WO2023151265A1 - 电子控制集成式执行电机 - Google Patents

电子控制集成式执行电机 Download PDF

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Publication number
WO2023151265A1
WO2023151265A1 PCT/CN2022/116691 CN2022116691W WO2023151265A1 WO 2023151265 A1 WO2023151265 A1 WO 2023151265A1 CN 2022116691 W CN2022116691 W CN 2022116691W WO 2023151265 A1 WO2023151265 A1 WO 2023151265A1
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Prior art keywords
heat dissipation
motor
electronic
cavity
electronic components
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PCT/CN2022/116691
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English (en)
French (fr)
Inventor
刘守军
沈寅贝
王吉臣
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上海纳铁福传动系统有限公司
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Priority claimed from CN202220254236.8U external-priority patent/CN217159497U/zh
Priority claimed from CN202210117743.1A external-priority patent/CN116613939A/zh
Application filed by 上海纳铁福传动系统有限公司 filed Critical 上海纳铁福传动系统有限公司
Publication of WO2023151265A1 publication Critical patent/WO2023151265A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits

Definitions

  • the invention relates to the technical field of integrated motors, in particular to an electronically controlled integrated executive motor.
  • the electronically controlled integrated actuator motors for vehicles are still in their infancy.
  • Most of the products on the market are simple integration of electronic controllers and motors.
  • the large heat generation of motor windings and the injection molding commonly used by electronic controllers are not designed for heat dissipation.
  • Insufficient heat dissipation capacity of the shell will limit the allowable power during product design, making the power of common control integrated motors often too small.
  • the electronic circuit board part also needs to be designed according to the strong vibration and shock of the motor. The common way is to select special components, resulting in a higher unit price.
  • the technical problem to be solved by the present invention is to provide an electronically controlled integrated actuator motor, which can achieve high power through reliable heat dissipation, and meet the requirements of strong vibration and shock under the premise of using conventional components, so as to overcome the above-mentioned problems in the prior art defect.
  • an electronically controlled integrated executive motor including a motor and a controller for controlling the motor
  • the controller includes a housing with a cavity inside and an electronic circuit board installed in the cavity , the shell is installed on the motor, and the electronic circuit board is equipped with a number of electronic components with heat generation.
  • the inner cavity wall of the cavity is respectively formed with a heat dissipation platform at a position opposite to each electronic component.
  • a first gap is formed between the opposite electronic components, and the first gap is filled with thermal paste.
  • the first gap is not greater than 0.5 mm.
  • At least one heat dissipation platform is formed with a protection portion surrounding the outer peripheral side of the electronic component, and a second gap is formed between the protection portion and the electronic component, and the second gap is filled with heat dissipation glue.
  • the second gap is not greater than 0.5 mm.
  • the heat dissipation adhesive is thermal conductive silica gel.
  • the shell includes a bottom shell mounted on the motor and a cover shell connected to the bottom shell to form a cavity, the electronic circuit board is arranged on the bottom shell, and each cooling platform body is formed on the cover shell.
  • the casing is a cast aluminum casing.
  • a separate heat dissipation platform is provided in the cavity of the controller shell corresponding to each electronic component with heat generation, and each heat dissipation platform is not directly connected to the corresponding electronic component. Keep the distance on the premise of contact, and fill the first gap between each heat dissipation table body and the opposite electronic component, so that the internal heat generated when the electronic control integrated executive motor of the present invention is working can be used.
  • the heat dissipation glue and the heat dissipation table are conducted to the controller shell, and the heat conducted to the controller shell can be passively dissipated by the heat dissipation structure on the outer surface of the controller shell.
  • the electronic control integrated execution motor of the present invention can realize reliable The heat dissipation effect enables high power to be achieved through reliable heat dissipation.
  • the heat dissipation glue filled between each heat dissipation table body and the opposite electronic component is in a state similar to rubber after curing, it can effectively protect the electronic component in a vibration and shock environment. Therefore, the electronic control integrated of the present invention
  • the type actuator motor can meet the requirements of strong vibration and shock under the premise of using conventional components.
  • Fig. 1 is a schematic diagram of the overall structure of an electronically controlled integrated actuator motor according to an embodiment of the present invention.
  • Fig. 2 is a schematic cross-sectional view of an electronically controlled integrated actuator motor according to an embodiment of the present invention.
  • Fig. 3 is a split schematic diagram of the electronic control integrated actuator motor according to the embodiment of the present invention.
  • Fig. 4 is a schematic structural view of the cover shell in the electronically controlled integrated actuator motor according to the embodiment of the present invention.
  • Fig. 5 is a schematic cross-sectional view of the relative arrangement of the heat dissipation platform without the protection part and the electronic components in the electronically controlled integrated actuator motor according to the embodiment of the present invention.
  • Fig. 6 is a schematic cross-sectional view of the relative arrangement of the heat dissipation platform with the protection part and the electronic components in the electronically controlled integrated actuator motor according to the embodiment of the present invention.
  • FIG. 7 is a schematic cross-sectional view of the electronic control integrated actuator motor according to the embodiment of the present invention, where the protective part of the cooling platform surrounds the outer peripheral side of the electronic components.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
  • the electronic control integrated execution motor of this embodiment includes a motor 1 and a controller 2, the controller 2 is integrated on the motor 1, and the controller 2 controls the operation of the motor 1.
  • the motor 1 is a conventional executive motor, and the motor 1 includes a hollow motor housing 11, a stator 12 built in the motor housing 11, which is passed through the stator 12 and supported on the motor housing by a bearing 13. 11 on the rotor 14.
  • the controller 2 includes a casing 21 and an electronic circuit board 22 , the casing 21 has a cavity 20 inside, and the electronic circuit board 22 is installed in the cavity 20 .
  • the casing 21 is installed on the motor 1 , and the casing 21 is fixedly connected with the motor casing 11 .
  • Several electronic components 23 are mounted on the electronic circuit board 22 , and each electronic component 23 has a relatively high calorific value during operation.
  • heat dissipation platforms 24 are respectively formed at the positions opposite to the electronic components 23, that is, a number of cooling platforms are formed on the inner cavity wall of the cavity 20 body 24, several heat dissipation platform bodies 24 are arranged in a one-to-one correspondence with several electronic components 23, and each heat dissipation platform body 24 has a heat conducting surface 24a opposite to the corresponding electronic component 23, and each heat dissipation platform body 24 is opposite to the corresponding electronic component 23.
  • First gaps 25 are evenly spaced between the electronic components 23 , that is, the first gaps 25 are evenly spaced between the heat conduction surfaces 24 a of each heat dissipation platform 24 and the opposite electronic components 23 , and the first gaps 25 are filled with heat dissipation glue.
  • a separate heat dissipation platform body 24 is arranged in the cavity 20 of the housing 21 of the controller 2 corresponding to each electronic component 23 with heat generation, and each heat dissipation platform body 24 is corresponding to
  • the electronic components 23 are all kept at a distance under the premise of no direct contact, and heat dissipation glue is filled in the first gap 25 between each heat dissipation table body 24 and the opposite electronic component 23, thus, the electronic control of this embodiment
  • the internal heat generated when the integrated executive motor works can be conducted to the controller 2 shell 21 by means of the heat dissipation glue and the heat dissipation platform 24, and the heat conducted to the controller 2 shell 21 can rely on the heat dissipation structure on the outer surface of the controller 2 shell 21 Passive heat dissipation is performed.
  • the electronically controlled integrated actuator motor of this embodiment can achieve reliable heat dissipation effect, so that high power can be achieved through reliable heat dissipation.
  • the state of the heat-dissipating glue filled between each heat-dissipating table body 24 and the opposite electronic component 23 is similar to that of rubber after curing, it can effectively protect the electronic component 23 in a vibration and shock environment. Therefore, the present embodiment
  • the advanced electronic control integrated actuator motor can meet the requirements of strong vibration and shock under the premise of using conventional components.
  • the first gap 25 between each heat dissipation platform 24 and the opposite electronic component 23 is not greater than 0.5 mm, so as to ensure effective heat conduction and heat dissipation.
  • each cooling platform 24 maintains a uniform distance of no more than 0.5 millimeters from the corresponding electronic component 23 on the premise of not directly contacting each other.
  • the protector 241 has the protective surface 24b opposite to the outer peripheral side of the electronic component 23, the second gap 26 is formed between the protective part 241 and the electronic component 23, that is, the protective surface 24b of the protective part 241 and the outer periphery of the electronic component 23 A second gap 26 is formed between the sides, and the second gap 26 is filled with thermal paste.
  • the Correspondingly arranged cooling platform body 24 preferably adopts the cooling platform body 24 that is molded with protective part 241, can play very good protection to the electronic component 23 that mass is larger, and centroid is far away from electronic circuit board 22 in the environment of vibration shock Function, but also can enhance heat conduction and cooling effect.
  • the contour shape of the protection surface 24 b of the protection portion 241 matches the contour shape of the outer peripheral side of the opposite electronic component 23 .
  • the protective surface 24 b of the protective portion 241 is designed to be cylindrical.
  • the second gap 26 between the protection portion 241 and the corresponding electronic component 23 is not greater than 0.5 mm, so as to ensure effective heat conduction, heat dissipation and protection.
  • the protective surface 24b of the protective portion 241 maintains a uniform distance of not more than 0.5 mm from the outer peripheral side of the opposite electronic component 23 without direct contact.
  • the heat dissipation adhesive is thermal conductive silica gel.
  • the filling of the heat dissipation glue can be carried out during the final assembly process of the electronic control integrated executive motor product.
  • the housing 21 of the controller 2 includes a bottom case 211 and a cover case 212, the bottom case 211 is mounted on the motor housing 11 of the motor 1, the cover case 212 and the bottom case
  • the shells 211 are relatively connected to form the cavity 20.
  • the electronic circuit board 22 is installed and fixed on the bottom shell 211.
  • the electronic components 23 on the electronic circuit board 22 are all located on the side of the electronic circuit board 22 facing the cover shell 212.
  • the body 24 is formed on the cover shell 212 and is arranged opposite to each electronic component 23 on the electronic circuit board 22 in a one-to-one correspondence.
  • the casing 21 of the controller 2 adopts a cast aluminum casing.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

本发明涉及集成电机技术领域，尤其涉及一种电子控制集成式执行电机，包括电机和控制电机的控制器，控制器包括内部具有空腔的外壳和安装在空腔内的电子线路板，外壳安装在电机上，电子线路板上板载有若干具有发热量的电子元件，空腔的内腔壁上在与各电子元件相对的位置处分别成型有散热台体，各散热台体与相对的电子元件之间均间隔形成第一间隙，第一间隙内填充有散热胶。工作时的内部热量可以借助散热胶和散热台体传导至控制器外壳散热，从而可通过可靠的散热实现大功率；散热胶固化后的状态近似橡胶，在振动冲击环境中可以对电子元件起到有效的保护作用，从而可在使用常规元件的前提下满足强量级振动冲击要求。

Description

电子控制集成式执行电机 技术领域
本发明涉及集成电机技术领域，尤其涉及一种电子控制集成式执行电机。
背景技术
目前，车用电子控制集成式执行电机尚在起步阶段，面世的产品多为电子控制器与电机的简单集成，不对散热进行针对设计的情况下电机绕组的大发热量以及电子控制器常用的注塑壳体散热能力不足，将限制产品设计时允许的功率，使常见的控制集成电机功率往往偏小。同时因为集成化，电子线路板部分也需要按照电机的强量级振动冲击进行设计，常见方式为选用专用元件，导致单价较高。
发明内容
本发明要解决的技术问题是提供一种电子控制集成式执行电机，能够通过可靠的散热实现大功率，并在使用常规元件的前提下满足强量级振动冲击要求，以克服现有技术的上述缺陷。
为了解决上述技术问题，本发明采用如下技术方案：一种电子控制集成式执行电机，包括电机和控制电机的控制器，控制器包括内部具有空腔的外壳和安装在空腔内的电子线路板，外壳安装在电机上，电子线路板上板载有若干具有发热量的电子元件，空腔的内腔壁上在与各电子元件相对的位置处分别成型有散热台体，各散热台体与相对的电子元件之间均间隔形成第一间隙，第一间隙内填充有散热胶。
优选地，第一间隙不大于0.5毫米。
优选地，至少一个散热台体上成型有环绕于电子元件外周侧的保护部，保护部与电子元件之间间隔形成第二间隙，第二间隙内填充有散热胶。
优选地，第二间隙不大于0.5毫米。
优选地，散热胶为导热硅胶。
优选地，外壳包括安装在电机上的底壳和与底壳相对连接构成空腔的盖壳，电子线路板设于底壳上，各散热台体均成型于盖壳上。
优选地，外壳为铸铝外壳。
与现有技术相比，本发明具有显著的进步：
本发明的电子控制集成式执行电机，在控制器的外壳空腔内部对应于每个具有发热量的电子元件设置单独的散热台体，每个散热台体与相对应的电子元件均在不直接接触的前提下保持间隔距离，并在各散热台体与相对的电子元件之间的第一间隙内填充散热胶，由此，本发明的电子控制集成式执行电机工作时产生的内部热量可以借助散热胶和散热台体传导至控制器外壳，而传导至控制器外壳的热量可以依靠控制器外壳外表面上的散热结构进行被动散热，因此，本发明的电子控制集成式执行电机能够实现可靠的散热效果，从而能够通过可靠的散热实现大功率。同时，由于填充在各散热台体与相对的电子元件之间的散热胶固化后的状态近似橡胶，在振动冲击环境中可以对电子元件起到有效的保护作用，因此，本发明的电子控制集成式执行电机能够在使用常规元件的前提下满足强量级振动冲击要求。
附图说明
图1是本发明实施例的电子控制集成式执行电机的总体结构示意图。
图2是本发明实施例的电子控制集成式执行电机的剖面示意图。
图3是本发明实施例的电子控制集成式执行电机的分体示意图。
图4是本发明实施例的电子控制集成式执行电机中，盖壳的结构示意图。
图5是本发明实施例的电子控制集成式执行电机中，未设有保护部的散热台体与电子元件相对布置的剖面示意图。
图6是本发明实施例的电子控制集成式执行电机中，设有保护部的散热台体与电子元件相对布置的剖面示意图。
图7是本发明实施例的电子控制集成式执行电机中，散热台体的保护部环绕于电子元件外周侧的剖面示意图。
其中，附图标记说明如下：
1               电机
11              电机壳体
12              定子
13              轴承
14              转子
2               控制器
20               空腔
21               外壳
211              底壳
212              盖壳
22               电子线路板
23               电子元件
24               散热台体
24a              导热面
24b              保护面
241              保护部
25               第一间隙
26               第二间隙
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细说明。这些实施方式仅用于说明本发明，而并非对本发明的限制。
在本发明的描述中，需要说明的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
如图1至图7所示，本发明的电子控制集成式执行电机的一种实施例。
参见图1、图2和图3，本实施例的电子控制集成式执行电机包括电机1和控制器2，控 制器2集成在电机1上，控制器2控制电机1运行。
其中，电机1为常规执行电机，电机1包括内部中空的电机壳体11、内置于电机壳体11内的定子12、穿设于所述定子12并通过轴承13支撑在电机壳体11上的转子14。
控制器2包括外壳21和电子线路板22，外壳21内部具有空腔20，电子线路板22安装在空腔20内。外壳21安装在电机1上，外壳21与电机壳体11固定相连。电子线路板22上板载有若干电子元件23，工作时，各电子元件23均具有较高发热量。
结合图3、图4和图5，空腔20的内腔壁上在与各电子元件23相对的位置处分别成型有散热台体24，即空腔20的内腔壁上成型有若干散热台体24，若干散热台体24与若干电子元件23一一对应地相对设置，每个散热台体24均具有与对应的电子元件23相对的导热面24a，并且，各散热台体24与相对的电子元件23之间均间隔形成第一间隙25，即各散热台体24的导热面24a与相对的电子元件23之间均间隔形成第一间隙25，第一间隙25内填充有散热胶。
本实施例的电子控制集成式执行电机，在控制器2的外壳21空腔20内部对应于每个具有发热量的电子元件23设置单独的散热台体24，每个散热台体24与相对应的电子元件23均在不直接接触的前提下保持间隔距离，并在各散热台体24与相对的电子元件23之间的第一间隙25内填充散热胶，由此，本实施例的电子控制集成式执行电机工作时产生的内部热量可以借助散热胶和散热台体24传导至控制器2外壳21，而传导至控制器2外壳21的热量可以依靠控制器2外壳21外表面上的散热结构进行被动散热，因此，本实施例的电子控制集成式执行电机能够实现可靠的散热效果，从而能够通过可靠的散热实现大功率。同时，由于填充在各散热台体24与相对的电子元件23之间的散热胶固化后的状态近似橡胶，在振动冲击环境中可以对电子元件23起到有效的保护作用，因此，本实施例的电子控制集成式执行电机能够在使用常规元件的前提下满足强量级振动冲击要求。
本实施例中，优选地，各散热台体24与相对的电子元件23之间的第一间隙25不大于0.5毫米，以保证有效的热传导和散热效果。最佳地，每个散热台体24与相对应的电子元件23均在不直接接触的前提下保持不大于0.5毫米的均匀间隔距离。
参见图6和图7，优选地，控制器2外壳21空腔20的内腔壁上成型的若干散热台体24中，有至少一个散热台体24上成型有环绕于电子元件23外周侧的保护部241，保护部241具有与电子元件23外周侧面相对的保护面24b，保护部241与电子元件23之间间隔形成第二间隙26，即保护部241的保护面24b与电子元件23的外周侧面之间间隔形成第二间隙26， 第二间隙26内填充有散热胶。由此可以增强对电子元件23的保护作用，同时也可以增强热传导和散热效果。通常，电子线路板22上板载的若干电子元件23中，存在质量较大、质心距离电子线路板22较远的电子元件23(如电容、电感等)，对于这类电子元件23，与之相对应设置的散热台体24优选采用成型有保护部241的散热台体24，在振动冲击环境中可以对质量较大、质心距离电子线路板22较远的电子元件23起到很好的保护作用，同时也可以增强热传导和散热效果。
本实施例中，对于成型有保护部241的散热台体24，其保护部241的保护面24b轮廓形状与相对的电子元件23外周侧面轮廓形状相匹配。例如，参见图6和图7，质量较大、质心距离电子线路板22较远的电子元件23为圆柱状时，保护部241的保护面24b则设计为圆筒状。
优选地，保护部241与相对应的电子元件23之间的第二间隙26不大于0.5毫米，以保证有效的热传导和散热效果以及保护作用。最佳地，保护部241的保护面24b与相对的电子元件23的外周侧面在不直接接触的前提下保持不大于0.5毫米的均匀间隔距离。
本实施例中，优选地，散热胶为导热硅胶。
本实施例中，散热胶的填充可以在电子控制集成式执行电机产品总装过程中进行。
本实施例中，优选地，参见图2和图3，控制器2的外壳21包括底壳211和盖壳212，底壳211安装在电机1的电机壳体11上，盖壳212与底壳211相对连接构成空腔20，电子线路板22安装固定在底壳211上，电子线路板22上板载的若干电子元件23均位于电子线路板22朝向盖壳212的一侧，各散热台体24均成型于盖壳212上并与电子线路板22上的各电子元件23一一对应地间隔相对设置。
为增强散热效果，优选地，本实施例中，控制器2的外壳21采用铸铝外壳。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本发明的保护范围。

Claims (7)

  1. 一种电子控制集成式执行电机，包括电机(1)和控制所述电机(1)的控制器(2)，其特征在于，所述控制器(2)包括内部具有空腔(20)的外壳(21)和安装在所述空腔(20)内的电子线路板(22)，所述外壳(21)安装在所述电机(1)上，所述电子线路板(22)上板载有若干具有发热量的电子元件(23)，所述空腔(20)的内腔壁上在与各所述电子元件(23)相对的位置处分别成型有散热台体(24)，各所述散热台体(24)与相对的所述电子元件(23)之间均间隔形成第一间隙(25)，所述第一间隙(25)内填充有散热胶。
  2. 根据权利要求1所述的电子控制集成式执行电机，其特征在于，所述第一间隙(25)不大于0.5毫米。
  3. 根据权利要求1所述的电子控制集成式执行电机，其特征在于，至少一个所述散热台体(24)上成型有环绕于所述电子元件(23)外周侧的保护部(241)，所述保护部(241)与所述电子元件(23)之间间隔形成第二间隙(26)，所述第二间隙(26)内填充有散热胶。
  4. 根据权利要求3所述的电子控制集成式执行电机，其特征在于，所述第二间隙(26)不大于0.5毫米。
  5. 根据权利要求1或3所述的电子控制集成式执行电机，其特征在于，所述散热胶为导热硅胶。
  6. 根据权利要求1所述的电子控制集成式执行电机，其特征在于，所述外壳(21)包括安装在所述电机(1)上的底壳(211)和与所述底壳(211)相对连接构成所述空腔(20)的盖壳(212)，所述电子线路板(22)设于所述底壳(211)上，各所述散热台体(24)均成型于所述盖壳(212)上。
  7. 根据权利要求1所述的电子控制集成式执行电机，其特征在于，所述外壳(21)为铸铝外壳(21)。
PCT/CN2022/116691 2022-02-08 2022-09-02 电子控制集成式执行电机 WO2023151265A1 (zh)

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