CN212429684U

CN212429684U - Mounting structure of lead wire for gearbox

Info

Publication number: CN212429684U
Application number: CN202021166562.0U
Authority: CN
Inventors: 叶国威; 曾茂根; 康元福; 伊晨晖
Original assignee: Zhejiang Woder Technology Group Co ltd
Current assignee: Zhejiang Woder Technology Group Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-01-29
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to a wiring structure in gearbox of car. The utility model provides a mounting structure of lead wire for gearbox, includes the lead frame on be equipped with the connector, the connector link to each other with solenoid valve interface and sensor interface on the gearbox respectively, the lead frame pass through the main connector of connecting piece and TCU one side and link to each other. The utility model provides a lead mounting structure for a gearbox, which has stable signal transmission, few components, low cost and convenient installation; the technical problems that when the electromagnetic valve and the sensor are respectively connected with the connector of the TCU, required parts are more, the wiring harness is disordered, the cost is high and the inspection is inconvenient in the prior art are solved.

Description

Mounting structure of lead wire for gearbox

Technical Field

The utility model relates to a wiring structure in the gearbox of car especially relates to the lead wire mounting structure of solenoid valve and sensor in the gearbox.

Background

At present, automobiles are applied more and more widely. The number of parts in the automobile gearbox is very large, and the use of sensors for detecting various index conditions of the automobile is also very large. Such as speed sensors, temperature sensors, etc. The electric devices of the CVT transmission, such as an electromagnetic valve, a pressure sensor, an oil temperature sensor and the like, are arranged in the transmission and immersed in oil of the transmission, and the electric devices are connected to a whole vehicle wire harness and a transmission control module through a wire harness and a cylinder penetrating head. When the gearbox control module diagnoses that the electric devices are in fault, the fault sources can be the gearbox control module, the whole vehicle wire harness, the electric devices in the gearbox and the like.

As in the Chinese patent: "a simulation of gearbox inside electrical apparatus load detects frock (CN 210293687U)", simulation detects the frock and includes the clutch solenoid valve that is used for controlling clutch hydraulic oil, a hydraulic system solenoid valve for controlling hydraulic system, a master cylinder solenoid valve for controlling master cylinder, a torque converter solenoid valve in the liquid for controlling torque converter in the liquid, a slave cylinder solenoid valve for controlling slave cylinder, a temperature sensor for measuring gearbox fluid temperature, a master cylinder pressure sensor for measuring master cylinder hydraulic oil pressure, a slave cylinder pressure sensor for measuring slave cylinder hydraulic oil pressure, and be used for assembling the head of wearing of each solenoid valve and sensor pencil.

However, in a general gearbox valve body, there are 8 solenoid valve interfaces, 2 pressure sensor interfaces, and an interface of a parking position sensor needs to be connected with a TCU for power supply, grounding and signal transmission.

Disclosure of Invention

The utility model provides a lead mounting structure for a gearbox, which has stable signal transmission, few components, low cost and convenient installation; the technical problems that when the electromagnetic valve and the sensor are respectively connected with the connector of the TCU, required parts are more, the wiring harness is disordered, the cost is high and the inspection is inconvenient in the prior art are solved.

The utility model discloses still provide a circuit board simultaneously and arrange in a flexible way, the convenient lead frame of connecting usefulness arrange, the mounting structure of the gearbox lead wire that circuit stability is good has solved the connection structure among the prior art complicacy, the unstable technical problem of circuit that the pencil is connected.

The above technical problem of the present invention is solved by the following technical solutions: the utility model provides a mounting structure of lead wire for gearbox, includes the lead frame on be equipped with the connector, the connector link to each other with solenoid valve interface and sensor interface on the gearbox respectively, the lead frame pass through the main connector of connecting piece and TCU one side and link to each other. The electromagnetic valve interface and the sensor interface are connected with the main connector through the lead frame, only one connector interface needs to be made for the lead frame, and the cost is low. The lead frame is provided with a through hole, an embedding ring is arranged in the through hole, and the lead frame is fixed on the gearbox body after the bolt is inserted into the embedding ring. And each solenoid valve interface and sensor interface need not do the connector in addition and connect, reduce cost, simultaneously, also need not the pencil and connect, avoid the mixed and disorderly, inconvenient maintenance of pencil in the gearbox. The lead frame is formed by injection molding through plastic particles, has certain hardness, and the lead frame wholly covers on solenoid valve interface and sensor interface, also conveniently arranges the stitch lead wire on the lead frame, guarantees that the transmission of signal of telecommunication is stable, and simultaneously, neatly done is good in the gearbox, does not need the pencil to connect, just also can not classify the arrangement fixed to the pencil. The whole gearbox has fewer internal parts, is orderly arranged, is convenient to overhaul, and has reasonable utilization of internal structure space and convenient installation.

Preferably, the connector comprises a flexible circuit board and a connector connected with each other, and the connector is connected with the main connector on one side of the TCU. The flexible circuit board can be adjusted according to the position of the connection between the connector and the main connector of the TCU, limited space can be reasonably utilized, and flexibility is good. The lead frame can be connected by only externally connecting a connector, the cost is low, the lead frame can be plugged and pulled once, and the mounting effect is high.

Preferably, the lead frame is welded with the flexible circuit board, and a cover plate is arranged at the connecting position of the lead frame and the flexible circuit board. The pin leads in the lead frame are collected at the flexible circuit board and are connected to the main connector at one side of the TCU through the connectors after passing through the flexible circuit board. Because the pin lead is welded with the contact of the flexible circuit board, the welding spot needs to be protected by the cover plate, thereby preventing short circuit and improving the stability and reliability of the circuit. One end of the flexible circuit board is welded with the lead frame, and the other end of the flexible circuit board is welded with the connector.

Preferably, the lead frame is strip-shaped, the lead frame covers the positions of the electromagnetic valve interface and the sensor interface, a pin lead is arranged in the lead frame, and a flexible circuit board is arranged at the collection position of the pin lead of the electromagnetic valve interface and the pin lead of the sensor interface. The shape arrangement of the lead frame is determined according to the position arrangement of the electromagnetic valve interface and the sensor interface. A plurality of solenoid valve interfaces and sensor interfaces are combined in a lead frame to the greatest extent, so that the space utilization rate is improved, the lead frame is made to be minimum, and the installation is convenient.

Preferably, the solenoid valve interfaces are divided into two groups, one group is located on one side of the gearbox, the other group is located on the other side of the gearbox, and the two lead frames respectively correspond to the two groups of solenoid valve interfaces on the two sides of the gearbox. A plurality of solenoid valve interfaces that lie in same one side are connected through a connector of a lead frame, and structural arrangement is reasonable, and space utilization is high.

Preferably, a connecting piece is arranged in the connecting port on the lead frame, one end of a pin lead is connected to the connecting piece, and the other end of the pin lead is connected with the flexible circuit board in the connecting piece. The connecting piece is connected with the electromagnetic valve interfaces and pins in the sensor interfaces, and then the connecting piece is integrated on the flexible circuit board through arrangement of pin leads in the lead frame, so that circuit connection is realized.

Preferably, the connecting piece comprises a connecting piece frame body, elastic clamping pieces which are arranged up and down are arranged in the connecting piece frame body, a gap is arranged between the elastic clamping pieces which are arranged up and down, the distance of the gap is smaller than the stitch thickness of the electromagnetic valve interface, and the distance of the gap is also smaller than the stitch thickness of the sensor interface. The stitch is inserted into the gap, and the stitch is opened to the distance between the elastic clamping pieces arranged up and down due to the small gap, so that one end of each elastic clamping piece is surely abutted against the stitch, close contact between the elastic clamping pieces and the stitch is realized, and the reliability of circuit connection is ensured.

Preferably, the elastic card and the connecting sheet frame are integrally formed. Simple structure and convenient process.

Preferably, one end of the elastic card is fixed with the connecting sheet frame, the other end of the elastic card is provided with a contact piece, the contact piece is in surface contact with the surface of the pin, the elastic card is obliquely arranged, and the end, provided with the contact piece, of the elastic card is higher than the plane where the connecting sheet frame is located. The elastic card is tilted upwards and provided with an everted contact piece, when the pin is inserted into the gap, the contact piece provides a guide surface for the pin, and simultaneously ensures that the pin and the elastic card form a surface contact, thereby improving the stability of circuit connection. The elastic clamping piece is obliquely arranged, so that a guide effect is realized when the pins are inserted, and the installation efficiency is improved.

Therefore, the utility model discloses a mounting structure of lead wire for gearbox possesses following advantage: the structure is simple, the space utilization rate in the gearbox is high, the electromagnetic valve interfaces and the sensor interfaces are connected with the lead frame, the lead frame can be connected with the TCU main connector only by one connector, the cost is low, the installation is convenient, the interference of a wire harness is avoided, and the whole gearbox is tidy and convenient to overhaul; meanwhile, the elastic card is connected with the pins, so that the reliability of circuit connection is improved, and the connection of the pins in the electromagnetic valve interface and the sensor interface is facilitated; the flexible circuit board breaks through the space limitation in the gearbox and has good flexibility; the cover plate can effectively prevent short circuit.

Drawings

FIG. 1 is a layout of solenoid valves, sensors and connectors in a transmission.

Fig. 2 is a mounting structure of a lead wire for a transmission.

Fig. 3 is a schematic view of the upper lead frame in fig. 2.

Fig. 4 is a rear view of fig. 3.

Fig. 5 is a schematic view of the lower lead frame in fig. 2.

Fig. 6 is an enlarged view at a in fig. 2.

Fig. 7 is a perspective view of the connecting piece.

Fig. 8 is a front view of fig. 7.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b):

as shown in fig. 1 and 2, a lead mounting structure for a transmission case includes two lead frames arranged one above the other. 4 solenoid valve interfaces 1 and a pressure sensor interface 4 are arranged above the gearbox, and 8 solenoid valve interfaces 1, a parking position sensor interface 5 and a pressure sensor interface 4 are arranged below the gearbox. The upper 4 solenoid valve interfaces 1 are positioned on the same straight line, and the lower 8 solenoid valve interfaces 1 are also positioned on the same straight line. The upper lead frame 6 covers the upper 4 solenoid valve interfaces 1 and the upper pressure sensor interface 4, and the lower lead frame 7 covers the lower 8 solenoid valve interfaces 1, a parking position sensor interface 5 and a pressure sensor interface 4.

As shown in fig. 3 and 4, the upper lead frame 6 is divided into two sections, one section is arranged horizontally and the other section is arranged obliquely, according to the positions of the solenoid valve port 1 and the pressure sensor port 4 above. The upper lead frame 6 is formed by injection molding of plastic particles. And 4 connectors are arranged on the horizontal section of the upper lead frame 6 and respectively correspond to the 4

solenoid valve interfaces

1, and 1 connector is arranged on the inclined section of the upper lead frame 6 and corresponds to the pressure sensor interface 4. The upper lead frame 1 is provided with a through hole, an embedding ring 11 is arranged in the through hole, and a bolt is inserted into the embedding ring 11 to fix the upper lead frame 6 on the gearbox body 2. Stitch leads 13 are arranged on the inner side surface of the upper lead frame 6, and the stitch leads 13 are connected with connecting sheets in the connecting ports 10. The pin leads 13 in the connecting port are converged at the intersection of the horizontal section and the inclined section of the upper lead frame 6, a flexible circuit board chip 15 is arranged at the intersection of the horizontal section and the inclined section of the upper lead frame, the pin leads 13 are welded on the flexible circuit board chip 15 and sealed by a cover plate 12 above the flexible circuit board chip to prevent short circuit. The other end of the flexible circuit board 8 is welded with a connector 9, and the collected connector 9 is connected with the main connector 3 on the TCU side.

As shown in fig. 5, the lower lead frame 7 is divided into two sections, one section is horizontally arranged and the other section is vertically arranged according to the position distribution of the lower 8 solenoid valve ports 1, one parking position sensor 5 and one pressure sensor 4. The lower lead frame 7 is formed by injection molding of plastic particles. The horizontal section of the lower lead frame 7 is provided with 8 connecting ports 10 which respectively correspond to 8 electromagnetic valve interfaces, and a reed socket 16 is formed and is used for corresponding to a parking position sensor interface; the vertical section of the lower lead frame 7 is provided with 1 connecting port corresponding to the position of the pressure sensor interface 4. The lower lead frame is provided with a through hole, an embedding ring 11 is arranged in the through hole, and a bolt is inserted through the embedding ring 11 to fix the lower lead frame 7 on the gearbox body 2. Stitch leads 13 are arranged on the inner side surface of the lower lead frame 7, and the stitch leads 13 are connected with connecting sheets in the connecting ports 10. A flexible circuit board 8 is arranged at the collection position of each pin lead 13, and a cover plate 12 is arranged on one end welding point of the flexible circuit board 8 connected with the lower lead frame 7 to prevent short circuit. The other end of the flexible circuit board 8 is soldered with a connector 9, and is connected to the main connector 3 on the TCU side through the connector 9.

As shown in fig. 6, 7 and 8, the connecting sheet includes a connecting sheet frame 18, and elastic clamping pieces arranged up and down are provided in the connecting sheet frame 18, and the elastic clamping pieces are integrally formed with the connecting sheet frame. Two upper resilient tabs 20 are provided and one lower resilient tab 19 is provided, the lower resilient tab 19 being located between the two upper resilient tabs 20 in the longitudinal direction. In the transverse direction, a gap is arranged between the elastic clamping pieces which are arranged up and down, the distance of the gap is smaller than the thickness of a pin of the solenoid valve interface, and the distance of the gap is also smaller than the thickness of a pin 17 of the sensor interface. Go up elasticity card 20 and elasticity card 19 down and all be the slope and arrange, the intersection point of going up elasticity card 20 and elasticity card 19 down is higher than the plane that connection piece framework 18 is located, it has a contact piece 21 to have a integrated into one piece at the free end of last elasticity card 20 and elasticity card 19 down, when stitch 17 inserts the clearance between the upper and lower elasticity card, because the clearance is little, the stitch outwards struts upper and lower elasticity card, the contact piece 17 of the free end of upper and lower elasticity card just butt at the surface of stitch, form the face contact, thereby utilize the elasticity of upper and lower elasticity card to guarantee the contact all the time of connection piece with the stitch, circuit connection's reliability has been guaranteed.

When the connecting device is used, the upper lead frame and the lower lead frame are directly connected with the solenoid valve interfaces and the sensor interfaces on the gearbox, and then the connector on the lead frame is connected with the main connector on the TCU, so that the integral connection is completed. And each electromagnetic valve interface and each sensor interface are not required to be independently designed, and the respective connectors are installed and molded on the electromagnetic valve interfaces and the sensor interfaces and then connected to the TCU main connector by utilizing the wiring harness.

Claims

1. The utility model provides a mounting structure of lead wire for gearbox which characterized in that: the lead frame is provided with a connector, the connector is respectively connected with an electromagnetic valve interface and a sensor interface on the gearbox, and the lead frame is connected with a main connector on one side of the TCU through a connecting piece.

2. A lead attachment structure for a transmission case according to claim 1, wherein: the connecting piece comprises a flexible circuit board and a connector which are connected with each other, and the connector is connected with a main connector at one side of the TCU.

3. A lead attachment structure for a transmission case according to claim 2, wherein: the lead frame is welded with the flexible circuit board, and a cover plate is arranged at the joint of the lead frame and the flexible circuit board.

4. A mounting structure of a lead wire for a transmission case according to claim 1, 2 or 3, wherein: the lead frame be the strip, the lead frame has covered solenoid valve interface and sensor interface position, be equipped with in the lead frame and arranged the stitch lead wire, the stitch lead wire of solenoid valve interface and the stitch lead wire of sensor interface collect the department and be equipped with flexible circuit board.

5. A lead attachment structure for a transmission case according to claim 1, 2 or 3, wherein: the electromagnetic valve interfaces are divided into two groups, one group is positioned on one side of the gearbox, the other group is positioned on the other side of the gearbox, and the two lead frames respectively correspond to the two groups of electromagnetic valve interfaces on the two sides of the gearbox.

6. A lead attachment structure for a transmission case according to claim 1, 2 or 3, wherein: the connecting piece is arranged in the connecting port on the lead frame, one end of the pin lead is connected to the connecting piece, and the other end of the pin lead is connected with the flexible circuit board in the connecting piece.

7. A lead attachment structure for a transmission case according to claim 6, wherein: the connecting piece include the connecting piece framework, be equipped with the elasticity card of upper and lower arrangement in the connecting piece framework, be equipped with the clearance between the elasticity card of upper and lower arrangement, the distance in clearance is less than the stitch thickness of solenoid valve interface, the distance in clearance also is less than the stitch thickness of sensor interface.

8. A lead attachment structure for a transmission case according to claim 7, wherein: the elastic card and the connecting sheet frame body are integrally formed.

9. A lead attachment structure for a transmission case according to claim 7, wherein: one end of the elastic card is fixed with the connecting sheet frame, the other end of the elastic card is provided with a contact piece, the contact piece is in surface contact with the surface of the pin, the elastic card is obliquely arranged, and one end of the elastic card, which is provided with the contact piece, is higher than the plane where the connecting sheet frame is located.