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WO2022120686A1 - Fixture for mounting radiator of mos transistor - Google Patents

Fixture for mounting radiator of mos transistor Download PDF

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Publication number
WO2022120686A1
WO2022120686A1 PCT/CN2020/135147 CN2020135147W WO2022120686A1 WO 2022120686 A1 WO2022120686 A1 WO 2022120686A1 CN 2020135147 W CN2020135147 W CN 2020135147W WO 2022120686 A1 WO2022120686 A1 WO 2022120686A1
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WO
WIPO (PCT)
Prior art keywords
mos tube
limiting plate
positioning
radiator
heat sink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/135147
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French (fr)
Chinese (zh)
Inventor
张军辉
程小魏
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Suzhou Etron Technologies Co Ltd
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Suzhou Etron Technologies Co Ltd
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Publication date
Application filed by Suzhou Etron Technologies Co Ltd filed Critical Suzhou Etron Technologies Co Ltd
Publication of WO2022120686A1 publication Critical patent/WO2022120686A1/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02—Assembly jigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/143—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same for installing wire thread inserts or tubular threaded inserts

Definitions

  • the invention relates to the field of electronic device assembly, in particular to a MOS tube radiator mounting fixture.
  • the heat sink assembly adopts a flip-up assembly process.
  • the flip-top assembly process has many shortcomings: it is not suitable for high-precision assembly; the matching degree of assembly jigs and components is low, and the success rate is low. Therefore, clamshell assembly cannot adapt to the development of electronic assembly technology in many aspects.
  • the measure to solve the above difficulties such as assembly matching and success rate is to adopt the through-hole sliding assembly process. Compared with the clamshell assembly process, the production efficiency and quality have been improved by using the sliding assembly process. It has great advantages in economy and advancement.
  • the accuracy of the assembly position of the heat sink directly affects the quality of the sliding assembly process, so it is necessary to control the accuracy of the assembly position of the heat sink.
  • the purpose of the present invention is to provide a MOS tube heat sink mounting fixture, which can not only meet the precision control requirements of heat sink assembly and more convenient and accurate assembly operability, but also enable the heat sink assembly to be assembled with high quality and precision in batches. , effectively reducing production costs.
  • a MOS tube radiator installation fixture comprising a bottom plate, a MOS tube position limiting plate and a shaking limiting plate fixed on the front of the bottom plate;
  • the middle part of the front of the base plate is provided with a positioning groove for positioning the radiator, the positioning groove is provided with a positioning column matched with the positioning through hole on the radiator, and the radiator is sleeved on the corresponding positioning column through the positioning through hole. , placed in the positioning groove;
  • the MOS tube position limiting plate and the shaking limiting plate are respectively located on the left and right sides of the positioning groove on the bottom plate; the inner side of the MOS tube position limiting plate is provided with a " ⁇ "-shaped positioning wall for positioning the MOS tube.
  • the positioning wall is located directly above the radiator; the inner side of the shaking limiting plate is provided with a semicircular limiting hole for limiting screws, and the limiting hole is located directly above the MOS tube; the screws pass through The screw holes on the MOS tube and the radiator fix the MOS tube and the radiator together.
  • the shape of the semicircular opening of the limiting hole on the shaking limiting plate fits with the outer peripheral shape of the screw.
  • positioning posts in the positioning groove, which are distributed diagonally in the positioning groove, and are matched with the positioning through holes on the heat sink in one-to-one correspondence.
  • the positioning posts are tightly fitted with the positioning through holes on the heat sink.
  • the two ends of the MOS tube position limiting plate and the shaking limiting plate are respectively provided with parallel fixing blocks fixed on the bottom plate; the MOS tube position limiting plate and the shaking limiting plate slide between the two parallel fixing blocks respectively.
  • the outer sides of the MOS tube position limiting plate and the shaking limiting plate are respectively provided with fixing buckles for fixing the MOS tube position limiting plate and the shaking limiting plate on the floor.
  • the MOS tube position limiting plate and the shaking limiting plate are fixed on the floor by means of buckles, and the MOS tube, the radiator and the screws are completed.
  • the heat sink adopts a metal heat sink.
  • the bottom plate is made of black bakelite; the MOS tube position limiting plate and the shaking limiting plate are made of steel plates.
  • the MOS tube radiator mounting fixture of the present invention limits the position of the placed MOS tube through a position limiting plate with high machining accuracy, so that the position deviation tolerance of the constrained MOS tube can meet the control requirements, and then limit the position by shaking
  • the plate makes the operability of the locking screw more convenient and easier.
  • the present invention can not only realize the MOS tube assembly precision control requirements and more convenient and accurate assembly operability, but also enable the MOS tube assembly to be assembled in batches with high quality and precision, thereby effectively reducing the production cost.
  • FIG. 1 is a schematic structural diagram of a MOS tube radiator mounting fixture of the present invention
  • FIG. 2 is a top view of the MOS tube heat sink mounting fixture of the present invention.
  • a MOS tube heat sink mounting fixture of the present invention includes a base plate 1 , a MOS tube position limiting plate 2 and a shaking limiting plate 3 fixed on the front surface of the base plate 1 .
  • a positioning slot 11 for positioning the heat sink is provided in the middle of the front of the base plate 1 , and the MOS tube position limiting plate 2 and the shaking limiting plate 3 are located on the left and right sides of the positioning slot 11 on the base plate 1 respectively.
  • the positioning grooves 11 are provided with positioning posts 12 matched with the positioning through holes on the heat sink.
  • There are two positioning posts 12 in the positioning groove 11 which are distributed diagonally in the positioning groove 11 , and are matched with the positioning through holes on the heat sink in one-to-one correspondence.
  • the positioning posts 12 are tightly fitted with the positioning through holes on the heat sink.
  • two positioning posts are designed to prevent fools in the placement direction of the heat sink. When the heat sink is placed in the opposite direction, the heat sink cannot be installed with the bottom plate 1, and the positioning posts make the positioning of the heat sink more accurate.
  • the MOS tube position limiting plate 2 and the shaking limiting plate 3 are respectively located on the left and right sides of the positioning groove 11 on the bottom plate 1;
  • the positioning wall 21, the positioning wall 21 is located directly above the heat sink;
  • the inner side of the shaking limiting plate 3 is provided with a semicircular limiting hole 31 for limiting screws, the limiting hole 31 is located at Just above the MOS tube; the screw fixes the MOS tube and the heat sink together through the screw holes on the MOS tube and the heat sink.
  • the bottom plate 1 and the positioning wall of the MOS tube position limiting plate 2 are tightly matched to prevent the MOS tube position limiting plate 2 from shifting when the assembled heat sink and the MOS tube are inserted;
  • the semicircular opening shape fits the outer peripheral shape of the screw.
  • Each screw limit hole can just allow one screw to be inserted, and at the same time, it avoids the shaking of the screw when it is locked, and enhances the workability of the screw locking operation.
  • the positioning walls 21 on the MOS tube position limiting plate 2 and the limiting holes 31 on the shaking limiting plate 3 are both multiple, and are matched with multiple MOS tubes in one-to-one correspondence to fix multiple MOS tubes on a heat sink .
  • the position limiting plate 2 is used for positioning the MOS tube during assembly, and for limiting the assembled MOS tube.
  • the shaking restraint plate 3 is used to locate the position of the screw, which is convenient for the screw to be locked into the through hole of the heat sink, and is used for screw limit, to ensure that the screw is vertically locked into the heat sink, to prevent it from tilting, and to assemble the locking screw. The operation is more convenient and precise.
  • the bottom plate 1 is placed on the heat sink and the position limit is fixed, and then the position limit plate 2 assembled in sequence is positioned, and then the MOS tube is positioned and placed, and after the MOS tube is placed, the shaking limit plate 3 is placed and its positioning.
  • the two ends of the MOS tube position limiting plate 2 and the shaking limiting plate 3 are respectively provided with parallel fixing blocks 4 fixed on the bottom plate 1; Slide between two parallel fixed blocks 4 .
  • the outer sides of the MOS tube position limiting plate 2 and the shaking limiting plate 3 are respectively provided with fixing buckles 5 for fixing the MOS tube position limiting plate 2 and the shaking limiting plate 3 on the floor 1 .
  • the bottom plate 1 is made of black bakelite, and the position limiting plate 2 and the shaking limiting plate 3 are steel plates, which are cut by wire, CNC machining, rough grinding, fine grinding, shaping and heat treatment to maintain a high flatness.
  • the heat sink is fixed on the bottom plate 1, and the placed MOS tube is limited by the position limit plate 2 with high machining accuracy, so that the position deviation tolerance of the limited MOS tube can meet the customer's control requirements, and then limit the shaking by shaking Plate 3 makes the locking screw more convenient and easier to operate.
  • the positioning accuracy of the MOS tube locking screw can be realized by the customer (the positioning accuracy is controlled within ⁇ 0.05mm) requirements.
  • the invention can not only realize the assembly precision control requirements of the heat sink and more convenient and accurate assembly operability, but also enable the heat sink assembly to be assembled in batches with high quality and precision, thereby effectively reducing the production cost.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

A fixture for mounting a radiator of a MOS transistor, the fixture comprising a bottom plate (1), and a position limiting plate (2) for the MOS transistor and a shake limiting plate (3) which are fixed on a front surface of the bottom plate (1), wherein a positioning groove (11) used for positioning the radiator is provided in a middle part of the front surface of the bottom plate (1); the positioning groove (11) is internally provided with a positioning column (12) cooperating with a positioning through hole in the radiator; the position limiting plate (2) for the MOS transistor and the shake limiting plate (3) are respectively positioned on left and right sides of the positioning groove (11) on the bottom plate (1); a positioning wall (21), in the shape of the Chinese character "匚" and used for positioning the MOS transistor, is arranged on an inner side edge of the position limiting plate (2) for the MOS transistor; the positioning wall (21) is positioned directly above the radiator; a semicircular limiting hole (31) used for limiting a screw is arranged on an inner side edge of the shake limiting plate (3); the limiting hole (31) is positioned directly above the MOS transistor; and the MOS transistor and the radiator are fixed together by means of the screw. The fixture not only meets the requirement of assembly accuracy control of the MOS transistor and realizes more convenient and accurate assembly operability, but can also carry out high-quality precise assembly in batches and effectively reduce production costs.

Description

一种MOS管散热器安装夹具A MOS tube radiator mounting fixture 技术领域technical field

本发明涉及电子器件组装领域，特别涉及一种MOS管散热器安装夹具。The invention relates to the field of electronic device assembly, in particular to a MOS tube radiator mounting fixture.

背景技术Background technique

目前，在特定场合使用MOS管时，一般会要求其加装金属散热片，而传统操作中为MOS管装散热片需要人工将MOS管装入金属散热片中，每片均需要独立作业，由于MOS管相对于人手指来说相对较小，导致操作人员在作业时需要一只手紧捏MOS管，另一只手捏紧金属散热片，然后将MOS管先插入金属散热片内后，再用手将两者捏紧，这样的加工方式不仅浪费人力、增加作业员的疲劳度而且还降低了工作效率，由于需要通过手指进行操作，还会增加作业人员手指的磨损度，为了避免这个问题，作业时需要增加手指套作业，这样也容易导致手指套磨损而增加手指套的使用量。At present, when using a MOS tube in a specific occasion, it is generally required to install a metal heat sink. In traditional operations, installing a heat sink for a MOS tube requires manual installation of the MOS tube into the metal heat sink, and each piece needs to be operated independently. The MOS tube is relatively small compared to human fingers, so the operator needs to squeeze the MOS tube with one hand and the metal heat sink with the other hand, and then insert the MOS tube into the metal heat sink first, and then use it. Pinch the two with your hands. This processing method not only wastes manpower, increases the fatigue of the operator, but also reduces the work efficiency. Since it needs to be operated by fingers, it will also increase the wear of the operator's fingers. In order to avoid this problem, It is necessary to increase the number of finger cots during operation, which will easily lead to wear and tear of the finger cots and increase the usage of the finger cots.

在现有的电子组装工艺中，散热片组装采用翻盖式组装工艺。但翻盖式组装工艺有许多不足之处：不适合高精度组装；组装治具和元件的匹配度较低，成功率偏低。因此翻盖式组装在许多方面不能适应电子组装技术的发展。为了适应高精度组装技术的发展，解决以上组装匹配和成功率等难点的措施是采用通孔滑动式组装工艺。使用滑动式组装工艺相比翻盖式组装工艺，在生产效率及品质上都得到了提高。其在经济性和先进性上都有很大优势。In the existing electronic assembly process, the heat sink assembly adopts a flip-up assembly process. However, the flip-top assembly process has many shortcomings: it is not suitable for high-precision assembly; the matching degree of assembly jigs and components is low, and the success rate is low. Therefore, clamshell assembly cannot adapt to the development of electronic assembly technology in many aspects. In order to adapt to the development of high-precision assembly technology, the measure to solve the above difficulties such as assembly matching and success rate is to adopt the through-hole sliding assembly process. Compared with the clamshell assembly process, the production efficiency and quality have been improved by using the sliding assembly process. It has great advantages in economy and advancement.

而散热片组装位置精度直接影响到滑动式组装工艺的质量，故需要对散热片组装位置精度进行控制。The accuracy of the assembly position of the heat sink directly affects the quality of the sliding assembly process, so it is necessary to control the accuracy of the assembly position of the heat sink.

发明内容SUMMARY OF THE INVENTION

本发明目的是：提供一种MOS管散热器安装夹具，不仅能够实现散热片组装的精度控制要求以及更方便、更精确的组装操作性，而且使得散热片组装可以进行批量性的高质量精密组装，有效降低生产成本。The purpose of the present invention is to provide a MOS tube heat sink mounting fixture, which can not only meet the precision control requirements of heat sink assembly and more convenient and accurate assembly operability, but also enable the heat sink assembly to be assembled with high quality and precision in batches. , effectively reducing production costs.

本发明的技术方案是：The technical scheme of the present invention is:

一种MOS管散热器安装夹具，包括底板及固定于底板正面的MOS管位置限 制板、晃动限制板；A MOS tube radiator installation fixture, comprising a bottom plate, a MOS tube position limiting plate and a shaking limiting plate fixed on the front of the bottom plate;

所述底板正面中部设有用于定位散热器的定位槽，所述定位槽中设有与散热器上的定位通孔相配合的定位柱，散热器通过将其定位通孔套在对应定位柱上，置于定位槽内；The middle part of the front of the base plate is provided with a positioning groove for positioning the radiator, the positioning groove is provided with a positioning column matched with the positioning through hole on the radiator, and the radiator is sleeved on the corresponding positioning column through the positioning through hole. , placed in the positioning groove;

所述MOS管位置限制板和晃动限制板分别位于底板上定位槽左右两侧；所述MOS管位置限制板内侧边上设有“匚”形的用于定位MOS管的定位壁，所述定位壁位于散热器的正上方；所述晃动限制板内侧边上设有半圆形的用于限位螺丝的限位孔，所述限位孔位于MOS管的正上方；所述螺丝通过MOS管与散热器上的螺丝孔将MOS管与散热器固定在一起。The MOS tube position limiting plate and the shaking limiting plate are respectively located on the left and right sides of the positioning groove on the bottom plate; the inner side of the MOS tube position limiting plate is provided with a "匚"-shaped positioning wall for positioning the MOS tube. The positioning wall is located directly above the radiator; the inner side of the shaking limiting plate is provided with a semicircular limiting hole for limiting screws, and the limiting hole is located directly above the MOS tube; the screws pass through The screw holes on the MOS tube and the radiator fix the MOS tube and the radiator together.

优选的，所述MOS管位置限制板上的定位壁与晃动限制板上的限位孔均为多个，且与多个MOS管一一对应配合，将多个MOS管固定于一个散热器上。Preferably, there are multiple positioning walls on the MOS tube position limiting board and multiple limiting holes on the shaking limiting board, and are matched with multiple MOS tubes in one-to-one correspondence to fix multiple MOS tubes on a radiator .

优选的，所述晃动限制板上的限位孔的半圆形开口形状与螺丝的外周形状贴合。Preferably, the shape of the semicircular opening of the limiting hole on the shaking limiting plate fits with the outer peripheral shape of the screw.

优选的，所述定位槽中的定位柱为两个，在定位槽中呈对角分布，且与散热器上的定位通孔一一对应配合。Preferably, there are two positioning posts in the positioning groove, which are distributed diagonally in the positioning groove, and are matched with the positioning through holes on the heat sink in one-to-one correspondence.

优选的，所述定位柱与散热器上的定位通孔为紧配合。Preferably, the positioning posts are tightly fitted with the positioning through holes on the heat sink.

优选的，所述MOS管位置限制板、晃动限制板的两端分别设有固定于底板上的平行的固定块；MOS管位置限制板、晃动限制板分别在两个平行的固定块之间滑动。Preferably, the two ends of the MOS tube position limiting plate and the shaking limiting plate are respectively provided with parallel fixing blocks fixed on the bottom plate; the MOS tube position limiting plate and the shaking limiting plate slide between the two parallel fixing blocks respectively. .

优选的，所述MOS管位置限制板、晃动限制板的外侧边上分别设有固定卡扣，用于将MOS管位置限制板、晃动限制板固定于地板上。Preferably, the outer sides of the MOS tube position limiting plate and the shaking limiting plate are respectively provided with fixing buckles for fixing the MOS tube position limiting plate and the shaking limiting plate on the floor.

优选的，所述MOS管位置限制板、晃动限制板沿着固定块滑至最内侧时，使用卡扣将MOS管位置限制板、晃动限制板固定于地板上，完成MOS管、散热器和螺丝的定位与固定；打开卡扣后，限制板、晃动限制板沿着固定块向外侧滑动，取出完成散热器固定的MOS管。Preferably, when the MOS tube position limiting plate and the shaking limiting plate are slid to the innermost side along the fixing block, the MOS tube position limiting plate and the shaking limiting plate are fixed on the floor by means of buckles, and the MOS tube, the radiator and the screws are completed. The positioning and fixing of the radiator; after opening the buckle, the limiting plate and the shaking limiting plate slide to the outside along the fixing block, and take out the MOS tube that completes the fixing of the radiator.

优选的，所述散热器采用金属散热片。Preferably, the heat sink adopts a metal heat sink.

优选的，所述底板采用黑色电木；所述MOS管位置限制板、晃动限制板采用钢板。Preferably, the bottom plate is made of black bakelite; the MOS tube position limiting plate and the shaking limiting plate are made of steel plates.

本发明的优点是：The advantages of the present invention are:

1.本发明的MOS管散热器安装夹具，通过高加工精度的位置限制板，对所放置的MOS管进行限位，实现所限位的MOS管位置偏移公差达到控制要求，再通过晃动限制板使锁螺丝操作性更方便容易，通过将治具三部分的精密装配配合控制在±0.02mm以内，实现对MOS管锁螺丝定位精度控制在±0.05mm以内。1. The MOS tube radiator mounting fixture of the present invention limits the position of the placed MOS tube through a position limiting plate with high machining accuracy, so that the position deviation tolerance of the constrained MOS tube can meet the control requirements, and then limit the position by shaking The plate makes the operability of the locking screw more convenient and easier. By controlling the precise assembly of the three parts of the fixture within ±0.02mm, the positioning accuracy of the MOS tube locking screw is controlled within ±0.05mm.

2.本发明不仅能够实现MOS管的组装精度控制要求以及更方便、更精确的组装操作性，而且使得MOS管组装可以进行批量性的高质量精密组装，有效降低生产成本。2. The present invention can not only realize the MOS tube assembly precision control requirements and more convenient and accurate assembly operability, but also enable the MOS tube assembly to be assembled in batches with high quality and precision, thereby effectively reducing the production cost.

附图说明Description of drawings

下面结合附图及实施例对本发明作进一步描述：Below in conjunction with accompanying drawing and embodiment, the present invention is further described:

图1为本发明的MOS管散热器安装夹具的结构示意图；1 is a schematic structural diagram of a MOS tube radiator mounting fixture of the present invention;

图2为本发明的MOS管散热器安装夹具的俯视图。FIG. 2 is a top view of the MOS tube heat sink mounting fixture of the present invention.

具体实施方式Detailed ways

如图1和2所示，本发明的一种MOS管散热片安装夹具，包括底板1及固定于底板1正面的MOS管位置限制板2、晃动限制板3。As shown in FIGS. 1 and 2 , a MOS tube heat sink mounting fixture of the present invention includes a base plate 1 , a MOS tube position limiting plate 2 and a shaking limiting plate 3 fixed on the front surface of the base plate 1 .

图1和2中，所述底板1正面中部设有用于定位散热片的定位槽11，MOS管位置限制板2和晃动限制板3分别位于底板1上定位槽11左右两侧。所述定位槽11中设有与散热片上的定位通孔相配合的定位柱12，散热片通过将其定位通孔套在对应定位柱12上，置于定位槽11内。所述定位槽11中的定位柱12为两个，在定位槽11中呈对角分布，且与散热片上的定位通孔一一对应配合。所述定位柱12与散热片上的定位通孔为紧配合。本发明设计两个定位柱可以对散热片的放置方向进行防呆，反方向放置时散热片无法与底板1安装在一起，定位柱使散热片的定位更准确。In FIGS. 1 and 2 , a positioning slot 11 for positioning the heat sink is provided in the middle of the front of the base plate 1 , and the MOS tube position limiting plate 2 and the shaking limiting plate 3 are located on the left and right sides of the positioning slot 11 on the base plate 1 respectively. The positioning grooves 11 are provided with positioning posts 12 matched with the positioning through holes on the heat sink. There are two positioning posts 12 in the positioning groove 11 , which are distributed diagonally in the positioning groove 11 , and are matched with the positioning through holes on the heat sink in one-to-one correspondence. The positioning posts 12 are tightly fitted with the positioning through holes on the heat sink. In the present invention, two positioning posts are designed to prevent fools in the placement direction of the heat sink. When the heat sink is placed in the opposite direction, the heat sink cannot be installed with the bottom plate 1, and the positioning posts make the positioning of the heat sink more accurate.

所述MOS管位置限制板2和晃动限制板3分别位于底板1上定位槽11左右两侧；所述MOS管位置限制板2内侧边上设有“匚”形的用于定位MOS管的定位壁21，所述定位壁21位于散热片的正上方；所述晃动限制板3内侧边上设有半圆形的用 于限位螺丝的限位孔31，所述限位孔31位于MOS管的正上方；所述螺丝通过MOS管与散热片上的螺丝孔将MOS管与散热片固定在一起。The MOS tube position limiting plate 2 and the shaking limiting plate 3 are respectively located on the left and right sides of the positioning groove 11 on the bottom plate 1; The positioning wall 21, the positioning wall 21 is located directly above the heat sink; the inner side of the shaking limiting plate 3 is provided with a semicircular limiting hole 31 for limiting screws, the limiting hole 31 is located at Just above the MOS tube; the screw fixes the MOS tube and the heat sink together through the screw holes on the MOS tube and the heat sink.

所述底板1与MOS管位置限制板2的定位壁为紧配合，防止MOS管位置限制板2在组装散热片和MOS管插入时偏移；所述晃动限制板3上的限位孔31的半圆形开口形状与螺丝的外周形状贴合。每个螺丝限位孔正好可以容许插入一个螺丝，同时避免了螺丝锁入时的晃动性，增强了锁螺丝作业的可作业性。The bottom plate 1 and the positioning wall of the MOS tube position limiting plate 2 are tightly matched to prevent the MOS tube position limiting plate 2 from shifting when the assembled heat sink and the MOS tube are inserted; The semicircular opening shape fits the outer peripheral shape of the screw. Each screw limit hole can just allow one screw to be inserted, and at the same time, it avoids the shaking of the screw when it is locked, and enhances the workability of the screw locking operation.

所述MOS管位置限制板2上的定位壁21与晃动限制板3上的限位孔31均为多个，且与多个MOS管一一对应配合，将多个MOS管固定于一个散热片上。The positioning walls 21 on the MOS tube position limiting plate 2 and the limiting holes 31 on the shaking limiting plate 3 are both multiple, and are matched with multiple MOS tubes in one-to-one correspondence to fix multiple MOS tubes on a heat sink .

所述位置限制板2，用于MOS管组装时定位，并对所组装的MOS管进行限位。所述晃动限制板3，用于对螺丝的放置位置进行定位，方便螺丝锁入散热片的通孔，并用于螺丝限位，保证螺丝垂直锁入散热片，防止其倾斜，使锁螺丝的组装作业操作性更方便，更精确。The position limiting plate 2 is used for positioning the MOS tube during assembly, and for limiting the assembled MOS tube. The shaking restraint plate 3 is used to locate the position of the screw, which is convenient for the screw to be locked into the through hole of the heat sink, and is used for screw limit, to ensure that the screw is vertically locked into the heat sink, to prevent it from tilting, and to assemble the locking screw. The operation is more convenient and precise.

具体操作时，所述底板1放置散热片并对其限位固定，其后对依次组装的位置限制板2进行定位，然后定位放置MOS管，放置MOS管结束后再放置晃动限制板3并对其定位。During the specific operation, the bottom plate 1 is placed on the heat sink and the position limit is fixed, and then the position limit plate 2 assembled in sequence is positioned, and then the MOS tube is positioned and placed, and after the MOS tube is placed, the shaking limit plate 3 is placed and its positioning.

图1和2中，所述MOS管位置限制板2、晃动限制板3的两端分别设有固定于底板1上的平行的固定块4；MOS管位置限制板2、晃动限制板3分别在两个平行的固定块4之间滑动。所述MOS管位置限制板2、晃动限制板3的外侧边上分别设有固定卡扣5，用于将MOS管位置限制板2、晃动限制板3固定于地板1上。所述MOS管位置限制板2、晃动限制板3沿着固定块4滑至最内侧时，使用卡扣5将MOS管位置限制板2、晃动限制板3固定于地板1上，完成MOS管、散热片和螺丝的定位与固定；打开卡扣5后，限制板2、晃动限制板3沿着固定块4向外侧滑动，取出完成散热片固定的MOS管。1 and 2, the two ends of the MOS tube position limiting plate 2 and the shaking limiting plate 3 are respectively provided with parallel fixing blocks 4 fixed on the bottom plate 1; Slide between two parallel fixed blocks 4 . The outer sides of the MOS tube position limiting plate 2 and the shaking limiting plate 3 are respectively provided with fixing buckles 5 for fixing the MOS tube position limiting plate 2 and the shaking limiting plate 3 on the floor 1 . When the MOS tube position limiting plate 2 and the shaking limiting plate 3 slide to the innermost along the fixing block 4, use the buckle 5 to fix the MOS tube position limiting plate 2 and the shaking limiting plate 3 on the floor 1 to complete the MOS tube, Positioning and fixing of the heat sink and screws; after opening the buckle 5, the restriction plate 2 and the shaking restriction plate 3 slide to the outside along the fixing block 4, and take out the MOS tube with the heat sink fixed.

所述底板1采用黑色电木，所述位置限制板2、晃动限制板3为钢板，经过线切割，CNC加工，粗磨，精磨，整形，热处理，使其保持高平面度。The bottom plate 1 is made of black bakelite, and the position limiting plate 2 and the shaking limiting plate 3 are steel plates, which are cut by wire, CNC machining, rough grinding, fine grinding, shaping and heat treatment to maintain a high flatness.

将散热片固定在底板1上，通过高加工精度的位置限制板2，对所放置的MOS管进行限位，实现所限位的MOS管位置偏移公差达到客户的控制要求，再通过晃动限制板3使锁螺丝操作性更方便容易，通过治具三部分的精密装配配合(配合 公差控制在±0.02mm以内)，实现客户对MOS管锁螺丝定位精度(定位精度控制在±0.05mm以内)的要求。本发明不仅能够实现散热片的组装精度控制要求以及更方便、更精确的组装操作性，而且使得散热片组装可以进行批量性的高质量精密组装，有效降低生产成本。The heat sink is fixed on the bottom plate 1, and the placed MOS tube is limited by the position limit plate 2 with high machining accuracy, so that the position deviation tolerance of the limited MOS tube can meet the customer's control requirements, and then limit the shaking by shaking Plate 3 makes the locking screw more convenient and easier to operate. Through the precise assembly and cooperation of the three parts of the fixture (the matching tolerance is controlled within ±0.02mm), the positioning accuracy of the MOS tube locking screw can be realized by the customer (the positioning accuracy is controlled within ±0.05mm) requirements. The invention can not only realize the assembly precision control requirements of the heat sink and more convenient and accurate assembly operability, but also enable the heat sink assembly to be assembled in batches with high quality and precision, thereby effectively reducing the production cost.

上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明主要技术方案的精神实质所做的修饰，都应涵盖在本发明的保护范围之内。The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All modifications made according to the spirit and essence of the main technical solutions of the present invention should be covered within the protection scope of the present invention.

Claims (10)

一种MOS管散热器安装夹具，其特征在于，包括底板(1)及固定于底板(1)正面的MOS管位置限制板(2)、晃动限制板(3)；A MOS tube radiator installation fixture, characterized by comprising a base plate (1), a MOS tube position limiting plate (2) and a shaking limiting plate (3) fixed on the front of the base plate (1); 所述底板(1)正面中部设有用于定位散热器的定位槽(11)，所述定位槽(11)中设有与散热器上的定位通孔相配合的定位柱(12)，散热器通过将其定位通孔套在对应定位柱(12)上，置于定位槽(11)内；A positioning groove (11) for positioning the radiator is provided in the middle of the front of the bottom plate (1), and a positioning post (12) matched with the positioning through hole on the radiator is arranged in the positioning groove (11), and the radiator The positioning through holes are sleeved on the corresponding positioning posts (12) and placed in the positioning grooves (11); 所述MOS管位置限制板(2)和晃动限制板(3)分别位于底板(1)上定位槽(11)左右两侧；所述MOS管位置限制板(2)内侧边上设有“匚”形的用于定位MOS管的定位壁(21)，所述定位壁(21)位于散热器的正上方；所述晃动限制板(3)内侧边上设有半圆形的用于限位螺丝的限位孔(31)，所述限位孔(31)位于MOS管的正上方；所述螺丝通过MOS管与散热器上的螺丝孔将MOS管与散热器固定在一起。The MOS tube position limiting plate (2) and the shaking limiting plate (3) are respectively located on the left and right sides of the positioning groove (11) on the bottom plate (1); the inner side of the MOS tube position limiting plate (2) is provided with " The positioning wall (21) for positioning the MOS tube is in the shape of a "", the positioning wall (21) is located directly above the radiator; A limit hole (31) of a limit screw, the limit hole (31) is located directly above the MOS tube; the screw fixes the MOS tube and the radiator together through the screw holes on the MOS tube and the radiator. 根据权利要求1所述的MOS管散热器安装夹具，其特征在于，所述MOS管位置限制板(2)上的定位壁(21)与晃动限制板(3)上的限位孔(31)均为多个，且与多个MOS管一一对应配合，将多个MOS管固定于一个散热器上。The MOS tube heat sink mounting fixture according to claim 1, wherein the positioning wall (21) on the MOS tube position limiting plate (2) and the limiting hole (31) on the shaking limiting plate (3) All of them are multiple, and are matched with multiple MOS tubes in one-to-one correspondence, and the multiple MOS tubes are fixed on a heat sink. 根据权利要求1所述的MOS管散热器安装夹具，其特征在于，所述晃动限制板(3)上的限位孔(31)的半圆形开口形状与螺丝的外周形状贴合。The MOS tube heat sink mounting fixture according to claim 1, wherein the semicircular opening shape of the limiting hole (31) on the shaking limiting plate (3) fits with the outer peripheral shape of the screw. 根据权利要求1所述的MOS管散热器安装夹具，其特征在于，所述定位槽(11)中的定位柱(12)为两个，在定位槽(11)中呈对角分布，且与散热器上的定位通孔一一对应配合。The MOS tube heat sink mounting fixture according to claim 1, characterized in that there are two positioning posts (12) in the positioning groove (11), which are diagonally distributed in the positioning groove (11), and are opposite to each other. The positioning through holes on the heat sink are matched one by one. 根据权利要求4所述的MOS管散热器安装夹具，其特征在于，所述定位柱(12)与散热器上的定位通孔为紧配合。The MOS tube heat sink mounting fixture according to claim 4, characterized in that, the positioning posts (12) are in tight fit with the positioning through holes on the heat sink. 根据权利要求5所述的MOS管散热器安装夹具，其特征在于，所述MOS管位置限制板(2)、晃动限制板(3)的两端分别设有固定于底板(1)上的平行的固定块(4)；MOS管位置限制板(2)、晃动限制板(3)分别在两个平行的固定块(4)之间滑动。The MOS tube radiator mounting fixture according to claim 5, characterized in that, the two ends of the MOS tube position limiting plate (2) and the shaking limiting plate (3) are respectively provided with parallel parallel plates fixed on the bottom plate (1). The fixing block (4); the MOS tube position limiting plate (2) and the shaking limiting plate (3) slide between the two parallel fixing blocks (4) respectively. 根据权利要求6所述的MOS管散热器安装夹具，其特征在于，所述MOS管位置限制板(2)、晃动限制板(3)的外侧边上分别设有固定卡扣(5)，用于将MOS管位置限制板(2)、晃动限制板(3)固定于地板(1)上。The MOS tube radiator mounting fixture according to claim 6, characterized in that, the outer sides of the MOS tube position limiting plate (2) and the shaking limiting plate (3) are respectively provided with fixing buckles (5), It is used to fix the MOS tube position limiting plate (2) and the shaking limiting plate (3) on the floor (1). 根据权利要求7所述的MOS管散热器安装夹具，其特征在于，所述MOS管位置限制板(2)、晃动限制板(3)沿着固定块(4)滑至最内侧时，使用卡扣(5)将MOS管位置限制板(2)、晃动限制板(3)固定于地板(1)上，完成MOS管、散热器和螺丝的定位与固定；打开卡扣(5)后，限制板(2)、晃动限制板(3)沿着固定块(4)向外侧滑动，取出完成散热器固定的MOS管。The MOS tube radiator mounting fixture according to claim 7, characterized in that, when the MOS tube position limiting plate (2) and the shaking limiting plate (3) slide to the innermost along the fixing block (4), a clamp is used The buckle (5) fixes the MOS tube position limiting plate (2) and the shaking limiting plate (3) on the floor (1) to complete the positioning and fixing of the MOS tube, the radiator and the screw; after opening the buckle (5), limit the Slide the plate (2) and the shaking restraining plate (3) to the outside along the fixing block (4), and take out the MOS tube that completes the fixing of the heat sink. 根据权利要求7所述的MOS管散热器安装夹具，其特征在于，所述散热器采用金属散热片。The MOS tube heat sink mounting fixture according to claim 7, wherein the heat sink adopts a metal heat sink. 根据权利要求1-9任意一项所述的MOS管散热器安装夹具，其特征在于，所述底板(1)采用黑色电木；所述MOS管位置限制板(2)、晃动限制板(3)采用钢板。The MOS tube radiator installation fixture according to any one of claims 1-9, characterized in that, the bottom plate (1) is made of black bakelite; the MOS tube position limiting plate (2), the shaking limiting plate (3) ) using steel plate.
PCT/CN2020/135147 2020-12-07 2020-12-10 Fixture for mounting radiator of mos transistor Ceased WO2022120686A1 (en)

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