CN203721507U - Silver contact used for movable contact spring of combined switch - Google Patents
Silver contact used for movable contact spring of combined switch Download PDFInfo
- Publication number
- CN203721507U CN203721507U CN201420006848.0U CN201420006848U CN203721507U CN 203721507 U CN203721507 U CN 203721507U CN 201420006848 U CN201420006848 U CN 201420006848U CN 203721507 U CN203721507 U CN 203721507U
- Authority
- CN
- China
- Prior art keywords
- contact
- face
- riveting
- segment
- movable contact
- 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 - Fee Related
Links
Abstract
The utility model discloses a silver contact used for a movable contact spring of a combined switch. A riveting segment is arranged in a cone frustum shape, the diameter of a big end face of the cone frustum is the same as that of a riveting hole of the movable contact spring which is in riveting coordination with the cone frustum and is 1.10 to 1.20 times of the diameter of a small end face of the cone frustum, the big end face of the cone frustum is connected with a contact segment, and the small end face of the cone frustum is a riveting face. According to the silver contact provided by the utility model, the riveting segment is arranged in a cone frustum shape, the silver contact can be easily inserted into the riveting hole of the movable contact spring, and the diameter of the big end face of the cone frustum is the same as that of the riveting hole of the movable contact spring which is in riveting coordination with the cone frustum, such that the riveting segment and the riveting hole contact tightly and do not shake after being riveted, thereby bringing convenience for riveting assembly.
Description
Technical field
The utility model relates to a kind of parts of unit switch, and more particularly, it relates to a kind of silver contact for unit switch movable contact spring.
Background technology
The effect of switch is played in the connecting and disconnecting of unit switch general using movable contact spring and static contact, movable contact spring is that the silver contact by riveting mutually with it contacts with static electric shock, silver contact is generally made up of silver, copper, tin and some other metal materials, have and conduct electricity very well, be not easy to cause the advantage of electric spark, silver contact comprises contact-segment, riveting segment, movable contact spring is provided with the riveted holes suitable with riveting segment, silver contact is through on the riveted holes of movable contact spring, be placed on together on riveting machine, silver contact is riveted on movable contact spring by riveted joint face.
At present, silver contact on market comprises contact-segment, riveting segment, riveting segment is generally cylindrical, can rivet and coordinate in order to make silver contact and movable contact spring be provided with riveted holes, generally can allow the diameter of silver contact riveting segment be less than riveted holes, but after silver contact riveting segment diameter diminishes and riveted with movable contact spring, easily produce and rock, cause loose contact.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of silver contact for unit switch movable contact spring, coordinates to have do not rock, contact good feature with movable contact spring riveted joint.
For achieving the above object, the utility model provides following technical scheme: a kind of silver contact for unit switch movable contact spring, comprise the riveting segment, the contact-segment that are wholely set, described contact-segment is contact-making surface with respect to the end face of riveting segment opposite side, described riveting segment is circular cone shape setting, the diameter of frustum of a cone large end face is identical with the movable contact spring riveted holes diameter coordinating with its riveted joint, the diameter of frustum of a cone large end face is 1.10～1.20 times of small end face, the large end face of the frustum of a cone is connected with contact-segment, and the small end face of the frustum of a cone is riveted joint face.
By adopting technique scheme, the riveting segment of described silver contact is truncated cone shape setting, when silver contact is inserted into by small end face on the riveted holes of movable contact spring phase, the diameter of frustum of a cone large end face is identical with the riveted holes diameter of the movable contact spring coordinating with its riveted joint, make riveting segment and riveted holes meeting close contact, after riveting, can not produce and rock, contact is good.
The utility model is further set to: described contact-making surface is evenly distributed with several circular-arc lug bosses.At contact-making surface, lug boss is set, lug boss contacts with static contact as some contact, contacts by multiple points, can produce air-flow when contact-making surface is contacted with static contact, and the temperature producing while reducing silver contact contact reduces ablation and increases the service life.
The utility model is further set to: described riveted joint face is provided with groove, and described groove is the setting of inverted cone shape.Described small end face arranges groove, makes, in the time of riveted joint, to play guide effect, and riveted joint can be expanded in homogeneous deformation, improves riveting quality.
By adopting technique scheme, the riveting segment of described silver contact is truncated cone shape setting, when silver contact is easily inserted into by small end face on the riveted holes of movable contact spring phase, identical with the riveted holes diameter of the movable contact spring coordinating with its riveted joint by the diameter of frustum of a cone large end face, make riveting segment and riveted holes meeting close contact, after riveting, can not produce and rock, be convenient to riveted joint assembling.
Brief description of the drawings
Fig. 1 is the cutaway view of a kind of silver contact for unit switch movable contact spring of the utility model;
Fig. 2 is the vertical view of a kind of silver contact for unit switch movable contact spring of the utility model;
Fig. 3 is the upward view of a kind of silver contact for unit switch movable contact spring of the utility model.
In figure 1, riveting segment; 2, contact-segment; 11, riveted joint face; 12, groove; 21, contact-making surface; 22, lug boss.
Embodiment
Referring to figs. 1 through Fig. 3, a kind of silver contact for unit switch movable contact spring of the utility model is described further.
A kind of silver contact for unit switch movable contact spring, comprise the riveting segment 1 being wholely set, contact-segment 2, described contact-segment 2 is contact-making surface 21 with respect to the end face of riveting segment 1 opposite side, described contact-making surface 21 is evenly distributed with several circular-arc lug bosses 22, wherein the quantity of lug boss 22 be 5 for optimal selection, one is positioned on contact-making surface 21 central points, all the other four relative contact 21 central points are evenly distributed on surrounding, lug boss 22 contacts with static contact as some contact, contact by multiple points, when being contacted with static contact, contact-making surface 21 can produce air-flow, the temperature producing while reducing silver contact contact, reducing ablation increases the service life, described riveting segment 1 is circular cone shape setting, the diameter of frustum of a cone large end face is identical with the movable contact spring riveted holes diameter coordinating with its riveted joint, the diameter of frustum of a cone large end face is 1.10～1.20 times of small end face, the large end face of the frustum of a cone is connected with contact-segment, the small end face of the frustum of a cone is riveted joint face 11, for the ease of inserting in movable contact spring riveted holes, can rivet face edge and carry out chamfering, riveted joint face is provided with groove 12, described groove 12 is the setting of inverted cone shape, described groove 12 also can be circular shape setting, riveted joint face arranges groove 12, make in the time of riveted joint, play guide effect, riveted joint can be expanded in homogeneous deformation, improve riveting quality,
The riveting segment 1 of described silver contact is truncated cone shape setting, when silver contact is easily inserted into by small end face on the riveted holes of movable contact spring phase, identical with the riveted holes diameter of the movable contact spring coordinating with its riveted joint by the diameter of frustum of a cone large end face, make riveting segment 1 and riveted holes meeting close contact, silver contact riveting machine is aimed at silver contact by the groove 12 on riveted joint face and is riveted, can not produce and rock, be convenient to riveted joint assembling.
Claims (3)
1. the silver contact for unit switch movable contact spring, comprise the riveting segment, the contact-segment that are wholely set, described contact-segment is contact-making surface with respect to the end face of riveting segment opposite side, it is characterized in that: described riveting segment is circular cone shape setting, the diameter of frustum of a cone large end face is identical with the movable contact spring riveted holes diameter coordinating with its riveted joint, the diameter of frustum of a cone large end face is 1.10～1.20 times of small end face, and the large end face of the frustum of a cone is connected with contact-segment, and the small end face of the frustum of a cone is riveted joint face.
2. a kind of silver contact for unit switch movable contact spring according to claim 1, is characterized in that: described contact-making surface is evenly distributed with several circular-arc lug bosses.
3. a kind of silver contact for unit switch movable contact spring according to claim 1 and 2, is characterized in that: described riveted joint face is provided with groove, and described groove is the setting of inverted cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006848.0U CN203721507U (en) | 2014-01-02 | 2014-01-02 | Silver contact used for movable contact spring of combined switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006848.0U CN203721507U (en) | 2014-01-02 | 2014-01-02 | Silver contact used for movable contact spring of combined switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721507U true CN203721507U (en) | 2014-07-16 |
Family
ID=51160645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420006848.0U Expired - Fee Related CN203721507U (en) | 2014-01-02 | 2014-01-02 | Silver contact used for movable contact spring of combined switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721507U (en) |
-
2014
- 2014-01-02 CN CN201420006848.0U patent/CN203721507U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20180102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |