CN216648110U

CN216648110U - Interlocking device and contactor assembly with same

Info

Publication number: CN216648110U
Application number: CN202123359272.5U
Authority: CN
Inventors: 杨云飞; 顾园; 李为为; 李新叶; 郑云
Original assignee: Delixi Electric Co Ltd
Current assignee: Delixi Electric Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-31
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses an interlocking device and a contactor assembly with the interlocking device, wherein the interlocking device comprises a shell main body and a mounting structure arranged in the shell main body; the mounting structure comprises an operation part and a clamping part, at least part of the operation part is exposed out of the shell main body, the clamping part extends out of the shell main body from an opening of the shell main body, and the clamping part is driven to move through the exposed part of the operation part to be connected with a part to be mounted. The mounting structure comprises a sliding component, the operating part and the clamping part are arranged on the sliding component, and the sliding component can move inwards relative to the shell main body through the exposed part of the operating part so as to drive the clamping part to be connected with the to-be-mounted part. The structural design of the interlocking device can realize the installation with the contactor without the help of tools, and the interlocking device is convenient and quick.

Description

Interlocking device and contactor assembly with same

Technical Field

The utility model belongs to the technical field of low-voltage electricity, and particularly relates to an interlocking device and a contactor assembly with the same.

Background

The main purpose of the AC contactor is to control the start, stop and forward and reverse operation of the AC motor. In a control apparatus in which an ac motor is operated reversibly, it is necessary to provide an interlock device for preventing a power supply short-circuit accident caused by simultaneous closing of two contactors, i.e., to connect two contactors through one interlock device.

The structural design of the existing interlocking device often needs an external tool when the existing interlocking device is installed with a contactor, so that the installation efficiency and the installation convenience are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an interlocking device and a contactor assembly with the interlocking device.

In order to solve the above technical problems, the present invention provides an interlock device, including a housing main body and a mounting structure mounted in the housing main body; the mounting structure comprises an operation part and a clamping part, at least part of the operation part is exposed out of the shell main body, the clamping part extends out of the shell main body from an opening of the shell main body, and the clamping part is driven to move through the exposed part of the operation part to be connected with a part to be mounted.

The utility model discloses an interlock that provides has following technological effect: the interlocking device is structurally characterized in that at least part of the operation part of the mounting structure is exposed outside the shell main body, when the mounting part is assembled with the contactor in a waiting mode, an operator can directly and manually push the operation part to drive the clamping part to move so as to be connected with the mounting part to be mounted, tools are not needed, and the mounting is convenient and fast to mount.

As mentioned above, the mounting structure includes a sliding component, the operating portion and the engaging portion are both disposed on the sliding component, and the sliding component is moved inward relative to the housing body by the exposed portion of the operating portion to drive the engaging portion to connect with the component to be mounted.

In the interlock device according to the above aspect, the case main body includes a middle case and cover plates respectively disposed on both sides of the middle case, the mounting structure is disposed between the middle case and the cover plates, and the opening is formed in the cover plates.

In the interlock device described above, a cutout portion is formed between the intermediate case and the cover plate, and at least a part of the operation portion is located in the cutout portion.

In the interlock device described above, the notch portion is provided with a limit stopper, the intermediate housing includes a support wall that supports the slide member, and the operation portion is limited between the limit stopper and the support wall.

In the interlock device described above, an elastic member is provided between the slide member and the case main body.

In the interlock device, the sliding member is provided with a first protrusion, the housing main body is provided with a second protrusion, the elastic member is a spring, and two ends of the spring are respectively sleeved on the first protrusion and the second protrusion.

In the interlock device described above, the slide member has a stopper portion for restricting a position of the elastic member.

In the interlocking device, the sliding part further comprises a block part, the clamping part is arranged on the block part, the operating part is connected with the block part through two parallel connecting plates, the limiting part comprises two connecting plates, a space between the two connecting plates is communicated with the cavity of the middle shell, and the elastic part is positioned between the two connecting plates.

In the interlock device described above, the mounting structure includes a limiting structure for limiting the position of the slide member when moving outward relative to the housing main body.

In the interlock device according to the above aspect, the stopper structure includes a protrusion capable of being fitted into the groove, and one of the protrusion and the groove is provided in the sliding member, and the other is provided in the housing main body.

The utility model also provides a contactor assembly, which comprises at least two contactors, wherein any one interlocking device is arranged between the two contactors; the contactor includes a connection portion connected to the engagement portion.

Since the interlock device has the technical effects, the contactor assembly including the interlock device also has the same technical effects, and the discussion thereof is not repeated.

Drawings

FIG. 1 is a schematic structural view of an interlock device of the present invention in an unlocked connection;

FIG. 2 is a schematic view of the interlock of the present invention in a locked connection;

FIG. 3 is a schematic view of the internal structure of the interlock device of FIG. 1 with the cover plate removed;

FIG. 4 is a schematic view of the internal structure of the interlock device of FIG. 2 with the cover plate removed;

FIG. 5 is a schematic structural view of an intermediate housing included in the housing body corresponding to FIG. 1;

fig. 6 is a schematic structural view of the sliding member corresponding to fig. 1.

Description of reference numerals:

a case main body 10, an intermediate case 11, a limit stopper 111, a support wall 112, a cover plate 12, an opening 121, a notch portion 13, a second protrusion 14, a protrusion 15,

the slide member 20, the operation portion 21, the first convex portion 211, the block portion 22, the engagement portion 221, the groove portion 222, and the connection plate 23;

an elastic member 30.

Detailed Description

For ease of understanding and clarity of description, the following description is provided in conjunction with an interlock device and a contactor assembly having the same, and the advantageous effects will not be repeated.

In practical application, in the control setting of reversible operation of an alternating current motor, an interlocking device needs to be installed between two contactors so as to prevent the power supply short circuit accident caused by the simultaneous closing of the two contactors.

The key point of this document is that the mounting structure of interlock and contactor waiting for installed part has been improved, and it is important to explain with this regard that the structure of interlock that uses with the cooperation of contactor etc. can set up the demand according to actual structure.

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of an interlock device according to the present invention in an unlocked connection; fig. 2 is a schematic view of the interlock of the present invention in a locked connection with the contactor hidden. The unlocked connection is a state in which the interlock alone is not attached to another component, and the locked connection is a state in which the interlock is connected to a component such as a contactor.

In this embodiment, the interlock device includes a housing body 10, the housing body 10 includes a middle housing 11 and cover plates 12 respectively disposed at two sides of the middle housing 11, one mounting structure is disposed between the middle housing 11 and one side cover plate 12 for mounting with one contactor, and the other mounting structure is disposed between the middle housing 11 and the other side cover plate 12 for mounting with the other contactor.

In this embodiment, the two mounting structures have the same structural composition, so the illustration is schematically illustrated with only one mounting structure and the other mounting structure is the same, and will not be repeated. It is understood that the mounting structures on both sides may not be completely identical in actual arrangement.

In this embodiment, the mounting structure includes a sliding member 20 disposed between the middle housing 11 and the cover plate 12, the sliding member 20 includes an operating portion 21 and a latching portion 221, at least a portion of the operating portion 21 is exposed to the housing main body 10, the latching portion 221 extends out of the housing main body 10 from the opening 121 of the cover plate 12, and is configured to: pushing the exposed part of the operating part 21 can move the sliding component 20 inward relative to the housing body 10 to drive the engaging part 221 to connect with the contactor, and it can be understood that the contactor is provided with a connecting structure which is matched with the engaging part 221, and the connecting structure may be in the form of a slot or the like.

In addition, in actual installation, the structure of the housing main body of the interlock device is different, and the installation position of the installation structure may be changed according to application requirements, for example, the engaging portion 221 extends out of the housing main body 10 from an opening of another portion of the housing main body 10, and the like, but is not limited to the above-described embodiment.

It should be noted that, the inward movement of the sliding component 20 relative to the housing main body 20 means that the operation portion 21 moves relative to the inner cavity direction of the housing main body 20, that is, in the process of the inward movement, the portion of the operation portion 21 exposed to the housing main body 20 gradually decreases.

In the orientation shown in fig. 1 and 2, the exposed portion of the operating portion 21 is pushed from the left side, so that the sliding member 20 moves in a substantially right direction, and the engaging portion 221 moves in a right direction, thereby engaging with the connecting structure of the contactor. Obviously, the opening 121 for the protruding of the engaging portion 221 provided on the cover plate 12 has a certain size in the moving direction of the sliding member 20, so that the engaging portion 221 can move in the opening 121 to facilitate the connection or disconnection with the contactor.

As described above, in the interlock device, at least a portion of the operation portion 21 of the sliding member 20 is exposed outside the housing body 10, and when the operation portion is assembled with the contactor waiting-to-be-installed member, an operator can directly and manually push the sliding member 20 to connect the engaging portion 221 thereof with the waiting-to-be-installed member, and thus, the installation is convenient and quick without using tools.

In actual installation, a notch 13 is formed between the middle case 11 and the cover 12, and at least a part of the operation portion 21 of the slider sliding member 20 is located in the notch 13 in a normal state, which is a state in which the interlock device alone is not connected to the contactor.

Thus, the exposed part of the operating part 21 is positioned in the notch part 13 under the normal state, and the whole outer contour of the interlocking device is not exceeded, so that the volume of the interlocking device is prevented from being increased.

Referring to fig. 3 to 6 together, fig. 3 is a schematic view of an internal structure of the interlock device shown in fig. 1 with a cover plate removed; FIG. 4 is a schematic view of the internal structure of the interlock device of FIG. 2 with the cover plate removed; FIG. 5 is a schematic structural view of an intermediate housing included in the housing body corresponding to FIG. 1;

fig. 6 is a schematic structural view of the sliding member of fig. 1.

The middle housing 11 includes a supporting wall 112 for supporting the sliding component 20, and in the illustrated embodiment, a bottom wall of the middle housing 11 is used as the supporting wall 112 for supporting the sliding component 20, a notch is formed on a side of the middle housing 11 corresponding to the operation portion 21 of the sliding component 20, specifically, the thickness of the middle housing 11 at the position of the notch 13 can be reduced, and the cover plate 12 is chamfered at the corresponding position and cooperates with the middle housing 11 to form the notch 13.

Specifically, a stopper 111 may be provided at the position of the notch 13, and the slide member 20 may be stopped between the stopper 111 and the support wall 112 so as not to be separated from the moving direction. In the illustrated embodiment, the limiting baffle 111 is specifically formed in the middle housing 11, and is disposed opposite to the supporting wall 112, and the limiting baffle 111 may be formed by bending a side wall of the middle housing 11 toward the inside of the cavity. Of course, in other embodiments, a limit stop may be provided on the cover plate 12.

In this embodiment, the elastic member 30 is provided between the sliding member 20 and the housing main body 10, the elastic member 30 can accumulate elastic energy when the sliding member 20 is pushed to move in the direction of mounting the contactor, and after the engaging portion 221 of the sliding member 20 is connected to the connecting structure of the contactor, the engaging portion 221 can be held at the mounting position by the elastic force of the elastic member 30, thereby ensuring the reliability of the connection. Meanwhile, after the connection between the engaging portion 221 and the contactor is released, the sliding member 20 is pushed to slide outward relative to the housing body 10 under the action of the elastic energy accumulated in the elastic member 30, so that the operating portion 21 is restored and exposed to the housing body 10 again, thereby facilitating the next operation.

For the convenience of installation, the elastic member 30 is embodied as a spring structure, the length direction of which is consistent with the moving direction of the sliding member 20, in order to facilitate the assembly of the elastic member 30, the sliding member 20 is provided with a first protrusion 211, the housing body 10 is provided with a second protrusion 14, and two ends of the spring are respectively sleeved on the first protrusion 211 and the second protrusion 14.

The sliding member 20 further has a position limiting portion for limiting the position of the elastic member 30, so as to prevent the elastic member 30 from deviating from the position during the movement of the sliding member 20.

Specifically, the sliding member 20 further includes a block portion 22, the engaging portion 221 of the sliding member 20 may be disposed on the block portion 22, and the operating portion 21 and the block portion 22 are connected by two parallel connecting plates 23, such that a space is formed between the two connecting plates 23, and the elastic member 30 is located in the space, that is, the two connecting plates 23 form a limiting portion for limiting the position of the elastic member 30.

As will be understood in conjunction with fig. 3 and 4, in order to enable the elastic member 30 to be fitted with the second protrusion 14 of the case main body 10, the space formed between the two connection plates 23 communicates with the cavity of the middle case 11.

In the illustrated embodiment, the second protrusion 14 is specifically provided on the middle housing 11, the middle housing 11 is provided with a protrusion extending toward the cover 12, the protrusion and the operation portion 21 of the sliding member 20 have opposite surfaces, the second protrusion 14 is provided on the surface of the protrusion facing the operation portion 21, and correspondingly, the first protrusion 211 is provided on the surface facing the protrusion, so that the elastic member 30 is installed between the two stopper plates 23, one end of the elastic member is sleeved with the first protrusion 211, and the other end of the elastic member is sleeved with the second protrusion 14.

It is understood that, in actual installation, the second protrusion 14 may be provided on the cover plate 12, specifically, a protrusion protruding toward the middle housing 11 may be provided at a corresponding position of the cover plate 12, and the second protrusion 14 may be provided on a surface of the protrusion facing the operation portion 21.

In this embodiment, the mounting structure further includes a limiting structure for limiting the position of the sliding member 20 when it is moved outward relative to the housing main body 10.

Specifically, the limiting structure includes a protrusion 15 and a groove 222, the protrusion 15 can be engaged with the groove 222, in the illustrated embodiment, the protrusion 15 is specifically disposed on the middle housing 11 of the housing body 10, and the groove 222 is specifically disposed on the block 22 of the sliding component 20.

For the sake of convenience, the protrusion 15 may be provided on a surface of the projection of the middle case 11 facing the block 22, and the groove 222 may be provided on a surface of the block 22 facing the projection.

As shown in fig. 3, when the interlock device is in the non-mounted state, the protrusion 15 is fitted into the groove 222, and when the operating portion 21 is pushed to move the slide member 20 inward relative to the housing main body 10, the protrusion 15 and the groove 222 are separated, and in the illustrated orientation, the slide member 20 moves rightward, the groove 222 on the block 22 moves rightward away from the protrusion 15, and the elastic member 30 is compressed and accumulates elastic energy until the interlock device shown in fig. 4 is in the mounted state.

After the installation of the interlock device and the contactor is released, the elastic member 30 releases the elastic energy to the operation portion 21 of the sliding member 20, and drives the sliding member 20 to move outward relative to the housing main body 10, i.e., to move leftward from the state shown in fig. 4, and when moving to the position shown in fig. 3, the groove portion 222 and the protrusion 15 are re-engaged, and both can prevent the sliding member 20 from further moving outward.

It is understood that, in actual installation, the protrusion may be provided on the sliding member 20 and the groove may be provided on the intermediate housing 11, and similarly, the protrusion or the groove may be provided on the cover plate 12 of the housing main body 10.

The interlocking device and the contactor assembly having the same provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. An interlock device comprising a housing body and a mounting structure mounted within the housing body; the mounting structure comprises an operation part and a clamping part, at least part of the operation part is exposed out of the shell main body, the clamping part extends out of the shell main body from an opening of the shell main body, and the clamping part is driven to move through the exposed part of the operation part to be connected with a part to be mounted.

2. The interlock device according to claim 1, wherein the mounting structure includes a slide member, the operating portion and the engaging portion are both provided on the slide member, and the slide member can be moved inward relative to the housing body by an exposed portion of the operating portion to bring the engaging portion into engagement with the member to be mounted.

3. The interlock of claim 2 wherein said housing body includes a central housing and cover plates disposed on opposite sides of said central housing, said mounting structure being disposed between said central housing and said cover plates, said opening being formed in said cover plates.

4. The interlock of claim 3 wherein a cutout portion is formed between the intermediate housing and the cover plate, at least a portion of the operating portion being located at the cutout portion; the breach portion is equipped with limit baffle, middle casing is including supporting sliding part's support wall, the operating portion spacing in limit baffle with between the support wall.

5. An interlock device according to any one of claims 2 to 4 wherein a resilient member is provided between the slide member and the housing body.

6. The interlock of claim 5 wherein said slide member has a first projection, said housing body has a second projection, said resilient member is a spring, and said spring has ends that are respectively sleeved over said first projection and said second projection.

7. The interlock of claim 5 wherein said slide member has a stop portion for limiting the position of said spring; the sliding part further comprises a block part, the clamping part is arranged on the block part, the operating part is connected with the block part through two parallel connecting plates, the limiting part comprises two connecting plates, the space between the two connecting plates is communicated with the cavity of the middle shell of the shell main body, and the elastic piece is located between the two connecting plates.

8. The interlock of claim 5 wherein said mounting structure includes a limit stop structure for limiting the position of said slide member as it moves outwardly relative to said housing body.

9. The interlock of claim 8 wherein said stop structure includes a projection and a slot, said projection being snapably engaged in said slot, one of said projection and said slot being provided in said slide member and the other of said projection and said slot being provided in said housing body.

10. A contactor assembly comprising at least two contactors, wherein an interlock device according to any one of claims 1-9 is mounted between two of said contactors; the contactor includes a connection portion connected to the engagement portion.