CN212725045U

CN212725045U - Power supply base of dual-power automatic transfer switch and dual-power automatic transfer switch

Info

Publication number: CN212725045U
Application number: CN202021256928.3U
Authority: CN
Inventors: 杨帅
Original assignee: Tianjin Kepaer Technology Co ltd
Current assignee: Tianjin Kepaer Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-16
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to the technical field of transfer switches, and discloses a power supply base of a dual-power automatic transfer switch, which comprises a power supply base body, wherein the power supply base body is inwards provided with a cavity structure, the two sides of the cavity structure are symmetrically provided with contact mounting grooves, the contact mounting grooves are used for mounting static contacts of multiple modes, and a positioning element and a limiting element are also arranged in the cavity; and an arc striking structure is arranged on one side of the power supply base body, which is far away from the cavity structure. The utility model discloses simple structure, the assembly is compact, sets up positioning element and spacing component on this power base, can effectively improve the qualification rate of assembly efficiency and assembly.

Description

Power supply base of dual-power automatic transfer switch and dual-power automatic transfer switch

Technical Field

The utility model relates to a change over switch technical field especially relates to dual supply automatic change over switch's power base and dual supply automatic change over switch.

Background

The dual-power automatic transfer switch is mainly used in an emergency power supply system and is a switching appliance for automatically switching a load circuit from one power supply to another (standby) power supply so as to ensure continuous and reliable operation of important loads. The dual-power automatic transfer switch is used for one way of standby power supply simply, and when common power fails or is in power failure, the common power supply is automatically switched into the standby power supply through the dual-power transfer switch (the standby power supply can also be supplied with power by a generator under small load), so that equipment can still normally operate. The UPS for the bank is also used for the most common elevators, fire control and monitoring, but the spare battery of the UPS is used for the bank.

The power supply base is a basic component for assembling the dual-power automatic transfer switch, and the structural trend of the power supply base determines the complexity of the assembly of the power supply automatic transfer switch. The existing power supply base used in the dual-power automatic transfer switch has a complex structure, so that the assembly process is complex and the assembly efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an aspect provides dual supply automatic transfer switch's power base, the device simple structure, the assembly is compact, and sets up positioning element and spacing component on this power base, can effectively improve the qualification rate of assembly efficiency and assembly.

In order to achieve the above object, the utility model provides a following technical scheme:

the power base of the dual-power automatic transfer switch comprises a power base body, wherein a cavity structure is inwards arranged on the power base body, contact mounting grooves are symmetrically formed in two sides of the cavity structure and used for mounting static contacts in multiple modes, and a positioning element and a limiting element are further arranged in the cavity; and an arc striking structure is arranged on one side of the power supply base body, which is far away from the cavity structure.

The utility model discloses a power base passes through mould injection moulding, its simple structure, and the assembly is compact, sets up positioning element and spacing component on this power base, can effectively improve the qualification rate of assembly efficiency and assembly.

As a preferred mode of a power supply base of the dual-power automatic transfer switch, the cavity structure is used for being a support provided with a limiting block, a moving contact and an insulating plate. The cavity structure is arranged according to the structural size of the integrated support, and the integrated support is only required to be embedded in the cavity in the assembling process after the cavity structure is arranged.

As a preferable mode of a power base of the dual-power automatic transfer switch, the bottom surface of the cavity structure is provided with a limiting convex rib along the length direction. The limiting convex rib is used for limiting the transverse displacement of the bracket in the cavity structure along the width direction, and the structural stability of the change-over switch is improved.

As an optimal mode of a power base of the dual-power automatic transfer switch, limiting tables are inwards arranged at two ends of an opening of the cavity structure. This spacing platform is used for cooperating with the power protection cover of power base top, in power protection cover and power base installation for realize the location to the power protection cover, and spacing after the installation, ensure that the connection of power protection cover is stable.

As a preferred mode of a power base of the dual-power automatic transfer switch, the limiting element is a limiting groove arranged on the bottom surface of the cavity structure, and the limiting groove is matched with a limiting block to clamp the support. The limiting groove is convenient for mounting and positioning the support, and meanwhile, because only one group of limiting grooves are arranged on the bottom surface of the cavity structure, the reverse mounting of the support can be effectively avoided, and the assembling accuracy is improved.

As a preferable mode of the power base of the dual power automatic transfer switch, the positioning element is a positioning through hole penetrating through the bottom surface of the cavity structure. The positioning through hole is used for being matched with a fixing piece on an assembly tool to realize positioning and clamping in the process of assembling the power supply base so as to facilitate the assembly of the power supply base, the number of the fixing pieces is generally selected according to the use requirement, and if a 4-pole change-over switch is assembled, 8 fixing pieces are needed to be used for positioning; when a 3-pole change-over switch is assembled, 6 fixing pieces are needed for positioning; to assemble a 2-pole transfer switch, 4 fixtures are used for positioning.

As a preferred mode of the power base of the dual-power automatic transfer switch, the shape of the contact mounting groove is adapted to the structure of the static contacts, the contact mounting grooves are arranged at equal intervals, different numbers of static contacts are generally assembled in the contact mounting grooves according to the use requirements, so that transfer switches with different electrodes are formed, the power supply requirements of different modes can be realized by adopting one power base, and the practicability is high. As a common 8 static contacts form 4 poles; 6 static contacts form 3 poles, and 4 static contacts form 2 poles.

As a preferable mode of the power base of the dual power automatic transfer switch, the horizontal plane of the contact mounting groove is lower than the horizontal plane of the power base body. After the static contact is assembled, the static contact is parallel and level to the horizontal plane where the power base body is located, so that the installation of a power protection cover is facilitated, and the stability and the tightness of the structure are guaranteed.

As an optimal mode of a power base of the dual-power automatic transfer switch, the arc striking structure comprises a plurality of arc striking grooves, the arc striking grooves are arranged in a bent mode, so that the transmission path of the fire arc can be effectively prolonged, the fire arc completely disappears when being transmitted to an outlet position, the electricity safety is ensured, and the number of the arc striking grooves corresponds to the number of the contact mounting grooves and are respectively led out from the positions of the contact mounting grooves. In addition, the arc striking groove is directly formed on the power base body in a die pressing mode, and compared with the prior art, the arc striking groove saves the arrangement of an arc striking cover, reduces installation parts and simplifies the assembly process.

The utility model discloses another aspect provides dual supply automatic transfer switch, dual supply automatic transfer switch includes as above power base.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1) the utility model has simple structure and convenient installation; the bottom surface of the cavity structure is provided with the limiting groove, so that the reliable limiting effect can be achieved for the assembly of the support, the reverse assembly of the support can be effectively avoided, and the assembly accuracy is improved. In addition, the bottom surface of the cavity structure is provided with a limiting convex rib along the length direction, and the limiting convex rib is used for limiting the transverse displacement of the bracket in the cavity structure along the width direction so as to improve the structural stability of the installation of the change-over switch.

2) The arc striking groove of the utility model is arranged in a bending way, which can effectively prolong the transmission path of the fire arc, so that the fire arc can completely disappear when being transmitted to the exit position, and the safety of power utilization is ensured; and the number of the arc striking grooves corresponds to that of the contact mounting grooves, and the arc striking grooves are respectively led out from the positions of the contact mounting grooves. In addition, the arc striking groove is directly formed on the power base body in a die pressing mode, and compared with the prior art, the arc striking groove saves the arrangement of an arc striking cover, reduces installation parts and simplifies the assembly process.

Drawings

Fig. 1 is a schematic structural view of a power supply base of the dual power automatic transfer switch of the present invention;

fig. 2 is a top view of the power base of the dual power automatic transfer switch of the present invention;

fig. 3 is a schematic structural view of another view angle of the power base of the present invention;

fig. 4 is a bottom view of the power base of the present invention from another perspective;

FIG. 5 is a front view of the power base of the present invention;

fig. 6 is a schematic structural view of the power supply base applied to the dual power automatic transfer switch of the present invention;

fig. 7 is a top view of the power base of the present invention applied to a dual power automatic transfer switch;

fig. 8 is an axial sectional view taken along line a-a of fig. 7.

In the figure: the power base comprises a power base body 100, a cavity structure 1, a limiting convex rib 11, a limiting table 12, a contact mounting groove 2, a positioning element 3, a positioning through hole 31, a limiting element 4, a limiting groove 41, an arc striking structure 5 and an arc striking groove 51.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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, other embodiments obtained by a person of ordinary skill in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

The embodiment of the utility model provides a one:

referring to fig. 1-5, the utility model provides a power base of dual power automatic transfer switch, including power base body 100, power base body 100 has a die cavity structure 1 inwards seted up, the bilateral symmetry of die cavity structure 1 is provided with contact mounting groove 2, contact mounting groove 2 is used for installing the static contact of multiple mode, still be provided with locating element 3 and spacing element 4 in the die cavity; an arc striking structure 5 is arranged on one side of the power base body 100, which is far away from the cavity structure 1.

The utility model discloses a power base passes through mould injection moulding, its simple structure, and the assembly is compact, sets up positioning element 3 and spacing component 4 on this power base, can effectively improve the qualification rate of assembly efficiency and assembly.

In this embodiment, the cavity structure 1 is used to form a support on which a limiting block, a moving contact and an insulating plate are mounted. The cavity structure 1 is arranged according to the structure size of the integrated support, and the integrated support is only required to be embedded in the cavity in the assembling process after the cavity structure is arranged, so that the assembling process is simple.

In this embodiment, the bottom surface of the cavity structure 1 is provided with a limiting convex rib 11 along the length direction. The limiting convex rib 11 is used for limiting the transverse displacement of the bracket in the cavity structure 1 along the width direction, and the structural stability of the installation of the change-over switch is improved.

In this embodiment, two ends of the opening of the cavity structure 1 are inwardly provided with limiting tables 12. This spacing platform 12 is used for cooperating with the power protection cover of power base top, in power protection cover and power base installation for realize the location to the power protection cover, and spacing after the installation, ensure that the connection of power protection cover is compact and stable.

In this embodiment, the limiting element 4 is a limiting groove 41 disposed on the bottom surface of the cavity structure 1, and the limiting groove 41 cooperates with a limiting block to clamp the bracket. This spacing recess 41 is convenient for the installation location of support, simultaneously because only be provided with a set of spacing recess 41 in the cavity structure bottom surface, consequently also can effectively avoid the support dress to turn over, improves the accuracy of assembly.

In the present embodiment, the positioning element 3 is a positioning through hole 31 penetrating the bottom surface of the cavity structure 1. The positioning through hole 31 is used for matching with a fixing piece on an assembly fixture to realize positioning and clamping in the process of assembling the power supply base so as to facilitate the assembly of the power supply base, the number of the fixing pieces is generally selected according to the use requirement, and if a 4-pole change-over switch is assembled, 8 fixing pieces are needed to be used for positioning; when a 3-pole change-over switch is assembled, 6 fixing pieces are needed for positioning; to assemble a 2-pole transfer switch, 4 fixtures are used for positioning.

The positioning through hole 31 is disposed corresponding to the contact mounting groove 2, so that the contact mounting groove 2 is completely fixed, and the assembly of the static contact is ensured.

In this embodiment, the shape of the contact mounting groove 2 is adapted to the structure of the fixed contacts, and the contact mounting grooves 2 are arranged at equal intervals, and different numbers of fixed contacts are generally assembled in the contact mounting groove 2 according to the use requirements, so as to form a change-over switch with different electrodes. As a common 8 static contacts form 4 poles; 6 static contacts form 3 poles, and 4 static contacts form 2 poles.

In this embodiment, the horizontal plane of the contact mounting groove 2 is lower than the horizontal plane of the power base body 100. After the static contact is assembled, the static contact is flush with the horizontal plane where the power base body 100 is located, so that the installation of a power protection cover is facilitated, and the stability and the tightness of the structure are guaranteed.

In this embodiment, the arc striking structure 5 includes a plurality of arc striking grooves 51, the arc striking grooves 51 are arranged in a bent manner, so that the transmission path of the fire arc can be effectively extended, the fire arc completely disappears when being transmitted to the exit position, the electricity safety is ensured, and the number of the arc striking grooves 51 corresponds to the number of the contact mounting grooves 2, and the arc striking grooves are respectively led out from the positions of the contact mounting grooves 2. In addition, the arc striking groove 51 is directly formed on the power base body 100 by die pressing, and compared with the prior art, the arrangement of an arc striking cover is omitted, the number of installation parts is reduced, and the assembly process is simplified.

Wherein, the starting end of the arc starting groove 51 is communicated with the positioning through hole 31, and the width of the starting end of the arc starting groove 51 is larger than that of the ending end.

The embodiment of the utility model provides a two:

referring to fig. 6-8, another aspect of the present invention provides a dual power automatic transfer switch including a power base as described above. In practical use, the power supply base is used for both the common power supply and the standby power supply, only the common power supply and the standby power supply are connected with the unused static contacts for distinguishing, and in the assembling process, the common power supply and the standby power supply are assembled back to back and are separated by the insulating plate in the middle.

The utility model discloses a theory of operation and working process as follows:

the power supply base is a power supply base which is universal for a common power supply and a standby power supply, only different static contacts (copper silver plating) are required to be installed in the contact installation grooves 2 according to different requirements, and the power supply base does not need to be provided with a common power supply base and a standby power supply base, so that the practicability of the product is high; in addition, in the assembly process of the power supply base, the positioning through hole 31 is aligned with the fixing piece on the assembly fixture to be inserted to realize positioning and fixing, then the static contact is assembled and fixed according to needs, then the bracket and the rotating shaft are installed, the limiting block on the bracket is matched with the limiting groove 41 to be clamped and fixed, and finally the sampling line is connected, so that the assembly process is simple.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention. The present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope of the present invention, and in short, the scope of protection is defined by the claims and their equivalents.

Claims

1. Dual supply automatic transfer switch's power base, its characterized in that: the power supply base comprises a power supply base body (100), wherein a cavity structure (1) is inwards arranged on the power supply base body (100), contact mounting grooves (2) are symmetrically formed in two sides of the cavity structure (1), the contact mounting grooves (2) are used for mounting static contacts of various modes, and a positioning element (3) and a limiting element (4) are further arranged in the cavity; an arc striking structure (5) is arranged on one side, far away from the cavity structure (1), of the power base body (100).

2. The power base of the dual power automatic transfer switch of claim 1, wherein: the die cavity structure (1) is used for placing a support provided with a limiting block, a moving contact and an insulating plate.

3. The power base of the dual power automatic transfer switch of claim 2, wherein: and a limiting convex rib (11) is arranged on the bottom surface of the cavity structure (1) along the length direction.

4. The power base of the dual power automatic transfer switch of claim 2, wherein: limiting tables (12) are inwards arranged at two ends of the opening of the cavity structure (1).

5. The power base of the dual power automatic transfer switch of claim 2, wherein: the limiting element (4) is a limiting groove (41) formed in the bottom surface of the cavity structure (1), and the limiting groove (41) is matched with a limiting block to clamp the support.

6. The power base of the dual power automatic transfer switch of claim 1, wherein: the positioning element (3) is a positioning through hole (31) which is arranged on the bottom surface of the cavity structure (1) in a penetrating mode.

7. The power base of the dual power automatic transfer switch of claim 1, wherein: the shape of the contact mounting groove (2) is adapted to the structure of the static contact, and the contact mounting grooves (2) are arranged at equal intervals.

8. The power base of the dual power automatic transfer switch of claim 7, wherein: the horizontal plane where the contact mounting groove (2) is located is lower than the horizontal plane where the power base body (100) is located.

9. The power base of the dual power automatic transfer switch of claim 1, wherein: the arc striking structure (5) comprises a plurality of arc striking grooves (51), the arc striking grooves (51) are arranged in a bending mode, and the number of the arc striking grooves (51) corresponds to the number of the contact mounting grooves (2).

10. Dual supply automatic transfer switch, its characterized in that: the dual power automatic transfer switch comprises the power base of any one of the preceding claims.