Anti-interference high-stability magnetic latching relay

Abstract

The utility model belongs to the technical field of relays, and particularly relates to an anti-interference high-stability magnetic latching relay, which comprises a base, a clamping plate, a shell and the like, accurate positioning matching systems are constructed among a moving plate assembly, a static plate assembly and a coil assembly as well as among the moving plate assembly, the static plate assembly and the coil assembly, the base and the clamping plate, assembly errors are effectively reduced, and the reliability is improved. According to the invention, poor contact and motion clamping stagnation are avoided, the fault rate is reduced, stable and lasting operation under complex working conditions is ensured, the optimized internal space layout enables all components to be tightly and orderly arranged, the electromagnetic conversion efficiency and response speed are improved, the overall electrical performance is enhanced, and the performance is excellent in high-end application scenarios such as high-speed signal switching and precise electronic equipment control. The contact performance is improved, the contact resistance is reduced, heating and electric sparks are reduced, the service life of the contact is prolonged, the load is shared by two current channels, and the current adaptability is widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to relay technology field, specifically is a kind of anti-interference high stability magnetic latching relay. BACKGROUND

[0002] Magnetic latching relay is a new type of relay, and the magnetic latching relay is widely used in remote control, telemetry, communication, automatic control and other fields, and is suitable for applications requiring long-time circuit state maintenance, and attention should be paid to correct reset state during use, and the voltage applied to the coil should be ensured to reach the rated voltage value.

[0003] The existing magnetic latching relay mainly consists of the following parts: coil, core, contact system, etc., and the working principle is as follows: when the coil is energized, a magnetic field is generated to attract the core, and the movement of the core drives the contact system to act, so that the normally open contact is closed and the normally closed contact is opened, to realize the connection of the circuit.

[0004] At present, the magnetic latching relay in the prior art has the following disadvantages: the structure design of the relay has many limitations, the traditional relay lacks a precise positioning system in assembly assembly, the positioning cooperation between the moving piece assembly, the static piece assembly and the coil assembly is not precise, and the positioning connection between the base and the clamping plate is also loose and rough, this inaccurate assembly mode is similar to a simple mechanical structure assembled by piecing together, and it is difficult to achieve high coordination and fit between the components, due to the lack of precise positioning, during the assembly process, it is inevitable to produce a large assembly error, which further causes a series of serious problems, such as frequent occurrence of poor contact, the moving contact and the static contact cannot form a stable and reliable electrical connection when contacting, resulting in unstable contact resistance, which is prone to generate heat, electric spark and other adverse conditions, which not only reduces the electrical performance of the relay, but also greatly shortens the service life of the contact, and the movement jamming problem is also prominent, the components cannot smoothly cooperate during the movement process, so that the response speed of the relay is slow, which seriously affects its performance in high-speed signal switching and other application scenarios with high response timeliness requirements, therefore, an anti-interference high stability magnetic latching relay is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to make up for the deficiencies of the existing magnetic latching relay, an anti-interference high stability magnetic latching relay is proposed.

[0006] The utility model discloses a kind of anti-interference high-stability magnetic latching relays, including through buckle assembly fixed base, clamping plate, shell, the base is equipped with the contact piece assembly consisting of moving piece assembly, static piece assembly in, and the armature assembly for driving contact piece assembly on-off rotationally arranged, the base is also equipped with coil assembly for driving armature assembly reciprocating pivoting in, and the linkage plate for linkage armature assembly and moving piece assembly, the moving piece assembly includes moving piece, reed, moving contact point, the static piece assembly includes static piece, static contact point, the base is provided with first positioning part for assembling moving piece assembly, and second positioning part for assembling static piece assembly, first positioning column, second positioning column, third positioning column are provided on the moving piece, first positioning groove, second positioning groove, third positioning groove are provided on the clamping plate respectively with first positioning column, second positioning column, third positioning column cooperation, positioning piece is provided on the static piece, fourth positioning groove is formed in the clamping plate with positioning piece cooperation, the coil assembly includes two yokes, fourth positioning column and fifth positioning column are provided on the yoke, fifth positioning groove is formed in the base with fourth positioning column cooperation, sixth positioning groove is provided on the clamping plate with fifth positioning column cooperation.

[0007] Preferably, the sixth positioning column is fixedly arranged on the clamping plate, and the seventh positioning groove matched with the sixth positioning column is fixedly arranged in the base.

[0008] Preferably, a notch is formed in the base at the static piece, and the insert block matched with the notch is arranged on the clamping plate to cross-clamp the static piece.

[0009] Preferably, the spring piece is divided into two groups of half-spring pieces by the cutout, and the two moving contact points are fixed on the half-spring pieces.

[0010] Preferably, the limiting strip for limiting the base is arranged on the inner wall of the shell.

[0011] Preferably, the magnetic blow magnetic steel is arranged on the base and the clamping plate at the static contact point and the moving contact point.

[0012] The utility model has the advantages that:

[0013] This invention provides a highly stable magnetic latching relay with anti-interference capabilities. The unique positioning structure design of its internal components is the core element for improving overall performance. The moving plate assembly, stationary plate assembly, and coil assembly form an extremely precise positioning and matching system, and all three are positioned relative to the base and clamping plate. The precision of this matching is similar to the seamlessly integrated "gear set" in high-end precision machinery. Through this design, the components can achieve a high degree of consistency and accuracy during assembly, thereby greatly reducing the troublesome problems such as poor contact and motion jamming that are easily caused by traditional assembly errors. This directly leads to the effective control and significant reduction of the relay's failure rate. Even when facing various complex and harsh working environments, it can still maintain a stable and reliable operating state and exhibit excellent durability, providing a solid guarantee for long-term continuous operation. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a perspective view of the entire utility model;

[0016] Figure 2 This is a three-dimensional view of the internal structure of this utility model after the outer shell has been removed;

[0017] Figure 3 yes Figure 2 3D view of the middle plywood assembly structure;

[0018] Figure 4 yes Figure 2 3D view of the structure without the splint;

[0019] Figure 5 This is a three-dimensional structural view of the clamping plate of this utility model;

[0020] Figure 6 This is a three-dimensional structural view of the base and coil assembly of this utility model;

[0021] Figure 7 This is a three-dimensional structural view of the assembly of the outer shell, base, and clamping plate of this utility model;

[0022] Figure 8 This is a three-dimensional structural view of the moving and stationary plates of this utility model;

[0023] Legend:

[0024] 101, base; 102, clamping plate; 1021, first positioning groove; 1022, second positioning groove; 1023, third positioning groove; 1024, fourth positioning groove; 103, shell; 2, contact assembly; 201, moving piece assembly; 2011, moving piece; 20111, first positioning column; 20112, second positioning column; 20113, third positioning column; 2012, spring piece; 2013, moving contact; 202, static piece assembly; 2021, static piece; 20211, positioning piece; 2022, static contact; 3, armature assembly; 4, coil assembly; 401, yoke; 4011, fourth positioning column; 4012, fifth positioning column; 5, linkage plate; 6, first positioning portion; 7, second positioning portion; 8, fifth positioning groove; 9, sixth positioning groove; 10, sixth positioning column; 11, seventh positioning groove; 12, S-shaped reinforcing rib; 13, positioning fixed piece; 14, notch; 15, insertion block; 16, disconnecting cutout; 17, half spring piece; 18, limiting strip; 19, magnetic blow magnetic steel. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0026] Specific embodiments are given below.

[0027] Please refer to Figures 1-8The utility model discloses an anti -interference's high stability magnetic latching relay, including through the buckle assembly fixed base 101, clamping plate 102, shell 103, the base 101 is assembled with the contact piece component 2 that is composed of the moving piece component 201, static sheet component 202 to the base 101, and the armature component 3 that is rotatoryly set for driving contact piece component 2 on-off, the base 101 is also assembled with coil component 4 for driving armature component 3 and reciprocating pivot swing, and the linkage plate 5 for the linkage armature component 3 with moving piece component 201, the moving piece component 201 includes moving piece 2011, spring piece 2012, moving contact 2013, static sheet component 202 includes static sheet 2021, static contact 2022, the first positioning portion 6 for assembling moving piece component 201 and the second positioning portion 7 for assembling static sheet component 202 are provided on the base 101, first positioning column 20111, second positioning column 20112, third positioning column 20113 are provided on moving piece 2011, first positioning groove 1021, second positioning groove 1022, third positioning groove 1023 that cooperate with first positioning column 20111, second positioning column 20112, third positioning column 20113 respectively are provided on clamping plate 102, positioning piece 20211 is provided on static sheet 2021, the fourth positioning groove 1024 that cooperates with positioning piece 20211 is seted up on clamping plate 102, coil component 4 includes two yokes 401, fourth positioning column 4011 and fifth positioning column 4012 are provided on yoke 401, the fifth positioning groove 8 that cooperates with fourth positioning column 4011 is seted up on the base 101, the sixth positioning groove 9 that cooperates with fifth positioning column 4012 is provided on clamping plate 102.In operation, the moving plate 2011 is initially positioned by the first positioning part 6 on the base 101, and the first positioning column 20111, the second positioning column 20112 and the third positioning column 20113 of the moving plate 2011 are respectively tightly matched with the corresponding first positioning slot 1021, the second positioning slot 1022 and the third positioning slot 1023 on the clamping plate 102, which accurately limits the position of the moving plate 2011 in the three-dimensional space. The static plate assembly 202 is positioned by the second positioning part 7 of the base 101, and the positioning plate 20211 on the static plate 2021 is inserted into the fourth positioning slot 1024 of the clamping plate 102, which further limits the displacement degree of freedom of the static plate 2021 from multiple directions, so that the static plate 2021 remains highly stable during the operation of the relay, ensuring that the relative position accuracy between the static contact 2022 and the moving contact 2013 meets the electrical performance requirements. The yoke 401 of the coil assembly 4 is matched with the fifth positioning slot 8 of the base 101 through the fourth positioning column 4011, and matched with the sixth positioning slot 9 of the clamping plate 102 through the fifth positioning column 4012, which realizes accurate positioning in the space formed by the base 101 and the clamping plate 102, ensures that the magnetic field generated by the coil can uniformly and stably act on the armature assembly 3, and makes the movement response of the armature assembly 3 more sensitive and accurate. The highly accurate assembly positioning system significantly improves the overall performance and reliability of the relay. Through fine positioning of the moving plate assembly, the static plate assembly and the coil assembly, the problems of poor contact and movement jam caused by component assembly errors are greatly reduced, the failure rate of the relay is effectively reduced, and the stability and durability of the relay under various working conditions are improved. In a long-term frequent on-off working environment, accurate positioning can ensure that the moving contact and the static contact can maintain good electrical connection every time, reduce contact resistance fluctuation, and thus reduce the phenomena of heating and electric spark caused by poor contact, prolong the service life of the contact, and ensure the stable operation of the circuit system. This multi-component cooperative positioning design concept is conducive to optimizing the spatial layout of the relay (such as the mutual clamping and positioning of the mortise and tenon structure), and the close and orderly cooperation between the components enables more efficient function integration in a limited space, avoiding the problems of bloated structure or limited performance caused by unreasonable spatial layout.

[0028] Further, the sixth positioning column 10 is fixedly arranged on the clamping plate 102, the seventh positioning groove 11 matched with the sixth positioning column 10 is fixedly arranged in the base 101, the S-shaped reinforcing rib 12 is fixedly arranged in the base 101, and the two positioning fixed pieces 13 are fixedly arranged on the clamping plate 102 and are staggered with the S-shaped reinforcing rib 12 and are tightly fitted on the two sides of the S-shaped reinforcing rib 12; in the working process, the sixth positioning column 10 of the clamping plate 102 is accurately inserted into the seventh positioning groove 11 of the base 101, this matching mode provides accurate positioning and reliable supporting force for the clamping plate 102 in the direction perpendicular to the plane of the clamping plate 102, prevents the clamping plate 102 from being displaced upward and downward or inclined relative to the base 101, the S-shaped reinforcing rib 12 in the base 101 is a structural reinforcing component, the unique S-shaped structure can effectively disperse and bear the stress from various directions, when the relay is subjected to external mechanical force, the S-shaped reinforcing rib 12 absorbs and dissipates energy through the structural deformation, avoids the stress from being concentrated in the local area to cause structural damage, and the two positioning fixed pieces 13 on the clamping plate 102 are staggered with the S-shaped reinforcing rib 12 and are tightly fitted on the two sides of the S-shaped reinforcing rib 12, this structural design not only further limits the displacement of the clamping plate 102 in the horizontal direction and enhances the connection stability between the clamping plate 102 and the base 101, but also, when the external force is borne, the positioning fixed pieces 13 and the S-shaped reinforcing rib 12 cooperate with each other to uniformly transmit the external force to the whole base 101 structure, form a cooperative stress mechanism, effectively improve the anti-deformation ability of the whole relay structure, significantly enhance the mechanical stability and the anti-external interference ability of the relay, this strengthened structural design can ensure that the internal components of the relay always maintain a relatively stable positional relationship, maintain the normal electrical connection and mechanical movement function, greatly reduce the failure rate caused by structural looseness and deformation, and improve the reliability and service life of the equipment.

[0029] Further, the gap 14 is arranged on the base 101 at the static sheet 2021, and the plug 15 is arranged on the clamping plate 102 and cross-clamps the static sheet 2021 in cooperation with the gap 14; in the working process, when the static sheet 2021 is installed on the base 101, a part of the static sheet 2021 is located in the gap 14 area of the base 101, when the clamping plate 102 is installed in place, the plug 15 on the clamping plate 102 is inserted into the gap 14 and tightly contacts the static sheet 2021, and the static sheet 2021 is cross-clamped from multiple directions, this clamping mode applies multidirectional constraint in the plane of the static sheet 2021, limits the translational freedom in the horizontal direction and the rotational freedom around the vertical axis of the static sheet 2021, when subjected to mechanical interference of the external environment, the static sheet 2021 can maintain a stable positional state under the cross-clamping action of the plug 15 and the gap 14, so that the relay can reliably work under various complex working conditions, widens the application range and improves the versatility of the product.

[0030] Further, the center of the spring leaf 2012 is divided into two groups of half spring leaves 17 by opening a disconnection cut 16, and two moving contacts 2013 are respectively fixed on the half spring leaves 17; in operation, normally, the spring leaf 2012 is in a natural state when not under stress, and the two half spring leaves 17 are relatively independent but maintain a certain connection relationship through the disconnection cut 16; when the armature assembly 3 is driven to move by the coil assembly 4, the force is transmitted to the spring leaf 2012 through the linkage plate 5 to make the spring leaf 2012 deform under stress; since the spring leaf 2012 is divided into two groups of half spring leaves 17 by the disconnection cut 16, each half spring leaf 17 can independently respond to external force according to its own elastic properties to drive the moving contact 2013 fixed thereon to move; in the process of contact or separation between the moving contact 2013 and the static contact 2022, the two groups of half spring leaves 17 can automatically adjust the position and contact pressure of the moving contact 2013 according to the actual contact condition; for example, when the moving contact 2013 initially contacts the static contact 2022, if there is a slight unevenness or deviation, the two half spring leaves 17 can produce different degrees of elastic deformation, so that the moving contact 2013 can better fit the static contact 2022 to achieve uniform and stable contact; at the same time, in the process of current conduction, the current can be transmitted through the double channels formed by the two half spring leaves 17, avoiding the problems of heat concentration caused by excessive current in a single channel or local poor contact, significantly improving the contact performance of the moving contact 2013 and the static contact 2022, and improving the uniformity and stability of the contact, which helps to reduce the contact resistance, reduce the heat and electric spark phenomenon caused by poor contact, thereby prolonging the service life of the contact and improving the electrical durability of the relay.

[0031] Further, the inner wall of the shell 103 is provided with a limiting strip 18 for limiting the base 101; in operation, when the shell 103 is assembled on the assembly composed of the base 101 and the clamping plate 102, the limiting strip 18 on the inner wall of the shell 103 is in close contact with the edge of the base 101, and the limiting strip 18 limits the base 101 in the horizontal direction, limiting the translational freedom of the base 101 in the shell 103, preventing the base 101 from moving horizontally due to external impact force, vibration or improper operation during handling and installation, and improving the reliability and service life of the equipment.

[0032] Further, the base 101 and the clamping plate 102 are provided with magnetic blow magnetic steel 19 at the static contact 2022 and the dynamic contact 2013; during the on-off process of the relay, when the dynamic contact 2013 and the static contact 2022 are separated or closed, due to the inductance and other factors in the circuit, an electric arc is generated between the contacts, at this time, the magnetic blow magnetic steel 19 on the base 101 and the clamping plate 102 generates a magnetic field, according to the principle of electromagnetic force, the charged particles in the electric arc are subjected to the Lorentz force in the magnetic field, so that the charged particles in the electric arc are elongated and quickly moved in a specific direction (usually away from the contact) under the driving of the Lorentz force, so that the electric arc is extinguished in a short time, the ablation of the electric arc to the contact is reduced, the service life of the contact is prolonged, and the on-off durability of the relay is improved.

[0033] 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.

[0034] The basic principles, 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 principles 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 high-stability magnetic latching relay with anti-interference capability, characterized in that: The system includes a base (101), a clamping plate (102), and a housing (103) that are fixed together by snap fasteners. The base (101) is equipped with a contact assembly (2) consisting of a moving plate assembly (201) and a stationary plate assembly (202), and an armature assembly (3) rotatably configured to drive the contact assembly (2) to switch on and off. The base (101) is also equipped with a coil assembly (4) for driving the armature assembly (3) to reciprocate and pivot, and a linkage between the armature assembly (3) and the moving plate. The linkage plate (5) of the component (201), the moving plate assembly (201) includes a moving plate (2011), a spring plate (2012), and a moving contact (2013), the stationary plate assembly (202) includes a stationary plate (2021) and a stationary contact (2022), the base (101) is provided with a first positioning part (6) for assembling the moving plate assembly (201) and a second positioning part (7) for assembling the stationary plate assembly (202), the moving plate (2011) is provided with a first positioning part (6) for assembling the moving plate assembly (201) and a second positioning part (7) for assembling the stationary plate assembly (202), the moving plate (2011) is provided with a first positioning part (6) for assembling the moving plate assembly (201) and a second positioning part (7) for assembling the stationary plate assembly (202). The clamping plate (102) is provided with a first positioning groove (1021), a second positioning groove (1022), and a third positioning groove (1023) respectively, which cooperate with the first positioning groove (20111), the second positioning groove (20112), and the third positioning groove (20113). A positioning piece (20211) is provided on the stationary piece (2021). The coil assembly (4) includes two yokes (401), on which a fourth positioning groove (1024) is provided to cooperate with the positioning piece (20211). The yoke (401) is provided with a fourth positioning post (4011) and a fifth positioning post (4012). The base (101) is provided with a fifth positioning groove (8) to cooperate with the fourth positioning post (4011). The clamping plate (102) is provided with a sixth positioning groove (9) to cooperate with the fifth positioning post (4012).

2. The anti-interference, high-stability magnetic latching relay according to claim 1, characterized in that: A sixth positioning post (10) is fixedly installed on the clamping plate (102), a seventh positioning groove (11) that cooperates with the sixth positioning post (10) is fixedly installed in the base (101), an S-shaped reinforcing rib (12) is fixedly installed in the base (101), and two positioning fixing pieces (13) that are staggered with the S-shaped reinforcing rib (12) and fit against its two sides are fixedly installed on the clamping plate (102).

3. The anti-interference, high-stability magnetic latching relay according to claim 1, characterized in that: The base (101) has a notch (14) at the stationary piece (2021), and the clamping plate (102) is provided with a plug (15) that cooperates with the notch (14) to cross-clamp the stationary piece (2021).

4. The anti-interference, high-stability magnetic latching relay according to claim 1, characterized in that: The center of the reed (2012) is divided into two sets of half reeds (17) by opening a break cut (16), and the two moving contacts (2013) are respectively fixed on the half reeds (17).

5. The anti-interference, high-stability magnetic latching relay according to claim 1, characterized in that: The inner wall of the outer shell (103) is provided with a limiting strip (18) for limiting the base (101).

6. The anti-interference, high-stability magnetic latching relay according to claim 1, characterized in that: The base (101) and the clamping plate (102) are each equipped with a magnetic blow magnet (19) at the stationary contact (2022) and the moving contact (2013).

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