CN113859141A - Automobile door wire harness connector and design method thereof - Google Patents
Automobile door wire harness connector and design method thereof Download PDFInfo
- Publication number
- CN113859141A CN113859141A CN202111048801.1A CN202111048801A CN113859141A CN 113859141 A CN113859141 A CN 113859141A CN 202111048801 A CN202111048801 A CN 202111048801A CN 113859141 A CN113859141 A CN 113859141A
- Authority
- CN
- China
- Prior art keywords
- terminal
- connector
- size
- female
- design
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013461 design Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000009826 distribution Methods 0.000 claims abstract description 9
- 238000012938 design process Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 11
- 238000011156 evaluation Methods 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 9
- 230000007613 environmental effect Effects 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000004088 simulation Methods 0.000 claims description 4
- 238000012795 verification Methods 0.000 claims description 4
- 238000010146 3D printing Methods 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
- 238000010230 functional analysis Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 238000007519 figuring Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims 2
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention relates to automobile line connection, in particular to an automobile door wire harness connector and a design method thereof. The invention provides a new design method for the connector, the method optimizes the steps in the design process, further defines the design points, is favorable for improving the design efficiency and meets the requirements of production and customers as soon as possible. The automobile door wire harness connector designed by the method comprises a male end body and a female end body; the male end body is provided with a female end terminal hole area and a movable block, the movable block is provided with a plurality of adjustable female end terminal holes, and the male end body is provided with a fixed structure below the plane of the male end body connector; and the female end body is provided with a male end terminal hole region matched with the female end terminal hole region and the movable block. The automobile door wire harness connector has the advantages of multiple holes, high strength, easiness in assembly and more reasonable distribution.
Description
Technical Field
The invention relates to automobile line connection, in particular to an automobile door wire harness connector and a design method thereof.
Background
At present, the type of automobile door butt joint connector hole sites cannot meet the requirements of design and application, the situation that the connector is clamped and assembled possibly to break or the electric appliance function is unreliable is generally realized by adopting a cantilever structure, at present, many manufacturers develop door connectors and adopt a copying method, and inherit the defects of a copy, because of the lack of foresight, the copy is eliminated quickly along with the development of science and technology and the updating of the technology, the requirements of automobile technical innovation and function increase cannot be met, and the independent development capability and the development and design method are lacked.
CN112703643A discloses a modular door connector, comprising: a female end connector and a male end connector; the female end connector comprises a plurality of female end standard sub-cavities, the space sizes of the female end standard sub-cavities are equal, a fixed baffle plate is arranged between every two adjacent female end standard sub-cavities in the female end standard sub-cavities, and the female end standard sub-cavities are used for installing female end standard functional modules; the male end connector comprises a plurality of male end standard sub-cavities, the space size of the plurality of male end standard sub-cavities is equal to that of the plurality of female end standard sub-cavities, a fixed baffle plate is arranged between two adjacent male end standard sub-cavities in the plurality of male end standard sub-cavities, and the plurality of male end standard sub-cavities are used for installing male end standard functional modules. The installation method of the modular door connector comprises the steps of selecting the modular door connector and a standard functional module of the modular door connector according to the configuration of a vehicle, and then conducting modular matching and installation.
Patent CN 208368877U discloses a car door butting connector, including binding post unit and be used for with the binding post unit is fixed in the fixed unit of connector of automobile body, the binding post unit includes public end body and butt joint in the female end on public end body, and the key lies in, still be equipped with the connector on the public end body and divide the cassette of terminal and fixed this connector branch terminal. According to the automobile door butting connector, the connector sub-terminal and the clamping seat for fixing the connector sub-terminal are additionally arranged, so that the butting connector can be conveniently expanded and increased, the automobile door butting connector does not need to be redesigned, and the development cost is reduced while peripheral parts are not influenced.
This is also an attempt to solve the problem.
Disclosure of Invention
The invention aims to solve the technical problems that the types of the current automobile door butt joint connector hole sites cannot meet the requirements of design and application, and the situations that the connector is clamped and assembled possibly to be broken or the electric appliance function is unreliable are generally realized by adopting a cantilever structure.
The technical scheme of the invention is that the automobile door wire harness connector comprises a male end body and a female end body; the male end body is provided with a female end terminal hole area and a movable block, the movable block is provided with a plurality of adjustable female end terminal holes, and the male end body is provided with a fixed structure below the plane of the male end body connector; and the female end body is provided with a male end terminal hole region matched with the female end terminal hole region and the movable block.
Specifically, female end terminal hole region is equipped with 2 rows female end small terminal holes, is equipped with 3 rows female end signal terminal holes in the middle of 2 rows female end small terminal holes.
Wherein, the movable block is equipped with 1 ~ 3 female end FAKRA (coaxial connector) holes and 3 ~ 5 female end main aspects hole.
Specifically, the female end body is further provided with a lever, and the peripheral surface of the male end body is provided with a guide groove matched with the lever above the plane of the connector.
And the female end body is also provided with a limiting hole for limiting the lever.
Further, the male end body is further provided with a buckle above the plane of the male end body connector.
Preferably, the buckle comprises a left buckle and a right buckle.
Preferably, cantilever reinforcing rib structures are arranged on the left buckle and the right buckle.
Further, the fixing structure comprises a primary locking structure, a secondary locking (TPA) structure, a TPA fixing structure, a needle skew prevention structure (PLR), a PLR fixing structure and a sealing structure.
Specifically, the door butting connector is made of PA66 or/and PBT. PA66 is preferably used in a high-temperature environment, and PBT is preferably used in a high-humidity environment. The auxiliary material ratio of the connector can be adjusted according to subsequent requirements.
Preferably, GF20 or GF30 can be added into the material to increase the strength.
The invention further provides a design method of the automobile door wire harness connector, which comprises the following steps:
s1, analyzing the functional requirements of the electric appliance: figuring out basic functions and extended functions required to be contained by the connector, wherein the basic functions comprise a door and window motor, a door lock motor, a handle, atmosphere and the like, a rearview mirror, a panoramic camera or/and a high-low sound loudspeaker; the expansion function comprises a face recognition camera, an automatic driving camera or/and a rearview mirror camera, and the type of a terminal required preliminarily is obtained through functional analysis;
s2, standard design: aiming at the size, the function, the number of hole sites, the terminal structure, the material, the fixed structure, the strength of the fixed structure, the basic mechanics and the basic electrical performance of the connector, a reference value can be obtained through benchmarking, and the reference value is used as an evaluation reference in the subsequent design process and is not lower than the reference value in the same design;
s3, designing functional requirements: obtaining the number and the specification of corresponding functional hole sites by combining a function definition list, corresponding current, wire diameter of a lead, a fixing structure mode, an assembly mode and environmental requirements, material requirements to be used and the extensible performance of the functions required by the connector;
s4, size design: the method comprises the steps of determining the boundary of a door butting connector, the periphery of the connector and the size of an inner frame of the connector; determining the fitting space size of the male end connector and the female end connector, the fitting space size of the male end connector and the metal plate and the fitting mode;
s5, hole site design: the method comprises the steps of terminal model selection, hole site structure design and terminal distribution;
s6, analyzing the connector temperature field through CAE: rated current is conducted at the ambient temperature of each terminal, the temperature rise and the heat dissipation condition of the terminal are analyzed, and meanwhile, the heat dissipation capacity of the sheath can be improved by changing the material structure;
s7, analyzing the link of the fit size of the male terminal and the female terminal: the position size of a sheath of the male terminal, the position size of a female terminal in the sheath, the position size of the male terminal and the female terminal which are matched with each other and the matching size chain of the connector ensure that the male terminal is normally inserted into the female terminal within the tolerance range and the centering performance of a hole site size link is ensured, and meanwhile, the consistency of the designed size link can be verified through the insertion force of the terminal;
s8, structural design of a peripheral buckle: the matching of the buckle and the metal plate, the over-win amount and the structure (the simply supported beam and the cantilever beam) can be optimized according to the benchmarking reference value;
s9, carrying out sheath stress analysis: analyzing various stresses in the assembling process, obtaining a functional relation formula Y (strength) = f (reinforcing rib parameter) + f (thickness parameter) + f (length parameter) + f (other parameters) + f (interactive parameters) of the cantilever reinforcing rib structure thickness, length and strength of the left buckle and the right buckle through CAE analysis, and obtaining an interactive relation of the reinforcing rib parameter, the buckle thickness parameter, the buckle length parameter, the other parameters and each parameter through the functional relation formula;
s10, sample preparation and verification: evaluating the dimension and the structural appearance through 3D printing or soft modules, providing an evaluation latitude, evaluating, and verifying the basic performance, the electrical performance and the environmental resistance performance which meet the design requirements; the evaluation dimensions include size, appearance, assembly, strength, cost, volume, and distribution.
Specifically, in step S1, the types of terminals preliminarily required are a signal terminal, a small current terminal, a large current terminal, and a high frequency signal terminal.
Further, in step S3, the extended function is made into an active block, and the composition inside the active block is adjustable and can be adjusted according to the extensibility of the function.
Specifically, in step S4, the dimensions include a space dimension, a sheet metal material, a thickness, and a gap.
Preferably, in step S4, the average of the gaps on each side of the sheet metal of the connector is 0.2mm to 0.4 mm.
Specifically, in step S4, the size of the connector inner frame is calculated by the cumulative area according to the space and the number of each type of terminal hole; the calculation companies are as follows: TS = TS1+ TS2+ TS3+ TSx; TS1= (n1 × S1), TS2= (n2 × S2) TS3= (n3 × S3) … … TSx = nx ×; TS: total area of terminal holes; TS1 Total area of class 1 terminal holes; TS2 Total area … … TSx Total area of class 2 terminal holes; n is the number of terminals of the same type; the area of the inner frame of the connector is more than 1.5 times of the total area of the TS terminal holes; the size can be adjusted according to the subsequent hole site arrangement, the temperature field and the structural strength simulation condition.
Specifically, in step S4, the step of assembling may be performed by clipping or lever pushing.
Further, in step S5, the terminal is selected to be the minimum size that meets the requirement according to the function list, the size of the terminal, the terminal crimping section parameter, the number of FAKRAs, the number of large currents, and the number of small currents.
Specifically, in step S5, the hole site structures are designed such that the fixing structures of the terminals according to the minimum hole site size include a primary locking structure, a secondary locking TPA structure, a TPA fixing structure, a skew prevention structure PLR, a PLR fixing structure, and a sealing structure.
Specifically, in step S9, the sheath stress analysis includes the assembling force of the sheath, the assembling force of the terminal, the assembling force of the lever, the locking force of the lever limiting structure, and the force of the snap-fit into the sheet metal.
In step S5, the terminal distribution rule is generally that the long-time power terminals and the short-time power terminals are separated, and the large-current terminals are placed at both ends or the outermost side to contribute to heat dissipation.
At present, the main materials of PA66 and PBT are preferably PA66 in a high-temperature environment, and PBT in a high-humidity environment. The auxiliary material ratio of the connector can be adjusted according to subsequent requirements. For example: the PA66+ GF20 has insufficient strength, and the glass fiber content can be increased to improve the strength of the PA66+ GF 30.
The invention has the beneficial effects that: the invention provides a new design method for the connector, the method optimizes the steps in the design process, further defines the design points, is favorable for improving the design efficiency and meets the requirements of production and customers as soon as possible. The connector which has the advantages of multiple hole sites, high strength, easy assembly and more reasonable distribution is designed by the method; stable in structure, the simple operation, and be favorable to the extended functionality.
Drawings
Figure 1 male end connector rear mechanism
Figure 2 male end connector side structure
FIG. 3 female end connector rear structure
Figure 4 male end connector right end buckle
Internal structure of male end connector in figure 5
Design method of door butting connector in FIG. 6
The labels in the figure are: 1-connector periphery, 2-movable block, 3-female terminal FAKRA hole, 4-female terminal big end hole, 5-female terminal small end hole, 6-female terminal signal hole, 7-connector inner frame, 8-guide groove, 9-right buckle, 10-connector plane, 11-TPA fixing structure, 12-PLR fixing structure, 13-left buckle, 14-lever, 15-male terminal small end hole, 16-male terminal signal terminal hole, 17-limit hole, 18-male terminal big terminal hole, 19-male terminal FAKRA hole, 20-FAKRA connector, 21-buckle, 22-connector boundary, 23-female terminal hole region, 24-male terminal hole region, 25-crooked pin prevention structure, 26-secondary locking structure, 27-sealing structure, 28-primary locking structure, 29-snap cantilever reinforcing rib structure.
Detailed Description
Example design of an automotive door interface of the present invention
The specific process is shown in fig. 1, and comprises the following steps:
analyzing the functional requirements of the electric appliance: the functions that the connector needs to contain, the basic functions: door and window motor, lock motor, handle, atmosphere etc, extended functionality such as rear-view mirror, panoramic camera, high woofer: the human face recognition camera, the automatic driving camera, the rearview mirror camera and the like can preliminarily obtain a required signal terminal, a small current terminal, a large current terminal and 4 high-frequency signal terminals through functional analysis
And (3) standard alignment design: the size, the function, the hole site quantity, the terminal structure, the material, the fixed structure, the strength of the fixed structure, the basic mechanics and the basic electrical performance of the connector can obtain a reference value through the benchmarking, the reference value is used as an evaluation reference in the subsequent design process, and the same design is not lower than the reference value.
Designing functional requirements: the number and the specification of corresponding functional hole sites and the material requirements to be used are obtained by combining a function definition list, corresponding currents, wire diameters of wires, a fixing structure mode, an assembly mode and environmental requirements (vibration, temperature and waterproof requirements), the expansion function can be made into a movable block 2 (shown in figure 2) due to the fact that the connector needs the expandable performance of the function, the composition inside the movable block can be adjusted, the adjustment can be carried out according to the expansibility of the function, for example, the number of the conventional FAKRA structures can be adjusted to 1-3, and the subsequent functional design is met.
The dimensions of the door butting connector boundary 22, namely the mounting space dimension, the sheet metal material, the thickness and the tolerance of the door connector, ensure that the connector plane 10 is attached and different materials are selected according to different requirements of the used position, the current mainstream materials are PA66 and PBT, PA66 is preferably used in a high-temperature environment, and PBT is preferably used in a high-humidity environment. The auxiliary material ratio of the connector can be adjusted according to subsequent requirements. For example: the PA66+ GF20 has insufficient strength, and the glass fiber content can be increased to improve the strength of the PA66+ GF 30.
Determining an assembly mode: direct snap-fit, or lever 14 (as shown in fig. 3), knob style, maximum and minimum assembly space analysis, and subsequent checking of the operating space to determine if there is a gap between them, and the lever structure that is required to mate with guide channel 8 (as shown in fig. 2) to determine insertion in the correct position.
Determining the dimensions of the connector periphery 1: the peripheral size design of the connector (the average value of the maximum clearance of each side of the metal plate is 0.2 mm-0.4 mm) ensures the assembly smoothness.
Connector inner frame 7 size: calculating the accumulated area TS = TS1+ TS2+ TS3+ TSx according to the space and the sum of the number of each type of terminal holes; TS1= (n1 × S1), TS2= (n2 × S2) TS3= (n3 × S3) … … TSx = nx ×; TS: total area of terminal holes; TS1 Total area of class 1 terminal holes; TS2 Total area … … TSx Total area of class 2 terminal holes; n is the number of the terminals of the same type. The area of the inner frame 7 of the connector is required to be larger than 1.5 times of the total area of TS terminal holes, and the optimal size is adjusted according to the subsequent hole position arrangement, temperature field and structural strength simulation conditions.
And (3) terminal model selection design: and calculating the minimum size meeting the requirements according to the function list, the size of the terminal, the terminal crimping section parameter, the FAKRA number, the large current number and the small current number.
Hole site design: the fixing structure of the terminal designed according to the minimum hole site size includes a primary locking structure 28, a secondary locking (TPA) structure 26, a fixing structure 11 of the TPA, a needle skew prevention structure (PLR) 25, a fixing structure 12 of the PLR, and a sealing structure 27.
Distribution of terminals: in general, the long-term power terminal and the short-term power terminal are separated from each other, and the large-current terminal is arranged at both ends or the outermost side to contribute to heat dissipation.
The connector temperature field is analyzed through CAE simulation, rated current is conducted under the environment temperature of each terminal, the temperature rise and the heat dissipation condition of the terminal are analyzed, and meanwhile the heat dissipation capacity of the sheath can be improved through changing the material structure.
And (3) analyzing a fit size link of the male terminal and the female terminal: the proper insertion of the male terminal into the female terminal within the tolerance range is ensured by the position size of the sheath of the male terminal, the position size of the female terminal in the sheath, the position size of the male-female terminal which is matched with the male-female terminal and the matching size chain of the connector (as shown in figure 1). Public end FAKRA hole 19, female end FAKRA hole 3, public end big terminal hole 18, public end small terminal hole 15, public end signal terminal hole 16, female end big terminal hole 4, female end small terminal hole 5, female end signal terminal hole 6 ensure the centering performance of hole site size link, and the uniformity of design size link is verified to accessible terminal insertion force simultaneously.
Structure of peripheral snap 21: the matching, the over-win amount and the structure (a simply supported beam and a cantilever beam) of the left buckle 13 and the right buckle 9 and the metal plate can be optimized according to the benchmarking reference value.
The method comprises the steps of carrying out sheath stress analysis, the assembling force of a sheath, the assembling force of a terminal, the assembling force of a lever 14, the locking force of a lever limiting hole 17, the force (the optimal design, the strength and the root stress) of a buckle for placing a metal plate in the buckle, analyzing various stresses in the assembling process, obtaining cantilever reinforcing rib structures 29 of left and right buckles through CAE analysis, thickness and length functional relational expression, Y (strength) = f (reinforcing rib parameter) + f (thickness parameter) + f (length parameter) + f (other parameters) + f (interactive parameters), and obtaining the reinforcing rib parameters, the buckling degree parameters, the buckle length parameters, other parameters and the interactive relation of each parameter through the functional relational expression.
Manufacturing a sample, evaluating the size and the structural appearance through 3D printing or soft module evaluation, providing an evaluation latitude, and then evaluating to meet the verification of basic performance, electrical performance and environmental resistance performance of design requirements; the evaluation dimensions include size, appearance, assembly, strength, cost, volume, and distribution.
Test verification: basic performance, electrical performance, environmental resistance and comprehensive performance. The basic properties include appearance/size, terminal bending strength, terminal retention, board end pin retention, connector bonding force, connector separation force, unlocking force, clip insertion/separation force, clip fixing structure mechanism strength, sealing property and connector mistake proofing structure; the electrical properties comprise contact resistance, micro-current contact resistance, power-on temperature rise, insulation resistance, high voltage resistance and leakage current; the environmental resistance properties include repeated inter-cut cycles, vibration/mechanical shock, heat resistance, cold and heat shock, temperature/humidity cycling and water resistance.
As shown in fig. 1 to 3, the designed automobile door butt-joint piece comprises a male end body and a female end body; the male end body is provided with a female end terminal hole area 23 and a movable block 2, the movable block 2 is provided with a plurality of adjustable female end terminal holes, and the male end body is provided with a fixed structure below a male end body connector plane 10; and a male terminal hole area 24 matched with the female terminal hole area and the movable block is arranged on the female terminal body. Female terminal hole area is equipped with 2 rows female end small terminal holes 5, is equipped with 3 rows female end signal terminal holes 6 in the middle of 2 rows female end small terminal holes. The movable block 2 is provided with 1-3 female end FAKRA holes 3 and 3-5 female end big end holes 4.
In a preferred embodiment, the female end body is further provided with a lever 14, and the peripheral surface of the male end body is provided with a guide groove 8 which is matched with the lever above the connector plane 10. And the female end body is also provided with a limiting hole 17 for limiting the lever. The male end body is also provided with a buckle above the male end body connector plane 10. The clasp comprises a left clasp 13 and a right clasp 9. Preferably, the left buckle 13 and the right buckle 9 are further provided with a cantilever reinforcing rib structure 29. Preferably, the fixing structures include a primary locking structure 28, a secondary locking TPA structure 26, a TPA fixing structure 11, a needle skew prevention structure PLR 25, a PLR fixing structure 12, and a sealing structure 27. In a preferred embodiment, the door butting connector is made of PA66 or/and PBT. PA66 is preferably used in a high-temperature environment, and PBT is preferably used in a high-humidity environment. The auxiliary material ratio of the connector can be adjusted according to subsequent requirements. Preferably, GF20 or GF30 can be added into the material to increase the strength.
Claims (10)
1. The automobile door wire harness connector comprises a male end body and a female end body; the connector is characterized in that a female terminal hole area (23) and a movable block (2) are arranged on the male end body, a plurality of adjustable female terminal holes are arranged on the movable block (2), and the male end body is provided with a fixed structure below a male end body connector plane (10); and a male terminal hole area (24) matched with the female terminal hole area and the movable block is arranged on the female terminal body.
2. An automotive door harness connector according to claim 1, wherein said female terminal aperture area is provided with 2 rows of female terminal apertures (5), and 3 rows of female signal terminal apertures (6) are provided in the middle of the 2 rows of female terminal apertures.
3. The automotive door harness connector according to claim 1 or 2, wherein the movable block (2) is provided with 1 to 3 female-end FAKRA holes (3) and 3 to 5 female-end large-end holes (4).
4. An automotive door harness connector as claimed in claim 1 wherein said female end body is further provided with a lever (14) and said male end body is provided with a lever engaging guide groove (8) on the periphery thereof above the connector plane (10).
5. An automotive door harness connector as claimed in claim 1, wherein said female end body is further provided with a limiting hole (17) for limiting the lever;
preferably, the male end body is also provided with a buckle above the connector plane (10) of the male end body;
preferably, the buckle comprises a left buckle (13) and a right buckle (9);
preferably, the left buckle (13) and the right buckle (9) are also provided with cantilever reinforcing rib structures (29);
preferably, the fixing structure comprises a primary locking structure (28), a secondary locking TPA structure (26), a fixing structure (11) of TPA, a needle skew prevention structure PLR (25), a fixing structure (12) of PLR and a sealing structure (27);
preferably, the door butting connector is made of PA66 or/and PBT;
preferably, GF20 or GF30 can be added into the material.
6. The design method of the automobile door wire harness connector is characterized by comprising the following steps:
s1, analyzing the functional requirements of the electric appliance: figuring out basic functions and extended functions required to be contained by the connector, wherein the basic functions comprise a door and window motor, a door lock motor, a handle, atmosphere and the like, a rearview mirror, a panoramic camera or/and a high-low sound loudspeaker; the expansion function comprises a face recognition camera, an automatic driving camera or/and a rearview mirror camera, and the type of a terminal required preliminarily is obtained through functional analysis;
s2, standard design: aiming at the size, the function, the number of hole sites, the terminal structure, the material, the fixed structure, the strength of the fixed structure, the basic mechanics and the basic electrical performance of the connector, a reference value can be obtained through benchmarking, and the reference value is used as an evaluation reference in the subsequent design process and is not lower than the reference value in the same design;
s3, designing functional requirements: obtaining the number and the specification of corresponding functional hole sites by combining a function definition list, corresponding current, wire diameter of a lead, a fixing structure mode, an assembly mode and environmental requirements, material requirements to be used and the extensible performance of the functions required by the connector;
s4, size design: the method comprises the steps of determining the boundary of a door butting connector, the periphery of the connector and the size of an inner frame of the connector; the size of the fitting space of the male end connector and the female end connector, the size of the fitting space of the male end connector and the metal plate and the fitting mode are also included;
s5, hole site design: the method comprises the steps of terminal model selection, hole site structure design and terminal distribution;
s6, analyzing the connector temperature field through CAE: rated current is conducted at the ambient temperature of each terminal, the temperature rise and the heat dissipation condition of the terminal are analyzed, and meanwhile, the heat dissipation capacity of the sheath can be improved by changing the material structure;
s7, analyzing the link of the fit size of the male terminal and the female terminal: the position size of a sheath of the male terminal, the position size of a female terminal in the sheath, the position size of the male terminal and the female terminal which are matched with each other and the matching size chain of the connector ensure that the male terminal is normally inserted into the female terminal within the tolerance range and the centering performance of a hole site size link is ensured, and meanwhile, the consistency of the designed size link can be verified through the insertion force of the terminal;
s8, structural design of a peripheral buckle: the matching of the buckle and the metal plate, the over-win amount and the structure (the simply supported beam and the cantilever beam) can be optimized according to the benchmarking reference value;
s9, carrying out sheath stress analysis: analyzing various stresses in the assembling process, obtaining a functional relation formula Y (strength) = f (reinforcing rib parameter) + f (thickness parameter) + f (length parameter) + f (other parameters) + f (interaction parameter) of the thickness, the length and the strength of the cantilever reinforcing rib structure (29) of the left buckle and the right buckle through CAE analysis, and obtaining an interaction relation of the reinforcing rib parameter, the buckling degree parameter, the buckling length parameter, the other parameters and each parameter through the functional relation formula;
s10, sample preparation and verification: evaluating the dimension and the structural appearance through 3D printing or soft modules, providing an evaluation latitude, evaluating, and verifying the basic performance, the electrical performance and the environmental resistance performance which meet the design requirements; the evaluation dimensions include size, appearance, assembly, strength, cost, volume, and distribution.
7. The method according to claim 6, wherein in step S1, the preliminarily required kinds of terminals are signal terminals, low current terminals, high current terminals and high frequency signal terminals;
preferably, in step S3, the extended function is made into an active block, and the composition inside the active block is adjustable and can be adjusted according to the extensibility of the function.
8. The method of claim 6, wherein in step S4, the dimensions include dimensional space, sheet metal material, clearance, and tolerances;
preferably, in step S4, the average of the gaps on each side of the sheet metal of the connector is between 0.2mm and 0.4 mm;
preferably, in step S4, the size of the connector inner frame is calculated by calculating the cumulative area according to the space and the number of each type of terminal holes; the calculation companies are as follows: TS = TS1+ TS2+ TS3+ TSx; TS1= (n1 × S1), TS2= (n2 × S2) TS3= (n3 × S3) … … TSx = nx ×; TS: total area of terminal holes; TS1 Total area of class 1 terminal holes; TS2 Total area … … TSx Total area of class 2 terminal holes; n is the number of terminals of the same type; the area of the inner frame of the connector is more than 1.5 times of the total area of the TS terminal holes; the size can be adjusted according to the subsequent hole site arrangement, the temperature field and the structural strength simulation condition;
preferably, in step S4, the step of assembling may be performed by a snap or a lever push-pull.
9. The method according to claim 6, wherein in step S5, the terminal is selected as a minimum size for meeting the requirement according to the function list, the size of the terminal, the terminal crimping section parameter, the number of FAKRAs, the number of large currents, and the number of small currents;
preferably, in step S5, the fixing structure according to the minimum hole site size design of the hole site structure design comprises a primary locking structure (28), a secondary locking structure (26), a TPA fixing structure (11), a skew prevention structure (25), a PLR fixing structure (12), and a sealing structure (27).
10. The method of claim 6, wherein in step S9, the sheath stress analysis includes a sheath assembling force, a terminal assembling force, a lever stopper locking force, and a snap-in sheet metal force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111048801.1A CN113859141B (en) | 2021-09-08 | 2021-09-08 | Automobile door harness connector and design method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111048801.1A CN113859141B (en) | 2021-09-08 | 2021-09-08 | Automobile door harness connector and design method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113859141A true CN113859141A (en) | 2021-12-31 |
| CN113859141B CN113859141B (en) | 2024-01-12 |
Family
ID=78994837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111048801.1A Active CN113859141B (en) | 2021-09-08 | 2021-09-08 | Automobile door harness connector and design method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113859141B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017162A (en) * | 1990-04-09 | 1991-05-21 | Molex Incorporated | Electrical connector with terminal alignment and position assurance component |
| KR20030081675A (en) * | 2002-04-12 | 2003-10-22 | 현대자동차주식회사 | System for designing wiring harness using database for vehicle and method for the same |
| US20070134957A1 (en) * | 2005-11-25 | 2007-06-14 | Yazaki Corporation | Lever fitting-type connector |
| CN202534902U (en) * | 2012-03-08 | 2012-11-14 | 深圳市速联连接器有限公司 | Multi-port radio frequency connector |
| US20150363512A1 (en) * | 2014-06-11 | 2015-12-17 | Cheng Uei Precision Industry Co., Ltd. | System and method for optimizing connector design |
| CN108528367A (en) * | 2018-06-29 | 2018-09-14 | 安徽江淮汽车集团股份有限公司 | Wire bundle plug-in connector |
| CN109063381A (en) * | 2018-09-14 | 2018-12-21 | 湖北汽车工业学院 | A kind of automotive wire bundle process design method and system based on CAD platform |
| CN208368877U (en) * | 2018-06-15 | 2019-01-11 | 奇瑞汽车股份有限公司 | A kind of arrangements for automotive doors docking connector |
| CN209921223U (en) * | 2019-04-30 | 2020-01-10 | 重庆长安汽车股份有限公司 | Interior wiring harness butt-joint structure of car A post |
| CN112615210A (en) * | 2020-12-23 | 2021-04-06 | 上海昆文连接器系统有限公司 | Automobile connector fixing and locking structure and using method |
-
2021
- 2021-09-08 CN CN202111048801.1A patent/CN113859141B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017162A (en) * | 1990-04-09 | 1991-05-21 | Molex Incorporated | Electrical connector with terminal alignment and position assurance component |
| KR20030081675A (en) * | 2002-04-12 | 2003-10-22 | 현대자동차주식회사 | System for designing wiring harness using database for vehicle and method for the same |
| US20070134957A1 (en) * | 2005-11-25 | 2007-06-14 | Yazaki Corporation | Lever fitting-type connector |
| CN202534902U (en) * | 2012-03-08 | 2012-11-14 | 深圳市速联连接器有限公司 | Multi-port radio frequency connector |
| US20150363512A1 (en) * | 2014-06-11 | 2015-12-17 | Cheng Uei Precision Industry Co., Ltd. | System and method for optimizing connector design |
| CN208368877U (en) * | 2018-06-15 | 2019-01-11 | 奇瑞汽车股份有限公司 | A kind of arrangements for automotive doors docking connector |
| CN108528367A (en) * | 2018-06-29 | 2018-09-14 | 安徽江淮汽车集团股份有限公司 | Wire bundle plug-in connector |
| CN109063381A (en) * | 2018-09-14 | 2018-12-21 | 湖北汽车工业学院 | A kind of automotive wire bundle process design method and system based on CAD platform |
| CN209921223U (en) * | 2019-04-30 | 2020-01-10 | 重庆长安汽车股份有限公司 | Interior wiring harness butt-joint structure of car A post |
| CN112615210A (en) * | 2020-12-23 | 2021-04-06 | 上海昆文连接器系统有限公司 | Automobile connector fixing and locking structure and using method |
Non-Patent Citations (2)
| Title |
|---|
| 章剑兵;: "浅析商用车线束插接件的选型设计", 汽车实用技术, no. 03, pages 978 - 982 * |
| 蒋伟芳;何浩;: "QC/T 1067.1―2017标准解读", 汽车零部件, no. 05, pages 94 - 97 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113859141B (en) | 2024-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7059884B2 (en) | Electrical connection structure for conductor formed on glass surface | |
| KR101580752B1 (en) | Tuning fork electrical contact with prongs having non-rectangular shape | |
| US8403708B2 (en) | Terminating connector | |
| US20080318453A1 (en) | Compliant pin | |
| JP2010541161A (en) | Connector with additional terminal lock function | |
| US5078625A (en) | Wedge base socket attached to spg substrate | |
| JP4046033B2 (en) | Half-fitting detection structure for bus bars in electrical junction boxes for automobiles | |
| JP2005019305A (en) | Connector | |
| US20200274262A1 (en) | Shield terminal | |
| CN113859141A (en) | Automobile door wire harness connector and design method thereof | |
| US20020028597A1 (en) | Electric wire connecting structure of lamp unit | |
| CN2906965Y (en) | Electric connector | |
| JP2002170635A (en) | Latch structure of panel of electric and electronic part | |
| CN220492248U (en) | Integrated folding crimping terminal | |
| CN211086445U (en) | Contact impedance test terminal | |
| KR102651015B1 (en) | Electric terminal | |
| JP2000021485A (en) | Contact and connector device provided with the contact | |
| KR20220135163A (en) | Electrical connector | |
| JP3459603B2 (en) | Inspection method of output voltage of focus pack | |
| JP3186323B2 (en) | Lamp holder | |
| KR200467487Y1 (en) | Mounting structure of Relay | |
| KR20220071423A (en) | Insulator assembly jig for connector body and assembly method thereof | |
| CN116865018A (en) | Integrated double-over crimping terminal and manufacturing method thereof | |
| JPH11101835A (en) | Rf communication unit and its inspection method | |
| JP3685435B2 (en) | Television wiring equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |