CN220933979U

CN220933979U - Three-phase contactor

Info

Publication number: CN220933979U
Application number: CN202322666235.1U
Authority: CN
Inventors: 张华兵; 崔晓明; 梁治平; 潘婉玲
Original assignee: Zhejiang Baiwo Electric Co ltd; Shanghai Liangxin Electrical Co Ltd
Current assignee: Zhejiang Baiwo Electric Co ltd; Shanghai Liangxin Electrical Co Ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-05-10
Anticipated expiration: 2033-09-28

Abstract

The utility model provides a three-phase contactor, which comprises a contactor body and a plurality of terminal board assemblies arranged on the contactor body, wherein the terminal board assemblies comprise: a first terminal plate having a first contact plate and a first connection plate connected; the two second terminal plates are symmetrically distributed on two sides of the first terminal plate, each second terminal plate is provided with a second contact plate which is parallel to the first contact plate, and a second connecting plate which is connected with the second contact plate in a bending way and extends towards the direction of the first connecting plate, and the two second connecting plates and the first connecting plate are suitable for being connected with the same external conducting plate. Thus, two second terminal boards are added on the basis of the original first terminal board, so that high current can be borne; in addition, as the two second terminal plates have the same structure, only the second terminal plate with one specification is required to be processed, and the processing is convenient.

Description

Three-phase contactor

Technical Field

The utility model relates to the technical field of contactors, in particular to a three-phase contactor.

Background

The contactor is a common type of piezoelectric device element, has wide application, and is often applied to electric appliances which are used for switching on and off alternating current/direct current main circuits and large-capacity control circuits remotely and frequently. The main control object is an electric motor, and can also be used for controlling electric loads such as electric heating equipment, electric lighting, electric welding machines, capacitor banks and the like. The existing contactor can only bear small current (generally below 1000A), and cannot meet the requirements of partial customers on the large-current contactor.

Disclosure of utility model

Therefore, the technical problem to be solved by the utility model is to overcome the defect that the contactor in the prior art can only bear small current, thereby providing a three-phase contactor capable of bearing large current.

To this end, the utility model provides a three-phase contactor comprising a contactor body and a plurality of terminal plate assemblies arranged on the contactor body, wherein the terminal plate assemblies comprise a first terminal plate and two second terminal plates, and the first terminal plate is provided with a first contact plate and a first connecting plate which are connected; the two second terminal boards are symmetrically distributed on two sides of the first terminal board, each second terminal board is provided with a second contact board which is parallel to the first contact board, and a second connecting board which is connected with the second contact board in a bending way and extends towards the direction of the first connecting board, and the two second connecting boards and the first connecting board are suitable for being connected with the same external conducting board.

The first connecting plate comprises a first section and a second section which are connected with each other, the first section is positioned between the first contact plate and the second section, a first perforation is formed in the second section, the width of the first section is larger than that of the second section, the second section is provided with grooves which are respectively arranged on two sides of the width direction of the second section, a second perforation is formed in the second connecting plate, the edge of the second perforation extends into the grooves, and the second perforation is positioned on the outer side of the grooves.

Two first perforations are formed in the second section, and two second perforations are formed in the second connecting plate.

And a chamfer is arranged on one side, away from the first connecting plate, of the second connecting plate.

The contactor body is provided with a partition plate positioned between two adjacent terminal plate assemblies.

The baffle passes through the grafting structure the contactor body assembly, the grafting structure is including locating the inserted block of contactor body, and locate the baffle edge, with the slot of inserted block adaptation grafting, the opening of slot sets up downwards.

The baffle is adjacent one side of slot is equipped with the elastic arm, be equipped with the arch on the outer wall of elastic arm, be equipped with on the contactor body with the dog that the arch set up corresponds, the elastic arm has the protruding locking state that offsets with the dog to and under the exogenic action elastic deformation, protruding with the unblock state of dog separation.

The top of the elastic arm is provided with a tooth slot.

The technical scheme of the utility model has the following advantages:

1. The utility model provides a three-phase contactor, a terminal board assembly comprises a first terminal board and two second terminal boards symmetrically distributed on two sides of the first terminal board, wherein the first terminal board is provided with a first contact board and a first connecting board which are connected, the second terminal board is provided with a second contact board which is arranged in parallel with the first contact board, and a second connecting board which is connected with the second contact board in a bending way and extends towards the direction of the first connecting board, and the two second connecting boards and the first connecting board are suitable for being connected with the same external conducting board, so that the two second terminal boards are added on the basis of the original first terminal board, and high current can be borne; in addition, as the two second terminal plates have the same structure, only the second terminal plate with one specification is required to be processed, and the processing is convenient.

2. The three-phase contactor provided by the utility model has the advantages that the first connecting plate comprises the first section and the second section which are connected with each other, the width of the first section is larger than that of the second section, the second section is provided with the grooves which are respectively arranged at the two sides of the width direction of the second section, the second connecting plate is provided with the second through holes, the edges of the second through holes extend into the grooves, and as the second through holes are positioned at the outer sides of the grooves, the distance between the second through holes and the edges of the adjacent second connecting plates can be increased, and the structural strength is improved.

3. According to the three-phase contactor provided by the utility model, the separator is assembled through the contactor body in the plug-in structure, the plug-in structure comprises the plug block arranged on the contactor body and the slot arranged on the edge of the separator and in fit connection with the plug block, the opening of the slot is arranged downwards, and when the three-phase contactor is assembled, the slot of the separator is aligned with the plug block from top to bottom, so that the assembly is rapid and convenient.

4. According to the three-phase contactor provided by the utility model, one side of the baffle plate adjacent to the slot is provided with the elastic arm, the outer wall of the elastic arm is provided with the bulge, the contactor body is provided with the stop block corresponding to the bulge, and the elastic arm is provided with the locking state of the bulge against the stop block and the unlocking state of elastic deformation and separation of the bulge and the stop block under the action of external force. When the elastic arm is in a locking state, the baffle plate and the contactor body are firmly installed; when the partition plate needs to be disassembled, a certain external force is applied to the elastic arm, so that the bulge is separated from the stop block, and the partition plate can be pulled out upwards.

5. According to the three-phase contactor provided by the utility model, the tooth grooves are formed in the top of the elastic arm, and when the three-phase contactor is disassembled, an operator can prop the tooth grooves by using the head of the straight screwdriver, so that the protrusions of the elastic arm are separated from the stop blocks, and the three-phase contactor is convenient for people to use.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a three-phase contactor of the present utility model;

FIG. 2 is a perspective view of FIG. 1 with a portion of the cover plate removed;

fig. 3 is a schematic structural view of a terminal plate assembly;

FIG. 4 is a partially assembled cross-sectional view of a separator and a contactor body;

Fig. 5 is a schematic structural view of the separator.

Reference numerals illustrate: 1. a first terminal board; 2. a second terminal plate; 3. a contactor body; 4. a first contact plate; 5. a first connection plate; 6. a second contact plate; 7. a second connecting plate; 8. a first section; 9. a second section; 10. a groove; 11. a first perforation; 12. a second perforation; 13. chamfering; 14. a partition plate; 15. inserting blocks; 16. a slot; 17. an elastic arm; 18. a protrusion; 19. a stop block; 20. tooth slots.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Examples

The present embodiment provides a three-phase contactor, as shown in fig. 1 and 2, including a contactor body 3, a plurality of terminal plate assemblies, and a separator 14.

As shown in fig. 2 and 3, the terminal plate assembly includes a first terminal plate 1 and two second terminal plates 2. The first terminal board 1 is provided with a first contact board 4 and a first connecting board 5 which are connected, the first connecting board 5 comprises a first section 8 and a second section 9 which are connected with each other, the first section 8 is positioned between the first contact board 4 and the second section 9, a first perforation 11 is formed on the second section 9, the width of the first section 8 is larger than that of the second section 9, and the second section 9 is provided with grooves 10 which are respectively arranged at two sides of the width direction.

The two second terminal boards 2 are symmetrically distributed on two sides of the first terminal board 1, the second terminal board 2 is provided with a second contact board 6 which is parallel to the first contact board 4, and a second connecting board 7 which is bent and connected with the second contact board 6 and extends towards the direction of the first connecting board 5, the two second connecting boards 7 and the first connecting board 5 are suitable for being connected with the same external conductive board, a second perforation 12 is formed on the second connecting board 7, the edge of the second perforation extends into the groove 10, and the second perforation 12 is positioned on the outer side of the groove 10. In this embodiment, two first through holes 11 are formed in the second section 9, two second through holes 12 are formed in the second connecting plate 7, and a chamfer 13 is disposed on a side of the second connecting plate 7 away from the first connecting plate 5. The thickness of the second contact plate 6 is greater than the thickness of the first contact plate 4.

And a separator 14 detachably mounted on the contactor body 3 and positioned between two adjacent terminal plate assemblies. The partition 14 is assembled with the contactor body 3 through a plugging structure, as shown in fig. 4 and 5, the plugging structure comprises a plug 15 arranged on the contactor body 3, and a slot 16 arranged on the edge of the partition 14 and adapted to be plugged with the plug 15, and the opening of the slot 16 is downward. The baffle 14 is equipped with the elastic arm 17 near one side of slot 16, be equipped with protruding 18 on the outer wall of elastic arm 17, be equipped with on the contactor body 3 with protruding 18 corresponds the dog 19 that sets up, elastic arm 17 have protruding 18 with the locking state that dog 19 offset to and under the exogenic action elastic deformation, protruding 18 with the unblock state that dog 19 separated, the top of elastic arm 17 is equipped with tooth's socket 20.

The utility model provides a three-phase contactor, a terminal board assembly comprises a first terminal board 1 and two second terminal boards 2 symmetrically distributed on two sides of the first terminal board 1, wherein the first terminal board 1 is provided with a first contact board 4 and a first connecting board 5 which are connected, the second terminal board 2 is provided with a second contact board 6 which is arranged in parallel with the first contact board 4 and a second connecting board 7 which is connected with the second contact board 6 in a bending way and extends towards the direction of the first connecting board 5, and the two second connecting boards 7 and the first connecting board 5 are suitable for being connected with the same external conducting board, so that two second terminal boards are added on the basis of the original first terminal board, and therefore high current can be borne; in addition, as the two second terminal plates have the same structure, only the second terminal plate with one specification is required to be processed, and the processing is convenient.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A three-phase contactor, comprising a contactor body (3), and a plurality of terminal block assemblies disposed on the contactor body (3), the terminal block assemblies comprising:

a first terminal plate (1) having a first contact plate (4) and a first connection plate (5) connected;

Two second terminal board (2), the symmetry distribute in the both sides of first terminal board (1), second terminal board (2) have with first contact board (4) parallel arrangement's second contact board (6), and with second contact board (6) buckle link to each other, and towards second connecting plate (7) that first connecting plate (5) direction extends, two second connecting plate (7) with first connecting plate (5) are suitable for and link to each other with same outside conducting plate.

2. The three-phase contactor according to claim 1, wherein the first connection plate (5) comprises a first section (8) and a second section (9) which are connected with each other, the first section (8) is located between the first contact plate (4) and the second section (9), a first through hole (11) is formed in the second section (9), the width of the first section (8) is larger than that of the second section (9), the second section (9) is provided with grooves (10) which are respectively arranged at two sides in the width direction, a second through hole (12) is formed in the second connection plate (7), the edge of the second through hole (12) extends into the grooves (10), and the second through hole (12) is located at the outer side of the grooves (10).

3. Three-phase contactor according to claim 2, characterized in that said second section (9) is formed with two said first perforations (11) and said second connection plate (7) is formed with two said second perforations (12).

4. Three-phase contactor according to claim 1, characterized in that the side of the second connection plate (7) remote from the first connection plate (5) is provided with a chamfer (13).

5. Three-phase contactor according to claim 1, characterized in that the contactor body (3) is provided with a separator (14) between two adjacent terminal plate assemblies.

6. The three-phase contactor according to claim 5, characterized in that the separator (14) is assembled with the contactor body (3) by a plugging structure comprising a plug (15) provided on the contactor body (3), and a slot (16) provided on the edge of the separator (14) and adapted to be plugged with the plug (15), the opening of the slot (16) being arranged downwards.

7. The three-phase contactor according to claim 6, wherein an elastic arm (17) is provided on a side of the partition plate (14) adjacent to the slot (16), a protrusion (18) is provided on an outer wall of the elastic arm (17), a stopper (19) provided corresponding to the protrusion (18) is provided on the contactor body (3), and the elastic arm (17) has a locking state in which the protrusion (18) abuts against the stopper (19), and an unlocking state in which the protrusion (18) is elastically deformed by an external force and separated from the stopper (19).

8. The three-phase contactor according to claim 7, characterized in that the top of said elastic arms (17) is provided with tooth slots (20).