KR100305246B1 - Switch device - Google Patents

Abstract

In order to increase the number of common fixed contacts and the fixed contacts connected to them sequentially, it is a problem to achieve without using a diode.

As a means to solve this problem, the first fixed contact group B1 having the first common fixed contact point B1, the first and third fixed contact points E1 and E3 is disposed on the first substrate 20, and the second The second fixed contact group 23 having the second common fixed contact point B2, the second and fourth fixed contact points E2 and E4 is disposed on the substrate 21, and the first common fixed contact point B1 is disposed on the substrate 21. The second common fixed contact point B2 is connected. On the basis of the lever operation, the first and second movable contacts 26 and 28 move synchronously in the (C) direction and the (D) direction at the time of the arrow. Each time the first and second movable contactors 26 and 28 move in the direction of arrows C and D, the number of common fixed contacts B1 and B2 and the number of fixed contacts E1 to E4 connected thereto are shown. It increases sequentially.

Description

Switch device {SWITCH DEVICE}

Fig. 7 shows the connection relationship of the four-stage continuous connection circuit. In the first operating state I, the common fixed contact B and the first fixed contact E1 are connected, and in the second operating state II, the common fixed contact B and the first and second fixed contacts. (E1) and (E2) are connected respectively, and in the third operating state (III), the common fixed contact point B and the first to third fixed contacts E1 to E3 are connected respectively, and the fourth operating state IV ), The common fixed contact B and the first to fourth fixed contacts E1 to E4 are connected to each other.

As a configuration for establishing a switch device having such a connection relationship in an extremely small space, there is conventionally a configuration shown in FIG. 8, for example. This has the following configuration.

The stationary contact group 2 which has the common fixed contact point B and the 1st-4th fixed contact point E1-E4 is arrange | positioned at the left side in the back surface of the board | substrate 1. The stationary contact group 2 includes a common stationary contact point B, first and third stationary contact points E1 and E3, and second and fourth stationary contact points E2 and E4. It is arranged so that there are three rows along the direction of (a) when the arrow, which is the moving direction of 3). The movable contactor 3 has three contact portions 3a, 3b and 3c corresponding to the fixed contacts in the three rows. The movable contact 3 has an OFF position and a first to fourth position based on the operation of an operating member (not shown). It is possible to move between operating positions (I to IV).

9 between the first fixed contact point E1 and the second fixed contact point E2 and between the second fixed contact point E2 and the third fixed contact point E3 on the back side at the right side of the substrate 1, respectively. Diodes 4a and 4b of polarity shown in the drawing are connected.

In the above configuration, when the movable contactor 3 is moved from the OFF position to the first operating position I, the contact portions 3a and 3b come into contact with the common fixed contact B and the first fixed contact E1, The state is connected (see 1st operating state I of FIG. 9).

When the movable contactor 3 is moved to the second operating position II, the contact portions 3a and 3c come into contact with the common fixed contact point B and the second fixed contact point E2 and are connected to each other. (See second operating state II of FIG. 9). At this time, since the first fixed contact point E1 and the second fixed contact point E2 are connected by the diode 4a, the common fixed contact point B and the first and second fixed contact points E1 and ( E2) is connected, and it is in the same state as the second operating state II in FIG.

When the movable contactor 3 is moved to the third operating position III, the contact portions 3a and 3b come in contact with the common fixed contact point B and the third fixed contact point E3 and are connected to each other. (See the third operating state III in Fig. 9). At this time, the connection between the first fixed contact point E1 and the second fixed contact point E2 and between the second fixed contact point E2 and the third fixed contact point E3 is achieved by the diodes 4a and 4b. As a result, the common fixed contact point B and the first to third fixed contacts E1 to E3 are connected to each other, and the same state as the third operating state III of FIG.

When the movable contactor 3 is moved to the fourth operating position IV, the contact parts 3a, 3b, and 3c are connected to the common fixed contact point B and the third and fourth fixed contact points E3 and E4. Is in contact with each other (see the fourth operating state IV in FIG. 9). Also at this time, the first fixed contact point E1 and the second fixed contact point E2 and the second fixed contact point E2 and the third fixed contact point E2 are connected by diodes 4a and 4b. Thus, the common fixed contact B and the first to fourth fixed contacts E1 to E4 are connected to each other, and the same state as the fourth operating state IV in FIG.

However, in the switch device of the above configuration, two diodes 4a and 4b are required, and these diodes 4a and 4b need to be provided on the substrate 1 separately from the stationary contact group 2. .

The present invention relates to a switch device having a configuration for sequentially increasing the number of common fixed contacts and fixed contacts connected thereto.

1 is a plan view of a substrate portion showing one embodiment of the present invention;

2 is a longitudinal side view of the substrate.

3 is a plan view of the switch device.

4 is a longitudinal sectional view taken along the line X-X in FIG. 3;

FIG. 5 is a longitudinal sectional view taken along the line Y-Y in FIG. 3; FIG.

6 is a diagram showing a connection relationship in each state.

Fig. 7 is a diagram showing a connection relationship in each state required.

8 is an equivalent diagram of FIG. 1 showing a conventional example.

9 is a diagram showing a connection relationship of each state in the conventional example.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a switch device that can be achieved without using a diode in order to sequentially increase the number of common fixed contacts and fixed contacts connected thereto. There is.

In order to achieve the above object, the invention of claim 1

A first and a second fixed contact group having a plurality of fixed contacts having a common fixed contact and a connection order thereof, and having a common fixed contact connected to each other;

One operation member operated in several stages,

The corresponding common fixed contact points are sequentially arranged in a connection order set to correspond to the first and second fixed contact groups, respectively, and move in a predetermined direction in synchronization with the operation of the operation member. Is provided with a first and second movable contact,

The first and second fixed contact groups and the first and second movable contact groups sequentially increase the total number of fixed contacts connected to the common fixed contact whenever these first and second movable contacts move in a predetermined direction. It is characterized by what is configured to be.

In the above configuration, when the first and second movable contactors are moved based on the operation of the operation member, the first movable contactors are connected to the fixed contact point corresponding to the common fixed contact point in the first fixed contact group according to the movement. The second movable contact is sequentially connected in order, and the second movable contact is sequentially connected to the common fixed contact in the second fixed contact group according to the connection order set to the corresponding fixed contact. At this time, each time the first and second movable contacts are moved, the total number of fixed contacts connected to the common fixed contact increases sequentially.

The above means do not require a diode because the first and second fixed contact groups and the first and second movable contacts can increase the number of common fixed contacts and the fixed contacts connected thereto in sequence. In addition, since the fixed contact group is divided into the first fixed contact group and the second fixed contact group, there is an advantage that it is not necessary to secure a large space in one place.

Next, an embodiment in which the present invention is applied to an exhaust brake switch of an automobile will be described with reference to FIGS. 1 to 6.

First, in FIG. 3, the lever 12 constituting the operation member in the switch case 11 can be rotated in a direction opposite to the arrow (b) and the arrow (b) in FIG. 3 around the shaft 13. To be placed. In this case, the lever 12 is configured to be operated in five stages between the OFF position and the first to fourth operating positions I to IV, and is disposed between the lever 12 and the switch case 11. It is fixed to each position by the angle adjustment mechanism not shown. Moreover, the lever 12 is arrange | positioned so that the 1st and 2nd arm parts 14 and 15 may rotate integrally.

On the upper surface side of the switch case 11, first and second insertion holes 16 and 17 having an arc shape are formed at portions corresponding to the tip portions of the first and second arm portions 14 and 15, The distal end portions of the first and second arm portions 14 and 15 are movably inserted into the first and second insertion holes 16 and 17. In the switch case 11, the first and second contact holder accommodating portions 18 extending in the lateral direction as shown in FIGS. 4 and 5 below the first and second insertion holes 16 and 17 ( 19) is arranged.

In the rear of the switch case 11, as shown in FIGS. 1 and 2, the first substrate 20 and the second substrate 21 are disposed to overlap each other. In this case, the upper second substrate 21 has a shorter length in the longitudinal direction than the lower first substrate 20, and is disposed closer to the lower side as shown in FIGS. 1 and 2.

On the upper surface side of the first substrate 20 protruding from the second substrate 21, the first common fixed contact point B1 as shown in FIG. 1 at a portion corresponding to the first contact holder accommodating portion 18. And a first stationary contact group 22 having a first stationary contact point E1 and a third stationary contact point E3. In the first fixed contact group 22, the first common fixed contact point B1 and the first and third fixed contact points E1 and E3 are arranged in two rows along the left and right directions in FIG.

In addition, on the upper side of the second substrate 21, the second common fixed contact point B2, the second fixed contact point E2, and the fourth fixed contact point E4 are located at a portion corresponding to the second contact holder accommodating portion 19. The second stationary contact group 23 having a) is arranged. Also in this second stationary contact group 23, the second common stationary contact point B2 and the second and fourth stationary contact points E2 and E4 are arranged in two rows along the left and right directions in FIG.

Here, the first common fixed contact point B1 and the second common fixed contact point B2 are electrically connected by a connecting line 24 (see FIG. 6) on the circuit. In addition, each of the other first to fourth fixed contacts E1 to E4 is independent. Further, connector portions 25a and 25b for connecting to the outside are disposed below the first and second substrates 20 and 21 in FIGS. 1 and 2.

In the first contact holder accommodating portion 18, as shown in FIG. 4, a first contact holder 27 having a first movable contactor 26 is disposed to be movable in the horizontal direction, and the second contact holder is provided. Also in the accommodating part 19, the 2nd contact holder 29 which has the 2nd movable contact 28 as shown in FIG. 5 is arrange | positioned so that a movement to the left-right direction is possible. The first movable contact 26 has three contact portions 26a, 26b and 26c arranged in a triangular shape as shown in FIG. 1 and the second movable contact 28 also has three contact portions 28a and 28b. ) 28c forms a triangular arrangement.

A straight guide groove 30 extending in a direction intersecting the first insertion hole 16 is formed in the upper surface portion of the first contact holder 27, and the tip end portion of the first arm portion 14 is formed in the guide groove 30. Is movably inserted. In addition, a linear guide groove 31 extending in a direction intersecting with the second insertion hole 17 is formed in the upper surface portion of the second contact holder 29, and the second arm portion 15 is formed in the guide groove 31. The leading end of is inserted in a movable manner.

Thus, in this case, when the lever 12 is rotated in the direction of arrow (b), the first contact holder 27 moves in the direction of arrow (c) through the first arm portion 14, and at the same time, the second contact Through the arm 15, the second contact holder 29 is adapted to move in the direction of the arrow (d). On the contrary, when the lever 12 is rotated in the opposite direction to the arrow (b), the first contact holder 27 moves in the opposite direction to the arrow (c) direction through the first arm 14. Simultaneously with this, the second contact holder 29 moves in the opposite direction to the arrow d through the second arm 15.

Next, the operation of the above configuration will be described with reference to Fig. 6 showing the connection relationship in each state.

First, when the lever 12 is in the OFF position shown in FIG. 3, the first contact holder 27 is located near the right side of FIG. 3, while the second contact holder 29 is near the left side of FIG. 3. Will be located. In this state, the first movable contactor 26 and the second movable contactor 28 are each positioned at the OFF position shown by solid lines in FIG. 1.

When the first movable contactor 26 is in the OFF position, the contact portion 26b contacts the first fixed contact point E1, and when the second movable contactor 28 is in the OFF position, the contact portion 28b is closed. The second fixed contact point E2 is brought into contact, but the first and second common fixed contact points B1 and B2 are not contacted. This state is all OFF.

When the lever 12 in the OFF position is operated to the first operating position I, the first movable contactor 27 moves in the direction of (C) at the arrow through the first arm portion 14 so that the first movable contactor ( 26 moves to the first operating position I, and the second movable contact 28 also moves to the first direction as the second contact holder 29 moves in the direction of the arrow (d) through the second arm 15. The operating position (I) is reached.

Among these, the first movable contact 26 reaches the first operating position I, so that these contact portions 26a and 26c come into contact with the first common fixed contact point B1 and the first fixed contact point E1. These first common fixed contact points B1 and the first fixed contact point E1 are connected to each other. On the other hand, even when the second movable contact 28 reaches the first operating position I, the contact portion 28b remains in contact with the second fixed contact point E2 and does not change when it is in the OFF position. Therefore, in this state, the first common fixed contact point B1 and the first fixed contact point E1 are connected (see the first operating state I of FIG. 6), and the first operating state I of FIG. It is in the same state.

Similarly, when the lever 12 is operated to the second operating position II, the first movable contactor 26 and the second movable contactor 28 are synchronized to reach the second operating position II.

Even if the first movable contactor 26 reaches the second operating position II, the contact portions 26a and 26c are in contact with the first common fixed contact point B1 and the first fixed contact point E1. The state is not changed when the first operating position (I). On the other hand, when the second movable contact 28 reaches the second operating position II, the contact portions 28a and 28c contact the second common fixed contact point B2 and the second fixed contact point E2, The second common fixed contact point B2 and the second fixed contact point E2 are connected to each other (see the second operating state II in FIG. 6).

At this time, since the first common fixed contact point B1 and the second common fixed contact point B2 are connected by the connecting line 24, as a result, the first and second common fixed contact points B1 and B2 and the first common fixed contact point B2 are connected. The first and second fixed contacts E1 and E2 are connected to each other, and are in the same state as the second operating state II in FIG.

Similarly, when the lever 12 is operated to the third operating position III, the first movable contact 26 and the second movable contact 28 are synchronized to reach the third operating position III.

Among them, the first movable contact 26 reaches the third operating position III, so that these contact portions 26a, 260b, 26c are fixed to the first common fixed contact point B1 and the first and third. In contact with the contacts E1 and E3, these first common fixed contacts B1 and the first and third fixed contacts E1 and E3 are connected to each other (third operating state III in FIG. 6). )Reference). On the other hand, even when the second movable contact 28 reaches the third operating position III, the contact portions 28a and 28c remain in contact with the second common fixed contact point B2 and the second fixed contact point E2. The state and the state do not change when the second operating position (II).

In this state, since the first common fixed contact point B1 and the second common fixed contact point B2 are connected by the connecting line 24, as a result, the first and second common fixed contact points B1 (B2) and the first common contact point. The third fixed contacts E1 to E3 are in contact with each other, and the same state as the third operating state III of FIG.

Similarly, when the lever 12 is operated to the fourth operating position IV, the first movable contact 26 and the second movable contact 28 are synchronized to reach the fourth operating position IV.

Even when the first movable contactor 26 reaches the fourth operating position IV, the contact portions 26a, 26b, and 26c are connected to the first common fixed contact point B1 and the first and third fixed contacts E1. ) And (E3) remain unchanged, and do not change when they are in the third operating position (III). On the other hand, when the second movable contact 28 reaches the fourth operating position IV, these contact portions 28a, 28b, 28c become the second common fixed contact point B2 and the second and fourth fixed contacts ( E2) (E4) is contacted, and these 2nd common fixed contact point B2 and 2nd and 4th fixed contact point E2 (E4) are connected (refer the 4th operating state IV of FIG. 6). ).

In this state, since the first common fixed contact point B1 and the second common fixed contact point B2 are connected by the connecting line 24, as a result, the first and second common fixed contact points B1 (B2) and the first common contact point. The fourth fixed contacts E1 to E4 remain in contact with each other, and are in the same state as the fourth operating state IV in FIG. 7.

According to the embodiment described above, the first and second common fixed contacts B1 (by the first and second fixed contact groups 22 and 23 and the first and second movable contacts 26 and 28) ( Since the number of B2) and the fixed contacts E1 to E4 connected thereto can be sequentially increased, a diode conventionally required is not required.

In addition, since the fixed contact group is divided into the first and second fixed contact groups 22 and 23, there is no need to secure a large space in one place. As shown in the embodiment, the first and second fixed contact groups ( There is also an advantage that the 22 and 23 can be divided into the first and second substrates 20 and 21.

In addition, according to the present embodiment, the first fixed contact group 22 includes the first common fixed contact point B1 and two fixed contacts E1 and E3 corresponding thereto along the moving direction of the first movable contact 26. The first movable contactors 26 are arranged in two rows and the contact portions 26a are in contact with the first common fixed contact point B1 and the two fixed contacts E1 and E3 of the first stationary contact group 22. ), And the second fixed contact group 23 and the second movable contactor 28 also have the first fixed contact group 22 and the first movable contactor 26. By setting it as the same structure, the space which needs to be divided into two sets of a fixed contact group and a movable contact can be made extremely small.

In other words, when dividing the fixed contact group into two sets, it is conceivable to arrange the common fixed contact and the two fixed contacts in three rows along the moving direction of the movable contactor. You lose. On the other hand, in the case of the present embodiment, the space required can be made extremely small by using two rows as described above.

Moreover, since the 1st and 2nd fixed contact groups 22 and 23 are arrange | positioned on each board | substrate 20 and 21, these 1st and 2nd fixed contact groups 22 and 23 are further arranged. There is an advantage that it can be arranged freely.

The present invention is not limited to the above-described embodiment, but can be modified or expanded as follows.

In each stationary contact group 22 (23), three or more may be sufficient as the number of stationary contacts other than common fixed contact point B1 (B2).

The moving direction of the first movable contactor 26 and the second movable contactor 28 may be the same direction.

Whenever the first and second movable contactors 26 and 28 move, the number of fixed contacts connected to the common fixed contacts B1 and B2 is the first fixed contact group 22 side and the second fixed contact group 23. It is not limited to increasing alternately on the side, but may be configured such that one side continuously increases and the other side continuously increases.

According to the invention of claim 1, a diode is not required because the first and second fixed contact groups and the first and second movable contacts can increase the number of common fixed contacts and the fixed contacts connected thereto in sequence. In addition, since the fixed contact group is divided into the first fixed contact group and the second fixed contact group, there is an advantage that it is not necessary to secure a large space in one place.

According to the invention of claim 2, the fixed contact group and the movable contact are divided into two sets, but the required space can be made extremely small.

According to the invention of claim 3, by arranging the first and second stationary contact groups separately on the substrate, the stationary contact groups can be arranged more freely.

Claims (3)

A first and a second fixed contact group having a plurality of fixed contacts having a common fixed contact and a connection order thereof, and having a common fixed contact connected to each other; One operation member operated in several stages, Each of the first and second fixed contact groups is disposed in correspondence with each other, and is moved in a predetermined direction in synchronism with the manipulation of the operation member. It is provided with the 1st and 2nd movable contactor which connects, The first and second fixed contact groups and the first and second movable contact groups sequentially increase the total number of fixed contacts connected to the common fixed contact whenever these first and second movable contacts move in a predetermined direction. Switch device, characterized in that configured to. The method of claim 1, The first and second fixed contact groups are arranged in two rows along the direction of movement of the movable contact corresponding to the common fixed contact and the two fixed contacts corresponding thereto, respectively. And the first and second movable contactors each have three contact portions contacting the common fixed contact of the corresponding fixed contact group and the two fixed contacts. The method according to claim 1 or 2, And a first stationary contact group and a second stationary contact group on the substrate.