CN219778731U

CN219778731U - Dual-power transfer switch shell

Info

Publication number: CN219778731U
Application number: CN202321269814.6U
Authority: CN
Inventors: 林德松; 李培; 晋娜; 唐成江
Original assignee: Chengdu Huomusi Electric Co ltd
Current assignee: Chengdu Huomusi Electric Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-09-29
Anticipated expiration: 2033-05-24

Abstract

The utility model relates to the technical field of transfer switches and provides a double-power transfer switch shell which comprises a first shell, a second shell and a plurality of connecting structures, wherein the first shell and the second shell jointly form the shell of the double-power transfer switch, the connecting structures are sequentially arranged along the circumferential direction of the shell to connect the first shell and the second shell, each connecting structure comprises a plug groove and a plug piece, each plug groove is arranged on the first shell, each plug piece is arranged on the second shell, each plug piece comprises two plug parts which are oppositely arranged, each plug part extends along the vertical direction and is provided with a clamping part, and each plug groove is arranged in each plug groove and corresponds to each clamping part of each plug part. According to the utility model, the plugging groove and the plug connector are arranged as the connecting structure, so that the structure after the first shell and the second shell are connected belongs to the clamping structure, the whole disassembly and assembly process of the second shell can be completed without using auxiliary tools such as a screwdriver, and the disassembly and assembly process of the second shell is simplified.

Description

Dual-power transfer switch shell

Technical Field

The utility model relates to the technical field of transfer switches, in particular to a double-power transfer switch shell.

Background

The double-power transfer switch is simply a switching device capable of automatically switching a load circuit to a backup power supply when an abnormal condition (such as a fault or a power failure) occurs in a main power supply (typically, a commercial power supply), so that the backup power supply is used to continuously supply power to the load circuit, and is widely used in various fields because the switching device can ensure continuous power supply to the load circuit.

The dual power transfer switch is widely used, but is mostly composed of a housing, a driving mechanism, an operating mechanism, etc., and generally, the driving mechanism for implementing circuit switching is disposed inside the housing to be protected by the housing, and the operating mechanism for switching among different operation modes (such as an automatic mode, a manual mode, and a locking mode) is exposed outside the housing to facilitate switching of the operation modes of the dual power transfer switch.

Considering that the dual-power transfer switch may have a fault in the actual service process and needs to be overhauled, the shell of the existing dual-power transfer switch adopts the design of an upper shell and a lower shell, namely the driving mechanism is arranged inside the lower shell, and part of the driving mechanism is exposed out of the lower shell.

However, in the existing dual power transfer switch designed by adopting an upper shell and a lower shell, the upper shell and the lower shell are generally connected through fasteners such as screws, so that the upper shell can be assembled and disassembled only by aid of auxiliary tools such as screwdrivers. Through searching, the Chinese patent application No. 202123252572.3 discloses a dual-power transfer switch shell capable of realizing reliable connection of an upper shell and a lower shell without using screws, and the connecting structure adopted by the shell is a threaded connecting structure substantially even though auxiliary tools are not needed when the upper shell is assembled and disassembled, so that the assembly and disassembly processes of the upper shell are still complicated.

Disclosure of Invention

The utility model aims to provide a double-electric change-over switch shell, which at least solves the technical problems that the existing double-power change-over switch adopting an upper shell and a lower shell design can be assembled and disassembled by means of auxiliary tools, and the assembly and disassembly processes are complicated.

The aim of the utility model is achieved by the following technical scheme:

the double-power-supply change-over switch shell comprises a first shell, a second shell and a plurality of connecting structures, wherein the first shell and the second shell together form the shell of the double-power-supply change-over switch, the connecting structures are sequentially arranged along the circumferential direction of the shell to connect the first shell and the second shell, and the connecting structures comprise plug grooves and plug connectors;

the plug-in groove is arranged on the first shell, and the plug connector is arranged on the second shell and can be inserted into the plug-in groove;

the plug connector comprises two oppositely arranged plug parts, wherein the two plug parts extend along the vertical direction and are provided with clamping parts, the clamping parts of the two plug parts extend along the horizontal direction towards opposite directions, clamping grooves which are in one-to-one correspondence with the clamping parts of the two plug parts are formed in the plug grooves, and the clamping grooves are communicated with the plug grooves;

after the plug connector is inserted into the plug groove, the clamping parts of the two plug connector parts are respectively clamped in the corresponding clamping grooves.

In some possible embodiments, the first housing has a first engagement surface and the second housing has a second engagement surface, the first engagement surface of the first housing being in contact with the second engagement surface of the second housing when the first housing and the second housing together comprise the housing;

the inserting groove is arranged on the outer wall of the first shell, and extends in the vertical direction by taking the first joint surface as a starting point;

the plug connector is arranged on the second joint surface of the second shell.

In some possible embodiments, a first inclined surface corresponding to the clamping parts of the two plugging parts is arranged on one side, close to the first joint surface, of the plugging groove, and the first inclined surface extends towards the direction, close to the plugging groove, with the first joint surface as a starting point;

the clamping parts of the two plugging parts are provided with second inclined planes which are matched with the corresponding first inclined planes.

In some possible embodiments, when the plug connector is inserted into the plug slot, the outer side walls of the two plug connectors are both in the same plane with the corresponding outer wall of the second housing.

In some possible embodiments, the outer side walls of the two plugging portions are both provided with an operation portion protruding from the outer wall of the second housing.

In some possible embodiments, the opposite sides of the operating parts of the two plugging parts are provided with pressing grooves.

In some possible embodiments, the first joint surface of the first housing is provided with a sealing groove, the sealing groove is closed after extending along the circumferential direction of the first housing, and a sealing gasket is arranged in the sealing groove;

the second joint surface of the second housing is provided with a sealing portion adapted to the sealing groove.

In some possible embodiments, the first housing, the second housing, and the plug are all made of an insulating material.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

according to the utility model, the plug groove and the plug piece are arranged as the connecting structure, so that the structure after the first shell and the second shell are connected belongs to the clamping structure, the whole disassembly and assembly process of the second shell can be completed without using auxiliary tools such as a screwdriver, the disassembly and assembly process of the second shell is simplified, and the disassembly and assembly efficiency of the second shell is improved.

Meanwhile, through setting up two grafting portions that all have joint portion on the plug connector, and the joint portion of two grafting portions deviates from each other and sets up, can effectively improve the reliability after first casing and the second casing are connected.

Drawings

Fig. 1 is a schematic structural diagram of a dual power transfer switch provided by the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic structural view of a first housing according to the present utility model;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a schematic structural view of a second housing according to the present utility model;

fig. 6 is a schematic structural diagram of a plug connector provided by the present utility model.

Icon: 10-first housing, 10 a-first joint face, 10 b-seal groove, 10 c-gasket, 20-second housing, 20 a-second joint face, 20 b-seal portion, 30-connecting structure, 31-plug groove, 31 a-clip groove, 31 b-first inclined face, 32-plug piece, 32 a-plug portion, 32 b-clip portion, 32 c-operating portion, 32 d-pressing groove, 32 e-second inclined face.

Detailed Description

The structure of the existing dual-power transfer switch designed by adopting an upper shell and a lower shell is approximately shown in fig. 1, the shell of the dual-power transfer switch consists of an upper shell and a lower shell, wherein a notch is formed in the top of the upper shell, and an operating mechanism of the dual-power transfer switch is exposed to the outside through the notch in the top of the upper shell so as to switch the working mode of the dual-power transfer switch through the operating mechanism when in use. And the driving mechanism of the dual-power transfer switch is arranged in the lower shell, and at the moment, the wiring port in the driving mechanism is exposed to the outside through the corresponding opening on the lower shell so as to facilitate wiring.

Considering the shell of the existing dual-power transfer switch adopting the design of an upper shell and a lower shell, the upper shell and the lower shell are mostly connected by adopting screws as fasteners, and the upper shell is inconvenient to assemble and disassemble in actual use.

Therefore, referring to fig. 1 to 6, the present embodiment provides a dual power switch housing, so as to simplify the assembly and disassembly process of the upper housing by improving the connection manner between the upper housing and the lower housing that form the dual power switch housing, and facilitate the quick assembly and disassembly of the upper housing in practical use.

Specifically, in combination with what is shown in fig. 1, the dual power transfer switch housing includes a first housing 10, a second housing 20, and a plurality of connection structures 30, wherein the first housing 10 and the second housing 20 together constitute a housing of the dual power transfer switch, and the plurality of connection structures 30 are sequentially disposed along a circumferential direction of the housing to connect the first housing 10 and the second housing 20.

It will be appreciated that, according to the present embodiment, the first housing 10 and the second housing 20 are rectangular structures, so, as shown in fig. 3 and 5, the number of the connection structures 30 is four, and the four connection structures 30 are respectively disposed on the four sides of the first housing 10 and the second housing 20, so as to ensure that the four sides of the first housing 10 and the second housing 20 can be reliably connected together by the corresponding connection structures 30, and of course, only one connection structure 30 may be disposed on each of the two opposite sides of the first housing 10 and the second housing 20 in practical implementation, so long as the first housing 10 and the second housing 20 can be reliably connected together.

In order to achieve the quick connection between the first housing 10 and the second housing 20, the connection structure 30 in the present embodiment includes a socket 31 and a plug 32, where, in combination with what is shown in fig. 2, the socket 31 is disposed on the first housing 10, and the plug 32 is disposed on the second housing 20 and can be inserted into the socket 31.

In this embodiment, the first housing 10 may be a lower housing that forms a dual-power switch housing, or may be an upper housing that forms a dual-power switch housing, and when the first housing 10 is a lower housing, the second housing 20 refers to an upper housing that forms a dual-power switch housing, whereas when the first housing 10 is an upper housing, the second housing 20 refers to a lower housing that forms a dual-power switch housing.

On this basis, the installation positions of the plug groove 31 and the plug piece 32 constituting the connection structure 30 are interchangeable in this embodiment, specifically, the plug groove 31 may be provided on either the lower case constituting the double power transfer switch case or the upper case constituting the double power transfer switch case, and when the plug groove 31 is provided on the lower case constituting the double power transfer switch case, the plug piece 32 is correspondingly provided on the upper case constituting the double power transfer switch case, whereas when the plug groove 31 is provided on the upper case constituting the double power transfer switch case, the plug piece 32 is correspondingly provided on the lower case constituting the double power transfer switch case.

That is, in practical implementation, the plug groove 31 and the plug piece 32 that constitute the connection structure 30 may be provided on the upper case and the lower case that constitute the dual power conversion switch independently of each other, and in order to facilitate understanding of the technical solution provided in this embodiment, the first case 10 is taken as the lower case that constitutes the dual power conversion switch in this embodiment, and in this case, as shown in fig. 1 and 2, the plug groove 31 is provided on the lower case that constitutes the dual power conversion switch case, and the plug piece 32 is provided on the upper case that constitutes the dual power conversion switch case. In order to ensure the safety of the dual power transfer switch, the first housing 10, the second housing 20 and the plug connector 32 in this embodiment are made of insulating materials, and more specifically, the plug connector 32 is made of insulating materials (such as plastics) with a certain elastic deformation capability.

Further, in conjunction with the content shown in fig. 6, the plug connector 32 forming the connection structure 30 includes two opposite plug portions 32a, where the two plug portions 32a have a certain elastic deformation capability, the two plug portions 32a extend in a vertical direction and form a clamping portion 32b, the clamping portions 32b of the two plug portions 32a extend in opposite directions in a horizontal direction, that is, the clamping portions 32b of the two plug portions 32a deviate from each other, at this time, as shown in fig. 4, clamping grooves 31a corresponding to the clamping portions 32b of the two plug portions 32a one to one are formed in the plug grooves 31, and the clamping grooves 31a are communicated with the plug grooves 31.

Based on the above arrangement, when the first casing 10 and the second casing 20 need to be connected, only the plug connector 32 provided on the second casing 20 is required to be corresponding to the corresponding plug groove 31 on the first casing 10, then the second casing 20 can be moved vertically downwards to enable the plug connector 32 to be inserted into the corresponding plug groove 31, in this process, the two plug connector 32a are enabled to have certain elastic deformation and be mutually close under the limiting action of the plug groove 31 by the clamping portions 32b on the two plug connector 32a, when the plug connector 32 moves to the two plug connector 32a to be aligned with the corresponding clamping groove 31a in the plug groove 31, the two plug connector 32a will be restored to the initial state under the action of the elastic deformation force, at this time, as shown in fig. 2, the two plug connector 32a are mutually separated, and the clamping portions 32b of the two plug connector 32a are respectively clamped in the corresponding clamping grooves 31a, so that reliable connection of the first casing 10 and the second casing 20 is realized.

On the contrary, when the second housing 20 needs to be disassembled, only the two plugging portions 32a of the plugging element 32 need to be pressed, so that the two plugging portions 32a are elastically deformed again to be close to each other, and the clamping portions 32b of the two plugging portions 32a are withdrawn from the corresponding clamping grooves 31a in the plugging grooves 31, so that the second housing 20 can be taken out upwards, and the operation is simple and convenient.

It can be seen that, in this embodiment, by improving the structure of the connection structure 30 for connecting the first housing 10 and the second housing 20, specifically, by setting the plugging slot 31 and the plugging member 32 as the connection structure 30, the structure after the first housing 10 and the second housing 20 are connected belongs to the clamping structure, and the whole assembly and disassembly process of the second housing 20 can be completed without using an auxiliary tool such as a screwdriver, thereby simplifying the assembly and disassembly process of the second housing 20 and helping to improve the assembly and disassembly efficiency of the second housing 20. Meanwhile, by providing two plugging portions 32a each having a locking portion 32b on the plug 32, and the locking portions 32b of the two plugging portions 32a being disposed apart from each other, the reliability of the first housing 10 and the second housing 20 after connection can be effectively improved.

On the other hand, in order to avoid an increase in the volume of the double power conversion switch housing constituted when the first housing 10 and the second housing 20 are connected together due to the presence of the insertion groove 31 and the insertion piece 32, the present embodiment further defines the arrangement positions of the insertion groove 31 and the insertion piece 32.

Specifically, as shown in fig. 3 and 5, the first housing 10 has a first joint surface 10a, and the second housing 20 has a second joint surface 20a, and when the first housing 10 and the second housing 20 together constitute a housing, the first joint surface 10a of the first housing 10 is in contact with the second joint surface 20a of the second housing 20. Note that, the first housing 10 according to the present embodiment refers to a lower housing constituting a double power conversion switch, the second housing 20 refers to an upper housing constituting a double power conversion switch, and therefore, the first joint surface 10a refers to a top surface of the first housing 10, and the second joint surface 20a refers to a bottom surface of the second housing 20.

At this time, as shown in fig. 3, the plugging groove 31 is disposed on the outer wall of the first housing 10, and the plugging groove 31 extends in the vertical direction with the first joint surface 10a as a starting point, that is, the plugging groove 31 extends in the vertical direction with the top surface of the first housing 10 as a starting point, as shown in fig. 5, the plugging element 32 is correspondingly disposed on the second joint surface 20a of the second housing 20, that is, the plugging element 32 is disposed at the bottom of the second housing 20.

So set up, when first casing 10 and second casing 20 are connected, and the plug connector 32 that sets up on the second casing 20 inserts in the jack groove 31 that corresponds on the first casing 10, plug connector 32 will be held in the jack groove 31 that corresponds on the first casing 10 entirely, and still further, as shown in fig. 1, when plug connector 32 inserts in jack groove 31, the lateral wall of two grafting portion 32a all is in the coplanar with the outer wall that the second casing 20 corresponds, that is, when first casing 10 and second casing 20 are connected together, two grafting portion 32a of plug connector 32 do not protrude in the circumference lateral wall of first casing 10 and second casing 20, on the basis of realizing optimizing the volume of dual power change-over switch shell, the aesthetic property of dual power change-over switch shell has been improved.

At this time, in order to facilitate the later removal of the second housing 20, with continued reference to fig. 6, the outer side walls of the two plugging portions 32a are provided with operation portions 32c protruding from the outer wall of the second housing 20, and opposite sides of the operation portions 32c of the two plugging portions 32a are provided with pressing grooves 32d, that is, as shown in fig. 2, when the plugging member 32 is completely inserted into the corresponding plugging groove 31, the operation portions 32c provided on the two plugging portions 32a protrude from the outer wall of the second housing 20, so that the subsequent removal of the second housing 20 is facilitated by pressing the operation portions 32c on the two plugging portions 32a, so that the clamping portions 32b of the two plugging portions 32a are retracted from the corresponding clamping grooves 31 a.

Meanwhile, in order to facilitate the plug connector 32 provided on the second housing 20 to be inserted into the corresponding plug slot 31 on the first housing 10 more smoothly, with continued reference to fig. 4, a first inclined surface 31b corresponding to the clamping portions 32b of the two plug portions 32a is provided on one side of the plug slot 31 near the first joint surface 10a, the first inclined surface 31b extends from the first joint surface 10a to a direction near the plug slot 31, that is, the plug slot 31 forms a flaring structure on one side near the first joint surface 10a, and correspondingly, with continued reference to fig. 6, the clamping portions 32b of the two plug portions 32a are provided with a second inclined surface 32e corresponding to the corresponding first inclined surface 31 b.

Based on this setting, when the plug 32 is inserted into the corresponding plug slot 31, the second inclined surfaces 32e provided on the clamping portions 32b of the two plug portions 32a will first contact with the corresponding first inclined surfaces 31b in the plug slot 31, under the guidance of the first inclined surfaces 31b in the plug slot 31, the plug 32 can more smoothly enter the plug slot 31, and as the plug 32 is inserted into the plug slot 31 downwards, under the restriction of the first inclined surfaces 31b in the plug slot 31, the two plug portions 32a will be elastically deformed and close to each other, that is, when the second housing 20 is installed, the two plug portions 32a of the plug 32 can be elastically deformed and close to each other without applying an external force to the two plug portions 32a of the plug 32 alone, so as to facilitate the quick installation of the second housing 20.

In addition, the present embodiment adds a sealing structure between the second housing 20 and the first housing 10, considering that the sealing performance between the second housing 20 and the first housing 10 is also important when the second housing 20 is mounted on the first housing 10.

Specifically, as shown in fig. 3, the first joint surface 10a of the first housing 10 is provided with a seal groove 10b, the seal groove 10b is closed after extending along the circumferential direction of the first housing 10, a gasket 10c is provided in the seal groove 10b, and correspondingly, as shown in fig. 5, the second joint surface 20a of the second housing 20 is provided with a seal portion 20b adapted to the seal groove 10 b.

So set up, when second casing 20 installs on first casing 10, the sealing part 20b that sets up on second casing 20 will insert in the seal groove 10b on first casing 10, and when second casing 20 passes through plug connector 32 and reliably connects with first casing 10, sealing part 20b on second casing 20 can compress tightly the sealed pad 10c in seal groove 10b, just has realized the reliable seal between second casing 20 and the first casing 10.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a dual power change-over switch shell, includes first casing, second casing and a plurality of connection structure, first casing with the second casing constitutes the shell of dual power change-over switch jointly, a plurality of connection structure sets gradually along the circumference of shell in order to connect first casing with the second casing, its characterized in that, connection structure includes grafting groove and plug connector;

2. The dual power transfer switch housing of claim 1, wherein said first housing has a first engagement surface and said second housing has a second engagement surface, said first engagement surface of said first housing being in contact engagement with said second engagement surface of said second housing when said first housing and said second housing together comprise said housing;

the plug connector is arranged on the second joint surface of the second shell.

3. The dual power transfer switch housing as claimed in claim 2, wherein a first inclined surface corresponding to the clamping parts of the two plugging parts is provided on a side of the plugging groove adjacent to the first joint surface, and the first inclined surface extends in a direction approaching to the plugging groove with the first joint surface as a starting point;

4. The dual power transfer switch housing of claim 2, wherein when said plug is inserted into said plug slot, the outer sidewalls of both of said plug portions are in the same plane as the corresponding outer walls of said second housing.

5. The dual power transfer switch housing as claimed in claim 4, wherein outer side walls of both the plug-in parts are provided with operation parts protruding from outer walls of the second housing.

6. The dual power transfer switch housing as claimed in claim 5, wherein pressing grooves are formed on opposite sides of the operation portions of the two plugging portions.

7. The dual power transfer switch housing of claim 2, wherein the first engagement surface of the first housing is provided with a seal groove, the seal groove is closed after extending in a circumferential direction of the first housing, and a gasket is disposed in the seal groove;

8. The dual power transfer switch housing of claim 1, wherein said first housing, said second housing and said plug are each formed of an insulating material.