CN101958673A - DC motor reversing controller - Google Patents
DC motor reversing controller Download PDFInfo
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- CN101958673A CN101958673A CN 201010277126 CN201010277126A CN101958673A CN 101958673 A CN101958673 A CN 101958673A CN 201010277126 CN201010277126 CN 201010277126 CN 201010277126 A CN201010277126 A CN 201010277126A CN 101958673 A CN101958673 A CN 101958673A
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- touching plate
- fixed touching
- gear shift
- joint pin
- moving contact
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Abstract
The invention discloses a DC motor reversing controller, which comprises a box, wherein the box is provided with first and second input binding posts, first and second output binding posts, and first, second and third gearshifting connecting posts; the first input binding post is connected with a first fixed contact plate; the second input binding post is connected with a second fixed contact plate; the first input binding post is connected with the first gearshifting connecting post through a conductor connecting piece; the first output binding post is connected with a third fixed contact plate; the second output binding post is connected with a fourth fixed contact plate; the DC motor reversing controller also comprises first and second moving contacts which are respectively connected with a moving plate and sleeved with an magnet coil; the negative pole of the magnet coil is connected with the second input binding post, while the positive pole is respectively connected with the gearshifting connecting posts; and the lower ends of the first and second moving contacts are respectively provided with a support spring. The DC motor reversing controller has the advantages of stable work, simple structure and high conversion efficiency.
Description
Technical field
The present invention relates to a kind of electric current reversing arrangement, especially a kind of direct current machine direction selecting controller that is applicable to electric winch, electri forklift, electric automobile etc.
Background technology
Adopt single-phase series excitation type motor in the normally used electric tool mostly, as electric winch, the employed motor of electri forklift, the characteristics of this motor are to remain fixedly the time to same direction rotation when the sense of current, but in the process of using these electric tools, usually need motor to be rotated in the forward, can also backward rotation, therefore be specifically designed to the inverter that changes motor input current direction and arise at the historic moment.
Present employed inverter, mostly be to adopt two high-current relays are merged to realize, as application number is that 200320100742.9 Chinese patent discloses " a kind of big electric current commutation control integrated relay ", it just comprises, reverse hold-in winding, just, reverse pull-in winding, the aluminium alloy base, loam cake, magnetic circuit, compound fixed contact, compound moving contact, the contact pad, insulator cap, diode and jump ring etc., forward hold-in winding wherein, the forward pull-in winding, reverse hold-in winding, oppositely pull-in winding and diode constitute two magnetic circuits that work alone, two pairs of normally-open normally-close composite contact positions are fixed by loam cake and insulator cap, the two pairs of pull-in windings and hold-in winding can the automatic short-circuit conversions, thereby realize the conversion of big electric current.This throw over relay is in when work, is that the relay by two merging forms the current direction that opposite magnetic circuit realizes controlling output, reaches the purpose that makes the motor break-in.But, this power pack but has the following disadvantages: 1, job stability is relatively poor, owing to be to adopt the relay assembly unit of two routines to synthesize, and be to adopt short circuit to realize conversion between the coil, therefore when short circuit, be easy to burn out coil, cause device damage; 2, structure is too complicated, and parts are too many, generally all needs the commutation smoothly of four relays, and the assembling difficulty is very big, and the installation of each parts performance that all may influence product not in place; 3, energy consumption is big, and conversion efficiency is lower, because the resistance value of relay inside is bigger, it is more itself to generate heat when therefore working, and the loss of electric energy is bigger, and this has also influenced the output of electric current.
Summary of the invention
At above-mentioned deficiency of the prior art, main purpose of the present invention is to solve and is used at present motor commutate device in use less stable, the problem that breaks down easily of control, and good stability when a kind of work is provided, structure is comparatively simple and the less direct current machine direction selecting controller of energy consumption.Direction selecting controller of the present invention is mainly used in low-voltage dc power supply and is connected, and can bear bigger output current forward or backwards and give motor, and motor is realized forward or reverse according to the sense of current drive instrument of input.
Technical scheme of the present invention: direct current machine direction selecting controller, comprise box body, it is characterized in that, on box body, be provided be used to connect the power supply positive and negative electrode first lead-in clamp with second lead-in clamp, be used to be connected first output wiring terminal and second output wiring terminal and the first gear shift joint pin, the second gear shift joint pin and the 3rd gear shift joint pin of load positive and negative electrode; On first lead-in clamp, be connected with first fixed touching plate, on second lead-in clamp, be connected with second fixed touching plate, described first fixed touching plate and second fixed touching plate are parallel to each other and upper and lower distribution, and described first lead-in clamp also links to each other with the first gear shift joint pin by the conductor brace; Be connected with the 3rd fixed touching plate on described first output wiring terminal, be connected with the 4th fixed touching plate on second output wiring terminal, described the 3rd fixed touching plate and the 4th fixed touching plate respectively go up contact block by one and a following contact block constitutes;
In box body, also be provided with first moving contact and second moving contact, on first moving contact, be connected with first movable contact spring, on second moving contact, be connected with second movable contact spring, one end of described first movable contact spring and second movable contact spring all is limited between first fixed touching plate and second fixed touching plate, the other end of first movable contact spring is limited between the last contact block and following contact block of the 4th fixed touching plate, and the other end of second movable contact spring is limited between the last contact block and following contact block of the 3rd fixed touching plate;
On first moving contact and second moving contact, also respectively be with a solenoid, the negative pole of described two solenoids all is connected on second lead-in clamp, the positive pole of described one of them solenoid links to each other with the second gear shift joint pin, and the positive pole of another solenoid is connected on the 3rd gear shift joint pin; Between described first moving contact and second moving contact and each self-corresponding solenoid, also respectively be provided with a support spring;
When the first gear shift joint pin is communicated with the second gear shift joint pin or the 3rd gear shift joint pin, the solenoid corresponding with second gear shift joint pin that is communicated with or the 3rd gear shift joint pin produces electromagnetic force and the corresponding moving contact of pulling, the two ends that make movable contact spring on the described moving contact respectively with corresponding fixed touching plate contact, and then the power supply positive and negative electrode is communicated with respectively with the load positive and negative electrode.
Further, described first fixed touching plate is positioned at the below of second fixed touching plate, the following contact block of described the 3rd fixed touching plate is all concordant with first fixed touching plate with the following contact block of the 4th fixed touching plate, and the last contact block of the 3rd fixed touching plate is all concordant with second fixed touching plate with the last contact block of the 4th fixed touching plate.Here the upper and lower contact of the 3rd fixed touching plate and the 4th fixed touching plate is set to concordant purpose with first fixed touching plate and second fixed touching plate respectively and is, make first movable contact spring and second movable contact spring after action, the two ends of movable contact spring all can keep excellent contact with corresponding fixed touching plate, the phenomenon that prevents loose contact takes place, thereby reduces the generation of soft fault.
With respect to prior art, the present invention has the following advantages:
1, switching current direction time stability better, because two solenoids all are the conversion regimes that directly adopt open circuit or open circuit, can effectively avoid coil short like this, the equipment of preventing burns out, and each fixed touching plate and movable contact spring in the controller contact well but can not produce mutual interference mutually, the stability when this also helps improving equipment work;
2, simple in structure, easy to assembly, inner components of the present invention obviously reduces, and this not only helps assembling, has reduced simultaneously because some parts are installed the risk that causes equipment normally not use not in place;
3, conversion efficiency height, energy consumption is little, because power supply is low-tension supply, and that output current requires is very big, and rated operational current is 100A usually, when load is big, therefore electric current can reach 160A, the resistance in the controller is had relatively high expectations, and all adopts after treatment copper sheet as brace among the present invention, thereby make the energy consumption in the entire controller reduce, thereby improved conversion efficiency.
Description of drawings
Fig. 1 is the vertical view of direction selecting controller of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the upward view of upper cartridge body among Fig. 1;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is the B-B cutaway view of Fig. 3;
Fig. 6 is the vertical view of the lower box body of direction selecting controller of the present invention;
Fig. 7 is the A-A cutaway view of Fig. 7.
Among the figure, 1-box body, 11-upper cartridge body, 12-lower box body, 21-the first lead-in clamp, 22-the second lead-in clamp, 31-the first output wiring terminal, 32-the second output wiring terminal, 41-the first gear shift joint pin, 42-the second gear shift joint pin, 43-the three gear shift joint pin, 51-the first fixed touching plate, 52-the second fixed touching plate, 53-the three fixed touching plate, 54-the four fixed touching plate, 6-conductor brace, 71-the first moving contact, 72-the second moving contact, 81-the first movable contact spring, 82-the second movable contact spring, 9-solenoid, 10-coil rack, 13-support spring, 14-power spring, 15-step, 16-sealing strip, 17-upper left contact block, 18-lower-left contact block, 19-upper right contact block, 20-bottom right contact block.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the direct current machine direction selecting controller comprises box body 1, and described box body 1 is made up of upper cartridge body 11 and lower box body 12, and upper cartridge body 11 and lower box body 12 are connected by bolt.Inner side edge edge at upper cartridge body 11 is provided with sealing strip 16, on upper cartridge body 11, be provided be used to connect positive source first lead-in clamp 21 with second lead-in clamp 22 that is connected power cathode, be used to connect first output wiring terminal 31 and second output wiring terminal 32 that is connected the load negative pole and the first gear shift joint pin 41 of load positive pole, on lower box body 12, be provided with second separate gear shift joint pin 42 and the 3rd gear shift joint pin 43, during installation, the second gear shift joint pin 42 and the 3rd gear shift joint pin 43 pass upper cartridge body 11 by the connecting hole on the upper cartridge body 11 respectively.On first lead-in clamp 21, be connected with first fixed touching plate 51, on second lead-in clamp 22, be connected with second fixed touching plate 52, described first fixed touching plate 51 and second fixed touching plate 52 all are provided with in the horizontal direction, first fixed touching plate 51 is positioned at the below of second fixed touching plate 52 and is parallel to each other, and described first lead-in clamp 21 also links to each other with the first gear shift joint pin 41 by conductor brace 6; On described first output wiring terminal 31, be connected with the 3rd fixed touching plate 53, on second output wiring terminal 32, be connected with the 4th fixed touching plate 54, each goes up contact block by one and a following contact block constitutes described the 3rd fixed touching plate 53 and the 4th fixed touching plate 54, and the last contact block of the 3rd fixed touching plate 53 and the 4th fixed touching plate 54 and following contact block are respectively that asymmetric U type spare by an integral body constitutes.The lower-left contact block 18 of the bottom right contact block 20 of described the 3rd fixed touching plate 53 and the 4th fixed touching plate 54 is all concordant with first fixed touching plate 51, and the upper left contact block 17 of the upper right contact block 19 of the 3rd fixed touching plate 53 and the 4th fixed touching plate 54 is all concordant with second fixed touching plate 52.
Referring to Fig. 2, Fig. 3 and Fig. 4, also be provided with first moving contact 71 and second moving contact 72 in the controller of the present invention, on first moving contact 71, be connected with first movable contact spring 81, on second moving contact 72, be connected with second movable contact spring 82, one end of described first movable contact spring 81 and second movable contact spring 82 all is limited between first fixed touching plate 51 and second fixed touching plate 52, the other end of first movable contact spring 81 is limited between the upper left contact block 17 and lower-left contact block 18 of the 4th fixed touching plate 54, and the other end of second movable contact spring 82 is limited between the upper right contact block 19 and bottom right contact block 20 of the 3rd fixed touching plate 53; Like this, first moving contact 71 and second moving contact 72 be owing to be subjected to the restriction of movable contact spring separately respectively, in the upper and lower restriction that also will be subjected to fixed touching plate when mobile.
Referring to Fig. 2, Fig. 5, Fig. 6 and Fig. 7, lower end at described first moving contact 71 and second moving contact 72 also respectively is with a solenoid 9, described two solenoids all are fixed in the lower box body 12 by the coil rack of being made by metal shell 10, the negative pole of described two solenoids all is connected on second lead-in clamp 22 by the power spring 14 that is fixed in the lower box body 12, the positive pole of one of them solenoid links to each other with the second gear shift joint pin 42, and the positive pole of another solenoid is connected on the 3rd gear shift joint pin 43.Lower end at first moving contact 71 and second moving contact 72 also respectively is with a support spring 13, on first moving contact 71 and second moving contact 72, also respectively be provided with one and be used for the step 15 that contacts with support spring 13, described first moving contact 71 and second moving contact 72 step by separately respectively are pressed into the support spring of correspondence in the circle hole of solenoid, described two steps also respectively with the coil rack matched in clearance in the corresponding solenoid outside, the other end of two support springs keeps appropriate gap with corresponding coil rack bottom respectively.
Operation principle of the present invention:
Before the use, with the positive pole of power supply connect first lead-in clamp 21, negative pole connects second lead-in clamp 22, with the positive pole of load connect first output wiring terminal 31, negative pole connects second output wiring terminal 32.Employed power supply is a DC power supply among the present invention, turn on the power switch after carefully connecting the wire, at this moment, because the support spring of first moving contact 71 and second moving contact, 72 lower ends all is in compressive state, therefore two support springs can apply elastic force upwards to first moving contact 71 and second moving contact 72 respectively, thereby first movable contact spring 81 and second movable contact spring 82 are all promoted lofty perch, and promptly an end of first movable contact spring 81 contacts with second fixed touching plate 52, and the other end contacts with the last contact block of the 4th fixed touching plate 54; Same, an end of second movable contact spring 82 contacts with second fixed touching plate 52, and the other end contacts with the last contact block of the 3rd fixed touching plate 53.Such first output wiring terminal 31 and second output wiring terminal 32 are connected by first movable contact spring 81 and second movable contact spring 82, so the positive and negative electrode of controller output end is by short circuit, the output of controller no current.
During use, the staff is connected the first gear shift joint pin 41 with the second gear shift joint pin 42.Because the first gear shift joint pin 41 is connected with positive source by first lead-in clamp 21, the positive pole that therefore is connected that solenoid on the second gear shift joint pin 42 is also connected with positive source; The back remains on-state with power cathode on second lead-in clamp 22 because the negative pole of two solenoids all is connected to again, therefore this solenoid that links to each other with the second gear shift joint pin 42 is all connected and will be produced electromagnetic force owing to positive and negative electrode, first moving contact 71 or second moving contact 72 of correspondence are pulled down, make corresponding first movable contact spring 81 or second movable contact spring 82 be positioned at low spot, promptly an end of first movable contact spring 81 contacts with first fixed touching plate 51, and the other end contacts with the following contact block of the 4th fixed touching plate 54; Perhaps, an end of second movable contact spring 82 contacts with first fixed touching plate 51, and the other end contacts with the following contact block of the 3rd fixed touching plate 53.Like this, just make in the win movable contact spring 81 and second movable contact spring 82, movable contact spring and positive source are connected, another movable contact spring and power cathode connection.Again owing to first movable contact spring 81 keeps being communicated with second output wiring terminal 32 by the 4th fixed touching plate 54, second movable contact spring 82 keeps being communicated with first output wiring terminal 31 by the 3rd fixed touching plate 53, therefore first output wiring terminal 31 and second output wiring terminal 32 are also connected with the positive and negative electrode of power supply respectively, and at this moment the output of controller has electric current output.
When needs commutated to load motor, the staff disconnected the first gear shift joint pin 41 and the second gear shift joint pin 42, the first gear shift joint pin 41 is connected with the 3rd gear shift joint pin 43 again.At this moment, the positive and negative electrode of the solenoid that is connected with the 3rd gear shift joint pin 43 is communicated with the positive and negative electrode of power supply respectively, and it will produce electromagnetic force and the movable contact spring of correspondence be pulled down to low level itself and positive source are connected; And another solenoid that is connected with the second gear shift joint pin 42 will no longer include the electromagnetic force generation, and that movable contact spring of its correspondence will be got back to a high position under the support spring effect, and will be communicated with the negative pole of power supply.At this moment, first output wiring terminal 31 will exchange with second output wiring terminal, the 32 corresponding power supply positive and negative electrodes that are connected, so just make the positive and negative electrode of controller output end also exchange, i.e. the positive and negative electrode reversal connection of load motor, thus realized the counter-rotating of control motor.
Though the present invention is provided with two solenoids, but when work, only allow one of them solenoid connection work all the time, such two pairing moving contacts of solenoid will produce different actions respectively when work, therefore the output end binding post of the controller that links to each other with described two moving contacts just links to each other with the positive and negative electrode of power supply respectively.When needs commutate to motor, only need to change the operating state of two solenoids, promptly a solenoid of original connection is disconnected, original another solenoid that disconnects is connected, just can realize the commutation of controller output end positive and negative electrode.The novel structure of controller of the present invention, simple to operate and good operating stability, be specially adapted to the commutation control of direct current machine, certainly, the present invention also is not limited only to control of DC, during every need the commutation, all can use controller of the present invention to electric current.
Claims (6)
1. direct current machine direction selecting controller, comprise box body (1), it is characterized in that, on box body (1), be provided be used to connect the power supply positive and negative electrode first lead-in clamp (21) with second lead-in clamp (22), be used to be connected first output wiring terminal (31) and second output wiring terminal (32) and the first gear shift joint pin (41), the second gear shift joint pin (42) and the 3rd gear shift joint pin (43) of load positive and negative electrode; On first lead-in clamp (21), be connected with first fixed touching plate (51), on second lead-in clamp (22), be connected with second fixed touching plate (52), described first fixed touching plate (51) and the upper and lower distribution of second fixed touching plate (52), described first lead-in clamp (21) also link to each other with the first gear shift joint pin (41) by conductor brace (6); On described first output wiring terminal (31), be connected with the 3rd fixed touching plate (53), be connected with the 4th fixed touching plate (54) on second output wiring terminal (32), described the 3rd fixed touching plate (53) and the 4th fixed touching plate (54) respectively go up contact block by one and a following contact block constitutes;
In box body (1), also be provided with first moving contact (71) and second moving contact (72), on first moving contact (71), be connected with first movable contact spring (81), on second moving contact (72), be connected with second movable contact spring (82), one end of described first movable contact spring (81) and second movable contact spring (82) all is limited between first fixed touching plate (51) and second fixed touching plate (52), the other end of first movable contact spring (81) is limited between the upper left contact block (17) and lower-left contact block (18) of the 4th fixed touching plate (54), and the other end of second movable contact spring (82) is limited between the upper right contact block (19) and bottom right contact block (20) of the 3rd fixed touching plate (53);
On first moving contact (71) and second moving contact (72), also respectively be with a solenoid (9), the negative pole of described two solenoids all is connected on second lead-in clamp (22), the positive pole of described one of them solenoid links to each other with the second gear shift joint pin (42), and the positive pole of another solenoid is connected on the 3rd gear shift joint pin (43); Between described first moving contact (71) and second moving contact (72) and each self-corresponding solenoid, also respectively be provided with a support spring (13);
When the first gear shift joint pin (41) and the second gear shift joint pin (42) or the 3rd gear shift joint pin (43) when being communicated with, the solenoid (9) corresponding with second gear shift joint pin (42) that is communicated with or the 3rd gear shift joint pin (43) produces electromagnetic force and the corresponding moving contact of pulling, the two ends that make movable contact spring on the described moving contact respectively with corresponding fixed touching plate contact, and then the power supply positive and negative electrode is communicated with respectively with the load positive and negative electrode.
2. direct current machine direction selecting controller according to claim 1, it is characterized in that, described first fixed touching plate (51) is positioned at the below of second fixed touching plate (52), the bottom right contact block (20) of described the 3rd fixed touching plate (53) is all concordant with first fixed touching plate (51) with the lower-left contact block (18) of the 4th fixed touching plate (54), and the upper right contact block (19) of the 3rd fixed touching plate (53) is all concordant with second fixed touching plate (52) with the upper left contact block (17) of the 4th fixed touching plate (54).
3. direct current machine direction selecting controller according to claim 1, it is characterized in that, also be connected with a power spring (14) in second lead-in clamp (22) lower end, the negative pole of described two solenoids all is connected with second lead-in clamp (22) by power spring (14).
4. direct current machine direction selecting controller according to claim 1, it is characterized in that, respectively be provided with a step (15) on first moving contact (71) and second moving contact (72), described first moving contact (71) and second moving contact (72) compress by the support spring (13) of step (15) with correspondence respectively.
5. direct current machine direction selecting controller according to claim 1 is characterized in that, also is provided with sealing strip (16) in box body (1).
6. according to claim 1 or 3 described direct current machine direction selecting controllers, it is characterized in that described two solenoids all are fixed in the box body (1) by coil rack (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102771265A CN101958673B (en) | 2010-09-09 | 2010-09-09 | DC motor reversing controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102771265A CN101958673B (en) | 2010-09-09 | 2010-09-09 | DC motor reversing controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101958673A true CN101958673A (en) | 2011-01-26 |
| CN101958673B CN101958673B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102771265A Expired - Fee Related CN101958673B (en) | 2010-09-09 | 2010-09-09 | DC motor reversing controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN101958673B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001014991A (en) * | 1999-06-30 | 2001-01-19 | Nec Corp | Electromagnetic relay, the electromagnetic relay and circuit board, and circuit board |
| CN2512103Y (en) * | 2001-12-06 | 2002-09-18 | 乐清市八达真空电器开关厂 | Vacuum separated reversing switch |
| US20040112731A1 (en) * | 2002-10-11 | 2004-06-17 | Keiichi Shimizu | Switch device |
| CN2817032Y (en) * | 2005-07-15 | 2006-09-13 | 储云跃 | Current commutator for electric tools |
| CN201742353U (en) * | 2010-09-09 | 2011-02-09 | 重庆工学院七一仪表厂 | Motor reversing controller device |
-
2010
- 2010-09-09 CN CN2010102771265A patent/CN101958673B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001014991A (en) * | 1999-06-30 | 2001-01-19 | Nec Corp | Electromagnetic relay, the electromagnetic relay and circuit board, and circuit board |
| CN2512103Y (en) * | 2001-12-06 | 2002-09-18 | 乐清市八达真空电器开关厂 | Vacuum separated reversing switch |
| US20040112731A1 (en) * | 2002-10-11 | 2004-06-17 | Keiichi Shimizu | Switch device |
| CN2817032Y (en) * | 2005-07-15 | 2006-09-13 | 储云跃 | Current commutator for electric tools |
| CN201742353U (en) * | 2010-09-09 | 2011-02-09 | 重庆工学院七一仪表厂 | Motor reversing controller device |
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| Publication number | Publication date |
|---|---|
| CN101958673B (en) | 2012-07-04 |
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