JP7134148B2 - Metal terminals and pressure switches - Google Patents

Description

The present invention relates to a metal terminal attached to the wall of a support and to a pressure switch with such a metal terminal.

2. Description of the Related Art Conventionally, metal terminals are used as connecting parts with external parts in devices such as various switches and various sensors. (For example, see Patent Document 1 or Patent Document 2.). Many of such metal terminals are attached and fixed to a wall portion constituting a support such as a case or the like so that a portion forming a connection portion protrudes from the outer wall surface. The metal terminals described in Patent Literature 1 and Patent Literature 2 are fixed to the wall portion by applying force from the protruding end side to the base of the protruding portion from the outer wall surface and deforming the base by crimping.

Japanese Utility Model Publication No. 08-001560 Japanese Utility Model Laid-Open No. 02-082822

Here, in the above-described crimping deformation, it is often necessary to dispose a crimping receiving member that receives the force applied during crimping deformation on the inner wall surface side of the wall portion of the support. On the other hand, it may be difficult to secure a sufficient space for arranging such crimping receiving members depending on the arrangement of parts inside the device.

Accordingly, the present invention focuses on the above-described problems and provides a metal terminal that can alleviate the difficulty of securing an arrangement space for the crimping receiving member, and a pressure switch equipped with such a metal terminal. intended to

In order to solve the above-mentioned problems, the metal terminal of the present invention provides a metal terminal that extends from the side of the second surface opposite to the first surface so that a part of the wall portion of the support body protrudes from the first surface. a metal terminal attached to the wall portion, the metal terminal being formed to extend in a first direction connecting the first surface and the second surface of the wall portion, and extending the wall portion from the second surface to the first surface; a terminal body having one end extending through the surface and projecting from the first surface; and a spaced apart from the other end of the terminal body opposite to the one end in a second direction crossing the first direction. an extending portion extending to a position at least at the spaced position, extending from the extending portion in the first direction and penetrating the wall portion from the second surface to the first surface to form the first wall portion; a crimping portion that is crimped and deformed so that the tip portion protruding from the surface is engaged with the first surface ; It is folded up from the extending portion and extends in the first direction in a strip shape so as to form an L shape in a plan view from the first direction, with the direction intersecting the second direction being the width direction. It is characterized by having a shaped shape .

According to the metal terminal of the present invention, the crimping portion is provided at the spaced position away from the terminal main body, and the crimping portion penetrates the wall portion of the support at the spaced position to crimp and deform the tip portion. . As a result, it is possible to provide an arrangement space for the caulking receiving member that receives the force applied during caulking deformation, avoiding the place directly under the terminal body, which may be the place where parts, etc. for electrical connection with the terminal body are arranged. can. As described above, according to the metal terminal of the present invention, it is possible to alleviate the difficulty of securing the arrangement space for the crimping receiving member.

Here, in the metal terminal of the present invention, the extending portion extends from the other end portion of the terminal body to each of the pair of separated positions sandwiching the other end portion of the terminal main body in the second direction. It is preferable that the tightening portion is provided so as to extend from the extension portion at each of at least a pair of the separated positions.

According to this configuration, the metal terminal is fixed by the crimping portions at each of at least a pair of spaced positions sandwiching the terminal main body in the second direction. It is possible to suppress the rotational rattle of the metal terminal.

Moreover, in the metal terminal of the present invention, it is also preferable that the crimping portion extend in a strip shape in the first direction with the width direction being the direction intersecting the second direction.

According to this configuration, it is possible to suppress rotational rattling of the metal terminal about the axis in the second direction due to the strip-shaped shape of the crimped portion whose width direction is the direction that intersects with the second direction.

Further, in the metal terminal of the present invention, it is also preferable that the front end portion of the crimping portion is crimped and deformed so as to extend in a direction intersecting the second direction from the penetrating portion on the first surface. is.

According to this configuration, the distal end portion of the crimped portion crimped and deformed so as to extend in the direction intersecting the second direction can suppress rotational rattle of the metal terminal about the axis in the second direction. .

Further, in the metal terminal of the present invention, it is also preferable that the front end portion of the crimping portion is crimped and deformed so as to split open and extend in two directions from the penetrating portion on the first surface. .

According to this configuration, the fixing strength of the metal terminal to the wall can be improved by the front end portion of the crimped portion that is crimped and deformed so as to split open and extend.

Further, in this configuration, it is more preferable that the two directions are directions that intersect with the second direction.

According to this more preferable configuration, the two directions of the split opening are directions intersecting with the second direction, so that the metal terminal can be prevented from rotating loosely around the axis in the second direction.

In addition, it is preferable that the metal terminal of the present invention further includes a conductive member mounting portion disposed on the other end side of the terminal body and to which a conductive member for electrical connection with the terminal body is mounted.

According to this configuration, the conducting member can be arranged without disturbing the arrangement space for the crimping receiving member.

In order to solve the above-mentioned problems, a pressure switch according to the present invention comprises a pressure sensing member that partitions a low pressure chamber and a high pressure chamber and is displaced by pressure fluctuations in the high pressure chamber, and a conductive state according to the displacement of the pressure sensing member. A pressure switch having switching means for switching and a plurality of metal terminals connected to the switching means, wherein at least one of the plurality of metal terminals is the metal terminal of the present invention described above. do.

According to the pressure switch of the present invention, since the metal terminal of the present invention is adopted as at least one of the plurality of metal terminals, it is necessary to secure the arrangement space for the crimping receiving member when manufacturing the pressure switch. Difficulties can be mitigated.

According to the metal terminal and the pressure switch of the present invention, since the crimping portion is separated from the terminal main body, it is possible to alleviate the difficulty of securing the arrangement space for the crimping receiving member.

1 is a cross-sectional view showing a pressure switch with metal terminals according to one embodiment of the present invention; FIG. FIG. 2 is a cross-sectional view showing the operation of the pressure switch shown in FIG. 1; FIG. 3 is an external perspective view showing the lid shown in FIGS. 1 and 2; FIG. FIG. 4 is a perspective view showing a second terminal as a metal terminal according to one embodiment of the present invention also shown in FIGS. 1 to 3; The state in which the second terminal shown in FIG. 4 is attached to the cover of the case shown in FIGS. It is a figure shown with. FIG. 6 is a view of the second terminal shown in FIG. 5 as viewed in the direction of arrow V12 in FIG. 5;

A metal terminal and a pressure switch according to one embodiment of the present invention will be described below. The pressure switch according to the present embodiment is used for detecting the pressure of a working medium such as air conditioning, cooling, automobiles, various control actuators, etc. as a pressurized fluid. A metal terminal according to the embodiment is employed.

As shown in FIG. 1, the pressure switch 1 of the present embodiment includes a case 2 having an overall box shape, a microswitch 3 as switching means provided at the top of the case 2, and a diaphragm assembly fixed at the bottom of the case 2. 4 and . The pressure switch 1 also includes an actuating member 5 that is supported in a vertically movable manner with respect to the diaphragm assembly 4 , and a transmission member 6 that transmits the movement of the actuating member 5 to the microswitch 3 . Further, the pressure switch 1 includes a leaf spring 7 that biases a diaphragm (pressure-sensitive member) 44 of the diaphragm assembly 4 to apply an initial compressive force, and an adjusting means 8 that adjusts the biasing force of the leaf spring 7. .

The case 2 includes a base body 21 made of metal, a box body 22 that holds the base body 21 inside, and a lid body 23 (support body) that closes an upper opening of the box body 22 and is attached. The base body 21 includes a bottomed cylindrical tubular portion 21a, a flat plate portion 21b extending horizontally outward continuously from the upper end of the tubular portion 21a, and a flat plate portion 21b extending upward from both edges of the flat plate portion 21b. It is integrally formed with a pair of standing plate portions 21c. The diaphragm assembly 4 is supported inside the tubular portion 21a, and the joint member P is connected to the diaphragm assembly 4 through an opening provided in the center of the bottom surface of the tubular portion 21a.

The box body 22 is formed in the shape of a rectangular tube as a whole, and the base body 21 is held by inserting the cylindrical part 21a into a circular opening provided in the bottom face part 22a. A plurality of locking portions 22c are formed on the side portion 22b of the box 22. As shown in FIG.

FIG. 3 is an external perspective view showing the lid shown in FIGS. 1 and 2. FIG.

The lid 23 is made of insulating resin. As shown in FIG. 3, the lid 23 is formed with a top plate portion 23a (wall portion), an annular portion 23b, and a hanging piece portion 23c. The top plate portion 23a is a wall portion to which the microswitch 3 is attached, and the annular portion 23b is a rectangular annular portion that is inserted into the box body 22 along the side surface portion 22b. The hanging pieces 23c extend downward from the four corners of the annular portion 23b and come into contact with the flat plate portion 21b of the base body 21. As shown in FIG. The annular portion 23b is provided with an engaging claw 23d that engages with the engaging portion 22c of the box 22. As shown in FIG. As shown in FIGS. 1 and 2, the inner surface of the side surface portion 22b of the box 22 is provided with an annular waterproof member 23e that is in close contact with the annular portion 23b.

The microswitch 3 is provided inside the lid body 23 of the case 2 and is movable between a pair of fixed electrodes 31 and 32 provided facing each other vertically inside the lid body 23 and the upper and lower fixed electrodes 31 and 32. and a movable electrode 33 provided in. The microswitch 3 also includes a pair of first terminals 34, 34' connected to the pair of fixed electrodes 31, 32 and extending outside the lid 23, and a conductive member 35 made of a plate spring to which the movable electrode 33 is joined. And prepare. Further, the microswitch 3 includes a second terminal 36 connected to the conducting member 35 and extending outside the lid 23 and an adjusting screw 37 for adjusting the position of the upper fixed electrode 31 . The conductive member 35 includes a conductive piece 35a that extends from the second terminal 36 and has the movable electrode 33 fixed to its tip, a movable piece 35b that extends from the second terminal 36 and has an intermediate portion connected to the transmission member 6, and a movable electrode. and a snap piece 35c for biasing the electrode 33 against one of the fixed electrodes 31,32. As will be described later, the displacement of the diaphragm 44 is transmitted to the movable piece 35b via the transmission member 6, and the movable piece 35b is moved according to this displacement. The microswitch 3 has a low voltage state in which the movable electrode 33 contacts the fixed electrode 31 on the upper side and conducts them, and a high voltage state in which the movable electrode 33 contacts the fixed electrode 32 on the lower side and conducts them. , is detected. The microswitch 3 is configured to switch between conduction and interruption between the pair of first terminals 34, 34' and the second terminal 36 by switching the conduction state according to the displacement of the diaphragm 44 in this manner. there is

The diaphragm assembly 4 includes an upper holding plate 41 and a lower holding plate 42 supported by the cylindrical portion 21a of the base body 21, a spacer 43 held between the upper holding plate 41 and the lower holding plate 42, and a diaphragm 44. and a bottom plate member 45. The upper holding plate 41 is formed in the shape of a disk as a whole, and has an insertion hole 41a that penetrates vertically through the central portion thereof and guides the operating member 5 vertically. The lower holding plate 42 has a generally cylindrical shape and includes a stepped portion 42a for holding the spacer 43, the diaphragm 44 and the bottom plate member 45, and an upper holding plate 41 extending upward to caulk and fix the upper holding plate 41. and a fastening piece 42b. In diaphragm assembly 4 , spacer 43 , diaphragm 44 and bottom plate member 45 are sandwiched between upper holding plate 41 and stepped portion 42 a of lower holding plate 42 . The peripheral edge portions of the diaphragm 44 and the bottom plate member 45 are held between the upper holding plate 41 and the lower holding plate 42 by crimping the crimping pieces 42b toward the inside.

The diaphragm 44 is formed in the shape of an overall disc by stacking a plurality of thin metal plates, and has a dome-shaped convex portion 44a that protrudes upward in a natural state. The bottom plate member 45 is made of a disk-shaped metal plate material and is shaped like a plate with a central portion that bulges downward. The diaphragm 44 and the bottom plate member 45 are joined together by welding or the like so as to ensure airtightness and pressure resistance. In this diaphragm assembly 4 , a space surrounded by the diaphragm 44 and the bottom plate member 45 forms a high pressure chamber 46 , into which high pressure fluid flows via the joint member P. A space surrounded by the diaphragm 44, the spacer 43, and the upper holding plate 41 forms a low-pressure chamber 47. The low-pressure chamber 47 communicates with the inner space of the box body 22 through the insertion hole 41a. The internal pressure is equal to atmospheric pressure. Accordingly, the diaphragm 44, which is a pressure sensing member, is configured to move up and down according to pressure fluctuations of the high-pressure fluid that has flowed into the high-pressure chamber 46. As shown in FIG. Thus, the diaphragm 44 is a member that separates the low-pressure chamber 47 and the high-pressure chamber 46 and is displaced by pressure fluctuations in the high-pressure chamber 46 .

The operating member 5 includes a first shaft portion 51 that extends vertically and is inserted into the insertion hole 41a of the upper holding plate 41, an expanded diameter portion 52 that expands in the horizontal direction along the upper surface of the upper holding plate 41, and a second shaft portion 53 extending upward from the enlarged diameter portion 52 . The first shaft portion 51 is guided by the insertion hole 41a so that the operating member 5 is supported so that it can move back and forth in the vertical direction. is provided in Therefore, as the diaphragm 44 is displaced, the operating member 5 moves up and down, and the diaphragm 44 is biased toward the high pressure chamber 46 by the operating member 5 receiving the biasing force of the plate spring 7 . configured to apply a compressive force;

The enlarged diameter portion 52 is provided so that its lower surface can come into contact with the upper surface of the upper holding plate 41, and is provided to restrict the movement of the operating member 5 below the contact position. Therefore, the diaphragm 44 is restricted from being displaced toward the high-pressure chamber 46 beyond the initial compression state. The upper end of the second shaft portion 53 is spherically chamfered so that the upper end abuts a first transmission member 61 of the transmission member 6, which will be described later.

The transmission member 6 includes a first transmission member 61 made of a metal plate material, a second transmission member 62, and a shaft member 63 that rotatably supports the first transmission member 61. . The first transmission member 61 is disposed above the diaphragm assembly 4 with the plate spring 7 interposed therebetween. there is The first transmission member 61 is rotatably supported with respect to the base body 21 by a shaft member 63 . The second transmission member 62 extends upward from the first transmission member 61 and its upper end is engaged with the movable piece 35b of the conduction member 35 of the microswitch 3. As shown in FIG.

The leaf spring 7 has one end portion 71 fixed to the standing plate portion 21 c of the base body 21 and the other end portion 72 connected to the adjusting means 8 . An insertion hole 73 through which the second shaft portion 53 of the operating member 5 is inserted is provided in a substantially central portion of the leaf spring 7 in a plan view, and a portion of the enlarged diameter portion 52 of the operating member 5 is provided on the lower surface of the peripheral portion of the insertion hole 73 . The upper surface of the part abuts. The adjusting means 8 includes an adjusting screw 81 passing through the flat plate portion 21 b of the base body 21 and a slider 82 provided in contact with the upper surface of the leaf spring 7 and screwed into the adjusting screw 81 passing through the leaf spring 7 . It is configured with The adjusting screw 81 is rotatable from below the flat plate portion 21b before the box 22 and the base 21 are assembled, and the slider 82 is supported inside the case 2 so as to be non-rotatable and vertically slidable. there is By rotating the adjustment screw 81, the slider 82 is configured to move up and down. Therefore, when the adjusting screw 81 is tightened and the slider 82 is moved downward, the other end 72 of the leaf spring 7 is lowered, and when the adjusting screw 81 is loosened and the slider 82 is moved upward, the other end of the leaf spring 7 is moved downward. The end portion 72 is raised to adjust the biasing force of the plate spring 7 . Such biasing force of the leaf spring 7 is transmitted to the diaphragm 44 via the operating member 5, and the initial compressive force is applied by pressing the convex portion 44a of the diaphragm 44 downward.

The operation of the pressure switch 1 will be described with reference to FIGS. 1 and 2. FIG.

First, when the high-pressure chamber 46 is filled with high-pressure fluid having a pressure exceeding a predetermined value, as shown in FIG. pushing up. The operating member 5 pushes up the second transmission member 62 via the first transmission member 61 , and the second transmission member 62 pushes up the movable piece 35 b of the conduction member 35 . When the bending of the snap piece 35c engaged with the movable piece 35b exceeds a certain amount, the conductive piece 35a is reversed. At this time, a downward biasing force acts on the conductive piece 35a, and the movable electrode 33 integrally joined to the conductive piece 35a contacts the fixed electrode 32. As shown in FIG. As a result, the first terminal 34' on the front side in the drawing (not shown) and the second terminal 36 of the pair of first terminals 34 and 34' are electrically connected, and the first terminal 34' on the back side in the drawing is electrically connected. The connection between the terminal 34 and the second terminal 36 is cut off. Such a continuity/interruption state between the pair of first terminals 34, 34' and the second terminal 36 is detected as a high voltage state.

Next, when the pressure of the fluid in the high pressure chamber 46 falls below a predetermined value, the biasing force of the leaf spring 7 causes the convex portion 44a of the diaphragm 44 to displace downward as shown in FIG. As a result, the movable piece 35b of the conducting member 35 is lowered via the operating member 5, the first transmission member 61, and the second transmission member 62. As shown in FIG. When the bending of the snap piece 35c engaged with the movable piece 35b exceeds a certain amount, the conductive piece 35a is reversed. At this time, an upward biasing force acts on the conductive piece 35a, and the movable electrode 33 integrally joined to the conductive piece 35a contacts the fixed electrode 31. As shown in FIG. As a result, the first terminal 34 and the second terminal 36 on the back side in the drawing of the pair of first terminals 34 and 34' are electrically connected, and the first terminal on the front side in the drawing (not shown) is electrically connected. 34' and the second terminal 36 are cut off. Such a continuity/interruption state between the pair of first terminals 34, 34' and the second terminal 36 is detected as a low voltage state.

Here, in this embodiment, the metal terminal according to one embodiment of the present invention is employed as the second terminal 36 of the three terminals.

FIG. 4 is a perspective view showing a second terminal as a metal terminal according to one embodiment of the present invention also shown in FIGS. 1 to 3. FIG. 5 shows a state in which the second terminal shown in FIG. 4 is attached to the lid body of the case shown in FIGS. 1 to 3, along the line V11-V11 in FIG. FIG. 4 shows the body cut away; 6 is a view of the second terminal shown in FIG. 5 viewed from the direction of arrow V12 in FIG.

The second terminal 36 is provided on the opposite side of the top plate portion 23a as a wall portion of the cover 23, which is a support made of resin and constitutes the case 2, so as to partially protrude from the outer wall surface (first surface) of the top plate portion 23a. is attached from the inner wall surface (second surface) side of the The second terminal 36 is a sheet metal part cut out from a single sheet metal plate and formed by bending. and have.

The terminal main body 361 is formed in a substantially rectangular plate shape so as to extend in the first direction D11, and the short side direction of the rectangular plate shape is defined as the second direction D12. One end portion 361a of the terminal main body 361 is a portion that penetrates from the inner wall surface of the top plate portion 23a to the outer wall surface and protrudes from the outer wall surface. One end portion 361a of the terminal main body 361 is formed so that the cross section in the short side direction is substantially C-shaped by cutting and raising a portion 361b of each of the pair of long sides. A dimple provided on a conductive piece of a socket contact (not shown) into which the second terminal 36 is inserted, for example, is fitted in the approximate center of the short side direction of the one end portion 361a. A through hole 361c is provided to prevent the socket contact from coming off (not shown).

The extending portion 362 extends from the other end portion 361d of the terminal body 361 opposite to the one end portion 361a along a second direction D12 that is orthogonal to the first direction D11 and is the short side direction of the terminal body 361. This is the part where The extending portion 362 extends from the other end portion 361d to each of a pair of separated positions sandwiching the other end portion 361d. The extending portion 362 is formed in a rectangular band plate shape with the first direction D11 as the short side direction and the second direction D12 as the long side direction. It is integrally connected with 361d.

The caulking portion 363 extends from the extension portion 362 in the first direction D11 at the spaced position, and penetrates from the inner wall surface of the top plate portion 23a to the outer wall surface thereof. In the present embodiment, the separated positions are a pair of positions corresponding to both ends of the extending portion 362, and the crimping portions 363 are arranged in a pair so as to extend from the extending portion 362 at each of the pair of separated positions. is provided. Each caulking portion 363 extends in a strip shape in the first direction D11 with the direction intersecting the second direction D12 as the width direction D13. Specifically, in a substantially H-shaped sheet metal, when the extending portion 362 is a portion corresponding to the horizontal line of the H shape and the crimping portion 363 is a portion corresponding to the vertical line of the H shape, a pair of vertical lines are formed. The corresponding crimped portion 363 is bent at a substantially right angle so as to form a substantially C shape in cross-sectional view from the first direction D11. As a result, a pair of crimping portions 363 extending like strips from both ends of the extending portion 362 are formed. In each of the pair of crimped portions 363, the distal end portion 363a protruding from the outer wall surface is crimped and deformed so as to engage with the outer wall surface. As shown in FIGS. 5 and 6, this crimping deformation is performed so as to extend in the width direction D13 that intersects with the second direction D12 from the penetration point on the outer wall surface of the top plate portion 23a. Specifically, the distal end portion 363a of the crimped portion 363 is crimped and deformed so as to split open in two directions and extend in the width direction D13 from the through portion.

At this time, a force is applied to the distal end portion 363a of each crimping portion 363 in a downward pressing direction D111 in the drawing in the first direction D11. A crimping receiving member (not shown) is disposed directly below the other end 363b of the crimping portion 363 located on the back side of the top plate portion 23a, and the force applied to the tip portion 363a is applied to the other end 363b. is received by a crimping receiving member immediately below. In this way, while the other end 363b of the crimping portion 363 is supported by the crimping receiving member, a force in the pressing direction D111 is applied to the leading end portion 363a to perform crimping deformation.

The conducting member attachment portion 364 is arranged on the side of the other end portion 361d of the terminal body 361, and is a portion to which the above-described conducting member 35 for conducting with the terminal body 361 is attached. The conductive member 35 has a shape in which a conductive piece 35a is left in a frame shape and a movable piece 35b is cut and raised in a tongue-like shape from a leaf spring. The movable electrode 33 is fixed to the tip of the frame-shaped conductive piece 35a, and the snap piece 35c shown in FIGS. 1 and 2 is engaged to the tip of the movable piece 35b. The side of the conducting member 35 opposite to each tip is folded back in a U shape, and this folded portion is attached to the conducting member mounting portion 364 as shown in FIGS. 4 to 6. It is a piece 35e.

The conduction member mounting portion 364 includes a pair of arm portions 364a, a mounting plate 364b, and a pair of locking claws 364c. The pair of arm portions 364a allows the attachment piece 35e of the conductive member 35 to pass from a point closer to the center than the crimping portion 363 at both ends of the extension portion 362 to the side opposite to the terminal main body 361. It is the part which opened the space|interval between them and extended. The mounting plate 364b is a rectangular plate-like portion that is bent at the end of the pair of arms 364a opposite to the extending portion 362 so as to face the back surface of the top plate portion 23a. The mounting plate 364b is placed so that the mounting piece 35e of the conducting member 35 is superimposed on the terminal main body 361 side surface. A pair of locking claws 364c are bent from the mounting plate 364b so as to face each other, pass through the mounting piece 35e, and are bent inward toward each other as shown in FIG. be. The conducting member 35 is fixed to the conducting member mounting portion 364 by the engaging claw 364c. In addition, instead of the locking claw 364c, a method of fixing the conductive member 35 and the conductive member mounting portion 364 instead of the locking claw 364c, such as rivet crimping, spot welding, or screwing, may be used.

At this time, the mounting plate 364 b in the conductive member mounting portion 364 is arranged so as to be accommodated between the pair of crimping portions 363 . The crimping deformation of the leading end portion 363a of the crimping portion 363 is performed by disposing a crimping receiving member (not shown) so as to avoid the mounting plate 364b and the conducting member 35. FIG.

According to the second terminal 36 (metal terminal) and the pressure switch 1 of the embodiment described above, the crimping portion 363 is provided at the separated position from the terminal main body 361, and the crimping portion 363 is at this separated position. The front end portion 363a is crimped and deformed through the top plate portion 23a. As a result, it is possible to avoid the conductive member 35 located directly below the terminal body 361 and to provide an arrangement space for the caulking receiving member that receives the force applied during caulking deformation. As described above, according to the second terminal 36 of the present embodiment, it is possible to alleviate the difficulty of securing the arrangement space for the crimping receiving member.

Here, in the present embodiment, a pair of crimping portions 363 are provided so as to extend from the extension portion 362 at each of a pair of spaced positions corresponding to both end portions of the extension portion 362 . According to this configuration, since the second terminal 36 is fixed by the pair of crimping portions 363, rotation rattling of the second terminal 36 around the axis intersecting both the first direction D11 and the second direction D12 is suppressed. be able to.

Further, in the present embodiment, the crimping portion 363 extends in a strip shape in the first direction D11 with the direction intersecting the second direction D12 as the width direction D13. Then, the distal end portion 363a of the crimping portion 363 is crimped and deformed so as to extend from the penetrating portion of the top plate portion 23a in the width direction D13 that intersects with the second direction D12. According to this configuration, the width direction D13 of the strip-shaped caulked portion 363 penetrating through the top plate portion 23a and the extension direction of the tip end portion 363a of the caulked portion 363 after caulking deformation are aligned with each other. It intersects two directions D12. The strip-shaped shape of the crimping portion 363 and the extending direction of the tip portion 363a in the crimping deformation together prevent the second terminal 36 from rotating loosely around the axis in the second direction D12. can be suppressed. In the present embodiment, the rotational rattle at this time is the rattle caused by the vertical movement of the movable piece 35b of the conductive member 35, but this rattle is suppressed.

In addition, in the present embodiment, the front end portion 363a of the crimping portion 363 is cleaved and extended in two directions in the width direction D13 that intersects with the second direction D12 from the through portion of the top plate portion 23a. It is tightened and deformed. According to this configuration, the fixing strength of the second terminal 36 can be improved by crimping deformation due to the split opening of the leading end portion 363a of the crimp portion 363, and the split opening direction intersects the second direction D12. Also in the second direction D12, it is possible to suppress the rotational rattling of the second terminal 36 according to the vertical movement of the movable piece 35b.

In addition, in the present embodiment, a conductive member attachment portion 364 is provided to which the conductive member 35 arranged on the side of the other end portion 361d of the terminal body 361 is attached. According to this configuration, the conducting member 35 can be arranged without disturbing the arrangement space for the crimping receiving member.

It should be noted that the embodiments described above merely show typical forms of the present invention, and the present invention is not limited thereto. That is, various modifications can be made without departing from the gist of the present invention. As long as the metal terminal and the pressure switch of the present invention are provided even with such a modification, it is of course included in the scope of the present invention.

For example, in the above-described embodiment, as an example of the pressure switch, the second terminal 36 of the three terminals of the pair of first terminals 34, 34' and one second terminal 36 is separated from the terminal main body 361. A pressure switch 1 configured to have a crimping portion 363 is illustrated. However, the pressure switch is not limited to these, and it is possible to arbitrarily set how many of the terminals of the pressure switch specifically have the above configuration.

Moreover, in the embodiment described above, the second terminal 36 provided in the pressure switch 1 is exemplified as an example of the metal terminal. However, the metal terminals are not limited to those provided in the pressure switch. Metal terminals may be provided in devices other than pressure switches, such as coils for electromagnetic valves, connectors for various power sources, flow meters, pressure sensors, etc. Also, metal terminals may be provided in switches other than pressure switches. may A specific application target of the metal terminal can be set arbitrarily.

In the above-described embodiment, as an example of the metal terminal, the extending portion 362 extends to the spaced position spaced in the second direction D12, which is a direction perpendicular to the first direction D11 and along the width direction of the terminal body 361. The second terminal 36 is illustrated with the crimping portion 363 extending from the spaced position. However, the second direction in which the extending portion extends, that is, the separation direction of the crimped portion is in the second direction D12, which is perpendicular to the first direction D11 and along the width direction of the terminal body 361. It is not limited. The second direction in which the extension portion extends may be, for example, a direction orthogonal to the front and back surfaces of the plate-like terminal body, or any direction that intersects the first direction in which the terminal body extends. Orientation can be set.

In addition, in the above-described embodiments, as an example of the metal terminal, the second terminal 36 having the crimping portions 363 provided at a pair of separated positions sandwiching the other end portion 361d of the terminal main body 361 is exemplified. However, the metal terminal is not limited to this, and the specific number and arrangement of crimped portions can be set arbitrarily. For example, a crimped portion is formed in a band plate shape with the direction intersecting the second direction D12 in the width direction D13, and the tip portion is crimped and deformed so as to be bent in one direction in the second direction D12, or , and may be crimped and deformed so as to be split open in two directions in the second direction D12. However, as described above, by providing the crimping portions 363 at the pair of separated positions as described above, it is possible to suppress the rotational rattling of the second terminal 36 (metal terminal).

Further, in the above-described embodiment, as an example of the metal terminal, the second terminal 36 having the crimping portions 363 provided at each of a pair of spaced positions corresponding to both ends of the extending portion 362 is illustrated. However, as long as the crimping portion is provided at least at the separated position, it may be provided so as to extend from the intermediate position of the extending portion in addition to the separated position. By providing a crimping portion also at such an intermediate position, it is possible to improve the fixing strength of the metal terminal. Further, the number of crimping portions at each separated position is not limited to one, and the fixing strength of the metal terminal may be improved by providing a plurality of crimping portions at each separated position.

Further, in the above-described embodiment, as an example of the metal terminal, the second terminal 36 in which the crimping portion 363 extends in a strip shape in the first direction D11 with the direction intersecting the second direction D12 as the width direction D13. is exemplified. However, the metal terminal is not limited to this. can be set arbitrarily. However, by setting the direction intersecting the second direction D12 as the width direction D13 and forming the crimping portion 363 extending in a strip shape in the first direction D11, the second terminal 36 ( As described above, it is also possible to suppress the rotational rattling of the metal terminal).

Further, in the above-described embodiment, as an example of the metal terminal, the leading end portion 363a of the crimping portion 363 is crimped and deformed so as to extend from the penetrating portion of the top plate portion 23a in the direction intersecting the second direction D12. A second terminal 36 is illustrated. However, the metal terminal is not limited to this, and the extension direction of the tip of the crimped portion in crimping deformation can be set arbitrarily. However, by extending the distal end portion 363a of the crimping portion 363 in the direction intersecting the second direction D12, it is possible to suppress the rotational rattling of the second terminal 36 (metal terminal) about the axis in the second direction D12. The point that it can be done is also as described above.

Further, in the above-described embodiment, as an example of the metal terminal, the distal end portion 363a of the crimping portion 363 is crimped and deformed so as to split open and extend in two directions intersecting the second direction D12. Two terminals 36 are illustrated. However, the metal terminal is not limited to this, and the deformed shape of the tip portion of the crimped portion in the crimping deformation can be set arbitrarily. For example, a crimped portion may be formed in a strip shape with the second direction D12 as the width direction, and the tip portion thereof may be split open in two directions so as to intersect the second direction D12 for crimping deformation. Alternatively, the caulking portion may be formed in the shape of a round bar or a square bar, and the tip portion thereof may be crimped and deformed so as to be crushed. However, by crimping and deforming the distal end portion 363a of the crimping portion 363 so as to split open and extend in two directions intersecting the second direction D12, the metal terminal rotates about the axis in the second direction. It is also as described above that rattling can be suppressed.

In addition, in the above-described embodiments, as an example of the metal terminal, the second terminal 36 in which the conductive member mounting portion 364 is arranged on the other end portion 361d side of the terminal main body 361 is exemplified. However, the metal terminal is not limited to this, and the conductive member mounting portion 364 may not be provided. However, as described above, by providing the conductive member mounting portion 364 , the conductive member 35 can be arranged without disturbing the arrangement space of the crimping receiving member with respect to the crimping portion 363 .

1 pressure switch 2 case 3 microswitch 23 cover (support)
23a Top plate (wall)
31, 32 fixed electrode 33 movable electrode 34, 34' first terminal 35 conduction member 36 second terminal (metal terminal)
361 Terminal body 361a One end 361d, 363b Other end 362 Extension 363 Crimp portion 363a Tip 364 Conductive member mounting portion D11 First direction D12 Second direction D13 Width direction D111 Pressure direction

Claims (7)

A metal terminal attached to the wall from the side of the second surface opposite to the first surface so as to partially protrude from the first surface of the wall of the support,
It is formed so as to extend in a first direction connecting the first surface and the second surface of the wall, penetrates the wall from the second surface to the first surface, and has one end as the a terminal body protruding from the first surface;
an extending portion extending from the other end portion of the terminal body opposite to the one end portion to a spaced position spaced apart in a second direction intersecting the first direction;
A tip portion extending in the first direction from the extending portion at least at the spaced position, penetrating the wall portion from the second surface to the first surface, and protruding from the first surface is the first a crimping portion that is crimped and deformed so as to engage with the surface ,
The crimping portion is configured such that the crimping portion and the extension portion form an L shape in plan view from the first direction at the separated position, with the direction intersecting the second direction being the width direction. A metal terminal, characterized in that it has a strip-like shape that is bent from the extending portion and extended in the first direction . the extending portion extends from the other end of the terminal body to each of the pair of separated positions sandwiching the other end of the terminal body in the second direction;
2. The metal terminal according to claim 1, wherein the crimping portion is provided so as to extend from the extending portion at each of at least a pair of the separated positions. 3. The crimping portion according to claim 1, wherein the front end portion of the crimping portion is crimped and deformed so as to extend from the through portion on the first surface in a direction intersecting with the second direction. metal terminals. 4. Any one of claims 1 to 3 , wherein the front end portion of the crimped portion is crimped and deformed so as to split open and extend in two directions from the through portion on the first surface. The metal terminal according to item 1. 5. The metal terminal according to claim 4 , wherein said two directions are directions crossing said second direction. 6. The terminal body further comprises a conducting member mounting portion disposed on the side of the other end of the terminal body and to which a conducting member for conducting with the terminal body is mounted. Metal terminal as described in item. a pressure-sensitive member that partitions the low-pressure chamber and the high-pressure chamber and is displaced by pressure fluctuations in the high-pressure chamber; switching means for switching between conductive states according to the displacement of the pressure-sensitive member; and a plurality of metal terminals connected to the switching means. a pressure switch having
A pressure switch, wherein at least one of the plurality of metal terminals is the metal terminal according to any one of claims 1 to 6 .

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