Magnetic reed relay

Abstract

The utility model relates to the technical field of magnetic reed relays, and discloses a magnetic reed relay which comprises a magnetic reed relay shell, two ends of the magnetic reed relay shell are fixedly connected with a plurality of fixing feet, a shielding sheet is installed inside the magnetic reed relay shell, and the fixing feet are fixedly connected with the shielding sheet. The bottom of the shielding sheet is connected with the top of the bottom end of an inner cavity of the magnetic reed relay shell in a gluing mode through sealant, a plurality of bonding pads are installed at the bottom of the magnetic reed relay shell, a plurality of pins are installed at the bottom of the magnetic reed relay shell, and the number of the pins is larger than that of the bonding pads. And barrier strips are mounted on two sides of the magnetic reed relay shell. According to the magnetic reed relay, the shielding sheet is placed in the shell of the magnetic reed relay, the influence of an external magnetic field is counteracted by generating a reverse magnetic field, the influence of the external magnetic field is avoided, contact malfunction caused by the influence of the external magnetic field is avoided, and the stability and applicability of a product are improved.

Description

Technical Field

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

[0002] A reed relay is a special relay. Its contact part is composed of dry reed blades, usually made of iron-nickel alloy, and is sealed in a glass tube filled with inert gas. This design makes the contacts of the reed relay free from the pollution of dust, moisture and harmful gases, thus improving its working reliability and contact life.

[0003] In the existing related technologies, the inventor believes that there are often the following defects: in the existing reed relay, due to its own inertia, the pins may be deformed or even detached from the pads. The relay is easily affected by the external magnetic field, resulting in misoperation of the contacts. At the same time, due to the relatively large product volume and single weight of the reed relay, when subjected to external impact or vibration, due to its own inertia, the pins may be deformed or even detached from the pads, which will affect the performance and reliability of the relay. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: in the prior art, in the existing reed relay, due to its own inertia, the pins may be deformed or even detached from the pads. The relay is easily affected by the external magnetic field, resulting in misoperation of the contacts. For this reason, we propose a reed relay.

[0005] In order to achieve the above object, the present application adopts the following technical solution: a reed relay, including a reed relay housing, both ends of the reed relay housing are fixedly connected with a plurality of fixed feet, and a shielding sheet is installed inside the reed relay housing.

[0006] Preferably, the bottom of the shielding sheet is adhesively connected to the top of the bottom end of the inner cavity of the reed relay housing by a sealing adhesive.

[0007] Preferably, the bottom of the reed relay housing is provided with pads, and the number of the pads is multiple.

[0008] Preferably, the bottom of the reed relay housing is provided with pins, and the number of the pins is multiple.

[0009] Preferably, barrier strips are installed on both sides of the reed relay housing.

[0010] Preferably, the bottom of the fixed foot is provided with a bending notch.

[0011] The technical effects and advantages of the utility model:

[0012] In the present utility model, by placing the shielding sheet inside the magnetic reed relay housing, the purpose of magnetic shielding is achieved, avoiding being affected by external magnetic fields, resulting in misoperation of the contacts, improving the stability and applicability of the product. At the same time, a solderable pad structure is provided on the bottom surface of the product, and it is fixed to the substrate by soldering or other connection methods. A cylindrical boss formed by integral injection molding is provided on the bottom surface of the magnetic reed relay housing, and it is fixed by inserting into the opening on the connected substrate. Through the above fixing methods, the impact resistance of the product after being actually mounted on the substrate is greatly improved, and during actual use, due to external impact force, the deformation of the product pins, the detachment of the pins from the pads, or the damage of the internal connection caused by the pin deformation are reduced. Brief Description of the Drawings

[0013] Figure 1 is the front view structural schematic diagram of the present utility model;

[0014] Figure 2 is the internal structure cross-sectional view of the present utility model;

[0015] Figure 3 is the bottom structure schematic diagram of the present utility model;

[0016] Figure 4 is the enlarged view of part A of the present utility model 1.

[0017] Legend: 1. Magnetic reed relay housing; 2. Groove; 3. Shielding sheet; 8. Pad; 9. Partition bar; 10. Bending opening; 11. Pin; 12. Fixed foot. Detailed Description of the Preferred Embodiment

[0018] Now, the present utility model will be further described in detail with reference to the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0019] Refer to Figure 1 and Figure 2 As shown, the present utility model provides a technical solution: a magnetic reed relay, including a magnetic reed relay housing 1, a plurality of fixed feet 12 are fixedly connected to both ends of the magnetic reed relay housing 1, and a shielding sheet 3 is installed inside the magnetic reed relay housing 1. By placing the shielding sheet 3 inside the magnetic reed relay housing 1, the purpose of magnetic shielding is achieved, avoiding being affected by external magnetic fields, resulting in misoperation of the contacts, and improving the stability and applicability of the product.

[0020] Refer to Figure 3As shown in the figure, in this embodiment: pads 8 are installed at the bottom of the reed relay housing 1, and the number of pads 8 is multiple. By adding several pads 8 below the reed relay housing 1, the pads 8 are welded together when welding the circuit board, thereby improving the mechanical strength and enhancing the anti-vibration and anti-impact performance.

[0021] Referring to Figure 3 As shown in the figure, in this embodiment: pins 11 are installed at the bottom of the reed relay housing 1, and the number of pins 11 is multiple. On the original basis, multiple pins 11 are added, and the multiple pins 11 are arranged directly below the product. Therefore, when welding to the circuit board, the mechanical strength is increased, thereby improving the anti-vibration and anti-impact performance.

[0022] Referring to Figure 3 As shown in the figure, in this embodiment: barrier strips 9 are installed on both sides of the reed relay housing 1. By adding barrier strips 9 on both sides of the reed relay housing 1, the creepage distance between the high-voltage and low-voltage side terminals of the product can be significantly increased, and it is also convenient to position the product when clamping.

[0023] Referring to Figure 4 As shown in the figure, in this embodiment: a bending notch 10 is provided at the bottom of the fixing leg 12. The design of the bending notch 10 can increase the contact area between the fixing leg 12 and the circuit board during welding, thereby improving the stability. At the same time, the bending notch 10 can absorb and reduce vibrations through its flexible design, thereby improving the performance and reliability of the device.

[0024] Working principle: By placing the shielding sheet 3 inside the reed relay housing 1, the purpose of magnetic shielding is achieved, avoiding being affected by external magnetic fields and causing misoperation of the contacts, improving the stability and applicability of the product. By adding several pads 8 below the reed relay housing 1, the pads 8 are welded together when welding the circuit board, thereby improving the mechanical strength and enhancing the anti-vibration and anti-impact performance. On the original basis, multiple pins 11 are added, and the multiple pins 11 are arranged directly below the product. Therefore, when welding to the circuit board, the mechanical strength is increased, thereby improving the anti-vibration and anti-impact performance. By adding barrier strips 9 on both sides of the reed relay housing 1, the creepage distance between the high-voltage and low-voltage side terminals of the product can be significantly increased, and it is also convenient to position the product when clamping. The design of the bending notch 10 can increase the contact area between the fixing leg 12 and the circuit board during welding, thereby improving the stability. At the same time, the bending notch 10 can absorb and reduce vibrations through its flexible design, thereby improving the performance and reliability of the device.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reed relay, comprising a reed relay housing (1), characterized in that: A plurality of fixing feet (12) are fixedly connected to both ends of the reed relay housing (1), and a shielding sheet (3) is installed inside the reed relay housing (1).

2. A reed relay according to claim 1, characterized in that: The bottom of the shielding sheet (3) is glued to the top of the bottom end of the inner cavity of the reed relay housing (1) using a sealant.

3. A reed relay according to claim 1, characterized in that: A soldering pad (8) is installed at the bottom of the reed relay housing (1), and the number of the soldering pads (8) is multiple.

4. A reed relay according to claim 1, characterized in that: Pins (11) are installed at the bottom of the reed relay housing (1), and the number of the pins (11) is four.

5. A reed relay according to claim 1, characterized in that: Barrier bars (9) are installed on both sides of the reed relay housing (1).

6. A reed relay according to claim 1, characterized in that: The bottom of the fixed foot (12) is provided with a bending opening (10).

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