阅读说明：本技术 一种带有微动开关的磁保持继电器 (Magnetic latching relay with microswitch ) 是由 钟叔明 廖国进 代文广 李方能 于 2019-10-15 设计创作，主要内容包括：本发明公开一种带有微动开关的磁保持继电器,包括绝缘壳体和微动开关,绝缘壳体由底座和盖体固连而成,底座上枢接有衔铁组件,底座在靠近衔铁组件一端处设有一个容纳微动开关的装配区,微动开关壳体抵接在所述装配区底部并通过该装配区进行定位,微动开关壳体靠近衔铁组件的一侧部分悬空,微动开关壳体悬空的下面空间给衔铁组件和/或推动卡的移动让位,盖体压住微动开关壳体；衔铁组件一端向盖体一侧延伸一压杆,衔铁组件转动时,压杆压住微动开关触动簧片或放松微动开关触动簧片。进一步,所述装配区的底部设有两根定位柱,每根所述定位柱插入微动开关上的一个安装孔。本发明结构紧凑,使得增设微动开关的磁保持继电器体积较小。(The invention discloses a magnetic latching relay with a microswitch, which comprises an insulating shell and the microswitch, wherein the insulating shell is formed by fixedly connecting a base and a cover body, an armature component is pivoted on the base, one end of the base, which is close to the armature component, is provided with an assembly area for accommodating the microswitch, the microswitch shell is abutted against the bottom of the assembly area and is positioned through the assembly area, one side of the microswitch shell, which is close to the armature component, is partially suspended, the suspended lower space of the microswitch shell gives a moving abdication for the armature component and/or a push card, and the cover body presses the microswitch shell; one end of the armature component extends to one side of the cover body to form a pressure rod, and when the armature component rotates, the pressure rod presses the micro switch to trigger the reed or releases the micro switch to trigger the reed. Furthermore, two positioning columns are arranged at the bottom of the assembling area, and each positioning column is inserted into one mounting hole in the microswitch. The invention has compact structure, and the volume of the magnetic latching relay additionally provided with the microswitch is smaller.)

1. The utility model provides a magnetic latching relay with micro-gap switch, including insulating housing and micro-gap switch, insulating housing is linked firmly by base and lid and forms, is equipped with magnetic circuit on the base, promotes card and contact system, and magnetic circuit includes the armature subassembly, and the middle part pin joint of armature subassembly is on the base, and contact system includes movable contact and stationary contact, and the armature subassembly is connected and is pushed the card and make movable contact and stationary contact joint or separation, its characterized in that through the movable contact that promotes card drive contact system:

the base is provided with an assembly area for accommodating a microswitch at one end close to the armature component, the microswitch shell is abutted against the bottom of the assembly area and is positioned through the assembly area, one side of the microswitch shell close to the armature component is partially suspended, the suspended lower space of the microswitch shell gives the movement abdication to the armature component and/or the push card, and the cover presses the microswitch shell when the cover is fixedly connected to the base;

one end of the armature component extends to one side of the cover body to form a pressure rod, and when the armature component rotates, the pressure rod presses the micro switch to trigger the reed or releases the micro switch to trigger the reed.

2. The magnetic latching relay with microswitch of claim 1, wherein: two positioning columns are arranged at the bottom of the assembly area, and each positioning column is inserted into one mounting hole in the microswitch when the microswitch is mounted in the assembly area; the two positioning columns are parallel to the pressing rod.

3. The magnetic latching relay with microswitch of claim 2, wherein: the positioning column comprises a cylinder, and a plurality of positioning convex parts are arranged on the peripheral surface of the cylinder at intervals along the radial direction of the cylinder; each positioning convex part is in a long strip shape and is distributed along the axial direction of the cylinder.

4. The magnetic latching relay with microswitch of claim 2, wherein: and a limiting column for limiting the displacement of the micro-switch shell is arranged at the bottom of the assembly area beside one positioning column.

5. The magnetic latching relay with microswitch of claim 1, wherein: the distance between the bottom surface of the microswitch shell and the bottom surface of the base is larger than the distance between the upper surface of one end, connected with the armature component, of the push card and the bottom surface of the base, so that one end of the push card does not interfere with the microswitch when moving.

6. The magnetic latching relay with microswitch of claim 1, wherein: the bottom of the assembly area is formed by the upper end face of a convex block on the base, and one side of the convex block, which is close to the armature component, is in a step shape.

7. The magnetic latching relay with microswitch of claim 1, wherein: the inner side surface of the cover body is provided with a limiting rib, and when the cover body is fixedly connected to the base, the limiting rib presses the micro-switch shell.

8. The magnetic latching relay with microswitch of claim 1, wherein: a plurality of conductive plug terminals of the micro switch are bent and then penetrate out of the cover body or the bottom of the base.

9. The magnetic latching relay with microswitch of claim 8, wherein: when a plurality of conductive plug terminals of the microswitch are bent and then penetrate out of the bottom of the base, the conductive plug terminals are fixedly connected with a terminal extension piece which comprises an I-shaped frame, insulators are arranged at two ends of the I-shaped frame, a plurality of conductive extension pins penetrate through two ends of the I-shaped frame at intervals, the plurality of conductive plug terminals of the microswitch are inserted into one end of the I-shaped frame at intervals, and each conductive plug terminal of the microswitch is contacted with one conductive extension pin;

the base is in the bottom in assembly area is equipped with a through-hole, and the through-hole runs through the bottom of base, the I-shaped frame inlays in the through-hole, many the base is worn out to the one end of electrically conductive extension pin.

10. The magnetic latching relay with microswitch of claim 1, wherein: the contact system comprises two movable springs and two static springs, wherein each movable spring is provided with the movable contact, each static spring is provided with the static contact, the number of the push clamps is two, one end of each push clamp is provided with a clamping groove, the push clamp below the clamping groove is provided with a matching hole, the two ends of the armature component are provided with clamping parts, each clamping part is matched with the clamping groove at one end of one push clamp and inserted into the matching hole, the other end of each push clamp is connected with one end of one movable spring, and the other end of each movable spring is connected with a conductive leading-out pin.

11. A magnetic latching relay with a microswitch according to any one of claims 1 to 10, wherein: one end of the armature component extends to one side far away from the micro switch, and the pressure rod is arranged at one end of the support part far away from the micro switch.

Technical Field

The invention relates to the technical field of manufacturing of magnetic latching relays, in particular to a magnetic latching relay with a microswitch.

Background

The magnetic latching relay is a novel relay developed in recent years and is also an automatic switch. As with other electromagnetic relays, it acts to automatically turn on and off the circuit. The magnetic latching relay has the advantages that the normally closed state or the normally open state of the magnetic latching relay completely depends on the action of permanent magnetic steel, and the switching state of the magnetic latching relay is triggered by pulse electric signals with certain width to complete the switching.

Existing magnetically held relays typically include a plastic housing, a plurality of conductive pins, a magnetic circuit system, a contact system, and a push mechanism. The conductive pins, the magnetic circuit system, the contact system and the pushing mechanism are all arranged on the plastic shell. The magnetic circuit system generally comprises a yoke, a coil and an armature assembly, the contact system comprises a movable spring and a static spring, the movable spring is provided with a movable contact, the static spring is provided with a static contact, the pushing mechanism comprises a pushing card, the armature assembly is connected with the pushing card, the pushing card is connected with the movable spring part, one end of a conductive leading-out pin in the shell is fixedly connected with the movable spring and the static spring, when a relay coil is energized with positive pulse voltage, the magnetic circuit system works, the armature assembly drives the pushing card, the pushing card pushes the movable spring to move, the movable contact is contacted with the static contact, and the relay is in an on state; when the coil of the relay is energized with reverse pulse voltage, the magnetic circuit system works again, the armature component drives the pushing clamp to return, the pushing clamp pulls the moving spring to return, the moving contact is separated from the static contact, the contact is disconnected, and the relay is in a cut-off state.

In order to judge whether a movable contact and a fixed contact of the magnetic latching relay are in a combined state or in a separated state, a microswitch is arranged in part of the magnetic latching relay, and the state between the movable contact and the fixed contact is judged by closing or opening the contact of the microswitch.

For example, a patent number ZL201210198058.2, named as: the invention relates to a three-closing force magnetic latching relay capable of monitoring the opening and closing states of a movable contact and a fixed contact, which belongs to the Chinese patent application and comprises a shell, a coil component, a rotary armature component, a combined pushing card, a movable reed, a movable contact and the fixed contact, wherein a compressed duplex spring is arranged at the back of the movable contact on the movable reed, and the duplex spring is formed by connecting two spiral springs into a whole through a steel wire at the bottom; the back of the movable contact on the movable spring is also provided with a Z-shaped pressure spring piece, the upper part of the pressure spring piece is attached to the surface of the movable spring behind the movable contact, and the lower part of the pressure spring piece is clamped into the combined pushing card; the upper surface of the combined pushing card is provided with a convex block; the shell corresponding to the position of the bump is provided with a microswitch connected with an external display device. The invention has the function of monitoring the opening and closing states of the movable contact and the fixed contact, so that the external display device can display the closed or opened state of the external display device. However, due to the fact that the microswitch is additionally arranged on the magnetic latching relay, the size of a shell of the magnetic latching relay is increased, and the arrangement difficulty of the magnetic latching relay with the microswitch on electrical equipment is also increased.

Disclosure of Invention

The invention aims to provide a magnetic latching relay with a microswitch, which has a compact structure, so that the magnetic latching relay additionally provided with the microswitch has a smaller volume and is beneficial to realizing the automatic assembly of the microswitch.

In order to achieve the purpose, the technical scheme of the invention is as follows: a magnetic latching relay with a microswitch comprises an insulating shell and the microswitch, wherein the insulating shell is formed by fixedly connecting a base and a cover, a magnetic circuit system, a push card and a contact system are arranged on the base, the magnetic circuit system comprises an armature component, the middle part of the armature component is pivoted on the base, the contact system comprises a movable contact and a fixed contact, the armature component is connected with the push card and drives the movable contact of the contact system to enable the movable contact to be jointed with or separated from the fixed contact through the push card, an assembly area for accommodating the microswitch is arranged at one end of the base close to the armature component, the bottom surface of the microswitch shell is abutted against the bottom of the assembly area and is positioned through the assembly area, one side part of the microswitch shell close to the armature component is suspended, the lower suspended space of the microswitch shell gives a moving abdication for the armature component and/or the push card, and the cover is fixedly connected on, the cover body presses the microswitch shell;

one end of the armature component extends to one side of the cover body to form a pressure rod, and when the armature component rotates, the pressure rod presses the micro switch to trigger the reed or releases the micro switch to trigger the reed.

The bottom of the assembly area is provided with two positioning columns, and each positioning column is inserted into one mounting hole in the microswitch when the microswitch is mounted in the assembly area; the two positioning columns are parallel to the pressing rod. Therefore, the positioning and the assembly of the microswitch are more convenient.

Furthermore, the positioning column comprises a cylinder, and a plurality of positioning convex parts are arranged on the peripheral surface of the cylinder at intervals along the radial direction of the cylinder; each positioning convex part is in a long strip shape and is distributed along the axial direction of the cylinder.

In a further improvement, a limiting column for limiting the displacement of the micro-switch shell is arranged at the bottom of the assembling area beside one positioning column. Therefore, the micro switch shell is prevented from overturning and shifting through the limiting of the limiting column.

The distance between the bottom surface of the shell of the microswitch and the bottom surface of the base is further improved to be larger than the distance between the upper surface of one end, connected with the armature component, of the push card and the bottom surface of the base, so that one end of the push card does not interfere with the microswitch when moving. So as to facilitate the arrangement of the abdicating and pushing the card of the microswitch. The structure is further compact.

In a further improvement, the bottom of the assembly area is formed by the upper end face of a lug on the base, and one side of the lug, which is close to the armature component, is in a step shape. This may better give way for the armature assembly to rotate and for the card to move.

The improved microswitch is characterized in that a limiting rib is arranged on the inner side surface of the cover body, and when the cover body is fixedly connected to the base, the limiting rib presses the microswitch shell.

In a further improvement, a plurality of conductive plug terminals of the micro switch are bent and then penetrate out of the cover body or the bottom of the base. The installation of the relay and the connection of the conductive insertion end of the microswitch are facilitated.

Furthermore, when a plurality of conductive plug terminals of the micro switch are bent and then penetrate out of the bottom of the base, a terminal extension piece is fixedly connected onto the conductive plug terminals and comprises an I-shaped frame, insulators are arranged at two ends of the I-shaped frame, a plurality of conductive extension pins penetrate through two ends of the I-shaped frame at intervals, the plurality of conductive plug terminals of the micro switch are inserted into one end of the I-shaped frame at intervals, and each conductive plug terminal of the micro switch is in contact with one conductive extension pin; the base is in the bottom in assembly area is equipped with a through-hole, and the through-hole runs through the bottom of base, the I-shaped frame inlays in the through-hole, many the base is worn out to the one end of electrically conductive extension pin. The terminal extension piece is used for prolonging the length of the conductive plug terminal, ensuring the strength of the conductive plug terminal and ensuring the plug reliability.

Preferably, the contact system comprises two movable springs and two static springs, the movable contact is arranged on each movable spring, the static contact is arranged on each static spring, the number of the push clamps is two, one end of each push clamp is provided with a clamping groove, a matching hole is formed in each push clamp below the clamping groove, the two ends of the armature component are provided with clamping portions, each clamping portion is matched with the clamping groove at one end of one push clamp and inserted into the matching hole, the other end of each push clamp is connected with one end of one movable spring, and the other end of each movable spring is connected with a conductive leading-out pin. Therefore, the armature component can drive two groups of movable and static contacts of the contact system to be combined or separated through the two pushing clamps.

In a further improvement, one end of the armature component extends to one side far away from the micro switch, and the pressure rod is arranged at one end of the support part far away from the micro switch. Therefore, the microswitch can be better abducted, so that the whole structure is more compact.

According to the invention, the base is provided with an assembly area for accommodating the micro switch at one end close to the armature component, the micro switch shell is abutted against the bottom of the assembly area and is positioned through the assembly area, one side of the micro switch shell close to the armature component is partially suspended, the suspended lower space of the micro switch shell gives a way for the movement of the armature component and/or the push card, and when the cover body is fixedly connected to the base, the cover body presses the micro switch shell; one end of the armature component extends to one side of the cover body to form a pressure rod, and when the armature component rotates, the pressure rod presses the micro switch to trigger the reed or releases the micro switch to trigger the reed. On one hand, the microswitch can be arranged closer to the armature component, and the residual space on the base is fully utilized, so that the overall structure of the relay is compact, and the volume of the magnetic latching relay after the microswitch is added is smaller; on the other hand, the microswitch shell is abutted against the bottom of the assembling area and is positioned through the assembling area, and then the cover body presses the microswitch shell; therefore, the mechanical arm can conveniently grab the microswitch and the cover body for assembly, the automatic assembly of the microswitch is facilitated, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a top perspective view of a first embodiment of the present invention;

FIG. 2 is an exploded perspective view of the first embodiment of the present invention;

FIG. 3 is an enlarged view at A of FIG. 2;

FIG. 4 is a bottom perspective view of the first embodiment of the present invention concealing the base, micro-switch and a stationary spring plate;

FIG. 5 is a perspective view of a base of the first embodiment of the present invention;

FIG. 6 is an enlarged view at B of FIG. 5;

fig. 7 is a perspective view of an armature assembly according to a first embodiment of the present invention;

FIG. 8 is a perspective view of a microswitch according to a first embodiment of the present invention;

FIG. 9 is a top perspective view of the first embodiment of the present invention concealing cover and magnetic circuit system;

FIG. 10 is a perspective view of a second embodiment of the present invention concealing base, cover and a stationary spring plate;

FIG. 11 is a bottom perspective view of a hidden cover of the second embodiment of the present invention;

FIG. 12 is a top perspective view of a base according to a second embodiment of the present invention;

fig. 13 is a perspective view of a microswitch connected to a terminal extension in accordance with a second embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.