JP2018106858A - Electromagnetic relay - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an occupied space of a relay and a relay box from being enlarged as a whole.SOLUTION: A relay 20 includes a male terminal 22 and a protrusion 24 that protrude from a relay main body 21 to the other side of the uniaxial direction DR1. When the relay 20 is attached to a relay box 30, the protrusion 24 is fitted into a fitting hole 311c formed in the relay box 30. Therefore, the protrusion 24 of the relay 20 is provided with a function to prevent misconnection between the male terminal 22 and a female terminal 32. That is, it is unnecessary to arrange a guide portion for guiding the relay 20 in the outer peripheral portion of the relay 20 and the relay box 30 when the relay 20 is attached to the relay box 30. Therefore, it is possible to prevent a space occupied of the relay 20 and the relay box 30 from being enlarged as a whole.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electromagnetic relay.

  For example, when mounting a relay such as an in-vehicle plug-in relay (that is, an electromagnetic relay) to the mating connector of the relay box, the male terminal of the relay and the female terminal of the mating connector are aligned with each other, and the male It is necessary to assemble the terminal and the female terminal so as not to be deformed. In addition, it is necessary to prevent erroneous connection between the male terminal and the female terminal.

  Therefore, a socket as a relay box to which the relay described in Patent Document 1 is mounted has a rising piece that rises from a base facing the relay main body of the mounted relay. The rising piece is disposed along the outer shape of the relay body and guides the relay when the relay is mounted.

  Moreover, the relay of patent document 2 is provided with the skirt part extended from the main body case of the relay. On the other hand, although the relay box to which this relay is mounted is not shown in Patent Document 2, generally, the relay box is provided with a connector that fits the skirt portion of the relay. The skirt has a shape that matches the shape of the connector, and also functions as a connector guide. In other words, the skirt portion extends along the connector to guide the male terminal when the male terminal is fitted into the female terminal.

Japanese Utility Model Publication No. 2-126389 JP-A-6-60785

  In any one of Patent Documents 1 and 2, a guide portion having a guide shape for guiding the relay when the relay is mounted on one or both of the relay and the relay box which is a counterpart electric device to which the relay is mounted. It is necessary to provide it. And the guide part is arrange | positioned in the outer peripheral part of one or both of a relay and the other party electric equipment. Therefore, such a guide part causes the physique of the relay and the counterpart electric device to be enlarged as a whole. That is, providing the guide portion disposed on the outer peripheral portion leads to enlargement of the occupied space of the relay and the counterpart electric device as a whole.

  In view of the above points, an object of the present invention is to provide an electromagnetic relay capable of suppressing an increase in the occupied space of the electromagnetic relay and the counterpart electric device as a whole.

In order to achieve the above object, the electromagnetic relay according to claim 1 is:
An electromagnetic relay that is attached from one side in the uniaxial direction (DR1) to the counterpart electric device (30),
A main body (21);
A male terminal (22) protruding from the main body part to the other side opposite to one side in the uniaxial direction and electrically connected to the female terminal (32) of the counterpart electric device,
It has projections (24, 24a, 24b) that protrude from the main body portion to the other side in the uniaxial direction and are fitted into fitting holes (311c) formed in the counterpart electric device.

The electromagnetic relay according to claim 8 is:
An electromagnetic relay to be attached to the counterpart electric device (20),
A female terminal (32) electrically connected to the male terminal by fitting the male terminal (22) of the counterpart electric device from one side in the uniaxial direction (DR1);
A housing (31) for accommodating the female terminal,
The housing is characterized in that a fitting hole (311c) into which the protrusion (24) of the counterpart electric device is fitted from one side in the uniaxial direction is formed.

  According to the electromagnetic relay described in claim 1 or claim 8 described above, the protrusion can have a function of preventing erroneous connection between the male terminal and the female terminal. Therefore, when the electromagnetic relay is mounted on the counterpart electric device, the guide portion that guides the electromagnetic relay does not need to be disposed on the outer peripheral portion of the electromagnetic relay and the counterpart electric device in order to prevent the erroneous connection. . Therefore, it is possible to suppress an increase in the occupied space of the electromagnetic relay and the counterpart electric device as a whole.

  In addition, each code | symbol in the bracket | parenthesis described in a claim and this column is an example which shows a corresponding relationship with the specific content as described in embodiment mentioned later.

It is the perspective view which showed typically the relay of 1st Embodiment. It is the perspective view which showed typically the relay box with which the relay of FIG. 1 is mounted | worn. FIG. 3 is a cross-sectional view schematically showing a cross section of the relay and the relay box in a state in which the relay of FIG. 1 is mounted on the relay box of FIG. 2, and is a cross-sectional view cut along a III-III cross section of FIG. It is the top view which looked at the relay simple substance of FIG. 1 from the other side of the uniaxial direction, Comprising: It is the IV arrow line view in FIG. It is sectional drawing which showed typically the cross section of the relay and relay box in the state with which the relay of 2nd Embodiment was mounted | worn in the relay box, Comprising: It is a figure equivalent to FIG. 3 of 1st Embodiment. It is the top view which looked at the relay simple substance of 3rd Embodiment from the other side of the uniaxial direction, Comprising: It is a figure equivalent to FIG. 4 of 1st Embodiment. In other embodiment, it is the 1st figure showing an example of the axial orthogonal cross section of the protrusion which made the uniaxial direction the normal line direction. In other embodiment, it is the 2nd figure showing an example of the axial orthogonal cross section of the protrusion which made the uniaxial direction the normal line direction.

  Hereinafter, each embodiment will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

(First embodiment)
FIG. 1 is a perspective view of a relay 20 of the present embodiment, and FIG. 2 is a perspective view showing a relay box 30 as a relay mounting unit to which the relay 20 is mounted. 3 is a cross-sectional view showing a cross section of the relay 20 and the relay box 30 in a state in which the relay 20 is mounted on the relay box 30, and is a cross-sectional view cut along a III-III cross section of FIG. .

  As shown in FIGS. 1 to 3, the relay 20 is mounted on the relay box 30 from one side in the uniaxial direction DR <b> 1. The relay 20 and the relay box 30 constitute the electronic device 10 by being combined with each other.

  The relay 20 is an electromagnetic relay that opens and closes an electric circuit by bringing a pair of electrical contacts into and out of contact. The relay 20 includes a relay main body 21 that is a main body of the relay 20, a plurality of male terminals 22, and a plurality of protrusions 24. That is, in the present embodiment, the male electric device 20 having the male terminal 22 and the protrusion 24 is the relay 20. For confirmation, FIG. 1 shows the single relay 20 before being mounted on the relay box 30, and FIG. 2 shows the single relay box 30 before the relay 20 is mounted.

  The relay body 21 has a relay body case 211 and an electric circuit including electrical contacts. The relay main body case 211 is made of, for example, resin, and an electric circuit is accommodated in the relay main body case 211.

  The relay main body 21 is provided on one side in the uniaxial direction DR1 with respect to each of the plurality of male terminals 22 and the plurality of protrusions 24. The male terminal 22 has a plate shape having a plate thickness in a direction orthogonal to the uniaxial direction DR1, for example. And the male terminal 22 is comprised from metal plate members, such as a copper alloy. Note that the above two directions being orthogonal are not limited to mathematically intersecting at 90 degrees, but include an aspect that can be regarded as orthogonal within the scope of technical common sense.

  The longitudinal direction of the male terminal 22 and the longitudinal direction of the protrusion 24 coincide with the uniaxial direction DR1. That is, each of the male terminal 22 and the protrusion 24 protrudes along the uniaxial direction DR1 from the relay body 21 to the other side opposite to the one side in the uniaxial direction DR1.

  Specifically, the relay body 21 has a body facing surface 211 a that faces the relay box 30 in the uniaxial direction DR1. The main body facing surface 211 a is a part of the relay main body case 211. The male terminal 22 and the protrusion 24 protrude from the main body facing surface 211a to the other side in the uniaxial direction DR1.

  The relay box 30 is a counterpart electric device as a counterpart on which the relay 20 is mounted.

  The relay box 30 includes a box case 31 and a plurality of female terminals 32. That is, in the present embodiment, the female electric device 30 having the female terminal 32 is the relay box 30.

  The plurality of female terminals 32 are electrically connected to the plurality of male terminals 22 included in the relay 20. The female terminal 32 is configured by bending a metal plate member such as a copper alloy. As the female terminal 32, various terminal shapes such as, for example, a Faston (registered trademark) type terminal or a giboshi terminal can be adopted. Note that the same number of male terminals 22 and female terminals 32 are provided. In this embodiment, eight male terminals 22 and eight female terminals 32 are provided.

  The box case 31 is provided as a housing that constitutes the outer shell of the relay box 30. The box case 31 is made of resin, for example. The box case 31 accommodates a plurality of female terminals 32 inside the box case 31. The box case 31 holds a plurality of female terminals 32, respectively. That is, the box case 31 includes a terminal holding structure (not shown) for holding each female terminal 32 inside the box case 31.

  In the relay mounting state in which the relay 20 is mounted on the relay box 30, the relay main body 21 is disposed on one side in the uniaxial direction DR 1 with respect to the relay box 30.

  The box case 31 includes a relay-side case wall 311 that constitutes one side of the box case 31 in the uniaxial direction DR1. The relay side case wall 311 has a box case facing surface 311 a facing the main body facing surface 211 a of the relay 20 as one surface of the relay side case wall 311.

  In the relay-side case wall 311, terminal insertion holes 311 b through which the male terminals 22 of the relay 20 are inserted are formed for each arrangement location of the female terminals 32. When the male terminal 22 is fitted into the female terminal 32, the male terminal 22 is fitted into the female terminal 32 of the relay box 30 from one side in the uniaxial direction DR1 through the terminal insertion hole 311b. The male terminal 22 of the relay 20 is electrically connected to the female terminal 32 by being fitted into the female terminal 32 as described above. That is, the uniaxial direction DR1 is a terminal insertion direction in which the male terminal 22 is fitted into the female terminal 32.

  A plurality of fitting holes 311 c are formed in the relay side case wall 311. The fitting hole 311 c is provided as a through hole penetrating into the box case 31.

  When the relay 20 is mounted on the relay box 30, the protrusion 24 of the relay 20 is fitted into the fitting hole 311c from one side in the uniaxial direction DR1. Therefore, the fitting hole 311c of the relay box 30 is disposed so as to be coaxial with the protrusion 24 in the uniaxial direction DR1 when the relay is mounted. In short, the plurality of fitting holes 311c are arranged corresponding to the plurality of protrusions 24, respectively.

  The same number of fitting holes 311c and protrusions 24 are provided, and two are provided in this embodiment. Each of the fitting hole 311c and the protrusion 24 has, for example, a circular cross-sectional shape in an axial orthogonal cross section in which the uniaxial direction DR1 is a normal direction.

  As shown in FIGS. 1 and 3, each of the plurality of protrusions 24 of the relay 20 has a protrusion fitting portion 241 and a protrusion tip portion 242. The protrusion 24 is made of, for example, resin, and is integrally formed with a wall portion constituting the main body facing surface 211a of the relay main body case 211.

  The protrusion fitting portion 241 is connected to the relay body case 211 on one side in the uniaxial direction DR1. Moreover, the protrusion fitting part 241 has comprised the column shape which has the center axis line of uniaxial direction DR1. In the relay mounting state, the protrusion fitting portion 241 of the protrusion 24 is fitted into the fitting hole 311 c of the relay box 30.

  The protrusion tip portion 242 of the protrusion 24 is disposed on the other side in the uniaxial direction DR1 with respect to the protrusion fitting portion 241, and extends from the protrusion fitting portion 241. One end of the protrusion tip 242 in the uniaxial direction DR <b> 1 has the same diameter as the protrusion fitting part 241. And the protrusion front-end | tip part 242 is formed in the taper shape diameter-reduced toward the other side of uniaxial direction DR1.

  Further, the other end (that is, the tip) of the projection tip 242 in the uniaxial direction DR <b> 1 is a tip 242 a of the projection 24. That is, the protrusion tip 242 includes the tip 242 a of the protrusion 24.

  Further, as shown in FIG. 4, the plurality of protrusions 24 are respectively disposed between the plurality of male terminals 22 included in the relay 20. Accordingly, the plurality of protrusions 24 are arranged within the range of the male terminal arrangement region in which the plurality of male terminals 22 are arranged on the main body facing surface 211 a of the relay main body 21. In short, the plurality of protrusions 24 are provided in an empty space generated between the plurality of male terminals 22 in the main body facing surface 211a. 4 is a plan view of the single relay 20 as viewed from the other side in the uniaxial direction DR1, and is a view taken along arrow IV in FIG.

  This also applies to the arrangement of the female terminal 32 and the fitting hole 311c in the relay box 30. That is, when viewed from the direction along the uniaxial direction DR1, the plurality of fitting holes 311c are respectively disposed between the plurality of female terminals 32 included in the relay box 30. Therefore, when the plurality of female terminals 32 are projected onto the box case facing surface 311a, the plurality of fitting holes 311c are arranged within the range of the female terminal arrangement region occupied by the projected plurality of female terminals 32. . In short, the plurality of fitting holes 311c are provided in empty spaces formed between the plurality of female terminals 32 in the box case facing surface 311a.

  As shown in FIG. 3, in this embodiment, the protrusion amount of the protrusion 24 from the main body facing surface 211 a is the same for any protrusion 24. Further, in all the protrusions 24 included in the relay 20, the tip 242 a of the protrusion 24 is located on the other side in the uniaxial direction DR 1 with respect to the tip 22 a of the male terminal 22. In short, the amount of protrusion from the main body facing surface 211 a is that the protrusion 24 is larger than the male terminal 22.

  As shown in FIG. 4, the plurality of protrusions 24 and the plurality of male terminals 22 as a whole are arranged symmetrically with respect to the center of gravity P1 of the main body facing surface 211a when viewed from the other side of the uniaxial direction DR1. It has become. Therefore, even if the relay 20 is rotated 180 degrees around the axis line in the uniaxial direction DR1 passing through the gravity center position P1, the relay 20 can be mounted on the relay box 30. In short, the plurality of protrusions 24 and the plurality of male terminals 22 have a two-fold rotationally symmetric shape as a whole when viewed from the other side of the uniaxial direction DR1.

  As described above, according to the present embodiment, as shown in FIGS. 1 to 3, the relay 20 includes the male terminal 22 and the protrusion 24 that protrude from the relay main body 21 to the other side in the uniaxial direction DR1. Yes. When the relay 20 is mounted on the relay box 30, the protrusion 24 is inserted into the fitting hole 311 c formed in the relay box 30. Accordingly, the protrusion 24 of the relay 20 can be provided with a function of preventing erroneous connection between the male terminal 22 and the female terminal 32. That is, when the relay 20 is mounted on the relay box 30, a guide portion that guides the relay 20 is arranged on the outer peripheral portion of the relay 20 and the relay box 30 in order to prevent erroneous connection between the male terminal 22 and the female terminal 32. There is no need to do. Therefore, it is possible to suppress an increase in the occupied space of the relay 20 and the relay box 30 as a whole.

  Further, since the projections 24 need only have a simple shape such as a columnar shape, the structure of each of the relay 20 and the relay box 30 is prevented from being complicated due to the function of preventing the erroneous connection between the male terminal 22 and the female terminal 32. It is possible. And suppression of such complication also leads to the cost reduction of the relay 20 and the relay box 30 by extension.

  Further, according to the present embodiment, as shown in FIGS. 3 and 4, the plurality of protrusions 24 are respectively disposed between the plurality of male terminals 22 included in the relay 20. Therefore, it is possible to utilize the empty space generated between the plurality of male terminals 22 on the main body facing surface 211 a for providing the protrusions 24.

  If attention is paid to the female terminal 32 side, the plurality of fitting holes 311 c formed in the box case 31 are respectively disposed between the plurality of female terminals 32 of the relay box 30. Accordingly, similarly to the above, the empty space generated between the plurality of female terminals 32 on the box case facing surface 311a can be utilized for providing the fitting hole 311c.

  Further, according to the present embodiment, as shown in FIGS. 1 and 3, the tip 242a of the protrusion 24 is located on the other side in the uniaxial direction DR1 with respect to the tip 22a of the male terminal 22. Therefore, the guide function of the protrusion 24 that guides the male terminal 22 to fit into the female terminal 32 when the relay 20 is attached to the relay box 30 can be further enhanced as compared with the case where the relay 20 is not. Therefore, workability when the relay 20 is mounted is improved, and at the same time, deformation of the male terminal 22 during the work can be suppressed.

  Further, according to the present embodiment, as shown in FIGS. 1 and 3, the protrusion tip portion 242 is formed in a tapered shape having a diameter reduced toward the other side in the uniaxial direction DR1. Thereby, the protrusion 24 of the relay 20 can be smoothly inserted into the fitting hole 311 c of the relay box 30.

  Here, it is also possible to provide a guide shape such as a taper shape of the protrusion tip 242 not in the protrusion 24 but in the fitting hole 311c. However, if the guide shape is provided in the fitting hole 311c, the area occupied by the fitting hole 311c on the box case facing surface 311a is enlarged accordingly. Therefore, providing the guide shape in the fitting hole 311c causes a demerit that the physique of the relay box 30 is expanded. In the present embodiment, such a demerit is avoided by the tapered shape of the protrusion tip 242.

(Second Embodiment)
Next, a second embodiment will be described. In the present embodiment, differences from the first embodiment will be mainly described. Further, the same or equivalent parts as those of the above-described embodiment will be described by omitting or simplifying them. The same applies to the description of the embodiments described later.

  As shown in FIG. 5, in the present embodiment, the lengths of the plurality of protrusions 24 are different from each other. This embodiment is different from the first embodiment in this point. In order to make the description of the present embodiment easier to understand, among the plurality of protrusions 24, the protrusion 24 illustrated on the right side in FIG. 5 is referred to as a first protrusion 24a, and the protrusion 24 illustrated on the left side is referred to as a second protrusion 24b. Shall be called.

  The first protrusion 24a of the plurality of protrusions 24a and 24b included in the relay 20 protrudes greatly toward the other side in the uniaxial direction DR1 as compared to the second protrusion 24b of the plurality of protrusions 24a and 24b. In short, the first protrusion 24a protrudes from the second protrusion 24b to the other side in the uniaxial direction DR1.

  Therefore, when the relay 20 is mounted on the relay box 30, the first protrusion 24a is inserted into the corresponding fitting hole 311c, and then the second protrusion 24b is inserted into the corresponding fitting hole 311c. it can. Thereby, compared with the case where the protrusion amount of all the protrusions 24a and 24b is mutually equal, the operation | work which makes each protrusion 24a and 24b fit in the fitting hole 311c can be performed easily.

  Except as described above, the present embodiment is the same as the first embodiment. And in this embodiment, the effect show | played from the structure common to the above-mentioned 1st Embodiment can be acquired similarly to 1st Embodiment.

(Third embodiment)
Next, a third embodiment will be described. In the present embodiment, differences from the first embodiment will be mainly described.

  As shown in FIG. 6, in this embodiment, the shape and position of one protrusion 24 among the plurality of protrusions 24 of the relay 20 are different from those in the first embodiment.

  Specifically, of the two protrusions 24 shown in FIG. 6, one protrusion 24 shown on the right side has a quadrangular prism shape. Further, the position of the one protrusion 24 is also different from that of the first embodiment.

  Therefore, when viewed from the other side of the uniaxial direction DR1, the plurality of protrusions 24 included in the relay 20 are arranged out of the point-symmetrical arrangement with the center of gravity P1 of the main body facing surface 211a as the center. In other words, when viewed from the other side of the uniaxial direction DR1, the plurality of protrusions 24 and the plurality of male terminals 22 form a one-time rotationally symmetric shape as a whole. This allows the relay 20 to be attached to the relay box 30 with the angular position of the relay 20 around the axis in the uniaxial direction DR1 as one specific angular position with respect to the relay box 30, while the relay 20 It is possible to prevent the relay box 30 from being attached to the relay box 30.

  Since the protrusion 24 is fitted in the fitting hole 311c of the relay box 30, the fitting hole 311c into which the one protrusion 24 is fitted has an axial orthogonal cross-sectional shape corresponding to the one protrusion 24 (specifically, Is formed in a position corresponding to one of the protrusions 24.

  Except as described above, the present embodiment is the same as the first embodiment. And in this embodiment, the effect show | played from the structure common to the above-mentioned 1st Embodiment can be acquired similarly to 1st Embodiment.

  In addition, although this embodiment is a modification based on 1st Embodiment, it is also possible to combine this embodiment with the above-mentioned 2nd Embodiment.

(Other embodiments)
(1) In each of the above-described embodiments, as shown in FIG. 3, the fitting hole 311 c of the relay box 30 is provided as a through hole, but may be a concave blind hole instead of a through hole. That is, the fitting hole 311c includes a concave portion formed in a concave shape.

  (2) In each of the above-described embodiments, as shown in FIGS. 1 and 3, in all the protrusions 24 of the relay 20, the tip 242 a of the protrusion 24 is the other side in the uniaxial direction DR <b> 1 than the tip 22 a of the male terminal 22. This is an example. For example, it is also conceivable that the tip 242a of the projection 24 is located on the other side in the uniaxial direction DR1 with respect to the tip 22a of the male terminal 22 in any one of all the projections 24. Alternatively, it is also conceivable that the tip 242a of the projection 24 is located on one side in the uniaxial direction DR1 relative to the tip 22a of the male terminal 22 in all the projections 24 included in the relay 20.

  (3) In the first embodiment described above, as shown in FIGS. 1 and 4, the protrusion fitting portion 241 has a cylindrical shape and the protrusion tip portion 242 has a tapered shape, so that the protrusion 24 rotates. This is an example of the shape of the body. For example, all or some of the plurality of protrusions 24 included in the relay 20 may have a non-rotating body shape that does not correspond to the rotating body.

  In this way, even if the number of the protrusions 24 is one, it is possible to effectively prevent erroneous connection between the male terminal 22 of the relay 20 and the female terminal 32 of the relay box 30. This also applies to the second embodiment.

  For example, as the protrusion 24 having a non-rotating body shape, it is assumed that the axis orthogonal cross section of the protrusion 24 having the uniaxial direction DR1 as the normal direction is L-shaped as shown in FIG. Alternatively, it is assumed that the protrusion 24 forming the non-rotating body has a square cross section orthogonal to the axis as shown in FIG.

  Since the protrusion 24 is fitted into the fitting hole 311 c of the relay box 30, the axial orthogonal section of the fitting hole 311 c has a shape corresponding to the axial orthogonal section of the protrusion 24. For example, if the protrusion 24 has an L-shaped axis orthogonal cross section as shown in FIG. 7, the axis orthogonal cross section of the fitting hole 311c also has an L shape, and the protrusion 24 has a square axial cross section as shown in FIG. If it exists, the cross section perpendicular to the axis of the fitting hole 311c also has a square shape.

  (4) In each of the above-described embodiments, as shown in FIGS. 1 and 2, the male electric device 20 having the male terminal 22 and the protrusion 24 is a relay, the fitting hole 311 c is formed, and the female terminal 32 is provided. The female electrical device 30 is a counterpart electrical device as a counterpart on which the relay is mounted. However, this is an example, and the correspondence between them may be reversed.

  That is, the female electrical device 30 shown in FIG. 2 may be a relay, and the male electrical device 20 shown in FIG. 1 may be a counterpart electrical device. If it is such a correspondence relationship, the relay configured as the female electrical device 30 includes a box case 31 as a housing and a plurality of female terminals 32 as shown in FIGS. 2 and 3. . On the other hand, the counterpart electric device configured as the male electric device 20 includes a main body 21, a plurality of male terminals 22, and a plurality of protrusions 24, as shown in FIG.

  (5) In FIG. 1 of the first embodiment described above, the main body facing surface 211a of the relay 20 is illustrated in a plan view, but this is because FIG. 1 is a schematic diagram, and the main body facing surface 211a has irregularities. It may be formed. The box case facing surface 311a shown in FIG. 2 is similar to this, and there may be no irregularities on the box case facing surface 311a. The same applies to the second embodiment and the third embodiment.

  (6) It should be noted that the present invention is not limited to the above-described embodiment, and can be implemented with various modifications. Further, the above embodiments are not irrelevant to each other, and can be combined as appropriate unless the combination is clearly impossible. In each of the above-described embodiments, it is needless to say that elements constituting the embodiment are not necessarily indispensable except for the case where it is clearly indicated that the element is essential and the case where the element is clearly considered essential in principle. Yes.

  Further, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is clearly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to the specific number except for the case. In each of the above embodiments, when referring to the material, shape, positional relationship, etc. of the constituent elements, etc., unless otherwise specified, or in principle limited to a specific material, shape, positional relationship, etc. The material, shape, positional relationship, etc. are not limited.

20 Relay (electromagnetic relay)
21 Relay body (body)
22 Male terminal 24 Protrusion 30 Relay box (counterpart electrical equipment)
32 Female terminal 311c Mating hole DR1 Uniaxial direction

Claims (9)

An electromagnetic relay that is attached from one side in the uniaxial direction (DR1) to the counterpart electric device (30),
A main body (21);
A male terminal (22) protruding from the main body part to the other side opposite to the one side in the uniaxial direction and electrically connected to a female terminal (32) of the counterpart electric device;
Protrusions (24, 24a, 24b) that protrude from the main body portion to the other side in the uniaxial direction and are fitted into fitting holes (311c) formed in the counterpart electric device. Characteristic electromagnetic relay. A plurality of the male terminals are provided,
The electromagnetic relay according to claim 1, wherein the protrusion is disposed between the plurality of male terminals.   The electromagnetic relay according to claim 1 or 2, wherein a tip (242a) of the protrusion is located on the other side in the uniaxial direction with respect to a tip (22a) of the male terminal. A plurality of the protrusions (24a, 24b) are provided,
The first protrusion (24a) of the plurality of protrusions protrudes to the other side in the uniaxial direction from the second protrusion (24b) of the plurality of protrusions. The electromagnetic relay described in 1. The main body has a main body facing surface (211a) that faces the counterpart electrical device in the uniaxial direction,
The male terminal and the protrusion protrude from the main body facing surface to the other side in the uniaxial direction,
The projection is arranged so as to deviate from a point-symmetrical arrangement around the center of gravity (P1) of the main body facing surface when viewed from the other side in the uniaxial direction. The electromagnetic relay according to 3 or 4. The protrusion has a protrusion tip portion (242) including a tip of the protrusion,
6. The electromagnetic relay according to claim 3, wherein the tip of the protrusion is formed in a taper shape with a diameter decreasing toward the other side in the uniaxial direction.   The electromagnetic relay according to claim 1, wherein the protrusion has a non-rotating body shape that does not correspond to a rotating body. An electromagnetic relay to be attached to the counterpart electric device (20),
A female terminal (32) electrically connected to the male terminal by fitting the male terminal (22) of the counterpart electrical device from one side in the uniaxial direction (DR1);
A housing (31) for accommodating the female terminal;
The electromagnetic relay according to claim 1, wherein the housing has a fitting hole (311c) into which a protrusion (24) of the counterpart electric device is fitted from the one side in the uniaxial direction. A plurality of the female terminals are provided,
The electromagnetic relay according to claim 8, wherein the fitting hole is disposed between the plurality of female terminals.

Images