JPS61501733A - potentiometer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] potentiometer Conventional technology level The invention relates to an electric motor, for example a motor vehicle, of the type defined in the preamble of claim 1. Regarding potentiometer used for accelerator.

Such potentiometers are used in so-called electric accelerators for internal combustion engines or converts the fuel-air mixture supplied to an automobile engine into an otherwise normal accelerator. control the regulating motor or surge motor, as in the operation of used to control

In response to the control voltage tapped or taken out by the I tension meter, A regulating motor is controlled that increases or decreases the engine speed.

In many cases, especially in cars with such electric accelerators, adjustment modules are electrical switch that triggers a predetermined function depending on the control voltage applied to the controller. In the internal combustion engine of a car, for example, gasoline// idle link switch, safety switch, full load switch for power supply, ignition, etc.

Kick-down switches, throttle valve switches, and conventional switches as well as various controls A control switch is required.

Until now, such switching functions have been performed by so-called microswitches, and these was turned on and off via a potentiometer. I ten Installation costs required for microswitches that should be installed separately from the geometer cost is considerable, and additional costs include switching timing and potentiometer – to match or properly adjust the control voltage to be tapped or taken out. There is significant deviation (tolerance) in terms of compatibility.

Advantages of the invention In contrast, the device of the present invention having the constituent features described as the features of claim 1 The tensiometer has a very simple structure and is not expensive to manufacture. It has great advantages. The opening and closing points are highly accurate, and the potentiometer - Minimize the manufacturing deviation (tolerance) between the adjustment state and the control voltage taken out .

Potentiometers and switches are rugged, resistant to damage and can withstand rough use. and has a relatively long life.

Advantageous embodiments of the button 7-meter according to the invention are defined in claims 2 to 14. This is made clear by the description.

drawing The invention will be explained in more detail below on the basis of an embodiment shown in the drawing. Ru.

Figure 1 shows the potentiometer plate of a rotary potentiometer with a switch. Plan view, Figure 2 shows a potentiometer for using the potentiometer plate of Figure 1. Plan view of operating part, 1 edge nUG1-501733 (3) Figure 3 is a sectional view taken along the line ■-■ in Figure 2, and Figure 4 is a cross-sectional view of Figures 1 to 3 Rotational characteristic diagram of a rotary potentiometer equipped with the switch shown in the figure, FIG. 5 is a side view of the potentiometer of the second embodiment; Figure 6 shows a schematic plan view of the potentiometer plate of the detensiometer in Figure 5. show.

Description of examples Potentiometers for the electric accelerator shown in each of Figures 1 to 3 The meter is designed as a rotating detensiometer. A circle in the plan view of Figure 1 A disk-like potentiometer plate 10 is shown, on which is designed a resistive slideway. A voltage extraction path 11 is arranged. This semicircular arc-shaped voltage extraction path 11 is a port. Tensiometer - is deposited on one half-disk of plate 10 and is oriented approximately 180°. It is spreading across. The voltage outlet path 11 has connection contacts 12 and 13 at both ends, respectively. They are configured as holes, in which a potentiometer is placed. The connection cable is inserted here from the back side of -10. voltage regulator Parallel to the exit path 11, that is, concentrically, a sliding path 14 in the shape of a y semicircular arc expands. Similarly, connections are made via connection lugs deposited on the potentiometer plate 10. It is connected to the contact point 16.

Potentiometer-operating element 17 shown in plan view in FIG. 2 and in sectional view in FIG. has an arm 18, in which K there are two contact springs electrically connected to each other. Groups 19 and 20 are fixed. With the potentiometer assembled, The contact springs 19 to 2 are arranged so as to slide on the voltage extraction path 11 to the sliding path 14. 0 rests on it. Therefore, 19.20 pairs of two contact springs? Tenji Forms an ohmeter slider or potentiometer tap, which has 9 rotations. Controls the voltage drop that occurs between the connection contacts 12 and 13 in the voltage extraction path 11 according to the position Tapping as voltage. This voltage is then taken at the connection contact 16 of the slideway 14. Served. The slider 19, 20 passes through the travel path of the potentiometer operating part 17. The control voltage tapped by is shown in the lower part of FIG. times in the figure The control voltage remains zero until the rotation angle is 30°, and then increases in proportion to the rotation angle. Finally, the maximum value is reached near the rotation angle of 1500 degrees, and the value remains until the rotation angle of 180 degrees. That's it.

The other semi-disk of one tensiometer 10 is a switch disk, and there are four One electric switch 21°22.23.24 is spatially connected to the voltage outlet path 11. It is arranged with fixed entry points and cut points.

The on and off points of switches 21 to 24 correspond to the rotation angle of the detensiometer. This is shown in the rotation characteristic diagram in Figure 4. The switch elements that cause the disconnection are described above. As such, it is electrically insulated and fixed to the potentiometer operating portion 17.

Each of the switches 21 to 24 is a contact mounted on the potentiometer plate 10. It has continuation paths 25, 26, 27, and 28, and its starting and ending ends are connected to switches 21 to 240. Points and cut points are determined. Further, each of the switches 21 to 24 has a contact fin. 29 and 30, which are mechanically connected to the potentiometer operating part 17. connected and can rotate on the contact connection path. At that time, the contact finger 29.30 is Slidably abuts on the contact connection path. both switches 21, 22, and 23, 24 are successive in time and close alternately without overlapping, so their contact connections Routes 25, 26 to 27, 28 are arranged in a large line at intervals one after the other. , Therefore, the contact connecting paths 25, 26 to 27, 28 are formed on two mutually concentric semicircular arcs. It is located in The contact connection paths 25.26 to 27.28 located one behind the other, Only one contact finger 29-30 (FIG. 2) is required each. be. The contact connection paths 25 to 28 each have connection contacts 31 to 34, which are electrically connected to each other. Just like in the case of pressure takeout path 11, it is configured as a hole into which the connecting cable is inserted from the back. has been completed. Concentrically with the four contact connections 25-28, the potentiometer plate 1 A counter-potential slideway 35 is provided with a connecting contact 36 towards the zero axis. I'm being kicked.

The potentiometer operating part 17 has a second arm, which is diametrically different from the first arm. There is an arm (cantilever 2-) 37 on the opposite side. There are two contact fingers -29.30 and further there is a contact finger 38, which is connected to the opposite potential slide path 3. 5 in elastic abutment at each rotational position of the potentiometer operating part 17. do. The contact finger 38 is connected to each of the contact fingers 29 and 30. and the opposite potential slideway 35 is combined with the contact connection paths 25.26 to 27.28, Contact bridges forming switch elements of the switches 21 to 24 are formed. contact Each of the fingers 29, 30, 31 is connected to a contact spring set 39, 40, 41. It is configured as follows. - the set of contact springs 39-41 is insulated on the arm 37; They are attached to each other and are electrically conductively connected to each other via a cross member 42.

The contact connections 25 to 28 can be manufactured in the same way as the voltage outlet 11 and can also be It can be manufactured using conventional methods in siometer technology. For higher powers, connect The point connecting path is designed as a metal plate inserted into the detensiometer plate 10. is advantageous.

The potentiometer shown schematically as an alternative embodiment in FIGS. It is functionally the same as described above, with some structural changes. component parts and If they are the same, the numbers will be the same, but they will be indicated by the related number with a dash added.

At this N, the potentiometer plate 10' as a disk and the detent as a rotating part are connected again. The siometer operating part 17' is shown (FIG. 6). The operating part 17' is a potentiometer. rotatable around a bin 50 located in the center of the motor plate 10' (Fig. 5). ). In contrast to the embodiments of FIGS. 1 to 3, here the contact connections 51' and 52 are ' and the voltage outlet path 11' are provided on the same half of the potentiometer plate 10'. electrically assigned to the opposite contact connection path 35' and the voltage outlet path 11'. A slideway 14' is provided on the other semicircle.

The contact connections 51' are again arranged in a row in the front layer.

52' is on a semi-circular arc as two time-successively operating switches. child This arc extends concentrically to the voltage outlet path 11'. Contact connection paths 51', 52' and the voltage outlet path 11' are arranged spatially as close to each other as possible. It is.

This arrangement of contact connection paths 51', 52' and voltage extraction path 11' has the following advantages. . In other words, in relation to the voltage divider ratio, that is, the total voltage, the potentiometer The voltage divided by In order to precisely match or match the closing point, the potentiometers are highly precise. Relatively large production items that are either not manufactured in advance or must be adjusted later. The potentiometer plate 10' is present in the deviation - Slight eccentricity of the operating part 17' may be due to eccentricity of the center of rotation or contact of the rotating parts. This is caused by variations in pressure, and in this case, the current opening/closing point, that is, the switch The variation of the voltage divider ratio at the time of response is made smaller or even smaller and allowed. bring within range. This makes it possible already in mass production to accurately Corresponding to the predetermined angular position of the potentiometer operating part 17', a reliable Accurate voltage divider ratios are obtained.

The potentiometer actuating part 17', which is designed as a rotating part, has two electrical It has rotating parts 53' and 54' arranged insulated, and they do not rotate with respect to each other. They are connected in a similar way. These two rotating parts 53' and 54' are electrically insulated. The pin 50' is fixed opposite to the sliding protective ring 55', and at the same time be transferred. The rotating parts 53' are two mutually electrically connected parts arranged on opposite sides. It has a pair of sliding springs 56', 57', which have equivalent conductor sliding paths or It rests elastically on the pressure takeout path 11' and the sliding path 14'. One rotating part 54' also It also has a pair of similarly constructed sliding springs 58', 59', which are connected to the contact point. It slides on the connecting path 51' 52' or the opposite potential sliding path 35'.

Also, in this implementation of the potentiometer, the opening and closing times overlap. A switch may be provided in advance. For this purpose, one or more contact connections are required. It must also be arranged concentrically with the voltage outlet 11' in a semicircular arc. must be Both sides of the voltage outlet path 11' should be On the side there are suitable parallel contact connections, which should be placed as close as possible to the voltage take-off. must be placed adjacent to each other. Furthermore, the rotating part 54' has a sliding spring, It rests on parallel and concentric contact connections.

The invention is not limited to the rotary potentiometer embodiment described above.

The potentiometer can be configured as a disk potentiometer in the same way, In this case, the voltage outlet path and the contact connection path are located parallel to each other. The contact connection path is Potentiometers with switches that close in succession and without overlapping in time. along the direction of movement of the motor-operating parts are located in line with each other in the same way.

The voltage tap-off path and the contact connection path are also arranged on different sides of the potentiometer plate. .

Furthermore, the switch elements of the switches 21-24 and therefore the contact springs 39,40 The contact fingers 29 and 30 thus constructed are the potentiometer operating section. It is not necessary that the parts 17 be electrically isolated and mounted. Rather, the opening/closing signal is emitted. The potentiometer voltage itself can also be used for raw voltage. contact at the same time The fingers 29.30 are electrically conductive with the contact springs 19.20 forming the entire slider. connected. In this case, the opposite contact connection path 35 of the potentiometer plate and the arm 3 The contact finger 38 attached to 7 is no longer required.

Fig, 7 D woman I E-Kin J International investigation report

Claims (1)

[Claims] 1. For example, in a potentiometer used in a car's electric accelerator, there is a small A potentiometer with a voltage outlet designed as a single resistance path. It has a plate and a slider that slides on the voltage extraction path, and taps the control voltage. Potentiometers with mechanically movable potentiometer operating parts In the motor, input points and cut points whose positions are spatially fixed with respect to the voltage outlet path (11) are set. Electric switches (21-24) with are arranged on the potentiometer plate (10). Also, the switch elements (29, 30) that cause the on/off state are potentiometers. A potentiometer characterized in that it is fixed to a motor operation part (17). Two switches (21 to 24) are respectively adhered to the potentiometer plate (10). Only the contact connections (25-28) and the potentiometer operation part (17) and fixed contact fingers (29, 30). , the start and end ends of the contact connection paths (25-28) are connected to the switches (21-24). The entry point and the cut point are determined, and the contact fingers (29, 30) are connected to the contact connection path ( 25-28) The above-mentioned device is configured to rotate on the top and come into sliding contact at the same time. A potentiometer according to Range 1. Switches that are closed in 3-hour succession without overlapping (21, 22 to 23, 24) The contact connection paths (25, 26 to 27, 28) are arranged substantially in alignment one behind the other. A single controller for all switches (21, 22 to 23, 24) The point according to claim 2, which is provided with tact fingers (29 to 30). Tensiometer. Switches that close simultaneously and/or overlappingly for 4 hours (21, 23 to 22, 24), the contact connection paths (25, 27 to 26, 28) are arranged in parallel to each other, One separate contact finger for each switch (21, 23 to 22, 24) (29, 30) is assigned as claimed in claim 2 or 3. nsiometer. Each of the 5-contact connection paths (25-28) has connection contacts (31-34), and the ports The tensiometer plate (10) has contact connection paths (25, 26 to 27, 28) with a connecting contact (36) extending over the entire length of the opposite potential slide path ( 35) are arranged, and each of the contact fingers (29, 30) Another contact finger (38) which slides on the counter-potential slideway (35) and In both cases, the contact connection paths (25, 26 to 27, 28) are each connected to the opposite potential sliding path (3). 5), which constitutes a contact bridge connected to the potentiometer. The six contact connection paths (25-28, 50', 51') connect to the potentiometer plate (10, Claims 2 to 5 constituted as a metal plate fitted in Potentiometer described in section. 7 potentiometer plates (10, 10') act as a disk for potentiometer operation. The operating part (17, 17') is aligned with the central axis of the potentiometer plate (10, 10'). Claims 2 to 6 are configured as a rotating part that rotates at the same time. potentiometer. 8 Voltage output path (11) is connected to the contact connection path (25) on the semicircular disk of the potentiometer plate. ~28) extend over a rotation angle of approximately 180° on each of the other semicircular embodies. The potentiometer according to claim 7. Nine parallel contact connection paths (25, 26 to 27, 28) are arranged concentrically, and the contact bridge consisting of sliding springs (39-41) whose edges are electrically interconnected; and the spring extends laterally across the slideway (25 to 28, 35). It is fixed to the arm (37) of the potentiometer operating part (17) and has a concentric sliding path ( 25 to 28, 35) at that time, according to claim 8. potentiometer. 10 Concentrically to the voltage outlet path (11) arranged in a semicircular shape, and further concentrically to it. A semicircular sliding path is placed in the center and extends over its entire length, and the voltage The outlet path (11) has connecting contacts (12, 13) at both ends thereof, and the sliding path (14) has a further connection contact (16), and the slider (19, 20) is a voltage outlet (11) and the slideway (14) in elastic contact engagement; is the potentiometer described in item 9. 11 contact connection paths (51', 52') and voltage output path (11') are potentiometers. - On the same semicircle of the board (10'), the opposite contact connection path (35') and the voltage extraction path (1 A sliding path (14') electrically connected to the semicircular The contact connection paths (51', 52') arranged in an arc shape and located one behind the other are connected to the voltage extraction path (51', 52'). 11′) and extending concentrically with respect thereto, in particular at a slight spacing. The potentiometer according to claim 7. 12 parallel contact connection paths are arranged as concentric semicircular arcs on both sides of the voltage outlet path (11'). 12. A potentiometer as claimed in claim 11, wherein the potentiometer is arranged as follows. 13 rotating parts with two electrically insulated and non-rotatingly interconnected rotating parts Has a handle (53', 54'), two electrically connected and diametrically opposite positions One rotary handle (53') is equipped with a pair of sliding springs (56', 57'). ) elastically abuts on the voltage outlet path (11') and the sliding path (14'), and prevents the rotation of the other one. The handle (54') has a set of like electrically interconnected slides as a contact bridge. It has dynamic springs (58', 59'), and the springs have opposite potential sliding paths (35'). ') and at least one contact connection (51') concentric to the voltage outlet (11'). ', 52') The potentiometer according to item 11 or 12. 14 connection contacts (12, 13, 16, 31-34) are connected to the potentiometer plate (10 ) The above-mentioned claimant is configured as an insertion hole that can be easily accessed and installed from the rear side. The potentiometer according to the desired range of items 5 to 13.