CN207367871U - A kind of vacuum contactor with dustproof cover - Google Patents

Abstract

The utility model discloses a kind of vacuum contactor with dustproof cover, including contact head insulated device and shell, the shell is internally provided with insulation board, the insulation board is connected by the static contact of upper extraction copper bar and lower section, glass shell is provided with below the static contact, the glass shell is connected with the seal cap sealing of lower section, the sealing cover is connected by the first flexible circuit conductor and the insulation board in left side, insulating bar is provided with the right side of the glass shell, the insulating bar passes through touch spring and the second flexible circuit conductor lower extraction copper bar attached below, the lower extraction copper bar passes through on tripping spring switching electromagnet attached below, the lower section of the switching electromagnet sets linear extinguishing arc resistance.The utility model is simple in structure, and ease of assembly assembling, reduces cost, thus the utility model have it is rational in infrastructure, it is novel in design, have very big utility value.

Description

A kind of vacuum contactor with dustproof cover

Technical field

Electric power fittings equipment technical field is the utility model is related to, is specially a kind of vacuum contactor with dustproof cover.

Background technology

At present, vacuum contactor utilizes vacuum interrupter arc extinguishing, to frequently switch on and cut off running current, usually For in switching on and off at a distance, 6kV, 380V (660V, 1140V) ac motor of the frequent start-stop of low pressure, serial low pressure Vacuum A. C. contactor is widely used in, colliery, electric power, metallurgical, weaving.The various industries such as skyscraper department.Low-voltage vacuum A.C. contactor is suitable for exchange:50HZ. rated voltages:1140V, the feeding network of rated current 63 to 630A, for remote Connect and be used with disjunction circuit, and Fraquent start and stopping ac motor.It is particularly suitable with various protective devices with being combined Explosion-proof electromagnetic starter is dressed up, vacuum contactor is mainly made of vacuum interrupter and operating mechanism.Vacuum interrupter has Pass through reliable two effects of arc extinguishing when running current and frequent cut-out operating current.But overload electric current and short cannot be cut off Road electric current.Operating mechanism is made of the holding coil and armature of ribbon core.Coil is powered, and attracts armature, contactor closure；Line Dead electricity is enclosed, contactor disconnects.Holding coil generally has direct current and exchanges two kinds of forms.

Through retrieval, Authorization Notice No.:206180461U, authorized announcement date 2017.05.17, the utility model discloses one The closing locking device of kind vacuum contactor, including：The well head formula push-pull rod connecting rod extended along the direction of motion of slide closure, its First end is interval with the first pin hole of radial direction and the second pin hole of radial direction, is equipped with pivot pin in the first pin hole, is set in the second pin hole There is positioning pin；The second end of well head formula push-pull rod connecting rod is fixed on crane；Well head formula push-pull rod shaft, it is equipped with through hole, Well head formula push-pull rod shaft is rotatably arranged between the first pin hole and the second pin hole by through hole；In flakes, it is by being in 120 ° The first arm and the second arm of angle are formed, and end and the well head formula push-pull rod shaft of the first arm are rotatablely connected, the end of the second arm It is fixedly connected with slide closure.The utility model not only ensure that the blocking function of handcart, but also effectively avoid switch frequent Since electrodynamic deficiency causes the phenomenon that sliding block bite makes switch not close a floodgate in action process.

Possessed shortcoming deficiency：

1. but the vacuum contactor of in the market is when switch on and switch off, the magnitude of voltage of DC load cannot be averaged, and easily go out Now each load voltage situation not of uniform size, therefore be easy to cause the damage of load or reduce the service life of vacuum contactor, it is right Work quality has influenced, and the vacuum contactor of in the market does not often have alarm device, it is impossible to which realization is prevented accident in advance Function；

2. traditional breaker is since structure design is unreasonable, the risk for having maloperation, and total is complex, group Dress assembling is cumbersome, and to this, we release a kind of novel outdoor high-voltage AC vacuum contactor；

3. existing vacuum contactor is badly in need of a new there is the shortcomings of closing speed is slow, coil easily generates heat The vacuum contactor of type.

Utility model content

(1) technical problem solved

In view of the deficiencies of the prior art, the utility model provides a kind of vacuum contactor with dustproof cover, and direct current is born The magnitude of voltage of load cannot be averaged, and the problem of each load voltage situation not of uniform size easily occur.

(2) technical solution

To achieve the above object, the utility model provides following technical solution：A kind of vacuum contactor with dustproof cover, Including contact head insulated device and shell, the shell is internally provided with insulation board, and the insulation board is by upper extraction copper bar with The static contact of side connects, and glass shell, the seal cap sealing company with lower section of the glass shell are provided with below the static contact Connect, the sealing cover is connected by the first flexible circuit conductor and the insulation board in left side, is provided with insulating bar on the right side of the glass shell, institute State insulating bar and separating brake is passed through by touch spring and the second flexible circuit conductor lower extraction copper bar attached below, the lower extraction copper bar On spring switching electromagnet attached below, the lower section of the switching electromagnet sets linear extinguishing arc resistance, described linear Overvoltage protection controller is provided with below extinguishing arc resistance, signal processor is installed below the overvoltage protection controller, The static contact is smoothly connected by external insulation and surface insulation, and the centre of the surface insulation is connected with moving conductive rod, described Bellows and moving contact are provided with below contact head insulated device, the both sides of the bellows are provided with conductor.

Preferably, the inside of the signal processor is provided with dustproof cover.

Preferably, shielding case is provided with below the static contact, and there are two, it is symmetrical.

Preferably, insulated spring is installed below the conductor, and is arranged at the inside of conductor.

Preferably, the moving conductive rod is smoothly connected by static contact and contact head insulated device.

(3) beneficial effect

The utility model provides a kind of vacuum contactor with dustproof cover, possesses following beneficial effect：

(1), the utility model is by circuit, as long as the phase of suitable control linear extinguishing arc resistance triggering and conducting moment Angle, it becomes possible to control the average value of DC load voltage, avoid each load voltage situation not of uniform size, realize increase vacuum The purpose of the service life of contactor, and overvoltage protection controller is added in vacuum contactor, it can prevent accident in advance, very Just accomplish to prevent trouble before it happens.

(2), the utility model total is simple, and ease of assembly assembling, reduces cost, so the utility model has knot Structure is reasonable, novel in design, there is very big utility value.

(3), the utility model controls the opening and closing of static contact by touch spring, while by the speed of bellows and conductor Amplification, makes the contact velocity of moving contact faster.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model；

Fig. 2 is glass shell structure diagram in the utility model Fig. 1.

In figure：Copper bar is drawn on 1-；2- insulation boards；3- static contacts；4- glass shells；5- sealing covers；The first flexible circuit conductors of 6-；7- Lower extraction copper bar；8- tripping springs；9- switching electromagnets；The linear extinguishing arc resistance of 10-；11- overvoltage protection controllers；12- signals Processor；13- insulating bars；14- touch springs；The second flexible circuit conductors of 15-；16- surface insulations；17- static contacts；18- moving conductives Bar；19- external insulations；20- shielding cases；21- contact head insulated devices；22- bellowss；23- moving contacts；24- conductors；25- insulated springs； 26- dustproof covers；27- shells.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, a kind of embodiment provided by the utility model：A kind of vacuum contactor with dustproof cover, bag Contact head insulated device 21 and shell 27 are included, shell 27 is internally provided with insulation board 2, and insulation board 2 passes through upper extraction copper bar 1 and lower section Static contact 3 connect, the lower section of static contact 3 is provided with glass shell 4, being tightly connected with the sealing cover 5 of lower section for glass shell 4, close Capping 5 is connected by the first flexible circuit conductor 6 with the insulation board 2 in left side, and the right side of glass shell 4 is provided with insulating bar 13, insulating bar 13 By 14 and second flexible circuit conductor 15 of touch spring lower extraction copper bar 7 attached below, lower extraction copper bar 7 passes through tripping spring 8 On switching electromagnet 9 attached below, the lower section of switching electromagnet 9 sets linear extinguishing arc resistance 10, linear extinguishing arc resistance 10 lower section is provided with overvoltage protection controller 11, and the lower section of overvoltage protection controller 11 is provided with signal processor 12, stationary contact First 3 are smoothly connected by external insulation 19 and surface insulation 16, and the centre of surface insulation 16 is connected with moving conductive rod 18, and contact is exhausted The lower section of edge device 21 is provided with bellows 22 and moving contact 23, and the both sides of bellows 22 are provided with conductor 24, signal processor 12 Inside dustproof cover 26 is installed, the lower section of static contact 3 is provided with shielding case 20, has two, symmetrical, the lower section of conductor 24 Insulated spring 25 is installed, is arranged at the inside of conductor 24, moving conductive rod 18 is smooth by static contact 17 and contact head insulated device 21 Connection.

In use, the right side of glass shell 4 is provided with insulating bar 13, insulating bar 13 passes through 14 and second flexible circuit conductor of touch spring 15 lower extraction copper bars 7 attached below, lower extraction copper bar 7 by the switching electromagnet 9 attached below of tripping spring 8, The lower section of switching electromagnet 9 sets linear extinguishing arc resistance 10, as long as suitable control linear 10 triggering and conducting moment of extinguishing arc resistance Phase angle, it becomes possible to control the average value of DC load voltage, avoid each load voltage situation not of uniform size, linearly disappear The lower section of arc resistance 10 is provided with overvoltage protection controller 11, and the lower section of overvoltage protection controller 11 is provided with signal processor 12, signal processor 12 sends signal warning when over-pressed, realizes the purpose of the service life of increase vacuum contactor, and very Overvoltage protection controller is added in empty contactor, can in advance be prevented accident, be truly realized and prevent trouble before it happens.

It can to sum up obtain, the utility model is by setting static contact 17, moving contact 23, tripping spring 8, switching electromagnet 9, line Property extinguishing arc resistance 10, the magnitude of voltage that overvoltage protection controller 11 and signal processor 12 avoid DC load cannot be averaged, hold Easily there is the problem of each load voltage situation not of uniform size.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment Intrinsic key element.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of vacuum contactor with dustproof cover, including contact head insulated device (21) and shell (27), it is characterised in that：It is described Shell (27) is internally provided with insulation board (2), and the insulation board (2) passes through upper extraction copper bar (1) and the static contact (3) of lower section Connect, glass shell (4), sealing cover (5) sealing with lower section of the glass shell (4) are provided with below the static contact (3) Connection, the sealing cover (5) are connected by the first flexible circuit conductor (6) with the insulation board (2) in left side, the right side of the glass shell (4) Be provided with insulating bar (13), the insulating bar (13) by touch spring (14) and the second flexible circuit conductor (15) it is attached below under Copper bar (7) is drawn, the lower extraction copper bar (7) is described by tripping spring (8) switching electromagnet (9) attached below The lower section of switching electromagnet (9) sets linear extinguishing arc resistance (10), is provided with below the linear extinguishing arc resistance (10) Pressure protects controller (11), and signal processor (12), the static contact are provided with below the overvoltage protection controller (11) (3) it is smoothly connected by external insulation (19) and surface insulation (16), the centre of the surface insulation (16) is connected with moving conductive rod (18), it is provided with bellows (22) and moving contact (23) below the contact head insulated device (21), the two of the bellows (22) Side is provided with conductor (24).

A kind of 2. vacuum contactor with dustproof cover according to claim 1, it is characterised in that：The signal processor (12) inside is provided with dustproof cover (26).

A kind of 3. vacuum contactor with dustproof cover according to claim 1, it is characterised in that：The static contact (3) Lower section be provided with shielding case (20), and have two, it is symmetrical.

A kind of 4. vacuum contactor with dustproof cover according to claim 1, it is characterised in that：The conductor (24) Lower section is provided with insulated spring (25), and is arranged at the inside of conductor (24).

A kind of 5. vacuum contactor with dustproof cover according to claim 1, it is characterised in that：The moving conductive rod (18) it is smoothly connected by static contact (17) and contact head insulated device (21).