JP6128955B2 - Switching device - Google Patents

Description

  The present invention relates to a switching device used for in-vehicle electrical equipment and the like, and more particularly to a switching device having a structure with improved dust resistance.

  A dual-type switching device is used for a drive switch of an in-vehicle power window device and a switch part of other in-vehicle electrical equipment.

  In the switching device described in Patent Document 1, two contact housing spaces are formed in the case. In each contact storage space, a fixed contact member fixed to the bottom, a conductive plate serving as a movable contact, a sliding operation portion of a driving body, and a leaf spring member that presses the sliding operation portion against the movable contact are stored. Has been.

  In the case, a slit is formed between the partition walls inside the respective contact storage spaces, and a support recess for communicating the contact storage space and the slit is formed in the partition wall. Each drive body is formed with a pressed portion together with the sliding operation portion. A part of the driving body is located inside the support recess, and the pressed part is located in the slit.

  In Patent Document 1, a cover member formed of a leaf spring material is mounted on a case, and both the two contact storage spaces and the slit formed between adjacent contact storage spaces are one cover member. Covered. Two pressed parts are located in the slit, and the two pressed parts protrude upward from a window hole formed in the cover member.

  In the electrical equipment using the switching device described in Patent Document 1, the operating end of the operation knob is interposed between two pressed parts protruding above the cover member. When the operation knob is tilted to one side, one driver is rotated to switch the contact between the fixed contact portion in one contact storage space and the conductor plate, and the operation knob is tilted to the other side. Then, the other driving body is rotated to switch the contact between the fixed contact portion in the other contact storage space and the conductor plate.

JP-A-2005-123135

  In the switching device described in Patent Literature 1, each contact storage space formed in the case and the slit communicate with each other through a support recess. Since the drive body is supported in the support recess so as to be rotatable and movable up and down, a large gap is formed between the inner edge of the support recess and the drive body, and each contact housing part is sufficiently sealed. is not.

  In the device described in Patent Document 1, since the driving body is for switching the conductive plate by the rotation operation and the vertical operation, the operation load of the driving body when the conductive plate is operated is relatively large. Further, when the conductor plate is switched, the driving body rotates and moves up and down, so that an additional space is required for the apparatus.

  Further, above the slit, a window hole is formed in the cover member, and the pressed portion of the driving body protrudes upward from the window hole, but since the driving body rotates, there is a gap between the window hole and the pressed portion. It is necessary to form a large gap between them. As a result, dust, dirt and moisture in the passenger compartment can easily enter the slit through the window hole of the cover member, and dust can easily enter the inside of the contact housing from the slit through the support recess. There was a problem of lowering the reliability of contact switching.

  The present invention solves the above-described conventional problems, can improve the sealing performance in the storage space, can improve the reliability of the contact switching operation in the storage space, and is relatively low. It is an object of the present invention to provide a switching device that can perform a switching operation with a load and can further reduce the vertical arrangement space.

The present invention is such that the opposing wall portion that rises from the bottom portion and faces each other and the side wall portion that rises from the bottom portion by connecting both ends of each of the opposing wall portions are integrally formed on the case. A storage chamber surrounded by a portion, the side wall portion and the bottom portion and having an opening on the upper side, and a fixed contact and a movable contact are stored in the storage chamber,
In the storage chamber, a slider is supported in parallel with the bottom portion so as to be movable from an initial posture to a switching posture, and a support recess that is released upward is formed in one of the opposing wall portions. An operating portion that protrudes outward from the support recess is formed on the slider, the pressing member is supported by the slider so as to be movable in a direction intersecting the moving direction of the slider, and the pressing member is supported by a spring member. It is pressed against the movable contact,
When the slider moves to the switching posture, the pressing member rides on the movable contact, the contact between the movable contact and the fixed contact is switched, and the spring member is deformed by the pressing member , The slider is given a return force to the initial position ,
The slider is integrally formed with a closing plate portion that moves along the opposing wall portion while covering the supporting recess while moving from the initial posture to the switching posture, and the operation portion is provided on the closing plate portion. Formed,
The slider is further provided with an opposing moving portion facing the closing plate portion, and the spring member is disposed between the closing plate portion and the opposing moving portion .

  In the present invention, the slider moves along the bottom in the storage chamber, and the movable contact is switched by the pressing member supported by the slider. For this reason, it is not necessary to form the supporting recesses provided in the opposing wall portion so as to be long in the vertical direction, and it is difficult for dust, dust, and moisture to enter the storage chamber.

  Further, since the contact between the movable contact and the fixed contact can be switched only by moving the slider along the bottom in the horizontal direction, the contact can be switched with a relatively light load. Furthermore, it is not necessary to secure a wide movement region in the vertical direction above the case, and it is easy to configure a thin shape.

Moreover , since the support recessed part of a slider is always covered with the closing board part, the sealing degree of a storage chamber can further be improved.

Further , the spring member can be arranged in a stable posture in the storage chamber.

Further, it is preferable that a sliding projection is integrally formed on the upper end portion of the slider, and the sliding projection slides on the inner surface of the lid that covers the opening .

  In the above configuration, since the sliding protrusion formed on the slider slides on the lid, the slider can be moved smoothly without causing ups and downs.

In the present invention, a pair of inner facing wall portions facing each other as the facing wall portion and an outer facing wall portion facing the outside of each inner facing wall portion are integrally formed in the case,
Each of the inner facing wall portion, the outer facing wall portion, the side wall portion, and the operation space formed between the two opposing storage chambers surrounded by the bottom portion and the bottom portion, and an opening portion formed above, and the inner facing wall portion. The stationary contact, the movable contact, the slider, the pressing member, and the spring member are accommodated in each storage chamber, and the opening of each storage chamber is covered with the lid. And
The supporting concave portion is formed in the inner facing wall portion, and the operation portions provided on the two sliders are opposed to each other with an interval in the operation space, and the two sliders move toward a switching posture. The directions are opposite to each other.

Alternatively, in the present invention, two sets of the fixed contact, the movable contact, the slider, the pressing member, and the spring member are stored in one storage chamber.
The supporting concave portion is formed in the two opposing wall portions facing each other, and the two operation portions protrude in opposite directions from the respective opposing wall portions.

In the above, the storage chamber is provided with an intermediate wall part between the two opposing wall parts, and each slider is provided with an opposing moving part facing the closing plate part, and the two sliders It is possible that the opposite moving part is supported movably on the common intermediate wall part.
In the above configuration, the width of the case can be made as small as possible.

  In the switching device according to the present invention, the support recess formed in the opposing wall portion extends in the horizontal direction and does not need to be extended vertically. Therefore, dust, dust, or moisture enters the storage chamber through the support recess. It becomes difficult to do.

  Since the slider is moved only in the horizontal direction by the operating force, the movable contact can be reliably operated with a relatively low load. Further, since the slider moves horizontally, it is not necessary to provide a moving space above the case, and the structure can be reduced.

The perspective view of the switching apparatus of the 1st Embodiment of this invention, The disassembled perspective view of the switching apparatus of 1st Embodiment, Sectional drawing which cut | disconnected the switching apparatus of FIG. 1 by the III-III line, Sectional drawing which cut | disconnected the switching apparatus of FIG. 1 by the IV-IV line, Sectional drawing which cut | disconnected the switching apparatus of FIG. 1 by the VV line, FIG. 5 is an operation explanatory diagram in the same cross-sectional view as FIG. The perspective view of the switching apparatus of the 2nd Embodiment of this invention, Sectional drawing which cut | disconnected the switching apparatus of FIG. 7 by the VIII-VIII line, The fragmentary perspective view which shows the combination state of the slider and press member of 2nd Embodiment,

The switching device 10 according to the first embodiment shown in FIGS. 1 to 6 is used for opening and closing an in-vehicle power window device. In addition, the switching device 10 can be used as a detection switch or a switching switch for various electrical equipment other than the in-vehicle power window device.
In each figure, the X direction is the front-rear direction, the Y direction is the left-right direction, and the Z direction is the up-down direction.

  The switching device 10 has a case 11. The case 11 is injection-molded with an insulating synthetic resin material.

  As shown in FIGS. 3 and 4, the case 11 has a bottom portion 12. As shown in FIG. 2, the case 11 includes a first inner facing wall portion 13 a and a second inner facing wall portion 13 b that rise vertically from the bottom portion 12, a first outer facing wall portion 14 a and a second outer side. The opposing wall portion 14b, and the side wall portion 15a and the side wall portion 15b are integrally formed.

  The first inner facing wall portion 13a and the second inner facing wall portion 13b face each other in the front-rear direction (X direction), and the first outer facing wall portion 14a is the outer side in the front-rear direction of the first inner facing wall portion 13a. The second outer facing wall portion 14b faces the outer side in the front-rear direction of the second inner facing wall portion 13b. The side wall portions 15a and 15b are formed in a direction orthogonal to the inner facing wall portions 13a and 13b and the outer facing wall portions 14a and 14b, and are opposed to each other with an interval in the left-right direction (Y direction).

  The case 11 is formed with a first storage chamber S1 surrounded by the first inner facing wall portion 13a, the first outer facing wall portion 14a, and the side wall portions 15a and 15b and closed at the bottom portion by the bottom portion 12. Has been. Further, a second storage chamber S2 is formed which is surrounded by the second inner facing wall portion 13b, the second outer facing wall portion 14b, and the side wall portions 15a and 15b and whose lower portion is closed by the bottom portion 12. . The first storage chamber S1 and the second storage chamber S2 are both open openings.

  In the case 11, an operation space S3 is formed between the first inner facing wall portion 13a and the second inner facing wall portion 13b. The operation space S3 is a space elongated in the left-right direction (Y direction). In the embodiment shown in FIG. 2, both side portions in the left-right direction of the operation space S3 are released, but both side portions in the left-right direction (Y direction) of the operation space S3 are closed by the side walls 15a, 15b. Also good.

  1 and 2 show a case center line O extending vertically from the center of the bottom portion 12 in the vertical direction (Z direction). The case 11 coincides with the shape rotated 180 degrees around the case center line O. That is, the structures and dimensions of the first storage chamber S1 and the second storage chamber S2 and the structure and dimensions of the operation space S3 are 180 degrees rotationally symmetric with respect to the case center line O. Furthermore, all the structures of the switching device 10 are also 180 degrees rotationally symmetric about the case center line O.

  As shown in FIG. 2, a first support recess 16a is formed in the first inner facing wall portion 13a, and a second support recess 16b is formed in the second inner facing wall portion 13b. A first counter support portion 17a is formed on the first outer counter wall portion 14a, and a second counter support portion 17b is formed on the second outer counter wall portion 14b.

  The first support recess 16a penetrates the first inner facing wall 13a in the front-rear direction (X direction), and the second support recess 16b penetrates the second inner facing wall 13b in the front-rear direction (X direction). The first support recess 16a and the second support recess 16b are released upward. The first opposing support portion 17a penetrates the first outer opposing wall portion 14a in the front-rear direction (X direction), and the second opposing support portion 17b passes through the second outer opposing wall portion 14b in the front-rear direction (X direction). The first opposing support portion 17a and the second opposing support portion 17b are released upward. However, the first opposing support portion 17a has a groove shape extending in the vertical direction with a step on the inner surface facing the first storage chamber S1 without penetrating the first outer opposing wall portion 14a. Also good. This is the same also in the 2nd opposing support part 17b.

  As shown in FIG. 2, the first support recess 16a and the first counter support portion 17a are formed on the side close to the one side wall portion 15a, and the second support recess 16b and the second counter support portion are formed. 17b is formed on the side close to the other side wall 15b.

  FIG. 5 is a cross-sectional view taken along the line VV in FIG. 1 and shows the internal structure of the first storage chamber S1. In the first storage chamber S <b> 1, three fixed contacts are fixed to the bottom 12. The first common fixed contact 31a is fixed at the center in the left-right direction (Y direction), the first initial contact fixed contact 32a is fixed on the side close to the side wall 15b, and the first switching is performed on the side close to the side wall 15a. The fixed contact 33a is fixed.

  The second storage chamber S2 and the first storage chamber S1 have a rotationally symmetrical structure with the case center line O as the center. Therefore, as shown in FIGS. 1 and 2, in the second storage portion S2, the second common fixed contact 31b is fixed at the center, and the second initial contact fixed contact 32b is fixed on the side close to the side wall portion 15a. A second switching fixed contact 33b is fixed on the side close to the side wall 15b.

  As shown in FIG. 5, the movable contact 35 is stored in the first storage chamber S1. The movable contact 35 is formed of a conductive plate material such as a copper plate. The movable contact 35 accommodated in the first storage chamber S1 has an initial contact piece 35a facing the initial contact fixed contact 32a and a switching contact piece 35b facing the switching fixed contact 33a, and a landing portion is provided in the middle thereof. 35c is formed to protrude upward. The riding-up portion 35c faces the side closer to the switching fixed contact 33a than the common fixed contact 31a.

  The second storage chamber S2 also stores the same movable contact 35 as the first storage chamber S1. The movable contact 35 accommodated in the second storage chamber S2 is arranged in the left-right direction (Y direction) opposite to that of the movable contact 35 accommodated in the first storage chamber S1. In the movable contact 35 stored in the second storage chamber S2, the initial contact piece 35a is directed to the side wall portion 15a, and the switching contact piece 35b is directed to the side wall portion 15b.

  As shown in FIG. 3, the first slider 40a is stored in the first storage chamber S1 of the case 11, and the second slider 40b is stored in the second storage chamber S2. The first slider 40a and the second slider 40b are made of a synthetic resin material and have the same structure and the same dimensions, but the mounting posture in the case 11 is 180 degrees centered on the case center line O. Is rotationally symmetric. Therefore, hereinafter, the first slider 40a and the second slider 40b will be described with different reference numerals.

  As shown in FIGS. 2 and 3, the first slider 40 a is formed with an operation side moving part 41 a and a counter moving part 42 a at an interval in the front-rear direction (X direction). 41a and the opposing movement part 42a are connected by the connection movement part 43a. A closing plate portion 45a is formed integrally with the operation side moving portion 41a, and an operation portion 46a is formed to protrude from the outer surface of the closing plate portion 45a. Further, a pair of sliding protrusions 47a and 47a are integrally formed at the upper end of the operation side moving part 41a, and sliding protrusions 48a and 48a are integrally formed at the upper end of the opposing moving part 42a.

  As shown in FIG. 5, a support hole 44a penetrating vertically is formed in the connecting and moving part 43a.

  The operation side moving part 41a is formed to have a width dimension in the left-right direction (Y direction) smaller than that of the first support recess 16a formed in the case 11, and a height dimension in the Z direction is equal to that of the first support recess 16a. It is formed to have the same depth as that in the vertical direction (Z direction).

  The closing plate portion 45a is formed to protrude in the left-right direction (Y direction) longer than the operation side moving portion 41a, and is formed to protrude downward from the operation side moving portion 41a. The closing plate portion 45a is a first plate. It is formed in an area wider than the support recess 16a.

  The opposing moving part 42a is formed with a width dimension in the left-right direction (Y direction) smaller than that of the first opposing support part 17a, and a height dimension in the Z direction is the vertical direction (Z direction) of the first opposing support part 17a. ) Is formed in the same depth dimension.

  Similarly, the second slider 40b slides on the operating side moving part 41b, the opposing moving part 42b, the connecting moving part 43b, the support hole 44b, the closing plate part 45b, the operating part 46b, and the sliding protrusions 47b and 47b. The protrusions 48b and 48b are integrally formed.

  A first pressing member 51 a and a second pressing member 51 b are accommodated in the case 11. The first pressing member 51a and the second pressing member 50b have the same shape and dimensions. As shown in FIGS. 5 and 6, the first pressing member 51a is supported so as to be slidable up and down in a support hole 44a formed in the first slider 40a, and the second pressing member 51b is The second slider 40b is supported so as to be vertically slidable in a support hole 44b formed in the second slider 40b.

  As shown in FIG. 2, spring members 55 having the same structure and the same dimensions are mounted on the first storage chamber S1 and the second storage chamber S2 from above. Each spring member 55 is made of a leaf spring material, and a pressing elastic piece 56 and supporting elastic pieces 57 and 57 bent upward from the left and right ends of the pressing elastic piece 56 are integrally formed. Has been.

  A lid 60 is attached to the case 11. The first storage chamber S1, the second storage chamber S2, and the operation space S3 of the case 11 are covered with one lid 60. The lid 60 is made of a synthetic resin material.

  As shown in FIG. 2, the lid 60 includes a ceiling plate portion 61, front and rear side plate portions 62 and 62 facing in the front and rear direction (X direction), and left and right side plate portions 63 and 63 facing in the left and right direction (Y direction). Are integrally formed. Retaining holes 63a and 63a are formed in the left and right plate parts 63 and 63, respectively. As shown in FIG. 2, latching protrusions 15c and 15c facing the latching holes 63a and 63a are integrally formed on the outer surfaces of the side wall portions 15a and 15b of the case 11.

An opening 64 that is elongated in the left-right direction (Y direction) is formed at the center of the ceiling plate portion 61 of the lid 60. As shown in FIG. 3, inner wall portions 65 a and 65 b that integrally extend downward from both edge portions of the opening portion 64 that extend in the left-right direction (Y direction) are integrally formed inside the lid body 60. . As shown in FIG. 4, each inner wall portion 65a, 65b has a notch 66 formed in the moving region of the operation portion 46a.
The switching device 10 composed of the above members is assembled as follows.

  After the movable contacts 35, 35 are inserted into the first storage chamber S1 and the second storage chamber S2, the first slider 40a and the second slider 40b are mounted on the case 11 downward from above. .

  FIG. 3 shows a state where the first slider 40a is attached to the case 11. When the first slider 40a is mounted downward with respect to the case 11, the operation side moving portion 41a is mounted in the first support recess 16a formed in the first inner facing wall portion 13a and is opposed to the case 11. The moving part 42a is mounted in a first opposing support part 17a formed on the first outer opposing wall part 14a. Moreover, the closing plate part 45a is attached to the outer surface facing the operation space S3 of the first inner facing wall part 13a.

  Similarly, the second slider 40 b is also attached to the case 11. However, the mounting posture of the first slider 40a and the second slider 40b is 180-degree rotational symmetry about the case center line O.

  After the movable contact 35, the first slider 40a, and the second slider 40b are mounted on the case 11, the spring members 55 and 55 are inserted into the first storage chamber S1 and the second storage chamber S2. A lid 60 is attached to the opening above the case 11.

  The first outer facing wall portion 14a and the second outer facing wall portion 14b of the case 11 are covered from the outside by the front and rear side plate portions 62, 62 of the lid 60, and the side wall portion of the case 11 is covered by the left and right side plate portions 63, 63. 15a and 15b are covered from the outside. And the latching hole 63a of the cover body 60 is latched by the latching protrusion 15c of the case 11, and the cover body 60 is fixed.

  As shown in FIG. 3, when the lid 60 is attached, the front and rear side plate portions 62 of the lid 60 face the outside of the opposed moving portion 42a of the first slider 40a. Further, the inner wall portion 65a formed on the lid body 60 faces the outside of the closing plate portion 45a, and the operation portion 46a is located in the notch portion 66 formed on the inner wall portion 65a. As a result, the first slider 40a is held in the first storage chamber S1 so as not to rattle in the front-rear direction (X direction).

  As shown in FIG. 3, sliding protrusions 47a and 47a formed on the upper end of the operation side moving part 41a of the first slider 40a and sliding protrusions 48a and 48a formed on the upper end part of the opposing moving part 42a are provided. The first slider 40a is positioned so as to face the lower surface of the ceiling plate portion 61 of the lid 60 so as not to rattle up and down.

  In this state, the first slider 40a can move in the left-right direction (Y direction) from the initial posture shown in FIG. 5 to the switching posture shown in FIG. In the first slider 40a, the sliding protrusions 47a and 47a and the sliding protrusions 48a and 48a slide on the lower surface of the ceiling plate portion 61 of the lid body 60. Therefore, the first slider 40a moves in the case 11 with a low load. can do.

  Since the first outer support portion 17a is covered from the outside by the front and rear side plate portions 62 of the lid body 60, there is a gap due to the movement between the first opposed support portion 17a and the opposed moving portion 42a of the first slider 40a. The front and rear side plate portions 62 are closed.

  The closing plate portion 45a of the first slider 40a has a sufficiently larger area than the first support recess 16a, and the first slider 40a moves while moving from the initial posture to the switching posture. The gap for movement formed between the support recess 16a and the operation side moving part 41a is always closed by the closing plate part 45a. Therefore, as shown in FIGS. 3 and 4, even if the notch 66 is formed in the inner wall 65a of the lid 60, the first storage chamber S1 and the operation space S3 do not communicate with each other. The sealing degree of one storage chamber S1 can be increased.

  The switching device 10 has a 180 degree rotationally symmetric structure around the case center line O. Accordingly, the second slider 40b is similarly supported in the case 11 so as to be slidable in the left-right direction (Y direction).

  As shown in FIG. 5, when the lid 60 is attached to the opening of the case 11, a pair of supporting elasticity of the spring member 55 in the first storage chamber S <b> 1 is formed by the lower surface of the ceiling plate portion 61 of the lid 60. The pieces 57, 57 are pushed downward to be deformed, and the pressing elastic piece 56 of the spring member 55 urges the pressing member 51a supported by the first slider 40a downward, so that the pressing member 51a is a movable contact. 35 is pressurized.

  As shown in FIG. 3, the spring member 55 is disposed between the operation side moving part 41a and the opposing moving part 42a above the connection moving part 43a of the first slider 40a. Therefore, the posture of the spring member 55 is stable, and malfunctions such as the reverse of the spring member 55 during operation are less likely to occur.

  Similarly, in the second storage chamber S2, the spring member 55 is stored in a stable posture, and the pressing elastic piece 56 of the spring member 55 causes the pressing member 51b supported by the second slider 40b to face downward. The pressing member 51 b is pressed against the movable contact 35 by being pressed.

  As shown in FIG. 3, the operation portion 46 a provided on the first slider 40 a passes through a notch 66 formed in the inner wall portion 65 a of the lid 60 and passes between the inner wall portion 65 a and the inner wall portion 65 b. Is located. Similarly, the operation part 46b provided in the second slider 40b is also positioned between the inner wall part 65a and the inner wall part 65b through the notch formed in the inner wall part 65b. As shown in FIG. 4, in the operation space S3, the operation unit 46a and the operation unit 46b are arranged with a space in the left-right direction (Y direction) between the inner wall portion 65a and the inner wall portion 65b.

  In electrical equipment such as an in-vehicle power window device, the case 11 of the switching device 10 is fixed on the base, and the common fixed contacts 31a and 31b, the initial contact fixed contacts 32a and 32b, and the switching fixed contacts 33a and 33b are the base. Soldered and connected to the upper circuit pattern.

  As shown in FIGS. 3 and 4, the switching pressing portion 1 formed integrally with the operation body is inserted into the operation space S <b> 3 of the case 11 through the opening 64 formed in the ceiling plate portion 61 of the lid body 60. The The switching pressing portion 1 is inserted between the inner wall portion 65a and the inner wall portion 65b of the lid body 60 and is positioned between the two operation portions 46a and 46b.

  The operating body has a fulcrum on the upper side and rotates, or reciprocates in the left-right direction (Y direction). In FIG. 4, when the switching pressing portion 1 moves to the left side in the drawing, the operation portion 46a is moved in the α direction, and when the switching pressing portion 1 moves to the right side in the drawing, the operation portion 46b is moved in the β direction.

  When the switching pressing portion 1 is in the neutral position as shown in FIG. 4, the first slider 40a is in the initial position in the first storage chamber S1 of the case 11 as shown in FIG. In the initial posture, the operation side moving part 41a is located on the right side in the figure within the first support recess 16a of the case 11, and the opposing movement part 42a is located on the right side in the figure within the first counter support part 17a.

  When the first slider 40a is in the initial posture, the pressing member 51a is pressed downward by the pressing elastic piece 56 of the spring member 55 to press the movable contact 35 downward. As shown in FIG. 5, since the contact point P1 between the pressing member 51a and the movable contact 35 in the initial posture is located on the right side of the drawing with respect to the first common fixed contact 31a, the initial contact piece of the movable contact 35 is provided. 35a is in contact with the first initial contact fixed contact 32a. Similarly, in the second storage chamber S2, the contact point between the pressing member 51b supported by the second slider 40b in the initial posture and the movable contact 35 is closer to the side wall portion 15a than the second common fixed contact 31b. The initial contact piece 35a of the movable contact 35 is in contact with the second initial contact fixed contact 32b.

  When the switching pressing portion 1 moves to the left in the drawing in FIG. 4 and the operation portion 46a is pushed in the α direction, the operation side moving portion 41a of the first slider 40a moves in the first support recess 16a of the case 11. Slides to the left, the opposing moving part 42a moves to the left in the first opposing supporting part 17a, and as shown in FIG. 6, the first slider 40a moves in the α direction to the switching posture.

  In the switching posture, the pressing member 51a rides on the climbing portion 35c of the movable contact 35, the movable contact 35 rotates counterclockwise with the contact portion with the first common fixed contact 31a as a fulcrum, and the movable contact 35 is switched. The contact piece 35b is brought into contact with the first switching fixed contact 33a.

  Since the pressing member 51a rides on the riding portion 35c, the pressing elastic piece 56 of the spring member 55 is greatly bent upward, and the pressing member 51a is shown in the right direction along the inclined surface of the upper surface of the movable contact 35 by the reaction force. The return force to move to is given. Therefore, when the operating force to the switching pressing portion 1 is released, the first slider 40a returns to the initial posture shown in FIG.

  This is the same when the second slider 40b is moved in the β direction by the switching pressing portion 1.

  The switching slider 1 moves the first slider 40a horizontally in the left direction (α direction) shown in FIG. 4, and the second slider 40b moves horizontally in the right direction (β direction) shown in FIG. Be made. Since the sliders 40a and 40b only move horizontally, the power transmission efficiency from the switching pressing unit 1 to the operation units 46a and 46b is improved, and the contact state of the movable contact 35 can be switched with a low load.

  As for the operation side moving parts 41a and 41b of the sliders 40a and 40b, the lower ends slide on the lower edges of the support recesses 16a and 16b, and the slide protrusions 47a and 47b are the upper ends of the ceiling plate 61 of the lid 60. Slide on the bottom surface. The lower ends of the opposed moving parts 42a and 42b also slide on the lower edges of the opposed support parts 17a and 17b, and the upper sliding protrusions 48a and 48a slide on the lower surface of the ceiling plate 61 of the lid 60. To do. Therefore, the first slider 40a and the second slider 40b can move in the left-right direction (Y direction) with a low load.

A gap between the opposed moving portion 42 a of the first slider 40 a and the first opposed support portion 17 a of the case 11 is covered with the front and rear side plate portions 62 of the lid 60. Moreover, the clearance gap between the operation side moving part 41a and the 1st support recessed part 16a is always obstruct | occluded by the closing board part 45a of an area larger than the 1st support recessed part 16a. Therefore, as shown in FIG. 4, even if there is an overlapping portion between the inner wall portion 65a of the lid 60 and the first support concave portion 16a, the overlapping portion remains closed. Therefore, the sealing performance of the first storage chamber S1 can be improved, and dust, dust, moisture, or the like is difficult to enter the first storage chamber S1.
This also applies to the relationship between the second slider 40b and the case 11.

  Regarding the switching device 110 according to the second embodiment shown in FIG. 7 and subsequent figures, a structure different from that of the switching device 10 according to the first embodiment will be mainly described, and a detailed description of the common structure will be omitted.

  The switching device 110 has a case 111. The case 111 is integrally formed with a bottom portion 112, opposing wall portions 114a and 114b facing in the front-rear direction (X direction), and side wall portions 115a and 115b facing in the left-right direction (Y direction). As shown in FIG. 8, a single storage chamber S <b> 4 with an opening formed above is formed inside the case 111. A first support recess 117a is formed in the opposing wall 114a, and a second support recess 117b is formed in the opposing wall 114b.

  As shown in FIG. 8, an intermediate wall 116 that rises vertically from the bottom 112 is integrally formed in the case 111. The upper end portion of the intermediate wall portion 116 is a counter support portion 118, and the counter support portion 118 extends in the left-right direction (Y direction).

  Inside the case 111, the first common fixed contact 31a, the first initial contact fixed contact 32a and the first switching fixed contact 33a are fixed on one side of the intermediate wall 116 with the intermediate wall 116 interposed therebetween. A second common fixed contact 31b, a second initial contact fixed contact 32b, and a second switching fixed contact 33b are fixed on the other side of the reference numeral 116. Moreover, the movable contact 35 is accommodated in each of the regions on both sides before and after the intermediate wall portion 116 is sandwiched.

  As shown in FIG. 9, the first slider 140a and the second slider 140b have the same structure and the same dimensions, and are combined so as to have a rotational symmetry of 180 degrees about the case center line O. Yes.

  The first slider 140a has a closing plate portion 145a and a connecting / moving portion 143a. A supporting hole 144a is formed in the connecting / moving portion 143a, and the pressing member 51a is supported by the supporting hole 144a so as to be movable up and down. ing. In addition, a pair of opposed moving portions 142a and 142a are provided to face the closing plate portion 145a, and the opposed moving portions 142a and 142a are formed so as to protrude from the connecting moving portion 143a. As shown in FIG. 8, an operation portion 146a is integrally formed on the outer surface of the closing plate portion 145a.

  As shown in FIG. 9, sliding protrusions 147a and 147a are integrally formed on the upper end portion of the closing plate portion 145a, and sliding protrusions 148a and 148a are integrally formed on the upper end portions of the opposed moving portions 142a and 142a. .

  The second slider 140b has a closing plate portion 145b and a connecting / moving portion 143b, and the pressing member 51b is supported in a support hole 144b formed in the connecting / moving portion 143b so as to be slidable up and down. A pair of opposing moving portions 142b and 142b are formed to protrude from the connecting moving portion 143b. Sliding projections 147a and 147a are integrally formed on the upper end portion of the closing plate portion 145b, and sliding projections 148a and 148a are integrally formed on the upper end portions of the opposed moving portions 142b and 142b.

  The first slider 140a and the second slider 140b are combined in a rotationally symmetric manner with respect to the case center line O, as shown in FIG. At this time, the pair of opposed moving parts 142a and 142a of the first slider 140a and the pair of opposed moving parts 142b and 142b of the second slider 140b are alternately combined to form a pair of opposed moving parts 142a and 142a. A pair of opposing moving parts 142b and 142b are arranged in a line along the left-right direction (Y direction).

  As shown in FIG. 8, the closing plate portion 145a of the first slider 140a is supported by the first support concave portion 117a of the opposing wall portion 114a of the case 111, and the closing plate portion 145b of the second slider 140b is opposed to the first slider 140b. It is supported by the support recess 117b of the wall 114b. The opposing moving parts 142a and 142a of the first slider 140a and the opposing moving parts 142b and 142b of the second slider 140b arranged in a line in the Y direction are both opposing support parts at the upper end of the intermediate wall part 116. 118.

  As a result, both the first slider 140a and the second slider 140b can move in the left-right direction (Y direction), and the moving direction is rotationally symmetric about 180 degrees about the case center line O.

  A spring member 55 is installed between the closing plate portion 145a of the first slider 140a and the opposing moving portions 142a, 142a, and a spring is provided between the closing plate portion 145b of the second slider 140a and the opposing moving portions 142b, 142b. The member 55 is installed, and the pressing members 51 a and 51 b are pressed against the movable contact 35 by the respective spring members.

  The lid body 160 is formed by bending a leaf spring material, and includes a ceiling plate portion 161, front and rear side plate portions 162 and 162 bent from the ceiling plate portion 161, and left and right side plate portions 163 and 163. . Latch holes 163a and 163a are formed in the left and right plate portions 163 and 163. The latch holes 163a and 163a are latched by latch projections 115c provided in the case, and the lid body 160 is fixed to the case 111. Is done.

  Notch portions 162a and 162a are formed in the front and rear side plate portions 162 and 162, and operation portions 146a and 146b integrated with the respective sliders 140a and 140b protrude from the notch portions 162a and 162a to the outside.

  In the switching device 110 of the second embodiment, the operation portion 146a protruding from the first outer facing plate portion 114a of the case 111 is moved in the left direction of FIG. 7 by the switching pressing portion, and the facing plate portion 114b. The operating portion 146b protruding from the right is moved in the right direction in FIG. The contact state between the movable contact 35 and the fixed contact is switched by the moving force of the first slider 140a and the second slider 140b.

  The closing plate portions 45a and 45b formed on the respective sliders 140a and 140b have a sufficiently larger area than the cutout portions 162a and 162b of the lid 160, and the sliders 140a and 140b are moved while moving. The notches 162a and 162b are always covered with the closing plate portions 45a and 45b. As a result, the degree of sealing inside the storage room S4 is kept high.

S1 1st storage room S2 2nd storage room S3 Operation space S4 Storage room 1 Switching pressing part 10 Switching device 11 Case 12 Bottom part 13a First inner facing wall part 13b Second inner facing wall part 14a First outer side Opposing wall portion 14b second outer opposing wall portions 15a, 15b side wall portion 16a first support recess portion 16b second support recess portion 17a first counter support portion 17b second counter support portion 31a, 31b common fixed contact 32a, 32b Initial contact fixed contact 33a, 33b Switching fixed contact 35 Movable contact 35a Initial contact piece 35b Switching contact piece 35c Riding part 40a First slider 40b Second slider 41a, 41b Operation side moving part 42a, 42b Opposing moving part 43a, 43b Connection moving part 44a, 44b Support hole 45a, 45b Closing plate part 46a, 46b Operation part 47a, 47b, 48 , 48b Sliding projection 51a, 51b Press member 55 Spring member 56 Press elastic piece 57 Support elastic piece 60 Lid 110 Switching device 111 Case 112 Bottom 114a, 114b Opposite wall 115a, 115b Side plate 116 Intermediate wall 117a, 117b Support Recessed portion 118 Opposing support portion 140a First slider 140b Second slider 142a, 142b Opposing moving portion 145a, 145b Closing plate portion 146a, 146b Operation portion 160 Lid 162a Notch

Claims (5)

An opposing wall portion that rises from the bottom portion and faces each other and a side wall portion that rises from the bottom portion by connecting both ends of each of the opposing wall portions are integrally formed on the case, and the opposing wall portion and the side wall A storage chamber that is surrounded by a portion and the bottom and has an opening at the top, and a fixed contact and a movable contact are stored in the storage chamber,
In the storage chamber, a slider is supported in parallel with the bottom portion so as to be movable from an initial posture to a switching posture, and a support recess that is released upward is formed in one of the opposing wall portions. An operating portion that protrudes outward from the support recess is formed on the slider, the pressing member is supported by the slider so as to be movable in a direction intersecting the moving direction of the slider, and the pressing member is supported by a spring member. It is pressed against the movable contact,
When the slider moves to the switching posture, the pressing member rides on the movable contact, the contact between the movable contact and the fixed contact is switched, and the spring member is deformed by the pressing member , The slider is given a return force to the initial position ,
The slider is integrally formed with a closing plate portion that moves along the opposing wall portion while covering the supporting recess while moving from the initial posture to the switching posture, and the operation portion is provided on the closing plate portion. Formed,
The switching device according to claim 1, wherein the slider is further provided with an opposing moving portion facing the closing plate portion, and the spring member is disposed between the closing plate portion and the opposing moving portion . The switching device according to claim 1 , wherein a sliding protrusion is integrally formed on an upper end portion of the slider, and the sliding protrusion slides on an inner surface of a lid that covers the opening . In the case, a pair of inner facing wall portions facing each other as the facing wall portion and an outer facing wall portion facing the outside of each inner facing wall portion are integrally formed,
Each of the inner facing wall portion, the outer facing wall portion, the side wall portion, and the operation space formed between the two opposing storage chambers surrounded by the bottom portion and the bottom portion, and an opening portion formed above, and the inner facing wall portion. The stationary contact, the movable contact, the slider, the pressing member, and the spring member are accommodated in each storage chamber, and the opening of each storage chamber is covered with the lid. And
The supporting concave portion is formed in the inner facing wall portion, and the operation portions provided on the two sliders are opposed to each other with an interval in the operation space, and the two sliders move toward a switching posture. The switching device according to claim 2 , wherein the directions are opposite to each other. Two sets of the fixed contact, the movable contact, the slider, the pressing member, and the spring member are stored in one storage chamber,
3. The switching device according to claim 1 , wherein the supporting concave portion is formed in the two opposing wall portions facing each other, and the two operation portions protrude in opposite directions from the respective opposing wall portions. The storage chamber is provided with an intermediate wall portion between the two opposing wall portions, and each slider is provided with an opposing moving portion that faces the closing plate portion,
The switching device according to claim 4 , wherein the opposed moving portions of the two sliders are movably supported by the common intermediate wall portion.

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