CN1126362A

CN1126362A - Switch which can be mounted on instrument panel of motor vehicle and manufacture of same

Info

Publication number: CN1126362A
Application number: CN 95104371
Authority: CN
Inventors: 沃尔夫冈·普里塞姆特
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-28
Filing date: 1995-03-28
Publication date: 1996-07-10
Anticipated expiration: 2015-03-28
Also published as: EP0675515B1; CN1037640C; DE4410771A1; EP0675515A3; DE4410771B4; EP0675515A2

Abstract

The invention relates to a switch device which can be arranged on an instrument disk of vehicles and a manufacturing method of the switch device. The device comprises a switch structure which is movable under a casing. The device is provided with a switch contact, a control component used for controlling the switch mechanism, a printed circuit board arranged on the switch structure, a printed circuit connected with the switch contact and attached structural components, a light supply connected with the printed circuit board to irradiate the control component from back and a holding part used for holding the printed circuit board provided with the printed circuit and the structural components.

Description

Can be installed in switching device on the instrument panel of motor vehicle and preparation method thereof

The present invention relates to a switching device, particularly can be installed in the switching device on the panel board of motor vehicle, have a movable switch junctions member in housing, it has switch contact and is loaded with an operating element that is used to operate this switching device; Also has a printed circuit board (PCB) of on the switch junctions member, settling, it is loaded with the printed circuit that is connected with switch contact and affiliated structural detail and has a light source that settle and that be connected with printed circuit board (PCB) on the switch junctions member, and it is used at back irradiation operating element; Also relate to a method of making this switching device.

In the disclosed similar switching device of DE-OS4206335, this printed circuit board (PCB) is the U-shaped bending, and the end of its shank respectively is equipped with a light source framework.To assemble mutually as the printed circuit board (PCB) of the switch junctions member of skateboard setting and U-shaped bending is suitable trouble, because be provided with the framework that is used for wherein settling light source in the end of circuit board.In addition, this printed circuit board (PCB) then bears burdens owing to the light source framework that freely stretches out setting, and this is for the high-effect generation adverse influence of the printed circuit that is provided with on printed circuit board (PCB).

The switching device of an other affiliated type is open in DE-AS2634697.Wherein, fixed a socket that is used for bulb in the bottom of housing, it runs through this as the switching member of skateboard setting and the printed circuit board (PCB) of settling thereon with protective cover.Except the labyrinth of this printed circuit board (PCB), also cause the enlarged areas of circuit board like this and and then cause the volume of whole switching device to increase.This known switches Unit Installation also is quite to bother, because bulb and its socket must push this housing from bottom, be electrically connected then, insert this skateboard from the top with the printed circuit board (PCB) of pore structure, then with from the outstanding convex shoulder that contacts of slide plate be connected and have bulb.

To a modern switching device, particularly switching device requirement that can be installed on the instrument panel of motor vehicle is the centrality of height to be arranged to save lead, cramped construction as much as possible again, and assembling simultaneously is cheap convenient.

Task of the present invention is, creates switching device and preparation method thereof, and it can satisfy top requirement in an advantageous manner.

Task of the present invention at the switching device part is to be solved by the characteristic that proposes a kind of switching device.That is: this device has a movable switch junctions member in housing, and it has switch contact and is loaded with an executive component that is used to handle this switching device; Also has a printed circuit board (PCB) of on the switch junctions member, settling, it is loaded with the printed circuit that is connected with switch contact and affiliated structural detail and has a light source that settle and that be connected with printed circuit board (PCB) be used at back irradiation operating element on the switch junctions member, it is characterized in that: a keeper is set, its ccontaining printed circuit board (PCB) that has printed circuit and structural detail, at keeper facing to being equipped with light source on the upper side of operating element, and this keeper and printed circuit board (PCB) and be attached thereto the light source that connects and insert in this switch junctions member as the unit of assembled in advance.

But just successfully realize the unit of an assembled in advance by frame mode of the present invention, it is except also needing to be connected to this printed circuit board (PCB) on the switch contact, all electric functions, comprise one or more be used for all uniting from the light source of back irradiation operating element be integral body.This unit that can give assembling earlier can be assembled in simple mode, can check earlier in case of necessity, and then insert in the switch junctions member.This printed circuit board (PCB), because it is placed in firm keeper itself, thus avoid the damage of machinery, and then additionally the high degree of motion reliability of switching device of the present invention is contributed.This switching device can be very compact and have enough multi-functional organization plan in a word.This switching device can also be arranged to the structure (switching member with respect to housing for axially movable) of push-button switch device, the structure of tumbler switch (switching member is deflective with respect to housing), the perhaps structure of rotation switch device (switching member is rotating with respect to housing).The function of the printed circuit of settling on printed circuit board (PCB) and affiliated structural detail and light source or a plurality of light sources can be different type.For example this switching device can derailing switch of the same type as is well known equally be an alarm flashing switch device with time switch of set one, and this relay is used for photoflash lamp.This switching device can also be one and be used for disk heater and minute surface heater and have the relay of set one and the switching device of timer.In addition, it also can be that an optical switch device is used for the startup operation of different light rays and function of relay or the like is arranged.

In the present invention is directed to an embodiment of switching device, this printed circuit board (PCB) can assemble on the one hand simply, also very safe and reliable on the other hand and settle from each side with being protected.

Another favourable feature scheme of the present invention, that is, as the bottom execution mode of the keeper of frame structure.

Use another feature scheme of the present invention and just can realize, keeper is being inserted under the situation of switch junctions member, can make printed circuit board (PCB) automatically reach contact and connect.

Adopt another feature scheme of the present invention, just simply mode makes keeper realize that on the switch junctions member one is installed reliably.

Another feature scheme of the present invention has been described the preferred concrete structure setting that is used for from the device of back irradiation operating element, simultaneously, also can save reflector; And obtain different light images with respect to the position of contact according to the circuit of this switching device or printed circuit.

Of the present invention another is at such switching device embodiment, and promptly it is consistent with regard to the holding location structure aspect of switch junctions member and the switching device of DE3145803C2.This holding location structure can also be applied in the switching device of the same type according to DE-OS4206335.According to the invention requirement, keeper is also finished the function of additional gearshift.

That is to say, the present invention proposes a kind of switching device, particularly can be installed in the switching device in the panel board of motor vehicle, have a movable switch junctions member in housing, it has switch contact and is loaded with an executive component that is used to handle this switching device; Also has a printed circuit board (PCB) of on the switch junctions member, settling, it is loaded with the printed circuit that is connected with switch contact and affiliated structural detail and has a light source that settle and that be connected with printed circuit board (PCB) be used at back irradiation operating element on the switch junctions member, it is characterized in that: a keeper is set, its ccontaining printed circuit board (PCB) that has printed circuit and structural detail is inserted in this switch junctions member as the unit of assembled in advance facing to being equipped with light source on the upper side of operating element and reaching the light source that is connected with this circuit board with this printed circuit board (PCB) at it.

Wherein, this keeper be one have the bottom, the frame structure of cap and two opposite opposed sidewalls; And this opposite opposed side wall inner surfaces has guiding structural, wherein can push printed circuit board (PCB).

Wherein, this bottom has the structure of fluting, can allow the contact convex shoulder of switch contact to stretch out by it, and this convex shoulder is connected with the printed circuit of printed circuit board (PCB).

Wherein, this contact convex shoulder by elastic tension rest on the corresponding contact surface of printed circuit board (PCB) and be connected with this printed circuit.

Wherein, this keeper has the projection of side direction, and itself and the clamping of switch junctions member are located.

Wherein, this light source is a light-emitting diode structure, and its connection lead is connected with the printed circuit of printed circuit board (PCB) by connecting lead.

Wherein, this keeper is made by the plastics of light.

Wherein, a plurality of light-emitting diodes are placed on the upper side of cap.

Wherein, this switch junctions member can be done vertical leading motion in housing, simultaneously, a stud shaft of fixing with housing stretches out by the switch junctions member from bottom, and its free end be equipped with one axially on relatively this stud shaft for fixing but can be around the pin of stud shaft rotational, this pin constitutes a gearshift with two mutual opposed drive mechanism faces, be used for the switch junctions member is determined to it is characterized in that two different positions: a drive mechanism face is arranged in the bottom side of keeper.

At the invention task of method part, be to solve by the manufacture method that proposes a kind of switching device.This method feature be with structural detail equipment and insert in this keeper with the printed circuit board (PCB) that printed circuit is made; Light source is installed on the keeper and with printed circuit board (PCB) is connected; The keeper that printed circuit board (PCB) and light source are housed is installed on the switch junctions member; The contact convex shoulder that stretches out from the switch junctions member of switch contact is connected with this printed circuit board (PCB).The enforcement of this method is simple especially, can be manual, or automated procedures realized and be with low cost.

Set forth the present invention by the embodiment in the sketch and other details below.It shows:

Fig. 1 is the end view of a switching device band partial cutaway,

Fig. 2 be the II-II plane by Fig. 1 switching device cross sectional view and

Fig. 3 is the upward view of keeper.

This switching device is made of 4 structure member assemblings altogether, that is housing 20, wherein, construction of switch parts 40 ground leading that can travel longitudinally, these parts 40 for example are connected with an operating element 60 by the holding location structure and a keeper 80 are installed therein.

Except keeper 80, this switching device is consistent with the derailing switch among the DE-OS4206335 with regard to its basic structure, therefore it is only made Short Description.

This housing 20 has a shell 22, and it is fixed in the opening of a distribution panelboard 24.This housing shell 22 edge regions under it has fluting 26, and by these flutings, this shell 22 just can tighten with the corresponding protuberance elasticity of a bottom parts 28.Be extended with contact tongue 30 so that this switching device is plugged on the corresponding consent of a motor vehicle from the bottom.Be appreciated that this contact tongue can surround them by one and protected with the clamshell that bottom parts 28 is made one.This contact tongue 30 runs through bottom parts 28 extensions and constitutes conductor rail 32, is extended with the projection 34 that is made of plastics from conductor rail 32, and they have determined according to the position of the switch, whether have an electrical connection between derailing switch contact 42 and contact track 32.This switch contact 42 stretches out from the bottom 44 of switching member 40, and runs through this bottom and finish with the form of contact convex shoulder 46.This switch junctions member 40 has two sidewalls 48, and they import in the housing shell 22 by protuberance 50 (Fig. 2).For the bridge piece 52 of Y shape interconnects, therefore, this switch member 40 is firm members own to this sidewall 48 by overall, and at its 40 place, this contact convex shoulder is approaching easily.

This keeper 80 is closures, totally is the frame structure of rectangle, and the madial wall that is oppositely arranged of its sidewall 82 itself has guiding structural 84, wherein pushes a printed circuit board (PCB) 86 that is loaded with printed circuit and electronics or electric structure element.The bottom 88 (Fig. 3) of this keeper 80 has fluting 90 and protuberance 92.This fluting 90 is in ccontaining contact convex shoulder 46, and this convex shoulder 46 welds with the corresponding joint of circuit board 86, perhaps rests on these joints by the corresponding structure measure.This protuberance 92 is used to make keeper 80 and the root clamping location of switch junctions member 40 at Y shape bridge piece 52.

Upper surface facing to operating element 60 in the cap 93 of the keeper 80 that this totally is made of the plastics of light is equipped with the additional structure that holds photodiode 94.The connecting line 95 of this light emitting diode 94 runs through cap 93 (Fig. 2) with connecting line 96 welding.By lead 96, this diode is connected to again on the printed wire of printed circuit board (PCB) 86.Be appreciated that this connecting line 96 can save, as long as this moment, connecting line 95 has enough length.

This light emitting diode 94 is so to be placed in the cap 93 of keeper 80 or upper side, promptly they according to the luminous irradiation of target call, and the function corresponding signal is being represented in zone 62 to the transmission region 62 that is provided with in operating element 60.

And the function of printed circuit is known, therefore, and for example can be about this content with reference to DE-OS4296335.

Make switching member 40 realize that with respect to housing 20 mechanism of mobilities is consistent with DE3145803C2 and be that this makes Short Description.Fix a stud shaft 36 on bottom parts 28, it passes the bottom 44 of switching member 40 and is equipped with a pin 38 in their end, and this post 38 turns on stud shaft 36 but can not settle with moving axially.This pin 38 can be used with tooth drive mechanism face 39a and tooth drive mechanism face 39b (Fig. 3) who is provided with in the bottom side of keeper 80 of a toothed different depth that is provided with in bottom 44.Between the bottom 44 of the bottom parts 28 of housing 20 and switching member 40, acting on a compression spring of not describing.Be used to determine that two entire mechanism that limit the position of the switch of this switching device are known and therefore no longer go on to say.

The assembling of the switching device of this description is as described below:

Have contact tongue 30 and the bottom parts 28 that contacts track 32, connect by stud shaft 36 and pin 38 and switching member 40, like this, the switch performance that is the formation of the switching device that relative motion determined by two structure members.

In keeper 80, the printed circuit board (PCB) 86 with making finishes is equiped with connecting line 96 in case of necessity, pushes wherein.The light emitting diode of settling in side on the keeper 80 94 is connected on the printed circuit board (PCB) 86 by connecting line 96 in case of necessity.Here relate to one and give first assembled construction parts, it has barrier propterty ground switching circuit structural member ccontaining motor or macrostructure and be equipped with the remainder that has other electronic component in the printed circuit in the mode of safe and reliable barrier propterty between circuit board 86 and cap 93, integrated circuit for example, they be positioned at the bottom 88 of keeper 80 and circuit board 86 this.This whole structure member is inserted neutralize holding therein location of structural member 40 from the top.Just the shift pattern of switching device can have been determined by the toothing surface 39b that at this moment settles according to functional requirement in the bottom side of keeper 80.

This contacts convex shoulder 46, when it is inserted in the keeper 80 and can not automatically finish the structure of contact performance, should with printed circuit board (PCB) 86 on weld for the connector of its setting.

From now on, this housing shell 22 can be plugged on the bottom parts 28 and clamping location with it.Then, this operating element 60 is planted on the switch junctions member 40.

This switching device has the performance reliability of obvious compact structure and height and by simple assembling, promptly is plugged on the distribution board of a motor vehicle or the panel board 24 or in the perforate of any other setting and just can finishes the operation preparation.

Claims

1, switching device, particularly can be installed in the switching device in the panel board of motor vehicle, have a movable switch junctions member (40) in housing (20), it has switch contact (42) and is loaded with an executive component (60) that is used to handle this switching device; Also has a printed circuit board (PCB) (86) of going up arrangement at switch junctions member (40), it is loaded with the printed circuit that is connected with switch contact and affiliated structural detail and has one and go up the light source of settling and be connected with printed circuit board (PCB) (86) (94) at switch junctions member (40) and be used at back irradiation operating element (60), it is characterized in that: a keeper (80) is set, its ccontaining printed circuit board (PCB) (86) that has printed circuit and structural detail is inserted as the unit of assembled in advance in this switch junctions member (40) facing to being equipped with light source (94) on the upper side of operating element (60) and reaching the light source that is connected with this circuit board with this printed circuit board (PCB) in its (80).

2, by the described switching device of claim 1, it is characterized in that: this keeper (80) is one and has bottom (88), the frame structure of cap (93) and two opposite opposed sidewalls (82); And this opposite opposed side wall inner surfaces has guiding structural (84), wherein can push printed circuit board (PCB) (86).

3, by the described switching device of claim 2, it is characterized in that: this bottom (88) have the structure of fluting (90), can allow the contact convex shoulder (46) of switch contact (42) to stretch out by it, this convex shoulder (46) is connected with the printed circuit of printed circuit board (PCB) (86).

4,, it is characterized in that by the described switching device of claim 3: this contact convex shoulder (46) by elastic tension rest on the corresponding contact surface of printed circuit board (PCB) (86) and be connected with this printed circuit.

5, by one of claim 1 to 4 described switching device, it is characterized in that: this keeper (80) has the projection (92) of side direction, and itself and the clamping of switch junctions member are located.

6, by one of claim 1 to 5 described switching device, it is characterized in that: this light source is the structure of light-emitting diode (94), and its connection lead (95) is connected with the printed circuit of printed circuit board (PCB) (86) by connecting lead (96).

7, by one of claim 1 to 6 described switching device, it is characterized in that: this keeper (80) is made by the plastics of light.

8, by claim 2 or 7 described switching devices, it is characterized in that: a plurality of light-emitting diodes (94) are placed on the upper side of cap (93).

9, by one of claim 1 to 7 described switching device, wherein, this switch junctions member (40) can be done vertical leading motion in housing (20), simultaneously, a stud shaft (36) of fixing with housing stretches out by switch junctions member (40) from bottom, and its free end be equipped with one axially on relatively this stud shaft for fixing but can be around the pin (38) of stud shaft rotational, this pin (38) and two mutual opposed drive mechanism face (39a, 39b) constitute a gearshift together, be used for switch junctions member (40) is determined to it is characterized in that two different positions:

A drive mechanism face (39b) is arranged in the bottom side of keeper (80).

10, make the method for one of claim 1 to 9 switching device, it is characterized in that:

Will with structural detail equipment and insert in this keeper (80) with the printed circuit board (PCB) (86) that printed circuit is made;

Light source (94) is installed in keeper (80) upward and with printed circuit board (PCB) (86) to be connected;

The keeper (80) that printed circuit board (PCB) (86) and light source (94) will be housed is installed on the switch junctions member (40);

The contact convex shoulder (46) that stretches out from switch junctions member (40) of switch contact (42) is connected with this printed circuit board (PCB) (86).