Mutual standby CAN device
By designing a mutual backup CAN device, relay switching is used to quickly switch to the backup gateway when the CAN gateway fails, the problem of equipment downtime caused by long repair time of customized CAN gateway failure is solved, and high availability of equipment and continuous production is achieved.
Patent Information
- Application Number
- CN202420870282.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-25
AI Technical Summary
CAN gateway is a customized product. If a fault occurs, it requires temporary replacement or repair. The replacement or repair time is long, resulting in the electrophoretic paint equipment not being turned on and wasting production time.
A mutual backup type CAN device is designed, including a first CAN gateway, a second CAN gateway, a first relay and a second relay, and fault monitoring is performed through a PLC controller. When the first CAN gateway fails, the second CAN gateway is put into use through relay switching to ensure stable operation of the power supply system.
It greatly reduces the risk of failure, avoids equipment shutdown due to long replacement or maintenance time, ensures the normal production of electrophoretic paint equipment, and facilitates the maintenance process.
Smart Images
Figure CN222602428U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of CAN gateway equipment, in particular to a mutual standby type CAN device. Background Art
[0002] In the surface treatment of architectural aluminum alloy, the aluminum alloy surface is first oxidized by anodizing, and then electrophoresis is performed, which is called electrophoretic painting. It can form a dense resin film layer on the surface of the aluminum profile. In the power supply system of the electrophoretic painting equipment, a CAN to modbus rtu protocol conversion gateway is required. Each gateway can transmit data from multiple power modules to the PLC, and the PLC sends the control data to the power module through the gateway. Therefore, the gateway is a bridge for data exchange between the PLC controller and the module power supply in the module power supply system.
[0003] The CAN to modbus rtu protocol conversion gateway plays a vital role in the power supply system of electrophoretic painting equipment. The gateway is a customized product. If the gateway fails, it needs to be temporarily replaced or repaired. The replacement or repair time is long, and the electrophoretic painting equipment cannot be started during the replacement or repair process, which will waste precious production time. Therefore, a mutual backup CAN device is proposed to address the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a mutual backup CAN device to solve the problem that the CAN gateway is a customized product. If the gateway fails, it needs to be temporarily replaced or repaired, which takes a long time. In addition, the electrophoretic painting equipment cannot be started during the replacement or repair process, which wastes valuable production time.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A mutual standby CAN device comprises a first CAN gateway, a second CAN gateway, a first relay and a second relay, wherein the first CAN gateway and the second CAN gateway are both fixedly connected to first fixing ears on the left and right sides, and the first relay and the second relay are both fixedly connected to second fixing ears on the front and rear sides, the left side of the first relay is fixedly connected to one end of an input connection line, the front and rear sides of the first relay are respectively fixedly connected to one end of two first branch connection lines, the other ends of the two first branch connection lines are respectively fixedly connected to the left ends of the first CAN gateway and the second CAN gateway, the right ends of the first CAN gateway and the second CAN gateway are respectively fixedly connected to one end of two second branch connection lines, the other ends of the two second branch connection lines are respectively fixedly connected to the front and rear sides of the second relay, the right side of the second relay is fixedly connected to one end of an output connection line, the first CAN gateway and the second CAN gateway are respectively bolted to a connecting substrate, the first relay and the second relay are respectively bolted to the connecting substrate, the upper half of the connecting substrate is provided with a first limiting groove and a second limiting groove, the lower side of the position where the connecting substrate is provided with the first limiting groove is provided with a first heat dissipation hole, the lower side of the position where the connecting substrate is provided with the second limiting groove is provided with a second heat dissipation hole, and a bent fixing plate is welded at the bottom of the connecting substrate.
[0007] Preferably, the first CAN gateway and the second CAN gateway are respectively provided with two interfaces on the left and right sides, the first relay and the second relay are provided with interfaces on the front and back sides, the first relay is provided with an interface on the left side, and the second relay is provided with an interface on the right side.
[0008] Preferably, the first fixing ears and the second fixing ears are each in two groups, each group of the first fixing ears and the second fixing ears is four, and the first branch connecting wires and the second branch connecting wires are each in two groups.
[0009] Preferably, the connecting substrate is a horizontally distributed rectangular plate, there are two first limiting grooves and two second limiting grooves, and both the first limiting grooves and the second limiting grooves are rectangular grooves.
[0010] Preferably, the first heat dissipation holes and the second heat dissipation holes are both cylindrical through holes, there are two groups of the first heat dissipation holes and the second heat dissipation holes, the first heat dissipation holes and the second heat dissipation holes in each group are evenly distributed, there are two bending fixing plates, and the bending fixing plates are both "U"-shaped bending structures.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] In the utility model, by setting up the first CAN gateway, the second CAN gateway, the first relay and the second relay, the first CAN gateway and the second CAN gateway can be used as backup for each other, and fault monitoring is performed through the PLC controller. When the running first CAN gateway fails, the internal contacts of the first relay and the second relay are changed from the disconnected state to the attracted state through the PLC controller, so that the second CAN gateway can be put into use, and the first CAN gateway is powered off at the same time. This device can greatly reduce the risk of failure, avoid the electrophoretic painting equipment from being unable to start up due to long replacement or maintenance time when the first CAN gateway fails, ensure the normal production of the electrophoretic painting equipment, and facilitate maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is an exploded view of the overall structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the installation structure of the CAN gateway of the utility model.
[0016] In the figure: 1. first CAN gateway; 2. second CAN gateway; 3. first relay; 4. second relay; 5. first fixing ear; 6. second fixing ear; 7. input connecting line; 8. first branch connecting line; 9. second branch connecting line; 10. output connecting line; 11. connecting substrate; 12. first limiting groove; 13. second limiting groove; 14. first heat dissipation hole; 15. second heat dissipation hole; 16. bending fixing plate. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0019] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0020] See also Figure 1-3 , the utility model provides a technical solution:
[0021] A mutual standby CAN device comprises a first CAN gateway 1, a second CAN gateway 2, a first relay 3 and a second relay 4, the first CAN gateway 1 and the second CAN gateway 2 are both fixedly connected to a first fixing ear 5 on the left and right sides, the first relay 3 and the second relay 4 are both fixedly connected to a second fixing ear 6 on the front and rear sides, the left side of the first relay 3 is fixedly connected to one end of an input connection line 7, the front and rear sides of the first relay 3 are respectively fixedly connected to one end of two first branch connection lines 8, the other ends of the two first branch connection lines 8 are respectively fixedly connected to the left ends of the first CAN gateway 1 and the second CAN gateway 2, and the right ends of the first CAN gateway 1 and the second CAN gateway 2 are respectively fixedly connected to two second branch connection lines 8. One end of the two branch connecting lines 9 and the other ends of the two second branch connecting lines 9 are respectively fixedly connected to the front and rear sides of the second relay 4, and the right side of the second relay 4 is fixedly connected to one end of the output connecting line 10. The first CAN gateway 1 and the second CAN gateway 2 are respectively bolted to the connecting substrate 11, and the first relay 3 and the second relay 4 are respectively bolted to the connecting substrate 11. The upper part of the connecting substrate 11 is provided with a first limiting groove 12 and a second limiting groove 13. The lower side of the position where the connecting substrate 11 is provided with the first limiting groove 12 is provided with a first heat dissipation hole 14, and the lower side of the position where the connecting substrate 11 is provided with the second limiting groove 13 is provided with a second heat dissipation hole 15. A bent fixing plate 16 is welded at the bottom of the connecting substrate 11.
[0022] The first CAN gateway 1 and the second CAN gateway 2 are respectively provided with two interfaces on the left and right sides, the first relay 3 and the second relay 4 are provided with interfaces on the front and back sides, the left side of the first relay 3 is provided with an interface, and the right side of the second relay 4 is provided with an interface, so that the device can be connected to the power supply system; there are two groups of first fixing ears 5 and second fixing ears 6, and each group of first fixing ears 5 and second fixing ears 6 has four, and there are two first branch connecting lines 8 and second branch connecting lines 9, so that the first CAN gateway 1 and the second CAN gateway 2 can switch with each other; the connecting substrate 11 is a horizontally distributed rectangular plate, and there are two first limiting grooves 12 and second limiting grooves 13, and the first limiting grooves 12 and second limiting grooves 13 are both rectangular grooves, so that the first CAN gateway 1 and the second CAN gateway 2 can be fixed at a specified position; the first heat dissipation hole 14 and the second heat dissipation hole 15 are both cylindrical through holes, and there are two groups of first heat dissipation holes 14 and second heat dissipation holes 15, and the first heat dissipation holes 14 and the second heat dissipation holes 15 in each group are evenly distributed, and there are two bending fixing plates 16, and the bending fixing plates 16 are all "U"-shaped bending structures, which can quickly dissipate heat from the bottom of the connecting substrate 11.
[0023] Working process: the first CAN gateway 1 and the second CAN gateway 2 of the device are of the same model, the first relay 3 and the second relay 4 are of the same model, the input connection line 7, the first branch connection line 8, the second branch connection line 9 and the output connection line 10 are of the same model. Before use, the device is connected to the power supply system of the electrophoretic painting equipment, the bent fixing plate 16 is bolted in a suitable position to fix the connecting substrate 11, the left end of the input connection line 7 is inserted into the interface of the PLC controller, and the right end of the output connection line 10 is inserted into the interface of the power module. The device can be used normally, the first CAN gateway 1 and the second CAN gateway 2 are standby for each other. At this time, the internal contacts of the first relay 3 and the second relay 4 are both in the disconnected state, the left end interface of the first relay 3 and the front side interface are electrically connected, and the right end interface of the second relay 4 and the front side interface are electrically connected. The first CAN gateway 1 is put into use, the first CAN gateway 1 can make the power supply system run stably, and the second CAN gateway 2 is in the standby state, and the second CAN gateway 2 does not consume power at this time. When the device is operating normally, the first heat dissipation hole 14 and the second heat dissipation hole 15 on the lower side of the first limit groove 12 and the second limit groove 13 are used. Heat dissipation; the PLC controller is an existing device. According to the existing technology, the PLC controller can determine the state of the first CAN gateway 1 by itself, so it can perform fault monitoring. When the running first CAN gateway 1 fails, the PLC controller can control the internal contacts of the first relay 3 and the second relay 4 to change from a disconnected state to a closed state, the left end interface of the first relay 3 and the rear side interface are electrically connected, and the right end interface of the second relay 4 and the rear side interface are electrically connected. The second CAN gateway 2 is put into use. The second CAN gateway 2 can make the power supply system run stably, while the first CAN gateway 1 is powered off. At this time, the bolt connection between the first CAN gateway 1 and the connecting substrate 11 can be released, and the first CAN gateway 1 can be quickly removed for factory repair. After the PLC controller determines that the first CAN gateway 1 has failed, it can give an alarm prompt. The PLC controller adjusts the switching process of the first relay 3 and the second relay 4 in less than one minute, which has little impact on production. The device can greatly reduce the risk of failure, avoid the failure of the first CAN gateway 1 due to a long replacement or repair time, resulting in the inability to start the electrophoretic painting equipment, ensure the normal production of the electrophoretic painting equipment, and facilitate maintenance.
[0024] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A mutual backup CAN device, comprising a first CAN gateway (1), a second CAN gateway (2), a first relay (3) and a second relay (4), characterized in that: The first CAN gateway (1) and the second CAN gateway (2) are both fixedly connected to first fixing ears (5) on the left and right sides, the first relay (3) and the second relay (4) are both fixedly connected to second fixing ears (6) on the front and rear sides, the left side of the first relay (3) is fixedly connected to one end of an input connection line (7), the front and rear sides of the first relay (3) are respectively fixedly connected to one end of two first branch connection lines (8), the other ends of the two first branch connection lines (8) are respectively fixedly connected to the left ends of the first CAN gateway (1) and the second CAN gateway (2), the right ends of the first CAN gateway (1) and the second CAN gateway (2) are respectively fixedly connected to one end of two second branch connection lines (9), the other ends of the two second branch connection lines (9) are respectively fixedly connected to the left ends of the first CAN gateway (1) and the second CAN gateway (2), The first CAN gateway (1) and the second CAN gateway (2) are respectively fixedly connected to the front and rear sides of the second relay (4); the right side of the second relay (4) is fixedly connected to one end of the output connection line (10); the first CAN gateway (1) and the second CAN gateway (2) are respectively bolted to the connection substrate (11); the first relay (3) and the second relay (4) are respectively bolted to the connection substrate (11); the upper part of the connection substrate (11) is provided with a first limiting groove (12) and a second limiting groove (13); the lower side of the connection substrate (11) where the first limiting groove (12) is provided is provided with a first heat dissipation hole (14); the lower side of the connection substrate (11) where the second limiting groove (13) is provided is provided with a second heat dissipation hole (15); and a bent fixing plate (16) is welded to the bottom of the connection substrate (11).
2. A mutual standby CAN device according to claim 1, characterized in that: The first CAN gateway (1) and the second CAN gateway (2) are provided with two interfaces on the left and right sides respectively, and the first relay (3) and the second relay (4) are provided with interfaces on the front and rear sides respectively, the first relay (3) is provided with an interface on the left side, and the second relay (4) is provided with an interface on the right side.
3. A mutual standby CAN device according to claim 1, characterized in that: The first fixing ears (5) and the second fixing ears (6) each have two groups, each group of the first fixing ears (5) and the second fixing ears (6) has four, and the first branch connecting wires (8) and the second branch connecting wires (9) each have two.
4. A mutual backup CAN device according to claim 1, characterized in that: The connecting base plate (11) is a horizontally distributed rectangular plate, and has two first limiting grooves (12) and two second limiting grooves (13), and both the first limiting groove (12) and the second limiting groove (13) are rectangular grooves.
5. A mutual backup CAN device according to claim 1, characterized in that: The first heat dissipation holes (14) and the second heat dissipation holes (15) are both cylindrical through holes. The first heat dissipation holes (14) and the second heat dissipation holes (15) are each in two groups. The first heat dissipation holes (14) and the second heat dissipation holes (15) in each group are evenly spaced. There are two bent fixing plates (16), and the bent fixing plates (16) are both "U"-shaped bent structures.