JPH04111124U - control switch - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify the structure of the contact part and increase the reliability of contact. [Structure] A movable body 7 that rotates depending on the operating state of an automatic transmission is hermetically stored in a storage chamber 27 formed inside a container 1. The contact portion 22a of the movable body 7 selectively contacts a plurality of fixed contacts 13 protruding from the inner surface of the storage chamber 27. The fixed contact 13 is formed in an arc shape centered on the rotation axis of the movable body 7. The contact portion 22a is formed into a shape that contacts the fixed contact 13 by elastically sandwiching it from both sides.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a controller that switches gears according to the operating status of an automobile's automatic transmission. This is about a switch.

0002

[Conventional technology]

Depending on the operation of the automatic transmission of the car, such as neutral position, reverse position, drive position, etc. For control switches that are switched by A movable body that moves is hermetically stored in a storage chamber formed inside the container, and the movable position of the movable body is adjusted. According to selectively contacts the automatic transmission's neutral position, reverse position, drive position, etc. Switching is performed depending on the operating state.

0003 The movable body 7' of this type of control switch has the structure shown in Figure 10. , slidingly contacts the movable shaft 3 connected to the automatic transmission and the fixed contact 13' to open and close the contact. It consists of a movable piece 2 to which a movable contact body 22' is attached. Movable contact body 22' is formed in the shape shown in FIG. 12, and is formed on one surface of the movable piece 2 as shown in FIG. 9(b). The movable contact It is disconnected by short-circuiting or opening a pair of fixed contacts 13' using a point body 22'. exchange. The fixed contact 13' is formed by punching out one end of the conductive plate 12 as shown in FIG. The movable contact body 22' is formed by a spring as shown by the broken line in FIG. They come into elastic contact due to the spring force of the pin 21.

0004

[Problem that the idea aims to solve]

However, the above-mentioned contact structure requires a large number of parts and requires the movable contact body 22'. Assembly is troublesome because the spring 21 must be inserted into the recess 8. There is a problem. Further, as described above, the movable contact body 22' is elastically protruded. If the structure is such that it makes elastic contact with the fixed contact 13', the operating angle (movable contact body 22 For example, in order to set the contact range between the fixed contact 13' and the fixed contact 13', It is said that a structure for setting the operating angle using ribs etc. is required on the inner surface of the storage chamber where the storage chamber protrudes. There is a problem, and the problem is that the contact reliability is not very high with the above structure. was there.

[0005] This invention was developed in view of the above points, and its purpose is to A controller that can simplify the structure of the point part, has good operating angle accuracy, and has high contact reliability. The goal is to provide a troll switch.

[0006]

[Means to solve the problem]

In this invention, in order to achieve the above purpose, a circular arc shape centered on the rotation axis of the movable body is developed. The above-mentioned fixed contact is formed in the contact portion, and the above-mentioned fixed contact is elastically sandwiched from both sides. It is formed in a shape that makes contact with it.

[0007]

[Effect]

By configuring the present invention as described above, the fixed contact is sandwiched between the contact portions from both sides. A two-point contact structure that makes contact with the The contact part itself has spring properties, eliminating the need for springs or other members and reducing the number of parts. This makes assembly easier, and the movable body rotates while holding the fixed contact. With this structure, the operating angle can be set just by the width of the fixed contact, and there is no wobbling. This is to improve the accuracy of the operating angle by reducing the Ru.

[0008]

【Example】

An embodiment of the present invention is shown in FIGS. 1 to 9. The control switch in this example is , two substantially fan-shaped cover bodies 1 made of resin molded products such as reinforced resin containing glass fibers. a and 1b, and a storage chamber formed inside this container 1. 27 and a movable body 7 that is sealed and moves according to the operating state of the automatic transmission. Ru.

[0009] As shown in FIG. 3, a sector-shaped recess 5 is formed on the inner surface of the cover body 1a shown in FIG. A through hole 4 is bored in a main part of this fan-shaped recess 5. In addition, the cover body 1b shown in FIG. 4 has a fan shape like the cover body 1a as shown in FIG. A recess 8 is formed on the inner surface, and a through hole 9 is bored in a main part of the recess 8. subordinate Therefore, when these cover bodies 1a and 1b are attached, the movable body 7 is accommodated in the recesses 5 and 8. A storage chamber 27 is formed inside the container 1.

0010 A plurality of conductive plates 12 are inserted into the cover bodies 1a and 1b, and the conductive plates 1 A fixed contact 13 is integrally formed at one end of each of the two. The fixed contact 13 is shown in FIG. Bend one end of the conductive plate 12 and curve it into a concentric arc shape centered on the through holes 4 and 9. The conductive plate 12 has the fixed contact 13 centered around the through holes 4 and 9. Embedded in the inner bottom surfaces of the recesses 5 and 8 of the cover bodies 1a and 1b so as to be arranged in a concentric arc shape. It has been done. The other end of the plurality of conductive plates 12 is the outer periphery of each cover body 1a, 1b. Terminals 15a, 15b are provided to protrude outward from the surface, and these terminals 15a, 15 By attaching the connector housing 36 to the protruding part of b, you can connect the connector to an external circuit. It is designed so that

[0011] Here, the fixed contact 13 (PI) of the cover body 1a is a parking input contact, 13 ( RI) is the reverse input contact, 13 (DI) is the drive input contact, 13 (LI) is the The low input contact 13 (COM) is a common contact, and the fixed contact 1 on the cover body 1b side 3 (PS), 13' (PS) are parking input contacts, 13 (NS), 13' (N S) is the neutral input contact, 13 (NI) is the neutral input contact, 13 (2 I) is the second input contact.

0012 Furthermore, a rubber packing fitting groove 1 is provided in the cover body 1a along the outer periphery of the recess 5. 4, and a recess 17 for fitting the ridge 16 into it. It is formed on the outer periphery of the recess 8 of the cover body 1b. As shown in FIG. 6, the movable body 7 has a fixed connection with a movable shaft 3 connected to an automatic transmission. a movable piece 2 to which a movable contact body 22 is attached that slides into point 13 to open and close the contact; Consisting of The movable contact body 22 is made of a conductive member having spring properties in a ladder shape as shown in FIG. A contact portion 22a is formed in the center of the horizontal piece to make contact with the fixed contact 13 in a pinched manner. The contact portion 22a is curved in a wavy manner so as to narrow the distance between the centers of the opposing pieces. Thus, the contact portion 22a is made elastic at this portion. This movable contact body 22 It is attached to the movable body 7 by press fitting or insert molding, and is a fixed connection of the movable piece 2. A contact portion 22a is exposed within the groove 7a for passing the point 13.

[0013] By the way, in the above-mentioned movable contact body 22, the fixed contact 13 is connected to either of the cover bodies 1a and 1b. This is true if it is provided on only one side. Therefore, as in this embodiment, the cover body When providing the fixed setting 13 in both 1a and 1b, basically the structure shown in Fig. 8 is used. Two sets of movable contact bodies 22 are attached to the movable body 7, and are connected to the fixed contacts 13 on both sides of the movable body 7. It is necessary to bring the contact portion 22a into contact. Further, in the above case, the wavy shape of the contact portion 22a However, as shown in Figure 1, the contact area has been changed to a shape with a narrower tip. The shape is not limited as long as each piece of 22a has elasticity. moreover , in the case of FIG. 8, the wavy portion of the contact portion 2a functions as a movable contact, but as shown in FIG. Movable contacts may be fixed to the inner surface of each piece at positions facing each other.

[0014] FIG. 1 shows a state in which the cover bodies 1a and 1b are attached to each other with the movable body 7 sandwiched between them. vinegar. In this case, both end surfaces of the rotation shaft 3 are placed around the openings of the through holes 4 and 9 of the cover bodies 1a and 1b. The movable body 7 is housed in the container 1 while being rotatably held by the edges. In this state, the rotation axis 3 The through hole 3a communicates with the through holes 4 and 9. Furthermore, cover bodies 1a and 1b When the cover body 1a is attached, the ridges 16 of the cover body 1a fit into the recesses 17 of the cover body 1b. The inner peripheral surfaces of both cover bodies 1a and 1b are brought into contact with each other, and this contact surface is coated with adhesive. The movable body 7 is housed by fixing by adhesion or welding using an ultrasonic welding machine. The storage chamber 27 is sealed.

[0015] By the way, if the contact portion is formed as described above, the following advantages can be obtained. Two Therefore, as shown in FIG. 1, the fixed contact 13 is connected with the contact portion 22a sandwiching it from both sides. Since the contact structure has a two-point contact structure, the reliability of the connection is high. . Furthermore, if the movable contact body 22 has the structure shown in FIG. 8, the number of parts can be reduced compared to the conventional one. This eliminates the need for the troublesome work of interposing a spring. Furthermore, fixed If the contact point 13 has the structure shown in FIG. The operating angle can be set just by the width of the fixed contact 13 without forming the movable contact 13. moves within the contact portion 22a while being held from both sides, so there is no rattling. This improves the accuracy of the operating angle.

The operation of this embodiment will be explained below. However, the movable contact body 22 of this embodiment has the following structure because the fixed contacts 13 are distributed and arranged on the cover bodies 1a and 1b in the state explained in FIGS. 3 and 5. . That is, as shown in FIG. 1, three contact parts 22a face the surface facing the cover body 1b side, and two contact parts 22a face the surface facing the cover body 1a side (in the following, The movable contact body 22 and each contact portion 22a will be explained by distinguishing them by the numbers shown in the figure). In the case of this embodiment, the contact parts 22a ₃ and 22a ₄ are integrated, but the contact part 22a ₅ is not integrated with the contact parts 22 a ₃ and 22a ₄ , and is 22a ₁ and 22a ₂ .

Now, when the movable body 7 is rotated by a predetermined angle, the contact portions 22a ₃ and 22a ₄ of the movable body 7 facing the cover body 1b side become 13 (PS), 13' (PS), 13 (NS), and 13. ' (NS), and the contact portion 22a ₅ also contacts the fixed contacts 13 (NI) and 13 (2 I). Further, the contact portions 22a ₁ and 22a ₂ facing the cover body 1a side contact 1 3 (COM), 13 (PI), 13 (RI), 13 (DI), and 13 (LI).

FIG. 9 shows a wiring diagram of the control switch. In this control switch, both ends of a series circuit of a starter circuit ST, a battery BT, and a starter switch SW are connected to terminals 15b ₄ and 15b ₁ , respectively, and a starter circuit is connected between these terminals 15b ₄ and 15b ₁ . A switch circuit that turns on and off by a movable contact body 22 ₂ between parking input contacts 13 (PS) and 13' (PS) for the starter circuit, and a movable contact between neutral input contacts 13 (NS) and 13' (NS) for the starter circuit. A switch circuit that turns on and off at the body ₂₂₂ is inserted in parallel with each other.

On the other hand, the signal circuit system includes a circuit that connects the signal processing load L ₁ via a switch circuit that turns on and off between the common contact 13 (COM) and the parking input contact 13 (P I), and the common contact 13 (COM) and the reverse input contact 13 (RI), which connects the signal processing load _L2 through a switch circuit that turns on and off, and the common contact 13 (COM) and the neutral input contact 13 (NI) of the signal system. A circuit that connects the signal processing load L3 through a switch circuit that turns on and off the signal processing load _L4 , and a circuit that connects the signal processing load L3 through a switch circuit that turns on and off the common contact 13 (COM) and the drive input contact ₁₃ (DI). A circuit that connects the signal processing load L ₅ through a switch circuit that turns on and off the common contact 13 (COM) and the second input contact 13 (2I), and the circuit that connects the common contact 13 (COM) and the low input contact 13 ( A circuit is constructed in which a signal processing load L6 is connected via a switch circuit that turns on and off LI) and a signal processing load L6, and each circuit is turned on and off by a movable contact body ₂₂₁ , and a neutral input contact 13 (NI) and a second input contact 13 ( In the circuit including 2I), the contact portion 22a ₅ is related to on/off.

The switching states of the switch circuit when the movable body 7 is rotated and moved from the parking position "P" to the low position "L" will be described below. First, when the movable body 7 is moved to the parking position "P", in this state, the movable contact body 22 ₂ turns on the parking input contacts 13 (PS) and 13' (PS), and at the same time, the movable contact body 22 ₁ turns on the parking input contacts 13 (PS) and 13' (PS). This turns on the common contact 13 (COM) and the parking input contact 13 (PI), which makes it possible to start the starter circuit ST, and the signal processing load L ₁ operates to perform signal processing related to parking. be exposed.

Next, when the movable body 7 is rotated to the reverse position "R", the common contact 13 (COM) and the reverse input contact 13 (RI) are turned on by the movable contact body 22 ₁ , and signal processing is performed by this turning on. The load _L2 operates and signal processing related to reverse is performed. At this time, the switch circuit of the starter circuit ST is open, and the starter circuit ST cannot be started in this reverse position "R".

When the movable body 7 is further rotated and moved to the neutral position "N", the movable contact body 22 ₂ turns on the neutral input contacts 13 (NS) and 13' (NS), and at the same time the neutral input contacts 13 (NI) comes into contact with the contact portion 22a ₅ and the movable contact body 22 ₁ contacts the common contact 13 (COM), turning on between the neutral contact 13 (NI) and the common contact 13 (COM). This makes it possible to start the starter circuit ST, and at the same time, the signal processing load _L3 operates to perform signal processing on the neutral.

Furthermore, when the movable body 4 is rotated and moved to the drive position "D", the movable contact body 22 ₁ turns on between the common contact 13 (COM) and the drive input contact 13 (DI), By turning on the signal processing load L4, the signal processing load _L4 is activated to perform signal processing related to the drive. At this time, the switch circuit of the starter circuit ST is open, and the starter circuit ST cannot be started at this drive position "D".

When the movable body 4 is rotated and moved to the second position "2", the second input contact 13 (2I) comes into contact with the contact portion _22a5 , and the movable contact body ₂₂₁ contacts the common contact 13 (COM ) and the contact between the second input contact 13 (2I) and the common contact 13 (COM) turns on. This turning on causes the signal processing load _L5 to operate and perform the second signal processing. At this time as well, the switch circuit of the starter circuit ST is open, and the starter circuit ST cannot be started at this second position "2".

When the movable body 4 is rotated and moved to the low position "L", the movable contact body 22 ₁ turns on the common contact 13 (COM) and the low input contact 13 (LI), and this turns on the signal. The processing load L ₆ operates to perform signal processing on the low signal. At this time as well, the switch circuit of the starter circuit ST is open, and the starter circuit ST cannot be started in this low position "L".

By rotating the movable body 4 in this manner, the signal processing loads L ₁ to _{L 6} are sequentially switched, and the starter circuit ST can be activated at the parking position “P” position and the neutral position “N”. Set it so that it is.

[0027]

[Effect of the idea]

As mentioned above, the present invention has the above-mentioned fixed contacts arranged in an arc shape centered on the rotation axis of the movable body. The contact portion is shaped so that it contacts the fixed contact by elastically sandwiching it from both sides. Two-point contact in which the fixed contact is held between both sides by the contact part. structure, the reliability of the connection is high, and the contact part itself has spring properties. , the number of parts is reduced by eliminating the need for springs and other members, and assembly is easy. Furthermore, since the structure is such that the movable body rotates between the fixed contacts, the width of the fixed contacts This feature allows you to set the operating angle with just a single touch, and improves the accuracy of the operating angle with less rattling. There is a point.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a plan view of one cover body constituting the container.

FIG. 3 is a bottom view of the same as above.

FIG. 4 is a plan view of the other cover body constituting the container.

FIG. 5 is a bottom view of the same as above.

FIG. 6(a) is a plan view of the movable body. (b) is a sectional view taken along line A-A' of the same as above.

FIG. 7(a) is a perspective view of a conductive plate. (b) is a sectional view taken along line B-B' of the same as above.

FIG. 8(a) is a plan view of the movable contact body. (b) is a sectional view taken along line C-C' of the same as above.

FIG. 9 is a wiring diagram of a control switch.

FIG. 10(a) is a plan view of a conventional movable body. (b) is a sectional view taken along line D-D' of the same as above.

FIG. 11(a) is a perspective view of a conductive plate. (b) is a sectional view taken along the line E-E' of the same.

FIG. 12(a) is a plan view of the movable contact body. (b) is a sectional view taken along line F-F' of the same as above.

[Explanation of symbols]

1 container 7 Movable body 13 Fixed contact 22a Contact part

Claims (1)

[Scope of utility model registration request] Claim 1: A movable body that rotates depending on the operating state of an automatic transmission is hermetically stored in a storage chamber formed inside a container,
The contact part of the movable body selectively contacts a plurality of fixed contacts protruding from the inner surface of the storage chamber, and switching is performed according to the operating state of the automatic transmission, such as neutral position, reverse position, drive position, etc. A control switch, in which the fixed contact is formed in an arc shape centered on the rotation axis of the movable body, and the contact portion is formed in a shape that contacts the fixed contact by elastically pinching it from both sides. A control switch featuring