CN106847618B - A kind of whole body contact formula cooling fin in crystal cover series electromagnetic relay - Google Patents
A kind of whole body contact formula cooling fin in crystal cover series electromagnetic relay Download PDFInfo
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- CN106847618B CN106847618B CN201710170555.4A CN201710170555A CN106847618B CN 106847618 B CN106847618 B CN 106847618B CN 201710170555 A CN201710170555 A CN 201710170555A CN 106847618 B CN106847618 B CN 106847618B
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- cooling fin
- connecting plate
- contact
- support
- electromagnetic relay
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/12—Ventilating; Cooling; Heating
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
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Abstract
The present invention discloses the whole body contact formula cooling fin in a kind of crystal cover series electromagnetic relay, the electromagnetic relay includes electromagnetic system and contact system, the electromagnetic system includes four support legs positioned at coil and yoke lower part, and an accommodating space is formed between four support legs；Be provided with cooling fin in the accommodating space, the cooling fin includes two support plates, a connecting plate and a heat sink, two support plate be located at the connecting plate it is opposite first while and when second, be arranged vertically downward relative to the connecting plate；The heat sink is curved arc-shaped of be connected with the third side of the connecting plate upper；It is additionally provided with outwardly projecting banking stop in one of them described support plate, for being fixedly connected with the side of the support leg；The minimum point of the support plate is higher by a distance than the minimum point of the support leg, and the distance is equal to the thickness of the contact system bottom plate；The connecting plate is located at the surface of the stationary contact and movable contact spring in the contact system.
Description
Technical field
The present invention relates to the contacts in relay design technical field more particularly to a kind of crystal cover series electromagnetic relay
System entirety body contact formula heat sink design.
Background technology
In electromagnetic relay especially crystal cover series electromagnetic relay, contact bonding is most common failure mode.
Fig. 1 is the structural schematic diagram of electromagnetic system in existing crystal cover series electromagnetic relay, including coil a2, is located at coil a2 two
Two yoke a3 at end, and four support leg a1 positioned at the lower parts coil a2.Usual electromagnetic system directly below with contact
System is connected.At work due to contact system, violent electric arc especially is will produce in the state of the frequent break-make of big overload, electricity
The hot-fluid that arc generates so that higher temperature occurs in contact area, and with arc spraying, be diffused into other components, especially coil
In region so that electromagnetic system performance declines, and relay actuation is affected with release performance, the service life damage of accelerating relay
Consumption.
Radiator is added in the external of relay in the prior art, but due to being typically between electromagnetic system and relay1 case
It is non-contacting, it conducts heat still mainly by relay leading foot, therefore practical heat conduction efficiency is in middle low-level, and can not
Control influence of the contact area hot-fluid to internal components.
Therefore, how for crystal cover series electromagnetic relay a kind of safely and effectively radiator is provided, becomes this field
Technical staff's urgent problem to be solved.
Invention content
It is a primary object of the present invention to the designs by the electromagnetic relay cooling fin to crystal cover series, improve fever
Region heat transfer and thermal balance efficiency, reduce damage of the heat to electromagnetic system during the actuating of relay, balance different groups and touch
Heat between point is poor, improves the run with load ability of relay, to improve relay life and anti-overload capability.
The technical solution adopted by the present invention is as follows shown：
A kind of whole body contact formula cooling fin in crystal cover series electromagnetic relay, the electromagnetic relay includes electromagnetic system
System and contact system, the electromagnetic system include coil, positioned at two yokes at coil both ends and positioned at the coil and yoke
Four support legs of lower part form an accommodating space between four support legs；Wherein：
Cooling fin is provided in the accommodating space, the cooling fin includes two support plates, a connecting plate and a heat sink,
Two support plate be located at the connecting plate it is opposite first while and when second, set vertically downward relative to the connecting plate
It sets；The heat sink is curved arc-shaped of be connected with the third side of the connecting plate upper, for and the electromagnetic relay
Shell is in contact to conduct heat；
It is additionally provided with outwardly projecting banking stop in one of them described support plate, it is solid for the side with the support leg
Fixed connection；
The minimum point of the support plate is higher by a distance than the minimum point of the support leg, and the distance is equal to described connect
The thickness of the system of touching bottom plate；
The connecting plate is located at the surface of the stationary contact and movable contact spring in the contact system.
According to whole body contact formula cooling fin proposed by the present invention, wherein be round between the connecting plate and the support plate
Angle transition connection.
According to whole body contact formula cooling fin proposed by the present invention, wherein pass through between the banking stop and the support leg
Spot welding connects.
According to whole body contact formula cooling fin proposed by the present invention, wherein the heat sink, the support plate, the connection
Plate and the banking stop are all made of aluminum or aluminum alloy as making material, electroplating surface zinc.
Compared with prior art, the entirety provided by the invention for contact system in crystal cover series electromagnetic relay connects
Shell-type heat sink design carries out radiating subassembly design from relay inside, it is flat with heat to be effectively improved heating region heat transfer
Weigh efficiency, reduces damage of the heat to electromagnetic system during the actuating of relay, balances the heat between homonymy difference group contact
Amount is poor, improves the run with load ability and vibration resistance of relay, and synthesis improves relay life.
Description of the drawings
Fig. 1 is the structural schematic diagram of electromagnetic system in existing Crystal Can Relay；
Fig. 2 is the structural schematic diagram of the whole body contact formula cooling fin of the present invention；
Fig. 3 is the front view of mounting structure of the cooling fin of the present invention in relay；
Fig. 4 is the side view of mounting structure of the cooling fin of the present invention in relay；
Fig. 5 is the bottom view of mounting structure of the cooling fin of the present invention in relay；
Fig. 6 is that the positive of mounting structure of the cooling fin of the present invention in relay waits sides figure；
Fig. 7 is the overall schematic of mounting structure of the cooling fin of the present invention in relay.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment shall fall within the protection scope of the present invention.
The basic three-dimensional structure of whole body contact formula cooling fin in crystal cover series electromagnetic relay proposed by the present invention is such as
Shown in Fig. 2, cooling fin b global designs are support plate b1, contact four parts such as heat sink b2, connecting plate b3, banking stop b4, even
Fishplate bar b3 has connected contact heat sink b2 and support plate b1, support plate b1 and connecting plate b3 vertical connections, round-corner transition, heat sink
B2 uses circular-arc-shaped design, is well contacted with relay1 case.Arc-shaped design also makes cooling fin that there is certain vibration damping to imitate
Fruit.This four part support plate b1, heat sink b2, connecting plate b3, banking stop b4 is all made of aluminum or aluminum alloy as making material, table
Face electrogalvanizing.
When specific assembly, cooling fin b is welded together by the way of spot welding with electromagnetic system a, as shown in Fig. 3 to Fig. 7.
Welding position passes through the fixation of banking stop b4 and the side holding position of support leg a1 between support leg a1 and banking stop b4.
The lower edge of the lower edge of support plate b1 and the support leg a1 of electromagnetic system a there are a difference in height, the numerical value of the difference in height with after
The bottom plate c1 consistency of thickness of the contact system c of electric appliance, it is ensured that install the electromagnetic system a's and contact system c of cooling fin b
Bottom plate c1 is fitted closely.
Fig. 7 show the integral installation schematic diagram of cooling fin, and each Crystal Can Relay installs 2 cooling fins, cooling fin b
The present positions connecting plate b3 be contact system c stationary contacts c2 and movable contact spring c3 surface, the coil a2 and yoke of electromagnetic system a
The underface of iron a3 can obstruct the hot-fluid between contact system and electromagnetic system；The contact heat sink b2 and shell of cooling fin b
D is in close contact, and can conduct extra hot-fluid to casing part；The support leg a1 of the support plate b1 and electromagnetic system a of cooling fin b
It fits closely, conduct and balances the heat between the difference group transfer contact of the same side；To realize raising heat conduction efficiency, protection electricity
Magnetic system reduces relay fever, improves with the effect for carrying the service life.Meanwhile arc-shaped contact heat sink b2 can play it is slow
The effect of punching improves the resistance to shock of electromagnetic relay.
The design procedure of whole body contact formula cooling fin in the crystal cover series electromagnetic relay of the present invention is as follows：
Step 21：Cooling fin b is made, is formed by block of metal plank panel beating, can suitably be adjusted according to relay space
Whole plate thickness, for plank material using aluminum or aluminum alloy as making material, surface is zinc-plated；Cooling fin b is by support plate b1, contact
Heat sink b2, connecting plate b3, tetra- parts cooling fin b4 form, and contact heat sink b2 uses circular-arc-shaped design, connecting plate b3 to connect
Pick up contact heat sink b2 and support plate b1, support plate b1 and connecting plate b3 vertical connections, round-corner transition；The design of cooling fin b
Size and relay electro-magnetic system and contacts on the basis of considering the factors such as specific relay gauge size, debud mode and is
Space matches between system.
Step 22：Cooling fin b is welded together by the way of spot welding with electromagnetic system a, and welding position is support leg a1
Between banking stop b4 so that banking stop b4 and the side of support leg a1 are kept in contact.The lower edge of support plate b1 and electromagnetic system
Unite a support leg a1 lower edge there are a difference in height, the bottom plate c1 thickness of the contact system c of the difference in height numerical value and relay
Unanimously, ensure that the electromagnetic system a for installing cooling fin b can be fitted closely with the bottom plate c1 of contact system c；
Step 23：The electromagnetic system a and contact system c of the upper cooling fin b of welding are installed together, relay complete machine is completed
Installation；
Step 24：When relay carry load work, cooling fin b makes the contact system c of relay be attracted and release process
The heat of middle generation is absorbed by cooling fin b, is transmitted and exported to outside relay, is weakened the high temperature that pitting of contact generates and is persisted pair
The continued damage of contact system；Contact system c and electromagnetic system a is isolated, weakens pitting of contact to electromagnetic system a especially coils
The damage of a2 avoids coil a2 overheats that ampere-turn is caused to decline, guard relay continuous action ability, the comprehensive longevity for improving relay
Life.Meanwhile arc-shaped contact heat sink b2 can play the role of buffering, improve the resistance to shock and stabilization of electromagnetic relay
Property.
One of ordinary skill in the art will appreciate that：Attached drawing is the schematic diagram of one embodiment, module in attached drawing or
Flow is not necessarily implemented necessary to the present invention.
One of ordinary skill in the art will appreciate that：The module in device in embodiment can describe to divide according to embodiment
It is distributed in the device of embodiment, respective change can also be carried out and be located in one or more devices different from the present embodiment.On
The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in previous embodiment or equivalent replacement of some of the technical features；And
These modifications or replacements, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (4)
1. the whole body contact formula cooling fin in a kind of crystal cover series electromagnetic relay, the electromagnetic relay includes electromagnetic system
And contact system, the electromagnetic system include coil, positioned at two yokes at coil both ends and under the coil and yoke
Four support legs in portion form an accommodating space between four support legs；It is characterized in that：
Cooling fin is provided in the accommodating space, the cooling fin includes two support plates, a connecting plate and a heat sink, described
Two support plates be located at the connecting plate it is opposite first while and when second, be arranged vertically downward relative to the connecting plate；
The heat sink is curved arc-shaped of be connected with the third side of the connecting plate upper, for and the electromagnetic relay shell
It is in contact to conduct heat；
It is additionally provided with outwardly projecting banking stop in one of them described support plate, fixes and connects for the side with the support leg
It connects；
The minimum point of the support plate is higher by a distance than the minimum point of the support leg, and the distance is equal to the contact
The thickness for bottom plate of uniting；
The connecting plate is located at the surface of the stationary contact and movable contact spring in the contact system.
2. the whole body contact formula cooling fin in crystal cover series electromagnetic relay according to claim 1, which is characterized in that
It is connected for round-corner transition between the connecting plate and the support plate.
3. the whole body contact formula cooling fin in crystal cover series electromagnetic relay according to claim 1 or 2, feature exist
In being connected by spot welding between the banking stop and the support leg.
4. the whole body contact formula cooling fin in crystal cover series electromagnetic relay according to claim 3, which is characterized in that
The heat sink, the support plate, the connecting plate and the banking stop are all made of aluminum or aluminum alloy as making material, surface
Electrogalvanizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710170555.4A CN106847618B (en) | 2017-03-21 | 2017-03-21 | A kind of whole body contact formula cooling fin in crystal cover series electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710170555.4A CN106847618B (en) | 2017-03-21 | 2017-03-21 | A kind of whole body contact formula cooling fin in crystal cover series electromagnetic relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106847618A CN106847618A (en) | 2017-06-13 |
| CN106847618B true CN106847618B (en) | 2018-09-21 |
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| CN201710170555.4A Active CN106847618B (en) | 2017-03-21 | 2017-03-21 | A kind of whole body contact formula cooling fin in crystal cover series electromagnetic relay |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117581Y (en) * | 2007-11-22 | 2008-09-17 | 九阳股份有限公司 | Electromagnetic relay |
| CN201549449U (en) * | 2009-12-01 | 2010-08-11 | 李健全 | Single-phase magnetic latching relay |
| CN101383250B (en) * | 2008-09-26 | 2011-07-27 | 王兆春 | Electromagnetic relay |
| CN202712076U (en) * | 2012-07-19 | 2013-01-30 | 江苏华仑电子有限公司 | Relay |
| CN204102812U (en) * | 2014-08-07 | 2015-01-14 | 宁波福特继电器有限公司 | A kind of miniature electro-magnetic relay |
| CN205452183U (en) * | 2015-12-31 | 2016-08-10 | 宁波福特继电器有限公司 | Miniature electromagnetic relay |
-
2017
- 2017-03-21 CN CN201710170555.4A patent/CN106847618B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117581Y (en) * | 2007-11-22 | 2008-09-17 | 九阳股份有限公司 | Electromagnetic relay |
| CN101383250B (en) * | 2008-09-26 | 2011-07-27 | 王兆春 | Electromagnetic relay |
| CN201549449U (en) * | 2009-12-01 | 2010-08-11 | 李健全 | Single-phase magnetic latching relay |
| CN202712076U (en) * | 2012-07-19 | 2013-01-30 | 江苏华仑电子有限公司 | Relay |
| CN204102812U (en) * | 2014-08-07 | 2015-01-14 | 宁波福特继电器有限公司 | A kind of miniature electro-magnetic relay |
| CN205452183U (en) * | 2015-12-31 | 2016-08-10 | 宁波福特继电器有限公司 | Miniature electromagnetic relay |
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| Publication number | Publication date |
|---|---|
| CN106847618A (en) | 2017-06-13 |
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