CN114071865A

CN114071865A - Golden finger connector, female end connector and communication equipment

Info

Publication number: CN114071865A
Application number: CN202010753729.1A
Authority: CN
Inventors: 陈祖玉; 谭威; 陈宗训
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2022-02-18

Abstract

The application provides a golden finger connector, female end connector and communications facilities, golden finger connector includes base plate, power pin and signal pin. The substrate is used as a supporting structure for bearing the power supply pin and the signal pin. The number of the signal pins is multiple, when the signal pins are arranged on the substrate, the signal pins are arranged into at least two rows along a second direction, and the second direction is the plugging direction of the golden finger connector. The number of the power pins is multiple, the power pins are arranged side by side along a first direction, and the first direction is vertical to a second direction. When the structure is adopted, the signal pins are arranged into at least two lines, so that the space area occupied by the signal pins in the first direction is reduced, the arrangement area of the power supply pins can be increased, the arrangement number of the power supply pins is increased, the heat consumption generated by the power supply pins is reduced when the golden finger connector is connected in a plugging mode, and the working reliability of the golden finger connector is improved.

Description

Golden finger connector, female end connector and communication equipment

Technical Field

The application relates to the technical field of electricity, in particular to a golden finger connector, a female terminal connector and communication equipment.

Background

In the field of IT server power supply, power supply modules continue to be developed to high power and miniaturization, and the gold finger connectors are also required to be miniaturized as devices connected with the power supply modules so as to match the power supply modules. The size of the golden finger connector is continuously reduced, the width of a power supply pin of the golden finger connector and the number of reeds of a female connector matched with the golden finger connector are continuously reduced, so that heat consumption generated by large through current at the power supply pin is increased, and overtemperature failure is easily caused (the long-term working temperature of the golden finger connector cannot exceed the MOT (metal oxide temperature) of the material, 125 ℃, and the standard temperature rise in the industry of the female connector is not more than 30 ℃). Under the condition that the width size of the golden finger connector is limited, the main solutions in the industry at present start with the golden finger connector and the female terminal connector corresponding to the power supply pins, on one hand, the golden finger connector is designed by using special processes such as copper embedding and the like, so that the impedance of Rpcb is reduced, and the board-level internal through-current capacity is increased; on one hand, the female end connector is designed by sampling a double-layer golden finger contact reed or a front and back double-contact reed, so that the resistance of the Rc contact is reduced, and the through-current capacity of the female end connector is improved. However, the two improvement modes only improve the through-current capacity to a certain extent, the improvement effect is limited, the improvement is generally between 5% and 10%, and the future power increase requirement cannot be met.

Disclosure of Invention

The application provides a golden finger connector, a female end connector and a communication device, which are used for improving the connection reliability of the communication device.

The application provides a golden finger connector which is applied to communication equipment. The golden finger connector comprises a substrate, a power supply pin and a signal pin. The substrate is used as a supporting structure for bearing the power supply pin and the signal pin. For convenience of description, the plurality of signal pins are divided into signal pin groups, and the plurality of power pins are divided into power pin groups. The power pin group and the signal pin group are arranged side by side along a first direction. The plurality of power supply pins are arranged side by side in a first direction. The signal pins are arranged in at least two rows along a second direction perpendicular to the first direction, and the signal pins in the same row are arranged side by side along the first direction. The first direction is perpendicular to the plugging direction of the golden finger connector. When the structure is adopted, the signal pins are arranged into at least two rows, the space area occupied by the signal pins in the first direction is reduced, the width of the power supply pins in the first direction can be increased, the number of the contact reeds of the female end connector corresponding to the power supply pins can be increased, the heat consumption caused by the impedance and the through-current of the power supply pins is reduced, and the reliability of the golden finger connector and the female end connector in working is improved.

In a specific embodiment, the number of signal pins in each row of signal pins is the same; and the plurality of signal pins are arranged in an array. The signal pins may be arranged in an array arrangement.

In a specific possible embodiment, when signal pins arranged in an array are employed, the signal pins may be arranged in two rows of signal pins, three rows of signal pins, four rows of signal pins, and the like. The flexibility of signal pin layout is improved.

In a specific embodiment, when the signal pins are arranged in an array, the signal pins have the same size, such as rectangular, oval, circular, and other shapes with the same size.

In a specific possible embodiment, the plurality of signal pins are arranged in two rows of signal pins; the number of the signal pins in the first row of the two rows of the signal pins is not equal to the number of the signal pins in the second row of the two rows of the signal pins. The first row of signal pins are a row of signal pins close to the insertion end of the substrate; the second row of signal pins are a row of signal pins far away from the insertion end of the substrate. The signal pins are arranged in different arrangement modes through each row of signal pins, so that the signal pins are convenient to arrange.

In a specific possible implementation, at least one of the first row signal pins or the second row signal pins is individually arranged in columns. The signal pins are arranged in different arrangement modes through each row of signal pins, so that the signal pins are convenient to arrange.

In a specific embodiment, the size of the signal pins in the single column is equal to the size of the remaining signal pins. The signal pins are arranged in different arrangement modes through each row of signal pins, so that the signal pins are convenient to arrange.

In a specific embodiment, the length of the dimension of the signal pin in the second direction is greater than the length of the rest of the signal pins in the second direction. The signal pins are convenient to connect with the corresponding golden finger connectors.

In a specific possible implementation, the signal pins in the first row of signal pins are arranged in a staggered manner with respect to the signal pins in the second row of signal pins. The signal pins are convenient to connect with the corresponding golden finger connectors.

In a second aspect, there is provided a female end connector comprising: the body, the body has the slot, and this slot is used for cooperating with golden finger connector. The female end connector also comprises a power reed group which comprises a plurality of pairs of power reeds, wherein two power reeds in each pair of power reeds are respectively arranged on two opposite inner walls of the slot, the plurality of pairs of power reeds are arranged in the slot side by side along a first direction, and the first direction is perpendicular to the plugging direction of the female end connector; the signal reed group comprises a plurality of pairs of signal reeds, two signal reeds in each pair of signal reeds are respectively arranged on two opposite inner walls of the slot, the plurality of pairs of signal reeds are arranged into at least two rows along the direction perpendicular to the plugging and unplugging direction of the female end connector, and signal pins in the same row are arranged side by side along the first direction; wherein the power reed set and the signal reed set are arranged side by side along the first direction. The signal reed is reduced in the space area occupied by the first direction, so that the width of the power supply reed in the first direction can be increased, the number of the power supply reeds is increased, the plugging contact resistance of the female end connector is reduced, the heat consumption generated by through-flow is reduced, the temperature of the female end connector is reduced, and the reliability of the female end connector in working is improved.

In a specific embodiment, the logarithm of the signal reeds in each row of signal reeds is the same; and the multiple pairs of signal reeds are arranged in an array. The signal reeds may be arranged in an array arrangement.

In a specific embodiment, when signal strips are arranged in an array, the signal strips can be arranged in different rows, such as two rows, three rows, four rows, and the like. The flexibility of signal reed layout is improved.

In a specific possible embodiment, the plurality of pairs of signal reeds are arranged in two rows; the logarithm of the signal reeds in the first row of signal reeds is smaller than the logarithm of the signal reeds in the second row of signal reeds; the first row of signal reeds is a row of signal reeds close to the insertion end of the body; the second row of signal reeds is a row of signal reeds far away from the insertion end of the body. The flexibility of signal reed layout is improved.

In a specific possible embodiment, the plurality of pairs of signal reeds are arranged in two rows; the logarithm of the signal reeds in the first row of signal reeds is not equal to the logarithm of the signal reeds in the second row of signal reeds, and the first row of signal reeds is closer to the insertion end of the body relative to the second row of signal reeds. The flexibility of signal reed layout is improved.

In a specific possible embodiment, at least one pair of signal reeds in the first row of signal reeds and the second row of signal reeds are individually in columns. The flexibility of signal reed layout is improved.

In a specific possible embodiment, the signal reeds in the first row of signal reeds are offset from the signal reeds in the second row of signal reeds. The flexibility of signal reed layout is improved.

In a third aspect, a communication device is provided, which includes any one of the above golden finger connectors and any one of the above female end connectors, and the golden finger connectors are connected with the female end connectors in a plugging manner. When the structure is adopted, the signal pins are arranged into at least two rows, the space area occupied by the signal pins in the first direction is reduced, the width of the power supply pins in the first direction can be increased, the number of the contact reeds of the female end connector corresponding to the power supply pins can be increased, the impedance of the power supply pins and the heat consumption generated by through-flow are reduced, and the reliability of the golden finger connector and the female end connector in working is improved

Drawings

FIG. 1 is a schematic diagram of a gold finger connector and a female connector in the prior art;

FIG. 2 is a schematic diagram of a power pin and a power spring in the prior art;

fig. 3 is a schematic structural diagram of a gold finger connector according to an embodiment of the present disclosure;

fig. 4 is another schematic structural diagram of a gold finger connector according to an embodiment of the present disclosure;

fig. 5 is another schematic structural diagram of a gold finger connector according to an embodiment of the present disclosure;

fig. 6 is another schematic structural diagram of a gold finger connector according to an embodiment of the present disclosure;

fig. 7 is another schematic structural diagram of a gold finger connector according to an embodiment of the present application;

fig. 8 is another schematic structural diagram of a gold finger connector according to an embodiment of the present disclosure;

fig. 9 is another schematic structural diagram of a gold finger connector according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a female connector provided in an embodiment of the present application;

figure 11 is a side view of a female end connector provided in embodiments of the present application.

Detailed Description

The embodiments of the present application will be further described with reference to the accompanying drawings.

First, an application scenario of the gold finger connector according to the present application will be described. The golden finger connector provided by the embodiment of the application is suitable for communication equipment, such as the field of power supplies of IT servers, and serves as a device connected with a power module and is used for being connected with a female end connector in the power module in a plugging mode.

The gold finger connector is different from a conventional PCB (Printed Circuit Board) which is electrically connected to other devices and generally needs to be connected through a specific connector terminal as a bridge, and in the case of the gold finger connector, the gold finger connector is connected to a female connector through a gold finger plating layer at the edge of the Board. The method comprises plating a thin layer of gold powder on the nickel-plated layer of copper foil at the edge of one of the plates, and is used as an electrical connection pin for connecting with other devices. The corresponding female end connector clamps the golden finger connector through the elasticity of the reed, and the electric connection is completed through the contact. The golden finger connector and the female end connector are matched as shown in figure 1. Golden finger connector 1 has a plurality of signal pins 3 and power pin 2, and female end connector 2 that corresponds has a plurality of signal reed 6 and a plurality of power reed 5, and golden finger connector 1 inserts in female end connector 2 along direction a, and signal pin 3 is connected with signal reed 6, and power pin 2 is connected with power reed 5, realizes switching on between them.

When the golden finger connector is used, the heat consumption of the golden finger connector needs to be considered, and the influence of overhigh heat consumption on the normal use of the golden finger connector is avoided. The heat consumption generated by the large through-current interconnection of the golden finger connector and the female end connector meets the following formula: er ═ I2 Rt. Wherein Er is heat generated by through-flow of the golden finger connector and the female end connector, namely heat consumption; i is current; rt is the resistance of the circuit formed by the golden finger connector and the female terminal connector, as shown in fig. 2, the connection between the power pin and the power reed is illustrated. As can be seen from fig. 2, Rt comprises: the resistance Rpcb of the gold finger connector 1 and the resistance Rc at the connection of the gold finger connector 1 and the female terminal connector 4. To improve Er, the following aspects are generally adopted: 1. rpcb can be reduced by increasing the width and thickness of the large-current network of the gold finger connector 1; 2. rc is reduced by increasing the contact area of the contact reed of the female end connector 4. Through the mode, the through-flow loss can be reduced, the through-flow temperature is reduced, and therefore higher power transmission is achieved. The gold finger connector and the female terminal connector provided in the embodiments of the present application are described below with reference to the above-mentioned principles.

First, a first direction and a second direction are defined, wherein the first direction is perpendicular to the plugging and unplugging direction of the golden finger connector, and the second direction is perpendicular to the first direction, namely, the second direction is the plugging and unplugging direction of the golden finger connector.

Fig. 3 shows a schematic structural diagram of a gold finger connector provided in an embodiment of the present application. The gold finger connector 100 includes a substrate 130 for carrying the components of the gold finger connector 100. The devices may be a power pin set 120, a signal pin set 110, and a circuit and a chip.

The substrate 130 has a first surface and a second surface, where the first surface and the second surface are opposite surfaces of the substrate 130, and both the first surface and the second surface can be used for carrying devices. When the device is provided, the device may be provided only on the first surface or the second surface, or may be provided on both the first surface and the second surface.

In an optional scheme, the material of the substrate 130 provided in the embodiment of the present application is not limited to the material of the common substrate, such as glass fiber cloth, glass fiber and paper composite material, ceramic, and metal material.

The substrate 130 shown in fig. 3 is a rectangular substrate, but the substrate 130 is only a specific embodiment, and the shape of the substrate 130 provided in the embodiments of the present application may also be other shapes, such as trapezoidal, pentagonal, triangular, and other modified forms. The miniaturization development of the adaptive power supply module can be achieved only by meeting the requirement of sufficient space setting devices.

As an alternative, the first direction is parallel to the long side of the substrate 130, and the second direction is parallel to the short side of the substrate 130, so as to facilitate the insertion and extraction of the gold finger connector 100.

The devices disposed on the substrate 130 at least include a power pin group 120 and a signal pin group 110, and the power pin group 120 and the signal pin group 110 are arranged along a first direction. The power pin set 120 is used for electrically connecting with the female terminal connector, and the signal pin set 110 is used for signal communication with the female terminal connector. The power pin set 120 includes a plurality of power pins 121, and the signal pin set 110 includes a plurality of signal pins 111. It should be understood that the "plurality" referring to the number in the embodiments of the present application includes two or more numbers, such as two, three, four, etc. different numbers.

When the plurality of power pins 121 are arranged, the plurality of power pins 121 are arranged in a single row, and the plurality of power pins 121 are arranged side by side along the first direction. Illustratively, each power pin 121 is a rectangular metal layer, a long side of the power pin 121 is parallel to a short side of the substrate 130 (i.e., perpendicular to the first direction), and the short side of the power pin 121 is parallel to the long side of the substrate 130. The rectangular power pin 121 is merely an example of a specific power pin 121, and the shape of the power pin 121 provided in the embodiment of the present application may also include, but is not limited to, a circle, a prism, an ellipse, and the like.

As an alternative, the plurality of power pins 121 may be a unitary structure, that is, one power pin 121 is disposed on the substrate 130 and connected to the plurality of pairs of power springs in the female terminal connector, so as to further reduce the resistance of the electrical connection.

When the plurality of signal pins 111 are arranged, the plurality of signal pins 111 are arranged in at least two rows along a second direction perpendicular to the first direction, and the signal pins 111 located in the same row are arranged side by side along the first direction. For example, the plurality of signal pins 111 may be arranged in two rows of signal pins, three rows of signal pins, four rows of signal pins, and so on. In the embodiment of the present application, the signal pins 111 are arranged in two rows for illustration.

In an alternative scheme, the number of the signal pins 111 in each row of the signal pins 111 is the same, and the plurality of signal pins 111 are arranged in an array. The array arrangement is indicated as a manner in which the plurality of signal pins 111 are arranged in a matrix, that is, the plurality of signal pins 111 are arranged in a row in the first direction and in a column in the second direction, and 8 signal pins 111 (signal 1, signal 2, signal 3, signal 4, signal 5, signal 6, signal 7, and signal 8) shown in fig. 3 are exemplified and arranged in an array. Signal 1, signal 2, signal 3, signal 4 are arranged as signal pins 111 in the first row of signal pins 113; signal 5, signal 6, signal 7, and signal 8 are arranged in a second row of signal pins 112. The first and second row signal pins 113 and 112 are arranged in the second direction. Wherein the first row of signal pins 113 is proximate to the insertion end of the gold finger connector 100. The insertion end of the gold finger connector 100 refers to an end that is inserted into the female terminal connector when the gold finger connector 100 is mated with the female terminal connector. The second row of signal pins 112 is distal from the insertion end of the gold finger connector 100.

In an alternative scheme, the signal pins 111 have the same size, and each signal pin 111 has a rectangular signal pin 111. The long sides of the signal pins 111 are parallel to the short sides of the substrate 130 (i.e., perpendicular to the first direction), and the short sides of the signal pins 111 are parallel to the long sides of the substrate 130. The rectangular signal pin 111 is merely an example of a specific signal pin 111, and the shape of the signal pin 111 provided in the embodiments of the present application may also include, but is not limited to, a circle, a prism, an ellipse, and the like.

Conventional layout methods can be adopted for devices such as circuits and chips carried on the gold finger connector 100, and detailed description thereof is omitted in this application.

As can be seen from the connection between the power supply pin and the power supply reed, and the relationship between the heat generated by the current flowing and the reed contact resistance and the resistance of the gold finger connector shown in fig. 2, when the width of the power supply pin 121 is increased, Rpcb of the gold finger connector is reduced, the current loss is reduced, and the current capacity is improved. When the number of power supply reeds in the female terminal connector is increased, the Rc contact is reduced, the current loss is reduced, and the current capacity is improved.

At present, the through-current density of the golden finger connector 100 is already 45A/mm²Reduced to 6A/mm². The current capacity of each pair of power reeds is increased to 35A/pair. The signal pins 111 are arranged in an array manner according to the embodiment of the present disclosure, so that more power pins 121 can be disposed in the saved space, and the current that can be increased by the gold finger connector 100 increases with the increase of the power pins 121.

Take the example that the distance between the center points of two adjacent signal pins 111 shown in fig. 3 is 1.5 mm. The distance between adjacent signal reeds of the female end connector is 1.5mm, the power pins 121 are arranged in a single row, and the distance between corresponding adjacent power reeds is 5 mm. The gold finger connector 100 has a total length of 53 mm. In this embodiment, 8 signals are arranged in two rows, and compared with the mode of arranging signal pins in a single row in the prior art, the occupied space can be saved by 4 × 1.5mm — 6mm, and the space is vacated for power supplyThe power pin 121, such that the power pin 121 would be increased by 6mm in width. Similarly, the female terminal connector can be correspondingly added with 1 pair of power supply reeds. The current capacity standard of the current golden finger connector 100 is 6A/mm²The current capacity of the power source reed of the female end connector is 35A/every pair of reeds, the current capacity of the power source reed of the female end connector is increased by 1 pair, the current capacity of the power source reed of the female end connector is increased by 36A, and the current capacity of the power source reed of the female end connector is increased after the golden finger connector 100 is connected with the female end connector.

In addition, when the golden finger connector 100 provided by the embodiment of the application is adopted, when the size of the golden finger connector 100 is reduced from 68mm to 50mm, the switching capacity of 8 pairs of signal output and 3000W high power can still be ensured. The miniaturization development of the power supply module is adapted, and the effect of matching with the power supply module is improved.

Fig. 4 shows an expanded example of the gold finger connector shown in fig. 3. The numbering in fig. 4 may refer to the same numbering in fig. 3. In the golden finger connector 100 shown in fig. 4, the shapes of the signal pin 111 and the power pin 121 are the same as those of the signal pin 111 and the power pin 121 of the golden finger connector 100 shown in the middle of fig. 3, and therefore, the description thereof is omitted.

The gold finger connector 100 shown in fig. 4 is different from the gold finger connector 100 shown in fig. 3 in the number and arrangement of the signal pins 111. In fig. 4, the signal pin 111 includes: signal 11, signal 12, signal 13, signal 14, … … signal nm. The plurality of signal pins 111 are arranged in n rows, n is a positive integer greater than or equal to 2, and m is a positive integer greater than 3. In fig. 4, the number of signal pins 111 is more (n × m), so that more space is saved for the power pins 121 in the lateral space, the current capacities of the gold finger connector 100 and the female terminal connector of the power pins 121 can be greatly improved, and the high-power switching capacity of the gold finger connector and the female terminal connector can be improved.

As can be seen from fig. 3 and 4, in the gold finger connector 100 provided in the embodiment of the present application, when the signal pins 111 are arranged in an array, the signal pins 111 may be arranged in different rows, such as two rows, three rows, four rows, and the like. On one hand, the flexibility of the layout of the signal pins 111 can be improved, and on the other hand, the layout space of the power pins 121 can be improved when the size of the gold finger connector 100 is reduced.

The arrangement mode of the signal pins on the golden finger connector provided by the embodiment of the application can also adopt other modes, for example, the number of the signal pins in the first row of the two rows of signal pins is not equal to the number of the signal pins in the second row of the two rows of signal pins. The following description is made with reference to the accompanying drawings.

Fig. 5 shows another schematic structural diagram of the gold finger connector provided in the embodiment of the present application. Part numbers in fig. 5 may refer to the same numbers in fig. 3. In the golden finger connector 100 shown in fig. 5, the shapes of the signal pin 111 and the power pin 121 are the same as those of the signal pin 111 and the power pin 121 of the golden finger connector 100 shown in the middle of fig. 3, and therefore, the description thereof is omitted.

The gold finger connector 100 shown in fig. 5 is different from the gold finger connector 100 shown in fig. 3 in the number and arrangement of the signal pins 111. The signal pins 111 provided by this embodiment are arranged in two rows, and the two rows of signal pins are arranged along the second direction. The number of the signal pins 111 in the first row signal pins 113 is smaller than the number of the signal pins 111 in the second row signal pins 112. The first row of signal pins 113 is a row of signal pins 111 near the insertion end of the substrate 130; the second row of signal pins 112 is a row of signal pins 111 away from the insertion end of the substrate 130.

As an optional scheme, at least one signal pin 111 in the second row of signal pins 112 is individually arranged in a column, and taking the example of 7 signal pins 111 in fig. 5 as an example, the 7 signal pins 111 are signal 1, signal 2, signal 3, signal 4, signal 5, signal 6, and signal 7, respectively. Wherein, the

signals

2, 3, 4 are arranged into the first row signal pins 113; signal 1, signal 5, signal 6, and signal 7 are arranged in a second row of signal pins 112. In addition, in the second direction, signals 2 and 5 are arranged in columns, signals 3 and 6 are arranged in columns, signals 4 and 7 are arranged in columns, and signal 1 is arranged in columns alone. In fig. 5, one signal pin 111 is illustrated as being arranged in a column, but the number of signal pins 111 arranged in a single column is not limited in the present application, and two, three, etc. different numbers of signal pins 111 may be arranged in a column.

As an alternative, the shape and size of the signal 1 and the rest of the signal pins 111 are equal, that is, the size of the signal pin 111 in a single column is equal to the size of the rest of the signal pins 111.

Fig. 6 shows another schematic structural diagram of the gold finger connector provided in the embodiment of the present application. Part numbers in fig. 6 may refer to the same numbers in fig. 3. In the golden finger connector 100 shown in fig. 6, the shapes of the signal pin 111 and the power pin 121 are the same as those of the signal pin 111 and the power pin 121 of the golden finger connector 100 shown in the middle of fig. 3, and therefore, the description thereof is omitted.

The gold finger connector 100 shown in fig. 6 is different from the gold finger connector 100 shown in fig. 3 in the number and arrangement of the signal pins 111. The signal pins 111 provided in this embodiment are arranged in two rows along the second direction, and the number of the signal pins 111 in the first row of signal pins 113 is greater than the number of the signal pins 111 in the second row of signal pins 112. The first row of signal pins 113 is a row of signal pins 111 near the insertion end of the substrate 130; the second row of signal pins 112 is a row of signal pins 111 away from the insertion end of the substrate 130.

As an alternative, at least one signal pin 111 in the first row of signal pins 113 is individually arranged in a column, and taking the example of 7 signal pins 111 in fig. 6 as an example, the 7 signal pins 111 are signal 1, signal 2, signal 3, signal 4, signal 5, signal 6, and signal 7, respectively. Wherein, the signal 1, the signal 2, the signal 3, and the signal 4 are arranged as the first row signal pin 113; signal 5, signal 6, and signal 7 are arranged in a second row of signal pins 112. In addition, in the second direction, signals 2 and 5 are arranged in columns, signals 3 and 6 are arranged in columns, signals 4 and 7 are arranged in columns, and signal 1 is arranged in columns alone. In fig. 6, one signal pin 111 is illustrated as being arranged in a column, but the number of signal pins 111 arranged in a single column is not limited in the present application, and two, three, etc. different numbers of signal pins 111 may be arranged in a column.

Fig. 7 shows another schematic structural diagram of the gold finger connector provided in the embodiment of the present application. Part numbers in fig. 7 may refer to the same numbers in fig. 3. In the golden finger connector 100 shown in fig. 7, the shapes of the signal pin 111 and the power pin 121 are the same as those of the signal pin 111 and the power pin 121 of the golden finger connector 100 shown in the middle of fig. 3, and therefore, the description thereof is omitted.

The gold finger connector shown in fig. 7 is different from the gold finger connector shown in fig. 3 in the number and arrangement of the signal pins 111. The signal pins 111 provided in this embodiment are arranged in two rows along the second direction, and the number of the signal pins 111 in the first row of signal pins 113 is not equal to the number of the signal pins 111 in the second row of signal pins 112. The first row signal pins 113 are a row of signal pins 111 near the insertion end of the substrate 130; the second row of signal pins 112 is a row of signal pins 111 away from the insertion end of the substrate 130.

As an optional solution, at least one signal pin 111 in the first row signal pin 113 or the second row signal pin 112 is individually arranged in a column, and taking the example of 7 signal pins 111 in fig. 7 as an example, the 7 signal pins 111 are signal 1, signal 2, signal 3, signal 4, signal 5, signal 6, and signal 7, respectively. Wherein, the

signals

2, 3, 4 are arranged into the first row signal pins 113; signal 5, signal 6, and signal 7 are arranged in a second row of signal pins 112. In addition, in the second direction, the

signals

2 and 5 are arranged in columns, the

signals

3 and 6 are arranged in columns, and the

signals

4 and 7 are arranged in columns. And the signal 1 is individually arranged in a column, and the length of the signal 1 is greater than the length of the rest of the signal pins 111, i.e. the length of the dimension of the signal pin 111 in the individual column in the second direction is greater than the length of the rest of the signal pins 111 in the second direction.

Fig. 8 shows another schematic structural diagram of the gold finger connector provided in the embodiment of the present application. Part numbers in fig. 8 may refer to the same numbers in fig. 3. In the golden finger connector 100 shown in fig. 6, the shapes of the signal pin 111 and the power pin 121 are the same as those of the signal pin 111 and the power pin 121 of the golden finger connector 100 shown in the middle of fig. 3, and therefore, the description thereof is omitted.

The gold finger connector 100 shown in fig. 8 is different from the gold finger connector 100 shown in fig. 3 in the number and arrangement of the signal pins 111. The signal pins 111 provided by this embodiment are arranged in two rows along the second direction, and the signal pins 111 in the first row of signal pins 113 and the signal pins 111 in the second row of signal pins 112 are arranged in a staggered manner. The first row of signal pins 113 is a row of signal pins 111 near the insertion end of the substrate 130; the second row of signal pins 112 is a row of signal pins 111 away from the insertion end of the substrate 130.

Taking the example of 7 signal pins 111 in fig. 8 as an example, the 7 signal pins 111 are signal 1, signal 2, signal 3, signal 4, signal 5, signal 6, and signal 7, respectively. Wherein, the signal 1, the signal 2, the signal 3, and the signal 4 are arranged as the first row signal pin 113;

signals

6 and 7 are arranged in a second row of signal pins 112. When the

signals

5, 6 and 7 are arranged, they are arranged in a staggered manner with respect to the

signals

1, 2, 3 and 4, that is, when the above staggered arrangement is adopted, the signal pins 111 in the first row of signal pins 113 and the signal pins 111 in the second row of signal pins 112 are in different columns in the second direction, so that the two rows of signal pins 111 form a trapezoidal arrangement shape.

Through adopting signal pin 111 the mode of staggering each other of going up and down, the reed that female end connector corresponds can carry out single or double row and arrange for the reed is denser, and this kind of mode also can reach the space that reduces signal pin 111, has increased power pin 121's space, has brought the promotion of big discharge capacity.

The gold finger connector shown in fig. 9 is a modified structure of the gold finger connector shown in fig. 8. The signal pins 111 provided by this embodiment are arranged in two rows along the second direction, and the signal pins 111 in the first row of signal pins 113 and the signal pins 111 in the second row of signal pins 112 are arranged in a staggered manner. The first row of signal pins 113 is a row of signal pins 111 near the insertion end of the substrate 130; the second row of signal pins 112 is a row of signal pins 111 away from the insertion end of the substrate 130.

Taking the example of 7 signal pins 111 in fig. 9 as an example, the 7 signal pins 111 are signal 1, signal 2, signal 3, signal 4, signal 5, signal 6, and signal 7, respectively. Wherein, the signal 1, the signal 2, and the signal 3 are arranged as a first row signal pin 113; signal 4, signal 5, signal 6, and signal 7 are arranged in a second row of signal pins 112. When the

signals

As can be seen from the specific examples of the above drawings, in the gold finger connector 100 according to the embodiment of the present application, the signal pins 111 are arranged in at least two rows by using an arrangement manner that the signal pins 111 are arranged in rows along the first direction and arranged in columns along the second direction. The space area occupied by the signal pins 111 in the first direction is reduced, so that the width of the power pins 121 in the first direction can be increased, the number of contact reeds of the female end connector corresponding to the power pins 121 can be increased, the resistance of the power pins and the heat consumption caused by through-current are reduced, and the reliability of the golden finger connector 100 and the female end connector in working is improved.

In addition, when a plurality of rows of signal pins 111 are used, one of the signal pins 111 may be used as a pin for timing control. For example, taking the gold finger connector shown in fig. 5 as an example, the signal 1 may be used as a timing control pin, and when the signal 1 is turned on, other signals are controlled, and it is considered that the current gold finger connector is completely contacted with the female terminal connector, and communication can be performed. On the contrary, the current state is considered to be the off state, the signals are not communicated, even if part of the signals are already contacted, the signal time sequence control is carried out in this way, and the contact time sequence disorder is avoided. Of course, other signal pins 111 may be used as the timing control pins, and it is only necessary to ensure that the matching position of the gold finger connector 100 and the female connector can be reliably determined.

Referring to fig. 10 and 11, fig. 10 shows a female end connector provided in an embodiment of the present application, and fig. 11 shows a side view of the female end connector. The female connector 200 provided by the embodiment of the application is connected with the gold finger connector in a matching manner.

The female connector 200 includes a body 210, the body 210 serves as a supporting structure, and the body 210 is provided with a slot 220. When mated with a gold finger connector, the insertion end of the gold finger connector is inserted into the slot 220. The female end connector 200 further includes a power reed set and a signal reed set disposed on the body 210, wherein the power reed set and the signal reed set are arranged side by side along a first direction. The first direction is perpendicular to the plugging direction of the female end connector.

The power reed group comprises a plurality of pairs of power reeds 240, two power reeds 240 in each pair of power reeds 240 are respectively arranged on two opposite inner walls of the slot 220, the plurality of pairs of power reeds 240 are arranged in the slot 220 side by side along a first direction, and the first direction is perpendicular to the plugging direction of the female end connector. The signal reed group comprises a plurality of pairs of signal reeds 230, two signal reeds 230 in each pair of signal reeds 230 are respectively arranged on two opposite inner walls of the slot, the plurality of pairs of signal reeds 230 are arranged in at least two rows along a plugging direction perpendicular to the female end connector, and signal pins in the same row are arranged side by side along the first direction. When the golden finger connector is inserted into the socket 220, the power strip 240 may be electrically connected to a power pin, and the signal strip 230 may be connected to a signal pin. The female connector 200 will be described in connection with the gold finger connector description.

When the signal pins are arranged in an array, the number of the signal reeds 230 in each corresponding row of signal reeds 230 is the same, and a plurality of pairs of signal reeds 230 are arranged in an array.

Referring to fig. 3 and 4, when the signal pins may be arranged in two, three, four, etc. rows, the corresponding number of rows of the signal strip 230 is also multiple, for example, the signal strip 230 may be arranged in two, three, four, etc. different rows, and the number of rows of the signal strip 230 and the number of rows of the signal pins correspond.

When the structure is adopted, the signal reeds 230 are changed into a plurality of rows, so that the saved space can be distributed to the power reeds 240, and the description in the golden finger connector is combined, so that when the width of the power pin of the golden finger connector is increased, the Rpcb is reduced, the through-current loss is reduced, and the through-current capacity is improved; when the number of power reeds 240 in female connector 200 is increased, the Rc contact will be reduced, its current loss will be reduced, and its current capacity will be increased. In addition, after the number of the power reeds 240 is increased, the reliable connection between the two and the requirement on electrical performance can be ensured only by adopting a single contact point mode to connect with the power pins.

In addition, for the insertion and extraction force of the golden finger connector and the female connector 200, the insertion and extraction force satisfies the positive force formula:

where D is the thickness of power supply reed 240, W is the width of power supply reed 240, and L is the length of power supply reed 240. The magnitude of the positive force is proportional to the thickness and width of power spring 240 and inversely proportional to the length of power spring 240. When the signal pins are changed into multiple rows, the power pins and the power reeds 240 can be connected in a single-point contact manner, the forward force of the power pins can be reduced, and the plugging problem of the golden finger connector can be improved.

In addition, when a plurality of pairs of signal reeds are arranged in two rows, the logarithm of the signal reeds in the first row of signal reeds and the logarithm of the signal reeds in the second row of signal reeds can be different. The following describes the arrangement of the signal reeds by taking the signal pins as an example.

When the golden finger connector adopts the structure shown in fig. 5, a plurality of pairs of signal reeds 230 are correspondingly arranged in two rows along the second direction; wherein the number of signal reeds 230 in the first row of signal reeds 230 is less than the number of signal reeds 230 in the second row of signal reeds 230; first row of signal springs 230 is a row of signal springs 230 near the insertion end of body 210; the second row of signal springs 230 is a row of signal springs 230 remote from the inserted end of the body 210. As an alternative, at least one signal reed 230 of the first row of signal reeds 230 is individually in a column.

When the golden finger connector adopts the structure shown in fig. 6, correspondingly, a plurality of pairs of signal reeds 230 are arranged in two rows along the second direction; wherein the number of signal reeds 230 in the first row of signal reeds 230 is greater than the number of signal reeds 230 in the second row of signal reeds 230; first row of signal springs 230 is a row of signal springs 230 near the insertion end of body 210; the second row of signal springs 230 is a row of signal springs 230 remote from the inserted end of the body 210. As an alternative, at least one signal reed 230 of the second signal reeds 230 is individually arranged in a column.

When the golden finger connector adopts the structure shown in fig. 7, correspondingly, a plurality of pairs of signal reeds 230 are arranged in two rows along the second direction; wherein the number of signal reeds 230 in the first row of signal reeds 230 is greater than the number of signal reeds 230 in the second row of signal reeds 230; first row of signal springs 230 is a row of signal springs 230 near the insertion end of body 210; the second row of signal springs 230 is a row of signal springs 230 remote from the inserted end of the body 210. As an alternative, at least one of the first signal reed 230 or the second signal reed 230 is individually aligned.

When the golden finger connector adopts the structure as shown in fig. 8 or fig. 9, the signal reeds 230 in the first row of signal reeds 230 are correspondingly arranged in a staggered manner with respect to the signal reeds 230 in the second row of signal reeds 230. The specific arrangement may refer to the arrangement of the signal pins on the gold finger connector, and the arrangement of the signal reeds 230 corresponds to the arrangement of the signal pins, which is not described in detail herein.

As can be seen from the above description, when the female connector 200 adopts the above layout, the signal reeds 230 can also adopt different layout ways, which improves the flexibility of the layout of the signal reeds 230. In addition, by employing at least two rows of signal reeds 230, the number of power reeds 240 can be increased. When the number of power reeds 240 in female connector 200 is increased, the Rc contact will be reduced, its current loss will be reduced, and its current capacity will be increased. In addition, after the number of the power reeds 240 is increased, the reliable connection between the two and the requirement on electrical performance can be ensured only by adopting a single contact point mode to connect with the power pins.

The embodiment of the application also provides communication equipment which comprises the golden finger connector and the golden finger connector, wherein the two golden finger connectors are connected in a plugging mode.

With golden finger connector and female end connector contrast among the prior art can discover, when adopting golden finger connector and female end connector that this application embodiment provided, the effect that it brought mainly has: under the condition that the width of the golden finger connector is the same, 10-30% of power improvement can be brought. With the reduction of the size of the golden finger connector, the signal + power output can be unchanged. Under the condition that the width of the golden finger connector is the same, the end-to-end cost of the golden finger connector and the female end connector is lower, and the amplitude is reduced by 1X percent. Under the condition of the width of the golden finger connector and the power supply pin, the signal transmission density can be improved by 100%. In addition, the time sequence control of signals can be realized through an array arrangement mode.

To achieve the above effect, a narrow power supply with a power of 3000W and a width of 50mm is used as an example for simulation. The golden finger connector provided by the embodiment of the application is compared with the golden finger connector in the prior art. Referring to table 1 below, wherein, scheme 1 is a golden finger connector and female connector matching scheme provided in the examples of the present application. Scheme 2 is the scheme of the matching of a gold finger connector and a female end connector by increasing the thickness of a power supply pin in the technology. Scheme 3 is the scheme that in the prior art, a power supply reed is matched with the golden finger connector through double contacts. Scheme 4 is the scheme that double-deck reed and golden finger connector cooperation are adopted in the female end connector among the prior art.

TABLE 1

Scheme(s)	Occupying the depth of the plate	Number of power supply pins	Number of signal pins	Switched current
					Scheme
1	7mm	7 pairs of	8 pairs of	250A
					Scheme
2	7mm	6 pairs of	8 pairs of	200A
					Scheme
3	10mm	6 pairs of	8 pairs of	220A
					Scheme
4	7mm	6 pairs of	8 pairs of	215A

As can be seen from table 1, in the golden finger connector and the female terminal connector provided in the embodiments of the present application, 7 pairs of reeds may be arranged, which is more redundant to the power reeds of other schemes. The current transferred by the power supply reed and the power supply pin provided by the embodiment of the application is 250A, which is larger than the current transferred by other power supply reeds and the power supply pin.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A gold finger connector, comprising: the circuit board comprises a substrate, a power pin group and a signal pin group, wherein the power pin group and the signal pin group are arranged on the substrate;

the power pin group and the signal pin group are arranged side by side along a first direction, and the first direction is perpendicular to the plugging direction of the golden finger connector;

the power supply pin group comprises a plurality of power supply pins which are arranged side by side along the first direction;

the signal pin group comprises a plurality of signal pins, the plurality of signal pins are arranged in at least two rows along a second direction perpendicular to the first direction, and the signal pins in the same row are arranged side by side along the first direction.

2. The gold finger connector of claim 1, wherein the number of signal pins in each row of signal pins is the same; and the plurality of signal pins are arranged in an array.

3. The gold finger connector of claim 1, wherein said plurality of signal pins are arranged in two rows of signal pins; wherein the content of the first and second substances,

the number of the signal pins in the first row of the two rows of the signal pins is not equal to the number of the signal pins in the second row of the two rows of the signal pins.

4. The gold finger connector of claim 3, wherein at least one of said first row of signal pins or said second row of signal pins are individually in columns.

5. The gold finger connector of claim 4 wherein said individual columns of signal pins are of equal size to the remaining signal pins.

6. The gold finger connector of claim 4, wherein the length of said individual columns of signal pins in said second direction is greater than the length of the remaining signal pins of said plurality of signal pins in said second direction.

7. The gold finger connector of claim 3, wherein the signal pins in the first row of signal pins are offset from the signal pins in the second row of signal pins.

8. A box end connector, comprising:

a body having a slot;

the power reed group comprises a plurality of pairs of power reeds, two power reeds in each pair of power reeds are respectively arranged on two opposite inner walls of the slot, the plurality of pairs of power reeds are arranged in the slot side by side along a first direction, and the first direction is perpendicular to the plugging direction of the female end connector;

the signal reed group comprises a plurality of pairs of signal reeds, two signal reeds in each pair of signal reeds are respectively arranged on two opposite inner walls of the slot, the plurality of pairs of signal reeds are arranged into at least two rows along the direction perpendicular to the plugging and unplugging direction of the female end connector, and signal pins in the same row are arranged side by side along the first direction;

wherein the power reed set and the signal reed set are arranged side by side along the first direction.

9. The female connector of claim 8, wherein the signal reeds in each row have the same number of pairs and the pairs are arranged in an array.

10. The female connector of claim 9, wherein said plurality of pairs of signal reeds are arranged in two rows; wherein the content of the first and second substances,

the logarithm of the signal reeds in the first row of signal reeds is not equal to the logarithm of the signal reeds in the second row of signal reeds, and the first row of signal reeds is closer to the insertion end of the body relative to the second row of signal reeds.

11. The female connector of claim 9 or 10, wherein at least one pair of signal reeds in said first row of signal reeds and said second row of signal reeds are individually in a column.

12. The female connector of claim 9 or 10, wherein the signal leaves in said first row of signal leaves are offset from the signal leaves in said second row of signal leaves.

13. A communication device, comprising the golden finger connector as claimed in any one of claims 1 to 7 and the female connector as claimed in any one of claims 8 to 12, wherein the golden finger connector is connected with the female connector in a plugging manner.