ES2733465T3 - Communications device chest - Google Patents

Abstract

Box for communications device consisting of a chassis (1), which contains - at least one connector plug (2), - an electronic circuit (3) with electronic components (31) made on a printed circuit board (32), and - a connection system (4) consisting of a first connection element (41) and a second connection element (42), - where the first connection element41) is constituted by a conductive sheet (411), - where the second connection element (42) consists of a conductive film (421) deposited on the printed circuit board (32) and - where the first connection element (41) establishes galvanic contact by pressure with the second connection element (42) , - where the conductive sheet (411) constituting the first connecting element (41) has a body having an end face (4111) and a contact surface (4112), and - where the conductive sheet (411) with its contact surface ( 4112) located on the conductive film (421) deposited on the printed circuit board (32) constituting the second connection element (42), - where the first connection element (41) has a third connection element (43 ) for the inner conductor (61) of a coaxial cable (6), the internal conductor (61) being galvanically connected to the third connecting element (43) by introducing the internal conductor (61) of the coaxial cable (6) into the third connection element (43), - where by introducing the internal conductor (61) of the coaxial cable (6) a galvanic connection is established between a mesh (62) of the coaxial cable (6) and the chassis (1), and - where the hood has hinges (7) that hold the mesh (62) of the coaxial cables (6) in the at least one connector plug (2)

Description

DESCRIPTION

Chest for communications device.

The present invention relates to a chest for electronic devices according to claim 1.

There are currently a wide variety of chests for electronic devices with systems and connection devices for printed circuit boards. All these systems and devices use welding as a basic element of the system. This presents the problem of complicating the industrial process while introducing problems due to inconsistency of welding (joint breakage, cold welding, etc.) as well as the use of non-ecological components.

In Spanish patent applications P200901160 and P200901964, both properties of the applicant, connection systems for printed circuit board are described.

The first Application P 200901160 describes a connection system for printed circuit board consisting of two connection elements

- A first connection element consisting of a first conductive film, printed on one side of the printed circuit board, and a second conductive film, printed on the other side of the printed circuit board, and

- A second connecting element consisting of a first sheet and a second sheet that by pressure establish galvanic contact respectively with the first conductive film and / or with the second conductive film.

The solution described in this application has the disadvantage of having to use two sheets to establish the galvanic contact.

The second Spanish application P200901964 shows a user socket for telecommunication networks, in particular for MATV / SMATV networks with a connection system for printed circuit consisting of a first connection element and a second connection element connected to each other by a connection galvanic where the galvanic connection is composed of at least one conductive sheet that exerts a pressure on the first connection element.

The solution described in this application has the disadvantage that the sheet that constitutes the galvanic connection and that exerts pressure on the first connection element is perpendicular thereto, thus reducing the contact surface and thereby increasing the possibility of failure in the connection.

EP 0361 821 A2 describes an electrical connection system in which a plurality of longitudinally formed contacts (40) come into contact in their final regions with contact elements (40a) disposed therein two circuit boards (10, 20) separated from each other. Both circuit boards (10, 20) have electronic components 62 on the same side of the board in which contact is made with contact elements 40a.

EP 2 037 536 A2 describes a terminal with an insulating terminal housing and a clamping contact arranged in the terminal housing for connecting an electrical conductor. A contact spring, which is located in the terminal housing with the terminal contact in an electrically conductive connection, is guided through a first opening of the terminal housing on the outside of the terminal housing. In this case, the contact spring is designed in such a way that it presses when placing the terminal on a circuit board against a contact surface of the circuit board to make electrical contact between the circuit board and the terminal contact.

US 4 993 956 A describes an "active electrical connector". Said connector has a reception space in which a replaceable circuit board can be inserted, where the circuit board can be electrically connected with contact elements.

Document ES 1049 159 U describes a housing for a telecommunications device, consisting of a chassis, with an electronic circuit with electronic components, which is arranged on a circuit board with a printed circuit structure. To connect an ashtray of a coaxial cable to the chassis, the housing has hinges that insert and secure the coaxial cable mesh cable into the chassis.

The object of the present invention is the realization of a hood for a telecommunications device that has a connection system for a printed circuit board without welding that allows a simpler and safer connection.

This objective is achieved by a box for a telecommunications device as described in the claims.

The invention has a plurality of advantages.

The hood according to the invention the hood for electronic equipment is constituted by a chassis, with at least one connector plug, an electronic circuit with electronic components made on a printed circuit board and a connection system; where the connection system is constituted by a first connection element and a second connection element, the first connection element being constituted by a conductive sheet and the second connection element by a conductive film deposited on the printed circuit board and where The first connection element establishes galvanic contact by pressure with the second connection element. In this case, the first connection element has a third connection element for an internal conductor of a coaxial cable, where by means of the introduction of the internal conductor of the coaxial cable (metal mesh) a galvanic connection of a mesh with the mesh is also made. chassis, and where the connection of the metal mesh of the coaxial cable with the chassis, the hood having hinges that allow the metal mesh of the coaxial cable to be secured in the chassis connector.

Another example according to the invention is characterized in that the conductive sheet (spring) is elastic or consists of an elastic material, for example copper or copper alloy. This has the advantage of achieving a higher pressure of the conductive sheet of the first connection element on the conductive film of the second connection element, thus ensuring a better galvanic connection.

Another example of a hood according to the invention is characterized in that the circuit board has a first face on which the printed circuit structure is arranged, and a second face on which the conductive film is arranged, which forms the second connection element. In this way, the advantage is achieved that a larger area for the conductive film of the second connection element can be provided and, therefore, the contact area between the first connection element and the second connection element can be increased. Connection.

In another example of a hood for a communication device according to the invention, the first connection element is integrated in an insulating material bushing. This has the advantage of keeping the first connection element isolated from other electrically active elements of the hood, thus avoiding possible short circuits. . In addition, the insulating material bushing keeps the first connection element clean, thus ensuring greater connection reliability.

For a better understanding of the invention, a box for communications device with a connection system for printed circuit board according to the invention is described by way of non-limiting example based on the drawings listed below:

Figure 1 Chest for communications equipment according to the invention

Figure 2 Connection elements of a connection system for printed circuit board of a box for communications equipment according to Figure 1.

Figure 3 First connection components of the hood according to Figure 1

Figure 4 Second connection components of the hood according to Figure 2

Figure 5 Galvanic contact between a sheet and a conductive film formed in the housing according to the invention;

Figure 6 Contact between a sheet and a conductive film according to the prior art

As can be seen in Figure 1, the embodiment of the housing according to the invention is constituted by a chassis 1 that costs an upper cover 11 and a lower cover 12 with at least one connecting pin 2 generally located, but not limited thereto. , on the top cover 11

In addition, the arrangement shown in Figure 1 has an electronic circuit 3 with electronic components 31 that are arranged on a printed circuit board 32.

Finally, a connection system 4 is shown in Figure 1, which consists of a first connection element 41 and a second connection element 42. The first connection element 41 consists of a conductive sheet (spring) 411 and a third connection element 43. The second connection element 42 consists of a conductive film 421 deposited on the circuit board 32

The circuit board 32 has a first face on which a printed circuit is arranged, and a second side on which the conductive film 421 forming the second connection element 42 is arranged. Both the electronic components and the printed conductors can be arranged interchangeably on both the first side and the second side of the circuit board.

As shown below in Figure 1, the first connection element 41 is located within an insulating bushing (block) 5, consisting essentially of two parts, a front part 51 and a rear part 52. Both parts 51, 52 they are connected to each other and form in the connected state, an element 53, in particular a small channel 53, through which the conductive sheet 411 of the first connection element 41 extends. The front part 51 of the insulating block 5 has a hole intern 511 on its front side.

Figure 2 shows the connection elements of a connection system for printed circuit board of an electronic equipment box according to the invention. As can be seen in said figure, the conductive sheet 411 of the first connection element 41 establishes galvanic contact by pressure with the conductive film 421 deposited on the printed circuit board 32 constituting the second connection element 42.

This pressure is obtained as a result of the pressure exerted by the upper cover 11 of the chassis 1 of the hood of the invention on the insulating block 5 (see figure 1) where the first connecting element 41 is located and the pressure exerted by the lower cover 12 of chassis 1 on the printed circuit board 32 where the connection element 42 is located.

As can be seen in said figure the conductive sheet 411 constituting the first connection element 41 is oblique with respect to the conductive film 421 deposited on the printed circuit board 32 constituting the second connection element 42.

A preferred embodiment of the arrangement of the conductive sheet 411 - after its positioning - on the conductive film 421 is shown in Figure 5.

The conductive sheet 411 has a body, for example, in the form of a cylinder or a cuboid shape, with an end face 4111 and a contact surface 4112. Upon positioning, the contact surface 4112 is located on the conductive film 421 and establishes with this a galvanic contact.

In Figure 6, which shows the state of the art according to the Spanish patent application P200901964 mentioned above, a sheet 4 with a film 31 forms a galvanic contact with a relatively small contact surface.

The conductive sheet (spring) 411 is contained or consists of a conductive elastic material, in particular copper or a copper alloy.

As further illustrated in Figure 2, the first connection element 41 has a third connection element 43, into which the inner conductor 61 of a coaxial cable 6 is introduced through a through hole 511 of the insulating block 5.

The third connection element 43 has a mechanism that, as a result of the activation, which takes place through the insertion of the internal conductor 61 of the coaxial cable 6, connects this internal conductor 61 to the third connection element 43 and fixes the internal conductor 61 to connection element 43.

Figure 3 shows another view of the chest for electronic equipment according to the invention. As can be seen in the figure, the upper cover 11 of the chest chassis 1 of the invention has cavities 111 where the insulating bushes 5 containing the first connecting element 41 are located.

Said cavities 111 are designed so that the through hole 511 of the insulating bushing 5 exactly coincides with the through hole 21 of the connecting pin 2 so that the internal conductor 61 of the coaxial cable 6 penetrates through both of them to the third connecting element 43

Figure 4 shows an internal conductor 61 of the coaxial cable 6 inserted in the housing or through the holes 21 and 511 (Figure 2). In this case, a galvanic connection is produced between the internal conductor 61 of the coaxial cable 6 and the third connection element 43 of the first connection element 41 (Figure 2).

By means of a mechanism activated by the introduction of the internal conductor 61 of the coaxial cable 6, which has a mesh (external conductor) 62, a galvanic connection is established between the mesh 62 of the coaxial cable 6 and the chassis 1 of the hood according to the invention .

To secure this contact or this connection, the hood has hinges (gaskets) 7, which introduce and secure the outer conductor 6 of the respective coaxial cable 6 into the corresponding connector 2 of the upper cover 11 of the chassis 1 of the hood according to the invention.

Reference List

1 chassis

11 Top cover

111 Cavities

12 Bottom Cover

2 Connector plug

21 Through holes

3 Electronic circuit

31 Electronic components

32 Printed circuit board

4 Connection system

41 First connection element

411 Conductive Sheet

4111 Extreme face conductive sheet

4112 Contact surface conductive sheet 42 Second connection element

421 Conductive Film

43 Third connection element

5 Insulating bushing (Block)

51 Previous Part

511 Through Hole

52 Back

53 Small Channel

6 Coaxial Cable

61 Internal conductor coaxial cable

62 External conductor coaxial cable (mesh) 7 Hinge

Claims (4)

1. Chest for communications device consisting of a chassis (1), which contains - at least one connector plug (2), - an electronic circuit (3) with electronic components (31) made on a printed circuit board (32), and - a connection system (4) consisting of a first connection element (41) and a second connection element (42), or where the first connection element41) is constituted by a conductive sheet (411), or where the second connection element (42) is constituted by a conductive film (421) deposited on the printed circuit board (32) and or where the first connection element (41) establishes galvanic contact by pressure with the second connection element (42), or where the conductive sheet (411) constituting the first connecting element (41) has a body that has an end face (4111) and a contact surface (4112), and where the conductive sheet (411) with its surface of contact (4112) located on the conductive film (421) deposited on the printed circuit board (32) constituting the second connection element (42), or where the first connection element (41) has a third connection element (43) for the inner conductor (61) of a coaxial cable (6), the internal conductor (61) being galvanically connected to the third connection element ( 43) by inserting the internal conductor (61) of the coaxial cable (6) into the third connection element (43), or where by introducing the internal conductor (61) of the coaxial cable (6) a galvanic connection is established between a mesh (62) of the coaxial cable (6) and the chassis (1), and where the hood has hinges (7) that hold the mesh (62) of the coaxial cables (6) in the at least one connector plug ( two) 2. Chest according to claim number 1 characterized by - that the conductive sheet (411) is made of elastic material, in particular copper or a copper alloy. 3. Chest according to any of the preceding claims characterized by - that the printed circuit board (32) has a first face on which the printed circuit structure is arranged, and a second face on which the conductive film (421) which constitutes the second connecting element ( 42), 4. Chest according to any of the preceding claims characterized by - that the first connection element (41) is integrated in a bushing (5) of insulating material