CN220821402U - Relay array board card and low-voltage high-speed relay array board card - Google Patents
Relay array board card and low-voltage high-speed relay array board card Download PDFInfo
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- CN220821402U CN220821402U CN202321653181.9U CN202321653181U CN220821402U CN 220821402 U CN220821402 U CN 220821402U CN 202321653181 U CN202321653181 U CN 202321653181U CN 220821402 U CN220821402 U CN 220821402U
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Abstract
The utility model belongs to the technical field of relays, and particularly relates to a relay array board card and a low-voltage high-speed relay array board card, which comprise the following components: a plurality of buses; a plurality of signal channels arranged to intersect the bus; the plurality of relay units are connected in series through a plurality of buses in sequence, each relay unit comprises a plurality of independent relays, and the intersection point of each bus and each signal channel is connected through an independent relay; a plurality of groups of cascading relays are connected in series on the bus between two adjacent relay units; and one end of each bus relay is connected with one bus, the other end of each bus relay is connected with an expansion port, and the expansion port is used for being connected with expansion ports of other relay array board cards. According to the utility model, the flexible switching of the working modes of the relay array board card is realized by the mode that the cascade relay is connected with the bus in series and the mode that the bus relay is connected with the expansion port, and the expansibility of the relay array board card is improved.
Description
Technical Field
The utility model belongs to the technical field of relays, and particularly relates to a relay array board card and a low-voltage high-speed relay array board card.
Background
In an automated test system (Automatic Test Equipment, ATE), limited equipment resources are typically switched to different sites on the product under test, which is accomplished with the aid of a relay matrix card. Along with the enrichment of functions of the automobile electronic products, the number of channels to be tested is increased, and new requirements are also put forward on the relay matrix card.
Most relay matrix cards in the market adopt PCI/PCIe or PXI/PXIe buses, are limited by the number of slots of the PCI/PCIe or PXI/PXIe chassis of the industrial personal computer, have poor expansibility and have high cost. Meanwhile, a traditional electromagnetic relay is used for a common relay matrix card, and the time for attracting and releasing is generally 2-5ms. While testing of automotive electronics may involve thousands of relay switches, meaning that there may be seconds for relay switching during the test, which severely affects the test beat.
In summary, the prior art has the problems of poor expansibility and slow switching rate of the relay matrix card.
Disclosure of utility model
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a relay array board card and a low-voltage high-speed relay matrix board card, which can solve the problems of poor expansibility and slow switching rate of the relay matrix card.
To achieve the above and other related objects, the present utility model provides a relay array board card comprising: a relay array module and a driving circuit module; the relay array module includes: a plurality of buses; a plurality of signal channels, a plurality of said buses and a plurality of said signal channels being arranged crosswise; the relay units are sequentially connected in series through a plurality of buses, each relay unit comprises a plurality of independent relays, and the intersection point of each bus and each signal channel is connected through one independent relay; and a plurality of groups of cascading relays, wherein a group of cascading relays are connected in series on the bus between two adjacent relay units; the driving circuit module is connected with the control end of each relay in the relay array module, the driving circuit module is configured to control the on-off of a plurality of groups of cascading relays according to control instructions to switch working modes, and the driving circuit module is also configured to control the on-off of the independent relays according to the control instructions.
According to an embodiment of the utility model, each relay in the relay array module is a reed relay.
According to a specific embodiment of the utility model, the relay array module further comprises a plurality of bus relays, the bus relays are arranged on buses, one end of each bus relay is connected with one bus, the other end of each bus relay is connected with an expansion port, and the expansion port is used for being connected with expansion ports of other relay array boards; the driving circuit module is configured to control the on-off of the bus relay according to the control instruction to realize the expansion of the relay array board card.
According to a specific embodiment of the utility model, the number of the relay units is 4, and 3 groups of cascading relays are arranged among the 4 relay units; when the three groups of cascading relays are closed, the relay array board card works in a first working mode; when two groups of cascading relays at two ends of the bus are closed, the relay array board card works in a second working mode; and when all the cascade relays are not closed, the relay array board card works in a third working mode.
According to a specific embodiment of the utility model, the number of the signal channels is 8, the number of the buses is 4, and the number of the buses is 4; the first working mode is a 1x4x32 mode; the second working mode is a 2x4x16 mode; the third operation mode is a 4x4x8 mode.
To achieve the above and other related objects, the present utility model also provides a relay array board card, including: the relay comprises a relay array module and a driving circuit module; the relay array module includes: a plurality of buses; a plurality of signal channels, a plurality of said buses and a plurality of said signal channels being arranged crosswise; the relay units are sequentially connected in series through a plurality of buses, each relay unit comprises a plurality of independent relays, and each bus is connected with the intersection point of each signal channel through one independent relay; one end of each bus relay is connected with one bus, and the other end of each bus relay is connected with an expansion port; the driving circuit module is connected with the control end of each relay in the relay array module, the driving circuit module is configured to control the on-off of the bus relay according to the control instruction to realize the expansion of the relay array board card, and the driving circuit module is further configured to control the on-off of the independent relay according to the control instruction.
To achieve the above and other related objects, the present utility model further provides a low-voltage high-speed relay matrix board card, including: the control board card is connected with the relay array board card; the control board card is connected with the drive circuit module of the relay array board card; the control board card is used for generating control instructions required by the driving circuit module.
According to a specific embodiment of the utility model, the control board card is inserted on the relay array board card through pin headers.
According to a specific embodiment of the present utility model, the relay array board further includes an external interface module, and the external interface module is used for interacting with external signals.
According to a specific embodiment of the present utility model, the control board card includes an MCU circuit module, a board card address decoding circuit module, and a CAN communication circuit module, where the MCU circuit module is connected to the CAN communication circuit module and the driving circuit module, respectively.
According to an embodiment of the utility model, the CAN communication circuit module comprises a BCD8421 dial knob switch.
According to one embodiment of the present utility model, the board address decoding circuit module includes a digital dial switch.
According to the utility model, the relay units are sequentially connected in series through the buses, independent relays in the relay units are connected at the crossing points of each bus and each signal channel, and a group of cascading relays are connected in series on the buses between the two relay units, so that the conversion of the working modes of the relay array board card relay is realized, the flexible configuration of the working modes of the relay array board card is further completed, and the connection expansion of the relay array board card relay is realized;
One end of the bus relay is connected with one bus, and the other end of the bus relay is connected with an expansion port, wherein the expansion port is used for being connected with expansion ports of other relay array boards, so that the expandability of the relay array boards is realized, and the expansion mode and the expansion capacity of the relay array boards are improved;
and the switching rate of the relay matrix card is improved and quick response is carried out by setting each relay in the relay array module as a reed relay.
Therefore, the utility model can solve the problems of poor expansibility and slow switching rate of the relay matrix card.
Drawings
Fig. 1 is a schematic structural diagram of a relay array board card provided by the utility model;
Fig. 2 is a schematic structural diagram of an embodiment of the relay array board card according to the present utility model operating in a first operation mode;
fig. 3 is a schematic structural diagram of an embodiment of the relay array board card according to the present utility model operating in a second operation mode;
Fig. 4 is a schematic structural diagram of an embodiment of the relay array board card according to the present utility model operating in a third operation mode;
Fig. 5 is a schematic structural diagram of a low-voltage high-speed relay matrix board card according to the present utility model;
Fig. 6 is a schematic structural diagram of the relay array module provided by the present utility model integrated on a board;
In the figure: 101, a bus; 102, signal channels; 103, a relay unit; 104, an independent relay; 105, cascading relays; 106, a bus relay; 107, bus bars; 501, a relay array board card; 502, a relay array module; 503, driving circuit module; 504, control the board card; 505, an MCU circuit module; 506, a board card address decoding circuit module; 507, CAN communication circuit module; 508, a power conversion circuit module; 509, firmware swipe circuit module; 510, an LED indicator module; 511, an external interface module.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the illustrations, not according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
First, some related descriptions are made on the technical background of the present embodiment. At present, most relay matrix cards adopt PCI/PCIe or PXI/PXIe buses, are limited by the number of slots of an industrial personal computer PCI/PCIe or PXI/PXIe chassis, have poor expansibility and have high cost. Meanwhile, a traditional electromagnetic relay is used for a common relay matrix card, and the time for attracting and releasing is generally 2-5ms. While testing of automotive electronics may involve thousands of relay switches, meaning that there may be seconds for relay switching during the test, which severely affects the test beat.
Therefore, the embodiment improves the problem of poor expansibility and slow switching rate of the relay matrix card so as to improve the expansibility and the switching rate of the relay matrix card.
Referring to fig. 1, a relay array board 501 includes: including a relay array module 502 and a driving circuit module 503.
In a specific embodiment, the relay array module 502 includes a plurality of buses 101, a plurality of signal channels 102, a plurality of relay units 103, each of the relay units 103 including a plurality of individual relays 104, and a plurality of sets of cascaded relays 105.
In one embodiment, a plurality of the buses 101 and a plurality of the signal channels 102 are arranged to intersect; the plurality of relay units 103 are sequentially connected in series through the plurality of buses 101, and each bus 101 is connected with the intersection point of each signal channel 102 through one independent relay 104; a group of cascade relays 105 is connected in series to the bus 101 between two adjacent relay units 103.
In a specific embodiment, the driving circuit module 503 is connected to the control end of each relay in the relay array module 502, the driving circuit module 503 is configured to control the on/off of multiple groups of cascaded relays 105 according to a control instruction to perform working mode switching, and the driving circuit module 503 is further configured to control the on/off of the independent relays 104 according to the control instruction.
In addition, the bus relay 106 may further comprise a plurality of bus relays 106, wherein the bus relays 106 are located on buses 107, one end of each bus relay 106 is connected with one bus 101, and the other end is connected with an expansion port; the driving circuit module 503 is connected to the control end of each relay in the relay array module 502, and the driving circuit module 503 is configured to control the on-off of the bus relay 106 according to the control instruction to realize the expansion of the relay array board 501.
In another specific embodiment, the relay array module 502 includes: a plurality of buses 101; a plurality of signal channels 102, a plurality of the buses 101 and a plurality of the signal channels 102 are arranged to intersect; a plurality of relay units 103, wherein the plurality of relay units 103 are sequentially connected in series through a plurality of buses 101, each relay unit 103 comprises a plurality of independent relays 104, and each bus 101 is connected with the intersection point of each signal channel 102 through one independent relay 104; and a plurality of bus relays 106, wherein one end of each bus relay 106 is connected with one bus 101, and the other end is connected with an expansion port; the driving circuit module 503 is connected to the control end of each relay in the relay array module 502, the driving circuit module 503 is configured to control the on-off of the bus relay 106 according to the control instruction to realize the expansion of the relay array board 501, and the driving circuit module 503 is further configured to control the on-off of the independent relay 104 according to the control instruction.
In one embodiment, the relay array board 501 may be expanded according to the expansion port, and may support 128 Zhang Banka (4096 channels) for simultaneous use.
In a specific embodiment, each relay in the relay array module 502 may be a reed relay, so that the response speed of the relay array board card 501 is higher based on the characteristics of small size and high speed of the reed relay, and the switching time is reduced. Specifically, the maximum switching power of the reed relay is 10W, the maximum switching voltage is 110VDC, the maximum switching current is 1A, the electrical life is 10 times 7 times, the mechanical life is 10 times 8 times, and the action time and the release time are less than or equal to 0.2ms. Taking the 1M baud rate as an example, the transmission time of the CAN message is about 0.13ms, and the upper computer is within 0.4ms of sending the control command, so that the relay array board 501 CAN complete the switching.
In an actual application scenario, referring to fig. 2-4, channels 1-32 are represented as signal channels 102, bus1-16 is represented as bus 107, 4 relay units 103 are provided, 3 groups of cascade relays 105 are disposed between 4 relay units 103, the number of signal channels 102 is 8, the number of buses 101 is 4, and the number of bus 107 is 4; the relay array module 502 comprises 156 relays; referring to fig. 2, when three groups of cascaded relays 105 are closed, the relay array board 501 operates in a first operation mode, and the first operation mode is a 1x4x32 mode; referring to fig. 3, when two groups of the cascade relays 105 at two ends of the bus 101 are closed, the relay array board 501 operates in a second operation mode, and the second operation mode is a 2x4x16 mode; referring to fig. 4, when all the cascade relays 105 are not closed, the relay array board 501 operates in a third operation mode, and the third operation mode is a 4x4x8 mode.
Specifically, when working in the first working mode, four relay units 103 are connected in series, and are used as a relay module, wherein 32 signal channels 102 are arranged in one relay module, and the signal channels 102 of numbers 1-32 share 4 buses 101; when working in the second working mode, the four relay units 103 are divided into two relay modules connected in series, each relay module comprises two relay units 103 and is provided with 16 signal channels 102, the signal channels 102 of 1-16 numbers and the signal channels 102 of 17-32 numbers are independent, and 4 buses 101 are respectively used; when the three-phase relay module works in a third working mode, the four relay units 103 are independent of each other to form four corresponding relay modules, each relay module comprises one relay unit 103 and is provided with 8 signal channels 102,1-6 signal channels 102, 9-16 signal channels 102, 17-24 signal channels 102 and 25-32 signal channels 102, and 4 buses 101 are respectively used; when the first, second, and third operation modes are operated, the 4 buses 107 are respectively connected to the 4 buses 101.
In a specific embodiment, the relay array board 501 can be suitable for different test scene requirements through flexible configuration of the working modes.
In a specific embodiment, the interfaces in the driving circuit module 503 are connected to the relays in the relay array module 502 in a one-to-one correspondence manner, and the interfaces in the corresponding driving circuit module 503 can be controlled by the control instruction, so as to realize on-off of different relays.
In a specific embodiment, the relay units are serially connected through a plurality of buses in sequence, independent relays in the relay units are connected at the crossing points of each bus and each signal channel, and a group of cascading relays are serially connected on the buses between the two relay units, so that the working modes of the relay array board card relay are converted, the working modes of the relay array board card are flexibly configured, and the connection expansion of the relay array board card relay is realized.
In a specific embodiment, one end of the bus relay is connected with one bus, the other end of the bus relay is connected with an expansion port, and the expansion port is used for being connected with expansion ports of other relay array boards, so that the expandability of the relay array boards is realized, and the expansion mode and the expansion capacity of the relay array boards are improved.
Referring to fig. 5, a low-voltage high-speed relay matrix board card includes: including a control board card 504 and a relay array board card 501.
In one embodiment, the control board 504 includes an MCU circuit module 505, a board address decoder circuit module 506, a CAN communication circuit module 507, a power conversion circuit module 508, and a firmware swipe circuit module 509; the relay array board 501 includes a driving circuit module 503, a relay array module 502, an LED indicator module 510, and an external interface module 511.
In a specific embodiment, the firmware flashing circuit module 509 performs bidirectional SWD signal transmission with the MCU circuit module 505, and the MCU circuit module 505 performs bidirectional CAN signal transmission with the CAN communication circuit module 507; the power conversion circuit module 508 performs unidirectional VCC voltage transmission on the MCU circuit module 505, the CAN communication circuit module 507, the board address decoding circuit module 506, and the driving circuit module 503, respectively; the board address decoding circuit module 506 performs unidirectional GPIO signal transmission on the MCU circuit module 505, and the MCU circuit module 505 and the driving circuit module 503 perform bidirectional I 2 C protocol signal transmission; the external interface module 511 performs bidirectional message instruction transmission with the CAN communication circuit module 507, and the external interface module 511 performs unidirectional signal transmission with the power conversion circuit module 508; the driving circuit module 503 performs bidirectional analog-to-digital signal transmission with the relay array module 502 and the LED indicator module 510, and the relay array module 502 performs bidirectional signal transmission with the external interface module 511.
Specifically, the CAN communication circuit module 507 is configured to receive a CAN message instruction or a CANFD message instruction sent by an external host computer, the CAN communication circuit module 507 interacts with the MCU circuit module through a CAN signal or a CANFD signal based on the CAN message instruction or the CANFD message instruction, and the MCU circuit module is configured to parse the CAN signal or the CANFD signal and generate a control instruction; the MCU circuit module transmits the control instruction to the driving circuit module 503 through the I 2 C protocol, and the control instruction may control the driving circuit module 503 to switch different relays through the I 2 C protocol, that is, the signal interface in the driving circuit module 503 drives the corresponding relay in the relay array module 502 to be closed based on the control instruction. Wherein the CAN signal or CANFD signal is used for broadcast and point-to-point network control.
In one embodiment, the firmware flashing circuit module 509 is configured to burn a program protocol for transferring program data to the MCU circuit module 505; the LED indicator lamp module 510 is used for lighting up and displaying according to the on-off condition of the relay, so that the working state of the relay is prompted.
In one embodiment, the control board card 504 is plugged onto the relay array board card 501 by pin header.
In a specific embodiment, the external interface module 511 includes a 96P connector, and the 96P connector is used for interacting with external signals; wherein the external signals include a power signal, a CAN signal, a CANFD signal, a relay array input signal, and a relay array output signal. The power signals include 12V and 5V signals, and the 5V signals output VCC voltage to the MCU circuit module 505, the CAN communication circuit module 507, the board address decoding circuit module 506, and the driving circuit module 503 via the power conversion circuit module 508, where the 12V signals are used for supplying power to the relay coils of the relays in the relay array module 502.
In a specific embodiment, the CAN communication circuit module 507 includes a BCD8421 dial knob switch, where the BCD8421 dial knob switch is used to control the communication rate of the CAN signal or the CANFD signal transmitted by the CAN communication circuit module 507, so that 16 different communication rates CAN be supported, and the communication rate CAN reach 5M/s.
In a specific embodiment, the board address decoding circuit module 506 includes a digital dial switch, which is an 8-bit digital dial switch, and controls the address switch of the relay array board 501. Wherein, bit0-bit6 is as address switch, can support 128 cards at most and use simultaneously, and bit7 is as self-checking switch, can mark relay array integrated circuit board 501 and carry out the self-checking operation certainly after the power-on.
In an actual application scenario, when the dial address of the relay array board card 501 is 1-100, the working mode may be set to be 1x4x 32; when the dial address is 101-110, the working mode can be set to be a 2x4x16 mode; when the dial address is 111-120, the working mode can be set to be a 4x4x8 mode.
In a specific embodiment, the working mode of the relay array module 502 may be switched by a message instruction sent by an external host computer and/or an address switch of the relay array board 501.
Referring to fig. 6, the relay array module includes 156 relays, the relays in the relay array module 502 are integrated on a board card with a preset unit height, and the board card is provided with an LED indicator module 510 and an external interface module 511, where the preset unit height may be 3U. Wherein 1U is 4.445cm; the relay array board 501 is a rectangular board, and the length and width of the rectangular board may be set to 340mm×100m.
In summary, the utility model can flexibly configure the working mode of the relay array board 501 by performing the on-off connection between the plurality of relays in the relay array module 502 and the signal channel 102, the bus 101 and/or the bus 107, and can realize the expansion of the relay array board 501 by connecting the bus 101 with the cascade relay 105 and/or connecting the bus 107 with the bus relay 106 and the expansion port, thereby improving the expansion mode and the expansion capability of the relay array board 501; by configuring the independent relays 104, the cascade relays 105 and the bus relays 106 in the relay array module 502, the switching rate of the relay matrix card can be improved, and quick response can be realized; therefore, the utility model can solve the problems of poor expansibility and slow switching rate of the relay matrix card.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the utility model. One skilled in the relevant art will recognize, however, that an embodiment of the utility model can be practiced without one or more of the specific details, or with other apparatus, systems, components, methods, components, materials, parts, and so forth. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the utility model.
Reference throughout this specification to "one embodiment," "an embodiment," or "a particular embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment, and not necessarily all embodiments, of the present utility model. Thus, the appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the present utility model may be combined in any suitable manner with one or more other embodiments. It will be appreciated that other variations and modifications of the embodiments of the utility model described and illustrated herein are possible in light of the teachings herein and are to be considered as part of the spirit and scope of the utility model.
It will also be appreciated that one or more of the elements shown in the figures may also be implemented in a more separated or integrated manner, or even removed because of inoperability in certain circumstances or provided because it may be useful depending on the particular application.
In addition, any labeled arrows in the drawings/figures should be considered only as exemplary, and not limiting, unless otherwise specifically indicated. Furthermore, the term "or" as used herein is generally intended to mean "and/or" unless specified otherwise. Combinations of parts or steps will also be considered as being noted where terminology is foreseen as rendering the ability to separate or combine is unclear.
As used in the description herein and throughout the claims that follow, unless otherwise indicated, "a", "an", and "the" include plural references. Also, as used in the description herein and throughout the claims that follow, unless otherwise indicated, the meaning of "in …" includes "in …" and "on …".
The above description of illustrated embodiments of the utility model, including what is described in the abstract, is not intended to be exhaustive or to limit the utility model to the precise forms disclosed herein. Although specific embodiments of, and examples for, the utility model are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present utility model, as those skilled in the relevant art will recognize and appreciate. As noted, these modifications can be made to the present utility model in light of the foregoing description of illustrated embodiments of the present utility model and are to be included within the spirit and scope of the present utility model.
The systems and methods have been described herein in general terms as being helpful in understanding the details of the present utility model. Furthermore, various specific details have been set forth in order to provide a thorough understanding of embodiments of the utility model. One skilled in the relevant art will recognize, however, that an embodiment of the utility model can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the utility model.
Thus, although the utility model has been described herein with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosures, and it will be appreciated that in some instances some features of the utility model will be employed without a corresponding use of other features without departing from the scope and spirit of the utility model as set forth. Therefore, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present utility model. It is intended that the utility model not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this utility model, but that the utility model will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the utility model should be determined only by the following claims.
Claims (12)
1. The relay array board card is characterized by comprising a relay array module and a driving circuit module;
The relay array module includes:
A plurality of buses;
A plurality of signal channels, a plurality of said buses and a plurality of said signal channels being arranged crosswise;
The relay units are sequentially connected in series through a plurality of buses, each relay unit comprises a plurality of independent relays, and the intersection point of each bus and each signal channel is connected through one independent relay; and
A plurality of groups of cascading relays are connected in series on the buses between two adjacent relay units;
the driving circuit module is connected with the control end of each relay in the relay array module, the driving circuit module is configured to control the on-off of a plurality of groups of cascading relays according to control instructions to switch working modes, and the driving circuit module is also configured to control the on-off of the independent relays according to the control instructions.
2. The relay array card of claim 1, wherein each relay in the relay array module is a reed relay.
3. The relay array board card of claim 1, wherein the relay array module further comprises a plurality of bus relays, the bus relays are arranged on buses, one end of each bus relay is connected with one bus, the other end of each bus relay is connected with an expansion port, and the expansion port is used for being connected with expansion ports of other relay array board cards;
The driving circuit module is configured to control the on-off of the bus relay according to the control instruction to realize the expansion of the relay array board card.
4. The relay array board card of claim 3, wherein the number of the relay units is 4, and 3 groups of cascading relays are arranged among the 4 relay units;
When the three groups of cascading relays are closed, the relay array board card works in a first working mode;
when two groups of cascading relays at two ends of the bus are closed, the relay array board card works in a second working mode;
And when all the cascade relays are not closed, the relay array board card works in a third working mode.
5. The relay array board card of claim 4, wherein the number of signal channels is 8, the number of buses is 4, and the number of buses is 4; the first working mode is a 1x4x32 mode; the second working mode is a 2x4x16 mode; the third operation mode is a 4x4x8 mode.
6. The relay array board card is characterized by comprising a relay array module and a driving circuit module;
The relay array module includes:
A plurality of buses;
A plurality of signal channels, a plurality of said buses and a plurality of said signal channels being arranged crosswise;
The relay units are sequentially connected in series through a plurality of buses, each relay unit comprises a plurality of independent relays, and each bus is connected with the intersection point of each signal channel through one independent relay; and
One end of each bus relay is connected with one bus, and the other end of each bus relay is connected with an expansion port;
The driving circuit module is connected with the control end of each relay in the relay array module, the driving circuit module is configured to control the on-off of the bus relay according to the control instruction to realize the expansion of the relay array board card, and the driving circuit module is further configured to control the on-off of the independent relay according to the control instruction.
7. A low voltage high speed relay matrix board card comprising: a control board card and a relay array board card according to any one of claims 1 to 6;
the control board card is connected with the drive circuit module of the relay array board card;
the control board card is used for generating control instructions required by the driving circuit module.
8. The low voltage high speed relay matrix board card of claim 7, wherein the control board card is plugged onto the relay matrix board card by pin headers.
9. The low voltage high speed relay matrix board card of claim 7, further comprising an external interface module for interacting with external signals.
10. The low-voltage high-speed relay matrix board card according to claim 7, wherein the control board card comprises an MCU circuit module, a board card address decoding circuit module and a CAN communication circuit module, and the MCU circuit module is respectively connected with the CAN communication circuit module and the driving circuit module.
11. The low voltage high speed relay matrix board card of claim 10 wherein the CAN communication circuit module comprises a BCD8421 dial knob switch.
12. The low voltage high speed relay matrix board of claim 10, wherein the board address decode circuit module comprises a digital dial switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321653181.9U CN220821402U (en) | 2023-06-27 | 2023-06-27 | Relay array board card and low-voltage high-speed relay array board card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321653181.9U CN220821402U (en) | 2023-06-27 | 2023-06-27 | Relay array board card and low-voltage high-speed relay array board card |
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