TW201042695A - Electromagnetic relay and control device provided with same - Google Patents

Abstract

An electromagnetic relay (1) is provided with an electromagnet (5), an armature (6) that is pivoted by the electromagnet (5), a card (8) that engages with the armature (6) and slides as a result of the pivoting of the armature (6), a movable contact that engages with the card (8), a fixed contact that can switch between contact states by touching or separating from said movable contact, and a return spring (7) that is provided between the armature (6) and the movable contact and locks the card (8) in place.

Description

201042695 VI. Description of the invention: [Technical field to which the invention pertains] 疋 An electromagnetic relay and a control device for using the electromagnetic relay, particularly regarding a cat, about an electromagnetic relay generally referred to as a safety relay. [Prior Art] In the above safety relay, the switch state is the opposite contact, that is, the N〇(n〇rmally 〇Pen(a)) contact is common to the NC (normaliy ci〇sed(b)). Electromagnets, armatures and cards are used to drive. In this safety relay, when one of the contacts is welded, the card does not move, so the other contact does not have a switching action. #这, It can be detected by the other contact that the contact is actually rectified. Therefore, the safety net of such a safety relay can be used as a safety measure by combining a plurality of sections in a control device for controlling a work machine or the like. The above-mentioned queen relay is realized by four joints (for example, 3alb, 2a2b, or la3b) shown in Patent Document 1 and Patent Document 2. The above safety relay is also realized by the configuration of six joints (e.g., 5 alb* heart) shown in Patent Document 3. Fig. 26 is an exploded perspective view showing the electromagnetic relay of Patent Document 3; The electromagnetic relay is "2b contact structure, that is, has a contact 10b 104 and b contacts 105, 106. Among these contacts 1〇1~1〇6, the movable contacts 101a~106a are borrowed. Driven by cards 1〇7. On the card 107, the locking holes 101b to 106b in which the leading ends of the movable contacts 101a to 106a are respectively inserted into 201042695 are formed. The contacts 101, 102 located at the outermost side are fixed at the a contact. On the other hand, 'for the remaining contacts 1〇3~1〇6, the virtual card hole is set so that the a contact and the b contact can be arbitrarily selected. The card 107 is non-excited at the electromagnet 1〇8. In the state, the return spring 109' is displaced in the opposite direction to the arrow U〇, the b contact 105, 106 is opened, and the a contact 1 〇1~1 〇4 is closed. In contrast, when the electromagnet 丨〇8 When excited, the card 107 is displaced by the armature 1 π toward the arrow i 1 ,, the b contact 0 105, 106 is turned off ' a contact ιοί ~ 1 〇 4 is turned on. However, there is no need for so many contacts In the case of, for example, as shown in Patent Document 4, an example of a two-contact is proposed. [Patent Document 1] International Publication No. 6-006557 [ [Patent Document 3] Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. The vertical plane of the crucible is shown in Fig. 28. The cross-sectional view of the electromagnetic relay is cut in a plane parallel to the horizontal direction. In Fig. 28, the concave corner is cut out in one part of the card 121 and is not shown. Fig. 27 and Fig. 28 are sectional views of the XX ΐχ-χχΐχ line. As shown in Fig. 28, the electromagnetic relay 12 〇 is considered to have a contact of lalb (a contact is denoted by reference symbol 丄 2 3 , b contact In the electromagnetic relay, the card 121 generates a sliding feat position 126 toward the arrow 127 and its opposite direction by the armature 126 which generates the 5 201042695 rocking displacement due to the electromagnet 125. The portion of one end side of the 21 is only locked by the movable contacts 123a, 124a of the contacts 丨2 3, ! 2 4 , and the other end portion of the card 121 has a simple structure for locking the armature 126. The armature 126 can be hooked and locked. On the other hand, as shown in Figure 26 In the electromagnetic relay 1A, the locking claws 1〇lc1 to 1〇6c are formed at the tips of the movable contacts 101a to 106a, and the locking claws 101c to 1 0 6 c are respectively locked to the locking holes. The structure of the peripheral portion of 丨〇丨b~丨〇6 b. In the electromagnetic relay 1 具有 having a 6-pole contact structure or a 4-pole contact structure shown in Fig. 26, these locking claws 101c to 106c The card 1〇7 that has been locked can be held by the locking claws 1〇1〇 to 106 (the six locking portions), so that the locking claws l〇lc to 106c are difficult to be detached from the card 1〇7. On the other hand, in the electromagnetic relay 12 () shown in Figs. 27 to 29, when the minimum lalb contact structure is employed, the movable contact; the heart is along the width direction of the card 121 (as shown in the figure (4) When the electromagnetic relay 120 is rectangular, the short side direction is arranged on an approximate straight line. Thus, the card 1 21 is only held at the front end of the movable contact 1 centered in the width direction, 124a. Therefore, when the collision or action day of the direction (2) shown in Fig. 27 is applied to the electromagnetic Following the lightning 1 9 Π ηΐ relay benefit 1 2 0, it is possible to unlock the armature 1 2 6 and the card 121. SUMMARY OF THE INVENTION An object of the present invention is to provide a highly reliable electromagnetic relay and a control device for using the electromagnetic relay of 201042695, wherein a minimum contact structure can be used to stably maintain a card and an electric cymbal. The state of the lock. The electromagnetic relay of the present invention comprises an electric iron, an armature which is oscillated and displaced by the electromagnet, and a card which is locked with the above-mentioned lightning electromagnet and which causes a sliding displacement by the k-position of the armature of the armature. a movable contact that is locked by the card, a solid contact that can be switched by contact or separation with the movable contact, and is disposed between the armature and the movable contact And the card Ο 回归 the return spring of the above card. The movable contact point and the fixed contact point are respectively disposed on both sides of the center line of the card extending along the card μμ, +, and wind in the lunar direction to form a combination, and the above is a normally open connection. Point, the combination of the other side of the eight-side of the above center is on the upper side, and the other side of the line is the normally closed contact. [Embodiment] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, the following instructions will be used. In the middle of the tiger's month, the vertical direction is based on the first drawing. (Fourth embodiment) (D) FIG. 1 is an exploded perspective view of the electromagnetic relay of the first embodiment of the present invention. Figure 2 shows the group status of the group. The map of the mouth is shown in Figure 2. This electromagnetic relay! is a safety with a minimum joint structure, that is, including a one-to-one 3 connection of the dice joint 3, the safety is normally open (10) contact 'b contact 3 is normally closed (N Can For the sake of convenience, the arrangement direction of the contacts 2, 3 is regarded as the left and right direction. As shown in Figures 1 to 3, 'this electromagnetic relay 1 includes the body (electromagnetic 7 201042695 relay body) 4, electromagnet square 5. Armature block 6, return spring 7, card 8, upper cover 9 and contacts 2, 3. The body 4 is made of insulating and flame retardant p B τ (polybutene versus stupi dicarboxylic acid S 曰) The main body 4 includes a long-axis base 41 on which the electromagnet block 5 is mounted at one end, a pair of side walls 42, 43 disposed at approximately the center of the base 41, and an electromagnet block connecting the side walls 42, 43 5 the side of the side and the reinforcing member 44 of the side walls 42, 43, the insulating partition wall of the portion connecting the sides 2, 3 of the side walls 42, 43, extending from the central portion of the insulating partition wall and the isolation point 2, the insulating partition 46 of the contact 3 and the other end of the base 41 hold the terminal block 47 of the contacts 2, 3. The armature block 6 and the return spring 7 are housed in the region where the side walls 42, 43 and the insulating partition wall 45 are partitioned. On the terminal block 47, the terminals 21, 22 of the contact 2 and the terminals 31, 32 of the contact 3 are mounted. The card 8 is slidable on the insulating partition 45. Figures 4(a) and 4(b) are vertical sectional views of the electromagnetic relay 1. Further, in Fig. 4, the illustration of the upper cover 9 is omitted. 4, the structure of the electromagnet block 5 and the armature block 6 can be understood. As shown in Fig. 4, the electromagnet block 5 includes a coil 51, a bobbin 52 for winding the coil 51, and a bobbin 52 inserted therein. The hole has a substantially l-shaped roll μ, a core 53 of 55, and a pair of coil terminals 56 provided on the flange portion 52a on the lower side of the bobbin 52. A coil 51 is connected to the upper side of each coil terminal 56. The lower end of each coil terminal 56 is pressed into the base 41 and protrudes as a terminal to the outside. The armature block 6 is not entirely formed of soft iron or the like, and includes a daughter card 61 of a plastic molded article for weight reduction. a movable plate 62 composed of soft iron or the like and a permanent magnet 63 having a rectangular parallelepiped shape of 201042695. The movable plate 62 forms a moment The flat plate is connected to the sub-card 61. The permanent magnet 63 is fixed to the surface of the movable plate 62. As shown in Figs. 1 and 2, a pair of pins 64 are provided on the left and right sides of the sub-card 61. The pair of pins 64 are provided. The holes 48 formed in the side walls 42, 43 of the base 41 are respectively embedded, whereby the armature block 6 can be freely rocked and displaced toward the arrow 69 and its opposite direction. When the armature block is mounted on the base 41, it is movable. The upper end of the plate 62 faces the vehicle body 54 on the upper side of the electromagnet block 5, and the lower end portion faces the vehicle body 55 on the lower side of the electromagnet block 5. The tongue piece 65 is extended from the upper end portion of the sub-card 61. The tongue 65 is locked to the locking hole 81 formed in the card 8, whereby the displacement drive can be made toward the arrow 82 of the card 8 and its opposite direction. The return spring 7 is formed by a stamping process and a bending process of a thin elastic metal plate, as shown in Fig. 1, to form a slightly γ-shape. The lower end portion of the return spring 7 is increased in rigidity by folding (coinciding) the metal plate. The lower end portion is press-fitted into the base 41 between the armature block 6 and the insulating partition 45 as shown in Fig. 4. The leading ends 75, 76 of the upper ends 73, 74 are inserted into the return magazine G holes 83, 84 of the card 8. Thereby, the card 8 is biased in the opposite direction of the arrow 82. At the lower end 7; 1 ' The locking projections 71 & 71b are formed from the base 41. The contacts 2' 3 include (four) contact terminals 21, 31 and movable contact terminals 32. These terminals 21, 22 and terminals 31, 32 are elastic by punching. The thin metal plate and the curved surface are formed into a crank-shaped side surface. In the curved portion ... and the curved portion ..., ..., in order to make the bent portion 22a' 32a of the movable contact terminal 22, 32 have higher rigidity" The above metal plate is folded into 2 « at the end of the base 41 to the mounting groove pressure 9 201042695 formed on both side portions into the curved portions 21a, 22a and the curved portions 31a, 32a, and then fixed by using an adhesive. , the rotation of the terminals 21, 22 and the terminals 31, 32 in the direction of the arrow 85 and its opposite direction To the suppression, the states are approximately parallel to each other and face each other. The terminals 21, 22 and the lower end portions 21b, 22b of the terminals 31, 32 and the lower end portions 31b, 3 2 b protrude from the base 41, thereby serving as relay terminals. The contact elements 21 d, 2 2 d and the contact elements 31 d, 3 2 d are fixed by the pressure-receiving upper arm portions 21c, 22c and the upper ends of the upper arm portions 31c, 32c. The terminals 21, 31 are provided with rigidity ribs 21e, 31e for the upper arm portions 21c, 31c, and are formed at the lower portions of the contact elements 2id, 31d. The movable contact terminals 2, 2, 2 are pressed, and the base 41 is pressed. The base end portion of the side is flexed, whereby the contact members 21d, 22d and the contact members 31d, 32d are in contact in a state of approximately parallel. On the other hand, the movable contact terminals 22, 32 are capable of easily flexing the upper arm portion. 22c, 32c, slits 22e, 32e having portions formed on the side of the base 41. The slits 22e, 32e may not be separately provided. Between the terminal 21 and the terminal 22 and between the terminal 31 and the terminal 32, the base is provided Insulating partition wall 4 for insulating each other. Insulating partition wall 4 is insulated In the storage space of the joints 2, 3 of the wall 46, the contact elements 21d, 22d and the contact elements 31d, 32d which are in contact with each other are separated (separated). Further, the insulating partition 40 is disposed while being dissolved. It is ensured that the contact gap is 〇. 5_ or more. Further, the insulating partition 40 is provided to prevent a short circuit when the return spring 7 is bent. Although the coil 51 is in a non-energized state, the card 8 is biased toward the electromagnetic by the elastic force of the return spring 7. The side of the iron square 5, that is, toward the opposite side of the arrow 82, 201042695, produces a sliding displacement. The card 8 is slidably displaced in the direction of the arrow 82 by the energization of the coil 51. The fixed contact terminal 21 and the movable contact terminal 32 are disposed on a straight line perpendicular to the sliding direction of the card 8. Further, the movable contact terminal 22 and the fixed contact terminal 31 are disposed on a straight line perpendicular to the sliding direction of the card 8. On the side of the center line 8x b (NC) contact 3, the fixed contact terminal 31 is disposed inside (in the opposite direction to the arrow 82), and the movable contact terminal 32 is disposed outside (arrow 8 2 direction). On the side of the center line 8 X a ( n 〇) contact 2, the movable contact terminal 22 is disposed inside, and the fixed contact terminal 21 is disposed outside. At the leading end portions of the upper arm portions 22c, 32c of the movable contact terminals 22, 32, tabs 22f, 32f that are locked to the locking holes 86, 87 of the card 8 are provided. As shown in Fig. 3, the tongue piece 22f and the tongue piece 32 are provided with projections (locking claws) 22g and projections (locking claws) 32g which are formed by bending the tip end. On the locking hole 86 and the locking hole 87, projections 86a, 86b, 86c and projections 87a, 87b, 87c are formed, respectively. The projections 86a, 86b, 86c and the projections 87a, 87b, 87c sandwich the plate-like tongue piece 22f and the tongue piece 32f, and the locking projections (locking claws) 22g and the projections (locking claws) 32g. Thereby, the tongue piece 22f and the tongue piece 32f are locked to the locking hole 86 and the locking hole 87. The card 8 is slightly U-shaped when viewed in the plane direction. The locking hole 81 and the pair of right and left return spring holes 83, 84 that are locked to the above-described daughter card 61 are formed in the above-described 1"-shaped connecting portion 80. The pair of right and left locking holes 86, 87 are formed on the side of the arm portions 88, 89 of the u-shaped body. This card 8 is subjected to the tongue 65 of the daughter card 61, back

The tip ends 75, 76 of the Ip spring 7 and the tongues 22f, 32f of the movable contact terminals 22, 32 are supported. The height of the upper end surface 45a of the insulating partition 45 is set so as not to be in contact with the back surface of the base end side of the arm portions 8, 8 8 . The height of the step surface 46a formed on the upper end side 11 201042695 of the insulating partition wall 46 is set so as not to come into contact with the lower end faces 88b, 89b of the lowering pieces 88a, 89a formed from the inner facing faces 88c, 89c of the arm portions 88, 89. The card 8 is guided by the following two-point configuration to produce a sliding displacement. First, between the hanging pieces 88a, 89a, the upper end portion 46b of the insulating partition 46 is sandwiched, and 'between the inner facing faces 88c, 89c of the arms 88, 89, the top plate 91 from the upper cover 9 is held. The guide 91a is formed by hanging down. Next, the segment portions 88d and 89d formed by the hanging pieces 88a, 89a on the inner facing faces 88c, 89c of the arms 88, 89 are fitted into the lower end surface 91b of the guide 91a. The upper cover 9 is made of a resin molded article such as a transparent polycarbonate to define the switching states of the contact elements 21d, 22d and the contact elements 31d, 32d. The upper cover 9 is formed in a box shape in which the bottom surface is open. The upper cover 9 is placed on the main body 4 shown in Fig. 2 from above in a state in which the components are assembled, and the inner peripheral surface of the lower end of the upper cover 9 is connected to the base 41. In the electromagnetic relay unit configured as described above, in the non-energized state of the coil 51, as shown in Figs. 2, 3, and 4(a), the armature block 6 is elasticized by the return spring 7. It is offset by the card 8 toward the arrow direction. Thereby, the card 8 is displaced in a direction opposite to the arrow 82, that is, toward the side of the electromagnet block 5. The movable contact terminals 22, 32 latched to the card 8 also face the side opposite to the arrow 82 toward the side of the electromagnet block 5, causing a bending deformation. Thereby, the b (NC) contact 3 is turned on, and the a_ contact 2 is blocked. This is a good match, on the line Deng Di 4 (b) map ^ Block 6 against the return of the card in the 8th bullet c Pingping yellow f's elastic force 'oriented and! 69 is shaking in the opposite direction. By the side of the blade 8 facing the arrow 82 direction 201042695 Ρ facing the opposite side of the electromagnet block 5, a sliding displacement occurs, and the movable contact terminals 22, 32 locked to the card 8 are also oriented in the direction of the arrow 82, that is, toward the direction On the opposite side of the electromagnet block 5, a tortuous deformation occurs. Thereby, the b (NC) contact 3 is blocked, and the a (N0) contact 2 is turned on. In the electromagnetic relay cartridge of the first embodiment, projections 75a, 76a are formed on the leading end portions 75, 76 of the return spring 7, respectively. On the return spring hole μ, 84, relative to the tip end portion 75, ? 6' forms a sudden connection with its thickness direction

From 83a, 83b, 83c and protrusions 84a, 84b, 84c. Thus, one of the locking holes includes a return spring hole 83 and projections 83a, 83b, 83c, and the other locking hole includes a return spring hole 84 and projections 84a, 84b, 84c. 5(a) is a perspective view showing the tip end portion 76 of the return magazine 7, and Fig. 5(b) is an enlarged view of the tip end portion 76 of the return magazine 7 and the vicinity of the return spring hole 84 of the card 8 stuck thereto. Floor plan. Further, in the fifth (a) and the second drawings, the tip end portion 76 and the return spring hole 84 are shown in the vicinity, but the other end portion 75 and the return spring hole 83 have the same structure. The return spring 7 is formed by press working and bending a thin metal plate having elasticity. By the reinforcement of the sheet metal, projections 75a, 76a are formed at the leading end portions 75, 76, respectively. This electromagnetic relay 1 can be used as a safety relay or the like. In this electromagnetic relay 1, a pair of contacts 2 and b contacts 3 are disposed on both sides of the center line 8x of the card 8. Even with this minimal structure, the electromagnetic relay (also has a return spring 7 between the armature 6 and the movable contact 22' 32, so the protrusions and protrusions 76a, the protrusions, (4), 83c and the protrusions 8 are busy. , - respectively, is locked thereon. Thereby, the card 8 can be locked by the return spring 7, and the latching state between the card 8 and the armature 6 can be maintained by the 13 201042695. The dot terminal 22 is like a tongue, for example, a card... an arm..., such as the card 8 of which the _ end side is locked, and the other end side of the card 8 is received by the leading end 75, 76 of the return magazine 7 Therefore, even if the collision of the direction 68 shown in FIG. 4 or the vibration during the operation is applied to the electromagnetic relay d, the locking between the armature 6 and the card 8 can be suppressed from being unlocked. 'The reliability can be improved. Further, the protrusions 75a and 76a of the tip end portion & 76 of the return spring 7 are formed by sheet metal processing, so that the unblocking prevention structure of the card 8 can be realized in a simple structure. a) and FIG. 6(b), a plurality of protrusions may be provided in one of the leading ends 76 (in the sixth figure, the protrusions 76b) 76c) A plurality of protrusions may be provided at the other end portion 75. The protrusions 76b formed at the tip end portion 76 by the return spring 7a' are respectively locked to the projections 84b, 84c formed on the side faces of the locking holes. (Second embodiment) Fig. 7(a) is a perspective view showing the tip end portion 76 of the return spring 7b in the electromagnetic relay i according to the second embodiment of the present invention, and Fig. 7(b) is a view showing the return spring 7c. A perspective view of the tip end portion 76. As shown in Figs. 7(a) and 7(b), these return springs 7b, 7c are similar to the return springs 7, 7a in the first embodiment. Thus, in the corresponding portion The same reference numerals are attached to the same reference numerals, and the description thereof is omitted. In the return springs 7b, 7c, two slits 77 in the vertical direction are formed in the vicinity of the projections 76a and the projections 76b. With these slits 77, the leading end portion 76 is The cut into three parts is (divided into a part). In the regressive genus 14 201042695 7b shown in Fig. 7(a), the protrusion 76a is formed in the divided portion in the middle, as shown in Fig. 7(b) In the return spring 7c, protrusions 76b and protrusions 76c are formed in the two divided portions on both sides. By these return springs 7b, 7c 'The spring characteristic of the tip end portion 76 is easily deformed. Therefore, when the tip end portion 76 is inserted into the locking holes 83, 84 of the card 8, the spring characteristics of the return springs 7b, 7c are appropriately deformed, and the effect of suppressing the card from being cut is improved. (3rd embodiment) FIG. 8(a) is a perspective view showing the tip end portion 76 of the return spring 7d in the electromagnetic relay 1 according to the third embodiment of the present invention, and FIG. 8(b) The figure is a perspective view showing the tip end portion 76 of the return spring 7e. As shown in Figs. 8(a) and 8(b), these return springs 7d, 7e are similar to the return springs 7A, 7c of the second embodiment. Therefore, the same reference numerals will be given to the corresponding parts, and the description will be omitted. 〇 In the return springs 7d, 76, the tip end portion 76 is divided into three portions (divided portions) by two strips in the up and down direction = slits 77. In the rebounding play: 7d shown in Fig. 8(a), a projection 76d is formed in the divided portion in the middle. Is the return impeachment in Figure 8(b)? In Fig. 6, the projections 76e and the projections 76e are formed in the two divided portions on both sides. /珉大 Insert::: square: semi-cylindrical shape. The axial direction of the protrusion (4) is perpendicular to the leading end portion of the card 8, and is oriented in a direction parallel to the return spring 7d (returning the spring (four) to the plate portion of the return r: side). The protrusions 76 (1 protrude in a direction perpendicular to the flat plate portion of the same ± wide spring 7d. - Each of the protrusions 76e has a semi-cylindrical shape. The direction of each protrusion, the shaft 15 201042695 is perpendicular to the direction in which the card 8 is inserted into the locking hole, The direction is parallel to the direction of the flat plate of the return magazine 7d. The protrusions 76e are protruded in a direction substantially perpendicular to the flat plate portion of the return spring 7d. Thus, the protrusions 76d, 76e have a semi-cylindrical shape because, The protrusions 仏 and the protrusions 84c of the inner surface (inner peripheral surface) of the return spring holes 83, 84 are in surface contact or linear contact. Therefore, it is possible to suppress the effect of cutting the card 8 by cutting. Further, the protrusions 76d, 76e can be easily The shape is stabilized by the bending process of the money end (4). Further, each of the projections 76d and 76e has an arcuate cross section and has a curved surface that protrudes in a direction substantially perpendicular to the flat plate portion. Therefore, it can also serve as a reinforcing tip end portion. In addition, the protrusions 76d and the protrusions 76e may be replaced by a semi-cylindrical shape or the like in place of the semi-cylindrical shape. The so-called semi-cylindrical shape refers to the 8th (a) figure. The semi-cylindrical projection 76d and the projection 76e shown in Fig. 8(b) have a semi-cylindrical shape in which the metal is filled with a metal. When such a semi-cylindrical shape is used, it is used to enhance the semi-cylindrical shape. The action of the rib of the divided portion of the tip portion 76 is raised to the south (the fourth embodiment). Fig. 9(a) is a view showing the tip end portion 76 of the return spring 7f in the electromagnetic relay j of the fourth embodiment of the present invention. Fig. 9(b) is a perspective view showing the tip end portion 76 of the return spring 7g. Fig. 1 is a cross-sectional view showing the vicinity of the return spring hole 84 of the card 8 on which the tip end portion of the returning elastic crystal is locked. As shown in Fig. 9(a) and Fig. 9(b), these return springs 7f, 7§ are similar to the return springs 7d, 7e. Therefore, the same part is assigned to the corresponding part 201042695, and the description is omitted. The return springs 7f and 7g are formed into a shape in which the tip end portion 76 is divided into three by sheet metal working. In other words, in the return springs 7f, W, two slits 77 extending in the up and down direction are formed on the tip end portion ^. The plurality of divided parts after the division in each apex (four) are viewed from the plane, _ mineralization tooth Ο ❹ As shown in Fig. 9U), in the regression elastic crystal 7f1?, the plurality of divided portions include two divided portions composed of the straight line portion 76h and a divided portion having a step 76j formed by bending processing, and these portions are alternately arranged. The two divided portions composed of the straight line portion (10) protrude from the protrusion 76f of the divided portion of the lower portion (four) and the lower portion of the tip end (four) on the same plane in which the portion of the plane is -%, having the step 76]. The divided portion is locked to the upper seek hole. In this return spring 7!, the upper portion of the step 76j acts as a protrusion = m. When the return spring is viewed from the plane, the two divided portions composed of the straight partial shirt are composed. Side by side in the same column. In addition, in this embodiment type - each knife cut. h is stuck to the locking hole, however, the invention is not limited thereto. At least one of the plurality of divided portions may be locked to the locking hole. As shown in Fig. 9(b), in the return spring 7 §, the plurality of divided portions include a divided portion composed of the straight portion 76i and two points _ which are formed by bending processing, and the portions are alternately arranged. . Is the divided portion composed of the straight line portion m in the return spring 7 § and the leading end portion? The lower portion of 6 is on the same plane, and on the center side of this plane, the protrusion % having the divided portion of the step 76k protrudes. Each of the divided portions is locked to the above-mentioned locking hole. In this return spring 7 palace, the upper part of the section acts as a projection 76g. When viewing the return spring from a plane, two 17 201042695 cutter sections having a step difference 76k are arranged side by side on an i,, /V, column. Further, in this embodiment, each of the parts is partially locked to the card, but the present invention is not limited thereto. At least one of the plurality of divided pots may be locked in the locking hole. The resulting configuration is such that, in order to configure a column on one of the columns, a portion consisting of straight portions 76h, 76 is arranged on the other column with 77 portions having a step difference 76j, 76k. _ 早 早 早 早 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , In other words, the projections 76f, 76g protrude in a direction opposite to the disengaging direction 79 on the plane containing the breech wet n ~ dance springs 7f, 7g at the lower portion of the tip end portion 76. 76. The direction opposite to the mold direction 79 forms a step J, _76k. In this case, the burrs generated by the sheet metal processing are formed as in the first mold / / the mold release direction 79 of the mold. As described above, the projections 76g are straight lines. The segmented portion composed of the portion 76h and (6) protrudes in the direction opposite to the direction of the 2-mesh direction m. Therefore, the burr 761 is easily accommodated to the divided portion composed of straight, and 76, and has a step difference of 7 and 76k. The space between. So when inserting the tip 76 into the card The card of 8 can prevent the burr 761 from coming into contact with the side surface of the locking hole. Thereby, the card 8 can be prevented from being cut, so that generation of powder can be suppressed. By using such an electromagnetic relay for controlling the working machine, The control device such as the production line can be miniaturized and highly reliable. [Outline of the implementation type] The following outlines can be summarized. 18 201042695 (The electromagnetic relay of the above embodiment includes an electromagnet, The electromagnet generates a rocking displacement armature, a card that is locked with the electric drag and is slidably displaced by the armature of the armature, and a movable contact with the chip card 2, a fixed contact that switches the contact state by contact or separation of the movable contact, and a return spring that is disposed between the armature and the movable contact and that locks the card. The movable contact is respectively matched with the fixed contact And being disposed on both sides of a center line of the Ο 〇 card extending along the sliding direction of the card to form a combination. The combination of the side of the rib line is a normally open connection, the name The combination of the other side of the center line at the +, + ^ ′ is a normally closed contact. Here, the first and middle include a return spring that is disposed on the armature and the movable contact and that locks the card. 'When a vibration is applied to a collision or action, the card is received by the return spring even if the minimum contact structure that is easily unlocked by the engagement between the armature and the card is used: The card can be stably maintained in the locked state between the card and the armature. The card can be prevented from being detached from the electric drag. Thereby, the reliability of the electromagnetic device can be improved. The above-mentioned spring can be provided with a sheet metal at the tip end portion thereof. The formed card may have a stop hole inserted into a front end portion of the return spring, and the protrusion may be a structure that is locked to the locking hole. In this type, the projections can be easily formed by sheet metal processing so that the projection of the simple structure obtained by the formula can be locked to the locking hole of the card, and the card can be locked by the elastic return spring. (3) The return spring may have a slit in the vicinity of the protrusion. 19 201042695 In this type, a slit is provided in the vicinity of the protrusion, so that the spring characteristic which is easily deformed is attached to the protrusion of the force. By borrowing &, when the returning elastics are inserted into the card hole of the card, the shape of the return spring is moderately deformed, and the effect of the card is suppressed, and the powder can be suppressed. (4) The above protrusion may have a semi-cylindrical shape, and its surface may be in direct or surface contact with the above-mentioned locking hole. In this type, the projection has a semi-cylindrical shape, and the surface of the projection is in a straight contact or a surface contact, so that the effect of suppressing the cutting of the card can be obtained. Further, the projection of the semi-cylindrical shape can be easily formed by bending the front end portion. Moreover, since the forming is easy, the shape (quality) is stable. Further, the above protrusions may have a semi-cylindrical shape. (5) The structure may be that the return spring is divided into a plurality of shapes by the sheet metal reinforcement forming, and the plurality of divided portions after the division of the Prophet in the Kazan i Prophet 4 are arranged in a zigzag shape. The sheet has a locking hole inserted into the front end portion of the return spring, and the plurality of divided portions are locked to the locking hole. In this type, it is easy to form a plurality of divided portions arranged in a zigzag shape by sheet metal processing by 柘 U hiccup. In the above-described plurality of divided portions which are obtained in this manner and which are flexible and simple in structure, the card is locked to the card locking hole, whereby the card can be locked by the return spring. (6) The plurality of divided portions are linearly divided and the step formed by the bending process, and the portions are alternately arranged, and the cross-cut is preferably in the above-mentioned bending process, toward and away from the mold.脱20 201042695 The bending process is performed in the opposite direction of the mold direction. In this type, it is formed by the direction opposite to the demolding direction of the mold: the difference between the burrs generated by the sheet metal processing along the mold is: The dog is easily accommodated from the linearly divided portion toward the opposite direction of the demolding direction. The λ burr is easily accommodated in the space between the linear divided portion and the defective divided portion. So when the return bomb is inserted

Ο When the hole is locked, the side of the burr can be prevented from coming into contact with the side of the locking hole. Thereby, the mouth suppresses the card from being cut, so that generation of powder can be suppressed. (The control device of the above-described embodiment includes the electromagnetic relay described above, and even if a small electromagnetic relay is used in a control device for controlling a working machine, a production line or the like, high reliability can be obtained. The present invention is not limited to the above-described embodiments, and various modifications, improvements, etc. can be made without departing from the spirit and scope of the invention. <First Reference Example> As shown in Fig. 26, a six-pole contact structure or four poles is provided. In the electromagnetic relay 1 of the contact structure, the card 107 locked by the locking claws 1〇lc1 to 1〇6c is held by the locking claws l〇lc to 106 (the 6 locking portions, so the card It is difficult for the claws 10lc to 106c to be detached from the card 107. On the other hand, as shown in Figs. 27 to 29, when the contact 4 of the contact is taken, the movable contacts 123a, 124a are along the width direction of the card 121. (As shown in Fig. 28, when the electromagnetic relay 12 is rectangular, the short side direction) is arranged on an approximate straight line. Thus, the card 1 21 is only held at the tip end of the movable contact i23a, 124a arranged along the above width ^ , so, when the second picture is not in the direction of 128 When the vibration during the collision or action is applied to the electromagnetic relay 21 201042695 120, it is possible to unlock the armature 126 and the card ΐ 2 ι. Therefore, in the first reference example, the purpose is to provide a magnetic relay and use the electromagnetic relay. "The electric power is constructed with a few contacts, and it can also be determined to grasp the state. - Maintain the card and the armature between the locks, and the same symbol of your brother's style." In addition, the overall structure of the electromagnetic benefit 1 of the first reference example is almost the same as that of the first embodiment described above, so

In the following description, only the features of the first example will be described in detail below. In the electromagnetic relay unit 1 of the first reference example, the card 8 is guided by the following three-point structure to cause sliding displacement. The tongue wash 7 is more than a hundred, first, between the hanging pieces 88a, 89a, sandwiching the upper end of the insulating partition 46, B.丨4bb', and the guide rails 91a formed from the top plates 91 of the upper cover 9 are sandwiched between the inner facing faces 88c, 89c of the arms 88, 89, and then the inner faces of the arms 88, 89 are facing each other, and the s9c is set.

The segment 88d, _ formed on the lower piece 88a, 893, is embedded in the guide rail 9U

Under the knowledge of 91b. Further, both side portions of the joint portion 8 are guided on the inner wall surfaces of the side walls 42, 43. As shown in Figs. 11 to 13, in the electromagnetic relay 1, the card 8 has large ridges 80a, 80a' which extend from the side portions on both sides of the center line 8 of the card 8 toward the side walls 42'43, respectively. Each of the projections g〇a is provided at the end of the card 8 in the opposite direction of the arrow 82. As shown in Figs. 11 and 12, guiding grooves 42a, 43a are formed on the side walls 4 2, 4 3, respectively, which extend toward the sliding direction of the card 8 and are respectively fitted by the projections 80a, 80a. 22 201042695 Fig. 15 is a side view of the body 4 of the first reference example. Fig. 16(a) is a plan view showing a card of the first reference example, and Fig. 16(b) is a side view thereof, as shown in Figs. 16(a) and 16(b), each of the projections 8a At the tip end of the cylindrical shaft portion 80al, there is a shape of the hemisphere 8〇a2 as a guide. Each of the projections 80a presses the card 8 between the side walls 42, 43 in a state where the side walls 42, 43 are slightly separated in the direction in which they are separated from each other, whereby the projections 8a are embedded in the guide grooves 42a, 43a. . At this time, along the sliding direction, the tongue piece 65 which is displaced in the direction opposite to the arrow 82 is positioned at the position of the locking hole 81, and the leading end portions 75, 76 of the return spring 7 are positioned at the return spring hole (10). , at the position of 84. The card 8 deforms the return spring 7 and is pressed between the side walls 42, 43 on the one hand. Thereby, the armature 6 and the return spring 7 can be locked to the card 8. Thereafter, the tongues 22f of the movable contact terminals 22, 32 are positioned at the positions of the locking holes 86, 87, and pressed into the locking holes 86, 87, thereby making the movable contact terminals 22, 32 card End at card 8. This completes the installation of the card 8. 〇 Figures 17(a) and 17(b) show the action of the card 8. The i7(a) diagram is the same as the 14th (a) diagram, and indicates the position of the card 8 in the non-energized state. Fig. 17(b) is the same as Fig. 14(b) and shows the position of the card 8 in the energized state. As shown in Figs. 7 (a) and 17 (b), when the card 8 is slid along the sliding direction, the projections 80a, 80a move in the guide grooves 42a, 43a. The end of the card 8 in the direction of the arrow 82 is latched by the movable contact terminal 22 32. The end of the side opposite to the arrow 82 of the card 8 is raised by the a to the guide groove 42a, 43a. 80a, 80a and got stuck. Thereby, 23 201042695 enables the locked state of the configuration with a small number of contacts. It is also possible to stably maintain the card 8 and the armature 6 by using such an electromagnetic relay 1 on a control device for controlling the machine, the production line, etc. of the work 1, and it is possible to achieve high reliability in the collision #目+哥吋Sexual control device. (Other types of the first reference example) FIGS. 18(a) and 18(b) are side views showing the main body 4', 4" of the i-th reference example, respectively. The figure shows a plan view of a card 8 of another type of the i-th reference example, a picture of the vicinity of the protrusion of the enlarged piece 8' in the l9(b), and a side view of the card 8 in the 19th (c). The body 4''4" is similar in construction to the body 4 described above, and therefore, the same reference numerals will be given to the corresponding parts, and the description will be omitted. As shown in Fig. 18(a), in the body 4', the guide grooves 42a, 43a formed in the side walls 42, 43, are on one side of the sliding direction of the card 8 (the side opposite to the arrow 82) The protrusion 8〇a is extended beyond the sliding range of the card 8 when it is normally used. On the extended end portion beyond the sliding range, the introduction grooves 42b, 43b are formed at the upper end portions of the side walls 42, 43 to form notches. These introduction grooves 42b, 43b communicate with the guide grooves 42a, 43a. Therefore, the projections 8a, 80a of the card 8 are introduced into the guide grooves 42a, 43a through the introduction grooves 42b, 43b, respectively. As shown in Fig. 18(b), in the body 4", the guide grooves 42a, 43a formed in the side walls 42", 43" are over the other side of the sliding direction of the card 8 (the side in the direction of the arrow 82) The projection 80a is extended in the sliding range when the card 8 is normally used. On the extended end portion beyond the sliding range, the introduction grooves 42b, 43b which are the same as those described in the above paragraph 24 201042695 are provided. With such a simple configuration, The projection 80a is simply introduced through the guiding grooves 42a, 43a. Further, when the card 8 is embedded in the side walls 42, 43, (or the side walls 42", 43"), it is not necessary to make the side walls 42, 43, (or side walls) ",, 43") is deformed and expanded to the outside, so that the projections 8a can be prevented from being cut, and the main bodies 4', 4" and the card 8 can be prevented from being damaged. Further, in the body 4' of Fig. 18(a), the introduction groove 42 is set more than the four strokes.

In the opposite direction of the arrow 82, the history is placed at the end of the guide groove 42a, 4 on the side of the card 8 at the displacement position in the non-excited state of the electromagnet block 5. On the other hand, in the main body 4" shown in Fig. 8(b), the introduction groove 42? 43b is provided on the side of the direction of the arrow 82, that is, the change of the card 8 in the exciting state of the electromagnet block 5 The end portions of the guide grooves 42a, 43a on the side of the position (pressing position). Thus, the introduction grooves 42b, 43b may be formed at the end of either side of the sliding direction of the card 8, however, as in the 18th ( b) the body 4 of the figure, as shown in the end of the card on the side of the displacement position of the electromagnet block 5 in the excited state, when it is in the non-excited state, the protrusion 8〇a is arranged The guide groove 42&amp;, 43a is closed at the end (the end of the introduction groove 42b, 4 is not provided), so that even if some collision is applied to the electromagnetic relay, the protrusion 80a of the card 8 can be suppressed from passing due to the collision. The groove 42b is introduced into the groove 42b and peeled off, and the impact resistance can be further improved. Further, as shown in Figs. 18(a) and 18(b), if the introduction groove 42b, 43b is provided, when the protrusion 80a is inserted into the guide bow When the sulcus 42a, 4^, the stress applied to the card 8 and the stress applied to the projection 80a become small. Fig. 19(a) shows the first reference. Other types of cards 8, 25 201042695 plan view, 19 (b) is a picture of the vicinity of the protrusion of the enlarged card 8', and the i9 (c) picture is a side view of the card 8'. As in the 19th (a) Each of the projections 80b of the 'card 8' has a pin shape, in which a portion having two outer diameters is connected to the axial direction. Each projection 8〇b includes a large diameter portion 80b2 and a small diameter portion 80b1. The large diameter portion 80b2 is The side faces of the card 8, respectively, protrude to the side of the guiding grooves 42a, 43a. The small diameter portions 8 〇 bl & the large diameter portion 80b2 respectively protrude to the side of the guiding grooves 42a, 43a. As shown in Fig. 19(b) The small-diameter portion 8〇b1 of the tip end portion is fitted into the guide grooves 42a and 43a. The large-diameter portion 80b2 on the proximal end side is located between the side walls 42, 43 and the side surface of the card 8. The small-diameter portion 80M and the large-diameter portion 80b2 The step surface 8〇b3 is located at a peripheral portion of the guide grooves 42a and 43a, and slides over the peripheral portion. Thus, the side walls 42, 43' (or both side walls 42) of the card 8' and the body 4', 4", The gap between the 43) has the large diameter portion 8〇b2 of the protrusion 80b, so that the tolerance of the card 8' can be reduced. Thereby, the stable sliding of the card 8 can be realized. ° Set this #又差面8 0 b 3 has an effect on the electromagnetic relay 1 shown in the figure. This electromagnetic relay is used as a safety relay, etc., and is normally open in the opposite contact state. Normally closed, that is, a contact 2 and 1) contact 3, arranged in a one-to-one manner on both sides of the center line 8 of the card 8'. In the electromagnetic relay 1, the contact state is at the center line One side of the 8χ and the other side have different elastic forces on the card 8 plus the movable contact terminals 22, 32 on both sides, and then on the side of the closed contact (in the non-excited state, b) Connected..έ 3. The movable contact terminal 32 of the side is provided with the elastic force generated by the fixed contact terminal 31. Therefore, the difference in these elastic forces causes the card 8 to generate an arrow 85 (the rotation of the offset direction in the figure shown in Fig. 201042695 13) is a loss of the movable contact terminal 32 (pressing in), and sometimes the contact action is performed. Therefore, the protrusions 8〇b of the above-described two-stage structure suppress the card 8, and the rotation of the eight=type card: 8' can be suppressed. Moreover, when the minimum contact configuration of the second b is employed 'Card 8, t is short, easy to rotate, and the contact points are distinguished and effective. In addition, as shown in Fig. 13, when the floor 2 and b contacts 3 are arranged along the direction substantially perpendicular to the axis (four), The protrusion of the two-stage structure 80b can be disposed on the side of the b-contact 3, and the position of the contact portion 8 can be contacted with the side walls 4 2, 42 due to the rotation of the arrow 85. In the case of a contact point 2, a pin which does not form the above-described step surface 80b3 can be used. Japanese Laid-Open Patent Publication No. Hei 08-235989 discloses an invention in which a ridge is provided on a surface of a card to be placed in insulation. Move on the rail on the upper cover to prevent the card from falling off, however, the above bulletin In the first reference example, the structure of the above-mentioned publication corresponds to the hanging piece 88a' 89a and the pair of the arm portions 88, 89 formed on the card 8, 8. The relationship between the sandwiched insulating partition walls 46. Further, the structure of the above-mentioned publication corresponds to the relationship between the inner facing faces 88c, 8〇c and the segments 88d, 89d of the arms 88, 89 and the guide rail gia of the upper cover 9. [Outline of the first reference example] The first reference example is summarized, and the following outline can be obtained. The electromagnetic relay of the first reference example causes the armature to be shaken and displaced by the electromagnet, and the rocking displacement is locked by The card on one end side of the armature is converted into a sliding displacement of the card, and the contact point shape can be switched by contacting or separating the movable contact of the other 27 201042695 of the card to the contact point. By means of the arms on both sides of the electromagnetic relay body, the displacement is restricted along the sliding direction of the card (the card is guided in the sliding direction by the two side walls). The side of the card on the end side thereof, Having a side wall extending toward the side The two side walls have guide grooves extending toward the above-mentioned, moon-moving direction and each protrusion is respectively embedded. Ο In this type, when the card slides in the sliding direction, the protrusion moves in the guiding groove. The end of one side is locked by the movable contact terminal, and the end of the other side of the + piece is locked by the protrusion fitted to the guide groove. Thus, even if a small number of contacts are used, It is also possible to stably maintain the locking state between the card and the armature and improve the reliability. In the electromagnetic relay of the first reference example, the guide groove exceeds the protrusion of the card on one side of the sliding direction of the card. The extending end portion is extended. The extended end portion is preferably open at an end portion of the side wall and communicates with an introduction groove into which the protrusion can be introduced. By this type, the projection can be easily introduced through the guide groove. Further, since the card is smashed into the two side walls, the two side walls are not deformed and expanded to the outside, so that the projections can be prevented from being cut, and the main body and the card can be prevented from being damaged. Further, in the electromagnetic relay of the first reference example, one of the sides of the card forming the introduction groove/monthly direction is preferably a position at which the card is displaced in the exciting state of the electromagnet. In this type, the introduction groove is formed at the end of the card on the side of the displacement position in the exciting state of the electromagnet block, so that when in the non-excited state 28 201042695, the protrusion is disposed at the end of the guide bow groove. Department (not at the end of the introduction groove). Thus, no matter what kind of collision is applied to the electromagnetic relay, the collision can suppress the falling of the card through the introduction groove, and the impact resistance can be further improved. Further, in the electromagnetic relay of the first reference example, the protrusion has a pin (four) 'where the portion having two outer diameters is connected to the axial direction, and the small diameter portion on the tip end side is embedded in the guide (four), and the large diameter of the base (10) The portion exists between the upper (four) wall Ο and the side of the card, and the step surface between the large diameter portion and the small diameter portion is slidable on the peripheral portion of the guide groove. The type 2 towel's small-diameter portion on the apex side is intended to guide the bow groove, and the base end side is between the side wall and the side of the card. The stepped surface of the small diameter portion and the large diameter portion is located at the peripheral edge portion of the guide groove, and slides on the peripheral portion. The gap between the sheet and the side wall of the body has a large U of protrusions, so that the card can be stably slid. ’],. In the electromagnetic relay of the reference example, in the electromagnetic relay of the reference example, the movable contact and the fixed sliding direction of the sheet extend on both sides of the center line of the card to form a ---combination, one of which The side is the hanging contact and the other side is the normally closed contact. ,", in this type, the aforementioned 2 #5: ϋ Sa this... - The structure of the protrusion suppresses the tolerance of the card, ^ The rotation from the direction can also be suppressed. And, • The minimum connection In the dot structure, the card changes: Therefore, it has an effect in particular. 4 Easy to turn, the control device of the first reference example includes the above-mentioned electromagnetic 29 201042695 relay of the reference example. With this type of control device, it can be realized <Second Reference Example> with High Reliability in Collision, etc. In the past, the electromagnetic relay was disclosed in Japanese Laid-Open Patent Publication No. 2005-294162. In the electromagnetic relay, as shown in Figs. 30 and 31, an electromagnet is used. The armature 1G2 generates a rocking displacement, so that the rocking displacement is changed to the sliding position of the card 1G3 by the card 1 locked to the ~~ end of the electric pole 102, by latching to the card 1〇3 The movable contact 104 at the other end is in contact with or separated from the fixed contact 105, and the state of the contact is switched. Further, for the collision at the time of dropping or the like, a pair of holes 104a are formed at the tip end of the movable contact 丨〇4. Inside the frame of 1〇3, forming the inlay The insertion hole 104a is enlarged by 1〇3a, and a locking piece 1〇3b for suppressing vibration of the tip end portion of the movable contact is provided. Thereby, the simple insertion operation enables the card 103 to be combined to the movable contact 1〇4. Further, the portion on the other end side of the restraining card 1〇3 is detached by the above-described collision. On the other hand, a pair of concave corners formed on the tip end side of the armature i 〇2 on the one end side of the card 1〇3 1. The protrusions 1〇3c formed inside the frame of the card 103 are embedded, whereby the card 〇3 can be combined to the armature 102. Further, the portion of the one end side of the card 1〇3 is suppressed from falling off due to the above collision. In the above-mentioned prior art, the armature 102 is an iron piece. The protrusion 103c of the card 103 composed of the resin molded article is embedded in the concave corner 102&amp; of the armature 102. However, when the armature 102 for driving the card 103 is used. When the weight is increased, there is a problem that the electromagnet ι〇ι is also enlarged. Therefore, it is considered that the portion of the yoke 30 201042695 106 that is attracted to the armature i 〇 2 is regarded as an iron piece, and the remaining portion is formed as a resin. However, in this case, when pushing the combination of Tian Jin in the month of the month, In the same tree shape, the card 103 or the armature 1〇2 will crack and grind the surface of the seat, and the convex portion lG2b forming the protrusion 1〇3c angle 102a will be cut, and there is a problem of powder generation. Therefore, the purpose of the second reference example is to provide an electromagnetic relay that transmits power of the electrical plug to the movable contact through the card and a control device using the electromagnetic relay writing, wherein even the armature and the card are combined with each other. It is possible to prevent the defects caused by the formation of the resin enamel molded article. The second reference example will be described below, and the same components as those in the above-described first embodiment will be denoted by the same reference numerals and will not be described. That is, the overall structure of the electromagnetic relay 1 of the second reference example is almost the same as that of the above-described third embodiment, and therefore, the description thereof will be omitted, and only the features of the second reference example will be described in detail below. In the electromagnetic relay unit of the second reference example, the following structure is obtained. In the electromagnetic relay 1, the armature block 6 has a permanent magnet 63, a movable plate Μ, and a sub-card 61 composed of a resin molded article. In this electromagnetic relay unit, the plate-like tongue piece 65 extending from the sub-card 61 is locked to the locking hole 81 of the card 8 in order to reduce the weight. This configuration is formed in the following manner. That is, after the tongue piece 65 is inserted into the locking hole 81, as shown in Figs. 21, 22, 24, and 25, at the tip end portion 650 of the tongue piece 65, the leading end portion 65 is formed. The locking claws 651, 652 that pass through the locking hole 81 are melted. As shown in Fig. 25, the tip end 4 650 of the tongue piece 65 has a shape that expands on both sides in the width direction of the locking hole 81. On the other hand, as shown in Fig. 22, the tongue piece 65 is engaged in the thickness direction of the tongue piece (3) 31 201042695 at a position symmetrical with respect to the center line 8x of the card 8 near the corner portion of the locking hole 81. Protrusions 81a, 8b and protrusions Me, 81d (indicated by diagonal lines). The projection 81 has a core 81b and a projection 8ic, and the back surface thereof is an inclined surface 81e (Fig. 25) which allows the tongue 65 to rock. With this configuration, as described above, "the weight is reduced, and even if the tongue 65 of the armature block 6 locked to the card 8 is formed of resin, the locking between the armature and the card can be stably maintained. body. The molten portion of the tip end portion 650 of the tongue piece 65 composed of the resin molded article is a locking claw 651, 652 having a claw portion 65h, π and claw portions 652a, 652b. The claw portions 651a, _ and the claw portions 652a, 652b are locked to the projections 仏, 81b and the projections 81c, 81d formed in the locking holes 81, and the tongues 65 are prevented from being separated from the locking holes of the card 8. As a result, it is possible to prevent the occurrence of defects in the resin molded article which causes cracks, powders, and the like at the time of locking. Further, the formation of the locking claws 651' 652 having the claw portions 651a, 651b and the claw portions 652a, 652b can be easily obtained with high reliability using a technique such as welding. Therefore, it is possible to use a bonding agent to engage the locking piece to prevent falling off, and it may be stuck to an undesired peripheral position, etc., and the problem may be caused by the use of an adhesive on the flat spring-like movable contact terminals 22, 32. As shown in Fig. 22, the tongues 22f, 32f of the card valley stopper hole 86' 87 are bent at their leading ends, and projections 86a, 86, 86 are formed on the locking holes 86, 87. And the protrusions W 87b, 87c, whereby the locking effect is generated. For example, as shown in the joint configuration of 5alb, etc., when the joint of the complex array is set along the material side (4) of the card 8, the locking of the plurality of movable contacts makes it difficult to fall off the tongue 65. However, as shown in the contact structure of the lalb of the second reference example, when the number of contacts of the sliding direction 82 of the card 8 32 201042695 is &quot;, the locking effect generated by the movable contact end is small, so The locking measures generated by the tip end W of the peak tongue piece 65 produced by the card claws 651, 652 of the portion 650 are particularly effective. Further, as shown in the second reference example, when the regenerative elastic crystal 7 is further provided between the electric contact terminals 22 and 32 on the card 8, and is displaced toward the direction opposite to the biasing direction of the return spring 7, That is, when the sheet 8 is displaced in the opposite direction to the arrow 82, the force acts in the direction of the two turns. When such a force acts, the tongue piece 65 is in this case, and the locking hole 81 is detached, and the reference example of the buddy 2 is particularly effective. By using the electromagnetic relay 1# power m丨 for the control device for controlling the t-wire of the working machine, the control can be lightened, and the special safety relay of the magnetic relay 1 is use. [Outline of the second reference example] The following summary is obtained by the second reference example.电磁 The electromagnetic relay electromagnet of the second reference example causes the electric drag to be shaken to cause the rocking displacement to be displaced by the sliding of the card card that is locked to the armature, and the card is locked to the card by The movable contact is fixed/contacted or separated 'switching contact state. The armature includes a movable plate having the above (4) and a permanent magnet to which a magnetic force is applied, and a daughter card which is formed of a tree-shaped molded article and which is attached to the movable plate. In the upper portion, a card tree molded product is formed which is locked to the card and which is formed by sliding the card and the tongue is insertable. The tip end portion of the tongue piece has an R 4 locking hole and a locking 33 201042695 claw formed by the melting of the tip end portion. In this type, in order to reduce the weight, even if the tongue piece 65 of the armature block 6 of the card 8 is formed of resin, the locking claw formed by the tip end portion of the melted tongue piece can be provided, so that it can be stabilized. Maintain the locking body between the armature and the card. By this, it is possible to prevent the occurrence of defects in the resin molded article which causes cracks, powders, and the like at the time of jamming. χ, the claws can be easily and highly reliable using techniques such as welding. Therefore, it is possible to use an adhesive bonding

The locking piece is prevented from falling off and may be stuck to an undesired peripheral position, etc., to prevent it from happening. In the case of a few electromagnetic relays, the card can be further locked into the return spring between the armature and the movable contact on the card. If the type is between the armature and the movable contact, Qiao back to the % of the yellow 'when the card is oriented opposite to the bias of the return spring... The person presses the card in the direction of the card. When such a force acts, the sheet is easily detached from the locking hole 81, which is particularly effective in this case. Brother 2

C. In the electromagnetic relay of the second reference example, it is particularly effective when one set of the above-mentioned contacts is provided toward the card. The card is as shown in the joint structure of '3', 2_, 5alb, etc., and when the sliding direction is set to the complex array contact, these two pieces are locked to make it difficult to fall off the tongue. The other four sides a, lalb, etc., the number of contact structures is ! group, the movable connection ... / card &quot; the direction of the contact point of the second reference example, "the locking effect is small, so, the Prophet The locking generated by the locking claws is particularly effective for the 201042695. The control device of the second reference example includes the above electromagnetic relay. By this type, the control device can be made lightweight, and it is particularly suitable for use as a safety relay that requires many electromagnetic relays. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view showing an electromagnetic relay according to a first embodiment of the present invention. 〇 ^ Fig. 2 is a perspective view showing the assembled state of Fig. 1. Figure 3 is a plan view of Fig. 2. Figs. 4(a) and 4(b) are vertical sectional views for explaining the operation of the above electromagnetic relay. a) Q is a perspective view showing a tip end portion of a return spring in the electromagnetic relay according to the first embodiment of the present invention, and FIG. 5(8) is an enlarged view of a front end portion of the return spring and a return spring hole of a card stuck thereto Flat surface view. Fig. 6(a) is a perspective view showing a modification of the tip end portion of the returning bomb in the electromagnetic relay according to the first embodiment of the present invention, and Fig. 10(10) is an enlarged view of the tip end portion of the return spring and the latching thereon. A plan view of a modification of the return spring hole of the card. Fig. 7(a) is a perspective view showing a tip end portion of a return spring in the electromagnetic relay according to the second embodiment of the present invention, and Fig. 7(8) is a perspective view showing a modification of the tip end portion of the return spring. Fig. 8(a) is a perspective view showing a tip end portion of a return spring of 35 201042695 in the electromagnetic relay according to the third embodiment of the present invention, and Fig. 8(b) is a perspective view showing a modification of the tip end portion of the watch-spring. The above-mentioned regression is shown in Fig. 9U). Fig. 9(8) is a perspective view showing a modification of the tip end portion of the crown spring. Fig. 9(8) is a perspective view showing a tip end portion of the electric regenerative elastic crystal of the fourth embodiment of the present invention. - Regression Figure 10 is a recapture of the return of the card at the apex of the returning bullet and the card on the top. The cross-section of the vicinity of the yellow hole of the plaque. Fig. 11 is an exploded perspective view showing the first rabbit to/the 12th rabbit electric appliance. Fig. 12 is a perspective view showing the assembled state of Fig. u. Figure 13 is a plan view of Fig. 12. Fig. 14U) and Fig. 14(b) are vertical sectional views for explaining the operation of the 丄th relay. ^ Electromagnetism Figure 15 is a side view of the body of the first reference example. Fig. 16(a) is a plan view showing a card of the first reference example, and Fig. 16(b) is a side view thereof. $ C, Figures 17(a) and 17(b) are side views of the 14th and 14th (b) diagrams. Fig. 18(a) and Fig. 18(b) are side views of the other forms of the body of the reference example. Fig. 19(a) is a plan view showing the card month of the other type of the first reference example, and Fig. 19(b) is a view showing an enlarged view of the vicinity of the wearing of the card, the l9(c) A side view of the above card. Fig. 20 is an exploded perspective view showing the Lei Cheng relay + magnetic relay of the second reference example. Fig. 21 is a perspective view showing the state of the group of Fig. 20. 36 201042695 Figure 22 is a plan view of Figure 21. Fig. 23(a) and Fig. 23(b) are a vertical sectional view for explaining the operation of the electromagnetic relay of the second reference example. Fig. 24 is a view enlarging the vicinity of the tongue, the mouth τ heart and the vicinity of the locking hole in Fig. 22. Fig. 25 is a sectional view taken along line XXV-χχν of Fig. 22. Fig. 26 is an exploded perspective view showing a conventional electromagnetic relay. Figure 27 is a vertical sectional view of another conventional electromagnetic relay. Ο Figure 28 is a cross-sectional view of the electromagnetic relay of the second figure cut in a plane parallel to the horizontal direction. Figure 29 is a cross-sectional view of the χχΐχ-χχ1χ line of Figs. 27 and 28. Figure 30 is an exploded perspective view showing another conventional electromagnetic relay. Fig. 31 is a perspective view showing the electromagnetic relay of Fig. 3; [Main component symbol description] 1 electromagnetic relay 〇ia, lb contact 1 0 0 electromagnetic relay 101~104 a contact 105~106 b contact 10la~106a contact 101b~l〇6b card hole l〇lc~l 〇6c card pawl 107 card 108 electromagnet 37 201042695 109 return spring 110 arrow 111 armature 12 0 electromagnetic relay 121 card 123 a contact 123a, 124a movable contact 1 2 5 electromagnet 1 2 6 armature 127 arrow 128 direction 124 b contact 2 a (normally open: NO) contact 21a, 22a, 31a, 32a curved portion 21b, 22b, 31b, 32b lower end 3 b (normally closed: NC) contact 21, 31 fixed contact terminal 2 2, 3 2 movable contact terminals 21c, 22c, 31c, 32c upper arm portions 21d, 22d, 31d, 32d contact members 21 e, 31 e ribs 22f, 32f tongues 22g, 32g projections 22e, 32e slits 38 201042695 4, 4' body 40, 45, 46 insulating partition 41 base 43" side wall 42, 43, 42, 42", 43, 42a, 43a guiding groove 42b, 43b introduction groove 4 4 connecting element 45a upper end face 〇

4 6 a-segment difference surface 46b upper end portion 47 terminal block 48 sub-L 49 groove 5 electromagnet block 51 coil Q 52 bobbin 52a flange portion 5 3 core 5 4, 5 5 轾 5 6 coil terminal 6 柩 61 61 Daughter card 62 movable plate 6 3 permanent magnet 39 201042695 64 pin 65 tongue 6 5 0 tip end portion 651, 652 card claw 651a, 651b, 652a, 652b claw portion 69 arrow 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g return spring 71 lower end 71a, 71b protrusion 73, 74 upper end 75, 76 front end 75a, 76a, 76b, 76c, 76d, 76e, 76f, 76g protrusion 76h, 76i straight portion 76j, 76k step difference 77 slit Release direction of 78 direction 79 mold 8, 8' card 8x center line 80 joint portion 80a, 80a', 80b, 80b', 80c, 80d, 80d', 80e protrusion 80al shaft portion 80a2 hemisphere 40 201042695 80bl small diameter portion 80b2 Large diameter portion 80b3 step surface 81 locking holes 81a, 81b, 81c, 81d protrusion 81 e inclined surface 82, 85 arrow 83, 84 return spring holes 83a, 83b, 83c, 84a, 84b, 84c protrusion 8 6, 8 7 card Stop holes 86a, 86b, 86c, 87a, 87b, 87c protrusions 88, 89 arms 88a, 89a down pieces 88b, 89b lower end faces 8 8 c, 8 9 c inner facing faces 88d, 89 d section 9 upper cover 91 top plate 91a rail 91b lower end surface 41

Claims (1)

201042695 VII. Patent application scope: 1. An electromagnetic relay, comprising: an electromagnet; an armature' generates a rocking displacement by the electromagnet; a card is locked with the armature and is oscillated by the armature Sliding displacement; movable contact, locking with the card; fixed contact, change point state; and return spring, stopping the card; can be cut and placed on the upper 14 by contact or separation with the movable contact Electric contact between the above movable contacts and the card Upward returning the movable contact and the above-mentioned ... ^ sigh; - along both sides of the center line of the card extending in the sliding direction of the card to form a combination: the combination of the center side of the center line is a normally open contact The combination of the other side of the above center line is a normally closed contact. 2. The electromagnetic relay according to claim 2, wherein the return spring has a protrusion formed by sheet metal processing at a tip end portion, and the card has a tip end card inserted into the return spring, and the above-mentioned return hole, The projection is locked to the locking hole. 3. For the electromagnetic relay of claim 2, the above-mentioned V-spring has a slit near the protrusion. 4. The electromagnetic relay according to item 2 of the patent application scope, wherein the protrusion has a semi-cylindrical shape, and the surface thereof is in linear contact with the locking hole or the surface 42 201042695 5. The electromagnetic relay of the patent application scope Wherein the reticle is divided into a plurality of shapes by sheet metal forming into a tip end portion, and the plurality of divided portions in the apex portion are arranged in a ore shape, and the card has a tip end inserted into the return spring The locking hole of the portion, at least one of the plurality of divided portions is locked to the locking hole. 6. The electromagnetic relay of claim 5, wherein the plurality of divided portions comprise linear divided portions and divided portions having a rich and poor shape formed by bending, and the portions are alternately arranged In the above bending process, the step is subjected to bending processing in a direction opposite to the direction in which the mold is released from the mold. 7. A control device comprising an electromagnetic relay as claimed in any one of claims 1 to 6. 43