Reed and relay

Abstract

The utility model provides a reed and a relay, the reed comprises a plate and a conductive layer, a contact is formed on the plate through stamping, and the conductive layer is arranged on the surface of the contact. Thus, the contact is formed on the plate through stamping, the conductive layer is arranged on the surface of the contact, the conductivity of the contact is good, the processes of hinging, spot welding and the like during reed manufacturing in the prior art are omitted, the efficiency is improved, the relay applies the reed, the production efficiency can be improved, and good conductivity of the relay can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a reed and a relay. Background Art

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity (excitation quantity) reaches the specified requirement.

[0003] A relay is generally composed of an iron core, a coil, a yoke, an armature, reeds (moving reed and static reed) and contacts. The coil is wound around the iron core, and the yoke is connected to the iron core to enhance the attraction of the coil. The armature is set on one side of the yoke. After the control system and the coil are electrically conductive, the armature is attracted by the energized coil and moves, and forms a closed magnetic circuit with the yoke, the iron core and the coil. At the same time, the moving reed will move toward the static reed under the drive of the armature, and the contacts on the moving reed will contact the contacts on the static reed. The circuit between the moving reed and the static reed is conductive, and the moving reed and the static reed can be electrically conductive with the controlled system, thereby causing the controlled system to operate. In fact, a relay is an "automatic switch" that uses a small current to control the operation of a large current, and plays the role of automatic adjustment, safety protection and circuit conversion in the circuit.

[0004] Currently, in the process of producing relays, silver alloy needs to be made into contacts first, and then the contacts and reeds need to be combined through flat riveting, cone riveting, spot welding, etc. There are many production processes and many control requirements. The increase in control points also means that the uncertainty or risk during use is increasing simultaneously, which will also affect the production efficiency of the relay. In addition, gaps are likely to exist between the reed and the contact, resulting in reduced conductivity of the reed. Utility Model Content

[0005] In order to overcome at least one of the defects of the above-mentioned prior art, the present invention provides a reed and a relay, in which contacts are formed by stamping on a plate, and a conductive layer is provided on the surface of the contact. The contact has good conductivity and eliminates the hinging, spot welding and other processes used in the prior art in making the reed, thereby improving efficiency. The relay uses this reed to improve production efficiency and ensure good conductivity of the relay.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] In a first aspect, a spring is provided, comprising a plate and a conductive layer. Contacts are punched on the plate, and the conductive layer is disposed on surfaces of the contacts.

[0008] Furthermore, the conductive property of the conductive layer is better than that of the plate.

[0009] Furthermore, the material of the plate is copper or a copper alloy, and the material of the conductive layer is silver or a silver alloy.

[0010] Furthermore, the conductive layer is compounded on the plate at high temperature.

[0011] Furthermore, the thickness of the conductive layer is between 0.01 mm and 1 mm.

[0012] Furthermore, the plate has a first region, and protrusions are punched in the first region to form the contacts.

[0013] Furthermore, the plate forms a supporting portion of the spring, and the contact has a transition portion, an extension portion, and a contact portion, wherein the transition portion is connected to the supporting portion, the extension portion is connected to the transition portion, and the contact portion is connected to the extension portion.

[0014] Furthermore, the contact point is formed by punching and bending the end of the plate along the extension direction of one end of the plate.

[0015] In a second aspect, a relay is provided, comprising one or two reeds as described in the first aspect.

[0016] Furthermore, the relay further includes a base and two reeds, both of which are inserted into the base, and the two reeds are respectively configured as a moving reed and a static reed.

[0017] The utility model provides a reed and a relay, which have the following beneficial effects compared with the prior art:

[0018] Contacts are formed by stamping on a plate, and a conductive layer is provided on the surface of the contacts. The contacts have good conductivity. In addition, when making the reed, the hinge and spot welding processes in the prior art are eliminated, thereby improving efficiency.

[0019] The relay uses the reed, which can improve production efficiency and ensure good electrical conductivity of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the reed according to Example 1 of the present utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of the reed in Example 1 of the present utility model;

[0022] Figure 3 for Figure 2 AA cross-sectional diagram;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the reed in Example 2 of the present utility model.

[0024] The meanings of the reference numerals are as follows:

[0025] 100. Spring; 1. Plate; 2. Conductive layer; 11. Contact; 111. Transition portion; 112. Extension portion; 113. Contact portion; 12. First region; 13. Support portion; 14. Connecting groove; 15. Insertion portion; 16. Electrode end. DETAILED DESCRIPTION

[0026] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] Example 1

[0030] like Figure 1-Figure 3 As shown in FIG, an embodiment of the present invention provides a reed 100 in a first aspect. The reed 100 includes a plate 1 and a conductive layer 2. The plate 1 has a contact 11 stamped thereon, and the conductive layer 2 is disposed on the surface of the contact 11. The conductive layer 2 is laminated to the plate 1 at high temperature, making the conductive layer 2 relatively strong and preventing any gap from forming between the conductive layer 2 and the plate 1.

[0031] The production process of the reed 100 can be carried out in two ways:

[0032] (1) First, the conductive layer 2 is laminated on the plate 1 at high temperature, and then the plate 1 and the conductive layer 2 are simultaneously punched to form the contact 11;

[0033] (2) First, the plate 1 is punched to form the contact 11 , and then the conductive layer 2 is composited onto the plate 1 at high temperature, specifically, the conductive layer 2 is composited onto the contact 11 .

[0034] Thus, through the above scheme, the contact 11 is stamped on the plate 1, and the conductive layer 2 is provided on the surface of the contact 11. The contact 11 has good conductivity. In addition, when the reed is manufactured, the hinge and spot welding processes in the prior art are eliminated, thereby improving efficiency.

[0035] Preferably, the thickness of the conductive layer 2 is between 0.01 mm and 1 mm. In this way, when the conductivity of the contact 11 is enhanced, the conductive layer 2 is less worn and has a long service life during long-term use; wherein, the thickness of the plate 1 is greater than or equal to the thickness of the conductive layer 2.

[0036] In this embodiment, the plate 1 has a first region 12 , and a protrusion is punched in the first region 12 to form the contact 11 . It can be understood that the contact 11 is punched and formed in the center of the first region 12 .

[0037] See Figure 2 and Figure 3 Based on the above-mentioned forming method of the contact 11, after stamping, the plate 1 forms the support portion 13 of the spring, and the contact 11 has a transition portion 111, an extension portion 112 and a contact portion 113. The transition portion 111 is connected to the support portion 13, the extension portion 112 is connected to the transition portion 111, and the contact portion 113 is connected to the extension portion 112.

[0038] Furthermore, in order to optimize the structure and save materials, the ratio of the outer diameters of the transition portion 111, the extension portion 112 and the contact portion 113 is 4:3:(1-1.5). Figure 2 Among them, a:b:c is 4:3:(1-1.5), and the ratio of the outer diameter a of the transition portion 111 to the width d of the support portion 13 at the transition portion 111 is 4:(5-5.5).

[0039] The transition portion 111 is connected to the end of the support portion 13 , and two connection slots 14 for connection and positioning are provided in the middle of the support portion 13 . The two connection slots 14 are distributed on two opposite sides of the transition portion 111 .

[0040] Of course, the contact 11 may also be in other shapes such as rectangle, square, or oval.

[0041] The plate 1 also forms a plug-in portion 15 , which has an electrode end 16 . The plug-in portion 15 is connected to an end of the support portion 13 away from the transition portion 111 .

[0042] The conductive performance of the conductive layer 2 is better than that of the plate 1 .

[0043] In some embodiments, the plate 1 is made of copper or a copper alloy, and the conductive layer 2 is made of silver or a silver alloy.

[0044] It should be noted that the reed 100 can be used as a dynamic reed or a static reed, and the specific use of the reed 100 is not limited here. According to different usage scenarios, some structures of the reed 100 can be adaptively changed, for example, the connecting groove 14 can be eliminated, or the thickness of the plug-in portion 15 can be thickened.

[0045] In a second aspect, an embodiment of the present invention further provides a relay, which includes one or two reeds 100 as in the first aspect.

[0046] For ease of understanding, a relay scheme that can be specifically implemented is described below: the relay also includes a base, two reeds 100, an iron core, a coil, a yoke, and an armature. The two reeds 100 are inserted into the base and are configured as a moving reed and a stationary reed, respectively. The yoke is disposed outside the coil, and the armature is movably connected to the yoke. The moving reed and the stationary reed are disposed opposite each other and located on the same side of the yoke, with one end of the armature movably contacting the moving reed. When current is passed through the coil, a magnetic field is generated. Under the action of the magnetic field, the armature moves relative to the yoke, thereby forming a strong magnetic attraction structure with the iron core, coil, yoke, and armature. The movement of the armature drives the moving reed, causing the contact 11 on the moving reed to approach the contact 11 on the stationary reed, and the two eventually contact each other, thereby establishing a circuit between the moving and stationary reeds. This also connects the circuit within the controlled system electrically connected to the moving and stationary reeds, allowing operation.

[0047] It is understandable that the reed 100 of the present invention can also be applied to other types of relays or electrical components.

[0048] Example 2

[0049] See Figure 4 This embodiment also discloses a reed 100 . The difference between the reed 100 of this embodiment and the reed 100 of Example 1 lies in the different forming methods of the contacts 11 .

[0050] Different from the contact 1 in the embodiment 1 which is centrally stamped, in this embodiment, the contact 11 is stamped and bent. Specifically, the contact 11 is formed by stamping and bending at the end of the plate 1 along the extension direction of one end.

[0051] At this time, since the surface area of ​​the contact 11 that can be used for contact is relatively large, it is preferred that the conductive layer 2 only occupies the central part of the surface area of ​​the contact 11 .

[0052] It should be noted that the reed 100 of this embodiment can also solve the same technical problems and achieve the same technical effects as those of Example 1. Furthermore, the production process of the reed 100 of this embodiment can also be carried out in the two methods described in Example 1. Therefore, these common descriptions will not be repeated.

[0053] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A reed, characterized in that: The invention comprises a plate and a conductive layer. Contacts are punched on the plate, and the conductive layer is arranged on the surface of the contact points.

2. The reed according to claim 1, characterized in that The conductive layer has a better conductive property than the plate.

3. The reed according to claim 2, characterized in that The plate is made of copper or a copper alloy, and the conductive layer is made of silver or a silver alloy.

4. The reed according to claim 1, characterized in that The conductive layer is compounded on the plate through high temperature.

5. The reed according to claim 1, characterized in that The thickness of the conductive layer is between 0.01 mm and 1 mm.

6. The reed according to any one of claims 1 to 5, characterized in that The sheet metal has a first region in which projections are punched to form the contacts.

7. The reed according to claim 6, characterized in that The plate forms a supporting portion of the reed. The contact comprises a transition portion, an extension portion, and a contact portion. The transition portion is connected to the supporting portion, the extension portion is connected to the transition portion, and the contact portion is connected to the extension portion.

8. The reed according to any one of claims 1 to 5, characterized in that The contact point is formed by punching and bending the end portion of the plate along the extension direction of one end of the plate.

9. A relay, characterized in that: The invention comprises one or two reeds according to any one of claims 1 to 8.

10. The relay according to claim 9, characterized in that The relay further comprises a base and two reeds, both of which are inserted into the base, and the two reeds are respectively configured as a moving reed and a static reed.

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