CN103745886A - Protective cover capable of improving insulation performance of contactor and housing structure - Google Patents
Protective cover capable of improving insulation performance of contactor and housing structure Download PDFInfo
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- CN103745886A CN103745886A CN201410015426.4A CN201410015426A CN103745886A CN 103745886 A CN103745886 A CN 103745886A CN 201410015426 A CN201410015426 A CN 201410015426A CN 103745886 A CN103745886 A CN 103745886A
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- contactor
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- 238000009413 insulation Methods 0.000 title claims abstract description 137
- 230000001681 protective effect Effects 0.000 title claims abstract description 92
- 239000004020 conductor Substances 0.000 claims abstract description 106
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000016507 interphase Effects 0.000 abstract 7
- 238000011161 development Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 241001212149 Cathetus Species 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
- H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/0264—Protective covers for terminals
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Patch Boards (AREA)
- Insulating Bodies (AREA)
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Abstract
The invention discloses a protective cover capable of improving the insulation performance of a contactor. The protective cover is arranged on a shell of the contactor, and is used for preventing an operator from mistakenly contacting live conductors on the shell. The protective cover comprises outer wiring protection walls positioned on the live conductors of each phase and a plurality of inter-phase insulating walls, wherein the inter-phase insulating walls are arranged in the wiring protection walls; the inter-phase insulating walls and the wiring protection walls form a first enclosing structure; the inter-phase insulating walls are arranged at an equal interval; the live conductors are arranged between the adjacent inter-phase insulating walls; the inter-phase insulating walls are inserted into gaps between the live conductors and insulating retaining walls of the shell to form shortest leakage paths which linearly extend along the surfaces of the inter-phase insulating walls from the outermost edges of the live conductors and are deflected to upwards extend to the innermost edge, which is closest to the live conductors, of the shell. According to the protective cover, the broken line type shortest leakage paths are formed to prolong the shortest leakage distance on the basis of not increasing the size of the contactor, so that the insulation performance of the contactor is improved.
Description
Technical field
The present invention relates to a kind of contactor, particularly a kind of contactor case structure that increases the protective cover of contactor insulation performance and have this protective cover, belongs to low voltage electrical apparatus technology field.
Background technology
Contactor refers to and can carry and connect continually, the mechanical switch electrical equipment of the non-manual operation of disjunction normal circuit electric current.Along with the fast development of Low Voltage Electrical Apparatus, miniaturization, personalization and the insulation property of market linkage tentaculum product are had higher requirement.
Application more a kind of contactor at present, as Figure 1-3, comprise the shell mechanism being formed by housing 1 and protective cover 2 and be located at some phase energized conductors in described shell mechanism, that formed by a watt shape terminal screw 3, contact plate 4 and wire 5 etc., at present extensive use be the contactor with four phase energized conductors.In described housing 1, be provided with evenly spaced several insulation retaining walls 11, between every adjacent two insulation retaining walls 11, be provided with a mutually described energized conductor, insulate described in described energized conductor and adjacent two and between retaining wall 11, leave certain gap 6.Described protective cover 2 is overall structure, be installed on the top of described energized conductor, described energized conductor towards outside, described protective cover 2 forms the quantity wiring identical with described energized conductor quantity protection wall 21, be used for preventing that user from getting an electric shock when operation, guarantee to use safety.
In order to meet the requirement of low voltage electrical apparatus industry to contactor product insulation property, the shortest leakage distance (being creepage distance) of the contactor of the prior art must meet the requirements of set point.As Fig. 3 shows the partial sectional view of the contactor of the prior art, by this figure, can be found out, the described wiring protection of the described protective cover 2 of watt shape sheet 31 distance on described watt of shape terminal screw 3 in described energized conductor is nearest with the edge of wall 21 and described housing 1, therefore the shortest leakage distance of the contactor of the prior art be shown in Fig. 3 cathetus path b from described watt of shape sheet 31, along the described wiring protection wall 21 approaching with described watt of shape sheet 31, creep to the vertical distance of the top edge of described housing 1, and in order to strengthen the insulation property of contactor, must increase the vertical straight linear distance of described watt shape sheet 31 and described housing 1 top edge, this demand for development for the miniaturization of contactor product is a sizable obstacle beyond doubt.
Summary of the invention
For this reason, technical problem to be solved by this invention is that contactor of the prior art is for reinforced insulation performance, must increase shell dimension, be unfavorable for the problem of Miniaturization Design, provide a kind of on the shell dimension basis that does not increase contactor, strengthen contactor insulation performance, be conducive to the protective cover of contactor product Miniaturization Design.
A kind of miniaturization for contactor, personalization are further provided and can meet the contactor shell mechanism of short leakage distance.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of protective cover that increases contactor insulation performance, be installed on the housing of described contactor, for preventing operating personnel's misconnection, touch the some phase energized conductors that are installed on described housing, the setting in a row of some mutually described energized conductors, described protective cover comprises the wiring protection wall towards outside that is positioned at each mutually described energized conductor, described protective cover also comprises that being arranged at described wiring protects with protecting several phase insulation walls that form the first encirclement structure with wall in wall and with described wiring, described in several, the even interval setting of phase insulation wall and adjacent described phase insulation between the walls arrange described energized conductor, described phase insulation wall inserts in the gap between the insulation retaining wall of described energized conductor and described housing, to form, by energized conductor outermost edge position, started, along the rectilinear creeping of described phase insulation wall surface, being then folded to climb walks on described housing the shortest leakage path of the inward flange of the housing of close described energized conductor position.
Described wiring protection is parallel with some mutually described energized conductor orientation in a row with length of walls bearing of trend, described phase insulation wall is connected and extends towards described energized conductor inner side with wall is vertical with described wiring protection, so that the length that described phase insulation wall extends along described energized conductor inner side overlaps with the small part that is projected to of described energized conductor in some mutually described energized conductor orientations.
Described wiring protection is connected in described phase insulation wall locations place with wall and forms consistent with wall quantity that insulate described in several and form with the wall that insulate described in several bayonet socket that clamping coordinates.
Described clamping coordinates for matched in clearance.
Also comprise and be arranged on the gear line protection wall of described wiring protection with wall opposite, described energized conductor comprises that one end puts in the contact plate of described housing inner side, described contact plate puts on the end inside described housing fixed contact is set, and described gear line protection keeps off between the end of the described housing of putting in of each mutually described energized conductor and described contact plate inner side with wall.
Described phase insulation wall extends to the place, centre position near described energized conductor towards described energized conductor inner side.
Described phase insulation wall extends to towards described energized conductor inner side with described gear line protection wall and is connected, and described phase insulation wall and the protection of described gear line form second with wall and surround structure.
Also comprise the protective cover top cover that is connected in described wiring protection wall and described gear line protection between the walls, described protective cover top cover and described wiring protection are arcuate shape with wall junction.
A kind of shell mechanism, comprises housing and protective cover described above, and each phase insulation wall part of described protective cover is inserted in the gap between the energized conductor installed on described housing and adjacent insulation retaining wall.
On described insulation retaining wall edge toward the outer side and near described protective cover installed position, form gap structure, to form, by the outermost end position, edge of described energized conductor, started, along the rectilinear creeping of described phase insulation wall surface, be then folded to along the extremely the shortest leakage path of the breach angle point of described gap structure of surface creep of the described insulation retaining wall of described wiring protection wall or described housing.
Technique scheme of the present invention has the following advantages compared to existing technology:
1. the protective cover of increase contactor insulation performance of the present invention, by forming first in wiring protection with moulding in wall and wiring protection wall, surround the phase insulation wall of structure, after protective cover of the present invention is assembled on contactor case, phase insulation wall is inserted in the gap between the interior energized conductor of housing and the insulation retaining wall of housing, thereby after forcing the shortest leakage path to be started by energized conductor outermost edge position, the first surperficial rectilinear creeping along phase insulation wall, then being folded to climb walks on housing the inward flange of the housing of close energized conductor position, the vertical straight thread path starting from energized conductor outermost edge position with respect to the shortest leakage path in prior art, the shortest leakage path of broken line type of the present invention is not increasing on the basis of contactor volume, extended the shortest leakage distance, thereby the insulation property of contactor have been strengthened.
2. the protective cover of increase contactor insulation performance of the present invention, described phase insulation wall is connected and extends towards described energized conductor inner side with wall is vertical with described wiring protection, and described phase insulation wall is overlapped along the small part that is projected to of some mutually described energized conductor orientations with described energized conductor, the intersection of described phase insulation wall and described energized conductor projection, the first surface creep along described phase insulation wall of the shortest leakage path that guiding is started by described energized conductor edge, improved the reliability of protective cover enhancing contactor insulation performance.
3. the protective cover of increase contactor insulation performance of the present invention, described bayonet socket forms matched in clearance with corresponding described insulation wall, the setting of matched in clearance had both been conducive to the installation of described wiring protection wall and described insulation wall, can guarantee again to there will not be and rock after described wiring protection is installed on described insulation retaining wall with wall.
4. the protective cover of increase contactor insulation performance of the present invention, also comprise and be arranged on the gear line protection wall of described wiring protection with wall opposite, described gear line protection keeps off between the end of the described housing of putting in of each mutually described energized conductor and described contact plate inner side with wall, described gear line protection has prevented that with the setting of wall the electric arc being produced by described contact plate upper static contact or moving contact from entering into the part of described energized conductor near hull outside, thereby has avoided the leaky of contactor case.
5. the protective cover of increase contactor insulation performance of the present invention, described phase insulation wall extends to the place, centre position near described energized conductor towards described energized conductor inner side, this kind of setting of described phase insulation wall both can guide the shortest leakage path being started by described energized conductor edge first along described phase insulation wall, to creep, in the time of can guaranteeing that again protective cover of the present invention is installed, described phase insulation wall and described gear line insulation wall can not interfere when installing on described housing.
6. the protective cover of increase contactor insulation performance of the present invention, described phase insulation wall extends to towards described energized conductor inner side with described gear line protection wall and is connected, described phase insulation wall and the protection of described gear line form second with wall and surround structure, described phase insulation wall is connected with wall with the protection of described gear line and forms the second encirclement structure, although can affect the installation of protective cover of the present invention, but described second surrounds structure, for the shortest leakage path being started by described energized conductor edge, first along the surface creep of described phase insulation wall, play guiding function further, make the reliability of protective cover of the present invention higher.
7. the protective cover of increase contactor insulation performance of the present invention, described protective cover top cover and described wiring protection are arcuate shape with wall junction, this structure is goodlooking, is conducive to marketing.
8. the protective cover of increase contactor insulation performance of the present invention, by the setting of described phase insulation wall, force the shortest leakage path of the contactor that adopts protective cover of the present invention to advance along broken line, extended the shortest leakage distance, thereby make to adopt the contactor of protective cover of the present invention when the shortest satisfied leakage distance requires, its shell dimension is less with respect to the shell dimension of prior art contactor, adopt lower again that the top edge of the housing of the contactor of protective cover of the present invention can moulding, dwindled the volume of housing, further make contactor product size dwindle, meet social development, be conducive to marketing.
9. the protective cover of increase contactor insulation performance provided by the invention, simple in structure, there is no the specific (special) requirements on manufacturing, and easily is automated and produces in enormous quantities.
10. shell mechanism of the present invention, comprise above-mentioned protective roof structure and housing, the insulation retaining wall of described housing forms gap structure on edge toward the outer side, due to the shortest leakage distance that has extended the contactor with this shell mechanism that arranges of the phase insulation wall of protective cover, therefore started to meet the requirement of short leakage distance to the distance that the shortest leakage path of the fold-line-shaped of the breach corner point of described gap structure extends by the outermost edge position of energized conductor.By adopt this gap structure not only saved contactor housing with material, make contactor smaller and more exquisite, and by this gap structure, the top of contactor housing looked look like " D " word of giving prominence to, goodlooking, be conducive to marketing.
Accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is protective cover and the casing assembling structure schematic diagram in prior art contactor;
Fig. 2 is the protective roof structure schematic diagram of prior art;
Fig. 3 is the shortest leakage path schematic diagram of prior art;
Fig. 4 is the structural representation of protective cover of the present invention;
Fig. 5 is the side sectional view after protective cover of the present invention is assembled on housing;
Fig. 6 is the another side cutaway view after protective cover of the present invention is assembled on housing;
Fig. 7 is the structural representation of the unassembled protective cover of housing of the present invention;
Fig. 8 is the schematic diagram of the shortest leakage path of housing of the present invention assembling protective cover and unassembled protective cover;
Fig. 9 is the structural representation of housing of the present invention;
Figure 10 is that shell mechanism of the present invention is assembled to the structural representation after contactor.
In figure, Reference numeral is expressed as: 1-housing, 11-insulation retaining wall, 21-wiring protection wall, 211-bayonet socket, 22-phase insulation wall, 23-gear line be wall, 24-protective cover top cover, 3-watt shape terminal screw, 31-watt shape sheet, 4-contact plate, 5-wire, 6-gap, 7-gap structure, 71-breach angle point for protection.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
The invention provides a kind of protective cover that increases contactor insulation performance, as Figure 4-Figure 6, be installed on the housing 1 of described contactor, for preventing that operating personnel's misconnection from touching, be installed on some phase energized conductors on described housing 1, described energized conductor comprises contact plate 4, be arranged on watt shape terminal screw 3 on described contact plate 4 and wire 5 etc.Described protective cover is fastened on the top of described energized conductor from the aperture position of the housing 1 of described energized conductor top.In the present embodiment, as Figure 4-Figure 6, described protective cover comprises the protection of the wiring towards the outside wall 21 that is positioned at each mutually described energized conductor, it should be noted that, the described side of described energized conductor near the edge of described housing 1 that refer to towards outside, described protective cover also comprises that being arranged at described wiring protects with protecting several phase insulation walls 22 that form the first encirclement structure with wall 21 in wall 21 and with described wiring, described in several, between phase insulation wall 22 even interval setting and adjacent described phase insulation wall 22, described energized conductor is set, described in several, phase insulation wall 22 is parallel to each other, and all perpendicular to described wiring protection wall 21,
In the present embodiment, as shown in Fig. 5 and Figure 10, described phase insulation wall 22 inserts in the gap 6 between described energized conductor and the insulation retaining wall 11 of described housing 1, to form, by energized conductor outermost edge position B, started, the lower edge of wall 21 for protection along the surperficial rectilinear creeping of described phase insulation wall 22 to described wiring, being then folded to climb walks on described housing 1 the shortest leakage path E of the inward flange position D of housing of the most close described energized conductor.
It should be noted that, the outermost edge position B of the described energized conductor extremely described wiring protection of described protective cover is 3-5mm by the distance of the lower edge of wall 21, but be not limited to 3-5mm, the outermost edge position B of described energized conductor also can be less than 3 or be greater than 5mm by the distance of the lower edge of wall to the described wiring protection of described protective cover, when the outermost edge position B of described energized conductor and described wiring protection with the lower edge of wall 21 very near time, the shortest leakage path being started by the outermost edge position B of described energized conductor will be directly climb and is walked to the D place, inward flange position of described housing 1 with the outer surface of wall 21 along described wiring protection, simultaneously, when the outermost edge position B of described energized conductor and described the first protection are far away by the lower edge of wall 21, leakage path BCD shown in Fig. 8 may not be just the shortest leakage path so.Therefore, the outermost edge position B of described energized conductor uses a preferred problem of distance existence of the lower edge of wall 21 to described first protection of described protective cover, in the present embodiment, the outermost edge position of described energized conductor to the described wiring protection of described protective cover is between 3-5mm by the distance of the lower edge of wall 21.
It should be noted that, in the present embodiment, the shortest described leakage path E creeps to the lower edge position rear steering of described wiring protection wall 21, can upwards creep along the surface of described insulation retaining wall 11, also can with the surface of shell of wall 21, upwards creep along the described wiring of next-door neighbour protection, finally creep to the D place, inward flange position of housing.
With respect to the vertical straight thread path that does not have the shortest leakage path of described protective cover 2 of described phase insulation wall 22 to start from energized conductor outermost edge position in prior art, (straight line path as shown in Figure 3 b), the shortest leakage path of broken line type of the present embodiment is not increasing on the basis of contactor volume, extend the shortest leakage distance, thereby strengthened the insulation property of contactor.In addition, because the shortest leakage path of broken line type has extended the shortest leakage distance, thus lower that the position of the top edge of the housing of the contactor of the protective cover of the present embodiment can moulding adopted, thus shell dimension is dwindled, meet social development, be conducive to marketing.
In the present embodiment, as shown in Fig. 4 and Figure 10, described wiring protection is parallel with some mutually described energized conductor orientation in a row with wall 21 length bearing of trends, described phase insulation wall 22 is connected and extends towards described energized conductor inner side with wall 21 is vertical with described wiring protection, so that the length that described phase insulation wall 22 extends along described energized conductor inner side overlaps with the small part that is projected to of described energized conductor in some mutually described energized conductor orientations.The intersection of described phase insulation wall 22 and described energized conductor projection, the shortest leakage path that guiding is started by described energized conductor edge, first along the surface creep of described phase insulation wall 22, has improved the reliability of protective cover enhancing contactor insulation performance.
As shown in Fig. 4 and Figure 10, described wiring protection is connected in described phase insulation wall 22 positions with wall 21 and forms consistent with retaining wall 11 quantity that insulate described in several and form with the retaining wall 11 that insulate described in several bayonet socket 211 that clamping coordinates.
Further, described bayonet socket 211 forms matched in clearance with described insulation retaining wall 11, the setting of matched in clearance had both been conducive to the installation of described wiring protection wall 21 and described insulation retaining wall 11, can guarantee again to there will not be and rock after described wiring protection is installed on described insulation retaining wall 11 with wall 21.
The protective cover of the present embodiment, also comprise and be arranged on the gear line protection wall 23 of described wiring protection with wall 21 opposites, described energized conductor comprises that one end puts in the contact plate of described housing 1 inner side, described contact plate puts on the end of described housing 1 inner side fixed contact is set, and described gear line protection keeps off between the end of the described housing of putting in of each mutually described energized conductor and described contact plate 1 inner side with wall 23.Described gear line protection has prevented that with the setting of wall 23 electric arc being produced by described contact plate 4 upper static contacts or moving contact from entering into the part of described energized conductor near hull outside, thereby has avoided the leaky of contactor case.
Further, as shown in Fig. 4 and Figure 10, described phase insulation wall 22 extends to the place, centre position near described energized conductor towards described energized conductor inner side.Particularly, described phase insulation wall 22 extends to the centre position near watt shape sheet 31 of described watt of shape terminal screw 3 towards described energized conductor inner side.This kind of setting of described phase insulation wall 22 both can guide the shortest leakage path being started by described energized conductor edge first along described phase insulation wall 22, to creep, in the time of can guaranteeing again the protective cover installation of the present embodiment, described phase insulation wall 22 and described gear line insulation wall can not interfere when installing on described housing 1.
It should be noted that, centre position near watt shape sheet 31 of described watt of shape terminal screw 3 is also the result of an optimal design to described the second protection with a certain position between wall 23, and it is that leakage path BCD based on shown in Fig. 8 is approaching but be no more than the optimum position that the shortest leakage path of position association therewith draws.Certainly, in other embodiments of the invention, if described phase insulation wall 22 is designed to extend to described gear line protection and be connected with wall 23 is vertical towards described energized conductor inner side, described phase insulation wall 22 forms the second encirclement structure with described gear line protection with wall 23, the centre position of watt shape sheet 31 of so close described watt of shape terminal screw 3 will further be strengthened with the alternate leakage path of position between wall 23 and reach maximum to described the second protection, leakage path is now by the edge, the top straight up of the retaining wall 11 that insulate for lower limb to the described housing 1 that extends downward its bearing of trend from described phase insulation wall 22.Therefore, even if protective cover of the present invention is applied to the shell structure of prior art, it also can increase the insulation property of contactor product, thereby reaches the object that reduces product height.
Particularly, in the present embodiment, as shown in Fig. 4 and Figure 10, described phase insulation wall 22 is five, accordingly, the described insulation retaining wall 11 mating with described phase insulation wall 22 is also five, but the present invention is not limited to this for the quantity setting of described phase insulation wall 22 and described insulation retaining wall 11, according to different main contact numbers of poles and the auxiliary contact number of contactor, described phase insulation wall 22 can be 2,3,4,6,8,10 etc., accordingly, described insulation retaining wall 11 can be also 2,3,4,6,8,10 etc.
Further, in the present embodiment, as shown in Figure 4, described protective cover also comprises that protecting with described wiring the gear line being oppositely arranged with wall 21 protects with wall 23.Described gear line protection is identical with the quantity of described wiring protection wall 21 by the quantity of wall 23, and in the present embodiment, described gear line protection is set to four with wall 23 and described wiring protection wall 21.
In the present embodiment, as shown in Fig. 4 and Figure 10, the protective cover of the present embodiment also comprises the protective cover top cover 24 being connected between described wiring protection wall 21 and described gear line protection wall 23, described protective cover top cover 24 is arcuate shape with described wiring protection with wall 21 junctions, goodlooking, the personalized design that meets contactor product, is conducive to marketing.
It should be noted that, in the present embodiment, described protective cover is overall structure, and described wiring protection is integrated setting with wall 21 and described protective cover top cover 24.But the top cover of protective cover described in the present invention 24 is not limited to arcuate shape with described wiring protection by the shape of wall 21 junctions, can be also other conventional shapes such as rectangular shaped etc.
According to structure described above, below illustrate that with reference to the accompanying drawings the protective cover of the present embodiment extends the principle of the shortest leakage distance of contactor:
As shown in Figure 8, when contactor does not assemble the described protective cover of the present embodiment: the inward flange position D of the described housing 1 of another outermost edge position A of described watt of shape sheet 31 in described energized conductor distance is nearest, therefore described in, the shortest leakage distance starts to calculate from another outermost edge position A of described watt of shape sheet 31, the shortest described leakage path is by another outermost edge position A of described watt of shape sheet 31, inward flange position D along oblique rectilinear creeping to described housing 1, the shortest described leakage distance is the air line distance between A-D in Fig. 8.
As shown in Figure 8, when contactor assembles the described protective cover of the present embodiment: the shortest described leakage path is started by the described outermost edge position B of described watt of shape sheet 31, wall 21 lower edges are used in surperficial rectilinear creeping to described wiring protection along described phase insulation wall 22, then be folded to upwards the inward flange position D along the surperficial rectilinear creeping of described wiring protection wall 21 to described housing 1, the shortest described leakage distance is the fold line distance of A-C-D in Fig. 8.
By contrast be not difficult find, the protective cover in the present embodiment by arrange phase insulation wall 22 make described in the shortest leakage path from straight line, become broken line, extended the shortest leakage distance, be conducive to contactor and develop to miniaturization.
The present embodiment provides a kind of shell mechanism, belong to a part for contactor, as shown in Fig. 7, Fig. 9 and Figure 10, comprise housing 1 and protective cover as above, in the gap 6 between the energized conductor that each phase insulation wall 22 partial insertions of described protective cover are installed on described housing 1 and adjacent insulation retaining wall 11.
In the present embodiment, as shown in Fig. 6-10, because the shortest leakage distance that is arranged so that the contactor with this shell mechanism of the described phase insulation wall 22 of described protective cover is extended, therefore,
On housing, the shaping position of the inward flange position (being breach corner location place) of close energized conductor can be lower, therefore, on described insulation retaining wall 11 edge toward the outer side and near described protective cover installed position, form gap structure 7, thereby form, by the outermost end position, edge of described energized conductor, started, along the surperficial rectilinear creeping of described phase insulation wall 22, be then folded to along the extremely the shortest leakage path of the breach angle point 71 of described gap structure of surface creep of the described insulation retaining wall 11 of described wiring protection wall 21 or described housing 1.It should be noted that, described breach corner location is the inward flange position of described housing 1 in the present embodiment.The formation of described gap structure not only saved housing with material, the size of housing is dwindled, and this gap structure looks the top of housing to look like " D " word, goodlooking, meets contactor personalization of product development, is beneficial to marketing.
Certainly, it is tool structure jaggy that the present invention is not limited to described housing 1, in force, described housing 1 also can not form gap structure, because described phase insulation wall 22 and described wiring protection form the first encirclement structure with wall 21, the shortest leakage path of contactor is advanced along broken line, extended the shortest leakage distance, thereby described housing 1 is being met on the basis of the shortest leakage distance requirement, with respect to the shell structure of prior art, its upper marginal position near described watt of shape sheet 31 outermost edge positions of described watt of shape terminal screw 3 can moulding lower, thereby with respect to prior art, the structure of housing 1 has been dwindled, saved the material of using of housing 1.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And the apparent variation of being extended out thus or variation are still among the protection range in the invention.
Claims (10)
1. one kind increases the protective cover of contactor insulation performance, be installed on the housing (1) of described contactor, be used for preventing the tactile some phase energized conductors that are installed on described housing (1) of operating personnel's misconnection, the setting in a row of some mutually described energized conductors, described protective cover comprises the protection wall of the wiring towards outside (21) that is positioned at each mutually described energized conductor;
It is characterized in that, also comprise that being arranged at described wiring protects interior with wall (21) and protect with wall (21) formation first and surround several phase insulation walls (22) of structure with described wiring, arranges described energized conductor between phase insulation wall (22) even interval setting and adjacent described phase insulation wall (22) described in several; Described phase insulation wall (22) inserts in the gap (6) between described energized conductor and the insulation retaining wall (11) of described housing (1), to form, by energized conductor outermost edge position (B), started, along the surperficial rectilinear creeping of described phase insulation wall (22), being then folded to climb walks on described housing (1) the shortest leakage path (E) of the inward flange position (D) of the housing of close described energized conductor.
2. the protective cover of increase contactor insulation performance according to claim 1, it is characterized in that: described wiring protection wall (21) length bearing of trend is parallel with some mutually described energized conductor orientation in a row, described phase insulation wall (22) is connected and extends towards described energized conductor inner side with wall (21) is vertical with described wiring protection, so that the length that described phase insulation wall (22) extends along described energized conductor inner side overlaps with the small part that is projected to of described energized conductor in some mutually described energized conductor orientations.
3. the protective cover of increase insulation property according to claim 2, is characterized in that: described wiring protection is connected in described phase insulation wall (22) position with wall (21) and forms consistent with the wall that insulate described in several (11) quantity and form with the wall that insulate described in several (11) bayonet socket (211) that clamping coordinates.
4. the protective cover of increase insulation property according to claim 3, is characterized in that: described clamping coordinates for matched in clearance.
5. according to the protective cover of the increase insulation property described in any one in claim 1-4, it is characterized in that: also comprise and be arranged on the gear line protection wall (23) of described wiring protection with wall (21) opposite, described energized conductor comprises that one end puts in the contact plate of described housing (1) inner side, described contact plate puts on the end inside described housing (1) fixed contact is set, and described gear line protection keeps off between the end of the described housing of putting in of each mutually described energized conductor and described contact plate (1) inner side with wall (23).
6. the protective cover of increase contactor insulation performance according to claim 5, is characterized in that: described phase insulation wall (22) extends to the place, centre position near described energized conductor towards described energized conductor inner side.
7. the protective cover of increase contactor insulation performance according to claim 5, it is characterized in that: described phase insulation wall (22) extends to towards described energized conductor inner side with described gear line protection wall (23) and is connected, and described phase insulation wall (22) forms second with described gear line protection with wall (23) and surrounds structure.
8. according to the protective cover of the increase contactor insulation performance described in any one in claim 1-7, it is characterized in that: also comprise the protective cover top cover (24) being connected between described wiring protection wall (21) and described gear line protection wall (23), described protective cover top cover (24) is arcuate shape with described wiring protection with wall (21) junction.
9. a shell mechanism, it is characterized in that: comprise housing (1) and the protective cover as described in any one in claim 1-8, in the gap (6) between the energized conductor that each phase insulation wall (22) partial insertion of described protective cover is above installed in described housing (1) and adjacent insulation retaining wall (11).
10. shell mechanism according to claim 9, it is characterized in that: on described insulation retaining wall (11) edge toward the outer side and near described protective cover installed position, form gap structure (7), to form, by the outermost end position, edge of described energized conductor, started, along the surperficial rectilinear creeping of described phase insulation wall (22), be then folded to along the extremely the shortest leakage path of the breach angle point (71) of described gap structure of surface creep of the described insulation retaining wall (11) of described wiring protection wall (21) or described housing (1).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015426.4A CN103745886B (en) | 2014-01-14 | 2014-01-14 | A kind of protective cover and shell mechanism increasing contactor insulation performance |
| RU2016125544A RU2665470C2 (en) | 2014-01-14 | 2015-01-13 | Protective cover for increasing insulating characteristics of contactor and housing structure |
| BR112016015291-3A BR112016015291B1 (en) | 2014-01-14 | 2015-01-13 | PROTECTIVE COVERAGE TO INCREASE THE INSULATION PERFORMANCE OF A CONTACTOR AND ACCOMMODATION STRUCTURE |
| PCT/CN2015/070569 WO2015106672A1 (en) | 2014-01-14 | 2015-01-13 | Protective cover for increasing insulating property of contactor, and shell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015426.4A CN103745886B (en) | 2014-01-14 | 2014-01-14 | A kind of protective cover and shell mechanism increasing contactor insulation performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103745886A true CN103745886A (en) | 2014-04-23 |
| CN103745886B CN103745886B (en) | 2015-11-25 |
Family
ID=50502898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410015426.4A Active CN103745886B (en) | 2014-01-14 | 2014-01-14 | A kind of protective cover and shell mechanism increasing contactor insulation performance |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN103745886B (en) |
| BR (1) | BR112016015291B1 (en) |
| RU (1) | RU2665470C2 (en) |
| WO (1) | WO2015106672A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015106672A1 (en) * | 2014-01-14 | 2015-07-23 | 德力西电气有限公司 | Protective cover for increasing insulating property of contactor, and shell structure |
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| CN103745886B (en) * | 2014-01-14 | 2015-11-25 | 德力西电气有限公司 | A kind of protective cover and shell mechanism increasing contactor insulation performance |
| CN103745887B (en) * | 2014-01-14 | 2015-11-25 | 德力西电气有限公司 | A kind of protective cover rotates assembly structure and has the contactor of this structure |
| CN203674087U (en) * | 2014-01-14 | 2014-06-25 | 德力西电气有限公司 | Protection cover rotating assembling structure and contactor with the structure |
-
2014
- 2014-01-14 CN CN201410015426.4A patent/CN103745886B/en active Active
-
2015
- 2015-01-13 BR BR112016015291-3A patent/BR112016015291B1/en active IP Right Grant
- 2015-01-13 RU RU2016125544A patent/RU2665470C2/en active
- 2015-01-13 WO PCT/CN2015/070569 patent/WO2015106672A1/en active Application Filing
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| JPH10189082A (en) * | 1996-12-24 | 1998-07-21 | Toshiba Corp | Terminal device of electric appliance |
| JP2000057921A (en) * | 1998-08-10 | 2000-02-25 | Fuji Electric Co Ltd | Electromagnetic contact |
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| CN201584375U (en) * | 2009-12-24 | 2010-09-15 | 厦门宏美电子有限公司 | Contactor with independent nut in terminal chamber |
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| WO2015106672A1 (en) * | 2014-01-14 | 2015-07-23 | 德力西电气有限公司 | Protective cover for increasing insulating property of contactor, and shell structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015106672A1 (en) | 2015-07-23 |
| RU2016125544A3 (en) | 2018-06-27 |
| RU2665470C2 (en) | 2018-08-30 |
| CN103745886B (en) | 2015-11-25 |
| RU2016125544A (en) | 2018-02-20 |
| BR112016015291B1 (en) | 2022-05-10 |
| BR112016015291A2 (en) | 2017-08-08 |
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