CN209274531U - CAN network terminal resistance module - Google Patents
CAN network terminal resistance module Download PDFInfo
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- CN209274531U CN209274531U CN201821787661.3U CN201821787661U CN209274531U CN 209274531 U CN209274531 U CN 209274531U CN 201821787661 U CN201821787661 U CN 201821787661U CN 209274531 U CN209274531 U CN 209274531U
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- resistance
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Abstract
The utility model provides a kind of CAN network terminal resistance module.The terminal resistance module of the utility model, comprising: resistance component；Connector, connector have shell, and the inside of shell forms accommodating chamber, and connector has a first end and a second end, and wherein first end is configured to removably attach resistance component, and second end is configured to removably attach cable；And fastening assembly, fastening assembly are fixedly mounted relative to shell and are equipped with fastener to keep terminal resistance module position to fix；Wherein, when resistance component plugs the first end of connector and second end attaches cable, resistance component and the cable electrical communication in accommodating chamber.The terminal resistance module of the utility model realizes the flexible configuration of CAN network terminal resistance.
Description
Technical field
The utility model relates to the technical field of CAN network bus arrangement more particularly to a kind of vehicle CAN network-bus
Terminal resistance arrangement.
Background technique
In-vehicle networking be by bus by automobile various electronic devices and equipment be linked to be a network, realize mutually it
Between information sharing.It not only can simplify system authority, saves connection cables, reduces the sensor of redundancy and corresponding soft or hard
Part configuration；And each system of automobile can be preferably controlled and coordinate, improve each control system reliability of operation；Also
The resource-sharing between each subsystem may be implemented, be more advantageous to the on-line fault diagnosis concentrated and realize each subsystem.
CAN bus is a kind of serial data communications busses, can effectively support the distribution with very high safety grade real
When control system, be construct In-vehicle networking basis.At present in In-vehicle networking mainly use 2 seed types CAN: one is with
In the high-speed CAN of power system communications and control, rate reaches 500kb/s, and it is single to be mainly directed towards the higher control of requirement of real-time
Member, such as engine, motor.Another kind communicates the low speed CAN with control for bodywork system, and rate is 100kb/s.Mainly
The situation not high for requirement of real-time, such as the acquisition and feedback of car light, car door, vehicle window, car phone signal.
In high-frequency range, in signals transmission, signal along the place reached, signal wire and reference planes (power supply or
Ground level) between due to electric field foundation, an immediate current can be generated, if transmission line is isotropic, if letter
It number is transmitting, just there is an electric current I always, and if the output level of signal is V, in signals transmission, transmission line
Will be equivalent at a resistance, size V/I calls this equivalent resistance the characteristic impedance Z of transmission line.Characteristic impedance is
Influence the factor of signal quality finally wanted.
If moment impedance is equal everywhere in signal wire, signal can be propagated smoothly forward in transmission process.
If characteristic impedance difference (open circuit/open circuit/impedance mismatch etc.) everywhere in transmission line, a part of signal energy will
It is reflected in the place of impedance variations, and is likely to form concussion, to destroy the continuity of signal.In idling slow speed system, by
In having enough time so that signal settles out before it may cause false triggering, so not having serious consequence；In high speed
In system, due to may not have enough time so that signal settles out before it may cause false triggering, transmission line will be generated
Integrity issue, lead to serious consequence, therefore it is required that two terminals in high-speed CAN bus need to respectively plus one is special with transmission line
The terminal resistance in property identical 120 Europe of impedance, submodule do not need terminal resistance.As shown in Figure 1, the 120 Europe terminal resistance 1 is solid
It is scheduled on specific 2 the inside of terminal module circuit board of vehicle, terminal resistance 1 passes through the pin (not shown) and CAN on terminal node
Bus termination is attached, and CAN bus terminal has female connector (not shown), and terminal resistance is inserted into mother's connector by pin
To realize the connection with CAN bus terminal.
In addition, the mode of another traditional arrangement vehicle-mounted CAN bus termination resistance is that terminal resistance centralized arrangement exists
Inside instrument cabin fuse box, although this method is avoided the shortcomings that arranging terminal resistance on terminal module, but generate again
New disadvantage: the instrument cabin fuse box of general bicycle only one, position is very fixed, the startings of two terminal resistances and
End all concentrate on instrument cabin fuse box, coiling is inevitable, and total wire length is artificially increased, increase harness at
Sheet and harness total weight.
Utility model content
To solve the problems, such as to exist in CAN bus network terminal resistance configuration in the prior art, the utility model provides one
Kind terminal resistance module, comprising: resistance component；Connector, connector have shell, and the inside of shell forms accommodating chamber, patches
Part has a first end and a second end, and wherein first end is configured to removably attach resistance component, and second end is configured to detachably
Ground attaches cable；And fastening assembly, fastening assembly are fixedly mounted relative to shell and are equipped with fastener to keep terminal electric
Resistance module position is fixed；Wherein, when resistance component plugs the first end of connector and second end attaches cable, resistance component
With cable in accommodating chamber electrical communication.
One aspect according to the present utility model, the fastener of fastening assembly include band and clamping block, and fastening assembly is also
Including link block, clamping block is fixed on link block.
The outside of one aspect according to the present utility model, the shell of connector is equipped with sliding slot, and link block is slideably pacified
It is attached in sliding slot.
Another aspect according to the present utility model, the outside of the shell of connector and link block are equipped with matched locking machine
Structure, locking mechanism include the barb being mutually matched and barb slot, and barb and barb slot are separately positioned on outside and the connection of shell
On block.
Another aspect according to the present utility model, resistance component include resistance, two pins for being connected to resistance both ends
And insulating body, resistance, two pins each end be maintained in insulating body, the other end of two pins
Portion stretches out insulating body.
Preferably, resistance component is completely contained in the receiving portion of connector.
Another aspect according to the present utility model is set in the accommodating chamber of shell there are two engaging slot, and resistance component draws
Foot is bonded in engaging slot.
Preferably, being respectively equipped with barb and the back-off of mutually locking on engaging slot and pin.
Another aspect according to the present utility model, the shell are equipped with the pressure for being pressed into accommodating chamber from the exterior of housing
The end of block, cable is fixed in the connector by briquetting.
The utility model provides a kind of modular terminal resistance installation settling mode, and terminal resistance module is vehicle net
Network configuration brings significant flexibility.In vehicle network topology structure, using terminal resistance mould according to the present utility model
Block can require arbitrary functional module to be all used as child node, unify the design specification of module end, avoid the latent of circuit board
In change in design.
In addition, it is particularly advantageous that, terminal resistance module all uses band connection type to be arranged in harness or other component
On, in this way, can just install this terminal resistance module in any position of vehicle.
Fastening assembly and contact in terminal resistance module according to the present utility model are independent two components, they
It is mounted to each other in use, this also further increases the flexibility of installation.
The resistance component of blade inserting is used in the terminal resistance module of the utility model, therefore, resistance component need to only lead to
Crossing insertion can complete to install, and the replacement of resistance component is also very convenient.
Detailed description of the invention
In order to which the utility model is more understood completely, it can refer to and be considered in conjunction with the accompanying the described below of exemplary embodiment,
In attached drawing:
Fig. 1 shows the schematic diagram of the CAN network system in the prior art for being provided with terminal resistance.
Fig. 2A and Fig. 2 B respectively illustrates the different angle of the resistive module of a preferred embodiment according to the present utility model
Perspective view.
Fig. 3 shows the solid using the resistance component in the resistive module of a preferred embodiment according to the present utility model
Figure.
Fig. 4 is shown using the vertical of the band component in the resistive module of a preferred embodiment according to the present utility model
Body figure.
Fig. 5 A shows the perspective view of the unassembled state of the resistive module of a preferred embodiment according to the present utility model.
Fig. 5 B shows the perspective view after the assembling of the resistive module of a preferred embodiment according to the present utility model.
Fig. 6 is the signal using the CAN network system of CAN network bus termination resistive module according to the present utility model
Figure.
Reference signs list
1 terminal resistance
10 terminal resistance modules
20 resistance components
21 pins
22 insulating bodies
23 apertures
30 connectors
31 open ends
32 open ends
33 engaging slots
35 briquettings
36 shells
37 sliding slots
38 barb slots
40 fastening assemblies
41 bands
42 clamping blocks
43 link blocks
45 slits
48 barbs
50 cables
Specific embodiment
The utility model is described in further detail with attached drawing combined with specific embodiments below, elaborates in the following description
More details are in order to fully understand the utility model, but the utility model obviously can be different from what this was described with a variety of
Other way is implemented, and those skilled in the art can be without prejudice to the utility model connotation according to practical application feelings
Condition makees similar popularization, deduces, therefore should not limit the protection scope of the utility model with the content of this specific embodiment.
In automobile manufacturing field, various Considerations, terminal node and child node in vehicle network topology structure are integrated
It is frequently necessary to mutually convert.To keep enough flexibilities, terminal node and child node terminal module circuit board often all do not have
Design terminal resistance, to need to be equipped with terminal resistance in harness.It is total that Fig. 6 schematically shows such a vehicle-mounted CAN
Gauze network, it is total that terminal resistance in the CAN bus network by terminal resistance module 10 according to the present utility model is mounted on CAN
On gauze network.
Fig. 5 A and Fig. 5 B show the terminal resistance module 10 according to one preferred embodiment of the utility model, and wherein Fig. 5 A shows
Go out the unassembled state of terminal resistance module 10, and Fig. 5 B shows the assembled state of terminal resistance module 10.Terminal resistance
10 main body of module includes three parts: resistance component 20, connector 30 and fastening assembly 40.Connector 30 has shell 36, shell
Form accommodating chamber inside body 36, the end of the cable 50 of resistance component 20 and CAN bus network be in contact with each other in accommodating chamber and
Realize electrical connection.Fastening assembly 40 is then fixed for the position of terminal resistance module 10, especially, is suitable for terminal resistance module
10 are fixed to the vehicle interior of configuration CAN bus network.
A preferred embodiment according to the present utility model, as shown in Figure 2 A and 2 B, the shell of terminal resistance module 10
36 outer profiles being integrally rectangle, the cross section close to the cuboid profile of the side of cable 50 is smaller, and the other side is attached
The cross section of the cuboid profile of resistance component 20 is larger, and a stage portion is formed among the profile of different cross section size.Shell 36
It can be integrally molded using resin material.In order to be adapted to the use environment in vehicle, preferably, shell 36 can be used it is resistance to
The resin material of heat is made.
There are two open ends 31 and 32 for the tool of connector 30 of terminal resistance module 10, in the preferred embodiment, open end 31
Be with 32 it is opposite, one of open end 31 is configured to removably attach resistance component 20, and another 32 structure of open end
Cause the end for the cable 50 for removably attaching CAN bus network.It should be understood that in other alternate embodiments, open end 31
It is not limited to be oppositely arranged with 32, such as also can be set on two sides that shell 36 intersects with each other.
As shown in Figure 2 A, the end of the cable 50 of CAN bus network is fixed by briquetting 35.Briquetting 35 was arranged to from end
It holds in the external one side insertion accommodating chamber of resistive module 10, the cable 50 being inserted into from the second open end 32 is crimped, to make line
The end of cable 50 is fixed relative to connector 30.Cable 50 can such as pass through the open end 31 of Fig. 2 B after fixed by briquetting 35
It observes, the core wire for being crimped on the end of the cable 50 in accommodating chamber exposes, to be electrically connected with resistance component 20.
In other alternate embodiments, the setting position of briquetting 35 is not limited to position shown in Fig. 2A, can also be outside other
The insertion of portion side, the part alternatively, open end of the end of 30 connection cables 50 of connector is fixed can be in advance by the end of cable 50
Portion is inserted into the part that is fixed, and then, the part that will be fixed is fixed on the open end of connector 30.
Fig. 3 shows the resistance section being adapted to mount in the terminal resistance module 10 according to the utility model preferred embodiment
The perspective view of part 20.Preferably, the resistance of 120 Europe MINI fuse structures can be used in resistance component 20.Specifically, the resistance
Component 20 is in blade inserting structure on the whole, which connect convenient for resistance component 20 with connector 30.
Specifically, resistance component 20 includes with being usually the resistance in 120 Europe, be electrically connected to two of resistance both ends
Pin 21 and insulating body 22.Resistance, two pins 21 each end be maintained in insulating body 22, two
The other end of pin 21 stretches out insulating body 22.The pin 21 of resistance component 20 in the form of sheets, preferably has tapered
Resistance component 20 is inserted into order to guide in distal end.In Fig. 3 it can further be seen that insulating body 22 it is opposite with pin 21 set there are two
Aperture 23, they are arranged for positioning and fixing metal pins 21.
Adaptedly, as shown in Figure 2 B, engaging slot 33 is formed in the accommodating chamber of connector 30.Engaging slot 33 is preferably
It is configured to the engaging diminishing skewed slot form in space.In this way, when resistance component 20 is inserted into connector 30, engaging slot 33 and electricity
The interaction of pin 21 of resistance part part 20 generates clamping force to fix pin 21.Further, in order to ensure 21 He of pin
Locking between engaging slot 33 can open up back-off (not shown) on engaging slot 33, and offered on pin 21 it is corresponding fall
Hook (not shown) can be realized strength and lock, so that resistance in this way when pin 21 is inserted into connector 30 between back-off and barb
Component and the reliability of cable electrical communication greatly increase.
Preferentially, resistance component 20 is completely contained in the receiving portion of 30 shell 36 of connector formation after installing, i.e., electric
The pin 21 and insulating body 22 of resistance part part 20 do not expose from the open end of connector 30.
Specifically for the installation environment for adapting to vehicle, the fastener of fastening assembly 40 is preferably configured to can be by entire terminal
Resistive module 10 is fixed to the ring-band shape fastener on harness.As shown in figure 4, in the preferred embodiment, fastening assembly 40 includes
The fastener of 41 form of band and link block 43 for being connected to band 41 on connector 30.Band 41 can be automobile
The form of common band in production field, fastener further include the clamping block 42 for one end of locking band 41.It is using
When, band 41 is inserted into the slit 45 opened up in clamping block 42, realizes being locked for band 41 using pawl.
Since fastening assembly 40 includes band 41, terminal resistance module 10 is fastened neighbouring in which can be convenient
On harness, solves the problems, such as fixed terminal resistive module 10 in any position, to realize the spirit of terminal resistance module 10
Activity configuration.
In other alternate embodiments, the ring-band shape component that band 41 can also be suitable for fixing around harness with other is substituted,
Such as clip etc..
In a preferred embodiment, connector 30 and fastening assembly 40 are linked together by shiding matching structure.Specifically
Ground, it is and as shown in Figure 2 B as shown in figure 4, fastening assembly 40 is equipped with link block 43, be equipped with outside the shell 36 of connector 30 with it is tight
Gu the T-type sliding slot 37 that the link block 43 of component 40 is slidably engaged.Meanwhile the shell 36 of connector 30 outside and link block 43 set
There is matched locking mechanism, locking mechanism includes the barb 48 and barb slot 38 being mutually matched, and barb 48 and barb slot 38 are distinguished
It is arranged on the outside and link block 43 of shell 36.As shown in Fig. 2 B and Fig. 4, in a preferred embodiment, on connector 30
Equipped with barb slot, and fastening assembly 40 is equipped with barb.
In other alternate embodiments, it is also contemplated that the shape snap-in structure of other substitutions.It need to understand ground, be used in vehicle etc.
In environment, vibration is inevitable, and therefore, the locking mechanism between connector 30 and fastening assembly 40 is advantageously configured to have
There is the intensity for being enough to resist conventional operation vibration, is disengaged to avoid locked component when vehicle operation relative to connector 30.
Hereinafter, in conjunction with Fig. 5 A and Fig. 5 B to resistive module according to the present utility model installing and using in the car
It is bright.
It is in suitable node that 50 access terminal of both threads cable of CAN bus is electric according to the configuration requirement of vehicle CAN network
In the connector 30 for hindering module 10, the end of cable 50 is fixed using briquetting 35；Then resistance component 20 is inserted into connector
30 open end 31 simultaneously is allowed to be locked in the inside of the accommodating chamber of connector 30；Then, fastening assembly 40 is fixed to described connect
The outside of the shell 36 of plug-in unit 30.By means of band 41, by entire terminal resistance module be fixed to harness in vehicle or
In the other structures of vehicle interior.
It is to be understood that the order of above-mentioned installation steps need not be fixed and invariable, first fastening assembly 30 can also be consolidated
Determine onto the other structures of harness or vehicle interior, will then insert connector 30 and the fastening of cable 50 and resistance component 20
Component 40 is assembled together.
The utility model provides a kind of modular terminal resistance installation settling mode, and terminal resistance module is vehicle net
Network configuration brings significant flexibility.In vehicle network topology structure, when using terminal resistance according to the present utility model
Module can require arbitrary functional module as child node, unify the design specification of module end, avoid the latent of circuit board
In change in design.
In addition, it is particularly advantageous that, terminal resistance module using band as the fastener on fastening assembly, with facilitate by
Module is maintained on the other component of harness or vehicle interior, in this way, installation can be facilitated this in any position of vehicle
Terminal resistance module.
Fastening assembly and contact in terminal resistance module according to the present utility model are independent two components, they
It is mounted to each other in use, which increases the flexibilities of installation.
The resistance component of blade inserting is used in the terminal resistance module of the utility model, therefore, resistance component need to only lead to
Crossing insertion can complete to install, and the replacement of resistance component is also very convenient.
Meanwhile resistance component preferably can be set into metal pins and insulating body being entirely accommodated in connector
In accommodating chamber, it may be implemented to protect resistance component thoroughly in this way.
Although the utility model is disclosed as above with preferred embodiment, its be not for limiting the utility model, it is any
Those skilled in the art without departing from the spirit and scope of the utility model, can make possible variation and modification.Cause
This, all contents without departing from technical solutions of the utility model, according to the technical essence of the utility model to above embodiments institute
Any modification, equivalent variations and the modification made, each fall within the protection scope that the utility model claims are defined.
Claims (9)
1. a kind of terminal resistance module (10), comprising:
Resistance component (20)；
Connector (30), the connector (30) have shell (36), and the inside of the shell (36) forms accommodating chamber, described to connect
Plug-in unit (30) has first end (31) and second end (32), wherein the first end (31) is configured to removably attach the electricity
Resistance part part (20), the second end (32) are configured to removably attach cable (50)；And
Fastening assembly (40), the fastening assembly (40) relative to the shell (36) be fixedly mounted, and be equipped with fastener with
Terminal resistance module (10) position is kept to fix；
Wherein, when the resistance component (20) plugs the first end (31) of the connector (30) and the second end
(32) when attaching the cable (50), the resistance component (20) and the cable (50) electrical communication in the accommodating chamber.
2. terminal resistance module (10) as described in claim 1, which is characterized in that the fastener packet of the fastening assembly (40)
Band (41) and clamping block (42) are included, the fastening assembly (40) further includes link block (43), and the clamping block (42) is fixed on
On the link block (43).
3. terminal resistance module (10) as claimed in claim 2, which is characterized in that the shell of the connector (30)
(36) outside is equipped with sliding slot (37), and the link block (43) is slideably mounted in the sliding slot (37).
4. terminal resistance module (10) as claimed in claim 3, which is characterized in that the shell of the connector (30)
(36) outside and the link block (43) are equipped with matched locking mechanism, the locking mechanism include the barb being mutually matched and
Barb slot, the barb and barb slot are separately positioned on the outside and the link block (43) of the shell (36).
5. terminal resistance module (10) as described in claim 1, which is characterized in that the resistance component (20) include resistance,
It is connected to two pins (21) and the insulating body (22) at the resistance both ends, the resistance, described two pins (21)
The end of each is maintained in the insulating body (22), and the other end of described two pins (21) stretches out institute
State insulating body (22).
6. terminal resistance module (10) as claimed in claim 1 or 5, which is characterized in that the resistance component (20) is wrapped completely
It is contained in the receiving portion of the connector (30).
7. terminal resistance module (10) as claimed in claim 5, which is characterized in that in the accommodating chamber of the shell (36)
If there are two engaging slot (33), the pin (21) of the resistance component (20) is bonded in the engaging slot (33).
8. terminal resistance module (10) as claimed in claim 7, which is characterized in that the engaging slot (33) and the pin
(21) barb and the back-off of mutually locking are respectively equipped on.
9. terminal resistance module (10) as described in claim 1, which is characterized in that the shell (36) is equipped with from the shell
The external briquetting (35) for being pressed into the accommodating chamber of body (36), the end of the cable (50) are fixed on described by briquetting (35)
In connector (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821787661.3U CN209274531U (en) | 2018-10-31 | 2018-10-31 | CAN network terminal resistance module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821787661.3U CN209274531U (en) | 2018-10-31 | 2018-10-31 | CAN network terminal resistance module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209274531U true CN209274531U (en) | 2019-08-20 |
Family
ID=67600001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821787661.3U Active CN209274531U (en) | 2018-10-31 | 2018-10-31 | CAN network terminal resistance module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209274531U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435560A (en) * | 2018-10-31 | 2019-11-12 | 安波福电气系统有限公司 | CAN network terminal resistance module and its installation method |
| 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 |
| KR20230045476A (en) * | 2021-09-28 | 2023-04-04 | 주식회사 경신 | Connector joint type band-cable |
-
2018
- 2018-10-31 CN CN201821787661.3U patent/CN209274531U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435560A (en) * | 2018-10-31 | 2019-11-12 | 安波福电气系统有限公司 | CAN network terminal resistance module and its installation method |
| 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 |
| KR20230045476A (en) * | 2021-09-28 | 2023-04-04 | 주식회사 경신 | Connector joint type band-cable |
| KR102552373B1 (en) | 2021-09-28 | 2023-07-06 | 주식회사 경신 | Connector joint type band-cable |
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