Reed switch normally-closed relay with permanent magnet

Abstract

The utility model relates to a reed switch normally-closed relay with a permanent magnet. The reed switch normally-closed relay comprises a reed switch, a framework, a load terminal, an enameled wire, a winding pin and a coil terminal, a permanent magnet is also included; the reed switch and the permanent magnet are both mounted on the framework; the permanent magnets are close to the reed switch, or the permanent magnets are arranged at the two ends or the periphery of the reed switch to provide a constant magnetic field; the reed switch is connected with one end of the load terminal and controls on-off of a load circuit. The other end of the load terminal is connected with an external load circuit; the enameled wire is wound on the coil framework, a magnetic field is generated when the enameled wire is electrified, the two ends of the enameled wire are connected with the winding pins, and the winding pins fix pins of the enameled wire; the winding pin is connected with the enameled wire and one end of the coil terminal; the other end of the coil terminal is connected with an external control circuit and generates a magnetic field when electrified. Compared with the prior art, the utility model has the advantages of effectively and stably realizing the long-term closing function of the reed switch relay reed, long service life, low energy consumption and the like.

Description

Technical Field

[0001] This utility model relates to the field of reed relay technology, and in particular to a normally closed reed relay with a permanent magnet. Background Technology

[0002] A reed relay is an electrical component that uses low-voltage circuitry to control high-voltage circuitry. When a specific driving voltage is applied to the reed relay coil, it generates a fixed magnetic field. This magnetic field magnetizes the two reed contacts inside the reed switch, causing them to close and conduct, thus switching the load circuit on and off. Reed relays are widely used in automatic control, high-voltage detection, leakage current detection, remote control, protection circuits, and new energy fields. Compared to the limitations of traditional electromagnetic relays, such as large size, slow operation, and short mechanical and electrical lifespan, reed relays have inherent advantages in size, sensitivity, and mechanical and electrical lifespan, making them more suitable for the technological requirements of modern electronics.

[0003] Ordinary reed relays are typically normally open, which cannot ensure the reed's effective closure for extended periods. Even with a very low coil power consumption design, prolonged use with the coil energized will significantly reduce the coil's lifespan and lead to excessive cumulative energy consumption, hindering energy conservation and emission reduction. Our normally closed reed relay with a permanent magnet is a newly designed product addressing these market demands. This type of reed relay adds a permanent magnet to the normally open reed relay, effectively and stably achieving the long-term closure of the reed's reed, while also effectively solving the problems of low lifespan and high cumulative energy consumption during normally closed operation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, such as the inability of reed relays to achieve the normally closed function of the reed for a long time and stably, the short service life of the relay during the normally closed process, and the high cumulative energy consumption. This invention provides a normally closed reed relay with a permanent magnet, which can effectively and stably achieve the long-term closed function of the reed relay, with a long service life and low energy consumption.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] This utility model is a completely new design based on the above market demands. This type of reed relay adds a permanent magnet design to the normally open reed relay, which effectively and stably realizes the long-term closed function of the reed relay, and also effectively solves the problems of low service life and high cumulative energy consumption of the relay during the normally closed process.

[0007] This utility model provides a normally closed reed relay with a permanent magnet, comprising: a reed switch, a frame, a load terminal, an enameled wire, a winding pin, and a coil terminal; and also includes a permanent magnet.

[0008] Both the reed switch and the permanent magnet are mounted on the frame; the permanent magnet is close to the reed switch, or the permanent magnet is located at both ends or around the reed switch to provide a constant magnetic field;

[0009] The reed switch is connected to one end of the load terminal to control the on / off state of the load circuit; the other end of the load terminal is connected to an external load circuit; the enameled wire is wound on the coil frame and generates a magnetic field when energized; the two ends of the enameled wire are connected to winding pins, which fix the pins of the enameled wire; the winding pins connect the enameled wire and one end of the coil terminal; the other end of the coil terminal is connected to an external control circuit and generates a magnetic field when energized.

[0010] Furthermore, the reed switch includes a glass tube and two magnetic reeds sealed in the glass tube. When an external magnetic field is applied, the reeds contact or separate to switch the circuit on or off.

[0011] Furthermore, when the permanent magnet is near the reed switch, the permanent magnet is a cylindrical magnetic material.

[0012] Furthermore, when the permanent magnet is disposed at both ends or around the reed switch, the permanent magnet is a ring-shaped magnetic material.

[0013] Furthermore, the permanent magnet is a ferrite permanent magnet.

[0014] Furthermore, the permanent magnet is a neodymium iron boron permanent magnet.

[0015] Furthermore, the permanent magnet is a samarium cobalt permanent magnet.

[0016] Furthermore, it also includes a magnetic shielding sheet, which is arranged around the reed switch and permanent magnet to prevent external magnetic field interference and improve the stability of the relay.

[0017] Furthermore, the permanent magnet provides a constant magnetic field for controlling the switching state of the reed switch.

[0018] Furthermore, it also includes a package that encapsulates the entire relay, protecting the internal components from mechanical damage and environmental impact.

[0019] Furthermore, the frame supports and secures the various components of the relay.

[0020] Working principle:

[0021] When the coil is not energized, the constant magnetic field provided by the permanent magnet keeps the reed switch in a closed state, and the load circuit is turned on. When the coil is energized, the generated magnetic field interacts with the magnetic field of the permanent magnet, canceling or enhancing the magnetic field, causing the reed switch to separate and the load circuit to be turned off.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] By adding a permanent magnet design to the normally open reed relay, the long-term closed function of the reed relay is effectively and stably achieved. This effectively solves the problems of short service life and high cumulative energy consumption of relays during normally closed operation. It features long lifespan and low energy consumption. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the permanent magnet and reed switch in Example 1;

[0025] Figure 2 This is a schematic diagram of the permanent magnet and reed switch in Example 2;

[0026] Figure 3 This is a schematic diagram of the permanent magnet and reed switch in Example 3;

[0027] Figure 4 This is a schematic diagram of the permanent magnet and reed switch in Example 4;

[0028] Figure 5 This is a schematic diagram of a normally closed reed relay with a permanent magnet (excluding the package) according to Example 1. Figure 1 ;

[0029] Figure 6 This is a schematic diagram of a normally closed reed relay with a permanent magnet (excluding the package) according to Example 1. Figure 2 ;

[0030] Figure 7 This is a schematic diagram of a normally closed reed relay with a permanent magnet (including the package) according to Example 1.

[0031] Reference numerals: 100-Permanent magnet; 110-Reed switch; 120-Frame; 130-Load terminal; 140-Enameled wire; 150-Wire-wound pin; 160-Coil terminal; 170-Magnetic shielding sheet; 180-Encapsulation. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0033] Example 1

[0034] This embodiment provides a normally closed reed relay with a permanent magnet, such as... Figure 1 , 5 As shown in Figures 6 and 7, the device includes: a reed switch 110, a frame 120, a load terminal 130, an enameled wire 140, a winding pin 150, and a coil terminal 160; it also includes a permanent magnet 100.

[0035] The reed switch 110 and the permanent magnet 100 are both mounted on the frame 120; the permanent magnet 100 is close to the reed switch 110 and provides a constant magnetic field;

[0036] The reed switch 110 is connected to one end of the load terminal 130 to control the on / off state of the load circuit; the other end of the load terminal 130 is connected to an external load circuit; the enameled wire 140 is wound on the coil frame and generates a magnetic field when energized; the two ends of the enameled wire 140 are connected to the winding pin 150, which fixes the pins of the enameled wire 140; the winding pin 150 connects the enameled wire 140 and one end of the coil terminal 160; the other end of the coil terminal 160 is connected to an external control circuit and generates a magnetic field when energized.

[0037] In a specific embodiment, the reed switch 110 includes a glass tube and two magnetic reeds sealed in the glass tube. When an external magnetic field is applied, the reeds contact or separate to realize the switching on and off of the circuit.

[0038] In a specific embodiment, the permanent magnet 100 is a cylindrical magnetic material.

[0039] In a specific embodiment, the permanent magnet 100 is a samarium cobalt permanent magnet.

[0040] In a specific embodiment, a magnetic shielding sheet 170 is also included. The magnetic shielding sheet 170 is arranged around the reed switch 110 and the permanent magnet 100 to prevent external magnetic field interference and improve the stability of the relay.

[0041] In a specific embodiment, the permanent magnet 100 provides a constant magnetic field for controlling the switching state of the reed switch.

[0042] In a specific embodiment, it also includes a package 180, which encapsulates the entire relay and protects the internal components from mechanical damage and environmental impact.

[0043] In a specific embodiment, the frame 120 supports and fixes the various components of the relay.

[0044] Working principle:

[0045] When the coil is not energized, the constant magnetic field provided by the permanent magnet 100 keeps the reed of the reed switch 110 closed, and the load circuit is turned on. When the coil is energized, the generated magnetic field interacts with the magnetic field of the permanent magnet 100, canceling or enhancing the magnetic field, causing the reed of the reed switch 110 to separate and the load circuit to be turned off.

[0046] Example 2

[0047] This embodiment provides a normally closed reed relay with a permanent magnet, including: a reed switch 110, a frame 120, a load terminal 130, an enameled wire 140, a winding pin 150, and a coil terminal 160; it also includes a permanent magnet 100.

[0048] The reed switch 110 and the permanent magnet 100 are both mounted on the frame 120; as Figure 2 As shown, a permanent magnet 100 is disposed at one end of the reed switch 110 to provide a constant magnetic field;

[0049] The reed switch 110 is connected to one end of the load terminal 130 to control the on / off state of the load circuit; the other end of the load terminal 130 is connected to an external load circuit; the enameled wire 140 is wound on the coil frame and generates a magnetic field when energized; the two ends of the enameled wire 140 are connected to the winding pin 150, which fixes the pins of the enameled wire 140; the winding pin 150 connects the enameled wire 140 and one end of the coil terminal 160; the other end of the coil terminal 160 is connected to an external control circuit and generates a magnetic field when energized.

[0050] In a specific embodiment, the reed switch 110 includes a glass tube and two magnetic reeds sealed in the glass tube. When an external magnetic field is applied, the reeds contact or separate to realize the switching on and off of the circuit.

[0051] In a specific embodiment, the permanent magnet 100 is a ring-shaped magnetic material.

[0052] In a specific embodiment, the permanent magnet 100 is a ferrite permanent magnet.

[0053] In a specific embodiment, a magnetic shielding sheet 170 is also included. The magnetic shielding sheet 170 is arranged around the reed switch 110 and the permanent magnet 100 to prevent external magnetic field interference and improve the stability of the relay.

[0054] In a specific embodiment, the permanent magnet 100 provides a constant magnetic field for controlling the switching state of the reed switch.

[0055] In a specific embodiment, it also includes a package 180, which encapsulates the entire relay and protects the internal components from mechanical damage and environmental impact.

[0056] In a specific embodiment, the frame 120 supports and fixes the various components of the relay.

[0057] Working principle:

[0058] When the coil is not energized, the constant magnetic field provided by the permanent magnet 100 keeps the reed of the reed switch 110 closed, and the load circuit is turned on. When the coil is energized, the generated magnetic field interacts with the magnetic field of the permanent magnet 100, canceling or enhancing the magnetic field, causing the reed of the reed switch 110 to separate and the load circuit to be turned off.

[0059] Example 3

[0060] This embodiment provides a normally closed reed relay with a permanent magnet, including: a reed switch 110, a frame 120, a load terminal 130, an enameled wire 140, a winding pin 150, and a coil terminal 160; it also includes a permanent magnet 100.

[0061] The reed switch 110 and the permanent magnet 100 are both mounted on the frame 120; as Figure 3 As shown, the permanent magnet 100 is disposed at both ends of the reed switch 110 to provide a constant magnetic field;

[0062] The reed switch 110 is connected to one end of the load terminal 130 to control the on / off state of the load circuit; the other end of the load terminal 130 is connected to an external load circuit; the enameled wire 140 is wound on the coil frame and generates a magnetic field when energized; the two ends of the enameled wire 140 are connected to the winding pin 150, which fixes the pins of the enameled wire 140; the winding pin 150 connects the enameled wire 140 and one end of the coil terminal 160; the other end of the coil terminal 160 is connected to an external control circuit and generates a magnetic field when energized.

[0063] In a specific embodiment, the reed switch 110 includes a glass tube and two magnetic reeds sealed in the glass tube. When an external magnetic field is applied, the reeds contact or separate to realize the switching on and off of the circuit.

[0064] In a specific embodiment, the permanent magnet 100 is a ring-shaped magnetic material.

[0065] In a specific embodiment, the permanent magnet 100 is a samarium cobalt permanent magnet.

[0066] In a specific embodiment, a magnetic shielding sheet 170 is also included. The magnetic shielding sheet 170 is arranged around the reed switch 110 and the permanent magnet 100 to prevent external magnetic field interference and improve the stability of the relay.

[0067] In a specific embodiment, the permanent magnet 100 provides a constant magnetic field for controlling the switching state of the reed switch.

[0068] In a specific embodiment, it also includes a package 180, which encapsulates the entire relay and protects the internal components from mechanical damage and environmental impact.

[0069] In a specific embodiment, the frame 120 supports and fixes the various components of the relay.

[0070] Working principle:

[0071] When the coil is not energized, the constant magnetic field provided by the permanent magnet 100 keeps the reed of the reed switch 110 closed, and the load circuit is turned on. When the coil is energized, the generated magnetic field interacts with the magnetic field of the permanent magnet 100, canceling or enhancing the magnetic field, causing the reed of the reed switch 110 to separate and the load circuit to be turned off.

[0072] Example 4

[0073] This embodiment provides a normally closed reed relay with a permanent magnet, including: a reed switch 110, a frame 120, a load terminal 130, an enameled wire 140, a winding pin 150, and a coil terminal 160; it also includes a permanent magnet 100.

[0074] The reed switch 110 and the permanent magnet 100 are both mounted on the frame 120; as Figure 4 As shown, the permanent magnet 100 is disposed around the reed switch 110 to provide a constant magnetic field;

[0075] The reed switch 110 is connected to one end of the load terminal 130 to control the on / off state of the load circuit; the other end of the load terminal 130 is connected to an external load circuit; the enameled wire 140 is wound on the coil frame and generates a magnetic field when energized; the two ends of the enameled wire 140 are connected to the winding pin 150, which fixes the pins of the enameled wire 140; the winding pin 150 connects the enameled wire 140 and one end of the coil terminal 160; the other end of the coil terminal 160 is connected to an external control circuit and generates a magnetic field when energized.

[0076] In a specific embodiment, the reed switch 110 includes a glass tube and two magnetic reeds sealed in the glass tube. When an external magnetic field is applied, the reeds contact or separate to realize the switching on and off of the circuit.

[0077] In a specific embodiment, the permanent magnet 100 is a ring-shaped magnetic material.

[0078] In a specific embodiment, the permanent magnet 100 is a samarium cobalt permanent magnet.

[0079] In a specific embodiment, a magnetic shielding sheet 170 is also included. The magnetic shielding sheet 170 is arranged around the reed switch 110 and the permanent magnet 100 to prevent external magnetic field interference and improve the stability of the relay.

[0080] In a specific embodiment, the permanent magnet 100 provides a constant magnetic field for controlling the switching state of the reed switch.

[0081] In a specific embodiment, it also includes a package 180, which encapsulates the entire relay and protects the internal components from mechanical damage and environmental impact.

[0082] In a specific embodiment, the frame 120 supports and fixes the various components of the relay.

[0083] Working principle:

[0084] When the coil is not energized, the constant magnetic field provided by the permanent magnet 100 keeps the reed of the reed switch 110 closed, and the load circuit is turned on. When the coil is energized, the generated magnetic field interacts with the magnetic field of the permanent magnet 100, canceling or enhancing the magnetic field, causing the reed of the reed switch 110 to separate and the load circuit to be turned off.

[0085] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.

[0086] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A normally closed reed relay with a permanent magnet, comprising: The reed switch (110), frame (120), load terminal (130), enameled wire (140), winding pin (150), and coil terminal (160) are characterized in that they further include a permanent magnet (100). The reed switch (110) and the permanent magnet (100) are both mounted on the frame (120); the permanent magnet (100) is close to the reed switch (110), or the permanent magnet (100) is located at both ends or around the reed switch (110) to provide a constant magnetic field; The reed switch (110) is connected to one end of the load terminal (130) to control the on / off state of the load circuit; the other end of the load terminal (130) is connected to an external load circuit; the enameled wire (140) is wound on the coil frame and generates a magnetic field when energized; the two ends of the enameled wire (140) are connected to the winding pin (150), and the winding pin (150) fixes the pin of the enameled wire (140); the winding pin (150) connects the enameled wire (140) and one end of the coil terminal (160); the other end of the coil terminal (160) is connected to an external control circuit and generates a magnetic field when energized.

2. A normally closed reed relay with a permanent magnet according to claim 1, characterized in that, The reed switch (110) includes a glass tube and two magnetic reeds sealed in the glass tube. When an external magnetic field is applied, the reeds contact or separate to realize the switching on and off of the circuit.

3. A normally closed reed relay with a permanent magnet according to claim 1, characterized in that, When the permanent magnet (100) is close to the reed switch (110), the permanent magnet (100) is a cylindrical magnetic material.

4. A normally closed reed relay with a permanent magnet according to claim 1, characterized in that, When the permanent magnet (100) is disposed at both ends or around the reed switch (110), the permanent magnet (100) is a ring-shaped magnetic material.

5. A normally closed reed relay with a permanent magnet according to claim 1, characterized in that, The permanent magnet (100) is a ferrite permanent magnet or a samarium cobalt permanent magnet.

6. A normally closed reed relay with a permanent magnet according to claim 1, characterized in that, The permanent magnet (100) is a neodymium iron boron permanent magnet.

7. A normally closed reed relay with a permanent magnet according to claim 1, characterized in that, It also includes a magnetic shielding sheet (170), which is arranged around the reed switch (110) and the permanent magnet (100) to prevent external magnetic field interference and improve the stability of the relay.

8. A normally closed reed relay with a permanent magnet according to claim 1, characterized in that, The permanent magnet (100) provides a constant magnetic field for controlling the switching state of the reed switch.

9. A normally closed reed relay with a permanent magnet according to claim 1, characterized in that, It also includes a package (180) that encapsulates the entire relay and protects the internal components from mechanical damage and environmental impact.

10. A normally closed reed relay with a permanent magnet according to claim 1, characterized in that, The frame (120) supports and secures the various components of the relay.

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