Relay with adaptively installed push rod assembly

Abstract

The relay comprises a movable terminal and compression springs installed on the two sides of the upper end of the movable terminal, the movable terminal is clamped in a pushing card, the pressure springs are clamped between the interior of the pushing card and the movable terminal in a limiting mode, movable contacts are arranged at the bottoms of the two ends of the movable terminal, and the movable contacts are connected with the movable terminal. According to the technical scheme of the utility model, under the cooperation of the push rod assembly and the magnetic control driving mechanism coil, when the relay is closed, the force generated by the compression spring and the force generated by the electromagnetic force of the second suction coil are in the same direction and act on the movable terminal together. According to the miniature magnetic latching relay, the initial force when the relay is closed is improved, so that the closing time of the relay is effectively shortened, and the miniature magnetic latching relay has a large contact gap, can quickly extinguish arc under the dual assurance of the arc extinguishing magnet, is simple in structure and low in height, and can meet the opening and closing of a direct-current load.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a relay with a push rod assembly for adapter installation. Background Technology

[0002] With the continuous development of new energy equipment / power supplies, relays are required to have higher load DC switching capabilities and greater current carrying capacity. They also increasingly demand energy saving, ease of use, space saving, safety, and high efficiency. To improve cutting capability and safety insulation, relays increase contact gaps; however, larger contact gaps lead to delays in pull-in time, failing to meet the response time requirements of some power supplies. Currently, to address this issue, relays on the market apply several times the rated voltage to the coil during operation for rapid switching. However, this increases the complexity of circuit design and generates significant coil power consumption and heat. Therefore, this paper proposes a relay with a push-rod assembly for installation, thus solving the above problems. Utility Model Content

[0003] To address the problems mentioned above, the technical solution adopted by this utility model is: a relay with a push rod assembly for adaptation and installation, comprising:

[0004] A push rod assembly includes a movable terminal and compression springs installed on both sides of the upper end of the movable terminal. The movable terminal is snapped into the inside of a push card. A pressure spring is used to limit the connection between the inside of the push card and the movable terminal. Movable contacts are provided at the bottom of both ends of the movable terminal. A push rod body is fixedly connected to the bottom end of the push card by a thread.

[0005] And an insulating base adapted to install the push rod assembly, wherein a magnetic control drive mechanism is provided inside the insulating base below the push rod assembly, the top end of the push card is slidably engaged inside the insulating base, and the top end of the compression spring is engaged with the top side of the inner wall of the insulating base;

[0006] The magnetic control drive mechanism includes a stationary iron core one, a stationary iron core two, a yoke, a coil one, a coil two, a coil frame, and a movable iron core. The stationary iron core two is fixedly installed inside the bottom end of the yoke, the coil one is installed above the coil frame, the coil two is installed below the coil frame, and the movable iron core is located inside the coil one and the coil two.

[0007] As a preferred technical solution of this utility model, the stationary iron core is fixedly installed in the middle of the upper cover, the upper cover is snapped onto the top of the yoke, the coil is directly opposite the coil, and a copper sleeve is sleeved on the inner side of the coil and the coil, and the movable iron core is slidably sleeved on the inner side of the copper sleeve.

[0008] As a preferred embodiment of this utility model, the coil frame is installed inside the yoke, a coil magnet is provided on the outside of the joint between coil one and coil two, and a coil terminal is provided at the bottom of the coil frame, the coil terminal connecting coil one and coil two.

[0009] As a preferred technical solution of this utility model, the push rod body is fixedly connected to the internal thread of the top of the movable iron core, and the push rod body slides through the interior of the stationary iron core.

[0010] As a preferred embodiment of this utility model, a fixed terminal one is provided inside the insulating base near the movable terminal at one end, and a fixed terminal two is provided inside the insulating base near the movable terminal at the other end. Fixed contacts are provided at the top of both fixed terminal one and fixed terminal two, and the fixed contacts are directly opposite the movable contacts. Connecting terminals are provided at one end of both fixed terminal one and fixed terminal two inside the insulating base.

[0011] As a preferred technical solution of this utility model, a low-voltage connection port is provided at the bottom of the insulating base, the low-voltage connection port is connected to the connection terminal, and an arc-extinguishing magnet is provided inside the insulating base on both sides of the fixed terminal one and the fixed terminal two. A shell is connected to one side of the insulating base.

[0012] This invention has the following advantages: By cooperating with the push rod assembly and the magnetic control drive mechanism coil, when the relay is closed, the force generated by the compression spring and the electromagnetic force generated by the coil are in the same direction and act together on the movable terminal, which increases the initial force when the relay is closed, thereby effectively shortening the relay closing time. It has a large contact gap and can quickly extinguish the arc with the dual guarantee of the arc-extinguishing magnet. It is a small magnetic latching relay with a simple structure and low height, which can meet the opening and closing of DC loads. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall assembly structure of a preferred embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the overall exploded structure of a preferred embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the push rod assembly structure of a preferred embodiment of the present invention.

[0016] Explanation of reference numerals in the attached drawings: 1. Fixed terminal one; 2. Fixed contact; 3. Fixed terminal two; 4. Insulating base; 5. Compression spring; 6. Top cover; 7. Static iron core one; 8. Static iron core two; 9. Yoke; 10. Coil one; 11. Coil two; 12. Coil frame; 13. Coil terminal; 14. Movable iron core; 15. Push rod body; 16. Pushing clip; 17. Movable terminal; 18. Movable contact; 19. Pressure spring; 20. Coil magnet; 21. Copper sleeve; 22. Outer shell; 23. Connecting terminal; 24. Arc extinguishing magnet; 25. Low-voltage connection port. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Please refer to the following: Figure 3This utility model discloses a push rod assembly, comprising: a movable terminal 17, and compression springs 5 ​​installed on both sides of the upper end of the movable terminal 17. The movable terminal 17 is snapped into the interior of a push clip 16. A pressure spring 19 is engaged between the inside of the push clip 16 and the movable terminal 17 for limiting. Movable contacts 18 are provided at the bottom of both ends of the movable terminal 17. A push rod body 15 is threadedly fixedly connected to the bottom end of the push clip 16. Magnetic force is generated by coil one 10 or coil two 11, which drives the push rod body 15 and the push clip 16 to move. The push clip 16 drives the movable terminal 17 to move, thereby enabling the movable contacts 18 and the fixed contacts 2 to open and close. When the movable contacts 18 and the fixed contacts 2 are disconnected, the movable terminal 17 drives the compression springs 5 ​​to move, generating compression force. When closing, the compression force of the compression springs 5 ​​is released and acts on the movable terminal 17, accelerating the movement of the movable terminal 17 and thus shortening the closing time inside the base.

[0021] Combination Figure 1 and Figure 2 As shown, one type of relay adapted to a push rod assembly includes: a push rod assembly and an insulating base 4 adapted to install the push rod assembly. A magnetic control drive mechanism is provided inside the insulating base 4 below the push rod assembly. The top of the push clip 16 is slidably engaged inside the insulating base 4, and the top of the compression spring 5 is engaged with the top side of the inner wall of the insulating base 4. The magnetic control drive mechanism includes a stationary iron core 7, a stationary iron core 8, a yoke 9, a coil 10, a coil 2 11, a coil frame 12, and a movable iron core 14. The stationary iron core 2 8 is fixedly installed inside the bottom end of the yoke 9. The coil 10 is installed above the coil frame 12, and the coil 2 11 is installed below the coil frame 12. The movable iron core 14 is disposed inside the coil 10 and the coil 2 11.

[0022] The stationary iron core 7 is fixedly installed in the middle of the upper cover 6, which is snapped onto the top of the yoke 9. The coil 10 is directly opposite the coil 21. A copper sleeve 21 is fitted inside the coil 10 and the coil 21. The movable iron core 14 is slidably fitted inside the copper sleeve 21. The coil frame 12 is installed inside the yoke 9. A coil magnet 20 is provided on the outside of the joint between the coil 10 and the coil 21. A coil terminal 13 is provided at the bottom of the coil frame 12. The coil terminal 13 connects the coil 10 and the coil 21. The top of the movable iron core 14 is internally threaded and fixedly connected to the push rod body 15. The push rod body 15 slides through the interior of the stationary iron core 7. The interior of the insulating base 4 is close to One end of the movable terminal 17 is provided with a fixed terminal 1, and the other end of the insulating base 4 near the movable terminal 17 is provided with a fixed terminal 3. The top of both the fixed terminal 1 and the fixed terminal 3 is provided with a fixed contact 2, which is directly opposite the movable contact 18. One end of the fixed terminal 1 and the fixed terminal 2 is connected to a connecting terminal 23 inside the insulating base 4. The bottom of the insulating base 4 is provided with a low-voltage connection port 25, which is connected to the connecting terminal 23. Arc-extinguishing magnets 24 are provided inside the insulating base 4 on one side of the fixed terminal 1 and the fixed terminal 2. A shell 22 is connected to one side of the insulating base 4.

[0023] In summary, when this utility model is used, one coil (11) controls the engagement of the relay, while the other coil (10) controls the disengagement. When the relay is disconnected, the electromagnetic force generated by the disconnecting coil is converted and stored in the compression spring (5). When the relay is closed, the force generated by the compression spring (5) and the electromagnetic force generated by the engaging coil (11) act in the same direction on the movable terminal (17), increasing the initial force (or speed) when the relay closes, thereby effectively shortening the relay's closing time.

[0024] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0025] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A push rod assembly adapted to be installed in a relay, characterized in that, Include: Push rod assembly, the push rod assembly includes movable terminal (17), and the compression spring (5) installed on both sides of the upper end of movable terminal (17), the movable terminal (17) is clamped in the inside of push card (16), the inside of push card (16) and movable terminal (17) between limit clamping pressure spring (19), the bottom of both ends of movable terminal (17) is provided with movable contact (18), the inside of the bottom of push card (16) is fixedly connected with push rod main body (15) with screw thread; And the insulating base (4) of adaptive installation push rod assembly, the inside of the insulating base (4) is provided with magnetic control drive mechanism below push rod assembly, the top end of push card (16) is slidably clamped in the inside of insulating base (4), the top end of compression spring (5) is clamped in the inner wall top side of insulating base (4); The magnetic control drive mechanism includes static core one (7), static core two (8), yoke iron (9), coil one (10), coil two (11), coil holder (12), movable iron core (14), the static core two (8) is fixedly installed in the inside of yoke iron (9) bottom end, the coil one (10) is installed above coil holder (12), the coil two (11) is installed below coil holder (12), the movable iron core (14) is arranged in the inside of coil one (10) and coil two (11).

2. A push rod assembly adapted to be mounted to a relay according to claim 1, wherein The static core one (7) is fixedly installed in the middle part of upper cover (6), the upper cover (6) is clamped in the top end of yoke iron (9), the coil one (10) is opposite to coil two (11), the inside of coil one (10) and coil two (11) is sleeved with copper sleeve (21), the inside of copper sleeve (21) is slidably sleeved with movable iron core (14).

3. A push rod assembly adapted to be mounted to a relay according to claim 1, wherein The coil holder (12) is installed in the inside of yoke iron (9), the outside of the butt joint of coil one (10) and coil two (11) is provided with coil magnet (20), the bottom of coil holder (12) is provided with coil terminal (13), the coil terminal (13) is connected with coil one (10) and coil two (11).

4. A push rod assembly adapted to be mounted to a relay according to claim 1, wherein The top end of movable iron core (14) is fixedly connected with push rod main body (15) with screw thread, the push rod main body (15) is slidably penetrated into the inside of static core one (7).

5. A push rod assembly adapted to be mounted to a relay according to claim 1, wherein, The inside of insulating base (4) is provided with fixed terminal one (1) near one end of movable terminal (17), the inside of insulating base (4) is provided with fixed terminal two (3) near the other end of movable terminal (17), the top end of fixed terminal one (1) and fixed terminal two (3) is provided with fixed contact (2), the fixed contact (2) is opposite to movable contact (18), the one end of fixed terminal one (1) and fixed terminal two (3) in the inside of insulating base (4) is connected with connecting terminal (23).

6. A push rod assembly adapted to be mounted to a relay according to claim 1, wherein The bottom end of insulating base (4) is provided with low-voltage connection port (25), the low-voltage connection port (25) is connected with connecting terminal (23), the inside of insulating base (4) is provided with arc extinguishing magnet (24) on one side of fixed terminal one (1) and fixed terminal two (3), one side of insulating base (4) is connected with shell (22).

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