阅读说明：本技术 高灵敏性继电器 (High-sensitivity relay ) 是由 苏朋 胡继超 杜德进 陈烜 白慧龙 于 2019-09-01 设计创作，主要内容包括：本发明的目的是提供一种能保证动静触点及时接触,能保证继电器高灵敏性且不需要加大线圈匝数的高灵敏性继电器。为实现上述目的,本发明采用如下技术方案：一种高灵敏性继电器,包括动触点和静触点,所述静触点固定于引出端下端,所述动触点固定于动簧片上,所述引出端上设有由磁性材料制成的上导磁体或/和动簧片上设有由磁性材料制成下导磁体。通过在引出端上设置上导磁体,或在动簧片上设置下导磁体,或及设有上导磁体又设有下导磁体,当继电器通电后,上导磁体吸引动簧片,下导磁体吸引引出端,以使动静触点的接触更为迅速,响应更为灵敏,且能使动静触点的接触效果更好,以提高继电器灵敏性。(The invention aims to provide a high-sensitivity relay which can ensure timely contact between a moving contact and a static contact, can ensure high sensitivity of the relay and does not need to increase the number of turns of a coil. In order to achieve the purpose, the invention adopts the following technical scheme: a high-sensitivity relay comprises a movable contact and a fixed contact, wherein the fixed contact is fixed at the lower end of a leading-out end, the movable contact is fixed on a movable reed, an upper magnetizer made of magnetic materials is arranged on the leading-out end or/and a lower magnetizer made of magnetic materials is arranged on the movable reed. The upper magnetizer is arranged on the leading-out end, or the lower magnetizer is arranged on the movable reed, or the upper magnetizer and the lower magnetizer are arranged, when the relay is electrified, the upper magnetizer attracts the movable reed, and the lower magnetizer attracts the leading-out end, so that the movable contact and the static contact are contacted more quickly, the response is more sensitive, the contact effect of the movable contact and the static contact is better, and the sensitivity of the relay is improved.)

1. A high-sensitivity relay is characterized by comprising a movable contact and a fixed contact, wherein the fixed contact is fixed at the lower end of a leading-out end, the movable contact is fixed on a movable reed, an upper magnetizer made of magnetic materials is arranged on the leading-out end or/and a lower magnetizer made of magnetic materials is arranged on the movable reed.

2. The high-sensitivity relay according to claim 1, wherein the portion of the leading end adjacent to the stationary contact is provided with the upper magnetizer.

3. The high-sensitivity relay according to claim 1, wherein the portion of the movable spring adjacent to the movable contact is provided with the lower magnetic conductor.

4. The high-sensitivity relay according to claim 2, wherein the terminal is formed with an upper receiving groove opened downward, the upper magnetizer is positioned directly above the stationary contact and in the upper receiving groove, and the stationary contact and the terminal are fixed to close the upper receiving groove.

5. The high-sensitivity relay according to claim 2, wherein the lower end of the terminal is formed with an upper receiving groove having an annular cross section, the upper magnetic conductor is annular and located in the upper receiving groove, and the upper magnetic conductor is located directly above the stationary contact.

6. The high-sensitivity relay according to claim 2, wherein a lower receiving groove is formed in the movable spring, and the lower magnetic conductor is located in the lower receiving groove.

7. The high-sensitivity relay according to claim 2 or 6, wherein the lower magnetizers are respectively arranged right below the movable contact.

8. The high-sensitivity relay according to claim 2 or 6, wherein the upper end surface of the movable reed is recessed to form the lower receiving groove, and the movable contact is fixed to the movable reed to close the lower receiving groove.

Technical Field

The invention relates to a high-voltage direct-current relay, in particular to a high-sensitivity relay.

background

Chinese patent No. 201610276487.5 discloses a high-voltage relay, which comprises a fixed contact and a movable contact, wherein the movable contact is fixed on a movable spring plate, the movable spring plate is fixed on the top end of a push rod, the push rod is fixed with a movable iron core in a sliding way, the movable iron core is arranged in a magnetic conduction cylinder in a sliding way, and after a relay coil is electrified, the movable iron core drives the push rod to move upwards so as to enable the movable contact on the movable spring plate to move upwards so as to be in contact with the fixed contact.

In production and assembly, the distance between the static contact and the dynamic and static contacts of two groups of dynamic and static contacts in the relay is difficult to be ensured to be consistent, the movable spring is difficult to be ensured to be absolutely horizontal, and the condition that one group of dynamic and static contacts are contacted and the other side of the dynamic and static contacts are not contacted exists. In order to ensure that two sets of moving and static contacts can be contacted in time, the coil needs to be made larger, but the size of the relay can be enlarged by doing so.

Disclosure of Invention

The invention aims to provide a high-sensitivity relay which can ensure timely contact between a moving contact and a static contact, can ensure high sensitivity of the relay and does not need to increase the number of turns of a coil.

In order to achieve the purpose, the invention adopts the following technical scheme: a high-sensitivity relay comprises a movable contact and a fixed contact, wherein the fixed contact is fixed at the lower end of a leading-out end, the movable contact is fixed on a movable reed, an upper magnetizer made of magnetic materials is arranged on the leading-out end or/and a lower magnetizer made of magnetic materials is arranged on the movable reed.

The upper magnetizer is arranged on the leading-out end, or the lower magnetizer is arranged on the movable reed, or the upper magnetizer and the lower magnetizer are arranged, when the relay is electrified, the upper magnetizer attracts the movable reed, and the lower magnetizer attracts the leading-out end, so that the movable contact and the static contact are contacted more quickly, the response is more sensitive, the contact effect of the movable contact and the static contact is better, and the sensitivity of the relay is improved.

Preferably, the upper magnetizer is arranged at the position of the leading-out end close to the static contact. The arrangement makes the upper magnetizer closer to the movable reed, so that the attraction effect is better.

Preferably, the part of the movable spring piece close to the movable contact is provided with the lower magnetizer. The arrangement enables the lower magnetizer to be closer to the leading-out end, so that the attraction effect is better.

Preferably, the leading-out end is formed with an upper accommodating groove with a downward opening, the upper magnetizer is located right above the stationary contact and located in the upper accommodating groove, and the stationary contact and the leading-out end are fixed to seal the upper accommodating groove. The upper magnetizer is arranged inside the leading-out end so as to be convenient for arranging other parts at the side of the moving contact and the static contact, and the arrangement of the upper magnetizer does not influence the arrangement of other parts of the relay. Meanwhile, the distance between the upper magnetizer and the movable reed is closer by the arrangement.

Preferably, an upper accommodating groove with an annular cross section is formed at the lower end of the leading-out end, the upper magnetizer is annular and is positioned in the upper accommodating groove, and the upper magnetizer is positioned right above the stationary contact.

Preferably, a lower accommodating groove is formed in the movable spring piece, and the lower magnetizer is located in the lower accommodating groove. The arrangement avoids the interference of the lower magnetizer on other parts, and is convenient for the arrangement of other parts.

Preferably, the lower magnetizers are arranged right below the movable contact. The arrangement makes the lower magnetizer closer to the leading-out end, so that the attraction effect between the lower magnetizer and the leading-out end is better.

Preferably, the upper end surface of the movable spring is recessed to form the lower accommodating groove, and the movable contact is fixed on the movable spring to close the lower accommodating groove. The arrangement ensures that the lower magnetizer has better fixing effect and can prevent the lower magnetizer from being separated from the driven reed.

The invention has the advantages of more rapid contact of the movable contact and the static contact, more sensitive response, better contact effect of the movable contact and the static contact and improvement of the sensitivity of the relay.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Detailed Description

The invention is further described below with reference to the figures and specific embodiments.