CN114696513A - Insulating connecting device and motor using same - Google Patents
Insulating connecting device and motor using same Download PDFInfo
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- CN114696513A CN114696513A CN202011629209.6A CN202011629209A CN114696513A CN 114696513 A CN114696513 A CN 114696513A CN 202011629209 A CN202011629209 A CN 202011629209A CN 114696513 A CN114696513 A CN 114696513A
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- 239000002184 metal Substances 0.000 claims abstract description 123
- 238000009413 insulation Methods 0.000 claims abstract description 52
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/08—Insulating casings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
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Abstract
The insulating connecting device comprises a first metal support, a second metal support and an insulating assembly, wherein the insulating assembly is arranged between the first metal support and the second metal support, the first metal support is connected with the motor, and the second metal support is connected with a mounting surface and then grounded; the insulating assembly comprises a plurality of insulating plates, and the first metal support, the insulating assembly and the second metal support are detachably connected through insulating connectors; according to the insulating connecting device, the motor is connected with the first metal support, the insulating assembly is arranged between the first metal support and the second metal support, and then the second metal support is grounded to realize floating connection of the motor, so that the safety requirement of the floating connection of the motor in various use scenes on ground insulation can be realized without being limited by arrangement space.
Description
Technical Field
The invention relates to a connecting device, in particular to an insulating connecting device and a motor using the same.
Background
The motor is an electromagnetic device for realizing electromechanical energy conversion and signal conversion, the motor for signal conversion is called a control motor, and the motor for energy conversion is called a power motor. In the power motor, a generator that converts mechanical energy into electric energy is called and a motor that converts electric energy into mechanical energy is called. According to the different types of current, the power motors are divided into two types, namely alternating current motors and direct current motors. The alternating current motor is divided into an asynchronous motor and a synchronous motor according to different working principles, and each motor is divided into a single phase and a three phase.
The motor is widely applied to power generation equipment of various power stations, power equipment of industry and transportation industry and signal conversion equipment in an automatic control system. When the motor is installed, in order to prevent the electric leakage from causing human body injury and improve the use safety of electrical equipment and mechanical equipment, a grounding structure needs to be arranged on the motor shell. However, the existing way of connecting the motor housing to the ground sometimes cannot meet the safety requirement in some special application scenarios.
How to realize the ground insulation of the motor in some special application scenes still remains a technical problem to be solved urgently.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present disclosure is to provide an insulation connection device to solve the problem that the grounding of the motor housing in the prior art cannot meet the requirement of safety of the motor to the ground insulation in some scenarios.
In order to solve the technical problems, the specific technical scheme is as follows:
in one aspect, an insulated connecting device is provided, which includes a first metal support, a second metal support and an insulating assembly, wherein the insulating assembly is disposed between the first metal support and the second metal support, the first metal support is connected with a motor, and the second metal support is connected with a mounting surface and then grounded; the insulating assembly comprises a plurality of insulating plates, and the first metal support, the insulating assembly and the second metal support are detachably connected through insulating connectors.
Specifically, the insulation assembly comprises at least one first insulation plate and at least one second insulation plate, the first insulation plate and the second insulation plate are alternately arranged along the wiring direction from the first metal support to the second metal support, and the size of the first insulation plate is not equal to that of the second insulation plate.
Further, the first insulating plate and the second insulating plate are both cylindrical plates, the cross section of the first insulating plate and the cross section of the second insulating plate are both circular, the central axis of the first insulating plate and the central axis of the second insulating plate are on the same axis, and the cross-sectional area of the first insulating plate is larger than that of the second insulating plate.
Preferably, the first insulating plate and the second insulating plate are both cylindrical plates.
Preferably, the side surface of the first insulating plate and/or the side surface of the second insulating plate are provided with annular grooves or annular ribs; and/or
The surface of the first insulating plate, which is contacted with the second insulating plate, is a first curved surface, the surface of the second insulating plate, which is contacted with the first insulating plate, is a second curved surface, and the curvature of the first curved surface is matched with that of the second curved surface.
Preferably, the insulation assembly includes at least two first insulation plates, the second insulation plate is disposed between two adjacent first insulation plates, and the first metal support and the second metal support are both connected to the first insulation plates.
Specifically, the first metal support is provided with a first contact surface, and the first contact surface is in contact with one side of the insulation component; the second metal support is provided with a second boss, the second boss is provided with a second contact surface, and the second metal support is connected with the insulation assembly through the second contact surface;
the area of the first contact surface and the area of the second contact surface are both smaller than the area of the first insulating plate; the area of the first contact surface and the area of the second contact surface are both smaller than the area of the second insulating plate.
Specifically, the insulating connecting piece includes insulating bolt, nut and insulating gasket, insulating bolt includes bolt head and screw rod, the one end of screw rod with the bolt head is connected, the other end of screw rod pass in proper order first metal support, insulating subassembly with behind the second metal support with the nut spiro union, insulating gasket sets up the nut with between the second metal support and the bolt head with between the first metal support.
Further, the insulating connecting device further comprises a connecting support, and the connecting support is arranged on one side, far away from the second metal support, of the first metal support.
On the other hand, this application still provides a motor, the motor is connected with an insulating connecting device that above-mentioned technical scheme provided, the motor through connect the support with first metal support is connected.
By adopting the technical scheme, the insulating connecting device provided by the invention has the advantages that the floating connection of the motor is realized by connecting the motor with the first metal support, grounding the second metal support and arranging the insulating component between the first metal support and the second metal support, so that the circuit of the motor is not influenced by the earth electric property, and the safety requirement of the motor on the ground insulation under certain special scenes is met.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic structural view of an insulated connection device provided in an embodiment herein;
FIG. 2 shows a schematic view of an insulation assembly;
FIG. 3 is a schematic view of a structure of a first insulating plate and/or a second insulating plate;
fig. 4 is a sectional view of the first insulating plate and/or the second insulating plate of fig. 3 along a central axis thereof;
fig. 4 shows another schematic structural view of the first insulating plate and/or the second insulating plate;
FIG. 5 shows a schematic view of another insulation assembly;
fig. 6 shows another schematic view of the structure of the first insulating plate and/or the second insulating plate;
fig. 7 shows a schematic view of another insulation assembly.
Description of the symbols of the drawings:
1. a first insulating plate;
2. a second insulating plate;
3. an insulating spacer;
4. a motor;
5. connecting a support;
6. an insulating bolt;
7. a first metal support;
8. a second metal support.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments herein without making any creative effort, shall fall within the scope of protection.
It should be noted that the terms "first," "second," and the like in the description and claims herein and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments herein described are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
Examples
With the continuous development of social economy and the continuous improvement of production level, various electrical equipment appears on the market, and a motor serving as an electromagnetic mechanical device for electromechanical conversion or signal conversion is widely applied to power generation equipment, power equipment and signal conversion equipment, but the existing mode of grounding a metal shell of the motor cannot meet the safety requirement under certain special application scenes sometimes.
In view of the above-mentioned drawbacks of the prior art, the present disclosure is directed to an insulated connecting device, as shown in fig. 1 to 7, including an insulated connecting device, which includes a first metal support 7, a second metal support 8, and an insulating assembly, where the insulating assembly is disposed between the first metal support 7 and the second metal support 8, the first metal support 7 is connected to a motor, and the second metal support 8 is connected to a mounting surface and then grounded; the insulating assembly comprises a plurality of insulating plates, and the first metal support 7, the insulating assembly and the second metal support 8 are detachably connected through insulating connectors.
According to the insulating connecting device provided by the embodiment of the specification, the motor is connected with the first metal support, the second metal support is grounded, and the insulating assembly is arranged between the first metal support 7 and the second metal support 8, so that the floating connection of the motor is realized, the circuit of the motor is not influenced by the earth electric performance, and the safety requirement of the motor on the ground insulation under certain special scenes is met.
In addition, when the motor is connected in a floating manner, in different use scenes, the electric insulation requirements (such as an electric gap and a creepage distance) required to be met between the motor and the ground are different, and in the embodiment of the specification, the size of the insulation assembly can be adjusted to meet the requirements in different scenes.
In the present embodiment, the electrical gap (clearance) refers to a shortest spatial distance between two conductive members, or between one conductive member and an easily accessible surface of an appliance, and specifically, in the present specification, is a shortest spatial distance between the first metal holder 7 and the second metal holder 8.
The creepage distance (creepage distance) refers to the shortest path measured along the surface of the insulating material between two conductive parts, or between one conductive part and the accessible surface of the appliance, in this embodiment the shortest path between the first metal support 7 and the second metal support 8 along the edge of the insulating assembly.
For example: when the working voltage is less than or equal to 130V, an electric clearance between an electrified first metal support 7 and an uncharged second metal support 8 between an electric control part (such as a motor and a first metal support connected with the motor) and an uncharged metal part (such as a second metal support) needs to be larger than 1.5mm, and the creepage distance needs to be larger than 2 mm; when the working voltage is between 130V and 250V, the electric clearance is required to be larger than 2.5mm, and the creepage distance is required to be larger than 3 mm; when the working voltage is more than 250V, the electric clearance is required to be more than 3mm, the creepage distance is required to be more than 4mm, and the like.
Besides, the space for arranging the power supply machines is different, and the thickness and/or the area of the insulation component are adjusted according to the actual use requirement.
The insulation assembly comprises at least one first insulation plate 1 and at least one second insulation plate 2, the first insulation plate 1 and the second insulation plate 2 are alternately arranged along the direction from the first metal support 7 to the second metal support 8, and the size of the first insulation plate 1 is not equal to that of the second insulation plate 2.
However, in order to improve the versatility of the parts and reduce the manufacturing cost of the parts, in the embodiments of the present specification, preferably, the size of each first insulating plate 1 is the same, the size of each second insulating plate 2 is the same, and the thickness of the first insulating plate 1 is the same as the thickness of the second insulating plate 2. Therefore, repeated design is not needed, and the adaptability of the floating insulation connection device of the motor can be improved.
Therefore, in the embodiment of the specification, for the electrical insulation requirements in different use scenes, a distributor or a constructor can adaptively adjust the number of the first insulating plates 1 and the second insulating plates 2 in the insulating assembly; and the size of the first insulating plate 1 and the size of the second insulating plate 2 can be adaptively adjusted.
For example, the electrical gap requirement to be met can be mainly realized by increasing or decreasing the total thickness of the first insulating plate 1 and the second insulating plate 2 (for example, increasing the number of insulating plates and increasing the thickness of a single insulating plate); for the creepage distance to be satisfied, the creepage distance can be mainly achieved by adjusting the elongation of the first insulating plate 1 relative to the second insulating plate 2 (i.e. the part of the first insulating plate that extends out of the edge of the second insulating plate after the center of the first insulating plate is aligned with the center of the second insulating plate), and the larger the elongation of the first insulating plate 1 relative to the second insulating plate 2 is, the larger the creepage distance between the first metal support 7 and the second metal support 8 is; the effect of increasing the total creepage distance can also be achieved to some extent by increasing the thickness of the first insulating plate 1 and the second insulating plate 2; of course, it is also possible to superimpose the adjustment of the elongation of the first insulating plate with respect to the second insulating plate with the adjustment of the number of insulating plates.
It should be noted that, in the embodiment of the present specification, the number relationship between the first insulating plate 1 and the second insulating plate 2 may be: the number of first insulating plates 1 is greater than, equal to or less than the number of second insulating plates 2. The upper surface of the insulating assembly (which refers to the surface of the insulating assembly contacting with the first metal support) may be the surface of the first insulating plate or the surface of the second insulating plate; similarly, the lower surface (the surface in contact with the second metal holder 8) of the insulating assembly may be the surface of the first insulating plate 1 or the surface of the second insulating plate 2. For example, fig. 1 shows a schematic structural diagram of an insulating connection device, wherein the number of first insulating plates 1 is equal to the number of second insulating plates 2, the upper surface of the insulating assembly is a surface of the second insulating plate, and the lower surface of the insulating assembly is a surface of the first insulating plate.
In the present embodiment, the material of the first insulating plate 1 and the material of the second insulating plate 2 may be the same or different. Since the insulation panels are mostly operated in outdoor environments, they are directly affected by atmospheric conditions (e.g., rain, dust, etc.); in the working environment close to the traffic line, the coal dust can be polluted by vehicle tail gas, railway coal dust and the like. If the surface of the insulating plate is adhered with foreign particles, insulation leakage is likely to occur. And the electric arc that impurity particle caused can make insulating board surface carbonization more, seriously influences the life and the insulating properties of insulating board, and then makes the motor to the insulating security performance of ground receive the influence. Therefore, the insulating plate must have strict process requirements in manufacturing, ensure the surface smoothness, make the insulating plate not easy to adhere dirt, and have good arc resistance.
In the embodiment of the specification, the first insulating plate and the second insulating plate are preferably made of epoxy glass fiber cloth plates, so that the insulating quality of the insulating plates is ensured, and meanwhile, the insulating plates are light and convenient. In addition, the test of tracking resistance and arc resistance of the sample is carried out before the insulating plate is used, and the test can be used after the corresponding requirements of tracking resistance and arc resistance are met. In order to achieve the guiding of the electric charge and the stability of the support of the electric machine 4, in the embodiment of the present description, a first metal support 7 and a second metal support 8 made of metal materials are selected, and the first metal support 7 and the second metal support 8 may be made of steel.
The first insulating plate 1 and the second insulating plate 2 are both cylindrical plates, the cross section of the first insulating plate 1 and the cross section of the second insulating plate 2 are both circular, the central axis of the first insulating plate 1 and the central axis of the second insulating plate 2 are on the same axis, and the cross sectional area of the first insulating plate 1 is larger than that of the second insulating plate 2.
In the embodiments of the present disclosure, the column shape may be understood as a column shape in a broad sense, and refers to a spatial geometry enclosed by an upper bottom surface, a lower bottom surface and a side surface. And the cross section of the first insulating plate 1 means a section perpendicular to the central axis of the first insulating plate 1, and the cross section of the second insulating plate 2 means a section perpendicular to the central axis of the second insulating plate 2.
The first metal support 7 is provided with a first contact surface, and the first contact surface is in contact with one side of the insulation component; the second metal support 8 is provided with a second boss, the second boss is provided with a second contact surface, and the second metal support 8 is connected with the insulation assembly through the second contact surface.
The first contact surface and the second contact surface are both circular, and in the embodiment of the present specification, the circle center of the first contact surface and the circle center of the second contact surface are both aligned with the central axis of the insulating assembly, so that when the cross section of the first insulating plate 1 and the cross section of the second insulating plate 2 are both circular, the creepage distance from the first metal support 7 to the second metal support 8 is the same in any direction.
In some possible embodiments, as shown in fig. 2, the first insulating plate 1 and the second insulating plate 2 are both cylindrical plates. That is, the upper and lower bottom surfaces of the first insulating plate 1 are circular planes with equal size and parallel to each other, the side surface of the first insulating plate 1 is a cylindrical surface, and the central axis of the first insulating plate is perpendicular to the upper and lower bottom surfaces thereof. Similarly, the upper and lower bottom surfaces of the second insulating plate 2 are circular planes with the same size and parallel to each other, and the side surface of the second insulating plate 2 is a cylindrical surface perpendicular to the upper and lower bottom surfaces.
In some possible embodiments, as shown in fig. 3 to 5, the side surface of the first insulating plate 1 and/or the side surface of the second insulating plate 2 are provided with annular grooves or annular ribs; the annular groove and/or the annular convex rib can increase the surface area of the side surface of the first insulating plate 1 and/or the second insulating plate 2 on the premise of not increasing the thickness of the first insulating plate 1 and/or the second insulating plate 2, so that the requirement of increasing the creepage distance can be met under the condition that certain arrangement space is limited and the relative elongation between the first insulating plate and the second insulating plate cannot be increased continuously or the thickness of the first insulating plate/the second insulating plate is increased.
The plane of the annular groove and/or the annular convex rib needs to be perpendicular to the central axis of the first insulating plate and/or the central axis of the second insulating plate, so that the requirement that the creepage distance from the first metal support 7 to the second metal support 8 is equal everywhere is met.
In some possible embodiments, as shown in fig. 6 and 7, the surface of the first insulating plate 1 contacting the second insulating plate 2 is a first curved surface, the surface of the second insulating plate 2 contacting the first insulating plate 1 is a second curved surface, and the curvature of the first curved surface is adapted to the curvature of the second curved surface.
Compared with the case that the first insulating plate and the second insulating plate are both cylindrical (as shown in fig. 2), the first curved surface and the second curved surface can increase the surface area of the upper surface and the lower surface of the cylindrical plate, and can increase the area of the upper surface and the lower surface of the first insulating plate relative to the elongation of the second insulating plate, so that the surface area of the first insulating plate 1 and/or the second insulating plate 2 can be increased to increase the creepage distance without increasing the thickness of the first insulating plate 1 and/or the second insulating plate 2 and without increasing the elongation of the first insulating plate relative to the second insulating plate.
The curvature of the first curved surface is adapted to the curvature of the second curved surface, which means that the first insulating plate is kept in close contact with the second insulating plate, that is, no air gap is formed between the first insulating plate and the second insulating plate, so as to ensure that the surface of the whole formed by the first insulating plate and the second insulating plate can be electrically polarized.
It should be noted that, as shown in fig. 7, preferably, when the surface of the first insulating plate 1 contacting the second insulating plate 2 is a first curved surface, and the surface of the second insulating plate 2 contacting the first insulating plate 1 is a second curved surface, the first metal support is connected to the insulating assembly through the first insulating plate, and the side of the first insulating plate connected to the first metal support is a flat surface or a curved surface protruding upward relative to the first metal support; so that the extension part of the first insulating plate extending out of the second insulating plate can shield other insulating plates below the first insulating plate, and rainwater and impurities are prevented from being collected by the lower concave curved surface (or the lower concave part of the curved surface).
In some possible embodiments, the side surface of the first insulating plate 1 and/or the side surface of the second insulating plate 2 are provided with an annular groove or an annular rib; and the surface of the first insulating plate 1 contacted with the second insulating plate 2 is a first curved surface, the surface of the second insulating plate 2 contacted with the first insulating plate 1 is a second curved surface, and the curvature of the first curved surface is matched with that of the second curved surface.
In some preferred embodiments, the insulation assembly includes at least two first insulation plates 1, the second insulation plate 2 is disposed between two adjacent first insulation plates 1, and the first metal support 7 and the second metal support 8 are both connected to the first insulation plates 1. Since the creepage distance is mainly affected by the elongation of the first insulating plate relative to the second insulation and the amount of said elongation, the number of insulating plates can be reduced in the same creepage distance in the manner of connecting with the first metal mount and the second metal mount through the first insulating plate compared to the manner of connecting with the first metal mount and the second metal mount through the second insulating plate.
Preferably, the area of the first contact surface and the area of the second contact surface are both smaller than the area of the first insulating plate 1; the area of the first contact surface and the area of the second contact surface are both smaller than the area of the second insulating plate 2. So that the first metal support 7 can be stably arranged on the insulating assembly, the stability of motor connection is improved, and the creepage distance can be further improved.
As shown in fig. 1, the insulating connecting member includes an insulating bolt 6, a nut, and an insulating spacer 3, the insulating bolt 6 includes a bolt head and a screw rod, one end of the screw rod is connected to the bolt head, the other end of the screw rod sequentially passes through the first metal support 7, the insulating assembly, and the second metal support 8 and then is screwed to the nut, and the insulating spacer 3 is disposed between the nut and the second metal support 8 and between the bolt head and the first metal support 7. The insulating connecting piece can be provided with a plurality ofly, and a plurality of insulating connecting piece evenly distributed are in order to realize the stability of being connected between first metal support, insulating subassembly to the second metal support. In the embodiment of the present specification, the insulating bolt 6, including the bolt head and the screw rod, are made of insulating materials, and in cooperation with the bolt head and the screw rod, the nut is also made of insulating materials.
The insulation connecting device further comprises a connecting support 5, and the connecting support 5 is arranged on one side, far away from the second metal support 8, of the first metal support 7.
The second metal support 8 is provided with a mounting hole, and the mounting hole is matched with the connecting mechanism to connect the second metal support 8 with a mounting surface and then to be grounded.
The embodiment of the present specification further provides a motor, where the motor is connected to the insulating connection device provided in the above technical solution to achieve floating connection, specifically, the motor is connected to the first metal support 7 through a connection support 5, and the connection support 5 is made of a metal material to guide charges on a housing of the motor to the first metal support 7 through the connection support 5.
The insulating connection device provided by the embodiment of the specification is not limited by the size of an arrangement space, and can meet the ground insulating requirement of floating ground connection of a motor in various use scenes.
The principles and embodiments of this document are explained herein using specific examples, which are presented only to aid in understanding the methods and their core concepts; meanwhile, for the general technical personnel in the field, according to the idea of this document, there may be changes in the concrete implementation and the application scope, in summary, this description should not be understood as the limitation of this document.
Claims (10)
1. An insulation connecting device is characterized by comprising a first metal support (7), a second metal support (8) and an insulation assembly, wherein the insulation assembly is arranged between the first metal support (7) and the second metal support (8), the first metal support (7) is connected with a motor, and the second metal support (8) is connected with a mounting surface and then grounded; the insulation assembly comprises a plurality of insulation plates, and the first metal support (7), the insulation assembly and the second metal support (8) are detachably connected through insulation connectors.
2. An insulated joint according to claim 1, characterized in that said insulating assembly comprises at least one first insulating plate (1) and at least one second insulating plate (2), said first insulating plate (1) and said second insulating plate (2) being arranged alternately along the line from said first metal abutment (7) to said second metal abutment (8), the dimensions of said first insulating plate (1) being unequal to the dimensions of said second insulating plate (2).
3. An insulated joint arrangement according to claim 2, characterized in that the first insulating plate (1) and the second insulating plate (2) are both cylindrical plates, the cross-section of the first insulating plate (1) and the cross-section of the second insulating plate (2) are both circular, the central axis of the first insulating plate (1) and the central axis of the second insulating plate (2) are on the same axis, and the cross-sectional area of the first insulating plate (1) is larger than the cross-sectional area of the second insulating plate (2).
4. An insulated joint as claimed in claim 3, characterized in that the first insulating plate (1) and the second insulating plate (2) are both cylindrical plates.
5. An insulated joint as claimed in claim 3, characterized in that the side of the first insulating plate (1) and/or the side of the second insulating plate (2) is provided with an annular groove or an annular rib; and/or
The surface of the first insulating plate (1) contacted with the second insulating plate (2) is a first curved surface, the surface of the second insulating plate (2) contacted with the first insulating plate (1) is a second curved surface, and the curvature of the first curved surface is matched with that of the second curved surface.
6. An insulated joint according to claim 4 or 5, characterized in that the insulating assembly comprises at least two first insulating plates (1), between two adjacent first insulating plates (1) there is provided the second insulating plate (2), and the first metal holder (7) and the second metal holder (8) are both connected to the first insulating plates (1).
7. An insulated joint arrangement according to any of claims 4 or 5, characterized in that the first metal holder (7) is provided with a first contact surface, which first contact surface is in contact with one side of the insulating member; the second metal support (8) is provided with a second boss, the second boss (8) is provided with a second contact surface, and the second metal support (8) is connected with the insulating component through the second contact surface;
the area of the first contact surface and the area of the second contact surface are both smaller than the area of the first insulating plate (1); the area of the first contact surface and the area of the second contact surface are both smaller than the area of the second insulating plate (2).
8. An insulated connecting device according to claim 1, characterized in that the insulated connecting member comprises an insulated bolt (6), a nut and an insulated gasket (3), the insulated bolt (6) comprises a bolt head and a screw rod, one end of the screw rod is connected with the bolt head, the other end of the screw rod is in threaded connection with the nut after sequentially passing through the first metal support (7), the insulated assembly and the second metal support (8), and the insulated gasket (3) is arranged between the nut and the second metal support (8) and between the bolt head and the first metal support (7).
9. The insulated connecting device according to claim 1, characterized in that it further comprises a connecting support (5), said connecting support (5) being arranged on the side of the first metal support (7) remote from the second metal support (8).
10. An electric machine, characterized in that it is connected to an insulated connection device according to any one of claims 1 to 9, said electric machine being connected to said first metal support (7) by means of a connection support (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011629209.6A CN114696513A (en) | 2020-12-30 | 2020-12-30 | Insulating connecting device and motor using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011629209.6A CN114696513A (en) | 2020-12-30 | 2020-12-30 | Insulating connecting device and motor using same |
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| CN114696513A true CN114696513A (en) | 2022-07-01 |
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| CN202011629209.6A Pending CN114696513A (en) | 2020-12-30 | 2020-12-30 | Insulating connecting device and motor using same |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09131015A (en) * | 1995-11-06 | 1997-05-16 | Matsushita Electric Ind Co Ltd | Inverter-driven motor and mounting method for inverter-driven motor |
| JP2003343965A (en) * | 2002-05-23 | 2003-12-03 | Sanyo Electric Co Ltd | Constant-temperature vessel |
| CN203722393U (en) * | 2013-12-26 | 2014-07-16 | 四川德胜集团钒钛有限公司 | A direct current electric motor brush holder in insulation connection |
| CN204578258U (en) * | 2015-03-24 | 2015-08-19 | 松下家电研究开发（杭州）有限公司 | Electrical machine insulation pad and motor assembling structure thereof |
| CN205248950U (en) * | 2015-12-18 | 2016-05-18 | 深圳市鑫宝达电机有限公司 | Micro -machine is with insulating end cover |
| CN106936256A (en) * | 2015-12-31 | 2017-07-07 | 徐文清 | A kind of magneto insulated connecting device |
| CN108928225A (en) * | 2017-05-25 | 2018-12-04 | 丰田自动车株式会社 | Electric motor for vehicle storage device |
| CN210271966U (en) * | 2019-08-19 | 2020-04-07 | 天津宇博电气设备有限公司 | End plate bonding insulation structure |
| CN211405703U (en) * | 2020-01-22 | 2020-09-01 | 浙江富春江水电设备有限公司 | Bearing insulation structure |
| CN215186155U (en) * | 2020-12-30 | 2021-12-14 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Insulating connecting device and motor using same |
-
2020
- 2020-12-30 CN CN202011629209.6A patent/CN114696513A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09131015A (en) * | 1995-11-06 | 1997-05-16 | Matsushita Electric Ind Co Ltd | Inverter-driven motor and mounting method for inverter-driven motor |
| JP2003343965A (en) * | 2002-05-23 | 2003-12-03 | Sanyo Electric Co Ltd | Constant-temperature vessel |
| CN203722393U (en) * | 2013-12-26 | 2014-07-16 | 四川德胜集团钒钛有限公司 | A direct current electric motor brush holder in insulation connection |
| CN204578258U (en) * | 2015-03-24 | 2015-08-19 | 松下家电研究开发（杭州）有限公司 | Electrical machine insulation pad and motor assembling structure thereof |
| CN205248950U (en) * | 2015-12-18 | 2016-05-18 | 深圳市鑫宝达电机有限公司 | Micro -machine is with insulating end cover |
| CN106936256A (en) * | 2015-12-31 | 2017-07-07 | 徐文清 | A kind of magneto insulated connecting device |
| CN108928225A (en) * | 2017-05-25 | 2018-12-04 | 丰田自动车株式会社 | Electric motor for vehicle storage device |
| CN210271966U (en) * | 2019-08-19 | 2020-04-07 | 天津宇博电气设备有限公司 | End plate bonding insulation structure |
| CN211405703U (en) * | 2020-01-22 | 2020-09-01 | 浙江富春江水电设备有限公司 | Bearing insulation structure |
| CN215186155U (en) * | 2020-12-30 | 2021-12-14 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Insulating connecting device and motor using same |
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