CN115083814A - Switching device - Google Patents

Abstract

A switch device, comprising a casing, an operating member partially exposed to the casing, a spring pushing against the operating member, a movable conductor displaced when the operating member is operated, and the spring disposed on the operating member a first pin on the same side of the shell, a second pin and the first pin on both sides of the shell, two resistors connected to the second pin and having different resistance values, and Two connecting conductors between the first pin and the second pin, the first pin is in contact with the movable conductor regardless of whether the movable conductor is displaced, and there is no connection between the two connecting conductors. There are components bridging each other, each of the two connecting conductors connecting only one of the two resistors, the two connecting conductors being spaced along the displacement path of the movable conductor such that the movable conductor is Only one of the two connecting conductors is contacted before and after the displacement to form two conductive paths.

Description

switchgear

technical field

The present invention relates to a switch device, in particular to a switch device that distinguishes signals by the difference in resistance between two conductive paths.

Background technique

With the development of science and technology in the automotive field, today's society has increasing requirements for vehicle control accuracy and driving safety performance, so the development of on-board switches has gradually received attention. In order to improve the signal discrimination, the existing switch devices mostly connect external resistors. However, the assembly space inside the car is limited. The implementation of the external resistors increases the required assembly space of the switch device, which is not conducive to installation. Moreover, since the existing resistors are exposed outside the switch device, manufacturers need to add additional circuit boards for the resistors to install, and at the same time, in order to ensure the operational stability of the resistors, additional designs for the resistors or other components must be added to protect the resistors.

In order to solve the aforementioned problems, most of the existing switch devices set the resistor inside the device, and the switch device manufacturer avoids the resistor from falling off or unable to be assembled stably after being assembled inside the switch device. There is a support frame inside to hold the resistor. However, although the existing support frame is made of plastic material and can be rapidly molded by plastic injection, the existing support frame needs to be additionally assembled with resistors after being manufactured. However, it is still an unavoidable process to attach an additional surface mount resistor inside the switch device, resulting in an inability to shorten the process time.

In addition, most of the existing switch devices do not have the waterproof function, and the electronic components inside the switch device are at risk of being exposed to liquid vapor or liquid. If the liquid vapor enters the inside of the switching device, it will corrode the electronic components over time, resulting in a decrease in the switching sensitivity of the switching device. In addition, due to the small size of the switch device, the electronic components inside the switch device are adjacent to each other. If liquid penetrates into the switch device, the adjacent electronic components will be turned on by the conduction of the liquid, thereby causing the output error of the switch device. connection status. Therefore, if the switch device can be provided with waterproof capability, the service life of the electronic device will be greatly extended.

Furthermore, existing Chinese patents CN 105489429A and CN 204167164U disclose the technical contents of the resistors being arranged inside the switch device. Specifically, the two resistors of the switch device are connected to the conductor inside the device, the switch device determines the conducting loop by the position of the conductive sheet, and the switch device is determined by the resistance value of the resistor on the conducting loop. Differentiate the signal. However, the two resistors on the existing switch device are arranged in series on the same loop. Once one of the two resistors is damaged, the corresponding loop cannot output a signal with a corresponding resistance value. When one of the loops without the two resistors is turned on, it also outputs a signal with no resistance value. As a result, the existing switch cannot determine the difference in the signal, so that the switching device cannot provide control.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to solve the problem caused by the inability to judge the signal difference in the existing switching device.

In order to achieve the above object, the present invention provides a switch device, which includes a casing, an operating member partially exposed to the casing for operation, a spring that pushes against the operating member, and is displaced when the operating member is operated A movable conductor, a first pin located on the same side of the casing as the spring, a second pin located on both sides of the casing with the first pin respectively, located in the casing and connected to the The two resistors connected to the second pin and the two connecting conductors located in the casing and between the first pin and the second pin have different resistance values of the two resistors. A pin is in contact with the movable conductor regardless of whether the movable conductor is displaced or not, there is no component that bridges each other between the two connecting conductors, and each of the two connecting conductors is only connected to the two resistors one of the connecting conductors, the two connecting conductors are spaced apart along the displacement path of the movable conductor, so that the moving conductor will only be in contact with one of the two connecting conductors before and after the displacement, Instead, two conductive paths are formed.

In one embodiment, the two resistors are not disposed within the projection range of the movable conductor.

In one embodiment, the two resistors are arranged in parallel with each other and spaced up and down.

In one embodiment, the two resistors are surface mount resistors, respectively.

In one embodiment, the casing is composed of a base and a cover matched with the base, and the first pin and the second pin penetrate through the base and are partially exposed outside the casing.

In one embodiment, the two connecting conductors are arranged at intervals up and down, and one of the two connecting conductors close to the base is fixed on the base.

In one embodiment, the base is formed with a support wall for supporting at least the two connecting conductors and the second pin.

In one embodiment, the support wall defines a gap for the two resistors to be disposed in the gap.

In one embodiment, the support wall is formed with a partition rib separating the movable conductor and the two resistors, and a partition block between the two connecting conductors.

In one embodiment, the base is formed with a protrusion for positioning the spring.

In one embodiment, the first pin includes a connecting section extending out of the housing, a turning section extending integrally from the connecting section and embedded in the base, and extending from the turning section integrally with the movable section An active segment in contact with the conductor, the connecting segment does not overlap with the axis where the active segment is located.

In one embodiment, the connecting section of the first pin, the spring and the operating member are located on the same axis.

In one embodiment, the switch device includes a movable block provided in the casing and provided for the operating member, and the movable block is formed with a fitting groove for one end of the spring to abut against and a mounting groove for the movable conductor to be provided with. an assembly opening.

Through the aforementioned implementation of the present invention, compared with the prior art, the present invention has the following characteristics: the present invention is provided with one of the two resistors on the two conductive paths respectively, and the resistance values of the two resistors are different, and the switching device During implementation, the signal difference is specifically distinguished by the difference in the resistance values of the two resistors. Moreover, when one of the two conductive paths cannot be turned on, the switching device can still distinguish signals by the difference in resistance between the two conductive paths.

Description of drawings

FIG. 1 is a schematic exploded view of the structure of an embodiment of the present invention.

FIG. 2 is a schematic front view of some components of an embodiment of the present invention.

FIG. 3 is a schematic cross-sectional structure diagram of an embodiment of the present invention.

FIG. 4 is a schematic diagram of the implementation of an embodiment of the present invention.

FIG. 5 is a schematic circuit diagram of an embodiment of the present invention.

FIG. 6 is another implementation schematic diagram of an embodiment of the present invention.

FIG. 7 is another schematic circuit diagram of an embodiment of the present invention.

List of reference signs

10 Switchgear

11 Shell

111 Assembly port

112 base

113 Cover

114 bump

115 Support Wall

116 Notch

117 Separator ribs

118 Dividers

13 Operating elements

131 Caps

132 Mounting rod

14 spring

15 Moving conductors

151 lugs

152 Auxiliary Assembling Arm

16 Pin 1

161 Connection segment

162 Steering segment

163 Action section

164 axis

165 axis

17 The second pin

18 First resistor

19 Second resistor

21 The first connecting conductor

22 Second connecting conductor

23 active blocks

232 Mounting slot

233 Assembly opening

234 junction block

235 Limit hole

Detailed ways

The detailed description and technical content of the present invention are now described as follows in conjunction with the accompanying drawings:

Please refer to FIGS. 1 to 4 , the present invention provides a switch device 10 , the switch device 10 includes a housing 11 , an operating member 13 , a spring 14 , a movable conductor 15 , a first pin 16 , a first Two pins 17 , two resistors 18 , 19 and two connecting conductors 21 , 22 . Specifically, the housing 11 is formed of an insulating material and provides the first pin 16 and the second pin 17 to be assembled. The housing 11 houses the two resistors 18 and 19 and the two connecting conductors 21 , 22 to protect the two resistors 18 , 19 and the two connecting conductors 21 , 22 . In one embodiment, the housing 11 is formed with an assembly port 111 that cooperates with the operating member 13 , the operating member 13 is assembled to the assembly port 111 and partially exposed outside the housing 11 for operation, the operating member 13 It can be displaced in the direction of the side wall of the housing 11 when being operated. The spring 14 is disposed facing the operating member 13 , one end of the spring 14 is supported on the bottom inner wall of the housing 11 , and the other end is abutted against the operating member 13 , the spring 14 applies a direction to the operating member 13 toward the assembly port 111 The spring 14 is compressed when the operating member 13 is operated, and when the operating member 13 is released from the compressed state, the operating member 13 is restored to the non-operated state with its accumulated force. state at the time. The movable conductor 15 is made of conductive material. The movable conductor 15 is assembled with the operating member 13 . The movable conductor 15 is driven when the operating member 13 is operated and also moves along the side wall direction of the housing 11 . bit.

Referring again to FIGS. 1 to 4 , the first pin 16 and the spring 14 are disposed on the same side of the housing 11 , and one end of the first pin 16 is not shielded by the housing 11 and extends to the outside of the housing 11 , So that one end of the first pin 16 exposed outside the casing 11 can be used for at least one external device (not shown in the figure) to be assembled, and the other end of the first pin 16 is disposed in the casing 11 to connect with the external device (not shown in the figure). The first pin 16 is in contact with the movable conductor 15 regardless of whether the movable conductor 15 is displaced or not. The first pin 16 is used for the movable conductor 15 to slide when driven by the operating member 13 Moved thereon, the first pin 16 is called a COM pin by those skilled in the art. The second pin 17 is disposed on the side of the housing 11 where the first pin 16 is not provided. The second pin 17 and the first pin 16 are located on two opposite sides of the housing 11 respectively. The second pins 17 are also partially exposed outside the casing 11 and partially protected by the casing 11 . The two resistors 18 and 19 are connected to the portion of the second pin 17 located in the housing 11 . In one embodiment, the two resistors 18 and 19 are surface mount resistors, respectively. The two resistors 18 and 19 can be assembled to the second pin 17 by surface adhesion, respectively. The two resistors 18 and 19 are not connected to each other. After the two resistors 18 and 19 are respectively turned on, the switch device 10 obtains the resistance values of the first pin 16 and the second pin 17 , and then In this embodiment, the resistance values of the two resistors 18 and 19 are set to be different, that is to say, when the two resistors 18 and 19 are respectively turned on, the first pin 16 and the The resistance values of the second pins 17 can be measured to be different, thereby increasing the signal recognition of the switching device 10 . The two connecting conductors 21, 22 are located on the side of the two resistors 18, 19 that are not connected to the second pin 17, and each of the two connecting conductors 21, 22 is connected to the two resistors, respectively One of 18, 19, the two connecting conductors 21, 22 are located between the first pin 16 and the second pin 17 after the assembly is completed, and the two connecting conductors 21, 22 are in the movable conductor. 15 respectively forms a conductive relationship with the movable conductor 15 during the displacement process, so that the two connecting conductors 21 and 22 can conduct the first pin 16 and the second pin 17 . Moreover, the two connecting conductors 21 and 22 are arranged at intervals along the displacement path of the movable conductor 15 , and there is no component bridging each other between the two connecting conductors 21 and 22 , so that the movable conductor 15 is moving Both before and after the displacement is conducted with only one of the two connecting conductors 21 and 22, thereby forming two conductive paths.

In addition, the two conductive paths will be explained in detail later, the two resistors 18, 19 are divided into a first resistor 18 and a second resistor 19, and the two connecting conductors 21, 22 are divided into connections A first connecting conductor 21 of the first resistor 18 and a second connecting conductor 22 connecting the second resistor 19, the two conductive paths are divided into conducting the first resistor 18 and the first connecting conductor 21 , and a second conductive path connecting the second resistor 19 and the second connecting conductor 22 . Meanwhile, assuming that the operating member 13 is not operated initially, the movable conductor 15 is not affected by the operating member 13 to contact the first connecting conductor 21 . After the operating member 13 is operated, the spring 14 is compressed and the movable conductor 15 is driven. One end turns from the first connecting conductor 21 to contact the second connecting conductor 22 , and the first pin 16 conducts the second connecting conductor 22 , the second resistor 19 and the second connecting conductor 22 through the movable conductor 15 at this time. The second pin 17, in other words, the movable conductor 15 turns on the second conductive path when the operating member 13 is operated, and the switch device 10 generates a resistance value corresponding to the second conductive path, As shown in Figure 6 and Figure 7. Once the operating member 13 is released from the operated state, the spring 14 is no longer pressed by the operating member 13 , the spring 14 releases its elastic force and pushes the operating member 13 to reset, and the operating member 13 is pressed by the spring 14 and moves toward the Facing the direction displacement of the assembly port 111 , the movable conductor 15 is driven by the operating member 13 and one end of the movable conductor 15 slides on the first pin 16 in the opposite direction, and the other end of the movable conductor 15 is driven by the second connecting conductor 22 Turning to contact the first connecting conductor 21, at this time the first pin 16 conducts the first connecting conductor 21, the first resistor 18 and the second pin 17 through the movable conductor 15, in other words In other words, the movable conductor 15 no longer conducts the second conductive path when the operating member 13 is released from the operated state, but conducts the first conductive path, and the switch device 10 generates a corresponding first conductive path. The resistance value is shown in Figure 4 and Figure 5.

In addition, as can be seen from the above, the second pin 17 is commonly referred to as the NO pin by those skilled in the art. Moreover, in the switch device 10 of the present invention, the two resistors 18 and 19 are no longer arranged outside the casing 11 , but are arranged inside the casing 11 and are respectively connected to the second pins 17 , thereby reducing the size of the switch The installation space required for the device 10 is reduced, and the present invention does not need to additionally protect the first resistor 18 and the second resistor 19 , so as to reduce the cost of the switch device 10 . Furthermore, compared with the prior art, the switch device 10 of the present invention is located on the two conductive paths through the first resistor 18 and the second resistor 19 respectively, and the first resistor 18 and the second resistor The resistance values of 19 are different, so that the switch device 10 can specifically determine the signal difference during implementation. Furthermore, when one of the two conductive paths cannot be turned on, the switch device 10 can still determine the signal difference by comparing the resistance difference between the two conductive paths.

Referring again to FIGS. 1 to 4 , in one embodiment, the first connecting conductor 21 is located within the projected range of the second connecting conductor 22 , and the second connecting conductor 22 is located within the projected range of the first connecting conductor 21 . Specifically explained, the first connecting conductor 21 and the second connecting conductor 22 are arranged at intervals up and down, and the distance between the first connecting conductor 21 and the second connecting conductor 22 is not constant. In this embodiment, the level of the first connecting conductor 21 is higher than the level of the second connecting conductor 22 , that is, the first connecting conductor 21 is not driven by the operating member 13 when the movable conductor 15 is The second connecting conductor 22 contacts the movable conductor 15 when the movable conductor 15 is driven by the operating member 13 .

In addition, the first resistor 18 and the second resistor 19 are not located within the projection range of the movable conductor 15, and the first resistor 18 and the second resistor 19 are located between the first connecting conductor 21 and the The second connecting conductor 22 is away from the side of the movable conductor 15 , the first resistor 18 and the second resistor 19 are not connected to the movable conductor 15 , the first resistor 18 and the second resistor 19 are respectively A conductive relationship is formed with the movable conductor 15 through one of the first connecting conductor 21 and the second connecting conductor 22 . More specifically, the first resistor 18 and the second resistor 19 are parallel to each other, and the first resistor 18 and the second resistor 19 are arranged at intervals up and down. In this embodiment, since the first resistor 18 is connected to the first connecting conductor 21, the second resistor 19 is connected to the second connecting conductor 22, and the level of the first connecting conductor 21 is higher than the second connecting conductor 21. The conductors 22 are connected so that the level of the first resistor 18 is higher than the level of the second resistor 19 . When the operating member 13 does not drive the movable conductor 15 to move, the first resistor 18 is turned on, the switch device 10 provides the first conductive path, and the operating member 13 compresses the spring 14 and drives the movable conductor 15 When the movable conductor 15 is displaced, the second resistor 19 is turned on, and the switching device 10 provides the second conduction path.

On the other hand, please refer to FIG. 1 to FIG. 4 , in one embodiment, the housing 11 of the present invention is composed of a base 112 and a cover 113 . Specifically, one side of the base 112 is provided for the first pin 16 to be provided and the first pin 16 penetrates through the base 112 , and the other side of the base 112 is provided for the second pin 17 to be provided And make the second pin 17 penetrate the base 112 . Moreover, the side of the base 112 provided with the first pin 16 is for the end of the spring 14 not facing the operating member 13 to abut against it. In one embodiment, the base 112 may be formed with a A protrusion 114 of the spring 14 is positioned, and the protrusion 114 is used to restrain the spring 14 from falling off. Furthermore, since the second connecting conductor 22 is closer to the base 112 than the first connecting conductor 21 , the base 112 is further provided for the second connecting conductor 22 to be fixed on the base 112 on the side with the second pin 17 . , in one embodiment, the second connecting conductor 22 can actually be formed by NC pins commonly called by those skilled in the art. Specifically, during assembly, the NC pins penetrate through the base 112 and are fixed to the base 112 , the part of the NC pin is exposed on the side of the base 112 away from the cover 113 , and then the part of the NC pin exposed outside the base 112 is removed, so that the NC pin is arranged in the housing 11 The portion of the second connecting conductor 22 is formed. Moreover, in one embodiment, the base 112 can be joined to the cover 113 by laser welding, so that the waterproof performance of the base 112 and the cover 113 can be improved. In another implementation, the base 112 and the cover 113 may also be bonded with a glue (not shown in the figure) to enhance the waterproofness of the switch device 10 .

Further, the base 112 is formed with a supporting wall 115 for fixing the second pin 17 , the first connecting conductor 21 and the second connecting conductor 22 . The support wall 115 can be directly integrally formed on the base 112 . In one embodiment, a notch 116 for the first resistor 18 and the second resistor 19 is formed on the support wall 115 , and the notch 116 allows the second pin 17 , the first connecting conductor 21 and the The second connecting conductor 22 is not completely shielded by the supporting wall 115, so that the first resistor 18 can connect the second pin 17 and the first connecting conductor 21, and the second resistor 19 can connect the first connecting conductor 21. The two pins 17 are connected to the second connecting conductor 22 . Moreover, the present invention specifically simplifies the manufacturing process of the switch device 10 , the switch device 10 can simultaneously injection mold the notch 116 when molding the support wall 115 , thereby reducing the manufacturing time of the switch device 10 and facilitating the switch Fabrication of device 10.

In addition, referring to FIGS. 1 to 3 again, in one embodiment, the support wall 115 is formed with a partition rib 117 and a partition block 118 , and the partition rib 117 is used to isolate the movable conductor 15 from the first resistor 18 and the The second resistor 19 prevents the movable conductor 15 from contacting the first resistor 18 and the second resistor 19 during the displacement process. Moreover, the spacer block 118 is located between the first connection conductor 21 and the second connection conductor 22 , and the spacer block 118 is used to isolate the first connection conductor 21 and the second connection conductor 22 to avoid the first connection conductor 21 is in direct contact with the second connecting conductor 22 .

On the other hand, in an embodiment, the first pin 16 has a connecting section 161, a turning section 162 and an acting section 163, wherein the connecting section 161 protrudes from the housing 11 and is used for the at least one external device For connection, the turning section 162 extends from the connecting section 161 toward the cover body 113 , and the turning section 162 is embedded in the base 112 . In one embodiment, in order to improve the stability of the assembly of the steering section 162 and the base 112 , the steering section 162 may be implemented in a wave-like structure to increase the assembly area of the steering section 162 and the base 112 . Moreover, the action section 163 extends from the turning section 162 toward the cover body 113 and is shielded by the cover body 113 . The action section 163 is used to connect the movable conductor 15 . The action section 163 is parallel to the connection section 161 but on different axes 164 , 165 . Moreover, the acting section 163 is parallel to the spring 14 , and the spring 14 , the connecting section 161 and the operating member 13 are located on the same axis 165 .

On the other hand, in one embodiment, the operating member 13 includes a cap 131 and a mounting rod 132 on which the cap 131 is sleeved. The cap 131 can be hot riveted adjacent to the housing 11 . Around the assembly opening 111 , the cap 131 is mounted on the mounting rod 132 . Moreover, the switch device 10 includes a movable block 23 disposed in the housing 11 , and the movable block 23 is connected to the operating member 13 and positions the spring 14 . In detail, the movable block 23 is formed with an assembly groove 232 and an assembly opening 233 , the assembly groove 232 is formed on the side of the movable block 23 away from the operating member 13 , and the assembly groove 232 is disposed facing the spring 14 . In cooperation with the spring 14 , the assembling groove 232 is used for restraining the spring 14 and for one end of the spring 14 to abut against. The assembly opening 233 is for the movable conductor 15 to be disposed therein, so that the movable conductor 15 is driven by the movable block 23 when the operating member 13 is operated. In one embodiment, the movable block 23 is provided with a set of connecting blocks 234 in the assembly opening 233 . The connecting blocks 234 are assembled with the movable conductor 15 to fix the movable conductor 15 on the movable block 23 . Moreover, the present invention is to assemble the movable conductor 15 and the movable block 23 more stably, the movable block 23 is formed with at least one restriction hole 235, the movable conductor 15 is formed with at least one lug 151, the at least one restriction The hole 235 is matched with the at least one lug 151 , and the at least one lug 151 is assembled in the at least one restriction hole 235 to improve the assembly stability of the movable conductor 15 and the movable block 23 . In yet another embodiment, the movable conductor 15 is formed with at least one auxiliary assembly arm 152 assembled with the movable block 23 , and the at least one auxiliary assembly arm 152 assists in lifting the movable conductor 15 and the movable block 23 . Assembly stability.

Claims (14)

1. A switchgear, characterized in that the switchgear comprises: a shell; an operating member partially exposed to the housing for operation; a spring, pushing against the operating member; a movable conductor displaced when the operating member is operated; a first pin, arranged on the same side of the casing as the spring, the first pin is in contact with the movable conductor regardless of whether the movable conductor is displaced or not; a second pin, located on both sides of the casing respectively with the first pin; two resistors located in the casing and connected to the second pin, and the resistance values of the two resistors are different; and Two connecting conductors, located in the housing and between the first pin and the second pin, there is no component that bridges each other between the two connecting conductors, the two connecting Each of the conductors is connected to only one of the two resistors, and the two connecting conductors are spaced along the displacement path of the movable conductor so that the movable conductor is displaced before and during displacement. Each bit then contacts only one of the two connecting conductors, forming two conductive paths. 2 . The switch device according to claim 1 , wherein the two resistors are not arranged within the projection range of the movable conductor. 3 . 3 . The switch device according to claim 2 , wherein the two resistors are parallel to each other and arranged at intervals up and down. 4 . 4 . The switch device according to claim 1 , wherein the two resistors are surface-mounted resistors, respectively. 5 . 5. The switch device according to any one of claims 1 to 3, wherein the housing is composed of a base and a cover matched with the base, and the first pins The second pin penetrates through the base and is partially exposed outside the casing. 6 . The switch device according to claim 5 , wherein the two connecting conductors are arranged at intervals up and down, and one of the two connecting conductors close to the base is fixed on the base. 7 . 7 . The switch device according to claim 6 , wherein the base is formed with at least one supporting wall for supporting the two connecting conductors and the second pin. 8 . 8 . The switch device of claim 7 , wherein the support wall defines a gap for the two resistors to be disposed in the gap. 9 . 9 . The switchgear according to claim 8 , wherein the support wall is formed with a partition rib for isolating the movable conductor and the two resistors, and is located between the two connecting conductors. 10 . a separator block. 10. The switchgear of claim 5, wherein the base is formed with a projection for positioning the spring. 11 . The switch device according to claim 10 , wherein the first pin comprises a connecting section extending out of the housing, a connecting section extending integrally from the connecting section and embedded in the base. 12 . A turning section, and an acting section integrally extending from the turning section and in contact with the movable conductor, the connecting section and the axis on which the acting section is located do not overlap. 12 . The switch device according to claim 11 , wherein the connecting section of the first pin, the spring and the operating member are located on the same axis. 13 . 13 . The switch device according to claim 12 , wherein the switch device comprises a movable block provided in the casing and provided for the operating member, and the movable block is formed with the spring for the spring. 14 . An assembly groove against which one end of the movable conductor abuts and an assembly opening for the movable conductor to be provided. 14. The switch device according to any one of claims 1 to 3, wherein the switch device comprises a movable block arranged in the casing and provided for the operating member, and the movable block is arranged on the movable block. A fitting groove for one end of the spring to abut against and a fitting opening for the movable conductor to be formed are formed.

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