CN2578965Y - Electromagnetic relay with up and down variable section structures - Google Patents
Electromagnetic relay with up and down variable section structures Download PDFInfo
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- CN2578965Y CN2578965Y CN 02287247 CN02287247U CN2578965Y CN 2578965 Y CN2578965 Y CN 2578965Y CN 02287247 CN02287247 CN 02287247 CN 02287247 U CN02287247 U CN 02287247U CN 2578965 Y CN2578965 Y CN 2578965Y
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Abstract
The utility model relates to an electromagnetic relay with an upper and a lower variable-section structures, which is provided with an electromagnetic system, a contact system, a frame, a pushing card and a casing, wherein the frame is provided with an upper and a lower variable-section cavities in which the contact system and a magnetic circuit system are respectively fixed. Because the contact system and the magnetic circuit system are respectively arranged in the upper and the lower variable-section cavities of the frame, an armature is in contact with a movable spring sheet of the contact system by the pushing card through a hole on the frame and the movable spring sheet is pushed so that contacts are switched. An isolation wall is arranged on the frame on the input end of the magnetic circuit system so that the isolation between the input and the output end is increased. Through reasonable space allocation, the electromagnetic relay has the advantages of small volume and compact structure, and simultaneously meets the high-isolation requirements of the VDE safety certification. Parts and components are clamped with each other so that the utility model has the advantages of simple assembly and accurate positioning, and is favorable for continuous mass production.
Description
The utility model relates to a kind of electromagnetic relay, and especially a kind of carrier part framework adopts the miniaturized variable-section high-power electromagnetic relay of section cavities design up and down.
Electromagnetic relay is used very extensive in various household electrical appliance, instrument, instrument and automatic control equipment as a kind of electromechanical compo.Current, a developing direction of electronic technology is exactly a high density packaging technique, dwindles machine volume, reduces production costs, and improves the market competitiveness.For satisfying the complete machine instructions for use, relay also develops towards miniaturization, high isolation, low-power consumption, antisurge, high-power direction.And existing typical small-sized high-power electromagnetic relay assembles the structure of moving the spring part after generally adopting circular riveted joint yoke unshakable in one's determination on yoke, this structure erection space is bigger, input with export between withstand voltagely generally have only 2500VAC, perhaps magnetic circuit system and contact system are divided into two parts, the centre separates with divider wall, withstand voltage improving, generally can reach about 4000VAC, they all exist structure compact inadequately, space utilization is insufficient, cause small product size inadequately little, the not high shortcoming of isolation.The CN1255233A patent application discloses a kind of relay with contact spring, and relay has electromagnet system and contact arrangement that has at least one quiet contact spring and at least one moving contact spring of a matrix, belt coil, iron core and an armature.The plate that this contact spring makes the plane respectively with do not have permanent bend to approach at identical plane internal fixation in this matrix.This contact spring is realized the closing of contact by the overlap joint of L shaped end section; In addition, quiet contact spring produces pre-stretching by a corresponding backstop on the matrix.The small-sized high-power sensitive-type direct current electromagnetic relay of a kind of Very Low Clearance of CNZL012207489 patent disclosure.Mainly form by contact system, magnetic circuit system, base and shell.Contact system comprises static contact spring piece, U-shaped movable contact spring, and inserts in the base by the guide groove on the base, and the U-shaped press-bending position of movable contact spring is inserted the base guide groove and fixed.Magnetic circuit system is packed in the cavity on the base, locatees in the base guide groove, and some glue is fixed.
The purpose of this utility model is to provide a kind of vertical high isolation of mo(u)ld bottom half, little erection space structure of going up, and structure is more compact, and negative section volume is higher, and assembling is adjusted simpler, the more reliable electromagnetic relay of working.
The technical solution of the utility model is for example cavity employing variable section structure design of yoke, armature, movable contact spring and framework of vitals with relay.
The utility model is made up of electromagnetic system, contact system, carrier part framework (hereinafter to be referred as framework), contact part push card (hereinafter to be referred as push card) and shell.Magnetic circuit system is provided with coil, yoke, armature, spacing tray, stage clip etc., and contact system is provided with movable contact spring, contact, lead-out tablet etc.Framework is provided with two section cavities up and down, and contact system, magnetic circuit system are individually fixed in two section cavities up and down of framework.
Said yoke is the variable cross-section yoke, and armature is variable cross-section armature, and movable contact spring is the variable cross-section movable contact spring.
By partition wall framework is divided into two section cavities up and down in the middle of the framework, the following section cavities magnetic circuit system of packing into.For guaranteeing high the isolation, the cavity of dress magnetic circuit system comparatively seals, and compares with existing electromagnetic relay structure, has not only improved isolation, has improved the dielectric withstanding voltage of product effectively; And coil has enough coiling window space, can effectively improve sensitivity; The bobbin of magnetic circuit system cooperates by the hole with the framework lower front end, clamps the location, makes the assembling of magnetic circuit part more simple.The hole dimension of framework lower front end is less, and the utility model adopts packs into earlier, after the way of bending solved that coil printed circuit board (PCB) (PCB) leading foot is drawn and aperture and coiling window interference problem.
The section cavities of framework dress magnetic circuit system, preceding end section is little, and back end section is big, and the space armature that is used to step down rotates, and promotes movable contact spring and realizes changing.Corresponding with dress magnetic circuit system front end, the cross section cavity that reduces is distributed to attaching and is touched system's cavity, has strengthened the space of contact position, switches space requirement thereby satisfied the contact.
The last section cavities contact system of packing into.Be the convenient mechanical parameter of adjusting and detecting contact portion, framework opens wide at correspondence position, compares with existing relay, not only makes the adjustment of relay mechanical parameter and detects simpler and more direct, accurate; And current capacity after enough length spaces and width spaces are guaranteed the flexible and load raising of movable contact spring arranged.
A side of the section cavities of system is touched in the framework attaching, is provided with the side channel that the draw-in groove that cooperates with dynamic and static contact lead-out tablet and PCB leading foot are drawn.Draw-in groove cooperates with shell, can effectively fix and connect (QC) lead-out tablet fast, compare with known plastic hot riveting fixation, the anti-intensity that plugs and unplugs of QC leading foot effectively improves, saved the expense of rivet hot equipment and operation, having reduced the complexity coefficient of lead-out tablet processing of dynamic and static contact and assembling simultaneously, and improved the utilance of lead-out tablet material, is that automated production lays the foundation when reducing part manufacturing cost.
Be provided with on the partition wall about framework in the middle of two section cavities and promote the hole, corresponding with the variable cross-section armature arm, magnetic circuit system and contact system that the variable cross-section push card of packing into is isolated height connect.Be provided with convex tendon and groove at the edge that promotes the hole, groove and convex tendon interlock with large tracts of land platform bottom on the push card, air and creepage distance between armature and movable contact spring have been prolonged, guaranteed in little space to realize the 6mm air distance that reinforced insulation is required and the requirement of 8mm creepage distance, compacter more than existing relay.
Push card is provided with the boss of pack into armature and frame aperture, pack into and be provided with the distortion slot to make way in the middle of the boss of armature, can set up defences and withdraw from buckle in the side, for guaranteeing to satisfy the VDE space and the creepage distance requirement of high insulating requirements, be provided with the enough big platform of an area in the middle of the push card, being provided with corresponding convex tendon and groove fit on groove and convex tendon and the framework on the platform, guaranteed in little space, to satisfy the reinforced insulation requirement.
The movable contact spring of contact system is designed to variable cross-section, and preceding end section is little, and enough flexibilities are arranged, and is beneficial to the generation overtravel; Back end section is big, is beneficial to the enough big disjunction power that produces, and improves the anti-stick ability of connecing in contact under the large impact electric current.
Armature is movably connected on the variable cross-section yoke by stage clip, pack into an end of variable cross-section push card of the hole of front end, and push card cooperates with frame aperture, can be with the displacement control of armature under thump in allowed limits.Yoke variable cross-section design, to have an indentations section of stepping down long-pending little with the lead-out tablet correspondence position, and the penetration range that makes magnetic circuit system and contact system is greater than 2mm, and front end heavy in section part is beneficial to clamping of realization armature.
Contact system of the present utility model and magnetic circuit system are respectively charged in two section cavities up and down of framework, and the action of armature is connected by the movable contact spring of push card with itself and contact system by the hole on the framework, promotes the switching that movable contact spring is realized the contact.At the end of packing into of magnetic circuit system, framework is provided with divider wall, has increased the isolation between input and output.By rational allocation of space, make the relay volume littler, satisfied the high insulation request of VDE safety certification in the time of more compact structure.Adopt between parts and clamp connection, make assembling simpler, locate more accurately, be beneficial to continuous production in enormous quantities.
Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model.
Fig. 2 is a section of structure of the present utility model.
Fig. 3 is the part enlarged drawing of Fig. 2.
Fig. 4～6 are frame construction drawing.
Fig. 7～8 are yoke structure figure.
Fig. 9 is armature structure figure.
Figure 10 is the movable contact spring structure chart
Figure 11～13 are the push card structure chart.
Below in conjunction with accompanying drawing the utility model is further described.
Shown in Fig. 1～3, the main parts size of relay comprises: shell 1, fixed contact lead-out tablet 2, moving contact lead-out tablet 3, movable contact spring 4, contact 5, framework 6, push card 7, stage clip 8, yoke 9, armature 10, bobbin 11, iron core 12, coil lead-out tablet 13 etc.
Shown in Fig. 4～6, form two section cavities 61 and 62 up and down after the framework 6 ladder allocation space, the cavity of dress magnetic circuit system comparatively seals, the preceding lower end of cavity is provided with the coil lead-out tablet and draws aperture 63, in order to draw coil PCB pin, the method that coil PCB pin bends after adopting and packing into has again solved the contradiction that the little and coil PCB pin of high isolation size and coiling window are interfered.Aperture sidewall 64 cooperates with the bobbin hanging platform and clamps the location magnetic circuit system, makes assembling simpler and more direct.
The section cavities 61 that system is touched in attaching is the convenient mechanical parameter of adjusting, correspondence position opens wide in the contact, opposite side is provided with the draw-in groove 65 and 66 that cooperates with dynamic and static contact lead-out tablet, and the side of draw-in groove is provided with groove 67 and 68, in order to dynamic and static contact lead-out tablet PCB pin.The middle part of framework is provided with and promotes hole 69, and the push card of packing into realizes high the isolation being connected of magnetic circuit system and contact system.Referring to Figure 11～13, promotion 69 outsides, hole are respectively equipped with groove 73 and the boss 74 mutual interlocks on boss 69a and groove 69b and the push card 7 area platforms broad in the middle, have satisfied high insulation request; For improving isolation, between the cavity of dress magnetic circuit system and contact system, be provided with divider wall 610, satisfy creepage distance requirement between input of VDE safety certification and output.
Referring to Fig. 7, shown in 8, one side of variable cross-section yoke 9 be provided with improve and leading foot between the slot to make way 91 of penetration range, be provided with in the both sides of yoke and be tightly fixed two boss 93 of magnetic circuit part upper and lower displacement of frame wall, the front end of yoke is provided with the draw-in groove 92 of typical fixed armature.
Referring to Fig. 9, the 10th, variable cross-section armature 10 and movable contact spring 4 structure charts, front end 41 cross sections of movable contact spring riveting contact are little, can guarantee to have enough flexibilities when realizing contact overtravel; The high rigidity of heavy in section rear end 42 can guarantee that moving contact has enough disjunction power, the reliability of working when improving the switching high power load of contact.
Be provided with the hole 102 corresponding with frame aperture 69 on the pusher arm 101 of variable cross-section armature 10, the rear end boss of the push card of packing into connects magnetic circuit and contact portion, is rotated by armature to promote movable contact spring by push card and realize that the contact switches.
Figure 11～13rd, the structure chart of push card 7, push card 7 lower ends are provided with the boss 72 in the armature hole of packing into, and the middle part is provided with the large tracts of land platform 71 that increases creepage distance, can set up anti-back at an end in the armature hole of packing into and go out buckle.For satisfying high insulation request, the large tracts of land platform is provided with groove 73 and boss 74 promotes the boss 69a and the groove 69b interlock in 69 outsides, hole with framework, has prolonged air and creepage distance between input and output.
Claims (10)
1, variable section structure electromagnetic relay up and down, be provided with electromagnetic system, contact system, carrier part framework, contact part push card and shell, magnetic circuit system is provided with coil, yoke, armature, spacing tray, stage clip, contact system is provided with movable contact spring, contact, lead-out tablet, it is characterized in that carrier part framework is provided with two section cavities up and down, contact system, magnetic circuit system are individually fixed in two section cavities up and down of framework.
2, variable section structure electromagnetic relay up and down as claimed in claim 1 is characterized in that said yoke is the variable cross-section yoke, and armature is variable cross-section armature, and movable contact spring is the variable cross-section movable contact spring.
3, up and down variable section structure electromagnetic relay as claimed in claim 1 is characterized in that by partition wall framework being divided into two section cavities up and down in the middle of the carrier part framework, the following section cavities magnetic circuit system of packing into, the last section cavities contact system of packing into.
4, variable section structure electromagnetic relay up and down as claimed in claim 1 is characterized in that the bobbin of magnetic circuit system cooperates by the hole with the framework lower front end, clamps the location.
5, up and down variable section structure electromagnetic relay as claimed in claim 1 is characterized in that the section cavities of framework dress magnetic circuit system, and preceding end section is little, and back end section is big, and the space armature that is used to step down rotates, and promotes movable contact spring and realizes changing.
6, variable section structure electromagnetic relay up and down as claimed in claim 1, it is characterized in that the framework attaching touches a side of the section cavities of system, be provided with the side channel that the draw-in groove that cooperates with dynamic and static contact lead-out tablet and printed circuit board (PCB) leading foot are drawn, draw-in groove cooperates with shell.
7, variable section structure electromagnetic relay up and down as claimed in claim 1 or 2, it is characterized in that about framework, being provided with on the partition wall in the middle of two section cavities and promote the hole, corresponding with the variable cross-section armature arm, magnetic circuit system and contact system that the variable cross-section push card of packing into is isolated height connect, be provided with convex tendon and groove at the edge that promotes the hole, with the groove and the convex tendon interlock of platform bottom set on the push card.
8, variable section structure electromagnetic relay up and down as claimed in claim 1 is characterized in that push card is provided with the boss of pack into armature and frame aperture, is provided with the distortion slot to make way in the middle of the boss of the armature of packing into, sets up defences and withdraw from buckle in the side.
9, variable section structure electromagnetic relay up and down as claimed in claim 1 or 2 is characterized in that the preceding end section of variable cross-section movable contact spring is little, and back end section is big.
10, variable section structure electromagnetic relay up and down as claimed in claim 1 or 2, it is characterized in that armature is movably connected on the variable cross-section yoke by stage clip, pack into an end of variable cross-section push card of the hole of front end, push card cooperates with frame aperture, and variable cross-section yoke and lead-out tablet correspondence position have the breach of stepping down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02287247 CN2578965Y (en) | 2002-11-09 | 2002-11-09 | Electromagnetic relay with up and down variable section structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02287247 CN2578965Y (en) | 2002-11-09 | 2002-11-09 | Electromagnetic relay with up and down variable section structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578965Y true CN2578965Y (en) | 2003-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02287247 Expired - Lifetime CN2578965Y (en) | 2002-11-09 | 2002-11-09 | Electromagnetic relay with up and down variable section structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2578965Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298369A (en) * | 2016-08-18 | 2017-01-04 | 漳州宏发电声有限公司 | A kind of flip-over type contact system and relay thereof |
-
2002
- 2002-11-09 CN CN 02287247 patent/CN2578965Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298369A (en) * | 2016-08-18 | 2017-01-04 | 漳州宏发电声有限公司 | A kind of flip-over type contact system and relay thereof |
| CN106298369B (en) * | 2016-08-18 | 2019-02-26 | 漳州宏发电声有限公司 | A kind of flip-over type contact system and its relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361021 No. 91-101 South South Road, Jimei Industrial Zone, Xiamen, Fujian Patentee after: Xiamen Hongfa Electroacoustic Co., Ltd. Address before: 361021 No. 91-101 South South Road, Jimei Industrial Zone, Xiamen, Fujian Patentee before: Hongfa Electroacoustic Co., Ltd, Xiamen |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121109 Granted publication date: 20031008 |