A high voltage relay with a change-over dry reed

Abstract

The utility model discloses a conversion type dry reed high voltage relay, specifically relates to dry reed relay technical field, including the casing and the first relay assembly and the second relay assembly that are in parallelly arranged in the casing, be equipped with permanent magnet on the first relay assembly, can exert magnetic force to the first relay assembly through permanent magnet, make it with the second relay assembly is in opposite state, opposite state refers to the first relay assembly is in the on state, and the second relay assembly is in the off state, or the first relay assembly is in the off state, and the second relay assembly is in the on state, realize the control function of conversion type through the setting of permanent magnet.

Description

Technical Field

[0001] This utility model relates to the field of reed relay technology, and in particular to a changeover type reed high voltage relay. Background Technology

[0002] A reed switch, also known as a magnetic reed switch or magnetic reed relay, has a core component of a magnetic reed sealed in an inert gas or high-vacuum glass tube. The reed is magnetized by an external magnetic field to conduct the circuit. It features small current control of large current and high / low voltage isolation, and is widely used in automatic control, medical electronics, electric vehicles, and instrumentation. As a special magnetically sensitive switch, the reed relay can reflect signals such as voltage, current, power, and current polarity, and is widely used in fields such as monitoring, active control, and computer control technology. A reed relay primarily consists of a dry reed and an excitation coil. The dry reed (contact) is sealed, effectively preventing dust contamination, reducing contact corrosion, and minimizing arcing during operation. It also features a simple overall structure, small size, and low pull-in power, typically with pull-in and release times within 2-4 ms. Generally, different specifications (i.e., different withstand voltages) of reed switches are selected for different applications, especially for complex control environments under high voltage, such as new energy storage equipment testing, medical emergency testing equipment, electromagnetic testing equipment, and high-voltage line switching. These applications also require switching control functions. Existing relays with switching control functions have relatively complex structures; this paper provides a simpler solution to address this problem. Summary of the Invention

[0003] I. Technical problems to be solved To address the aforementioned shortcomings of existing technologies, a switching reed high-voltage relay is provided, which solves the problem of how to achieve a high-voltage reed relay and switching control function while saving costs.

[0004] II. Technical Solution To solve the above problems, a changeover type reed high voltage relay is provided, including a housing, and a first relay assembly and a second relay assembly arranged in parallel within the housing; The first relay assembly is provided with a permanent magnet, which can apply magnetic force to the first relay assembly, causing it to be in the opposite state to the second relay assembly; The opposite state refers to the first relay component being in the ON state and the second relay component being in the OFF state; or the first relay component being in the OFF state and the second relay component being in the ON state.

[0005] Preferably, both the first relay assembly and the second relay assembly include a coil frame, a coil wound on the coil frame, and a reed switch disposed within the coil frame; A permanent magnet is provided on the outside of the coil of the first relay assembly.

[0006] Preferably, the reed switch pins and coil pins extending downward on the first relay assembly and the second relay assembly are fixed by a circuit board.

[0007] Preferably, the reed switch pins are fixed near both ends of the circuit board, and the coil pins are fixed in the middle of the circuit board.

[0008] Preferably, the first relay assembly and the second relay assembly are arranged in parallel side by side within the housing; Alternatively, the first relay assembly and the second relay assembly may be arranged in a straight line within the housing.

[0009] Preferably, the housing is filled with epoxy resin.

[0010] III. Beneficial Effects of This Utility Model Compared with the prior art, this utility model achieves a switching control function by setting a permanent magnet. Specifically, the permanent magnet can apply magnetic force to the first relay component, so that it is in the opposite state to the second relay component; that is, when the first relay component is in the on state, the second relay component is in the off state; or when the first relay component is in the off state, the second relay component is in the on state. By adjusting the position of the permanent magnet, it can be ensured that the first relay component and the second relay component do not interfere with each other when switching. Furthermore, the parallel / linear layout adapts to different installation spaces, and the circuit board is partitioned to fix the pins to prevent high voltage breakdown; epoxy resin filling blocks air ionization and provides a fixing effect, improving voltage tolerance. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention; Figure 2 This is a utility model Figure 2 Internal structure diagram; In the picture: 1 is the housing; 2 is the circuit board; 3 is the coil frame; 4 is the coil; 4a is the coil pin; 5 is the reed switch; 5c is the reed switch pin; 6 is the through hole; 10 is the first relay assembly; 11 is the second relay assembly; 12 is the permanent magnet. Detailed Implementation

[0012] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0013] like Figure 1 As shown, the switching type reed high voltage relay includes a housing 1, and a first relay assembly 10 and a second relay assembly 11 arranged in parallel within the housing 1; the first relay assembly 10 is provided with a permanent magnet 12, and the permanent magnet 12 can apply a magnetic force to the first relay assembly 10, so that it is in the opposite state to the second relay assembly 11. The opposite state refers to the first relay assembly 10 being in the ON state and the second relay assembly 11 being in the OFF state; or the first relay assembly 10 being in the OFF state and the second relay assembly 11 being in the ON state. Specifically, if the permanent magnet 12 is not set, the first relay assembly 10 and the second relay assembly 11 are in a synchronous state. However, after the permanent magnet 12 is set, the first relay assembly 10 remains in the ON state in the initial state under the action of the permanent magnet 12. After being energized, the magnetic field generated by the coil 4 overcomes the magnetic force of the permanent magnet 12, thereby causing the first relay assembly 10 to switch to the OFF state, while the second relay assembly 11 enters the ON state under the action of the magnetic force generated by its corresponding coil 4. This achieves the switching state of the two sets of reed relays. The permanent magnet 12 needs to be set in an appropriate position according to the magnitude of the magnetic force.

[0014] like Figure 2 As shown, both the first relay assembly 10 and the second relay assembly 11 include a coil frame 3, a coil 4 wound on the coil frame 3, and a reed switch 5 disposed within the coil frame 3. The reed switch 5 is a reed switch with high voltage resistance, which is a structural configuration of conventional reed relays. The core difference between this application and the prior art is that a permanent magnet 12 is provided on the outside of the coil 4 of the first relay assembly 10. Its specific function is as described above, thereby realizing the effect of a switching type reed high voltage relay. By adjusting the position of the permanent magnet, it can be ensured that the first relay assembly and the second relay assembly do not interfere with each other when switching.

[0015] The reed switch pin 5c and coil pin 4a extending downward from the first relay assembly 10 and the second relay assembly 11 are fixed by the circuit board 2. The reed switch pin 5c is fixed near both ends of the circuit board 2, and the coil pin 4a is fixed in the middle of the circuit board 2.

[0016] like Figure 1 As shown, the first relay assembly 10 and the second relay assembly 11 are arranged in parallel side by side inside the housing 1; or the first relay assembly 10 and the second relay assembly 11 can also be arranged in a straight line inside the housing 1. The two different structures can adapt to different installation spaces.

[0017] The housing 1 is filled with epoxy resin. The epoxy resin filler blocks air ionization and has a fixing effect, which improves the voltage resistance and further enhances safety.

[0018] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A switching type reed high-voltage relay, characterized in that, The switching reed high voltage relay includes a housing (1) and a first relay assembly (10) and a second relay assembly (11) arranged in parallel within the housing (1). The first relay assembly (10) is provided with a permanent magnet (12). The permanent magnet (12) can apply magnetic force to the first relay assembly (10), so that the first relay assembly (10) and the second relay assembly (11) are in opposite states; that is, the first relay assembly (10) is in the on state and the second relay assembly (11) is in the off state; or the first relay assembly (10) is in the off state and the second relay assembly (11) is in the on state.

2. The changeover type reed high-voltage relay as described in claim 1, characterized in that, The first relay assembly (10) and the second relay assembly (11) both include a coil frame (3), a coil (4) wound on the coil frame (3), and a reed switch (5) disposed in the coil frame (3). A permanent magnet (12) is provided on the outside of the coil (4) of the first relay assembly (10).

3. A changeover type reed high-voltage relay as described in claim 1, characterized in that, The reed pin (5c) and coil pin (4a) extending downward from the first relay assembly (10) and the second relay assembly (11) are fixed to the circuit board (2) at the bottom of the housing (1).

4. A switching type reed high-voltage relay as described in claim 3, characterized in that, The reed switch pin (5c) is fixed near both ends of the circuit board (2), and the coil pin (4a) is fixed in the middle of the circuit board (2).

5. A changeover type reed high-voltage relay as described in claim 1, characterized in that, The first relay assembly (10) and the second relay assembly (11) are arranged in parallel side by side inside the housing (1); Alternatively, the first relay assembly (10) and the second relay assembly (11) may be arranged in a straight line within the housing (1).

6. A changeover type reed high-voltage relay as described in claim 1, characterized in that, The housing (1) is filled with epoxy resin.

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