CN211579686U

CN211579686U - Automatic switching device for standby power supply

Info

Publication number: CN211579686U
Application number: CN202020349881.9U
Authority: CN
Inventors: 何海军; 王玉婉
Original assignee: Nanjing Xinda Jicheng Electric Power Technology Co ltd
Current assignee: Nanjing Xinda Jicheng Electric Power Technology Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-09-25
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses an automatic switching device of stand-by power supply belongs to power equipment technical field, including switching case, automatic switching mechanism, the electrically conductive mechanism of wiring, power and stand-by power supply commonly used, automatic switching mechanism is equipped with left mounting panel and right mounting panel respectively including the backup pad that axis of rotation, slide rail, rack, left electro-magnet, reset assembly, right electro-magnet and level set up, and the inside both sides of switching case, reset assembly set up the right-hand member at the rack, be equipped with on the slide rail rather than sliding fit's sliding seat, are connected through the bearing between axis of rotation and the switching case, and the cover is equipped with the drive gear with rack toothing in the axis of rotation. The utility model discloses need not to use the motor can accomplish the automatic switching operation to stand-by power supply, can make axis of rotation and cam rotate through automatic switching mechanism when power failure commonly used, get off at the effect of the electrically conductive mechanism of wiring and make lower contact and switching contact lever contact, make stand-by power supply can provide the power.

Description

Automatic switching device for standby power supply

Technical Field

The utility model relates to a power equipment technical field specifically says to an automatic switching device of stand-by power supply.

Background

In a power network, many users have high requirements on the reliability of power supply, and once a power failure accident occurs in some units, a great economic loss and even casualties can be brought to the units.

The patent with the application number of CN201620870698.7 discloses a medium-voltage dual-power automatic switching device. This automatic switching device of medium voltage dual supply, rational in infrastructure, the practicality is strong, the setting of first contact and second contact for with the contact lever contact, the setting of sheave and driver plate, the driver plate is once changeed a week, the sheave is rotatory 90 degrees, thereby connects different circuits, realizes the function of dual supply switching.

However, the device needs an extra storage battery to supply power to the motor in the actual operation process, normal switching operation of the standby power supply is directly affected when the storage battery is out of power or the motor fails, a worker needs to maintain the storage battery regularly to ensure normal operation of the motor, and great troubles are brought to the worker.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic switching device of stand-by power supply to can't avoid influencing the problem of stand-by power supply normal switching work because of motor damage or battery do not have the electricity among the solution prior art.

The technical scheme of the utility model is that: including switching case, automatic switching mechanism, wiring electrically conductive mechanism, common power supply and stand-by power supply, automatic switching mechanism and wiring electrically conductive mechanism all set up the inside at the switching case, common power supply sets up the top at the switching case, stand-by power supply sets up the inside bottom at the switching case, automatic switching mechanism includes axis of rotation, slide rail, rack, left electro-magnet, reset assembly, right electro-magnet and the horizontal backup pad that sets up, the inside both sides of switching case are equipped with left mounting panel and right mounting panel respectively, left electro-magnet and right electro-magnet set up respectively on left mounting panel and right mounting panel, reset assembly sets up the right-hand member at the rack, the slide rail level sets up the top at the backup pad, be equipped with the sliding seat rather than sliding fit on the slide rail, the rack level sets up the top at the sliding seat, pass through the wire connection between left electro-magnet and the common power supply, the right electromagnet is connected with the standby power supply through a wire, the rotating shaft is connected with the switching box through a bearing, and a transmission gear meshed with the rack is sleeved on the rotating shaft.

Further, the reset assembly is including two reset spring and two extension seats, two the extension seat sets up respectively in the right-hand member both sides of rack, every reset spring's both ends are connected respectively on the right side of extending the seat and the inside right side of switching case, both ends all are equipped with the iron sheet about the rack.

Further, electrically conductive mechanism of wiring leads the slide bar, every including roof, elevator, bracing piece, bottom plate and two lead the slide bar it is equal vertical setting between roof and bottom plate to lead the slide bar, the elevator can gliding cover establish on two lead the slide bar, the bracing piece level sets up on the lateral wall of elevator, the cover is equipped with the cam in the axis of rotation, the cover is equipped with the drive wheel with cam drive complex on the bracing piece.

Furthermore, the wiring conductive mechanism further comprises a connecting seat arranged on the side wall of the lifting block, a vertically-arranged switching contact rod is arranged on the connecting seat, two vertically-arranged telescopic springs are arranged at the top of the lifting block, and two ends of each telescopic spring are respectively connected to the top of the lifting block and the bottom of the top plate.

Further, the inner wall of switching case is equipped with the mount pad and sets up the lower mount pad under last mount pad, the bottom of going up the mount pad is equipped with the contact, the bottom of mount pad is equipped with down the contact down, switching contact lever, last contact and lower contact are coaxial to be set up, go up to be connected through the wire between contact and the power commonly used, be connected through the wire between contact and the stand-by power supply down.

Furthermore, the side wall of the switching box is provided with a wiring end, and the wiring end is connected with the switching contact rod through a wire.

The utility model discloses an improve and provide a stand-by power supply automatic switching device here, compare with prior art, have following improvement and advantage:

the utility model discloses be equipped with automatic switching mechanism and wiring conductive mechanism, can make axis of rotation and cam rotate through automatic switching mechanism when the power outage of commonly used power, make the lower contact with switching contact lever under the effect of wiring conductive mechanism, make stand-by power supply can provide the power, the utility model discloses need not to use the motor can accomplish the automatic switching operation to stand-by power supply, adopt the advantage of rack and drive gear meshing, the precision is higher, is convenient for the position of high accuracy control switching contact lever, and the right-hand member iron sheet of rack carries out magnetism with right electro-magnet and inhales the cooperation, locks drive gear, locks the position of switching contact lever promptly; the problem that normal switching work of the standby power supply cannot be influenced due to damage of a motor or power failure of a storage battery in the prior art is solved.

Drawings

The invention is further explained below with reference to the figures and examples:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a partial sectional view of the first embodiment of the present invention;

fig. 4 is a partial sectional view of the present invention.

Description of reference numerals:

the switching box 1, the left mounting plate 11, the right mounting plate 12, the upper mounting base 13, the upper contact 14, the lower mounting base 15, the lower contact 16, the automatic switching mechanism 2, the rotating shaft 21, the transmission gear 22, the sliding rail 23, the sliding base 24, the rack 25, the iron sheet 251, the left electromagnet 26, the right electromagnet 27, the supporting plate 28, the reset component 29, the reset spring 291, the wiring conducting mechanism 3, the top plate 31, the lifting block 32, the supporting rod 33, the bottom plate 34, the guide sliding rod 35, the cam 36, the transmission wheel 37, the connecting base 38, the switching contact rod 39, the expansion spring 4, the common power supply 5, the backup power supply 6 and the wiring terminal 7.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 4, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an automatic switching device of standby power supply through the improvement, as shown in fig. 1-4, including switching box 1, automatic switching mechanism 2, wiring conductive mechanism 3, common power supply 5 and standby power supply 6, automatic switching mechanism 2 and wiring conductive mechanism 3 are all arranged in switching box 1, common power supply 5 is arranged at the top of switching box 1, standby power supply 6 is arranged at the inner bottom of switching box 1, automatic switching mechanism 2 includes rotating shaft 21, slide rail 23, rack 25, left electromagnet 26, reset assembly 29, right electromagnet 27 and horizontally arranged support plate 28, left mounting plate 11 and right mounting plate 12 are respectively arranged at the two inner sides of switching box 1, left electromagnet 26 and right electromagnet 27 are respectively arranged on left mounting plate 11 and right mounting plate 12, reset assembly 29 is arranged at the right end of rack 25, the sliding rail 23 is horizontally arranged at the top of the supporting plate 28, the sliding rail 23 is provided with a sliding seat 24 in sliding fit with the sliding rail 23, the rack 25 is horizontally arranged at the top of the sliding seat 24, the left electromagnet 26 is connected with the common power supply 5 through a lead, the right electromagnet 27 is connected with the standby power supply 6 through a lead, the rotating shaft 21 is connected with the switching box 1 through a bearing, and the rotating shaft 21 is sleeved with a transmission gear 22 meshed with the rack 25; the automatic switching mechanism 2 can enable the rotating shaft 21 and the cam 36 to rotate when the common power supply 5 is powered off, and the lower contact 16 is contacted with the switching contact rod 39 under the action of the wiring conductive mechanism 3 to enable the standby power supply 6 to provide power, so that the utility model discloses the lower contact 16 can be collided with the switching contact rod 39 without using a motor, and the problem that the normal switching work of the standby power supply 6 is influenced because the motor is damaged or the storage battery is out of power because a worker is not required to supply power to the motor because the motor is not required to be used; the rack 25 and the transmission gear 22 are meshed, so that the precision is high, and the position of the switching contact rod 39 can be controlled conveniently and precisely; when the power supply 5 is cut off, the left electromagnet 26 loses magnetism, at this time, the rack 25 moves rightwards under the action of the self-restoring force of the return spring 291, the rack 25 can be meshed with the transmission gear 22, so that the transmission gear 22 drives the rotating shaft 21 and the cam 36 to rotate, and the right iron sheet 251 of the rack 25 is in magnetic attraction fit with the right electromagnet 27 to lock the transmission gear 22, namely, the position of the switching contact rod 39.

Specifically, the reset assembly 29 includes two reset springs 291 and two extension seats, the two extension seats are respectively disposed on two sides of the right end of the rack 25, two ends of each reset spring 291 are respectively connected to the right side of the extension seat and the right side of the inside of the switching box 1, and iron sheets 251 are disposed at both left and right ends of the rack 25; when the power supply 5 is cut off, the left electromagnet 26 loses magnetism, the rack 25 moves rightwards under the action of the self-restoring force of the return spring 291, the rack 25 can be meshed with the transmission gear 22, the transmission gear 22 drives the rotating shaft 21 and the cam 36 to rotate, and the extension seat is used for installing the return spring 291.

Specifically, as shown in fig. 3 and 4, the wiring conductive mechanism 3 includes a top plate 31, a lifting block 32, a support rod 33, a bottom plate 34 and two guide slide rods 35, each guide slide rod 35 is vertically arranged between the top plate 31 and the bottom plate 34, the lifting block 32 can be slidably sleeved on the two guide slide rods 35, the support rod 33 is horizontally arranged on the side wall of the lifting block 32, a cam 36 is sleeved on the rotating shaft 21, and a transmission wheel 37 in transmission fit with the cam 36 is sleeved on the support rod 33; the cam 36 drives the transmission wheel 37 to move in the rotation process, the transmission wheel 37 can drive the lifting block 32 to move in the vertical direction, the self restoring force of the lifting block 32 enables the lifting block 32 to move downwards through the expansion spring 4, and the connecting seat 38 and the switching contact lever 39 can be driven to move, so that the switching contact lever 39 can be in contact with the lower contact 16.

Specifically, the wiring conductive mechanism 3 further comprises a connecting seat 38 arranged on the side wall of the lifting block 32, a vertically arranged switching contact rod 39 is arranged on the connecting seat 38, two vertically arranged extension springs 4 are arranged at the top of the lifting block 32, and two ends of each extension spring 4 are respectively connected to the top of the lifting block 32 and the bottom of the top plate 31; the extension spring 4 can move the lifting block 32 downward by its own restoring force even if the switching contact lever 39 can make contact with the lower contact 16.

Specifically, an upper mounting seat 13 and a lower mounting seat 15 arranged right below the upper mounting seat 13 are arranged on the inner wall of the switching box 1, an upper contact 14 is arranged at the bottom of the upper mounting seat 13, a lower contact 16 is arranged at the bottom of the lower mounting seat 15, the switching contact rod 39, the upper contact 14 and the lower contact 16 are coaxially arranged, the upper contact 14 is connected with a common power supply 5 through a lead, and the lower contact 16 is connected with a standby power supply 6 through a lead; the switching contact rod 39, the upper contact 14 and the lower contact 16 are coaxially arranged, and the switching contact rod 39 is advantageous in that the switching contact rod 39 can be collided with the lower contact 16 when moving downwards.

Specifically, a wiring terminal 7 is arranged on the side wall of the switching box 1, and the wiring terminal 7 is connected with the switching contact rod 39 through a wire; the worker connects the terminal 7 with the equipment needing power supply, and the power supply of the standby power supply 6 can be completed.

The utility model discloses a theory of operation: the automatic switching mechanism 2 can enable the rotating shaft 21 and the cam 36 to rotate when the common power supply 5 is powered off, specifically, when the common power supply 5 is powered off, the left electromagnet 26 loses magnetism, at the moment, the rack 25 moves rightwards under the action of the self restoring force of the return spring 291, and the rack 25 can be meshed with the transmission gear 22 to enable the transmission gear 22 to drive the rotating shaft 21 and the cam 36 to rotate;

the lower contact 16 is contacted with the switching contact lever 39 under the action of the wiring conductive mechanism 3, so that the standby power supply 6 can provide power, the cam 36 drives the driving wheel 37 to move in the rotating process, the driving wheel 37 can drive the lifting block 32 to move in the vertical direction, the restoring force of the lifting block 32 is enabled to enable the lifting block 32 to move downwards at the telescopic spring 4, the connecting seat 38 and the switching contact lever 39 can be driven to move, the switching contact lever 39 can be contacted with the lower contact 16, and a worker can connect the wiring terminal 7 with equipment needing power supply, so that the power supply of the standby power supply 6 can be completed.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a stand-by power supply automatic switching device which characterized in that: the automatic switching device comprises a switching box (1), an automatic switching mechanism (2), a wiring conductive mechanism (3), a common power source (5) and a standby power source (6), wherein the automatic switching mechanism (2) and the wiring conductive mechanism (3) are arranged inside the switching box (1), the common power source (5) is arranged at the top of the switching box (1), the standby power source (6) is arranged at the inner bottom end of the switching box (1), the automatic switching mechanism (2) comprises a rotating shaft (21), a sliding rail (23), a rack (25), a left electromagnet (26), a reset component (29), a right electromagnet (27) and a horizontally arranged support plate (28), a left mounting plate (11) and a right mounting plate (12) are respectively arranged on two sides of the inside of the switching box (1), the left electromagnet (26) and the right electromagnet (27) are respectively arranged on the left mounting plate (11) and the right mounting plate (12), reset assembly (29) sets up the right-hand member at rack (25), slide rail (23) level sets up the top in backup pad (28), be equipped with on slide rail (23) with its sliding fit's sliding seat (24), rack (25) level sets up the top at sliding seat (24), be connected through the wire between left side electro-magnet (26) and common power source (5), be connected through the wire between right side electro-magnet (27) and stand-by power source (6), be connected through the bearing between axis of rotation (21) and switching box (1), the cover is equipped with drive gear (22) with rack (25) meshing on axis of rotation (21).

2. The automatic switching device for the standby power supply according to claim 1, wherein: reset assembly (29) is including two reset spring (291) and two extension seats, two the extension seat sets up respectively in the right-hand member both sides of rack (25), every reset spring (291) both ends are connected respectively on the right side of extending the seat and the inside right side of switching case (1), both ends all are equipped with iron sheet (251) about rack (25).

3. The automatic switching device for the standby power supply according to claim 1, wherein: wiring electrically conductive mechanism (3) are including roof (31), elevator (32), bracing piece (33), bottom plate (34) and two guide slide bar (35), every guide the equal vertical setting of slide bar (35) between roof (31) and bottom plate (34), elevator (32) can gliding cover establish on two guide slide bar (35), bracing piece (33) level sets up on the lateral wall of elevator (32), the cover is equipped with cam (36) on axis of rotation (21), the cover is equipped with drive wheel (37) with cam (36) transmission complex on bracing piece (33).

4. The automatic switching device of the standby power supply according to claim 3, wherein: wiring conductive mechanism (3) are still including setting up connecting seat (38) on elevator (32) lateral wall, be equipped with switching contact lever (39) of vertical setting on connecting seat (38), the top of elevator (32) is equipped with two expanding spring (4) of vertical setting, every the both ends of expanding spring (4) are connected respectively in the top of elevator (32) and the bottom of roof (31).

5. The automatic switching device of the standby power supply according to claim 4, wherein: the inner wall of switching case (1) is equipped with mount pad (13) and sets up lower mount pad (15) under last mount pad (13), the bottom of going up mount pad (13) is equipped with contact (14), the bottom of mount pad (15) is equipped with down contact (16) down, switching contact lever (39), last contact (14) and lower contact (16) coaxial setting, go up and be connected through the wire between contact (14) and power (5) commonly used, be connected through the wire between contact (16) and stand-by power supply (6) down.

6. The automatic switching device of the standby power supply according to claim 4, wherein: the side wall of the switching box (1) is provided with a wiring end (7), and the wiring end (7) is connected with the switching contact rod (39) through a wire.