CN214378246U - Electromagnetic relay - Google Patents

Abstract

The utility model provides an electromagnetic relay, including the base, set up quiet reed, magnetic circuit part on the base and respectively the electricity connect a plurality of leading-out terminals of coil and quiet reed of magnetic circuit part, leading-out terminal is hard connecting terminal, in leading-out terminal and the base, one of them party local arch has spacing convex part, and the local sunken correspondence of the other party the spacing concave part of spacing convex part, realize spacingly through the grafting cooperation of spacing convex part and spacing concave part between leading-out terminal and the base. The leading-out terminal adopts a hard connecting terminal to replace a soft connecting wire, and in the matching with the base, the limit is realized through the insertion matching of the limit convex part and the limit concave part. The automatic assembly can be well realized, so that the automatic assembly requirements of manufacturing and clients are met.

Description

Electromagnetic relay

Technical Field

The utility model relates to a relay field, concretely relates to electromagnetic relay.

Background

An electromagnetic relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), and is generally applied to an automatic control circuit, and actually is an automatic switch for controlling a larger current and a higher voltage by using a smaller current and a lower voltage. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

In an existing electromagnetic relay for an automobile, lead-out ends (a signal detection end and a coil lead-out end) of the electromagnetic relay all adopt soft connection terminals, and for example, in a high-current relay for monitoring a load terminal band signal disclosed in CN201910338696 in the prior art, the connection and the lead-out are performed in a soft connection wire mode. Therefore, the method is not beneficial to automatic assembly and cannot meet the requirements of manufacturing and automatic assembly of clients.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides an electromagnetic relay can the above-mentioned problem of effectual solution.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

an electromagnetic relay comprises a base, a static reed, a magnetic circuit part and a plurality of leading-out terminals, wherein the static reed and the magnetic circuit part are arranged on the base, the leading-out terminals are connected with a coil of the magnetic circuit part and the static reed respectively, the leading-out terminals are all hard connecting terminals, a limiting convex part is locally protruded on one of the leading-out terminals and the base, a limiting concave part corresponding to the limiting convex part is locally sunken on the other one of the leading-out terminals and the base, and the leading-out terminals and the base are limited through the insertion and connection matching of the limiting convex part and the limiting concave part.

Further, the limit convex part is formed on the leading-out terminal, and the limit concave part is formed on the base.

Furthermore, the number of leading-out terminals is four, including two signal detection terminals of two static reeds of electricity connection respectively and two coil leading-out terminals of electricity connection coil both ends respectively, signal detection terminal and coil leading-out terminal set up side by side, and two signal detection terminals are located the intermediate position, and two coil leading-out terminals are located two sides of two signal detection terminals, are formed with four side by side on the base and are the interval setting spacing concave part, four spacing convex parts of leading-out terminal are pegged graft in proper order and are cooperated in four spacing concave parts.

Further, a fixed electrical connection is formed between the signal detection terminal and the static reed.

Furthermore, a fixing convex part is locally protruded on the coil leading-out terminal, a fixing concave part corresponding to the fixing convex part is sunken on the base, and the coil leading-out terminal is fixedly inserted into the fixing concave part of the base through the fixing convex part.

Further, the extension direction of the lead-out terminals arranged side by side is defined as the width direction, and the limit convex part of the coil lead-out terminal forms interference fit with the limit concave part in the width direction.

Furthermore, the leading-out terminal comprises a switching part and a leading-out part, the switching part is used for electrically connecting corresponding static reeds or coils, the leading-out part is used for connecting an external connector, the switching part and the leading-out part are of an integrally formed structure or of a split structure, and the switching part is welded and fixed on the leading-out part to realize fixed electrical connection.

Further, the switching portion of the leading-out terminal of electricity connection coil is the bending structure of L shape, including first support arm and the second support arm that looks perpendicular set up, first support arm is located the front end of magnetic circuit part and connects the leading-out portion of this leading-out terminal electrically, first support arm is connected to the second support arm electricity and extends to the side of magnetic circuit part, be equipped with the coil terminal on the coil as the wiring end, the coil terminal is located the side of magnetic circuit part and electricity is connected the second support arm, still protruding the anti-withdrawal barricade that has corresponding first support arm on base and/or the magnetic circuit part.

Furthermore, still include dustcoat and connector, the dustcoat covers the magnetic circuit part and is fixed in on the base, the connector sets up between dustcoat and base, leading-out terminal extends to in the connector.

Further, the periphery of connector is formed with spacing step, the medial surface butt of spacing step in the lateral surface of base, just the base is provided with the pothook and passes through the pothook joint on spacing step, the dustcoat cup joints on spacing step, the connector medial surface is protruding still to have the flange, the flange butt is on magnetic circuit part.

Through the utility model provides a technical scheme has following beneficial effect:

the leading-out terminal adopts a hard connecting terminal to replace a soft connecting wire, and in the matching with the base, the limit is realized through the insertion matching of the limit convex part and the limit concave part. The automatic assembly can be well realized, so that the automatic assembly requirements of manufacturing and clients are met.

Drawings

Fig. 1 is an external view schematically showing an electromagnetic relay according to a first embodiment;

fig. 2 is a partially exploded view of an electromagnetic relay according to a first embodiment;

fig. 3(a) is a plan view of an electromagnetic relay according to a first embodiment;

FIG. 3(B) is a cross-sectional view taken along line C-C of FIG. 3 (A);

FIG. 3(C) is an enlarged schematic view of region a in FIG. 3 (B);

FIG. 3(D) is an exploded view of the structure shown in FIG. 3 (C);

FIG. 3(E) is an enlarged schematic view of region B in FIG. 3 (B);

FIG. 4(A) is a schematic view showing a coupling structure of a base and a stationary spring plate according to an embodiment;

FIG. 4(B) shows the structure of FIG. 4(A) at another angle;

fig. 5 is a schematic view showing a structure of mounting a lead-out terminal on the basis of fig. 4 (a);

FIG. 6 shows the structure of FIG. 5 shown at another angle;

FIG. 7 is a schematic structural view of the assembled connector shown in FIG. 5;

FIG. 8 is a top view of the structure of FIG. 5;

FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8;

FIG. 10 is a cross-sectional view taken along line B-B of FIG. 8;

fig. 11 is a schematic view showing an assembly structure of a magnetic circuit member and a coil lead-out terminal according to the first embodiment;

fig. 12 is a schematic layout diagram of the signal detection terminals and the coil lead-out terminals in the first embodiment;

fig. 13 is a schematic structural diagram of a signal detection terminal according to a first embodiment;

FIG. 14 is a schematic structural diagram of a coil lead-out terminal according to an embodiment;

FIG. 15(A) is a schematic structural view of a housing according to a first embodiment;

FIG. 15(B) is a schematic structural view of the housing at another angle according to the first embodiment;

FIG. 16(A) is a schematic view of an assembly structure of the housing and the connecting head according to the first embodiment;

FIG. 16(B) is an enlarged schematic view of the region c in FIG. 16 (A);

fig. 17 is a schematic diagram showing the arrangement of the signal detection terminals and the coil lead-out terminals in the second embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Example one

Referring to fig. 1 to 16(B), an electromagnetic relay according to the present embodiment includes a base 10, an outer cover 40, a connector 50, a fixed spring piece 20 disposed on the base 10, a magnetic circuit member 30, and a plurality of terminals (e.g., a coil terminal 70 electrically connected to a coil of the magnetic circuit member 30 and a signal detection terminal 60 electrically connected to the fixed spring piece 20, described below) electrically connected to the coil of the magnetic circuit member 30 and the fixed spring piece 20, where the specific structure of the magnetic circuit member 30 and the connection relationship with the fixed spring piece 20 are the prior art, for example, the magnetic circuit member 30 is a member that is composed of an iron core, a yoke, an armature, a coil, a movable spring piece, a movable contact, a fixed contact and the like to realize a relay function, and the fixed spring piece 20 extends into the magnetic circuit member 30 to fix the fixed contact and also serves as a terminal for leading out of the fixed contact of the magnetic circuit member 30; please refer to the prior CN201910338696 for a high current relay with load terminal band signal monitoring, wherein the magnetic circuit component 30 is a movement part in the publication, and the detailed description is omitted here.

The leading-out terminals are all hard connecting terminals, namely connecting terminals prepared by adopting hard conductors. In the leading-out terminal and the base 10, a limit convex part is locally protruded on one part, a limit concave part corresponding to the limit convex part is locally sunken on the other part, and the leading-out terminal and the base 10 are limited by the insertion fit of the limit convex part and the limit concave part. Specifically, in this embodiment, the limiting convex portion is formed on the leading-out terminal, and the limiting concave portion is specifically a groove (of course, in other embodiments, the limiting concave portion may also be a through hole), and is formed on the base 10, that is, the limiting concave portion 11 formed on the base 10. The leading-out terminal is inserted and matched in the limiting concave part 11 of the base 10 through the limiting convex part, and further forms limiting matching with the base 10.

The leading-out terminal adopts a hard connecting terminal to replace a soft connecting wire, and in the matching with the base 10, the limit is realized through the insertion matching of the limit convex part and the limit concave part. The automatic assembly can be well realized, so that the automatic assembly requirements of manufacturing and clients are met.

Meanwhile, the base 10 is locally recessed to form a limiting concave part 11 which is matched with a locally raised limiting convex part on the leading-out terminal in an inserting mode, so that on the basis of limiting, the recessed area of the base 10 is reduced as much as possible, the supporting strength of the base 10 under the condition of the thinnest thickness is guaranteed, and the weight of the relay is reduced.

Of course, in other embodiments, the limiting concave part may also be formed on the leading-out terminal, and the limiting convex part is formed on the base 10, that is, the limiting convex part is formed by locally protruding the base 10, and is in limiting fit with the limiting concave part on the leading-out terminal. In this way, even in a mode in which the base 10 partially protrudes to form the stopper protrusion, the protruding portion of the base 10 is reduced as much as possible to reduce the weight of the relay while the stopper can be achieved.

The cover 40 covers the magnetic circuit member 30 and is fixed to the base 10 to protect the magnetic circuit member 30. Connector 50 sets up between dustcoat 40 and base 10, the leading-out terminal extends to in the connector 50, connector 50 is used for the grafting of cooperation connector, and when the connector inserted in connector 50 promptly, can carry out the electricity with the leading-out terminal that extends to in the connector 50 and be connected, and the direction is good, protection leading-out terminal that also can be fine. Of course, in other embodiments, the structure of the outer cover 40 or the connection head 50 may not be required.

Further, in this embodiment, the number of the lead terminals is four, and the lead terminals include two signal detection terminals 60 electrically connected to the two stationary spring pieces 20 respectively and two coil lead terminals 70 electrically connected to two ends of the coil respectively, the signal detection terminals 60 and the coil lead terminals 70 are arranged side by side, the two signal detection terminals 60 are located at the middle position, the two coil lead terminals 70 are located at two sides of the two signal detection terminals 60, four spacing concave portions 11 arranged at intervals are formed on the base 10 side by side, and the spacing convex portions of the four lead terminals (i.e., the spacing convex portions 601 of the signal detection terminals 60 and the spacing convex portions 701 of the coil lead terminals 70) are inserted into the corresponding spacing concave portions 11. In the relay layout, the terminals of the coil are generally located at the side ends (as shown in fig. 11, the terminals of the coil are coil terminals 32, and the coil terminals 32 are located at the side ends of the magnetic circuit member 30), so that the signal detection terminals 60 electrically connected to the stationary spring pieces 20 are disposed at the middle positions, and the coil lead-out terminals 70 electrically connected to the coil are disposed at the two sides, and the layout is reasonable, and the lead-out terminals are not staggered. Of course, in other embodiments, the number and layout of the lead terminals are not limited thereto.

Further, in this embodiment, each of the lead-out terminals includes an adapting portion and a lead-out portion, for example, the signal detection terminal 60 includes a first adapting portion 61 and a first lead-out portion 62, the first adapting portion 61 is connected to the static spring piece 20, and the first lead-out portion 62 extends into the connector 50 for connecting with a connector; the coil lead-out terminal 70 includes a second adapter portion 71 and a second lead-out portion 72, the second adapter portion 71 is connected with the coil, and the second lead-out portion 72 extends into the connector 50 for connecting with the connector.

Specifically, the first adapting portion 61 and the first lead-out portion 62 of the signal detection terminal 60 are integrally formed, and the second adapting portion 71 and the second lead-out portion 72 of the coil lead-out terminal 70 are also integrally formed, so that the manufacturing is convenient.

The first transfer portion 61 and the stationary spring plate 20 are electrically connected to each other (specifically, the first transfer portion is fixed by riveting, but in other embodiments, the fixing manner is not limited thereto), so that the signal detection terminal 60 can be well fixed on the base 10, and the signal detection terminal 60 is prevented from being pulled out when the male end of the connector is pulled out. Meanwhile, the signal detection terminal 60 is designed to be a hard connection terminal, so that when the connector is inserted, the first lead-out part 62 can be well supported, and the anti-return effect of the signal detection terminal 60 is good.

Specifically, the fixed electrical connection means that the two components form a fixed connection and an electrical connection, such as the first transfer portion 61 and the stationary spring plate 20, which form a fixed connection by riveting, and the first transfer portion 61, the stationary spring plate 20 and the riveting are all conductive, and the first transfer portion 61 and the stationary spring plate 20 naturally form a conductive electrical connection after forming a fixed connection.

At the riveting position of the first transfer part 61 and the static spring plate 20, the surface of the base 10 is recessed with a limiting groove 14 for exposing the surface of the static spring plate 20, meanwhile, the shape of the limiting groove 14 is matched with the shape of the riveting end of the first transfer part 61, and the riveting end of the first transfer part 61 is limited in the limiting groove 14 and is riveted and fixed with the static spring plate 20. So set up, on guaranteeing to present good electrical contact's basis, can be better carry out further spacing fixed to signal detection terminal 60, the effect is better. Of course, in other embodiments, this is not limiting.

Furthermore, when the relay is produced and assembled, the leading-out terminal is firstly positioned on the base 10, and then the magnetic circuit part 30 and other components are assembled, so that the coil leading-out terminal 70 can be positioned and fixed only through the limit matching of the limit convex part 701 and the limit concave part 11 under the condition that the coil leading-out terminal is not electrically connected with the coil of the magnetic circuit part 30, but the limit matching area of the limit convex part 701 and the limit concave part 11 is small, and the terminal is easy to fall off in the transmission process of an assembly line. In order to solve the problem, in this embodiment, a fixing protrusion 702 is further protruded on a part of the coil leading-out terminal 70, a fixing recess 15, specifically a fixing groove, corresponding to the fixing protrusion 702 is recessed on the base 10, and the coil leading-out terminal 70 is fixedly inserted into the fixing recess 15 of the base 10 through the fixing protrusion 702 to realize fixing assembly. The coil lead-out terminals 70 are prevented from falling off from the base 10 during the assembly process. Of course, in other embodiments, the limit convex part 701 and the limit concave part 11 may be fixedly engaged at the same time of the limit engagement, for example, the extending direction of the leading-out terminals arranged side by side is defined as the width direction (the extending direction of the line a-a in fig. 8 is the width direction), the limit convex part 701 of the coil leading-out terminal 70 forms an interference fit with the limit concave part 11 in the width direction, and the positioning and fixing are realized by the interference fit, so that the problem of falling-off can be solved.

The switching portion (i.e., the second switching portion 71 of the coil outgoing terminal 70) connected with the outgoing terminal of the coil is of an L-shaped bent structure, and includes a first arm 711 and a second arm 712 that are vertically arranged, the first arm 711 is located at the front end of the magnetic circuit component 30 and electrically connected with the outgoing portion of the outgoing terminal (i.e., the second outgoing portion 72 of the coil outgoing terminal 70), and the second arm 712 is electrically connected with the first arm 711 and extends to the side end of the magnetic circuit component 30 to electrically connect the coil, specifically, as shown in fig. 11, the coil terminal 32 of the coil has a slot, and when electrically connected with the second switching portion 71, the slot is plugged into the second arm 712 of the second switching portion 71, so as to achieve electrical connection.

In order to ensure that the coil terminal 32 is more stably and reliably contacted with the second arm 712 of the second adapter 71, in this embodiment, a convex strip 703 is convexly arranged on the second arm 712 of the second adapter 71, and the arrangement of the convex strip 703 can well increase the reliability and stability of the electrical connection between the coil lead-out terminal 70 and the coil terminal 32.

Meanwhile, since the coil terminal 32 is not fixedly connected to the second arm 712 of the second adaptor portion 71, the contact point cannot give a supporting force to the coil leading-out terminal 70, and in order to ensure that the coil leading-out terminal 70 is sufficiently supported when the connector is inserted, in this embodiment, anti-receding walls corresponding to the first arm 711, such as the anti-receding wall 13 on the base 10 and the anti-receding wall 31 on the magnetic circuit member 30, are protruded on both the base 10 and the magnetic circuit member 30 (specifically, on the coil frame of the magnetic circuit member 30). When the connector is inserted, the coil leading-out terminal 70 is pushed inwards and tends to retreat inwards, and at this time, the coil leading-out terminal 70 can be prevented from retreating by abutting against the retreat-preventing retaining walls 13 and 31, so that the contact between the coil leading-out terminal 70 and the connector is more reliable. Of course, in other embodiments, the anti-retreat wall 13 may be only provided on the base 10 or the anti-retreat wall 31 may be only provided on the coil rack of the magnetic circuit component 30, which may also have a certain anti-retreat effect.

More specifically, the fixing protrusion 702 of the coil lead-out terminal 70 is fitted into the fixing recess 15 of the base 10, so that the coil lead-out terminal 70 is not pulled out when the connector is pulled out.

Meanwhile, in order to ensure the stability of the connector 50, the specific method in this embodiment is as follows: the periphery of connector 50 is formed with spacing step 51, as shown in fig. 3(B), fig. 3(C), fig. 3(D), the medial surface 501 butt in the lateral surface 101 of base 10 of spacing step 51, just base 10 is provided with pothook 12 and through pothook 12 joint on spacing step 51, specifically, spacing step 51 is formed with the pothook cooperation portion 511 with pothook 12 complex, pothook 12 joint is on the pothook cooperation portion 511 of spacing step 51. The outer cover 40 is sleeved on the outer side of the limiting step 51, and a flange 52 is further protruded on the inner side surface of the connector 50, as shown in fig. 3(E), the flange 52 abuts against the magnetic circuit part 30. When the connector is inserted, the connector 50 receives an inward thrust, and the inner side 501 of the limiting step 51 abuts against the outer side 101 of the base 10 and the flange 52 abuts against the magnetic circuit component 30, so that the connector 50 can be well limited, and the connector 50 is prevented from sinking or retreating. When the connector is pulled out, the connector 50 is pulled outwards, and the clamping connection between the hook 12 of the base 10 and the limiting step 51 and the clamping connection between the outer cover 40 and the limiting step 51 can limit the connector 50 well, so that the connector 50 is prevented from being pulled out and dislocated outwards. So set up, the stability of connector 50 is good. Of course, in other embodiments, the fitting structure of the connector is not limited thereto.

Specifically, as shown in fig. 15(a) to 16(B), a limiting groove 401 is formed on the outer cover 40, when the outer cover 40 is sleeved with the limiting step 51, the limiting step 51 is also inserted into the limiting groove 401 to achieve good limiting, and the assembly of the connector 50 is more accurate. Of course, the present invention is not limited to this embodiment in other embodiments.

Example two

The electromagnetic relay provided in this embodiment has substantially the same structure as the electromagnetic relay provided in the first embodiment, except that: referring to fig. 17, in the present embodiment, the first switch portion 61 and the first lead portion 62 of the signal detection terminal 60 are of a split structure, and the first switch portion 61 and the first lead portion 62 are fixedly and electrically connected by a fixed connection structure; similarly, the second adapter portion 71 and the second lead-out portion 72 of the coil lead-out terminal 70 are of a split structure, and the second adapter portion 71 and the second lead-out portion 72 are fixedly connected through a fixed connection structure; fixed connection structure is like welded fastening structure, forms fixed electricity through welded fastening's mode promptly and connects, adopts split type structure, can adjust the interval between the leading-out terminal according to the inequality demand of connector PIN interval, satisfies different customer demands, improves product compatibility. If the adapter part is firstly fixedly assembled, and then the leading-out parts are fixed to the corresponding adapter parts, the distance between the leading-out parts can be adjusted; or, the distance between the leading-out parts is adjusted and the leading-out parts are fixed on the base, and then the switching parts are correspondingly arranged, and the like.

Specifically, the limit protrusion 601 of the signal detection terminal 60 may be formed by independently extending the first transfer portion 61, or may be formed by independently extending the first lead portion 62; or alternatively, the first transfer portion 61 and the first lead portion 62 may be formed as an extension portion. Similarly, the limiting protrusion 701 of the coil lead-out terminal 70 may be formed by independently extending the second adaptor portion 71, or may be formed by independently extending the second lead-out portion 72; or the extension parts of the second adaptor part 71 and the second lead-out part 72.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides an electromagnetic relay, includes the base, sets up static reed, magnetic circuit part on the base and connects a plurality of leading-out terminals of coil and static reed of magnetic circuit part, its characterized in that respectively electrically: the leading-out terminal is a hard connecting terminal, a limit convex part is locally protruded on one of the leading-out terminal and the base, a limit concave part corresponding to the limit convex part is locally sunken on the other one of the leading-out terminal and the base, and the leading-out terminal and the base are limited by the insertion fit of the limit convex part and the limit concave part.

2. An electromagnetic relay according to claim 1, characterized in that: the limiting convex part is formed on the leading-out terminal, and the limiting concave part is formed on the base.

3. An electromagnetic relay according to claim 2, characterized in that: the number of the leading-out terminals is four, the leading-out terminals comprise two signal detection terminals which are respectively and electrically connected with two static reeds and two coil leading-out terminals which are respectively and electrically connected with two ends of a coil, the signal detection terminals and the coil leading-out terminals are arranged side by side, the two signal detection terminals are located in the middle, the two coil leading-out terminals are located on two sides of the two signal detection terminals, four limiting concave parts which are arranged at intervals are formed on the base side by side, and limiting convex parts of the four leading-out terminals are sequentially spliced and matched in the four limiting concave parts.

4. An electromagnetic relay according to claim 3, characterized in that: and the signal detection terminal and the static reed form fixed electric connection.

5. An electromagnetic relay according to claim 3, characterized in that: the coil leading-out terminal is also provided with a fixing convex part in a local protruding mode, the base is provided with a fixing concave part corresponding to the fixing convex part in a recessed mode, and the coil leading-out terminal is fixedly inserted into the fixing concave part of the base through the fixing convex part.

6. An electromagnetic relay according to claim 3, characterized in that: the extension direction of the leading-out terminals arranged side by side is defined as the width direction, and the limiting convex part of the coil leading-out terminal forms interference fit with the limiting concave part in the width direction.

7. An electromagnetic relay according to claim 1 or 3, characterized in that: the leading-out terminal comprises a switching part and a leading-out part, the switching part is used for electrically connecting corresponding static reeds or coils, the leading-out part is used for an external connector, and in the same leading-out terminal, the switching part and the leading-out part are of an integrally formed structure or of a split structure, and the switching part is welded and fixed on the leading-out part to realize fixed electrical connection.

8. An electromagnetic relay according to claim 7, characterized in that: the switching portion of the leading-out terminal of the electric connection coil is the bending structure of L shape, including first support arm and the second support arm that sets up perpendicularly mutually, first support arm is located the front end of magnetic circuit part and the leading-out portion of this leading-out terminal is connected to the electricity, first support arm is connected and is extended to the side of magnetic circuit part to the second support arm electricity, be equipped with the coil terminal on the coil as the wiring end, the coil terminal is located the side of magnetic circuit part and electricity is connected the second support arm, still protruding the anti-withdrawal barricade that has corresponding first support arm on base and/or the magnetic circuit part.

9. An electromagnetic relay according to claim 1, characterized in that: still include dustcoat and connector, the dustcoat covers the magnetic circuit part and is fixed in on the base, the connector sets up between dustcoat and base, leading-out terminal extends to in the connector.

10. An electromagnetic relay according to claim 9, characterized in that: the periphery of connector is formed with spacing step, the medial surface butt of spacing step in the lateral surface of base, just the base is provided with the pothook and passes through the pothook joint on spacing step, the dustcoat cup joints in the outside of spacing step, the connector medial surface is protruding still has the flange, the flange butt is on magnetic circuit part.

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