CN101442191B - Contactor with peripheral surge restraining unit - Google Patents
Contactor with peripheral surge restraining unit Download PDFInfo
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- CN101442191B CN101442191B CN2007101874099A CN200710187409A CN101442191B CN 101442191 B CN101442191 B CN 101442191B CN 2007101874099 A CN2007101874099 A CN 2007101874099A CN 200710187409 A CN200710187409 A CN 200710187409A CN 101442191 B CN101442191 B CN 101442191B
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- surge restraining
- shrinkage pool
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Abstract
The invention provides a contactor, which comprises a bed unit and a base unit, wherein a special space and a fixing device for installing and fixing a pluggable surge-inhibiting unit are prearranged outside one side of the bed unit; a supporting structure and a fixing structure are arranged on the outer wall of the special space of the bed unit; and another supporting structure matched with the supporting structure on the bed unit and another fixing structure matched with the fixing structure on the bed unit are arranged on the surge-inhibiting unit and are used for fixing the surge-inhibiting unit on the bed unit without freely falling away. The contactor solves a series of defects such as easy damage, short service life, waste of installation space, poor safety and poor reliability which are caused by the poor heat dissipation, unreliable fixation and other reasons of the prior surge-inhibiting unit, and provides the contactor with high reliability, small installation space, convenient assembly/disassembly and wider application.
Description
Technical field
The present invention relates to a kind of contactor with surge restraining unit, particularly a kind of have the space of peripheral surge restraining unit and a contactor of fixture.
Background technology
Surge restraining unit is to protect the vitals of contactor coil by suppressing overvoltage; described overvoltage is the important hidden danger that burns out the electronic devices and components in the contactor; and described overvoltage is the unusual generation of electrical network appearance; be inevitable; therefore, the important function of surge restraining unit is to protect contactor not burnt out, prolong the useful life of contactor, the safe class of raising contactor etc.
Surge restraining unit is formed by being installed in electronic components such as capacitor in the contactor housing and fixed resistor.General fixed resistor is carbon film resistor, metal film resistor or carbon-point resistor, wherein carbon film resistor and metal film resistor are fragile when heavy current impact, and the carbon-point resistor can not bear the impact of big voltage, therefore, when the big surge current of frequent generation, fixed resistor is easy to be burnt out, and belongs to one of consumable accessory of surge restraining unit.Yet, because surge restraining unit is arranged in the housing of contactor,, needs the professional to open contactor and overhaul or change so in a single day its parts damage, time-consuming taking a lot of work, very inconvenient.For this reason, people have adopted the external hanging type surge restraining unit that is arranged on contactor housing outside, when surge restraining unit breaks down, only need to change surge restraining unit, do not need to be operated by the professional.Another advantage of external hanging type surge restraining unit is that the permission user can select whether dispose surge restraining unit according to the use needs of contactor, can select dissimilar surge restraining units for use in same contactor product.The external hanging type surge restraining unit is more conducive to heat radiation with respect to built-in surge restraining unit, and can not be subjected to the influence of coil heating.
But there are two big technological deficiencies in existing contactor.At first be because contactor itself is not provided with or does not reserve the space of enough big plug-in surge restraining unit, the institute so that surge restraining unit have nowhere live, have to enlarge the required installing space that occupies of contactor, this causes the waste of distribution box installing space, even contactor can't be used under the limited occasion in some spaces.The secondth, because contactor itself is not provided with the fixture that plug-in surge restraining unit is installed, the institute so that surge restraining unit can't fix, have to adopt unreliable and non-resistant fixed forms such as self-adhesive paper is bonding, binding post overlap joint, under environmental impacts such as vibrations or temperature, humidity, surge restraining unit is easy to come off, make being electrically connected between surge restraining unit and the contactor be easy to disconnect, have a strong impact on contactor security of products and reliability, also limited the purposes of contactor product thus greatly.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, a kind of contactor with peripheral surge restraining unit of plug type is provided, required installing space is little, simple in structure and easy to loading and unloading, and fail safe and reliability height, long service life, of many uses.
To achieve these goals, the contactor with peripheral surge restraining unit of the present invention has adopted following technical scheme.
Described contactor comprises base unit and base unit, is provided with the private space that holds pluggable surge restraining unit in a side outside of base unit, and this private space is surrounded by a upper surface and a side of base unit at least.Supporting structure comprises first supporting structure, second supporting structure two parts, and first supporting structure is arranged on the outer wall of private space side of base unit, is used for installing and the supporting surge restraining unit; First fixed structure is arranged on the outer wall of private space side of base unit, is used for installing and fixing surge restraining unit.Second supporting structure that is complementary with the above first supporting structure of base unit and second fixed structure that is complementary with the above first fixed structure of base unit, be arranged on the described surge restraining unit, this second supporting structure is used for the surge restraining unit mounting support at base unit, and this second fixed structure is used for surge restraining unit can not be fixed on base unit with freely deviating from.
The guideway that the described supporting structure that is arranged on base unit and the surge restraining unit is made up of guide rail chute and guide rail slide block, the described fixed structure that is arranged on base unit and the surge restraining unit is made up of shrinkage pool structure, bulge-structure and at least one elastic deformation structure.Described shrinkage pool structure comprises that anti-avulsion wall that a shrinkage pool that can hold the projection on the bulge-structure, one be used to stop projection and freely deviate from the shrinkage pool, one are used for the thrustwall that projection is spacing and a smooth surface that is used for the structural curved sliding surface of expression lobes.Comprise described bulge-structure a projection, one match with the anti-avulsion wall is used to stop the curved sliding surface of blocking surface that projection freely deviates from the shrinkage pool and and the structural smooth surface mutual extrusion of shrinkage pool.In the process of loading and unloading surge restraining unit, all by smooth surface and curved sliding surface mutual extrusion, force distressed structure generation strain, so that produce elasticity dislocation displacement between anti-avulsion wall and the blocking surface, thereby the realization projection enters shrinkage pool or deviates from by force in shrinkage pool.
The form of the guideway of described supporting structure is rectangle, L shaped, T shape, C shape, U-shaped, V-arrangement or swallow-tail form.The guide rail slide block is inserted the guide rail chute and along installation direction B surge restraining unit pushed the private space of base unit outside, projection is entered in the shrinkage pool, thereby surge restraining unit is fixed in the private space on the base unit freely to deviate from; Firmly extract and make projection in shrinkage pool, to deviate from by force along the rightabout of installation direction B surge restraining unit, just the base unit of surge restraining unit from contactor can be unloaded.
The guide rail chute of the guideway of described supporting structure can be arranged on the base unit, and the guide rail slide block is arranged on the surge restraining unit, or the guide rail chute of the guideway of described supporting structure is arranged on the surge restraining unit, and the guide rail slide block is arranged on the base unit.Be provided with two boss in the both sides of surge restraining unit, for finger grip.
The shrinkage pool structure of described fixed structure can be arranged on (being first fixed structure) on the base unit, and bulge-structure is arranged on (i.e. second fixed structure) on the surge restraining unit.Or the shrinkage pool structure of described fixed structure is arranged on (i.e. second fixed structure) on the surge restraining unit, and bulge-structure is arranged on (i.e. second fixed structure) on the base unit.
Being connected between the structural anti-avulsion wall of described shrinkage pool and the smooth surface is smooth cambered surface, so that projection can successfully be deviate from shrinkage pool by force; Being connected between the blocking surface on the described bulge-structure and the curved sliding surface is smooth cambered surface, so that projection can successfully be deviate from shrinkage pool by force.Described elastic deformation structure can be arranged on the pecker that is connected as a single entity with projection, blocking surface, curved sliding surface on the bulge-structure, or be arranged on the structural ligulate arm that is connected as a single entity with anti-avulsion wall, smooth surface of shrinkage pool, or be arranged on pecker and the structural ligulate arm of shrinkage pool on the bulge-structure, when smooth surface and curved sliding surface mutual extrusion, pecker/ligulate arm/ligulate arm and pecker are forced to take place strain simultaneously, force projection and blocking surface generation elasticity dislocation displacement.
Description of drawings
Fig. 1 is the schematic appearance of the embodiment of contactor of the present invention.
Fig. 2 is the installation principle schematic of surge restraining unit of the embodiment of contactor of the present invention.
Fig. 3 is the structural representation of fixture of surge restraining unit of the embodiment of contactor of the present invention.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the schematic appearance of fixture of surge restraining unit of the embodiment of contactor of the present invention.
Fig. 6 is the schematic appearance of surge restraining unit of the embodiment of contactor of the present invention.
Fig. 7 is the surge restraining unit of embodiment of contactor of the present invention and the assembling principle schematic of fixture.
Embodiment
Below in conjunction with the embodiment shown in the accompanying drawing 1-7, describe the contactor with surge restraining unit of the present invention in detail, the invention is not restricted to following description to specific embodiment.
Fig. 1 is the schematic appearance of the embodiment of contactor of the present invention, and Fig. 2 is the installation principle schematic of surge restraining unit.As shown in Figure 1, 2, contactor of the present invention comprises base unit 10 and position base unit 40 thereon, is provided with the parts of realizing the various functions of contactor in base unit 10 and base unit 40.Peripheral surge restraining unit 30 is fixed on the top private space 12 interior (as shown in Figure 3) of base unit 10 outsides by pluggable mode.Shown in Figure 1 is that surge restraining unit 10 grafting are fixed on the state on the contactor.The state that shown in Figure 2 is after surge restraining unit 10 is pulled up from contactor.By Fig. 1,2 as seen, surge restraining unit 10 rationally distributed on contactor need not additionally to enlarge the required installing space that occupies of contactor.
Fig. 3, the 4th, the structural representation of the fixture of the surge restraining unit of the embodiment of contactor of the present invention and cutaway view.Shown in Fig. 3,4, the private space 12 that surge restraining unit 30 is installed is arranged on the outside of base unit 10 upsides, and it is surrounded by the upper surface on the base unit 10 13, side 19.As shown in Figure 3, on described base unit 10, be provided with first supporting structure of forming by guide rail chute 15, be used for supporting and surge restraining unit 30 is installed.As shown in Figure 4, on base unit 10, also be provided with first fixed structure, this first fixed structure is used to install and fix peripheral surge restraining unit 30 by the shrinkage pool structure that comprises that shrinkage pool 16 is formed.
Fig. 6 is the schematic appearance of surge restraining unit of the embodiment of contactor of the present invention.As shown in Figure 6, on an outer surface 33 of surge restraining unit 30, be provided with second supporting structure of forming by guide rail slide block 31, first supporting structure on this second supporting structure and the base unit 10 mates mutually, that is to say, during installation, guide rail slide block 31 inserts in the guide rail chute 15 on the contactor base units 10, with surge restraining unit 30 mounting supports on base unit 10.On surge restraining unit 30, also be provided with second fixed structure, this second fixed structure is by comprising projection 32 bulge-structures of forming, the first fixed structure of this second fixed structure and base unit 10 mates mutually, that is to say, during installation, in projection 32 shrinkage pools 16 that push on the base unit 10, thereby surge restraining unit 30 is fixed on the base unit 10 securely, and can not freely deviates from.
3-6 can find out in conjunction with the accompanying drawings, the described supporting structure of being made up of guide rail chute 15 on the base unit 10 and the guide rail slide block 31 on the surge restraining unit 30 is the Rectangle guide auxiliary structure, wherein, the cross sectional shape of guide rail chute 15 is rectangle (as shown in Figure 3 23), and the cross sectional shape of guide rail slide block 31 is L shaped (as shown in Figure 6).Not hard to imagine, the cross sectional shape of secondary guide rail chute 15 of Rectangle guide or guide rail slide block 31 not only comprises rectangle and L shaped, but also can comprise other shape of being made up of a plurality of rectangles, as T shape (not shown).The described supporting structure of being made up of guide rail chute 15 and guide rail slide block 31 can also be V-type rail pair, C type guideway, U type guideway or dove-tail form guideway (not shown), the guideway of the embodiment shown in all alternative Fig. 3-6 of these guideways.In sum, the common feature of the various guideways of being made up of guide rail chute 15 and guide rail slide block 31 is: have a guide rail chute at least or have at least the cross sectional shape (being the shape of guideway) of a guide rail slide block to be rectangle or L shaped or T shape or C shape or U-shaped or V-arrangement or swallow-tail form.Guide rail chute 15 by the supporting structure of the embodiment shown in Fig. 3-6 be arranged on (first supporting structure) on the base unit 10, and guide rail slide block 31 is arranged on (second supporting structure) on the surge restraining unit 30.Not hard to imagine, another kind of alternative scheme is that the guide rail chute 15 of described supporting structure also can be arranged on (second supporting structure) on the surge restraining unit 30, and guide rail slide block 31 is arranged on (first supporting structure) on the base unit 10.Guide rail chute 15 by the supporting structure of the embodiment shown in Fig. 3-6 is 2, and guide rail slide block 31 also is 2, and is not hard to imagine, and the alternative scheme of another kind of the present invention is, the guide rail chute 15 of described supporting structure is 1, and guide rail slide block 31 also can be 1.For example, the chute that two cross sections are C shape can be formed a circular port, and the slide block that two cross sections are C shape can be formed a circular columns, can form a circular port/column type guideway by circular port and circular columns.For another example, the chute that two cross sections are V-arrangement can be formed a prismatic or square hole, and the slide block of two V-arrangements can be formed a prismatic or square post, by prismatic or square hole and post, can form a prismatic or square hole/column type guideway.By parity of reasoning can release, no matter be rectangle, L shaped, T shape, C shape, U-shaped, V-arrangement or swallow-tail form, the guide rail chute of two identical or different shapes can be formed a hole, and the guide rail slide block of two identical or different shapes can be formed a post, can form a hole/column type guideway by hole and post.
In conjunction with the accompanying drawings 3-7 as can be known, described fixed structure is made up of shrinkage pool structure, bulge-structure and elastic deformation structure.
Described shrinkage pool structure comprises: a shrinkage pool 16 is used to hold projection 32 and enters; An anti-avulsion wall 21 is used to stop the projection 32 that has entered freely to deviate from shrinkage pool 16; A smooth surface 17 that is connected mutually with anti-avulsion wall 21, it pushes in the shrinkage pool 16 or the process of pulling out in shrinkage pool 16 in projection 32, can with curved sliding surface 322 mutual extrusion on the bulge-structure, force the elastic deformation structure that strain takes place; A thrustwall 20 is used for projection 32 simultaneously projection 32 being limited between thrustwall 20 and the anti-avulsion wall 21 pushing spacing on the direction.
Described bulge-structure comprises: the projection 32 that can enter shrinkage pool 16; A blocking surface 38, by the contact matching of this blocking surface 38 with the structural anti-avulsion wall 21 of shrinkage pool, stopping projection 32 can not freely deviate from shrinkage pool 16; A curved sliding surface 322 that is connected mutually with blocking surface 38, it pushes in the shrinkage pool 16 or the process of pulling out in shrinkage pool 16 in projection 32, can with structural smooth surface 17 mutual extrusion of shrinkage pool, force the elastic deformation structure that strain takes place.
Described elastic deformation structure can be arranged on the pecker 321 (as shown in Figure 7) on the bulge-structure, it is connected as a single entity with projection 32, blocking surface 38 and curved sliding surface 322, when extruding takes place with the structural smooth surface of shrinkage pool 17 in curved sliding surface 322 in the process of loading and unloading surge restraining unit 30, strain can take place in pecker 321, thereby make the blocking surface 38 on it that dislocation displacement take place, projection 32 is pushed in the shrinkage pool 16 or it is deviate from shrinkage pool 16 by force.
Described elastic deformation structure also can be arranged on the structural ligulate arm 171 of shrinkage pool, it and anti-avulsion wall 21 and smooth surface 17 are connected as a single entity, when smooth surface 17 in the process of loading and unloading surge restraining unit 30 with bulge-structure on curved sliding surface 322 when extruding takes place, strain can take place in ligulate arm 171, thereby make the anti-avulsion wall 21 on it that dislocation displacement take place, projection 32 is pushed in the shrinkage pool 16 or it is deviate from shrinkage pool 16 by force.
Further describe surge restraining unit 30 of the present invention below in conjunction with Fig. 2-7 and load and unload process and principle on the contactor.In the guide rail chute 15 on the guide rail slide block 31 insertion base units 10 of surge restraining unit 30, and, surge restraining unit 30 is pushed in the private space 12 of base unit 10 along B direction shown in Figure 2; In push-on process, the structural smooth surface 17 curved sliding surfaces 322 first and on the bulge-structure of shrinkage pool contact and mutual extrusion, force the elastic deformation structure that strain takes place, the dislocation displacement takes place between the blocking surface 38 on structural anti-avulsion wall 21 of shrinkage pool and the bulge-structure move thereby force; Continuation pushes surge restraining unit 30 in private space 12, up to smooth surface 17 and sliding surface 322 contact and push end, that is projection 32 enters the position of shrinkage pool 16, makes pecker 321 restore to the original state automatically, in projection 32 propelling shrinkage pools 16; At this state, blocking surface 38 on the bulge-structure is blocked by the structural anti-avulsion wall 21 of shrinkage pool, make projection 32 in shrinkage pool 16, freely not deviate from (as shown in Figure 7), thereby the specialty that surge restraining unit 30 is fixed on the base unit 10 is securely used in the space 12.When firmly surge restraining unit 30 being extracted in private space 12 along the rightabout of B direction shown in Figure 2, sliding surface 322 also comes in contact and mutual extrusion with smooth surface 17, force the elastic deformation structure that strain takes place, thereby make the dislocation displacement taking place between the blocking surface 38 on structural anti-avulsion wall 21 of shrinkage pool and the bulge-structure, extracts fully and disengaging mutually from base unit 10 up to surge restraining unit 30.
In order in the process of pushing and pulling, to be convenient to strength to be provided with two boss 50 (shown in Figure 2), for finger grip, the loading and unloading of surge restraining unit 30 are saved labour more, convenient in the both sides of surge restraining unit 30.
Can interconnect by the corresponding binding post that provides on the binding post that will provide on the surge restraining unit 30 and the contactor, realize being electrically connected between surge restraining unit 30 and the contactor.
Embodiments of the invention shown in Fig. 3-7, the shrinkage pool structure of its fixed structure is arranged on the base unit 10, and bulge-structure is arranged on the surge restraining unit 30.Not hard to imagine, the technical scheme of the embodiment shown in another kind of alternative Fig. 3-7 is: the shrinkage pool structure of its fixed structure is arranged on the surge restraining unit 30, and bulge-structure is arranged on the base unit 10.
Embodiments of the invention as shown in Figure 7, the elastic deformation structure of its fixed structure comprises and is arranged on the structural ligulate arm of shrinkage pool 171 and is arranged on pecker 321 on the bulge-structure.Not hard to imagine, two kinds of technical schemes of alternative embodiment shown in Figure 7 are: the elastic deformation structure of its fixed structure only comprises and is arranged on the structural ligulate arm 171 of shrinkage pool; Perhaps only comprise the pecker 321 that is arranged on the bulge-structure.That is to say that described elastic construction is made up of the pecker on the bulge-structure 321 or is formed or be made up of jointly the pecker 321 on structural ligulate arm 171 of shrinkage pool and the bulge-structure by the structural ligulate arm 171 of shrinkage pool.
For making things convenient for the loading and unloading of surge restraining unit, require projection 32 can not only under the effect of manual thrust, enter shrinkage pool 16 smoothly, and can also in manual process of extracting, successfully in shrinkage pool 16, deviate from by force.In order to satisfy these requirements, between the anti-avulsion wall 21 and smooth surface 17 of shrinkage pool structure, be provided with the cambered surface (not shown) of smooth linking, between the blocking surface 38 and curved sliding surface 322 of bulge-structure, be provided with the cambered surface (not shown) of smooth linking, and the shape and size of cambered surface design, can satisfy projection 32 requirements that enter shrinkage pool 16 smoothly, can satisfy projection 32 requirements that shrinkage pool 16 in, can not freely deviate from again, can also satisfy in the craft requirement that projection 32 can successfully be deviate from the shrinkage pool 16 by force when extracting.
Claims (10)
1. contactor with peripheral surge restraining unit, it comprises base unit (10) and base unit (40), it is characterized in that:
Be provided with the private space (12) that holds pluggable surge restraining unit (30) in a side outside of base unit (10), this private space (12) is surrounded by a upper surface (13) and a side (19) of base unit (10) at least;
Supporting structure comprises first supporting structure, second supporting structure; First supporting structure is arranged on the outer wall of private space side of base unit (10), is used for installing and supporting surge restraining unit (30);
Fixed structure comprises first fixed structure, second fixed structure; First fixed structure is arranged on the outer wall of private space side of base unit (10), is used for installing and fixing surge restraining unit (30);
Second supporting structure that is complementary with the above first supporting structure of base unit (10) and second fixed structure that is complementary with the above first fixed structure of base unit (10), be arranged on the described surge restraining unit (30), this second supporting structure is used for surge restraining unit (30) mounting support in base unit (10), and this second fixed structure is used for surge restraining unit (30) can not be fixed on base unit (10) with freely deviating from.
2. the contactor with peripheral surge restraining unit according to claim 1, it is characterized in that, the guideway that the described supporting structure that is arranged on base unit (10) and the surge restraining unit (30) is made up of guide rail chute (15) and guide rail slide block (31), the described fixed structure that is arranged on base unit (10) and the surge restraining unit (30) is made up of shrinkage pool structure, bulge-structure and at least one elastic deformation structure;
Described shrinkage pool structure comprises that a shrinkage pool (16) that can hold the projection (32) on the bulge-structure, one are used for stoping projection (32) to be used for protruding (32) spacing thrustwall (20) and smooth surface (17) that is used for the structural curved sliding surface of expression lobes (322) from interior the anti-avulsion wall of freely deviating from (21) of shrinkage pool (16), one;
Comprise described bulge-structure a projection (32), one match with anti-avulsion wall (21) is used for stoping projection (32) from the interior blocking surface of freely deviating from of shrinkage pool (16) (38) and one the curved sliding surface (322) with the structural smooth surface of shrinkage pool (17) mutual extrusion;
In the process of loading and unloading surge restraining units (30), all by smooth surface (17) and curved sliding surface (322) mutual extrusion, force distressed structure generation strain, so that produce elasticity dislocation displacement between anti-avulsion wall (21) and the blocking surface (38), thereby realize that projection (32) enters shrinkage pool (16) or it is deviate from by force in shrinkage pool (16).
3. the contactor with peripheral surge restraining unit according to claim 2, it is characterized in that, the guide rail chute (15) of the guideway of described supporting structure and guide rail slide block (31) be separately positioned on that base unit (10) is gone up and surge restraining unit (30) on, the form of the guideway of described supporting structure is rectangle, L shaped, T shape, C shape, U-shaped, V-arrangement or swallow-tail form.
4. the contactor with peripheral surge restraining unit according to claim 1 and 2 is characterized in that: be provided with two boss (50) for finger grip in the both sides of described surge restraining unit (30).
5. the contactor with peripheral surge restraining unit according to claim 2 is characterized in that: the shrinkage pool structure of described fixed structure and be separately positioned on the bulge-structure of this shrinkage pool structure matching effect that base unit (10) is gone up and surge restraining unit (30) on.
6. the contactor with peripheral surge restraining unit according to claim 5, it is characterized in that: being connected between the structural anti-avulsion wall of described shrinkage pool (21) and the smooth surface (17) is smooth cambered surface, so that projection (32) can successfully be deviate from shrinkage pool (16) by force.
7. the contactor with peripheral surge restraining unit according to claim 5, it is characterized in that: being connected between the blocking surface on the described bulge-structure (38) and the curved sliding surface (322) is smooth cambered surface, so that projection (32) can successfully be deviate from shrinkage pool (16) by force.
8. the contactor with peripheral surge restraining unit according to claim 2, it is characterized in that: described elastic deformation structure is arranged on the pecker (321) that is connected as a single entity with projection (32), blocking surface (38), curved sliding surface (322) on the bulge-structure, when smooth surface (17) and curved sliding surface (322) mutual extrusion, pecker (321) is forced to take place strain, forces projection (32) and blocking surface (38) that elasticity dislocation displacement takes place.
9. the contactor with peripheral surge restraining unit according to claim 2, it is characterized in that, described elastic deformation structure is arranged on the structural ligulate arm (171) that is connected as a single entity with anti-avulsion wall (21), smooth surface (17) of shrinkage pool, when smooth surface (17) and curved sliding surface (322) mutual extrusion, ligulate arm (171) is forced to take place strain, forces anti-avulsion wall (21) that elasticity dislocation displacement takes place.
10. the contactor with peripheral surge restraining unit according to claim 2, it is characterized in that, described elastic deformation structure is arranged on pecker (321) and the structural ligulate arm of shrinkage pool (171) on the bulge-structure, when smooth surface (17) and curved sliding surface (322) mutual extrusion, strain takes place in ligulate arm (171) and pecker (321) simultaneously, forces anti-avulsion wall (21) and blocking surface (38) that elasticity dislocation displacement takes place simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101874099A CN101442191B (en) | 2007-11-23 | 2007-11-23 | Contactor with peripheral surge restraining unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101874099A CN101442191B (en) | 2007-11-23 | 2007-11-23 | Contactor with peripheral surge restraining unit |
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| Publication Number | Publication Date |
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| CN101442191A CN101442191A (en) | 2009-05-27 |
| CN101442191B true CN101442191B (en) | 2011-09-07 |
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| CN2007101874099A Active CN101442191B (en) | 2007-11-23 | 2007-11-23 | Contactor with peripheral surge restraining unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104389876B (en) * | 2014-11-25 | 2019-02-01 | 厦门宏发开关设备有限公司 | Easy buckle structure |
| CN107799358A (en) * | 2017-11-23 | 2018-03-13 | 成都环磊科技有限公司 | A kind of contactor for possessing self-protection function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2609162Y (en) * | 2003-02-25 | 2004-03-31 | 刘年根 | Monolithic program controlled AC contactor |
| CN201122559Y (en) * | 2007-11-23 | 2008-09-24 | 浙江正泰电器股份有限公司 | Contactor equipped with surge restraining unit |
-
2007
- 2007-11-23 CN CN2007101874099A patent/CN101442191B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2609162Y (en) * | 2003-02-25 | 2004-03-31 | 刘年根 | Monolithic program controlled AC contactor |
| CN201122559Y (en) * | 2007-11-23 | 2008-09-24 | 浙江正泰电器股份有限公司 | Contactor equipped with surge restraining unit |
Non-Patent Citations (1)
| Title |
|---|
| JP平5-62578A 1993.03.12 |
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