Electromagnetic device

Abstract

An electromagnet device includes a coil, a pulley, a first coil terminal, a second coil terminal, and a third coil terminal. The pulley includes a body portion around which the coil is wound, and a flange portion extending from the body portion. The first coil terminal includes a first binding portion extending from the flange portion in an axial direction of the body portion. The second coil terminal includes a second binding portion extending from the flange portion in the axial direction. The third coil terminal is located between the first coil terminal and the second coil terminal. The third coil terminal includes a third binding portion. The third binding portion includes a base end portion and a distal portion extending from the base end portion in a direction approaching the second binding portion.The base end portion is located eccentrically relative to an axis of the body portion in a direction leading from the second coil terminal to the first coil terminal.

Description

AREA

[0001] The claimed invention relates to an electromagnet device. STATE OF THE ART

[0002] Patent Document 1 discloses a self-holding electromagnetic relay with two windings. The electromagnetic relay includes an electromagnet device. The electromagnet device includes three coil terminals arranged in the same direction. Each of the three coil terminals includes a binding portion to which a lead wire of the coil is connected. Among the three coil terminals, the binding portion of the central coil terminal has a bent portion extending in the direction in which the three coil terminals are arranged. PRIOR ART DOCUMENT PATENT DOCUMENT

[0003] [Patent Document 1] Japanese Patent Publication No. 2015-041608 SUMMARYTechnical task

[0004] In the electromagnet device disclosed in Patent Document 1, the bonding portion of the central coil terminal is bent in the direction in which the three coil terminals are arranged. As a result, the insulation distances between the central coil terminal and the coil terminals located near the bonding portion of the central terminal are reduced. If a sufficient insulation distance between the central coil terminal and the terminals near the bonding portion of the central coil terminal is to be ensured, the size of the electromagnet device can be increased.

[0005] The object of the claimed invention is to provide an electromagnet device in which sufficient insulation distances between coil terminals are ensured while the overall size of the electromagnet device is not increased. Solution to the task

[0006] An electromagnet device according to one aspect of the claimed invention includes a coil, a reel, a first coil terminal, a second coil terminal, and a third coil terminal. The reel includes a body portion on which the coil is wound and a flange portion extending from the body portion. The first coil terminal includes a first binding portion extending from the flange portion in an axial direction of the body portion. The second coil terminal includes a second binding portion extending from the flange portion in the axial direction. The third coil terminal is located between the first coil terminal and the second coil terminal. The third coil terminal includes a third binding portion.The third binding portion includes a base end portion and a distal portion extending from the base end portion in a direction approaching the second binding portion. The base end portion of the third binding portion is eccentrically located relative to an axis of the body portion in a direction leading from the second coil terminal to the first coil terminal.

[0007] In this electromagnet device, the base end portion of the third binding portion is eccentrically located relative to the axis of the body portion in the direction from the second coil terminal to the first coil terminal, which facilitates ensuring an insulation distance between the third binding portion and the second binding portion. As a result, it is possible to maintain a sufficient insulation distance between the coil terminals while preventing the overall size of the electromagnet device from increasing. Additionally, the first, second, and third coil terminals can be constructed using a common terminal, promoting component commonality.

[0008] The third binding portion may have a length dimension substantially equal to a length dimension of the first binding portion and a length dimension of the second binding portion. In this case, the first binding portion 71a, the second binding portion 72a, and the third binding portion 73a may be brazed simultaneously using a jig.

[0009] The flange portion of the reel may include a terminal support portion configured to support the third coil terminal, and a protrusion facing the terminal support portion in the axial direction, the protrusion configured to hook a lead wire of the coil thereto. The third binding portion of the third coil terminal may be located between the terminal support portion and the protrusion. In this case, during assembly of the electromagnet device, the lead wire of the coil is engaged with the protrusion to prevent the lead wire from breaking due to the stress generated in the lead wire when the third binding portion is bent back after soldering the third binding portion. During assembly of the electromagnet device, the lead wire can be temporarily held by the protrusion. Accordingly, the lead wire is unlikely to be subjected to stress when the third binding section is soldered and subsequently bent back, reducing the risk of lead wire separation.

[0010] The distance from the base end portion of the third binding portion to the first binding portion may be substantially equal to the distance from the tip of the distal portion of the third binding portion to the second binding portion. In this case, the insulation distance between the coil terminals can be efficiently secured in a limited space.

[0011] The electromagnet device may further include an insulating wall located at least between the first and third binding portions or between the second and third binding portions. In this case, the insulating wall improves the insulation performance between the coil terminals.

[0012] The second coil terminal may have the same shape as the first coil terminal. The third coil terminal may be a terminal formed by bending a terminal with the same shape as the first coil terminal. In this case, all three coil terminals can be built with a common terminal, promoting component commonality.

[0013] According to the claimed invention, an electromagnet device can be provided in which sufficient insulation distances between coil terminals are ensured while preventing the size of the electromagnet device from being increased. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of an electromagnetic relay. Fig. 2 is a left side view of an electromagnet device. Fig. 3 is a diagram showing the operating state of an electromagnet device. Fig. 4 is a diagram showing an assembly process of an electromagnet device. Fig. 5 is a diagram showing an assembly process of an electromagnet device. Fig. 6 is a diagram showing an assembly process of an electromagnet device. Fig. 7 is a diagram showing an assembly process of an electromagnet device. Fig. 8 is a left side view of an electromagnet device according to a modification. Fig. 9 is a diagram showing a modification of a projection. Fig. 10 is a diagram showing a modification of a projection. Fig. 11 is a diagram showing a modification of a projection. DETAILED DESCRIPTION

[0014] In the following, an embodiment of an electromagnetic relay incorporating an electromagnet device according to one aspect of the claimed invention will be described with reference to the drawings. For convenience of description with reference to the drawings, the upper side is Fig. 1 is referred to as "top," the bottom as "bottom," the left side as "left," the right side as "right," the near side of the blade as "front," and the far side as "back." These directions are defined to make the description clearer and do not limit the arrangement directions of the electromagnetic relay.

[0015] Electromagnetic relay 1 is a joint-type electromagnetic relay. Electromagnetic relay 1 is a self-holding two-winding electromagnetic relay. As shown in Fig. 1, the electromagnetic relay 1 includes a base 2, a contact device 3, and an electromagnet device 4. The base 2 is made of an insulating material, such as resin. A box-shaped cover member (not shown) is located above the base 2. The contact device 3 and the electromagnet device 4 are located in an interior space formed by the base 2 and the cover member.

[0016] The contact device 3 includes a fixed terminal 6, a movable contact piece 7, and an actuating mechanism 8. The fixed terminal 6 and the movable contact piece 7 are plate terminals and are made of conductive material. The fixed terminal 6 and the movable contact piece 7 are supported by the base 2. The fixed terminal 6 and the movable contact piece 7 extend upward from the base 2.

[0017] The fixed terminal 6 includes a fixed contact 6a and an external connection portion 6b. The fixed contact 6a is located above the base 2. The fixed contact 6a lies on the right surface of the fixed terminal 6.

[0018] The external connection portion 6b protrudes downward from the base 2 and is exposed to the outside. The external connection portion 6b is to be electrically connected to an external device (not shown).

[0019] The movable contact piece 7 is formed of an elastically deformable leaf spring and is arranged opposite the fixed terminal 6 in the left-right direction. In the present embodiment, the movable contact piece 7 is located to the left of the fixed terminal 6.

[0020] The movable contact piece 7 includes a movable contact 7a and an external connection portion 7b. The movable contact 7a is arranged opposite the fixed contact 6a and is designed to come into contact with the fixed contact 6a. The external connection portion 7b is electrically connected to an external device (not shown).

[0021] The actuating mechanism 8 moves the movable contact piece 7 in a direction in which the movable contact 7a approaches the fixed contact 6a and in a direction in which the movable contact 7a separates from the fixed contact 6a. In the present embodiment, the movement directions of the movable contact piece 7 correspond to the left-right direction.

[0022] The actuating mechanism 8 includes a card 10. The card 10 is rotatably supported by the base 2. The card 10 is rotatable in the left-right direction, with the lower end of the card 10 serving as the pivot point. The card 10 is located between the movable contact piece 7 and the electromagnet device 4. The card 10 is connected to both the movable contact piece 7 and the electromagnet device 4.

[0023] The electromagnet device 4 uses electromagnetic force to move the movable contact piece 7 via the actuating mechanism 8. The electromagnet device 4 rotates the card 10 through electromagnetic force, thereby moving the movable contact piece 7 in the left-right direction.

[0024] According to the presentation in the Fig. 1 to 3, the electromagnet device 4 includes a coil 41, a roller 42, an iron core 43, a yoke 44, an auxiliary yoke 45, a permanent magnet 46, a movable iron piece 47, and a hinge spring 48.

[0025] The spool 41 is wound around the outer circumference of the roller 42. The roller 42 extends in the up-down direction. The axial direction of the roller 42 corresponds to the up-down direction. As shown in Fig. 4, the roller 42 includes a first flange 51, a second flange 52 (an example of the flange portion), a body portion 53, and a housing portion 54.

[0026] The first flange 51 and the second flange 52 protrude from the body portion 53. The first flange 51 is connected to an upper end of the body portion 53. The second flange 52 is connected to a lower end of the body portion 53. The first flange 51 and the second flange 52 extend in a direction intersecting the up-down direction. The first flange 51 and the second flange 52 each have an outer diameter larger than the outer diameter of the body portion 53.

[0027] The second flange 52 includes an upper surface portion 52a, a sidewall 52b, a terminal support portion 52c, and a protrusion 52d. The upper surface portion 52a is located below the coil 41. The sidewall 52b extends downward from a left end of the upper surface portion 52a. The sidewall 52b is positioned between the upper surface portion 52a and the terminal support portion 52c. The terminal support portion 52c protrudes to the left from a lower end of the sidewall 52b. The terminal support portion 52c extends in a front-backward direction.

[0028] The projection 52d is located above the terminal support portion 52c. The projection 52d is arranged opposite the terminal support portion 52c in the up-down direction. The projection 52d is designed to hook the lead wire of the coil 41 thereon. The projection 52d protrudes to the left from the side wall 52b. The projection 52d is adjacent to the upper surface portion 52a. When viewed from the left-right direction, the projection 52d is positioned to overlap the axis A of the body portion 53.

[0029] The projection 52d includes a first surface 56 and an inclined surface 57 connected to the first surface 56. The first surface 56 is a front surface of the projection 52d. The first surface 56 is located forward of the axis A of the body portion 53. The inclined surface 57 extends rearwardly and downwardly from a lower end of the first surface 56.

[0030] The body portion 53 has a cylindrical shape and has the coil 41 wound around its outer periphery. The body portion 53 extends in the up-down direction. The axial direction of the body portion 53 corresponds to the up-down direction.

[0031] The housing portion 54 is located within the body portion 53. The housing portion 54 is a circular hole when viewed from the up-down direction. The housing portion 54 is formed to penetrate a central portion of the body portion 53 in the up-down direction.

[0032] The iron core 43 is arranged within the roller 42. The iron core 43 is housed in the housing portion 54. The iron core 43 is connected to a yoke 44. The axis of the iron core 43 extends in the up-down direction.

[0033] According to the presentation in Fig. 3, the yoke 44 is connected to the iron core 43, the auxiliary yoke 45, and the permanent magnet 46. The yoke 44 has a curved L-shaped design. The yoke 44 rotatably supports the movable iron piece 47. It should be noted that the roller 42 in the illustration in Fig. 3 is omitted.

[0034] The yoke 44 includes a base portion 61 and an extension portion 62. The base portion 61 is located below the second flange 52. The base portion 61 is fixed to a lower end of the iron core 43. The extension portion 62 bends from a right end of the base portion 61 and extends upward. The extension portion 62 is positioned on the right side of the coil 41.

[0035] The auxiliary yoke 45 is located below the base portion 61 of the yoke 44. The auxiliary yoke 45 is located between the base portion 61 of the yoke 44 and a base 2 in the up-down direction.

[0036] The permanent magnet 46 is located between the base portion 61 of the yoke 44 and the auxiliary yoke 45. The upper surface of the permanent magnet 46 is in contact with the yoke 44. The lower surface of the permanent magnet 46 is in contact with the auxiliary yoke 45.

[0037] The movable iron piece 47 is rotatably supported by the extension section 62 of the yoke 44 via the hinge spring 48. The movable iron piece 47 is between a Fig. 1 shown, first position and one in Fig. 3. In the first position, the movable iron piece 47 is separated from the iron core 43. In the second position, the movable iron piece 47 is in contact with the iron core 43. The second position corresponds to the operating position of the movable iron piece 47.

[0038] The hinge spring 48 is fixed to the extension portion 62 of the yoke 44. The hinge spring 48 is mounted on the extension portion 62 of the yoke 44 to hold the movable iron piece 47.

[0039] The operation of the electromagnetic relay 1 will be described below. The operation of the electromagnetic relay 1 is exactly the same as that of a conventional electromagnetic relay, so it will be described briefly. While no voltage is applied to the coil 41, the movable iron piece 47 is positioned in the first position due to the spring force of a movable contact piece 7, and the movable contact 7a is separated from the fixed contact 6a. In this state, a magnetic circuit M1 is formed to pass through the auxiliary yoke 45 and the base portion 61 of the yoke 44, and a magnetic circuit M2 is formed to pass through the iron core 43, the movable iron piece 47, the yoke 44, and the auxiliary yoke 45 due to the magnetic flux from the permanent magnet 46.

[0040] When a voltage is applied to the coil 41 such that a magnetic flux is generated in the same direction as the magnetic flux flowing through the magnetic circuit M2, a magnetic circuit is formed by the iron core 43, the movable iron piece 47, and the yoke 44 by the magnetic flux generated due to the voltage applied to the coil 41. As a result, the attractive force of the iron core 43 on the movable iron piece 47 increases, causing the movable iron piece 47 to rotate and move from the first position to the second position. When the movable iron piece 47 moves from the first position to the second position, the card 10 is pressed by the movable iron piece 47, and the movable contact 7a comes into contact with the fixed contact 6a.

[0041] Even after the voltage applied to the coil 41 is stopped, the magnetic force of the magnetic circuit M2 is greater than the spring force of the movable contact piece 7. As a result, the movable iron piece 47 is held at the second position.

[0042] When a reverse voltage is applied to the coil 41 in the direction opposite to the applied voltage to cancel the magnetic force of the magnetic circuit M2, the movable iron piece 47 moves from the second position to the first position and the movable contact 7a separates from the fixed contact 6a.

[0043] According to the presentation in Fig. 2, the electromagnet device 4 includes a first coil terminal 71, a second coil terminal 72, and a third coil terminal 73. The first to third coil terminals 71 to 73 are arranged one behind the other in one direction (here, the front-back direction). These coil terminals 71 to 73 are supported by the terminal support portion 52c. The terminal support portion 52c has holes into which the first to third coil terminals 71 to 73 are respectively inserted.

[0044] The first coil terminal 71 is located near the rear end of the terminal support portion 52c. The first coil terminal 71 is positioned behind the axis A of the body portion 53. The first coil terminal 71 is also located behind the coil 41. The first coil terminal 71 extends in the up-down direction.

[0045] The first coil terminal 71 includes a first binding portion 71a and a first external connection portion 71b. The first binding portion 71a is connected to a lead wire of the coil 41. The first binding portion 71a extends in the up-down direction. The first binding portion 71a protrudes upward from the terminal support portion 52c. The first external connection portion 71b protrudes downward from the terminal support portion 52c and is exposed to the outside.

[0046] The second coil terminal 72 has the same shape as the first coil terminal 71. That is, the second coil terminal 72 is formed using a terminal common to the first coil terminal 71. The second coil terminal 72 is located near the front end of the terminal support portion 52c. The second coil terminal 72 is located in front of the axis A of the body portion 53. The second coil terminal 72 is located in front of the coil 41. The second coil terminal 72 also extends in the up-down direction.

[0047] The second coil terminal 72 includes a second binding portion 72a and a second external connection portion 72b. The second binding portion 72a is connected to a lead wire of the coil 41. The second binding portion 72a extends in the up-down direction. The second binding portion 72a protrudes upward from the terminal support portion 52c. The second external connection portion 72b protrudes downward from the terminal support portion 52c and is exposed to the outside.

[0048] The third coil terminal 73 is located between the first coil terminal 71 and the second coil terminal 72. As shown in Fig. 2, the third coil terminal 73 is located eccentrically relative to the axis A of the body portion 53 in a direction leading from the second coil terminal 72 to the first coil terminal 71 (here, rearward). When viewed from the left-right direction, the third coil terminal 73 lies between the first coil terminal 71 and the axis A of the body portion 53.

[0049] The third coil terminal 73 includes a third binding portion 73a and a third external connection portion 73b. The third binding portion 73a is connected to a lead wire of the coil 41. The third binding portion 73a protrudes upward from the terminal support portion 52c. The third binding portion 73a has a bent shape, and the bent portion extends in a direction approaching the second binding portion 72a (here, forward). The third binding portion 73a is positioned between the terminal support portion 52c and the protrusion 52d. In the present embodiment, the third coil terminal 73 is formed by bending a terminal having the same shape as the first coil terminal 71. That is, the third coil terminal 73 is formed using a terminal common to the first coil terminal 71.

[0050] The third binding portion 73a includes a base end portion 76 and a distal portion 77. The base end portion 76 protrudes upward from the terminal support portion 52c. The base end portion 76 is located eccentrically relative to the axis A of the body portion 53 in the direction from the second coil terminal 72 to the first coil terminal 71. The base end portion 76 is closer to the first binding portion 71a than to the second binding portion 72a. The base end portion 76 is located behind the projection 52d. The base end portion 76 is located behind the axis A of the body portion 53.

[0051] The distal portion 77 extends from the base end portion 76 in a direction approaching the second binding portion 72a. The distal portion 77 is closer to the second binding portion 72a than to the first binding portion 71a. The distal portion 77 extends forward beyond the protrusion 52d. That is, the tip of the distal portion 77 is located in front of the protrusion 52d. The distal portion 77 is spaced from the terminal support portion 52c in the up-down direction. The distal portion 77 is closer to the protrusion 52d than to the base end portion 76. The distal portion 77 inclines in a direction approaching the protrusion 52d forward. The third external connecting portion 73b protrudes downward from the terminal support portion 52c and is exposed to the outside.The third external connecting portion 73b is located eccentrically relative to the axis A of the body portion 53 in the direction from the second coil terminal 72 to the first coil terminal 71.

[0052] The third binding portion 73a has substantially the same length as those of the first binding portion 71a and the second binding portion 72a. The length of the first binding portion 71a refers to its dimension in the extension direction, which corresponds to the dimension in the up-down direction of the first binding portion 71a in the present embodiment. The length dimension of the second binding portion 72a refers to its dimension in the extension direction, and in the present embodiment, corresponds to the dimension in the up-down direction of the second binding portion 72a. The length dimension of the first binding portion 71a is the same as that of the second binding portion 72a. The length dimension of the third binding portion 73a refers to the dimension from the base end portion 76 to the tip of the distal portion 77.

[0053] According to the presentation in Fig. 2, in the present embodiment, the distance D1 from the base end portion 76 of the third binding portion 73a to the first binding portion 71a is substantially equal to the distance D2 from the tip of the distal portion 77 of the third binding portion 73a to the second binding portion 72a. Note that the distances D1 and D2 do not need to be substantially equal. For example, the distance D1 may be longer than the distance D2.

[0054] An example of a method for assembling the electromagnet device 4 will be described below. As shown in Fig. 4, three coil terminals 70 having the same shape as the reel 42 are prepared, and the three coil terminals 70 are fixed to the terminal support portion 52c, for example, by press fitting. The leftmost coil terminal 70 corresponds to the first coil terminal 71, the rightmost coil terminal 72, and the center coil terminal 73. At this stage, the binding portion 73a of the third coil terminal 73 extends in the same direction as the first and second binding portions 71a and 72a.

[0055] Next, as shown in Fig. 5, the binding portions (first to third binding portions 71a, 72a, 73a) of the three coil terminals 70 (first to third coil terminals 71 to 73) are bent in the same direction. In the present embodiment, the binding portions are each bent by approximately 90° in the direction opposite to the side wall 52b. Then, one lead wire (indicated by a chain line) of the first winding of the coil 41 is wound around the first binding portion 71a, and the winding is wound clockwise by a predetermined amount around the body portion 53. Subsequently, the other lead wire of the first winding is pulled out to hook onto the front surface of the projection 52d and connected to the third binding portion 73a.

[0056] Next, one lead wire of the second winding of the coil 41 (indicated by a two-dot chain line) is connected to the third binding portion 73a. Then, the other lead wire of the second winding is pulled out to hook onto the front surface of the protrusion 52d, and the winding is wound clockwise around the body portion 53 by a predetermined amount. Finally, the other lead wire of the second winding is connected to the second binding portion 72a.

[0057] Next, as shown in Fig. 6, the first binding section 71a, the second binding section 72a and the third binding section 73a are soldered.

[0058] Then, as shown in Fig. 7, the first and second binding sections 71a and 72a are inserted into the Fig. 4. The third binding portion 73a is rotated horizontally by 90° and placed between the projection 52d and the terminal support portion 52c. The lead wire connected to the third binding portion 73a is arranged to hook onto the front surface of the projection 52d. Therefore, when the third binding portion 73a is rotated horizontally by 90° and placed between the projection 52d and the terminal support portion 52c, the lead wire is unlikely to be subjected to tension, reducing the risk of lead wire disconnection. It should be noted that in the Fig. 6 and Fig. 7 The wires are omitted for reasons of clarity.

[0059] In the above-described electromagnet device 4 of the electromagnetic relay 1, the base end portion 76 of the third binding portion 73a of the third coil terminal 73 is eccentrically located in the direction from the second coil terminal 72 to the first coil terminal 71 relative to the axis A of the body portion 53. This configuration facilitates securing an insulation clearance between the third binding portion 73a of the third coil terminal 73 and the second binding portion 72a of the second coil terminal 72. With this configuration, it is possible to secure insulation clearances between the first and third coil terminals 71 and 73 and between the second and third coil terminals 72 and 73 while not increasing the size of the electromagnet device 4.In addition, since the first, second, and third coil terminals 71 to 73 can be formed using a common terminal, component commonality can be achieved.

[0060] An embodiment of the electromagnetic relay according to one aspect of the claimed invention has been described above. However, the claimed invention is not limited to the above embodiment, and various modifications may be made without departing from the scope of the claimed invention.

[0061] In the above embodiment, the first coil terminal 71 is located near the rear end of the terminal support portion 52c, and the second coil terminal 72 is located near the front end of the terminal support portion 52c. However, the positions of the first coil terminal 71 and the second coil terminal 72 may be reversed. In this case, the third coil terminal 73 is located eccentrically forward with respect to the axis A of the body portion 53 of the roller 42.

[0062] Fig. 8 is a left side view of an electromagnet device 4 according to a modification. The electromagnet device 4 further includes an insulating wall 80. The insulating wall 80 is located between the first binding portion 71a and the third binding portion 73a. The insulating wall 80 is formed integrally with the roller 42. The insulating wall 80 extends in a direction intersecting the left-right direction. The insulating wall 80 protrudes upward from the terminal support portion 52c to connect with the side wall 52b. Alternatively, the insulating wall 80 may be a separate member from the roller 42. The insulating wall 80 may also be located between the second binding portion 72a and the third binding portion 73a.

[0063] The shape of the projection 52d of the second flange 52 of the roller 42 can be changed. Fig. 9 to 11 are diagrams showing modifications of the projection 52d. According to the illustration in Fig. 9, the tip of the protrusion 52d may protrude forward. The protrusion 52d may protrude in a direction from the base end portion 76 to the distal portion 77 of the third binding portion 73a. In this case, the movement of the lead wire of the coil 41 hooked to the protrusion 52d can be restricted.

[0064] According to the presentation in the Fig. 10 and Fig. 11, the first surface 56 of the protrusion 52d may include an inclined surface 56a. The inclined surface 56a is inclined from the tip of the protrusion 52d to the base end of the protrusion 52d in a direction approaching the rear surface of the protrusion 52d.

[0065] The order of connecting the lead wires of the coil 41 to the first to third binding portions 71a, 72a, and 73a can be changed. For example, a lead wire of the first winding of the coil 41 may first be tied to the third binding portion 73a, and then the winding is wound counterclockwise by a predetermined amount around the body portion 53. Subsequently, the other lead wire of the first winding may be tied to the first binding portion 71a. A lead wire of the second winding of the coil 41 may be tied to the second binding portion 72a, and then the winding is wound clockwise by a predetermined amount around the body portion 53. After that, the other lead wire of the second winding may be tied to the third binding portion 73a. REFERENCE SYMBOL

[0066] 1: Electromagnetic Relay; 41: Coil, 42: Roller, 52: Second Flange (an example of flange), 52c: Terminal support portion, 52d: Projection, 53: Body portion, 71: First coil terminal, 71a: First binding portion, 72: Second coil terminal, 72a: Second binding portion, 73: Third coil terminal, 73a: Third binding portion, 76: Base end portion, 77: Distal portion, 80: Insulation wall QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] JP 2015-041608

[0003]

Claims

[1] Electromagnetic device comprising: a coil; a reel including a body portion on which the spool is wound and a flange portion extending from the body portion; a first coil terminal including a first binding portion extending from the flange portion in an axial direction of the body portion; a second coil terminal including a second binding portion extending from the flange portion in the axial direction; and a third coil terminal located between the first coil terminal and the second coil terminal, the third coil terminal including a third binding portion including a base end portion and a distal portion extending from the base end portion in a direction approaching the second binding portion, wherein the base end portion of the third binding portion is located eccentrically relative to an axis of the body portion in a direction leading from the second coil terminal to the first coil terminal. [2] The electromagnet device according to claim 1, wherein the third binding portion has a length dimension substantially equal to a length dimension of the first binding portion and a length dimension of the second binding portion. [3] Electromagnetic device according to claim 1, wherein the flange portion of the reel includes a terminal support portion configured to support the third coil terminal and a projection facing the terminal support portion in the axial direction, and the third binding portion of the third coil terminal is located between the terminal support portion and the projection. [4] The electromagnetic device according to claim 1, wherein a distance from the base end portion of the third binding portion to the first binding portion is substantially equal to the distance from a tip of the distal portion of the third binding portion to the second binding portion. [5] Electromagnetic device according to claim 1, further comprising: an insulating wall located at least between the first binding section and the third binding section or between the second binding section and the third binding section. [6] Electromagnetic device according to claim 1, wherein the second coil terminal has the same shape as the first coil terminal, and the third coil terminal is a terminal formed by bending a terminal having the same shape as the first coil terminal.

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