CN110571096B

CN110571096B - Contactor device

Info

Publication number: CN110571096B
Application number: CN201910713982.1A
Authority: CN
Inventors: 温作锐
Original assignee: Zhejiang Industry and Trade Vocational College
Current assignee: Zhejiang Industry and Trade Vocational College
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2021-08-24
Anticipated expiration: 2039-08-02
Also published as: CN110571096A

Abstract

The invention discloses a contactor device which comprises a shell, a plurality of first connecting terminals, a plurality of second connecting terminals, a trigger unit, a fixed groove unit and a plurality of vacuum bubble units, and further comprises a driving unit, wherein one end of the driving unit is connected with a connecting plate of the fixed groove unit in a clamping mode, the other end of the driving unit is pressed against a fixed end ejector rod of the vacuum bubble unit, and the driving unit is used for driving the fixed end ejector rod to be in contact with a movable end ejector rod of the vacuum bubble unit. By adopting the structure, the service life of the invention is prolonged, and the breaking speed of the invention is improved.

Description

Contactor device

Technical Field

The invention relates to an electric device, in particular to a contactor device.

Background

The contactor is classified into an AC contactor (voltage AC) and a DC contactor (voltage DC), which are applied to power, distribution and utilization, and the contactor is broadly an electric appliance that controls a load by closing a contact by generating a magnetic field by a current flowing through a coil in industrial electricity, and is often applied to a motor as a control object because of an electrical engineering device that can rapidly cut off a main circuit of AC and DC and frequently turn on a circuit for controlling a large current (up to 800A). The contactor has large control capacity, is suitable for frequent operation and remote control, and is one of important elements in an automatic control system.

In traditional contactor device, inside vacuum bubble unit all is quiet end fixed, and the drive moves the end motion to realize contactor device's break-make, this kind of mode can lead to the unable effective promotion of disjunction speed, and then can influence the life of vacuum bubble unit.

Disclosure of Invention

In view of this, the present invention provides a contactor device with fast breaking speed and long service life.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a contactor device, includes casing, the first binding post of a plurality of, a plurality of second binding post, trigger unit, fixed slot unit and a plurality of vacuum bubble unit, wherein, still includes drive unit, drive unit's one end with the connecting plate block of fixed slot unit is connected, drive unit's the other end supports and presses on the quiet end ejector pin of vacuum bubble unit, drive unit is used for the drive quiet end ejector pin with the contact of the end ejector pin that moves of vacuum bubble unit.

Furthermore, the vacuum bubble unit further comprises a vacuum tube and an elastic component, the vacuum tube is installed in the shell, the static contact of the static end ejector rod and the moving contact of the moving end ejector rod are both located in the vacuum tube, the elastic component is arranged between the ejector head of the static end ejector rod and the vacuum tube, the elastic component is sleeved on the connecting column of the static end ejector rod, the elastic component is limited in the limiting cylinder by the limiting cylinder located in the shell, and the elastic component is used for enabling the static end ejector rod and the moving end ejector rod to be separated and reset.

Furthermore, the elastic component comprises a rubber column and a disc spring, the rubber column comprises a small-diameter column, a large-diameter column and a circular table column which are sequentially connected, the small-diameter column is connected with the ejector, the large end face of the circular table column is connected with the large-diameter column, the small end face of the large-diameter column is connected with the vacuum tube, the disc spring is arranged between the large-diameter column and the vacuum tube, and the periphery of the disc spring abuts against the inner wall of the limiting tube.

Furthermore, a plurality of rigid supporting pieces are embedded in the small-diameter column, each rigid supporting piece is provided with a V-shaped rod, the bottom of each V-shaped rod extends towards the center direction close to the small-diameter column, two side arms of each V-shaped rod are respectively provided with a supporting plate, and the supporting plates extend towards the center direction far away from the small-diameter column.

Furthermore, a plurality of annular conical tooth grooves are formed in the periphery of the large-diameter column.

Furthermore, the elastic component further comprises a spring, the spring is located between the jacking head and the small-diameter column, and the spring is sleeved on the small-diameter column.

Furthermore, the driving unit comprises a driving rod and a driving plate, the driving rod is in sliding fit with a guide sleeve positioned in the shell, one end of the driving rod is connected with the connecting plate in a clamping manner, a ball head is arranged at the other end of the driving rod and is abutted against a groove of the driving plate, the driving plate is pivoted in the shell, an operating rod of the driving plate is abutted against the top head, and when the fixed end ejector rod is separated from the movable end ejector rod, a second touch plate of the driving plate is abutted against a second limiting plate positioned in the shell; when the static end ejector rod is contacted with the movable end ejector rod, the first contact plate of the driving plate abuts against the first limiting plate in the shell.

Furthermore, the drive plate still includes pin joint board and arc, the pin joint board pin joint is in the casing, the one end of pin joint board with first touch panel links to each other, the other end of pin joint board with the arc links to each other, the recess is seted up on one side of arc, just the second touch panel is located the top of recess, the action bars is connected on the opposite side of arc.

The technical scheme can show that the invention has the advantages that:

1. because the movable end ejector rod is fixed in the vacuum bubble unit, the fixed end ejector rod moves to realize the contact or separation between the static contact and the movable contact, so that the breaking speed of the vacuum bubble unit can be increased, the higher the breaking speed is, the lower the possibility of electric arc generated between the static contact and the movable contact is, and the smaller the situation of electric arc ablation is generated, thereby prolonging the service life of the vacuum bubble unit and further prolonging the service life of the vacuum bubble unit;

2. because the vacuum bubble unit is provided with the elastic component which comprises the rubber column, the disc spring and the spring, larger elastic force can be realized in the same space, and on the other hand, a three-safety mechanism can be formed, when the spring/disc spring is broken, the rubber column can also work normally without influence, so that the service life of the vacuum bubble unit is prolonged, and the service life of the vacuum bubble unit is further prolonged.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:

fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the structure of the elastic member in the vacuum bubble unit of the present invention.

Fig. 3 is a schematic structural view of a driving plate in the driving unit of the present invention.

Labeled as: the device comprises a shell 10, a limiting cylinder 101, a guide sleeve 102, a first limiting plate 103, a second limiting plate 104, a first wiring terminal 20, a second wiring terminal 30, a trigger unit 40, a switch 401, a driving power source 402, a coil 403, an electromagnet core 404, a fixing groove unit 50, a supporting plate 501, a connecting plate 502, a suction plate 503, an attraction block 504, a vacuum bubble unit 60, a static end ejector rod 601, a static contact 6011, an ejector head 6012, a connecting column 6013, a moving end ejector rod 602, a moving contact 6021, a vacuum tube 603, an elastic component 604, a driving unit 70, a driving rod 701, a ball head 7011, a driving plate 702, a pivoting plate 7021, an arc plate 7022, a groove 70221, a first touch plate 7023, a second touch plate 7024, an operating rod 7025, a reset spring 80, a rubber column 1, a small-diameter column 11, a large-diameter column 12, an annular conical tooth groove 121, a circular truncated cone column 13, a disc spring 2, a rigid supporting piece 3, a V-shaped rod 31, a supporting plate 32 and a spring 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, a contactor device as shown in fig. 1 includes a housing 10, a plurality of first connection terminals 20, a plurality of second connection terminals 30, a trigger unit 40, a fixed slot unit 50, and a plurality of vacuum bubble units 60, wherein the contactor device further includes a driving unit 70, one end of the driving unit 70 is connected to a connection plate 502 of the fixed slot unit 50 in a clamping manner, the other end of the driving unit 70 is pressed against a stationary end ejector 601 of the vacuum bubble unit 60, the driving unit 70 is configured to drive the stationary end ejector 601 to contact a moving end ejector 602 of the vacuum bubble unit 60, so as to achieve communication of the contactor device, in the present invention, the stationary end ejector 601 is moved to achieve contact or separation between a stationary contact 6011 of the stationary end ejector 601 and a moving contact 6021 of the moving end ejector 602, so as to accelerate a breaking speed of the contactor device, and increase the breaking speed, the less the possibility of the arc generated between the fixed contact 6011 and the movable contact 6021, the less the arc ablation occurs, so that the service life of the vacuum bubble unit 60 can be prolonged, and the service life of the contactor device can be further prolonged.

As shown in fig. 1, the vacuum bubble unit 60 further includes a vacuum tube 603 and an elastic component 604, the vacuum tube 603 is installed in the housing 10, the fixed contact 6011 and the movable contact 6021 are both located in the vacuum tube 603, the elastic component 604 is disposed between the top 6012 of the fixed end top rod 601 and the vacuum tube 603, the elastic component 604 is sleeved on the connecting column 6013 of the fixed end top rod 601, the elastic component 604 is limited in the limiting cylinder 101 by the limiting cylinder 101 located in the housing 10, and the elastic component 604 is used to separate and reset the fixed contact 6011 and the movable contact 6021, so as to facilitate the next connection and disconnection of the contactor device.

As shown in fig. 2, the elastic component 604 includes a rubber column 1 and a disc spring 2, the rubber column 1 includes a small diameter column 11, a large diameter column 12 and a circular truncated cone column 13 which are connected in sequence, the small diameter column 11 is connected with the top 6012, the large end surface of the circular truncated cone column 13 is connected with the large diameter column 12, the small end surface of the large diameter column 12 is connected with the vacuum tube 603, the disc spring 2 is disposed between the large diameter column 12 and the vacuum tube 603, the periphery of the disc spring 2 abuts against the inner wall of the limiting tube 101, and the disc spring 2 is disposed so that the rubber column 1 is easy to reset.

As shown in fig. 2, a plurality of rigid supporting members 3 are embedded in the small-diameter column 11, each rigid supporting member 3 has a V-shaped rod 31, the bottom of the V-shaped rod 31 extends toward the center of the small-diameter column 11, and two side arms of the V-shaped rod 31 are respectively provided with a supporting plate 32, the supporting plates 32 extend toward the center of the small-diameter column 11, and due to the arrangement of the rigid supporting members 3, the rigidity of the small-diameter column 11 is enhanced, so that the rigidity of the rubber column 1 is enhanced, further, the rubber column 1 is prevented from being excessively deformed, the service life of the elastic component 604 is prolonged, the service life of the vacuum bubble unit 60 is further prolonged, and the service life of the contactor device is prolonged.

As shown in fig. 2, the outer circumference of the large-diameter column 12 is provided with a plurality of annular tapered slots 121, and the plurality of annular tapered slots 121 increase the elastic force of the large-diameter column 12, thereby preventing the static contact 6011 and the movable contact 6021 from being difficult to reset.

As shown in fig. 2, the elastic component 604 further includes a spring 4, the spring 4 is located between the top 6012 and the large diameter column 12, the spring 4 is sleeved on the small diameter column 11, and the elastic component includes a rubber column 1, a disc spring 2 and a spring 4, so that a larger elastic force can be realized in the same space, on the other hand, a triple safety mechanism can be formed, when the spring 4/the disc spring 2 are broken, the rubber column 1 can also work as usual without being affected, thereby prolonging the service life of the vacuum bubble unit 60, and further prolonging the service life of the contactor device.

As shown in fig. 1 and 3, the driving unit 70 includes a driving rod 701 and a driving plate 702, the driving rod 701 is slidably fitted with the guide sleeve 102 located in the housing 10, one end of the driving rod 701 is connected with the connecting plate 502 in a snap-fit manner, the other end of the driving rod 701 is provided with a ball head 7011, the ball head 7011 abuts against a groove 70221 of the driving plate 702, the driving plate 702 is pivoted in the housing 10, an operating rod 7025 of the driving plate 702 abuts against the top 6012, and when the fixed-end ejector rod 601 is separated from the movable-end ejector rod 602, a second contact plate 7024 of the driving plate 702 abuts against a second limiting plate 104 located in the housing 10; when the stationary end ejector rod 601 contacts the movable end ejector rod 602, the first touch plate 7023 of the driving plate 702 abuts against the first limiting plate 103 in the casing 10, the driving plate 702 further comprises a pivot plate 7021 and an arc plate 7022, the pivot plate 7021 is pivoted in the casing 10, one end of the pivot plate 7021 is connected with the first touch plate 7023, the other end of the pivot plate 7021 is connected with the arc plate 7022, the groove 70221 is formed in one side of the arc plate 7022, the second touch plate 7024 is located above the groove 70221, and the operating rod 7025 is connected to the other side of the arc plate 7022.

In the above embodiment, in the normal state, the fixed contact 6011 and the movable contact 6021 are separated from each other, and at this time, the contactor device is in the off state, that is, the first connection terminal 20 and the second connection terminal 30 are not conducted.

When conduction is needed, the switch 401 of the trigger unit 40 can be actuated, so that the driving power source 402 and the coil 403 are in a communication state, that is, the driving power source 402 supplies power to the coil 403 formally, after the coil 403 supplies power, because the electromagnet core 404 is located in the coil 403, the whole trigger unit 40 forms an electromagnet, at the moment of power supply, a strong magnetic force is generated, under the magnetic attraction of the electromagnet core 404, because the attraction block 504 is arranged on the attraction plate 503 of the fixed slot unit 50, the attraction plate 503 receives a force towards the direction of the electromagnet core 404, the two will be closed together rapidly, in the process that the electromagnet core 404 and the attraction block 504 attract and approach, the body structure of the fixed slot unit 50 formed by the connecting plate 502 and the attraction plate 503 is actually an approximate lever structure, the body structure of the fixed slot unit 50 rotates with the supporting plate 501 as a fulcrum, the connecting plate 502 will also rotate accordingly and generate a force, at the same time as the return spring 80 will also deform and accumulate energy.

In the process of rotation of the connecting plate 502, a force is applied to the driving rod 701, so that the ball head 7011 drives the driving plate 702 to rotate, the operating rod 7025 presses the stationary end ejector rod 601 to move towards the direction close to the moving end ejector rod 602, the elastic component 604 is compressed, at this time, the elastic component 604 is also in a deformation energy storage state, and in the process of movement, the stationary contact 6011 and the moving contact 6021 are in contact with each other, so that the contactor device is switched on.

In the process of disconnection, the switch 401 is firstly closed, so that the driving power source 402 and the coil 403 are in a disconnected state, that is, the driving power source 402 and the coil 403 are formally powered off, once the power is off, the electromagnetic core 404 no longer has magnetic force, the energy stored in the reset spring 80 and the elastic component 604 can be instantly released, the reset spring 80 can drive the attraction plate 503 to move towards the opposite direction, the elastic component 604 can drive the static end ejector rod 601 to move towards the direction far away from the moving end ejector rod 602, the release of the two energies can drive the static end ejector rod 601 to reset, and further the fixed groove unit 50 is reversely rotated and reset, so that the static contact 6011 and the moving contact 6021 are rapidly separated, and the disconnection operation is realized.

The present invention has been described in terms of the preferred embodiment, but it is not limited thereto, and various modifications and changes will be apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A contactor device comprises a shell (10), a plurality of first connecting terminals (20), a plurality of second connecting terminals (30), a trigger unit (40), a fixed groove unit (50) and a plurality of vacuum bubble units (60), and is characterized by further comprising a driving unit (70), one end of the driving unit (70) is connected with a connecting plate (502) of the fixed groove unit (50) in a clamping manner, the other end of the driving unit (70) is pressed against a static end ejector rod (601) of the vacuum bubble unit (60), the driving unit (70) is used for driving the static end ejector rod (601) to be in contact with a moving end ejector rod (602) of the vacuum bubble unit (60), the vacuum bubble unit (60) further comprises a vacuum tube (603) and an elastic component (604), the vacuum tube (603) is installed in the shell (10), and a static contact (6011) of the static end ejector rod (601) and a moving contact (6021) of the moving end ejector rod (602) are all located at equal positions In the vacuum tube (603), the elastic component (604) is arranged between a top head (6012) of the static end ejector rod (601) and the vacuum tube (603), the elastic component (604) is sleeved on a connecting column (6013) of the static end ejector rod (601), a limiting cylinder (101) in the shell (10) limits the elastic component (604) in the limiting cylinder (101), the elastic component (604) is used for separating and resetting the static end ejector rod (601) and the movable end ejector rod (602), the elastic component (604) comprises a rubber column (1) and a disc spring (2), the rubber column (1) comprises a small-diameter column (11), a large-diameter column (12) and a circular truncated cone column (13) which are sequentially connected, the small-diameter column (11) is connected with the top head (6012), and the large end face of the circular truncated cone column (13) is connected with the large-diameter column (12), the little terminal surface of major diameter post (12) with vacuum tube (603) link to each other, dish spring (2) set up major diameter post (12) with between vacuum tube (603), just the periphery of dish spring (2) is kept out on the inner wall of spacing section of thick bamboo (101), the embedded a plurality of rigidity support piece (3) that is equipped with of minor diameter post (11), rigidity support piece (3) have a V-arrangement pole (31), the bottom of V-arrangement pole (31) is to being close to the central direction of minor diameter post (11) extends, just be equipped with a backup pad (32) on the both sides arm of V-arrangement pole (31) respectively, backup pad (32) are to keeping away from the central direction of minor diameter post (11) extends.

2. The contactor device as claimed in claim 1, wherein a plurality of annular tapered slots (121) are formed on the outer circumference of the large diameter column (12).

3. The contactor device according to claim 1, wherein the resilient member (604) further comprises a spring (4), the spring (4) is located between the plug (6012) and the small diameter column (12), and the spring (4) is fitted over the small diameter column (11).

4. The contactor device according to claim 1, wherein the drive unit (70) comprises a drive rod (701) and a drive plate (702), the driving rod (701) is in sliding fit with a guide sleeve (102) positioned in the shell (10), one end of the driving rod (701) is connected with the connecting plate (502) in a clamping way, the other end of the driving rod (701) is provided with a ball head (7011), the ball head (7011) is pressed on the groove (70221) of the driving plate (702), the driving plate (702) is pivoted in the shell (10), an operating rod (7025) of the driving plate (702) is pressed against the ejector head (6012), when the static end ejector rod (601) is separated from the movable end ejector rod (602), a second contact plate (7024) of the driving plate (702) abuts against a second limiting plate (104) in the shell (10); when the static end ejector rod (601) is in contact with the movable end ejector rod (602), a first contact plate (7023) of the driving plate (702) abuts against a first limiting plate (103) in the shell (10).

5. The contactor device according to claim 4, wherein the driving plate (702) further comprises a pivot plate (7021) and an arc plate (7022), the pivot plate (7021) is pivoted in the housing (10), one end of the pivot plate (7021) is connected to the first touch plate (7023), the other end of the pivot plate (7021) is connected to the arc plate (7022), the groove (70221) is opened on one side of the arc plate (7022), the second touch plate (7024) is located above the groove (70221), and the operating rod (7025) is connected to the other side of the arc plate (7022).