A relay for an electric energy meter facilitating wire connection

Abstract

The present invention relates to the technical field of relays, and in particular discloses a relay for an electricity meter that facilitates wire connection, including an insulating body, a power unit and a terminal unit arranged in the insulating body; it also includes an electronic device arranged on the insulating body or the terminal unit. A first card slot is provided on one side of the insulating body, and a first body that is detachably arranged in the first card slot is provided on the insulating body. The electronic device and the first body are respectively located on both sides of the insulating body, and the first body is provided with a first terminal; the insulating body is provided with two parallel partitions, and a wire slot is formed between the two partitions; the electronic device is electrically connected to a first wire accommodated in the wire slot; through the structural design of the first terminal of the first body and the wire slot, the wires of the electronic device are neatly and regularly attached to the insulating body, avoiding the installation error of the relay in the electricity meter caused by the disorder of the wires of the electronic device, and improving the installation efficiency and service performance of the relay.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and particularly discloses a relay for a watt-hour meter that facilitates wire connection. Background Art

[0002] A relay is a commonly used automatic switch in a circuit. Relays have a wide range of uses. For example, relays are often required in watt-hour meters. In order to reduce the interference of the relay in the watt-hour meter by external magnetic fields, electronic devices often need to be configured for the relay. However, the wires of the electronic devices are disorderly in the watt-hour meter. On the one hand, it is easy to cause incorrect installation of the relay, and on the other hand, it also poses a hazard to the normal use of the watt-hour meter. Summary of the Invention

[0003] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the present invention is to provide a relay for a watt-hour meter that facilitates wire connection. Through the structural design of the first terminal of the first body and the wire slot, the wires of the electronic devices are neatly arranged on the insulating body, avoiding incorrect installation of the relay in the watt-hour meter due to the disorder of the wires of the electronic devices, and improving the installation efficiency and service performance of the relay.

[0004] To achieve the above object, a relay for a watt-hour meter that facilitates wire connection according to the present invention includes an insulating body, a power unit disposed in the insulating body, and a terminal unit disposed on the insulating body and protruding outside the insulating body. The power unit drives the terminal unit to conduct or disconnect; it further includes an electronic device disposed on the insulating body or the terminal unit. A first card slot is provided on one side of the insulating body. The insulating body is detachably provided with a first body accommodated in the first card slot. The electronic device and the first body are respectively located on both sides of the insulating body. The first body is provided with a first terminal; the insulating body is provided with two parallel partitions protruding from the outer surface of the insulating body. A wire slot is formed between the two partitions; the electronic device is electrically connected to a first wire accommodated in the wire slot, and one end of the first wire away from the electronic device is electrically connected to the first terminal.

[0005] Further, a second card slot is provided on the side of the insulating body away from the electronic device. The first card slot and the second card slot are located on the same side of the insulating body. The insulating body is detachably provided with a second body accommodated in the second card slot. The second body is provided with a second terminal, and the second terminal is electrically connected to the power unit through two second wires.

[0006] Further, the number of the terminal units is multiple. The power unit drives the multiple terminal units to conduct or disconnect synchronously. Each terminal unit is configured with an electronic device. The terminal unit, the first card slot, the first body, and the wire slot correspond one by one. The first wire of the electronic device of one terminal unit is electrically connected to the first terminal of one first body through one wire slot.

[0007] Further, the terminal unit includes a moving terminal and a static terminal. The moving terminal includes a moving reed, a head, and a tail. One end of the head is located inside the insulating body, the moving reed is located inside the insulating body, one end of the moving reed is arranged on the head, and the power unit drives the other end of the moving reed to conduct or disconnect from the static terminal. The other end of the head protrudes out of the insulating body, the electronic device is sleeved on the outer side of the end of the head protruding out of the insulating body, and the tail is connected to the other end of the head to prevent the electronic device from falling off from the other end of the head.

[0008] Further, the other end of the head has a first plate body and a second plate body bent and extending from the first plate body. One end of the tail is welded to the end of the second plate body away from the first plate body. The tail has a third plate body parallel to the first plate body. The electronic device is sleeved on the outer side of the second plate body, and the electronic device is located between the first plate body and the third plate body. The first plate body and the third plate body are respectively used to block the two sides of the electronic device away from each other.

[0009] Further, a welding part parallel to the second plate body is formed at the end of the tail away from the second plate body. The welding part is provided with a plurality of solder receiving grooves. The plurality of solder receiving grooves are arranged in parallel and are arranged along the length direction of the welding part.

[0010] Further, the first terminal has a solder foot part, the solder foot part is V-shaped, the solder foot part has a first foot part and a second foot part connected to the first foot part, and the ends of the first foot part and the second foot part away from each other are arranged on the first body and are used for electrically conducting the first wire.

[0011] Further, it further includes a circuit board. The circuit board is attached to the outer surface of the insulating body. The insulating body is provided with positioning posts, the circuit board has positioning holes for accommodating the positioning posts, and the first terminal and the second terminal protrude out of the same side of the insulating body and are welded on the circuit board.

[0012] Further, the power unit includes an electromagnet, an armature, and a push piece. The electromagnet is arranged inside the insulating body, the armature is movably arranged inside the insulating body, and the two ends of the push piece are respectively arranged on the armature and the terminal unit. The electromagnet drives the armature to move under the action of magnetic force, and the moving armature drives the terminal unit to conduct or disconnect via the push piece.

[0013] Further, a detection switch for cooperating with the armature is arranged inside the insulating body. The detection switch has a trigger head, and the rotating armature collides with the trigger head to trigger the detection switch.

[0014] The beneficial effects of the present invention: Through the structural design of the first terminal of the first body and the wire clamping groove, the wires of the electronic device are neatly and regularly attached to the insulating body, avoiding the installation error of the relay in the electric energy meter due to the disorder of the wires of the electronic device, and improving the installation efficiency and service performance of the relay. Description of the Drawings

[0015] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 2 Schematic diagram of the three-dimensional structure of another perspective of the present invention;

[0017] Figure 3 Exploded structure schematic diagram of the present invention;

[0018] Figure 4 is Figure 3 Partial enlarged structure schematic diagram of part A in

[0019] Figure 5 Schematic diagram of the three-dimensional structure of the first body and the first terminal of the present invention.

[0020] Reference numerals include:

[0021] 1 - Insulating body 2 - Power unit 3 - Terminal unit

[0022] 4 - Static terminal 5 - Moving terminal 6 - Electronic device

[0023] 7 - First body 8 - First terminal 9 - Partition

[0024] 11 - Wire clamping groove 12 - Second body 13 - Moving reed

[0025] 14 - Head 15 - Tail 16 - First plate body

[0026] 17 - Second plate body 18 - Third plate body 19 - Welding part

[0027] 21 - Solder receiving groove 22 - First foot 23 - Second foot

[0028] 24 - Positioning post 25 - Electromagnet 26 - Armature

[0029] 27 - Pushing piece 28 - Detection switch 29 - Trigger head. Detailed implementation manners

[0030] For the convenience of understanding by those skilled in the art, the present invention will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation manners does not limit the present invention.

[0031] Please refer to Figures 1 to 5 As shown, a relay for an electricity meter facilitating wire connection according to the present invention includes an insulating body 1, a power unit 2 installed in the insulating body 1, and a terminal unit 3 installed in the insulating body 1 and protruding outside the insulating body 1. The power unit 2 drives the terminal 5 unit 3 to conduct or disconnect.

[0032] In this embodiment, the terminal unit 3 includes a moving terminal 5 and a static terminal 4 that is electrically connected or disconnected from the moving terminal 5. The power unit 2 drives the moving terminal 5 to move, thereby causing the moving terminal 5 to electrically connect or disconnect from the static terminal 4. It further includes an electronic device 6 disposed on the insulating body 1 and protruding from one end of the insulating body 1 of the terminal unit 3, and the electronic device 6 is located outside the insulating body 1. Of course, according to actual needs, the electronic device 6 can be an instrument transformer, a filter, a coil assembly, etc.

[0033] A first card slot is provided on a side of the insulating body 1 away from the electronic device 6. The insulating body 1 is detachably provided with a first body 7 received in the first card slot. The bottom wall of the first card slot is used to block and abut against the first body 7, thereby ensuring that the first body 7 is accurately positioned at the required position in the first card slot. The first body 7 and the electronic device 6 are respectively located on the left and right sides of the insulating body 1, and two first terminals 8 are provided on the first body 7.

[0034] The insulating body 1 is provided with two parallel partitions 9 protruding from the outer surface of the insulating body 1. A card wire groove 11 is formed between the two partitions 9; two first wires received in the card wire groove 11 are electrically connected to the electronic device 6. The two partitions 9 are used to block and abut against the first wires in the card wire groove 11. The ends of the two first wires away from the electronic device 6 are respectively electrically connected to the two first terminals 8. In this embodiment, the two ends of the first wire are respectively welded to the electronic device 6 and the first terminal 8.

[0035] Through the structural design of the first terminal 8 of the first body 7 and the card wire groove 11, the wires of the electronic device 6 are neatly and regularly attached to the insulating body 1, avoiding the installation error of the relay in the watt-hour meter caused by the disorder of the wires of the electronic device 6, and improving the installation efficiency and service performance of the relay.

[0036] A second card slot is provided on a side of the insulating body 1 away from the electronic device 6. The first card slot and the second card slot are located on the same side of the insulating body 1, and the structures of the first card slot and the second card slot are substantially the same. The insulating body 1 is detachably provided with a second body 12 received in the second card slot. The second body 12 is provided with two second terminals, and the two second terminals are respectively electrically connected to the power unit 2 through two second wires.

[0037] In this embodiment, the number of the terminal units 3 is multiple. The power unit 2 drives the multiple terminal units 3 to conduct or disconnect synchronously. Each terminal unit 3 is configured with an electronic device 6. The terminal units 3, the first card slots, the first bodies 7, and the card wire grooves 11 correspond one by one. The two first wires of the electronic device 6 of one terminal unit 3 are electrically connected to the two first terminals 8 of one first body 7 through one card wire groove 11. The wires of the multiple electronic devices 6 are respectively sorted out by the multiple card wire grooves 11 to ensure that the wires of all the electronic devices 6 are firmly positioned on the insulating body 1.

[0038] The moving terminal 5 includes a moving spring piece 13, a head portion 14 and a tail portion 15. One end of the head portion 14 is located inside the insulating body 1, the moving spring piece 13 is located inside the insulating body 1, one end of the moving spring piece 13 is fixedly arranged on the head portion 14, and the power unit 2 drives the other end of the moving spring piece 13 so that the other end of the moving spring piece 13 conducts or disconnects from the static terminal 4.

[0039] The other end of the head portion 14 protrudes out of the insulating body 1. The electronic device 6 is sleeved on the outer side of the end of the head portion 14 that protrudes out of the insulating body 1. The tail portion 15 is connected to the other end of the head portion 14 to prevent the electronic device 6 from falling off from the other end of the head portion 14. During actual manufacturing, first, the electronic device 6 is sleeved on the end of the tail portion 15 that protrudes out of the insulating body 1, and then the tail portion 15 is welded to the other end of the head portion 14, thereby preventing the electronic device 6 from falling off from the head portion 14.

[0040] The other end of the head portion 14 has a first plate body 16 and a second plate body 17 that is bent and extended from the first plate body 16. The first plate body 16 and the second plate body 17 are arranged substantially perpendicular to each other. One end of the tail portion 15 is welded to the end of the second plate body 17 that is away from the first plate body 16.

[0041] The tail portion 15 has a third plate body 18 that is parallel to the first plate body 16. The electronic device 6 is sleeved on the outer side of the second plate body 17. The electronic device 6 is located between the first plate body 16 and the third plate body 18. The first plate body 16 and the third plate body 18 are respectively used to block the two sides of the electronic device 6 away from each other. By using the first plate body 16 and the third plate body 18 to block the electronic device 6, the electronic device 6 can be effectively prevented from falling off from the head portion 14.

[0042] A welding portion 19 that is parallel to the second plate body 17 is formed at the end of the tail portion 15 away from the second plate body 17. The welding portion 19 is provided with a plurality of solder receiving grooves 21. The plurality of solder receiving grooves 21 are arranged in parallel and are arranged along the length direction of the welding portion 19. During actual use, an external conductor is welded to the welding portion 19. Through the arrangement of the solder receiving grooves 21, during the process of welding the conductor to the welding portion 19, the external solder liquid is received by the solder receiving grooves 21, thereby ensuring that the conductor is firmly welded to the welding portion 19.

[0043] The first terminal 8 has a soldering foot portion, and the soldering foot portion is V-shaped. The soldering foot portion has a first foot portion 22 and a second foot portion 23 connected to the first foot portion 22. One end where the first foot portion 22 and the second foot portion 23 are connected protrudes from the first body 7. The ends of the first foot portion 22 and the second foot portion 23 that are away from each other are arranged on the first body 7 and are used for electrically conducting the first wire. The first wire is soldered to the ends of the first foot portion 22 and the second foot portion 23 that are away from each other. Through the structural arrangement of the soldering foot portion, during the soldering process of the soldering foot portion, the solder liquid enters between the first foot portion 22 and the second foot portion 23, ensuring that the soldering foot portion is firmly soldered to the external conductor.

[0044] It further includes a circuit board. The circuit board is attached to the outer surface of the insulating body 1. The insulating body 1 is provided with positioning posts 24. The circuit board has positioning holes for accommodating the positioning posts 24. By using the inner hole wall of the positioning holes to block and abut against the positioning posts 24, the insulating body 1 is ensured to be stably positioned on the circuit board. The first terminal 8 and the second terminal protrude from the same side of the insulating body 1 and are soldered to the circuit board. The structures of the first terminal 8 and the second terminal are the same.

[0045] During actual use, the circuit board is provided with soldering holes. The soldering foot portion is inserted into the soldering holes. By using the structural design of the first foot portion 22 and the second foot portion 23, on the one hand, it is convenient for the soldering foot portion to be inserted into the soldering holes, and on the other hand, it is ensured that the two sides of the first foot portion 22 and the second foot portion 23 that are away from each other respectively abut against the inner hole walls of the soldering holes, ensuring that the first terminal 8 and the second terminal are pre-assembled with the circuit board together, realizing the rapid and stable soldering of the terminals and the circuit board.

[0046] The power unit 2 includes an electromagnet 25, an armature 26, and a push piece 27. The electromagnet 25 is installed in the insulating body 1. The armature 26 is movably arranged in the insulating body 1. In this embodiment, the armature 26 is rotatably arranged in the insulating body 1. The two ends of the push piece 27 are respectively arranged on the armature 26 and the terminal unit 3. Preferably, the push piece 27 is slidably arranged in the insulating body 1. The electromagnet 25 drives the armature 26 to move under the action of magnetic force. The moving armature 26 drives the terminal 5 unit 3 to conduct or disconnect through the push piece 27.

[0047] A detection switch 28 for cooperating with the armature 26 is arranged in the insulating body 1. The detection switch 28 has a trigger head 29. The rotating armature 26 collides with the trigger head 29 to trigger the detection switch 28. In this embodiment, when the electromagnet 25 drives the armature 26 to rotate forward so that the push piece 27 drives the moving terminal 5 to disconnect from the static terminal 4, the forward-rotating armature 26 collides with the trigger head 29 of the detection switch 28 and triggers the detection switch 28. The triggered detection switch 28 outputs a signal to the control unit of the electric energy meter and displays that the terminal unit 3 is in the disconnected state. Of course, when the electromagnet 25 drives the armature 26 to rotate in the reverse direction, the terminal unit 3 is in the conducting state, and at this time, the armature 26 does not collide with the trigger head 29 of the detection switch 28.

[0048] The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation on the present invention.

Claims

1. A relay for an electricity meter facilitating wire connection, comprising an insulating body, a power unit disposed within the insulating body, and a terminal unit disposed on the insulating body and protruding outside the insulating body, wherein the power unit drives the terminal unit to conduct or disconnect; characterized in that: It further includes an electronic device disposed on the insulating body or the terminal unit. A first card slot is provided on one side of the insulating body. The insulating body is detachably provided with a first body received in the first card slot. The electronic device and the first body are respectively located on both sides of the insulating body. The first body is provided with a first terminal; the insulating body is provided with two parallel partitions protruding from the outer surface of the insulating body. A card wire groove is formed between the two partitions; the electronic device is electrically connected to a first wire received in the card wire groove, and one end of the first wire away from the electronic device is electrically connected to the first terminal; On the side of the insulating body away from the electronic device, there is a second card slot. The first card slot and the second card slot are located on the same side of the insulating body. The insulating body is detachably provided with a second body received in the second card slot. The second body is provided with a second terminal, and the second terminal is electrically connected to the power unit through two second wires; The number of the terminal units is multiple. The power unit drives the multiple terminal units to conduct or disconnect synchronously. Each terminal unit is configured with an electronic device. The terminal unit, the first card slot, the first body, and the card wire groove correspond one by one. The first wire of the electronic device of one terminal unit is electrically connected to the first terminal of one first body through one card wire groove; The first terminal has a welding foot part, and the welding foot part is V-shaped. The welding foot part has a first foot part and a second foot part connected to the first foot part. The ends of the first foot part and the second foot part away from each other are arranged on the first body and are used for electrically connecting the first wire; it further includes a circuit board provided with a welding hole. The welding foot part is inserted into the welding hole, and the two sides of the first foot part and the second foot part away from each other respectively abut against the inner hole wall of the welding hole.

2. The relay for an electricity meter facilitating wire connection according to claim 1, characterized in that: The terminal unit includes a moving terminal and a static terminal. The moving terminal includes a moving reed piece, a head part and a tail part. One end of the head part is located inside the insulating body. The moving reed piece is located inside the insulating body. One end of the moving reed piece is arranged on the head part. The power unit drives the other end of the moving reed piece to conduct or disconnect the static terminal; the other end of the head part protrudes out of the insulating body. The electronic device is sleeved on the outside of the end of the head part protruding out of the insulating body. The tail part is connected to the other end of the head part to prevent the electronic device from falling off from the other end of the head part.

3. The relay for an electricity meter facilitating wire connection according to claim 2, characterized in that: The other end of the head part has a first plate body and a second plate body bent and extended from the first plate body. One end of the tail part is welded to the end of the second plate body away from the first plate body. The tail part has a third plate body parallel to the first plate body. The electronic device is sleeved on the outside of the second plate body. The electronic device is located between the first plate body and the third plate body. The first plate body and the third plate body are respectively used to block the two sides of the electronic device away from each other.

4. The relay for an electricity meter facilitating wire connection according to claim 3, characterized in that: The end of the tail part away from the second plate body forms a welding part parallel to the second plate body. The welding part is provided with a plurality of solder receiving grooves. The plurality of solder receiving grooves are parallel to each other and are arranged along the length direction of the welding part.

5. The relay for an electricity meter facilitating wire connection according to claim 1, characterized in that: The circuit board is attached to the outer surface of the insulating body. The insulating body is provided with positioning posts. The circuit board has positioning holes for receiving the positioning posts. The first terminal and the second terminal protrude out of the same side of the insulating body and are welded to the circuit board.

6. The relay for an electricity meter facilitating wire connection according to claim 1, characterized in that: The power unit includes an electromagnet, an armature and a push piece. The electromagnet is arranged inside the insulating body, the armature is movably arranged inside the insulating body, and both ends of the push piece are respectively arranged on the armature and the terminal unit. The electromagnet drives the armature to move under the action of magnetic force, and the moving armature drives the terminal unit to conduct or disconnect via the push piece.

7. The relay for an electricity meter facilitating wire connection according to claim 6, characterized in that: A detection switch used in cooperation with the armature is arranged inside the insulating body. The detection switch has a trigger head, and the rotating armature collides with the trigger head to trigger the detection switch.

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