CN107026596B - Energy-saving double-speed converter for motor - Google Patents
Energy-saving double-speed converter for motor Download PDFInfo
- Publication number
- CN107026596B CN107026596B CN201710155618.9A CN201710155618A CN107026596B CN 107026596 B CN107026596 B CN 107026596B CN 201710155618 A CN201710155618 A CN 201710155618A CN 107026596 B CN107026596 B CN 107026596B
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- contact
- moving
- actuating part
- fixed
- contacts
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- 230000003068 static effect Effects 0.000 claims description 9
- 238000013461 design Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/182—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays whereby the speed is regulated by using centrifucal devices, e.g. switch, resistor
Abstract
The invention provides an energy-saving double-speed converter of a motor, which comprises the following components: a stationary portion having a plurality of stationary contacts; and the moving contact is provided with a contact part, and the moving contact is contacted with two groups of corresponding and adjacent fixed contacts through the contact part at the same time and enables the two groups of fixed contacts to be conducted. The invention has the advantages of simple structure, reasonable design, convenient operation, low cost and high reliability.
Description
Technical Field
The invention relates to an energy-saving double-speed converter of a motor.
Background
The energy conservation and emission reduction are important work of the current industrial technology in China, in a plurality of production fields, the conveying flow of fluid conveying equipment (such as a circulating pump, a conveying fan and a draught fan of various pumps, fans and the like) can be increased or decreased along with the rise and fall of the ambient temperature, and the flow can be changed through the speed change of a motor, so that the near-pole double-speed transformation of the motor is derived (compared with the use of a frequency converter, the manufacturing cost is low, the transformation time is short, the performance is reliable, and no maintenance is required, so that the popularization is achieved).
In the prior art, the motor speed change adopts the change-over mode of connecting plate, because the quantity of connection is more, when the speed conversion, need carry out the re-match with the terminal, this kind of switching mode has following shortcoming: after the motor is used for a plurality of times, the reliability of the parts such as the binding post, the connecting plate and the like is gradually reduced due to deformation, bad phenomena such as bad contact, heating and the like can be caused, the heating can cause thermal expansion to deteriorate the contact, the winding can be seriously damaged, and the safe operation of the motor is influenced; the wiring is completed manually, and misconnection possibly caused by manual errors can cause loss; the wiring work is very inconvenient, and work load is big, and work efficiency reduces.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the motor energy-saving double-speed converter which has the advantages of reasonable structural design, convenient operation, low cost and high reliability.
The invention solves the problems by adopting the following technical scheme: the energy-saving double-speed converter of the motor is characterized by comprising: a stationary portion having a plurality of stationary contacts; and the moving contact is provided with a contact part, and the moving contact is contacted with two groups of corresponding and adjacent fixed contacts through the contact part at the same time and enables the two groups of fixed contacts to be conducted.
When the invention is used, the outgoing line or the binding post is connected with the fixed contacts, the moving contact can be contacted with different fixed contacts through the action of the action part, so that two groups of fixed contacts contacted with the moving contact are conducted at the same time.
The contact part comprises two groups of contact plates, a space for accommodating the end part of the fixed contact is formed between the two groups of contact plates, and the fixed contact is contacted with the contact plates. When the moving contact is matched with the fixed contact, the fixed contact is clamped by the two contact plates, so that the contact area of the contact plates and the fixed contact can be ensured, the conduction between the fixed contact and the moving contact is ensured, and the reliability is higher.
The contact part is provided with at least one group of elastic devices, and the elastic devices apply force to the contact plates and clamp the two groups of contact plates. Through the arrangement of the elastic device, when the two contact plates clamp the corresponding static contact, the elastic device applies force to the contact plates, so that clamping force is provided for the static contact, the contact reliability is ensured, and normal contact cannot be caused due to abrasion of the contact plates.
The actuating part is of a disc-shaped structure and rotates along an axis to actuate, the moving contact is arranged on the periphery of the actuating part, and the fixed contact is arranged on the radial outer side of the actuating part and corresponds to the moving contact. The actuating part rotates to actuate, which occupies small space and is convenient to operate.
The moving part of the invention moves along a track, and the static contact is arranged on the moving track of the moving part and corresponds to the moving contact. The device is suitable for the condition that the fixed contact or the moving contact is fewer, otherwise, the volume is overlarge.
The static part is of an annular structure and is coaxially arranged with the actuating part.
The axial direction of the actuating part is provided with a plurality of layers of moving contacts, and the stationary part is correspondingly provided with a plurality of layers of stationary contacts. The method is suitable for the condition of more wiring.
The invention also comprises a driving device for driving the actuating part to actuate, and the driving device is connected with the actuating part. The control of the actuating part is achieved by means of a drive device, which may take the form of a manual or an electric drive.
The invention further comprises a control cabinet, wherein the static part and the actuating part are arranged in the control cabinet, and at least one group of openable door bodies are arranged on the control cabinet. When the door body is opened, the control cabinet can be internally installed, detected and debugged, and the operation is further convenient.
The invention also comprises a positioning device which is connected with the actuating part and enables the actuating part to be switched between a locking position and a releasing position, wherein the actuating part is fixed by the positioning device in the locking position, and the positioning device is released from being fixed with the actuating part in the releasing position. When the switching of the actuating part is completed, the positioning device is used for positioning and fixing, so that the loss caused by the switching of the actuating part due to misoperation is prevented.
Compared with the prior art, the invention has the following advantages and effects: the invention has the advantages that compared with the prior art, the operation is more convenient, the cost is greatly reduced compared with the frequency converter, the matching mode of the moving contact and the fixed contact is adopted, the components cannot deform, and the stability is better.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic diagram of the structure of the motor energy-saving two-speed converter in embodiment 1.
Fig. 2 is a schematic diagram of the motor-saving two-speed converter-removed control cabinet of embodiment 1.
Fig. 3 is a schematic diagram showing the cooperation of the actuating portion and the stationary portion in embodiment 1.
Fig. 4 is an enlarged schematic view at a in fig. 2.
Fig. 5 is a schematic structural diagram of embodiment 3.
Fig. 6 is a schematic view of a motor lead-out terminal of embodiment 3.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Example 1.
Referring to fig. 1 to 4, the motor-power saving two-speed converter of the present embodiment includes a stationary portion 1 and an actuating portion 2.
The stationary part 1 in the embodiment is provided with a plurality of stationary contacts 11, and the stationary contacts 11 are connected with lead wires or binding posts; and an actuating part 2 which is actuated relative to the stationary part 1 and is provided with a moving contact 21 actuated with the actuating part 2, wherein the moving contact 21 is switched between corresponding fixed contacts 11 and completes the cooperation with different fixed contacts 11 when the actuating part 2 is actuated, the moving contact 21 is provided with a contact part 211, and the moving contact 21 is simultaneously contacted with two corresponding and adjacent fixed contacts 11 through the contact part 211 and conducts the two groups of fixed contacts 11.
When the movable contact is used, the outgoing line or the binding post is connected with the fixed contact 11, the movable contact 21 can be contacted with different fixed contacts 11 through the action of the action part 2, so that two groups of fixed contacts 11 contacted with the movable contact 21 are conducted simultaneously, and the corresponding binding post is connected through the binding line or the connecting sheet in the prior art.
The specific structure of the contact portion 211 of the present embodiment includes two sets of contact plates 2111, a space for accommodating the end portion of the stationary contact 11 is formed between the two sets of contact plates 2111, and the stationary contact 11 is in contact with the contact plates 2111. When the movable contact 21 is engaged with the fixed contact 11, the contact area between the contact plate 2111 and the fixed contact 11 can be ensured by sandwiching the fixed contact 11 between the two contact plates 2111, and conduction between the fixed contact 11 and the movable contact 21 can be ensured with higher reliability. The contact plate 211 may also take other contact forms, such as a single contact plate 2111 or a form directly abutting against the stationary contact 11, which are not illustrated here.
The contact portion 211 in this embodiment has at least one set of elastic means 2112, and the elastic means 2112 applies force to the contact plates 2111 and clamps the two sets of contact plates 2111. By arranging the elastic device 2112, when the two contact plates 2111 clamp the corresponding fixed contact 11, the elastic device 2112 applies force to the contact plates 2111, so that clamping force is provided for the fixed contact 11, the contact reliability is ensured, and normal contact cannot be caused due to abrasion of the contact plates 2111. Preferably, the elastic device 2112 has two sets, and applies force to the two sets of contact plates 2111 respectively, and the direction of the force is opposite.
The main body of the elastic device 2112 in this embodiment is a spring, and its specific implementation is a prior art, and will not be described herein.
The actuating portion 2 in this embodiment is of a disc-like structure and rotates along an axis to actuate, the moving contact 21 is disposed on the outer periphery of the actuating portion 2, and the stationary contact 11 is arranged radially outside the actuating portion 2 and corresponds to the moving contact 21. The actuating part 2 is operated in a rotary mode, occupies small space and is convenient to operate.
The stationary portion 1 in this embodiment has an annular structure and is disposed coaxially with the actuating portion 2.
The actuating portion 2 in this embodiment is provided with a plurality of layers of moving contacts 21 in the axial direction, and the stationary portion 1 is correspondingly provided with a plurality of layers of stationary contacts 11. The method is suitable for the condition of more wiring. The plural groups of the movable contacts 21 are arranged in a stacked manner in the axial direction with a certain pitch, as the case may be. The moving contacts 21 are uniformly arranged along the circumferential direction of the actuating portion 2.
The present embodiment further includes a driving device 3 for driving the operation portion 2, and the driving device 3 is connected to the operation portion 2. The control of the actuator 2 is achieved by the drive means 3, and the drive means 3 may take the form of a manual or an electric drive. The driving device 3 comprises a hand wheel 31, and the hand wheel 31 drives the actuating part 2 to rotate when rotating. The force reducing gear can be arranged, automatic positioning, gear display and the like are arranged, and the above implementation modes are all of the prior art and are not repeated here.
The embodiment further comprises a control cabinet 4, wherein the static part 1 and the actuating part 2 are arranged in the control cabinet 4, and at least one group of openable door bodies 41 are arranged on the control cabinet 4. When the door 41 is opened, the control cabinet 4 can be internally installed, detected and debugged, and the operation is further convenient. The control cabinet 4 in the embodiment is made of stainless steel, is bright and corrosion-resistant, and has a structure designed according to IP 44.
An electric heater is arranged in the control cabinet 4 in the embodiment, so that drying in the control cabinet 4 is ensured, and the insulator in the control cabinet 4 is prevented from dewing to reduce the insulating property. Other anti-condensation safety measures can also be provided for the control cabinet 4, and are not described in detail here.
The present embodiment further comprises a positioning device 5, the positioning device 5 being connected to the actuating portion 2 and switching the actuating portion 2 between a locked position, in which the actuating portion 2 is fixed by the positioning device 5, and a released position, in which the positioning device 5 is released from the fixing of the actuating portion 2. When the switching of the operation part 2 is completed, the positioning device 5 performs positioning and fixing to prevent the loss caused by the switching of the operation part 2 due to misoperation.
The motor energy-saving double-speed converter in the embodiment is suitable for the device for modifying double-speed conversion connection of stator windings in the energy-saving technology of an alternating-current high-voltage asynchronous motor, and is specially designed and manufactured according to the conversion requirements of different stator winding connection methods of the motor, and 27-54 connecting wires of the motor are different.
Example 2.
The basic structure of the motor energy-saving double-speed converter of this embodiment is the same as that of embodiment 1, except that the actuating portion 2 in this embodiment performs a moving action along a track, that is, a translation manner, and the stationary contact 11 is arranged on the moving track of the actuating portion 2 and corresponds to the moving contact 21. The device is suitable for the situation that the fixed contact 11 or the movable contact 21 is fewer, otherwise, the volume is overlarge. The specific translation structure is in the prior art, and can be accomplished by a guide rail or other forms, and will not be described herein.
Example 3.
As shown in fig. 5 and 6, in the two-speed motor speed-changing converter, the motor energy-saving two-speed converter in the embodiment is adopted, 4 layers of moving contacts 21 are arranged in the axial direction of an actuating part 2, 5 moving contacts 21 are uniformly distributed on each layer in the circumferential direction of the actuating part 2, 15 fixed contacts 11 and 27 are uniformly distributed on each layer in the circumferential direction of the actuating part 2, and a motor leading-out terminal is connected with a corresponding fixed contact 11 on a static part 1, and the specific connection mode is shown in fig. 5.
In fig. 5, the fixed contact 11 is correspondingly connected with the motor leading-out terminal in fig. 6, specifically, the fixed contact 11 with the same number is connected with the motor leading-out terminal.
The foregoing description of the invention is merely exemplary of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the scope of the invention as defined in the accompanying claims.
Claims (8)
1. An energy efficient two speed motor converter comprising:
a stationary portion having a plurality of stationary contacts;
the moving contact is provided with a contact part, and the moving contact is contacted with two groups of corresponding and adjacent fixed contacts through the contact part at the same time and enables the two groups of fixed contacts to be conducted; the contact part comprises two groups of contact plates, a space for accommodating the end part of the fixed contact is formed between the two groups of contact plates, and the fixed contact is contacted with the contact plates; the actuating part is of a disc-shaped structure and rotates along an axis to actuate, the moving contact is arranged on the periphery of the actuating part, and the fixed contact is arranged on the radial outer side of the actuating part and corresponds to the moving contact.
2. The motor energy saving two speed converter of claim 1 wherein: the contact part is provided with at least one group of elastic devices, and the elastic devices apply force to the contact plates and clamp the two groups of contact plates.
3. The motor energy saving two speed converter of claim 1 wherein: the moving part moves along a track, and the fixed contacts are arranged on the moving track of the moving part and correspond to the moving contacts.
4. The motor energy saving two speed converter of claim 1 wherein: the static part is of an annular structure and is coaxially arranged with the actuating part.
5. The motor energy saving two speed converter of claim 1 wherein: the axial direction of the actuating part is provided with a plurality of layers of moving contacts, and the stationary part is correspondingly provided with a plurality of layers of stationary contacts.
6. The motor energy efficient two speed converter of claim 5 wherein: the device also comprises a driving device for driving the actuating part to actuate, and the driving device is connected with the actuating part.
7. The motor energy saving two speed converter of claim 1 wherein: still include the switch board, static portion and actuation portion set up in the switch board, be provided with at least a set of openable door body on the switch board.
8. The motor energy efficient two speed converter of claim 7 wherein: the device also comprises a positioning device which is connected with the actuating part and enables the actuating part to switch between a locking position and a releasing position, wherein the actuating part is fixed by the positioning device in the locking position, and the positioning device is released from being fixed with the actuating part in the releasing position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155618.9A CN107026596B (en) | 2017-03-16 | 2017-03-16 | Energy-saving double-speed converter for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155618.9A CN107026596B (en) | 2017-03-16 | 2017-03-16 | Energy-saving double-speed converter for motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107026596A CN107026596A (en) | 2017-08-08 |
| CN107026596B true CN107026596B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710155618.9A Active CN107026596B (en) | 2017-03-16 | 2017-03-16 | Energy-saving double-speed converter for motor |
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| Country | Link |
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| CN (1) | CN107026596B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403114Y (en) * | 1999-09-25 | 2000-10-25 | 焦西明 | Change-over switch for shunt capacitor |
| CN2553493Y (en) * | 2002-06-21 | 2003-05-28 | 天水西星电气有限责任公司 | Electromagnetic position changeover switch |
| CN103560026A (en) * | 2013-10-21 | 2014-02-05 | 武汉长海电气科技开发有限公司 | Multi-pole power-driven disconnecting switch |
| WO2014032581A1 (en) * | 2012-08-30 | 2014-03-06 | 上海电科电器科技有限公司 | Transfer switch appliance |
| CN204088184U (en) * | 2014-09-16 | 2015-01-07 | 浙江欧迪森电气有限公司 | Safe double power supply converting switch |
| CN206585497U (en) * | 2017-03-16 | 2017-10-24 | 上海电机集团梅山电机有限公司 | Electrical machine energy-saving double speed converter |
-
2017
- 2017-03-16 CN CN201710155618.9A patent/CN107026596B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403114Y (en) * | 1999-09-25 | 2000-10-25 | 焦西明 | Change-over switch for shunt capacitor |
| CN2553493Y (en) * | 2002-06-21 | 2003-05-28 | 天水西星电气有限责任公司 | Electromagnetic position changeover switch |
| WO2014032581A1 (en) * | 2012-08-30 | 2014-03-06 | 上海电科电器科技有限公司 | Transfer switch appliance |
| CN103560026A (en) * | 2013-10-21 | 2014-02-05 | 武汉长海电气科技开发有限公司 | Multi-pole power-driven disconnecting switch |
| CN204088184U (en) * | 2014-09-16 | 2015-01-07 | 浙江欧迪森电气有限公司 | Safe double power supply converting switch |
| CN206585497U (en) * | 2017-03-16 | 2017-10-24 | 上海电机集团梅山电机有限公司 | Electrical machine energy-saving double speed converter |
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| Publication number | Publication date |
|---|---|
| CN107026596A (en) | 2017-08-08 |
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Effective date of registration: 20240218 Address after: Factory Building 1, No. 828 Zhenxing Road, Yucheng Town, Haiyan County, Jiaxing City, Zhejiang Province, 314308 Patentee after: Zhejiang Shangdian Electric Motor Co.,Ltd. Country or region after: China Address before: No. 11, Lane 1090, Hutai Branch Road, Baoshan District, Shanghai, 200436 Patentee before: SHANGHAI MOTOR GROUP MEISHAN MOTOR CO.,LTD. Country or region before: China |