CN206294195U - A kind of resistance access system based on CAN bus - Google Patents
A kind of resistance access system based on CAN bus Download PDFInfo
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- CN206294195U CN206294195U CN201621178593.1U CN201621178593U CN206294195U CN 206294195 U CN206294195 U CN 206294195U CN 201621178593 U CN201621178593 U CN 201621178593U CN 206294195 U CN206294195 U CN 206294195U
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- 238000002788 crimping Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 230000006854 communication Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 2
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- 238000003466 welding Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of resistance access system based on CAN bus, it is intended to solve the problems, such as that the production strand design that terminal resistance access way is caused in the prior art is complicated.The resistance access system based on CAN bus that the utility model is provided, terminal resistance device has the socket matched with harvester, can directly be inserted on any one harvester, so as to reduce the problem of the production strand design complexity that prior art is caused, terminal resistance device is convenient to be dismantled so that operation becomes simple.
Description
Technical field
The utility model belongs to electronic technology field, more particularly to a kind of resistance based on CAN bus connects
Enter system.
Background technology
In communication process, two kinds of reasons can cause signal reflex：Impedance discontinuity or impedance mismatch.Wherein, impedance
When discontinuous, signal suddenly encounters cable resistance very little even without signal will cause in this place in line end
Reflection.The principle of this signal reflex, entering another medium from a kind of medium with light will cause reflection similar.Eliminate this anti-
The method penetrated, just must cable end bridge one with an equal amount of terminal resistance of the characteristic impedance of cable, make cable
Impedance it is continuous.Because transmission of the signal on cable is two-way, therefore, can bridge one together in the other end of communication cable
The terminal resistance of sample size.During impedance mismatch, the impedance mismatch between data collector and transmission cable will also result in letter
Number reflection, when being mainly manifested in communication line and being in idle mode, whole network data corruption.
Terminal resistance is to eliminate the signal reflex in communication cable.In order to improve the topological ability of network node,
Controller local area network (CAN, Controller Area Network) bus two ends need the suppression for being connected to 120 ohm to reflect
Terminal resistance, it plays very important effect to CAN matching bus impedances, if ignoring this terminal resistance, can make numeral
The anti-interference and reliability of communication are substantially reduced, or even cannot be communicated.
At present, the terminal resistance that the suppression for mounting 120 ohm using CAN two ends mostly in CAN communication is reflected.With
Mobile energy storage supplement is fast-developing, the multilayer arrangement of battery pack, and CAN walks wire leading method various.But current terminal resistance
Access way there is a problem of that production strand design is complicated.
Utility model content
The utility model provides a kind of CAN bus terminal resistance access system, it is intended to solve existing skill
The problem of the production strand design complexity that terminal resistance access way is caused in art.
To solve the above problems, the utility model provides a kind of resistance based on CAN bus and accesses system
System, the system includes：CAN bus, one or more harvesters and terminal resistance device.
One or more harvesters are accessed on the CAN bus；
Each described harvester is respectively provided with socket, and the socket matches with the plug of the terminal resistance device；
The terminal resistance device, by the plug and any one described collection on the CAN bus
The socket grafting of device.
Further, the multiple harvester is accessed in the controller LAN in series and/or in parallel
In network bus；The battery that the harvester is used in Management Controller LAN.
Further, the system also includes battery management module, and the battery management module is arranged at the controller
On Area Network bus, it is connected by the CAN bus with the harvester, for controlling described adopting
Acquisition means work.
Further, the terminal resistance device includes glue shell；Described glue shell one end is plug, and one end is connection terminal,
The plug end design of the glue shell is matched with the terminal resistance socket of the harvester.
Further, the terminal resistance device also includes terminal resistance and heat-shrink tube；The terminal resistance with it is described
The low level wire pin of the high-order wire pin of the CAN bus of the connection terminal of glue shell and device Area Network bus processed
Crimping；The shrinkable sleeve is rolled in outside the terminal resistance, for insulation protection.
Compared with prior art, beneficial effect is the utility model：
The utility model provide CAN bus terminal resistance access system, terminal resistance device have with
The socket that harvester matches, can directly be inserted on any one harvester, so as to reduce the life that prior art is caused
The complicated problem of strand design is produced, terminal resistance device is convenient to be dismantled so that operation becomes simple.
Brief description of the drawings
Fig. 1 illustrates for the resistance access system based on CAN bus that the utility model embodiment is provided
Figure；
Fig. 2 shows for resistance access system of the S types based on CAN bus that the utility model embodiment is provided
It is intended to；
Fig. 3 shows for resistance access system of the X-type based on CAN bus that the utility model embodiment is provided
It is intended to；
Fig. 4 shows for the O-shaped resistance access system based on CAN bus that the utility model embodiment is provided
It is intended to；
Fig. 5 is harvester schematic diagram in the utility model embodiment；
Fig. 6 is terminal resistance schematic device in the utility model embodiment；
Fig. 7 is glue shell schematic diagram in the utility model embodiment；
Fig. 8 is terminal schematic elevation view in the utility model embodiment.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
First embodiment of the present utility model, second embodiment, 3rd embodiment and fourth embodiment all there is provided
Based on the resistance access system of control area net(CAN) network bus, by taking E type CAN terminal resistance access systems as an example, reference picture 1.
Fig. 1 is the resistance access system based on CAN bus that the utility model first embodiment is provided
Schematic diagram, the system includes：CAN bus 10, one or more harvesters 20 and terminal resistance device 30.
Wherein, one or more harvesters 20 are accessed on CAN bus 10；Each harvester 20 is equal
With socket, the socket matches with the plug of terminal resistance device 30；
Terminal resistance device 30, by any one harvester 20 on the plug and CAN bus 10
Socket grafting.
Further, multiple harvesters 20 are accessed in the controller local area network in series and/or in parallel
In bus 10；The battery that harvester 20 is used in Management Controller LAN.
Further, the system also includes battery management module (BMS, Battery Management System) 40, electricity
Pond management module 40 is arranged on CAN bus 10, and CAN bus 10 are passed through with harvester 20
It is connected, for controlling harvester 20 to work.
As shown in fig. 6, the terminal resistance schematic device provided for the utility model embodiment, terminal resistance device 30 is wrapped
Include glue shell 601, terminal resistance 602 and heat-shrink tube 603.As shown in fig. 7, the terminal resistance provided for the utility model embodiment
The glue shell schematic diagram of device.The one end of glue shell 601 is plug 701, and the other end is connection terminal 702, the plug end 701 of glue shell 601
Design is matched with the terminal resistance socket of harvester 20, for being inserted in the harvester；Terminal resistance 602 and glue shell
601 connection terminal 702 is crimped；603 sets of heat-shrink tube is rolled in outside terminal resistance 602, for insulation protection.In the utility model reality
Apply in example, the model female end glue shell of glue shell 601, terminal is gold-plated material, selection female end glue shell can with gold-plated material terminal herein
To reach optimum efficiency, but the utility model can not be limited.
Further, in the connection terminal 702 that the utility model embodiment is provided, it is necessary to including bit line (CAN- high
H, CAN High) pin and low-bit line (CAN-L, CAN Low) pin.Wherein, CAN-L pins be used for harvester on
CAN-L lines are connected；CAN-H pins are used to be connected with the CAN-H lines on harvester, access terminal resistance 602 so as to reach
The purpose of CAN.As shown in figure 8, the terminal schematic elevation view of the terminal resistance device provided for the utility model embodiment.
To being expressed as facing, 801 is 1 pin of terminal to A, and 802 is 2 pin of terminal, and 803 is 3 pin of terminal, and 804 is 4 pin of terminal, 805
It is 5 pin of terminal, 806 is 6 pin of terminal.In the utility model embodiment, 1 pin 801 is blue, 24V-；2 pin 802 are palm fibre
Color, 24V+；3 pin 803 are sky；4 pin 804 are screen layer；5 pin 805 are multiple twin red CAN-L；6 pin 806 are multiple twin yellow CAN-
H.The resistance of terminal resistance 602 is 120 ohm.
Used as first embodiment of the present utility model, multiple harvesters 20 are combined with the series and parallel of similar " E " font
Mode is linked into CAN 10, reduces the complexity of production strand design, while terminal resistance device 30 has and collection
The socket that device 20 matches, is directly inserted on any one harvester 20, portable can dismantle, and reduces the difficulty of later maintenance
Degree.In a word, the utility model first embodiment reduces production wire harness expense, while making operation become simple, reduces existing skill
The expense of the human weld in art, comprehensively reduces production cost.
According to the difference of access way of the multiple harvesters 20 in CAN 10, the utility model embodiment is carried
The structure of the resistance access system based on CAN bus for supplying can have polytype.First embodiment above
It is E types.
Fig. 2 is the resistance access system that the S types that the utility model second embodiment is provided are based on CAN bus
The schematic diagram of system.The system includes CAN bus 10, one or more harvesters 20 and terminal resistance device
30。
Wherein, one or more harvesters 20 are accessed on CAN bus 10；Each harvester 20 is equal
With socket, the socket matches with the plug of terminal resistance device 30；
Terminal resistance device 30, by any one harvester 20 on the plug and CAN bus 10
Socket grafting.
Further, multiple harvesters 20 are accessed in the controller local area network in series and/or in parallel
In bus 10；The battery that harvester 20 is used in Management Controller LAN.
Further, the system also includes battery management module 40, and battery management module 40 is arranged at controller LAN
In network bus 10, it is connected by CAN bus 10 with harvester 20, for controlling harvester 20 to work.
As shown in fig. 6, the terminal resistance schematic device provided for the utility model embodiment, terminal resistance device 30 is wrapped
Include glue shell 601, terminal resistance 602 and heat-shrink tube 603.As shown in fig. 7, the terminal resistance provided for the utility model embodiment
The glue shell schematic diagram of device.The one end of glue shell 601 is plug 701, and the other end is connection terminal 702, the plug end 701 of glue shell 601
Design is matched with the terminal resistance socket of harvester 20, for being inserted in the harvester；Terminal resistance 602 and glue shell
601 connection terminal 702 is crimped；603 sets of heat-shrink tube is rolled in outside terminal resistance 602, for insulation protection.In the utility model reality
Apply in example, the model female end glue shell of glue shell 601, terminal is gold-plated material, selection female end glue shell can with gold-plated material terminal herein
To reach optimum efficiency, but the utility model can not be limited.
Further, in the connection terminal 702 that the utility model embodiment is provided, it is necessary to including bit line (CAN- high
H, CAN High) pin and low-bit line (CAN-L, CAN Low) pin.Wherein, CAN-L pins be used for harvester on
CAN-L lines are connected；CAN-H pins are used to be connected with the CAN-H lines on harvester, access terminal resistance 602 so as to reach
The purpose of CAN.As shown in figure 8, the terminal schematic elevation view of the terminal resistance device provided for the utility model embodiment.
To being expressed as facing, 801 is 1 pin of terminal to A, and 802 is 2 pin of terminal, and 803 is 3 pin of terminal, and 804 is 4 pin of terminal, 805
It is 5 pin of terminal, 806 is 6 pin of terminal.In the utility model embodiment, 1 pin 801 is blue, 24V-；2 pin 802 are palm fibre
Color, 24V+；3 pin 803 are sky；4 pin 804 are screen layer；5 pin 805 are multiple twin red CAN-L；6 pin 806 are multiple twin yellow CAN-
H.The resistance of terminal resistance 602 is 120 ohm.
Used as second embodiment of the present utility model, multiple harvesters 20 are accessed with being similar to the series system of " S " font
Onto CAN 10, the complexity of production strand design is reduced, while terminal resistance device 30 has and the phase of harvester 20
The socket of matching, is directly inserted on any one harvester 20, portable can dismantle, and reduces the difficulty of later maintenance.In a word,
The utility model second embodiment reduces production wire harness expense, while making operation become simple, reduces people of the prior art
The expense of work welding, comprehensively reduces production cost.
Fig. 3 is the resistance access system that the X-type that the utility model second embodiment is provided is based on CAN bus
The schematic diagram of system.The system includes CAN bus 10, one or more harvesters 20 and terminal resistance device
30。
Wherein, one or more harvesters 20 are accessed on CAN bus 10；Each harvester 20 is equal
With socket, the socket matches with the plug of terminal resistance device 30；
Terminal resistance device 30, by any one harvester 20 on the plug and CAN bus 10
Socket grafting.
Further, multiple harvesters 20 are accessed in the controller local area network in series and/or in parallel
In bus 10；The battery that harvester 20 is used in Management Controller LAN.
Further, the system also includes battery management module 40, and battery management module 40 is arranged at controller LAN
In network bus 10, it is connected by CAN bus 10 with harvester 20, for controlling harvester 20 to work.
As shown in fig. 6, the terminal resistance schematic device provided for the utility model embodiment, terminal resistance device 30 is wrapped
Include glue shell 601, terminal resistance 602 and heat-shrink tube 603.As shown in fig. 7, the terminal resistance provided for the utility model embodiment
The glue shell schematic diagram of device.The one end of glue shell 601 is plug 701, and the other end is connection terminal 702, the plug end 701 of glue shell 601
Design is matched with the terminal resistance socket of harvester 20, for being inserted in the harvester；Terminal resistance 602 and glue shell
601 connection terminal 702 is crimped；603 sets of heat-shrink tube is rolled in outside terminal resistance 602, for insulation protection.In the utility model reality
Apply in example, the model female end glue shell of glue shell 601, terminal is gold-plated material, selection female end glue shell can with gold-plated material terminal herein
To reach optimum efficiency, but the utility model can not be limited.
Further, in the connection terminal 702 that the utility model embodiment is provided, it is necessary to including bit line (CAN- high
H, CAN High) pin and low-bit line (CAN-L, CAN Low) pin.Wherein, CAN-L pins be used for harvester on
CAN-L lines are connected；CAN-H pins are used to be connected with the CAN-H lines on harvester, access terminal resistance 602 so as to reach
The purpose of CAN.As shown in figure 8, the terminal schematic elevation view of the terminal resistance device provided for the utility model embodiment.
To being expressed as facing, 801 is 1 pin of terminal to A, and 802 is 2 pin of terminal, and 803 is 3 pin of terminal, and 804 is 4 pin of terminal, 805
It is 5 pin of terminal, 806 is 6 pin of terminal.In the utility model embodiment, 1 pin 801 is blue, 24V-；2 pin 802 are palm fibre
Color, 24V+；3 pin 803 are sky；4 pin 804 are screen layer；5 pin 805 are multiple twin red CAN-L；6 pin 806 are multiple twin yellow CAN-
H.The resistance of terminal resistance 602 is 120 ohm.
Used as 3rd embodiment of the present utility model, multiple harvesters 20 are combined with the series and parallel of similar " X " font
Mode is linked into CAN 10, reduces the complexity of production strand design, while terminal resistance device 30 has and collection
The socket that device 20 matches, is directly inserted on any one harvester 20, portable can dismantle, and reduces the difficulty of later maintenance
Degree.In a word, the utility model 3rd embodiment reduces production wire harness expense, while making operation become simple, reduces existing skill
The expense of the human weld in art, comprehensively reduces production cost.
Fig. 4 is that the O-shaped resistance based on CAN bus that the utility model second embodiment is provided accesses system
The schematic diagram of system.The system includes CAN bus 10, one or more harvesters 20 and terminal resistance device
30。
Wherein, one or more harvesters 20 are accessed on CAN bus 10；Each harvester 20 is equal
With socket, the socket matches with the plug of terminal resistance device 30；
Terminal resistance device 30, by any one harvester 20 on the plug and CAN bus 10
Socket grafting.
Further, multiple harvesters 20 are accessed in the controller local area network in series and/or in parallel
In bus 10；The battery that harvester 20 is used in Management Controller LAN.
Further, the system also includes battery management module 40, and battery management module 40 is arranged at controller LAN
In network bus 10, it is connected by CAN bus 10 with harvester 20, for controlling harvester 20 to work.
As shown in fig. 6, the terminal resistance schematic device provided for the utility model embodiment, terminal resistance device 30 is wrapped
Include glue shell 601, terminal resistance 602 and heat-shrink tube 603.As shown in fig. 7, the terminal resistance provided for the utility model embodiment
The glue shell schematic diagram of device.The one end of glue shell 601 is plug 701, and the other end is connection terminal 702, the plug end 701 of glue shell 601
Design is matched with the terminal resistance socket of harvester 20, for being inserted in the harvester；Terminal resistance 602 and glue shell
601 connection terminal 702 is crimped；603 sets of heat-shrink tube is rolled in outside terminal resistance 602, for insulation protection.In the utility model reality
Apply in example, the model female end glue shell of glue shell 601, terminal is gold-plated material, selection female end glue shell can with gold-plated material terminal herein
To reach optimum efficiency, but the utility model can not be limited.
Further, in the connection terminal 702 that the utility model embodiment is provided, it is necessary to including bit line (CAN- high
H, CAN High) pin and low-bit line (CAN-L, CAN Low) pin.Wherein, CAN-L pins be used for harvester on
CAN-L lines are connected；CAN-H pins are used to be connected with the CAN-H lines on harvester, access terminal resistance 602 so as to reach
The purpose of CAN.As shown in figure 8, the terminal schematic elevation view of the terminal resistance device provided for the utility model embodiment.
To being expressed as facing, 801 is 1 pin of terminal to A, and 802 is 2 pin of terminal, and 803 is 3 pin of terminal, and 804 is 4 pin of terminal, 805
It is 5 pin of terminal, 806 is 6 pin of terminal.In the utility model embodiment, 1 pin 801 is blue, 24V-；2 pin 802 are palm fibre
Color, 24V+；3 pin 803 are sky；4 pin 804 are screen layer；5 pin 805 are multiple twin red CAN-L；6 pin 806 are multiple twin yellow CAN-
H.The resistance of terminal resistance 602 is 120 ohm.
Used as fourth embodiment of the present utility model, multiple harvesters 20 are accessed with being similar to the series system of " O " font
Onto CAN 10, the complexity of production strand design is reduced, while terminal resistance device 30 has and the phase of harvester 20
The socket of matching, is directly inserted on any one harvester 20, portable can dismantle, and reduces the difficulty of later maintenance.In a word,
The utility model fourth embodiment reduces production wire harness expense, while making operation become simple, reduces people of the prior art
The expense of work welding, comprehensively reduces production cost.
As shown in figure 5, be the harvester schematic diagram in the utility model first embodiment to fourth embodiment, in Fig. 5
Clearly indicate the link position of terminal resistance device 30 and harvester 20.A high position for harvester 20 and CAN 10
Line (CAN-H, CAN High) and low-bit line (CAN-L, CAN Low) are connected, and plug end and the collection of terminal resistance device 30 are filled
20 socket matching correspondence is put, can portable dismounting connection.Not only having on harvester 20 is used to be inserted with terminal resistance device 30
The socket for connecing, while can also include other sockets, each socket apparatus function to be connected is had nothing in common with each other.
It should be noted that the function of BMS40 and harvester 20 in CAN communication is prior art, in order to
Mentality of designing of the present utility model is better understood from, the function to BMS40 and harvester 20 below is carried out simply
Explain, be not used to limit the utility model.Can include multiple batteries on existing CAN communication line, BMS specifically for right
Cell voltage on CAN communication line carries out measurement, battery temperature measurement, balancing energy, heat management and the guarantee battery of precision
Normal work etc. in CAN communication.The function of harvester is mainly collection battery detecting string number, temperature detection points, monomer
Reference voltage detection, communication etc..From the above, it can be seen that the effect of BMS and harvester is provided to ensure in CAN communication
Battery can normal work, battery is managed.BMS is connected with harvester by CAN, and BMS plans as a whole control
Distribution harvester carries out the work such as data acquisition to certain battery cell, and controls harvester to manage the work of respective battery
State.Meanwhile, the battery and communication data of harvester collection can send BMS to by CAN in time, in order to BMS points
Analysis, the work of overall arrangement each battery.
In sum, the CAN bus terminal resistance access system that the utility model is provided, terminal resistance
Device has the socket matched with harvester, can directly be inserted on any one harvester, reduces production wire harness and sets
The complexity of meter, so that the expense reduction of production wire harness, while operation becomes simple, reduces human weld's of the prior art
Expense, comprehensively reduces production cost.In the prior art in order that in CAN wire harness cabling rationally simultaneously reduce wire harness into
This, the link position of terminal resistance must be fixed sometimes, and the position makes signal data transmission unstable.The utility model
The terminal resistance device of design portable can be dismantled, and terminal resistance module can be connected on any harvester makes signal data
Transmission reaches best stabilized state.Meanwhile, because reducing the complexity of production wire harness so that terminal resistance positioning searching side
Just, allow later maintenance more to facilitate, comprehensively reduce human and material resources.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of resistance access system based on CAN bus, it is characterised in that the system includes：Controller
Area Network bus, one or more harvesters and terminal resistance device；
One or more harvesters are accessed on the CAN bus；
Each described harvester is respectively provided with socket, and the socket matches with the plug of the terminal resistance device；
The terminal resistance device, by the plug and any one described harvester on the CAN bus
Socket grafting.
2. the system as claimed in claim 1, it is characterised in that the multiple harvester is in series and/or in parallel
Access on the CAN bus；
The battery that the harvester is used in Management Controller LAN.
3. the system as claimed in claim 1, it is characterised in that the system also includes battery management module；
The battery management module is arranged on the CAN bus, with the harvester by the control
Device Area Network bus are connected, for controlling the harvester to work.
4. the system as claimed in claim 1, it is characterised in that the terminal resistance device includes glue shell；
Described glue shell one end is plug, and one end is connection terminal, the end of the design of the plug end of the glue shell and the harvester
End resistance socket matching.
5. system as claimed in claim 4, it is characterised in that the terminal resistance device also includes terminal resistance and pyrocondensation
Pipe；
The high-order wire pin and general ability processed of the terminal resistance and the CAN bus of the connection terminal of the glue shell
The low level wire pin crimping of domain network-bus；
The shrinkable sleeve is rolled in outside the terminal resistance, for insulation protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621178593.1U CN206294195U (en) | 2016-11-03 | 2016-11-03 | A kind of resistance access system based on CAN bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621178593.1U CN206294195U (en) | 2016-11-03 | 2016-11-03 | A kind of resistance access system based on CAN bus |
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| Publication Number | Publication Date |
|---|---|
| CN206294195U true CN206294195U (en) | 2017-06-30 |
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|---|---|---|---|
| CN201621178593.1U Expired - Fee Related CN206294195U (en) | 2016-11-03 | 2016-11-03 | A kind of resistance access system based on CAN bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730117A (en) * | 2019-11-07 | 2020-01-24 | 三一汽车起重机械有限公司 | Assembled davit and hoist based on CAN bus |
-
2016
- 2016-11-03 CN CN201621178593.1U patent/CN206294195U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730117A (en) * | 2019-11-07 | 2020-01-24 | 三一汽车起重机械有限公司 | Assembled davit and hoist based on CAN bus |
| CN110730117B (en) * | 2019-11-07 | 2022-04-15 | 三一汽车起重机械有限公司 | Assembled davit and hoist based on CAN bus |
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