CN220172014U - Contact combination and relay using same - Google Patents
Contact combination and relay using same Download PDFInfo
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- CN220172014U CN220172014U CN202321510087.8U CN202321510087U CN220172014U CN 220172014 U CN220172014 U CN 220172014U CN 202321510087 U CN202321510087 U CN 202321510087U CN 220172014 U CN220172014 U CN 220172014U
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- 230000007704 transition Effects 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of relays, and particularly discloses a contact combination and a relay using the same, wherein the contact combination comprises: the first contact and the second contact are provided with convex hulls at the contact ends of the first contact, and the end surfaces of the convex hulls are arranged in a plane; when the first contact contacts with the second contact, the end face of the convex hull is abutted to the contact end of the second contact, point contact of the original contact combination is improved to be surface contact, the contact area between the first contact and the second contact is greatly increased, and even if short circuit occurs, the first contact and the second contact are not disconnected under the action of current repulsion force due to the fact that the contact area is large, and normal operation of equipment is guaranteed.
Description
Technical Field
The utility model relates to the technical field of relays, in particular to a contact combination and a relay using the same.
Background
In the existing relay, when short-circuit current occurs, current repulsive force is generated between the first contact and the second contact, and the stability of contact between the first contact and the second contact is affected.
In particular, the contact area between the existing first contact and the existing second contact is smaller, the current repulsive force cannot be completely resisted, the first contact and the second contact are easily and temporarily disconnected under the influence of the repulsive force, and accordingly current arc discharge is generated between the first contact and the second contact, the contact surface is ablated, bonded or damaged, and the contact is invalid.
Disclosure of Invention
In order to solve at least one problem in the prior art, the utility model provides a contact combination and a relay using the same, which can solve the problem that the contact area of a first contact and a second contact is smaller and cannot resist current repulsive force in the prior art.
The utility model adopts the technical proposal for solving the problems that:
a contact assembly comprising:
the first contact is provided with a convex hull at the contact end, and the end surface of the convex hull is arranged in a plane;
a second contact;
when the first contact contacts with the second contact, the end face of the convex hull is abutted against the contact end of the second contact.
In some embodiments of the utility model, the convex hull is disposed at the center of the contact end of the first contact.
In some embodiments of the utility model, the end edges of the convex hulls are arranged in a circular arc transition.
In some embodiments of the utility model, the junction of the convex hull and the first contact is arranged in a circular arc transition.
In some more specific embodiments, the connection between the convex hull and the first contact is in a concave arc transition.
In some embodiments of the utility model, the convex hull has a thickness in the range of 0.2mm to 0.4mm.
In some embodiments of the utility model, the area ratio of the end face of the convex hull to the contact end of the first contact is in the range of 0.025-0.075.
In some embodiments of the utility model, the contact end edge of the first contact is arranged in a circular arc transition and/or the contact end edge of the second contact is arranged in a circular arc transition.
In some embodiments of the utility model, the bottom of the first contact is formed with an attachment portion for attachment fixation of the first contact; and/or the bottom of the second contact is provided with a mounting part, and the mounting part is used for mounting and fixing the second contact.
The relay is applied with the contact combination.
In summary, the contact assembly and the relay using the same provided by the utility model have the following technical effects:
in the embodiment of the utility model, the convex hull is arranged on the contact end of the first contact, the end surface of the convex hull is arranged in a plane, when the first contact is contacted with the second contact, the end surface of the convex hull is abutted against the contact end of the second contact, the point contact of the original contact combination is improved to be the surface contact, the contact area between the first contact and the second contact is greatly increased, and even if a short circuit occurs, the first contact and the second contact are not disconnected under the action of current repulsion force due to the larger contact area, so that the normal operation of the equipment is ensured.
Drawings
FIG. 1 is a perspective view of one embodiment of a contact assembly of the present utility model;
fig. 2 is a schematic view of an embodiment of a contact assembly according to the present utility model.
Wherein the reference numerals have the following meanings:
a first contact 1, an attachment portion 10, a convex hull 11, a second contact 2, and a mounting portion 20.
Detailed Description
For a better understanding and implementation, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
It should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used in this description of this utility model are intended to describe specific embodiments only and are not intended to limit the utility model.
According to the present utility model, as shown in fig. 1 to 2, there is provided a contact assembly comprising:
the contact end of the first contact 1 is provided with a convex hull 11, and the end surface of the convex hull 11 is arranged in a plane;
a second contact 2;
when the first contact 1 is in contact with the second contact 2, the end face of the convex hull 11 abuts against the contact end of the second contact 2.
Further, the end surface diameter of the convex hull 11 is smaller than the contact end diameter of the first contact 1.
In practical applications, when the first contact 1 is a moving contact, the second contact 2 is a stationary contact, or when the first contact 1 is a stationary contact, the second contact 2 is a moving contact, so the convex hull 11 may be disposed on the moving contact or the stationary contact.
Through being provided with convex hull 11 on the contact end of first contact 1, the terminal surface of convex hull 11 is the plane setting, and when first contact 1 contacted with second contact 2, the terminal surface butt of convex hull 11 was in the contact end of second contact 2, improved original point contact into the face contact, promoted the area of contact between first contact 1 and second contact 2 greatly, even if when short circuit appears, first contact 1 and second contact 2 because area of contact is great, so can not break under the effect of electric current repulsive force and open, guaranteed the normal operating of equipment.
In some embodiments of the utility model, the convex hull 11 is arranged in the centre of the contact end of the first contact 1.
By arranging the convex hull 11 in the center of the contact end of the first contact 1, it is more advantageous for the current to converge to the convex hull 11, thereby forming an electrical connection between the first contact 1 and the second contact 2.
In some embodiments of the present utility model, the end edges of the convex hull 11 are arranged in a circular arc transition.
By setting the end edge of the convex hull 11 to be a circular arc transition, the stress generated when the convex hull 11 contacts the second contact 2 is reduced, and the service life of the convex hull 11 is prolonged.
In some embodiments of the present utility model, the connection between the convex hull 11 and the first contact 1 is arranged in a circular arc transition.
In more specific embodiments, the connection between the convex hull 11 and the first contact 1 is in a concave arc transition.
The connecting part of the convex hull 11 and the first contact 1 is set to be the concave arc transition, so that the stress of the connecting part of the convex hull 11 and the first contact 1 is reduced, and the excessive loss of the connecting part of the convex hull 11 and the first contact 1 is avoided, thereby ensuring the normal service life of the first contact 1.
In some embodiments of the present utility model, the thickness of the convex hull 11 ranges from 0.2mm to 0.4mm.
The thickness range of the convex hull 11 is set to be 0.2mm-0.4mm, so that a certain distance is reserved between the first contact 1 and the second contact 2, and a large-area current arc discharge between the first contact 1 and the second contact 2 is avoided, and normal use of the first contact 1 and the second contact 2 is maintained.
In some embodiments of the utility model, the area ratio of the end face of the convex hull 11 to the contact end of the first contact 1 is in the range of 0.025-0.075.
By setting the area ratio of the end face of the convex hull 11 to the contact end of the first contact 1 to be 0.025-0.075, the excessive burning area on the first contact 1 caused by the excessively large end face ratio of the convex hull 11 is avoided, and the influence on the current flow caused by the excessively small end face ratio of the convex hull 11 is avoided.
In some embodiments of the utility model, the first contacts 1 are arranged in a circular truncated cone shape and/or the second contacts 2 are arranged in a circular truncated cone shape.
By arranging the first contact 1 and the second contact 2 in a truncated cone shape, current convergence is facilitated, and electrical connection is formed between the first contact 1 and the second contact 2.
In some embodiments of the utility model, the contact end edges of the first contacts 1 are arranged in a circular arc transition and/or the contact end edges of the second contacts 2 are arranged in a circular arc transition.
By arranging the contact end edges of the first contact 1 and the contact end edges of the second contact 2 as circular arc transitions,
in some embodiments of the present utility model, the bottom of the first contact 1 is formed with an attaching portion 10, the attaching portion 10 being used for attachment fixation of the first contact 1; and/or, the bottom of the second contact 2 is formed with a mounting portion 20, and the mounting portion 20 is used for mounting and fixing the second contact 2.
In practical use, the end face diameter of the attachment portion 10 is smaller than the bottom diameter of the first contact 1, and likewise, the end face diameter of the mounting portion 20 is smaller than the bottom diameter of the second contact 2.
By forming the attaching portion 10 at the bottom of the first contact 1 and the mounting portion 20 at the bottom of the second contact 2, the attachment and mounting of the first contact 1 and the second contact 2 are facilitated.
In the above embodiments and implementations, the original point contact is improved to be the surface contact, so that the contact area between the first contact 1 and the second contact 2 is greatly increased, and even if a short circuit occurs, the first contact 1 and the second contact 2 are not disconnected under the action of current repulsion force due to the larger contact area, so that the normal operation of the device is ensured.
The utility model also provides a relay, which is applied with the contact combination.
In some embodiments of the utility model, further comprising:
a fixing plate;
the pushing piece is arranged corresponding to the fixing plate;
the movable end of the movable iron core assembly is arranged corresponding to the push plate;
the driving end of the permanent magnet assembly is arranged corresponding to the stress end of the movable iron core assembly;
wherein, the first contact 1 is arranged on the pushing piece, and the second contact 2 is arranged on the fixed plate; or the second contact 2 is arranged on the push plate, and the first contact 1 is arranged on the fixed plate;
under the drive of the permanent magnet assembly, the movable iron core assembly pushes the push plate so that the end face of the convex hull 11 abuts against the contact end of the second contact 2.
In this embodiment, by applying the contact combination described above, the relay can resist the current repulsive force generated during short circuit, and ensure normal communication of the relay, so as to ensure normal operation of the device.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other. While alternative embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the embodiments of the utility model.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in an article or terminal device comprising the element.
While the foregoing has been described in some detail by way of illustration of the principles and embodiments of the utility model, and while in accordance with the principles and implementations of the utility model, those skilled in the art will readily recognize that the utility model is not limited thereto.
Claims (10)
1. A contact assembly, comprising:
the contact end of the first contact (1) is provided with a convex hull (11), and the end surface of the convex hull (11) is arranged in a plane;
a second contact (2);
when the first contact (1) is contacted with the second contact (2), the end face of the convex hull (11) is abutted against the contact end of the second contact (2).
2. Contact combination according to claim 1, characterized in that the convex hull (11) is arranged in the centre of the contact end of the first contact (1).
3. Contact combination according to claim 1 or 2, characterized in that the end edges of the convex hull (11) are arranged in a circular arc transition.
4. Contact combination according to claim 1 or 2, characterized in that the junction of the convex hull (11) and the first contact (1) is arranged in a circular arc transition.
5. Contact combination according to claim 4, characterized in that the junction of the convex hull (11) and the first contact (1) is arranged in a concave arc transition.
6. Contact combination according to claim 1 or 2, wherein the thickness of the convex hull (11) is in the range of 0.2mm-0.4mm.
7. Contact combination according to claim 1 or 2, characterized in that the area ratio of the end face of the convex hull (11) to the contact end of the first contact (1) is in the range of 0.025-0.075.
8. Contact combination according to claim 1 or 2, characterized in that the contact end edges of the first contact (1) are arranged in a circular arc transition and/or the contact end edges of the second contact (2) are arranged in a circular arc transition.
9. Contact combination according to claim 1 or 2, characterized in that the bottom of the first contact (1) is formed with an attachment portion (10), the attachment portion (10) being used for attachment fixation of the first contact (1); and/or a mounting part (20) is formed at the bottom of the second contact (2), and the mounting part (20) is used for mounting and fixing the second contact (2).
10. Relay, characterized in that a contact combination according to any of claims 1 to 9 is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321510087.8U CN220172014U (en) | 2023-06-13 | 2023-06-13 | Contact combination and relay using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321510087.8U CN220172014U (en) | 2023-06-13 | 2023-06-13 | Contact combination and relay using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220172014U true CN220172014U (en) | 2023-12-12 |
Family
ID=89052162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321510087.8U Active CN220172014U (en) | 2023-06-13 | 2023-06-13 | Contact combination and relay using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220172014U (en) |
-
2023
- 2023-06-13 CN CN202321510087.8U patent/CN220172014U/en active Active
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