CN217768236U - Anti short-circuit current and safety monitoring relay - Google Patents
Anti short-circuit current and safety monitoring relay Download PDFInfo
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- CN217768236U CN217768236U CN202221556076.9U CN202221556076U CN217768236U CN 217768236 U CN217768236 U CN 217768236U CN 202221556076 U CN202221556076 U CN 202221556076U CN 217768236 U CN217768236 U CN 217768236U
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Abstract
The utility model discloses an anti short-circuit current and safety monitoring relay, including base, magnetic circuit, safety monitoring terminal and main load terminal, the magnetic circuit sets up on the base, the safety monitoring terminal sets up in the magnetic circuit upside, and the safety monitoring terminal contains monitoring movable terminal and monitoring quiet terminal; the monitoring static terminal is fixedly arranged on the base; a monitoring static contact is arranged at the upper end of the monitoring static terminal; the main load terminal comprises a static spring terminal and a movable spring terminal, and the movable spring terminal is fixedly arranged on the base; the movable spring terminal is provided with a movable spring piece, a movable contact is arranged on the movable spring piece, the movable spring piece generates electric power towards the static spring terminal in the power-on state, and the electric power can resist electric repulsion force applied to the movable contact. The design of this product to the movable spring terminal can effectively promote the anti short-circuit current ability of product, makes the contact behavior of movable contact more reliable, and the product is small and assembly structure is simple, realizes automatic assembly easily.
Description
Technical Field
The utility model relates to a relay field specifically is an anti short-circuit current and safety monitoring relay.
Background
A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount meets a predetermined requirement. It has an interactive relationship between the control system and the controlled system. It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.
At present, the types of relays in the market are various, but the short-circuit current resistance of many relays is weak, and the contact performance and the safety monitoring performance of contacts are required to be improved. Accordingly, one skilled in the art provides a short-circuit current resistant and safety monitoring relay to solve the above problems in the background art.
Disclosure of Invention
An object of the utility model is to provide an anti short-circuit current and safety monitoring relay to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a short-circuit current resistant and safety monitoring relay comprises a base, a magnetic circuit, a safety monitoring terminal and a main load terminal, wherein the magnetic circuit is arranged on the base, the safety monitoring terminal is arranged on the upper side of the magnetic circuit, and the safety monitoring terminal comprises a monitoring movable terminal and a monitoring static terminal; the monitoring static terminal is fixedly arranged on the base; a monitoring stationary contact is arranged at the upper end of the monitoring stationary terminal; the main load terminal comprises a static spring terminal and a movable spring terminal, and the movable spring terminal is fixedly arranged on the base; the movable spring terminal is provided with a movable spring, a movable contact is arranged on the movable spring, and the movable spring generates an electrodynamic force towards the static spring terminal in a power-on state, wherein the electrodynamic force can resist an electrodynamic repulsion force borne by the movable contact; the base is provided with a push rod, the push rod is arranged on the left side of the movable spring terminal, the push rod is fixedly connected with an armature, the armature is arranged to be of an L-shaped structure, a monitoring movable spring is arranged on the left side of the armature, one end of the monitoring movable spring is connected with the monitoring movable terminal, and a monitoring movable contact is arranged on the monitoring movable terminal.
As a further aspect of the present invention: the tail end of the armature is provided with a first boss, and the front end of the armature is provided with a hole matched with the push rod; the movable reed is provided with a hole matched with the push rod; the push rod is provided with a second boss which is correspondingly matched with the armature and the movable reed.
As a further aspect of the present invention: and the static spring terminal is provided with a static contact.
As a further aspect of the present invention: the monitoring movable terminal is located on the outer side of the armature and attached to the armature, moves along with the movement of the armature, and monitors whether a product is in a safe working state.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the design of this product to the movable spring terminal can effectively promote the anti short-circuit current ability of product, makes the contact performance of movable contact more reliable, and the product is small and assembly structure is simple, realizes automatic assembly easily.
2. When a large short-circuit current passes through a load end, repulsion force is generated between the movable reed and the movable reed terminal, so that the pressure between the movable contact and the static contact is increased, the contact reliability of the contacts is higher, and the bonding abnormality after the contacts are separated and arc-drawn can be effectively avoided; in addition, the safety monitoring function is provided, when the coil part is not electrified, the movable contact and the fixed contact are monitored to be closed, the normal function of the product is indicated, the product is in a safe working state, when the contacts are adhered, the movable contact and the fixed contact cannot be monitored to be closed, the abnormal function of the product is indicated, and the product cannot be normally used.
Drawings
Fig. 1 is a schematic diagram of an internal structure of a short-circuit current resistant safety monitoring relay.
Fig. 2 is a schematic side view of a short-circuit current resistant safety monitoring relay.
Fig. 3 is a schematic structural diagram of a safety monitoring terminal in a short-circuit current resistant and safety monitoring relay.
Fig. 4 is a schematic structural diagram of a movable spring terminal in a short-circuit current resistant safety monitoring relay.
Fig. 5 is a schematic structural diagram of a movable spring terminal in a short-circuit current resistant safety monitoring relay.
Fig. 6 is a schematic structural diagram of a push rod in a short-circuit current resistant safety monitoring relay.
Fig. 7 is a schematic structural diagram of a movable contact spring in a short-circuit current resistant safety monitoring relay.
In the figure:
1-monitoring static terminal, 2-base, 3-magnetic circuit, 4-monitoring movable terminal and 5-monitoring static contact
6-monitoring movable spring, 7-armature, 8-movable spring terminal,
9-movable spring, 10-movable contact, 11-static spring terminal,
12-stationary contact, 13-push rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 7, in an embodiment of the present invention, an anti-short-circuit current and safety monitoring relay includes a housing, a base 2, a magnetic circuit 3, a safety monitoring terminal, and a main load terminal; the magnetic circuit 3 is arranged on the base 2,
the safety monitoring terminal is arranged on the upper side of the magnetic circuit 3 and comprises a monitoring movable terminal 4 and a monitoring static terminal 1; the monitoring static terminal 1 is fixedly arranged on the base 2; a monitoring stationary contact 5 is arranged at the upper end of the monitoring stationary terminal 1;
the main load terminal comprises a static spring terminal 11 and a movable spring terminal 8, and the movable spring terminal 8 is fixedly arranged on the base 2;
a static contact 12 is arranged on the static spring terminal 11;
the movable spring terminal 8 is provided with a movable spring 9, the movable spring 9 is provided with a movable contact 10, the movable spring 9 generates an electrodynamic force facing the fixed spring terminal 11 in an electrified state, and the electrodynamic force can resist the electric repulsive force applied to the movable contact 10;
a push rod 13 is arranged on the base 2, the push rod 13 is arranged on the left side of the movable spring terminal 8, an armature 7 is fixedly connected to the push rod 13, the armature 7 is arranged to be in an L-shaped structure, a monitoring movable spring 6 is arranged on the left side of the armature 7, one end of the monitoring movable spring 6 is connected with a monitoring movable terminal 4, and a monitoring movable contact is arranged on the monitoring movable terminal 4;
the tail end of the armature 7 is provided with a first boss, and the front end of the armature 7 is provided with a hole matched with the push rod 13; the movable spring plate 9 is provided with a hole matched with the push rod 13; the push rod 13 is provided with a second boss which is correspondingly matched with the armature 7 and the movable reed 9;
the monitoring movable terminal 4 is positioned on the outer side of the armature 7, attached to the armature 7 and moves along with the movement of the armature 7, so that whether a product is in a safe working state or not is monitored.
The design of this product to movable spring terminal 8 can effectively promote the anti short-circuit current ability of product, makes movable contact 10's contact performance more reliable, and the product is small and assembly structure is simple, realizes automatic assembly easily.
When a large short-circuit current passes through a load end, repulsion force is generated between the movable reed 9 and the movable reed terminal 8, the pressure between the movable contact 10 and the static contact 12 is increased, the contact reliability of the contacts is higher, and the bonding abnormality after the contacts are separated and arc-drawn can be effectively avoided; in addition, the safety monitoring function is provided, when the coil part is not electrified, the movable contact and the static contact are monitored to be closed, the normal function of the product is indicated, the product is in a safety working state, when the contacts are adhered, the movable contact and the static contact cannot be closed, the abnormal function of the product is indicated, and the product cannot be used normally.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A short-circuit current resistant and safety monitoring relay comprises a base (2), a magnetic circuit (3), a safety monitoring terminal and a main load terminal,
the magnetic circuit (3) is arranged on the base (2),
the safety monitoring terminal is arranged on the upper side of the magnetic circuit (3) and comprises a monitoring movable terminal (4) and a monitoring static terminal (1); the monitoring static terminal (1) is fixedly arranged on the base (2); a monitoring static contact (5) is arranged at the upper end of the monitoring static terminal (1);
the main load terminal comprises a static spring terminal (11) and a movable spring terminal (8), and the movable spring terminal (8) is fixedly arranged on the base (2); the movable spring terminal (8) is provided with a movable spring piece (9), the movable spring piece (9) is provided with a movable contact (10), the movable spring piece (9) generates an electrodynamic force facing the static spring terminal (11) in an electrified state, and the electrodynamic force can resist an electrodynamic repulsion force applied to the movable contact (10);
the base (2) is provided with a push rod (13), the push rod (13) is arranged on the left side of the movable spring terminal (8), the push rod (13) is fixedly connected with an armature (7), the armature (7) is arranged to be of an L-shaped structure, the left side of the armature (7) is provided with a monitoring movable spring piece (6), one end of the monitoring movable spring piece (6) is connected with the monitoring movable terminal (4), and the monitoring movable terminal (4) is provided with a monitoring movable contact.
2. The short-circuit current resisting and safety monitoring relay as claimed in claim 1, wherein a first boss is arranged at the tail end of the armature (7), and a hole matched with the push rod (13) is arranged at the front end of the armature (7); the movable reed (9) is provided with a hole matched with the push rod (13); the push rod (13) is provided with a second boss which is correspondingly matched with the armature (7) and the movable reed (9).
3. A short-circuit current resistant and safety monitoring relay according to claim 1, characterized in that the static reed terminal (11) is provided with a static contact (12).
4. The short-circuit current resisting and safety monitoring relay according to claim 2, wherein the monitoring movable terminal (4) is located outside the armature (7) and attached to the armature (7), moves along with the movement of the armature (7), and monitors whether a product is in a safe working state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221556076.9U CN217768236U (en) | 2022-06-21 | 2022-06-21 | Anti short-circuit current and safety monitoring relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221556076.9U CN217768236U (en) | 2022-06-21 | 2022-06-21 | Anti short-circuit current and safety monitoring relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217768236U true CN217768236U (en) | 2022-11-08 |
Family
ID=83894038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221556076.9U Active CN217768236U (en) | 2022-06-21 | 2022-06-21 | Anti short-circuit current and safety monitoring relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217768236U (en) |
-
2022
- 2022-06-21 CN CN202221556076.9U patent/CN217768236U/en active Active
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