Electromagnetic relay unit

Abstract

To provide an electromagnetic relay unit that can be mounted on a substrate stably even in the terminal arrangement in which the posture of the electromagnetic relay unit on the substrate is unstable.SOLUTION: An electromagnetic relay unit includes a base, a first contact terminal, a second contact terminal, and a case. The first contact terminal protrudes downward from the base. The first contact terminal includes a first bent part. The first bent part is disposed on a first side of a center line of a bottom surface of the base at the bottom surface, and is bent along the bottom surface of the base. The second contact terminal protrudes downward from the base. The second contact terminal includes a second bent part. The second bent part is disposed on the first side of the center line at the bottom surface of the base, and is bent along the bottom surface of the base. The case is attached to the base. The case or the base includes a stand part. The stand part protrudes downward. The stand part is disposed on a second side, which is opposite to the first side about the center line of the base.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an electromagnetic relay. [Background technology]

[0002] There are so-called surface mount type electromagnetic relays. For example, as disclosed in Patent Document 1, in a surface mount type electromagnetic relay, a terminal protrudes downward from a base and has a bent portion that is bent toward the side. The bent portion is soldered to a board, whereby the electromagnetic relay is mounted on the board. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-201306 A Summary of the Invention [Problem to be solved by the invention]

[0004] Reflow soldering is a method for mounting an electromagnetic relay on a board. In reflow soldering, solder is applied to the board in advance, and the electromagnetic relay is placed on top of it. The solder is then heated in a reflow furnace, soldering the electromagnetic relay to the board. Using this type of reflow soldering allows the electromagnetic relay to be mounted efficiently on the board.

[0005] However, in the above-mentioned surface-mounted electromagnetic relay, depending on the arrangement of the terminals, the balance when placed on the board may be poor, making it difficult to mount it on the board. For example, if the terminals are arranged asymmetrically on the bottom surface of the base, the electromagnetic relay may not be able to maintain its posture when placed on the board and may tilt. In that case, mounting by reflow soldering as described above is difficult. Alternatively, the electromagnetic relay may be arranged unstably, which may reduce the accuracy of mounting on the board. An object of the present invention is to provide an electromagnetic relay that can be stably mounted on a board even if the arrangement of the terminals makes the posture of the electromagnetic relay on the board unstable. [Means for solving the problem]

[0006] An electromagnetic relay according to one aspect of the present invention includes a base, a first contact terminal, a second contact terminal, and a case. The first contact terminal protrudes downward from the base. The first contact terminal includes a first bent portion. The first bent portion is disposed on a first side of a center line of a bottom surface of the base in a bottom view. The first bent portion is bent along the bottom surface of the base. The second contact terminal protrudes downward from the base. The second contact terminal includes a second bent portion. The second bent portion is disposed on the first side of the center line in a bottom view. The second bent portion is bent along the bottom surface of the base. The case is attached to the base and covers the base. The case or the base includes a stand portion. The stand portion protrudes downward from the case or the base. The stand portion is disposed on a second side opposite to the first side with respect to the center line of the base.

[0007] In the electromagnetic relay according to this embodiment, the stand prevents the electromagnetic relay from tilting when placed on a circuit board. Therefore, the position of the electromagnetic relay before soldering can be stably maintained on the circuit board. This allows the electromagnetic relay to be stably mounted on the circuit board.

[0008] The lower end of the stand may be disposed flush with the first bent portion and the second bent portion. In this case, the stand can more stably maintain the position of the electromagnetic relay on the board before soldering.

[0009] The electromagnetic relay may further include a first coil terminal and a second coil terminal. The first coil terminal may protrude downward from the base. The first coil terminal may include a third bent portion bent along the bottom surface of the base. The second coil terminal may protrude downward from the base. The second coil terminal may include a fourth bent portion bent along the bottom surface of the base. The third bent portion may be disposed on a first side of the center line on the bottom surface of the base. The fourth bent portion may be disposed on a second side of the center line on the bottom surface of the base. Alternatively, the third bent portion and the fourth bent portion may be disposed on a first side of the center line on the bottom surface of the base. In this way, even if the terminals are disposed in a way that makes the electromagnetic relay unstable, the stand portion can stably maintain the position of the electromagnetic relay on the board.

[0010] The lower end of the stand may be disposed flush with the third bent portion and the fourth bent portion. In this case, the stand can more stably maintain the position of the electromagnetic relay on the board before soldering. The stand may be provided on the case. The stand may be provided on the base.

[0011] An electromagnetic relay according to another aspect of the present invention includes a base, a first contact terminal, a second contact terminal, a first coil terminal, a second coil terminal, and a case. The first contact terminal protrudes downward from the base. The first contact terminal includes a first bent portion. The first bent portion is bent along a bottom surface of the base. The second contact terminal protrudes downward from the base. The second contact terminal includes a second bent portion. The second bent portion is bent along the bottom surface of the base. The first coil terminal protrudes downward from the base. The first coil terminal includes a third bent portion. The third bent portion is bent along the bottom surface of the base. The second coil terminal protrudes downward from the base. The second coil terminal includes a fourth bent portion. The fourth bent portion is bent along the bottom surface of the base. The case is attached to the base and covers the base.

[0012] The base and the case include a first region, a second region, a third region, and a fourth region in a bottom view. The second region is disposed symmetrically with the first region with respect to the first center line. The third region is disposed symmetrically with the first region with respect to a second center line perpendicular to the first center line. The fourth region is disposed symmetrically with the second region with respect to the second center line. The first bent portion, the second bent portion, the third bent portion, and the fourth bent portion are each disposed in any region except at least one of the first region, the second region, the third region, and the fourth region. The case or the base includes a stand portion protruding downward from the case or the base. The stand portion is disposed in a region of the first region, the second region, the third region, and the fourth region where the first bent portion, the second bent portion, the third bent portion, and the fourth bent portion are not disposed.

[0013] In the electromagnetic relay according to this embodiment, the stand prevents the electromagnetic relay from tilting when placed on a circuit board. Therefore, the position of the electromagnetic relay before soldering can be stably maintained on the circuit board. This allows the electromagnetic relay to be stably mounted on the circuit board.

[0014] The lower end of the stand may be disposed flush with the first bent portion, the second bent portion, the third bent portion, and the fourth bent portion. In this case, the stand can more stably maintain the position of the electromagnetic relay on the board before soldering.

[0015] The first bent portion and the second bent portion may be disposed in the first region. The third bent portion may be disposed in the third region. The fourth bent portion may be disposed in the fourth region. The stand portion may be disposed in the second region. In this way, even if the terminals are disposed in a way that makes the electromagnetic relay unstable, the position of the electromagnetic relay on the board can be kept stable by the stand portion. The stand portion may be provided on the case. The stand portion may be provided on the base. Effect of the Invention

[0016] According to the present invention, it is possible to provide an electromagnetic relay that can be stably mounted on a board even if the terminals are arranged in a way that makes the position of the electromagnetic relay on the board unstable. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view of an electromagnetic relay according to an embodiment. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. 2 is a side view of the relay body without the case. [Figure 7] FIG. 2 is a side view of the relay body without the case. [Figure 8] FIG. [Figure 9] FIG. 11 is a bottom view of the electromagnetic relay according to the first modified example. [Figure 10] FIG. 11 is a bottom view of an electromagnetic relay according to a second modified example. [Figure 11] FIG. 13 is a bottom view of an electromagnetic relay according to a third modified example. [Figure 12] FIG. 13 is a bottom view of an electromagnetic relay according to a fourth modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] An electromagnetic relay according to an embodiment will be described below with reference to the drawings. Figs. 1 and 2 are perspective views of an electromagnetic relay 1 according to an embodiment. Fig. 3 is a bottom view of the electromagnetic relay 1. Fig. 4 is a side view of the electromagnetic relay 1. Fig. 5 is a front view of the electromagnetic relay 1. The electromagnetic relay 1 is a surface mount type relay. As shown in Figs. 1 to 5, the electromagnetic relay 1 includes a case 4.

[0019] 6 and 7 are side views of the electromagnetic relay 1 without the case 4. As shown in Fig. 6 and 7, the electromagnetic relay 1 includes a base 5, a fixed contact 6, a movable contact 7, a first contact terminal 8, and a second contact terminal 9.

[0020] In the following description, the direction in which the fixed contact 6 and the movable contact 7 are arranged relative to the base 5 is defined as the upper direction, and the opposite direction is defined as the lower direction. The direction in which the movable contact 7 is arranged relative to the fixed contact 6 is defined as the front direction, and the opposite direction is defined as the rear direction. In addition, the left and right sides as viewed from the front are defined as the left and right sides, respectively. However, these directions are used for convenience of description, and do not limit the arrangement, etc., of the electromagnetic relay 1.

[0021] The fixed contact 6 and the movable contact 7 are made of a metal having electrical conductivity. The fixed contact 6 and the movable contact 7 are arranged above the base 5. The movable contact 7 is arranged facing the fixed contact 6. The fixed contact 6 is connected to a first contact terminal 8. The movable contact 7 is connected to a second contact terminal 9. The first contact terminal 8 and the second contact terminal 9 are made of a metal having electrical conductivity. The second contact terminal 9 is arranged facing the first contact terminal 8. The first contact terminal 8 and the second contact terminal 9 are supported by the base 5. The base 5 is made of, for example, resin. The first contact terminal 8 and the second contact terminal 9 extend upward from the base 5. The first contact terminal 8 and the second contact terminal 9 protrude downward from the base 5 to the outside of the electromagnetic relay 1.

[0022] The base 5 includes a first base hole 11 and a second base hole 12. The first contact terminal 8 is press-fitted into the first base hole 11. The first contact terminal 8 passes through the first base hole 11 and protrudes downward from the base 5. The second contact terminal 9 is press-fitted into the second base hole 12. The second contact terminal 9 passes through the second base hole 12 and protrudes downward from the base 5.

[0023] The first contact terminal 8 includes a first straight portion 15 and a first bent portion 16. The first straight portion 15 extends downward from the base 5 through the first base hole 11. The first bent portion 16 is bent relative to the first straight portion 15. The first bent portion 16 extends rearward from the first straight portion 15. The second contact terminal 9 includes a second straight portion 17 and a second bent portion 18. The second straight portion 17 extends downward from the base 5 through the second base hole 12. The second bent portion 18 is bent relative to the second straight portion 17. The second bent portion 18 extends forward from the second straight portion 17.

[0024] As shown in Fig. 6, the electromagnetic relay 1 includes a coil block 20, a card 21, an armature 22, and a return spring 23. The coil block 20 generates an electromagnetic force that moves the movable contact 7 between an open position and a closed position. As shown in Fig. 6, when the movable contact 7 is in the open position, the movable contact 7 is separated from the fixed contact 6. As shown in Fig. 7, when the movable contact 7 is in the closed position, the movable contact 7 is in contact with the fixed contact 6. The coil block 20 includes a coil 24, a spool 25, an iron core 26, a yoke 27, a first coil terminal 28, and a second coil terminal 29.

[0025] The coil 24 is wound around the spool 25. Although not shown in the figure, ends of the coil 24 are connected to a first coil terminal 28 and a second coil terminal 29, respectively. The spool 25 is supported by a base 5. The spool 25 includes a cylindrical portion 31, an upper flange 32, and a lower flange 33. The coil 24 is wound around the cylindrical portion 31. The upper flange 32 and the lower flange 33 protrude radially from the cylindrical portion 31. The upper flange 32 is disposed above the cylindrical portion 31. The lower flange 33 is disposed below the cylindrical portion 31.

[0026] The iron core 26 is disposed within the spool 25. The yoke 27 has an L-shaped bent shape. The yoke 27 includes a first yoke portion 34 and a second yoke portion 35. The yoke 27 is bent between the first yoke portion 34 and the second yoke portion 35. The first yoke portion 34 is disposed below the iron core 26. The first yoke portion 34 is connected to the iron core 26. The second yoke portion 35 extends upward from the first yoke portion 34.

[0027] The first coil terminal 28 and the second coil terminal 29 are supported by the spool 25 and the base 5. The first coil terminal 28 and the second coil terminal 29 extend upward from the spool 25. The first coil terminal 28 and the second coil terminal 29 protrude downward from the base 5 to the outside of the electromagnetic relay 1.

[0028] The spool 25 includes a first spool hole 36. The first spool hole 36 is provided in the lower flange 33. The base 5 includes a third base hole 13. The first coil terminal 28 is press-fitted into the first spool hole 36. Alternatively, the first coil terminal 28 may be press-fitted into the third base hole 13. The first coil terminal 28 passes through the first spool hole 36 and the third base hole 13 and protrudes downward from the base 5. Although not shown, the spool 25 includes a second spool hole similar to the first spool hole. The base 5 includes a fourth base hole similar to the third base hole 13. The second coil terminal 29 protrudes downward from the base 5 through the second spool hole and the fourth base hole.

[0029] The first coil terminal 28 includes a third straight portion 41 and a third bent portion 42. The third straight portion 41 extends downward from the base 5. The third bent portion 42 is bent relative to the third straight portion 41. The third bent portion 42 extends leftward from the third straight portion 41. The second coil terminal 29 includes a fourth straight portion 43 and a fourth bent portion 44. The fourth straight portion 43 extends downward from the base 5. The fourth bent portion 44 is bent relative to the fourth straight portion 43. The fourth bent portion 44 extends rightward from the fourth straight portion 43.

[0030] 6, the card 21 includes a rotating shaft 51, a pressing portion 52, and a receiving portion 53. The rotating shaft 51 is rotatably supported by the base 5. The pressing portion 52 is disposed opposite the second contact terminal 9. The receiving portion 53 is disposed opposite the armature 22.

[0031] The armature 22 includes a first armature portion 54 and a second armature portion 55. The armature 22 has a bent shape between the first armature portion 54 and the second armature portion 55. The first armature portion 54 is disposed above the iron core 26. The first armature portion 54 is disposed facing the iron core 26. The second armature portion 55 extends downward from the first armature portion 54. The second armature portion 55 is disposed facing the receiving portion 53 of the card 21.

[0032] The armature 22 is supported by the second yoke portion 35. The armature 22 is supported rotatably around the upper end of the second yoke portion 35. The return spring 23 is connected to the armature 22. The return spring 23 is a hinge spring. The return spring 23 biases the armature 22 in a direction in which the second armature portion 55 moves away from the receiving portion 53 of the card 21.

[0033] FIG. 8 is a perspective view of the case 4. As shown in FIG. 8, the case 4 has a box-like shape including an opening 60 that opens downward. The case 4 is separate from the base 5. The base 5 is disposed within the opening 60. The case 4 covers the base 5 from above. The case 4 is attached to the base 5 and covers the fixed contact 6, the movable contact 7, the coil block 20, the card 21, the armature 22, and the return spring 23. The case 4 includes a top surface 61, a first side surface 62, a second side surface 63, a third side surface 64, and a fourth side surface 65.

[0034] The top surface 61 is disposed above the base 5. The first side surface 62, the second side surface 63, the third side surface 64, and the fourth side surface 65 extend downward from the top surface 61. The first side surface 62 is disposed on the left side of the base 5. The second side surface 63 is disposed on the right side of the base 5. The third side surface 64 is disposed in front of the base 5. The fourth side surface 65 is disposed in the rear of the base 5. The lower ends of the first side surface 62, the second side surface 63, the third side surface 64, and the fourth side surface 65 are disposed flush with the bottom surface 59 of the base 5. The lower ends of the first side surface 62, the second side surface 63, the third side surface 64, and the fourth side surface 65 may be disposed at a different height from the bottom surface 59 of the base 5.

[0035] Next, the operation of the electromagnetic relay 1 will be described. In the following description, the direction in which the movable contact 7 approaches the fixed contact 6 is defined as the closing direction, and the direction in which the movable contact 7 moves away from the fixed contact 6 is defined as the opening direction. When no current flows through the coil 24, the movable contact 7 is away from the fixed contact 6, as shown in FIG. 6.

[0036] When a current flows through the coil 24, the first armature portion 54 is attracted to the iron core 26 by the electromagnetic force generated by the coil 24. This causes the armature 22 to rotate against the biasing force of the return spring 23. When the armature 22 rotates, the second armature portion 55 presses the receiving portion 53 of the card 21 in the closing direction. This causes the card 21 to rotate in the closing direction, and the pressing portion 52 of the card 21 presses the second contact terminal 9 in the closing direction. The second contact terminal 9 is elastically deformed by being pressed by the pressing portion 52, and as a result, the movable contact 7 moves in the closing direction and comes into contact with the fixed contact 6, as shown in FIG. 7.

[0037] When the current to the coil 24 is cut off, the electromagnetic force by which the iron core 26 attracts the first armature portion 54 disappears. Therefore, the armature 22 rotates in the opposite direction to the above due to the biasing force of the return spring 23. This causes the card 21 to rotate in the opening direction, and the second contact terminal 9 moves in the opening direction due to the elastic force of the second contact terminal 9. This causes the movable contact 7 to move in the opening direction and separate from the fixed contact 6.

[0038] Next, the arrangement of the first contact terminal 8, the second contact terminal 9, the first coil terminal 28, and the second coil terminal 29 will be described. As shown in Fig. 4 and Fig. 5, the first straight portion 15 of the second contact terminal 9 extends downward from the base 5. The first bent portion 16 of the first contact terminal 8 is bent along the bottom surface 59 of the base 5. The second straight portion 17 of the second contact terminal 9 extends downward from the base 5. The second bent portion 18 of the second contact terminal 9 is bent along the bottom surface 59 of the base 5.

[0039] The third straight portion 41 of the first coil terminal 28 extends downward from the base 5. The third bent portion 42 of the first coil terminal 28 is bent along the bottom surface 59 of the base 5. The fourth straight portion 43 of the second coil terminal 29 extends downward from the base 5. The fourth bent portion 44 of the second coil terminal 29 is bent along the bottom surface 59 of the base 5. The first bent portion 16, the second bent portion 18, the third bent portion 42, and the fourth bent portion 44 are disposed flush with one another.

[0040] As shown in FIG. 3, the first bent portion 16 of the first contact terminal 8 and the second bent portion 18 of the second contact terminal 9 are arranged asymmetrically on the bottom surface 59 of the base 5. In detail, the first bent portion 16 and the second bent portion 18 are arranged asymmetrically with respect to the center line of the bottom surface 59 of the base 5 in a bottom view. The center line of the bottom surface 59 of the base 5 includes a first center line C1 and a second center line C2. The first center line C1 extends in the longitudinal direction of the bottom surface 59 of the base 5. In this embodiment, the longitudinal direction of the bottom surface 59 of the base 5 is the front-rear direction. The second center line C2 is perpendicular to the first center line C1. That is, the second center line C2 extends in the left-right direction.

[0041] The first bent portion 16 and the second bent portion 18 are disposed on the left side of the first center line C1 on the bottom surface 59 of the base 5 in a bottom view. The first bent portion 16 and the second bent portion 18 are disposed on the rear side of the second center line C2 on the bottom surface 59 of the base 5 in a bottom view. The third bent portion 42 is disposed on the left side of the first center line C1 on the bottom surface 59 of the base 5 in a bottom view. The fourth bent portion 44 is disposed on the right side of the first center line C1 on the bottom surface 59 of the base 5 in a bottom view. The third bent portion 42 and the fourth bent portion 44 are disposed in front of the second center line C2 on the bottom surface 59 of the base 5 in a bottom view.

[0042] The bottom surface 59 of the case 4 and the base 5 includes a first region A1, a second region A2, a third region A3, and a fourth region A4. The second region A2 is disposed symmetrically with the first region A1 with respect to the first center line C1. The third region A3 is disposed symmetrically with the first region A1 with respect to the second center line C2. The fourth region A4 is disposed symmetrically with the second region A2 with respect to the second center line C2. The fourth region A4 is disposed symmetrically with the third region A3 with respect to the first center line C1.

[0043] The first bent portion 16 of the first contact terminal 8 and the second bent portion 18 of the second contact terminal 9 are arranged in the first area A1. The third bent portion 42 of the first coil terminal 28 is arranged in the third area A3. The fourth bent portion 44 of the second coil terminal 29 is arranged in the fourth area A4.

[0044] In the above-described asymmetric arrangement of the first contact terminal 8, the second contact terminal 9, the first coil terminal 28, and the second coil terminal 29, the position of the electromagnetic relay 1 when placed on the board is likely to become unstable. Therefore, in the electromagnetic relay 1 according to this embodiment, the case 4 includes a stand portion 66 in order to stabilize the position of the electromagnetic relay 1 when placed on the board.

[0045] The stand portion 66 protrudes downward from the lower end of the case 4. The stand portion 66 protrudes downward from the lower end of the second side surface 63. The lower end of the stand portion 66 has a flat shape. The lower end of the stand portion 66 is disposed flush with the first bent portion 16, the second bent portion 18, the third bent portion 42, and the fourth bent portion 44.

[0046] The stand portion 66 is disposed on the opposite side of the first center line C1 from the first bent portion 16 and the second bent portion 18 in a bottom view. That is, the stand portion 66 is disposed on the right side of the first center line C1 in a bottom view. The stand portion 66 is disposed in an area of ​​the first to fourth areas A1-A4 where the first to fourth bent portions 16, 18, 42, 44 are not disposed. That is, the stand portion 66 is disposed in the second area A2.

[0047] In the electromagnetic relay 1 according to the present embodiment described above, the stand portion 66 prevents the electromagnetic relay 1 from tilting when placed on the board. Therefore, the posture of the electromagnetic relay 1 before soldering can be stably maintained on the board. This allows the electromagnetic relay 1 to be stably mounted on the board.

[0048] Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the invention.

[0049] The structure of the base 5 is not limited to that of the above embodiment and may be modified. The structures of the fixed contact 6, the movable contact 7, the first contact terminal 8, and the second contact terminal 9 are not limited to that of the above embodiment and may be modified. For example, the fixed contact 6 may be separate from the first contact terminal 8, or may be separate from the first contact terminal 8. The movable contact 7 may be separate from the second contact terminal 9, or may be separate from the second contact terminal 9. The fixed contact 6 may be connected to the second contact terminal 9. The movable contact 7 may be connected to the first contact terminal 8.

[0050] The structures of the coil block 20, the card 21, the armature 22, and the return spring 23 are not limited to those in the above embodiment, and may be modified. For example, the card 21 may be movable linearly. The structure of the case 4 is not limited to those in the above embodiment, and may be modified. For example, the number of stand parts is not limited to one, and multiple stand parts may be provided on the case 4.

[0051] The bending directions of the first to fourth bent portions 16, 18, 42, 44 are not limited to those in the above embodiment, and may be changed. For example, FIG. 9 is a bottom view of the electromagnetic relay 1 according to the first modified example. As shown in FIG. 9, the first to fourth bent portions 16, 18, 42, 44 may be bent toward the inside of the bottom surface 63 of the base 3 so as not to protrude outward from the bottom surface 63 of the base 3. The first bent portion 16 and the second bent portion 18 may be bent toward the same direction. The third bent portion 42 and the fourth bent portion 44 may be bent toward the same direction. The first bent portion 16 and the second bent portion 18 may be bent in the left-right direction, not limited to the front-rear direction. The third bent portion 42 and the fourth bent portion 44 may be bent in the front-rear direction, not limited to the left-right direction. The first bent portion 16 and the second bent portion 18 may be bent in a direction facing each other. The third bent portion 42 and the fourth bent portion 44 may be bent in directions facing each other.

[0052] The arrangement of the first to fourth bent portions 16, 18, 42, 44 and the stand portion 66 is not limited to that of the above embodiment and may be changed. For example, FIG. 10 is a bottom view of the electromagnetic relay 1 according to a second modified example. As shown in FIG. 10, the first to fourth bent portions 16, 18, 42, 44 may all be arranged on the same side with respect to the first center line C1. In this case, the stand portion 66 is arranged on the opposite side of the first center line C1 to the first to fourth bent portions 16, 18, 42, 44. For example, as shown in FIG. 10, the stand portion 66 may be arranged in the fourth area A4. Alternatively, similar to the above embodiment, the stand portion 66 may be arranged in the second area A2.

[0053] The number of stand parts is not limited to one, and multiple stand parts may be provided. For example, Fig. 11 is a bottom view of an electromagnetic relay 1 according to a third modified example. As shown in Fig. 11, the case 4 may include multiple stand parts 66A, 66B. The stand part 66A may be disposed in the second area A2. The stand part 66B may be disposed in the fourth area A4.

[0054] Alternatively, the first bent portion 16 and the second bent portion 18 may be disposed in the second region A2, and the stand portion 66 may be disposed in the first region A1. The third bent portion 42 and the fourth bent portion 44 may both be disposed in the third region A3, and the stand portion 66 may be disposed in the fourth region A4. Alternatively, conversely, the third bent portion 42 and the fourth bent portion 44 may both be disposed in the fourth region A4, and the stand portion 66 may be disposed in the third region A3.

[0055] Fig. 12 is a bottom view of the electromagnetic relay 1 according to the fourth modified example. As shown in Fig. 12, the stand portion 66 may be provided on the base 5. The stand portion 66 may protrude downward from the bottom surface 59 of the base 5. [Industrial Applicability]

[0056] According to the present invention, it is possible to provide an electromagnetic relay that can be stably mounted on a board even if the terminals are arranged in a way that makes the position of the electromagnetic relay on the board unstable. [Explanation of symbols]

[0057] 4: case, 5: base, 6: fixed contact, 7: movable contact, 8: first contact terminal, 9: second contact terminal, 16: first bent portion, 18: second bent portion, 28: first coil terminal, 29: second coil terminal, 42: third bent portion, 44: fourth bent portion, 66: stand portion, A1: first region, A2: second region, A3: third region, A4: fourth region, C1: first center line, C2: second center line

Claims

1. With the base, a first contact terminal including a first bent portion that protrudes downward from the base, is disposed on a first side of a center line of a bottom surface of the base in a bottom view, and is bent along the bottom surface of the base; a second contact terminal including a second bent portion that protrudes downward from the base, is disposed on the first side of the center line in a bottom view, and is bent along a bottom surface of the base; a case attached to the base and covering the base; Equipped with The case or the base includes a stand portion protruding downward, The stand portion is disposed on a second side opposite to the first side with respect to a center line of the base. Electromagnetic relay.

2. A lower end of the stand portion is disposed flush with the first bent portion and the second bent portion.

2. An electromagnetic relay as claimed in claim 1.

3. a first coil terminal including a third bent portion protruding downward from the base and bent along a bottom surface of the base; a second coil terminal including a fourth bent portion protruding downward from the base and bent along a bottom surface of the base; Further equipped with the third bent portion is disposed on the first side of the center line in a bottom view, The fourth bent portion is disposed on the second side of the center line in a bottom view.

2. An electromagnetic relay as claimed in claim 1.

4. a first coil terminal including a third bent portion protruding downward from the base and bent along a bottom surface of the base; a second coil terminal including a fourth bent portion protruding downward from the base and bent along a bottom surface of the base; Further equipped with The third bent portion and the fourth bent portion are disposed on the first side of the center line in a bottom view.

2. An electromagnetic relay as claimed in claim 1.

5. A lower end of the stand portion is disposed flush with the third bent portion and the fourth bent portion.

5. An electromagnetic relay according to claim 3 or 4.

6. The stand is provided on the case.

2. An electromagnetic relay as claimed in claim 1.

7. The stand portion is provided on the base.

2. An electromagnetic relay as claimed in claim 1.

8. With the base, a first contact terminal including a first bent portion protruding downward from the base and bent along a bottom surface of the base; a second contact terminal including a second bent portion protruding downward from the base and bent along a bottom surface of the base; a first coil terminal including a third bent portion protruding downward from the base and bent along a bottom surface of the base; a second coil terminal including a fourth bent portion protruding downward from the base and bent along a bottom surface of the base; a case attached to the base and covering the base; Equipped with The base and the case, when viewed from the bottom, A first region; and A second region disposed symmetrically with respect to the first center line of the base; a third region disposed symmetrically with respect to the first region with respect to a second center line perpendicular to the first center line; a fourth region disposed symmetrically with respect to the second center line with respect to the second region; Including, the first bent portion, the second bent portion, the third bent portion, and the fourth bent portion are each disposed in any one of the first region, the second region, the third region, and the fourth region excluding at least one of the first region, the second region, the third region, and the fourth region; The case or the base includes a stand portion protruding downward, the stand portion is disposed in a region among the first region, the second region, the third region, and the fourth region, in which the first bent portion, the second bent portion, the third bent portion, and the fourth bent portion are not disposed, Electromagnetic relay.

9. a lower end of the stand portion is disposed flush with the first bent portion, the second bent portion, the third bent portion, and the fourth bent portion; 9. An electromagnetic relay according to claim 8.

10. the first bent portion and the second bent portion are disposed in the first region, the third bent portion is disposed in the third region, the fourth bent portion is disposed in the fourth region, The stand portion is disposed in the second region.

9. An electromagnetic relay according to claim 8.

11. The stand is provided on the case.

9. An electromagnetic relay according to claim 8.

12. The stand portion is provided on the base.

9. An electromagnetic relay according to claim 8.

Images