Circuit board device and insertion detection circuit

Abstract

The present invention discloses a circuit board device and a plug-in detection circuit. The circuit board device includes a first circuit board and a second circuit board. The first circuit board is provided with a control module and a gold finger socket; the second circuit board is provided with a gold finger plug that cooperates with the gold finger socket, and the second circuit board is plugged into the gold finger socket via its gold finger plug; the gold finger socket includes a first pin group and a second pin group, a first signal end of the control module is electrically connected to one of the pins of the first pin group, and a second signal end of the control module is electrically connected to one of the pins of the second pin group, and the first signal end and the second signal end are respectively connected to a power supply via a pull-up load. Only when the gold finger plug and the gold finger socket are aligned and plugged in, the first signal end and the second signal end are respectively in a first preset level state and a second preset level state. The technical solution of the present invention realizes detection of the plug-in state of the gold finger socket and the gold finger plug, effectively ensuring the safety of the circuit board device.

Description

Technical Field

[0001] The present invention relates to the technical field of gold finger circuit boards, and in particular to a circuit board device and a plug detection circuit. Background Art

[0002] At present, as the signal rate of circuit boards is getting higher and higher, the number of PINs (including signal PINs, power PINs, etc.) of the gold finger plugs of the circuit boards is correspondingly increasing, and the spacing between adjacent PINs of the gold finger plugs is getting smaller and smaller. As a result, when the gold finger socket of one circuit board is plugged into the gold finger plug of another circuit board, it is easy to cause the adjacent PINs to short-circuit due to misalignment of the gold finger plug insertion. When the circuit board is powered on in this situation, the short-circuited signal PINs will cause abnormal communication, and the short-circuited power PINs will very likely burn out the power supply or circuit board, resulting in serious consequences.

[0003] Therefore, how to ensure the safe and normal power-on operation of the circuit board using the gold finger socket is an urgent problem to be solved. Summary of the Invention

[0004] The present invention provides a circuit board device and a plug detection circuit, aiming to solve the problems in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the circuit board device proposed in the present invention includes:

[0006] A first circuit board is provided with a control module and a gold finger socket;

[0007] a second circuit board, wherein the second circuit board is provided with a gold finger plug that matches the gold finger socket, and the second circuit board is plugged into the gold finger socket through the gold finger plug;

[0008] The gold finger socket includes a first pin group and a second pin group, the first signal end of the control module is electrically connected to one of the pins of the first pin group, and the second signal end of the control module is electrically connected to one of the pins of the second pin group, and the first signal end and the second signal end are respectively connected to a power supply via a pull-up load; only when the gold finger plug is aligned with the gold finger socket, the first signal end and the second signal end are respectively in a first preset level state and a second preset level state.

[0009] The first pin group includes a first detection pin and a first ground pin that are sequentially adjacent to each other along a first direction, the second pin group includes a second ground pin and a second detection pin that are sequentially adjacent to each other along the first direction, the first signal end is electrically connected to the first detection pin, and the second signal end is electrically connected to the second detection pin;

[0010] The gold finger plug includes a third ground pin, a first empty pin, a first interconnection pin, and a second interconnection pin, which are sequentially and adjacently distributed along the first direction, and the first interconnection pin is connected to the second interconnection pin;

[0011] When the gold finger plug is aligned and plugged into the gold finger socket, the first detection pin is connected to the first empty pin, the first ground pin is connected to the first interconnection pin, and the second detection pin is connected to the second interconnection pin.

[0012] Wherein, the two pins adjacent to the second interconnection pin in the gold finger plug are both empty pins; or,

[0013] The two pins adjacent to the second interconnection pin in the gold finger plug are both ground pins; or,

[0014] Two pins adjacent to the second interconnection pin in the gold finger plug are a blank pin and a ground pin respectively.

[0015] The first pin group is adjacent to one end of the gold finger socket, and the second pin group is adjacent to the other end of the gold finger socket.

[0016] Wherein, the control module further has a communication terminal for signal transmission with a host computer; and / or,

[0017] The circuit board device further comprises a switch module for controlling power on and off of the gold finger socket, and the control module is electrically connected to the switch module.

[0018] The present invention further proposes a plug-in detection circuit, including a control module and a gold finger socket for plugging a gold finger circuit board, the gold finger socket including a first pin group and a second pin group, the first signal end of the control module electrically connected to one of the pins of the first pin group, the second signal end of the control module electrically connected to one of the pins of the second pin group, the first signal end and the second signal end are respectively connected to a power supply via a pull-up load; only when the gold finger plug is plugged into the gold finger socket, the first signal end and the second signal end are respectively in a first preset level state and a second preset level state.

[0019] The first pin group includes a first detection pin and a first ground pin that are sequentially adjacent to each other along a first direction, the second pin group includes a second ground pin and a second detection pin that are sequentially adjacent to each other along the first direction, the first signal end is electrically connected to the first detection pin, and the second signal end is electrically connected to the second detection pin;

[0020] The gold finger plug of the gold finger circuit board includes a third ground pin, a first empty pin, a first interconnection pin, and a second interconnection pin, which are distributed adjacent to each other in sequence along the first direction, and the first interconnection pin is connected to the second interconnection pin; when the gold finger plug is aligned and plugged into the gold finger socket, the first detection pin is connected to the first empty pin, the first ground pin is connected to the first interconnection pin, and the second detection pin is connected to the second interconnection pin.

[0021] The first pin group is adjacent to one end of the gold finger socket, and the second pin group is adjacent to the other end of the gold finger socket.

[0022] The control module further includes a communication terminal for transmitting signals with a host computer.

[0023] The plug detection circuit further includes a switch module for controlling the power on and off of the gold finger socket, and the control module is electrically connected to the switch module.

[0024] The technical solution of the present invention adopts the method of adding a control module to the first circuit board. The control module is electrically connected to a pin of the first pin group of the gold finger socket on the first circuit board by connecting to a first signal terminal of the power supply via a pull-up resistor, and is electrically connected to a pin of the second pin group of the gold finger socket on the first circuit board by connecting to a second signal terminal of the power supply via a pull-up resistor. When the gold finger plug of the second circuit board is plugged into the gold finger socket of the first circuit board, the control module can determine whether the gold finger plug and the gold finger socket are in an aligned plugged state or in a plug-deviation misalignment state based on the level states of the first signal terminal and the second signal terminal. In this way, the gold finger socket can be powered on only when it is confirmed that the gold finger plug and the gold finger socket are in an aligned plugged state. When it is confirmed that the gold finger plug and the gold finger socket are in a plug-deviation misalignment state, the gold finger socket is not powered on, thereby effectively ensuring the safety of the first circuit board and the second circuit board of the circuit board device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a circuit board device in one embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of a circuit board device in one embodiment of the present invention;

[0027] Figure 3 is a schematic structural diagram of a circuit board device in one embodiment of the present invention;

[0028] Figure 4 is a schematic structural diagram of a circuit board device in one embodiment of the present invention;

[0029] Figure 5is a schematic structural diagram of a circuit board device in one embodiment of the present invention;

[0030] Figure 6 FIG. 4 is a schematic structural diagram of a circuit board device in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0034] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] The present invention provides a circuit board device.

[0036] See Figure 1 , Figure 1 FIG. 1 is a schematic structural diagram of a circuit board device in an embodiment of the present invention.

[0037] In this embodiment, the circuit board assembly includes a first circuit board 10 and a second circuit board 20. The first circuit board 10 is provided with a control module 11 and a gold finger socket 12, and the second circuit board 20 is provided with a gold finger plug 21 that mates with the gold finger socket 12. The second circuit board 20 is plugged into the gold finger socket 12 via its gold finger plug 21. For example, the first circuit board 10 can be a server control motherboard, a data motherboard, etc.; the second circuit board 20 can be a solid-state drive circuit board, a memory module, an external electronic device circuit board, etc.

[0038] The gold finger socket 12 includes a first pin group 121 and a second pin group 122. The first pin group 121 may include one pin or multiple pins, and the second pin group 122 may include one pin or multiple pins. The first signal terminal X1 of the control module 11 is electrically connected to one pin of the first pin group 121, and the second signal terminal X2 of the control module 11 is electrically connected to one pin of the second pin group 122. The first signal terminal X1 and the second signal terminal X2 are each connected to the power supply VCC via a pull-up load R (e.g., a resistor); that is, the signal at the first signal terminal X1 is the signal of the pin in the first pin group 121 to which it is electrically connected, and the signal at the second signal terminal X2 is the signal of the pin in the second pin group 122 to which it is electrically connected.

[0039] Only when the gold finger plug 21 is aligned and plugged into the gold finger socket 12, the first signal terminal X1 and the second signal terminal X2 are respectively in the first preset level state and the second preset level state. When the gold finger plug 21 is aligned and plugged into the gold finger socket 12, the pin electrically connected to the first signal terminal X1 is connected to the corresponding pin of the gold finger plug 21, and the pin electrically connected to the second signal terminal X2 is also connected to the corresponding pin of the gold finger plug 21. At this time, the pin electrically connected to the first signal terminal X1 is in the first preset level state, and the pin electrically connected to the second signal terminal X2 is in the second preset level state. When the gold finger plug 21 and the gold finger socket 12 are misaligned during insertion, the pin electrically connected to the first signal terminal X1 and the pin electrically connected to the second signal terminal X2 are both short-circuited with the pins that are not their corresponding pins. At this time, the first signal terminal X1 and the second signal terminal X2 are not in the first preset level state and the second preset level state respectively; it is possible that the first signal terminal X1 and the second signal terminal X2 are both in the second preset level state, or it is possible that the first signal terminal X1 and the second signal terminal X2 are in the second preset level state and the first preset level state respectively. For example, the first preset level state is a high level state (1), and the second preset level state is a low level state (0).

[0040] When the control module 11 detects that the level states of the first signal terminal X1 and the second signal terminal X2 are respectively the first preset level state and the second preset level state, the control module 11 determines that the gold finger plug 21 of the second circuit board 20 and the gold finger socket 12 of the first circuit board 10 are aligned and there is no misalignment in the plugging that causes a short circuit between adjacent pins. At this time, the control module 11 can control the gold finger socket 12 of the first circuit board 10 to power on or feedback the plugging status of the gold finger plug 21 and the gold finger socket 12 to the upper computer.

[0041] When the control module 11 detects that the level states of the first signal terminal X1 and the second signal terminal X2 are not the first preset level state and the second preset level state respectively, the control module 11 determines that the gold finger plug 21 of the second circuit board 20 and the gold finger socket 12 of the first circuit board 10 are not plugged in and aligned, that is, there is a plug-in deviation and misalignment resulting in a short circuit of adjacent pins. At this time, the control module 11 controls the gold finger socket 12 of the first circuit board 10 not to power on or to feedback the plug-in status of the gold finger plug 21 and the gold finger socket 12 to the upper computer to ensure the safety of the circuit board device.

[0042] When the control module 11 detects that the level states of the first signal terminal X1 and the second signal terminal X2 are both in the high level state (1), the control module 11 can determine that no gold finger plug 21 is inserted into the gold finger socket 12.

[0043] In this embodiment, a circuit board device is provided with a control module 11 added to a first circuit board 10. The control module 11 is electrically connected to a pin of a first pin group 121 of a gold finger socket 12 on the first circuit board 10 via a first signal terminal X1 connected to a power supply VCC via a pull-up resistor, and is electrically connected to a pin of a second pin group 122 of the gold finger socket 12 on the first circuit board 10 via a second signal terminal X2 connected to the power supply VCC via a pull-up resistor. When a gold finger plug 21 of a second circuit board 20 is plugged into a gold finger socket 12 of the first circuit board 10, the control module 11 can determine whether the gold finger plug 21 and the gold finger socket 12 are aligned or misaligned based on the electrical levels of the first signal terminal X1 and the second signal terminal X2. In this manner, the gold finger socket 12 is powered only when the alignment is confirmed. If the misalignment is confirmed, the gold finger socket 12 is not powered, effectively ensuring the safety of the first circuit board 10 and the second circuit board 20 of the circuit board device.

[0044] See Figure 2In this embodiment, the first pin group 121 includes a first detection pin J1 and a first ground pin D1, which are arranged adjacent to each other in the first direction. The second pin group 122 includes a second ground pin D2 and a second detection pin J2, which are arranged adjacent to each other in the first direction. The first signal terminal X1 is electrically connected to the first detection pin J1, and the second signal terminal X2 is electrically connected to the second detection pin J2. The gold finger plug 21 includes a third ground pin D3, a first idle pin K1, a first interconnection pin H1, and a second interconnection pin H2, which are arranged adjacent to each other in the first direction. The first interconnection pin H1 is connected to the second interconnection pin H2. In this embodiment, the first direction is shown as downward. However, in other embodiments, the first direction can also be upward.

[0045] When the gold finger plug 21 is aligned with the gold finger socket 12, the first detection pin J1 is connected to the first empty pin K1, the first ground pin D1 is connected to the first interconnect pin H1, and the second detection pin J2 is connected to the second interconnect pin H2. At this time, the first detection pin J1 is connected to the first empty pin K1 and is in a suspended state, so the first signal terminal X1 is in a high level state (1) (first preset level state); the second detection pin J2 is connected to the second interconnect pin H2, and the first interconnect pin H1 connected to the second interconnect pin H2 is also connected to the first ground pin D1, so the second detection pin J2 is in a grounded state, and the second signal terminal X2 is in a low level state (0) (second preset level state). Therefore, when the control module 11 detects that the first signal terminal X1 is in a high level state (1) and the second signal terminal X2 is in a low level state (0), it can be determined that the gold finger plug 21 and the gold finger socket 12 are normally aligned and there is no deviation or misalignment.

[0046] When the gold finger plug 21 and the gold finger socket 12 are misaligned: 1. When the gold finger plug 21 is deviated downward by one pin, the first detection pin J1 is short-circuited with the third ground pin D3, the first detection pin J1 is in the ground state, and the first signal terminal X1 is in the low level state (0); 2. When the gold finger plug 21 is deviated upward by one pin, the first detection pin J1 is short-circuited with the first interconnection pin H1, the second interconnection pin H2 is short-circuited with the second ground pin D2, the first detection pin J1 is still in the ground state, and the first signal terminal X1 is in the low level state (0); 3. When the gold finger plug 21 is deviated downward by one pin, the first detection pin J1 is short-circuited with the first interconnection pin H1, the second interconnection pin H2 is short-circuited with the second ground pin D2, the first detection pin J1 is still in the ground state, and the first signal terminal X1 is in the low level state (0); 4. When the gold finger plug 21 is deviated by half a pin, at this time, the first detection pin J1 is short-circuited with the first idle pin K1 and the third ground pin D3 at the same time, the first detection pin J1 is still in the ground state, and the first signal terminal X1 is in the low level state (0); 5. When the gold finger plug 21 is deviated by half a pin upward, at this time, the first detection pin J1 is short-circuited with the first idle pin K1 and the first interconnection pin H1 at the same time, and the second interconnection pin H2 is short-circuited with the second detection pin J2 and the second ground pin D2 at the same time, the first detection pin J1 and the second detection pin J2 are both in the ground state, and the first signal terminal X1 and the second signal terminal X2 are both in the low level state (0). Therefore, when the control module 11 detects that the first signal terminal X1 is in the low level state (0), it can be determined that the gold finger plug 21 and the gold finger socket 12 have a plug-in deviation and misalignment.

[0047] See Figure 3 In this embodiment, the two pins adjacent to the second interconnection pin H2 in the gold finger plug 21 are both empty pins NC.

[0048] In this embodiment, when the gold finger plug 21 and the gold finger socket 12 are misaligned during insertion: 1. When the gold finger plug 21 is deviated downward by one pin, the first detection pin J1 is short-circuited with the third ground pin D3, the first detection pin J1 is in a grounding state, the first signal terminal X1 is in a low level state (0), the second detection pin J2 is short-circuited with the empty pin NC, is in a floating state, and the second signal terminal X2 is in a high level state (1); 2. When the gold finger plug 21 is deviated upward by one pin, the first detection pin J1 is short-circuited with the first interconnection pin H1, the second interconnection pin H2 is short-circuited with the second ground pin D2, the first detection pin J1 is in a grounding state, the first signal terminal X1 is in a low level state (0), the second detection pin J2 is short-circuited with the empty pin NC, is in a floating state, and the second signal terminal X2 is in a high level state (1); 3. When the gold finger plug 21 is deviated upward by one pin, the first detection pin J1 is short-circuited with the first interconnection pin H1, the second interconnection pin H2 is short-circuited with the second ground pin D2, the first detection pin J1 is in a grounding state, the first signal terminal X1 is in a low level state (0), the second detection pin J2 is short-circuited with the empty pin NC, is in a floating state, and the second signal terminal X2 is in a high level state (1); It is deviated downward by half a pin. At this time, the first detection pin J1 is short-circuited with the first empty pin K1 and the third ground pin D3 at the same time. The first detection pin J1 is still in the ground state. The first signal terminal X1 is in the low level state (0). The second detection pin J2 is short-circuited with the second interconnection pin H2 and the empty pin NC at the same time. The first interconnection pin H1 is short-circuited with the first ground pin D1. The second detection pin J2 is in the ground state. The second signal terminal X2 is in the low level state (0). 4. When the gold finger plug 21 is deviated upward by half a pin, the first detection pin J1 is short-circuited with the first empty pin K1 and the first interconnection pin H1 at the same time. The second interconnection pin H2 is short-circuited with the second detection pin J2 and the second ground pin D2 at the same time. The first detection pin J1 and the second detection pin J2 are both in the ground state. The first signal terminal X1 and the second signal terminal X2 are both in the low level state (0).

[0049] See Figure 4 In this embodiment, the two pins adjacent to the second interconnection pin H2 in the gold finger plug 21 are both ground pins.

[0050] In this embodiment, when the gold finger plug 21 and the gold finger socket 12 are misaligned during insertion: 1. When the gold finger plug 21 is deviated downward by one pin, the first detection pin J1 is short-circuited with the third ground pin D3, the first detection pin J1 is in a grounded state, the first signal terminal X1 is in a low level state (0), the second detection pin J2 is short-circuited with the ground pin, in a grounded state, and the second signal terminal X2 is in a low level state (0); 2. When the gold finger plug 21 is deviated upward by one pin, the first detection pin J1 is short-circuited with the first interconnection pin H1, the second interconnection pin H2 is short-circuited with the second ground pin D2, the first detection pin J1 is in a grounded state, the first signal terminal X1 is in a low level state (0), the second detection pin J2 is short-circuited with the ground pin, in a grounded state, and the second signal terminal X2 is in a low level state (0); 3. When the gold finger plug 21 is When the gold finger plug 21 deviates half a pin downward, at this time, the first detection pin J1 is short-circuited with the first idle pin K1 and the third ground pin D3 at the same time, the first detection pin J1 is still in the ground state, the first signal terminal X1 is in the low level state (0), the second detection pin J2 is short-circuited with the second interconnection pin H2 and the ground pin at the same time, the first interconnection pin H1 is short-circuited with the first ground pin D1, the second detection pin J2 is in the ground state, and the second signal terminal X2 is in the low level state (0); 4. When the gold finger plug 21 deviates half a pin upward, at this time, the first detection pin J1 is short-circuited with the first idle pin K1 and the first interconnection pin H1 at the same time, the second interconnection pin H2 is short-circuited with the second detection pin J2 and the second ground pin D2 at the same time, the first detection pin J1 and the second detection pin J2 are both in the ground state, and the first signal terminal X1 and the second signal terminal X2 are both in the low level state (0).

[0051] See Figure 5 In this embodiment, the two pins adjacent to the second interconnect pin H2 in the gold finger plug 21 are a dummy pin NC and a ground pin, respectively. In the figure of this embodiment, the pin above (upwardly adjacent to) the second interconnect pin H2 is a dummy pin NC, and the pin below (downwardly adjacent to) the second interconnect pin H2 is a ground pin.

[0052] In this embodiment, when the gold finger plug 21 and the gold finger socket 12 are misaligned during insertion: 1. When the gold finger plug 21 is deviated downward by one pin, the first detection pin J1 is short-circuited with the third ground pin D3, the first detection pin J1 is in a grounding state, the first signal terminal X1 is in a low level state (0), the second detection pin J2 is short-circuited with the empty pin NC, is in a floating state, and the second signal terminal X2 is in a high level state (1); 2. When the gold finger plug 21 is deviated upward by one pin, the first detection pin J1 is short-circuited with the first interconnection pin H1, the second interconnection pin H2 is short-circuited with the second ground pin D2, the first detection pin J1 is in a grounding state, the first signal terminal X1 is in a low level state (0), the second detection pin J2 is short-circuited with the ground pin, is in a grounding state, and the second signal terminal X2 is in a low level state (0); 3. When the gold finger plug 21 is When the gold finger plug 21 deviates half a pin downward, at this time, the first detection pin J1 is short-circuited with the first empty pin K1 and the third ground pin D3 at the same time, the first detection pin J1 is still in the ground state, the first signal terminal X1 is in the low level state (0), the second detection pin J2 is short-circuited with the second interconnection pin H2 and the empty pin NC at the same time, the first interconnection pin H1 is short-circuited with the first ground pin D1, the second detection pin J2 is in the ground state, and the second signal terminal X2 is in the low level state (0); 4. When the gold finger plug 21 deviates half a pin upward, at this time, the first detection pin J1 is short-circuited with the first empty pin K1 and the first interconnection pin H1 at the same time, the second interconnection pin H2 is short-circuited with the second detection pin J2 and the second ground pin D2 at the same time, the first detection pin J1 and the second detection pin J2 are both in the ground state, and the first signal terminal X1 and the second signal terminal X2 are both in the low level state (0).

[0053] exist Figures 3 to 5 In the embodiment, the control module 11 detects the level status of the first signal terminal X1 and the second signal terminal X2, and can determine which specific situation or situations the gold finger plug 21 has misaligned according to the level status of the first signal terminal X1 and the second signal terminal X2.

[0054] Reference Figures 3 to 5 In some embodiments, the first pin group 121 is adjacent to one end of the gold finger socket 12, and the second pin group 122 is adjacent to the other end of the gold finger socket 12. By arranging the first pin group 121 and the second pin group 122 adjacent to both ends of the gold finger socket 12, the control module 11 can determine whether both ends of the gold finger plug 21 are inserted into the gold finger socket 12 by detecting the first signal terminal X1 and the second signal terminal X2, and can also more conveniently define the signal pins and power pins in the middle portion of the gold finger socket 12 and the gold finger plug 21.

[0055] In some embodiments, the control module 11 further includes a communication terminal G for signal transmission with a host computer. The control module 11 can feed back the detected level status of the first signal terminal X1 and the second signal terminal X2 to the host computer via the communication terminal G, so that the host computer can know the plugging status of the gold finger socket 12 and the gold finger plug 21; alternatively, the host computer can send a detection signal to the control module 11, causing the control module 11 to detect the level status of the first signal terminal X1 and the second signal terminal X2 and provide feedback.

[0056] See Figure 6 In this embodiment, the circuit board device also includes a switch module 13 for controlling the power on and off of the gold finger socket 12, and the control module 11 is electrically connected to the switch module 13; the switch module 13 can be connected in series to the power supply line of the power supply VCC pin of the gold finger socket 12.

[0057] In this embodiment, when the control module 11 determines that the plugging state of the golden finger socket 12 and the golden finger plug 21 is the aligned plugging state based on the level state of the first signal terminal X1 and the second signal terminal X2, the control module 11 controls the switch module 13 to be turned on, so that the golden finger socket 12 is powered on and operates; and when the control module 11 determines that the plugging state of the golden finger socket 12 and the golden finger plug 21 is the plugging deviation and misalignment state based on the level state of the first signal terminal X1 and the second signal terminal X2, the control module 11 controls the switch module 13 to be turned off, so that the golden finger socket 12 is powered off and does not operate.

[0058] In this embodiment, the control module 11 determines the plug-in status of the gold finger socket 12 and the gold finger plug 21 based on the level status of the first signal terminal X1 and the second signal terminal X2, and controls the on and off of the switch module 13 according to the plug-in status, thereby realizing automatic control of the power on and off of the gold finger socket 12, effectively protecting the safety of the first circuit board 10 and the second circuit board 20 of the circuit board device.

[0059] The present invention further proposes a plug-in detection circuit, including a control module and a gold finger socket for plugging a gold finger circuit board, the gold finger socket including a first pin group and a second pin group, the first signal end of the control module being electrically connected to one of the pins of the first pin group, the second signal end of the control module being electrically connected to one of the pins of the second pin group, the first signal end and the second signal end being respectively connected to a power supply via a pull-up load; only when a gold finger plug is plugged into the gold finger socket, the first signal end and the second signal end are respectively in a first level state and a second level state.

[0060] The structure of the plug detection circuit of this embodiment is identical to the circuit structure of the first circuit board of the aforementioned embodiment. Its specific structure is referenced in the aforementioned embodiment and will not be further described here. Since this plug detection circuit utilizes the same technical solution as the first circuit board of the aforementioned embodiment, it at least possesses all the beneficial effects of the technical solution of the aforementioned embodiment, and therefore will not be further described here.

[0061] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields, is included in the scope of protection of the present invention.

Claims

1. A circuit board device, characterized in that: include: A first circuit board is provided with a control module and a gold finger socket; a second circuit board, wherein the second circuit board is provided with a gold finger plug that matches the gold finger socket, and the second circuit board is plugged into the gold finger socket through the gold finger plug; The gold finger socket includes a first pin group and a second pin group, a first signal end of the control module is electrically connected to one pin of the first pin group, and a second signal end of the control module is electrically connected to one pin of the second pin group, and the first signal end and the second signal end are respectively connected to a power supply via a pull-up load; only when the gold finger plug is aligned with the gold finger socket, the first signal end and the second signal end are respectively in a first preset level state and a second preset level state; The first pin group includes a first detection pin and a first ground pin sequentially and adjacently distributed along a first direction, the second pin group includes a second ground pin and a second detection pin sequentially and adjacently distributed along the first direction, the first signal end is electrically connected to the first detection pin, and the second signal end is electrically connected to the second detection pin; The gold finger plug includes a third ground pin, a first empty pin, a first interconnection pin, and a second interconnection pin, which are sequentially and adjacently distributed along the first direction, and the first interconnection pin is connected to the second interconnection pin; When the gold finger plug is aligned and plugged into the gold finger socket, the first detection pin is connected to the first empty pin, the first ground pin is connected to the first interconnection pin, and the second detection pin is connected to the second interconnection pin.

2. The circuit board device according to claim 1, wherein: The two pins adjacent to the second interconnection pin in the gold finger plug are both empty pins; or, The two pins adjacent to the second interconnection pin in the gold finger plug are both ground pins; or, Two pins adjacent to the second interconnection pin in the gold finger plug are a blank pin and a ground pin respectively.

3. The circuit board device according to any one of claims 1 to 2, characterized in that The first pin group is adjacent to one end of the gold finger socket, and the second pin group is adjacent to the other end of the gold finger socket.

4. The circuit board device according to any one of claims 1 to 2, characterized in that The control module further comprises a communication terminal for signal transmission with a host computer; and / or, The circuit board device further comprises a switch module for controlling power on and off of the gold finger socket, and the control module is electrically connected to the switch module.

5. A plug detection circuit, characterized in that: The invention comprises a control module and a gold finger socket for receiving a gold finger plug of a gold finger circuit board, the gold finger socket comprising a first pin group and a second pin group, a first signal end of the control module being electrically connected to one pin of the first pin group, a second signal end of the control module being electrically connected to one pin of the second pin group, the first signal end and the second signal end being respectively connected to a power supply via a pull-up load; only when the gold finger plug is aligned with the gold finger socket, the first signal end and the second signal end are respectively in a first preset level state and a second preset level state; The first pin group includes a first detection pin and a first ground pin sequentially and adjacently distributed along a first direction, the second pin group includes a second ground pin and a second detection pin sequentially and adjacently distributed along the first direction, the first signal end is electrically connected to the first detection pin, and the second signal end is electrically connected to the second detection pin; The gold finger plug of the gold finger circuit board includes a third ground pin, a first empty pin, a first interconnection pin, and a second interconnection pin, which are distributed adjacent to each other in sequence along the first direction, and the first interconnection pin is connected to the second interconnection pin; when the gold finger plug is aligned and plugged into the gold finger socket, the first detection pin is connected to the first empty pin, the first ground pin is connected to the first interconnection pin, and the second detection pin is connected to the second interconnection pin.

6. The plug detection circuit according to claim 5, characterized in that: The first pin group is adjacent to one end of the gold finger socket, and the second pin group is adjacent to the other end of the gold finger socket.

7. The plug detection circuit according to claim 5, characterized in that: The control module also has a communication terminal for transmitting signals with a host computer.

8. The plug detection circuit according to claim 5, characterized in that: The plug detection circuit further includes a switch module for controlling the power on and off of the gold finger socket, and the control module is electrically connected to the switch module.

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