CN215576275U - Safety airbag control unit test protection device and test protection system - Google Patents
Safety airbag control unit test protection device and test protection system Download PDFInfo
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- CN215576275U CN215576275U CN202121991184.4U CN202121991184U CN215576275U CN 215576275 U CN215576275 U CN 215576275U CN 202121991184 U CN202121991184 U CN 202121991184U CN 215576275 U CN215576275 U CN 215576275U
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- 238000012360 testing method Methods 0.000 title claims abstract description 66
- 238000009413 insulation Methods 0.000 claims description 4
- 239000013256 coordination polymer Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model discloses a test protection device and a test protection system for an air bag control unit, wherein a PCB (printed Circuit Board) adapter box and a variable chip resistor are arranged, an air bag loop is arranged in the PCB adapter box, the variable chip resistor is connected with the air bag loop, and the air bag loop is connected with the air bag control unit through a first wiring harness to form a test loop; insulating casing has accommodating space, accommodating space one side has first opening, accommodating space accepts PCB switching box and variable chip resistor for when carrying out air bag the control unit test, insulating casing can protect variable chip resistor with the air bag return circuit reduces variable chip resistor with the possibility of air bag return circuit and automobile body metalwork contact, thereby reduces the risk of test circuit short circuit, has improved the security, but wide application in automotive technical field.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to a test protection device and a test protection system for an air bag control unit.
Background
Nowadays, passenger vehicles are required to be equipped with an event data recording system (EDR) capable of recording data information such as vehicle running speed, braking state and the like when a specific event such as collision occurs, and for example, data such as longitudinal Delta-V, maximum recorded longitudinal Delta-V, time to reach maximum recorded longitudinal Delta-V, service brake on or off (or brake pedal position), vehicle speed and vehicle identification code need to be recorded through an airbag control UNIT (SRS UNIT). When the recording effect of the data is tested, the airbag control UNIT (SRS UNIT) needs to be knocked or swiped quickly, so as to trigger the recording of the recorded data. The test equipment used by the existing test method is usually exposed in the external environment, so that the test equipment is easy to contact with a vehicle body metal part to cause a short circuit of a test circuit and cause a fire risk, and the safety is low, so that a solution is required to be found.
SUMMERY OF THE UTILITY MODEL
To solve the above technical problems, the present invention aims to: provided are an airbag control unit test protection device and a test protection system which improve safety.
The technical scheme adopted by the utility model is as follows:
an airbag control unit test protection device comprising:
the testing device comprises a PCB (printed Circuit Board) adapter box and a variable chip resistor, wherein an air bag loop is arranged in the PCB adapter box, the variable chip resistor is connected with the air bag loop, and the air bag loop is used for being connected with an air bag control unit through a first wiring harness to form a testing loop;
the insulation shell is provided with an accommodating space, one side of the accommodating space is provided with a first opening, the accommodating space accommodates the PCB adapter box and the variable chip resistor, and the first opening is used for the first wiring harness to pass through.
Further, the other side of the accommodating space is provided with a second opening, the second opening is used for a second wire harness to pass through, and the second wire harness is used for connecting the safety air bag circuit and a vehicle body side wire harness of an automobile.
Further, the PCB adapter box is provided with a vehicle body side connector module, and the vehicle body side connector module is connected with the airbag loop and is used for being connected with the vehicle body side wiring harness through the second wiring harness; the vehicle body side connector module is exposed to the second opening.
Further, the insulating housing comprises a first insulating part and a second insulating part, and the first insulating part and the second insulating part cover to form the accommodating space; the first opening is provided in the first insulating portion or the second insulating portion.
Further, the first insulating part is provided with at least one first fixing part, the second insulating part is provided with at least one second fixing part, and the first fixing part and the second fixing part are fixed through a fixing part.
Further, the first fixing portion is disposed outside the first insulating portion, the first fixing portion has a groove and at least one first fixing hole, and the first fixing hole is disposed in the groove; the second fixing part is located in the accommodating space and is provided with at least one second fixing hole, and the first fixing hole and the second fixing hole are correspondingly arranged.
Further, the other side of the accommodating space is provided with a second opening, the first opening is arranged on the first insulating part, and the second opening is arranged on the second insulating part.
Further, the PCB adapter box is provided with a first connector module, the first connector module is connected with the safety airbag loop, and the first connector module is connected with a safety airbag control unit through the first wiring harness; the first connector module is exposed to the first opening.
The embodiment of the utility model also provides a test protection system which comprises the safety air bag control unit test protection device and a fixing piece.
The embodiment of the utility model also provides a test protection system which comprises the safety air bag control unit test protection device and the safety air bag control unit.
The utility model has the beneficial effects that: the safety airbag testing device is characterized in that a PCB (printed circuit board) adapter box and a variable chip resistor are arranged, an air bag loop is arranged in the PCB adapter box, the variable chip resistor is connected with the air bag loop, and the air bag loop is connected with an air bag control unit through a first wiring harness to form a testing loop; the insulation shell is provided with an accommodating space, one side of the accommodating space is provided with a first opening, and the accommodating space accommodates the PCB adapter box and the variable chip resistor, so that when the safety airbag control unit is tested, the insulation shell can protect the variable chip resistor and the safety airbag loop, the possibility that the variable chip resistor is contacted with the safety airbag loop and a vehicle body metal piece is reduced, the risk of short circuit of the test loop is reduced, and the safety is improved.
Drawings
FIG. 1 is a schematic perspective view of an airbag control unit test protection apparatus of the present invention;
FIG. 2 is a schematic view of FIG. 1 after installation is complete;
fig. 3 is an electronic block diagram of an airbag control unit test protection device according to the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," and the like in the description and claims of this application and in the drawings are used solely to distinguish one from another and are not used to describe a particular sequence. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The utility model will be further explained and explained with reference to the drawings and the embodiments in the description.
As shown in fig. 1, 2 and 3, an embodiment of the present invention provides an airbag control unit test protection device, which includes an insulating housing (including a first insulating portion 1 and a second insulating portion 2), a test device 3, a second connector module and a third connection module.
As shown in fig. 1 and 3, in the embodiment of the present invention, the testing device 3 includes a PCB adapter box and a variable chip resistor, an airbag loop is disposed in the PCB adapter box, the variable chip resistor is connected to the airbag loop, and the airbag loop is connected to an airbag control unit through a first wire harness to form a testing loop. It should be noted that the airbag loop refers to a loop in which an airbag is connected to an automobile, and is not described in detail for the existing loop, and the airbag loop can be placed in the PCB adapter box by a tester after analyzing the loop of the whole automobile.
Optionally, the PCB adaptor box is provided with a first connector module and a body side connector module. The vehicle-body-side connector module is connected to the airbag circuit and is configured to be connected to the vehicle-body-side wire harness via the second wire harness (not shown) that is configured to connect the airbag circuit and the vehicle-body-side wire harness of the automobile. In addition, the first connector module is connected to the airbag circuit, and the first connector module is connected to an airbag control unit through the first wire harness. Note that the vehicle-body-side wire harness refers to a wire harness that is originally mounted on an automobile. Optionally, the first connector module includes two first connectors, and in other embodiments, one or more first connectors may be included, which is not described herein again. Likewise, the body-side connector module includes two body-side connectors, and other embodiments may include one or more body-side connectors, which are not described in detail. Alternatively, the airbag circuit, the variable chip resistor, the first connector module, and the body-side connector module may be provided in one PCB (printed circuit board).
In an embodiment of the present invention, the first wire harness is an extension wire harness, the airbag circuit is connected to the airbag control unit (SRS UNI T) through the extension wire harness, and specifically, the airbag circuit is connected to the first connector module, the first connector module is connected to the extension wire harness through the second connector module, and the extension wire harness is connected to the third connector module, so that the extension wire harness is connected to the airbag control unit (SRS UNI T) through the third connector module. Particularly, the extension wire harness is arranged, so that the operations such as whipping and knocking can be conveniently carried out on the safety airbag control unit (SRS UNIT) during testing, and the convenience is improved.
Referring to fig. 3, in an embodiment of the present invention, the second connector module includes two second connectors, and in other embodiments, one or more second connectors may be included; the third connector module includes two third connectors, and in other embodiments, one or more third connectors may be included, which is not described herein again. Specifically, the extension harness has a first connection end, a second connection end, a third connection end and a fourth connection end, each first connector is correspondingly connected with a second connector, one second connector is correspondingly connected with the first connection end of the extension harness, and the other second connector is correspondingly connected with the second connection end of the extension harness; one of the third connectors is connected to the third connection end of the extension harness and the airbag control unit (SRS unit) correspondingly, and the other third connector is connected to the fourth connection end of the extension harness and the airbag control unit (SRS unit) correspondingly.
Alternatively, the first, second and third connectors may be of the type CP 104P 025ML PF/104P (SRS), and the body side connector may be of the type CP 43P 025(0.64) fl LIF (SRS) or CP 57P025(0.64) fr LIF (SRS).
In the embodiment of the utility model, the variable chip resistors are arranged on the PCB adapter box, the variable chip resistors can be one or more, the variable chip resistors are connected with the safety airbag loop, and the safety airbag control unit (SRS UNIT) is connected with the safety airbag loop and the variable chip resistors through the third connector, the extension wire harness, the second connector and the first connector, so that a test loop can be formed, and the safety airbag control unit (SRS UNIT) is tested.
In the embodiment of the utility model, different safety airbags have different resistance values, and the adjustable variable chip resistor is set on the PCB adapter box, so that the simulation requirements of different safety airbags of different vehicle types can be met, and the method is convenient and has strong applicability. In addition, after the connector of the air bag on the automobile is pulled out, for example, after the connection of the automobile body side connector is disconnected, the variable chip resistor is arranged on the PCB adapter box, the air bag is simulated by the resistance value and is connected with the air bag control unit (SRS UNIT) and the air bag loop to form a test loop, so that the air bag control unit (SRS UNIT) can not report faults, specifically: a loop coming out of the air bag control unit (SRS UN I T) returns to the air bag control unit (SRS UNIT) after passing through the variable chip resistor, and the air bag control unit (SRS UN I T) can be considered to be connected with the air bag and cannot report faults due to the fact that the variable chip resistor passes through the air bag control unit (SRS UNIT), so that the testing process can be smoothly carried out.
Alternatively, the variable chip resistance may employ a TMC3K38 series, a TMC3K3R series, a TMC2K2 series, a TMC3K4J series, or a TMC3KJ series.
As shown in fig. 1 and 2, in the embodiment of the present invention, the insulating housing includes a first insulating portion 1 and a second insulating portion 2, and the first insulating portion 1 and the second insulating portion 2 cover an integral receiving space a (each of the first insulating portion 1 and the second insulating portion 2 has a part of the receiving space a). Specifically, one side of the accommodating space a is provided with a first opening 11, and the other side of the accommodating space a is provided with a second opening 21, and it should be noted that the other side refers to any side different from the side provided with the first opening 11. Optionally, the first opening 11 is disposed in the first insulating portion 1 or the second insulating portion 2, and the second opening 21 is disposed in the first insulating portion 1 or the second insulating portion 2, in the embodiment of the present invention, the first opening 11 is disposed in the first insulating portion 1 and located on the left side of the accommodating space a, the second opening 21 is disposed in the second insulating portion 2 and located on the right side of the accommodating space a, and other embodiments are not specifically limited. In the embodiment of the utility model, the accommodating space A is provided with the PCB adapter box and the variable chip resistor, the first opening 11 is arranged corresponding to the first connector module, the first connector module is exposed out of the first opening 11, and the first opening 11 is used for a first wire harness to pass through; the second opening 21 is disposed corresponding to the vehicle body side connector module, the vehicle body side connector module is exposed to the second opening 21, and the second opening 21 is used for the second harness to pass through.
Alternatively, the material of the insulating housing may be plastic, wood, or ordinary glass, etc.
As shown in fig. 1 and 2, optionally, the first insulating portion 1 has at least one first fixing portion 12, the first fixing portion 12 is disposed outside the first insulating portion 1, and the first fixing portion 12 has a groove 121 and at least one first fixing hole (not shown), and the first fixing hole is disposed in the groove 121. The second insulating portion 2 has at least one second fixing portion 22, and the second fixing portion 22 is located in the accommodating space a and has at least one second fixing hole 221. It should be noted that the first fixing hole and the second fixing hole 221 are correspondingly disposed, and the first fixing portion 12 and the second fixing portion 22 are used for fixing through a fixing member B, specifically, the fixing member B enters the first fixing hole and the second fixing hole 221 to fix the first fixing portion 12 and the second fixing portion 22. Alternatively, the number of the first fixing portions 12 corresponds to the number of the second fixing portions 22, and the number of the first fixing holes, the number of the second fixing holes 221, and the number of the fixing members are the same. It should be noted that, in the embodiment of the present invention, the number of the first fixing portions 12 and the second fixing portions 22 is two, the two first fixing portions 12 are respectively disposed at the front side and the rear side of the first insulating portion 1, the two second fixing portions 22 are respectively disposed at the front side and the rear side of the second insulating portion 2, meanwhile, the number of the first fixing holes and the second fixing holes 221 is two, and in other embodiments, the number of the first fixing portions 12, the second fixing portions 22, the first fixing holes and the second fixing holes 221 may be one or more, and may be disposed as needed.
According to the test protection device for the safety airbag control unit, the variable chip resistor is arranged in the PCB adapter box provided with the safety airbag loop, each safety airbag does not need to be disassembled, a large number of working hours for disassembling vehicles are saved, meanwhile, the risk that the safety airbag is omitted to be disassembled to threaten life of testers is avoided, the safety coefficient of testing is increased, and potential safety hazards are reduced; in addition, the resistors with corresponding resistance values do not need to be added to the pulled-down airbag connecting wire harness like the existing scheme, so that the failure reporting of an airbag control unit (SRS UNIT) is prevented, the risk that the added resistors fall off during the test period to influence the test result is avoided, and the test efficiency and the test safety are improved. Moreover, the extension wire harness is arranged, so that the operations such as swinging and knocking on an air bag control unit (SRS UNIT) are facilitated during testing, and the convenience is improved. And the accommodating space A through setting up insulating casing accommodates testing arrangement 3 that contains PCB keysets and variable chip resistor, can reduce the possibility of testing arrangement 3 and automobile body metalwork contact to reduce the risk of test circuit short circuit, and can prevent that testing arrangement 3 from being contaminated, prevent that the tester from by the electronic components fish tail in testing arrangement 3.
The embodiment of the utility model also provides a test protection system which comprises the safety air bag control unit test protection device and a fixing piece B.
The embodiment of the utility model also provides another test protection system, which comprises the safety airbag control unit test protection device and a safety airbag control unit (SRS UNIT).
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (10)
1. An airbag control unit test protection device, comprising:
the testing device comprises a PCB (printed Circuit Board) adapter box and a variable chip resistor, wherein an air bag loop is arranged in the PCB adapter box, the variable chip resistor is connected with the air bag loop, and the air bag loop is used for being connected with an air bag control unit through a first wiring harness to form a testing loop;
the insulation shell is provided with an accommodating space, one side of the accommodating space is provided with a first opening, the accommodating space accommodates the PCB adapter box and the variable chip resistor, and the first opening is used for the first wiring harness to pass through.
2. An airbag control unit test protection device as defined in claim 1 wherein: the other side of the accommodating space is provided with a second opening, the second opening is used for a second wire harness to pass through, and the second wire harness is used for connecting the safety air bag loop and a vehicle body side wire harness of an automobile.
3. An airbag control unit test protection device as defined in claim 2 wherein: the PCB adapter box is provided with a vehicle body side connector module, and the vehicle body side connector module is connected with the safety airbag loop and is used for being connected with the vehicle body side wiring harness through the second wiring harness; the vehicle body side connector module is exposed to the second opening.
4. An airbag control unit test protection device as defined in claim 1 wherein: the insulating shell comprises a first insulating part and a second insulating part, and the first insulating part and the second insulating part cover to form the accommodating space; the first opening is provided in the first insulating portion or the second insulating portion.
5. An airbag control unit test protection device as defined in claim 4 wherein: the first insulating part is provided with at least one first fixing part, the second insulating part is provided with at least one second fixing part, and the first fixing part and the second fixing part are fixed through a fixing part.
6. An airbag control unit test protection device as defined in claim 5 wherein: the first fixing part is arranged on the outer side of the first insulating part and provided with a groove and at least one first fixing hole, and the first fixing hole is arranged in the groove; the second fixing part is located in the accommodating space and is provided with at least one second fixing hole, and the first fixing hole and the second fixing hole are correspondingly arranged.
7. An airbag control unit test protection device as defined in claim 4 wherein: the other side of the accommodating space is provided with a second opening, the first opening is arranged on the first insulating part, and the second opening is arranged on the second insulating part.
8. An airbag control unit test protection device as defined in claim 1 wherein: the PCB adapter box is provided with a first connector module, the first connector module is connected with the safety airbag loop, and the first connector module is connected with a safety airbag control unit through the first wiring harness; the first connector module is exposed to the first opening.
9. A test protection system comprising an airbag control unit test protection device according to any one of claims 1 to 8 and a fixing element.
10. A test protection system comprising an airbag control unit test protection device according to any one of claims 1 to 8 and an airbag control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121991184.4U CN215576275U (en) | 2021-08-23 | 2021-08-23 | Safety airbag control unit test protection device and test protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121991184.4U CN215576275U (en) | 2021-08-23 | 2021-08-23 | Safety airbag control unit test protection device and test protection system |
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| Publication Number | Publication Date |
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| CN215576275U true CN215576275U (en) | 2022-01-18 |
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| CN202121991184.4U Active CN215576275U (en) | 2021-08-23 | 2021-08-23 | Safety airbag control unit test protection device and test protection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942601A (en) * | 2022-05-26 | 2022-08-26 | 中国第一汽车股份有限公司 | Simulation test equipment and method for airbag electronic control system |
-
2021
- 2021-08-23 CN CN202121991184.4U patent/CN215576275U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942601A (en) * | 2022-05-26 | 2022-08-26 | 中国第一汽车股份有限公司 | Simulation test equipment and method for airbag electronic control system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: The road in Whampoa District of Guangzhou City, Guangdong Province, No. 1 510700 Patentee after: GAC Honda Automobile Co., Ltd. Patentee after: Guangzhou Honda Research & Development Co.,Ltd. Address before: Huangpu District guangben road Guangzhou City, Guangdong province 510700 No. 1 Patentee before: GAC Honda Automobile Co., Ltd. Patentee before: Guangzhou Honda Research & Development Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |