 3 A positive limit photoelectric 508, an origin limit photoelectric 509 and a negative limit photoelectric 510 are also installed on the front side of the fixed plate 506. By adding limit photoelectrics on the side of the slider 501, the servo motor 501 is effectively prevented from reaching the hard limit due to excessive speed, thereby improving the reliability of the equipment.

[0035] The specific operating principles of this application are as follows:

[0036] When in use, the staff can adjust the height position of the measuring device 1 according to the needs, that is, by controlling the servo motor 501, the servo motor 501 drives the slider 501 to move up and down along the guide rail 507, and the slider 501 can drive the connecting plate 503 to move up and down, and the connecting plate 503 drives the measuring device 1 up and down, thereby adjusting the corresponding positions of the camera 107, the lens 105, the light source 103 and the laser probe 102;

[0037] The present application can accurately measure the curvature of the position specified by the user through the guidance of the camera 107, guide the camera to capture three positioning images on the IGBT module, and determine the coordinate relationship between the camera center and the measured product; then, according to the relative position of the center of the camera 107 and the center of the laser probe 102, the coordinate system conversion relationship between the center of the laser probe 102 and the measured product is obtained, and the IGBT module is driven to move. After the IGBT module moves, the ranging value of the laser probe 102 is obtained, and all the measured values ​​are obtained as pre-processed data of the curvature of the substrate. Then, all the values ​​are fitted into a plane through the least squares method, and the distance set from all the measuring points to the plane is calculated. The extreme value of the distance set is calculated as the curvature value of the substrate.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An IGBT module substrate camber flexibility measurement mechanism, characterized in that: The measuring device (1) comprises a measuring device (1) and a lifting drive device (5), wherein the measuring device (1) is installed on the front side of the lifting drive device (5), and the lifting drive device (5) can drive the measuring device (1) to move; The measuring device (1) comprises a support frame, the top of which is provided with an image monitoring component for image positioning of the module, and the bottom of the support frame and below the image monitoring component is provided with a laser probe (102) for measuring the module.

2. The IGBT module substrate camber flexibility measurement mechanism according to claim 1, characterized in that: The support frame comprises an adapter plate (109), a transverse plate (111), a vertical plate (113) and a horizontal plate (114), wherein the horizontal plate (114) and the transverse plate (111) are detachably connected via the vertical plate (113), and the three form an inner concave frame, and an adapter plate (109) is also installed on the top of the transverse plate (111), and the image monitoring component is installed on one side of the adapter plate (109).

3. The IGBT module substrate camber flexibility measurement mechanism according to claim 2, characterized in that: The image monitoring component is a camera (107) and a lens (105), wherein the camera (107) is detachably mounted on an adapter plate (109) via a camera bracket (108), the bottom of the camera (107) is connected to the lens (105), and the lens (105) is detachably mounted on the adapter plate (109) via a lens bracket (106).

4. The IGBT module substrate camber flexibility measurement mechanism according to claim 2, characterized in that: The laser probe (102) is detachably mounted on one side of the bottom of the horizontal plate (114) via a laser probe clamp (101); a light source (103) is also provided on one side of the laser probe (102); the light source (103) is detachably mounted on one end of the horizontal plate (114) via a light source bracket (104), and the light source (103) is located directly below the lens (105).

5. The IGBT module substrate camber flexibility measurement mechanism according to claim 2, characterized in that: An adapter plate reinforcing rib (110) is installed on one side of the adapter plate (109) and the cross plate (111), a wire trough bracket (3) is connected to the adapter plate reinforcing rib (110), and a U-shaped wire trough (2) is installed on the wire trough bracket (3).

6. The IGBT module substrate camber flexibility measurement mechanism according to claim 5, characterized in that: A wire support (4) is also installed on the front side of the adapter plate (109).

7. The IGBT module substrate camber flexibility measurement mechanism according to claim 1, characterized in that: The lifting drive device (5) includes a fixed plate (506), wherein a servo motor (501), a guide rail (507), a slider (504) and a connecting plate (503) are provided at the front end of the fixed plate (506), the guide rail (507) is installed below the servo motor (501), the servo motor (501) drives the slider (504) to slide along the guide rail (507), and the slider (504) is detachably connected to the measuring device (1) via the connecting plate (503).

8. The IGBT module substrate camber flexibility measurement mechanism according to claim 7, characterized in that: The servo motor (501) is detachably mounted on the fixing plate (506) via a servo motor bracket (502).

9. The IGBT module substrate camber flexibility measurement mechanism according to claim 7, characterized in that: A positive limit photoelectric sensor (508), an origin limit photoelectric sensor (509) and a negative limit photoelectric sensor (510) are also installed on the front side of the fixed plate (506).

10. The IGBT module substrate camber flexibility measurement mechanism according to claim 7, characterized in that: A fixing seat (505) is also installed on the rear side of the fixing plate (506).

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