CN215911984U

CN215911984U - Motor housing with wire outlet waterproof structure

Info

Publication number: CN215911984U
Application number: CN202122387191.XU
Authority: CN
Inventors: 王汝龙; 刘文虎; 张士飞
Original assignee: ZHEJIANG UNITE MOTOR CO Ltd
Current assignee: Zhejiang Unitech Electric Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-02-25
Anticipated expiration: 2031-09-29

Abstract

The utility model relates to the technical field of waterproofing of motors, and provides a motor shell with a wire outlet waterproofing structure, which comprises a wire outlet arranged on the motor shell and a junction box arranged on the wire outlet; the wiring box is provided with a wiring lug for connecting wires inside the motor, the wiring lug penetrates through the wiring box, and the wiring lug and the wiring box are sealed through sealant; the junction box is fastened with the motor shell at the wire outlet through a fastener, and the junction box and the wire outlet are sealed through a sealant or a sealing gasket; and a better waterproof effect is realized through double sealing of the junction box.

Description

Motor housing with wire outlet waterproof structure

Technical Field

The utility model relates to the technical field of waterproofing of motors, in particular to a motor shell with an outgoing line waterproofing structure.

Background

The existing motor is characterized in that an electric wire inside the existing motor is led out from a motor shell, a wire outlet hole is formed in the motor shell, a rubber wire outlet sleeve is wrapped at the position of the electric wire which is led out, the rubber wire outlet sleeve is clamped in the wire outlet hole, and the wire outlet mode is poor in waterproof effect and difficult to meet the protection requirement of IP X6.

Therefore, a motor housing with a wire outlet waterproof structure needs to be developed to meet a higher waterproof effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defect of poor waterproof effect at the outlet of the existing motor shell, and provides the motor shell with the outlet waterproof structure, which has higher waterproof effect.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a motor shell with a wire outlet waterproof structure comprises a wire outlet arranged on the motor shell and a junction box arranged on the wire outlet; the wiring box is provided with a wiring lug for connecting wires inside the motor, the wiring lug penetrates through the wiring box, and the wiring lug and the wiring box are sealed through sealant; the junction box is arranged at the wire outlet and fastened with the motor shell through a fastening piece, and the junction box and the wire outlet are sealed through a sealant or a sealing gasket.

The further preferable scheme of the utility model is as follows: the junction box is provided with a jack for the lug to pass through and a shallow groove for fixing the lug; the lug is in an inverted J shape, one end of the lug penetrates through the jack, and the other end of the lug is inserted into the shallow groove and in interference fit with the shallow groove.

The further preferable scheme of the utility model is as follows: a binding post is arranged on the binding post, and the binding post consists of a nut and a bolt; the bolt penetrates through the lug plate and is fastened with the nut; and the junction box is provided with a fixing groove for accommodating a nut.

The further preferable scheme of the utility model is as follows: the fixing groove is positioned between the shallow groove and the jack.

The further preferable scheme of the utility model is as follows: the wiring lugs are two or three, and the junction box is provided with a blocking plate used for separating the wiring posts on the adjacent wiring lugs.

The further preferable scheme of the utility model is as follows: the shallow groove and the fixing groove are located on one side of the junction box, a bulge portion surrounding the lug is arranged on the other side of the junction box, and a gap is reserved between the lug and the bulge portion and used for filling sealant.

The further preferable scheme of the utility model is as follows: the junction box is also provided with an annular glue pouring groove on the contact surface with the motor shell, and the junction box is sealed with the wire outlet through the annular glue pouring groove.

The further preferable scheme of the utility model is as follows: the glue pouring groove is arranged around the bulge part.

The further preferable scheme of the utility model is as follows: comprises a shell, a front cover and a rear cover which are respectively arranged at the front side and the rear side of the shell; the front cover and the rear cover are both fixed with the shell; the outlet is arranged on the shell.

The further preferable scheme of the utility model is as follows: the junction box comprises a wire holder and a box cover; the lug plate penetrates through the wire holder; the wire holder is fixed on the wire outlet.

In conclusion, the utility model has the following beneficial effects: set up the outlet on the casing to unified being qualified for the next round of competitions through the terminal box on the outlet, because between terminal box and the lug, and all set up seal structure between terminal box and the casing, or the encapsulating or increase waterproof sealing pad, this kind of waterproof construction compares in current scheme, can satisfy IP X8 protection level requirement, has improved water-proof effects greatly.

Drawings

Fig. 1 and 2 are exploded views of a motor housing with a wire-out waterproof structure according to the present invention, in which a front cover and a rear cover are not shown.

Fig. 3 is a schematic structural view of the wire holder.

Fig. 4 is a sectional view of the wire holder.

Wherein:

100. a housing; 110. an outlet; 200. a wire holder; 210. a jack; 220. shallow-groove; 230. fixing grooves; 240. a barrier plate; 250. a raised portion; 260. a glue pouring groove; 300. a box cover; 400. a lug plate; 410. a bolt; 420. and a nut.

Detailed Description

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

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

As shown in fig. 1 to 3, the present invention provides a motor housing with a waterproof structure for outgoing lines, which includes a housing 100, and a front cover and a rear cover respectively disposed at front and rear sides of the housing 100. The front cover and the rear cover are fixed to the casing 100 by a screw fastener.

The outlet waterproof structure of the motor shell comprises an outlet 110 arranged on the shell 100 and a junction box arranged on the outlet 110; the wiring box is provided with a wiring sheet 400 used for connecting electric wires inside the motor, and the wiring sheet 400 penetrates through the wiring box and is sealed with the wiring sheet 400 through sealant. The junction box is fastened with the motor shell at the outlet 110 through a fastener, and the junction box and the outlet 110 are sealed through a sealant or a sealing gasket. And a better waterproof effect is realized through double sealing of the junction box.

In this embodiment, the junction box includes a wire holder 200 and a box cover 300, and the wire holder 200 is positioned between the box covers 300 and fastened together by screws. Specifically, the wire holder 200 is fixed to the wire outlet 110 by screws, and the wire connecting piece 400 is inserted into the wire holder 200.

In specific implementation, the wire connecting piece 400 is in an inverted J shape, and the wire holder 200 is provided with an insertion hole 210 through which one end of the wire connecting piece 400 passes and a shallow groove 220 for fixing the other end of the wire connecting piece 400. One end of the wire connector 400 passes through the insertion hole 210 and then enters the housing 100 through the wire outlet 110 to enable wire connection, and the other end of the wire connector 400 is located outside the wire outlet 110, inserted into the shallow groove 220 of the wire holder 200 and in interference fit therewith. The receptacles 210 and shallow slots 220 are shown in greater detail in figure 4.

A terminal is provided on the tab 400, and the terminal is composed of a nut 420 and a bolt 410. The bolt 410 is inserted into the lug 400 and fastened to the nut 420, and a cable can be externally connected by fastening the bolt 410 to the nut 420. The wire holder 200 is provided with a fixing groove 230 for accommodating the nut 420, and the fixing groove 230 is located between the shallow groove 220 and the insertion hole 210. The nut 420 is hexagonal, and the fixing groove 230 is also hexagonal with the same size as the nut 420 so that the nut 420 can be inserted properly. A cylindrical groove is further formed at the bottom of the fixing groove 230, and when the bolt 410 is fastened, the lower end of the bolt 410 can be inserted into the cylindrical groove.

The number of the wire connecting pieces 400 is two or three, and in the present embodiment, three wire connecting pieces 400 are taken as an example for illustration. A blocking plate 240 for separating the terminals of the adjacent tabs 400 is provided on the terminal holder 200. Similarly, the inner wall of the box cover 300 is also provided with a corresponding blocking plate 240.

In this embodiment, the shallow groove 220 and the fixing groove 230 are located on one side of the wire holder 200, a raised portion 250 surrounding the wire connector 400 is disposed on the other side of the wire holder 200, and a gap is formed between the wire connector 400 and the raised portion 250 for filling a sealant.

Further, the wire holder 200 is further provided with an annular glue pouring groove 260 on a contact surface with the motor housing, and the glue pouring groove 260 is arranged around the bulge portion 250. The wire holder 200 is sealed with the outlet 110 by an annular potting groove 260.

In some alternatives, a waterproof silicone sheet can be padded in the glue pouring groove to achieve the same effect.

Claims

1. A motor shell with a wire outlet waterproof structure is characterized by comprising a wire outlet arranged on the motor shell and a junction box arranged on the wire outlet; the wiring box is provided with a wiring lug for connecting wires inside the motor, the wiring lug penetrates through the wiring box, and the wiring lug and the wiring box are sealed through sealant; the junction box is arranged at the wire outlet and fastened with the motor shell through a fastening piece, and the junction box and the wire outlet are sealed through a sealant or a sealing gasket.

2. The motor housing according to claim 1, wherein the terminal box is provided with an insertion hole through which a terminal lug passes, and a shallow groove for fixing the terminal lug; the lug is in an inverted J shape, one end of the lug penetrates through the jack, and the other end of the lug is inserted into the shallow groove and in interference fit with the shallow groove.

3. The motor housing of claim 2, wherein a terminal is provided on the terminal plate, the terminal plate being composed of a nut and a bolt; the bolt penetrates through the lug plate and is fastened with the nut; and the junction box is provided with a fixing groove for accommodating a nut.

4. The motor housing of claim 3, wherein the fixation groove is located between the shallow groove and the receptacle.

5. The motor housing as claimed in claim 3, wherein the terminal strips are provided in two or three, and the terminal block is provided with a barrier plate for separating the terminal strips of the adjacent terminal strips.

6. The motor housing as set forth in claim 3, wherein said shallow grooves and said fixing grooves are formed on one side of said terminal block, and a raised portion surrounding said tab is formed on the other side of said terminal block, and a gap is formed between said tab and said raised portion for filling a sealant.

7. The motor housing as claimed in claim 6, wherein the junction box is further provided with an annular potting groove on a contact surface with the motor housing, and the junction box is sealed with the outlet through the annular potting groove.

8. The motor housing of claim 7, wherein the potting groove is disposed around the raised portion.

9. The motor housing of claim 1, comprising a housing, and a front cover and a rear cover respectively disposed at front and rear sides of the housing; the front cover and the rear cover are both fixed with the shell; the outlet is arranged on the shell.

10. The motor housing of claim 1, wherein the terminal box comprises a wire holder and a box cover; the lug plate penetrates through the wire holder; the wire holder is fixed on the wire outlet.