JP7120084B2 - magnetic contactor - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic contactor that opens and closes a current path by connecting and disconnecting a pair of fixed and movable contacts.

A magnetic contactor includes a contact mechanism having a fixed contact and a movable contact, and an electromagnet unit that drives the contact mechanism.
The contact mechanism accommodates a pair of fixed contacts and an elongated movable contact in a container made of an insulating material, and the movable contact extends longitudinally in the opposite direction of the pair of fixed contacts. In addition, movable contacts are formed at both ends in the longitudinal direction.
By integrating the contact mechanism with the electromagnet unit, the movable shaft that supports the center of the movable contact is connected to the electromagnet unit, and when the movable contact advances and retreats due to the driving of the electromagnet unit, the movable contact of the contact mechanism is fixed. It is possible to open and close the current path by contacting and separating from the contact.

The movable contact that advances and retreats by driving the electromagnet unit tends to rotate around the movable shaft, which is not preferable because the opposing relationship between the movable contact and the fixed contact is shifted. Normally, when the movable contact tries to rotate, the width direction end surface of the movable contact comes into contact with the inner wall of the housing of the contact mechanism, thereby restricting the rotation of the movable contact. However, when the movable contact advances and retreats, sliding wear occurs between the movable contact and the inner wall of the storage container. There is
Therefore, in Japanese Unexamined Patent Application Publication No. 2002-100001, a sliding guide is attached to the contact mechanism, and a plurality of sliding guides are provided inside the container so as to face each other at both end surfaces in the width direction of the movable contact and extend along the forward/backward direction of the movable contact. A metal guide piece is arranged.

This sliding guide is a member obtained by stamping and bending a metal plate, and includes a base portion and four guide pieces bent from the periphery of the base portion. Further, a plurality of through-holes for inserting the guide pieces are formed in the bottom of the storage container. A plurality of guide pieces are inserted through through-holes in the bottom of the storage container, the guide pieces are arranged inside the storage container, the base plate portion is arranged in the bottom of the storage container, and the sliding guide is attached.
As a result, when the movable contact advances and retreats, the width direction of the movable contact comes into contact with the guide piece arranged inside the container, so that it is possible to avoid poor conduction and ensure the reliability of the current path.

Here, when the contact mechanism and the electromagnet unit are integrally assembled, a cushioning member made of an elastic material such as synthetic rubber is superimposed on the base portion of the sliding guide that is in contact with the bottom of the storage container. The contact mechanism and the electromagnet unit are integrated with the substrate portion and the buffer member sandwiched between the bottom of the container and the contact mechanism side member of the electromagnet unit.
The cushioning member presses the base against the bottom of the container to securely fix the sliding guide to the container, and also absorbs the impact transmitted to the container when the movable contact of the contact mechanism contacts and separates from the fixed contact. are absorbing.

JP 2014-116257 A

However, mounting the buffer member when integrally assembling the contact mechanism and the electromagnet unit increases the number of parts and the number of assembling steps, which raises a problem in terms of manufacturing cost.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a function of fixing the sliding guide and a function of absorbing the impact of the container when the movable contact of the contact mechanism contacts and separates from the fixed contact. , to provide an electromagnetic contactor capable of reducing the number of parts and the number of assembly man-hours, thereby reducing the manufacturing cost.

In order to achieve the above object, an electromagnetic contactor according to one aspect of the present invention includes a pair of stationary contacts and an elongated pair of stationary contacts that can be brought into contact with and separated from the pair of stationary contacts in a storage container made of an insulating material. An electromagnet unit that drives the movable contactor of the contact mechanism in which the movable contactor is housed in the forward and backward direction in which the movable contactor contacts and separates from the pair of fixed contactors, and a rotational displacement when the movable contactor moves forward and backward. and a regulating sliding guide. The sliding guide is made of a metal material, and includes a substrate portion, a plurality of guide pieces extending in a direction orthogonal to the substrate portion, and protruding from the substrate portion in a direction opposite to the direction in which the guide pieces extend. and a plurality of elastic support pieces. The plurality of guide pieces are arranged on both sides in the width direction of the movable contact within the container of the storage container. The base plate and the plurality of elastic support pieces are arranged at the bottom of the container, and the plurality of elastic support pieces are elastically deformed by being sandwiched between the container bottom and the container-side member of the electromagnet unit facing the container bottom. , the elastic restoring force of the plurality of elastic supporting pieces acts as a force for pressing the substrate portion against the bottom side of the container.

According to the electromagnetic contactor according to the present invention, it has the function of fixing the sliding guide and the function of absorbing the impact of the container when the movable contact of the contact mechanism contacts and separates from the fixed contact, and at the same time, the number of parts and the number of assembly man-hours can be reduced. It is possible to reduce the manufacturing cost by reducing the amount.

It is a sectional view showing an electromagnetic contactor provided with a slide guide of a 1st embodiment. It is a perspective view which shows the shape of the insulating cylinder part which comprises the electromagnetic contactor of 1st Embodiment. It is a figure which shows the insulating cylinder part of 1st Embodiment, and the sliding guide with which an insulating cylinder part is mounted|worn. It is a figure which shows the shape of the sliding guide of 1st Embodiment. FIG. 10 is a diagram showing the sliding guide of the first embodiment attached to the insulating cylinder when the contact mechanism and the electromagnet unit are integrally incorporated; It is a figure which shows the shape of the sliding guide of 2nd Embodiment. It is a figure which shows the shape of the sliding guide of 3rd Embodiment. It is a figure which shows the shape of the sliding guide of 4th Embodiment. It is a figure which shows the shape of the sliding guide of 5th Embodiment.

Next, first to fifth embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between thickness and planar dimension, the ratio of thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined with reference to the following description. In addition, it is a matter of course that there are portions with different dimensional relationships and ratios between the drawings.
In addition, the first to fifth embodiments shown below exemplify apparatuses and methods for embodying the technical idea of the present invention. The shape, structure, arrangement, etc. are not specified as follows. Various modifications can be made to the technical idea of the present invention within the technical scope defined by the claims.

[Electromagnetic contactor of the first embodiment]
An electromagnetic contactor 1 according to a first embodiment of the present invention shown in FIGS.
The contact mechanism 2 is housed in a contact housing case 4. The contact housing case 4 is made up of a metallic rectangular cylinder 5 and an insulating material such as ceramic or synthetic resin that closes the upper end of the rectangular cylinder 5. and an insulating substrate 6 formed thereon.

The flange portion 7 formed at the bottom of the rectangular tube 5 is sealed and fixed to the upper magnetic yoke 21 of the electromagnet unit 20 . Through holes 9 and 10 are formed in the insulating substrate 6 at predetermined intervals.
The contact mechanism 2 includes a pair of stationary contacts 13 and 14 (hereinafter referred to as a first stationary contact 13 and a second stationary contact 14) fixed to the insulating substrate 6 via conductor portions 11 and 12, A movable contact 15 is provided in which first and second movable contacts 15a and 15b face first and second fixed contacts 13a and 14a provided on the first and second fixed contacts 13 and 14. .

The movable contact 15 is supported by a connecting shaft 23 fixed to a movable plunger 22 of the electromagnet unit 20 , and a through hole 24 through which the connecting shaft 23 is inserted is formed in the central portion of the movable contact 15 .
A flange portion 25 protruding outward is formed at the central portion of the connecting shaft 23 in the longitudinal direction. The central lower portion is brought into contact with the flange portion 25, and the contact spring 26 is inserted from the upper portion of the connecting shaft 23. As shown in FIG. By fixing the upper end of the contact spring 26 with a C ring 27 fixed to the upper end of the connecting shaft 23 , the contact spring 26 applies a predetermined biasing force to the movable contact 15 .

An insulating cylindrical portion 18 formed in the shape of a bottomed square tube is disposed on the inner peripheral surface of the square tube body 5 of the contact storage case 4 . The insulating tube portion 18 is formed by molding an insulating material such as a synthetic resin, and has an insulating function of blocking the influence of the arc on the metallic rectangular tube 5 .
The electromagnet unit 20 has a U-shaped magnetic yoke 28 that is flat when viewed from the side. are placed.
The spool 30 includes a central cylindrical portion 31 through which the fixed plunger 29 is inserted, a lower flange portion 32 protruding radially outward from the lower end of the central cylindrical portion 31, and radially outward from the upper end of the central cylindrical portion 31. and an upper flange portion 33 that protrudes outward. An exciting coil 34 is wound in a housing space formed by the central cylindrical portion 31 , the lower flange portion 32 and the upper flange portion 33 .

The upper magnetic yoke 21 fixed to the upper open end of the magnetic yoke 28 has a through hole 21a formed in the center thereof, the through hole 21a facing the central cylindrical portion 31 of the spool 30. As shown in FIG.
The upper portion of the fixed plunger 29 inserted into the central cylindrical portion 31 of the spool 30 is covered with a cap 35 formed in a cylindrical shape with a bottom. The flange portion 35a is sealingly joined to the lower surface of the upper magnetic yoke 21. As shown in FIG. As a result, a sealed container is formed in which the cap 35 communicates with the upper magnetic yoke 21 via the through hole 21a.

A movable plunger 22 having a return spring 36 disposed at the bottom is inserted into the cap 35 so as to be vertically slidable. The movable plunger 22 has a peripheral flange 22a projecting radially outward from the upper end projecting upward from the upper magnetic yoke 21. As shown in FIG.
An annular driving permanent magnet 37 is fixed to the upper surface of the upper magnetic yoke 21 so as to surround the peripheral flange 22 a of the movable plunger 22 . The driving permanent magnet 37 is magnetized in the vertical direction, that is, in the thickness direction, such that the upper end side is the N pole and the lower end side is the S pole.
An auxiliary yoke 39 having the same outer shape as the driving permanent magnet 37 and having a through hole 38 with an inner diameter smaller than the outer diameter of the peripheral collar portion 22a of the movable plunger 22 is fixed to the upper end surface of the driving permanent magnet 37. A peripheral collar portion 22 a of the movable plunger 22 is in contact with the lower surface of the yoke 39 .

The movable contactor 15 constituting the contact mechanism 2 is a conductive plate elongated in the left-right direction of FIG. 1 and made of a conductive material. A first movable contact 15a and a second movable contact 15b are formed on the lower surface of both ends of the .
The first fixed contact 13 and the second fixed contact 14 that constitute the contact mechanism 2 are C-shaped conductive plates in a side view made of a conductive material. They are spaced apart and fixed to the insulating substrate 6 via the conductor portions 11 and 12 .

The first fixed contact 13 is arranged on the first movable contact 15a side of the movable contact 15, faces the first movable contact 15a of the movable contact 15 from below, and faces the first fixed contact 13a upward. A first conductive plate portion 13b provided, a second conductive plate portion 13c bent from the end of the first conductive plate portion 13b away from the movable contact 15 and extending upward, and a second conductive plate portion a third conductive plate portion 13d that is bent from the upper end of the movable contact 13c and extends above the movable contact 15;
The second fixed contact 14 is arranged on the side of the second movable contact 15b of the movable contact 15, faces the second movable contact 15b of the movable contact 15 from below, and connects the second fixed contact 14a. A first conductive plate portion 14b provided on the upper surface, a second conductive plate portion 14c bent upward from the end of the first conductive plate portion 14b away from the movable contact 15, and a second conductive plate portion 14c. and a third conductive plate portion 14 d that is bent from the upper end of the plate portion 14 c and extends above the movable contact 15 .

The first fixed contactor 13 is fitted with an insulating cover 16 made of synthetic resin that restricts the generation of arcs, and the second stationary contactor 14 is also fitted with an insulating cover 17 made of synthetic resin that restricts the generation of arcs. It is As a result, only the first fixed contact 13 a is exposed on the inner peripheral surface of the first fixed contact 13 , and only the second fixed contact 14 a is exposed on the inner peripheral surface of the second fixed contact 14 .
In addition, a C-shaped magnetic body as viewed from the top so as to cover the inner surface of the second conductive plate portion 13c of the first fixed contact 13 and the inner surface of the second conductive plate portion 14c of the second fixed contact 14 Plates 19a and 19b are mounted. Thereby, the magnetic field generated by the current flowing through the first conductive plate portions 13b and 14b can be shielded.

In the release position of the movable contactor 15, the movable contacts 15a, 15a positioned at both ends in the longitudinal direction and the fixed contacts 13a, 14a of the fixed contacts 13, 14 are spaced apart at a predetermined distance. Become.
Further, the movable contactor 15 is set so that the movable contacts 15a and 15b contact the fixed contacts 13a and 14a of the fixed contacts 13 and 14 with a predetermined contact pressure by the contact spring 26 at the closing position. .

The contact mechanism 2 is composed of the upper magnetic yoke 21, the contact housing case 4 joined to the upper surface of the upper magnetic yoke 21, and the cap 35 joined to the lower surface of the upper magnetic yoke 21 and accommodating the movable plunger 22 therein. , the connecting shaft 23 and the movable plunger 22 are contained in a sealed chamber. Gases such as hydrogen gas, nitrogen gas, mixed gas of hydrogen and nitrogen, air, _SF6 , etc. are enclosed in the hermetically sealed contact storage case 4 .
Here, a sliding guide 50 that extends along the advancing and retreating direction of the movable contact 15 and regulates the rotational displacement of the movable contact is arranged in the insulating cylindrical portion 18 arranged inside the contact housing case 4 . As shown in FIG. 1, between the bottom plate portion 41 of the insulating cylinder portion 18 and the auxiliary yoke 39, the base plate portion 51 and the elastic support pieces 58 and 59 that constitute the sliding guide 50 are arranged.

Next, the configuration and arrangement of the slide guide 50 will be described with reference to FIGS. 2 to 5. FIG.
As shown in FIG. 2 , the insulating tube portion 18 is composed of a square tube portion 40 and a bottom plate portion 41 that closes the lower surface side of the square tube portion 40 . Two sets of a pair of wall portions 42 and 43 facing in the short side direction are formed in the longitudinal direction inside the rectangular tube portion 40 . The two sets of wall portions 42 and 43 are integrally connected to the bottom plate portion 41 at their lower ends, and formed with a flat support surface 44 facing the width direction end surface of the movable contactor 15 disposed therein. ing.

As shown in FIG. 3, a recess 45 is provided in the bottom plate portion 41, and a through hole 46 is formed in the bottom portion 45a of the recess 45, through which the connecting shaft 23 connected to the movable contactor 15 is inserted. A circular projection 47 is formed around the hole 46 . Four guide piece through-holes 48 are formed in the bottom portion 45 a around the circular projection 47 .
The sliding guide 50 is formed by punching and bending a metal plate, and as shown in FIGS. A joint hole 52 is formed.

Further, on one side of the two long sides of the substrate portion 51, plate-shaped first and second guide pieces 53 and 54, which are bent at right angles from the substrate portion 51, stand up while facing each other. there is Plate-shaped third and fourth guides bent at right angles from the substrate portion 51 in the same direction with respect to the first and second guide pieces 53 and 54 are provided on the other side of the two long sides of the substrate portion 51 . Pieces 55 and 56 stand up while facing each other. At the tips of the first to fourth guide pieces 53 to 56, arc-shaped contact portions 57 that curve outward are formed.
In addition, on the two short sides of the substrate portion 51, elastic support pieces 58 and 59 are bent so as to be inclined in the direction opposite to the direction in which the first to fourth guide pieces 53 to 56 are raised. is formed.

FIG. 5 shows the slide when the sliding guide 50 is attached to the insulating tube 18 and the flange 7 of the rectangular tube 5 and the upper magnetic yoke 21 are fixed to integrate the contact mechanism 2 and the electromagnet unit 20 . It shows the arrangement of the motion guide 50 .
When the first to fourth guide pieces 53 to 56 of the sliding guide 50 are inserted into the four guide piece through holes 48 of the insulating tubular portion 18, the first to fourth guide pieces 53 moved into the insulating tubular portion 18. 56 contact the support surfaces 44 of the wall portions 42 and 43 at their contact portions 57 . The first and third guide pieces 53 and 55 face one end face in the width direction of the movable contactor 15 arranged in the insulating cylindrical portion 18, and the second and fourth guide pieces 54 and 56 It faces the other end surface of the movable contact 15 in the width direction.

The base portion 51 of the slide guide 50 is arranged along the bottom portion 45a of the recess 45, and the elastic support pieces 58 and 59 of the slide guide 50 are arranged so as to protrude away from the bottom portion 45a.
When the flange portion 7 of the rectangular tube 5 and the upper magnetic yoke 21 of the electromagnet unit 20 are fixed, the distance (L1) between the base end portion 51 of the sliding guide 50 and the auxiliary yoke 39 is increased by the elastic support pieces 58, Since the height is set smaller than the height of 59 before deformation, the elastic support pieces 58 and 59 arranged between the bottom portion 45a and the upper surface of the auxiliary yoke 39 are elastically deformed to press the bottom portion 45a and the upper surface of the auxiliary yoke 39. An elastic restoring force F1 is generated in the direction.

In this manner, the elastically deformed elastic support pieces 58 and 59 generate an elastic restoring force F1 that presses the bottom portion 45a of the insulating tubular portion 18 and the upper surface of the auxiliary yoke 39, so that the elastic support pieces 58 and 59 are extended from the short sides. The sliding guide 50 is fixed to the bottom plate portion 41 of the insulating tubular portion 18 in a state in which the protruding substrate portion 51 is pressed against the bottom portion 45a of the insulating tubular portion 18 and is in close contact therewith.
Here, the storage container described in the present invention corresponds to the insulating cylindrical portion 18, the bottom portion of the container described in the present invention corresponds to the bottom portion 45a, and the storage container side of the electromagnet unit described in the present invention corresponds to the bottom portion 45a. A member corresponds to the auxiliary yoke 39 of the electromagnet unit 20 .

Next, operation of the electromagnetic contactor 1 of the first embodiment will be described.
Assume now that the excitation coil 34 of the electromagnet unit 20 is in a non-excited state, and the electromagnet unit 20 is in a released state in which no exciting force is generated to move the movable plunger 22 downward.
In this released state, the movable plunger 22 is urged upward away from the upper magnetic yoke 21 by the return spring 36 . At the same time, the attraction force due to the magnetic force of the driving permanent magnet 37 acts on the auxiliary yoke 39, and the peripheral flange 22a of the movable plunger 22 is attracted. Therefore, the upper surface of the peripheral flange portion 22 a of the movable plunger 22 is in contact with the lower surface of the auxiliary yoke 39 .

Therefore, the first movable contact 15 a and the second movable contact 15 b of the movable contact 15 of the contact mechanism 2 connected to the movable plunger 22 via the connecting shaft 23 are connected to the first fixed contact of the first fixed contact 13 . 13a and the second fixed contact 14a of the second fixed contactor 14 are separated upward by a predetermined distance. Therefore, the current path between the first fixed contact 13 and the second fixed contact 14 is cut off, and the contact mechanism 2 is opened.
When the excitation coil 34 of the electromagnet unit 20 is energized from this released state, an excitation force is generated in the electromagnet unit 20 to move the movable plunger 22 against the biasing force of the return spring 36 and the attraction force of the driving permanent magnet 37. push down. The descent of the movable plunger 22 is stopped when the lower surface of the peripheral collar portion 22a hits the upper surface of the upper magnetic yoke 21. As shown in FIG.

As the movable plunger 22 descends in this way, the movable contact 15 connected to the movable plunger 22 via the connecting shaft 23 also descends, and the first movable contacts 15a, 15 of the movable contact 15 of the contact mechanism 2 move downward. The second movable contact 15b contacts the first fixed contact 13a of the first fixed contact 13 and the second fixed contact 14a of the second fixed contact 14 by the contact pressure of the contact spring 26 to be closed.

Here, when the movable contact 15 descends due to the generation of the excitation force of the electromagnet unit 20 to enter the closed state, or the movable contact 15 rises due to the biasing force of the return spring 36 and the attractive force of the driving permanent magnet 37. When the movable contact 15 is released, the movable contact 15 tries to rotate around the connecting shaft 23 . At that time, the first guide piece 53 and the third guide piece 55 of the sliding guide 50 arranged to face one end face in the width direction of the movable contactor 15 come into contact with one end face, or the movable contactor A second guide piece 54 and a fourth guide piece 56, which are arranged to face the other end face in the width direction of 15, abut the other end face. In this manner, the movable contactor 15 descends and ascends while its rotation about the connecting shaft 23 is restricted by the first to fourth guide pieces 53 to 56 of the slide guide 50 .

Further, when the contact mechanism 2 is closed due to the generation of the excitation force of the electromagnet unit 20, the first movable contact 15a and the second movable contact 15b of the movable contact 15 are connected to the first fixed contact 13a and the second movable contact 13a of the first fixed contact 13, respectively. 2. The impact when contacting the fixed contact 14 is transmitted to the insulating cylindrical portion 18 . The impact transmitted to the insulating tubular portion 18 is absorbed by the elastic supporting pieces 58, 59 arranged between the bottom portion 45a of the insulating tubular portion 18 and the upper surface of the auxiliary yoke 49 in an elastically deformed state.

Therefore, according to the electromagnetic contactor 1 of the first embodiment, when the movable contact 15 is in the closed state or the released state, the sliding contact arranged opposite one end face in the width direction of the movable contact 15 A first guide piece 53 and a third guide piece 55 of the guide 50 are in contact with one end face, and a second guide piece 54 and a fourth guide piece are arranged to face the other end face in the width direction of the movable contactor 15. 56 contacts the other end face, and the movable contact 15 is restricted from rotating around the connecting shaft 23 . As a result, the first movable contact 15a and the second movable contact 15b of the movable contact 15 of the contact mechanism 2 are connected to the first fixed contact 13a of the first fixed contact 13 and the second fixed contact 14a of the second fixed contact 14. can contact with a constant contact area.

Further, since the movable contactor 15 is in contact with the first to fourth guide pieces 53 to 56, it is possible to avoid defective conduction and ensure the reliability of the current path.
Also, the elastic support pieces 58 and 59 of the sliding guide 50 arranged between the bottom portion 45a of the insulating tubular portion 18 and the upper surface of the auxiliary yoke 49 generate an elastic restoring force F1, so that the substrate portion 51 becomes the insulating tubular portion. Since the sliding guide 50 is pressed against the bottom portion 45a of the insulating cylinder 18 and is in close contact with the bottom portion 45a, the sliding guide 50 can be securely fixed to the bottom plate portion 41 of the insulating cylindrical portion 18. As shown in FIG.

Further, when the contact mechanism 2 is turned on by the generation of the excitation force of the electromagnet unit 20, the first movable contact 15a and the second movable contact 15b of the movable contact 15 are connected to the first fixed contact 13a and the second fixed contact 13a of the first fixed contact 13, respectively. When the impact of contacting the second fixed contact 14b of the fixed contactor 14 is transmitted to the insulating cylindrical portion 18, it is arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 in an elastically deformed state. The elastic supporting pieces 58, 59 provided thereon can absorb the impact.
In addition, it is possible to prevent the storage container from rattling, and to eliminate instability at the time of assembly.

Further, the elastic supporting pieces 58, 59 of the sliding guide 50 elastically deformed are fixed to the insulating cylindrical portion 18 of the sliding guide 50, and the function of absorbing the shock generated when the contact mechanism 2 is turned on and the anti-rattle mechanism are provided. , which eliminates the need for a cushioning member arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 as in the conventional magnetic contactor, thereby reducing the number of parts and the number of assembly man-hours. 1 can be reduced in manufacturing cost.

[Sliding guide of the second embodiment]
Next, FIG. 6 shows a sliding guide 60 of a second embodiment according to the invention. 1 to 5 are denoted by the same reference numerals, and description thereof will be omitted.
The slide guide 60 of the second embodiment is formed by punching and bending a metal plate, like the slide guide 50 of the first embodiment.
The sliding guide 60 includes a rectangular plate-shaped substrate portion 61 and projection engaging holes 62 formed by punching out the surface of the substrate portion 61 .

The sliding guide 60 is formed on one side of the two long sides of the substrate portion 61, and has plate-like first and second guide pieces 63 and 64 that stand up from the substrate portion 61 while facing each other. are formed on the other side of the two long sides of the substrate portion 61, rise from the substrate portion 61 in the same direction with respect to the first and second guide pieces 63 and 64, and face each other. Third and fourth guide pieces 65, 66 are provided.
Also, arc-shaped abutment portions 67 that curve outward are formed at the tips of the first to fourth guide pieces 63 to 66 .

Also, the sliding guide 60 is provided on two long sides of the base plate portion 61, and is bent in a direction opposite to the direction in which the first to fourth guide pieces 63 to 66 rise. Support pieces 68, 69 are formed.
Further, on the base plate portion 61 of the slide guide 60, a V-shaped base-side elastic support member extending in the long-side direction at the center portion in the short-side direction and bent in the same direction as the elastic support pieces 68 and 69 is provided. A piece 70 is formed.

In the sliding guide 60 of the second embodiment, when the first to fourth guide pieces 63 to 66 are inserted into the four guide piece through holes 48 of the insulating tubular portion 18, the first sliding guide 60 moves inside the insulating tubular portion 18. The contact portions 67 of the to fourth guide pieces 63 to 66 contact the support surfaces 44 of the wall portions 42 and 43, respectively. The first and third guide pieces 63 and 65 face one end face in the width direction of the movable contactor 15 arranged in the insulating cylindrical portion 18, and the second and fourth guide pieces 64 and 66 It faces the other end surface of the movable contact 15 in the width direction.
The substrate portion 61 of the sliding guide 60 is arranged on the bottom portion 45a of the recessed portion 45 of the insulating cylindrical portion 18, and the elastic support pieces 68 and 69 of the sliding guide 60 are arranged so as to protrude away from the bottom portion 45a. .

When the flange portion 7 of the rectangular tube 5 and the upper magnetic yoke 21 of the electromagnet unit 20 are fixed, the distance (L1) between the base end portion 61 of the slide guide 60 and the auxiliary yoke 39 is equal to the elastic support pieces 68 and 69. , and is set smaller than the projecting height of the substrate-side elastic support piece 70 formed on the substrate portion 61 before deformation. The elastic support pieces 68 and 69 and the substrate-side elastic support piece 70 are elastically deformed to generate an elastic restoring force in the direction of pressing the bottom portion 45 a and the upper surface of the auxiliary yoke 39 .
In this way, the elastically deformed elastic support pieces 68 and 69 and the board-side elastic support piece 70 generate an elastic restoring force that presses the bottom portion 45a of the insulating tubular portion 18 and the upper surface of the auxiliary yoke 49, so that the substrate portion 61 is , the sliding guide 60 is fixed to the bottom plate portion 41 of the insulating tubular portion 18 in a state of being pressed against and in close contact with the bottom portion 45a of the insulating tubular portion 18 .

Next, the operation of the electromagnetic contactor 1 in which the slide guide 60 of the second embodiment is arranged will be described.
When the movable contactor 15 descends due to the excitation force generated by the electromagnet unit 20 and enters the closed state, or when the movable contactor 15 rises due to the biasing force of the return spring 36 and the attractive force of the driving permanent magnet 37 and enters the released state. In this case, the movable contact 15 tends to rotate around the connecting shaft 23 . At that time, the first guide piece 63 and the third guide piece 65 of the sliding guide 60 arranged to face one end face in the width direction of the movable contactor 15 come into contact with one end face, or the movable contactor A second guide piece 64 and a fourth guide piece 66 arranged to face the other widthwise end surface of 15 abut the other end surface. In this manner, the movable contactor 15 descends and ascends while its rotation about the connecting shaft 23 is restricted by the first to fourth guide pieces 63 to 66 of the slide guide 60 .

Further, when the contact mechanism 2 is closed due to the generation of the excitation force of the electromagnet unit 20, the first movable contact 15a and the second movable contact 15b of the movable contact 15 are connected to the first fixed contact 13a and the second movable contact 13a of the first fixed contact 13, respectively. The impact when contacting the second fixed contact 14 b of the two fixed contacts 14 is transmitted to the insulating cylinder portion 18 . The impact transmitted to the insulating tubular portion 18 is applied to the elastic supporting pieces 68 and 69 and the board side elastic supporting piece 70 which are arranged between the bottom portion 45a of the insulating tubular portion 18 and the upper surface of the auxiliary yoke 49 in an elastically deformed state. absorbs.

Therefore, according to the electromagnetic contactor 1 provided with the sliding guide 60 of the second embodiment, when the movable contactor 15 is in the closed state or the released state, it faces one end face in the width direction of the movable contactor 15. The first guide piece 63 and the third guide piece 65 of the sliding guide 60 arranged in contact with one end face, and the second guide arranged to face the other end face of the movable contactor 15 in the width direction. The piece 64 and the fourth guide piece 66 abut on the other end face, and the movable contact 15 is restricted from rotating around the connecting shaft 23 . As a result, the first movable contact 15a and the second movable contact 15b of the movable contact 15 of the contact mechanism 2 are connected to the first fixed contact 13a of the first fixed contact 13 and the second fixed contact 14a of the second fixed contact 14. can contact with a constant contact area.

Further, since the movable contactor 15 is in contact with the first to fourth guide pieces 63 to 66, it is possible to avoid defective conduction and ensure the reliability of the current path.
In addition, the elastic support pieces 68 and 69 of the slide guide 60 and the substrate-side elastic support piece 70 arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 generate an elastic restoring force, so that the substrate Since the portion 61 is pressed against the bottom portion 45 a of the insulating tubular portion 18 and adheres thereto, the sliding guide 60 can be reliably fixed to the bottom plate portion 41 of the insulating tubular portion 18 .

Further, when the contact mechanism 2 is turned on by the generation of the excitation force of the electromagnet unit 20, the first movable contact 15a and the second movable contact 15b of the movable contact 15 are connected to the first fixed contact 13a and the second fixed contact 13a of the first fixed contact 13, respectively. When the impact of contacting the second fixed contact 14b of the fixed contactor 14 is transmitted to the insulating cylindrical portion 18, it is arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 in an elastically deformed state. The elastic supporting pieces 68 and 69 and the board-side elastic supporting piece 70 can absorb the impact.
In addition, it is possible to prevent the storage container from rattling, and to eliminate instability at the time of assembly.

Furthermore, the elastically deformed elastic support pieces 68 and 69 of the slide guide 50 and the substrate-side elastic support piece 70 have the function of fixing to the insulating cylindrical portion 18 of the slide guide 60 and the impact generated when the contact mechanism 2 is turned on. It has an absorbing function and a rattling prevention mechanism at the same time, so that the number of parts and assembly man-hours can be reduced, and the manufacturing cost of the electromagnetic contactor 1 can be reduced.

[Sliding guide of the third embodiment]
Next, FIG. 7 shows a sliding guide 80 of a third embodiment.
The sliding guide 80 of the third embodiment is formed by punching and bending a metal plate, and includes a rectangular plate-shaped substrate portion 81, a projection engagement hole 82 formed by punching the surface of the substrate portion 81, Plate-like first and second guide pieces 83 and 84 rising from the substrate portion 81, and the first and second guide pieces 83 and 84 rising from the substrate portion 81 in the same direction and facing each other. plate-shaped third and fourth guide pieces 85 and 86 are provided.

Further, arc-shaped contact portions 87 that curve outward are formed at the tips of the first to fourth guide pieces 83 to 86 .
Further, the sliding guide 80 is formed on one long side of the base plate portion 81, and is bent in a direction opposite to the direction in which the first to fourth guide pieces 83 to 86 are raised. Support pieces 88a and 88b are formed, and elastic support pieces 89a and 89b are formed on the other long side of the substrate portion 61 so as to be inclined in the same direction as the elastic support pieces 88a and 88b.

In the sliding guide 80 of the third embodiment, when the first to fourth guide pieces 83 to 86 are inserted into the four guide piece through holes 48 of the insulating tubular portion 18, the first sliding guide 80 moves into the insulating tubular portion 18. The contact portions 87 of the to fourth guide pieces 83 to 86 come into contact with the support surfaces 44 of the wall portions 42 and 43, respectively. The first and third guide pieces 83 and 85 face one end face in the width direction of the movable contact 15 arranged in the insulating cylindrical portion 18, and the second and fourth guide pieces 84 and 86 It faces the other end surface of the movable contact 15 in the width direction.
When the substrate portion 81 of the sliding guide 80 is arranged along the bottom portion 45a of the concave portion 45 of the insulating cylindrical portion 18, the elastic support pieces 88a, 88b, 89a, and 89b of the sliding guide 80 move away from the bottom portion 45a. placed protruding from the

When the flange portion 7 of the rectangular tube 5 and the upper magnetic yoke 21 of the electromagnet unit 20 are fixed, the distance (L1) between the base end portion 81 of the sliding guide 80 and the auxiliary yoke 39 is equal to that of the elastic support pieces 88a and 88b. , 89a and 89b before deformation, the elastic support pieces 88a, 88b, 89a and 89b arranged between the bottom portion 45a and the upper surface of the auxiliary yoke 39 are elastically deformed, and the bottom portion 45a and the auxiliary yoke 39 are elastically deformed. An elastic restoring force is generated in the direction of pressing the upper surface of the yoke 39 .
In this way, the elastically deformed elastic support pieces 88a, 88b, 89a, and 89b generate an elastic restoring force that presses the bottom portion 45a of the insulating cylinder portion 18 and the upper surface of the auxiliary yoke 49, so that the substrate portion 81 is formed into an insulating cylinder. The sliding guide 80 is fixed to the bottom plate portion 41 of the insulating cylindrical portion 18 while being pressed against and in close contact with the bottom portion 45 a of the portion 18 .

According to the electromagnetic contactor 1 provided with the sliding guide 80 of the third embodiment, when the movable contact 15 is in the closed state or the released state, it faces one end face in the width direction of the movable contact 15. The first guide piece 83 and the third guide piece 85 of the slide guide 80 are arranged in contact with one end face, and the second guide piece 84 is arranged to face the other end face in the width direction of the movable contactor 15 . And the fourth guide piece 86 abuts on the other end face, and the movable contact 15 is restricted from rotating around the connecting shaft 23 . As a result, the first movable contact 15a and the second movable contact 15b of the movable contact 15 of the contact mechanism 2 are connected to the first fixed contact 13a of the first fixed contact 13 and the second fixed contact 14a of the second fixed contact 14. can contact with a constant contact area.

Further, since the movable contactor 15 is in contact with the first to fourth guide pieces 83 to 86, it is possible to avoid defective conduction and ensure the reliability of the current path.
Also, the elastic support pieces 88a, 88b, 89a, 89b of the slide guide 80 arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 generate an elastic restoring force, so that the substrate portion 81 is Since the sliding guide 80 is pressed against the bottom portion 45 a of the insulating tubular portion 18 and adhered thereto, the sliding guide 80 can be securely fixed to the bottom plate portion 41 of the insulating tubular portion 18 .

Further, when the contact mechanism 2 is turned on by the generation of the excitation force of the electromagnet unit 20, the first movable contact 15a and the second movable contact 15b of the movable contact 15 are connected to the first fixed contact 13a and the second fixed contact 13a of the first fixed contact 13, respectively. When the impact of contacting the second fixed contact 14b of the fixed contactor 14 is transmitted to the insulating cylindrical portion 18, it is arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 in an elastically deformed state. The elastic supporting pieces 88a, 88b, 89a, 89b can absorb the impact.
In addition, it is possible to prevent the storage container from rattling, and to eliminate instability at the time of assembly.

The slide guide 80 of the third embodiment has four elastic support pieces 88a, 88b, 89a, 89b, and the sliding guide 80 of the first embodiment with two elastic support pieces 58, 59. Since the elastic restoring force is set larger than that of the guide 50, the fixing force of the sliding guide 80 and the ability to absorb shock transmitted to the insulating tubular portion 18 can be enhanced.
Furthermore, the elastically deformed elastic supporting pieces 88a, 88b, 89a, 89b of the slide guide 80 have a function of fixing to the insulating cylindrical portion 18 of the slide guide 80, and a function of absorbing the impact generated when the contact mechanism 2 is turned on. and a rattling prevention mechanism are provided at the same time, the number of parts and assembly man-hours can be reduced, and the manufacturing cost of the electromagnetic contactor 1 can be reduced.

[Sliding guide of the fourth embodiment]
Next, FIG. 8 shows a sliding guide 90 of a fourth embodiment.
The sliding guide 90 of the fourth embodiment is also formed by punching and bending a metal plate, and includes a rectangular plate-shaped substrate portion 91, a projection engaging hole 92 formed by punching the surface of the substrate portion 91, Plate-shaped first and second guide pieces 93 and 94 standing up from the substrate portion 91 and the first and second guide pieces 93 and 94 are raised from the substrate portion 91 in the same direction, and the surfaces thereof face each other. plate-shaped third and fourth guide pieces 95 and 96 are provided.

Further, arc-shaped contact portions 97 that curve outward are formed at the tips of the first to fourth guide pieces 93 to 96 .
Also, the sliding guide 90 is located on one short side of the base plate portion 91 at a position outside the first and second guide pieces 93 and 94 with respect to the rising direction of the first and second guide pieces 93 and 94 . Elastic support pieces 98a and 98b are formed so as to be inclined in the opposite direction. In addition, on the other short side of the base plate portion 91 , there is an inclination in the direction opposite to the rising direction of the third and fourth guide pieces 95 and 96 at positions outside the third and fourth guide pieces 95 and 96 . Elastic supporting pieces 99a and 99b are formed so as to be bent so as to form the elastic support pieces 99a and 99b.

In the sliding guide 90 of the fourth embodiment, when the first to fourth guide pieces 93 to 96 are inserted into the four guide piece through holes 48 of the insulating tubular portion 18, the first sliding guide 90 moves into the insulating tubular portion 18. The contact portions 97 of the to fourth guide pieces 93 to 96 contact the support surfaces 44 of the wall portions 42 and 43, respectively. The first and third guide pieces 93 and 95 face one end face in the width direction of the movable contactor 15 arranged in the insulating cylindrical portion 18, and the second and fourth guide pieces 94 and 96 It faces the other end surface of the movable contact 15 in the width direction.
When the substrate portion 91 of the sliding guide 90 is arranged along the bottom portion 45a of the concave portion 45 of the insulating cylindrical portion 18, the elastic support pieces 98a, 98b, 99a, and 99b of the sliding guide 90 move away from the bottom portion 45a. placed protruding from the

When the flange portion 7 of the rectangular tube 5 and the upper magnetic yoke 21 of the electromagnet unit 20 are fixed, the distance (L1) between the base end portion 61 of the sliding guide 60 and the auxiliary yoke 39 is equal to that of the elastic support pieces 98a and 98b. , 99a and 99b before deformation, the elastic support pieces 98a, 98b, 99a and 99b arranged between the bottom portion 45a and the upper surface of the auxiliary yoke 39 are elastically deformed, and the bottom portion 45a and the auxiliary yoke 39 are elastically deformed. An elastic restoring force is generated in the direction of pressing the upper surface of the yoke 39 .
In this way, the elastically deformed elastic support pieces 98a, 98b, 99a, and 99b generate an elastic restoring force that presses the bottom portion 45a of the insulating tube portion 18 and the upper surface of the auxiliary yoke 49, so that the substrate portion 91 is formed into the insulating tube. The sliding guide 90 is fixed to the bottom plate portion 41 of the insulating cylindrical portion 18 while being pressed against and in close contact with the bottom portion 45 a of the portion 18 .

According to the electromagnetic contactor 1 having the sliding guide 90 of the fourth embodiment, when the movable contactor 15 is in the closed state or the released state, it faces one end face in the width direction of the movable contactor 15. A first guide piece 93 and a third guide piece 95 of the slide guide 90 arranged are in contact with one end face, and a second guide piece 94 is arranged to face the other end face in the width direction of the movable contactor 15 . and the fourth guide piece 96 abut on the other end face, and the movable contact 15 is restricted from rotating around the connecting shaft 23 . As a result, the first movable contact 15a and the second movable contact 15b of the movable contact 15 of the contact mechanism 2 are connected to the first fixed contact 13a of the first fixed contact 13 and the second fixed contact 14a of the second fixed contact 14. can contact with a constant contact area.

Further, since the movable contactor 15 is in contact with the first to fourth guide pieces 93 to 96, it is possible to avoid defective conduction and ensure the reliability of the current path.
Also, the elastic support pieces 98a, 98b, 99a, and 99b of the slide guide 80 arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 generate an elastic restoring force, so that the substrate portion 81 is Since the sliding guide 90 is pressed against the bottom portion 45 a of the insulating tubular portion 18 and adhered thereto, the sliding guide 90 can be securely fixed to the bottom plate portion 41 of the insulating tubular portion 18 .

Further, when the contact mechanism 2 is turned on by the generation of the excitation force of the electromagnet unit 20, the first movable contact 15a and the second movable contact 15b of the movable contact 15 are connected to the first fixed contact 13a and the second fixed contact 13a of the first fixed contact 13, respectively. When the impact of contacting the second fixed contact 14b of the fixed contactor 14 is transmitted to the insulating cylindrical portion 18, it is arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 in an elastically deformed state. The elastic supporting pieces 98a, 98b, 99a, 99b can absorb the impact.
In addition, it is possible to prevent the storage container from rattling, and to eliminate instability at the time of assembly.

In the sliding guide 90 of the fourth embodiment, elastic support pieces 98a, 98b, 99a, and 99b are formed outside the first to fourth guide pieces 93 to 96 in the long side direction. , 98b and the elastic support pieces 99a, 99b are set wide, the pressing force of the insulating cylindrical portion 18 against the bottom plate portion 41 can be increased.
Furthermore, the elastically deformed elastic support pieces 98a, 98b, 99a, and 99b of the sliding guide 90 have a function of fixing to the insulating cylindrical portion 18 of the sliding guide 90, and a function of absorbing the impact generated when the contact mechanism 2 is turned on. and a rattling prevention mechanism are provided at the same time, the number of parts and assembly man-hours can be reduced, and the manufacturing cost of the electromagnetic contactor 1 can be reduced.

[Sliding guide of the fifth embodiment]
Next, FIG. 9 shows a sliding guide 100 of a fifth embodiment.
The sliding guide 100 of the fifth embodiment is also formed by punching and bending a metal plate, and includes a rectangular plate-shaped substrate portion 101, a projection engaging hole 102 formed by punching the surface of the substrate portion 101, Plate-shaped first and second guide pieces 103 and 104 rising from the substrate portion 101 and the first and second guide pieces 103 and 104 rising from the substrate portion 101 in the same direction and facing each other. plate-shaped third and fourth guide pieces 105 and 106 are provided.

Also, arc-shaped abutting portions 107 that curve outward are formed at the tips of the first to fourth guide pieces 103 to 106 .
Further, the sliding guide 100 is provided on one short side of the substrate portion 101 at a position outside the first and second guide pieces 103 and 104 with respect to the rising direction of the first and second guide pieces 103 and 104 . Elastic support pieces 108a and 108b are formed so as to be convexly curved in the opposite direction. Further, on the other short side of the substrate portion 101, there is a projection in the direction opposite to the rising direction of the third and fourth guide pieces 105 and 106 at positions outside the third and fourth guide pieces 105 and 106. Elastic support pieces 109a and 109b are formed so as to be curved in a shape.

In the sliding guide 100 of the fifth embodiment, when the first to fourth guide pieces 103 to 106 are inserted into the four guide piece through-holes 48 of the insulating tubular portion 18, the first sliding guide 100 moves into the insulating tubular portion 18. The contact portions 97 of the to fourth guide pieces 103 to 106 contact the support surfaces 44 of the wall portions 42 and 43, respectively. The first and third guide pieces 103 and 105 face one end face in the width direction of the movable contactor 15 arranged in the insulating cylindrical portion 18, and the second and fourth guide pieces 104 and 106 It faces the other end surface of the movable contact 15 in the width direction.
When the substrate portion 101 of the slide guide 100 is arranged along the bottom portion 45a of the recessed portion 45 of the insulating cylinder portion 18, the elastic support pieces 108a, 108b, 109a, and 109b of the slide guide 100 move away from the bottom portion 45a. placed protruding from the

When the flange portion 7 of the rectangular tube 5 and the upper magnetic yoke 21 of the electromagnet unit 20 are fixed, the distance (L1) between the base end portion 61 of the sliding guide 60 and the auxiliary yoke 39 is equal to that of the elastic support pieces 108a and 108b. , 109a and 109b before deformation, the elastic support pieces 108a, 108b, 109a and 109b arranged between the bottom portion 45a and the upper surface of the auxiliary yoke 39 are elastically deformed, and the bottom portion 45a and the auxiliary yoke 39 are elastically deformed. An elastic restoring force is generated in the direction of pressing the upper surface of the yoke 39 .
In this way, the elastically deformed elastic supporting pieces 108a, 108b, 109a, and 109b generate an elastic restoring force that presses the bottom portion 45a of the insulating tubular portion 18 and the upper surface of the auxiliary yoke 49, so that the substrate portion 101 is formed into the insulating tubular portion. The sliding guide 100 is fixed to the bottom plate portion 41 of the insulating cylindrical portion 18 while being pressed against and in close contact with the bottom portion 45a of the portion 18 .

According to the electromagnetic contactor 1 provided with the sliding guide 100 of the fifth embodiment, when the movable contactor 15 is in the closed state or the released state, the movable contactor 15 faces one end face in the width direction. The first guide piece 103 and the third guide piece 105 of the sliding guide 100 are arranged in contact with one end face, and the second guide piece 104 is arranged to face the other end face in the width direction of the movable contactor 15 . And the fourth guide piece 106 abuts on the other end surface, and the movable contact 15 is restricted from rotating around the connecting shaft 23 . As a result, the first movable contact 15a and the second movable contact 15b of the movable contact 15 of the contact mechanism 2 are connected to the first fixed contact 13a of the first fixed contact 13 and the second fixed contact 14a of the second fixed contact 14. can contact with a constant contact area.

Further, since the movable contactor 15 is in contact with the first to fourth guide pieces 103 to 106, it is possible to avoid defective conduction and ensure the reliability of the current path.
Also, the elastic support pieces 108a, 108b, 109a, and 109b of the slide guide 100 arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 generate an elastic restoring force, so that the substrate portion 81 is Since the sliding guide 100 is pressed against the bottom portion 45 a of the insulating tubular portion 18 and adhered thereto, the sliding guide 100 can be securely fixed to the bottom plate portion 41 of the insulating tubular portion 18 .

Further, when the contact mechanism 2 is turned on by the generation of the excitation force of the electromagnet unit 20, the first movable contact 15a and the second movable contact 15b of the movable contact 15 are connected to the first fixed contact 13a and the second fixed contact 13a of the first fixed contact 13, respectively. When the impact of contacting the second fixed contact 14b of the fixed contactor 14 is transmitted to the insulating cylindrical portion 18, it is arranged between the bottom portion 45a of the insulating cylindrical portion 18 and the upper surface of the auxiliary yoke 49 in an elastically deformed state. The elastic supporting pieces 108a, 108b, 109a, 109b can absorb the impact.
In addition, it is possible to prevent the storage container from rattling, and to eliminate instability at the time of assembly.

In the slide guide 100 of the fifth embodiment, elastic support pieces 108a, 108b, 109a, and 109b are formed outside the first to fourth guide pieces 103 to 106 in the long side direction. , 108b and the elastic support pieces 109a, 109b are set wide, the pressing force of the insulating cylindrical portion 18 against the bottom plate portion 41 can be increased.
Furthermore, the elastically deformed elastic supporting pieces 108a, 108b, 109a, and 109b of the sliding guide 100 have a function of fixing to the insulating cylindrical portion 18 of the sliding guide 100, and a function of absorbing the impact generated when the contact mechanism 2 is turned on. and a rattling prevention mechanism are provided at the same time, the number of parts and assembly man-hours can be reduced, and the manufacturing cost of the electromagnetic contactor 1 can be reduced.

In addition, although the sliding guide 60 of the second embodiment shown in FIG. A similar effect can be obtained by forming the board-side elastic support piece 70 .

1 Electromagnetic contactor 2 Contact mechanism 4 Contact storage case 5 Rectangular cylinder 6 Insulating substrate 7 Flanges 9 and 10 Through holes 11 and 12 Conductor 13 First fixed contact 13a First fixed contact 13b First conductive plate 13c Second conductive plate portion 13d Third conductive plate portion 14 Second fixed contact 14a Second fixed contact 14b First conductive plate portion 14c Second conductive plate portion 14d Third conductive plate portion 15 Movable contact 15a First movable contact 15b 2 movable contacts 16, 17 insulating cover 18 insulating cylindrical portions 19a, 19b magnetic plate 20 electromagnet unit 21 upper magnetic yoke 21a through hole 22 movable plunger 23 connecting shaft 24 through hole 25 flange portion 26 contact spring 27 C ring 28 magnetic yoke 29 Fixed plunger 30 Spool 31 Central cylindrical portion 32 Lower flange portion 33 Upper flange portion 34 Exciting coil 35 Cap 36 Return spring 37 Driving permanent magnet 38 Through hole 39 Auxiliary yoke 40 Rectangular tube portion 41 Bottom plate portions 42, 43 Wall portion 44 Support surface 45 recess 45a bottom 46 through-hole 47 circular projection 48 guide piece through-hole 50 slide guide 51 substrate portion 52 projection engagement hole 53 first guide piece 54 second guide piece 55 third guide piece 56 fourth guide piece 57 contact Portions 58 and 59 Elastic support piece 60 Sliding guide 61 Base plate portion 62 Projection engaging hole 63 First guide piece 64 Second guide piece 65 Third guide piece 66 Fourth guide piece 67 Abutment portions 68 and 69 Elastic support piece 70 Board side elastic support piece 80 Sliding guide 81 Board portion 82 Projection engagement hole 83 First guide piece 84 Second guide piece 85 Third guide piece 86 Fourth guide piece 87 Abutting portions 88a, 88b, 89a, 89b Elastic support Piece 90 Sliding guide 91 Base plate portion 92 Projection engagement hole 93 First guide piece 94 Second guide piece 95 Third guide piece 96 Fourth guide piece 97 Abutment portions 98a, 98b, 99a, 99b Elastic support piece 100 Sliding Guide 101 Board portion 102 Projection engagement hole 103 First guide piece 104 Second guide piece 105 Third guide piece 106 Fourth guide piece 107 Contact portions 108a, 108b, 109a, 109b Elastic support piece

Claims (7)

a contact mechanism in which a pair of stationary contacts and a long movable contact capable of contacting and separating from the pair of stationary contacts are accommodated in a container made of an insulating material;
an electromagnet unit that drives the movable contactor in a forward and backward direction in which the movable contactor of the contact mechanism contacts and separates from the pair of fixed contactors;
a sliding guide that regulates rotational displacement when the movable contact advances and retreats,
The sliding guide is made of a metal material,
a substrate portion;
a plurality of guide pieces extending in a direction perpendicular to the substrate;
a plurality of elastic support pieces protruding from the substrate portion in a direction opposite to the direction in which the guide pieces extend;
The plurality of guide pieces are arranged on both sides in the width direction of the movable contact within the storage container,
The base plate and the plurality of elastic support pieces are arranged on the container bottom of the storage container ,
The plurality of elastic support pieces are elastically deformed by being sandwiched between the container bottom and a container-side member of the electromagnet unit facing the container bottom, and the elastic restoring force of the plurality of elastic support pieces is applied to the substrate portion. acting as a force to press against the bottom side of the container. The substrate portion is formed in a rectangular plate shape, and the plurality of guide pieces includes first and second guide pieces extending from one side of two long sides of the substrate portion so as to face each other, and the substrate. 2. The electromagnetic contactor according to claim 1, further comprising third and fourth guide pieces extending from the other side of the two long sides of the portion so as to face each other. 3. The electromagnetic contactor according to claim 2, wherein the two elastic support pieces are formed from two short sides of the substrate portion. 3. The electromagnetic contactor according to claim 2, wherein the two elastic support pieces are formed from two long sides of the substrate portion. 2. The elastic supporting pieces are formed from one long side of the substrate portion, and the elastic supporting pieces are formed from the other long side of the substrate portion. 2. The electromagnetic contactor according to 2 above. The elastic support piece is formed from the substrate portion at a position outside one of the long sides of the first and second guide pieces, and the long side of the third and fourth guide pieces 3. The electromagnetic contactor according to claim 2, wherein said elastic support piece is formed from said substrate portion at an outer position on the other side of said substrate. A substrate-side elastic support piece is formed on a part of the substrate portion and is convexly bent in the same direction as the direction in which the plurality of elastic support pieces extend,
When the contact mechanism and the electromagnet unit are integrally incorporated, the substrate-side elastic support piece is elastically deformed by being sandwiched between the container bottom and a container-side member of the electromagnet unit facing the container bottom, The electromagnetic contactor according to any one of claims 1 to 6, wherein the elastic restoring force of the substrate-side elastic support piece acts as a force for pressing the substrate portion against the bottom side of the container.

Images