WO2019025952A1

WO2019025952A1 - Integrated electromechanical device

Info

Publication number: WO2019025952A1
Application number: PCT/IB2018/055702
Authority: WO
Inventors: Riccardo Alberto MATTIOLI
Original assignee: Hike S.R.L.
Priority date: 2017-08-01
Filing date: 2018-07-31
Publication date: 2019-02-07
Also published as: EP3662496B1; CN111448636A; CN111448636B; IT201700088417A1; EP3662496A1

Abstract

An integrated electromechanical device (1) is described comprising: - a support body (100), a first fixed contact (158), a first and a second variable position contact (M1, M2), a first and a second control circuit (138, 138'); the first and the second variable position contact (M1, M2), in a conduction condition, are connected to each other by means of the first fixed contact (158) and, in an isolation condition, are not electrically connected to each other; the transition between the two conditions is controlled by the first and/or by the second control circuit (138, 138'); - at least one first and one second conductive terminal (110, 112) each comprising an end region (100A, 112A) one arranged on a first plane (x1) and the other on a second plane (x2) different and parallel to the first plane (x1); at least one among the first and second conductive terminals (110, 112) is a terminal connected to the first or second variable position contact (M1, M2), or is a terminal of the first or second control circuit (138, 138').

Description

Integrated electromechanical device

Technical sector The present invention relates to an electromechanical device, particularly for highly integrated electrical appliances. In particular, the invention concerns an integrated electromechanical device with back-to-back dual-mounting.

Prior Art

Recent developments in electronics have made it possible to reduce the overall size of consumer and industrial electronic products. In particular, the reduction in the size of products is a natural consequence of a continuous and improving design of the internal components, which very often have been redesigned on the basis of new technologies.

The current electromechanical devices are produced with the concept of being assembled on a circuit board; this, unlike the present invention, involves making larger circuit boards and, in the case of multiple, overlapping circuit boards, requires the use of connectors that make electrical connections between at least two circuit boards with an additional increase in space and cost.

Summary of the invention

One purpose of the present invention is to propose an integrated electromechanical device that may be used in all products that have multiple circuit boards, or a single circuit board shaped in such a way as to create an overlapping of two areas, within which the electromechanical device may be interposed.

Such structure allows further integration of the products, for example, by reducing the areas of the circuit boards that make up such products, for example by eliminating the internal connection connectors between the various electronic boards and consequently also the installation areas thereof. The aforementioned and other purposes and advantages are achieved, according to an aspect of the invention, via an integrated electromechanical device having the features defined in claim 1. Preferred implementations of the invention are defined in the dependent claims, which are intended as an integral part of the present description.

In summary, the present invention concerns an integrated electromechanical device comprising a support body including a plurality of sides, a first fixed contact, a first variable position contact, a second variable position contact, a first control circuit provided to control the first variable position contact and a second control circuit provided to control the second variable position contact.

The first variable position contact and the second variable position contact, in a predetermined conduction condition, are electrically connected to each other via said first fixed contact and, in a predetermined isolation condition, are not electrically connected to each other.

The transition from the conduction condition to the isolation condition, and vice versa, being controlled by said first control circuit and/or said second control circuit. The integrated electromechanical device further comprises at least one first conductive terminal and at least one second conductive terminal disposed on, or exiting from, at least one side of the support body.

The at least one first conductive terminal and the at least one second conductive terminal each comprise a respective connecting end region, distal with respect to the support body, which are disposed respectively one on a first connection plane and the other on a second connection plane, different and parallel to said first connection plane.

At least one among said first conductive terminal and said at least one second conductive terminal is a terminal connected to the first variable position contact or to the second variable position contact. Or, at least one among said at least one first conductive terminal and said at least one second conductive terminal is a terminal of the first control circuit or of the second control circuit.

In this way, the first conductive terminal and the second conductive terminal may be respectively arranged to be connected directly one to a first circuit board and the other to a second circuit board or to a connector or a cable. Or rather, the first conductive terminal and the second conductive terminal may be arranged respectively to be connected one to a first area and the other to a second area of a flexible circuit board. Appropriately, since the aforementioned electromechanical device includes at least one variable position contact and a respective control circuit of the variable position contact, it is possible to create electronic products also composed of several circuit boards, even without the aid of dedicated internal connectors, to connect, for example, generic electronic signals or power supplies.

Brief description of the drawings

Further features and advantages of the invention will become apparent from the detailed description that follows, provided purely by way of non-limiting example with reference to the accompanying drawings, wherein:

figure 1 shows a side view of a first variable position contact Ml and a control circuit 138, which allow for back-to-back mounting of two circuit boards;

figure 2 shows an internal view of an embodiment of the integrated electromechanical device;

- figure 3 shows a detailed view of the variable position contacts and fixed contacts of the integrated electromechanical device shown in figure 2; and

figure 4 is a perspective view by way of example of an electromechanical device integrated according to the invention. Detailed Description

Before describing in detail a plurality of embodiments of the invention, it should be clarified that the invention is not limited in its application to the details of construction or to the configuration of the components provided in the following description or illustrated in the drawings. The invention may assume other embodiments and may be implemented or achieved in essentially different ways. It should also be understood that the phraseology and terminology have descriptive purposes and should not be construed as limiting. The use of "include" and "comprise" and the variations thereof are to be understood as encompassing the elements stated hereinafter and the equivalents thereof, as well as additional elements and the equivalents thereof. In a first example embodiment, the integrated electromechanical device 1 comprises a support body 100 which includes a plurality of sides 301, 306, a first fixed contact 158, a first variable position contact Ml, a second variable position contact M2, a first control circuit 138 arranged to control the first variable position contact Ml and a second control circuit 138' arranged to control the second variable position contact M2.

The first variable position contact Ml and the second variable position contact M2, in a predetermined conduction condition, are electrically connected to each other via said first fixed contact 158 and, in a predetermined isolation condition, are not electrically connected to each other.

The transition from the conduction condition to the isolation condition, and vice versa, is controlled by said first control circuit 138 and/or said second control circuit 138'.

The integrated electromechanical device 1 further comprises at least one first conductive terminal 1 10 and at least one second conductive terminal 1 12 disposed on, or exiting from, at least one side 301, 306 of the support body 100.

For example, as shown in said figure 1, the at least one conductive first terminal 110 and the at least one conductive second terminal 1 12 may exit from two opposite sides of the support body. The at least one first conductive terminal 110 and the at least one second conductive terminal 1 12 each comprise a respective connecting end region 100A, 1 12A, distal with respect to the support body 100, which are disposed respectively one on a first connection plane xl and the other on a second connection plane x2, different and parallel to said first connection plane xl .

At least one among said first conductive terminal 110 and said at least one second conductive terminal 1 12 is a terminal connected to the first variable position contact Ml or to the second variable position contact M2, or at least one among said at least one first conductive terminal 1 10 and said at least one second conductive terminal 1 12 is a terminal of the first control circuit 138 or of the second control circuit 138'. For example, as shown in the embodiment in figure 1 , there are two first conductive terminals 110 and each of them may be a conductive terminal of a control circuit 138, or a variable position contact terminal Ml . The at least one first conductive terminal 1 10 and the at least one second conductive terminal 1 12 may be arranged respectively to be connected directly one to a first circuit board 201 and the other to a second circuit board 202 or to a respective connector or cable, or the first conductive terminal 110 and the second conductive terminal 112 may be respectively arranged to be connected one to a first area al of a flexible circuit board 203 and the other to a second area a2 of the same flexible circuit board 203.

For example, said connector or cable may be soldered or plugged directly into the conductive terminal 112. In figure 1, the at least one conductive terminal 110 and the at least one second conductive terminal 112 are connected, one to a first circuit board 201 and the other to a second circuit board 202.

Flexible circuit boards become very useful in the case of circuit boards with complex geometries that normal circuit boards could not satisfy. Flexible circuit boards may, for example, be made of graphene. It is therefore evident that this device creates a structure with one or more circuit boards having a distance d between them.

For example, the first conductive terminal 1 10 and the second conductive terminal 1 12 may be connected to circuit boards by soldering.

Moreover, as may be seen in figure 1 , the terminals that exit from the sides of the main body 100 may, by way of example, be pins 1 12 of a substantially linear shape, of which one end thereof fits directly into the main body 100 and the other end, intended for soldering, may be linear or bent substantially by about 90 degrees with respect to the direction of exit from the main body 100 or may be soldered directly to respective connectors or cables of appropriate size.

Again by way of non-limiting example, in the embodiment illustrated in figure 1, the first conductive terminals 1 10 that have an end intended for soldering that is substantially bent by about 90 degrees, may be connected to. the first circuit board 201 via conductive areas 210 comprised in the circuit board 201, and the second conductive terminals 112, which have an end intended for soldering that is linear, are connected to a second circuit board 202 via conductive areas 212 in the center of which a hole is provided for the insertion of the second conductive terminal 112, the conductive areas 212 being comprised in the circuit board 202.

In one embodiment given by way of example, the first connection plane xl may be disposed at a distance dl from the main body 100, according to a first direction vl, and the second connection plane x2 is disposed at a distance d2 from the main body 100, according to a second direction v2 opposite to said direction vl .

Obviously, as may also be seen from the figures, the integrated electromechanical device may comprise a plurality of first conductive terminals 110 and/or a plurality of second conductive terminals 1 12. In a further embodiment, illustrated in figure 3, the electromechanical device may comprise a second fixed contact 158', a third variable position contact M3 and a fourth variable position contact M4, a third control circuit 138" provided to control said third variable position contact M3 and a fourth control circuit 138"' provided to control said fourth variable position contact M4.

The second fixed contact 158' may be arranged so that the third variable position contact M3 and the fourth variable position contact M4, in a predetermined conduction condition, are electrically connected to each other via said second fixed contact 158' and that, in a predetermined isolation condition, they are not electrically connected to each other. The transition from the conduction condition to the isolation condition, and vice versa, is controlled by the third control circuit 138" and/or the fourth control circuit 138"'.

Moreover, in yet another embodiment, the integrated electromechanical device may comprise a third fixed contact 158" and a fourth fixed contact 158"'.

The third fixed contact 158" may be arranged so that the first variable position contact Ml and the third variable position contact M3, in a predetermined conduction condition, are electrically connected to each other via said third fixed contact 158" and, in a predetermined isolation condition, are not electrically connected to each other, the transition from the conduction condition to the isolation condition, and vice versa, being controlled by the first control circuit 138 and/or the third control circuit 138".

Moreover, the fourth fixed contact 158"' may be arranged so that the second variable position contact M2 and the fourth variable position contact M4, in a predetermined conduction condition, are electrically connected to each other via said fourth fixed contact 158"' and, in a predetermined isolation condition, are not electrically connected to each other, the transition from the conduction condition to the isolation condition, and vice versa, being controlled by the second control circuit 138' and/or the fourth control circuit 138"'.

Furthermore, the third fixed contact 158" and the fourth fixed contact 158"' may allow the second variable position contact M2 and the third variable position contact M3, in a predetermined conduction condition, to be electrically connected to each other via said third fixed contact 158" and, in a predetermined isolation condition, not to be electrically connected to each other, the transition from the conduction condition to the isolation condition, and vice versa, being controlled by the second control circuit 138' and/or the third control circuit 138".

The third fixed contact 158" and the fourth fixed contact 158"' may also allow for the first variable position contact Ml and the fourth variable position contact M4, in a predetermined conduction condition, to be electrically connected to each other via said fourth fixed contact 158'" and that, in a predetermined isolation condition, they are not electrically connected to each other, the transition from the conduction condition to the isolation condition, and vice versa, being controlled by the first control circuit 138 and/or the fourth control circuit 138"'.

As illustrated in detail in figure 3, the second fixed contact 158' and the third fixed contact 158" may essentially form an x-shape. In an alternative embodiment, not shown, the second fixed contact 158' and the third fixed contact 158" may be substantially parallel.

In a further embodiment not shown, the electromechanical device may comprise the first variable position contact Ml, the second variable position contact M2, the third variable position contact M3, the first fixed contact 158 and the third fixed contact 158", so that it may perform the function of a switch.

The support body 100 may also include at least one protrusion 350 intended to be used as a centering element to align said at least one circuit board 201, 202 with said electromechanical device 1 , or to fix a minimum distance d between said support body 100 and at least one circuit board 201, 202, 203.

For example, each control circuit may control a single moving contact, independently of the other.

A control circuit may, by way of example, include, among other mechanical components, at least one coil. Still by way of example, the transition from the conduction condition to the isolation condition may be made by attracting or repelling the respective moving contact by means of a coil that may be supplied with a reference potential. As shown in detail in figure 4, the support body 100 may have such a shape whereby the terminals 112 may be arranged on, or exit from, a surface 302 or another surface 302' which is parallel to the surface 302 at a distance A.

In addition, the support body 100 may have a shape such that the terminals 110 may be disposed on, or exit from, a surface 301 or another surface 30 Γ parallel to the surface 30 Γ at a distance B.

As shown in detail in figure 4, the support body 100 may also have C-bevels on one or more corners of the support body.

As shown in detail in figure 2, the fixed contacts 158, 158"' may include a plurality of reinforcing contacts Fl , F4 and CI , C4 and the variable position contacts Ml, M4 may also include a plurality of reinforcing contacts Tl, T4 so that the contact area between a variable position contact and the respective fixed contact is such as to ensure a predetermined value of electrical current through such contacts.

In addition, as shown by way of example in figure 2, all fixed contacts 158, 158"' and all the movable contacts Ml, M4 may be arranged in a region of the integrated electromechanical device 1 , which is between two parallel planes x3, x4.

Various aspects and embodiments of an integrated electromechanical device according to the invention have been described. It is understood that each embodiment may be combined with any other embodiment. Naturally, without altering the principle of the invention, the embodiments and the details of construction may vary widely with respect to those described and illustrated purely by way of non-limiting example, without thereby departing from the scope of the invention as defined in the appended claims.

Claims

1. An integrated electromechanical device (1) comprising:

- a support body (100) comprising a plurality of sides (301, 306), a first fixed contact (158), a first variable position contact (Ml), a second variable position contact (M2), a first control circuit (138) arranged to control the first variable position contact (Ml) and a second control circuit (138') arranged to control the second variable position contact (M2); the first variable position contact (Ml) and the second variable position contact (M2), in a predetermined conduction condition, are electrically connected to each other via said first fixed contact (158) and, in a predetermined isolation condition, are not electrically connected to each other; the transition from the conduction condition to the isolation condition, and vice versa, being controlled by said first control circuit (138) and/or said second control circuit (138');

- at least one first conductive terminal (110) and at least one second conductive terminal (1 12) disposed on, or exiting from, at least one side (301, 306) of the support body (100); the at least one first conductive terminal (1 10) and the at least one second conductive terminal (1 12) each comprising a respective connecting end region ( 100A, 1 12 A) distal from the support body (100), which are respectively located one on a first connection plane (xl) and the other on a second connection plane (x2), different from and parallel to said first connection plane (xl);

at least one among said first conductive terminal (1 10) and said at least one second conductive terminal (112) being a terminal connected to the first variable position contact (Ml) or to the second variable position contact (M2), or

at least one among said at least one first conductive terminal (110) and said at least one second conductive terminal (112) being a terminal of the first control circuit (138) or of the second control circuit (138').

2. An integrated electromechanical device (1) according to claim 1, wherein

the at least one first conductive terminal (110) and the at least one second conductive terminal (112) are respectively arranged to be directly connected one to a first circuit board (201) and the other to a second circuit board (202) or to a respective connector or cable; or, the at least one first conductive terminal (110) and the at least one second conductive terminal (1 12) are respectively arranged to be connected one to a first area (al) of a flexible circuit board (203) and the other to a second area (a2) of the same flexible circuit board (203).

3. An integrated electromechanical device (1) according to claim 1 or 2, wherein the first connection plane (xl) is disposed at a distance (dl) from the support body (100) according to a first direction (vl), and the second connection plane (x2) is disposed at a distance (d2) from the support body (100), according to a second direction (v2) opposite to said direction (vl).

4. An integrated electromechanical device (1) according to any one of the preceding claims, wherein the at least one first conductive terminal (1 10) and the at least one second conductive terminal (1 12) are respectively disposed on, or exiting from, two sides (302, 301) of the support body opposite to each other.

5. An integrated electromechanical device (1) according to any one of the preceding claims, including a plurality of first conductive terminals (110) and/or second conductive terminals (1 12).

6. An integrated electromechanical device (1) according to any one of the preceding claims, comprising a second fixed contact (158'), a third variable position contact (M3) and a fourth variable position contact (M4), a third control circuit (138") arranged to control said third variable position contact (M3) and a fourth control circuit (138"') arranged to control said fourth variable position contact (M4);

the second fixed contact (158') being arranged so that the third variable position contact (M3) and the fourth variable position contact (M4), in a predetermined conduction condition, are electrically connected to each other via said second fixed contact (158') and that, in a predetermined isolation condition, they are not electrically connected to each other; the transition from the conduction condition to the isolation condition, and vice versa, being controlled by said third control circuit (138") and/or fourth control circuit (138"').

7. An integrated electromechanical device (1) according to claim 6, comprising:

- a third fixed contact (158") and a fourth fixed contact (158"');

the third fixed contact (158") being arranged such that the first variable position contact (Ml) and the third variable position contact (M3), in a predetermined conduction condition, are electrically connected to each other via said third contact fixed (158") and that, in a predetermined isolation condition, they are not electrically connected to each other; the transition from the conduction condition to the isolation condition, and vice versa, being controlled by the first control circuit (138) and/or by the third control circuit (138"); and

the fourth fixed contact (158"') being disposed so that the second variable position contact (M2) and the fourth variable position contact (M4) in a predetermined conduction condition, are electrically connected to each other by said fourth fixed contact (158"') and that, in a predetermined isolation condition, they are not electrically connected to each other; the transition from the conduction condition to the isolation condition, and vice versa, being controlled by the second control circuit (138') and/or by the fourth control circuit (138"').

8. An integrated electromechanical device (1) according to claim 7, wherein the third fixed contact (158") and the fourth fixed contact (158"') also allow that:

- the second variable position contact (M2) and the third variable position contact (M3), in a predetermined conduction condition, are electrically connected to each other via said third fixed contact (158") and that, in a predetermined isolation condition, they are not electrically connected to each other; the transition from the conduction condition to the isolation condition, and vice versa, being controlled by the second control circuit (138') and/or the third control circuit (138");

- the first variable position contact (Ml) and the fourth variable position contact (M4), in a predetermined conduction condition, are electrically connected to each other by means of said fourth fixed contact (158"') and that, in a predetermined isolation condition, they are not electrically connected to each other; the transition from the conduction condition to the isolation condition, and vice versa, being controlled by the first control circuit (138) and/or by the fourth control circuit (138"').

9. An integrated electromechanical device (1) according to claim 8, wherein the third fixed contact (158") and the fourth fixed contact (158"') substantially form an x-shape or are essentially parallel.

10. An integrated electromechanical device (1) according to any one of the preceding claims, wherein the support body (100) includes at least one protrusion (350) intended to be used as a centering element to align said at least one circuit board (201, 202) with said electromechanical device (1) or is intended to secure a minimum distance (d) between said support body (100) and at least one circuit board (201, 202).

1 1. An integrated electromechanical device (1) according to any one of the preceding claims, wherein each control circuit (138, 138"') includes a coil.