CN116435141A - Electromagnetic relay - Google Patents

Abstract

The present disclosure provides an electromagnetic relay. An electromagnetic relay includes: a fixed contact; a movable contact that moves between a contact position where the movable contact contacts the fixed contact and a separation position where the movable contact separates from the fixed contact; an electromagnetic drive unit having a coil, and moving the movable contact with respect to the fixed contact in response to energization to the coil; a housing that houses the fixed contact, the movable contact, and the electromagnetic drive section; a 1 st contact terminal connected to the fixed contact or the movable contact and protruding downward from the housing; and a 1 st coil terminal connected to a 1 st end of the coil and protruding downward from the housing, wherein the 1 st contact terminal or the 1 st coil terminal is a specific terminal having a deformed portion between an upper end portion of the specific terminal and a lower end portion of the specific terminal.

Description

Electromagnetic relay

Technical Field

The present disclosure relates generally to electromagnetic relays. The present disclosure relates in more detail to an electromagnetic relay provided with a contact terminal and a coil terminal protruding from a housing.

Background

An electromagnetic relay is disclosed in patent document 1. The electromagnetic relay is composed of an insulating base housing to which a movable contact piece and a fixed contact piece are fixed, and an operating electromagnet assembled to the base housing.

The movable contact piece has a base. A substrate connection portion connected to the circuit substrate is formed at the lower end of the base portion so as to protrude downward. Further, at the left end edge of the base, an elastic spring piece having a movable contact at the tip rear surface protrudes toward the left.

The fixed contact has a base. A substrate connection portion connected to the circuit substrate is formed at the lower end of the base portion so as to protrude downward. Further, at the left end edge of the base, a flat plate portion having a fixed contact on the opposite surface of the movable contact projects leftward.

The operating electromagnet includes a flat yoke, a bobbin, and an armature. The coil bobbin has a winding body portion mounted to the body portion so as to cover upper and lower edges and a back surface of the body portion of the plate-shaped yoke. An exciting coil is wound around the winding body. The two ends of the exciting coil are respectively connected with a pair of coil terminals. The pair of coil terminals are inserted into a pair of through holes formed at both ends of the rail on the left end side of the substantially rectangular plate portion of the base housing.

The housing is a substantially rectangular member having a housing space formed therein, the housing space covering the base housing and the operating electromagnet assembled to the base housing.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2003-115248

Disclosure of Invention

The electromagnetic relay disclosed in patent document 1 is used by being fixed to a counterpart member such as a circuit board. For example, the terminals of the electromagnetic relay are inserted into the through holes of the counterpart member and the terminals are soldered to the counterpart member, whereby the electromagnetic relay is fixed to the counterpart member.

However, in such a conventional electromagnetic relay, in a state before the terminals are connected to the counterpart member by brazing or the like, if an impact is applied to the counterpart member or the electromagnetic relay or the counterpart member or the electromagnetic relay vibrates, the electromagnetic relay may tilt with respect to the counterpart member, and if the tilt becomes large, the electromagnetic relay may tilt.

An object of the present disclosure is to provide an electromagnetic relay capable of suppressing tilting with respect to a counterpart member in a state before connecting a terminal to the counterpart member.

An electromagnetic relay according to an aspect of the present disclosure includes: a fixed contact; a movable contact that moves between a contact position where the movable contact contacts the fixed contact and a separation position where the movable contact separates from the fixed contact; an electromagnetic drive unit having a coil and moving the movable contact with respect to the fixed contact in response to energization to the coil; a housing that houses the fixed contact, the movable contact, and the electromagnetic drive section; a 1 st contact terminal connected to the fixed contact or the movable contact and protruding downward from the housing; and a 1 st coil terminal connected to a 1 st end of the coil and protruding downward from the housing, wherein the 1 st contact terminal or the 1 st coil terminal is a specific terminal having a deformed portion between an upper end portion of the specific terminal and a lower end portion of the specific terminal.

Drawings

Fig. 1 is a front view of an electromagnetic relay of an embodiment.

Fig. 2 is a right side view of the electromagnetic relay.

Fig. 3 is a bottom view of the electromagnetic relay.

Fig. 4 is an exploded perspective view of the electromagnetic relay as seen from obliquely front.

Fig. 5 is an exploded perspective view of the electromagnetic relay as seen from obliquely front.

Fig. 6 is an exploded perspective view of a main portion of the electromagnetic relay as seen obliquely from the front.

Fig. 7 is a sectional view taken along line VII-VII of fig. 1.

Fig. 8 is a sectional view taken along line VIII-VIII of fig. 1.

Fig. 9 is a cross-sectional view of the line IX-IX of fig. 3.

Fig. 10 is a cross-sectional view taken along the X-X line of fig. 1.

Fig. 11 is a sectional view taken along line XI-XI of fig. 1.

Fig. 12 is a sectional view taken along line XII-XII of fig. 1.

Fig. 13 is a perspective view of a specific terminal of the electromagnetic relay.

Fig. 14 is a perspective view of a normal terminal of the electromagnetic relay.

Fig. 15 is a front view, partially in section, of the electromagnetic relay in a state of being arranged on a substrate.

Fig. 16 is a right side view, partially in cross section, of the electromagnetic relay in a state of being arranged on a substrate.

Fig. 17 is a front view, partially in section, of a state in which an electromagnetic relay of a comparative example is disposed on a substrate.

Fig. 18 is a right side view, partially in cross section, of a state in which an electromagnetic relay of a comparative example is disposed on a substrate.

Fig. 19 is a perspective view of a specific terminal of the electromagnetic relay of modification 1.

Fig. 20 is a perspective view of a specific terminal of the electromagnetic relay of modification 2.

Fig. 21 is a front view, partially in section, of a main part of a state in which an electromagnetic relay according to modification 3 is disposed on a substrate.

Fig. 22 is a view of the substrate viewed from below in a state where the electromagnetic relay is disposed on the substrate.

Fig. 23 is a partially cut-away front view of a main portion of a state in which an electromagnetic relay according to a modification is disposed on a substrate.

Fig. 24 is a right side view partially in cross section of a main portion of the electromagnetic relay in a state of being arranged on a substrate.

Description of the reference numerals

100. An electromagnetic relay; 1. a housing; 231. a fixed contact; 271. a movable contact; 3. an electromagnetic driving section; 33. a coil; 37. an armature; 38. a moving body; 381. a protrusion; 40. coil terminals; 41. 1 st contact terminal (contact terminal); 411. an upper end portion; 412. a lower end part; 42. a 2 nd contact terminal; 421. an upper end portion; 422. a lower end part; 43. a 1 st coil terminal; 431. an upper end portion; 432. a lower end part; 44. a 2 nd coil terminal; 441. an upper end portion; 442. a lower end part; 45. a fixed contact terminal; 46. a movable contact terminal; 5. a specific terminal; 51. an upper end portion; 52. a lower end part; 53. a deformation section; 531. an upper end portion; 532. a lower end part; 54. a torsion shape portion; 55. a protrusion; 56. a curved shape portion; 57. a protrusion; 6. a common terminal; 61. an upper end portion; 62. a lower end part; b11, B12, B21, B22, B31, B32, B41, B42, C1, C2, longitudinal axis; l1, straight line (imaginary line).

Detailed Description

Hereinafter, an electromagnetic relay according to an embodiment will be described with reference to the drawings. The drawings described in the following embodiments are schematic views, and the ratio of the size and thickness of each constituent element in the drawings is not necessarily limited to reflect the actual dimensional ratio.

In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", and the like may be used to describe directions, but these directions merely indicate relative positional relationships, and the present disclosure is not limited thereto. For example, the direction of the electromagnetic relay 100 in a state of actual use sometimes does not coincide with the direction of the electromagnetic relay 100 shown in the drawings of the present disclosure.

(1) Summary of the inventionsummary

As shown in fig. 1 to 6, the electromagnetic relay 100 of the present embodiment includes a housing 1, a fixed contact 231, a movable contact 271, an electromagnetic driving unit 3, a contact terminal 41, and a coil terminal 40.

The electromagnetic relay 100 according to the present embodiment is a relatively small-sized device that can be mounted on a substrate having a size of about 100mm×50mm, for example.

The electromagnetic relay 100 is fixed (connected) to the substrate 9 by, for example, inserting the contact terminal 41 and the coil terminal 40 of the electromagnetic relay 100 into a through hole (through-hole) 90 of the substrate 9 (see fig. 15 and 16) as the counterpart member, and soldering the contact terminal 41 and the coil terminal 40 to the substrate 9.

The movable contact 271 moves between a contact position and a separation position. The contact position is a position of the movable contact 271 that contacts the fixed contact 231. The separated position is a position of the movable contact 271 separated from the fixed contact 231.

The electromagnetic driving section 3 has a coil 33. The electromagnetic driving unit 3 moves the movable contact 271 relative to the fixed contact 231 in response to the energization to the coil 33.

The housing 1 houses the fixed contact 231, the movable contact 271, and the electromagnetic driving unit 3 (see fig. 9).

The contact terminal 41 is connected to either one of the fixed contact 231 and the movable contact 271 (the fixed contact 231 in the present embodiment as shown in fig. 6). The contact terminals 41 protrude downward from the housing 1. The coil terminal 40 is connected to the coil 33. The coil terminals 40 protrude downward from the housing 1.

At least one of the contact terminal 41 and the coil terminal 40 (here, the contact terminal 41) is a specific terminal 5. As shown in fig. 13, the specific terminal 5 has a deformed portion 53 between an upper end portion 51 of the specific terminal 5 and a lower end portion 52 of the specific terminal 5.

The cross section of the deformed portion 53 varies from top to bottom (or from bottom to top). In the present disclosure, the "cross section of the terminal" refers to a cross section of the terminal at an imaginary plane orthogonal to an axis along which the terminal extends (A1 st axis A1 described later). In the present disclosure, the term "change in cross section of the terminal" means to include at least one of a change in cross-sectional shape of the terminal, a change in direction of a longitudinal axis of the cross-sectional shape of the terminal, and a change in position of the cross-section of the terminal in a plane P1 orthogonal to the 1 st axis A1.

The deformed portion 53 has a different cross section from the upper end portion 51 of the specific terminal 5. In the present disclosure, "different in cross section from the upper end portion 51 of the specific terminal 5" means to include at least one of different in cross section shape from the upper end portion 51 of the specific terminal 5, different in direction of the longitudinal axis of the cross section shape from the upper end portion 51 of the specific terminal 5, and different in position of the cross section in the plane P1 orthogonal to the 1 st axis A1 from the upper end portion 51 of the specific terminal 5.

As is clear from fig. 13, the area of the projection area of the deformed portion 53 (deformed portion 53 as a whole) projected on the virtual plane orthogonal to the 1 st axis A1 is larger than the area of the projection area of the portion of the upper end portion 51 of the specific terminal 5 projected on the virtual plane.

As is clear from fig. 13, each of the upper end portion 51 of the specific terminal 5 and the lower end portion 52 of the specific terminal 5 has a rectangular cross section perpendicular to the direction in which the specific terminal 5 extends (here, the vertical direction), and when viewed from above, the longitudinal axis C1 of the cross section of the upper end portion 51 of the specific terminal 5 intersects with the longitudinal axis C2 of the cross section of the lower end portion 52 of the specific terminal 5. In the present embodiment, the description is given using an example in which the longitudinal axis C1 is orthogonal to the longitudinal axis C2, but the orthogonal is not necessarily required.

Since the electromagnetic relay 100 of the present embodiment includes the specific terminal 5 having the deformed portion 53, there is an advantage that tilting (tilting of the case 1) with respect to the counterpart member such as the substrate 9 can be suppressed as compared with the electromagnetic relay of the comparative example in which the specific terminal 5 is not included.

(2) Details of the

Hereinafter, the electromagnetic relay 100 according to the present embodiment will be described in more detail with reference to the drawings. Hereinafter, the direction in which the contact terminal 41 and the coil terminal 40 protrude from the housing 1 is also referred to as "lower", the opposite direction is also referred to as "upper", and the virtual axis extending vertically is also referred to as the 1 st axis A1. The side where the coil terminal 40 is located when viewed from the coil terminal 40 is also referred to as "right", the side where the coil terminal 41 is located when viewed from the coil terminal 40 is also referred to as "left", and the axis along which the contact terminal 41 and the coil terminal 40 are arranged along the virtual axis orthogonal to the 1 st axis A1 is also referred to as "2 nd axis A2". The virtual axis orthogonal to both the 1 st axis A1 and the 2 nd axis A2 is also referred to as A3 rd axis A3. In the present embodiment, the fixed contact 231 and the movable contact 271 face each other along the 3 rd axis A3, and hereinafter, the side where the fixed contact 231 is located when viewed from the movable contact 271 is also referred to as "front", and the side where the movable contact 271 is located when viewed from the fixed contact 231 is also referred to as "rear". However, these directions are for convenience of description, and are not limited to directions when the electromagnetic relay 100 is used.

The electromagnetic relay 100 is a so-called hinge relay. As shown in fig. 1 to 6, the electromagnetic relay 100 includes a contact device 2 including a fixed contact 231 and a movable contact 271, an electromagnetic driving section 3 including a coil 33, and a housing 1. Further, the electromagnetic relay 100 further includes a fixed contact terminal 45, a movable contact terminal 46, and two coil terminals 40, 40.

(2.1) outer casing

The housing 1 is substantially rectangular parallelepiped.

As shown in fig. 1 to 5, the housing 1 includes a base 11 and a cover 15. The base 11 is made of resin. The cover 15 is made of resin. As shown in fig. 4 and 5, the base 11 holds the contact device 2 and the electromagnetic driving portion 3. The cover 15 is attached to the base 11 so as to cover the base 11 holding the contact device 2 and the electromagnetic driving portion 3. The fixed contact 231 and the movable contact 271 of the contact device 2 and the electromagnetic driving unit 3 are disposed in the inner region of the housing 1. That is, the housing 1 houses the fixed contact 231, the movable contact 271, and the electromagnetic driving unit 3.

As shown in fig. 6, the base 11 integrally has a base portion 12 and a partition wall 13.

The base portion 12 is a rectangular plate-like shape having a thickness along the 1 st axis A1 and a larger dimension along the 2 nd axis A2 than along the 3 rd axis A3.

The partition wall 13 is a wall that rises upward along the 1 st axis A1 from the upper surface of the base 12. As shown in fig. 4 and 6, the contact device 2 is disposed on the front side of the partition wall 13. As shown in fig. 5 and 6, the electromagnetic driving portion 3 is disposed on the rear side of the partition wall 13. The contact device 2 and the electromagnetic drive 3 are electrically insulated by a partition wall 13.

As shown in fig. 6, a recess 131 recessed rearward is formed in the front surface of the partition wall 13 at the center portion of the lower side. The contact device 2 is disposed in the recess 131.

As shown in fig. 5, a separation wall 14 extending in the left-right direction is formed on the rear surface of the separation wall 13 so as to protrude rearward at the upper and lower centers. The coil 33 in the electromagnetic driving portion 3 is disposed above the separation wall 14, and the armature 37 (described later) in the electromagnetic driving portion 3 is disposed below the separation wall 14. The separation wall 14 physically separates the armature 37 from the coil 33, thereby increasing the insulation distance between the armature 37 and the coil 33.

As shown in fig. 6, a through hole 132 penetrating in the front-rear direction is formed in the partition wall 13 at a position lower than the partition wall 14 (see fig. 5) at the center of the left and right sides. The shape of the through hole 132 is a shape through which a protrusion 381 (described later) of the movable body 38 can pass, and is, for example, rectangular.

As shown in fig. 4 and 5, the cover 15 is a hollow rectangular box shape with an open lower surface. The cover 15 is assembled to the base 11 so as to cover the base 11 from above. A pair of legs 16 protruding downward are formed on the lower surfaces of the front wall and the rear wall of the cover 15.

In a state where the base 11 in which the contact device 2 and the electromagnetic driving portion 3 are assembled is covered with the cover 15, the adhesive 101 (see fig. 3 to 5) is applied to the back surface side of the base portion 12 of the base 11, and the cover 15 is fixed to the base 11.

As shown in fig. 2, a dimension D1 (height) of the housing 1 along the 1 st axis A1 is larger than a dimension D3 (width) along the 3 rd axis A3. The height of the housing 1 may be 2 times or more the width of the housing 1, or may be about 2.5 times.

As shown in fig. 3, a dimension D2 (length) of the housing 1 along the 2 nd axis A2 is larger than a dimension D3 (width) along the 3 rd axis A3. Here, the length of the housing 1 may be 2 times or more, particularly 3 times or more, or about 4 times or more the width of the housing 1. Thereby, narrowing of the electromagnetic relay 100 can be achieved.

(2.2) contact arrangement

As shown in fig. 4 and 6, the contact device 2 includes a fixed member 21 and a movable member 25.

The fixing member 21 has conductivity. The fixing member 21 is made of metal, for example. The fixing member 21 is plate-shaped having a thickness. As shown in fig. 6, the fixing member 21 integrally has a fixing piece 22 and a contact piece 23.

The fixing piece 22 is a portion for fixing the fixing member 21 to the base 11. The fixing piece 22 has a plate-shaped plate portion 221, a protruding portion 222 protruding rearward and leftward from the lower end of the plate portion 221, and a bent portion 223 bent in a substantially C-shape so as to protrude forward from the front end of the protruding portion 222. The fixing piece 22 is fixed to the base 11 by disposing the upper end of the plate portion 221 in the holding recess 111 formed in the front surface of the partition wall 13 of the base 11, and inserting (press-fitting) the protruding portion 222 into the press-fitting recess 112 formed in the front surface of the partition wall 13 of the base 11. The lower wall of the curved portion 223 covers the lower surface of the base 11.

The contact piece 23 is plate-shaped protruding rightward from the right side surface of the plate portion 221 of the fixing piece 22. A fixed contact 231 is provided on the rear surface of the contact piece 23. The fixed contact 231 is provided at the right end of the contact piece 23.

The fixed contact 231 is formed of a member independent of the contact piece 23 and is fixed to the contact piece 23. However, the fixed contact 231 is not limited to this, and may be formed integrally with the contact piece 23, and for example, the rear surface of a plate member constituting the contact piece 23 may be used as the fixed contact 231.

The movable member 25 has conductivity. The movable member 25 is made of metal, for example. The movable member 25 is plate-shaped having a thickness. As shown in fig. 6, the movable member 25 integrally has a fixed piece 26, a working piece 27, and a spring piece 28.

The fixing piece 26 is a portion for fixing the movable member 25 to the base 11. The fixing piece 26 has a plate-shaped plate portion 261, a pair of protruding portions 262 protruding rearward from both left and right ends of a lower side portion of the plate portion 261, and a bent portion 263 bent in a substantially C-shape so as to protrude forward from the lower end of the plate portion 261. The fixing piece 26 is fixed to the base 11 by inserting (press-fitting) the pair of protruding portions 262 into the pair of press-fitting recesses 113 formed in the front surface of the partition wall 13 of the base 11. The lower wall of the bent portion 263 covers the lower surface of the base 11.

The work sheet 27 is disposed at a position where the left end portion of the work sheet 27 faces the through hole 132 of the partition wall 13 of the base 11.

Further, the working piece 27 is opposed to the rear surface of the contact piece 23 of the fixing member 21. A movable contact 271 is provided on the front surface of the working sheet 27. The movable contact 271 is provided at the right end of the working piece 27. The movable contact 271 is opposed to the fixed contact 231 along the 3 rd axis A3. The movable contact 271 moves between a contact position where it contacts the fixed contact 231 and a separation position where it separates from the fixed contact 231.

A slit 272 extending leftward from the right end of the working sheet 27 is formed in the working sheet 27. Thus, the right end of the working piece 27 is formed in a vertically separated binary shape. Movable contacts 271 are provided in upper and lower portions of the working sheet 27 separated by a slit 272, respectively.

The movable contact 271 is formed of a member independent of the working sheet 27 and fixed to the working sheet 27. However, the movable contact 271 is not limited to this, and may be integrally formed with the working sheet 27, and for example, the front surface of a plate member constituting the working sheet 27 may be used as the movable contact 271.

The spring piece 28 is a so-called leaf spring. The spring piece 28 connects between the right side surface of the plate portion 261 of the fixing piece 26 and the left side surface of the working piece 27.

In order to secure the elasticity of the spring piece 28, the thickness of the movable member 25 is thinner than the thickness of the fixed member 21.

The movable contact 271 and the fixed contact 231 are disposed below the center in the housing 1. This makes it possible to shorten the length of the circuit including the movable contact 271 and the fixed contact 231, as compared with the case where the movable contact and the fixed contact are located above the center in the housing. Further, the distance between the contact position where the movable contact 271 contacts the fixed contact 231 and the contact position where the electromagnetic relay 100 contacts the counterpart member (e.g., the contact portion of the leg 16 and the substrate 9 as shown in fig. 15) becomes short. This can reduce the amount of torque around the contact portion between the electromagnetic relay 100 and the counterpart member when the movable contact 271 and the fixed contact 231 are in contact.

(2.3) electromagnetic drive portion

As shown in fig. 4 to 6, the electromagnetic driving unit 3 includes a core 31, a bobbin 32, a coil 33, two coil connecting members 34 and 34, an armature 37, and a moving body 38.

The core 31 is formed of a magnetic material. The core 31 is thin plate-like having a thickness on the 3 rd axis A3. The core 31 has a main body portion 311 extending laterally along A2 nd axis A2, A1 st leg portion 312 extending downward from a left end of the main body portion 311 along A1 st axis A1, and A2 nd leg portion 313 extending downward from a right end of the main body portion 311 along the 1 st axis A1, and is formed in a substantially C-shape with a lower opening.

The bobbin 32 is made of resin. The bobbin 32 is formed of, for example, a Liquid Crystal Polymer (LCP). The bobbin 32 integrally has a main portion 321, a pair of flange portions 322, a 1 st extension portion 323, and a2 nd extension portion 324.

The main portion 321 is a groove shape having a substantially C-shaped cross section, which is open forward and orthogonal to the 2 nd axis A2. The main portion 321 extends laterally along the 2 nd axis A2.

A pair of flange portions 322, 322 are formed at both left and right ends of the main portion 321.

The 1 st extending portion 323 extends leftward from the left end of the main portion 321. The 1 st extending portion 323 is formed in a groove shape that is opened forward and downward. The groove of the 1 st extension 323 is connected with the groove of the main portion 321. A plate-like restriction piece 325 protruding downward is provided at the lower end of the rear surface of the 1 st extension 323.

The 2 nd extension portion 324 extends downward after extending rightward from the right end of the main portion 321. The 2 nd extension portion 324 is formed in a groove shape that is opened forward. The groove of the 2 nd extension 324 is connected with the groove of the main portion 321. A plate-like positioning piece 326 protruding downward is provided at the lower end of the rear surface of the 2 nd extension 324. On the 3 rd axis A3, the front surface of the positioning piece 326 is located on the front side of the front surface of the restriction piece 325.

The core 31 is fitted (press-fitted) into the grooves (grooves of the main portion 321, the 1 st extending portion 323, and the 2 nd extending portion 324) of the bobbin 32, so that the core 31 is held by the bobbin 32.

A pair of through holes 327, 327 penetrating in the front-rear direction along the 3 rd axis A3 are formed in the upper wall of the 2 nd extension portion 324 of the bobbin 32. A holding recess 328 recessed rearward is formed in the front surface of the right wall of the 2 nd extension portion 324 of the bobbin 32, and a holding recess 328 recessed rearward is formed in the front surface of the flange portion 322 on the right side of the bobbin 32.

The coil 33 is formed into a hollow cylindrical shape by winding copper wire, for example. The coil 33 is wound around the main body 311 of the core 31 and the main body 321 of the bobbin 32 in a state where the core 31 is fitted into the slot of the bobbin 32.

The two coil connecting members 34, 34 have conductivity. The two coil connection members 34, 34 are made of metal, for example. The two coil connection members 34, 34 are portions for connecting the coil 33 to the two coil terminals 40, respectively. Hereinafter, a member which is relatively inner (left side in the present embodiment) of the two coil connection members 34, 34 is also referred to as a "1 st coil connection member 35", and a member which is relatively outer (right side in the present embodiment) is also referred to as a "2 nd coil connection member 36".

The 1 st coil connecting member 35 integrally has a1 st extension piece 351, a1 st binding portion 352, and a1 st holding piece 353. The 1 st extending piece 351 is a plate having a thickness along the 3 rd axis A3 and extending along the 1 st axis A1. The 1 st binding portion 352 is a rod-like member protruding rearward along the 3 rd axis A3 from the upper end portion of the 1 st extending piece 351. The 1 st holding piece 353 is a plate-like piece protruding rearward from the middle of the 1 st extending piece 351 in the vertical direction.

The 2 nd coil connecting member 36 integrally has a 2 nd extension piece 361, a 2 nd bundling portion 362, and a 2 nd holding piece 363. The 2 nd extension sheet 361 has a thickness along the 3 rd axis A3 and extends along the 1 st axis A1. The 2 nd bundling part 362 is a bar-like member protruding rearward along the 3 rd axis A3 from the upper end of the 2 nd extension piece 361. The 2 nd holding piece 363 is a plate-like shape protruding rearward from the middle of the upper and lower sides of the 2 nd extension piece 361.

The 1 st coil connecting member 35 and the 2 nd coil connecting member 36 are held to the bobbin 32. The 1 st binding portion 352 is inserted from the front into one of the pair of through holes 327, 327 (left through hole 327) of the 2 nd extension portion 324 of the bobbin 32, and the 1 st holding piece 353 is inserted (press-fitted) from the front into the holding recess 328 of the flange portion 322, whereby the 1 st coil connecting member 35 is held by the bobbin 32. The 2 nd binding portion 362 is inserted (press-fitted) from the front into the other one of the pair of through holes 327, 327 (right through hole 327) of the 2 nd extension portion 324 of the bobbin 32, and the 2 nd holding piece 363 is inserted (press-fitted) into the holding recess 328 of the 2 nd extension portion 324 from the front, whereby the 2 nd coil connecting member 36 is held by the bobbin 32.

The 1 st end of the coil 33 is connected to the 1 st bundling part 352 of the 1 st coil connecting member 35. The 2 nd end of the coil 33 is connected to the 2 nd bundling part 362 of the 2 nd coil connecting member 36. As shown in fig. 5, a notch 329 is formed in the flange portion 322 on the right side of the coil bobbin 32, and both ends of the copper wire led out from the coil 33 through the notch 329 are connected to the 1 st binding portion 352 and the 2 nd binding portion 362, respectively.

The armature 37 is formed of a magnetic material. The armature 37 is a rectangular plate-like member having a thickness along the 3 rd axis A3 and extending along the 2 nd axis A2.

The armature 37 is disposed so as to swing back and forth with the right end portion of the armature 37 as a swing axis. Specifically, the right end portion of the armature 37 is located between the 2 nd leg 313 of the core 31 and the positioning piece 326 of the bobbin 32. The distance between the 2 nd leg 313 and the positioning piece 326 (the dimension along the 3 rd axis A3) is substantially the same (slightly larger) than the thickness of the right end portion of the armature 37 (the dimension along the 3 rd axis A3). Thereby, the movement of the right end portion of the armature 37 back and forth along the 3 rd axis A3 is restricted. On the other hand, the left end portion of the armature 37 is located between the 1 st leg portion 312 of the core 31 and the restriction piece 325 of the bobbin 32. As shown in fig. 7, the distance between the 1 st leg 312 and the restriction piece 325 (the dimension along the 3 rd axis A3) is larger than the thickness of the left end portion of the armature 37 (the dimension along the 3 rd axis A3). Thereby, the left end portion of the armature 37 can move back and forth along the 3 rd axis A3. However, excessive forward movement of the left end portion of the armature 37 is restricted by the 1 st leg portion 312, and excessive rearward movement is restricted by the restricting piece 325.

The movable body 38 is made of resin. The movable body 38 is formed of, for example, a liquid crystal polymer. The moving body 38 is cylindrical and covers the left and right central portions of the armature 37. The movable body 38 is, for example, a resin molded article having the armature 37 as an insert.

A forward projecting protrusion 381 is formed on the front surface of the movable body 38. The protrusion 381 is inserted into the through hole 132 of the partition wall 13 of the base 11 from behind, and is exposed into the recess 131 of the partition wall 13. The protruding amount of the protrusion 381 protruding into the recess 131 changes in accordance with the forward and backward movement of the armature 37.

The front end of the protrusion 381 opposes the rear surface of the working piece 27 of the movable member 25. When the protrusion 381 moves forward in response to the forward movement of the armature 37, the working piece 27 is pushed by the protrusion 381 to move forward, and the movable contact 271 contacts the fixed contact 231.

(2.4) terminal

As shown in fig. 1 to 3 and 6, the electromagnetic relay 100 includes a fixed contact terminal 45, a movable contact terminal 46, and two coil terminals 40 and 40.

The fixed contact terminal 45 has conductivity. The fixed contact terminal 45 is made of metal, for example. As shown in fig. 6 and 8, the fixed contact terminal 45 is connected to the fixed member 21. The fixed contact terminal 45 extends downward from the bent portion 223 of the fixing piece 22 of the fixing member 21. The fixed contact terminal 45 has a tapered shape at the tip end of the lower side.

In the present embodiment, the fixed contact terminal 45 is integrally formed with the fixed member 21. For example, the fixing member 21 and the fixed contact terminal 45 are integrally formed by subjecting one metal plate to punching and bending.

The movable contact terminal 46 has conductivity. The movable contact terminal 46 is made of metal, for example. As shown in fig. 6 and 7, the movable contact terminal 46 is connected to the movable member 25. The movable contact terminal 46 extends downward from the bent portion 263 of the fixing piece 26 of the movable member 25. The movable contact terminal 46 has a tapered shape at the tip end of the lower side.

In the present embodiment, the movable contact terminal 46 is integrally formed with the movable member 25. For example, the movable member 25 and the movable contact terminal 46 are integrally formed by punching and bending a single metal plate.

As described above, the thickness of the movable member 25 is thinner than the thickness of the fixed member 21, and thus the thickness of the movable contact terminal 46 is thinner than the thickness of the fixed contact terminal 45.

Hereinafter, the contact terminal located relatively on the inner side (the fixed contact terminal 45 located on the right side in the present embodiment) of the fixed contact terminal 45 and the movable contact terminal 46 is also referred to as "1 st contact terminal 41", and the contact terminal located relatively on the outer side (the movable contact terminal 46 located on the left side in the present embodiment) is also referred to as "2 nd contact terminal 42".

As shown in fig. 8 and 9, the 1 st contact terminal 41 (fixed contact terminal 45) has an upper end portion 411 and a lower end portion 412. In the present embodiment in which the upper end portion 411 of the 1 st contact terminal 41 (fixed contact terminal 45) is a portion of the 1 st contact terminal 41 connected to the bent portion 223 of the fixing piece 22 of the fixing member 21, the lower end portion 412 of the 1 st contact terminal 41 (fixed contact terminal 45) is tapered. In the present disclosure, a portion other than the tapered portion is sometimes described as the lower end portion 412 of the 1 st contact terminal 41.

As shown in fig. 7 and 9, the 2 nd contact terminal 42 (movable contact terminal 46) has an upper end portion 421 and a lower end portion 422. The upper end portion 421 of the 2 nd contact terminal 42 (movable contact terminal 46) is a portion of the 2 nd contact terminal 42 connected to the bent portion 263 of the fixing piece 26 of the movable member 25. In the present embodiment, the lower end portion 422 of the 2 nd contact terminal 42 (movable contact terminal 46) is tapered. In the present disclosure, a portion other than the tapered portion is sometimes described as the lower end portion 422 of the 2 nd contact terminal 42.

The two coil terminals 40, 40 each have conductivity. The two coil terminals 40, 40 are each made of, for example, metal. As shown in fig. 6, two coil terminals 40, 40 are connected to the two coil connecting members 34, respectively. Hereinafter, a member located relatively on the inner side (left side in the present embodiment) of the two coil terminals 40, 40 is also referred to as a "1 st coil terminal 43", and a member located relatively on the outer side (right side in the present embodiment) is also referred to as a "2 nd coil terminal 44".

As shown in fig. 6 and 9, the 1 st coil terminal 43 is connected to the 1 st coil connecting member 35. The 1 st coil terminal 43 extends downward from the lower end of the 1 st extension piece 351 of the 1 st coil connecting member 35. The 1 st coil terminal 43 has a chamfer (curved) shape at the top end of the lower side.

As shown in fig. 9, the upper end portion 431 of the 1 st coil terminal 43 is a portion of the 1 st coil terminal 43 connected to the 1 st extension piece 351 of the 1 st coil connecting member 35. In the present embodiment, the lower end portion 432 of the 1 st coil terminal 43 is formed in a chamfered shape. In the present disclosure, a portion other than the portion where the chamfer shape is formed is sometimes described as the lower end portion 432 of the 1 st coil terminal 43.

The 1 st coil terminal 43 has a smaller dimension (width) along the 2 nd axis A2 than the 1 st extension piece 351. In the present embodiment, the 1 st coil terminal 43 is integrally formed with the 1 st coil connecting member 35.

As shown in fig. 6 and 9, the 2 nd coil terminal 44 is connected to the 2 nd coil connecting member 36. The 2 nd coil terminal 44 extends downward from the lower end of the 2 nd extension piece 361 of the 2 nd coil connecting member 36. The 2 nd coil terminal 44 has a chamfer (curved) shape at the top end of the lower side.

As shown in fig. 9, the upper end portion 441 of the 2 nd coil terminal 44 is a portion of the 2 nd coil terminal 44 connected to the 2 nd extension piece 361 of the 2 nd coil connecting member 36. In the present embodiment, the lower end portion 442 of the 2 nd coil terminal 44 is formed in a chamfered shape. In the present disclosure, a portion other than the portion where the chamfer shape is formed is sometimes described as the lower end portion 442 of the 2 nd coil terminal 44.

The 2 nd coil terminal 44 has a smaller dimension (width) along the 2 nd axis A2 than the 2 nd extension piece 361. In the present embodiment, the 2 nd coil terminal 44 is integrally formed with the 2 nd coil connecting member 36.

As shown in fig. 1 to 3 and 9, the fixed contact terminal 45 (1 st contact terminal 41), the movable contact terminal 46 (2 nd contact terminal 42), the 1 st coil terminal 43, and the 2 nd coil terminal 44 protrude downward from the lower surface of the housing 1.

In the electromagnetic relay 100 of the present embodiment, the movable contact terminal 46 (the 2 nd contact terminal 42), the fixed contact terminal 45 (the 1 st contact terminal 41), the 1 st coil terminal 43, and the 2 nd coil terminal 44 are arranged in this order along the 2 nd axis A2. As shown in fig. 3, the movable contact terminal 46 (the 2 nd contact terminal 42), the fixed contact terminal 45 (the 1 st contact terminal 41), the 1 st coil terminal 43, and the 2 nd coil terminal 44 are at the same position on the 3 rd axis A3. That is, the 2 nd contact terminal 42 (movable contact terminal 46), the 1 st contact terminal 41 (fixed contact terminal 45), the 1 st coil terminal 43, and the 2 nd coil terminal 44 are arranged in a line (see a virtual line L1 in fig. 3) on the lower surface of the housing 1. Further, the lower surface of the housing 1 is rectangular in shape. The 2 nd contact terminal 42 (movable contact terminal 46), the 1 st contact terminal 41 (fixed contact terminal 45), the 1 st coil terminal 43, and the 2 nd coil terminal 44 are disposed near one side of the width direction axis (3 rd axis A3) of the lower surface of the housing 1, and are disposed near the front side.

As shown in fig. 10, in the electromagnetic relay 100 of the present embodiment, the cross-sectional shape of the upper end portion 411 of the 1 st contact terminal 41 (fixed contact terminal 45), the cross-sectional shape of the upper end portion 421 of the 2 nd contact terminal 42 (movable contact terminal 46), the cross-sectional shape of the upper end portion 431 of the 1 st coil terminal 43, and the cross-sectional shape of the upper end portion 441 of the 2 nd coil terminal 44 are rectangular, respectively. In the present disclosure, the "cross-sectional shape of the terminal" refers to a shape of a cross-section of the terminal at an imaginary plane orthogonal to an axis (1 st axis A1) along which the terminal extends. As shown in fig. 10, the longitudinal axis B11 of the cross-sectional shape of the upper end portion 411 of the 1 st contact terminal 41 (fixed contact terminal 45), the longitudinal axis B21 of the cross-sectional shape of the upper end portion 421 of the 2 nd contact terminal 42 (movable contact terminal 46), the longitudinal axis B31 of the cross-sectional shape of the upper end portion 431 of the 1 st coil terminal 43, and the longitudinal axis B41 of the cross-sectional shape of the upper end portion 441 of the 2 nd coil terminal 44 are all along the 2 nd axis A2. In other words, when viewed from above, the longitudinal axis B11 of the cross-sectional shape of the upper end portion 411 of the 1 st contact terminal 41 (fixed contact terminal 45), the longitudinal axis B21 of the cross-sectional shape of the upper end portion 421 of the 2 nd contact terminal 42 (movable contact terminal 46), the longitudinal axis B31 of the cross-sectional shape of the upper end portion 431 of the 1 st coil terminal 43, and the longitudinal axis B41 of the cross-sectional shape of the upper end portion 441 of the 2 nd coil terminal 44 are all along the axis (2 nd axis A2) in which the 1 st contact terminal 41, the 2 nd contact terminal 42, the 1 st coil terminal 43, and the 2 nd coil terminal 44 are arranged.

In the electromagnetic relay 100 of the present embodiment, at least one of the 1 st contact terminal 41 (fixed contact terminal 45), the 2 nd contact terminal 42 (movable contact terminal 46), the 1 st coil terminal 43, and the 2 nd coil terminal 44 is the specific terminal 5. In the electromagnetic relay 100 of the present embodiment, the 1 st contact terminal 41 (fixed contact terminal 45) is the specific terminal 5. As described above, the specific terminal 5 has the deformed portion 53 between the upper end portion 51 and the lower end portion 52.

As shown in fig. 13, in the electromagnetic relay 100 of the present embodiment, the deformed portion 53 of the specific terminal 5 (1 st contact terminal 41) is a twisted portion 54.

The twisted portion 54 is a shape in which the longitudinal axis of the cross-sectional shape gradually changes from top to bottom (along the 1 st axis A1) while maintaining the cross-sectional shape of the deformed portion 53. As is clear from fig. 10 to 12, the direction of the longitudinal axis of the cross-sectional shape of the 1 st contact terminal 41 (fixed contact terminal 45) as the specific terminal 5 gradually changes. Here, the intersecting angle of the longitudinal axis of the cross-sectional shape of the twisted portion 54 with respect to the longitudinal axis of the cross-sectional shape of the twisted portion 54 (deformed portion 53) at the upper end portion 531 gradually changes (increases) from top to bottom. That is, the longitudinal axis of the cross-sectional shape of the twisted portion 54 rotates from top to bottom with respect to the longitudinal axis of the cross-sectional shape of the twisted portion 54 (the deformed portion 53) at the upper end portion 531. The intersecting angle here is an angle centered on the center axis of the specific terminal 5.

The twist-shaped portion 54 has a twist angle. The torsion angle is an angle measured along the direction of rotation of the longitudinal axis of the cross-sectional shape of the torsion-shaped portion 54 from the longitudinal axis of the cross-sectional shape of the upper end portion 531 to the longitudinal axis of the cross-sectional shape of the lower end portion 532 of the torsion-shaped portion 54 (deformed portion 53). The torsion angle of the torsion-shaped portion 54 may be 40 degrees or more, 60 degrees or more, 90 degrees or more, or 180 degrees or more. If the torsion angle is 40 degrees or more, the function of suppressing the inclination of the electromagnetic relay 100 with respect to the counterpart member is sufficiently exhibited. The upper limit of the torsion angle of the torsion-shaped portion 54 is not particularly limited. The torsion angle of the torsion-shaped portion 54 may be, for example, 90 degrees.

In the electromagnetic relay 100 of the present embodiment, the torsion direction of the torsion-shaped portion 54 is a direction in which the longitudinal axis of the cross-sectional shape of the deformed portion 53 rotates counterclockwise from top to bottom when viewed from below.

As is clear from fig. 10 and 12, when viewed from above, the longitudinal axis B11 (see fig. 10) of the cross-sectional shape of the upper end portion 411 of the 1 st contact terminal 41, which is the specific terminal 5, intersects with the longitudinal axis B12 (see fig. 12) of the cross-sectional shape of the lower end portion 412. That is, when viewed from above, the longitudinal axis C1 of the cross-sectional shape of the upper end portion 51 of the specific terminal 5 (fixed contact terminal 45) intersects with the longitudinal axis C2 of the cross-sectional shape of the lower end portion 52 of the specific terminal 5. In the specific terminal 5, the intersecting angle between the longitudinal axis of the cross-sectional shape of the upper end portion 51 and the longitudinal axis of the cross-sectional shape of the lower end portion 52 may be 40 degrees or more, or 60 degrees or more.

In the electromagnetic relay 100 of the present embodiment, in the 1 st contact terminal 41 as the specific terminal 5, the intersection angle between the longitudinal axis B11 of the cross-sectional shape of the upper end portion 411 and the longitudinal axis B12 of the cross-sectional shape of the lower end portion 412 is 90 degrees. That is, the longitudinal axis C1 of the cross-sectional shape of the upper end portion 51 of the specific terminal 5 is orthogonal to the longitudinal axis C2 of the cross-sectional shape of the lower end portion 52 of the specific terminal 5 when viewed from above.

In the electromagnetic relay 100 of the present embodiment, the 2 nd contact terminal 42 (movable contact terminal 46), the 1 st coil terminal 43, and the 2 nd coil terminal 44, which are terminals other than the 1 st contact terminal 41 (fixed contact terminal 45), are terminals having a constant cross section from the upper end portion 61 to the lower end portion 62 (see fig. 14; hereinafter, also referred to as "normal terminals 6"). The terminal 6 does not generally include a shape corresponding to the deformed portion 53. In other words, the 2 nd contact terminal 42 (movable contact terminal 46) does not include a shape corresponding to the deformed portion 53 between the upper end portion 421 and the lower end portion 422. That is, the 2 nd contact terminal 42 (movable contact terminal 46) extends straight. The 1 st coil terminal 43 does not include a shape corresponding to the deformed portion 53 between the upper end portion 431 and the lower end portion 432, and extends vertically. The 2 nd coil terminal 44 does not include a shape corresponding to the deformed portion 53 between the upper end portion 441 and the lower end portion 442, and extends vertically. That is, the 2 nd coil terminal 44 extends straight.

As is clear from fig. 10 to 12, the direction of the longitudinal axis of each of the cross-sectional shapes of the 2 nd contact terminal 42, the 1 st coil terminal 43, and the 2 nd coil terminal 44, which are the normal terminals 6, is constant (unchanged). As is clear from fig. 10 and 12, the longitudinal axis B21 of the cross-sectional shape of the upper end portion 421 of the 2 nd contact terminal 42, which is the normal terminal 6, coincides with the longitudinal axis B22 of the cross-sectional shape of the lower end portion 422 when viewed from above. The longitudinal axis B31 of the cross-sectional shape of the upper end portion 431 of the 1 st coil terminal 43 of the normal terminal 6 coincides with the longitudinal axis B32 of the cross-sectional shape of the lower end portion 432. The longitudinal axis B41 of the cross-sectional shape of the upper end portion 441 of the 2 nd coil terminal 44 of the normal terminal 6 coincides with the longitudinal axis B42 of the cross-sectional shape of the lower end portion 442.

The specific terminal 5 may be said to be a terminal having a shape (deformed portion 53) different from that of the normal terminal 6. The deformed portion 53 can be formed by, for example, locally processing (for example, twisting) the normal terminal 6 and deforming it. However, the present invention is not limited to this, and the specific terminal 5 having the shape of the deformed portion 53 may be manufactured without performing the deforming process.

As shown in fig. 1, in an electromagnetic relay 100 of the present embodiment, a deformed portion 53 is located outside a housing 1. More specifically, the deformation portion 53 is located below the lowermost end of the housing 1. The lowermost end of the housing 1 is, for example, a portion that contacts a counterpart member such as the substrate 9 at the lower end of the housing 1 in a state in which the electromagnetic relay 100 is disposed on the counterpart member. The lowermost end of the housing 1 is here the lower end of the leg 16 of the cover 15. In the electromagnetic relay 100 of the present embodiment, the whole of the deformation portion 53 is located below the lowermost end of the housing 1, but at least part (at least the lower end portion) of the deformation portion 53 may be located below the lowermost end of the housing 1.

(2.5) action

Hereinafter, the operation of the electromagnetic relay 100 will be briefly described.

First, when no voltage is applied between the two coil terminals 40, 40 and no current is supplied to the coil 33 (no current is supplied), the working piece 27 is relatively positioned at the rear side by the biasing force of the spring piece 28 of the movable member 25, and the movable contact 271 is separated from the fixed contact 231. The armature 37 and the movable body 38 are pushed rearward by the working piece 27 via the protrusion 381, and the left end portion of the armature 37 is located relatively rearward (a position close to the restricting piece 325).

When a voltage is applied between the two coil terminals 40, 40 to flow a current (current is supplied) to the coil 33, the coil 33 is excited, and a magnetic attraction force is generated between the left end portion of the armature 37 and the 1 st leg portion 312 of the core 31, and the left end portion of the armature 37 is attracted by the 1 st leg portion 312. That is, the armature 37 and the moving body 38 rotate (counterclockwise when viewed from above) with the right end portion of the armature 37 as a rotation axis.

By the rotation of the movable body 38, the protrusion 381 moves forward, and the tab 27 is pushed by the protrusion 381 to move forward. Thereby, the movable contact 271 provided on the front surface of the working piece 27 contacts the fixed contact 231, and a circuit is formed between the movable contact terminal 46 and the fixed contact terminal 45.

On the other hand, when the voltage application between the two coil terminals 40 and 40 is released (energization is released), the working piece 27 moves rearward by the biasing force of the spring piece 28 of the movable member 25, and the movable contact 271 is separated from the fixed contact 231. Thereby, the circuit between the movable contact terminal 46 and the fixed contact terminal 45 is cut off. Further, the protrusion 381 is pressed by the working piece 27, and the armature 37 and the moving body 38 are also moved rearward.

(2.6) advantages

The advantages of the electromagnetic relay 100 of the present embodiment will be described in conjunction with comparison with the electromagnetic relay 200 of the comparative example.

The electromagnetic relay 200 of the comparative example has the same basic structure as the electromagnetic relay 100 of the present embodiment. However, as shown in fig. 17 and 18, the electromagnetic relay 200 of the comparative example is different from the electromagnetic relay 100 of the present embodiment in that the 1 st contact terminal 41 (fixed contact terminal 45) is also the normal terminal 6 and does not have the specific terminal 5. In the electromagnetic relay 200 of the comparative example, the same components as those of the electromagnetic relay 100 of the present embodiment are denoted by common reference numerals, and the description thereof is omitted.

As shown in fig. 17 and 18, the electromagnetic relay 200 of the comparative example is fixed (connected) to the substrate 9 by inserting 4 terminals 41, 42, 43, 44 into 4 through holes 90 of the substrate 9, respectively, and soldering the terminals 41, 42, 43, 44 to the substrate 9 in this state.

In the electromagnetic relay 200 of the comparative example, in a state before the terminals 41, 42, 43, 44 are soldered to the substrate 9, a force (impact, vibration, etc. leftward or rightward in fig. 17) along the 2 nd axis A2 may be applied to the housing 1 or the substrate 9. Here, in the electromagnetic relay 200 of the comparative example, as shown in fig. 17, the dimension (width) of the 1 st contact terminal 41 along the 2 nd axis A2 is substantially the same (slightly smaller) than the diameter of the through hole 90, and the dimension (width) of the 2 nd contact terminal 42 along the 2 nd axis A2 is substantially the same (slightly smaller) than the diameter of the through hole 90. Therefore, in the electromagnetic relay 200 of the comparative example, even if a force (impact, vibration, or the like) along the 2 nd axis A2 is applied to the housing 1 or the substrate 9, the 1 st contact terminal 41 and/or the 2 nd contact terminal 42 are immediately brought into contact with the wall surface of the through hole 90. In the electromagnetic relay 200 of the comparative example, for example, even if the housing 1 rotates counterclockwise in fig. 17 about the 3 rd axis A3 with the leg 16 on the left side as a fulcrum, the 2 nd coil terminal 44 contacts the wall surface of the through hole 90 by only a slight angle. Therefore, in the electromagnetic relay 200 of the comparative example, rotation about the 3 rd axis A3 as the rotation axis is difficult to occur, and tilting of the housing 1 with respect to the substrate 9 in this direction is difficult to occur.

In the electromagnetic relay 200 of the comparative example, in a state before the terminals 41, 42, 43, and 44 are soldered to the substrate 9, a force along the 3 rd axis A3 (a shock, vibration, or the like to the left or right in fig. 18) may be applied to the housing 1 or the substrate 9. In the electromagnetic relay 200 of the comparative example, as shown in fig. 18, the 1 st contact terminal 41, the 2 nd contact terminal 42, the 1 st coil terminal 43, and the 2 nd coil terminal 44 which are the normal terminals 6 are respectively plate-shaped with the longitudinal axis of the cross-sectional shape along the 2 nd axis A2, and the dimensions (thicknesses) of the respective terminals 41, 42, 43, 44 along the 3 rd axis A3 are smaller than the diameter of the through hole 90. Therefore, in the electromagnetic relay 200 of the comparative example, when a force (impact, vibration, or the like) along the 3 rd axis A3 is applied to the housing 1 or the substrate 9, there is a possibility that the electromagnetic relay rotates about the 2 nd axis A2 as a rotation axis. Therefore, the electromagnetic relay 200 of the comparative example may be inclined with respect to the substrate 9 (see the two-dot chain line of fig. 18). Further, if the inclination of the electromagnetic relay 200 becomes large, the terminals 41, 42, 43, 44 may be separated from the through-hole 90, and the electromagnetic relay 200 may be tilted.

On the other hand, as shown in fig. 15 and 16, the electromagnetic relay 100 of the present embodiment is also fixed (connected) to the substrate 9 by inserting 4 terminals 41, 42, 43, 44 into 4 through holes 90 of the substrate 9, respectively, and soldering the terminals 41, 42, 43, 44 to the substrate 9 in this state.

As shown in fig. 15 and 16, in the electromagnetic relay 100 of the present embodiment, at least part of the deformed portion 53 of the 1 st contact terminal 41 as the specific terminal 5 is located inside the through hole 90 of the substrate 9. That is, in a state where the lowermost end of the housing 1 (the lower end of the leg portion 16) is in contact with the upper surface 91 of the substrate 9, the upper end portion 531 of the deformation portion 53 is located above the lower surface 92 of the substrate 9, and the lower end portion 532 of the deformation portion 53 is located below the upper surface 91 of the substrate 9.

In the electromagnetic relay 100 according to the present embodiment, the upper end portion 531 of the deformed portion 53 is located inside the through hole 90. That is, in a state where the lowermost end of the housing 1 is in contact with the upper surface 91 of the substrate 9, the upper end portion 531 of the deformation portion 53 is located below the upper surface 91 of the substrate 9 and above the lower surface 92 of the substrate 9.

In the electromagnetic relay 100 according to the present embodiment, the lower end portion 532 of the deformed portion 53 is located inside the through hole 90. That is, in a state where the lowermost end of the housing 1 is in contact with the upper surface 91 of the substrate 9, the lower end portion 532 of the deformation portion 53 is located below the upper surface 91 of the substrate 9 and above the lower surface 92 of the substrate 9.

In the electromagnetic relay 100 according to the present embodiment, the entire deformation portion 53 is located inside the through hole 90. That is, in a state where the lowermost end of the housing 1 is in contact with the upper surface 91 of the substrate 9, the upper end portion 531 of the deformation portion 53 is located below the upper surface 91 of the substrate 9, and the lower end portion 532 of the deformation portion 53 is located above the lower surface 92 of the substrate 9.

In the electromagnetic relay 100 according to the present embodiment, as in the electromagnetic relay 200 of the comparative example, in a state before the terminals 41, 42, 43, and 44 are soldered to the substrate 9, a force along the 2 nd axis A2 (impact, vibration, etc. to the left or right in fig. 15) may be applied to the case 1 or the substrate 9. Here, in the electromagnetic relay 100 of the present embodiment, as shown in fig. 15, the upper end portion 531 of the deformed portion 53 of the 1 st contact terminal 41, which is the specific terminal 5, is located in the through hole 90, and the dimension (width) along the 2 nd axis A2 of the 1 st contact terminal 41 at the upper end portion 531 of the deformed portion 53 is substantially the same (slightly smaller) than the diameter of the through hole 90. Further, the dimension (width) of the 2 nd contact terminal 42 along the 2 nd axis A2 is substantially the same (slightly smaller) than the diameter of the through hole 90. Therefore, even if a force (impact, vibration, or the like) along the 2 nd axis A2 is applied to the housing 1 or the substrate 9, the 1 st contact terminal 41 (the upper end portion 531 of the deformed portion 53) and/or the 2 nd contact terminal 42 immediately contacts the wall surface of the through hole 90. In the electromagnetic relay 100 according to the present embodiment, for example, even if the housing 1 rotates counterclockwise in fig. 15 about the 3 rd axis A3 with the leg 16 on the left side as a fulcrum, the 2 nd coil terminal 44 contacts the wall surface of the through hole 90 by only a slight angle. Therefore, in the electromagnetic relay 100 of the present embodiment, similarly to the electromagnetic relay 200 of the comparative example, rotation about the 3 rd axis A3 is difficult to occur, and tilting of the housing 1 with respect to the substrate 9 in this direction is difficult to occur.

In the electromagnetic relay 100 according to the present embodiment, as in the electromagnetic relay 200 of the comparative example, a force (impact, vibration, or the like to the left or right in fig. 16) along the 3 rd axis A3 may be applied to the case 1 or the substrate 9 in a state before the terminals 41, 42, 43, and 44 are soldered to the substrate 9. In the electromagnetic relay 100 of the present embodiment, as shown in fig. 16, the lower end portion 532 of the deformed portion 53 of the 1 st contact terminal 41 as the specific terminal 5 is located in the through hole 90, and the dimension (width) of the 1 st contact terminal 41 along the 3 rd axis A3 at the lower end portion 532 of the deformed portion 53 is substantially the same (slightly smaller) than the diameter of the through hole 90. Therefore, even if a force (impact, vibration, or the like) along the 3 rd axis A3 is applied to the housing 1 or the substrate 9, the 1 st contact terminal 41 (the lower end portion 532 of the deformed portion 53) is immediately in contact with the wall surface of the through hole 90 (see the two-dot chain line of fig. 16). Therefore, in the electromagnetic relay 100 of the present embodiment, it is also difficult to generate rotation about the 2 nd axis A2 as the rotation axis, and it is also difficult to generate tilting of the housing 1 with respect to the substrate 9 in this direction.

As described above, the electromagnetic relay 100 according to the present embodiment can suppress not only the inclination about the 3 rd axis A3 but also the inclination about the 2 nd axis A2. In summary, the electromagnetic relay 100 of the present embodiment has the following advantages: in a state before the connection of the terminals (the contact terminals 41, the coil terminals 40), the inclination with respect to the counterpart member (the substrate 9) (the inclination of the housing 1) can be suppressed.

In addition, in the electromagnetic relay 100 of the present embodiment, the 1 st contact terminal 41 is the specific terminal 5. In general, the 1 st contact terminal 41 has a larger current amount than the coil terminal 40, and thus has a wider width than the coil terminal 40. In the electromagnetic relay 100 according to the present embodiment, the 1 st contact terminal 41 having a wider width than the coil terminal 40 is provided with the deformed portion 53, whereby the inclination with respect to the counterpart member (the inclination of the housing 1) can be further suppressed.

In addition, in the electromagnetic relay 100 of the present embodiment, the 1 st contact terminal 41 and the 1 st coil terminal 43 are located between the 2 nd contact terminal 42 and the 2 nd coil terminal 44. That is, in the electromagnetic relay 100, the 1 st contact terminal 41 as the specific terminal 5 is located between the 2 nd contact terminal 42 and the 2 nd coil terminal 44 as the normal terminals 6, respectively. This can suppress tilting of the housing 1 about the 3 rd axis A3 as a rotation axis, compared with the case where the outermost terminals 42, 44 of the 4 terminals 41, 42, 43, 44 are the specific terminals 5. Specifically, for example, when the 2 nd contact terminal 42 is the specific terminal 5 and the upper end portion 531 of the deformed portion 53 is located above the upper surface 91 of the substrate 9, a relatively large gap may be generated between the 2 nd axis A2 and the 2 nd contact terminal 42 (specific terminal 5) on the upper opening surface of the through hole 90 of the substrate 9. Therefore, there is a possibility that the housing 1 may be tilted about the 3 rd axis A3 as the rotation axis. On the other hand, if the outermost terminals 42, 44 among the 4 terminals 41, 42, 43, 44 are the normal terminals 6, the gap G1 between the 2 nd contact terminal 42 (normal terminal 6) and the upper opening surface of the through hole 90 of the substrate 9 on the 2 nd axis A2 is small (see fig. 15). This can suppress tilting of the housing 1 about the 3 rd axis A3 as a rotation axis.

(3) Modification examples

The above-described embodiment is merely one of various embodiments of the present disclosure. The above-described embodiments can be variously modified according to the design and the like as long as the objects of the present disclosure can be achieved. The following describes modification examples of the embodiment. Hereinafter, the above embodiment is also sometimes referred to as a "basic example". The basic example described above and the modified examples described below can be appropriately combined and applied.

(3.1) modification 1

Referring to fig. 19, an electromagnetic relay 100 of modification 1 is described. In the electromagnetic relay 100 of modification 1, the same configuration as the electromagnetic relay 100 of the basic example may be omitted as appropriate.

In the electromagnetic relay 100 of modification 1, as shown in fig. 19, the deformed portion 53 of the specific terminal 5 has the protrusion 55.

The protrusion 55 is in a protruding shape, and in the plane P1 orthogonal to the 1 st axis A1, the protruding shape is a shape in which the cross section of the protrusion 55 is located at a position different from the position of the cross section of the upper end portion 51 of the specific terminal 5. In the projection 55 of the present modification, the position of the cross section of the deformed portion 53 in the plane P1 orthogonal to the 1 st axis A1 changes from top to bottom. As shown in fig. 19, the position of the cross section of the deformed portion 53 in the plane P1 orthogonal to the 1 st axis A1 changes from top to bottom while maintaining the cross-sectional shape of the protrusion 55 of the present modification.

In the electromagnetic relay 100 of modification 1, the position of the cross section of the protrusion 55 gradually changes (moves) from top to bottom along the 3 rd axis A3 (along the axis of the thickness of the specific terminal 5). Here, in particular, the position of the cross section of the protrusion 55 gradually moves forward from above and then gradually moves backward. In the plane P1 orthogonal to the 1 st axis A1, the position of the cross section of the upper end portion 531 and the position of the cross section of the lower end portion 532 of the deformed portion 53 are at the same position.

In the electromagnetic relay 100 of modification 1, the deformation portion 53 has the protrusion 55. Here, the protrusion 55 is sometimes indicated as a curved portion 56. The bent shape portion 56 is formed by bending a part of the normal terminal 6. As shown in fig. 19, in the electromagnetic relay 100 of modification 1, the curved portion 56 has a substantially C-shape when viewed from the left. However, the curved portion 56 is not limited to this, and may have a bracket shape or another shape such as a smaller number shape when viewed from the left.

The specific terminal 5 having the protrusion 55 of modification 1 can suppress tilting of the housing 1 about the 2 nd axis A2 as the rotation axis. That is, the specific terminal 5 having the curved portion 56 can suppress tilting of the housing 1 about the 2 nd axis A2 as the rotation axis.

(3.2) modification 2

Referring to fig. 20, an electromagnetic relay 100 of modification 2 is described. In the electromagnetic relay 100 of modification 2, the same configuration as the electromagnetic relay 100 of the basic example may be omitted as appropriate.

In the electromagnetic relay 100 of modification 2, as shown in fig. 20, the deformed portion 53 of the specific terminal 5 has the protrusion 57.

In the electromagnetic relay 100 of modification 2, the deformation portion 53 has a protrusion 57 whose central portion on the 1 st axis A1 protrudes along the 3 rd axis A3. The deformed portion 53 has a different shape in cross section in a plane P1 orthogonal to the 1 st axis A1 at the upper end position and the center position. Specifically, the thickness (the dimension along the 3 rd axis A3) of the protrusion 57 at the center is greater than the thickness of the upper end of the deformed portion 53.

The deformed portion 53 of the modification 2 can be formed by attaching the protrusion 57 to the normal terminal 6, for example. The material of the protrusion 57 is not particularly limited, and may be an insulator or a non-insulator (conductor or semiconductor).

Even in the case of the specific terminal 5 having the deformed portion 53 of the modification 2, the inclination of the housing 1 about the 2 nd axis A2 as the rotation axis can be suppressed.

(3.3) modification 3

An electromagnetic relay 100 according to modification 3 will be described with reference to fig. 21 and 22. In the electromagnetic relay 100 of modification 3, the same configuration as the electromagnetic relay 100 of the basic example may be omitted as appropriate.

The electromagnetic relay 100 according to modification 3 is different from the electromagnetic relay 100 according to the basic example in that the modified portion 53 of the 1 st contact terminal 41 (fixed contact terminal 45) which is the specific terminal 5 is located inside the housing 1.

That is, as shown in fig. 21, the upper end portion 531 and the lower end portion 532 of the deformed portion 53 are located inside the housing 1. The deformed portion 53 has a twisted portion 54 having a twist angle of 90 degrees. Therefore, in the 1 st contact terminal 41, the longitudinal axis of the cross-sectional shape is along the 3 rd axis A3 in the whole of the portion protruding from the housing 1.

Even in the case of the specific terminal 5 having the deformed portion 53 of the modification example 3, the inclination of the housing 1 about the 2 nd axis A2 as the rotation axis can be suppressed.

In addition, in the electromagnetic relay 100 of modification 3, in the 1 st contact terminal 41, the longitudinal axis of the cross-sectional shape is along the 3 rd axis A3 in the whole of the portion protruding from the housing 1. Accordingly, as the through hole into which the 1 st contact terminal 41 is inserted, as shown in fig. 22, a through hole 99 having a long hole shape along the longitudinal axis of the 3 rd shaft A3 can be employed.

(3.4) other modifications

In one modification, as shown in fig. 23 and 24, at least part of the deformed portion 53 may be located below the lower surface 92 of the substrate 9, or the entire deformed portion 53 (the upper end portion 531 of the deformed portion 53) may be located below the lower surface 92 of the substrate 9. In this case, for example, even if the specific terminal 5 moves upward due to the inclination of the housing 1 about the 2 nd axis A2 as the rotation axis, the deformation portion 53 can contact the edge portion of the lower opening surface of the through hole 90 of the substrate 9, and the specific terminal 5 can be prevented from coming off the through hole 90.

In a modification, the 1 st coil terminal 43 may be the specific terminal 5.

In a modification, the outermost terminal (the 2 nd contact terminal 42 or the 2 nd coil terminal 44) may be the specific terminal 5.

In the modification, the electromagnetic relay 100 is not limited to the configuration having only one specific terminal 5, and may have two or more specific terminals 5. All terminals of the electromagnetic relay 100 may be the specific terminal 5.

In a modification, the number of terminals included in the electromagnetic relay 100 is not limited to 4. For example, the electromagnetic relay 100 may be provided with two or more contact devices 2 each including a movable contact 271 and a fixed contact 231, and in this case, the electromagnetic relay 100 may be provided with two or more movable contact terminals 46 and/or fixed contact terminals 45.

In a modification, the plurality of terminals included in the electromagnetic relay 100 may include terminals not located on the straight line L1 along the 2 nd axis A2. For example, the 1 st contact terminal 41 and the 2 nd contact terminal 42 may be disposed at a left front portion of the lower surface of the housing 1, and the 1 st coil terminal 43 and the 2 nd coil terminal 44 may be disposed at a right rear portion of the lower surface of the housing 1, so that the plurality of terminals may be disposed diagonally.

In a modification, the specific terminal 5 may have a cross-sectional shape other than a rectangle as long as it has a longitudinal axis, and for example, may have a rectangular shape with four corners chamfered, may have a square shape other than a rectangle, may have a triangular shape, a pentagonal shape, or other polygonal shape such as an ellipse.

In a modification, the 1 st contact terminal 41 and/or the 2 nd contact terminal 42 may not have a tapered shape, or the 1 st coil terminal 43 and/or the 2 nd coil terminal 44 may not have a chamfered shape.

In the modification, the counterpart member to which the electromagnetic relay 100 is connected is not limited to the substrate 9, and may be a terminal block or the like, for example.

In a modification, the contact device 2 is not limited to a structure (so-called a-contact) in which the movable contact 271 is in contact with the fixed contact 231 when the coil 33 is energized, but may be a structure (so-called b-contact) in which the movable contact 271 is in contact with the fixed contact 231 when the coil 33 is not energized. The contact device 2 may have a so-called c-contact structure.

In one modification, the twisting direction of the twisted portion 54 of the deformed portion 53 may be a direction in which the longitudinal axis of the cross-sectional shape of the deformed portion 53 rotates clockwise from top to bottom when viewed from below.

In one modification, the deformed portion 53 is not limited to a structure having one continuous twisted portion 54, and may have two or more twisted portions 54 separated vertically. In the case of having two or more twisted portions 54, there may be twisted portions 54 having a twisting direction opposite to that of the other twisted portions 54.

In a modification, the specific terminal may have a plurality of deformed portions 53, and the plurality of deformed portions 53 may have different shapes (for example, a twisted portion 54 and a protrusion 55).

In a modification, the position of the upper end portion 51 may be different from the position of the lower end portion 52 when the specific terminal 5 is projected on a virtual plane orthogonal to the 1 st axis A1.

(4) Morphology of the product

The following embodiments are explicitly disclosed in the present specification according to the embodiments and modifications described above.

The electromagnetic relay 100 of the 1 st aspect includes: a fixed contact 231; a movable contact 271 that moves between a contact position where it contacts the fixed contact 231 and a separation position where it separates from the fixed contact; an electromagnetic drive unit 3 having a coil 33 and moving the movable contact 271 relative to the fixed contact 231 in response to energization to the coil 33; a housing 1 that houses the fixed contact 231, the movable contact 271, and the electromagnetic drive section 3; a1 st contact terminal 41 connected to the fixed contact 231 or the movable contact 271 and protruding downward from the housing 1; and a1 st coil terminal 43 connected to the 1 st end of the coil 33, protruding downward from the housing 1, the 1 st contact terminal 41 or the 1 st coil terminal 43 being a specific terminal 5, the specific terminal 5 having a deformed portion 53 between an upper end portion 51 of the specific terminal 5 and a lower end portion 52 of the specific terminal 5.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member (for example, the substrate 9) can be suppressed in a state before the terminals (the contact terminal 41, the coil terminal 40) are connected to the counterpart member.

In the electromagnetic relay 100 according to the 2 nd aspect, the deformed portion 53 has the torsion-shaped portion 54.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be suppressed in the state before the terminal is connected to the counterpart member.

In the electromagnetic relay 100 according to the 3 rd aspect, each of the upper end portion 51 of the specific terminal 5 and the lower end portion 52 of the specific terminal 5 has a rectangular cross section perpendicular to the direction in which the specific terminal 5 extends, and when viewed from above, the longitudinal axis C1 of the cross section of the upper end portion 51 of the specific terminal 5 intersects with the longitudinal axis C2 of the cross section of the lower end portion 52 of the specific terminal 5.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be suppressed in the state before the terminal is connected to the counterpart member.

In the electromagnetic relay 100 according to the 4 th aspect, the longitudinal axis C1 of the cross section of the upper end portion 51 of the specific terminal 5 is orthogonal to the longitudinal axis C2 of the cross section of the lower end portion 52 of the specific terminal 5 when viewed from above.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be suppressed in the state before the terminal is connected to the counterpart member.

In the electromagnetic relay 100 according to the 5 th aspect, the deformation portion 53 has the protrusion 55 (57).

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be further suppressed in the state before the terminal is connected to the counterpart member.

In the electromagnetic relay 100 according to the 6 th aspect, the protrusion 55 includes a curved portion.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be suppressed in the state before the terminal is connected to the counterpart member.

In the electromagnetic relay 100 according to the 7 th aspect, the deformation portion 53 is located inside the housing 1.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be suppressed in the state before the terminal is connected to the counterpart member.

In the electromagnetic relay 100 according to the 8 th aspect, the deformed portion 53 is located outside the housing 1.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be suppressed in the state before the terminal is connected to the counterpart member.

In the electromagnetic relay 100 according to the 9 th aspect, the deformation portion 53 is located below the lowermost end of the housing 1.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be suppressed in the state before the terminal is connected to the counterpart member.

The electromagnetic relay 100 according to the 10 th aspect further includes a 2 nd contact terminal 42 protruding downward from the housing 1, the 1 st contact terminal 41 being connected to one of the fixed contact 231 and the movable contact 271, the 2 nd contact terminal 42 being connected to the other of the fixed contact 231 and the movable contact 271, the 2 nd contact terminal 42 having no deformation portion 53 between an upper end portion 421 of the 2 nd contact terminal 42 and a lower end portion 422 of the 2 nd contact terminal 42.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be suppressed in the state before the terminal is connected to the counterpart member. In addition, the step of processing the 2 nd contact terminal 42 to have the deformed portion 53 of the 2 nd contact terminal 42 is unnecessary as compared with the case where the 2 nd contact terminal 42 is the specific terminal 5.

The electromagnetic relay 100 according to the 11 th aspect further includes a 2 nd coil terminal 44, the 2 nd coil terminal 44 being connected to the 2 nd end of the coil 33, the 2 nd coil terminal 44 protruding downward from the housing 1, the 2 nd coil terminal 44 having no deformation portion 53 between an upper end portion 441 of the 2 nd coil terminal 44 and a lower end portion 442 of the 2 nd coil terminal 44, the 1 st contact terminal 41 and the 1 st coil terminal 43 being located between the 2 nd contact terminal 42 and the 2 nd coil terminal 44.

According to this aspect, the inclination of the housing 1 with respect to the counterpart member can be suppressed in the state before the terminal is connected to the counterpart member. In addition, the step of processing the 2 nd coil terminal 44 to form the 2 nd coil terminal 44 having the deformed portion 53 is unnecessary as compared with the case where the 2 nd coil terminal 44 is the specific terminal 5.

In the electromagnetic relay 100 according to the 12 th aspect, the 1 st contact terminal 41, the 2 nd contact terminal 42, the 1 st coil terminal 43, and the 2 nd coil terminal 44 are arranged along the 1 st axis (straight line L1) at the lower surface of the housing 1 when viewed from above.

According to this configuration, even in the case 1 in which inclination is liable to occur with the axis line of the arrangement of the 1 st contact terminal 41, the 2 nd contact terminal 42, the 1 st coil terminal 43, and the 2 nd coil terminal 44 as the rotation axis, the inclination of the case 1 with respect to the counterpart member can be suppressed in the state before the terminals are connected to the counterpart member.

In the electromagnetic relay 100 according to the 13 th aspect, the lower surface of the housing 1 is rectangular, and the 1 st contact terminal 41, the 2 nd contact terminal 42, the 1 st coil terminal 43, and the 2 nd coil terminal 44 are arranged along the longitudinal axis of the lower surface of the housing 1, and are arranged at a position closer to one of the two long sides of the lower surface of the housing 1 than to the other long side.

According to this configuration, even in the case 1 in which inclination is liable to occur with the axis line of the arrangement of the 1 st contact terminal 41, the 2 nd contact terminal 42, the 1 st coil terminal 43, and the 2 nd coil terminal 44 as the rotation axis, the inclination of the case 1 with respect to the counterpart member can be suppressed in the state before the terminals are connected to the counterpart member.

In the electromagnetic relay 100 according to the 14 th aspect, a cross section of the upper end portion 411 of the 1 st contact terminal 41 perpendicular to the direction in which the 1 st contact terminal 41 extends, a cross section of the upper end portion 421 of the 2 nd contact terminal 42 perpendicular to the direction in which the 2 nd contact terminal 42 extends, a cross section of the upper end portion 431 of the 1 st coil terminal 43 perpendicular to the direction in which the 1 st coil terminal 43 extends, and a cross section of the upper end portion 441 of the 2 nd coil terminal 44 perpendicular to the direction in which the 2 nd coil terminal 44 extends are rectangular shapes, and when viewed from above, a longitudinal axis B11 of the cross section of the upper end portion 411 of the 1 st contact terminal 41, a longitudinal axis B31 of the cross section of the upper end portion of the 2 nd contact terminal 42, and a longitudinal axis B41 of the cross section of the upper end portion 431 of the 1 st coil terminal 43 are each along the axis A2.

According to this configuration, even in the case 1 in which the inclination is liable to occur about the axis A2 in which the 1 st contact terminal 41, the 2 nd contact terminal 42, the 1 st coil terminal 43, and the 2 nd coil terminal 44 are arranged as the rotation axis, the inclination of the case 1 with respect to the counterpart member can be suppressed in the state before the terminals are connected to the counterpart member.

In the electromagnetic relay 100 according to the 15 th aspect, the 1 st contact terminal 41 is the specific terminal 5.

According to this aspect, by providing the 1 st contact terminal 41 having a larger width than the coil terminal 40 with the deformed portion 53, tilting of the housing 1 with respect to the counterpart member can be suppressed in a state before the terminal is connected to the counterpart member.

Claims (15)

1. An electromagnetic relay, wherein,

the electromagnetic relay includes:

a fixed contact;

a movable contact that moves between a contact position where the movable contact contacts the fixed contact and a separation position where the movable contact separates from the fixed contact;

an electromagnetic drive unit having a coil and moving the movable contact with respect to the fixed contact in response to energization to the coil;

a housing that houses the fixed contact, the movable contact, and the electromagnetic drive section;

a 1 st contact terminal connected to the fixed contact or the movable contact and protruding downward from the housing; and

A 1 st coil terminal connected to the 1 st end of the coil and protruding downward from the housing,

the 1 st contact terminal or the 1 st coil terminal is a specific terminal,

the specific terminal has a deformed portion between an upper end portion of the specific terminal and a lower end portion of the specific terminal.

2. The electromagnetic relay of claim 1 wherein,

the deformation portion has a torsion-shaped portion.

3. The electromagnetic relay according to claim 1 or 2, wherein,

the cross section perpendicular to the direction in which the specific terminal extends of each of the upper end portion of the specific terminal and the lower end portion of the specific terminal is rectangular,

the longitudinal axis of the cross section of the upper end portion of the specific terminal intersects with the longitudinal axis of the cross section of the lower end portion of the specific terminal when viewed from above.

4. The electromagnetic relay of claim 3 wherein,

the longitudinal axis of the cross section of the upper end portion of the specific terminal is orthogonal to the longitudinal axis of the cross section of the lower end portion of the specific terminal when viewed from above.

5. The electromagnetic relay of claim 1 wherein,

the deformation portion has a protrusion.

6. The electromagnetic relay of claim 5 wherein,

the protrusion includes a curved shape portion.

7. The electromagnetic relay according to any one of claims 1-6, wherein,

the deformation portion is located inside the housing.

8. The electromagnetic relay according to any one of claims 1-6, wherein,

the deformation is located outside the housing.

9. The electromagnetic relay of claim 8 wherein,

the deformation portion is located below the lowermost end of the housing.

10. The electromagnetic relay according to any one of claims 1-9, wherein,

the electromagnetic relay further includes a 2 nd contact terminal protruding downward from the housing,

the 1 st contact terminal is connected to one of the fixed contact and the movable contact,

the 2 nd contact terminal is connected to the other of the fixed contact and the movable contact,

the 2 nd contact terminal has no deformation portion between an upper end portion of the 2 nd contact terminal and a lower end portion of the 2 nd contact terminal.

11. The electromagnetic relay of claim 10 wherein,

The electromagnetic relay further includes a 2 nd coil terminal connected to the 2 nd end of the coil, protruding downward from the housing,

the 2 nd coil terminal does not have the deformation portion between an upper end portion of the 2 nd coil terminal and a lower end portion of the 2 nd coil terminal,

the 1 st contact terminal and the 1 st coil terminal are located between the 2 nd contact terminal and the 2 nd coil terminal.

12. The electromagnetic relay of claim 11 wherein,

at the lower surface of the housing, the 1 st contact terminal, the 2 nd contact terminal, the 1 st coil terminal, and the 2 nd coil terminal are arranged in an arrangement along the 1 st axis when viewed from above.

13. The electromagnetic relay of claim 12 wherein,

the lower surface of the housing is rectangular in shape,

the 1 st contact terminal, the 2 nd contact terminal, the 1 st coil terminal, and the 2 nd coil terminal are arranged along a longitudinal axis of the lower surface of the housing, and are arranged at a position closer to one of two long sides of the lower surface of the housing than to the other long side.

14. The electromagnetic relay of claim 12 or 13 wherein,

a cross section of an upper end portion of the 1 st contact terminal perpendicular to a direction in which the 1 st contact terminal extends, a cross section of the upper end portion of the 2 nd contact terminal perpendicular to a direction in which the 2 nd contact terminal extends, a cross section of an upper end portion of the 1 st coil terminal perpendicular to a direction in which the 1 st coil terminal extends, and a cross section of an upper end portion of the 2 nd coil terminal perpendicular to a direction in which the 2 nd coil terminal extends are rectangular shapes, respectively,

the longitudinal axis of the cross section of the upper end portion of the 1 st contact terminal, the longitudinal axis of the cross section of the upper end portion of the 2 nd contact terminal, the longitudinal axis of the cross section of the upper end portion of the 1 st coil terminal, and the longitudinal axis of the cross section of the upper end portion of the 2 nd coil terminal are along the 1 st axis, respectively, when viewed from above.

15. The electromagnetic relay according to any one of claims 1-14, wherein,

the 1 st contact terminal is the specific terminal.

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