CN201222557Y - Portable commutation plug - Google Patents
Portable commutation plug Download PDFInfo
- Publication number
- CN201222557Y CN201222557Y CNU2008201119821U CN200820111982U CN201222557Y CN 201222557 Y CN201222557 Y CN 201222557Y CN U2008201119821 U CNU2008201119821 U CN U2008201119821U CN 200820111982 U CN200820111982 U CN 200820111982U CN 201222557 Y CN201222557 Y CN 201222557Y
- Authority
- CN
- China
- Prior art keywords
- movable contact
- phase
- commutation
- plug
- contact pieces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003068 static effect Effects 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000017105 transposition Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The utility model relates to a tri-polar belt earth three phase power supply plug which can easily change phases. The tri-polar belt earth three phase power supply plug takes an existing plug form as basis, a group of sliding contact phase-change mechanisms are added in an insulating outer shell, the mechanisms are mainly composed of three metal movable contact pieces and two static contact pieces. The movable contact pieces are paved on the back of a phase-change button and are arranged into a plane with a * shape, two movable contact pieces on the edges are connected into a whole, the movable contact piece in the middle is independent, a flexible line conductor is extended from each movable contact piece and is connected with two phase wire electrodes, one ends of the two static contact pieces are fixed on two binding posts, the other ends are always close contacted with a middle block and a block on the edge, and a residual phase wire electrode and an earth electrode are directly connected with other two binding posts. Three live conductors and an earth wire of an appliance power cord are respectively inserted into four corresponding binding posts. The tri-polar belt earth three phase power supply plug has the function that after a power supply is switched on, when the motor operation direction is opposite to the practical direction, coordinated transposition between the movable contact pieces and static contact pieces can be realized only through pulling down a plug and dialing the phase-change button, and the purpose of changing phases easily can be achieved.
Description
Affiliated technical field
The utility model relates to a kind of appliances power source plug, particularly a kind of three utmost point band ground connection three-phase alternating-current supply plugs that can fast conversion phase place.
Technical background:
According to China ministry standard GB1003-80 3-phase plug socket pattern, at present, known GB three-phase alternating-current supply plug generally is meant three utmost point band ground pins.Be mainly used on the small-power electrical equipment such as industrial electric fan, immersible pump, Move tool.Existing plug mainly is made up of insulation crust and four metal electrodes, and structure is single, does not have other function except energized.But, when the input of the output of power supply or electrical equipment lacks the phase sequence sign, after institute's plug energising, when finding that motor rotation direction is opposite with the real work direction, can only take plug apart,, perhaps install the commutation device in the line additional two phase firewires changing-over again wherein, just can reach the purpose of motor steering, have very big inconvenience in the use.
Summary of the invention:
In order effectively to solve the deficiency of function singleness in the existing plug use, the utility model provides a kind of insulation crust rewiring that do not need to take apart, and just fast three utmost point bands of commutation draw the ground attaching plug.
The technical solution adopted in the utility model is: based on existing plug pattern, add one group of sliding contact formula commutation mechanism in insulation crust, this mechanism mainly is made up of three blocks of metal movable contact springs and two static contacts.The be laid in back of the body of a commutation button of three blocks of metal movable contact springs is
Shape is arranged in a plane, and two blocks of movable contact springs connect into same conductor on the limit, and extends a flexible conductor and a line electrode connection mutually; Middle independence, and extend a flexible conductor and another line electrode connection mutually separately, commutation button integral arrangement is in the space that can move freely, and the front portion of button is stretched out by the opening part of plug body, can be for the commutation operation.One end of two static contacts is fixed on two independently on the binding post, and the other end is by the elasticity of self, all the time with two independently movable contact spring contact.Just: a static contact contacts with middle movable contact spring; Another piece static contact contacts with wherein movable contact spring on the limit.When finding that motor need turn to, as long as pull up plug, stir stretch out plug body button to another side, the movable contact spring at its back side that is laid in just is shifted simultaneously, with two static contact position contacting crossbar transistion just takes place, thereby reaches the purpose of commutation.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model front (electrode stretches out face) structural representation.
Fig. 2 is the utility model circuit theory diagrams.
Fig. 3 is the utility model internal structure floor map.
Fig. 4 is the I-I cutaway view of Fig. 3.
With reference to the accompanying drawings: A, B, C are the phase line electrode, and E is a grounding electrode, and L1, L2, L3 are three-phase firewire, and PE is an earth connection, 1, the commutation button; 2, button extending port; 3, the lead that is connected of A electrode and movable contact spring 8; 4, the lead that is connected of C electrode and binding post 11; 5, the lead that is connected of the E utmost point and binding post 11; 6,7, fixing static contact; 8,9, movable contact spring; 10, the lead that is connected of B electrode and movable contact spring 9; 11, four binding posts; 12, power line fixed card; 13, fixed card screw; 14, plug insulation crust; 15, electrical appliance power lead.
Embodiment:
In Fig. 1, the key of dialling that commutation button (1) is positive partly places button extending port (2), and is not higher than the outer of button extending port (2), to guarantee that docking insertion with socket puts in place.
In Fig. 3, the back side of commutation button (1) is laid with metal movable contact spring (8) and (9), and be connected about wherein movable contact spring (8) divides two, the both sides of the movable contact spring that is laid in (9), insulation is each other
Shape is arranged in a plane.Movable contact spring (8) extends a flexible conductor (3) and line electrode (A) connection mutually; Movable contact spring (9) extends a flexible conductor (10) and is connected with the phase line electrode B.Two static contacts are elastic sheet metal (6) and (7), and an end is fixed on two binding posts (11) separately, and wherein static contact (6) at first contacts with one side of movable contact spring (8) is closed, and static contact (7) contacts with movable contact spring (9) is closed.The way of contact as shown in Figure 4.Phase line electrode (C) is connected with other two binding posts (11) respectively with (5) with lead (4) with grounding electrode (E).During use, four binding posts (11) insert corresponding L1, L2, L3 three-phase firewire and ground wire PE respectively, and Wire fastener (12) fixes power lead (15) with Wire fastener screw (13), prevents to be drawn out, and covers bonnet then and gets final product.When plug docks energising with socket after, if when finding that motor rotation direction is opposite with the real work direction, as long as pull up plug, stir the another side of commutation button (1) to button extending port (2), the movable contact spring that its reverse side lays (8) and (9) are shifted simultaneously, with the contact position generation crossbar transistion of two static contacts (6) and (7), two phase firewire conversion wherein just wiring position, thereby reach the purpose of convenient commutation.
Claims (5)
1, a kind of portable commutation plug, based on existing three utmost point band ground pin patterns, it is characterized in that: in insulation crust, add one group by three blocks of metal movable contact springs and two sliding contact formula commutation mechanisms that static contact is formed, the be laid in commutation button back side of an insulation of three blocks of metal movable contact springs, be big " E " font of English alphabet and be arranged in a plane, two are connected to same conductor on the limit, and pick out a flexible conductor and a line electrode connection mutually, insulation between two on one of centre and the limit, pick out a flexible conductor and a line electrode connection mutually separately, two static contact one ends are separately fixed on two power line binding posts, the other end contacts with movable contact spring is closed by the elastic force of self, and another phase line electrode is connected with two power line binding posts of residue respectively with grounding electrode.
2, a kind of portable commutation plug according to claim 1, it is characterized in that: the commutation button is for dialling the of bonding formula, can design by disjunctor with movable contact spring, also can the jointing type split design, front end is dialled the key position and is stretched out by plug body front openings place, external part is not higher than the opening outer, is located by opening two edges when button is stirred.
3, a kind of portable commutation plug according to claim 1, it is characterized in that: two static contacts are elastic sheet metal, level and smooth with the contact-making surface of movable contact spring, electric conductivity is good, and guarantee that movable contact spring can be free to slide, with the fixed form of power line binding post can be that auxiliary connects, also can make one.
4, a kind of portable commutation plug according to claim 1 is characterized in that: with line electrode mutually that movable contact spring connects can be in three phase line electrodes any two.
5, a kind of portable commutation plug according to claim 1, it is characterized in that: four binding posts are fixed in the plug insulation crust, with grounding electrode with another mutually the lead that is connected of line electrode can be hard connection, also can be flexible coupling, the mode that inserts power line is that screw is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201119821U CN201222557Y (en) | 2008-05-04 | 2008-05-04 | Portable commutation plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201119821U CN201222557Y (en) | 2008-05-04 | 2008-05-04 | Portable commutation plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201222557Y true CN201222557Y (en) | 2009-04-15 |
Family
ID=40576060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201119821U Expired - Fee Related CN201222557Y (en) | 2008-05-04 | 2008-05-04 | Portable commutation plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201222557Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024233A (en) * | 2015-07-08 | 2015-11-04 | 烟台宝钢钢管有限责任公司 | Overhauling power source box universal phase reversion socket |
-
2008
- 2008-05-04 CN CNU2008201119821U patent/CN201222557Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024233A (en) * | 2015-07-08 | 2015-11-04 | 烟台宝钢钢管有限责任公司 | Overhauling power source box universal phase reversion socket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20110504 |