CN201238009Y - Current-sampling magnetic latching relay - Google Patents

Abstract

The utility model discloses a current-sampling magnetic latching relay, which comprises a shell (1), a relay core (2) and a shunt (3). The current-sampling magnetic latching relay has the following characteristics: a leaf spring (4) of the relay core (2) is directly connected with an upper support (5) of the shunt (3); the relay core (2) and the shunt (3) are fixed by the shell (1); a current-sampling manganin plate (11) in the shunt (3) is located between the upper support (5) and a lower support (10) and directly welded; and a pin (9) of the relay core (2) and the lower support (10) of the shunt (3) are directly connected with an external circuit. Since the utility model ingeniously integrates the independent current-sampling element and the independent switch-off control device into the same shell by welding, the volume is effectively reduced, the cost is lowered, the appearance becomes exquisite, and assembly is simplified.

Description

The current sample magnetic latching relay

Technical field

The utility model relates to a kind of relay, especially a kind of current sample magnetic latching relay.

Background technology

At present, have the alternating current sampling of electric energy meter (as prepayment meter, Long-distance Control electric energy meter etc.) of built-in relay and on-off function usually by independently shunt and magnetic latching relay are finished.Because shunt and relay are two independently element devices, rely on screw to connect mutually, contact resistance is bigger, during logical big electric current temperature rise higher, and volume is bigger, consumptive material is more, cost is higher, and trouble is installed.

Summary of the invention

The purpose of this utility model is in order to provide a kind of shunt and relay to be incorporated into current sample magnetic latching relay in the same housing, and it has overcome the deficiencies in the prior art.

The purpose of this utility model is achieved in that it comprises shell, relay nuclear, shunt, the shell fragment of described relay nuclear directly is connected with the upper bracket of described shunt, fixing described relay nuclear of described shell and described shunt, the copper-manganese sheet that current sample is used in the described shunt is positioned in the middle of upper bracket and the lower carriage and directly welding, and the pin of described relay nuclear and the lower carriage of shunt directly are connected with external circuit.

The shell fragment of described relay nuclear and the upper bracket of described shunting connect by being weldingly connected.

Described shell is provided with reinforcement.

The beneficial effects of the utility model are, generate heat little, overall volume is little, cost is low, it is exquisite attractive in appearance to see, assembly technology is simple, easy for installation.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is relay nuclear component figure of the present utility model;

Fig. 2 is a diverter assembly component diagram of the present utility model;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is that B-B of the present utility model is to cutaway view;

Among the figure: 1. shell; 2. relay is examined; 3. shunt; 4. shell fragment; 5. upper bracket; 6. brace; 7. moving contact; 8. reinforcement; 9. pin; 10. lower carriage; 11 copper-manganese sheets.

Embodiment

The technical scheme that the utility model adopted is: Fig. 1 is a relay nuclear 2, and it comprises shell fragment 4, brace 6, moving contact 7, pin 9 and other parts; Fig. 2 is a shunt 3, and it comprises upper bracket 5, lower carriage 10, copper-manganese sheet 11.Technical solutions of the utility model as shown in Figure 3, the shell fragment 4 of relay nuclear 2 directly is connected with the upper bracket 5 of shunt 3, shell 1 is fixed on relay nuclear 2 and shunt 3 in the same housing, and the pin 9 of relay nuclear 2 and the lower carriage 10 of shunt 3 expose shell 1 and directly link to each other with external circuit.Shunt 3 is for external circuit provides current sampling signal, and relay nuclear 2 drives the make and break that shell fragment 4 is controlled between moving contacts 7 and the pin 9 by brace 6 after receiving the control signal of external circuit, realize the switching to external circuit.

Temperature rise when leading to big electric current for reducing product, shell fragment 4 and upper bracket 5 directly weld together, and the copper-manganese sheet of shunt 3 and upper bracket 5, lower carriage 10 directly weld together.

In addition, on shell 1, design reinforcement 8, be used to fixedly secure relay nuclear 2 and shunt 3.

Claims (3)

1. current sample magnetic latching relay, it comprises shell (1), relay nuclear (2), shunt (3), it is characterized in that: the shell fragment (4) of described relay nuclear (2) directly is connected with the upper bracket (5) of described shunt (3), described shell (1) fixing described relay nuclear (2) and described shunt (3), the copper-manganese sheet (11) that current sample is used in the described shunt (3) is positioned at upper bracket (5) middle and directly welding with lower carriage (10), and the pin (9) of described relay nuclear (2) and the lower carriage (10) of shunt (3) directly are connected with external circuit.

2, current sample magnetic latching relay according to claim 1 is characterized in that: the shell fragment (4) of described relay nuclear (2) connects by being weldingly connected with the upper bracket (5) of described shunt (3).

3, current sample magnetic latching relay according to claim 1 is characterized in that: described shell (1) is provided with reinforcement (8).

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