CN109147513A - Simple type unipolar motor - Google Patents

Simple type unipolar motor Download PDF

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Publication number
CN109147513A
CN109147513A CN201811124118.XA CN201811124118A CN109147513A CN 109147513 A CN109147513 A CN 109147513A CN 201811124118 A CN201811124118 A CN 201811124118A CN 109147513 A CN109147513 A CN 109147513A
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CN
China
Prior art keywords
connecting column
support
slot
limit plate
simple type
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CN201811124118.XA
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Chinese (zh)
Inventor
肖飞
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Zhejiang Deqing Aite Electronic Technology Co Ltd
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Zhejiang Deqing Aite Electronic Technology Co Ltd
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Priority to CN201811124118.XA priority Critical patent/CN109147513A/en
Publication of CN109147513A publication Critical patent/CN109147513A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/18Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
    • G09B23/188Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Algebra (AREA)
  • Power Engineering (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention discloses a kind of simple type unipolar motors, including support of motor, support of motor includes bracket base and the support body above bracket base, support body includes the left support and right support being mutually oppositely arranged, a power capacity slot is constituted by height adjustment mechanism between left support and right support, connecting column and lower connecting column are respectively provided with above and below power capacity slot, the upper end of upper connecting column has the locating piece for fixing conducting wire one end, and the lower end of lower connecting column, which circumferentially rotates, is connected with the dynamic component of magnetic.The battery both ends that the present invention is located in power capacity slot are separately connected connecting column and lower connecting column, then one end of conducting wire is located in the wherein pole that battery is connected on upper connecting column by locating piece, user only need hand take the other end connect magnetic move can be carried out on component unipolar motor electromagnetic interaction experiment, have many advantages, such as it is compact-sized and solid, it is easy to operate and easy to use.

Description

Simple type unipolar motor
Technical field
The present invention relates to a kind of experimental facilities, particularly relate to a kind of simple type unipolar motor.
Background technique
High school physics are an important courses, and teacher can use test equipment to say student many physical knowledges Solution is so that student is with deep impression, and wherein electromagnetic interaction is an important knowledge point, and teacher would generally in teaching process It needs to illustrate to student the judgment method in the direction of Lorentz force, while on-the-spot demonstration is carried out to student using testing equipment.
In the prior art not specifically for the testing equipment of electromagnetic interaction test, high school physics teacher is usually needed The relevant bracket of self manufacture and corresponding circuit are wanted, it is interim to make although such mode is also able to achieve test requirements document The experimental facilities of work would generally be due to excessively simple and crude, bad collection, and cannot generally reuse, and increases the work of teacher of physics Amount.
Summary of the invention
Regarding the issue above, the present invention provides a kind of simple type unipolar motor.
In order to achieve the above objectives, present invention employs following technical proposals:
A kind of simple type unipolar motor, including support of motor, the support of motor include bracket base and are located at Support body above bracket base, the support body include the left support and right support being mutually oppositely arranged, the left support and A power capacity slot is constituted by height adjustment mechanism between right support, is had respectively above and below the power capacity slot There are upper connecting column and lower connecting column, the upper end of the upper connecting column has the locating piece for fixing conducting wire one end, the lower company The lower end for connecing column, which circumferentially rotates, is connected with the dynamic component of magnetic.
Through the above technical solutions, power capacity slot is used to place power supply, such as No. 5 batteries etc., it is located at power capacity slot Interior battery both ends are separately connected connecting column and lower connecting column, and then one end of conducting wire is located in upper connecting column by locating piece On to connect the wherein pole of battery, user only needs hand that the other end is taken to connect to move in magnetic and can carry out monopole electricity on component The electromagnetic interaction of motivation is tested.
In above-mentioned simple type unipolar motor, the height adjustment mechanism include setting left support and right support it Between upper limit plate and lower limiting board, the upper limit plate, lower limiting board, left support and right support, which surround, to be constituted the power supply and holds Receive slot, and the height tune that power capacity slot is carried out between left support and right support is arranged in the upper limit plate longitudinally-moving Section.
Through the above technical solutions, the electricity to different size battery can be carried out by the height of adjusting power capacity slot Magnetic interaction experiment.
In above-mentioned simple type unipolar motor, distinguish on the left support and right support positioned at the two sides of upper limit plate With longitudinal slot, upper limit plate two sides are outward extended with the extension item being adapted with the longitudinal slot, the extension item Across the outside of the longitudinal slot to left support or right support, and the extension item is located at one end on the outside of left support and right support With movable block.
In above-mentioned simple type unipolar motor, contact with each other on the inside of the longitudinal slot with extension item, and between the two Frictional force be greater than upper limit plate gravity so that upper limit plate only can just be moveed downward in the case where there is external force.
Through the above technical solutions, using longitudinal slot and extending the frictional force positioning upper limit plate itself having between item Position, user only needs that slightly firmly the height of power capacity slot can be reduced by pushing down on upper limit plate, or pushes up Limit plate is to improve the height of power capacity slot.
In above-mentioned simple type unipolar motor, all have through-hole on the upper limit plate and lower limiting board, it is described on Connecting column is threaded through the through hole of upper limit plate, and the lower connecting column is threaded through the through hole of lower limiting board, so that upper connecting column It can be contacted with positive pole or cathode in power capacity slot respectively with lower connecting column.
In above-mentioned simple type unipolar motor, the locating piece includes spring leaf, and one end of the spring leaf is fixed On upper limit plate, the other end of spring leaf has positioning surface, and the positioning surface is contacted with the upper surface of the connecting column;
The connecting column upper surface has the metallic channel placed for conducting wire, and the metallic channel extends to the side of connecting column Edge.
Through the above technical solutions, one end compacting of conducting wire to be realized to positioning using spring leaf, structure is simple and uses Convenient, wherein the depth of metallic channel is less than the diameter of conducting wire, so that the pressure of spring leaf can play suppression.
In above-mentioned simple type unipolar motor, it is sliding that the level that two are parallel to each other is offered on the bracket base Slot, the left support and right support pedestal all have two sliding blocks being located in two horizontal concrete chutes, so that the bracket Body can on the sliding slot horizontal anomalous movement.
In above-mentioned simple type unipolar motor, one end of the horizontal concrete chute extends to a side of bracket base Edge, the other end offer the limit hole along support body activity direction, have on the sliding block of the left support towards the side of limit hole There is the positive stop strip for being inserted into the limit hole.
In above-mentioned simple type unipolar motor, the slot two sides of the horizontal concrete chute have axially extending positioning Slot, the sliding block two sides of the right support have in locating slot and what can be moved axially and circumferentially rotate in locating slot determines Position column, so that support body can slide in horizontal concrete chute along horizontal concrete chute extending direction, and can be using positioning column as fulcrum The support body is rotated to be into horizontality from upright state;
The left support and right support have the longitudinal raised line being adapted with the horizontal concrete chute far from the side of positive stop strip, And when support body rotates to be horizontality, longitudinal raised line is embedded in the horizontal concrete chute.
Through the above technical solutions, support body steadily uprightly or can fall as needed, meets and use needs, together When convenient for storage.
In above-mentioned simple type unipolar motor, it includes metallic rod and the magnetic positioned at metallic rod lower end that the magnetic, which moves component, Iron, and the metallic rod circumferentially rotates connection or is fixedly connected on the lower end of lower connecting column, the magnet magnetic is in metallic rod Lower end.
The present invention has the advantages that having structure simple, using simple, storage is convenient, and experimental efficiency is high;One bracket energy Enough it is suitable for different size of battery, and battery altering is easy, and does not need to replace electricity to test different batteries Motivation bracket;Support of motor structure is simple, simultaneously because support body can uprightly with it is horizontal positioned, so storage is also more square Just.
Figure of description
Fig. 1 is the structural schematic diagram of simple type unipolar motor in the embodiment of the present invention one;
Fig. 2 is the enlarged drawing of part A in Fig. 1;
Fig. 3 is the structural schematic diagram one when the support body of simple type unipolar motor in the embodiment of the present invention two is upright;
Fig. 4 is the enlarged drawing of part B in Fig. 3;
Fig. 5 is the structural schematic diagram two when the support body of simple type unipolar motor in the embodiment of the present invention two is upright;
Fig. 6 is the structural schematic diagram of right support sliding block in the embodiment of the present invention two;
Fig. 7 is the enlarged drawing of C portion in Fig. 5;
Fig. 8 is the structural schematic diagram when support body of simple type unipolar motor in the embodiment of the present invention two is toppled over;
Fig. 9 is the enlarged drawing of the part D in Fig. 8.
Appended drawing reference: bracket base 1;Horizontal concrete chute 11;Limit hole 12;Locating slot 13;Support body 2;Left support 21;Right branch Frame 22;Power capacity slot 23;Upper connecting column 24;Sliding block 25;Positive stop strip 26;Longitudinal raised line 27;Positioning column 28;Locating piece 4;Spring Piece 41;Magnetic moves component 5;Metallic rod 51;Magnet 52;Upper limit plate 6;Longitudinal slot 61;Movable block 62;Extend item 63;Lower limiting board 7;Battery 8;Conducting wire 9.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As depicted in figs. 1 and 2, electronic present embodiment discloses a kind of simple type unipolar motor, including support of motor Machine support includes bracket base 1 and the support body 2 above bracket base 1, and the support body 2 includes mutually being oppositely arranged Left support 21 and right support 22 constitute a power capacity by height adjustment mechanism between the left support 21 and right support 22 Slot 23 is respectively provided with connecting column 24 and lower connecting column, the upper connecting column 24 above and below the power capacity slot 23 Upper end there is locating piece 4 for fixing conducting wire one end, the lower end of the lower connecting column, which circumferentially rotates, to be connected with magnetic and moves component 5.Power capacity slot 23 is used to place power supply, such as No. 5 batteries 8 etc., and 8 both ends of battery in power capacity slot 23 connect respectively Connecting column 24 and lower connecting column are connected, then one end of conducting wire 9 is located on connecting column 24 by locating piece 4 to connect battery A wherein pole, user only needs hand that the other end is taken to connect to move in magnetic and can carry out the electromagnetism of unipolar motor on component 5 Interaction experiment.
Certainly, those skilled in the art should appreciate that, in order to realize energization purpose, conductive column here is also metal material, It such as can be copper material etc..Also, it includes metallic rod 51 and the magnet 52 positioned at 51 lower end of metallic rod that magnetic, which moves component 5, and golden Belong to bar 51 to circumferentially rotate connection or be fixedly connected on the lower end of lower connecting column, 52 magnetic of magnet is in the lower end of metallic rod 51.Metal Bar 51 can be screw, and the lower section of metallic rod 51 has contact portion, and contact lower surface has contact surface, by the contact surface with Magnet 52 contacts with each other, and by magnetic attraction by 52 magnetic of magnet at contact surface.If metallic rod 51 is fixed on lower connecting column, When conducting wire both ends are contacted respectively on upper connecting column 24 and magnet 52, magnet 52 rotates under metallic rod 51;If metallic rod 51 It is movably connected on lower connecting column, when conducting wire both ends are contacted respectively on upper connecting column 24 and magnet 52, magnet 52 and metal Bar 51 rotates under lower connecting column together.Metallic rod 51 can be connected to the lower end of lower connecting column by way of mechanical force, or Person directly passes through the lower end that the magnetic attraction that magnet 52 passes over is connected to lower connecting column.
Specifically, height adjustment mechanism includes the upper limit plate 6 and lower limit being arranged between left support 21 and right support 22 Position plate 7, upper limit plate 6, lower limiting board 7, left support 21 and right support 22, which surround, constitutes the power capacity slot 23, and upper limit The height adjustment that power capacity slot 23 is carried out between left support 21 and right support 22 is arranged in 6 longitudinally-moving of plate, passes through adjusting The height of power capacity slot 23 carries out the experiment of the electromagnetic interaction to different size battery.
Further, the two sides for upper limit plate 6 being located on left support 21 and right support 22 are respectively provided with two longitudinal slots 61, 6 two sides of upper limit plate are outward extended with two extension items 63 being adapted with two longitudinal slots 61, and two extension items 63 are worn Longitudinal slot 61 is crossed to the outside of left support 21 or right support 22, and the extension item 63 of 6 two sides of upper limit plate is located at 21 He of left support The one end in 22 outside of right support has movable block 62, and two extension items 63 are integrated by movable block 62.
Further, 61 inside of longitudinal slot contacts with each other with item 63 is extended, and frictional force between the two is greater than upper limit The gravity of plate 6, so that upper limit plate 6 only can just be moveed downward in the case where there is external force.Preferably, longitudinal slot 61 weeks is inwardly Side is covered with sheet rubber, and sheet rubber is in contact with item 63 is extended, and increases the frictional force of the two by sheet rubber, frictional force size is big Such as extend the gravity of 63 component of item in upper limit plate 6 and its component, but is less than the common hand push power of general adult, so that on Limited block will not voluntarily glide in its natural state, while manually adjust 6 height of upper limit plate convenient for user, electric when needing to place When pond 8, hand is taken limit plate 6 and is pulled up, and then battery 8 is placed in power capacity slot 23, the anode of battery 8 or Then cathode contact pushes down on upper limit plate 6 in lower connecting column until another pole of battery is contacted with upper connecting column 24, lower company Connecing the position that column or upper connecting column 24 are contacted with anode can be set a groove so that positive terminal plugs, consequently facilitating will Battery is stablized in power capacity slot 23.
Here by using the position for the frictional force positioning upper limit plate 6 being itself had between longitudinal slot 61 and extension item 63 It sets, user only needs that slightly firmly the height of power capacity slot 23 can be reduced by pushing down on upper limit plate 6, or pushes up Limit plate 6 is to improve the height of power capacity slot 23.
Further, through-hole is all had on upper limit plate 6 and lower limiting board 7, upper connecting column 24 is threaded through upper limit plate 6 Through hole, the lower connecting column are threaded through the through hole of lower limiting board 7, so that upper connecting column 24 and lower connecting column can connect respectively It touches in the positive pole or cathode that are located in power capacity slot 23.
Specifically, locating piece 4 includes spring leaf 41, and one end of spring leaf 41 is fixed on upper limit plate 6, spring leaf 41 The other end has positioning surface, and positioning surface is contacted with the upper surface of connecting column;Preferably, connecting column upper surface has places for conducting wire Metallic channel, and metallic channel extends to the edge of connecting column.One end compacting of conducting wire is realized to positioning, knot using spring leaf 41 Structure is simple and easy to use, and wherein the depth of metallic channel is less than the diameter of conducting wire, so that the pressure of spring leaf 41 can play pressure Production is used.
Embodiment two
As seen in figures 3-6, the present embodiment is similar with embodiment one, the difference is that, on the bracket base 1 of the present embodiment Two horizontal concrete chutes being parallel to each other 11 are offered, left support 21 and 22 pedestal 1 of right support all have two and be located at two Sliding block 25 in horizontal concrete chute 11 so that support body 2 can in horizontal concrete chute 11 horizontal anomalous movement.And the one of horizontal concrete chute 11 End extends to the one side edge of bracket base 1, and the other end offers the limit hole 12 along 2 activity direction of support body, left support 21 Sliding block 25 on have towards the side of limit hole 12 and be inserted into the positive stop strip 26 of limit hole 12, when being tested, Support body 2 is moved to always at limit hole 12, and positive stop strip 26 is plugged in limit hole 12, positive stop strip 26 can be rubber Material is easy to insert or pull out in limit hole 12 in this way, and with limit hole 12 there is certain frictional force to make to prop up when insertion Frame body 2 can be limited steadily in current location, and the cross section of positive stop strip 26 can be rectangular configuration, or former round knot Structure, as long as being inserted into extracting limit hole 12 and there is certain frictional force with limit hole 12.
Further, as shown in Figures 6 to 9, the slot two sides of horizontal concrete chute 11 have axially extending locating slot 13, right 25 two sides of sliding block of bracket 22 have in locating slot 13 and what can be moved axially and circumferentially rotate in locating slot 13 determines Position column 28, so that support body 2 can slide in horizontal concrete chute 11 along 11 extending direction of horizontal concrete chute, and can be with positioning column The support body 2 is rotated to be horizontality from upright state for fulcrum by 28;Preferably, left support 21 and right support 22 are far from limit The side of position item 26 has the longitudinal raised line 27 being adapted with horizontal concrete chute 11, and when support body 2 rotates to be horizontality, indulges Be embedded in the horizontal concrete chute 11 to raised line 27, certainly longitudinal direction raised line 27 be it is cylindric with can in horizontal concrete chute 11 into Row circumferentially rotates.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although bracket base 1 is used more herein;Horizontal concrete chute 11;Limit hole 12;Locating slot 13;Support body 2;It is left Bracket 21;Right support 22;Power capacity slot 23;Upper connecting column 24;Sliding block 25;Positive stop strip 26;Longitudinal raised line 27;Positioning column 28; Locating piece 4;Spring leaf 41;Magnetic moves component 5;Metallic rod 51;Magnet 52;Upper limit plate 6;Longitudinal slot 61;Movable block 62;Extend item 63;Lower limiting board 7;Battery 8;The terms such as conducting wire 9, but it does not exclude the possibility of using other terms.Only using these terms Merely to being more convenient to describe and explain essence of the invention;Being construed as any additional limitation all is and this What spirit was disagreed.

Claims (10)

1. a kind of simple type unipolar motor, which is characterized in that including support of motor, the support of motor includes bracket bottom Seat (1) and the support body (2) being located above bracket base (1), the support body (2) includes the left support being mutually oppositely arranged (21) and right support (22), pass through height adjustment mechanism between the left support (21) and right support (22) and constitute a power supply and hold Receive slot (23), be respectively provided with connecting column (24) and lower connecting column above and below the power capacity slot (23), it is described on The upper end of connecting column (24) has the locating piece (4) for fixing conducting wire one end, and the lower end of the lower connecting column circumferentially rotates company It is connected to magnetic and moves component (5).
2. simple type unipolar motor according to claim 1, which is characterized in that the height adjustment mechanism includes setting Upper limit plate (6) and lower limiting board (7) between left support (21) and right support (22), the upper limit plate (6), lower limit Plate (7), left support (21) and right support (22), which surround, constitutes the power capacity slot (23), and the upper limit plate (6) is longitudinal It is movably arranged on the height adjustment that power capacity slot (23) are carried out between left support (21) and right support (22).
3. simple type unipolar motor according to claim 2, which is characterized in that the left support (21) and right support (22) two sides on positioned at upper limit plate (6) are respectively provided with longitudinal slot (61), and upper limit plate (6) two sides are outward extended with The extension item (63) being adapted with the longitudinal slot (61), the extension item (63) pass through the longitudinal slot (61) to left support (21) or the outside of right support (22), and extension item (63) is located at the tool of one end on the outside of left support (21) and right support (22) There are movable block (62).
4. simple type unipolar motor according to claim 3, which is characterized in that on the inside of the longitudinal slot (61) and extend Item (63) contacts with each other, and frictional force between the two is greater than the gravity of upper limit plate (6), so that upper limit plate (6) only exists It can just be moveed downward in the case where having external force.
5. simple type unipolar motor according to claim 2, which is characterized in that the upper limit plate (6) and lower limit Through-hole is all had on plate (7), the upper connecting column (24) is threaded through the through hole of upper limit plate (6), and the lower connecting column is worn In the through hole of lower limiting board (7), so that upper connecting column (24) and lower connecting column can be contacted with respectively positioned at power capacity slot (23) positive pole or cathode in.
6. simple type unipolar motor according to claim 5, which is characterized in that the locating piece (4) includes spring leaf (41), one end of the spring leaf (41) is fixed on upper limit plate (6), and the other end of spring leaf (41) has positioning surface, institute State the upper surface that positioning surface is contacted with the connecting column;
The connecting column upper surface has the metallic channel placed for conducting wire, and the metallic channel extends to the edge of connecting column.
7. simple type unipolar motor according to claim 2, which is characterized in that offered on the bracket base (1) Two horizontal concrete chutes (11) being parallel to each other, the left support (21) and right support (22) bottom all have two and are located at two Sliding block (25) in horizontal concrete chute (11) so that the support body (2) can on the sliding slot horizontal anomalous movement.
8. simple type unipolar motor according to claim 7, which is characterized in that prolong one end of the horizontal concrete chute (11) The one side edge of bracket base (1) is extended to, the other end offers the limit hole (12) along support body (2) activity direction, the left side There is on the sliding block (25) of bracket (21) towards the side of limit hole (12) positive stop strip for being inserted into the limit hole (12) (26)。
9. simple type unipolar motor according to claim 8, which is characterized in that the slot two sides of the horizontal concrete chute (11) Face has an axially extending locating slot (13), sliding block (25) two sides of the right support (22) have be located in locating slot (13) and The positioning column (28) that can be moved axially and circumferentially rotate in locating slot (13), so that support body (2) can be in horizontal concrete chute (11) in along horizontal concrete chute (11) extending direction slide, and can with positioning column (28) be fulcrum by the support body (2) from Upright state rotates to be horizontality;
The left support (21) and right support (22) have far from the side of positive stop strip (26) mutually fits with the horizontal concrete chute (11) The longitudinal raised line (27) answered, and when support body (2) rotates to be horizontality, longitudinal raised line (27) is embedded at the horizontal concrete chute (11) in.
10. simple type unipolar motor according to claim 1, which is characterized in that it includes metal that the magnetic, which moves component (5), Bar (51) and the magnet (52) for being located at metallic rod (51) lower end, and the metallic rod (51) circumferentially rotates connection or is fixedly connected on The lower end of lower connecting column, lower end of magnet (52) magnetic in metallic rod (51).
CN201811124118.XA 2018-09-26 2018-09-26 Simple type unipolar motor Pending CN109147513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811124118.XA CN109147513A (en) 2018-09-26 2018-09-26 Simple type unipolar motor

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Application Number Priority Date Filing Date Title
CN201811124118.XA CN109147513A (en) 2018-09-26 2018-09-26 Simple type unipolar motor

Publications (1)

Publication Number Publication Date
CN109147513A true CN109147513A (en) 2019-01-04

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM475666U (en) * 2013-01-16 2014-04-01 Chien-Jung Su Electromagnetic experiment module frame set
CN206202952U (en) * 2016-11-28 2017-05-31 北京新能源汽车股份有限公司 Battery storage support
CN207520088U (en) * 2017-05-26 2018-06-22 小狗电器互联网科技(北京)股份有限公司 Hand-held cleaners
CN209804089U (en) * 2018-09-26 2019-12-17 浙江德清爱特电子科技有限公司 Simple single-pole motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM475666U (en) * 2013-01-16 2014-04-01 Chien-Jung Su Electromagnetic experiment module frame set
CN206202952U (en) * 2016-11-28 2017-05-31 北京新能源汽车股份有限公司 Battery storage support
CN207520088U (en) * 2017-05-26 2018-06-22 小狗电器互联网科技(北京)股份有限公司 Hand-held cleaners
CN209804089U (en) * 2018-09-26 2019-12-17 浙江德清爱特电子科技有限公司 Simple single-pole motor

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