CN216084638U

CN216084638U - Main and standby power supply switching mechanism

Info

Publication number: CN216084638U
Application number: CN202122797928.5U
Authority: CN
Inventors: 孙杰
Original assignee: Jiangsu Youpin Electric Co ltd
Current assignee: Jiangsu Youpin Electric Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-03-18
Anticipated expiration: 2031-11-15

Abstract

The utility model belongs to the technical field of electrical equipment, and particularly relates to a main/standby power supply switching mechanism. It includes: the first end of the first contact assembly is used for being connected with a main input power supply, the first end of the second contact assembly is used for being connected with a standby input power supply, the two switching devices are respectively arranged between the first end and the second end of the first contact assembly and the second contact assembly and used for opening and closing the two ends of the first contact assembly and the second contact assembly, the common terminal is connected with the second ends of the first contact assembly and the second contact assembly, and the common terminal is provided with a common end used for being connected with an output power supply. The utility model is used for solving the problem of poor and inflexible power supply switching effect.

Description

Main and standby power supply switching mechanism

Technical Field

The utility model belongs to the technical field of electrical equipment, and particularly relates to a main/standby power supply switching mechanism.

Background

The common power switching mechanism is used for one-way standby, and when common power fails suddenly or power is cut off, the standby power can be switched through the power switching mechanism, so that equipment can still run normally.

At present, the method for setting the contact mechanism of the main/standby power switch is as follows: the upper part of the input end of the shell is connected with a row of contacts for connecting with a main power supply, and the lower part of the input end of the shell is connected with a row of contacts for connecting with a standby power supply; the output end of the shell is also connected with two rows of contacts which are in one-to-one correspondence with the contacts at the input end, but the current power switching mechanism additionally utilizes a linkage mechanism to switch the main and standby circuits, after long-time operation, errors can be formed between the main and standby circuits, certain influence is caused on the switching of the power, the effect of the power switching which cannot be in place is unsatisfactory, manual adjustment is often needed, the switching mode is fixed, the replacement and maintenance need to be carried out integrally, and the power switching mechanism is high in cost and low in flexibility.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiments of the present application is to overcome the defects in the prior art, and provide a main/standby power switching mechanism, which is used for solving the problem of poor and inflexible power switching effect.

The technical scheme for solving the technical problems in the embodiment of the application is as follows: a master standby power switching mechanism, comprising:

the first end of the first contact assembly is used for accessing a main input power supply;

the first end of the second contact assembly is used for being connected with a standby input power supply;

the two switching devices are respectively arranged between the first ends and the second ends of the first contact assembly and the second contact assembly and are used for switching on and off the two ends of the first contact assembly and the second contact assembly;

and the common terminal is connected with the second ends of the first contact assembly and the second contact assembly and is provided with a common end for connecting an output power supply.

Compared with the prior art, the technical scheme has the following beneficial effects:

the two contact assemblies are respectively connected into a main input power supply and a standby input power supply, the other end connectors of the two contact assemblies are connected together through a common terminal and then connected out of the common terminal to an output power supply, meanwhile, on-off control over the two terminal assemblies is respectively completed in the two contact assemblies through the switching devices, the switching effect is good, the two switching devices respectively complete switching of a main circuit and a standby circuit, and switching is more flexible.

Further, the first contact assembly is structurally identical to the second contact assembly;

the first contact assembly includes: the two ends of the shell are respectively provided with a plurality of notches;

the straight contact is arranged in the notch at the first end of the shell in a matching mode and used for being connected with a main input power supply;

and the bent contacts are arranged in the notches of the second end of the shell in a matching manner, are in one-to-one correspondence with the straight contacts, and are connected with the public terminal.

The input power supply and the output power supply are respectively connected through the straight contact and the bent contact which are arranged oppositely, the bent contact is more convenient to be connected and installed with the public terminal, and the disassembly, assembly, maintenance and repair are convenient.

Furthermore, a limit step is arranged in the gap, and bayonets matched with the limit step are formed on the side edges of the straight contact and the bent contact.

Through setting up the bayonet socket on spacing step and the straight contact, fix the location that straight contact and curved contact can be better in the breach, guarantee that the inner end and the outer end of straight contact and curved contact keep flushing, can contact with auto-change over device simultaneously, improve the synchronism of switching.

Further, the switching device includes:

the sliding seat is arranged in the shell in a sliding manner;

the connecting contacts are arranged in the sliding seat at intervals, and two ends of each connecting contact are respectively used for being matched and connected with the straight contacts and the bent contacts;

the slider is slidable to connect or disconnect the straight contact and the bent contact through the connection contact.

Furthermore, the connecting contact comprises a first clamping head and a second clamping head which are arranged oppositely, and the first clamping head and the second clamping head are matched to clamp and contact the straight contact and the bent contact.

Furthermore, the inner ends of the straight contact and the bent contact face one side of the connecting contact to be provided with chamfers.

The chamfer angle arranged at the inner ends of the straight contact and the bent contact can enable the inner ends of the straight contact and the bent contact to be inserted between the first chuck and the second chuck of the connecting contact more conveniently, and the smooth degree of power supply access is improved.

Furthermore, a guide groove is formed in the top of the shell, and a guide block located in the guide groove is arranged on the sliding seat.

The guide grooves and the guide blocks which are matched with each other are utilized to ensure that the sliding seat drives the connecting contact to be connected with the straight contact and the bent contact according to a set sliding track, and the synchronism of connection and disconnection is ensured.

Further, be provided with the butt piece on the slide, the casing top be provided with the relative elasticity of butt piece resets, elasticity resets and is located guide way extending direction for exert elasticity towards the direction of disconnection.

Through butt piece and the elasticity piece that resets of mutual butt, the elasticity that utilizes the elasticity piece that resets can promote the slide toward the direction of disconnect for the disconnection process is more crisp, the accurate control of the switching of being convenient for.

Further, the first contact assembly and the second contact assembly are arranged oppositely in a mirror image mode, the first end portion of the first contact assembly is closer to the common terminal relative to the first end portion of the second contact assembly, and the first end of the first contact assembly and the first end of the second contact assembly are staggered.

The first end of the first contact assembly and the first end of the second contact assembly on the same side are staggered, so that the main power supply and the standby power supply can be conveniently connected to the first ends of the two contact assemblies, and interference cannot be formed between the main power supply and the standby power supply during connection and installation.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of the entire application of the present embodiment.

Fig. 2 is a schematic view of the overall structure of the first contact assembly and the switching device in fig. 1.

Fig. 3 is a schematic view of the internal structure of fig. 2.

Fig. 4 is a schematic view of the overall structure of the straight contact and the bent contact and the common terminal in the embodiment.

Fig. 5 is a schematic front view of the structure of fig. 4.

Reference numerals:

1. a first contact assembly;

101. a housing; 102. a straight contact; 103. bending the contact;

2. a second contact assembly;

3. a common terminal; 4. a common terminal;

5. a switching device;

6. a limiting step; 7. a bayonet;

8. a slide base;

9. a connection contact; 91. a first chuck; 92. a second chuck;

10. chamfering;

11. a guide groove; 12. a guide block;

13. a butting block; 14. an elastic reset piece.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. 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 this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Examples

As shown in fig. 1 to 5, an embodiment of the present invention provides a main/standby power switching mechanism, which includes: the first contact assembly, the second contact assembly, two switching devices and a common terminal.

As shown in fig. 1 and 4, the first end of the first contact assembly is used for accessing a main input power supply, the first end of the second contact assembly is used for accessing a standby input power supply, and the first ends and the second ends of the first contact assembly and the second contact assembly are opposite.

As shown in fig. 2, two switching devices are respectively disposed between the first end and the second end of the first contact assembly and the second contact assembly, and are used for opening and closing the two ends of the first contact assembly and the second contact assembly.

And the common terminal is connected with the second ends of the first contact assembly and the second contact assembly, and is provided with a common end for connecting an output power supply.

Specifically, the first contact assembly is identical in structure to the second contact assembly, wherein the first contact assembly comprises: the contact comprises a shell, a straight contact and a bent contact, wherein four notches are respectively formed in two ends of the shell.

Four straight contacts match set up in four breachs of casing first end, the wiring hole has been seted up to the straight contact outer end for access main input power, four curved contacts match set up in the breach of casing second end, four straight contacts and four curved contacts one-to-one, curved contact with public terminal is connected.

The second contact assembly and the first contact assembly are arranged below the first contact assembly in a mirror symmetry mode, and the straight contact at the first end of the first contact assembly and the straight contact at the first end of the second contact assembly are located on the same side and are respectively connected with a main power supply and a standby power supply.

As shown in fig. 3, a limit step is arranged in the gap, bayonets matched with the limit step are formed on the side edges of the straight contact and the bent contact, the bayonets of the straight contact and the bent contact are abutted and matched with the limit step in the gap, the inner ends of the straight contact and the bent contact are kept flush and consistent, the straight contact and the bent contact can be simultaneously contacted with a switching device, and the switching synchronism is improved.

The switching device includes: the sliding seat is arranged in the shell in a sliding mode and located between the straight contact and the bent contact, the connecting contacts are arranged on the sliding seat at intervals, two ends of each connecting contact are respectively used for being connected with the straight contact and the bent contact in a matched mode, and the sliding seat can slide to be connected with or disconnected from the straight contact and the bent contact through the connecting contacts.

Specifically, the connecting contact comprises a first chuck and a second chuck which are arranged oppositely, the first chuck and the second chuck are matched with each other to clamp and contact the straight contact and the bent contact, the first chuck and the second chuck are arranged at intervals up and down, the distance between the first chuck and the second chuck is consistent with the thickness of the straight contact and the thickness of the bent contact, and the first chuck and the second chuck can be attached to and clamped on two side surfaces of the inner ends of the first chuck and the second chuck during connection.

The inner ends of the straight contact and the bent contact face towards one side edge of the connecting contact, specifically, chamfers are arranged on the upper edge and the lower edge of one side of the connecting contact, the chamfers arranged at the inner ends of the straight contact and the bent contact can enable the inner ends of the straight contact and the bent contact to be inserted between a first chuck and a second chuck of the connecting contact more conveniently, and the smooth degree of power supply access is improved.

As shown in fig. 2 and 3, a guide groove is formed in the top of the housing, a guide block located in the guide groove is arranged on the slide, a slide groove matched with the slide is further formed in the bottom of the housing, the slide groove and the guide groove are in the same direction, and the slide is ensured to drive the connecting contact to be connected with the straight contact and the bent contact according to a preset sliding track by using the guide groove and the guide block which are matched with each other, so that the synchronism of connection and disconnection is ensured.

In this embodiment, be provided with the butt piece on the slide, the casing top be provided with the relative elasticity reset piece of butt piece, the butt piece is L type butt piece, and butt piece one end is connected with the slide, and it is relative with elasticity reset piece that the other end stretches out the guide way, elasticity reset piece is located guide way extending direction for exert elasticity towards the direction of disconnection, elasticity reset piece is realization such as shell fragment or pressure spring.

In this embodiment, as shown in fig. 5, the first contact assembly and the second contact assembly are arranged in a mirror-image opposite manner, the first end portion of the first contact assembly is closer to the common terminal than the first end portion of the second contact assembly, and the first end of the first contact assembly and the first end of the second contact assembly are staggered, specifically, the outer end of the straight contact of the upper first contact assembly extends out shorter, and the outer end of the straight contact of the lower second contact assembly extends out staggered, so that the wiring holes on the two contact assemblies are staggered, and therefore, the main and standby power supplies can be connected to the first ends of the two contact assemblies, and when being connected and installed, no interference is formed between the main and standby power supplies.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A master/slave power switching mechanism, comprising:

2. The active-standby power switching mechanism according to claim 1, wherein the first contact assembly is identical in structure to the second contact assembly;

3. The main/standby power switching mechanism according to claim 2, wherein a limit step is provided in the notch, and a bayonet matched with the limit step is formed on the side of the straight contact.

4. The master-slave power switching mechanism according to claim 2, wherein said switching means comprises:

the sliding seat is arranged in the shell in a sliding manner;

5. The active-standby power switching mechanism according to claim 4, wherein the connection contacts comprise a first clip and a second clip which are oppositely arranged, and the first clip and the second clip are matched to clamp and contact the straight contacts and the bent contacts.

6. The main/standby power switching mechanism according to claim 4, wherein the inner ends of the straight contacts and the bent contacts are provided with a chamfer toward one side of the connection contact.

7. The active-standby power switching mechanism according to claim 4, wherein a guide slot is formed at the top of the housing, and a guide block located in the guide slot is disposed on the sliding seat.

8. The main/standby power switching mechanism of claim 7, wherein the sliding seat is provided with an abutting block, the top of the housing is provided with an elastic resetting member opposite to the abutting block, and the elastic resetting member is located in the extending direction of the guide slot and is used for applying an elastic force in the disconnecting direction.

9. The active-standby power switching mechanism according to claim 1, wherein the first contact assembly and the second contact assembly are arranged in a mirror-image opposition manner, the first end portion of the first contact assembly is closer to the common terminal than the first end portion of the second contact assembly, and the first end of the first contact assembly and the first end of the second contact assembly are offset.