CN210053276U - Electromagnetic leakage prevention wiper motor - Google Patents

Abstract

The utility model relates to an anti-electromagnetic leakage's wiper motor, including motor main part and reduction gear, the motor main part includes motor casing, and the reduction gear includes retarder housing, and retarder housing is including covering in the connection lid of motor casing port department, and connection lid department is equipped with the wire guide, the wire guide embedded metal shielding piece that is equipped with, be equipped with the location through wires hole that supplies single wire to pass on the metal shielding piece. The utility model discloses a wiper motor outlet structure reasonable in design prevents that the electromagnetic wave from leaking by outlet opening department.

Description

Electromagnetic leakage prevention wiper motor

Technical Field

The utility model relates to a wiper motor.

Background

Current wiper motor includes motor main part and reduction gear usually, motor main part is including holding motor stator, the motor casing of rotor, the reduction gear is including having the reduction gear casing who holds the worm wheel chamber of reduction gear, reduction gear casing has the connection lid of lid on the motor casing port, install the brush subassembly usually in the connection lid, it is equipped with the wire hole that supplies the wire to wear out to connect to cover, many wires directly pass the wire hole, there is the gap between many wires and between wire and the wire pore wall, the inside electromagnetism of wiper motor escapes through this gap, cause the electromagnetism to leak.

Disclosure of Invention

The utility model discloses the invention purpose: in order to overcome the defects existing in the prior art, the utility model provides a wire outlet structure reasonable in design prevents the electromagnetic wave by the wiper motor of wire outlet department leakage.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an anti-electromagnetic leakage's wiper motor, includes motor body and reduction gear, and the motor body includes motor casing, and the reduction gear includes reduction gear housing, and reduction gear housing is equipped with wire hole, its characterized in that including the connection lid of lid in motor casing port department in connection lid department: the wire hole embedded with a metal shielding block, the metal shielding block is provided with a positioning threading hole for a single wire to pass through.

Through adopting above-mentioned technical scheme, at the downthehole installation metal shield piece of wire, adopt the location through wires hole design that supplies single wire to pass on the metal shield piece to realize that many wires are independently sealed, prevent that the wire from passing position department electromagnetism and leaking.

Preferably, an internal thread is arranged in the wire hole, an external thread is arranged on the metal shielding block, and the metal shielding block is screwed in the wire hole. Under this structural design, the metal shielding piece adopts the screw assembly, has assembly structure simple and conveniently, and the sealed cooperation between the metal shielding piece wire guide is reliable, guarantees to prevent electromagnetic leakage reliability.

Preferably, a shielding metal cover for covering the wiper automatic repositor terminal is arranged outside the reducer shell, the shielding metal cover is provided with a wire outlet, a metal shielding net pipe is sleeved outside a lead connected with the wiper automatic repositor terminal, the metal shielding net pipe extends into the shielding metal cover through the wire outlet, and the metal shielding net pipe is pressed on the reducer shell through the wire outlet of the shielding metal cover. Under the structural design, the terminal of the automatic wiper repositor adopts a metal shielding cover and a metal shielding net pipe design, thereby achieving the purpose of preventing electromagnetic wave leakage.

Preferably, be equipped with the shaft hole that the motor shaft of power supply machine main part passed in the connection lid, the shaft hole is equipped with the dead eye towards the one end of connecting in the lid, installs supporting bearing on the motor shaft, and supporting bearing installs in the dead eye, the reduction gear include worm wheel and with worm wheel meshed worm, the worm with the motor shaft integrated into one piece of motor main part is equipped with the worm location shaft hole relative with dead eye position on reduction gear casing, and worm location shaft hole link up the setting, and the downthehole screw thread of worm location shaft is equipped with adjusting nut soon, and the worm supports on adjusting nut for the other end with motor shaft integrated into one piece one end, the outer port in screw location shaft hole is equipped with the metal shielding end cap that is used for plugging up the outer. Under this structural design, set up the metal shielding end cap at the worm location shaft hole outer port of worm location installation, the shielding effect is realized to the metal shielding end cap, avoids electromagnetism to be excessive through worm location shaft hole, provides anti-electromagnetic leakage performance.

Preferably, the metal shielding plug is a pot-shaped elastic sheet, and the elastic sheet is plugged in the outer port of the screw positioning shaft hole in an elastic opening mode. Under this structural design, metal shielding end cap simple structure, the flexure strip of pot shape has good elastic deformation ability, and the flexure strip elastic deformation back struts presses in the outer port in screw rod location shaft hole, realizes simple reliable fixed mounting, and the flexure strip realizes spacing adjusting nut simultaneously, prevents that adjusting nut from deviating from worm location shaft hole.

Preferably, be equipped with the stopper in connecting the lid inner chamber, connect and cover and be equipped with the bolt hole, stopper one end corresponds to bolt hole department and is equipped with and corresponds complex screw thread screw hole with the bolt hole, and the stopper other end has and extends to in the dead spacing portion of dead bearing port edge, install the locking bolt in the bolt hole, the locking bolt passes the bolt hole and connects on the screw thread screw hole of stopper soon. Under this structural design, the stopper realizes fixed spacing to supporting bearing, has the advantage of assembly structure simple compactness, realizes simultaneously that the bearing is inside fixed, guarantees that the whole leakproofness after the casing equipment is accomplished is good, improves anti-electromagnetic leakage performance.

The present invention will be further described with reference to the accompanying drawings.

Drawings

Fig. 1 is a first schematic structural view of a wiper motor for preventing electromagnetic leakage according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a disassembled state of a metal shielding block in a wiper motor for preventing electromagnetic leakage according to an embodiment of the present invention, with the lead omitted;

fig. 3 is a schematic structural view of a wiper motor for preventing electromagnetic leakage according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the shielding metal cover in the electromagnetic leakage preventing wiper motor according to the embodiment of the present invention in a disassembled state, omitting the metal shielding mesh tube;

FIG. 5 is a schematic view of a worm mounting structure according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of the motor according to the embodiment of the present invention in a state where the motor body is removed;

FIG. 7 is a schematic view of the fitting structure of the worm and the worm positioning shaft hole according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a metal shielding plug according to an embodiment of the present invention;

the automatic wiper resetting device comprises a motor main body 1, a motor shell 11, a motor shaft 12, a supporting bearing 13, a speed reducer 2, a speed reducer shell 21, a worm 22, a connecting cover 211, a wire hole 212, a bearing hole 213, a worm positioning shaft hole 214, a metal shielding block 3, a positioning threading hole 31, external threads 32, a wire a, a wiper automatic resetting device terminal 4, a shielding metal cover 5, a wire outlet 51, a metal shielding net pipe 6, an adjusting nut 7, a metal shielding plug 8, a limiting block 9, a thread screwing hole 91 and a limiting part 92.

Detailed Description

Referring to fig. 1-8, the utility model discloses an anti-electromagnetic leakage's wiper motor, including motor main part 1 and reduction gear, motor main part 1 includes motor casing 11, and reduction gear 2 includes reduction gear housing 21, and reduction gear housing 21 is including covering in the connection lid 211 of motor casing 11 port department, and connection lid 211 department is equipped with wire guide 212, the embedded metallic shield piece 3 that is equipped with of wire guide 212, be equipped with the location through wires hole 31 that supplies single wire an to pass on the metallic shield piece 3. The metal shielding block is arranged in the wire hole, and the positioning threading hole for a single wire to pass through is designed on the metal shielding block, so that independent sealing of a plurality of wires is realized, and electromagnetic leakage at the position where the wire passes through is prevented.

An internal thread is arranged in the wire guide hole 212, an external thread 32 is arranged on the metal shielding block 3, and the metal shielding block 3 is screwed in the wire guide hole 212. The metal shielding block is assembled by adopting threads, the assembly structure is simple and convenient, the sealing fit between the wire holes of the metal shielding block is reliable, and the reliability of electromagnetic leakage prevention is ensured.

In order to further improve the performance of preventing electromagnetic leakage, a shielding metal cover 5 for covering the wiper automatic repositor terminal 4 is arranged outside the reducer shell 21, the shielding metal cover 5 is fixedly installed on the reducer shell 21 through screws, the shielding metal cover 5 is provided with a wire outlet 51, a metal shielding net pipe 6 is sleeved outside a lead connected with the wiper automatic repositor terminal 4, the metal shielding net pipe 6 extends into the shielding metal cover 5 through the wire outlet 51, and the wire outlet 51 of the shielding metal cover 5 presses the metal shielding net pipe 6 on the reducer shell 21. The terminal of the automatic wiper repositor adopts a metal shielding cover and a metal shielding net pipe design, thereby achieving the purpose of preventing electromagnetic wave leakage. The other end of the metal shielding net tube 6 extends along with the lead connected with the wiper automatic repositor terminal 4, and selects a proper length to the terminal of the wiper automatic repositor terminal 4 connecting lead according to the requirement, which is not shown in the figure.

In addition, a shaft hole through which the motor shaft 12 of the motor main body 1 passes is arranged in the connecting cover 211, a bearing hole 213 is arranged at one end of the shaft hole facing the inside of the connecting cover, a supporting bearing 13 is arranged on the motor shaft 12, the supporting bearing 13 is arranged in the bearing hole 213, the speed reducer 2 comprises a worm wheel and a worm 22 meshed with the worm wheel, the worm 22 and the motor shaft 12 of the motor main body 1 are integrally formed, a worm positioning shaft hole 214 opposite to the bearing hole 213 is arranged on the speed reducer casing 21, the worm positioning shaft hole 214 is arranged in a penetrating manner, an adjusting nut 7 is screwed in the worm positioning shaft hole 214, the worm 22 is supported on the adjusting nut 7 relative to the other end of one end integrally connected with the motor shaft 12, a supporting steel ball is arranged at the end of the worm 22, the adjusting nut 7 is provided with an insertion cavity for inserting the end of the worm, the outer port of the screw positioning shaft hole 214 is provided with a metal shielding plug 8 for plugging the outer port of the screw positioning shaft hole 214. The metal shielding plug is arranged at the outer port of the worm positioning shaft hole for positioning and mounting the worm, realizes the shielding effect, avoids the electromagnetic interference from overflowing through the worm positioning shaft hole, and improves the electromagnetic leakage prevention performance.

Further, the metal shielding plug 8 is a pot-shaped elastic sheet, and the elastic sheet is plugged into the outer port of the screw positioning shaft hole 214 in an elastic spreading manner. The metal shielding end cap is simple in structure, the pot-shaped elastic sheet has good elastic deformation capacity, the elastic sheet is propped open after elastic deformation and pressed in the outer port of the screw positioning shaft hole, simple and reliable fixed installation is realized, the elastic sheet is limited by the adjusting nut, and the adjusting nut is prevented from being separated from the worm positioning shaft hole.

In addition, be equipped with the bolt hole on the connection lid 211, be equipped with stopper 9 in the connection lid 211 inner chamber, stopper 9 one end corresponds to bolt hole department and is equipped with and corresponds complex screw thread screw hole 91 with the bolt hole, and the stopper 9 other end has and extends to in the dead portion 92 of bearing hole 213 port edge and to the spacing of support bearing 13, install locking bolt on the bolt hole, locking bolt passes the bolt hole and connects on stopper 9's screw thread screw hole 91 soon. The limiting fixing of the supporting bearing is realized through the limiting block, the limiting fixing of the inside of the bearing is realized, the good integral sealing performance after the shell is assembled is ensured, the electromagnetic leakage resistance is improved, and the assembling structure has the advantages of simplicity and compactness.

Claims (6)

1. The utility model provides an anti-electromagnetic leakage's wiper motor, includes motor body and reduction gear, and the motor body includes motor casing, and the reduction gear includes reduction gear housing, and reduction gear housing is equipped with wire hole, its characterized in that including the connection lid of lid in motor casing port department in connection lid department: the wire hole embedded with a metal shielding block, the metal shielding block is provided with a positioning threading hole for a single wire to pass through.

2. The electromagnetic leakage prevention wiper motor according to claim 1, wherein: the wire guide hole is internally provided with internal threads, the metal shielding block is provided with external threads, and the metal shielding block is screwed in the wire guide hole.

3. The electromagnetic leakage prevention wiper motor according to claim 1, wherein: the automatic wiper resetting device is characterized in that a shielding metal cover for covering the terminal of the automatic wiper resetting device is arranged outside the reducer shell, the shielding metal cover is provided with a wire outlet, a metal shielding net pipe is sleeved outside a lead connected with the terminal of the automatic wiper resetting device, the metal shielding net pipe extends into the shielding metal cover through the wire outlet, and the metal shielding net pipe is pressed on the reducer shell through the wire outlet of the shielding metal cover.

4. The electromagnetic leakage prevention wiper motor according to claim 1, wherein: the shaft hole that is equipped with the motor shaft that supplies the motor main part in the connection lid and passes, the shaft hole is equipped with the dead eye towards the one end of connecting in the lid, installs supporting bearing on the motor shaft, and supporting bearing installs in the dead eye, the reduction gear include worm wheel and with worm wheel meshed worm, the worm with motor shaft integrated into one piece of motor main part is equipped with the worm location shaft hole relative with the dead eye position on reduction gear casing, and worm location shaft hole link up the setting, and the downthehole screw thread of worm location shaft is equipped with adjusting nut soon, and the worm supports on adjusting nut for the other end with motor shaft integrated into one piece one end, the outer port in worm location shaft hole is equipped with the metal shielding end cap that is used for plugging up.

5. The electromagnetic leakage prevention wiper motor according to claim 4, wherein: the metal shielding plug is a pot-shaped elastic sheet, and the elastic sheet is plugged in the outer port of the worm positioning shaft hole in an elastic opening mode.

6. The electromagnetic leakage prevention wiper motor according to claim 4, wherein: be equipped with the stopper in the connection lid inner chamber, the connection is covered and is equipped with the bolt hole, stopper one end corresponds to bolt hole department and is equipped with and corresponds complex screw thread screw-on hole with the bolt hole, and the stopper other end has and extends to in the dead eye port edge and to the spacing portion of supporting bearing, install the locking bolt in the bolt hole, the locking bolt passes the bolt hole and connects on the screw thread screw-on hole of stopper soon.

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