CN105448600B - A kind of miniature electro-magnetic relay - Google Patents
A kind of miniature electro-magnetic relay Download PDFInfo
- Publication number
- CN105448600B CN105448600B CN201511027236.5A CN201511027236A CN105448600B CN 105448600 B CN105448600 B CN 105448600B CN 201511027236 A CN201511027236 A CN 201511027236A CN 105448600 B CN105448600 B CN 105448600B
- Authority
- CN
- China
- Prior art keywords
- chute
- pushing block
- yoke
- divider wall
- contact group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a kind of miniature electro-magnetic relay, including magnetic circuit system, contact system, pushing block, case, pedestal, magnetic circuit system includes electromagnetic system and armature, electromagnetic system includes iron core, yoke, contact system includes quiet contact group and dynamic contact group, pedestal includes the magnetic circuit system installation portion of relay, contact system installation portion, the first divider wall is provided between electromagnetic system and contact system, it is provided with to install the first pushing block chute of pushing block on first divider wall, feature is that pushing block includes main part, it is arranged on first flange part and the second flange part at main part both ends, the first boss to be connected with armature is provided with the outer face of first flange part, the second boss to be connected with dynamic contact group is provided with the outer face of second flange part；Advantage is relay assembling simple and fast, it is easy to accomplish automated production, manufacturing cost is low, small volume and good insulation preformance, has a wide range of application and works more reliable.
Description
Technical field
The present invention relates to a kind of relay, more particularly to a kind of miniature electro-magnetic relay.
Background technology
Relay is a kind of using extensive electronic component, and it is applied to household electrical appliance, automobile, Industry Control, power train
The fields such as system, communication device, have between dielectric withstanding voltage requirement, particularly input and output end in relay technical performance index
Dielectric withstanding voltage require higher, generally use increase the method for input and the distance between output end increase input with it is defeated
Go out creep age distance between holding and improve dielectric withstanding voltage between input and output end, but can so cause the profile chi of relay
Very little increase, and use demand for development relay small volume, highly sensitiveization, good insulation preformance, the reliable operation of the complete machine of relay
Property it is high and cost is low.
The content of the invention
It is low that the technical problems to be solved by the invention are to provide a kind of assembling simple and fast, manufacturing cost, small volume and absolutely
Edge performance is good, has a wide range of application and the more reliable miniature electro-magnetic relay that works.
Technical scheme is used by the present invention solves above-mentioned technical problem：A kind of miniature electro-magnetic relay, including magnetic circuit
System, contact system, pushing block, case, pedestal, described magnetic circuit system include electromagnetic system and armature, described electromagnetic system
System includes iron core, yoke, and described contact system, which includes quiet contact group and dynamic contact group, described pedestal, includes the magnetic of relay
Road system installation portion, contact system installation portion, first is provided between described electromagnetic system and described contact system and is isolated
Wall, it is provided with the first described divider wall that the first pushing block chute of described pushing block, described pushing block are installed
Including main part, first flange part and the second flange part at described main part both ends are arranged on, the first described flange part
The first boss to be connected with described armature is provided with outer face, is provided with the outer face of the second described flange part
To the second boss being connected with the dynamic contact group in described contact system.
Described the first flange part and the second flange part is respectively arranged with projection at least one phase homonymy, so,
During install housing, a madial wall of case and convexing to form for pushing block are slidably matched, pushing block flexible movements during work, simultaneously
Assembling location requirement is met with improving electrical performance demands, in addition, and the side wall of case plays located lateral to pushing block
Effect.
Be wholely set the first convex tendon on the inner roof wall of described case, the first described convex tendon extend downwardly be placed in it is described
Contact system and the first described divider wall between, so, input and output end have been carried out it is further isolate, input
Creep age distance between end and output end is also further increased.
Relay can be inevitably by shock and vibration, for non-conversion type contact during handling, transport etc.
The relay of form, quiet contact group is not provided with behind contact group because it is moved, the amplitude that dynamic contact group is rearward swung when rocking
It cannot limit, dynamic contact spring is just easily plastically deformed, and then influences the service behaviour of relay contact, or even occurs to touch
The contact failure of point, therefore, has been wholely set the second convex tendon, the second described convex tendon extends downwardly on the roof of described case
Close to the rear side of the dynamic contact group of described contact system, so, the second convex tendon is at dynamic contact group rear to moving contact group
Swing has carried out spacing, and movable contact spring will not be plastically deformed, and ensure the contact performance of relay contacts group.
The 3rd boss mutually to be amplexiformed with the first described divider wall is provided with the roof of described case, it is described
The technique sprue gate boss of case is arranged on the roof of described case, is mutually amplexiformed with the first described divider wall after assembling,
So, in vertical direction obtained spacing guarantee after case assembling, be not in because case caused by sliding down relay its
The assembly precision of its parts.
One end of the first described divider wall is wholely set the isolation bending of oriented described magnetic circuit system installation portion extension
Portion, the notch of the first described pushing block chute are arranged on the other end of the first described divider wall, described contact system peace
The second divider wall is provided between dress portion and the first described divider wall, is provided with the second described divider wall and described
The second corresponding pushing block chute of one pushing block chute, the upper cell wall of the first described pushing block chute and described second push away
The upper cell wall of motion block chute is by guide wall integrally connected, and so, pushing block loads the first pushing block chute and second simultaneously to be pushed away
Motion block chute, the balance of the assembling of pushing block is good, and pushes to slide motion block chute, the second pushing block chute and guide wall first
Guiding under, pushing block improves the workability of the workpiece in magnetic circuit system and contact system by the requirement stable transmission of design
Can, so as to optimize the Technique performance parameter of relay, such as so that center alignment when contact sets contact, when avoiding work
Generation arcing is splashed；In addition, the second divider wall is also isolated to input with output end, further increase input with
Creep age distance and dielectric withstanding voltage between output end.
Described the first divider wall, the second described divider wall are wholely set with described pedestal, so, reduce relay
The cost of device part processing, simplifies the assembling on the production line of relay；In addition, can be in advance to electromagnetism relay in the design phase
In the case of the pedestal mechanical parameter design control of device, it is possible to the technical performance for the electromagnetic relay that control has been assembled well
Parameter so that the first-pass yield in production line of electromagnetic relay is improved, and quality PPM values are controlled in relatively low numerical value.
Described magnetic circuit system installation portion is provided with to install the yoke chute of described yoke, described contact system
Installation portion is provided with to assemble the dynamic contact group chute of described dynamic contact group and to assemble the quiet of described quiet contact group
Contact group chute, the notch of described dynamic contact group chute, the notch of described quiet contact group chute, described yoke chute
Notch loads the installation side of slipping into of the first pushing block chute positioned at the relative both sides of described pedestal, described pushing block respectively
Yoke described in the installation for loading the second described pushing block chute to, described pushing block slips into direction, described yoke loads
The installation of iron chute slips into direction, described quiet contact is assembled into the installation of described quiet contact group chute and slips into direction, described
Dynamic contact be assembled into the installation of described dynamic contact group chute to slip into direction mutually parallel, so, assemble and give birth in relay
In producing line, the part of relay, part with pedestal when assembling, other zero in the case where pedestal one-time positioning is constant
Part sequentially distinguishes clamping in same axial and loads pedestal, simplifies the assembling on the production line of relay, operates
It is very convenient, and the fully-automatic production of relay is easily achieved, substantially increase the efficiency of relay production.
Described armature is arranged on the top of described iron core and is connected with knife-edge part of the described yoke in yoke, institute
The armature stated is bent downwards in junction, influences relay to shift relay armature after by big impact shock
The service behaviour of device, the 4th boss has been wholely set on the roof of described case, and the 4th described boss extends to described
The top of the kink of armature.
Be fixedly installed spring leaf on described yoke, described spring leaf include Access Division, rebate and to institute
The connecting portion that the yoke stated is connected, the outer middle side part of the kink of described armature are provided with-groove, described spring leaf
Access Division is connected in the groove of described armature, and so, in the work of relay, armature can be with the help of spring leaf
Overcome armature gravity and completely return to, it is more sensitive also, normally closed quiet for having also make it that movable contact discharges with normally opened stationary contact
For the relay of contact, the contact force after movable contact return with normal-closed end has guarantee, and the electric property of relay obtains
Optimization.
The bottom land of described yoke chute is provided with yoke positioning boss, is provided with described yoke and described yoke
The corresponding breach of positioning boss, so, electromagnetic system can preferably be positioned in vertical direction.
Compared with prior art, the advantage of the invention is that：Electricity is provided with first between electromagnetic system and contact system
Divider wall, it is provided with the first divider wall that the first pushing block chute of pushing block is installed, pushing block includes main part, set
The first flange part and the second flange part at main part both ends, it is provided with to be connected with armature on the outer face of the first flange part
First boss, be provided with the outer face of the second flange second convex to be connected with the dynamic contact group in contact system
Platform, thus carried out between electromagnetic system and contact system it is good isolate, and the first flange part of pushing block and second convex
Edge all considerably increases the creep age distance between electromagnetic system and contact system, is being required relatively small relay profile
Under size condition, the dielectric withstanding voltage between relay input and output end remains to the requirement for meeting VDE safety certifications, Ke Yiying
The high field of insulation safety requirement is used, is expanded using market.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the embodiment of the present invention；
Fig. 2 is that the embodiment of the present invention removes the dimensional structure diagram after case；
Fig. 3 is the first dimensional structure diagram of the pedestal in the embodiment of the present invention；
Fig. 4 is the second dimensional structure diagram of the angle different from Fig. 3 of the pedestal in the embodiment of the present invention；
Fig. 5 is the bottom view of the embodiment of the present invention；
Fig. 6 is Fig. 5 A-A to schematic cross-sectional view；
Fig. 7 is the first dimensional structure diagram of the electromagnetic system in the embodiment of the present invention；
Fig. 8 is the second dimensional structure diagram of the angle different from Fig. 7 of the electromagnetic system in the embodiment of the present invention；
Fig. 9 is the first dimensional structure diagram of the pushing block in the embodiment of the present invention；
Figure 10 is the second dimensional structure diagram of the angle different from Fig. 9 of the pushing block in the embodiment of the present invention；
Figure 11 is the dimensional structure diagram of the case in the embodiment of the present invention；
Figure 12 is the dimensional structure diagram of the armature in the embodiment of the present invention；
Figure 13 is the assembling schematic diagram of the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one：
As illustrated, a kind of miniature electro-magnetic relay, including magnetic circuit system 1, contact system 2, pushing block 3, case 4, base
Seat 5, magnetic circuit system 1 include electromagnetic system 11 and armature 12, and electromagnetic system 11 includes iron core 111, yoke 112, and contact system 2 wraps
Quiet contact group 21 and dynamic contact group 22 are included, pedestal 5 includes magnetic circuit system installation portion 51, the contact system installation portion 52 of relay,
The first divider wall 6 is provided between electromagnetic system 11 and contact system 2, is provided with that pushing block 3 is installed on the first divider wall 6
The first pushing block chute 62, it is curved that one end of the first divider wall 6 is wholely set the isolation that oriented magnetic circuit system installation portion 51 extends
Folding part 61, the notch of the first pushing block chute 62 are arranged on the other end of the first divider wall 6, contact system installation portion 52 and first
The second divider wall 7 is provided between divider wall 6, corresponding with the first pushing block chute 62 is provided with the second divider wall 7
The upper cell wall of two pushing block chutes 71, the upper cell wall of the first pushing block chute 62 and the second pushing block chute 71 passes through guide wall 8
Integrally connected, the first divider wall 6, the second divider wall 7 are wholely set with pedestal 5, and magnetic circuit system installation portion 51 is provided with to pacify
The yoke chute 511 of yoke 112 is filled, contact system installation portion 52 is provided with to assemble the dynamic contact group chute of dynamic contact group 22
521 and to assemble the quiet contact group chute 522 of quiet contact group 21, move the notch of contact group chute 521, quiet contact group chute
522 notch, the notch of yoke chute 511 are respectively positioned at the relative both sides of pedestal 5 so that pushing block 3 loads the first pushing block
The installation that the installation of chute 62 slips into direction, the second pushing block chute 71 of loading of pushing block 3 slips into direction, yoke 112 loads yoke
The installation of iron chute 511 slips into direction, quiet contact group 21 loads the installation of quiet contact group chute 522 and slips into direction, dynamic contact group
22 installations for loading dynamic contact group chute 521 slip into that direction is mutually parallel, and the bottom land of yoke chute 511 is provided with yoke positioning
Boss 512, is provided with the breach 1121 corresponding with yoke positioning boss 512 on yoke 112, pushing block 3 include main part 31,
First flange part 32 and the second flange part 33 at 31 both ends of main body are arranged on, use is provided with the outer face of the first flange part 32
With the first boss 34 being connected with armature 12, it is provided with the outer face of the second flange part 33 to be connected with dynamic contact group 22
Second boss 35, the first flange part 32 and the second flange part 33 are respectively arranged with projection 36 at least one phase homonymy.
The first convex tendon 41 is wholely set on the roof of case 4, the first convex tendon 41, which extends downwardly, is placed in contact system 2 and
Between one divider wall 6, the second convex tendon 42 is wholely set on the roof of case 4, the second convex tendon 42 extends downward close to contact system
The rear side of the dynamic contact group 22 of system 2, the 3rd boss to be amplexiformed with the phase of the first divider wall 6 is provided with the roof of case 4
43, the technique sprue gate boss 44 of case 4 is arranged on the roof of case 4, is amplexiformed after assembling with the phase of the first divider wall 6, armature
12 are arranged on the top of iron core 111 and are connected with knife-edge part of the yoke 112 in yoke 112, and armature 12 is turned under in junction
To roll over, the 4th boss 45 has been wholely set on the roof of case 4, the 4th boss 45 extends to the top of the kink 121 of armature 12,
Spring leaf 9 is fixedly installed on yoke 112, spring leaf 9 includes Access Division 91, installation portion 92 and to be connected with yoke 112
Rebate 93, the outer middle side part of the kink of armature 12 is provided with groove 122, and the Access Division 93 of spring leaf 9 is connected to armature
In 12 groove 122.
Embodiment two：
Technical characteristic is identical with embodiment one, and its difference is integrally to be not provided with the second convex tendon on the roof of case 4
42。
Above example on relay assembling line, when being assembled with pedestal 5 such as scheme by the part of relay, part
Shown in 13, in the case where the one-time positioning of pedestal 5 is constant, pushing block 3, dynamic contact group 22, quiet contact group 21, electromagnetic system 11,
Armature 12 is sequentially respectively charged into pedestal 5 in same axial, simplifies the assembling on the production line of relay, operates
It is very convenient, and the fully-automatic production of relay is easily achieved, substantially increase the efficiency of relay production；In addition, designing
Stage designs control to the pedestal mechanical parameter of electromagnetic relay in advance, it is possible to the electromagnetism relay that control assembling is completed well
The Technique performance parameter of device, the first-pass yield in production line of such electromagnetic relay are improved, quality PPM values control compared with
In low numerical value.
Claims (9)
1. a kind of miniature electro-magnetic relay, including magnetic circuit system, contact system, pushing block, case, pedestal, described magnetic circuit system
System includes electromagnetic system and armature, and described electromagnetic system includes iron core, yoke, described contact system include quiet contact group with
Dynamic contact group, described pedestal include magnetic circuit system installation portion, the contact system installation portion of relay, described electromagnetic system and
The first divider wall is provided between described contact system, is provided with that described promotion is installed on the first described divider wall
First pushing block chute of block, one end of the first described divider wall are wholely set oriented described magnetic circuit system installation portion extension
Isolation kink, it is characterised in that the notch of the first described pushing block chute is arranged on the another of the first described divider wall
End, the second divider wall, the described second isolation are provided between described contact system installation portion and the first described divider wall
The second pushing block chute corresponding with the first described pushing block chute is provided with wall, the first described pushing block chute
The upper cell wall of upper cell wall and the second described pushing block chute includes main body by guide wall integrally connected, described pushing block
Portion, the first flange part and the second flange part for being arranged on described main part both ends, on the outer face of the first described flange part
Be provided with the first boss to be connected with described armature, be provided with the outer face of the second described flange part to institute
The second boss that the dynamic contact group stated is connected.
2. a kind of miniature electro-magnetic relay according to claim 1, it is characterised in that the first described flange part and second
Flange part is respectively arranged with projection at least one phase homonymy.
3. a kind of miniature electro-magnetic relay according to claim 1, it is characterised in that one on the inner roof wall of described case
Body is provided with the first convex tendon, the first described convex tendon extend downwardly be placed in described contact system and the first described divider wall it
Between.
4. a kind of miniature electro-magnetic relay according to any one of claim 1 to 3, it is characterised in that described case
The second convex tendon is wholely set on inner roof wall, the second described convex tendon extends downward close to the dynamic contact group of described contact system
Rear side.
5. a kind of miniature electro-magnetic relay according to claim 1, it is characterised in that set on the roof of described case
There is the 3rd boss mutually to be amplexiformed with the first described divider wall, the technique sprue gate boss of described case is arranged on described
Case roof on, mutually amplexiformed with the first described divider wall after assembling.
6. a kind of miniature electro-magnetic relay according to claim 5, it is characterised in that described the first divider wall, described
Second divider wall is wholely set with described pedestal.
7. a kind of miniature electro-magnetic relay according to claim 5, it is characterised in that described magnetic circuit system installation portion is set
It is equipped with to install the yoke chute of described yoke, described contact system installation portion is provided with to assemble described dynamic connect
Touch the dynamic contact group chute of group and to assemble the quiet contact group chute of described quiet contact group, described dynamic contact group chute
Notch, the notch of described quiet contact group chute, the notch of described yoke chute are located at relative two of described pedestal respectively
Side, the installation that described pushing block loads the first pushing block chute slips into direction, described pushing block loads described second and pushed away
The installation of motion block chute slips into direction, described yoke loads the installation of described yoke chute and slips into direction, described quiet connects
The installation for touching the quiet contact group chute described in being assembled into slips into direction, described dynamic contact is assembled into described dynamic contact group chute
Installation to slip into direction mutually parallel.
8. a kind of miniature electro-magnetic relay according to claim 1, it is characterised in that described armature is arranged on described
The top of iron core and it is connected with knife-edge part of the described yoke in yoke, described armature is bent downwards in junction, described
Case roof on be wholely set the 4th boss, the 4th described boss extends to the upper of the kink of described armature
Side.
9. a kind of miniature electro-magnetic relay according to claim 8, it is characterised in that be fixedly installed on described yoke
Spring leaf, described spring leaf include Access Division, rebate and the connecting portion to be connected with described yoke, described rank
The outer middle side part of the kink of iron is provided with groove, and the Access Division of described spring leaf is connected in the groove of described armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027236.5A CN105448600B (en) | 2015-12-31 | 2015-12-31 | A kind of miniature electro-magnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027236.5A CN105448600B (en) | 2015-12-31 | 2015-12-31 | A kind of miniature electro-magnetic relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105448600A CN105448600A (en) | 2016-03-30 |
| CN105448600B true CN105448600B (en) | 2017-11-24 |
Family
ID=55558681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511027236.5A Active CN105448600B (en) | 2015-12-31 | 2015-12-31 | A kind of miniature electro-magnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105448600B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183051B (en) * | 2018-02-11 | 2024-02-20 | 厦门宏发电声股份有限公司 | High temperature resistant relay base structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3988271B2 (en) * | 1998-08-31 | 2007-10-10 | 松下電工株式会社 | Electromagnetic relay |
| CN201667321U (en) * | 2010-04-12 | 2010-12-08 | 宁波天波港联电子有限公司 | Relay |
| CN201966148U (en) * | 2011-03-04 | 2011-09-07 | 厦门宏发电声股份有限公司 | Electromagnetic relay |
| CN202549741U (en) * | 2012-03-19 | 2012-11-21 | 深圳市元则电器有限公司 | Relay |
| CN104201056A (en) * | 2014-08-07 | 2014-12-10 | 宁波福特继电器有限公司 | Small electromagnetic relay |
| CN205452183U (en) * | 2015-12-31 | 2016-08-10 | 宁波福特继电器有限公司 | Miniature electromagnetic relay |
-
2015
- 2015-12-31 CN CN201511027236.5A patent/CN105448600B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3988271B2 (en) * | 1998-08-31 | 2007-10-10 | 松下電工株式会社 | Electromagnetic relay |
| CN201667321U (en) * | 2010-04-12 | 2010-12-08 | 宁波天波港联电子有限公司 | Relay |
| CN201966148U (en) * | 2011-03-04 | 2011-09-07 | 厦门宏发电声股份有限公司 | Electromagnetic relay |
| CN202549741U (en) * | 2012-03-19 | 2012-11-21 | 深圳市元则电器有限公司 | Relay |
| CN104201056A (en) * | 2014-08-07 | 2014-12-10 | 宁波福特继电器有限公司 | Small electromagnetic relay |
| CN205452183U (en) * | 2015-12-31 | 2016-08-10 | 宁波福特继电器有限公司 | Miniature electromagnetic relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105448600A (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205452183U (en) | Miniature electromagnetic relay | |
| CN102891039B (en) | Relay | |
| CN105684246B (en) | Current transformer supporting arrangement and the switching device using the current transformer supporting arrangement | |
| CN105448600B (en) | A kind of miniature electro-magnetic relay | |
| CN104704595A (en) | Electromagnetic contactor | |
| CN104037026B (en) | A kind of magnetic latching relay | |
| CN204102812U (en) | A kind of miniature electro-magnetic relay | |
| CN201072732Y (en) | Minitype single group normal closing type relay | |
| CN104201056B (en) | A kind of miniature electro-magnetic relay | |
| EP3226358A1 (en) | Time relay socket | |
| CN104037023B (en) | electromagnetic relay and method for manufacturing the same | |
| CN104979141B (en) | Breaker | |
| CN101178994B (en) | Circuit breaker | |
| CN1269167C (en) | Miniaturized great-power electromagnetic relay with upper and lower variable-section cavities | |
| CN206401238U (en) | A kind of double-pole single-throw (D.P.S.T.) magnetic of microminiature 16A grades of load keeps electromagnetic relay | |
| CN111725032A (en) | Clapper type electromagnetic relay with horizontal magnetic circuit structure | |
| EP2691970B1 (en) | Modular electrical switch | |
| CN202855607U (en) | Three-position combination switch | |
| CN102064058B (en) | Electric protection device | |
| KR101741265B1 (en) | Apparatus and method for electromagnetic contactor | |
| CN204102810U (en) | A kind of pedestal that can simplify electromagnetic relay assembling | |
| CN108183051A (en) | A kind of heat safe relay base structure | |
| CN201975355U (en) | Protection switch | |
| CN201812758U (en) | Electromagnetic relay | |
| CN204117997U (en) | A kind of integral type 3P+N residual current circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |