CN209748900U

CN209748900U - Overvoltage protection device for assembling printed circuit board

Info

Publication number: CN209748900U
Application number: CN201821935434.0U
Authority: CN
Inventors: 克里斯蒂安·比克霍尔茨; 罗尔夫·兰格; 克里斯蒂安·拉姆瑟尔
Original assignee: Phoenix Electric Co Ltd
Current assignee: Phoenix Contact GmbH and Co KG; Phoenix Electric Co Ltd
Priority date: 2017-11-24
Filing date: 2018-11-23
Publication date: 2019-12-06
Anticipated expiration: 2028-11-23
Also published as: DE202017107133U1

Abstract

The utility model relates to an overvoltage protection appliance (1) for assembling to Printed Circuit Board (PCB), including at least two electrical connector (A1, A2), be used for overvoltage protection device with provide electrical contact between the circuit on Printed Circuit Board (PCB), wherein, two electrical connector (A1, A2) are configured to be held in two corresponding receiving openings of Printed Circuit Board (PCB), wherein, two electrical connector (A1, A2) each have at least two relative spaced elasticity sections, elasticity section reduces their relative interval when inserting corresponding receiving opening of Printed Circuit Board (PCB), have realized providing under the inserted state can be with the connection of mechanical release mode. The utility model discloses can make things convenient for the low cost to reequip equipment.

Description

Overvoltage protection device for assembling printed circuit board

Technical Field

The utility model relates to an overvoltage protection utensil for assembling printed circuit board.

Background

Electronic devices are becoming increasingly sensitive to overvoltage events. Therefore, overvoltage protection devices have been provided in a wide variety of fields.

But the manner and method of providing overvoltage protection was previously extremely inflexible.

For example, printed circuits/boards are currently provided for use with a variety of similar appliances, which cannot be provided by later assembly. In this case, there are usually provided elements that are used by some appliances but not others. Unfortunately, retrofitting such components is not easy to implement, so that, for example, overvoltage protection, which may not be useful, cannot be retrofitted afterwards.

On the other hand, it should also be noted that large installations already have effective overvoltage protection, so that their own overvoltage protection is no longer necessary. That is, this involves a costly double insurance.

Disclosure of Invention

In view of the above, it would be desirable to provide an overvoltage protection device for assembly onto a printed circuit board that can be retrofitted to equipment at low cost.

the utility model discloses a solution for reaching above-mentioned purpose does:

An overvoltage protection device for assembly to a printed circuit board, said overvoltage protection device comprising at least two electrical connectors for providing electrical contact between an overvoltage protection means and lines on said printed circuit board, said two electrical connectors being configured to be received in two corresponding receiving openings of said printed circuit board, said two electrical connectors each having at least two oppositely spaced resilient sections which, when inserted into corresponding receiving openings of the printed circuit board, reduce the distance between the two oppositely spaced resilient sections, enabling the two resilient sections to be mechanically releasably connected in the inserted state.

Further: the overvoltage protection device comprises a socket with at least two electrical connectors and a containing opening for a plug, wherein an overvoltage protection device is contained in the plug, and a corresponding device used for releasing and maintaining the electrical connection is arranged between the plug and the socket.

Further: the overvoltage protection device comprises a conductive element which bridges an electrical break of the printed circuit board, the conductive element being operated as a function of the state of the overvoltage protection device.

Further: the conductive element bridges an open circuit at a through hole of the printed circuit board laterally and/or on a surface of the printed circuit board.

Further: the overvoltage protection means are provided with a mechanical coding which is matched to an overvoltage protection device on the printed circuit board with a corresponding coding.

further: the spring sections, when inserted into the corresponding receiving openings of the printed circuit board, reduce their relative spacing and subsequently expand the spacing again, so that in the inserted state a mechanically releasable connection is provided.

The utility model discloses can make things convenient for the low cost to reequip equipment.

Drawings

The present invention will be described in detail with reference to the accompanying drawings. In the drawings:

Fig. 1 schematically shows an exploded view of an overvoltage protection device according to an embodiment of the invention;

Fig. 2 schematically shows a side view of an overvoltage protection device according to an embodiment of the invention;

Fig. 3 schematically shows a detailed side view of an overvoltage protection device according to an embodiment of the invention;

Fig. 4 schematically shows a side view of an overvoltage protection device according to an embodiment of the invention in further detail;

Fig. 5 schematically shows a side view of a further detailed embodiment of an overvoltage protection device according to an embodiment of the invention;

Fig. 6 a schematically shows a side view of an overvoltage protection device according to an embodiment of the invention in further detail; and

fig. 6 b schematically shows a side view of an overvoltage protection device according to another embodiment of the invention in further detail;

Fig. 7 a schematically shows a detailed side view of an overvoltage protection device according to an embodiment of the invention in a first state;

Fig. 7 b schematically shows a detailed side view of an overvoltage protection means according to an embodiment of the invention in a second state.

list of reference numerals

1 overvoltage protection device

PCB printed circuit board

A1, A2 electric joint

S socket

US plug

SK conductive element

P mechanical holding element

DB Via/metallized Via

V-shaped locking device

KB contact regions.

Detailed Description

The invention will be explained in more detail below with reference to the drawings. It should be noted that various aspects are described herein, which can be used individually or in combination accordingly. That is, any aspect may be used with different embodiments of the present invention, unless explicitly stated only as an alternative.

furthermore, for the sake of brevity, the following generally refers to only one entity. The present invention may also include a plurality of related entities, unless explicitly stated otherwise. In this regard, the use of the terms "a", "an" and "the" should be understood to mean that at least one entity is used in a simple implementation.

The overvoltage protection device 1 according to the invention is shown in various embodiments in the figures. The overvoltage protection device 1 is adapted to be assembled to a printed circuit board PCB. The overvoltage protection appliance 1 comprises at least two electrical connections a1, a2 for providing electrical contact between the overvoltage protection device (in the overvoltage protection appliance 1) and the lines on the printed circuit board PCB.

The two electrical connectors a1, a2 are configured to be received in two corresponding receiving openings of the printed circuit board PCB. To this end, the two electrical connectors a1, a2 each have at least two oppositely spaced resilient sections which, when inserted into corresponding receiving openings of the printed circuit board PCB, reduce their corresponding spacing and then optionally expand the spacing again. It is thus achieved that in the inserted state two oppositely spaced elastic segments have a mechanically releasable connection, wherein a secure retention and/or an optional distance enlargement by elastic tension is provided.

This is shown, for example, in fig. 6 a and b. The electrical connector is shown configured as a stamped part. The lower region allows insertion into a receiving opening on the printed circuit board PCB, while the upper region can be tulip-shaped, for example, to be electrically contacted and mechanically held by an overvoltage element. Of course, the electrical connectors a1, a2 may also secure the housing components to the circuit board PCB. As shown in fig. 1 and b of fig. 6, the electrical connectors a1, a2 may of course also have curved portions. Thus, contact with the circuit board can be achieved in the contact region KB.

That is, due to the insertability of the joint, subsequent assembly can be performed without brazing, if necessary. At the same time, by means of the mechanically releasable embodiment, the overvoltage protection means 1 can also be removed if it is no longer required or if it fails.

In an embodiment of the invention, the overvoltage protection device 1 (as shown in fig. 2) comprises a socket S with at least two electrical connections a1, a2 and a receiving opening for a plug US. In this embodiment, the plug US contains an overvoltage protection. Corresponding means for releasably retaining and providing an electrical connection are then provided in the plug US and the socket S. That is, in this embodiment, for example, existing overvoltage plugs that can be replaced as needed (e.g., in the event of a fault) can be made available. In contrast, a one-piece solution is shown in fig. 1.

In a further embodiment of the invention, the overvoltage protection means 1 comprises a conductive element SK which is adapted to bridge an electrical cut-out on the printed circuit board PCB, wherein the conductive element SK is operated depending on the state of the overvoltage protection device.

that is to say, by means of a simple operating element, which can be designed, for example, in the form of a plunger, a mechanical display/change of state of the electrical connection can be implemented, similar to a switch. This can for example provide simple telecommunication.

Such a conductive element SK may for example be inserted into a via/metalized via, wherein the via/metalized via DB represents the location of an electrical disconnection of the line. For example, in the embodiment of fig. 4, the conductive elements provide contacts only at the sidewalls (thick black lines). If conductive element SK is inserted into through hole DB, conductive element SK brings together two previously separated sections and engages the "switch". In the embodiment of fig. 5, a contact is additionally applied to the surface, whereby a better contact can be provided and possibly more current can flow. That is, the sides of the conductive element SK and/or the open circuit at the via DB of the printed circuit board PCB are bridged on the surface of the printed circuit board PCB.

In fig. 7 a is shown the case where for example the conductive element SK signals a first state, while in fig. 7 b the case where a second state is shown. It is clear that in addition to the change of state of the overvoltage protection, it is also possible to signal an operating mode for signaling other states (e.g. presence/absence of overvoltage protection). For secure signaling, as shown in fig. 7 a and 7 b, a spring may also be provided which securely detaches or securely docks the conductive element to the printed circuit board PCB.

in a further embodiment of the invention, the overvoltage protection means 1 has a mechanical coding, so that only overvoltage protectors on the printed circuit board PCB can be used which have a corresponding coding in match with the mechanical coding. This ensures that, for example, only certain overvoltage protectors can be used, so that the safety function of the overvoltage protection and the circuits implemented on the circuit board PCB can be realized. Thus, the presence of incorrect assembly can be avoided.

Furthermore, it can be provided that a mechanical locking device V is provided. The mechanical locking device can be configured, for example, to insert a (plastic) pin into the hollow insertion part, so that the insertion part cannot be compressed further. Such an insert is, for example, a mechanical holding element P which can be arranged on a housing or housing part of the appliance 1. This embodiment is shown in its unfixed state in fig. 1, for example. In contrast, in fig. 7 a and 7 b, the latching device V is inserted into the mechanical holding element P and thus locks the connection (in a releasable manner).

Claims

1. an overvoltage protection arrangement (1) for assembling a printed circuit board, characterized in that the overvoltage protection arrangement comprises at least two electrical connectors (a 1, a 2) for providing electrical contact between an overvoltage protection device and lines on the Printed Circuit Board (PCB), the two electrical connectors (a 1, a 2) being configured to be received in two corresponding receiving openings of the Printed Circuit Board (PCB), the two electrical connectors (a 1, a 2) each having at least two oppositely spaced resilient sections which, when inserted into corresponding receiving openings of the Printed Circuit Board (PCB), reduce the mutual spacing of the two oppositely spaced resilient sections, enabling a mechanically releasable connection of the two resilient sections in the inserted state.

2. Overvoltage protection means (1) according to claim 1, characterized in that the overvoltage protection means (1) comprises a socket (S) with at least two electrical connections (a 1, a 2) and a receiving opening for a plug (US) in which overvoltage protection means are incorporated, wherein corresponding means for releasable provision of an electrical connection are provided between the plug (US) and the socket (S).

3. The overvoltage protection appliance (1) according to claim 1 or 2, characterized in that it comprises a conductive element (SK) which bridges an electrical break of the Printed Circuit Board (PCB), the conductive element (SK) being operated depending on the state of the overvoltage protection device.

4. The overvoltage protection appliance (1) according to claim 3, characterized in that the sides of the conductive element (SK) and/or the break at the through hole of the Printed Circuit Board (PCB) are bridged on the surface of the Printed Circuit Board (PCB).

5. The overvoltage protection appliance (1) according to the preceding claim 4, characterized in that the overvoltage protection appliance (1) is provided with a mechanical coding which matches the overvoltage protection on a Printed Circuit Board (PCB) with a corresponding coding.

6. Overvoltage protection means (1) according to claim 1, characterized in that the resilient sections upon insertion into the corresponding receiving openings of the Printed Circuit Board (PCB) reduce their mutual distance and subsequently enlarge the distance again, providing a mechanically releasable connection in the inserted state.