CN215933409U

CN215933409U - Dual-power transfer switch

Info

Publication number: CN215933409U
Application number: CN202122183062.9U
Authority: CN
Inventors: 陈川; 康颖; 张春亮; 魏中奥; 张艳杰; 陈祥祥
Original assignee: State Grid East Inner Mongolia Electric Power Co ltd Maintenance Branch; State Grid Corp of China SGCC
Current assignee: State Grid East Inner Mongolia Electric Power Co ltd Maintenance Branch; State Grid Corp of China SGCC
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-03-01
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a dual-power transfer switch, which comprises a base, a main power switch, a standby power switch and a transfer mechanism, wherein the main power switch, the standby power switch and the transfer mechanism are arranged on the base; the shifting fork body comprises a left shifting fork body connected with the main power switch and a right shifting fork body connected with the standby power switch. The driving motor drives the rotary table to rotate so as to drive the shifting fork body to rotate, and moreover, the dual power supply is disconnected/connected with the common power supply and then the standby power supply is connected/disconnected through the left shifting fork body and the right shifting fork body, so that the structure is simple, the design is novel, and the safety, the stability and the reliability of a power distribution system are improved.

Description

Dual-power transfer switch

Technical Field

The utility model relates to the technical field of low-voltage appliances, in particular to a dual-power transfer switch.

Background

The low-voltage electrical appliance is an element or equipment which can be manually or automatically switched on and off according to external signals and requirements so as to realize switching, control, protection, detection, transformation and regulation of circuits or non-electric objects. Generally, low-voltage electrical appliances can be divided into two categories, namely distribution electrical appliances and control electrical appliances, and are basic constituent elements of a complete set of electrical equipment. In industry, agriculture, traffic, national defense and electricity utilization departments of people, low-voltage power supply is mostly adopted, so the safety and stability of electrical components directly influence the reliability of a low-voltage power supply system.

At present, the dual-power automatic transfer switch is mainly applied to important places such as high-rise buildings, residential districts, hospitals, airports, docks, markets, communication, fire protection, metallurgy, chemical engineering, textiles, petroleum, coal mines and the like which are not allowed to have power failure. The intelligent circuit breaker comprises two molded case circuit breakers or isolating switches, a transmission mechanism with mechanical interlocking, an intelligent controller and the like. The system has short circuit and overload protection (CB level), and automatically switches to a standby power supply when any phase or multiple phases of the common power supply have phase loss, voltage loss abnormity and undervoltage; when the common power supply is normal, the common power supply is automatically switched to, but the stability of the conventional dual-power automatic change-over switch is not enough and does not have strong reliability, so that the reliable operation of a power distribution system cannot be ensured.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a dual-power transfer switch, which aims to solve the problems of complex structure, low safety stability and low reliability of the dual-power transfer switch in the prior art.

In order to achieve the above purpose, the utility model provides the following technical scheme: a dual-power transfer switch comprises a base, a main power switch, a standby power switch and a transfer mechanism, wherein the main power switch, the standby power switch and the transfer mechanism are arranged on the base; the shifting fork body comprises a left shifting fork body connected with the main power switch and a right shifting fork body connected with the standby power switch.

In yet another embodiment of the present application, the left shifting fork body includes a left shifting portion, a left rotation fixing portion, and a left intermediate portion located between the left shifting portion and the left rotation fixing portion, the left intermediate portion is connected to the turntable, the left shifting portion is connected to the main power switch, and the left rotation fixing portion is connected to the bracket body;

the right shifting fork body comprises a right shifting portion, a right rotating fixing portion and a right middle portion located between the right shifting portion and the right rotating fixing portion, the right middle portion is connected with the turntable, the right shifting portion is connected with the standby power switch, and the right rotating fixing portion is connected to the support body.

In another embodiment of this application, stir the portion on a left side, stir on the portion on the right side and seted up left U type groove and right U type groove respectively, main switch's pulling handle is placed left side U type inslot, stand-by power switch's pulling handle is placed right side U type inslot.

In a further embodiment of the present application, the left middle portion and the right middle portion are respectively provided with a left through hole and a right through hole.

In yet another embodiment of the present application, a first tooth-shaped protrusion and a second tooth-shaped protrusion are disposed along the periphery of the rotary disc and extend outward to match the left through hole and the right through hole respectively, the first tooth-shaped protrusion slides in/out of the left through hole, and the second tooth-shaped protrusion slides in/out of the right through hole.

In another embodiment of the present application, the left rotation fixing portion and the right rotation fixing portion are respectively provided with a left rotation hole and a right rotation hole.

In another embodiment of the present application, the bracket body includes a left bracket connected to the main power switch, a right bracket connected to the standby power switch, and a connecting bracket located between the left bracket and the right bracket.

In still another embodiment of this application, the left socle right branch frame is last to be provided with respectively and to be used for fixing the left shift fork body the left axle sleeve and the right axle sleeve of right shift fork body.

In yet another embodiment of the application, a protective cover is arranged on the outside of the switching mechanism.

According to the embodiment of the application, the following advantages are provided:

1. the driving motor drives the rotary table to rotate so as to drive the shifting fork body to rotate, and moreover, the dual power supply is disconnected/connected with the common power supply and then the standby power supply is connected/disconnected through the left shifting fork body and the right shifting fork body, so that the structure is simple, the design is novel, and the safety, the stability and the reliability of a power distribution system are improved.

2. The left rotating fixing part of the left shifting fork body is connected to the left support through the left shaft sleeve, and the right rotating fixing part of the right shifting fork body is connected to the right support through the right shaft sleeve, so that the shifting fork body rotates more stably, and the safety and the stability of the change-over switch are further improved;

3. the first tooth-shaped lug slides in/out of the left through hole and the second tooth-shaped lug slides in/out of the right through hole, so that a common power supply is switched off/on by a double power supply, and then a standby power supply is switched on/off, the structure is simplified, and the stability and the reliability of the change-over switch are guaranteed.

4. The protection cover is arranged on the outer side of the switching mechanism, so that the appearance of the dual-power switch is more attractive, and the safety problem caused by touch can be prevented.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a schematic view of an assembly structure of a dual power transfer switch according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a switching mechanism in an embodiment of the present application;

FIG. 3 is a top view of a switching mechanism in an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

fig. 5 is a schematic structural view of the left fork body in the embodiment of the present application.

In the figure:

1. a stent body; 2. a drive motor; 3. a turntable; 11. a left bracket; 12. a right bracket; 13. a connecting frame; 10. a base; 20. a main power switch; 30. a standby power switch; 21. an output shaft of the drive motor; 31. a first tooth-shaped projection; 32. a second tooth-shaped projection; 41. a left fork body; 42. a right fork body; 51. a left shaft sleeve; 52. a right shaft sleeve; 101. a protective cover; 201. a pulling handle of the main power switch; 301. a pulling handle of the standby power switch; 411. a left toggle part; 412. a left rotation fixing part; 413. a left intermediate portion; 4110. a left U-shaped groove; 4120. a left rotation hole; 4130. and a left through hole.

Detailed Description

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

It should be noted that, unless the directions indicated are individually defined, the directions of up, down, left, right, transverse, vertical, etc. referred to herein are the directions of up, down, left, right, transverse, vertical, etc. as shown in fig. 1 of the embodiment of the present application, and if the specific posture is changed, the directional indication is changed accordingly. The terms "plurality," "plurality," and "a number" mean two or more, and are used herein collectively to describe "first," "second," "third," and the like, and do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Further, in the various embodiments of the present disclosure, the same or similar reference numerals denote the same or similar components.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part, unless otherwise expressly stated or limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the scope of the present invention as claimed.

Examples

As shown in fig. 1, the present embodiment provides a dual power supply changeover switch, which includes a base 10, and a main power supply switch 20, a backup power supply switch 30, a changeover mechanism and a controller, which are disposed on the base 10, wherein a protective cover is disposed on an outer side of the changeover mechanism, and the changeover mechanism is located between the main power supply switch 20 and the backup power supply switch 30; as shown in fig. 2, the conversion mechanism in this embodiment includes a fork body and a bracket body 1, a driving motor 20 is fixed on the bracket body 1, a rotary disc 3 is connected to an output rotating shaft 201 of the bracket body, and the rotary disc 3 is driven by the driving motor 20 to rotate to drive the fork body to rotate; further, the fork body in the present embodiment includes a left fork body 41 connected to the main power switch 20 and a right fork body 42 connected to the backup power switch 30.

It should be further explained that the dual power automatic transfer switch in the embodiment mainly comprises two molded case circuit breakers, a transfer mechanism and a controller, and the controller adopts a self-switching and self-resetting working mode. The controller controls the mechanism motor to push the breaker to open and close through the measurement of a power supply voltage signal of an upper opening of a common power supply breaker in the mechanism, the detection of the opening and closing state of the breaker and the logic judgment of the single chip microcomputer, so that the mutual conversion of a common power supply and a standby power supply is realized, and the aim of continuously and reliably supplying power is fulfilled. In an automatic mode, when the common power supply is under voltage loss, undervoltage and overvoltage abnormal, the controller can switch the mechanism to realize the operation of automatically switching to the standby power supply and automatically switching to the common power supply after the common power supply is recovered to be normal. The user can also set the controller to be in a manual mode, and the controller is manually operated to complete the conversion between the common power supply and the standby power supply. When a fire alarm occurs, the controller can enable the common power supply and the standby power supply to be in a double-division state. In addition, the controller can also detect and indicate the closing state of the common power supply and the standby power supply, the automatic and manual mode setting and the power supply.

Through the rotatory of driving motor 20 drive carousel 3 in this embodiment, and then drive the shift fork body rotatory, moreover, through left shift fork body 41 and right shift fork body 42, realize dual power supply disconnection/switch-on power commonly used, later switch-on/switch-off stand-by power supply, simple structure, the modern design has improved distribution system's security, stability and reliability.

As a preferable embodiment, as shown in fig. 5, the left fork body 41 of the present embodiment includes a left toggle part 411, a left rotation fixing part 412, and a left middle part 413 located between the left toggle part 411 and the left rotation fixing part 412, and the left middle part is opened with a left through hole 4130; the right shifting fork body in the embodiment comprises a right shifting part, a right rotating fixing part and a right middle part positioned between the right shifting part and the right rotating fixing part; as shown in fig. 2, a first tooth-shaped protrusion 31 and a second tooth-shaped protrusion 32 respectively matching with the left through hole 4130 and the right through hole extend outward along the peripheral edge of the rotary disk 3 in the present embodiment. The first tooth-shaped lug 31 slides in/out of the left through hole 4130, and the second tooth-shaped lug 32 slides in/out of the right through hole, so that a common power supply can be switched off/on by a double power supply, and then a standby power supply can be switched on/off, thereby simplifying the structure and ensuring the stability and reliability of the change-over switch. .

As a preferred embodiment, as shown in fig. 3 and 5, the left toggle part 411 and the right toggle part in this embodiment are respectively provided with a left U-shaped groove 4110 and a right U-shaped groove; referring to fig. 1, in the present embodiment, the pulling handle 201 of the main power switch is disposed in the left U-shaped groove 4110, and the pulling handle 301 of the standby power switch is disposed in the right U-shaped groove.

As a preferred embodiment, as shown in fig. 5, in the present embodiment, the left rotation fixing part 412 and the right rotation fixing part are respectively provided with a left rotation hole 4120 and a right rotation hole. As shown in fig. 2 and 4, the stand body 1 of the present embodiment includes a left stand 11 connected to the main power switch 20, a right stand 12 connected to the auxiliary power switch 30, and a connecting stand 13 located between the left stand 11 and the right stand 12. Further, the left bracket 11 and the right bracket 12 in the present embodiment are respectively provided with a left bushing 51 and a right bushing 52 for fixing the left fork body 41 and the right fork body 42. The left rotating fixing part 412 of the left shifting fork body 41 is connected to the left support 11 through the left shaft sleeve 51, and the right rotating fixing part of the right shifting fork body is connected to the right support through the right shaft sleeve, so that the shifting fork body rotates more stably, and the safety and the stability of the change-over switch are further improved.

Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims

1. The utility model provides a dual supply change over switch, includes the base, and sets up main power source switch, stand-by power source switch and the shifter on the base, the shifter is located main power source switch with between the stand-by power source switch, its characterized in that:

the switching mechanism comprises a shifting fork body and a support body, a driving motor is fixed on the support body, a rotary table is connected to an output rotating shaft of the driving motor, and the rotary table drives the shifting fork body to rotate;

the shifting fork body comprises a left shifting fork body connected with the main power switch and a right shifting fork body connected with the standby power switch.

2. The dual power transfer switch of claim 1, wherein: the left shifting fork body comprises a left shifting part, a left rotating fixing part and a left middle part, the left middle part is positioned on the left shifting part and the left rotating fixing part, the left middle part is connected with the turntable, the left shifting part is connected with the main power switch, and the left rotating fixing part is connected to the bracket body;

3. The dual power transfer switch of claim 2, wherein: the left poking part and the right poking part are respectively provided with a left U-shaped groove and a right U-shaped groove, the pulling handle of the main power switch is placed in the left U-shaped groove, and the pulling handle of the standby power switch is placed in the right U-shaped groove.

4. The dual power transfer switch of claim 2, wherein: and the left middle part and the right middle part are respectively provided with a left through hole and a right through hole.

5. The dual power transfer switch of claim 4, wherein: the edge the periphery of carousel is provided with along outwards extending the first profile of tooth lug and the second profile of tooth lug respectively with left side through-hole right through-hole looks adaptation, first profile of tooth lug slide in/roll-off in left side through-hole, second profile of tooth lug slide in/roll-off in right side through-hole.

6. The dual power transfer switch of claim 2, wherein: the left rotating fixing part and the right rotating fixing part are respectively provided with a left rotating hole and a right rotating hole.

7. The dual power transfer switch of claim 1, wherein: the support body comprises a left support connected with the main power switch, a right support connected with the standby power switch and a connecting frame located between the left support and the right support.

8. The dual power transfer switch of claim 7, wherein: the left bracket and the right bracket are respectively provided with a left shaft sleeve and a right shaft sleeve which are used for fixing the left shifting fork body and the right shifting fork body.

9. The dual power transfer switch of claim 1, wherein: and a protective cover is arranged on the outer side of the conversion mechanism.