TW200305898A - Sealed type pressing switch - Google Patents

Abstract

The present invention provides a sealed type pressing switch which is water-proof, reliable, having good productivity, and will not generate striking. In the sealed type pressing switch of the present invention, the plate portion (3a) of the water-proof member (3) is pressed, by the lid (4), on the whole body of the ring-like end surface (1d) on the opening side (1c) of the sidewall (1b) forming one part of the accommodation portion (1e) of the chest body (1), so that the accommodation portion (1e) can be substantially sealed, which not only is water-proof, but also has simple structure with good productivity.

Description

200305898 Ο) 发明 Description of the invention (The description of the invention should state: the technical field, prior art, contents, embodiments, and drawings of the invention are briefly explained.) [Technical Field] The present invention relates to a sealed pusher suitable for use as a micro switch, etc. switch. [Prior Art] The following is a description of a conventional sealed-type push switch. Fig. 4 is a sectional view of a main part of the conventional sealed-type push switch, and Fig. 5 is an enlarged sectional view of a main part related to the conventional sealed-type push switch. The following describes the structure of a conventional sealed push switch with reference to FIG. 4 and FIG. 5. An insulating base 5 1 made of a rim material has a base 5 1 a and protrusions 5 1 protruding outward from both sides of the base 5 1 a. b. In the base portion 5 1 a of the insulating base body 51, three fixed contacts 52, 53, 54 made of a metal plate are embedded. The movable contact 5 5 made of an elastic metal plate is mounted with one end fixed to the support portion 52 a of the fixed contact 52 so that the contact portion 5 5 a provided at the other free end can be fixed to the fixed contact 5 Move between 3, 5 and 4. One end of the coil spring 5 6 is hooked to the hook portion 5 2 b of the fixed contact 5 2, and the other end is hooked to the movable contact 5 5. With the coil spring 5 6, the movable contact 55 is fixed to the contact 52. The supporting portion 52a is a fulcrum reversing action, and the contact portion 55a can be separated from the fixed contact 53 or 54. The housing 57 made of a resin molded product has an upper wall surface 57a, a through hole 5 7b provided in the upper wall surface 5 7 a, and a recess 57c provided outside the upper wall surface 57a in a state of being located at the outer peripheral portion of the through hole 5 7b. A convex side portion 57d for caulking provided around the concave portion 57c, a cylindrical side wall 5 7e provided downwardly protruding from the upper wall surface 57a, and a receiving portion 57g surrounded by the upper wall surface 5 7a and the side wall 5 7e. (2) 200305898

In addition, point 5 5 and 57 are installed on the rubber seat surface 57a of the container at this time, and the insulation is inserted into the structure that is waterproof and convex, and the connection can be incomplete. The following anti-defense guidance is provided: if the body 5 7 is covered by the insulated coil spring 56 and the like, the body 5 7 and the insulating base are placed on the insulating base 5 1 and the movable contact 5 5 and the coil spring 5 6 are placed at the edge base 5 1 So that the movable contact 111 is fixed on the protruding portion 5 1 b of the insulating base 51, and both of the bodies 5 1 are bonded or welded, and the housing is held in the receiving portion 57 g. The cup-shaped waterproof member 5 8 made by the above has a ring 5 5 a a provided at the lower part, a plurality of holes provided at the top, a shape body t ^ 4 arranged at the upper part of the seat part 58 a and the recess 5 7 c of the spoon, The convex part 5 7 d is hot riveted with the waterproof member 58 and the safety garment on the shout body 57.

The button 5 Q made of material has a convex portion 5 9 a on the top, and the button 5 opens into the ^ 0 Betong hole 57b of the upper wall surface 57a, and the convex portion 59a is inserted into the hole 58b of the member 58.. Pretend to be movable, through the top of the hot sword 4 5 9 a to melt the servant, note 5 9 and the waterproof member 5 8 become a knot ^ 〇4 said to help the above 5 7 a, & spoon projection 5 7 d and press the 5 The convex part 9 of 9 9 is riveted to achieve the waterproofing of the through-hole 5 7 b of the receiving part 5 7 *, but it often sends a full point knot or melted, which reduces the σ. 5 丨 The gap 5 with the housing 5 makes the seal of the receiving portion 57g in an inadequate condition. It is known that the conventional push switch has the structure of a kind of structure. If the member 5 8 elastically presses the button 5 9, the button 5 9 Move under the through hole 5 7 'press the middle portion of the coil spring 5 6. In this way, the middle portion of the movable contact 5 5 is lowered downward, and the movable contact 200305898

(3) Point 5 5 uses the supporting part 5 2 a as a fulcrum to reverse the action, and changes from the contact state with the fixed contact 5 4 to the contact state with the fixed contact 5 3 between the fixed contacts 5 2 and 5 3 It is turned on. Then, in this state, if the pressing of the button 5 9 is released, the button 5 9 is reversely pushed under the action of the coil spring 56 to return to the state before the pressing, and the movable contact 5 5 uses the supporting portion 5 2 a as The fulcrum is reversed, and as a result, it separates from the fixed contact 5 3 and returns to the original state of conduction between the fixed contacts 5 2 and 5 4. That is, the movable contact 5 5 forms a contact state by striking the fixed contacts 5 3 and 5 4. The push switch is operated as described above. The conventional push switch has the problems of long assembly time and large equipment because the insulating base 51 and the housing 57 are fixed by adhesion or welding. In addition, it is not only difficult to confirm whether the seal is indeed sealed by adhesion or welding, but often the adhesion or welding is incomplete, so that a gap S is generated between the insulating base 5 1 and the case 5 7, so that the accommodating portion 5 7 g The seal is inadequate. In addition, since the waterproof member 58 needs to be installed, it is necessary to thermally rivet the convex portion 5 7 d provided on the upper wall surface 5 7 a. Therefore, there are problems of troublesome installation and poor productivity. In addition, the movable contact 55 is in contact with the fixed contacts 5 3 and 5 4 by hitting, so that not only tremor is generated, but also the contact is unstable due to the single-sided contact. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a hermetically sealed push switch that is waterproof and reliable, and has high productivity. / 、 The first solution to the above problem, 1 is made, and is integrated into a box shape with an opening on the side a of the insulating material ^ multiple fixed contacts, 1 dead body, paper The working component of the casing, and the fm—inserted as the component, kept at this operating point, and sealed the waterproof structure of the inside of the casing by the movable contact mountain that seals the switching of the contacts; The ballast body in the casing has a bottom wall, and from the bottom wall wall, an end side surrounded by a ring-shaped side wall that is large above the linen and an end side provided on the side wall, + , * 丨 on the side wall of the _. ^ Return opening 0 卩, the contacts of the fixed contact are adjacent to the place, f movable contact and the place holding the movable contact ^ + part, housed in place, ... The main body of the operation member is from the flat-shaped adjacent ridge— "the cymbal has a flat-shaped portion '" and ::: protrudes upward from the curved top; the cover is used to press the waterproof cutting board ㈣ on the side wall The entire clothing-like end face 4 of the opening part makes the inside of the accommodating part in a sealed state, and at the same time protrudes outward through the insertion hole of the cover The curved top portion π is provided with an operation portion of the operation member. In a first solution, a hole is provided at a top portion of the dome portion, and a convex portion provided at a front end of the operation member is inserted and penetrated. The hole is riveted to the top of the dome. The second solution is structured between the operating member and the casing, and the force applying member that applies force to the operating member is interposed. The front end is connected to the inner surface of the top of the curved top. In addition, the fourth solution is that the cover includes an upper panel with the insertion hole, and at least one pair of sides extending downward from the upper panel. The panel, Lee 200305898 (5) The side panel and the side wall of the casing are engaged with each other by a fixing device (clamping device). Furthermore, the fifth solution is constituted in a place contained in the accommodating portion. The outer periphery of the body portion is formed in accordance with the shape of the outer shape of the accommodating portion, and the body portion is movable under the guidance of the inner surface of the side wall.

In a sixth solution, the movable contact includes a first base and a second base formed by bending an elastic metal plate, and the open portions are arranged opposite to each other; the first and second base portions are arranged at intervals and connect to each other First and second connecting portions of the first and second base portions; at least two first, A second contact portion; the contact portion of the fixed contact extending upward from the bottom wall, the open portion between the first and second base portions, and the first and second portions Between the contact portions, the movable contact is moved in the extending direction of the contact portion by the operation of the operating member, and two of the fixed contacts are caused by the first and second contact portions. On and off. In a seventh solution, the first and second connecting portions of the movable contact are bent into a U-shape, and are arranged in a hole provided between the first and second connecting portions. The first and second contact portions, the first and second base portions are disposed closer to the bottom wall than the first and second contact portions, and the fixed contact passes through the first and second portions. The open portion of the base portion reaches the first and second contact portions. The eighth solution is such that the main body portion has a receiving portion provided at a lower portion to accommodate the movable contact, and an upper portion of the receiving portion -10- 200305898 In the through hole provided by Λ ′, the contact portion is located in the through hole at least when the body portion moves. [Embodiment] The following describes the sealed push switch of the present invention, FIG. 1 is an exploded perspective view of the sealed push switch of the present invention, FIG. 2 is a sectional view of a main part of the sealed push switch of the present invention, and FIG. 3 This is a sectional view of a main part of another embodiment of the sealed push switch of the present invention.

The structure of the sealed push switch of the present invention will be described below with reference to FIGS. 1 and 2. A box-shaped casing 1 made of a molded product constituting an insulating material has a bottom wall 1 a protruding upward from the bottom wall 1 a. The ring-shaped side wall 1 b, an opening portion 1 c provided on the end side of the side wall 1 b, and the ring-shaped end surface 1 d on the side of the opening portion 1 c of the side wall 1 b is surrounded by the bottom wall 1 a and the side wall 1 b The accommodating portion 1 e includes a plurality of wedge-shaped protrusions 1 f provided on the outer peripheral surface of the opposite side wall 1 b.

The three fixed contacts 2 made of a metal plate have a contact portion 2 a and a terminal portion 2 b. The contact portion 2 a is embedded in the bottom wall la and protrudes upward from one side (upper surface) of the bottom wall la. The terminal The portion 2b protrudes downward from the bottom wall la. In addition, in the contact portion 2 a of the fixed contact 2, two of the three are formed higher (longer) than the other, and one of the two of the higher heights is provided with a waterproof material made of a hole rubber material. The member 3 includes a flat plate portion 3 a, a dome portion 3 b protruding upward from the flat plate portion 3 a, and a hole 3 c provided on the top of the dome portion 3 b. The flat plate portion 3 a of the waterproof member 3 is configured. It is carried on the end surface Id of the side wall 1 b. The box-shaped cover 4 made of a molded product of an insulating material has a substantially rectangular shape -η-200305898 上 The upper panel 4 a, which is provided with circular insertion holes 4 b of the upper panel 4 a, from four sides of the upper panel 4 a Four side panels 4C protruding downward, and a recessed portion 4d provided in the opposite side panel 4c. The side panel 4c may be formed as two side panels 4c arranged opposite to each other. The cymbal 4 cooperates with the housing 1 and covers the waterproof member 3. The protrusion if is fitted into the recess 4d provided in the side panel 4c. The cover 4 is mounted on the housing i. That is, the projection 1f and the recess 4d constitute a fixing device, and the fixing device is assembled by engaging the two together. When the cover 4 is mounted on the casing 1, the dome top portion 3b protrudes outward from the insertion hole 讣, and at the same time, the flat panel portion 3a of the waterproof member 3 is pressed against the entire end surface 1d by the upper panel 4a, so that the receiving portion 1e is sealed. status. The cylindrical operating portion 5b of the Tian insulation material protrudes upward from the main body portion 5a, and a convex portion 5c provided at the front end of the work portion ， is provided at the receiving portion 5 (j is provided at the upper portion of the receiving portion 5d) The through hole 5e is provided in parallel with the accommodating portion W, and the accommodating portion provided at the lower portion of the main body portion 5 & opposite to the operation portion 5b. The outer periphery of the main body portion 5a is formed to match the outer shape of the accommodating portion U of the body 1. The shape of the main body part 5a of the probing member 5 is 5%, and the «^ ^, 餸 丨 & is incorporated in the trough part le of the body that breaks the waterproof member 3 and can sleep for 3 hours on the same day. In a state where the operation portion 5 b is located in the dome 3 b, the hole 3 c of the Beton waterproofing member 3 is convexly ^ riveted to the top 3 b of the bow. In addition, the operation member 5 can be installed to At 1% of the upper body, the main body part 5a is moved up and down by the side wall ", and the contact part 2a of the contact part 2 is full because of fullness; -12- 200305898

触点 When the body part 5a is moved while the body part 5a is being moved in the accommodating part 5d, the contact part 2a is located in the through hole 5e. That is, the through-hole provided in the main body portion 5a becomes the exit 胄 of the contact point 2a, thereby reducing the size in the height direction of the main body portion 5a. The elastic metal plate is bent into X; the movable contact 6 formed by the letter shape has the first and second strip-shaped bases 6 and 6 provided with the openings 6a and 4 meshes arranged opposite to each other: arranged at intervals from each other *, Connect the first and second base portions 6b, 6. The first and second connecting portions 6d and 6e of the U-shaped sub-shape are provided with holes 6f of $ 詈 between the first and second connecting portions 6d and 6e so as to be located in the first and second connecting portions 6 (1 The shape energy in the hole 6 f is between the three first and second contact parts hn of the clip-shaped three first and second contact parts hn that are opposite to each other from the first and second bases. 6 First, the first flute is accommodated in the operating member 5! Second; the contact parts 6g, 6h sides are upwards to accommodate on the operating member 5. ^ The state inside 4 is installed in an appropriate manner, and the movable contact 6 It is installed on the 6b, and is placed on the second base position when compared to the first and the second parts, and at the same time, the fixed contact 2 touches one ::: one closer to the bottom wall "base 讣 ^" The opening section ^ is located at the first and second 6h.-It extends to the first and second contact portions 6g, and the corresponding state of each of the three sets of first and second fixed contacts 2 ... 6g And 6h respectively form three fixed operation members 5 above and below. The pieces 5 move together. As a result, when the first movement is performed, the movable contact 6 and the contact portion 2 of the operation structure 2 extend the side. A contact portion 6g, 6h fixed contact ° movement, three first and second contact portions' 13-- (9) 200 305 898

6g and ⑼ clamp the contact contact portions 2 away from both sides to switch between the fixed contacts 2. A biasing member 7 constituted by a coil spring disengaged from the contact portion 2a is in a state where the accommodating portion between the operating mechanism and the bottom operating mechanism is constantly urged upward. -Between soil 3, the operating member $ will be described below. When the bamboo shoot operating member 5 with this structure is not in operation, as shown in Figure 2, the operation of the Tianyibao switch is in the state of two first and second movable contacts. Point 6 holds the higher point 2a in the upper bar codes W 6g and 6h, and the two fixed contacts 2 hold the same degree & In this state, if the pressing operation mechanism is pressed against the curved top yoke force member 7 at the same time for 1.5 b ', the movable contact 6 and ... 3b and

… The working member 5 moves together, and one of the contact portions 6g, 6h of M1 and the second is located in the hole 2 provided in one of the two contact portions of the high-end and the second. Inside, it becomes non-contact. In the middle of another fixed contact 2a with a higher height, one of the first contact portions 6g, 6h maintains the contact state, and the other one of the contact portion 6 of Ledi, which holds the lower contact portion 2a The state is in a state of contact, and the two fixed contacts 2 are in a conducting state. ~, During this period, the extension direction of the three first and second contact portions, that is, the downward movement ', while the front end of the contact portion 2 & is accommodated for 5 d and enters the through hole 5 e. Then, if the pressing of the operation part 5b is released, as shown in FIG. 2, the operation part 5 automatically returns to the state before pressing. During this period, the movable contact 6 and the operation The member 5 moves together, -14- 200305898 (ίο) First, the second contact portions 6g, 6h move in the extending direction of the contact portion 2a, that is, upward, and switch the contacts between the fixed contacts 2 at the same time. In this manner, the operation of pressing the switch is performed. In addition, FIG. 3 shows another embodiment of the sealed push switch of the present invention. This embodiment does not include the convex portion 5 c and the hole 3 c of the above embodiment. The front end of the operation portion 5 b and the top inner surface of the dome portion 3 b Butt.

The rest of the structure is the same as that of the above-mentioned embodiment, and the same components are marked with the same symbols, and descriptions thereof are omitted here. [Effect of the invention]

The sealed push switch of the present invention comprises a box-shaped casing made of an insulating material and provided with an opening on one side, and a plurality of fixed contacts mounted on the casing can be movably held. The operating member and the movable contact which is separated from the fixed contact and performs contact switching, seals the waterproof member inside the casing, and is installed on the cover of the casing; the casing has a bottom wall that protrudes upward from the bottom wall. An annular side wall, a receiving portion surrounded by the bottom wall and the side wall, the opening portion provided on one end side of the side wall, a contact portion of the fixed contact and the movable contact, and a body of an operating member holding the movable contact The waterproof member has a flat plate-like portion, and the dome protrudes upward from the flat plate-like portion; the flat plate-like portion of the waterproof member is pressed against the entire annular end surface located on the opening side of the side wall by a cover. So that the inside of the accommodating part is in a sealed state, and the operating member is arranged in the dome top protruding outward through the insertion hole of the cover. That is, the flat portion of the waterproof member is pressed against the entire annular end surface located on the opening portion side of the side wall with the cover, so that the inside of the receiving portion is sealed. -15- 00 200305898

State, so that the inside of the accommodating part is surely sealed. Compared with the conventional technology, it is not only reliably waterproof, but also has a simple structure and good productivity. Guilty 'because a hole is provided on the top of the top of f, a convex portion disposed at the front end of the operating member is inserted through the hole and riveted on the top of the f, so: when in action, you can directly press the god [to obtain a good operation Sex. i 2: Between the operating member and the t-body, the force applying member is intervened, and the operating force is repeated. The front end of the member is connected to the top of the dome, so the inner surface of the top W For operability. You can directly press the operation part to get a good one. Since the cover includes at least a pair of side panels of the upper panel with finger through holes, the upper panel engages with the downward extending wall, so the handle panel and the side of the casing are The capacity =! Simple. Good productivity. The shape of the body of the body that fits the shape of the body is shaped to fit the shape of the body. The body can be moved. At the same time, the movement of the striker is stable. At the same time, the movement of the operating member can be made, and the movable contact package cylinder can be formed by bending the flexible metal plate to open the warrior, and the placing parts are opposed to each other. The first and the first _ · of the opening I are connected to the first and m _ one soil 邛, and the first _, the ^ ^ and the second and the first and the second connection are arranged at intervals from each other; The first and second states are at least one contact part of the fixed contact extending at least from the ground and the second base; the contact part from the bottom wall upwards and the contact part is located at Chu_ ^ The opening of the door between the Ministry and the first, the first, the first, the second and the second base The movable contact is at the contact part A ° s, and the extension direction is moved by the operation of the operating member through the first contact and the second contact ~ 16-200305898 (12), so that the two fixed contacts are conducted, In this way, since the contact between the movable contact and the fixed contact is held by a pair of first and second contact portions, there is no chattering caused by hitting contact as in the conventional technique.

In addition, since the first and second contact portions of the movable contact move in the extending direction of the contact portion, the moving direction of the operating member can be miniaturized, and the first and second contact portions hold and contact the fixed contact while being held in contact Therefore, it can make the contact stable and reduce the contact resistance. In addition, since the first and second contact portions of the movable contact are in contact with and clamped with the fixed contact in the extending direction of the first and second contact portions, the deformation of the first and second contact portions can be reduced.

In addition, the first and second connection portions of the movable contact are bent into a U-shape, and the first and second contact portions are disposed in a hole provided between the first and second connection portions. The base portion is disposed closer to the bottom wall than the first and second contact portions, and the fixed contacts reach the first and second contact portions through the opening portions of the first and second base portions, so the connection portions on both sides can be used for protection The contact portion reduces deformation of the contact portion when the movable contact is assembled. In addition, the main body portion has a receiving portion provided at a lower portion to accommodate the movable contact and a through hole provided at an upper portion of the receiving portion. At least when the main body portion moves, the contact portion is located in the through hole, so the through hole is provided. The withdrawal portion serving as the contact portion can reduce the body portion in the height direction. [Brief description of the drawings] FIG. 1 is an exploded perspective view of a sealed push switch of the present invention. Fig. 2 is a sectional view of a main part of the sealed push switch of the present invention. -17- 200305898 (13) Fig. 3 is a sectional view of a main part of another embodiment of the sealed push switch of the present invention. Fig. 4 is a sectional view of a main part of a conventional sealed push switch. Fig. 5 is an enlarged sectional view of a main part related to a conventional sealed-type push switch. [Schematic representation of symbols]

1 Case la bottom wall lb side wall lc opening Id end surface 1 e receiving portion If protrusion 2 fixed contact

2a Contact part 2b Terminal part 2c Sub L 3 Waterproof member 3a Flat part 3b Dome

3 c 孑 L 4 cover 4 a upper panel 4 b insertion hole-18- 200305898 (14) 4 c side panel 4d recess 5 operation member 5 a body 5b operation 5c convex 5d receiving portion 5e through hole 5f receiving portion 6 Movable contact 6 a Opening part 6b-Base part 6 c Second base part 6d First connection part 6 e Second connection part 6f Hole 6g First contact part 6h Second contact part 7 Force applying member

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Claims (1)

200305898 Patent application patent 1 · A sealed push switch, characterized by: dagger · made of insulating material 'box-shaped 1 body with openings on one side; multiple fixed contacts mounted on the housing Point; an operating member that can be movably held; a movable contact held in the operating member to be separated from the fixed contact for contact switching; a waterproof member sealing the inside of the casing; and installed on the A cover of the casing; the a body has: a bottom wall; an annular side wall protruding upward from the bottom wall, a receiving portion surrounded by the bottom wall and the side wall; and one end side of the side wall The opening portion of; the receiving portion, the contact portion of the fixed contact and the movable contact, and a body portion of the operating member holding the movable contact; the waterproof The member includes a flat plate-shaped portion, and a dome protruding upward from the flat plate-shaped portion; and the entire end surface of the annular end located on the side of the opening portion of the side wall is used to cover the waterproof member with the cover. Plate-shaped part Position, so that said receiving portion has a sealed state, and, in said insertion hole by bending the top of the cover projecting outwardly disposed portion of the operation of the operation member. 2. According to the scope of the patent application, drink on the mountain! The switch is provided with a hole on the top of the dome 六, and a convex portion provided at the front end of the operating member is inserted through the hole Θ 'and is riveted to the curved top. The sealed type according to the first scope of the patent application Press the switch, of which 200305898 A force applying member capable of applying force to the operation member is interposed between the operation member and the casing, and a front end of the operation member is in contact with an inner surface of the top of the dome. 4. The sealed push switch according to item 1 of the scope of patent application, wherein the cover includes: an upper panel with the insertion hole; and at least one pair of side panels extending downward from the upper panel; The device engages the side panel and the side wall of the casing. 5. The sealed push switch according to item 1 of the scope of patent application, wherein an outer periphery of the main body portion contained in the accommodating portion is formed along a shape of the outer shape of the accommodating portion, and the main body portion can be subjected to The inner surface of the side wall is guided to move. 6. The sealed push switch according to item 1 of the scope of patent application, wherein the movable contact includes: a first and a second base portion formed by bending an elastic metal plate, provided with an open portion and disposed opposite to each other; A first and a second connecting portion connected to the first and the second base portion, and protruding from the first and the second base portion in a state of being located between the first and the second connecting portion. At least two first and second contact portions provided; the contact portion of the fixed contact extending upward from the bottom wall is the opening between the first and second base portions The movable contact is moved in the extending direction of the contact portion between the portion and the first and second contact portions by the operation of the operation member, and passes through the first and second contact portions. To make the two fixed contacts conduct and disconnect. 7. The sealed push switch according to item 6 of the patent application, wherein 200305898 The first and second connection portions of the movable contact are bent into a U-shape, and the first and second contact portions are arranged in a hole provided between the first and second connection portions. The first and second base portions are disposed closer to the bottom wall than the first and second contact portions, and the fixed contacts reach the first through the open portions of the first and second base portions. 2. The second contact portion. 8. The hermetically sealed push switch according to item 6 of the scope of patent application, wherein the body portion includes a receiving portion provided at a lower portion to accommodate the movable contact, and a through hole provided at an upper portion of the receiving portion; and When the body portion is moved, the contact portion is located in the through hole.