JP2012190642A - Swing operation type switch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a swing operation type switch device in which a single pressing member has both an operation function of a movable contact and a recovery function to a prescribed contact state and in which assemblability is excellent.SOLUTION: A swing operation type switch device comprises an operation body 4 which is held in an outer case 2 to be swingably operable, a movable conductor 8 which has a movable contact 81 at one end that contacts and separates from a fixed contact 61 according to the swing operation of the operation body 4, a torsion spring 13 at the other end of the movable conductor 8 which constantly applies pressing force to the upper side, a magnet 9 integrally formed in the operation body 4 and an electric magnet 10 which can attract the magnet 9. In the on-state, the attraction between the electric magnet 10 and the magnet 9 resisting against the pressing force of the torsion spring 13 causes the operation body 4 to be kept in a state of being swung to one side. At the time of the off-state, the conduction state to the electric magnet 10 is switched so as to cancel the attraction condition between the electric magnet 10 and the magnet 9, the other end side of the movable conductor 8 is raised by the pressing force of the torsion spring 13, and the operation body 4 is swung to the other side through a driving member 11.

Description

  The present invention relates to a swing operation type switch device, and more particularly, to a swing operation type switch device used as a power switch for home appliances such as an electronic musical instrument, a vacuum cleaner, and a sewing machine.

  2. Description of the Related Art Conventionally, as a swing operation type switch device used as a power switch for home appliances, a device that dynamically returns a contact state of a contact mechanism to an original state is known (see, for example, Patent Document 1). This swing operation type switch device is configured by swinging an operating body for operating a movable contact in a housing having an upper surface opened. The operating body is connected to the movable contact via a coiled operating spring. Then, the operating spring is reversed left and right according to the swinging operation of the operating body, whereby the movable contact is separated from the fixed contact and the contact state of the contact mechanism is switched.

  A metal armature that swings when pushed into one end of the operating body is provided in the housing. One end side of the armature is biased upward by a return spring provided in the housing. Below the armature, there is provided an electromagnet that holds the armature against the urging force of the return spring when the positive element is pushed into the operating body. In this switch device, by controlling the energization of the coil of the electromagnet, the holding of the armature by the electromagnet is released, and the one end side of the operating body is pushed back upward via the armature by the biasing force of the return spring.

JP-A-9-129089

  However, in the swing operation type switch device described in Patent Document 1, in addition to the operation spring used for switching the contact state of the contact mechanism, a return spring is used to dynamically return the contact state to the original state. In need of. For this reason, a return spring must be provided in the swing operation type switch device, and there is a problem that the assemblability is low.

  The present invention has been made in view of such a situation, and a single urging member can be provided with an operation function of a movable contact and a function of returning to a predetermined contact state, and the assembly property is also good. An object of the present invention is to provide a swing operation type switch device.

  The swing operation type switch device according to the present invention includes an operation body having an operation portion exposed to be swingable in an opening of a case, a fixed contact and a fixed terminal provided in a separated state in the case, and the fixed A movable conductor provided on one end side with a movable contact that is electrically connected to the terminal and is brought into and out of contact with the fixed contact as the operating body swings, and is always attached upward to the other end of the movable conductor. A biasing member for applying a force; a drive member disposed between the other end of the movable conductor and the operating body; and moving up and down with a swinging motion of the operating body; and the operating body. The magnetic member provided integrally and an electromagnet capable of attracting the magnetic member according to the energized state, and in the on state where the movable contact is in contact with the fixed contact, the biasing force of the biasing member The attraction between the resisted electromagnet and the magnetic member While the workpiece is held in a state of swinging to one side, when the movable contact is in an off state separated from the fixed contact, the attracting state between the electromagnet and the magnetic member is released. The energization state of the electromagnet is switched, the other end side of the movable conductor is raised by the urging force of the urging member, and the operating body is swung to the other side via the drive member. And

  According to this configuration, the movable contact is provided with the urging member that always applies the urging force upward to the other end of the movable conductor provided on the one end side, and the urging force of the urging member is used to obtain a predetermined force. Therefore, the single biasing member can be provided with the function of operating the movable contact and the function of returning to the predetermined contact state. . In addition, since a single urging member can have a plurality of functions, the number of parts in the apparatus can be reduced, and the assemblability can be improved. As a result, it is possible to provide a single urging member with an operation function of a movable contact and a function of returning to a predetermined contact state, and it is possible to provide a swing operation type switch device with good assembly. Become.

  In the swing operation type switch device, one end side of the biasing member is locked to a first locking portion provided protruding from the inner bottom portion of the case, and the other end side is the other end side of the movable conductor. A second torsion spring locked to a second locking portion provided at a part of the first locking portion. It is preferable to dispose at a position on the upper side of the position on one end side that is locked to. In this case, the first locking part is provided in a part of the case, while the second locking part is provided in a part of the movable conductor and is locked to the second locking part. Since the position of the end side is arranged at a position higher than the position of the one end side locked by the first locking portion, the urging force of the torsion spring can be concentrated on the other end side. With a simple configuration, it is possible to apply a biasing force that always biases upward to the other end of the movable conductor.

  In particular, in the swing operation type switch device, it is preferable that the first locking portion is provided at a part of the fixed terminal provided at an inner bottom portion of the case. In this case, since one end side of the torsion spring is locked to a part of the fixed terminal, adverse effects due to thermal deformation or the like can be reduced, so that one end side of the torsion spring is securely locked while ensuring positional accuracy. It becomes possible.

  Further, in the swing operation type switch device, a partition is provided in the case, and the fixed contact, the movable conductor and the fixed terminal are disposed below the partition, while the electromagnet and the operation body are It is preferable to be disposed above the partition wall. In this case, the space in which the fixed contact, the movable conductor, and the fixed terminal are disposed can be separated from the space in which the electromagnet and the operation body are disposed by the partition wall, thereby increasing the space utilization efficiency in the case. be able to. In addition, since the contact mechanism is arranged below the partition wall, it can be arranged apart from the operation body that receives an operation from the operator, so that safety can be improved.

  Particularly, in the swing operation type switch device, it is preferable that the partition wall is housed inside the case and is constituted by a part of an inner case for positioning the driving member and the electromagnet. In this case, since the partition wall is configured by a part of the inner case for positioning the driving member and the electromagnet, the space utilization efficiency in the case can be increased while reducing the number of parts of the device.

  In the swing operation type switch device, a partition for partitioning a space in which an energization terminal for the electromagnet is disposed on an inner bottom surface of the case from a space in which the fixed contact, the movable conductor, and the fixed terminal are disposed. It is preferable that the wall is erected. In this case, since the space in which the energization terminal for the electromagnet is arranged can be separated from the space in which the fixed contact, the movable conductor, and the fixed terminal are arranged, the contact between the energization terminal and the movable conductor is prevented. Therefore, it is possible to effectively prevent problems of the switch device due to these contacts.

  Furthermore, in the swing operation type switch device, it is preferable that a guide portion for guiding the driving member is provided on an inner wall portion of the case or a part of a side wall portion of the inner case. In this case, since the driving member is guided by the inner wall part of the case or a part of the side wall part of the inner case, the transmission of the operation between the operating body and the movable conductor via the driving member is made smooth. Thus, the on state and the off state can be switched reliably.

  Further, in the swing operation type switch device, the driving member includes a pair of arm portions placed on a holding portion provided on the other end side of the movable conductor with the second locking portion interposed therebetween. It is preferable to have. In this case, since the pair of arms are placed on the holding portion provided on the other end side of the movable conductor with the second locking portion interposed therebetween, the swinging motion of the operating body is accompanied. It becomes possible to push down the movable conductor in a balanced manner. Further, it is possible to appropriately transmit the urging force acting on the movable conductor to the drive member.

  Further, in the swing operation type switch device, the magnetic member is preferably composed of a magnet. In this case, since the on state can be maintained by using the attractive force of the magnet with respect to the electromagnet, it is possible to provide a swing operation type switch device with low power consumption that does not always require energization of the electromagnet. Become.

  In the swing operation type switch device, the magnetic member can be made of a soft magnetic material. In this case, since the material cost can be reduced as compared with the case where the magnetic member is formed of a magnet, the manufacturing cost of the swing operation type switch device can be reduced.

  In particular, in the swing operation type switch device, it is preferable to provide a protective portion for protecting the magnet or soft magnetic body on the operating body. In this case, since the magnet or the soft magnetic material can be protected, it is possible to suppress the occurrence of problems related to switching between the on state and the off state due to the breakage.

  Further, the swing operation type switch device includes a support member that rotatably supports one end side with the other end side of the movable conductor as a rotation fulcrum, and the support member has one end side of the fixed terminal. It is preferable that the second locking portion is locked to a third locking portion provided in a part, and the other end side is locked to a fourth locking portion provided in a part of one end side of the movable conductor. In this case, since the movable conductor is supported by the support member so that the other end side can be pivoted about the other end side, the operation of the movable conductor can be stabilized and provided on the one end side. The movable contact thus made can be brought into and out of contact with the fixed contact.

  Furthermore, in the swing operation type switch device, it is preferable that the movable conductor performs a snap action operation in accordance with the swing operation of the operation body. In this case, since the on / off state can be quickly switched with the swinging motion of the operating body, the reliability can be improved.

  Furthermore, in the swing operation type switch device, it is preferable that a stopper portion for restricting the upward movement from a certain position on one end side of the movable conductor is provided on the lower surface portion of the inner case. In this case, even when the movable conductor performs the snap action operation, it is possible to restrict the movement of the one end side portion of the movable conductor beyond a certain position, and it is possible to ensure a stable operation.

  Furthermore, in the swing operation type switch device, it is preferable that the support member forms a conductive path between the movable conductor and the fixed terminal. In this case, since the supporting member that supports the movable conductor can also have a conductive function, it is possible to reduce the number of parts in the apparatus, improve the assembly, and reduce the manufacturing cost. Become.

  According to the present invention, the movable contact is provided with the urging member that always applies the urging force to the other end side of the movable conductor provided at the one end side, and the urging force of the urging member is used to obtain the predetermined force. The contact state (off state in which the movable contact is separated from the fixed contact) can be made so that a single biasing member can have a function for operating the movable contact and a function for returning to a predetermined contact state. In addition, it is possible to provide a swing operation type switch device with good assembly.

It is a disassembled perspective view which shows the whole structure of the switch apparatus which concerns on one embodiment of this invention. It is a disassembled perspective view which shows the whole structure of the switch apparatus which concerns on the said embodiment. It is the top view (a) of the outer case which the switch apparatus concerning the said embodiment has, and sectional drawing (b) in the dashed-dotted line shown to this top view. It is the perspective view (a) and side view (b) of the insulation base which the switch apparatus which concerns on the said embodiment has. It is the perspective view (a) and side view (b) of the movable conductor which the switch apparatus which concerns on the said embodiment has. It is the perspective view (a) and side view (b) of the internal case which the switch apparatus which concerns on the said embodiment has. It is the side view (a) and side sectional view (b) of the operation body which the switch apparatus which concerns on the said embodiment has. It is a side view which shows the external appearance of the switch apparatus which concerns on the said embodiment. FIG. 9 is a side view of the switch device with the outer case omitted from FIG. 8. It is a sectional side view of the switch device concerning the above-mentioned embodiment. It is a sectional side view of the switch device concerning the above-mentioned embodiment. It is a sectional side view of the switch device concerning the above-mentioned embodiment.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
1 and 2 are exploded perspective views showing the overall configuration of a swing operation type switch device (hereinafter simply referred to as “switch device”) 1 according to an embodiment of the present invention. In the following, for convenience of explanation, the left side shown in FIG. 1 is referred to as “the left side of the switch device 1” or simply “the left side”, and the right side shown in FIG. It shall be called “right side” or simply “right side”. FIG. 2 shows a state in which the horizontal direction shown in FIG. 1 is reversed.

  As shown in FIG. 1, the switch device 1 according to the present embodiment includes an outer case 2 that opens upward, an inner case 3 that is housed in the outer case 2 and partitions a space in the outer case 2 up and down, An operating body 4 is provided on the upper side of the inner case 3 and is arranged so as to be swingable with a part (operating portion) exposed from the outer case 2. In the lower space partitioned by the inner case 3, there are fixed contact terminals 6 and 7 having fixed contacts 61 provided on the insulating base 5 constituting the bottom surface of the outer case 2, and fixed contacts 61. A movable conductor 8 provided with a movable contact 81 that contacts and separates is disposed (see FIG. 2). On the other hand, in an upper space partitioned by the inner case 3, a magnet 9 provided integrally with the operation body 4, an electromagnet 10 configured to attract the magnet 9 according to the energized state, and the operation body 4. And a drive member 11 that moves up and down in accordance with the swinging motion. Hereinafter, each member which comprises the switch apparatus 1 which concerns on this Embodiment is demonstrated.

  The outer case 2 is made of, for example, a thermoplastic resin material such as polyacetal or polyamide. As described above, the outer case 2 has a box shape opened upward, and a storage portion 201 in which the inner case 3 and the like are stored is provided. Of the side walls of the outer case 2 that is rectangular in plan view, a hole 203 is formed at the upper center of the side wall 202 in the longitudinal direction to engage a shaft 403 of the operating body 4 described later. ing. Further, a hook portion 205 for snap engagement with an electronic device or the like to which the switch device 1 is attached is provided on the lateral side wall portion 204 of the outer case 2. Further, an opening 206 is provided in the lower surface portion of the outer case 2, and the insulating base 5 is fixed to the opening 206 (see FIG. 2). Here, the case where the insulating base 5 is fixed to the outer case 2 is shown, but the insulating base 5 may be integrally provided as a part of the outer case 2. A pair of wall portions 207 extending downward are provided on the lower surface of the outer case 2 on the side of the opening 206.

  FIG. 3A is a top view of the outer case 2 included in the switch device 1 according to the present embodiment, and FIG. 3B is a cross-sectional view taken along the alternate long and short dash line shown in FIG. 3 shows the outer case 2 in a state before the insulating base 5 is fixed.

  As shown in FIG. 3 (b), in the outer case 2, a pair of wall portions 209 are erected on the side of the inner bottom surface portion 208 that defines the opening 206. These wall portions 209 constitute a partition wall that partitions a space formed on the lower side of the inner case 3. In addition, a pair of slits 210 into which the terminals 12 for energization to the electromagnet 10 (see FIG. 1) are inserted are formed on the sides of these wall portions 209. These slits 210 are formed outside the wall portion 207 provided on the lower surface of the outer case 2 as shown in FIG. In addition, a concave portion 211 corresponding to the outer shape of the insulating base 5 is formed in the inner bottom surface 208 that defines the opening 206, and the insulating base 5 can be securely fixed at a predetermined position.

  The insulating base 5 is formed of a thermoplastic resin material such as polyacetal or polyamide, as with the outer case 2. The insulating base 5 is generally rectangular in plan view. A protruding portion 501 that protrudes upward is provided at the center of the insulating base 5 in the longitudinal direction. In the center of the protruding portion 501, an inclined surface portion 502 is provided that is configured at substantially the same angle as an inclined portion 703 of the fixed terminal 7 described later. A slit 503 through which the fixed terminal 7 is inserted is formed at the center of the right side portion of the protruding portion 501. On the other hand, a slit 504 through which the fixed contact terminal 6 is inserted is formed on the left side portion of the protruding portion 501. The slit 504 is formed at a position slightly closer to one side wall 202 than the center of the insulating base 5. These slits 503 and 504 are formed to extend in the longitudinal direction of the insulating base 5.

  The fixed contact terminal 6 and the fixed terminal 7 are made of a conductive metal plate material. At the upper end portion of the fixed contact terminal 6, a bent portion 601 is provided that is bent substantially orthogonally from a terminal body extending in the vertical direction. The fixed contact 61 is provided on the upper surface of the bent portion 601. A locking portion 701 for locking one end of a torsion spring 13 described later and a locking portion 702 for locking one end of a support arm 14 described later are formed on the upper side portion of the fixed terminal 7. The locking portion 701 constitutes a first locking portion, and the locking portion 702 constitutes a third locking portion. In addition, an inclined portion 703 is provided at the left side end of the upper portion of the fixed terminal 7.

  4A and 4B are a perspective view and a side view of the insulating base 5 included in the switch device 1 according to the present embodiment, respectively. 4A and 4B show the insulating base 5 in a state where the fixed contact terminal 6 and the fixed terminal 7 are fixed.

  As shown in FIG. 4A, in the insulating base 5, the fixed contact terminal 6 is inserted through the slit 504 and is fixed in a state where the bent portion 601 is overlapped on the upper surface of the insulating base 5. The fixed contact 61 is arranged at the center portion in the short direction of the insulating base 5 in a state where the fixed contact terminal 6 is fixed to the insulating base 5. In this case, the fixed contact 61 is disposed on an extension line in the extending direction of the fixed terminal 7 fixed to the insulating base 5 (extending direction of the slit 503).

  The fixed terminal 7 is inserted through the slit 503 and is fixed in a state where the upper side portion where the locking portions 701 and 702 and the like are formed is exposed. In a state of being fixed to the insulating base 5, the inclined portion 703 forms an inclined surface that is continuous with the inclined surface portion 502 of the protruding portion 501. The inclined surface composed of the inclined surface portion 502 and the inclined portion 703 is used when one end of a torsion spring 13 described later is locked to the locking portion 701.

  In the fixed terminal 7, the locking portion 701 has a shape opened to the right side as shown in FIGS. 4A and 4B, and the locking portion 702 is opened to the left side. It has a shape. The locking part 701 is disposed at a position on the left side of the locking part 702 and is disposed at a position below the locking part 702. An inclined portion 703 is disposed above the locking portion 701, and one end of a torsion spring 13 described later is guided to the locking portion 701 by the inclined portion 703.

  The movable conductor 8 is formed by stamping and bending a conductive metal plate material. The movable conductor 8 is provided with a movable contact 81 on the lower surface on one end side disposed on the left side (see FIG. 2). A locking portion 801 that locks the other end of the support arm 14 to be described later is provided on the left side of the movable conductor 8 and in the vicinity of the movable contact 81. On the other hand, a locking portion 802 that locks the other end of the torsion spring 13 described later is provided on the upper surface of the other end side disposed on the right side of the movable conductor 8. Note that the locking portion 801 constitutes a fourth locking portion, and the locking portion 802 constitutes a second locking portion. Furthermore, a pair of holding portions 803 are provided on the other end side of the movable conductor 8 with the locking portion 802 interposed therebetween. These holding portions 803 are mounted with lower end portions of projecting pieces 1102a of the driving member 11 described later.

  The torsion spring 13 constitutes an urging member, and is formed, for example, by twisting a metal bar. Locking pieces 13 a and 13 b that are bent inward are provided at both ends of the torsion spring 13. The support arm 14 constitutes a support member, and is formed, for example, by bending a conductive metal bar. The support arm 14 has a U-shape that opens to the left in plan view, and locking pieces 14a and 14b that are bent outward are provided at both tip portions thereof. The support arm 14 forms a conductive path between the fixed terminal 7 and the movable conductor 8.

  5A and 5B are a perspective view and a side view of the movable conductor 8 included in the switch device 1 according to the present embodiment, respectively. 5A and 5B show the state of the movable conductor 8 when the switch device 1 is in the OFF state. 5A and 5B show the movable conductor 8 in a state in which the torsion spring 13 and the support arm 14 are locked, and the fixed terminal 7 is also shown for convenience of explanation.

  As shown in FIGS. 5A and 5B, the torsion spring 13 has a locking piece 13a provided on one end side and a locking portion 701 of the fixed terminal 7 and is provided on the other end side. The latching piece 13b is disposed in a state of being latched to the latching portion 802 of the movable conductor 8. In the present embodiment, the case where the locking piece 13a of the torsion spring 13 is locked to the locking portion 701 of the fixed terminal 7 will be described. However, a part of the insulating base 5 (for example, the insulating base) You may make it latch by a part of protrusion part protruded upwards from the stand 5).

  In the support arm 14, the bent portion 14 c provided on one end side is engaged with the engaging portion 702 of the fixed terminal 7, and the engaging pieces 14 a and 14 b provided on the other end side are engaged with the movable conductor 8. It arrange | positions in the state latched by the stop part 801. FIG. The support arm 14 is supported from below by a pair of claw portions 804 provided in the vicinity of the locking portion 801 of the movable conductor 8. The support arm 14 serves to support one end side of the movable conductor 8 so that the other end side of the movable conductor 8 can be pivoted, so that the movable conductor 8 can be stably operated. As described above, since the support arm 14 that supports the movable conductor 8 as described above has a function as a conductive path between the fixed terminal 7 and the movable conductor 8, the components of the switch device 1. The number of points can be reduced, the assemblability can be improved, and the manufacturing cost can be reduced.

  As shown in FIG. 5A, the locking piece 13 a of the torsion spring 13 passes through the inside of the support arm 14 and is locked to the locking portion 701 of the fixed terminal 7. As shown in FIG. 5B, the torsion spring 13 is arranged in a state where the locking piece 13a is positioned below the locking piece 13b. Further, the support arm 14 is arranged in a state where the locking piece 14a (14b) is positioned slightly above the bent portion 14c. The locking piece 13a of the torsion spring 13 is disposed at a position below the bent portion 14c of the support arm 14, and the locking piece 13b is positioned above the locking piece 14a (14b) of the support arm 14. Are arranged.

  The inner case 3 is made of, for example, a thermoplastic resin material such as polyacetal or polyamide, and is generally rectangular in plan view. The outer shape of the inner case 3 is provided in substantially the same shape as the inner wall surface of the storage portion 201 of the outer case 2. A housing portion 301 for housing the electromagnet 10 is provided on the upper surface of the left side portion of the inner case 3, and a housing portion 302 for housing the main body (winding portion) of the torsion spring 13 is provided on the lower surface of the right side portion. Provided (see FIG. 2).

  A pair of fixing pieces 304 each having a rectangular opening 304a are provided at a position slightly to the left of the center of the longitudinal side wall portion 303 in the inner case 3. These openings 304a accommodate a projection 1001e of a bracket 1001b, which will be described later, and position the electromagnet 10. A pair of guide portions 305 for guiding the vertical movement of the drive member 11 is provided at a position slightly to the right of the center of the side wall portion 303 in the longitudinal direction. These guide portions 305 are provided as concave portions extending vertically, and are configured to accommodate arm portions 1102 of the drive member 11 described later.

  In addition, slits 306a and 306b through which the energization terminals 12 for the electromagnet 10 are inserted are formed at the left end and the right end of the inner case 3 (see FIG. 2). In addition, a protruding piece 307 that is rectangular in a plan view is provided at the center of the lower surface of the left side portion (the portion corresponding to the housing portion 301) of the inner case 3 (see FIG. 2). The protruding piece 307 functions as a stopper portion that restricts the upward movement of the movable conductor 8 from a certain position.

  The electromagnet 10 includes a coil holder 1001c having a pair of brackets 1001a and 1001b arranged apart from each other by a certain distance, and a cylindrical connecting portion (not shown) that connects these brackets 1001a and 1001b (see FIG. 10), and a coil holder 1001c. An iron core 1002 inserted through the connecting portion, a coil 1003 wound around the outer periphery of the connecting portion of the coil holder 1001c, and a yoke 1004 that prevents leakage of the magnetic field (lines of magnetic force) generated from the coil 1003 to the outside. It is configured with. In the electromagnet 10, a magnetic field amplified by the iron core 1002 is generated by passing a current through the coil 1003 via the energization terminal 12.

  Each of the brackets 1001a and 1001b has a generally L-shape when viewed from the side, and a hole 1001d is formed in an upper portion of a plane disposed perpendicular to the inner bottom surface of the inner case 3. The yoke 1004 is generally L-shaped when viewed from the side, and a horizontal surface 1004 a is disposed above the coil 1003. Moreover, it has the vertical surface 1004b which hangs down to the left side edge part of this horizontal surface 1004a, and the hole 1004c is formed in the center of this vertical surface 1004b.

  The bracket 1001b is provided with a pair of protrusions 1001e with a hole 1001d interposed therebetween. These protrusions 1001e engage with openings 304a provided in the inner case 3 and are used for positioning the electromagnet 10. The bracket 1001a is formed with a slit 1001f through which the energization terminal 12 is inserted (see FIG. 2). In a state where the electromagnet 10 is accommodated in the accommodating portion 301 of the inner case 3, the energizing terminal 12 is inserted through the slit 306a through the slit 1001f.

  A rectangular head portion 1002 a is provided at the right side end of the iron core 1002. The head unit 1002a is attracted to the magnet 9 held by the holding unit 402 of the operation body 4 to be described later, while the attracting state with the magnet 9 is changed according to the magnetic field generated according to the direction of the current flowing through the coil 1003. It is a part to unwind and separate.

  6A and 6B are a perspective view and a side view of the inner case 3 included in the switch device 1 according to the present embodiment, respectively. 6A and 6B show a state in which the electromagnet 10 is housed in the housing portion 301 of the inner case 3. In FIGS. 6A and 6B, the energizing terminal 12 used for energizing the electromagnet 10 (coil 1003) is omitted.

  As shown in FIGS. 6A and 6B, in the electromagnet 10, the tip end portion of the iron core 1002 inserted through the holes 1001d of the brackets 1001a and 1001b is inserted into the hole 1004c of the yoke 1004, and an adhesive or the like is used. They are integrated by adhering to the vertical surface 1004b. The integrated electromagnet 10 is accommodated in the accommodating part 301 in the state positioned by the protrusion part 1001e of the bracket 1001b. In this case, the head portion 1002a of the iron core 1002 protrudes from the surface of the bracket 1001b.

  The operation body 4 is made of, for example, a thermoplastic resin material such as polyacetal or polyamide. The operation body 4 includes an operation portion 401 having a generally box shape that opens downward, and a holding portion 402 that extends from the center of the lower surface of the operation portion 401 and holds the magnet 9. The operation unit 401 is provided with a size such that a part of the operation unit 401 can be stored in the storage unit 201 of the outer case 2. A pair of shaft portions 403 projecting sideways is provided at the center of the side surface portion of the operation portion 401. The shaft portion 403 is provided with a size that can be inserted into the hole 203 of the outer case 2.

  The holding part 402 includes a pair of plate-like parts 402a and 402b that are arranged to face each other with a certain distance therebetween. In the vicinity of the lower end portion of the plate-like portion 402a, a rectangular opening 402c is formed, and a pair of side wall portions 402d protruding from the side edge portion toward the plate-like portion 402b is provided. On the other hand, the plate-like portion 402b is provided with a protruding piece 402e that protrudes from the lower end portion toward the plate-like portion 402a. The opening 402c of the plate-like portion 402a is slightly smaller than the outer shape of the magnet 9, and is provided with a dimension that allows the head portion 1002a of the iron core 1002 to pass therethrough. The plate-like portion 402 b provided with the opening 402 c functions as a protection portion that protects the magnet 9. As described above, by providing the operating body 4 with the protective portion, the magnet 9 can be prevented from being damaged.

  The magnet 9 constitutes a magnetic member and has a rectangular parallelepiped shape. The magnet 9 is provided with a dimension slightly thinner than the dimension between the plate-like parts 402 a and 402 b constituting the holding part 402. The magnet 9 is fixed to the inner wall surface of the plate-like portion 402b with an adhesive or the like. The magnet 9 is magnetized so as to be attracted to the head portion 1002a when approaching within a certain range of the head portion 1002a of the iron core 1002.

  FIGS. 7A and 7B are a side view and a side sectional view of the operating body 4 included in the switch device 1 according to the present embodiment, respectively. FIGS. 7A and 7B show the operating body 4 in a state where the magnet 9 is held by the holding unit 402. FIG. 7B shows a cross-section at the center in the short direction of the operation unit 401 included in the operation body 4.

  As shown in FIGS. 7A and 7B, the magnet 9 is held between the plate-like portion 402a and the plate-like portion 402b constituting the holding portion 402. In the state of being held by the holding portion 402, the magnet 9 is prevented from dropping downward by the protruding piece 402e of the plate-like portion 402a, and the side wall portion 402d of the plate-like portion 402b is prevented from falling off to the side. ing. Further, in the state held by the holding portion 402, the magnet 9 is in a state where the left side surface is exposed from the opening 402c formed in the plate-like portion 402a.

  A rib 404 is provided at the center of the lower surface of the operation unit 401 as shown in FIG. The rib 404 is provided only on the right side portion where the driving member 11 is disposed. The rib 404 abuts on a contact piece 1103 of the drive member 11 described later, and moves the drive member 11 in the vertical direction in accordance with the swinging operation with respect to the operation body 4.

  The drive member 11 is made of, for example, a thermoplastic resin material such as polyacetal or polyamide. The drive member 11 has a base portion 1101 extending in the horizontal direction and a pair of arm portions 1102 provided to extend downward from both ends of the base portion 1101. The arm portion 1102 has a protruding piece 1102a provided with a left side portion protruding from the right side portion at the lower end portion. The driving member 11 is placed on the holding portion 803 of the movable conductor 8 by these protruding pieces 1102a. A contact piece 1103 that protrudes upward is provided at the center of the upper surface of the base 1101. The upper end portion of the contact piece 1103 is provided in a spherical shape.

  When these components are incorporated into the outer case 2, the switch device 1 shown in FIG. 8 is completed. FIG. 8 is a side view showing an appearance of the switch device 1 according to the present embodiment. 8 shows the appearance of the switch device 1 in a state where the movable contact 81 provided on the movable conductor 8 is separated from the fixed contact 61 provided on the fixed contact terminal 6 (that is, in the off state). Yes.

  As shown in FIG. 8, in the switch device 1, the operating body 4 is covered in a state in which components such as the movable conductor 8, the inner case 3, and the driving member 11 are housed in the housing portion 201 of the outer case 2. ing. The operating body 4 is swingably held in the outer case 2 when the shaft portion 403 is engaged with the hole 203. In addition, the operating body 4 is in a state in which a part of the operation unit 401 is exposed from the outer case 2, and is configured to be able to accept a swing operation from the operator at this exposed portion.

  Inside the outer case 2, the inner case 3 is in a state of being placed on the upper ends of a pair of wall portions 209 erected on the inner bottom surface of the outer case 2 (see FIG. 10). In this case, the wall 209 separates the space in which the energization terminal 12 is disposed from the space in which the movable conductor 8 and the like are disposed. Thereby, the contact with the terminal 12 for electricity supply, the movable conductor 8, etc. can be prevented, and the malfunction of the switch apparatus 1 resulting from these contacts can be prevented effectively.

  Further, since the outer shape of the inner case 3 is provided in substantially the same shape as the inner wall surface of the storage portion 201 of the outer case 2, the bottom surface portion forms a partition that partitions the storage portion 201. . In the upper and lower spaces partitioned by the bottom surface portion (partition wall) of the inner case 3, each component is arranged as shown in FIG. FIG. 9 is a side view of the switch device 1 with the outer case 2 omitted from FIG.

  As shown in FIG. 9, the movable conductor 8 in a state where the torsion spring 13 and the support arm 14 are locked is disposed in the space below the inner case 3 as described above. The other end of the movable conductor 8 is urged upward by the urging force of the torsion spring 13. The urging force of the torsion spring 13 acting on the movable conductor 8 will be described later. Due to the biasing force acting on the other end side, the entire movable conductor 8 is lifted, the movable contact 81 provided on the one end side is separated from the fixed contact 61, and the back surface side of the movable contact 81 is the protrusion piece 307. The state is in contact with the lower surface. Thus, in the off state, the movable conductor 8 is movable even when the movable conductor 8 performs a snap action operation, as will be described later, because the back surface side of the movable contact 81 contacts the lower surface of the protruding piece 307. The movement of the one end side portion of the conductor 8 beyond a certain position can be restricted, and a stable operation can be ensured.

  On the other hand, in the space above the inner case 3, the electromagnet 10 is accommodated in the accommodating portion 301 of the inner case 3. The electromagnet 10 is positioned in the housing portion 301 in a state in which the protruding portion 1001e of the bracket 1001b is engaged with the opening 304a of the inner case 3. The drive member 11 is placed on the movable conductor 8 in a state where the arm portion 1102 is accommodated in the guide portion 305 of the inner case 3. When moving up and down, the drive member 11 is guided by the guide portion 305 of the inner case 3. The operation between the operating body and the movable conductor via the drive member can be smoothly transmitted. In the driving member 11, the protruding piece 1102 a of the arm part 1102 is placed on the holding part 803. Since the pair of arm portions 1102 is placed on the holding portion 803 that is provided on the other end side of the movable conductor 8 with the engaging portion 802 interposed therebetween, the balance is accompanied by the swinging motion of the operation body 4. The movable conductor 8 is pushed down well, and the urging force acting on the movable conductor 8 can be appropriately transmitted to the drive member 11.

  As described above, in the switch device 1 according to the present embodiment, the fixed contact terminal 6 provided with the fixed contact 61 by the bottom surface portion of the inner case 3, the space in which the movable conductor 8 and the fixed terminal 7 are disposed, Since the space in which the electromagnet 10 and the operating body 4 are disposed can be separated, the space utilization efficiency in the outer case 2 can be increased. Further, since the contact mechanism is disposed on the lower side of the inner case 3, the contact mechanism can be disposed apart from the operation body 4 that receives an operation from the operator, and thus safety can be improved. In particular, since the partition wall that partitions the storage unit 201 is configured as a part of the inner case 3, the space utilization efficiency in the outer case 2 can be improved while reducing the number of parts of the switch device 1. It has become.

  The operating body 4 is attached to the outer case 2 with the rib 404 in contact with the contact piece 1103 of the drive member 11. The operation body 4 is configured to be able to accommodate a part of the electromagnet 10 in a space below the operation portion 401 (a space on which the rib 404 is not provided) when attached to the outer case 2. In this case, the head portion 1002a of the iron core 1002 protruding rightward from the bracket 1001b is disposed to face the magnet 9 held by the holding portion 402 of the operating body 4.

  Here, the urging force that acts on the movable conductor 8 by the torsion spring 13 will be described with reference to FIGS. 10 to 12 are side sectional views of the switch device 1 according to the present embodiment. In addition, in FIG. 10, it has shown about the switch apparatus 1 of an OFF state. FIG. 11 shows the switch device 1 in the process of switching from the off state to the on state. FIG. 12 shows the switch device 1 in the on state. 10 to 12 show a cross section in the central portion in the short direction of the switch device 1.

  As described above, in the torsion spring 13, the locking piece 13 a is locked to the locking portion 701 of the fixed terminal 7, and the locking piece 13 b is locked to the locking portion 802 of the movable conductor 8. The stop pieces 13a and 13b are held in a state of being pressed and narrowed. In this case, in the torsion spring 13, a force that spreads the locking pieces 13a and 13b acts on the torsion spring 13, and the direction of the force connects the center of the locking piece 13a and the center of the locking piece 13b. It is along the linear direction (straight line A shown in FIGS. 10 to 12).

  In the switch device 1 according to the present embodiment, as shown in FIGS. 10 to 12, the straight line A connecting the locking pieces 13 a and 13 b is the state of the switch device 1 (off state, on state, and switching state between both). Regardless of the), the locking piece 13b side is designed to face upward from the horizontal direction. In this case, the locking piece 13a is locked by the locking portion 701 of the fixed terminal 7 and cannot move. For this reason, the biasing force in the torsion spring 13 includes a component that always biases the locking piece 13b upward. As a result, a biasing force that always moves the other end side upward acts on the movable conductor 8 that has locked the locking piece 13b.

  As described above, in the switch device 1 according to the present embodiment, the locking portion 701 is provided at a part of the fixed terminal 7, while the locking portion 802 is provided at a part of the movable conductor 8. Since the position of the locking piece 13b locked to 802 is arranged at a position higher than the position of the locking piece 13a locked to the locking portion 701, the biasing force of the torsion spring 13 is engaged. Since it can concentrate on the stop piece 13b side, the urging | biasing force always urged | biased upward can be made to act on the other end side of the movable conductor 8 with a simple structure. In particular, since the locking piece 13a of the torsion spring 13 is locked to a part of the fixed terminal 7 made of a metal plate material, adverse effects due to thermal deformation and the like can be reduced. The locking piece 13a of the spring 13 can be locked.

  Next, the operation in the switch device 1 according to the present embodiment will be described with reference to FIGS. In the off state shown in FIG. 10, the other end side of the movable conductor 8 is lifted by the urging force of the torsion spring 13, and the driving member 11 placed on the holding portion 803 is also lifted. In the drive member 11, the contact piece 1103 is in a state where the right side portion of the operation body 4 is lifted via the rib 404. In this case, the magnet 9 held by the holding portion 402 of the operating body 4 is in a state of being separated from the head portion 1002 a of the iron core 1002. Further, the movable conductor 8 is lifted up entirely by the urging force of the torsion spring 13, and the urging force that urges the one end side in the direction opposite to the fixed contact 61 (upward side) acts. It has become a state.

  When the operation (swinging operation) of pushing down the right side portion of the operating body 4 is received from the off state shown in FIG. 10, the movable conductor 8 is pushed down against the biasing force of the torsion spring 13 via the drive member 11. It is done. In this case, as shown in FIG. 11, the movable conductor 8 moves downward as a whole while maintaining the state where the movable contact 81 and the fixed contact 61 are separated. When the movable conductor 8 moves to a certain position, for example, the position of the locking piece 13b of the torsion spring 13 is lower than the position of the bent portion 14c of the support arm 14 (the locking portion 702 of the fixed terminal 7). The direction of the urging force of the torsion spring 13 acting on one end side of the movable conductor 8 is reversed to the fixed contact 61 side (downward side) at the time when the process proceeds to. Thereby, the one end side of the movable conductor 8 is self-propelled to the fixed contact 61 side, abuts on the movable contact 81 and the fixed contact 61, and is switched on (snap action operation). As described above, in the switch device 1 according to the present embodiment, the ON state / OFF state can be quickly switched in accordance with the swinging operation of the operating body 4, so that the reliability can be improved.

  In addition, in FIG. 11, the state of the switch apparatus 1 just before the one end side of the movable conductor 8 self-runs is shown, and in FIG. 12, the one end side of the movable conductor 8 self-runs of the switch apparatus 1 Indicates the state. Here, a case where the direction of the urging force of the torsion spring 13 is reversed at the time when the position of the locking piece 13b of the torsion spring 13 proceeds downward from the position of the bent portion 14c of the support arm 14 will be described. However, the timing at which the urging force reverses is not limited to this, and is determined by the positional relationship between the locking piece 13b of the torsion spring 13 and the bent portion 14c of the support arm 14.

  In the on state shown in FIG. 12, the right side portion of the operating body 4 is pushed down. The magnet 9 held by the holding portion 402 of the operating body 4 is in contact with the head portion 1002a of the iron core 1002. In the switching device 1 according to the present embodiment, the ON state in which the movable contact 81 and the fixed contact 61 are in contact with each other is maintained, and the OFF state in which the movable contact 81 and the fixed contact 61 are separated from the ON state. In order to automatically switch to the state, the energization state of the coil 1003 of the electromagnet 10 is controlled.

  In order to maintain the ON state, the attractive force with respect to the head portion 1002a of the iron core 1002 of the magnet 9 is used. That is, by setting the attraction force of the magnet 9 (arrow G shown in FIG. 12) to be larger than the biasing force of the torsion spring 13 (arrow F shown in FIG. 12), the operating body 4 and the drive member 11 are set. In addition, the movable conductor 8 can be maintained in the state shown in FIG. 12, and the state where the movable contact 81 and the fixed contact 61 are in contact (on state) can be maintained.

  On the other hand, when automatically switching from the on state to the off state, the electromagnet 10 energizes the coil 1003 so that the attracting state of the magnet 9 to the head portion 1002a is released. For example, the coil 1003 is energized so that a magnetic field in the direction opposite to the direction of the magnetic flux of the magnet 9 is generated. More specifically, the urging force (arrow F shown in FIG. 12) of the torsion spring 13 is caused by the repulsive force (arrow H shown in FIG. 12) due to the magnetic field of the coil 1003, so that the attractive force between the electromagnet 10 and the magnet 9 is obtained. The coil 1003 is energized so as to exceed (the arrow G shown in FIG. 12). By energizing in this way, the other end side of the movable conductor 8 is lifted according to the biasing force of the torsion spring 13, the entire movable conductor 8 moves upward, and the movable contact 81 is moved from the fixed contact 61. It is switched to a separated state (off state).

  As described above, according to the switch device 1 according to the present embodiment, the torsion spring 13 that always applies an urging force upward to the other end side of the movable conductor 8 provided with the movable contact 81 on one end side. And a predetermined contact state (an off state in which the movable contact 81 is separated from the fixed contact 61) can be made using the biasing force of the torsion spring 13, and the operation function of the movable contact 81 and the predetermined contact state A single biasing member (torsion spring 13) can be provided with the function of returning to the original position. In addition, since the single torsion spring 13 can have a plurality of functions, the number of parts in the apparatus can be reduced, and the assemblability can be improved. As a result, it is possible to provide the single biasing member (torsion spring 13) with the function of operating the movable contact 81 and the function of returning to a predetermined contact state, and to provide the switch device 1 with good assemblability. Is possible.

  In particular, in the switch device 1 according to the present embodiment, the magnet 9 held in the holding portion 402 of the operating body 4 is held on the iron core 1002 of the electromagnet 10 to hold the on state. Accordingly, since the ON state can be maintained by using the attractive force of the magnet 9 with respect to the electromagnet 10, the switch device 1 with low power consumption that does not always need to energize the electromagnet 10 (coil 1003) is provided. Is possible.

  The present invention is not limited to the above-described embodiment, and can be implemented with various modifications. In the above-described embodiment, the size, shape, and the like illustrated in the accompanying drawings are not limited thereto, and can be appropriately changed within a range in which the effect of the present invention is exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

  For example, in the above-described embodiment, the magnet 9 is held in the holding portion 402 of the operation body 4, and the on state is held by the attractive force of the magnet 9, while the electromagnet 10 is controlled by controlling the energization state. The case of switching to a state is described. However, the mode in which the switch device 1 according to the present invention maintains the ON state and switches to the OFF state is not limited to this, and can be changed as appropriate. For example, a soft magnetic material such as iron can be used instead of the magnet 9. In this case, in the on state, the coil 1003 is energized so that the soft magnetic body is attracted to the head portion 1002a of the iron core 1002. On the other hand, when switching to the off state, the attraction state with the soft magnetic body is The energization state to the coil 1003 may be switched so as to be solved, or the energization state to the coil 1003 may be switched so that the attractive force between the electromagnet and the soft magnetic material is lower than the energizing force of the energizing member. . In this way, when the soft magnetic material is used, the material cost can be reduced as compared with the case where the magnet 9 holds the on state, and the manufacturing cost of the switch device 1 can be reduced.

  Further, in the above embodiment, the case where the guide portion 305 for guiding the vertical movement of the drive member 11 is provided in a part of the side wall portion of the inner case 3 has been described. However, the components provided with the guide portions for guiding the vertical movement of the drive member 11 are not limited to this. For example, a guide part having the same function as the guide part 305 may be provided on the inner wall surface of the outer case 2.

1 Swing operation type switch device (switch device)
2 Outer case 201 Storage part 202 Side wall part 203 Hole 207 Wall part 209 Wall part 210 Slit 3 Inner case 301, 302 Accommodation part 303 Side wall part 304 Fixed piece 304a Opening part 305 Guide part 306a, 306b Slit 307 Projection piece 4 Operation body 401 Operation part 402 Holding part 402a, 402b Plate-like part 402c Opening part 402d Side wall part 402e Protruding piece 403 Shaft part 404 Rib 5 Insulating base 501 Protruding part 502 Inclined surface part 503, 504 Slit 6 Fixed contact terminal 61 Fixed contact 7 Fixed terminal 701 , 702 Locking portion 703 Inclined portion 8 Movable conductor 81 Movable contact 801, 802 Locking portion 803 Holding portion 804 Claw portion 9 Magnet 10 Electromagnet 1001c Coil holder 1001d Hole 1001e Protruding portion 1001f Slit 1002 Iron core 002a head portion 1003 coil 1004 yoke 11 drive member 1101 base 1102 arms 1103 engaging piece 12 energizing terminal 13 torsion spring 13a, 13b engaging pieces 14 support arm 14a, 14b engaging piece 14c bent portion

Claims (15)

An operating body having an operating portion exposed to be swingable at an opening of the case, a fixed contact and a fixed terminal provided in a separated state in the case, and electrically connected to the fixed terminal and swinging the operating body A movable conductor provided on one end side with a contact portion that contacts and separates from the fixed contact with the operation, an urging member that constantly applies an urging force to the other end side of the movable conductor, and the movable A drive member disposed between the other end side of the conductor and the operating body and vertically moving with the swinging motion of the operating body; a magnetic member provided integrally with the operating body; An electromagnet capable of attracting the magnetic member according to the state,
In the ON state in which the contact portion is in contact with the fixed contact, the operating body is swung to one side by suction between the electromagnet and the magnetic member against the urging force of the urging member. On the other hand, when the contact portion is in the off state separated from the fixed contact, the energization state of the electromagnet is switched so that the attraction state of the electromagnet and the magnetic member is released, and the A swing operation type switching device characterized in that the other end side of the movable conductor is raised by the biasing force of the biasing member, and the operating body is swung to the other side via the drive member.   One end side of the biasing member is locked to a first locking portion provided to protrude from the inner bottom portion of the case, and the other end side is provided to a part of the other end side of the movable conductor. The position of the other end side latched by the said 2nd latching | locking part is comprised by the torsion spring latched by this latching | locking part, and the position of the one end side latched by the said 1st latching | locking part 2. The swing operation type switch device according to claim 1, wherein the swing operation type switch device is arranged at a position above the position.   The swing operation type switch device according to claim 2, wherein the first locking portion is provided at a part of the fixed terminal provided at an inner bottom portion of the case.   A partition is provided in the case, and the fixed contact, the movable conductor, and the fixed terminal are disposed below the partition, while the electromagnet and the operation body are disposed above the partition. The swing operation type switch device according to any one of claims 1 to 3, characterized in that:   5. The swing operation type switch device according to claim 4, wherein the partition wall is housed inside the case and comprises a part of an inner case for positioning the drive member and the electromagnet.   A partition wall is provided on the inner bottom surface of the case to divide a space in which a terminal for energizing the electromagnet is disposed from a space in which the fixed contact, the movable conductor, and the fixed terminal are disposed. The swing operation type switch device according to claim 5.   The swing operation type switch device according to claim 5 or 6, wherein a guide portion for guiding the driving member is provided on an inner wall portion of the case or a part of a side wall portion of the inner case.   The said drive member has a pair of arm part mounted in the holding | maintenance part provided on both sides of the said 2nd latching | locking part on the other end side of the said movable conductor. Item 8. The swing operation type switch device according to any one of Items 7.   The swing operation type switch device according to any one of claims 1 to 8, wherein the magnetic member is composed of a magnet.   The swing operation type switch device according to any one of claims 1 to 8, wherein the magnetic member is made of a soft magnetic material.   The swing operation type switch device according to claim 9 or 10, wherein the operation body is provided with a protection portion for protecting the magnet or the soft magnetic body.   A support member that rotatably supports one end side with the other end side of the movable conductor as a rotation fulcrum; the support member is a third locking portion provided at one end side of a part of the fixed terminal; The other end side is latched by the 4th latching | locking part provided in a part of one end side of the said movable conductor, The one in any one of Claims 1-11 characterized by the above-mentioned. Swing operation type switch device.   13. The swing operation type switch device according to claim 12, wherein the movable conductor performs a snap action operation in accordance with the swing operation of the operation body.   14. The swing operation type switch according to claim 13, wherein a stopper portion is provided on the lower surface portion of the inner case to restrict the upward movement from a certain position on one end side of the movable conductor. apparatus.   The swing operation type switch device according to any one of claims 12 to 14, wherein the support member forms a conductive path between the movable conductor and the fixed terminal.

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