Small-sized large-opening-distance relay

Abstract

The utility model provides a small-sized large-distance relay, which comprises a yoke fixed on a shell; and the movable contact spring is provided with a first contact spring fixed with the yoke and a pin part which is integrally connected with the first contact spring and extends out of the shell, and the first contact spring is formed by overlapping a plurality of connecting sheets which are integrally bent and connected. Compared with the prior art, the contact resistance can be reduced, the temperature rise can be reduced, in addition, the first reed is formed by overlapping a plurality of connecting sheets which are integrally bent and connected, so that the over-current area is increased, and the heat dissipation effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a small-sized large-opening-distance relay. Background Art

[0002] A relay is an electronic control component that plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit. It is widely used in power protection, automation, measurement, communication and other fields.

[0003] like Figure 5 As shown, the existing relay includes a housing 01, a yoke 02, a movable spring 03 and an armature 04, the movable spring 03 has a first connecting piece 05 connected to the yoke 02, and a second connecting piece 06 connected to the armature 04, the first connecting piece 05 is fixed to the yoke 02 by riveting, and the yoke 02 has a pin 07 extending out of the housing 01, so that an external power supply needs to pass through the pin 07 of the yoke 02 to supply power to the movable spring 03, the contact resistance is large, and the temperature rises. Utility Model Content

[0004] To this end, the utility model provides a small large-opening distance relay, including: a yoke fixed on a housing; a movable reed, having a first reed fixed to the yoke, and a pin portion integrally connected to the first reed and extending out of the housing, wherein the first reed is formed by overlapping a plurality of integrally bent and connected connecting pieces.

[0005] An armature is movably mounted on the housing, and the movable spring has a second spring connected to the armature.

[0006] The armature is movably mounted on the top of the yoke and is provided with a limit block which abuts against the top of the yoke during disconnection to prevent excessive deformation of the movable spring.

[0007] The movable spring piece further comprises a spring piece portion which is arranged between the first spring piece and the second spring piece and has a V-shaped structure, and a window is formed in the middle of the spring piece portion.

[0008] The width of the window is 2 mm ± 0.2.

[0009] The shell has a frame suitable for installing the coil, a first partition is arranged between the coil and the yoke, and a second partition is arranged between the coil and the armature.

[0010] A slot is formed on one side of the second partition plate adjacent to the first partition plate, and an insert block adapted to be inserted into the slot is formed on the first partition plate.

[0011] The technical solution of this utility model has the following advantages:

[0012] 1. The small-sized large-opening distance relay provided by the utility model has a moving reed having a first reed fixed to a yoke iron, and a pin portion integrally connected to the first reed and extending out of a housing, which can reduce contact resistance and lower temperature rise. In addition, the first reed is formed by overlapping a plurality of integrally bent connecting sheets, thereby increasing a flow area and achieving a better heat dissipation effect.

[0013] 2. The small-sized large-opening distance relay provided by the utility model has an armature movably mounted on the top of the yoke and is provided with a limit block which abuts against the top of the yoke during disconnection to prevent excessive deformation of the moving spring, thereby avoiding the situation in which the moving spring cannot be reset due to excessive deformation and extending the service life.

[0014] 3. The small-sized large-opening relay provided by the utility model has a shell with a frame suitable for installing a coil, a first partition is provided between the coil and the yoke, and a second partition is provided between the coil and the armature, thereby increasing the electrical gap between the armature and the coil, and having higher safety performance. Furthermore, a slot is formed on one side of the second partition adjacent to the first partition, and a plug-in block is formed on the first partition that is adapted to be plugged into the slot, thereby further increasing the creepage distance between the armature and the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional diagram of a small-sized large-opening distance relay of the utility model;

[0017] Figure 2 It is a side view of a small large-opening-distance relay;

[0018] Figure 3 It is a three-dimensional picture of the moving reed;

[0019] Figure 4 is a side view of the moving reed;

[0020] Figure 5 It is a stereogram of a relay in the prior art.

[0021] Description of reference numerals: 01, housing; 02, yoke; 03, movable spring; 04, armature; 05, first connecting piece; 06, second connecting piece; 07, pin;

[0022] 1. Yoke; 2. Shell; 3. First spring; 4. Pin portion; 5. Connecting piece; 6. Armature; 7. Second spring; 8. Limit block; 9. Shrapnel portion; 10. Window; 11. First partition; 12. Second partition; 13. Coil; 14. Slot; 15. Insert block; 16. Moving spring. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Example

[0028] This embodiment provides a small-sized large-opening distance relay, such as Figure 1 As shown, it includes a housing 2, a yoke 1, a movable spring 16 and an armature 6.

[0029] The housing 2 is fixed with a yoke 1 and an armature 6 movable relative to the housing 2. Figure 1 and Figure 2As shown, the armature 6 is movably mounted on the top of the yoke 1, and is provided with a stopper 8 which abuts against the top of the yoke 1 when disconnected to prevent excessive deformation of the movable spring 16. The housing 2 has a frame suitable for mounting a coil 13, a first partition 11 is provided between the coil 13 and the yoke 1, a second partition 12 is provided between the coil 13 and the armature 6, a slot 14 is formed on one side of the second partition 12 adjacent to the first partition 11, and a plug 15 is formed on the first partition 11 to be plugged in with the slot 14.

[0030] Moving reed 16, such as Figure 3 and Figure 4 As shown, it has a first spring piece 3 fixed to the yoke 1, a second spring piece 7 connected to the armature 6, and a spring piece portion 9 arranged between the first spring piece 3 and the second spring piece 7 and having a V-shaped structure. The first spring piece 3 has a pin portion 4 integrally connected thereto and extending out of the housing 2. The first spring piece 3 is formed by stacking a plurality of integrally bent connecting pieces 5. A window 10 is formed in the middle of the spring piece portion 9. In this embodiment, the width of the window 10 is 2 mm ± 0.2.

[0031] The utility model provides a small-sized large-opening distance relay, wherein the movable spring 16 comprises a first spring 3 fixed to the yoke 1, and a pin portion 4 integrally connected to the first spring 3 and extending out of the housing 2, so that the contact resistance can be reduced and the temperature rise can be lowered. In addition, the first spring is formed by overlapping a plurality of integrally bent and connected connecting sheets, thereby increasing the flow area and achieving a better heat dissipation effect.

[0032] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A small-sized large-opening distance relay, characterized in that: include: A yoke (1) fixed on the housing (2); The movable spring (16) comprises a first spring (3) fixed to the yoke (1), and a pin portion (4) integrally connected to the first spring (3) and extending out of the housing (2); the first spring (3) is formed by stacking a plurality of integrally bent connecting pieces (5).

2. The small-sized large-opening distance relay according to claim 1, characterized in that: An armature (6) is movably mounted on the housing (2), and the movable spring (16) has a second spring (7) connected to the armature (6).

3. The small-sized large-opening distance relay according to claim 2, characterized in that: The armature (6) is movably mounted on the top of the yoke (1), and is provided with a limit block (8) which abuts against the top of the yoke (1) during disconnection to prevent excessive deformation of the movable spring sheet (16).

4. The small-sized large-opening distance relay according to claim 2 or 3, characterized in that: The movable spring (16) further comprises a spring portion (9) in a V-shaped structure and arranged between the first spring (3) and the second spring (7), wherein a window (10) is formed in the middle of the spring portion (9).

5. The small-sized large-opening distance relay according to claim 4, characterized in that: The width of the window (10) is 2 mm±0.

2.

6. The small-sized large-opening distance relay according to claim 2, characterized in that: The housing (2) has a frame suitable for mounting a coil (13); a first partition (11) is provided between the coil (13) and the yoke (1); and a second partition (12) is provided between the coil (13) and the armature (6).

7. The small-sized large-opening distance relay according to claim 6, characterized in that: A slot (14) is formed on one side of the second partition (12) adjacent to the first partition (11), and an insert block (15) adapted to be inserted into the slot (14) is formed on the first partition (11).

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