CN204088082U - Big current dual-power transfer switch - Google Patents
Big current dual-power transfer switch Download PDFInfo
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- CN204088082U CN204088082U CN201420369728.7U CN201420369728U CN204088082U CN 204088082 U CN204088082 U CN 204088082U CN 201420369728 U CN201420369728 U CN 201420369728U CN 204088082 U CN204088082 U CN 204088082U
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Abstract
The utility model discloses a kind of big current dual-power transfer switch, comprise base, and be arranged on motor driver, main power source binding post, stand-by power supply binding post, load wiring terminal and the switching contact on base; Switching contact rotates and is arranged on load wiring terminal, and forms electrical connection, and motor driver comprises control circuit board, motor, gear reduction box and drive shaft; Switching contact, by being linked with drive shaft by the first STATEMENT OF FEDERALLY SPONSORED and the hinged linkage unit that forms of the second STATEMENT OF FEDERALLY SPONSORED, has at least one to be insulating element in the first STATEMENT OF FEDERALLY SPONSORED and the second STATEMENT OF FEDERALLY SPONSORED; Each load wiring terminal rotates and is provided with two switching contacts, corresponding main power source binding post and stand-by power supply binding post are provided with two panels and contact with two switching contacts are corresponding the contact chip being formed and be electrically connected.The designs simplification of dual-power transfer switch of the present utility model is reasonable, safe and reliable to operation, and can ensure big current work requirements.
Description
Technical field
The utility model relates to a kind of big current dual-power transfer switch.
Background technology
Double power supply automatic transfer switch to be used in electric power system, when main electricity breaks down, trouble power can being avoided to power to the load, reliably selecting in-put of spare power supply to run normally again, to ensure that power supply is uninterrupted.On market, double power supply automatic transfer switch is mainly based on PC level and CB level, but this switch controlling device structure is relatively complicated, and current class is smaller, can not meet electricity market big current growth requirement, adding contact is be enclosed in the insulation shell of plastics, and the temperature rise of contact can be higher, easily causes contact temperature too high, and then cause contact to be burnt, cause electric accident.In addition, double power supply automatic transfer switch on market is all realize motor by transmission stored energy mechanism to stop, this transmission stored energy mechanism forms primarily of rocking arm, the first rocking arm, the second rocking arm, connecting rod, the first bearing pin and spring, when main power source dead electricity, the spindle axis counterclockwise rotation of reducing gear, the second rocking arm is driven to rotate counterclockwise, second rocking arm drivening rod is to left movement, connecting rod drives the 3rd rocking arm and spring to left movement, now rocking arm and the first rocking arm are simultaneously to left movement and Compress Spring, make the energy storage of transmission stored energy mechanism; When rocking arm and the first rocker motion are to time vertical, the i.e. dead point of transmission stored energy mechanism, amount of spring compression is maximum, connecting rod drives rocking arm and the first rocking arm to continue to left movement, at this moment spring energy release, make rocking arm and the first rocking arm to left movement, after transmission stored energy mechanism crosses dead point, just send stop signal by sensitive switch to control circuit board.As can be seen here, this is used for realizing transmission stored energy mechanism that motor stops, and not only structure is relatively complicated, and this structure has the connection of multiple rocking arm and connecting rod, easily causes stuck phenomenon, so easily cause the parallel running of two-way different electrical power, load equipment is caused to burn; Or cause power supply to be interrupted.
Utility model content
To this, it is reasonable that the purpose of this utility model is to provide a kind of designs simplification, safe and reliable to operation, and can meet the dual-power transfer switch of big current work requirements.
The technical scheme realizing the utility model object is:
A kind of big current dual-power transfer switch, comprises base, and is arranged on motor driver, main power source binding post, stand-by power supply binding post, load wiring terminal and the switching contact on base; Described main power source binding post, described stand-by power supply binding post and described load wiring terminal are that isosceles triangle is arranged; Described switching contact rotates and is arranged on described load wiring terminal, and forming electrical connection, described switching contact contacts with described main power source binding post or described stand-by power supply binding post thus by main power source or stand-by power supply place in circuit under the drive of described motor driver; Motor, the gear reduction box be connected with described motor and the drive shaft by described gear reduction box driven rotary that described motor driver comprises control circuit board, is electrically connected with described control circuit board; Described switching contact, by being linked with described drive shaft by described first STATEMENT OF FEDERALLY SPONSORED and the hinged linkage unit that forms of the second STATEMENT OF FEDERALLY SPONSORED, has at least one to be insulating element in described first STATEMENT OF FEDERALLY SPONSORED and described second STATEMENT OF FEDERALLY SPONSORED; Each described load wiring terminal rotates and is provided with two switching contacts, corresponding described main power source binding post and described stand-by power supply binding post are provided with two panels and contact with two switching contacts are corresponding the contact chip being formed and be electrically connected.
In technique scheme, described motor driver also comprises the activation cam be fixed in described drive shaft and the sensitive switch being located at described activation cam both sides, and described sensitive switch is electrically connected with described control circuit board.
In technique scheme, described switching contact comprises two pieces of V-arrangement blades, is located at the spring leaf outside two V-arrangement blades and connects the bolt assembly of V-arrangement blade and spring leaf, and the inner side correspondence position of two V-arrangement blades forms and contacts with the described contact chip between two movable contact springs of described switching contact the conducting boss forming conducting.
In technique scheme, described insulating element is the insulating element that epoxy resin bonded fiber is made.
The utility model has positive effect: the designs simplification of (1) dual-power transfer switch of the present utility model is reasonable, by arranging at least one in the first STATEMENT OF FEDERALLY SPONSORED and the second STATEMENT OF FEDERALLY SPONSORED for insulating element, the good insulation of switching contact and drive shaft can be ensured like this, ensure line security reliability service; And by adopting two switching contact, change over switch can be made like this can to meet big current work requirements, the reliable contacts of switching contact and main power source binding post or stand-by power supply binding post can be ensured simultaneously, thus guarantee supply line's reliable power supply; In addition, in change over switch of the present utility model, described main power source binding post, described stand-by power supply binding post and described switching contact are outside exposed, are beneficial to reduction temperature rise like this, can effectively prevent contact to be burnt, guarantee supply line's reliable power supply further.(2) in dual-power transfer switch of the present utility model, described motor driver also comprises the activation cam be fixed in described drive shaft and the sensitive switch being located at described activation cam both sides, and described sensitive switch is electrically connected with described control circuit board; By adopting this structure when dual-power transfer switch runs, when drive shaft drives switching contact to contact with main power source binding post or stand-by power supply binding post, the activation cam be arranged in drive shaft then triggers one of them sensitive switch, and then send signal to control circuit board, make motor stalling, reach the object of " brake ".(3) in dual-power transfer switch of the present utility model, described switching contact comprises two pieces of V-arrangement blades, is located at the spring leaf outside two shape contacts and connects the bolt assembly of V-arrangement blade and spring leaf, the inner side correspondence position of two V-arrangement blades forms and contacts with the described contact chip between two movable contact springs of described switching contact the conducting boss forming conducting, by the rotational angle adopting this structure can reduce switching contact, and switching contact and contact chip reliable contacts can be ensured, ensure supply line's reliable power supply further.
Accompanying drawing explanation
Fig. 1 is the structural representation of dual-power transfer switch of the present utility model;
Fig. 2 is for from structural representation during dual-power transfer switch shown in another angle views Fig. 1;
Fig. 3 is in dual-power transfer switch of the present utility model, the structural representation of linkage unit;
Fig. 4 is in dual-power transfer switch of the present utility model, the structural representation of V-arrangement blade.
Reference numeral shown in figure is: 1-base; 2-motor driver; 21-motor; 22-reduction gear box; 23-drive shaft; 24-activation cam; 25-sensitive switch; 3-main power source binding post; 4-stand-by power supply binding post; 5-load wiring terminal; 6-switching contact; 61-V shape blade; 62-spring leaf; 63-bolt assembly; 64-conducting boss; 7-contact chip; 8-linkage unit; 81-first STATEMENT OF FEDERALLY SPONSORED; 82-second STATEMENT OF FEDERALLY SPONSORED.
Embodiment
Do to illustrate below in conjunction with the concrete structure of Figure of description to dual-power transfer switch of the present utility model:
Big current dual-power transfer switch in the present embodiment, as shown in Figure 1 to Figure 3, comprises base 1, and is arranged on motor driver 2, main power source binding post 3, stand-by power supply binding post 4, load wiring terminal 5 and the switching contact 6 on base 1; Described main power source binding post 3, described stand-by power supply binding post 4 and described load wiring terminal 5 is arranged in isosceles triangle; Described switching contact 6 rotates and is arranged on described load wiring terminal 5, and forming electrical connection, described switching contact 6 contacts with described main power source binding post 3 or described stand-by power supply binding post 4 thus by main power source or stand-by power supply place in circuit under the drive of described motor driver 2; Motor 21, the gear reduction box 22 be connected with described motor and the drive shaft 23 by described gear reduction box 22 driven rotary that described motor driver 2 comprises control circuit board, is electrically connected with described control circuit board; Specifically with shaft coupling, the projecting shaft of described gear reduction box 22 is connected with described drive shaft 23; Described switching contact 6, by being linked with described drive shaft 23 by described first STATEMENT OF FEDERALLY SPONSORED 81 and the hinged linkage unit 8 formed of the second STATEMENT OF FEDERALLY SPONSORED 82, has one at least for insulating element in described first STATEMENT OF FEDERALLY SPONSORED 81 and described second STATEMENT OF FEDERALLY SPONSORED 82; Each described load wiring terminal 5 rotates and is provided with two switching contacts 6, corresponding described main power source binding post 3 and described stand-by power supply binding post 4 are provided with two panels and contact with two switching contacts 6 are corresponding the contact chip 7 being formed and be electrically connected.The designs simplification of the change over switch in the present embodiment is reasonable, is insulating element, can ensures switching contact 6 and the good insulation of drive shaft 23 like this, ensure line security reliability service by least one setting in the first STATEMENT OF FEDERALLY SPONSORED 81 and the second STATEMENT OF FEDERALLY SPONSORED 82; And by adopting two switching contact 6, change over switch can be made like this can to meet big current work requirements, the reliable contacts of switching contact 6 and main power source binding post 3 or stand-by power supply binding post 4 can be ensured simultaneously, thus guarantee supply line's reliable power supply; In addition, in the change over switch of the present embodiment, described main power source binding post 3, described stand-by power supply binding post 4 and described switching contact 6 are outside exposed, are beneficial to reduction temperature rise like this, can effectively prevent contact to be burnt, guarantee supply line's reliable power supply further.
In the present embodiment, described motor driver also comprises the activation cam 24 be fixed in described drive shaft 23 and the sensitive switch 25 being located at described activation cam 24 both sides, and described sensitive switch 25 is electrically connected with described control circuit board; Described sensitive switch 25 is fixed on base 1; By adopting this structure when dual-power transfer switch runs, when drive shaft drives switching contact 6 to contact with main power source binding post 3 or stand-by power supply binding post 4, the activation cam 24 be arranged in drive shaft 23 triggers one of them sensitive switch 25, and then send signal to control circuit board, make motor 21 stall, reach the object of " brake ".
Described switching contact 6 comprises two pieces of V-arrangement blades 61, is located at the spring leaf 62 outside two V-arrangement blades 61 and connects the bolt assembly 63 of V-arrangement blade 61 and spring leaf 62, the inner side correspondence position of two V-arrangement blades 61 forms and contacts the conducting boss 64 forming conducting, referring to Fig. 4 with the described contact chip 7 between two movable contact springs 61 of described switching contact 6.By the rotational angle adopting this structure can reduce switching contact 6, and switching contact 6 and contact chip 7 reliable contacts can be ensured, ensure supply line's reliable power supply further.
Described insulating element in the present embodiment is the insulating element that epoxy resin bonded fiber is made.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to connotation of the present utility model the apparent change of extending out or variation still belong to protection range of the present utility model.
Claims (4)
1. a big current dual-power transfer switch, comprise base (1), and be arranged on motor driver (2), main power source binding post (3), stand-by power supply binding post (4), load wiring terminal (5) and the switching contact (6) on base (1); Described main power source binding post (3), described stand-by power supply binding post (4) and described load wiring terminal (5) are arranged in isosceles triangle; Described switching contact (6) rotates and is arranged on described load wiring terminal (5), and forming electrical connection, described switching contact (6) contacts with described main power source binding post (3) or described stand-by power supply binding post (4) thus by main power source or stand-by power supply place in circuit under the drive of described motor driver (2); It is characterized in that: motor (21), the gear reduction box (22) be connected with described motor and the drive shaft (23) by described gear reduction box (22) driven rotary that described motor driver (2) comprises control circuit board, is electrically connected with described control circuit board; Described switching contact (6), by being linked with described drive shaft (23) by the first STATEMENT OF FEDERALLY SPONSORED (81) and the hinged linkage unit (8) formed of the second STATEMENT OF FEDERALLY SPONSORED (82), has one at least for insulating element in described first STATEMENT OF FEDERALLY SPONSORED (81) and described second STATEMENT OF FEDERALLY SPONSORED (82); The upper rotation of each described load wiring terminal (5) is provided with two switching contacts (6), and corresponding described main power source binding post (3) and described stand-by power supply binding post (4) are provided with two panels and contact with two switching contacts (6) are corresponding the contact chip (7) being formed and be electrically connected.
2. big current dual-power transfer switch according to claim 1, it is characterized in that: described motor driver also comprises the activation cam (24) be fixed in described drive shaft (23) and the sensitive switch (25) being located at described activation cam (24) both sides, and described sensitive switch (25) is electrically connected with described control circuit board.
3. big current dual-power transfer switch according to claim 1 and 2, it is characterized in that: described switching contact (6) comprises two pieces of V-arrangement blades (61), is located at the spring leaf (62) in two V-arrangement blade (61) outsides and connects the bolt assembly (63) of V-arrangement blade (61) and spring leaf (62), and the inner side correspondence position of two V-arrangement blades (61) forms and contacts with the described contact chip (7) between two movable contact springs (61) being positioned at described switching contact (6) conducting boss (64) forming conducting.
4. big current dual-power transfer switch according to claim 1, is characterized in that: described insulating element is the insulating element that epoxy resin bonded fiber is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369728.7U CN204088082U (en) | 2014-07-04 | 2014-07-04 | Big current dual-power transfer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369728.7U CN204088082U (en) | 2014-07-04 | 2014-07-04 | Big current dual-power transfer switch |
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| CN204088082U true CN204088082U (en) | 2015-01-07 |
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| CN201420369728.7U Active CN204088082U (en) | 2014-07-04 | 2014-07-04 | Big current dual-power transfer switch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761962A (en) * | 2016-04-06 | 2016-07-13 | 中国船舶重工集团公司第七〇二研究所 | Electric transfer switch |
| CN113314361A (en) * | 2021-06-11 | 2021-08-27 | 中煤科工集团信息技术有限公司 | Cable rapid alternate power supply replacing device and method suitable for multi-equipment group |
| CN114613625A (en) * | 2022-03-10 | 2022-06-10 | 浙江万松电气有限公司 | Double-power-supply quick change-over switch |
-
2014
- 2014-07-04 CN CN201420369728.7U patent/CN204088082U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761962A (en) * | 2016-04-06 | 2016-07-13 | 中国船舶重工集团公司第七〇二研究所 | Electric transfer switch |
| CN105761962B (en) * | 2016-04-06 | 2018-05-11 | 中国船舶重工集团公司第七一二研究所 | A kind of electronic change-over switch |
| CN113314361A (en) * | 2021-06-11 | 2021-08-27 | 中煤科工集团信息技术有限公司 | Cable rapid alternate power supply replacing device and method suitable for multi-equipment group |
| CN113314361B (en) * | 2021-06-11 | 2023-07-25 | 中煤科工集团信息技术有限公司 | Cable rapid alternating power supply replacement device and method suitable for multiple equipment groups |
| CN114613625A (en) * | 2022-03-10 | 2022-06-10 | 浙江万松电气有限公司 | Double-power-supply quick change-over switch |
| CN114613625B (en) * | 2022-03-10 | 2024-01-02 | 浙江万松电气有限公司 | Dual-power supply quick change-over switch |
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