CN108206122B

CN108206122B - Contactor

Info

Publication number: CN108206122B
Application number: CN201710038437.8A
Authority: CN
Inventors: 卢晶; 郑乾俊; 肖体锋
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Chint International Co.,Ltd.; Zhejiang Chint Electrics Co Ltd
Priority date: 2016-12-20
Filing date: 2017-01-18
Publication date: 2019-07-26
Anticipated expiration: 2037-01-18
Also published as: CN108206122A; WO2018113116A1; EP3561848B1; EP3561848A4; ES2954972T3; EP3561848A1; CN206421996U

Abstract

Contactor includes that the body and contact are supported, contact support activities are mounted in the installation cavity of the body, the ontology that contact is supported is equipped with multiple lower accommodating chambers, for accommodating moving contact, separately it is arranged between multiple lower accommodating chambers, and the side wall of ontology is equipped with multiple position limiting structures between two neighboring lower accommodating chamber, multiple position limiting structures are matched with multiple plates in installation cavity；Plate includes the connection end and bending root being connected, the bending root of plate is connected on the side wall of installation cavity, each position limiting structure includes that the side wall of two neighboring lower accommodating chamber each extends over the first limit plate and the second limit plate to be formed, first limit plate includes the connection root being connected and bent end, connect root connection on the body with the second limit plate separately, with the slot formed and the connection end of plate cooperates, the bending root of bent end and plate is oppositely arranged.The present invention provides the contactor that a kind of structure is simple, arc effect is good.

Description

Contactor

Technical field

The present invention relates to Low Voltage Electrical Apparatus, and in particular to a kind of contactor.

Background technique

The contact supporter of contactor is movably arranged in the body, at least one accommodating is usually formed on contact supporter Chamber installs moving contact in accommodating cavity, and spring one end is mounted on moving contact, and the other end is mounted on the top of accommodating cavity.Static contact It is fixedly mounted on the body, it is opposite with moving contact.Contactor at work, by moving contact move up and down with static contact open or Closure, so that operating circuit is connected or disjunction.

Contact supporter moves under hot-wire coil sucking action, so that moving contact and static contact open or close, are beating Moment generation electric arc is opened or is closed, effectively to separate alternate electric arc, usual contactor is between contact supporter and body two-phase It is provided with isolated insulation part, and electricity is determined by the size of the size of contact both ends electric current and the voltage for being applied to contact both ends The intensity of arc, Current Voltage is bigger, and electric arc is stronger, and powerful electric arc impact most probably leads to line to line fault；Usual contactor all can Laterally or longitudinally increasing space, alternate electric clearance and creepage distance is being increased, to avoid arc short circuit.But this mode is bound to Will increase small product size, especially when needing to increase some miscellaneous functions, do not meet low-voltage electrical apparatus volume miniaturization, function it is more The development trend of sample.

Summary of the invention

It is an object of the invention to overcome the deficiencies of existing technologies, the contact that a kind of structure is simple, arc effect is good is provided Device.

To achieve the above object, present invention employs following technical solutions:

A kind of contactor, including the body 1 and contact support 2, and the contact supports 2 installation cavitys for being movably arranged on the body 1 In 10, the contact supports 2 ontology 20 to be equipped with multiple lower accommodating chambers 22, described more for accommodating the moving contact of contactor Separately it is arranged between a lower accommodating chamber 22, and the side wall of ontology 20 is equipped with more between two neighboring lower accommodating chamber 22 A position limiting structure, the multiple position limiting structure are matched with multiple plates 12 in installation cavity 10；

The plate 12 includes the connection end 121 and bending root being connected, and the bending root of plate 12 is connected to body On 10 side wall of installation cavity of shell 1, each position limiting structure of contact support 2 includes that the side wall of two neighboring lower accommodating chamber 22 prolongs respectively The first limit plate 25 and the second limit plate 26 to be formed are stretched, first limit plate 25 includes 251 He of connection root being connected Bent end, the connection root 251 of the first limit plate 25 be connected on ontology 20 with the second limit plate 26 separately, with formed with The slot 27 that the connection end 121 of plate 12 cooperates, the bent end of the first limit plate 25 and the bending root of plate 12 are opposite Setting.

Preferably, the bent end of first limit plate 25 includes the first turn section 252 and first straight line section 253, institute It states the staggered floor parallel with connection root 251 of first straight line section 253 to be arranged, the first turn section 252 then tilts and is connected to first straight line section Between 253 and connection root 251；The bending root of the plate 12 includes second turn be correspondingly arranged with the first turn section 252 Trisection 122 and the second straight line section 123 being correspondingly arranged with first straight line section 253, the second straight line section 123 and connecting pin The setting of the parallel staggered floor in portion 121, the second turn section 122, which then tilts, to be connected between second straight line section 123 and connection end 121.

Preferably, parallel misalignment between connection root 251 and the connection end 121 of plate 12 of first limit plate 25 Setting, parallel misalignment is arranged between first turn section 252 and the second turn section 122, the first straight line section 253 and second Parallel misalignment is arranged between straightway 123.

Preferably, the connection root 251 of first limit plate 25 and the second limit plate 26 are slide plate structure, and the The equal length of connection 251 length of root and the second limit plate 26 of one limit plate 25.

Preferably, the length of first limit plate 25 is greater than the length of the second limit plate 26, first limit plate 25 Bent end protrude from the second limit plate 26 and bent towards the second limit plate 26.

Preferably, the contact supports 2 20 bottom end of ontology to be equipped with bottom plate 21, and the ontology 20 is vertically connected on bottom plate 21 Top surface in the middle part of on, the multiple position limiting structure, which is connected between the top surface of bottom plate 21 and the side wall of ontology 20, to be centrosymmetric point In the two sides of ontology 20, multiple plates 12 with the cooperation of multiple position limiting structures are also centrosymmetric to be arranged in installation cavity 10 cloth Interior two sides then form between the plate 12 of two sides and are used for the movable movable span 11 of ontology 20, the bottom plate 21 and installation cavity 10 Size matches, and when movement can be stopped by plate 12.

Preferably, the contact supports 2 20 two sides of ontology to protrude from bottom plate 21 to form two slidings for being located at two sides Protrusion 201, the inner sidewall of the body 1 is equipped with two sliding slots 13 positioned at 11 two sides of movable span, convex with two slidings 201 are played to match.

Preferably, the side wall of the sliding slot 13 protrudes from the inner sidewall of the body 1, also, the two sides of each slide protrusion 201 Equipped with two limited blocks 211 being located on 21 side of bottom plate, gap and cunning between the limited block 211 and slide protrusion 201 The side wall of slot 13 matches.

Preferably, the quantity of the lower accommodating chamber 22 is three, and the quantity of the position limiting structure is then four；Described three Lower accommodating chamber 22 supports 2 20 side of ontology to be arranged by contact, also, rows of three lower accommodating chambers 22 and ontology 20 Cavity 23 is formed between the other side.

Preferably, between the cavity 23 lower accommodating chamber 22 adjacent thereto be equipped with partition 28, the body 1 be equipped with every The baffle 14 that plate 28 matches.

Contactor of the invention, the position limiting structure supported by contact match setting forming layer with the plate on the body Stack structure, plays the role of separating electric arc, while the first limit plate and plate are equipped with the bending part matched, the first limit plate and Plate is segmented the conversion of bendable space, and the space without additionally expanding contactor, which can be realized, increases contactor two-phase charging member Between electric clearance and creepage distance, further effectively partition electric arc, improve product space utilization rate；Structure is simple, both mentions High arc effect effectively there is a situation where avoiding arc short circuit, and is reduced as far as small product size or the function mould for product Block provides more spaces, it can be achieved that accommodating more supplemental functionalities such as auxiliary contact, surge suppression modules etc., and it is small to reach product Type, the purpose of functional diversities, meet the development trend of low-voltage electrical apparatus.

Detailed description of the invention

Fig. 1 is the installation diagram that the contactor body and contact of the invention are supported；

Fig. 2 is the installation diagram that the inverted body and contact of the invention are supported；

Fig. 3 is the exploded view that the inverted body and contact of the invention are supported；

Fig. 4 is the top view of the body of the invention；

Fig. 5 is the perspective view that contact of the invention is supported；

Fig. 6 is the top view that contact of the invention is supported；

Fig. 7 is the front view that contact of the invention is supported.

Specific embodiment

Below in conjunction with the embodiment that attached drawing 1 to 7 provides, the specific embodiment of contactor of the invention is further illustrated. Contactor of the invention is not limited to the following description.

As shown in figs. 1-7, contactor of the invention, including the body 1 and contact support 2, and the contact supports 2 activity installations In the installation cavity 10 of the body 1, the contact supports 2 ontology 20 to be equipped with multiple independent lower accommodating chambers 22, for accommodating The moving contact of contactor, under the hot-wire coil effect of contactor, contact supports 2 movements that moving contact thereon is driven to pacify with fixed Static contact open or close on the body 1 realizes the operating circuit disjunction or connection of contactor；The multiple lower accommodating chamber Separately it is arranged between 22, and the side wall of ontology 20 is equipped with multiple limit knots between two neighboring lower accommodating chamber 22 Structure, the multiple position limiting structure are matched with multiple plates 12 in installation cavity 10；Particularly, the plate 12 includes being connected Connection end 121 and bending root, the bending root of plate 12 is connected on 10 side wall of installation cavity of the body 1, and contact supports 2 Each position limiting structure include that the side wall of two neighboring lower accommodating chamber 22 each extends over the first limit plate 25 to be formed and the second limit Position plate 26, first limit plate 25 include the connection root 251 being connected and bent end, the connection root of the first limit plate 25 Portion 251 is connected on ontology 20 with the second limit plate 26 separately, to form the slot cooperated with the connection end 121 of plate 12 27, the bent end of the first limit plate 25 is oppositely arranged with the bending root of plate 12.When installation, the connection end of plate 12 In slot 27 between 121 the first limit plates 25 of insertion and the second limit plate 26, the bending root of plate 12 is then limited with first The bent end of plate 25 is opposite.The position limiting structure supported by contact matches setting with the plate on the body and forms stacking knot Structure plays the role of separating electric arc, while the first limit plate is equipped with the bending part matched, the first limit plate and plate with plate It is segmented the conversion of bendable space, the space without additionally expanding contactor, which can be realized, to be increased between contactor two-phase charging member Electric clearance and creepage distance, further effectively partition electric arc, improve product space utilization rate；Structure is simple, both improved every Arc effect effectively there is a situation where avoiding arc short circuit, and is reduced as far as small product size or mentions for the functional module of product For more spaces, it can be achieved that accommodating more supplemental functionalities such as auxiliary contact, surge suppression modules etc., it is small-sized to reach product Change, the purpose of functional diversities, meets the development trend of low-voltage electrical apparatus.

Specifically, the bent end of first limit plate 25 includes the first turn section 252 and first straight line section 253, institute It states the staggered floor parallel with connection root 251 of first straight line section 253 to be arranged, the first turn section 252 then tilts and is connected to first straight line section Between 253 and connection root 251；The bending root of the plate 12 includes second turn be correspondingly arranged with the first turn section 252 Trisection 122 and the second straight line section 123 being correspondingly arranged with first straight line section 253, the second straight line section 123 and connecting pin The setting of the parallel staggered floor in portion 121, the second turn section 122, which then tilts, to be connected between second straight line section 123 and connection end 121.The The multisection type bending structure that one limit plate is matched with plate, simple, compact neat, effectively increases the electric equipment compartment of product two-phase Gap and creepage distance reach good partition electric arc effect.Further, the connection root 251 of first limit plate 25 with Parallel misalignment is arranged between the connection end 121 of plate 12, parallel between first turn section 252 and the second turn section 122 It shifts to install, parallel misalignment is arranged between the first straight line section 253 and second straight line section 123.First limit plate and plate Each position relative dislocation setting, further increases the creepage distance of product.

In addition, the connection root 251 of first limit plate 25 and the second limit plate 26 be parallel to each other it is straight hardened Structure, and the equal length of connection 251 length of root and the second limit plate 26 of the first limit plate 25；Second limit plate 26 towards The end of 12 side of plate is equipped with the inclined-plane with 122 parallel misalignment of the second turn section.Moreover, the length of first limit plate 25 Greater than the length of the second limit plate 26, the bent end of first limit plate 25 protrudes from the second limit plate 26 and direction second Limit plate 26 is bent.It is more compact, separate electric arc better effect.

As shown in Figures 2 and 3, contact of the invention supports the movable mounting structure with the body, the contact to support 2 sheet 20 bottom end of body is equipped with the bottom plate 21 for installing contactor armature, and the bottom surface of the bottom plate 21 is equipped with two limits separately Boss 212, the gap between two positive stop lug boss 212 are matched with the armature of contactor；Each positive stop lug boss 212 is equipped with recessed Slot 213.On the ontology 20 is vertically connected in the middle part of the top surface of bottom plate 21, the multiple position limiting structure is connected to the top of bottom plate 21 It is centrosymmetric between face and the side wall of ontology 20 and is distributed in the two sides of ontology 20, it is described multiple with the cooperation of multiple position limiting structures Plate 12, which is also centrosymmetric, is arranged in installation cavity 10 two sides, is then formed between the plate 12 of two sides movable for ontology 20 The size of movable span 11, the bottom plate 21 and installation cavity 10 matches, and when movement can be stopped by plate 12.First limit plate 25 first straight line section 253 extends to concordant with the edge of bottom plate 21.Contact support is simple with the movable mounting structure of the body, just In the movement that contact is supported.

In addition, the contact support 2 20 two sides of ontology protrude from bottom plate 21 with formed be located at two sides two slidings it is convex 201 are played, the inner sidewall of the body 1 is equipped with two sliding slots 13 positioned at 11 two sides of movable span, with two slide protrusions 201 match.The cooperation of slide protrusion and sliding slot plays the role of guiding and limit to contact support movement, improves reliability. The side wall of the sliding slot 13 protrudes from the inner sidewall of the body 1, also, the two sides of each slide protrusion 201 are equipped with and are located at bottom plate 21 The side wall of two limited blocks 211 on side, gap and sliding slot 13 between the limited block 211 and slide protrusion 201 matches It closes.Play the role of further limiting.When installation, contact supports 2 ontology 20 to be mounted in movable span 11, slide protrusion 201 It is installed in sliding slot 13, there is glade plane space, the two sidewalls of sliding slot 13 then accordingly limit two in slide protrusion 201 and two sides Between limited block 211.

As illustrated in figs. 5-7, the specific embodiment that contact of the invention is supported, the quantity of the lower accommodating chamber 22 are three, The quantity of the position limiting structure is then four, and four position limiting structures, which are centrosymmetric, is arranged in 20 two sides of ontology that contact supports 2, Two position limiting structures positioned at 20 the same side of ontology are located in two gaps of three lower accommodating chambers 22；Hold under described three Chamber 22 of receiving supports 2 20 side of ontology to be arranged by contact, also, rows of three lower accommodating chambers 22 and ontology 20 is another Cavity 23 is formed between side；Four independent upper accommodating chambers 24 are additionally provided on the ontology 20 of the contact support 2, are connect for accommodating The moving contact of tentaculum, four upper accommodating chambers 24 are arranged in rows in the top of rows of three lower accommodating chambers 22, wherein three upper appearances Chamber 24 of receiving is correspondingly arranged with three lower accommodating chambers 22, and lower section of accommodating chamber 24 is then arranged to the cavity 23 on another.Tradition Contact support, three lower accommodating chambers are evenly spaced on contact support body, fully take up in the transverse direction of ontology, to ensure two Alternate electric clearance；In the case where supporting with conventional contact with size, contact of the invention is supported, based on the limit for being equipped with bending Bit architecture and the plate of body bending cooperate, and have ensured two alternate electric clearances and creepage distance, can be by three lower accommodating chambers It arranges with sequence in the transverse direction of ontology, to improve product space utilization rate there are the cavity that can accommodate other functional modules. Moreover, being equipped with partition 28 between the lower accommodating chamber 22 adjacent thereto of cavity 23, the body 1 is equipped with and matches with partition 28 Baffle 14.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention Protection scope.

Claims

1. a kind of contactor, including the body (1) and contact support (2), it is characterised in that: the contact supports (2) activity installation In the installation cavity (10) of the body (1), the contact supports the ontology (20) of (2) to be equipped with multiple lower accommodating chambers (22), is used for The moving contact of contactor is accommodated, is separately arranged between the multiple lower accommodating chamber (22), and the side wall of ontology (20) is equipped with Multiple position limiting structures between two neighboring lower accommodating chamber (22) are more in the multiple position limiting structure and installation cavity (10) A plate (12) matches；

The plate (12) includes the connection end (121) and bending root being connected, and the bending root of plate (12) is connected to On installation cavity (10) side wall of the body (1), contact supports that each position limiting structure of (2) includes two neighboring lower accommodating chamber (22) Side wall each extends over the first limit plate (25) and the second limit plate (26) to be formed, and first limit plate (25) includes being connected Connection root (251) and bent end, the connection root (251) of the first limit plate (25) be connected on ontology (20) and second Limit plate (26) separately, to form the slot (27) cooperated with the connection end (121) of plate (12), the first limit plate (25) Bent end and the bending root of plate (12) be oppositely arranged.

2. contactor according to claim 1, it is characterised in that: the bent end of first limit plate (25) includes the One turn section (252) and first straight line section (253), the first straight line section (253) staggered floor parallel with connection root (251) are set Set, the first turn section (252) then tilt be connected to first straight line section (253) with connect between root (251)；The plate (12) Bending root include the second turn section (122) being correspondingly arranged with the first turn section (252) and with first straight line section (253) the second straight line section (123) being correspondingly arranged, the second straight line section (123) staggered floor parallel with connection end (121) are set Set, the second turn section (122) then tilt be connected to second straight line section (123) with connect between end (121).

3. contactor according to claim 2, it is characterised in that: the connection root (251) of first limit plate (25) Parallel misalignment is arranged between the connection end (121) of plate (12), first turn section (252) and the second turn section (122) parallel misalignment is arranged between, and parallel misalignment is arranged between the first straight line section (253) and second straight line section (123).

4. contactor according to claim 1, it is characterised in that: the connection root (251) of first limit plate (25) It is slide plate structure with the second limit plate (26), and connection root (251) length of the first limit plate (25) is limited with second The equal length of plate (26).

5. contactor according to claim 1 to 4, it is characterised in that: the length of first limit plate (25) is greater than The length of second limit plate (26), the bent end of first limit plate (25) protrude from the second limit plate (26) and towards the Two limit plates (26) bending.

6. contactor according to claim 1, it is characterised in that: the contact supports ontology (20) bottom end of (2) to be equipped with Bottom plate (21), the ontology (20) are vertically connected on the top surface middle part of bottom plate (21), and the multiple position limiting structure is connected to bottom It is centrosymmetric between the top surface of plate (21) and the side wall of ontology (20) and is distributed in the two sides of ontology (20), described and multiple limits Multiple plates (12) of structure cooperation, which are also centrosymmetric, to be arranged between installation cavity (10) interior two sides, the plate (12) of two sides then It is formed and is used for ontology (20) movable movable span (11), the bottom plate (21) and the size of installation cavity (10) match, when movement It can be stopped by plate (12).

7. contactor according to claim 6, it is characterised in that: the contact supports ontology (20) the two sides protrusion of (2) In bottom plate (21) to form two slide protrusions (201) for being located at two sides, the inner sidewall of the body (1) is equipped with positioned at described Two sliding slots (13) of movable span (11) two sides, match with two slide protrusions (201).

8. contactor according to claim 7, it is characterised in that: the side wall of the sliding slot (13) protrudes from the body (1) Inner sidewall, also, the two sides of each slide protrusion (201) are equipped with two limited blocks (211) being located on bottom plate (21) side, institute The gap stated between limited block (211) and slide protrusion (201) is matched with the side wall of sliding slot (13).

9. contactor according to claim 1, it is characterised in that: the quantity of the lower accommodating chamber (22) is three, described The quantity of position limiting structure is then four；Three lower accommodating chambers (22) support ontology (20) the side arrangement of (2) to set by contact It sets, also, forms cavity (23) between rows of three lower accommodating chambers (22) and the other side of ontology (20).

10. contactor according to claim 9, it is characterised in that: cavity (23) the lower accommodating chamber adjacent thereto (22) partition (28) are equipped between, the body (1) is equipped with the baffle (14) matched with partition (28).