CN210008070U

CN210008070U - kinds of sensors

Info

Publication number: CN210008070U
Application number: CN201920494169.5U
Authority: CN
Inventors: 王小兵; 颜建华
Original assignee: Williams (suzhou) Control System Co Ltd
Current assignee: Williams (suzhou) Control System Co Ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2020-01-31
Anticipated expiration: 2029-04-12

Abstract

The utility model relates to an automotive electronics field specifically discloses kinds of sensors the sensor includes the circuit board, contains the pencil of many wires, pencil locating plate and sealing plug, a plurality of wire holes have been seted up on the pencil locating plate, the sealing plug sets up in the pencil locating plate and the sealing plug is located between pencil locating plate and the circuit board, the end of every wire runs through wire hole and sealing plug and electricity and connects in the circuit board, wire hole and sealing plug are configured into the position that can fix the wire.

Description

kinds of sensors

Technical Field

The utility model relates to an automotive electronics field especially relates to kinds of sensors.

Background

The sensor has wide application in the field of automobile electronic acceleration control systems, wherein the displacement sensor is used for monitoring the position of an oil pedal of a vehicle, and the structure of the sensor mainly comprises a circuit board, a plug and a wiring harness for connecting the circuit board and the plug, wherein the plug is used for connecting an external controller.

In order to improve the production efficiency and waterproof and dustproof performance of the sensor, the structure of the sensor is optimized in recent years, however, the current sensors have the following problems:

1. in the production and processing process of the actual sensor, when the circuit board is respectively welded by the plurality of wires in a scattered state, the positions of the wires are not convenient to control and correspond to the set positions welded on the circuit board in the welding process because the wires are easy to change due to the fact that the wires are soft, the welding difficulty is high, and the welding speed is influenced;

2. as shown in fig. 1, the wire harness is formed by inserting the plug 100 into the socket 200 of the sensor, but the rubber ring circumferentially arranged on the outer wall of the plug 100 is broken, aged or corroded due to long-term use, which may cause the sealing performance between the plug 100 and the socket 200 to be reduced;

3. because the wire harness is directly welded in the circuit board, the circuit board is scrapped due to the fact that insufficient soldering and wrong soldering are easy to occur in the production process, and the cost is high;

4. because the number of the wire harnesses welded on the circuit board is large, the problems of small welding space of the wire of the circuit board and high welding difficulty exist.

In view of the above problems, it is urgently needed to provide kinds of sensors, which can optimize the design structure of the sensors, improve the production efficiency of the sensors, solve the problems of scattering and easy position change during the wire welding process, and improve the welding accuracy and production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide kinds of sensors, can solve the scattered indiscriminate and easy problem that changes in position of wire welding process, improve welding accuracy and production efficiency.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an kinds of sensors, including the circuit board, contain the pencil of many wires, it still includes:

the wire harness positioning plate is provided with a plurality of wire outlet holes;

the sealing plug is arranged in the wire harness positioning plate and is positioned between the wire harness positioning plate and the circuit board;

the end of each lead extends through the outlet hole and the sealing plug and is electrically connected to the circuit board, the outlet hole and the sealing plug being configured to secure the position of the lead.

Optionally, an accommodating groove is formed in the wire harness positioning plate, and the sealing plug is arranged in the accommodating groove.

Optionally, the sealing plug is provided with a plurality of sealing holes corresponding to the outlet holes, and the wires can pass through the sealing holes.

Optionally, the sealing plug further comprises a switching circuit board arranged in the accommodating groove, the switching circuit board is located between the circuit board and the sealing plug, and the lead is electrically connected with the circuit board through the switching circuit board.

Optionally, a plurality of welding holes corresponding to the wire outlet holes are formed in the adapter circuit board, and the wires are electrically connected to the welding holes corresponding to the wires.

Optionally, a plurality of contact pins are arranged on the switching circuit board, and the switching circuit board is electrically connected with the circuit board through the contact pins.

Optionally, a protrusion is convexly arranged on the side of the adapting circuit board, a groove communicated with the accommodating groove is formed in the harness positioning plate, and the protrusion is clamped in the groove.

Optionally, a housing is also included,

the circuit board set up in the shell, be provided with pencil locating plate slot on the shell, the last correspondence of pencil locating plate slot is provided with the ka tai, the ka tai joint is in pencil locating plate slot.

Optionally, a limiting hole is formed in the circuit board, a limiting post corresponding to the limiting hole is arranged on the shell, and the limiting post penetrates through the limiting hole.

Optionally, the outer shell is filled with a hot melt adhesive, and the hot melt adhesive is injected to form an encapsulation shell.

The technical effects of the utility model are that:

the utility model provides a sensor includes the circuit board, contains the pencil of many wires, pencil locating plate and sealing plug, seted up a plurality of wire holes on the pencil locating plate, the sealing plug sets up in the pencil locating plate and the sealing plug is located between pencil locating plate and the circuit board, and the end of every wire runs through wire hole and sealing plug and electricity and connects in the circuit board, and wire hole and sealing plug are configured into the position that can fix the wire.

Drawings

FIG. 1 is a schematic diagram of a prior art sensor configuration;

fig. 2 is a schematic diagram of an explosion structure of the sensor provided by the present invention;

fig. 3 is a schematic structural diagram of the sensor provided by the present invention after being assembled;

fig. 4 is a schematic structural view of the wire harness penetrating through the wire harness positioning plate and the sealing plug provided by the present invention;

fig. 5 is the utility model provides a pencil runs through behind pencil locating plate and the sealing plug welding switching circuit board's schematic structure diagram.

In the figure:

100-plug connector; 200-a socket;

1-a circuit board; 2-a wire harness; 3-a wiring harness positioning plate; 4-a switching circuit board; 5-sealing plug; 6-a housing; 7-packaging shell;

11-needle hub; 12-a limiting hole; 21-a wire; 31-outlet hole; 32-accommodating grooves; 33-a groove; 34-a clamping table; 41-welding holes; 42-pin insertion; 43-convex; 51-sealing the hole; 61-wire harness positioning plate slot; 62-a limiting column;

421-stitch; 422-needle.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the following describes the technical solution of the present invention by combining the drawings and by using specific embodiments .

In the description of the present invention, unless otherwise expressly stated or limited, the terms "connected," "connected," and "fixed" shall be construed , for example, as being fixedly connected, detachably connected, or in body, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, connected between two elements, or interacting between two elements.

In the present disclosure, unless otherwise expressly stated or limited, "above" or "below" a second feature includes features directly contacting the second feature, and may also include features contacting the second feature not directly but through another feature in between, furthermore, features "above", "over" and "on" the second feature include features directly above and obliquely above the second feature, or merely indicate that feature is at a higher level than the second feature, features "below", "beneath" and "under" the second feature include features directly below and obliquely below the second feature, or merely indicate that feature is at a lower level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Fig. 2 is a schematic diagram of an explosion structure of a sensor, fig. 3 is a schematic diagram of a sensor assembled according to the present invention, as shown in fig. 2 and fig. 3, the present embodiment discloses sensors, which includes a circuit board 1, a wire harness 2 including a plurality of wires 21, a wire speed positioning plate 3, a switching circuit board 4, a sealing plug 5, a housing 6 and a packaging shell 7, wherein a end of the wire harness 2 penetrates through the wire speed positioning plate 3 and the sealing plug 5 and then is electrically connected to the circuit board 1 through the switching circuit board 4, the packaging shell 7 covers the housing 6, a receiving space for receiving the circuit board 1 is formed between the packaging shell 7 and the housing 6, and the sealing and protecting effects are performed on the circuit board 1, another end of the wire harness 2 is used for electrically connecting an external controller (not shown in the figure), the circuit board 1 is provided with components such as hall elements, the sensor senses external signals through the hall elements, and finally transmits the generated electrical signals to the external controller through the wire harness 2.

In order to solve the problem that the welding efficiency is reduced because the positions of the leads 21 are scattered and unfixed in the production and manufacturing process, the sensor in the embodiment comprises a wire speed positioning plate 3 provided with a wire outlet hole 31 and a sealing plug 5. The wire outlet holes 31 and the sealing plugs 5 of the wire speed positioning plate 3 mainly play a role in fixing the positions of the wires 21 of the wire harness 2 before welding, so that the wires 21 can be stably welded to the positions to be welded, and the welding efficiency and the welding speed are improved.

Specifically, as shown in fig. 2, the wire harness positioning plate 3 is provided with an accommodating groove 32, the plurality of wire outlets 31 correspond to the wires 21 , the accommodating groove 32 is inserted with a sealing plug 5 in an interference manner to seal a gap in the accommodating groove 32, the sealing plug 5 is made of rubber or silica gel, the sealing plug 5 is provided with a plurality of sealing holes 51 corresponding to the wire outlets 31, ends of the wires 21 of the wire harness 2 sequentially penetrate through the wire outlets 31 on the wire harness positioning plate 3 and the sealing holes 51 on the sealing plug 5 in an interference manner and then are welded to the adaptor circuit board 4, the other ends of the wires 21 of the wire harness 2 are connected to a plug (not shown in the figure), and the sensor is connected to an external controller through the plug.

Compared with the prior art, wire hole 31 on the pencil locating plate 3 and sealed hole 51 on the sealing plug 5 can realize fixing every wire 21's position, it has solved each wire 21 and has distributed in a jumble, loose and be not convenient for be fixed in the wire 21 and wait the problem on the welding position, each wire 21 interference runs through the design of each wire hole 31 simultaneously, prevented that dust or liquid from flowing into wire hole 31 has also been played, good sealed effect has, simultaneously sealing plug 5 has also played the space of filling in the holding tank 32, the waterproof dustproof sealed effect's of reinforcing effect.

In order to solve the problems that the circuit board 1 is scrapped due to insufficient soldering, wrong soldering and soldering tin pollution when the leads 21 are directly soldered on the circuit board 1 in the prior art, the sensor of the embodiment is provided with the adapter circuit board 4, ends of the leads 21 which penetrate through the wire outlet hole 31 in an interference mode are electrically connected with the circuit board 1 through the adapter circuit board 4, if the problems of insufficient soldering, soldering tin pollution, errors and the like occur in the soldering process, only the adapter circuit board 4 with low cost needs to be replaced, the circuit board 1 does not need to be replaced, and the cost of soldering errors is reduced.

Specifically, as shown in fig. 2, a plurality of soldering holes 41 corresponding to the wire holes 31 are formed in the adapting circuit board 4, ends of the wires 21 penetrate through the wire holes 31 and the sealing holes 51 in an interference manner and are soldered in the soldering holes 41, respectively, so that the wires 21 are connected to the adapting circuit board 4, and meanwhile, a plurality of pins 42 corresponding to the soldering holes 41 are formed in the adapting circuit board 4, ends of the pins 42 are electrically connected to the soldering holes 41 through the circuits on the adapting circuit board 4, the other ends of the pins 42 are soldered on the circuit board 1, and the circuit board 1 is electrically connected to the soldering holes 41 on the adapting circuit board 4 through the pins 42.

, in order to arrange and mount the circuit board 1 and the wiring harness positioning plate 3 mounted with the adapting circuit board 4 on the housing 6, as shown in fig. 2, the housing 6 is provided with a wiring harness positioning plate slot 61, the adapting circuit board 4 is accommodated in the accommodating groove 32 on the wiring harness positioning plate 3, the end of the wiring harness positioning plate 3 is provided with a clamping table 34, the wiring harness positioning plate 3 is clamped and fixed in the wiring harness positioning plate slot 61 through the clamping table 34, the circuit board 1 is fixed in a circuit board mounting position (not labeled in the figure) of the housing 6, the adapting circuit board 4 is located in the wiring harness positioning plate slot 61 on the side of the circuit board 1, at this time, the adapting circuit board 4 is perpendicular to the circuit board 1, if the pin 42 is a straight rod structure, it is inconvenient to connect the adapting circuit board 4 with the circuit board 1, therefore, the pin 421 of the pin 42 is perpendicular to the pin 422, the pin 422 is welded to the pin receptacle 11 on.

, after the circuit board 1 is arranged on the housing 6, the position of the circuit board 1 is relatively fixed and does not deviate any more, as shown in fig. 2, the circuit board 1 is provided with a limit hole 12, the housing 6 is provided with a limit post 62 matched with the limit hole 12, the limit post 62 on the circuit board 1 is inserted into the limit hole 12, the position of the circuit board 1 on the housing 6 is fixed through the limit hole 12 and the limit post 62, and the assembly and processing of the sensor are facilitated .

Step , in order to improve the waterproof and dustproof performance of the sensor, as shown in fig. 2 and fig. 3, the package case 7 is made of a hot melt adhesive material, specifically, the wire harness positioning plate 3 provided with the sealing plug 5 and the adapting circuit board 4 is installed in the wire harness positioning plate slot 61, the circuit board 1 is assembled in the housing 6, then all the parts are placed in mold cavities, gaps among all the parts are filled by using an engineering hot melt adhesive material through a low-pressure injection molding process, and finally sensor products are formed, wherein the package case 7 is formed by injection molding of the engineering hot melt adhesive material.

, in order to avoid the reverse installation of the position of the adapting circuit board 4 when the adapting circuit board 4 is assembled in the accommodating groove 32 on the harness positioning plate 3, fig. 4 is the utility model provides a structure schematic diagram that the harness runs through the harness positioning plate and the sealing plug, fig. 5 is the utility model provides a structure schematic diagram that the harness runs through the harness positioning plate and the sealing plug and welds the adapting circuit board, as shown in fig. 4 and fig. 5, the side of the adapting circuit board 4 is provided with protrusion 43, be provided with the recess 33 that is linked together with the accommodating groove 32 on the notch edge of the accommodating groove 32, recess 33 and protrusion 43 phase-match, when the adapting circuit board 4 is accommodated in the accommodating groove 32 on the harness positioning plate 3, the protrusion 43 is correspondingly accommodated in the recess 33, and then the problem of reverse installation of the adapting circuit board 4 in the.

The specific installation process of the sensor is as follows:

firstly, the sealing plug 5 is inserted into the accommodating groove 32 on the wiring harness positioning plate 3 in an interference manner, and the ends of the leads 21 of the wiring harness 2 sequentially pass through the wire outlet hole 31 and the sealing hole 51 and then are inserted into the welding hole 41 of the switching circuit board 4 to be welded and fixed;

secondly, the switching circuit board 4 is fixed in the accommodating groove 32, and the contact pins 42 on the switching circuit board 4 are welded and fixed after corresponding to the needle head jacks 11 in the plug-in circuit board 1, so that the wiring harness 2, the switching circuit board 4 and the circuit board 1 are electrically connected in sequence;

then, the wire harness positioning plate 3 is installed in the shell 6, wherein the clamping table 34 of the wire harness positioning plate 3 is clamped and fixed in the wire harness positioning plate slot 61, and the limiting column 62 on the circuit board 1 is inserted in the limiting hole 12 on the shell 6;

finally, the shell 6 with all the parts is clamped on molds with cavities, the cavities are filled with engineering hot melt adhesive materials through a low-pressure injection molding process, and finally the engineering hot melt adhesive materials are injected to form a packaging shell 7, so that the assembly of the whole sensor is completed.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1, kinds of sensor, including circuit board (1), contain pencil (2) of many wires (21), characterized by, still include:

the wire harness positioning plate (3) is provided with a plurality of wire outlet holes (31);

the sealing plug (5) is arranged in the wire harness positioning plate (3), and the sealing plug (5) is positioned between the wire harness positioning plate (3) and the circuit board (1);

the end of each lead wire (21) penetrates through the outlet hole (31) and the sealing plug (5) and is electrically connected to the circuit board (1), and the outlet hole (31) and the sealing plug (5) are configured to fix the position of the lead wire (21).

2. The sensor according to claim 1, wherein a receiving groove (32) is formed in the wire harness positioning plate (3), and the sealing plug (5) is disposed in the receiving groove (32).

3. A sensor according to claim 2, characterized in that the sealing plug (5) is provided with a plurality of sealing holes (51) corresponding to the outlet holes (31), the wires (21) passing through the sealing holes (51).

4. A sensor according to claim 2, further comprising a patch circuit board (4) disposed within the receiving cavity (32), the patch circuit board (4) being located between the circuit board (1) and the sealing plug (5), the leads (21) being electrically connected to the circuit board (1) through the patch circuit board (4).

5. The sensor according to claim 4, wherein the patch circuit board (4) is provided with a plurality of soldering holes (41) corresponding to the wire outlet holes (31), and the lead wires (21) are electrically connected to the soldering holes (41) corresponding thereto.

6. The sensor according to claim 5, characterized in that a plurality of pins (42) are arranged on the adapter circuit board (4), and the adapter circuit board (4) is electrically connected with the circuit board (1) through the pins (42).

7. The sensor according to claim 4, wherein a protrusion (43) is convexly provided at the side of the adapting circuit board (4), a groove (33) communicated with the accommodating groove (32) is provided on the harness positioning plate (3), and the protrusion (43) is clamped in the groove (33).

8. The sensor according to any of the claims 2-7 and , further comprising a housing (6), wherein the circuit board (1) is disposed in the housing (6), the housing (6) is provided with a wire harness positioning plate slot (61), the wire harness positioning plate (3) is provided with a clamping table (34) corresponding to the wire harness positioning plate slot (61), and the clamping table (34) is clamped in the wire harness positioning plate slot (61).

9. The sensor according to claim 8, wherein the circuit board (1) is provided with a limiting hole (12), the housing (6) is provided with a limiting post (62) corresponding to the limiting hole (12), and the limiting post (62) penetrates through the limiting hole (12).

10. Sensor according to claim 8, characterized in that the outer casing (6) is filled with a hot melt adhesive which is injection moulded to form the encapsulating housing (7).