CN216851584U

CN216851584U - Motor and power assembly

Info

Publication number: CN216851584U
Application number: CN202220220644.1U
Authority: CN
Inventors: 王广欢; 郑泽明; 何贵元
Original assignee: Suzhou Huichuan United Power System Co Ltd
Current assignee: Suzhou Huichuan United Power System Co Ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-06-28
Anticipated expiration: 2032-01-26

Abstract

The utility model provides a motor and a power assembly applying the motor, the motor comprises a junction box, a motor main body and a first sealing element, a wiring structure is arranged inside the junction box, and the wall surface of the junction box is provided with a wire passing hole communicated to the wiring structure; the motor main body is provided with a cable and a wiring terminal, the wiring terminal is connected to the free end of the cable, the wiring terminal penetrates through the wire passing hole and is connected with the wiring structure, and the cable is located outside the wiring box; the first sealing element is arranged between the wiring terminal and the hole wall of the wire passing hole in a surrounding mode so as to isolate water vapor outside the wiring box from entering the inside of the wiring box. The technical scheme of this application can reduce the risk that produces the condensation in the terminal box, ensures the performance of motor.

Description

Motor and power assembly

Technical Field

The utility model relates to the technical field of electric machines, in particular to power assembly of motor and applied this motor.

Background

The existing motor is generally provided with a junction box, a cable of a motor main body is inserted in the junction box, an external power source and grounding are connected through the junction box, the motor can generate heat during working, the temperature of ambient environment and gas inside the motor main body is increased, hot gas easily enters the junction box from a wire passing hole or the cable on the junction box, and the hot gas easily condenses to form water drops in the junction box due to the fact that the junction box is cooled quickly, condensation phenomenon occurs, the insulation performance of the motor is reduced, and the use performance of the motor is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a motor and applied this motor's power assembly, aim at reducing the risk that produces the condensation in the terminal box, ensure the performance of motor.

In order to achieve the above object, the present invention provides an electric machine, including:

the wire connecting structure is arranged inside the wire connecting box, and a wire passing hole communicated to the wire connecting structure is formed in the wall surface of the wire connecting box;

the motor body is provided with a cable and a wiring terminal, the wiring terminal is connected to the free end of the cable, the wiring terminal penetrates through the wire passing hole and is connected with the wiring structure, and the cable is located outside the wiring box;

the first sealing element is arranged between the wiring terminal and the hole wall of the wire passing hole in a surrounding mode so as to isolate water vapor outside the wiring box from entering the inside of the wiring box.

Optionally, the junction box comprises:

the wiring structure comprises a shell, a wiring board and a wiring board, wherein an installation cavity is formed in the shell, an installation hole communicated with the installation cavity is formed in the shell, and the wiring structure is arranged in the installation cavity; and

the insulating block is arranged in the mounting hole, and the wire passing hole is formed in the insulating block.

Optionally, the terminal box further includes a second sealing element, and the second sealing element is disposed around the insulating block in the circumferential direction and is clamped between the hole wall of the mounting hole and the outer side wall of the insulating block.

Optionally, the motor body is provided with a plurality of cables and a plurality of wiring terminals, each cable is connected with a corresponding wiring terminal, the insulating block is provided with a plurality of wire passing holes, and each wiring terminal penetrates through one wire passing hole.

Optionally, the outer wall of the insulating block is provided with a first mounting groove, the first mounting groove is arranged along the circumferential direction of the insulating block in a surrounding manner, and the second sealing element is arranged in the first mounting groove and protrudes out of the first mounting groove.

Optionally, a wire hole is further formed in the wall surface of the junction box and used for penetrating an external wire, and a central axis of the wire hole is perpendicular to a central axis of the wire hole.

Optionally, the wiring structure includes:

the wiring metal bar is arranged in the wiring box and provided with a first connecting part for connecting an external wire and a second connecting part for connecting the wiring terminal, the wiring hole is arranged towards the first connecting part, and the wiring hole is arranged towards the second connecting part; and

the insulating piece covers the outer side of the wiring metal bar and exposes the first connecting part and the second connecting part.

Optionally, the connection terminal includes:

the body penetrates through the wire passing hole, a receiving part is arranged on the end face of the body facing the outside of the junction box, and the cable is inserted into the receiving part; and

the wiring part is arranged at one end, facing the inside of the junction box, of the body, at least part of the wiring part is positioned inside the junction box and connected with the wiring structure.

Optionally, the wire passing hole comprises a limiting section and a through hole section, the aperture of the limiting section is larger than that of the through hole section, the cross-sectional area of the body is larger than that of the wire connecting portion, the body is inserted into the limiting section and abutted against the bottom wall of the limiting section, and the wire connecting portion penetrates through the through hole section.

The utility model discloses still provide a power assembly, power assembly includes as aforementioned arbitrary one the motor.

The technical scheme of the utility model, the cable free end of motor main part is connected with binding post, binding post wears to establish the wiring structure electricity in line hole position and the terminal box of crossing of terminal box and is connected, thereby need not to insert the cable in the terminal box, avoid the inside steam of motor main part to flow into in the terminal box from the cable is inside, and binding post's rigidity is higher than the cable, the high non-deformable of connection stability, and then press from both sides between the pore wall of crossing the line hole and binding post's the outer wall and establish the first sealing member that encircles the setting, seal the clearance between line hole and the binding post, improve sealed effect, avoid outside steam to get into in the terminal box. That is, the technical scheme of the utility model, avoided the outside steam of terminal box in from crossing the inside terminal box that gets into of line hole and cable simultaneously to reduce the risk of producing the condensation in the terminal box, simultaneously, first sealing member can also play insulating effect, has improved the safety in utilization of motor, guarantee motor performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a cross-sectional view of an embodiment of the motor of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

FIG. 4 is a schematic diagram of an embodiment of the junction box of the present invention with the top cover removed and the cables and external wires connected;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a cross-sectional view at M-M of FIG. 5;

fig. 7 is a view showing a connection structure of an insulating block, a second sealing member, and a connection terminal;

fig. 8 is a cross-sectional view of fig. 7.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a motor 100.

Referring to fig. 1 to 2, in some embodiments of the motor 100 of the present invention, the motor 100 includes a junction box 10, a motor main body 20, and a first sealing member 30, a wiring structure 11 is disposed in the junction box 10, and a wire passing hole 133 communicating with the interior is disposed on an outer wall of the junction box 10; the motor body 20 is provided with a cable 21 and a terminal 22, the terminal 22 is connected to a free end of the cable 21, and is inserted into the wire passing hole 133 and connected to the wiring structure 11, so that the cable 21 is isolated outside the terminal box 10; the first sealing member 30 is disposed around the terminal 22 and the wall of the wire hole 133 to isolate the moisture outside the terminal box 10 from entering the inside of the terminal box 10.

Specifically, in the present embodiment, the motor 100 includes a motor main body 20 and a terminal box 10, a stator winding is provided in the motor main body 20, the motor main body 20 further includes a cable 21 electrically connected to the winding, the cable 21 extends outwards from the inside of the motor main body 20 to be electrically connected to the terminal box 10, and is connected to an external power source through the terminal box 10 and grounded. Specifically, the junction box 10 includes a housing and a wiring structure 11 disposed in the housing, the motor main body 20 further includes a wiring terminal 22 connected to a free end of the cable 21, the wiring terminal 22 is electrically connected to the cable 21 and disposed in a wire passing hole 133 of the junction box 10 in a penetrating manner, one end of the wiring terminal 22 located in the junction box 10 is connected to the wiring structure 11, in some embodiments, the motor 100 is a three-phase motor 100, three cables 21 are disposed on the three-phase motor 100, at this time, three wire passing holes 133 are disposed on the junction box 10, and each cable 21 is disposed in one wire passing hole 133 in a penetrating manner. Binding post 22 is mostly conductive metal material, and its rigidity is higher than cable 21, and difficult buckling, deformation insert binding post 22 and establish in crossing line hole 133, can improve joint strength and stability between cable 21 and the terminal box 10, and simultaneously, binding post 22 inserts and establishes when crossing line hole 133, and cable 21 is located the terminal box 10 outside, has just avoided the inside steam of motor main part 20 to pass through inside space inflow terminal box 10 of cable 21. Further, set up first sealing member 30 between binding post 22 outer wall and the pore wall of crossing line hole 133 to seal the clearance between binding post 22 and the pore wall of crossing line hole 133, avoid outside steam to get into inside terminal box 10, so set up, alright appear the risk of condensation phenomenon in reducing terminal box 10, simultaneously, first sealing member can also play insulating effect, has improved motor 100's safety in utilization, guarantee motor 100 performance.

Usually, one end of the external connection wire 200 is inserted into the terminal box 10 and electrically connected to the connection terminal 22 through the connection structure 11, at this time, the connection structure 11 may be a connection metal bar 111, so that the connection terminal 22 and the external connection wire 200 are respectively connected to the connection metal bar 111, thereby achieving the electrical connection between the motor main body 20 and the external connection wire 200 through the connection metal bar 111, at this time, the insulation member 112 may be coated outside the connection metal bar 111, and only the connection position of the connection terminal 22 and the connection position of the external connection wire 200 are exposed, thereby improving the safety during the use process; of course, the connection structure 11 may also be a locking member, the connection terminal 210 is disposed at the end of the external connection wire 200, and the connection terminal 210 and the connection terminal 22 are fixedly connected by the locking member, so that the electric connection between the motor body 20 and the external connection wire 200 can be realized.

In this embodiment, the first sealing element 30 may be a sealing rubber or a sealing ring made of an elastic material, and the sealing rubber has fluidity to completely cover the gap between the terminal 22 and the wire passing hole 133, and can bond the terminal 22 and the terminal box 10, thereby improving the connection strength between the terminal 22 and the terminal box 10, and improving the position stability of the terminal 22. The sealing washer has elasticity, and the installation and the dismantlement of being convenient for, when the sealing washer dress between binding post 22 and cross line hole 133, receive binding post 22 outer wall and the extrusion production elastic deformation of crossing the line hole 133 pore wall, can laminate binding post 22 outer wall and cross line hole 133 pore wall completely, improve sealed effect.

Therefore, can understand, the technical scheme of the utility model, the cable 21 free end of motor main part 20 is connected with binding post 22, make binding post 22 wear to establish wiring structure 11 electricity in wire hole 133 position and the terminal box 10 of crossing of terminal box 10, thereby need not to insert cable 21 in terminal box 10, avoid the inside steam of motor main part 20 from the inside terminal box 10 that flows in of cable 21, and binding post 22's rigidity is higher than cable 21, the high non-deformable of connection stability, and then press from both sides between the pore wall of crossing wire hole 133 and binding post 22's outer wall and establish around the first sealing member 30 that sets up, seal the clearance between wire hole 133 and binding post 22, improve sealed effect, avoid outside steam to get into in the terminal box 10. That is, the technical scheme of the utility model, avoided terminal box 10 outside steam simultaneously from crossing the inside terminal box 10 that gets into of wire hole 133 and cable 21 to produce the risk of condensation in reducing terminal box 10, improve motor 100's safety in utilization, guarantee motor 100 performance.

In some embodiments, the junction box 10 further includes a waterproof plug, and the waterproof plug is sleeved on the external wire 200 and plugs the external wire 200 wiring hole on the casing 12 of the junction box 10, so as to prevent external water vapor from entering the inside of the junction box 10, and improve the safety of the junction box 10.

In some embodiments, the enameled wire of the motor main body 20 and the cable 21 are welded by resistance welding, the copper cross-sectional area of the cable 21 meets the current-carrying requirement of the motor 100, and the temperature resistance of the insulating sheath of the cable 21 meets the requirement of the motor 100. The position where the cable 21 is welded with the enameled wire is bound and fixed in the wire package, and the cable 21 is directly led out from a wire outlet point; it can be understood that, one end of the cable 21 is fixed in the coil formed by the enameled wire winding, and the coil is still subjected to the paint dipping process, and the surface of the coil has a paint film, so that hot air can be well prevented from entering the cable 21 and flowing out from the inner space of the cable 21, and the hot air in the motor main body 20 is further prevented from flowing into the junction box 10.

Referring to fig. 2, 4 to 8, in some embodiments of the motor 100 of the present invention, the junction box 10 includes a housing 12 and an insulating block 13, a mounting cavity 121 is formed in the housing 12, a mounting hole 122 communicating with the mounting cavity 121 is formed in a bottom wall of the housing 12, and the wiring structure 11 is disposed in the mounting cavity 121; the insulation block 13 is disposed in the mounting hole 122, and the wire passing hole 133 is disposed in the insulation block 13.

In this embodiment, the junction box 10 includes a housing 12 and an insulating block 13, a mounting cavity 121 for mounting the wiring structure 11 and the fixed wiring terminal 22 is formed in the housing 12, a mounting hole 122 communicating with the mounting cavity 121 is formed in the housing 12, and the insulating block 13 is blocked in the mounting hole 122 and is provided with the above-mentioned wire passing hole 133; it can be understood that the connection terminal 22 is respectively connected with the cable 21 and the wiring structure 11 to conduct the cable 21 and the wiring structure 11, that is, the connection terminal 22 is electrified, at this time, the arrangement of the insulation block 13 can avoid the outward dissipation of the electricity of the connection terminal 22, improve the use safety, and reduce the energy loss.

It should be noted that the connection relationship between the insulating block 13 and the housing 12 may be through a bolt connection, a snap connection, an adhesive connection, an interference fit between the insulating block 13 and the mounting hole 122, or a combination of any two or more connection relationships, which is not limited herein.

Referring to fig. 2 and 7, in some embodiments of the motor 100 of the present invention, the terminal box 10 further includes a second sealing member 14, and the second sealing member 14 is disposed around the insulating block 13 in a circumferential direction and is sandwiched between the hole wall of the mounting hole 122 and the outer sidewall of the insulating block 13.

In this embodiment, the terminal box 10 further includes a second sealing element 14, and the second sealing element 14 is interposed between the outer wall of the insulating block 13 and the hole wall of the mounting hole 122 to close a gap between the insulating block 13 and the hole wall of the mounting hole 122, so as to prevent external hot air from entering the inside of the terminal box 10. In this embodiment, the second sealing member 14 may be a sealant or a sealing ring made of an elastic material, and the sealant has fluidity so as to completely cover the gap between the insulating block 13 and the mounting hole 122 and can adhere the insulating block 13 and the housing 12, thereby improving the connection strength between the insulating block 13 and the housing 12. The sealing washer has elasticity, and the installation of being convenient for when the sealing washer dress between collets 13 and mounting hole 122, the extrusion that receives collets 13 lateral wall and mounting hole 122 pore wall produces elastic deformation, can laminate collets 13 lateral wall and mounting hole 122 pore wall completely, improves sealed effect.

Referring to fig. 7, in some embodiments of the motor 100 of the present invention, a first mounting groove 134 is formed on an outer side wall of the insulating block 13, the first mounting groove 134 is disposed around the insulating block 13 in a circumferential direction, and the second sealing element 14 is disposed in the first mounting groove 134 and protrudes out of the first mounting groove 134.

In this embodiment, the outer wall of the connection terminal 22 is provided with a first installation groove 134, the first installation groove 134 is circumferentially arranged along the circumferential direction of the insulation block 13, at this time, the second sealing element 14 is limited in the first installation groove 134, so as to improve the position stability of the second sealing element 14 and the connection strength between the second sealing element 14 and the insulation block 13, and avoid the second sealing element 14 from being displaced by axial friction force in the process of inserting the insulation block 13 into the installation hole 122; meanwhile, the second sealing element 14 protrudes out of the second sealing groove, so that the second sealing element 14 can be abutted against the hole wall of the mounting hole 122 to seal a gap between the hole wall of the mounting hole 122 and the outer wall of the insulating block 13, and the sealing effect is guaranteed.

Referring to fig. 2 and fig. 7, in some embodiments of the motor 100 of the present invention, the insulation block 13 includes a plug 131 and a stopper 132, the plug 131 is inserted into the mounting hole 122, and the plug 131 is provided with the wire passing hole 133; the stopping portion 132 is protruded from an outer sidewall of the plug 131, is located inside the housing 12, and abuts against an inner wall of the housing 12 located outside the mounting hole 122.

In this embodiment, the insulating block 13 includes a plug body 131 and a stopping portion 132 connected to each other, the plug body 131 is inserted into the mounting hole 122, the stopping portion 132 is protruded from an outer side wall of one end of the plug body 131 far away from the inside of the housing 12, and is located inside the housing 12, and abuts against an outer inner wall of the housing 12 to limit the insulating block 13, so as to prevent the insulating block 13 from coming out of the housing 12 to damage the sealing performance of the mounting cavity 121.

Referring to fig. 8, in some embodiments of the motor 100 of the present invention, the motor main body 20 has a plurality of cables 22 and a plurality of connection terminals 21, each cable 22 is connected to a corresponding connection terminal 21, the insulation block 13 is provided with a plurality of wire holes 133, and each connection terminal 22 is inserted into one of the wire holes 133.

It will be appreciated that in some embodiments, the motor 100 is a three-phase motor having three cables 21 disposed thereon, and there may also be a ground cable; in this embodiment, make a binding post 22 all connected to the free end of a plurality of cables 21 that set up in the motor main part, set up a plurality of wire holes 133 on insulating block 13, make each binding post 22 wear to establish in a wire hole 133 and be connected with the wiring structure 11 of terminal box 10 inside, so set up, only need set up an insulating block 13 and can fix a plurality of binding post 22, need not to set up a plurality of insulating blocks 13 and a plurality of second sealing member 14, reduce the assembly process, and improve assembly efficiency, and two arbitrary wiring ends, it is insulating through insulating block 13 between 22, avoid the short circuit phenomenon to appear, and the safety in utilization is improved. It can be understood that, in the conventional arrangement, the number of the wire passing holes 133 is the same as the number of the cables 21, and the number of the wire passing holes 133 may also be greater than the number of the cables 21, so as to be applicable to the motor main bodies 20 with different wire outgoing numbers, and improve the applicability of the junction box 10, at this time, the excessive wire passing holes 133 only need to be plugged by sealing plugs, sealing pastes or other sealing elements.

Referring to fig. 2, in some embodiments of the motor 100 of the present invention, the outer wall of the connection terminal 22 is provided with a second mounting groove 223, the second mounting groove 223 is disposed around the circumference of the connection terminal 22, and the first sealing element 30 is disposed in the second mounting groove 223 and protrudes out of the second mounting groove 223.

In this embodiment, the outer wall of the connection terminal 22 is provided with a second mounting groove 223, the second mounting groove 223 is circumferentially arranged along the circumferential direction of the connection terminal 22, at this time, the first sealing element 30 is limited in the second mounting groove 223, so as to improve the position stability of the first sealing element 30 and the connection strength between the first sealing element 30 and the connection terminal 22, and avoid axial friction displacement of the first sealing element 30 when the connection terminal 22 is inserted into the wire passing hole 133; meanwhile, the first sealing element 30 protrudes out of the first sealing groove, so that the first sealing element 30 can be abutted against the hole wall of the wire passing hole 133 to seal a gap between the hole wall of the wire passing hole 133 and the outer wall of the wiring terminal 22, and the sealing effect is guaranteed.

Referring to fig. 2, in some embodiments of the motor 100 of the present invention, the connection terminal 22 includes a body 221 and a connection portion 222, the body 221 is disposed through the wire passing hole 133, an end surface of the body 221 facing the outside of the junction box 10 is disposed with a receiving portion 224, the cable 21 is inserted into the receiving portion 224, and the first sealing element 30 is sandwiched between the body 221 and a hole wall of the wire passing hole 133; the wire connection portion 222 is located at least partially in the terminal box 10 at an end of the main body 221 facing the inside of the terminal box 10, and is connected to the wire connection structure 11.

In this embodiment, the connection terminal 22 includes the connection portion 222 and the body 221 that are connected, one end of the body 221 is open, the connection portion 222 is connected to the outer wall of one end of the body 221 that is away from the opening, the body 221 and the connection portion 222 are both made of conductive materials and can be copper or copper alloy, the cable 21 of the motor main body 20 is inserted into the receiving portion 224 of the body 221, and the cable core is made to contact with the body 221 to form an electrical connection, the arrangement of the body 221 increases the connection area between the connection terminal 22 and the cable 21, and improves the connection strength between the cable 21 and the connection terminal 22. And the body 221 may close the outlet of the cable 21 to prevent the hot air of the motor main body 20 from flowing out of the cable 21.

Referring to fig. 2, in some embodiments of the motor 100 of the present invention, the wire hole 133 includes a limiting section 1331 and a through hole section 1332, a hole diameter of the limiting section 1331 is greater than a hole diameter of the through hole section 1332, a cross-sectional area of the body 221 is greater than a cross-sectional area of the wire connection portion 222, the body 221 is inserted into the limiting section 1331 and abuts against a bottom wall of the limiting section 1331, and the wire connection portion 222 is inserted into the through hole section 1332.

In this embodiment, the wire through hole 133 includes a limiting section 1331 and a through hole section 1332 that are sequentially arranged from outside to inside, and the aperture of the limiting section 1331 is larger than that of the through hole section 1332, so that a limiting step is formed at the connection position of the limiting section 1331 and the through hole section 1332, and the limiting step is also the hole bottom wall of the limiting section 1331; meanwhile, the cross-sectional area of the body 221 of the connection terminal 22 is larger than the cross-sectional area of the connection part 222 and the cross-sectional area of the through hole section 1332, at this time, when the connection terminal 22 is inserted into the wire through hole 133, the connection part 222 penetrates out of the through hole section 1332 to enter the inside of the connection box 10 to be connected with the wiring structure 11, the body 221 is inserted into the limiting section 1331, the insertion end of the body 221 and the limiting step, namely, the hole bottom wall of the limiting section 1331, are prevented from completely inserting the connection terminal 22 into the connection box 10, and the cable 21 is prevented from entering the connection box 10, and the first sealing element 30 cannot play a sealing role, namely, through the arrangement of the limiting step, the connection stability of the connection terminal 22 and the connection terminal 10 and the position stability of the connection terminal 22 are improved, and the sealing effect on the connection box 10 is ensured.

In some embodiments of the present invention of the motor 100, the motor 100 further comprises a double-wall heat-shrinkable tube covering the connection position of the connection terminal 22 and the cable 21.

In this embodiment, use the pyrocondensation pipe as the protective sheath, be high elastic state under the heating state, and be heated the shrink, can make the outer wall of the complete laminating of the inner wall of pyrocondensation pipe at binding post 22 and cable 21, improve joint strength, and have sealed effect. Furthermore, the heat shrinkable tube is a double-wall heat shrinkable tube and comprises a soft cross-linked polyolefin outer layer and a hot melt adhesive inner layer, wherein the outer layer has the advantages of insulation, corrosion resistance, wear resistance and the like, and the inner layer has the advantages of low melting point, water resistance, sealing, high adhesion and the like; the connection strength between the cable 21 and the connection terminal 22 can be improved, the sealing performance can be improved, moisture can be prevented from entering the inner side of the cable 21, and hot air in the motor main body 20 can be prevented from entering the junction box 10 along the inner space of the cable 21 and being condensed to form condensation in the junction box 10.

Referring to fig. 1, in some embodiments of the motor 100 of the present invention, a wire hole is further formed on a wall surface of the junction box 10 for passing an external wire 200, and a central axis of the wire hole is perpendicular to a central axis of the wire hole 133.

It is understood that the motor 100 is connected to an external power source or ground through the terminal box 10, i.e., the connection terminal 22 of the motor main body 20 and the external connection wire 200 are electrically connected within the terminal box 10. At this time, the connection terminal 22 of the motor body 20 is inserted into the wire passing hole 133 and connected to the wiring structure 11 in the terminal box 10, and the external wire 200 is connected to the wiring structure 11 and then extends outward from the wire feeding hole of the terminal box 10, so that the connection terminal 22 is perpendicular to the external wire 200. It is common, terminal box 10 is fixed on the face of being qualified for the next round of competitions of motor main part 20, simplify binding post 22's structure, make binding post 22 directly insert and establish in terminal box 10 cross the line hole 133, can avoid cable 21 to expose, improve the safety in utilization, and the installation mouth of being convenient for user's wiring operation has been seted up more to one side of terminal box 10 back to motor main part 20, make external connection 200 perpendicular with binding post 22, make external connection 200 avoid the operation direction, avoid interfering with external connection 200 at the in-process of wiring operation, improve the operation portability.

Referring to fig. 1, in some embodiments of the motor 100 of the present invention, the wiring structure 11 includes a wiring metal bar 111 and an insulating member 112, the wiring metal bar 111 is disposed inside the terminal box 10 and is provided with a first connecting portion for connecting an external wire 200 and a second connecting portion for connecting the wiring terminal 22, the wiring hole is disposed toward the first connecting portion, and the wiring hole 133 is disposed toward the second connecting portion; the insulating member 112 covers the outside of the wiring metal bar 111, and exposes the first connection portion and the second connection portion.

In this embodiment, wiring structure 11 is including fixing wiring metal bar 111 in terminal box 10, be provided with first connecting portion and second connecting portion on the wiring metal bar 111, first connecting portion are used for connecting external connection 200, binding post 22 is connected to the second connecting portion, and make and walk the setting of line hole towards first connecting portion, cross the setting of line hole 133 towards second connecting portion, so set up, when binding post 22 with external connection 200 respectively from crossing line hole 133 and walk the line hole and insert in terminal box 10 time alright directly be connected with corresponding second connecting portion and first connecting portion, avoid external connection 200 to coil in terminal box 10, simplify binding post 22's structure. The wire hole 133 may be directly oriented toward the second connection portion, and the wire terminal 22 may be inserted into the second connection portion, or, as shown in the embodiment, may be oriented toward the area where the second connection portion is located, and the wire connection portion 222 of the wire terminal 22 is arranged opposite to the wire connection portion 222 when inserted into the junction box 10, and is connected by a screw. Similarly, the connection terminal 210 may be disposed at an end of the external connection wire 200, so that the connection terminal 210 and the first connection portion are connected by a screw, which is not limited herein.

Furthermore, in this embodiment, the insulating member 112 covers the exterior of the wiring metal bar 111, and only the first connecting portion and the second connecting portion are exposed, and the arrangement of the insulating member 112 can prevent a user from touching the wiring metal bar 111 by mistake in the wiring process to cause electric shock or short circuit, thereby improving the use safety.

Referring to fig. 1, fig. 3 and fig. 5, in some embodiments of the motor 100 of the present invention, the housing 12 is provided with a mounting opening communicated with the mounting cavity 121, the junction box 10 further includes a cover plate 15, and the cover plate 15 is covered on the mounting opening.

It can be understood that the motor 100 is connected to the external power source and the ground through the terminal box 10, and the connection terminal 22 of the cable 21 and the external connection wire 200 are inserted into the terminal box 10 and electrically connected through the connection structure 11, which requires manual connection. In this embodiment, the housing 12 is provided with a mounting opening communicated with the mounting cavity 121, the mounting opening faces to a connection position between the wiring structure 11 and the wiring terminal 22, so that a user can conveniently perform wiring in the mounting cavity 121, and meanwhile, the cover plate 15 is arranged to seal the mounting cavity 121 when wiring is not needed, so as to seal the mounting cavity 121.

It should be noted that, due to the diversification of the wiring structure 11, in some embodiments, the connection position between the wiring structure 11 and the external connection wire 200 and the connection position between the wiring structure 11 and the connection terminal 22 may face different directions, that is, a user does not need to perform wiring operation from different directions, at this time, a special tool may be used for operation, or a plurality of mounting ports may be formed on the housing 12 to respectively face different wiring positions, so as to facilitate the wiring operation of the user, and a cover plate 15 is provided on each mounting port to close the mounting cavity 121, so as to seal the mounting cavity 121. For example, in the illustrated embodiment, the terminal box 10 is mounted on the motor main body 20, a side of the terminal box 10 away from the motor main body 20 is a top, a connection position of the wiring structure 11 and the external connection 200 faces a top of the housing 12, and a connection position of the wiring structure 11 and the connection terminal 22 faces a side of the housing 12, at this time, a top mounting opening 123 is formed in the top of the housing 12 and is adapted to a top cover plate, a side mounting opening 124 is formed in the side of the housing 12 and is adapted to a side cover plate 15, so as to improve convenience of wiring for a user.

Referring to fig. 3, in some embodiments of the motor 100 of the present invention, the terminal box 10 further includes a third sealing element 16, and the third sealing element 16 is disposed around the circumferential direction of the mounting opening and is sandwiched between the cover plate 15 and the outer wall of the housing 12.

In this embodiment, the junction box 10 further includes a third sealing element 16, where the third sealing element 16 is disposed around the circumferential direction of the mounting opening, and is clamped between the cover plate 15 and the outer wall of the housing 12 to close a gap between the cover plate 15 and the housing 12, so as to prevent external hot air from entering the interior of the junction box 10. In the present embodiment, the third sealing element 16 may be a sealing rubber or a sealing ring made of an elastic material, and the sealing rubber has fluidity so as to completely cover the gap between the cover plate 15 and the housing 12 and to adhere the cover plate 15 and the housing 12, thereby improving the connection strength between the cover plate 15 and the housing 12. The sealing ring has elasticity, is convenient for install, when the sealing ring is installed between the cover plate 15 and the shell 12, is extruded by the cover plate 15 and the shell 12 to generate elastic deformation, can be completely attached to the cover plate 15 and the shell 12, and improves the sealing effect.

With further reference to fig. 3, in some embodiments, the outer wall of the housing 12 is formed with a third mounting groove 125, the third mounting groove 125 is disposed around the mounting opening, and the third sealing member 16 is disposed in the third mounting groove 125 and protrudes through the third mounting groove 125.

In this embodiment, the outer wall of the housing 12 is provided with a third mounting groove 125, the third mounting groove 125 is circumferentially arranged along the circumferential direction of the mounting opening, and at this time, the third sealing element 16 is limited in the third mounting groove 125, so as to improve the position stability of the third sealing element 16; meanwhile, the third sealing element 16 protrudes out of the third sealing groove, so that the third sealing element 16 can be abutted against the cover plate 15, a gap between the cover plate 15 and the shell 12 is sealed, and the sealing effect is guaranteed.

In some embodiments, the junction box 10 further includes a heat insulation pad attached to the inner side of the cover plate 15 for heat insulation. It can be understood that the condensation phenomenon is generated inside the junction box 10, and the condensation phenomenon is caused by the fact that the temperature outside the junction box 10 is lower and the junction box 10 is subjected to heat exchange, so that the junction box 10 is rapidly cooled to cause gas condensation, the heat transfer between the external environment and the junction box 10 can be reduced due to the arrangement of the heat insulation pad, and the condensation phenomenon caused by the fact that the junction box 10 is cooled to cause gas condensation is avoided.

It should be noted that, in some embodiments, the third sealing element 16 is disposed between the cover plate 15 and the housing 12, at this time, the third sealing element 16 and the heat insulation pad may be disposed in an integrated manner or disposed in a split manner, and may be made of different materials to have sealing and heat insulation effects, or may be made of the same material, for example, a rubber material with poor heat conductivity is used, and the rubber material has elasticity, and deforms when being pressed to adhere to the outer walls of the cover plate 15 and the housing 12, thereby achieving a good sealing effect.

Further, in some embodiments, the inner wall of the housing 12 is also provided with a thermal insulation pad to reduce heat transfer between the external environment and the junction box 10. And usually, the terminal box 10 is fixed on the motor main body 20, and the mounting opening and the cover plate 15 are arranged on one side departing from the motor main body 20, at this moment, heat transfer exists between the terminal box 10 contacted with the motor main body 20 and the motor main body 20, and at this moment, only one side of the cover plate 15 is required to be provided with a heat insulation pad.

The utility model discloses still provide a power assembly, including the motor 100 in aforementioned arbitrary embodiment, the concrete structure of motor 100 refers to aforementioned embodiment, does not do the perk here. The power assembly refers to a series of component assemblies which generate power on a vehicle and transmit the power to a road surface. Since the power assembly provided by the present application employs all technical solutions of all the aforementioned embodiments, at least all the beneficial effects brought by all the aforementioned technical solutions are provided, and details are not repeated herein.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. An electric machine, comprising:

2. The electric machine of claim 1, wherein the junction box comprises:

3. The motor of claim 2, wherein the junction box further comprises a second sealing element, the second sealing element is circumferentially arranged along the circumference of the insulating block and is clamped between the hole wall of the mounting hole and the outer side wall of the insulating block.

4. The motor of claim 2, wherein the motor body has a plurality of cables and a plurality of terminals, each cable is connected to a corresponding terminal, the insulating block defines a plurality of wire holes, and each terminal is inserted through one of the wire holes.

5. The motor according to claim 3, wherein the outer wall of the insulation block is formed with a first mounting groove, the first mounting groove is circumferentially disposed along the circumference of the insulation block, and the second sealing member is disposed in the first mounting groove and protrudes from the first mounting groove.

6. The motor of claim 1, wherein the wall surface of the junction box is further provided with a wire hole for passing an external wire, and the central axis of the wire hole is perpendicular to the central axis of the wire hole.

7. The electric machine of claim 6, wherein the wiring structure comprises:

8. The electric machine according to any one of claims 1 to 7, wherein the connection terminal comprises:

the body penetrates through the wire passing hole, a receiving part is formed in the end face, facing the outside of the junction box, of the body, and the cable is inserted into the receiving part; and

the wiring part is arranged at one end, facing the inside of the junction box, of the body, at least part of the wiring part is located inside the junction box, and the wiring part is connected with the wiring structure.

9. The motor according to claim 8, wherein the wire passing hole comprises a limiting section and a through hole section, the aperture of the limiting section is larger than that of the through hole section, the cross-sectional area of the body is larger than that of the wire connecting portion, the body is inserted into the limiting section and abuts against the bottom wall of the limiting section, and the wire connecting portion penetrates through the through hole section.

10. A drive assembly, characterized in that the drive assembly comprises an electric machine according to any one of claims 1-9.