WO2022126549A1 - 一种具有衬套的钩型换向器 - Google Patents

一种具有衬套的钩型换向器 Download PDF

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Publication number
WO2022126549A1
WO2022126549A1 PCT/CN2020/137376 CN2020137376W WO2022126549A1 WO 2022126549 A1 WO2022126549 A1 WO 2022126549A1 CN 2020137376 W CN2020137376 W CN 2020137376W WO 2022126549 A1 WO2022126549 A1 WO 2022126549A1
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Prior art keywords
bushing
commutator
base body
groove
hook
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PCT/CN2020/137376
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English (en)
French (fr)
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韩继利
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太仓理标智能科技有限公司
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Priority to PCT/CN2020/137376 priority Critical patent/WO2022126549A1/zh
Publication of WO2022126549A1 publication Critical patent/WO2022126549A1/zh
Priority to ZA2022/07106A priority patent/ZA202207106B/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/04—Commutators

Definitions

  • the invention belongs to the technical field of commutators, and particularly relates to a hook-type commutator with a bushing.
  • the commutator is an important part of the armature of the DC motor and the AC commutator motor, which plays a commutation role when the motor rotates.
  • the commutator is mainly used in the motor industry.
  • the commutator is divided into a plane commutator, a slot commutator and a hook commutator. It is composed of mica sheets between adjacent commutator segments, and insulating grooves are arranged between adjacent commutator segments to separate and insulate each commutator segment.
  • the purpose of the present invention is to provide a hook-type commutator with a bushing, which has a simple structure, and the various parts of the commutator are firmly combined, effectively preventing the bushing from rotating and the commutator cracking.
  • a reinforcing ring is set to make the overall structure more solid, avoid the spark caused by the phenomenon of jumping pieces and flying pieces, improve the mechanical performance of the commutator, and prolong the service life of the commutator.
  • a hook-type commutator with bushing including a base body, a bushing, a commutator piece, a mica sheet and a reinforcing ring
  • the inner wall of the base body is provided with a bushing
  • the commutator piece is uniform along the outer circumference of the base body
  • the mica sheet is arranged between the adjacent commutator segments
  • the reinforcing ring is arranged at one end of the base with a boss
  • the outer wall of the bushing is provided with a plurality of transverse grooves and longitudinal grooves
  • the transverse grooves are dovetail-shaped and matched with the inner wall of the base
  • the longitudinal grooves are evenly arranged along the outer circumference of the bushing.
  • the reinforcing ring makes the overall structure stronger, and the outer surface of the bushing is provided with transverse grooves and longitudinal grooves, so that the bushing and the base body have a higher degree of bonding, and the bonding firmness of the bushing and the base body is strengthened. , effectively prevent the relative circumferential rotation, axial play and rotation and other problems during the high-speed operation of the motor, and improve the mechanical performance of the commutator.
  • a washer is provided between the reinforcing ring and the base body.
  • a first convex portion is provided in the middle portion of the outer wall of the base body, and oppositely arranged second convex portions are provided on both sides of the first convex portion.
  • a first groove is provided in the middle of the commutator segment, and a second groove is provided at both ends, and one end of the commutator segment close to the reinforcing ring is provided with a hook. type bending.
  • the first groove is T-shaped
  • the second groove is U-shaped
  • the grooves of the first groove and the second groove are turned Rounded corners.
  • the first convex portion is inserted into the first groove and matched with the first groove
  • the second convex portion is inserted into the second groove and cooperates with the first groove.
  • the second groove is matched.
  • the groove of the commutator piece and the convex part of the base body cooperate with each other, which increases the contact area between the commutator piece and the base body, strengthens the bonding degree of the commutator piece and the base body, and prevents the occurrence of the phenomenon of the commutator piece jumping and flying.
  • a fixing ring is provided between the second convex portion and the second groove.
  • the fixing ring can strengthen the overall structure of the commutator and prevent the commutator from being deformed.
  • the longitudinal grooves are combined into arc-shaped tooth surfaces.
  • the arc-shaped tooth surface can increase the contact area between the bushing and the base body, so that the combination between the bushing and the base body is firmer.
  • the reaming holes at both ends of the base body are provided with 30° chamfers.
  • the present invention has the following beneficial effects:
  • the reinforcing ring makes the overall structure stronger
  • the outer surface of the bushing is provided with transverse grooves and longitudinal grooves, so that the bushing and the base body have a higher degree of bonding, and the bushing is reinforced.
  • the firmness of the combination between the sleeve and the base effectively prevents the relative circumferential rotation, axial movement and self-rotation problems during the high-speed operation of the motor, improves the mechanical performance of the commutator and prolongs the service life of the commutator.
  • the fixing ring can enhance the overall structure of the commutator and prevent the commutator from being deformed
  • the groove of the commutator piece cooperates with the convex part of the base body, which increases the contact area between the commutator piece and the base body, and prevents the commutator piece from jumping and flying. The occurrence of the chip phenomenon, thereby extending the service life of the commutator.
  • FIG. 1 is a schematic structural diagram of a hook-type commutator with a bushing according to the present invention
  • FIG. 2 is a schematic diagram of a bushing of a hook-type commutator with bushing according to the present invention
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first”, “second” may expressly or implicitly include one or more of that feature.
  • plural means two or more, unless otherwise expressly defined.
  • a first feature "on” or “under” a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature is directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • a hook type commutator with a bushing includes a base body 1, a bushing 2, a commutating piece 3, a mica sheet 4 and a reinforcing ring 5.
  • the base body 1 The inner wall is provided with a bushing 2, the commutator segments 3 are evenly arranged along the outer circumference of the base body 1, the mica sheets 4 are arranged between the adjacent commutator segments 3, and the reinforcing ring 5 is arranged on the base body 1.
  • the outer wall of the bushing 2 is provided with a plurality of transverse grooves 21 and longitudinal grooves 22, the transverse grooves 21 are dovetail-shaped and matched with the inner wall of the base body 1, and the longitudinal grooves 22 are along the bushing. 2
  • the outer circumference is evenly arranged.
  • the reinforcing ring 5 makes the overall structure of the commutator stronger.
  • the transverse grooves 21 and the longitudinal grooves 22 provided on the outer surface of the bushing 2 provide a higher degree of bonding between the bushing 2 and the base body 1, and strengthen the The firmness of the combination between the bushing 2 and the base body 1 is effectively prevented from occurring relative circumferential rotation, axial play and rotation during the high-speed operation of the motor, and the mechanical performance of the commutator is improved.
  • a hook type commutator with a bushing includes a base body 1, a bushing 2, a commutating piece 3, a mica sheet 4 and a reinforcing ring 5.
  • the base body 1 The inner wall is provided with a bushing 2, the commutator segments 3 are evenly arranged along the outer circumference of the base body 1, the mica sheets 4 are arranged between the adjacent commutator segments 3, and the reinforcing ring 5 is arranged on the base body 1.
  • the outer wall of the bushing 2 is provided with a plurality of transverse grooves 21 and longitudinal grooves 22, the transverse grooves 21 are dovetail-shaped and matched with the inner wall of the base body 1, and the longitudinal grooves 22 are along the bushing. 2
  • the outer circumference is evenly arranged.
  • the reinforcing ring 5 makes the overall structure of the commutator stronger.
  • the transverse grooves 21 and the longitudinal grooves 22 provided on the outer surface of the bushing 2 provide a higher degree of bonding between the bushing 2 and the base body 1, and strengthen the The firmness of the combination between the bushing 2 and the base body 1 is effectively prevented from occurring relative circumferential rotation, axial play and rotation during the high-speed operation of the motor, and the mechanical performance of the commutator is improved.
  • a washer 6 is provided between the reinforcing ring 5 and the base body 1 .
  • the middle of the outer wall of the base body 1 is provided with a first convex portion 11 , and the two sides of the first convex portion 11 are provided with oppositely arranged second convex portions 12 .
  • a first groove 31 is formed in the middle of the commutation piece 3 , and a second groove 32 is formed at both ends.
  • the end of the commutation piece 3 close to the reinforcing ring 5 is provided with a hook-shaped bend 33 .
  • the first groove 31 is T-shaped
  • the second groove 32 is U-shaped
  • the corners of the grooves of the first groove 31 and the second groove 32 are rounded.
  • the first convex portion 11 is inserted into the first groove 31 and matched with the first groove 31
  • the second convex portion 12 is inserted into the second groove 32 and matched with the second groove 32 .
  • the groove of the commutator segment 3 cooperates with the convex portion of the base body 1 to increase the contact area between the commutator segment 3 and the base body 1 , and prevent the occurrence of the phenomenon of the commutator segment 1 jumping and flying.
  • a fixing ring 7 is provided between the second convex portion 12 and the second groove 32 .
  • the fixing ring 7 can enhance the overall structure of the commutator and prevent the commutator from being deformed.
  • the longitudinal grooves 22 are combined into arc-shaped tooth surfaces.
  • the arc-shaped tooth surface can increase the contact area between the bushing 2 and the base body 1 , so that the combination between the bushing 2 and the base body 1 is more firm.
  • the reaming holes at both ends of the base body 1 are provided with 30° chamfers.

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  • Motor Or Generator Current Collectors (AREA)

Abstract

一种具有衬套的钩型换向器，包括基体（1）、衬套（2）、换向片（3）、云母片（4）和加强环（5），基体（1）内壁设有衬套（2），换向片（3）沿基体（1）外侧圆周均匀排布，云母片（4）设于相邻的换向片（3）之间，加强环（5）设于基体（1）有凸台的一端，衬套（2）外壁设有多个横向凹槽（21）和纵向凹槽（22），横向凹槽（21）为燕尾形并与基体（1）内壁相配合，纵向凹槽（22）沿衬套（2）外侧圆周均匀排布。该具有衬套的钩型换向器结构简单，各部分结合牢固，有效防止了衬套自转和开裂，同时设置了加强环使得整体结构更加坚固，提高了换向器的机械性能，延长了换向器的使用寿命。

Description

一种具有衬套的钩型换向器 技术领域
本发明属于换向器技术领域，特别涉及一种具有衬套的钩型换向器。
背景技术
换向器是直流电机和交流整流子电动机电枢的一个重要部件，在电机转动时起换向作用。换向器主要用于电机行业，换向器分为平面型换向器、槽型换向器及钩形换向器，它主要由绝缘基体、排布在基体圆周面上的换向片和相邻换向片之间的云母片组成，相邻换向片之间设置绝缘槽而将各换向片分离绝缘。
在电机高速运转时，离心力大，由于换向器整体结合不牢固而导致换向器容易产生跳片，飞片现象，导致电火花等级增强，以及衬套与换向器间的粘合不牢固而造成衬套自转，换向器开裂，从而影响换向器的使用寿命。
发明内容
发明目的：为了克服以上不足，本发明的目的是提供一种具有衬套的钩型换向器，其结构简单，换向器各部分结合牢固，有效防止了衬套自转，换向器开裂问题，同时设置了加强环，使得整体结构更加坚固，避免因跳片飞片现象导致的电火花，提高换向器的机械性能，延长换向器的使用寿命。
技术方案：一种具有衬套的钩型换向器，包括基体、衬套、换向片、云母片和加强环，所述基体内壁设有衬套，所述换向片沿基体外侧圆周均匀排布，所述云母片设于相邻的换向片之间，所述加强环设于基体有凸台的一端，所述衬套外壁设有多个横向凹槽和纵向凹槽，所述横向凹槽为燕尾形并与基体内壁相配合，所述纵向凹槽沿衬套外侧圆周均匀排布。所述加强环使得整体结构更加坚固，所述衬套外表面设置有横向凹槽和纵向凹槽，使衬套与基体之间具有更高的结合度，加固了衬套与基体的结合牢固度，有效地防止了其在电机高速运转过程中发生相对周向转动、轴向窜动及自转等问题，提高了换向器的机械性能。
进一步的，上述的具有衬套的钩型换向器，所述加强环与基体之间设有垫圈。
进一步的，上述的具有衬套的钩型换向器，所述基体外壁中部设有第一凸部，所述第一凸部两侧设有相对设置的第二凸部。
进一步的，上述的具有衬套的钩型换向器，所述换向片中间设有第一凹槽，两端设有第二凹槽，所述换向片靠近加强环的一端设有钩型折弯。
进一步的，上述的具有衬套的钩型换向器，所述第一凹槽为T型，所述第二凹槽为 U型，所述第一凹槽和第二凹槽的凹槽转折处导圆角。
进一步的，上述的具有衬套的钩型换向器，所述第一凸部插入第一凹槽内并与第一凹槽相配合，所述第二凸部插入第二凹槽内并与第二凹槽相配合。所述换向片凹槽与基体凸部相互配合，增加了换向片与基体的接触面积，加强了换向片与基体的结合度，防止换向片跳片和飞片现象的发生。
进一步的，上述的具有衬套的钩型换向器，所述第二凸部与第二凹槽之间设有固定环。所述固定环能够增强换向器整体结构，防止换向器发生变形。
进一步的，上述的具有衬套的钩型换向器，所述纵向凹槽组合成弧形齿形面。所述弧形齿形面能增加衬套与基体的接触面积，使衬套与基体之间的结合更加牢固。
进一步的，上述的具有衬套的钩型换向器，所述基体两端的扩孔设有30°倒角。
上述技术方案可以看出，本发明具有如下有益效果：
1、本发明所述的具有衬套的钩型换向器，所述加强环使得整体结构更加坚固；
2、本发明所述的具有衬套的钩型换向器，所述衬套外表面设置有横向凹槽和纵向凹槽，使衬套与基体之间具有更高的结合度，加固了衬套与基体的结合牢固度，有效地防止了其在电机高速运转过程中发生相对周向转动、轴向窜动及自转等问题，提高了换向器的机械性能，延长换向器的使用寿命；
3、本发明所述的具有衬套的钩型换向器，所述固定环能够增强换向器整体结构，防止换向器发生变形；
4、本发明所述的具有衬套的钩型换向器，所述换向片凹槽与基体凸部相互配合，增加了换向片与基体的接触面积，防止换向片跳片和飞片现象的发生，从而延长换向器的使用寿命。
附图说明
图1为本发明所述的一种具有衬套的钩型换向器的结构示意图；
图2为本发明所述的一种具有衬套的钩型换向器的衬套的示意图；
图中：1基体、11第一凸部、12第二凸部、2衬套、21横向凹槽、22纵向凹槽、3换向片、31第一凹槽、32第二凹槽、33折弯、4云母片、5加强环、6垫圈、7固定环。
具体实施方式
下面结合附图和具体实施例，进一步阐明本发明。
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“顺时针”、“逆时针”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或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。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，除非另有明确的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，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。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
实施例1
如图1-2所示，本发明所述的一种具有衬套的钩型换向器，包括基体1、衬套2、换向片3、云母片4和加强环5，所述基体1内壁设有衬套2，所述换向片3沿基体1外侧圆周均匀排布，所述云母片4设于相邻的换向片3之间，所述加强环5设于基体1有凸台的一端，所述衬套2外壁设有多个横向凹槽21和纵向凹槽22，所述横向凹槽21为燕尾形并与基体1内壁相配合，所述纵向凹槽22沿衬套2外侧圆周均匀排布。所述加强环5使得换向器整体结构更加坚固，所述衬套2外表面设置的横向凹槽21和纵向凹槽22，使衬套2与基体1之间具有更高的结合度，加固了衬套2与基体1的结合牢固度，有效地防止了其在电机高速运转过程中发生相对周向转动、轴向窜动及自转等问题，提高了换向器的机械性能。
实施例2
如图1-2所示，本发明所述的一种具有衬套的钩型换向器，包括基体1、衬套2、换向片3、云母片4和加强环5，所述基体1内壁设有衬套2，所述换向片3沿基体1外侧圆周均匀排布，所述云母片4设于相邻的换向片3之间，所述加强环5设于基体1有凸台的一端，所述衬套2外壁设有多个横向凹槽21和纵向凹槽22，所述横向凹槽21为燕尾形并与基体1内壁相配合，所述纵向凹槽22沿衬套2外侧圆周均匀排布。所述加强环5使得换向器整体结构更加坚固，所述衬套2外表面设置的横向凹槽21和纵向凹槽22，使衬套2与基体1之间具有更高的结合度，加固了衬套2与基体1的结合牢固度，有效地防止了其在电机高速运转过程中发生相对周向转动、轴向窜动及自转等问题，提高了换向器的机械性能。
所述加强环5与基体1之间设有垫圈6。
所述基体1外壁中部设有第一凸部11，所述第一凸部11两侧设有相对设置的第二凸部12。
所述换向片3中间设有第一凹槽31，两端设有第二凹槽32，所述换向片3靠近加强环5的一端设有钩型折弯33。
所述第一凹槽31为T型，所述第二凹槽32为U型，所述第一凹槽31和第二凹槽32的凹槽转折处导圆角。
所述第一凸部11插入第一凹槽31内并与第一凹槽31相配合，所述第二凸部12插入第二凹槽32内并与第二凹槽32相配合。所述换向片3凹槽与基体1凸部相互配合，增加了换向片3与基体1的接触面积，防止换向片1跳片和飞片现象的发生。
所述第二凸部12与第二凹槽32之间设有固定环7。所述固定环7能够增强换向器整体结构，防止换向器发生变形。
所述纵向凹槽22组合成弧形齿形面。所述弧形齿形面能增加衬套2与基体1的接触面积，使衬套2与基体1之间的结合更加牢固。
所述基体1两端的扩孔设有30°倒角。
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，在不脱离本发明原理的前提下，还可以做出若干改进，这些改进也应视为本发明的保护范围。

Claims (9)

  1. 一种具有衬套的钩型换向器，其特征在于：包括基体(1)、衬套(2)、换向片(3)、云母片(4)和加强环(5)，所述基体(1)内壁设有衬套(2)，所述换向片(3)沿基体(1)外侧圆周均匀排布，所述云母片(4)设于相邻的换向片(3)之间，所述加强环(5)设于基体(1)有凸台的一端，所述衬套(2)外壁设有多个横向凹槽(21)和纵向凹槽(22)，所述横向凹槽(21)为燕尾形并与基体(1)内壁相配合，所述纵向凹槽(22)沿衬套(2)外侧圆周均匀排布。
  2. 根据权利要求1所述的具有衬套的钩型换向器，其特征在于：所述加强环(5)与基体(1)之间设有垫圈(6)。
  3. 根据权利要求1所述的具有衬套的钩型换向器，其特征在于：所述基体(1)外壁中部设有第一凸部(11)，所述第一凸部(11)两侧设有相对设置的第二凸部(12)。
  4. 根据权利要求1所述的具有衬套的钩型换向器，其特征在于：所述换向片(3)中间设有第一凹槽(31)，两端设有第二凹槽(32)，所述换向片(3)靠近加强环(5)的一端设有钩型折弯(33)。
  5. 根据权利要求4所述的具有衬套的钩型换向器，其特征在于：所述第一凹槽(31)为T型，所述第二凹槽(32)为U型，所述第一凹槽(31)和第二凹槽(32)的凹槽转折处导圆角。
  6. 根据权利要求5所述的具有衬套的钩型换向器，其特征在于：所述第一凸部(11)插入第一凹槽(31)内并与第一凹槽(31)相配合，所述第二凸部(12)插入第二凹槽(32)内并与第二凹槽(32)相配合。
  7. 根据权利要求6所述的具有衬套的钩型换向器，其特征在于：所述第二凸部(12)与第二凹槽(32)之间设有固定环(7)。
  8. 根据权利要求1所述的具有衬套的钩型换向器，其特征在于：所述纵向凹槽(22)组合成弧形齿形面。
  9. 根据权利要求1所述的具有衬套的钩型换向器，其特征在于：所述基体(1)两端的扩孔设有30°倒角。
PCT/CN2020/137376 2020-12-17 2020-12-17 一种具有衬套的钩型换向器 WO2022126549A1 (zh)

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ZA2022/07106A ZA202207106B (en) 2020-12-17 2022-06-27 Hook type commutator having bushing

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0993875A (ja) * 1995-09-20 1997-04-04 Shibaura Eng Works Co Ltd モールド整流子
CN2657239Y (zh) * 2003-11-11 2004-11-17 浙江利丰电器股份有限公司 换向器用衬套
CN204464717U (zh) * 2015-03-24 2015-07-08 浙江卓进电器有限公司 带加强环钩型换向器
CN207542537U (zh) * 2017-12-21 2018-06-26 江苏安固电器有限公司 一种具有弹簧衬套的钩型换向器
CN109742627A (zh) * 2019-03-07 2019-05-10 江苏利丰机电有限公司 一种带加固环的稳固型换向器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0993875A (ja) * 1995-09-20 1997-04-04 Shibaura Eng Works Co Ltd モールド整流子
CN2657239Y (zh) * 2003-11-11 2004-11-17 浙江利丰电器股份有限公司 换向器用衬套
CN204464717U (zh) * 2015-03-24 2015-07-08 浙江卓进电器有限公司 带加强环钩型换向器
CN207542537U (zh) * 2017-12-21 2018-06-26 江苏安固电器有限公司 一种具有弹簧衬套的钩型换向器
CN109742627A (zh) * 2019-03-07 2019-05-10 江苏利丰机电有限公司 一种带加固环的稳固型换向器

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