Three-phase magnetic latching relay

Abstract

The utility model belongs to the technical field of relays, and particularly relates to a three-phase magnetic latching relay, which comprises a relay shell formed by buckling and splicing a base and a cover plate, three contact assemblies are fixedly assembled in the base, and heat dissipation spaces with large spacing are arranged among the three contact assemblies. Wherein two of the contact assemblies are arranged in the base close to the edges of the two ends respectively, the other contact assembly is arranged in the position close to the center in the base, an armature assembly is rotationally assembled in the base, and a coil assembly used for enabling the armature assembly to swing in a compound mode is fixedly arranged in the position close to the middle in the base. According to the three-phase magnetic latching relay designed by the utility model, the heat dissipation efficiency is improved, the service life is prolonged, adverse effects of an external magnetic field on the coil assembly can be prevented through the reasonable layout of the three-phase magnetic latching relay, the reliability of the three-phase magnetic latching relay is improved, the reliability of the three-phase magnetic latching relay is improved, and the reliability of the three-phase magnetic latching relay is improved. The stability and reliability of the relay are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the relay technical field, specifically a three -phase magnetic latching relay. BACKGROUND

[0002] Three -phase magnetic latching relay passes through electromagnetic principle and permanent magnet and keeps contact state, need not to continuously energize, it power consumption is low, stable performance, response is fast, long life, and is widely used in communication, electric power, industrial automation and household appliance etc. Magnetic latching relay has isolation, automatic control, comprehensive signal and remote monitoring function, can expand control range, realizes automatic, remote control and monitoring.

[0003] One of the Chinese patents with the publication number CN201438441U discloses a large current low temperature three -phase magnetic latching relay, is equipped with magnetic circuit system, push card and corresponding three groups of contacts in the shell, and it is also equipped with a heat dissipation assembly on the shell, and the heat dissipation assembly comprises a cooling fin and a clamping groove, the clamping groove is fixed on the relay shell, and the cooling fin is clamped in the clamping groove, which can quickly dissipate heat, low temperature rise, improve the service life and safety, the head of the armature assembly of the magnetic circuit system is cylindrical structure, increases the wear resistance, improves the stability of the product.

[0004] The above-mentioned large current low temperature three -phase magnetic latching relay still has some problems in use, the contact assembly spacing in it is small, and the temperature of the contact assembly is concentrated and abnormally high during use, especially the temperature of the contact assembly in the middle is higher under the influence of the two sides of the contact assembly, which seriously affects the normal use and service life of the equipment, and the coil assembly in it is arranged close to the edge of the shell, if there is a magnetic field outside the shell, the armature assembly will be affected and cannot swing normally, resulting in the problem that the relay cannot be used normally, and the above-mentioned large current low temperature three -phase magnetic latching relay does not effectively solve these problems, therefore, a three -phase magnetic latching relay is proposed for the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the shortcomings of the existing three -phase magnetic latching relay, solve the problem of temperature concentration and abnormal temperature rise of the contact assembly, which greatly affects the normal use and service life of the equipment, and the coil assembly in it is arranged close to the edge of the shell, if there is a magnetic field outside the shell, the armature assembly will be affected and cannot swing normally, resulting in the problem that the relay cannot be used normally, a three -phase magnetic latching relay is proposed.

[0006] The utility model discloses a technical scheme that solves its technical problem is adopted: a kind of three-phase magnetic latching relay of the utility model, including by base and cover plate buckling assembly's relay shell, three contactor assemblies are fixedly assembled in the base, three The heat dissipation space with large spacing is between the contactor assembly, two contactor assemblies are respectively located in the base interior near two end edge positions and are set, another contactor assembly is set to near the base interior center position, the contactor assembly includes static sheet component and the corresponding dynamic sheet component of its setting, static contact is fixedly arranged on the static sheet component, spring piece assembly is fixedly arranged on the dynamic sheet component, the dynamic contact opposite to static contact is fixedly arranged on the spring piece assembly, armature assembly is rotatably assembled in the base, coil assembly for making armature assembly compound swing is fixedly arranged in the base near the middle position, linkage plate for making armature assembly and spring piece assembly linkage to realize on-off is movably arranged in the base.

[0007] Preferably, the external part of the relay shell is fixedly assembled with a shielding cover at the position of the coil assembly.

[0008] Preferably, a fixing hole is formed on the relay shell for fixing it on the carrier.

[0009] Preferably, a limiting groove is formed on one side of the relay shell.

[0010] The utility model discloses the beneficial effects of:

[0011] 1. The three-phase magnetic latching relay designed in the utility model is particularly designed and optimized in terms of heat dissipation: a large enough spacing is provided between the three contactor assemblies, forming an effective heat dissipation channel to provide a large-spacing heat dissipation space for the contactor assemblies. This design makes it difficult for heat to accumulate inside the relay, allowing it to quickly dissipate to the external environment, thereby reducing the temperature of the relay. Not only does it improve the heat dissipation efficiency, but also makes the relay more stable and reliable during operation. This design helps to prolong the service life of the relay and reduce the cost of maintenance due to overheating.

[0012] 2. The coil assembly is designed and optimized in the utility model: it is set at the middle position of the base without being close to the edge, which can effectively reduce the interference of external magnetic field. Through the reasonable layout of the utility model, the adverse effects of such interference on the working state of the coil assembly can be reduced, improving the stability and reliability of the relay. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the utility model and form part of the present application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation on the utility model. In the drawings:

[0014] Fig. 1 is the structure diagram of the base inside after the cover plate is removed of the utility model;

[0015] Fig. 2 is the front structure perspective view of the utility model as a whole;

[0016] Fig. 3 is the back structure perspective view of the utility model as a whole;

[0017] Legend:

[0018] 1, relay housing; 101, base; 102, cover plate; 2, contact assembly; 201, static sheet assembly; 2011, static contact; 202, dynamic sheet assembly; 203, reed assembly; 2031, dynamic contact; 3, coil assembly; 4, armature assembly; 5, linkage plate; 6, shield cover; 7, fixing hole; 8, limiting groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Specific embodiments are given below.

[0021] Please refer to Figs. 1-3The utility model discloses a three -phase magnetic latching relay, including by base 101 and the cover plate 102 buckle assembly's relay shell 1, three contact assembly 2 are fixedly assembled in the base 101, three contact assembly 2 between the large space of heat dissipation has, wherein two contact assembly 2 are located in the interior of base 101 near two end edge position setting, another contact assembly 2 sets up at near the interior center position of base 101, contact assembly 2 includes the static sheet component 201 and the corresponding dynamic sheet component 202 of setting of it, the static contact 2011 of fixed setting is provided on static sheet component 201, the spring piece component 203 of fixed setting is provided on dynamic sheet component 202, the dynamic contact 2031 of fixed setting is provided on spring piece component 203 and is opposite static contact 2011, the armature assembly 4 is rotatably assembled in the base 101, the coil assembly 3 for making armature assembly 4 compound swing is fixedly set up in the interior of base 101 near the position of its middle part, the linkage plate 5 for making armature assembly 4 and spring piece component 203 linkage realizes the linkage of on-off is movably set up in the base 101, when working, in electrical equipment, heat dissipation is a vital problem, along with the current through contact assembly 2, will produce certain heat, if heat can not be promptly dissipated, will lead to the temperature of equipment to rise, and then influence the performance and life of equipment, the three -phase magnetic latching relay of the utility model has carried out the special design optimization in heat dissipation aspect: the sufficient spacing between three contact assembly 2 is arranged, forms the effective heat dissipation channel and provides the large space of heat dissipation for contact assembly 2, this design makes heat not easy to accumulate in the relay, can quickly dissipate to the external environment, thereby reduce the temperature of relay, through the position and spacing of contact assembly 2 of reasonable layout, not only improves the heat dissipation efficiency, but also makes the relay more stable and reliable in the working process, this design helps to prolong the service life of relay, reduces the failure and maintenance cost caused by overheating, simultaneously, setting coil assembly 3 in the middle position of base 101 not close to its edge, can effectively reduce the interference of external magnetic field to it, in the complex electromagnetic environment, external magnetic field can have the adverse effect on the working state of coil assembly 3, leads to the performance of relay to decline or fail, through the reasonable layout of the utility model, can reduce this interference, improve the stability and reliability of relay.

[0022] Further, the external shielding cover 6 is fixedly assembled on the relay shell 1 at the position of the coil assembly 3.

[0023] Further, the relay shell 1 is provided with a fixing hole 7 for fixing on a carrier.

[0024] Further, the relay housing 1 is provided with a limiting groove 8 on one side, when the relay is fixed by the worker, the protrusion of the installation position is inserted into the limiting groove 8 of the corresponding position on the relay housing 1, the relay is limited, the installation stability of the relay is greatly improved, the relay is not easy to fall off when it is impacted by the outside, and is more stable.

[0025] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A three-phase magnetic latching relay comprising a relay housing (1) assembled by snap-fitting a base (101) and a cover plate (102), characterized in that: Three contact assemblies (2) are fixedly assembled in the base (101), and the three contact assemblies (2) have a large-spacing heat dissipation space, wherein two of the contact assemblies (2) are respectively arranged at positions close to the two end edges inside the base (101), and the other contact assembly (2) is arranged at a position close to the center inside the base (101), the contact assembly (2) comprises a static sheet assembly (201) and a corresponding movable sheet assembly (202) arranged thereon, the static sheet assembly (201) is fixedly provided with a static contact (2011), the movable sheet assembly (202) is fixedly provided with a reed assembly (203), the reed assembly (203) is fixedly provided with a movable contact (2031) opposite to the static contact (2011), an armature assembly (4) is rotatably assembled in the base (101), a coil assembly (3) for making the armature assembly (4) swing back and forth is fixedly arranged at a position close to the center inside the base (101), and a linkage plate (5) for making the armature assembly (4) and the reed assembly (203) link to realize on-off is movably arranged in the base (101).

2. A three-phase latching relay according to claim 1, characterized in that: A shielding cover (6) is fixedly assembled at a position of the coil assembly (3) outside the relay shell (1).

3. A three-phase latching relay according to claim 1, characterized in that: A fixing hole (7) for fixing the relay shell (1) on a carrier is formed on the relay shell (1).

4. A three-phase latching relay according to claim 1, characterized in that: A limiting groove (8) is formed on one side of the relay shell (1).

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