Magnetic latching relay

Abstract

The utility model discloses a magnetic latching relay, and belongs to the technical field of magnetic latching relays. The magnetic latching relay comprises a main terminal strip, the main terminal strip comprises a live wire inlet copper terminal and a live wire outlet copper terminal which are arranged in parallel at an interval, the end part of the live wire outlet copper terminal is provided with a static contact, the magnetic latching relay further comprises a movable contact spring, one end of the movable contact spring is fixedly arranged at the end part of the live wire inlet copper terminal, and the other end of the movable contact spring is fixedly arranged at the end part of the live wire outlet copper terminal. And a movable contact matched with the static contact is arranged at the other end of the movable contact. A static leading-out end and a movable leading-out end are omitted, the movable contact spring riveted with the movable contact is fixed on the live wire inlet copper terminal of the main terminal strip, the static contact is directly fixed on the end face of the live wire outlet copper terminal, and a contact system which is short in loop, small in resistance and little in heat is formed. And compared with a conventional magnetic latching relay, the magnetic latching relay is more material-saving, the material cost is greatly reduced, the manual production is simpler, and the magnetic latching relay has higher market competitiveness.

Description

Technical Field

[0001] The present application belongs to the technical field of magnetic latching relays, and in particular relates to a magnetic latching relay used in a single-phase smart electric energy meter. Background Art

[0002] The current single-phase smart energy meter uses a magnetic latching relay, which is in a very competitive market and requires low cost and high performance. However, the existing magnetic latching relay usually includes the following structure: the static contact is riveted to the static lead-out terminal, the moving contact is riveted to the moving reed group, and the moving reed group is riveted to the moving lead-out terminal to form a separate relay; the static lead-out terminal and the moving lead-out terminal of the relay are respectively connected to the live wire copper input terminal and the live wire copper output terminal of the main terminal row. The above contact system has a complex structure, uses a lot of materials, has a long circuit, high resistance, and generates a lot of heat. Utility Model Content

[0003] The purpose of the embodiment of the present application is to provide a magnetic latching relay, which omits the static lead-out terminal and the moving lead-out terminal, fixes the moving spring of the riveted moving contact on the live wire copper input terminal of the main terminal row, and directly fixes the static contact on the end face of the live wire copper output terminal, thereby forming a contact system with a short circuit, low resistance and low heat generation; compared with conventional magnetic latching relays, it is more material-saving, the material cost is greatly reduced, the manual production is simpler, and it is more competitive in the market, thereby solving at least one technical problem involved in the background technology.

[0004] In order to solve the above technical problems, this application is implemented as follows:

[0005] An embodiment of the present application provides a magnetic latching relay, comprising a main terminal row, wherein the main terminal row comprises a live wire copper input terminal and a live wire copper output terminal arranged in parallel and at intervals, and a static contact is provided at the end of the live wire copper output terminal. The magnetic latching relay also comprises a moving reed, one end of which is fixedly arranged at the end of the live wire copper input terminal, and the other end is provided with a moving contact that cooperates with the static contact.

[0006] As a preferred improvement of the present application, the moving contact is fixed to the moving spring piece by riveting.

[0007] As a preferred improvement of the present application, the movable spring piece is riveted and fixed to the live wire copper terminal.

[0008] As a preferred improvement of the present application, the movable spring is fixed to the live wire copper terminal by riveting with soft copper rivets.

[0009] As a preferred improvement of the present application, the magnetic holding relay also includes a magnetic circuit system and a push piece driven by the magnetic circuit system to generate movement, one end of the push piece is connected to the magnetic circuit system, and the other end is connected to the moving reed piece, and the movement of the push piece drives the moving contact and the static contact to close or open.

[0010] As a preferred improvement of the present application, the magnetic circuit system includes an armature assembly, a coil assembly and a fixed frame, the armature assembly is rotatably mounted on the fixed frame, the coil assembly is arranged adjacent to the armature assembly and generates a magnetic field to drive the armature assembly to rotate around the fixed frame, one end of the push piece is connected to the armature assembly, and the push piece is driven to move by the rotation of the armature assembly.

[0011] As a preferred improvement of the present application, the live wire copper input terminal and the live wire copper output terminal are both made of brass material, and the moving spring is made of red copper material.

[0012] As a preferred improvement of the present application, the main terminal row further comprises a plastic shell, the plastic shell extends out a plastic isolation portion which is hollowed out inside and is located between the live wire copper input terminal and the live wire copper output terminal.

[0013] Compared with the prior art, this application has the following beneficial effects:

[0014] 1. The magnetic latching relay provided in the present application has neither static lead-out terminal nor dynamic lead-out terminal, which greatly shortens the entire circuit and the resistance of the circuit is very small;

[0015] 2. This application uses soft copper rivets to rivet the moving spring piece to the end face of the live wire copper terminal, so that the riveting can be tight and gap-free, ensuring that the moving spring piece does not deform;

[0016] 3. The resistance of the entire circuit is very small. Under the same current, the heat generated will be less, which is safer and more reliable;

[0017] 4. The live wire enters the copper terminal, and the live wire exits the copper terminal. Part of it is exposed, and the plastic isolation part between the two copper terminals is hollowed out, so the heat dissipation is very good;

[0018] 5. The overall design size is small, eliminating the static lead-out terminal and the dynamic lead-out terminal. The copper terminal has no special-shaped processing, the total length is also shortened, the material cost is very low, the heat is less, and the heat dissipation is good;

[0019] 6. The process of welding copper terminals at the static lead-out ends in the production process is omitted, and the process of welding copper terminals at the dynamic lead-out ends is omitted, which reduces the production cost and simplifies the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0021] Figure 1 A schematic diagram of the structure of a magnetic latching relay provided in an embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the configuration structure of the movable spring and the live wire input and output copper terminals provided in an embodiment of the present application.

[0023] In the figure, 1. main terminal block; 10. plastic shell; 101. plastic isolation part; 11. live wire inlet copper terminal; 12. live wire outlet copper terminal; 2. moving reed; 21. moving contact; 3. magnetic circuit system; 31. armature assembly; 32. coil assembly; 33. fixing frame; 4. push piece; 5. static contact; 6. soft copper rivet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0026] See also Figure 1 and Figure 2 As shown, an embodiment of the present application provides a magnetic latching relay, comprising a main terminal block 1, a moving reed 2, a magnetic circuit system and a pusher 4, wherein the main terminal block 1 comprises a live wire copper input terminal 11 and a live wire copper output terminal 12 arranged in parallel and at intervals, a static contact 5 is provided at the end of the live wire copper output terminal 11, one end of the moving reed 2 is fixedly arranged at the end of the live wire copper input terminal 11, and the other end is provided with a moving contact 21 cooperating with the static contact 5.

[0027] The moving contact 21 is riveted and fixed to the moving reed 2 , the static contact 5 is riveted and fixed to the end of the live wire copper outlet terminal 12 , and the moving reed 2 is riveted and fixed to the live wire copper inlet terminal 11 .

[0028] Furthermore, the movable spring piece 2 is riveted and fixed to the live wire copper terminal 11 by means of a soft copper rivet 6 .

[0029] The magnetic circuit system drives the push piece 4 to move. One end of the push piece 4 is connected to the magnetic circuit system, and the other end is connected to the moving reed piece 2. The movement of the push piece 4 drives the moving contact 21 and the static contact 5 to close or open.

[0030] Specifically, the magnetic circuit system includes an armature assembly 31, a coil assembly 32 and a fixed frame 33. The armature assembly 31 is rotatably mounted on the fixed frame 33. The coil assembly 32 is arranged adjacent to the armature assembly 31 and generates a magnetic field to drive the armature assembly 31 to rotate around the fixed frame 33. One end of the push piece 4 is connected to the armature assembly 31, and the rotation of the armature assembly 31 drives the push piece 4 to move.

[0031] The live wire copper inlet terminal 11 and the live wire copper outlet terminal 12 are both made of brass material, and the movable spring piece 2 is made of copper material. In this way, since brass is relatively hard and copper is relatively soft, the movable spring piece 2 is riveted to the end surface of the live wire copper inlet terminal 11 using a soft copper rivet 6, so that the riveting can be tight and seamless, ensuring that the movable spring piece 2 does not deform.

[0032] The main terminal row 1 further comprises a plastic shell 10 , wherein the plastic shell 10 extends out a hollowed-out plastic isolating portion 101 located between the live wire copper input terminal 11 and the live wire copper output terminal 12 . Since the plastic isolating portion 101 is hollowed out, heat dissipation is very good.

[0033] Compared with the prior art, this application has the following beneficial effects:

[0034] 1. The magnetic latching relay provided in the present application has neither static lead-out terminal nor dynamic lead-out terminal, which greatly shortens the entire circuit and the resistance of the circuit is very small;

[0035] 2. This application uses soft copper rivets to rivet the moving spring piece to the end face of the live wire copper terminal, so that the riveting can be tight and gap-free, ensuring that the moving spring piece does not deform;

[0036] 3. The resistance of the entire circuit is very small. Under the same current, the heat generated will be less, which is safer and more reliable;

[0037] 4. The live wire enters the copper terminal, and the live wire exits the copper terminal. Part of it is exposed, and the plastic isolation part between the two copper terminals is hollowed out, so the heat dissipation is very good;

[0038] 5. The overall design size is small, eliminating the static lead-out terminal and the dynamic lead-out terminal. The copper terminal has no special-shaped processing, the total length is also shortened, the material cost is very low, the heat is less, and the heat dissipation is good;

[0039] 6. The process of welding copper terminals at the static lead-out ends in the production process is omitted, and the process of welding copper terminals at the dynamic lead-out ends is omitted, which reduces the production cost and simplifies the process.

[0040] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0041] In addition, it should be noted that the scope of the methods and systems in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0042] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A magnetic latching relay, comprising a main terminal block, wherein the main terminal block comprises a live wire copper input terminal and a live wire copper output terminal arranged in parallel and spaced apart, characterized in that: A static contact is arranged at the end of the live wire copper outlet terminal, and the magnetic latching relay further comprises a moving reed, one end of which is fixedly arranged at the end of the live wire copper outlet terminal, and the other end of which is provided with a moving contact cooperating with the static contact.

2. The magnetic latching relay according to claim 1, characterized in that: The moving contact is fixed to the moving spring piece by riveting.

3. The magnetic latching relay according to claim 1, characterized in that: The movable spring piece is riveted and fixed to the live wire copper terminal.

4. The magnetic latching relay according to claim 1 or 3, characterized in that: The movable spring is fixed to the live wire copper terminal by riveting with soft copper rivets.

5. The magnetic latching relay according to claim 1, characterized in that: The magnetic holding relay also includes a magnetic circuit system and a push piece driven by the magnetic circuit system to generate movement, one end of the push piece is connected to the magnetic circuit system, and the other end is connected to the moving reed piece. The movement of the push piece drives the moving contact and the static contact to close or open.

6. The magnetic latching relay according to claim 5, characterized in that: The magnetic circuit system includes an armature assembly, a coil assembly and a fixed frame. The armature assembly is rotatably mounted on the fixed frame. The coil assembly is arranged adjacent to the armature assembly and generates a magnetic field to drive the armature assembly to rotate around the fixed frame. One end of the push piece is connected to the armature assembly, and the push piece is driven to move by the rotation of the armature assembly.

7. The magnetic latching relay according to claim 4, characterized in that: The live wire copper input terminal and the live wire copper output terminal are both made of brass material, and the moving spring is made of red copper material.

8. The magnetic latching relay according to claim 1, characterized in that: The main terminal row also includes a plastic shell, and the plastic shell extends out of a plastic isolation portion which is hollowed out and located between the live wire copper input terminal and the live wire copper output terminal.

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