CN202373526U - Movable contact sheet in electromagnetic switch - Google Patents
Movable contact sheet in electromagnetic switch Download PDFInfo
- Publication number
- CN202373526U CN202373526U CN2011205643714U CN201120564371U CN202373526U CN 202373526 U CN202373526 U CN 202373526U CN 2011205643714 U CN2011205643714 U CN 2011205643714U CN 201120564371 U CN201120564371 U CN 201120564371U CN 202373526 U CN202373526 U CN 202373526U
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- movable contact
- electromagnetic switch
- contact spring
- making surface
- fin
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Abstract
The utility model provides a movable contact sheet in an electromagnetic switch, belongs to the technical field of electro-mechanics, and solves the problem that the conventional electromagnetic switch cannot be normally turned on in cold environment. The movable contact sheet in the electromagnetic switch comprises a sheet-like body, wherein a contact surface of the body, which is contacted with a stationary contact sheet, has a convex ice-breaking structure. The electromagnetic switch has the advantages of high turn-on sensitivity, smoothness in turn-on in the cold environment and the like.
Description
Technical field
The utility model belongs to the mechanical & electrical technology field, relates to a kind of electromagnetic switch, the movable contact spring in particularly a kind of electromagnetic switch.
Background technology
Electromagnetic switch is divided into two kinds of AC and DCs; Being used to control power equipment remote, Fraquent start is communicated with and disconnection; Utilize push-button switch electromagnetic switch energising or outage to be communicated with or to break off the circuit of power equipment; Control the work of high pressure, high current flow devices with less voltage and current, have safe and reliable advantage.
Electromagnetic switch structure kind on the market is more, but ubiquity useful life short problem, so the applicant designed a kind of electromagnetic switch of long service life, and applied for patent [application number: 201020153653.0; Granted publication number: CN201629271U], it comprises electromagnet part and switch sections, electromagnet comprises that partly inside has the tubular coil brace of iron core; There is coil in coil brace Shangrao, and switch sections is arranged at the end of coil brace, and switch sections comprises cover plate and wears two fixed contacts on the cover board; Be provided with movable contact rod between fixed contact and the iron core; Movable contact rod is provided with movable contact spring, also is provided with resetting device on the movable contact rod, and the inner of fixed contact is fixed with static contact; Static contact adopts the alloyed copper material to process, and movable contact rod is moved under the driving of iron core movable contact spring is contacted with two static contacts simultaneously.
Above-mentioned electromagnetic switch in use; The close push button switch is to coil electricity, and generating an electromagnetic field drives iron core and movable contact rod motion, contacts with two static contacts until movable contact spring; Connect the circuit of power equipment; Cut-off push button switch, iron core receive the disgusting usefulness of back-moving spring elastic force to get back to initial condition, break off the power equipment circuit.In order to prevent that aqueous vapor or other foreign matter from getting into electromagnetic switch from the gap between iron core and the shell, be socketed with the shell of a tubular on coil brace and the coil, coil brace is provided with an annular dust cover with respect to the other end port of cover plate.Though the setting of dust cover has dustproof effect; But under the environment for use of cold weather, the icing phenomenon of aqueous vapor can appear in gap location between movable contact spring and the static contact unavoidably, again because movable contact spring is the plane towards the end face of static contact; So the thrust of movable contact rod promotion movable contact spring is that mean effort is on the ice face through the plane of movable contact spring; Therefore difficult crushing ice cube after enough pressure must being provided or waiting ice cube to melt a little, could pass through movable contact spring crushing ice cube; So just increase the opening time of electromagnetic switch, influenced the normal use of electromagnetic switch.
Summary of the invention
The purpose of the utility model is to the problems referred to above that exist in the prior art, and the movable contact spring in a kind of electromagnetic switch with the function of opening ice is provided.
The purpose of the utility model can realize through following technical proposal: the movable contact spring in a kind of electromagnetic switch, comprise sheet noumenon, and it is characterized in that the contact-making surface that described body is used to contact static contact has the ice breaking structure of protrusion.
Movable contact spring in this electromagnetic switch in use, when the gap between movable contact spring and the static contact did not freeze, the contact-making surface that movable contact spring has directly touched static contact, thereby was communicated with the power equipment circuit; When the gap between movable contact spring and the static contact freezes; Movable contact rod promotes movable contact spring to static contact, the ice breaking structure that movable contact spring has is raised in contact-making surface, so ice breaking structure at first contacts the ice face; Protruding ice breaking structure forms the stress concentration phenomenon; The ice face is broken, and the movable contact spring after opening ice continues near static contact, makes the power equipment circuit communication behind the ice breaking structure contact static contact.Ice breaking structure protrudes from the contact-making surface of body in addition, when ice breaking structure can make the power equipment circuit communication once touching static contact, has increased the sensitivity that electromagnetic switch is opened like this.
In the movable contact spring in above-mentioned electromagnetic switch, described ice breaking structure comprises that some roads protrude from the fin of contact-making surface.In actual the manufacturing, ice breaking structure can be bulge-structures such as boss, projection, projection.
In the movable contact spring in above-mentioned electromagnetic switch, described fin is bar shaped or arc.
In the movable contact spring in above-mentioned electromagnetic switch, described fin is bar shaped and is transversely arranged on contact-making surface.When opening ice, fin causes the horizontal breach of bar shaped to the ice face.
In the movable contact spring in above-mentioned electromagnetic switch, the quantity of described fin is twice and is symmetrically arranged on the contact-making surface.
In the movable contact spring in above-mentioned electromagnetic switch, described fin is near the edge of contact-making surface.Fin is positioned at here, can cause breach to the center of ice face between movable contact spring and the static contact, makes the ice face be prone to cracked.
In the movable contact spring in above-mentioned electromagnetic switch, described fin is bar shaped and on contact-making surface, vertically arranges.When opening ice, fin causes the vertical breach of bar shaped to the ice face.
In the movable contact spring in above-mentioned electromagnetic switch, the quantity of described fin is twice and is symmetrically arranged on the contact-making surface that described fin is positioned on the center line of body.When opening ice, fin makes the ice face ftracture from center line, and the ice face is cracked fast.
In the movable contact spring in above-mentioned electromagnetic switch, the moulding of described body one stamping-out.Movable contact spring is through the moulding of punch press one stamping-out, and is convenient for production, low cost of manufacture.
In the movable contact spring in above-mentioned electromagnetic switch, described body adopts the alloyed copper material to process.Movable contact spring is processed through the alloyed copper material, and useful life is longer.
Compared with prior art, the movable contact spring in this electromagnetic switch has the function of opening ice, and movable contact spring can be abolished the ice face of gap location between movable contact spring and the static contact through ice breaking structure, guarantees that electromagnetic switch opens smoothly; Ice breaking structure protrudes from the contact-making surface of body in addition, when ice breaking structure can make the power equipment circuit communication once touching static contact, has increased the sensitivity that electromagnetic switch is opened.
Description of drawings
Fig. 1 is the main TV structure sketch map of the movable contact spring in this electromagnetic switch.
Fig. 2 is the sectional structure sketch map of the movable contact spring in this electromagnetic switch.
Fig. 3 is the structure enlarged drawing in Fig. 2 circle.
Fig. 4 is that the master of the another kind of structure of movable contact spring in this electromagnetic switch looks sketch map.
Among the figure, 1, body; 2, contact-making surface; 3, fin.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Like Fig. 1, Fig. 2 and shown in Figure 3, the movable contact spring in this electromagnetic switch comprises sheet noumenon 1, and body 1 adopts the moulding of alloyed copper material one stamping-out, and body 1 middle part has and is used for the through hole that is connected with movable contact rod.The contact-making surface 2 that body 1 is used to contact static contact has the ice breaking structure of protrusion; What ice breaking structure comprised that some roads protrude from contact-making surface 2 is bar shaped or arc fin 3; Fin 3 is bar shaped and quantity is twice in the present embodiment; Fin 3 is transversely arranged and symmetric arrangement on contact-making surface 2, and per pass fin 3 is all near the edge of contact-making surface 2.
Movable contact spring in this electromagnetic switch in use, when the gap between movable contact spring and the static contact did not freeze, the contact-making surface 2 that movable contact spring has directly touched static contact, thereby was communicated with the power equipment circuit; When the gap between movable contact spring and the static contact froze, movable contact rod promoted movable contact spring to static contact, and the fin 3 that movable contact spring has at first contacts the ice face; Fin 3 forms the stress concentration phenomenon; Because twice fin 3 is positioned at the edge of contact-making surface 2, therefore can cause the horizontal breach of bar shaped to 1/3 place and 2/3 place of ice face, cause the ice face to break; Movable contact spring after opening ice continues near static contact, makes the power equipment circuit communication behind the fin 3 contact static contacts.Fin 3 protrudes from the contact-making surface 2 of body 1 in addition, when fin 3 can make the power equipment circuit communication once touching static contact, has increased the sensitivity that electromagnetic switch is opened like this.
Embodiment 2
As shown in Figure 4; Present embodiment is basic identical with structure and the principle of embodiment 1; Different place is in the present embodiment that fin 3 is bar shaped and quantity is twice, and fin 3 is vertically arranged and symmetric arrangement on contact-making surface 2, and per pass fin 3 all is positioned on the center line of body 1.When opening ice like this, 3 pairs of ice of fin face centerline causes the vertical breach of bar shaped, and the ice face is ftractureed from center line, and the ice face is cracked fast.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as body 1, contact-making surface 2, fin 3 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (10)
1. the movable contact spring in the electromagnetic switch comprises sheet noumenon (1), it is characterized in that, the contact-making surface (2) that described body (1) is used to contact static contact has the ice breaking structure of protrusion.
2. the movable contact spring in the electromagnetic switch according to claim 1 is characterized in that, described ice breaking structure comprises that some roads protrude from the fin of contact-making surface (2) (3).
3. the movable contact spring in the electromagnetic switch according to claim 2 is characterized in that, described fin (3) is bar shaped or arc.
4. the movable contact spring in the electromagnetic switch according to claim 3 is characterized in that, described fin (3) is bar shaped and goes up transversely arranged in contact-making surface (2).
5. the movable contact spring in the electromagnetic switch according to claim 4 is characterized in that, the quantity of described fin (3) is twice and is symmetrically arranged on the contact-making surface (2).
6. the movable contact spring in the electromagnetic switch according to claim 5 is characterized in that, described fin (3) is near the edge of contact-making surface (2).
7. the movable contact spring in the electromagnetic switch according to claim 3 is characterized in that, described fin (3) is bar shaped and goes up vertically arrangement in contact-making surface (2).
8. the movable contact spring in the electromagnetic switch according to claim 7 is characterized in that, the quantity of described fin (3) is twice and is symmetrically arranged on the contact-making surface (2) that described fin (3) is positioned on the center line of body (1).
9. according to the movable contact spring in claim 1 or the 2 or 3 described electromagnetic switch, it is characterized in that the moulding of described body (1) one stamping-out.
10. according to the movable contact spring in claim 1 or the 2 or 3 described electromagnetic switch, it is characterized in that described body (1) adopts the alloyed copper material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205643714U CN202373526U (en) | 2011-12-29 | 2011-12-29 | Movable contact sheet in electromagnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205643714U CN202373526U (en) | 2011-12-29 | 2011-12-29 | Movable contact sheet in electromagnetic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373526U true CN202373526U (en) | 2012-08-08 |
Family
ID=46597220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205643714U Expired - Lifetime CN202373526U (en) | 2011-12-29 | 2011-12-29 | Movable contact sheet in electromagnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191977A (en) * | 2013-04-10 | 2013-07-10 | 温州亚大双金属元件有限公司 | Electrical parts manufacturing process and forming device |
| CN108711537A (en) * | 2018-08-09 | 2018-10-26 | 苏州安来强电子科技有限公司 | The movable contact structure and movable contact system of D.C. contactor |
-
2011
- 2011-12-29 CN CN2011205643714U patent/CN202373526U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191977A (en) * | 2013-04-10 | 2013-07-10 | 温州亚大双金属元件有限公司 | Electrical parts manufacturing process and forming device |
| CN103191977B (en) * | 2013-04-10 | 2015-09-09 | 温州亚大双金属元件有限公司 | A kind of electric parts manufacturing process and a kind of former |
| CN108711537A (en) * | 2018-08-09 | 2018-10-26 | 苏州安来强电子科技有限公司 | The movable contact structure and movable contact system of D.C. contactor |
| CN108711537B (en) * | 2018-08-09 | 2024-03-19 | 苏州安来强电子科技有限公司 | Movable contact structure and movable contact system of direct current contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |