CN212783258U - Clapper type electromagnetic relay with normally closed static spring - Google Patents
Clapper type electromagnetic relay with normally closed static spring Download PDFInfo
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- CN212783258U CN212783258U CN202021754474.2U CN202021754474U CN212783258U CN 212783258 U CN212783258 U CN 212783258U CN 202021754474 U CN202021754474 U CN 202021754474U CN 212783258 U CN212783258 U CN 212783258U
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Abstract
The utility model discloses a clapper type electromagnetic relay with a normally closed static spring, which comprises a base, a normally closed static spring and a movable spring armature part; the normally closed static spring is arranged on the base, the moving spring armature part is arranged on the base through the magnetic circuit part of the relay, and the moving contact in the moving spring armature part is correspondingly matched with the normally closed static contact of the normally closed static spring; a first suction accessory is arranged in the base and near the normally closed stationary contact; the movable spring armature component is internally provided with a second adsorption piece which can be adsorbed and matched with the first adsorption piece, and when a movable contact of the movable spring armature component is contacted with a normally closed stationary contact of a normally closed stationary spring, the second adsorption piece of the movable spring armature component is adsorbed and matched with the first adsorption piece of the base. The utility model discloses can improve the contact force of normally closed end, form the good matching of static contact pressure and dynamic contact pressure, increase the rated load of static contact end to improve the performance of relay.
Description
Technical Field
The utility model relates to a relay technical field especially relates to a clap box-like electromagnetic relay of quiet spring of tape normal close.
Background
The clapper type electromagnetic relay generally comprises a movable spring armature component, wherein the movable spring armature component is formed by assembling a movable spring and an armature together, and the movable spring is driven to act through the matching of the armature and an iron core pole face of a magnetic circuit part, so that a movable contact of the movable spring is contacted with a normally open static contact of a normally open static spring. When the armature is attracted with the pole face of the iron core, the movable contact of the movable spring leaf is separated from the normally closed stationary contact of the normally open stationary spring, and when the armature is attracted with the pole face of the iron core, the movable contact of the movable spring leaf is separated from the normally closed stationary contact of the normally closed stationary spring and is contacted with the normally open stationary contact of the normally open stationary spring. The normally open fixed contact and the movable contact have larger contact force, the contact force at the moment is provided by the electromagnetic force when the armature and the iron core are completely closed, the contact force between the normally closed fixed contact and the movable contact is smaller, the contact force at the moment is only provided by the counter force of the movable spring, if the counter force of the movable spring is too large at the moment, the problem of difficulty in initial action of the relay can be caused, meanwhile, if the counter force of the movable spring is too large at the moment, the deformation of the movable spring is larger, and the risk of breakage of the movable spring of the relay can be caused due to the larger concentrated stress in the subsequent action process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a clapper formula electromagnetic relay of quiet spring of area normal close, through institutional advancement, can improve the contact force of normally closed end, form the good matching of quiet contact pressure and dynamic contact pressure, increase the rated load of quiet contact end to improve the performance of relay.
The utility model provides a technical scheme that its technical problem adopted is: a clapper type electromagnetic relay with a normally closed static spring comprises a base, a normally closed static spring and a movable spring armature part; the normally closed static spring is arranged on the base, the moving spring armature part is arranged on the base through the magnetic circuit part of the relay, and a moving contact in the moving spring armature part is correspondingly matched with a normally closed static contact of the normally closed static spring; a first suction accessory is arranged in the base and near the normally closed static contact; and when the moving contact of the moving spring armature component is contacted with the normally closed stationary contact of the normally closed stationary spring, the second adsorption piece of the moving spring armature component is in adsorption fit with the first adsorption piece of the base so as to increase the pressure of the stationary contact.
The first adsorption part is magnetic steel, the second adsorption part is also magnetic steel, and the polarities of the magnetic steel on the surface, opposite to the first adsorption part, of the second adsorption part are opposite.
The first adsorption part is magnetic steel, and the second adsorption part is an iron material part.
The second adsorption piece is magnetic steel, and the first adsorption piece is an iron material piece.
In the base, a convex column is arranged near the position corresponding to the normally closed static contact, and the first suction piece is arranged in the convex column.
The convex column of the base is provided with a first groove, and the first suction piece is embedded in the first groove of the base.
The first suction piece is arranged in the convex column of the base in an injection molding mode.
The movable spring armature part comprises a movable spring, an armature and an injection molding part which connects the movable spring and the armature together in an injection molding mode, and the second adsorption part is arranged in the injection molding part.
The injection molding is equipped with the second recess, the second adsorbs the piece inlay in the second recess of injection molding.
The second adsorption piece is arranged in the injection molding piece in an injection molding mode.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model adopts the base, and a first suction accessory is arranged near the normally closed stationary contact; and when the moving contact of the moving spring armature component is contacted with the normally closed stationary contact of the normally closed stationary spring, the second adsorption piece of the moving spring armature component is in adsorption fit with the first adsorption piece of the base so as to increase the pressure of the stationary contact. The structure of the utility model can improve the contact force of the normally closed end and increase the rated load of the static contact end by the adsorption and matching of the first adsorption piece and the second adsorption piece, thereby improving the performance of the relay; and the good matching of the static contact pressure and the dynamic contact pressure can be formed by adjusting the adsorption force between the first adsorption part and the second adsorption part.
The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the clapper type electromagnetic relay with the normally closed static spring of the present invention is not limited to the embodiment.
Drawings
Fig. 1 is a schematic perspective view (without a housing) of an embodiment of the present invention;
fig. 2 is a partially exploded schematic view of a three-dimensional structure of an embodiment of the present invention;
fig. 3 is a partially exploded schematic view of a three-dimensional configuration of an embodiment of the present invention (the first and second suction members are not installed).
Detailed Description
Examples
Referring to fig. 1 to 3, a clapper type electromagnetic relay with a normally closed static spring of the present invention includes a base 1, a normally open static spring 2, a normally closed static spring 3, a magnetic circuit portion 4 and a movable spring armature component 5; the normally open static spring 2 comprises a normally open static spring 21 and a normally open static contact 22, the normally open static spring 21 is inserted on the base 1, the normally open static contact 22 is fixed on the normally open static spring 21, the normally closed static spring 3 comprises a normally closed static spring 31 and a normally closed static contact 32, the normally closed static spring 31 is inserted on the base 1, and the normally closed static contact 32 is fixed on the normally closed static spring 31; the magnetic circuit part 4 is arranged on the base 1, the movable spring armature part 5 is arranged on the magnetic circuit part 4, which is equivalent to that the movable spring armature part 5 is arranged on the base 1 through the magnetic circuit part 4 of the relay, and the movable contact 51 in the movable spring armature part 5 is correspondingly matched with the normally closed stationary contact 32 of the normally closed stationary spring 3 and the normally open stationary contact 22 of the normally open stationary spring 2, when the armature 52 in the movable spring armature part 5 is not attracted with the iron core pole surface of the magnetic circuit part 4, the movable contact 51 of the movable spring armature part 5 is separated from the normally open stationary contact 22 of the normally open stationary spring 2 and is contacted with the normally closed stationary contact 32 of the normally closed stationary spring 3, and when the armature 52 in the movable spring armature part 5 is attracted with the iron core pole surface of the magnetic circuit part 4, the movable contact 51 of the movable spring armature part 5 is separated from the normally closed stationary contact 32 of the normally closed stationary spring 3 and is contacted with the normally open stationary contact 22 of the normally open; a first suction piece 61 is further provided in the base 1 in the vicinity corresponding to the normally closed stationary contact 32; the movable spring armature component 5 is provided with a second adsorption piece 62 which can be adsorbed and matched with the first adsorption piece 61, and when the movable contact 51 of the movable spring armature component 5 is contacted with the normally closed stationary contact 32 of the normally closed stationary spring 3, the second adsorption piece 62 of the movable spring armature component 5 is adsorbed and matched with the first adsorption piece 61 of the base 1 to increase the pressure of the stationary contact.
In this embodiment, the first suction member 61 is a magnetic steel, the second suction member 62 is also a magnetic steel, and polarities of the magnetic steels on the surfaces of the first suction member 61 and the second suction member 62 opposite to each other are set to be opposite. Of course, one of the first adsorption part and the second adsorption part may be made of magnetic steel, and the other one may be made of an iron material, for example, the first adsorption part is made of magnetic steel, and the second adsorption part is made of iron material; or the second adsorption part is magnetic steel, and the first adsorption part is an iron material part.
In this embodiment, the base 1 is further provided with a boss 11 near the normally closed stationary contact 32, and the first suction fitting 61 is provided in the boss 11. The purpose of the projection 11 is to allow the first suction piece 61 in the base to better cooperate with the second suction piece 62 in the moving-spring-armature part 5.
In this embodiment, the convex column 11 of the base is provided with a first groove 12, and the first suction piece 61 is embedded in the first groove 12 of the base 1 in an interference manner. Of course, the first suction attachment may also be arranged in the convex column of the base in an injection molding manner.
In this embodiment, the movable spring and armature component 5 includes a movable spring 53, an armature 52, and an injection molding 54 that connects the movable spring 53 and the armature 52 together by injection molding, and the second adsorption part 62 is disposed in the injection molding 54.
In this embodiment, the movable spring 53 is provided with a bridging piece 55, the static spring structure is a double static spring structure for realizing current inflow and outflow, two ends of the bridging piece are respectively provided with a movable contact 51 and are respectively matched with the normally closed static contacts 32 of the two normally closed static springs 3, when the movable contact 51 of the movable spring armature component 5 is contacted with the normally closed static contacts 32 of the normally closed static springs 3, the movable contacts 51 at two ends of the bridging piece 55 of the movable spring armature component 5 are respectively contacted with the normally closed static contacts 32 of the two normally closed static springs 3, so that the current of the external connection load flows in from one of the normally closed static springs 3, flows to the bridging piece 55 through one pair of the movable contacts, and flows out from the other normally closed static spring 3 through the other pair of the movable contacts.
In this embodiment, the injection-molded part 54 is provided with a second groove 56, and the second adsorption part 62 is embedded in the second groove 56 of the injection-molded part 54 in an interference manner. Of course, the second suction piece can also be provided in the injection-molded part by injection molding.
The utility model discloses a clapper type electromagnetic relay with a normally closed static spring, which adopts a base 1, and a first suction piece 61 is arranged near the normally closed static contact 32; the movable spring armature component 5 is provided with a second adsorption piece 62 which can be adsorbed and matched with the first adsorption piece 61, when the movable contact 51 of the movable spring armature component 5 is contacted with the normally closed stationary contact 32 of the normally closed stationary spring 3, the second adsorption piece 62 of the movable spring armature component 5 is adsorbed and matched with the first adsorption piece 61 of the base 1, so that the pressure of the stationary contact can be increased. When the relay is in the off state, the first suction member 61 and the second suction member 62 approach each other, and the magnetic attraction force is large and is superimposed on the normal close end pressure generated by the deformation of the movable spring. When the relay is in the attraction state, the distance between the first attraction piece 61 and the second attraction piece 62 is far, the magnetic attraction force is small, and the normally-open-end contact pressure at the moment is provided by the electromagnetic force when the armature and the iron core are completely closed. The structure of the utility model can improve the contact force of the normally closed end and increase the rated load of the static contact end by the adsorption and matching of the first adsorption piece 61 and the second adsorption piece 62, thereby improving the performance of the relay; it is also possible to form a good matching of the stationary contact pressure and the moving contact pressure by adjusting the suction force between the first suction member 61 and the second suction member 62.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solutions disclosed above can be used by those skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A clapper type electromagnetic relay with a normally closed static spring comprises a base, a normally closed static spring and a movable spring armature part; the normally closed static spring is arranged on the base, the moving spring armature part is arranged on the base through the magnetic circuit part of the relay, and a moving contact in the moving spring armature part is correspondingly matched with a normally closed static contact of the normally closed static spring; the method is characterized in that: a first suction accessory is arranged in the base and near the normally closed static contact; and when the moving contact of the moving spring armature component is contacted with the normally closed stationary contact of the normally closed stationary spring, the second adsorption piece of the moving spring armature component is in adsorption fit with the first adsorption piece of the base so as to increase the pressure of the stationary contact.
2. The clapper type electromagnetic relay with normally closed static spring as claimed in claim 1, wherein: the first adsorption part is magnetic steel, the second adsorption part is also magnetic steel, and the polarities of the magnetic steel on the surface, opposite to the first adsorption part, of the second adsorption part are opposite.
3. The clapper type electromagnetic relay with normally closed static spring as claimed in claim 1, wherein: the first adsorption part is magnetic steel, and the second adsorption part is an iron material part.
4. The clapper type electromagnetic relay with normally closed static spring as claimed in claim 1, wherein: the second adsorption piece is magnetic steel, and the first adsorption piece is an iron material piece.
5. The clapper electromagnetic relay with normally closed static spring according to any one of claims 1 to 4, wherein: in the base, a convex column is arranged near the position corresponding to the normally closed static contact, and the first suction piece is arranged in the convex column.
6. The clapper type electromagnetic relay with normally closed static spring as claimed in claim 5, wherein: the convex column of the base is provided with a first groove, and the first suction piece is embedded in the first groove of the base.
7. The clapper type electromagnetic relay with normally closed static spring as claimed in claim 5, wherein: the first suction piece is arranged in the convex column of the base in an injection molding mode.
8. The clapper electromagnetic relay with normally closed static spring according to any one of claims 1 to 4, wherein: the movable spring armature part comprises a movable spring, an armature and an injection molding part which connects the movable spring and the armature together in an injection molding mode, and the second adsorption part is arranged in the injection molding part.
9. The clapper-type electromagnetic relay with normally closed static spring of claim 8, wherein: the injection molding is equipped with the second recess, the second adsorbs the piece inlay in the second recess of injection molding.
10. The clapper-type electromagnetic relay with normally closed static spring of claim 8, wherein: the second adsorption piece is arranged in the injection molding piece in an injection molding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021754474.2U CN212783258U (en) | 2020-08-20 | 2020-08-20 | Clapper type electromagnetic relay with normally closed static spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021754474.2U CN212783258U (en) | 2020-08-20 | 2020-08-20 | Clapper type electromagnetic relay with normally closed static spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212783258U true CN212783258U (en) | 2021-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021754474.2U Active CN212783258U (en) | 2020-08-20 | 2020-08-20 | Clapper type electromagnetic relay with normally closed static spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212783258U (en) |
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2020
- 2020-08-20 CN CN202021754474.2U patent/CN212783258U/en active Active
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