Point inspection device and point inspection equipment

Abstract

The utility model discloses a spot inspection device and spot inspection equipment, the spot inspection device comprises a bearing platform and a detection sensor arranged in the bearing platform, the bearing platform is used for bearing an IGBT module package, the detection sensor comprises a plurality of metal sensors, the number and position of the metal sensors are in one-to-one correspondence with the number and position of a plurality of IGBT modules in the IGBT module package, and the metal sensors are arranged on the bearing platform. As the IGBT modules contain metal materials, the exact number of the IGBT modules in the packaging box body can be obtained through the metal sensor, point inspection work of products can be completed without opening the box body by damaging a sealing strip, the point inspection efficiency is high, packaging waste is avoided, and the packaging box is more environmentally friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of chip production, and particularly relates to an inspection device and an inspection equipment for inspecting the IGBT module assembly. Background Art

[0002] At the end stage of the IGBT module production process, multiple IGBT modules need to be packed in an IGBT module assembly, and seals or the like are used for packaging and sealing. Then, multiple IGBT module assemblies are stacked together for storage and transportation.

[0003] However, in order to ensure the ex-factory quality, it is also necessary to inspect the IGBT module assembly before leaving the factory, that is, it is necessary to verify the number of IGBT modules in each IGBT module assembly. At this time, it is necessary to break the seal and open the box body in the IGBT module assembly to verify the quantity. However, this inspection method not only has low efficiency, but also has problems such as damaging the seal and being less environmentally friendly. Summary of the Utility Model

[0004] The utility model aims to provide an inspection device and an inspection equipment that can inspect the number of IGBT modules without opening the package, improve the inspection efficiency and avoid packaging waste.

[0005] To solve the above technical problems, the utility model provides an inspection device for inspecting the IGBT module assembly. The IGBT module assembly includes a box body and multiple IGBT modules laid flat in the box body. The inspection device includes:

[0006] A bearing platform, the bearing platform has an upward bearing surface for bearing the IGBT module assembly;

[0007] A detection sensor is arranged on the bearing platform. The detection sensor includes multiple metal sensors laid flat under the bearing surface, and the layout of the multiple metal sensors is set to correspond to the multiple IGBT modules in the IGBT module assembly.

[0008] Optionally, the bearing platform includes a seat body and a top plate. The seat body has a chamber with an open upper side. The detection sensor is arranged in the chamber. The top plate is detachably connected to the seat body and covers the open side. The upper side of the top plate constitutes the bearing surface.

[0009] Optionally, a plurality of positioning grooves are provided on the outer periphery of the box body, and the bearing platform further includes a plurality of positioning blocks. The plurality of positioning blocks are spaced along the outer periphery of the seat body, and each positioning block protrudes upward from the bearing surface. Each positioning block is configured to be inserted into the positioning groove of the assembled IGBT module carried by the bearing surface.

[0010] Optionally, the seat body includes a bottom plate and a side edge surrounding the outer periphery of the bottom plate. The bottom plate and the side edge jointly enclose the chamber. A plurality of the metal sensors are laid flat on the upper side of the bottom plate, and a plurality of the positioning blocks are provided at the upper end of the side edge. Each positioning block is integrally formed with the side edge;

[0011] A plurality of grooves are concavely provided on the peripheral side of the top plate. Each groove penetrates the top plate in the vertical direction, and the shape of each groove is adapted to that of each positioning block. Each positioning block penetrates through each groove in a one-to-one correspondence in the vertical direction.

[0012] Optionally, each positioning block has an outer side abutting against the outer periphery of the side edge and an inner side abutting against the inner periphery of the side edge, and the size of the outer side is larger than that of the inner side.

[0013] Optionally, the inspection device further includes a weighing mechanism. The weighing mechanism includes a weighing platform and a weighing sensor. The upper side of the weighing platform is used to carry the bearing platform, and the weighing sensor is arranged on the lower side of the weighing platform for detecting the weight change of the weighing platform.

[0014] Optionally, the inspection device further includes a code reading mechanism. The code reading mechanism is arranged on one side of the weighing platform and is used to read the coded data of the assembled IGBT module carried on the bearing platform.

[0015] To solve the above technical problems, the present utility model provides an inspection device, including:

[0016] A frame, the frame having a first station, a second station, and a third station arranged in sequence along the conveying direction;

[0017] The inspection device as described above, the inspection device is movably arranged on the frame along the conveying direction;

[0018] A conveying device, arranged on the frame, the conveying device being used to sequentially convey the inspection device to the first station, the second station, and the third station; and,

[0019] A weighing mechanism, arranged on the frame, the weighing mechanism being arranged at the second station for detecting the weight of the inspection device at the second station.

[0020] Optionally, the inspection device further includes a code reading mechanism disposed at the first station for reading the coding data of the IGBT module assembly carried by the inspection device at the first station.

[0021] Optionally, the conveying device includes a conveyor belt, the middle of which has a channel penetrating it in the up and down direction. The conveyor belt carries the inspection device to sequentially convey the inspection device to the first station, the second station, and the third station.

[0022] The inspection device further includes a lifting device, which is disposed on the frame and at the second station. The lifting device is located below the conveyor belt and is telescopically disposed in the up and down direction. The weighing mechanism is disposed at the upper end of the lifting device and has a raised position where it rises through the channel to lift the inspection device at the second station, and a lowered position where it descends to separate from the inspection device.

[0023] The technical solution provided by the present utility model has the following advantages:

[0024] The inspection device provided by the present utility model includes a bearing platform and a detection sensor disposed in the bearing platform. The bearing platform is used to carry the IGBT module assembly. The detection sensor includes a plurality of metal sensors whose quantity and positions correspond one by one to the plurality of IGBT modules in the IGBT module assembly. Since the IGBT module contains a metal material, the metal sensors can be used to obtain the exact quantity of the IGBT modules in the packaging box, so that the inspection work of the product can be completed without damaging the seal and opening the box, with high inspection efficiency, avoiding packaging waste, and being more environmentally friendly. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic structural diagram of the IGBT module assembly in a stacked state;

[0027] Figure 2 It is Figure 1 a three-dimensional structural decomposition schematic diagram of the IGBT module assembly in

[0028] Figure 3Schematic perspective view of the first embodiment of the inspection device provided by the present utility model, where an IGBT module assembly is carried on the bearing platform;

[0029] Figure 4 For Figure 3 Schematic perspective view of the inspection device;

[0030] Figure 5 For Figure 4 Schematic perspective view of the inspection device, where the top plate is hidden;

[0031] Figure 6 Schematic perspective view of the second embodiment of the inspection device provided by the present utility model, where an IGBT module assembly is carried on the bearing platform;

[0032] Figure 7 For Figure 6 Schematic perspective view of the inspection device;

[0033] Figure 8 Top view of an embodiment of the inspection equipment provided by the present utility model.

[0034] Explanation of reference numerals:

[0035] 100 - Inspection device; 10 - Bearing platform; 11 - Top plate; 111 - Groove; 12 - Seat body; 121 - Bottom plate; 122 - Side edge; 13 - Chamber; 14 - Bearing surface; 15 - Positioning block; 151 - Outer edge; 152 - Inner edge; 20 - Detection sensor; 21 - Metal sensor; 30 - Weighing mechanism; 31 - Weighing platform; 32 - Weighing sensor; 40 - Code reading mechanism; 200 - Inspection equipment; 50 - Frame; 51 - First station; 52 - Second station; 53 - Third station; 60 - Conveyor device; 300 - IGBT module assembly; 301 - IGBT module; 302 - Box body; 303 - Positioning groove. Detailed implementation manners

[0036] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, rather than all, of the embodiments of the present utility model. Hereinafter, the present utility model will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0037] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence.

[0038] A spot-check device 100 provided by the present utility model is used to spot-check the number of IGBT modules 301 in the IGBT module assembly 300.

[0039] As Figure 1 and Figure 2 shown, the IGBT module assembly 300 includes a box body 302 and a plurality of IGBT modules 301 laid flat in the box body 302. After packaging, it is usually sealed with a seal. Preferably, a label can also be set to identify its coding.

[0040] As Figures 3 to 5 shown, in the first embodiment of the spot-check device 100, the spot-check device 100 includes a bearing platform 10 and a detection sensor 20. The bearing platform 10 is usually made of non-metallic material. The bearing platform 10 has an upward bearing surface 14 for stably bearing the IGBT module assembly 300. The detection sensor 20 is installed in the bearing platform 10 and is located below the bearing surface 14. The detection sensor 20 includes a plurality of metal sensors 21, that is, for detecting metal components. The layout of these metal sensors 21 corresponds to the plurality of IGBT modules 301 in the IGBT module assembly 300. Specifically, the positions and quantities of the plurality of metal sensors 21 correspond one-to-one with the plurality of IGBT modules 301 up and down. Through this design, the number of IGBT modules 301 in the IGBT module assembly 300 can be quickly and accurately detected without damaging the seal, improving the efficiency and accuracy of spot-checking. At the same time, it avoids waste caused by damaging the packaging and is more environmentally friendly.

[0041] On the basis of the previous embodiment, the bearing platform 10 further includes a seat body 12 and a top plate 11. The seat body 12 has a chamber 13 with an open upper side. The detection sensor 20 is arranged in the chamber 13, and the top plate 11 is detachably connected to the seat body 12, specifically, it can be screwed or snapped onto the seat body 12. The top plate 11 covers the open top, and its upper side forms the bearing surface 14. This structural design enables the spot-check device 100 to facilitate the maintenance and replacement of the metal sensors 21 while ensuring the stability of the bearing platform 10.

[0042] As Figure 1 and Figure 2 shown, in the IGBT module assembly 300, a plurality of positioning grooves 303 are provided on the outer periphery of the box body 302. Further, the bearing platform 10 further includes a plurality of positioning blocks 15. These positioning blocks 15 are distributed at intervals along the outer periphery of the seat body 12 and protrude upward from the bearing surface 14. Each of the positioning blocks 15 is arranged to be inserted into the positioning grooves 303 of the IGBT module assembly 300 carried by the bearing surface 14. The design of the positioning blocks 15 enables the IGBT module assembly 300 to be accurately placed on the bearing platform 10, preventing displacement during the spot-check process, thereby ensuring the detection accuracy.

[0043] Preferably, the base 12 includes a bottom plate 121 and a side edge 122 surrounding the outer periphery of the bottom plate 121. The bottom plate 121 and the side edge 122 jointly enclose the chamber 13. A plurality of the metal sensors 21 are laid flat on the upper side of the bottom plate 121. A plurality of the positioning blocks 15 are provided at the upper end of the side edge 122, and each of the positioning blocks 15 is integrally formed with the side edge 122. A plurality of grooves 111 are concavely provided on the peripheral side of the top plate 11. Each of the grooves 111 penetrates the top plate 11 in the up and down direction. The shape of each of the grooves 111 is adapted to that of each of the positioning blocks 15. Each of the positioning blocks 15 is inserted into each of the grooves 111 in a one-to-one correspondence in the up and down direction. In this way, the positions of the positioning blocks 15 and the metal sensors 21 are relatively fixed and will not move due to the assembly displacement of the top plate 11, and the positioning of the base 12 and the top plate 11 is achieved.

[0044] Most preferably, each positioning block 15 has an outer side 151 abutting against the outer periphery of the side edge 122 and an inner side 152 abutting against the inner periphery of the side edge 122, and the size of the outer side 151 is larger than that of the inner side 152. This design enables the positioning block 15 to more firmly lock the IGBT module assembly 300 when inserted into the positioning groove 303, preventing any minute movement during the spot inspection process and ensuring high-precision detection.

[0045] In the second embodiment of the spot inspection device 100 provided by the present invention, please continue to refer to Figure 6 and Figure 7 , in this embodiment, in addition to the base 10 and the detection sensor 20, the spot inspection device 100 further includes a weighing mechanism 30. The weighing mechanism 30 includes a weighing platform 31 and a weighing sensor 32. The upper side of the weighing platform 31 is used to carry the base 10, and the weighing sensor 32 is provided on the lower side of the weighing platform 31. Through the weighing mechanism 30, the weight of the IGBT module assembly 300 can be accurately measured during the spot inspection of the IGBT module assembly 300, assisting in verifying the quantity of the IGBT module 301.

[0046] Optionally, the spot inspection device 100 further includes a code reading mechanism 40. The code reading mechanism 40 is provided on one side of the weighing platform 31 and is used to read the coding data of the IGBT module assembly 300 carried on the base 10. In this way, not only can the quantity verification be performed, but also the traceability and quality management of the IGBT module assembly 300 can be realized.

[0047] Please refer to Figure 8, the present utility model further provides an inspection device 200, which includes a frame 50, an inspection device 100, a conveying device 60 and a weighing mechanism 30. The frame 50 has three workstations arranged in sequence along the conveying direction: a first workstation 51, a second workstation 52 and a third workstation 53. The inspection device 100 can be the inspection device 100 in the above first embodiment, and is movably arranged on the frame 50 along the conveying direction. The weighing mechanism 30 is arranged on the frame 50, and the weighing mechanism 30 is arranged at the second workstation 52 for detecting the weight of the inspection device 100 at the second workstation 52.

[0048] The conveying device 60 is used to convey the inspection device 100 to each workstation in sequence. For example, the IGBT module assembly 300 is loaded onto the inspection device 100 at the first workstation 51 through a manual or automatic feeding mechanism, and then the conveying device 60 conveys the IGBT module assembly 300 together with the inspection device 100 to the second workstation 52, and the weighing mechanism 30 performs weight verification on it. Then the conveying device 60 conveys the IGBT module assembly 300 together with the inspection device 100 to the third workstation 53, and manual or automatic unloading mechanism unloads it. This design makes the inspection process automated, greatly improving the efficiency and accuracy of the inspection.

[0049] Furthermore, the inspection device 200 further includes a code reading mechanism 40, which is arranged at the first workstation 51 for reading the coding data of the IGBT module assembly 300 carried by the inspection device 100 at the first workstation 51. This can read the coding data at the initial stage of the inspection, providing data support for subsequent quality management and traceability.

[0050] In order to realize the weight detection of the IGBT module assembly 300 at the second workstation 52, in an optional embodiment, the conveying device 60 includes a conveyor belt, and the middle part of the conveyor belt has a channel penetrating it in the up and down direction. The inspection device 200 further includes a lifting device, which is arranged at the second workstation 52 of the frame 50 and is located below the conveyor belt. The lifting device is telescopically arranged in the up and down direction and is used in cooperation with the weighing mechanism 30. Specifically, the weighing mechanism 30 is arranged at the upper end of the lifting device and has a raised position where it rises through the channel to lift the inspection device 100 at the second workstation 52, and a lowered position where it descends to separate from the inspection device 100. In this embodiment, the conveyor belt is used to smoothly move the inspection device 100 and the IGBT module assembly 300. At the second workstation 52, the weighing mechanism 30 is moved upward to lift the inspection device 100 and the IGBT module assembly 300 carried thereon for weight verification. After the weight weighing is completed, the weighing mechanism 30 descends back to its original position to avoid affecting the conveyor belt.

[0051] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, those of ordinary skill in the art can make other different forms of changes or modifications without creative efforts, and all of them should fall within the protection scope of the present utility model.

Claims

1. An inspection device for inspecting an IGBT module assembly, wherein the IGBT module assembly comprises a box body and a plurality of IGBT modules laid flat in the box body, characterized in that: The spot inspection device comprises: A support platform, the support platform having an upward bearing surface, the bearing surface is used to carry the IGBT module assembly; A detection sensor is installed on the support platform, and the detection sensor includes a plurality of metal sensors laid flat below the bearing surface, and the layout of the plurality of metal sensors is set to correspond to the plurality of IGBT modules in the IGBT module assembly.

2. The inspection device according to claim 1, characterized in that: The support platform includes a base body and a top plate, the base body has a cavity with an open upper side, the detection sensor is arranged in the cavity, the top plate is detachably connected to the base body and covers the opening, and the upper side of the top plate constitutes the bearing surface.

3. The inspection device according to claim 2, characterized in that: The outer periphery of the box body is provided with a plurality of positioning grooves, and the support platform also includes a plurality of positioning blocks, which are distributed at intervals along the outer periphery of the base body, and each of the positioning blocks protrudes upward from the bearing surface, and each of the positioning blocks is configured to be embedded in the positioning groove of the IGBT module assembly carried by the bearing surface.

4. The inspection device according to claim 3, characterized in that: The seat body includes a bottom plate and a side edge arranged around the outer periphery of the bottom plate, the bottom plate and the side edge together enclose the chamber, a plurality of the metal sensors are laid flat on the upper side of the bottom plate, a plurality of the positioning blocks are arranged at the upper end of the side edge, and each positioning block is integrally formed with the side edge; A plurality of grooves are concavely arranged on the peripheral side of the top plate, each of the grooves passes through the top plate in the up-down direction, the shape of each of the grooves matches that of each of the positioning blocks, and each of the positioning blocks is correspondingly arranged in each of the grooves in the up-down direction.

5. The inspection device according to claim 4, characterized in that: Each positioning block has an outer edge close to the outer periphery of the side edge and an inner edge close to the inner edge of the side edge, and the size of the outer edge is larger than that of the inner edge.

6. The inspection device according to any one of claims 1 to 5, characterized in that: The inspection device also includes a weighing mechanism, which includes a weighing platform and a weighing sensor. The upper side of the weighing platform is used to support the support platform, and the weighing sensor is arranged on the lower side of the weighing platform to detect the weight change of the weighing platform.

7. The inspection device according to claim 6, characterized in that: The inspection device further includes a code reading mechanism, which is arranged on one side of the weighing platform and is used to read the coded data of the IGBT module assembly carried on the support platform.

8. A spot inspection device, characterized in that: include: A frame, wherein the frame has a first station, a second station and a third station arranged in sequence along a conveying direction; The spot inspection device according to any one of claims 1 to 5, wherein the spot inspection device is movably arranged on the frame along the conveying direction; A transport device, disposed on the frame, for transporting the inspection device to the first station, the second station, and the third station in sequence; and A weighing mechanism is arranged on the frame, and the weighing mechanism is arranged at the second station, and is used to detect the weight of the inspection device at the second station.

9. The inspection device according to claim 8, characterized in that: The inspection device further includes a code reading mechanism, which is disposed at the first station and is used to read the coded data of the IGBT module package carried by the inspection device at the first station.

10. The inspection device according to claim 8, characterized in that: The transport device includes a conveyor belt, a middle portion of the conveyor belt has a channel running through it in the up-down direction, and the conveyor belt carries the inspection device to sequentially transport the inspection device to the first station, the second station, and the third station; The inspection equipment also includes a lifting device, which is arranged on the frame and at the second workstation. The lifting device is located below the conveyor belt and is telescopically arranged in the up and down directions. The weighing mechanism is arranged at the upper end of the lifting device and has a function of rising to pass through the channel to lift the inspection device at the second workstation and descending to a descending position separated from the inspection device.

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