CN201378524Y - High-power mechanical relay - Google Patents
High-power mechanical relay Download PDFInfo
- Publication number
- CN201378524Y CN201378524Y CN200920135225U CN200920135225U CN201378524Y CN 201378524 Y CN201378524 Y CN 201378524Y CN 200920135225 U CN200920135225 U CN 200920135225U CN 200920135225 U CN200920135225 U CN 200920135225U CN 201378524 Y CN201378524 Y CN 201378524Y
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- CN
- China
- Prior art keywords
- electrode
- mechanical relay
- direct current
- moving electrode
- powerful mechanical
- 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.)
- Expired - Lifetime
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000009467 reduction Effects 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 3
- 210000003127 knee Anatomy 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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Abstract
The utility model discloses a high-power mechanical relay, which comprises a driving device and electrodes. The electrodes are connected with the driving device and comprise a moving electrode and a static electrode, and the driving device comprises a direct current motor and a speed reducing transmission mechanism connected with the direct current motor and the moving electrode. The high-power mechanism relay can reduce volume and cost, resolves the problem that contacts are easy to be burnt out by discharge of amplified current and is firm and durable.
Description
Technical field
The utility model relates to field of electronic devices, relates in particular to a kind of powerful mechanical relay.
Background technology
Relay is to use and a kind of widely electronic devices and components in automation field, general mechanical relay mainly is made of drive unit and electrode two large divisions, and drive unit of the prior art all adopts solenoid and permeability magnetic material to make basically, it utilizes electromagnetic induction principle pulling electrode to finish switch motion, and this drive unit has occupied the most of volume and the cost of relay.
The utility model content
Technical problem to be solved in the utility model is: a kind of powerful mechanical relay is provided, and this mechanical relay volume is little, cost is low and durable in use.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of powerful mechanical relay, the electrode that includes drive unit and link to each other with described drive unit, described electrode includes moving electrode and stationary electrode, the reduction gearing mechanism that described drive unit includes direct current machine and links to each other with moving electrode with described direct current machine.
Preferably, described moving electrode downside is provided with a double contact switch, and described double contact switch includes main contacts and auxiliary contact, and the spacing between described auxiliary contact and the stationary electrode is less than the spacing between main contacts and the stationary electrode.
The beneficial effects of the utility model are:
Embodiment of the present utility model is by adopting direct current machine and the reduction gearing mechanism drive unit as mechanical relay, thereby the volume and the cost of relay have been reduced, and, solved the problem that the contact is burnt out by heavy-current discharge easily by increasing auxiliary contact, durable in use.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the internal structure side perspective view of the embodiment of powerful mechanical relay that provides of the utility model.
Embodiment
With reference to figure 1, this figure is the internal structure side perspective view of the embodiment of powerful mechanical relay that provides of the utility model; As shown in the figure, the electrode that present embodiment includes drive unit and links to each other with described drive unit, wherein, described electrode includes stationary electrode 1 and moving electrode 2, and the reduction gearing mechanism that described drive unit includes direct current machine 3 and links to each other with moving electrode 2 with direct current machine 3, during specific implementation, this reduction gearing mechanism includes worm screw 4, the turbine 5 that cooperates with worm screw 4 that links to each other with direct current machine 3 and is arranged on engage a gear 51 on the turbine 5, and engage a gear 51 links to each other with moving electrode 2.
Present embodiment has been avoided moving electrode to rely on himself elastic force action, thereby has been improved the reliability of relay work, and helped the electrode selection by using engage a gear 51 push-and-pull moving electrodes 2 actions on the turbine 5.
In addition, what the end that the moving electrode 2 of present embodiment links to each other with engage a gear adopted is knee structure 21, and the benefit of this structure is to cause the electrode adstante febre when electrode closed jet super-high-current, and the knee part rises owing to being heated to stretch, can press the contact tighter, thereby reduce the contact resistance of contact.
In addition; be easy to be burnt out consideration for fear of contact by heavy-current discharge as existing high power relay; present embodiment has also adopted the double contact switch structure; described double contact switch is arranged on the downside of moving electrode 2; form by a main contacts 61 and auxiliary contact 62; wherein; gap ratio main contacts 61 and the spacing between the stationary electrode 1 between described auxiliary contact 62 and the stationary electrode 1 are little; thereby when moving electrode 2 actions; auxiliary contact 62 are more closed earlier than main contacts 61; the back disconnects; the spark that produces when making switch motion all on auxiliary contact, has been protected main contacts, thereby has improved the useful life of relay.
In addition, for the consideration that can reset immediately of moving electrode 2 when direct current machine 3 outage, present embodiment also is provided with one when described direct current machine cuts off the power supply, provide the control circuit (not shown) of forward and reverse pulse current to it, under the effect of described reverse impulse electric current, the worm screw reverse rotation drives described moving electrode and resets immediately.
In addition, in order to prevent relay after being subjected to extraneous sharp pounding, the easy return of turbine is considered, present embodiment also has been horizontally disposed with a shell fragment 7 in the heart at turbine wheel shaft, this shell fragment can help turbine location, avoided the turbine left-right rotation to put in place after, problem that can return when being subjected to extraneous sharp pounding.
The utility model has reduced the volume and the cost of mechanical relay, and has solved the problem that the contact burns out easily, and is durable in use.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.
Claims (6)
1, a kind of powerful mechanical relay, the electrode that includes drive unit and link to each other with described drive unit, described electrode includes moving electrode and stationary electrode, it is characterized in that: the reduction gearing mechanism that described drive unit includes direct current machine and links to each other with moving electrode with described direct current machine.
2, powerful mechanical relay as claimed in claim 1, it is characterized in that, described reduction gearing mechanism includes worm screw, the turbine that cooperates with described worm screw that links to each other with described direct current machine and is arranged on engage a gear on the described turbine, and described engage a gear links to each other with described moving electrode.
3, powerful mechanical relay as claimed in claim 2 is characterized in that, the part that described moving electrode links to each other with engage a gear is the knee structure.
4, as each described powerful mechanical relay among the claim 1-3, it is characterized in that, described moving electrode downside is provided with a double contact switch, described double contact switch includes main contacts and auxiliary contact, and the spacing between described auxiliary contact and the stationary electrode is less than the spacing between main contacts and the stationary electrode.
5, powerful mechanical relay as claimed in claim 2 is characterized in that, also has been horizontally disposed with a shell fragment on the axle center of described turbine.
6, as each described powerful mechanical relay among the claim 1-3, it is characterized in that described direct current machine also is connected with the control circuit that it is provided the positive and negative pulse electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135225U CN201378524Y (en) | 2009-02-27 | 2009-02-27 | High-power mechanical relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135225U CN201378524Y (en) | 2009-02-27 | 2009-02-27 | High-power mechanical relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378524Y true CN201378524Y (en) | 2010-01-06 |
Family
ID=41518643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920135225U Expired - Lifetime CN201378524Y (en) | 2009-02-27 | 2009-02-27 | High-power mechanical relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201378524Y (en) |
-
2009
- 2009-02-27 CN CN200920135225U patent/CN201378524Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BODA ELECTRONICS (SHENZHEN) CO., LTD. Free format text: FORMER OWNER: LIU AIMIN Effective date: 20101105 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 1706, DIECUIJU, MEILIN VILLAGE 1, FUTIAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518000 6B, 6/F, HANJING BUILDING, SOUTH SIDE OF DENGLIANG ROAD, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101105 Address after: 518000, Shenzhen, Guangdong, Nanshan District Province on the south side of Deng Liang Road, Beijing Jing building, 6 floor, 6B Patentee after: Boda Electronics (Shenzhen) Co., Ltd. Address before: Shenzhen City, Guangdong province Futian District Meilin one village 518000 pinnacle in 1706 Patentee before: Liu Aimin |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100106 |