CN111237111A

CN111237111A - Protection structure of starter

Info

Publication number: CN111237111A
Application number: CN202010141785.XA
Authority: CN
Inventors: 蒙东东; 蒋毅清; 易祥众; 黄坚卫
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-06-05

Abstract

The invention discloses a protection structure of a starter, which comprises a rear cover arranged on a shell through a screw, a plurality of binding posts arranged on the shell and a plurality of conducting wires arranged between the binding posts, wherein the protection structure comprises an insulating protection sleeve, a first protection cap and a second protection cap. The insulating protective sleeve is sleeved outside the lead; the first protective cap is arranged on part of the plurality of wiring posts; the second protective cap is arranged on the plurality of binding posts on the other part. The protective structure of the starter is not provided with the protective cover, so that the starter has the advantages of small arrangement space, compact layout and strong applicability.

Description

Protection structure of starter

Technical Field

The invention relates to the field of engine manufacturing, in particular to a starter suitable for an agricultural engine.

Background

The application of agricultural engines is increasingly wide, and the demand phenomenon of engines which can be suitable for dry land and can meet paddy fields is highlighted in the agricultural machinery market. This demand is increasingly demanding on the protection level of the starter arranged at the lower level of the engine, since the starting performance of the starter is poor, which directly affects the use of the starter by the customer. Therefore, a starter with high protection level is urgently needed to be designed to meet the customer requirements of the wide agricultural market.

Most starters 200 who use at present all are at 6 grades and below in waterproof grade, and equipment such as tractor that works in the paddy field, and their engine can have the operating mode that wades into water, bubble water, and long-term work under such environment, arrange low level, the protection can only reach the starter of splashproof and certainly will suffer from it, can appear into water corrosion, fault modes such as electrical components inefficacy, this just directly influences peasant's farming operation. While an engine working in dry land, such as a wheat machine, is placed in an unsealed cabin, fine and dry wheat straw is sucked onto the surface of the engine, and a starter is arranged at the periphery of the engine, so that leaves of rice, corn or wheat and the like and some dust are easily accumulated. The protective cover of the starter (as shown in fig. 1 and 2) needs to avoid some binding posts and leads due to the fact that the protective cover is bridged among the relay, the switch and the shell, certain gaps exist, leaves and dust can enter the protective cover along the gaps, and the leaves and the dust are prone to burning when encountering high temperature, so that the fault phenomenon of burning is caused. Meanwhile, the user cannot easily clean the articles inside the protective cover.

To above waterproof demand, at present, there is full seal structure's starter on the market: the scheme structure of sealing rings are added at the connection position of each part and the joint of the lead. According to the technical scheme, effective measures are not taken for protecting the outgoing line of the starter stator, and the potential water seepage hazard exists at the joint of the lead joint.

For the protection of the wiring terminal of the starter, the protection cap with the detachable protection cap is the most common at present, and after the wiring of a starter assembling process and a host factory, the protection cap on the wiring terminal is likely to be lost or neglected to be installed, so that the wiring terminal is in an unprotected state.

In order to overcome the technical defects, the invention relates to a starter with high protection level.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a protective structure of a starter, which is not provided with a protective cover, so that the starter has the advantages of small arrangement space, compact layout and strong applicability.

In order to achieve the above object, the present invention provides a protection structure of a starter, the starter includes a rear cover disposed at a rear end of a housing through a screw, a plurality of terminals disposed on the housing, and a plurality of wires between the terminals, the protection structure includes an insulating protective cover, a first protective cap, and a second protective cap. The insulating protective sleeve is sleeved outside the lead; the first protective cap is arranged on part of the plurality of wiring posts; the second protective cap is arranged on the plurality of binding posts on the other part.

In a preferred embodiment, the second protective cap has a dovetail groove configuration, which only leaves room for the connection terminals.

In a preferred embodiment, the starter motor protection structure further includes a gasket and a seal ring. The sealing gasket is arranged at a screw for connecting the rear cover with the rear end of the shell; the sealing ring is arranged at the joint of the rear cover and the rear end of the machine shell.

In a preferred embodiment, the starter motor protection structure further comprises an O-ring and a roll riveting magnetic pole. The O-shaped ring is arranged at a switch of the starter; and the roll riveting magnetic pole is arranged on the shell.

In a preferred embodiment, the protective structure of the starter further comprises an outgoing line sheath and an outgoing line. The outgoing line sheath is arranged on the shell in an interference fit manner with the shell; the outgoing line adopts a connection mode of spot welding of a hard line and a soft line, and the hard line part is directly injected on the outgoing line sheath.

In a preferred embodiment, the outgoing line sheath is made of U-shaped rubber material.

Compared with the prior art, the protection structure of the starter has the following beneficial effects: the protective structure cancels the protective cover, so that the required arrangement space is small, the layout is compact, and the applicability is strong. The function of the protective cover is met by adopting the insulating protective cover, the first protective cap, the second protective cap and the outgoing line protective cover, the sealing effect is enhanced by adding a sealing gasket, a sealing ring, an O-shaped ring, a roll riveting magnetic pole and other devices, the integral sealing performance of the starter is improved, the problem of corrosion and difficulty in starting is solved, and the service life is prolonged. Meanwhile, the protection structure of the starter is optimally designed, and the potential safety hazard of burning is reduced.

Drawings

FIG. 1 is a schematic view from a perspective of a starter according to one embodiment of the prior art;

FIG. 2 is a schematic view from another perspective of a starter according to an embodiment of the prior art;

fig. 3 is a schematic structural view of a shield structure of a starter according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of a second helmet according to an embodiment of the present invention;

figure 5 is an enlarged schematic view of an outlet sheath and outlet wire according to an embodiment of the invention.

Description of the main reference numerals:

100-starter, 1-rear cover, 2-screw, 3-sealing gasket, 4-machine shell, 5-sealing ring, 6-rolling riveting magnetic pole, 7-outgoing line sheath, 8-outgoing line, 9-O-shaped ring, 10-insulating protective sleeve, 11-first protective cap, 12-second protective cap, 200-starter of prior art, 201-protective cover.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1, according to a protection structure of a starter in a preferred embodiment of the present invention, a starter 100 includes a rear cover 1 disposed at a rear end of a housing 4 by a screw 2, a plurality of terminals disposed on the housing 4, and a conductive wire disposed between the terminals and the terminals, and the protection structure includes a sealing gasket 3, a sealing ring 5, a rivet rolling magnetic pole 6, an outlet wire sheath 7, an outlet wire 8, an O-ring 9, an insulating sheath 10, a first protection cap 11, and a second protection cap 12.

In some embodiments, the insulation protection sleeve 10 is sleeved outside the wire to perform insulation protection on the wire; the first protective cap 11 is arranged on part of the plurality of binding posts; the first protective cap 11 of this embodiment is similar to the pipe shape, and its pipe portion tightly detains on the terminal, and its cigarette holder portion tightly wraps up on the binding post of insulating protective cover 10, makes binding post be unlikely to expose the outside to can guarantee the drainage and the seal of terminal and binding post department well. The second protective cap 12 is provided on the plurality of terminals of the other part. The second helmet 12 has a dovetail groove structure. The dovetail groove structure of this embodiment sets up and also is more similar at the shape of second helmet 12 and tobacco pipe form, has just opened a dovetail at the lateral part of tobacco pipe, can open second helmet 12 along the dovetail during installation, and the dovetail structure only reserves the space that is used for binding post needs, waits to cover back again after binding post installation is accomplished, utilizes the elasticity of rubber itself to guarantee binding post and binding post department water-proof effects equally. The sealing gasket 3 is arranged at the screw 2 for connecting the rear cover 1 with the rear end of the machine shell 4; the sealing ring 5 is arranged at the joint of the rear cover 1 and the rear end of the machine shell 4. The O-shaped ring 9 is arranged at a switch of the starter; and the roll riveting magnetic pole 6 is arranged on the machine shell 4. The outlet sheath 7 is arranged on the machine shell 4 in an interference fit manner with the machine shell 4; the outgoing line 8 adopts a connection mode of spot welding of a hard line and a soft line, and the hard line part is directly injected on the outgoing line sheath 7. The outgoing line sheath is made of U-shaped rubber material.

Referring to fig. 1 to 3, fig. 1 is a schematic view of a starter according to an embodiment of the prior art; FIG. 2 is a schematic view from another perspective of a starter according to an embodiment of the prior art; fig. 3 is a schematic structural view of a shield structure of a starter according to an embodiment of the present invention; in some embodiments, the starter guard structure of the present invention eliminates a drain pipe on the rear cover 1 of the starter to prevent suck back water. A sealing gasket 3 is added on a screw 2 of the rear cover 1 of the starter; and a sealing ring 5 is added at the joint of the rear cover 1 and the machine shell 4 to prevent water from entering the joint. The shell 4 of the starter is originally provided with a magnetic pole fastened by an inner hexagon screw 2, and is changed into a conventional roll riveting magnetic pole 6 to prevent water from entering.

As shown in fig. 4 to 5, fig. 4 is an enlarged schematic view of a second protective cap 12 according to an embodiment of the present invention; fig. 5 is an enlarged structural schematic diagram of the outgoing line sheath 7 and the outgoing line 8 according to an embodiment of the present invention. In some embodiments, the wires connecting the starter relay and the switch add insulation protection. Meanwhile, a first protective cap 11 is added on one end of a wiring terminal between the wires, which is connected by a starter supplier, and when the starter leaves a factory, the first protective cap 11 is sleeved on the wiring terminal from the cigarette holder, so that one end of the wire and the first protective cap 11 are integrated. The other end is added with a second protective cap 12 to form a whole, so that a wiring terminal and a wiring terminal can be covered in time after wiring of a host factory is facilitated. The second protective cap 12 only reserves the space required by the wiring terminal, and after the wiring is connected, the protective cap with the dovetail groove structure is in a closed state, and leaves and dust are not easy to enter the interior. First helmet 11 and second helmet 12 form an organic whole with wire and binding post, do not part with the wire when the dismouting, have avoided losing the phenomenon of first helmet 11 and second helmet 12, can guarantee the waterproof and dustproof effect of binding post and binding post department at any time.

Referring to fig. 1, in some embodiments, the matching portion of the casing 4 of the starter and the stator lead-out wire 8 is a U-shaped rubber outlet sheath 7, which is in interference fit with the casing 4 and is sealed and waterproof. The outgoing line 8 adopts a connection mode of spot welding of a hard wire and a soft wire, and the hard wire part of the outgoing line 8 is directly injected on the outgoing line sheath 7 to prevent external water from flowing in along the lead.

Referring to fig. 1, in some embodiments, the switch of the starter is sealed by an original rubber sleeve, and is changed into the O-ring 9 for sealing, so that the sealing effect is achieved, rubber materials can be effectively reduced, defects similar to those of the rubber sleeve can be effectively avoided, the rubber sleeve is not provided with an exhaust hole, and the switch is easily sucked to be flat during the operation. The air vent is arranged, and water coming from the outside can flow into the switch iron core from the air vent.

In summary, the protection structure of the starter has the following advantages: the protective structure cancels the protective cover, so that the required arrangement space is small, the layout is compact, and the applicability is strong. The function of the protective cover is met by adopting the insulating protective cover, the first protective cap, the second protective cap and the outgoing line protective cover, the sealing effect is enhanced by adding a sealing gasket, a sealing ring, an O-shaped ring, a roll riveting magnetic pole and other devices, the integral sealing performance of the starter is improved, the problem of corrosion and difficulty in starting is solved, and the service life is prolonged. Meanwhile, the protection structure of the starter is optimally designed, and the potential safety hazard of burning is reduced.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. A protective structure of a starter, the starter includes a plurality of terminals that set up on the casing and the wire between a plurality of terminals, its characterized in that, protective structure includes:

the insulating protective sleeve is sleeved outside the lead;

a first protective cap disposed on a portion of the plurality of posts; and

a second protective cap disposed on another portion of the plurality of posts.

2. The starter motor shield structure according to claim 1, wherein the second shield cap has a dovetail groove structure which reserves only a space required for a terminal.

3. The starter motor shield structure according to claim 1, further comprising:

a gasket provided at the screw for connecting the rear cover with the rear end of the cabinet; and

and the sealing ring is arranged at the joint of the rear cover and the rear end of the machine shell.

4. The starter motor shield structure according to claim 1, further comprising:

an O-ring provided at a switch of the starter; and

and the rolling riveting magnetic pole is arranged on the machine shell.

5. The starter motor shield structure according to claim 1, further comprising:

the outlet sheath is arranged on the shell in an interference fit manner with the shell; and

and the outgoing line adopts a connection mode of spot welding of a hard line and a soft line, and the hard line part is directly injected on the outgoing line sheath.

6. The starter motor protection structure according to claim 5, wherein the outlet sheath is made of a U-shaped rubber material.