CN103545630B - Connecting device between a kind of plate - Google Patents

Abstract

The present invention relates to electronic technology field, particularly relate to connecting device between a kind of plate；One of apparatus of the present invention include: float plate, connector and securing member；Wherein, described float plate has the signal transmission component for connecting first circuit board, and for connecting the adapter of second circuit board；Described connector is used for supporting described float plate；Described float plate, by the through hole arranged in described float plate, is fixed on described connector by described securing member；Wherein, the diameter of section of one end of the through hole in the described float plate of described securing member traverse is less than the diameter of the through hole in described float plate；The float plate connecting first circuit board and second circuit board in apparatus of the present invention has certain range of activity, in use can according to the position of the position adjustment float plate of the adapter on second circuit board, the accumulated tolerance that can effectively coordinate between baffle。

Description

A board-to-board connection device

technical field

The invention relates to the field of electronic technology, in particular to an inter-board connection device.

Background technique

Printed Circuit Board (PCB) is an important electronic component in network communication. Among them, single board and backplane are two application types of PCB. The single board is mainly used to carry specific functional modules, while the backplane is mainly used for It is used to connect individual boards to form a complete chassis; therefore, plugging and unplugging between single boards and backplanes is often involved in chassis assembly.

The rigid connection between the single board and the backplane is mainly through the connectors respectively fixed on the single board and the backplane; in the case assembly, a single board often needs to be connected with multiple backplanes, which requires multiple backplanes Simultaneously cooperate with one single board to be plugged and unplugged, it is likely to cause one or more of the multiple backplanes to be poorly plugged into the single board, or a backplane often needs to be connected to multiple single boards, which requires multiple single boards If the boards are plugged together with a backplane at the same time, it is likely to cause one or more of the multiple boards to be plugged poorly with the backplane; that is, with this rigid connection method, the cumulative tolerance between the boards is relatively large , it is easy to cause poor plugging and unplugging of the connector.

Contents of the invention

An embodiment of the present invention provides an inter-board connection device, which is used to solve the problem of poor plugging and unplugging of connectors when the cumulative tolerance of the inter-board fit is relatively large in the manner of rigid connection between the boards.

In the first aspect, there is provided an inter-board connecting device, which is used to connect the first circuit board and the second circuit board, including: floating boards, couplings and fasteners; wherein,

The floating board has a signal transmission component for connecting to the first circuit board, and a connector for connecting to the second circuit board;

The coupling is used to support the floating plate;

The fastener fixes the floating plate on the coupling piece by passing through the through hole provided on the floating plate; wherein, the fastener passes through one end of the through hole on the floating plate The cross-sectional diameter is smaller than the diameter of the through hole on the floating plate.

With reference to the first aspect, in a first possible implementation manner, the first circuit board is a single board, and the second circuit board is a backplane.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in a second possible implementation manner, the signal transmission component is a cable, an optical fiber, or a flexible board.

With reference to the first aspect, or the first possible implementation of the first aspect, in a third possible implementation, the floating board and the first circuit board are rigid parts of the same rigid-flex board, so The signal transmission component is the flexible part of the rigid-flex board.

In a second aspect, an inter-connection device is provided, which is used to connect the first circuit board and the second circuit board, including: a floating plate and a fastener; wherein,

The floating board has a signal transmission component for connecting to the first circuit board, and a connector for connecting to the second circuit board;

The fastener fixes the floating board on the first circuit board by passing through the through hole provided on the floating board; wherein, the fastener passes through the through hole on the floating board The cross-sectional diameter of one end is smaller than the diameter of the through hole on the floating plate.

With reference to the second aspect, in a first possible implementation manner, the first circuit board is a backplane, and the second circuit board is a single board.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation manner, the signal transmission component is a cable, an optical fiber, or a flexible board.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a third possible implementation manner, the floating board and the first circuit board are rigid parts of the same rigid-flex board, so The signal transmission component is the flexible part of the rigid-flex board.

In the inter-board connection device provided in the first aspect or the second aspect of the present invention, the floating board has a signal transmission component for connecting the first circuit board and a connector for connecting the second circuit board, so that The connection between the first circuit board and the second circuit board, at the same time, because the cross-sectional diameter of one end of the through hole on the floating plate passed by the fastener is smaller than the diameter of the through hole on the floating plate, that is, the fastener After passing through the through hole on the floating plate, there is also a gap between the hole wall of the through hole on the floating plate, so that the floating plate can have a certain range of motion. The position of the connector adjusts the position of the floating board, so that the connector on the floating board can cooperate well with the connector on the second circuit board. Therefore, the device of the present invention has a certain tolerance capability and can effectively absorb the accumulation of cooperation between the boards. tolerance.

Description of drawings

Fig. 1 is a schematic diagram of an inter-board connection device provided by Embodiment 1 of the present invention;

Fig. 2 is the schematic diagram that device 1 of the present invention realizes floating connection through floating plate 11;

Fig. 3 is the schematic diagram that two floating plates 11 are installed in the device 1 of the present invention;

Fig. 4 is the schematic diagram that a plurality of connectors 11a are installed on each floating plate 11 in the device 1 of the present invention;

5 is a schematic diagram of using the two rigid parts of the rigid-flex board as the floating board 11 and the first circuit board 2 respectively in the device 1 of the present invention, and using the flexible part of the rigid-flex board as the signal transmission part 11b;

Fig. 6 is a schematic diagram of dividing the rigid part as the floating plate 11 in the rigid-flex board into two sub-parts;

FIG. 7 is a schematic diagram of an inter-board connection device provided by Embodiment 2 of the present invention;

FIG. 8 is a schematic diagram of the floating connection realized by the device 4 of the present invention through the floating plate 41 .

detailed description

The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, it is a schematic diagram of the inter-board connection device provided by Embodiment 1 of the present invention; in the embodiment of the present invention, the device 1 is used to connect the first circuit board 2 and the second circuit board 3, including: floating board 11 , couplings 12 and fasteners 13;

Wherein, the floating board 11 has a signal transmission part 11b for connecting to the first circuit board 2, and a connector 11a for connecting to the second circuit board 3;

The coupling 12 is used to support the floating plate 11;

The fastener 13 fixes the floating plate 11 on the coupling member 12 by passing through the through hole provided on the floating plate 11; wherein, the fastener 13 passes through the floating plate 11 The cross-sectional diameter of one end of the through hole on the floating plate 11 is smaller than the diameter of the through hole on the floating plate 11 .

The end of the fastener 13 that passes through the through hole on the floating plate 11 is referred to as the mating end of the fastener 13 below; The fastener 13 in the device 1 of the present invention can be any parts such as bolts and screws that can realize the connection and fix the floating plate 11 and the coupling 12, which is not limited in the embodiment of the present invention; holes can be opened on the coupling 12, Fastener 13 passes through the through hole on the floating plate 11 and the connecting piece 12, and the floating plate 11 is fixed on the connecting piece 12, and the connecting piece 12 also can not have a hole, and the fastening piece 13 passes through the hole on the floating plate 11. Through holes, and directly welded, glued, etc. with the connector 12.

When the device 1 of the embodiment of the present invention is used to connect the first circuit board 2 and the second circuit board 3, the connector 11a on the floating board 11 is inserted into the connector 3a on the second circuit board 3, due to tightness The cross-sectional diameter of the mating end of the fastener 13 is smaller than the diameter of the through hole on the floating plate 11, that is, after the fastener 13 passes through the through hole on the floating plate 11, there is still a gap 13a between the hole wall of the through hole , as shown in FIG. 2 , is a schematic diagram of the floating connection realized by the floating plate 11 of the device 1 of the present invention; like this, the floating plate 11 has a certain range of motion, and when in use, the connection on the second circuit board 3 that can be connected as required Adjust the position of the floating plate 11 by adjusting the position of the connector 3a. After the connector 11a on the floating plate 11 is well matched with the connector 3a on the second circuit board 3, fix the floating plate 11 and the coupling piece 12 through the fastener 13 Therefore, the device 1 of the present invention has a certain tolerance capability, which can effectively absorb the cumulative tolerance of simultaneous mating of multiple connectors, and prevent problems such as slot guide pins caused by plugging and unplugging.

In the above device 1, since the floating plate 11 may need to adjust its position when it is connected with the second circuit board 3, that is, the position of the floating plate 11 relative to the first circuit board 2 will change, therefore, a certain The flexible signal transmission part 11b connects the floating board 11 and the first circuit board 2 to facilitate the movement of the floating board 11; when using the device 1 to connect the first circuit board 2 and the second circuit board 3, fasteners can 12a directly connects the connecting piece 12 to the first circuit board 2, or fixes the connecting piece 12 on the fireproof board or the floor. There are many specific implementation methods, which are not limited in the embodiment of the present invention.

In addition, since the floating connection is adopted between the first circuit board 2 and the second circuit board 3 in this device 1, the weight of the circuit board can be borne by the machine frame when plugging and unplugging, and the force on the connector is small, which can effectively prevent the connector from Plugging and unplugging parts and damage; this floating connection can also effectively absorb part of the shock and vibration force received by the assembled device during transportation, and prevent the connector from being damaged due to excessive force.

In the device 1 of the present invention, the quantity of the floating plates 11 can be one or multiple, and when multiple floating plates are used, the positions between the different floating plates can be in a left-right parallel relationship, or can be stacked up and down; A floating plate can increase the flexibility of connection between the device 1 and the second circuit board 3; as shown in Figure 3, it is a schematic diagram of installing two floating plates 11 in the device 1 of the present invention; in addition, each floating plate 11 can be Install a connector 11a, also can install a plurality of connectors 11a, install a plurality of connectors 11a and can increase the overall bearing capacity of the connector in the device 1; As shown in Figure 4, for each floating plate in the device 1 of the present invention 11 is equipped with a schematic diagram of multiple connectors 11a; when the first circuit board 2 needs to be connected with multiple second circuit boards 3, multiple devices 1 of the present invention can be installed on the first circuit board 2 to realize and Connection of multiple second circuit boards 3 .

Optionally, the first circuit board 2 is a single board, and the second circuit board 3 is a backplane.

In the above-mentioned device 1, the floating board 11 is installed on the single board, and the single board realizes the floating connection between the floating board 11 and the back board, and multiple devices 1 can be installed on the single board to realize connection with different back boards.

Optionally, the above-mentioned signal transmission component 11b may specifically be a cable, an optical fiber or a flexible board.

Optionally, the floating board 11 and the first circuit board 2 can also be the rigid part of the same rigid-flex board, and at the same time, the above-mentioned signal transmission part 11b is the flexible part of the rigid-flex board; as shown in Figure 5, the rigid-flex board The flexible part of is located between two rigid parts serving as the floating board 11 and the first circuit board 2 respectively. When it is necessary to arrange multiple floating plates 11, the rigid part as the floating plate 11 in the rigid-flexible plate can be divided into two sub-parts, and each sub-part is used as a floating plate 11, as shown in Figure 6, in order to divide the rigid-flexible plate A schematic diagram of the division of the rigid part as the floating plate 11 into two sub-parts.

As shown in Figure 7, it is a schematic diagram of the inter-board connection device provided by Embodiment 2 of the present invention; in the embodiment of the present invention, the device 4 is used to connect the first circuit board 5 and the second circuit board 6, including: floating board 41 and fastener 42; where,

The floating board 41 has a signal transmission part 41b for connecting to the first circuit board 5, and a connector 41a for connecting to the second circuit board;

The fastener 42 fixes the floating board 41 on the first circuit board 5 by passing through the through hole provided on the floating board 41; wherein, the fastener 42 passes through the floating The cross-sectional diameter of one end of the through hole on the plate 41 is smaller than the diameter of the through hole on the floating plate 41 .

The end of the fastener 42 passing through the through hole on the floating plate 41 and the first circuit board 5 is referred to as the matching end of the fastener 42 below; The diameter of the hole; the fastener 42 in the device 4 of the present invention can be any component such as a bolt, a screw, etc. that can realize coupling and fix the floating plate 41 and the first circuit board 5, which is not limited in the embodiment of the present invention;

When the device 4 of the embodiment of the present invention is used to connect the first circuit board 5 and the second circuit board 6, the connector 41a on the floating board 41 is inserted into the connector 6a on the second circuit board 6. The cross-sectional diameter of the mating end of the fastener 42 is less than the diameter of the through hole on the floating plate 41, that is, after the fastener 42 passes through the through hole on the floating plate 41, there is still a gap between the hole wall of the through hole passed through. Gap 42a, as shown in Figure 8, is the schematic diagram that device 4 of the present invention realizes floating connection by floating plate 41; Like this, floating plate 41 has certain range of motion, when in use, can connect as required on the second circuit board 6 Adjust the position of the connector 6a of the floating plate 41, so that the connector 41a on the floating plate 41 cooperates well with the connector 6a on the second circuit board 6. Therefore, the device 4 of the present invention has a certain tolerance capability, It can effectively absorb the cumulative tolerance of multiple connectors mated at the same time, and prevent problems such as slot guide pins caused by plugging and unplugging.

In the above-mentioned device 4, since the floating plate 41 may need to adjust its position when it is connected with the second circuit board 6, that is, the position of the floating plate 41 relative to the first circuit board 5 will change. The flexible signal transmission part 41 b is connected to the floating board 41 and the first circuit board 5 to cooperate with the movement of the floating board 41 .

In addition, since the floating connection is adopted between the first circuit board 5 and the second circuit board 6 in this device 4, the weight of the circuit board can be borne by the machine frame when plugging and unplugging, and the force on the connector is small, which can effectively prevent the connector from Plugging and unplugging parts and damage; this floating connection can also effectively absorb part of the shock and vibration force received by the assembled device during transportation, and prevent the connector from being damaged due to excessive force.

In the device 4 of the present invention, the quantity of floating plates 41 can be one piece, and can also be multiple pieces. When multiple floating plates are used, the positions between different floating plates can be left and right parallel, or can be stacked up and down; A floating board 41 can increase the flexibility of connecting between the device 4 and the second circuit board 6; 41a can increase the overall load-bearing capacity of all connectors 41a in the device 41; when the first circuit board 5 needs to be connected with multiple second circuit boards 6, multiple devices 4 of the present invention can be installed on the first circuit board 5 , so as to realize connection with multiple second circuit boards 6 .

Optionally, the first circuit board 5 is a backplane, and the second circuit board 6 is a single board;

In the above-mentioned device 4, the floating board 41 is installed on the back board, and the back board realizes a floating connection with the single board through the floating board 41, and multiple devices 4 can be installed on the back board to realize connection with different single boards.

Optionally, the above-mentioned signal transmission component 41b may specifically be a cable, an optical fiber or a flexible board.

Optionally, the floating board 41 and the first circuit board 5 may also be rigid parts of the same rigid-flex board, and the above-mentioned signal transmission component 41b is a flexible part of the rigid-flex board.

While the foregoing have described preferred embodiments of the invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (6)

1. A connecting device between plates, characterized in that it comprises: a floating plate, a connector and a fastener, wherein: The floating board has a flexible signal transmission component for connecting to the first circuit board, and a connector for connecting to the second circuit board; The coupling is used to support the floating plate; The fastener fixes the floating plate on the coupling piece by passing through the through hole provided on the floating plate; wherein, the fastener passes through one end of the through hole on the floating plate The cross-sectional diameter is smaller than the diameter of the through hole on the floating plate. 2. The device according to claim 1, wherein the signal transmission component is a cable, an optical fiber or a flexible board. 3. The device according to claim 1, wherein the floating board and the first circuit board are rigid parts of the same rigid-flex board, and the signal transmission component is a flexible part of the rigid-flex board . 4. An inter-board connection device, characterized in that it comprises: a floating plate and a fastener; wherein, The floating board has a flexible signal transmission component for connecting to the first circuit board, and a connector for connecting to the second circuit board; The fastener fixes the floating board on the first circuit board by passing through the through hole provided on the floating board; wherein, the fastener passes through the through hole on the floating board The cross-sectional diameter of one end is smaller than the diameter of the through hole on the floating plate. 5. The device according to claim 4, wherein the signal transmission component is a cable, an optical fiber or a flexible board. 6. The device according to claim 4, wherein the floating board and the first circuit board are rigid parts of the same rigid-flex board, and the signal transmission component is a flexible part of the rigid-flex board .