阅读说明：本技术 一种卧式磁路结构的拍合式电磁继电器 (Clapper type electromagnetic relay with horizontal magnetic circuit structure ) 是由 鲁道夫·美科尔 李丽贞 姚茂松 王其亚 于 2020-05-13 设计创作，主要内容包括：本发明公开了一种卧式磁路结构的拍合式电磁继电器,包括底座、线圈、铁芯、衔铁、动簧部分、静簧部分和推动块；线圈呈卧式安装,衔铁装在线圈的上面；动簧部分包括动簧片、超程簧片和动触点,动簧片的头部设为桥式簧片,动簧片设在线圈的下方,超程簧片设在动簧片的头部的里侧并向动簧片的头部上方斜向伸出,两个动触点分别设在桥式簧片的两端；两个静簧部分分别装在底座上,静簧部分的静触点与动簧部分的动触点对应相配合；推动块连接在衔铁的头部与动簧部分之间,动簧部分的超程簧片的顶端抵在推动块的底端。本发明能够降低继电器在高度方向的尺寸以及缩小继电器的长度尺寸,实现继电器产品的小型化,并具有装配简单,产品一致性好的特点。(The invention discloses a clapper type electromagnetic relay with a horizontal magnetic circuit structure, which comprises a base, a coil, an iron core, an armature, a movable spring part, a static spring part and a pushing block, wherein the coil is arranged on the base; the coil is horizontally arranged, and the armature is arranged on the coil; the movable spring part comprises a movable spring piece, an overtravel spring piece and two movable contacts, the head of the movable spring piece is provided with a bridge type spring piece, the movable spring piece is arranged below the coil, the overtravel spring piece is arranged on the inner side of the head of the movable spring piece and extends obliquely above the head of the movable spring piece, and the two movable contacts are respectively arranged at two ends of the bridge type spring piece; the two static spring parts are respectively arranged on the base, and the static contact of the static spring part is correspondingly matched with the movable contact of the movable spring part; the pushing block is connected between the head of the armature and the movable spring part, and the top end of the over travel spring of the movable spring part is abutted against the bottom end of the pushing block. The invention can reduce the size of the relay in the height direction and the length size of the relay, realizes the miniaturization of relay products, and has the characteristics of simple assembly and good product consistency.)

1. A clapper type electromagnetic relay with a horizontal magnetic circuit structure comprises a base, a coil, an iron core, an armature, a movable spring part, a static spring part and a pushing block; the coil is horizontally arranged on the base, the iron core is matched in a through hole of the coil, the armature is arranged on the coil, and the head of the armature is matched with the head of the iron core with a pole face, which extends out of the through hole, in the iron core; the method is characterized in that: the movable spring part comprises a movable spring piece, an over travel spring piece and movable contacts, wherein the head of the movable spring piece is a bridge type spring piece, the two movable contacts are respectively arranged at two ends of the bridge type spring piece, the movable spring piece is arranged below the coil, the tail of the movable spring piece is fixed with the base so as to enable the head of the movable spring piece to swing up and down relative to the base, and the over travel spring piece is arranged at the inner side of the head of the movable spring piece and extends obliquely to the upper part of the head of the movable spring piece; the two static spring parts are respectively provided with a static contact, the two static spring parts are respectively arranged on the base, and the static contacts of the static spring parts are correspondingly matched with the movable contacts of the movable spring parts; the pushing block is connected between the head of the armature and the movable spring part, and the top end of an over travel spring of the movable spring part abuts against the bottom end of the pushing block.

2. The clapper type electromagnetic relay of the horizontal magnetic circuit structure according to claim 1, wherein: the movable spring is elongated, the length of the movable spring is along the axial direction of the coil, the tail of the movable spring is fixed on the base corresponding to the inner side position of the flange at one end of the coil frame of the coil, and the head of the movable spring extends to the position, corresponding to the lower part of the pole face of the iron core, of the outer side position of the flange at the other end of the coil frame of the coil, so that the movable spring and the coil are compactly distributed.

3. The clapper type electromagnetic relay of the horizontal magnetic circuit structure according to claim 1 or 2, wherein: the movable reed is formed by overlapping three leaf spring sheets, and a U-shaped bent structure is further arranged at the position, close to the tail part, of the movable reed, and fixed with the base, so that the flexibility of the movable reed is improved.

4. The clapper type electromagnetic relay of the horizontal magnetic circuit structure according to claim 3, wherein: the base is provided with a first groove used for accommodating the U-shaped bent structure of the movable spring.

5. The clapper type electromagnetic relay of the horizontal magnetic circuit structure according to claim 1, wherein: the overtravel reed is an independent part, one end of the overtravel reed is fixed at the position, close to the movable contact, of the movable reed in the length direction, and the other end of the overtravel reed is arranged to be in an arc structure and abuts against the bottom end of the pushing block.

6. The clapper type electromagnetic relay of the horizontal magnetic circuit structure according to claim 3, wherein: the over travel reed is that two integrated into one piece are in the anti-piece of perk of the uppermost layer reed in three reeds of movable contact spring, the one end an organic whole of the anti-piece of perk is connected in the inboard position that corresponds to the movable contact of bridge type reed, the other end that the anti-piece of perk is bent into roughly the level form and is supported the bottom of promotion piece.

7. The clapper type electromagnetic relay of the horizontal magnetic circuit structure according to claim 1, wherein: the pushing block is of a cage-type structure and comprises a bottom structure and side plates extending upwards from two sides of the bottom structure, the two side plates of the pushing block are respectively enclosed at two sides of the head of the iron core, which correspond to the width of the iron core, the bottom structure of the pushing block is correspondingly arranged below the head of the iron core, and the top ends of the two side plates of the pushing block are respectively matched with two sides of the head of the armature, which correspond to the width of the armature; the bottom end of the bottom structure of the pushing block is matched with the top end of the over travel reed.

8. The clapper-type electromagnetic relay of the horizontal magnetic circuit structure according to claim 7, wherein: the top ends of the two side plates of the pushing block are respectively provided with a second groove, two sides of the head of the armature corresponding to the width of the armature are respectively provided with a convex part outwards, and the two convex parts of the head of the armature are respectively matched in the corresponding second grooves of the top ends of the two side plates of the pushing block.

9. The clapper-type electromagnetic relay of the horizontal magnetic circuit structure according to claim 7, wherein: the bottom structure of the pushing block comprises a bottom plate and a plurality of reinforcing plates, and two ends of the bottom plate of the pushing block are respectively fixed with the bottom ends of two side plates of the pushing block; the reinforcing plates are distributed side by side in a roughly vertical mode, the bottom end of each reinforcing plate is fixed with the bottom plate of the pushing block, and the two ends of each reinforcing plate are respectively fixed with the two side plates of the pushing block; the top end of the over travel spring plate is abutted against the lower surface of the bottom plate of the pushing block.

10. The clapper type electromagnetic relay of the horizontal magnetic circuit structure according to claim 1, wherein: the iron core is plate-shaped and is provided with a first bending part so that the head of the iron core deviates to the upper part of the position of the through hole of the coil; the two sides of the head of the armature corresponding to the width of the armature are respectively provided with a widening part, and the convex part is arranged on the outer side of the widening part.

Technical Field

The invention relates to the technical field of relays, in particular to a clapper type electromagnetic relay with a horizontal magnetic circuit structure.

Background

The electromagnetic relay is an electromechanical element widely applied to various household appliances, office equipment and industrial control. An electromagnetic relay generally includes a contact portion including a movable spring portion and a stationary spring portion, a magnetic circuit portion, a pushing portion, and a base, the pushing portion being connected between the movable spring portion and the magnetic circuit portion, and when the magnetic circuit portion operates, the movable spring portion is driven by the pushing portion to move, so that a movable contact of the movable spring portion is brought into contact with (i.e., contact is closed) or separated from (i.e., contact is open) a stationary contact of the stationary spring portion. With the increasing expansion of the application field of electromagnetic relays, in many applications, such as in the field of automobiles, the installation space of the relays is very limited, which requires the reduction of the size of the relays. In the clapper type electromagnetic relay in the prior art, a magnetic circuit structure is arranged in a horizontal type, namely, the axis of a coil of the magnetic circuit structure is parallel to a base, and the electromagnetic relay of the magnetic circuit structure is vertical to the base relative to the axis of the coil, so that the electromagnetic relay product can be greatly reduced in the height direction, and an electromagnetic relay with low height is formed, and the installation space of the electromagnetic relay product in the height direction can be reduced, however, because the contact gap of the clapper type electromagnetic relay of the horizontal type magnetic circuit structure is also in the height direction of the relay product and is required by the on-off capacity of the product, the gap of a moving contact and a static contact must have a certain range, and the coil of the relay must also meet a certain power consumption, further reduction of the relay product in the height direction is limited, and meanwhile, the requirement that the coil provides power is considered, the further reduction of the relay product in the height direction is also limited; in addition, since the pushing block is disposed outside the iron core in the length direction, the size of the relay in the length direction is increased, which is not favorable for further miniaturization of the product.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the clapper type electromagnetic relay with the horizontal magnetic circuit structure, and the clapper type electromagnetic relay can enable the distribution among all parts of the relay to be more compact through structural improvement, thereby further reducing the size of the electromagnetic relay in the height direction and the length size of the relay, realizing the miniaturization of a relay product and having the characteristics of simple assembly and good product consistency.

The technical scheme adopted by the invention for solving the technical problems is as follows: a clapper type electromagnetic relay with a horizontal magnetic circuit structure comprises a base, a coil, an iron core, an armature, a movable spring part, a static spring part and a pushing block; the coil is horizontally arranged on the base, the iron core is matched in a through hole of the coil, the armature is arranged on the coil, and the head of the armature is matched with the head of the iron core with a pole face, which extends out of the through hole, in the iron core; the method is characterized in that: the movable spring part comprises a movable spring piece, an over travel spring piece and movable contacts, wherein the head of the movable spring piece is a bridge type spring piece, the two movable contacts are respectively arranged at two ends of the bridge type spring piece, the movable spring piece is arranged below the coil, the tail of the movable spring piece is fixed with the base so as to enable the head of the movable spring piece to swing up and down relative to the base, and the over travel spring piece is arranged at the inner side of the head of the movable spring piece and extends obliquely to the upper part of the head of the movable spring piece; the two static spring parts are respectively provided with a static contact, the two static spring parts are respectively arranged on the base, and the static contacts of the static spring parts are correspondingly matched with the movable contacts of the movable spring parts; the pushing block is connected between the head of the armature and the movable spring part, and the top end of an over travel spring of the movable spring part abuts against the bottom end of the pushing block.

The movable spring is elongated, the length of the movable spring is along the axial direction of the coil, the tail of the movable spring is fixed on the base corresponding to the inner side position of the flange at one end of the coil frame of the coil, and the head of the movable spring extends to the position, corresponding to the lower part of the pole face of the iron core, of the outer side position of the flange at the other end of the coil frame of the coil, so that the movable spring and the coil are compactly distributed.

The movable reed is formed by overlapping three leaf spring sheets, and a U-shaped bent structure is further arranged at the position, close to the tail part, of the movable reed, and fixed with the base, so that the flexibility of the movable reed is improved.

The base is provided with a first groove used for accommodating the U-shaped bent structure of the movable spring.

The overtravel reed is an independent part, one end of the overtravel reed is fixed at the position, close to the movable contact, of the movable reed in the length direction, and the other end of the overtravel reed is arranged to be in an arc structure and abuts against the bottom end of the pushing block.

The over travel reed is that two integrated into one piece are in the anti-piece of perk of the uppermost layer reed in three reeds of movable contact spring, the one end an organic whole of the anti-piece of perk is connected in the inboard position that corresponds to the movable contact of bridge type reed, the other end that the anti-piece of perk is bent into roughly the level form and is supported the bottom of promotion piece.

The pushing block is of a cage-type structure and comprises a bottom structure and side plates extending upwards from two sides of the bottom structure, the two side plates of the pushing block are respectively enclosed at two sides of the head of the iron core, which correspond to the width of the iron core, the bottom structure of the pushing block is correspondingly arranged below the head of the iron core, and the top ends of the two side plates of the pushing block are respectively matched with two sides of the head of the armature, which correspond to the width of the armature; the bottom end of the bottom structure of the pushing block is matched with the top end of the over travel reed.

The top ends of the two side plates of the pushing block are respectively provided with a second groove, two sides of the head of the armature corresponding to the width of the armature are respectively provided with a convex part outwards, and the two convex parts of the head of the armature are respectively matched in the corresponding second grooves of the top ends of the two side plates of the pushing block.

The bottom structure of the pushing block comprises a bottom plate and a plurality of reinforcing plates, and two ends of the bottom plate of the pushing block are respectively fixed with the bottom ends of two side plates of the pushing block; the reinforcing plates are distributed side by side in a roughly vertical mode, the bottom end of each reinforcing plate is fixed with the bottom plate of the pushing block, and the two ends of each reinforcing plate are respectively fixed with the two side plates of the pushing block; the top end of the over travel spring plate is abutted against the lower surface of the bottom plate of the pushing block.

The iron core is plate-shaped and is provided with a first bending part so that the head of the iron core deviates to the upper part of the position of the through hole of the coil; the two sides of the head of the armature corresponding to the width of the armature are respectively provided with a widening part, and the convex part is arranged on the outer side of the widening part.

Compared with the prior art, the invention has the beneficial effects that:

1. the coil is horizontally arranged on the base, the head of the movable spring is designed into a bridge type spring to be matched with the two static spring parts to form a double-contact structure, and the movable spring part is matched with the pushing block by adopting an over-travel spring. The structure of the invention can reduce the height of the relay product by utilizing the horizontal placement of the coil, and can ensure that the on-off capacity of the bridge type double-contact structure is larger than that of a single contact under the same voltage and current, namely, the contact clearance of the bridge type double-contact structure is reduced by half compared with that of the single contact when the bridge type double-contact structure is opened and closed under the same voltage and current, and the movement stroke of the armature can be reduced by half, thereby reducing the power consumption of the relay and further reducing the size of the electromagnetic relay in the height direction.

2. The movable spring is lengthened, the tail of the movable spring is fixed on the base corresponding to the inner side position of the flange at one end of the coil frame of the coil, and the head of the movable spring extends to the position, corresponding to the lower part of the pole face of the iron core, of the outer side position of the flange at the other end of the coil frame of the coil, so that the movable spring and the coil are compactly distributed; and a U-shaped bent structure is arranged at the position, close to the tail part of the movable spring, and fixed with the base. According to the structure, the movable spring plate has enough flexibility, so that the counter force of the movable spring plate is small, and the matched suction force can be correspondingly reduced, so that the using amount of enameled wires can be greatly reduced, the volume of a coil is reduced, and the relay is integrally miniaturized.

3. According to the invention, the overtravel reed is a reverse-tilting sheet body of the uppermost layer reed of the two reed pieces integrally formed in the three reed pieces of the movable reed, one end of the reverse-tilting sheet body is integrally connected to the inner side position of the bridge type reed corresponding to the movable contact, and the other end of the reverse-tilting sheet body is bent into a roughly horizontal shape to abut against the bottom end of the pushing block. According to the structure, the over travel reed is two anti-warping sheet bodies of the uppermost layer reed of the three reeds, the two anti-warping sheet bodies are arranged on two sides of the head of the movable reed, the ejection force of the over travel reed is larger than that of one reed, the height size of the relay can be further reduced, and therefore the purpose of product miniaturization is achieved.

4. The pushing block is designed into a cage type structure and comprises a bottom structure and side plates extending upwards from two sides of the bottom structure, the two side plates of the pushing block surround two sides of the head of the iron core corresponding to the width of the iron core respectively, and the top ends of the two side plates of the pushing block are matched with two sides of the head of the armature corresponding to the width of the armature respectively; the bottom end of the bottom structure of the pushing block is matched with the overtravel reed. According to the structure, the pushing block is matched with the head of the armature iron at two sides corresponding to the width of the iron core, the armature iron does not need to extend out from the length direction of the iron core to be matched with the pushing block, the length size of the relay can be reduced from the length direction, and the miniaturization of the relay is realized; in addition, because the matching points of the pushing block and the armature are two, the gap between the armature and the iron core can be well balanced.

The invention is further explained in detail with the accompanying drawings and the embodiments; however, the clapper type electromagnetic relay of the horizontal magnetic circuit structure of the present invention is not limited to the embodiment.

Drawings

FIG. 1 is a schematic perspective view (without a housing) of a first embodiment of the present invention;

FIG. 2 is a front view of a first embodiment of the present invention (without the housing);

FIG. 3 is a side view of a first embodiment of the invention (without the housing);

FIG. 4 is a cross-sectional view of a first embodiment of the present invention;

FIG. 5 is a schematic perspective view of a pusher block and an armature of a first embodiment of the present invention;

FIG. 6 is a front view of a pusher block coupled to an armature according to a first embodiment of the present invention;

FIG. 7 is a schematic perspective view of a push block and an over travel spring according to a first embodiment of the present invention;

FIG. 8 is a schematic perspective view (turned by an angle) of the pushing block and the over travel spring according to the first embodiment of the present invention;

FIG. 9 is a front view of a pusher block of the first embodiment of the present invention in cooperation with an over travel spring;

fig. 10 is a schematic perspective view of a movable spring portion according to a first embodiment of the present invention;

FIG. 11 is a front view of the movable spring portion of the first embodiment of the present invention;

fig. 12 is a schematic perspective view of a movable spring according to a first embodiment of the present invention;

FIG. 13 is a schematic perspective view of an over travel spring according to a first embodiment of the present invention;

FIG. 14 is a schematic perspective view of a pusher block according to a first embodiment of the present invention;

FIG. 15 is a schematic perspective view of a pushing block and a movable spring of the second embodiment of the present invention;

FIG. 16 is a front view of a pusher block of the second embodiment of the present invention in cooperation with a movable spring portion;

FIG. 17 is a schematic perspective view of the movable spring plate and the overtravel spring plate according to the second embodiment of the present invention;

FIG. 18 is a front view of the mating of the movable spring and overtravel spring according to the second embodiment of the present invention;

fig. 19 is a schematic perspective view of a pusher block according to a second embodiment of the present invention.

Detailed Description