WO2020211636A1 - 一种电动车控制器mos管固定结构 - Google Patents

一种电动车控制器mos管固定结构 Download PDF

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Publication number
WO2020211636A1
WO2020211636A1 PCT/CN2020/082348 CN2020082348W WO2020211636A1 WO 2020211636 A1 WO2020211636 A1 WO 2020211636A1 CN 2020082348 W CN2020082348 W CN 2020082348W WO 2020211636 A1 WO2020211636 A1 WO 2020211636A1
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WIPO (PCT)
Prior art keywords
mos tube
electric vehicle
vehicle controller
fixing structure
housing
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PCT/CN2020/082348
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English (en)
French (fr)
Inventor
邓世刚
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南京溧水电子研究所有限公司
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Publication of WO2020211636A1 publication Critical patent/WO2020211636A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/12—Resilient or clamping means for holding component to structure
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating

Definitions

  • the utility model relates to an electric vehicle controller, in particular to a MOS tube fixing structure of the electric vehicle controller.
  • the traditional fixing method of the MOS tube of the electric vehicle controller mostly adopts the method of aluminum strips with captive screws so that the MOS tube is fixed on the side wall of the controller housing.
  • This fixing method is inconvenient to install and has a high cost.
  • springs have appeared on the market to fix MOS tubes, the springs on the market can only fix one row of MOS tubes, which causes the heat dissipation effect of the heat dissipation shell to be insufficient, and there are also problems in disassembly and assembly.
  • the shortcomings of shrapnel easy to slip off.
  • a MOS tube fixing structure for an electric vehicle controller includes a controller housing and a housing The circuit board and the MOS tube welded on the circuit board.
  • the MOS tube is attached to the inner wall of the shell. It also includes an elastic sheet and a screw installed on the shell for pressing the elastic sheet. One end of the elastic sheet is in contact with the MOS tube, and the other end is connected with the screw Abut.
  • an L-shaped support platform and a stopper are arranged on the inner wall of the housing, and a gap for the elastic sheet to pass is left between the support platform and the stopper, which can ensure that the elastic sheet is not easy to slip off.
  • the elastic sheet includes a bending part and a pressing part, the bending part is provided on the supporting platform, the pressing part is provided with an arc-shaped protrusion, the protrusion abuts against the MOS tube, and the protrusion and the MOS tube are abutted.
  • the tube abutting will generate greater pressure, which makes the bonding between the MOS tube and the shell closer, and has a better heat dissipation effect.
  • the place where the support platform and the stopper are connected to the inner wall of the housing are respectively provided with grooves, a screw positioning plate is arranged between the two grooves, the screw positioning plate is provided with a through hole, and the through hole is provided with a screw outside
  • the internal thread corresponding to the thread, and the screw positioning plate is a galvanized thin steel plate, which solves the problem that the aluminum profile is too soft, inconvenient to thread, and easy to produce aluminum cutting during installation.
  • shrapnel is an elastic shrapnel.
  • the shell is an aluminum profile shell.
  • the beneficial effects of the utility model are: the elastic sheet is compressed and deformed by the pressure of the screw, and the elastic force is transmitted to the MOS tube, so that the MOS tube and the shell are closely attached, and the heat conduction and heat dissipation effects are good.
  • the elastic sheet is arranged on the support platform and In the gap between the stoppers, it is not easy to slip off, and the structure is simple to install, which solves the problem that many shrapnels on the market are not easy to disassemble and assemble, and improves the installation efficiency.
  • Figure 1 is a schematic diagram of the structure of the utility model.
  • Figure 2 is a schematic diagram of the utility model after compression.
  • the markings in the figure are: 1, housing, 2, circuit board, 3, MOS tube, 4, L-shaped support platform, 5, shrapnel stopper, 6, screw, 7, screw positioning plate, 8, shrapnel, 81, bending Folding part, 82, pressing part, 83, convex part.
  • this embodiment provides a MOS tube fixing structure for an electric vehicle controller, which includes a controller housing 1, a circuit board 2 installed in the housing 1, and a MOS transistor 3 welded on the circuit board 2.
  • the tube 3 is attached to the inner wall of the housing 1 and further includes an elastic piece 8 and a screw 6 installed on the housing 1 for pressing the elastic piece 8.
  • One end of the elastic piece 8 abuts against the MOS tube 3 and the other end abuts against the screw 6.
  • the inner wall of the housing 1 is provided with an L-shaped support platform 4 and a spring stopper 5. A gap is left between the support platform 4 and the stop 5 for the spring 8 to pass through.
  • the spring 8 is made of elastic material, and the spring 8 includes a bent
  • the bending part 81 is provided on the supporting platform 4, and the pressing part 82 is provided with an arc-shaped protrusion 83 which abuts against the MOS tube 3.
  • the place where the support platform 4 and the stopper 5 are connected to the inner wall of the housing 1 are respectively provided with grooves, a screw positioning plate 7 is arranged between the two grooves, and a through hole is provided on the screw positioning plate 7, and the through hole is provided with
  • the internal thread corresponding to the external thread of the screw 6, and the screw positioning plate 7 is a galvanized steel sheet.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

本实用新型公开了一种电动车控制器MOS管固定结构，包括控制器壳体、安装在壳体内的电路板和焊接在电路板上的MOS管，MOS管与壳体内壁贴合，还包括弹片和安装在壳体上用于压紧弹片的螺钉，弹片一端与MOS管抵接，另一端与螺钉抵接。本结构热量传导、散热效果好，弹片设在支撑平台和挡块之间的缝隙内，不易滑落，且本结构安装简单，解决了目前市场上很多弹片不易拆装的问题，提高了安装效率。

Description

一种电动车控制器MOS管固定结构 技术领域
本实用新型涉及电动车控制器，具体为一种电动车控制器MOS管固定结构。
背景技术
目前传统的电动车控制器MOS管的固定方式大多采用铝条配禁锢螺丝的方式使得MOS管固定在控制器外壳的侧壁上，这种固定方式安装不便且成本较高。近几年虽然市场上出现了采用弹簧片来对MOS管固定方式，但是市场上出现的弹簧片只能固定一排的MOS管，造成散热外壳的散热效果无法充分发挥，同时也存在拆装不方便，弹片易滑落的缺点。
实用新型内容
为解决上述MOS管固定成本高，弹片拆装不方便且易滑落的问题，本实用新型提供了如下方案：一种电动车控制器MOS管固定结构，包括控制器壳体、安装在壳体内的电路板和焊接在电路板上的MOS管，MOS管与壳体内壁贴合，还包括弹片和安装在壳体上用于压紧弹片的螺钉，弹片一端与MOS管抵接，另一端与螺钉抵接。
进一步的，壳体内壁上设有L型支撑平台和挡块，支撑平台和挡块之间留有供弹片穿过的间隙，可保证弹片不易滑落。
进一步的，弹片包括弯折部和压紧部，弯折部设在支撑平台上，压紧部设有一个弧形的凸起部，凸起部与MOS管抵接，设置凸起部与MOS管抵接会产生更大的压力，使MOS管与壳体之间的贴合更加紧密，散热效果好。
进一步的，支撑平台和挡块与壳体内壁连接的地方分别设有凹槽，两个凹槽之间设有螺钉定位板，螺钉定位板上设有通孔，通孔内设有与螺钉外螺纹对应的内螺纹，螺钉定位板为镀锌薄钢板，解决了铝型材太软，不便做螺纹、安装时易产生铝削的问题。
进一步的，弹片为弹性弹片。
进一步的，壳体为铝型材壳体。
本实用新型的有益效果是：通过螺钉的压力使弹片压合变形，弹力传到MOS管上，实现了MOS管和外壳之间紧密贴合，热量传导、散热效果好，弹片设在支撑平台和挡块之间的缝隙内，不易滑落，且本结构安装简单，解决了目前市场上很多弹片不易拆装的问题，提高了安装效率。
附图说明
图1为本实用新型结构示意图。
图2为本实用新型压缩后示意图。
图中标记为：1、壳体，2、电路板，3、MOS管，4、L型支撑平台，5、弹片挡块，6、螺钉，7、螺钉定位板，8、弹片，81、弯折部，82、压紧部，83、凸起部。
具体实施方式
下面将结合附图和具体实施例对本实用新型进一步详细说明。
参见图1，本实施例提供了一种电动车控制器MOS管固定结构，包括控制器壳体1、安装在壳体1内的电路板2和焊接在电路板2上的MOS管3，MOS管3与壳体1内壁贴合，还包括弹片8和安装在壳体1上用于压紧弹片8的螺钉6，弹片8一端与MOS管3抵接，另一端与螺钉6抵接。
壳体1内壁上设有L型支撑平台4和弹片挡块5，支撑平台4和挡块5之间留有供弹片8穿过的间隙，弹片8由弹性材料制成，弹片8包括弯折部81和压紧部82，弯折部81设在支撑平台4上，压紧部82设有一个弧形的凸起部83，凸起部83与MOS管3抵接。支撑平台4和挡块5与壳体1内壁连接的地方分别设有凹槽，两个凹槽之间设有螺钉定位板7，螺钉定位板7上设有通孔，通孔内设有与螺钉6外螺纹对应的内螺纹，螺钉定位板7为镀锌薄钢板。
如图2所示，压缩时，拧紧螺钉6,通过螺钉6的压力使弹片8的弯折部81压合变形，弹力通过压紧部82上的凸起部83传到MOS管上3，实现了MOS管3和外壳1之间紧密贴合,实现了热量的传导和散热。
尽管参照前述实施例对本实用新型进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。

Claims (8)

  1. 一种电动车控制器MOS管固定结构，包括控制器壳体、安装在壳体内的电路板和焊接在所述电路板上的MOS管，所述MOS管与壳体内壁贴合，其特征在于：还包括弹片和安装在壳体上用于压紧弹片的螺钉，所述弹片一端与MOS管抵接，另一端与所述螺钉抵接。
  2. 根据权利要求1所述的一种电动车控制器MOS管固定结构，其特征在于：所述壳体内壁上设有L型支撑平台和挡块，所述支撑平台和所述挡块之间留有供弹片穿过的间隙。
  3. 根据权利要求2所述的一种电动车控制器MOS管固定结构，其特征在于：所述弹片包括弯折部和压紧部，所述弯折部设在支撑平台上，所述压紧部设有一个弧形的凸起部，所述凸起部与MOS管抵接。
  4. 根据权利要求2所述的一种电动车控制器MOS管固定结构，其特征在于：所述支撑平台和所述挡块与壳体内壁连接的地方分别设有凹槽，两个凹槽之间设有螺钉定位板。
  5. 根据权利要求4所述的一种电动车控制器MOS管固定结构，其特征在于：所述螺钉定位板上设有通孔，所述通孔内设有与螺钉外螺纹对应的内螺纹。
  6. 根据权利要求4或5所述的一种电动车控制器MOS管固定结构，其特征在于：所述螺钉定位板为镀锌薄钢螺钉定位板。
  7. 根据权利要求1至3任意一项所述的一种电动车控制器MOS管固定结构，其特征在于：所述弹片为弹性弹片。
  8. 根据权利要求1所述的一种电动车控制器MOS管固定结构，其特征在于：所述壳体为铝型材壳体。
PCT/CN2020/082348 2019-04-17 2020-03-31 一种电动车控制器mos管固定结构 WO2020211636A1 (zh)

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CN209845546U (zh) * 2019-04-17 2019-12-24 南京溧水电子研究所有限公司 一种电动车控制器mos管固定结构

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CN209845546U (zh) * 2019-04-17 2019-12-24 南京溧水电子研究所有限公司 一种电动车控制器mos管固定结构

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CN103619148A (zh) * 2013-11-06 2014-03-05 广东高标电子科技有限公司 一种弹片固定的电动车控制器散热装置
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CN114434072A (zh) * 2022-01-27 2022-05-06 贵州航天电器股份有限公司 一种用于继电器接触片组合焊接的定位机构
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