CN221240201U

CN221240201U - Wire holder

Info

Publication number: CN221240201U
Application number: CN202322905897.XU
Authority: CN
Inventors: 肖永涛; 徐光逸; 杨林; 周立新
Original assignee: Wolong Zf Automobile Motor Co ltd; Wolong Electric Group Co Ltd
Current assignee: Wolong Zf Automobile Motor Co ltd; Wolong Electric Drive Group Co Ltd
Priority date: 2023-10-27
Filing date: 2023-10-27
Publication date: 2024-06-28
Anticipated expiration: 2033-10-27

Abstract

The application discloses a wire holder. The wiring seat comprises a base, an upper cover, a three-phase wiring row and wiring terminals, wherein the base is provided with an installation cavity, a first connecting hole and an opening, the opening is arranged at the top of the base and is communicated with the installation cavity, and the first connecting hole is arranged at the bottom of the base and is communicated with the installation cavity; the upper cover is arranged on the base and covers and seals the opening; the three-phase wiring row and the base are integrally formed, the three-phase wiring row is provided with a first wiring section positioned in the installation cavity and a second wiring section positioned outside the installation cavity, and the first wiring section is used for being connected with an external structure; the wiring terminal is connected to the second wiring section. The wire holder can solve the problem that insulation faults are easy to occur at the position of the three-phase wire connecting terminal of the motor in the prior art.

Description

Wire holder

Technical Field

The application relates to the technical field of driving devices, in particular to a wire holder.

Background

The problem of condensation in the junction box cavity of the motor can cause the motor to influence the normal operation of the motor. In the related art, in order to avoid condensation of a junction box of a motor, a structure in which the junction box is isolated from a housing of the motor is generally adopted. In this kind of structure, three-phase line penetrates the cavity of motor through setting up the wiring hole on the terminal box, can inevitably have the clearance between the pencil, when the interior hot air of motor cavity gets into in the terminal box from this gap, this hot air can take place the condensation phenomenon with the inside cold air contact of terminal box, lies in the inside three-phase line binding post's of terminal box exposed position department and takes place insulation failure easily, and then can cause the adverse effect to the normal operating of motor.

Disclosure of utility model

The application mainly aims to provide a wire holder to solve the problem that insulation faults are easy to occur at the position of a three-phase wire connecting terminal of a motor in the prior art.

According to an aspect of the present application, there is provided a wire holder comprising:

The base is provided with an installation cavity, a first connecting hole and an opening, the opening is arranged at the top of the base and is communicated with the installation cavity, and the first connecting hole is arranged at the bottom of the base and is communicated with the installation cavity;

the upper cover is arranged on the base and covers and seals the opening;

The three-phase wiring row is integrally formed with the base, and is provided with a first wiring section positioned in the mounting cavity and a second wiring section positioned outside the mounting cavity, and the first wiring section is used for being connected with an external structure;

and the wiring terminal is connected to the second wiring section.

Further, the three-phase wiring row further comprises two support sections, wherein the two support sections are respectively positioned at two ends of the second wiring section and buried on the base, so that the second wiring section is suspended in the mounting cavity;

The first wire connecting section is connected with the supporting section and is positioned outside the base.

Further, the three-phase wiring row comprises copper sheets.

Further, the three-phase wiring rows and the base are connected into a whole through an encapsulation injection molding mode.

Further, the wiring terminal is detachably connected to the second wiring section through a locking assembly.

Further, the locking assembly includes:

the locking screw is arranged on the second wire connecting section in a penetrating way;

The locking nut is embedded in the wiring terminal, and a threaded hole matched with the locking screw is formed in the locking nut.

Further, the wiring terminal comprises a horizontal section and a wiring terminal head, the locking nut is embedded on the horizontal section, and the wiring terminal head is connected to one end of the horizontal section and forms an included angle A with the horizontal section, wherein 0 degrees is more than or equal to A and less than 180 degrees.

Further, the wiring terminal is provided with a wiring hole, and the wiring terminal is at least partially inserted into the first connecting hole.

Further, a plurality of first lugs are arranged on the periphery of the base, a plurality of second lugs are arranged on the periphery of the upper cover, and the first lugs and the second lugs are arranged in one-to-one correspondence;

At least one of the first lug and the second lug is embedded with a connecting nut, and the first lug and the second lug are connected through a connecting screw penetrating through the connecting nut.

Further, a wire passing groove is formed in the top of the base, the wire passing groove is communicated with the mounting cavity to enable a preset wire harness to pass through, and the preset wire harness is fixed in the wire passing groove through sealant.

In the application, after the wire holder is arranged on the motor shell, the installation cavity on the wire holder and the cavity in the motor shell can form a communicated and closed cavity structure. Meanwhile, as the three-phase wiring row and the base are integrally formed, no installation gap exists between the three-phase wiring row and the base, the installation cavity on the base is isolated from the external environment, hot air in the motor can not be transmitted to the inside of the controller box body connected with the first connecting section of the three-phase wiring row through the wiring seat, the condensation phenomenon can not occur in the cavity where the wiring terminal and the second wiring section are located, insulation faults are not easy to occur at the exposed position of the wiring terminal, and the operation reliability of the motor and other structures can be improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

Fig. 1 is a perspective view of a wire holder according to an embodiment of the present application;

fig. 2 is a perspective view of a wire holder according to an embodiment of the present application with an upper cover removed;

FIG. 3 is a cross-sectional view of a wire holder according to an embodiment of the present application;

fig. 4 is a perspective view of a connection terminal according to an embodiment of the present application;

fig. 5 is an exploded view of a wire holder according to an embodiment of the present application.

Wherein the above figures include the following reference numerals:

10. a base; 11. a mounting cavity; 12. a first connection hole; 13. an opening; 14. a first lug; 141. a coupling nut; 15. a wire passing groove; 20. an upper cover; 21. a second lug; 30. three-phase wiring rows; 31. a first wire connecting section; 32. a second wire connecting section; 33. a support section; 40. a connection terminal; 41. a horizontal section; 42. a terminal block; 421. a wiring hole; 50. a locking assembly; 51. a locking screw; 52. a lock nut; 60. a connecting screw; 70. a screw; 80. and (5) a bolt.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1 to 5, according to an embodiment of the present application, there is provided a wire holder including a base 10, an upper cover 20, a three-phase wire row 30, and a wire connection terminal 40.

Wherein, the base 10 is provided with a mounting cavity 11, a first connecting hole 12 and an opening 13. Wherein, the opening 13 is arranged at the top of the base 10 and is communicated with the installation cavity 11, and the first connecting hole 12 is arranged at the bottom of the base 10 and is communicated with the installation cavity 11; the upper cover 20 is provided on the base 10 and covers and seals the opening 13; the three-phase wiring row 30 and the base 10 are integrally formed, and the three-phase wiring row 30 is provided with a first wiring section 31 positioned in the installation cavity 11 and a second wiring section 32 positioned outside the installation cavity 11, wherein the first wiring section 31 is used for being connected with an external structure (such as a controller and the like); the connection terminal 40 is connected to the second connection segment 32.

In practical use, the wire holder is first mounted on a structure requiring wiring, such as a motor. When the wire holder in the present embodiment is mounted on the motor, the wire holder may be mounted on the housing of the motor, the housing of the motor is provided with the wire hole, when the wire holder is mounted on the housing of the motor, the base 10 may cover and seal the wire hole on the housing of the motor, at this time, the first connection hole 12 provided on the base 10 may communicate with the wire hole, and the wire of the motor, such as the three-phase lead-out wire of the motor winding, may pass through the wire hole and the first connection hole 12 and be connected to the second wire segment 32 of the three-phase wire bar 30 through the wire connection terminal 40.

It can be seen that, when the wire holder in this embodiment is mounted on the motor housing, the mounting cavity 11 on the wire holder and the cavity in the motor housing can form a communicating and closed cavity structure. Meanwhile, since the three-phase wiring row 30 and the base 10 in the embodiment are integrally formed, no installation gap exists between the three-phase wiring row 30 and the base 10, no air convection can occur between the installation cavity 11 on the base 10 and the external environment, hot air in the motor can not be transmitted to the outside of the wiring seat through the wiring seat, the condensation phenomenon can not occur in the cavity where the second wiring segment 32 of the wiring terminal 40 and the three-phase wiring row 30 is located, and insulation faults are not easy to occur at the connection position of the wiring terminal 40 and the second wiring segment 32, so that the operation reliability of the motor and other structures can be improved.

Specifically, the base 10 in this embodiment is generally a cylindrical structure, the inner cavity of which forms the aforementioned mounting cavity 11, the top port of which forms the aforementioned opening 13, and the bottom opening of which forms the aforementioned first connecting hole 12. In actual use, the bottom end of the cylindrical structure is covered on the motor housing and other structures, and can be fixedly connected on the motor housing structure through screws 70 and the like. To avoid having a gap between the motor housing and the base 10, a sealing layer or the like may be provided at the bottom of the base 10 to seal the gap between the base 10 and the motor housing. Alternatively, the sealing layer may be a structural layer such as a sealant or a gasket. When adopting the sealant to seal the gap between base 10 and the motor housing, can set up the glue storage groove on the bottom of base 10 or the motor housing, be convenient for store glue, avoid glue to take place the overflow.

Illustratively, the base 10 in this embodiment may be a cubic cylinder, a cylindrical, an elliptical cylinder, or other regular or irregular cylindrical structures, and any other modification that can form the mounting cavity 11 inside to facilitate wiring is within the scope of the present application.

Further, in this embodiment, the main body of the wire holder is configured as two parts of the base 10 and the upper cover 20, so that the disassembly and assembly are convenient for installing the structures such as the wire connecting terminal 40, and when the wire connecting terminal is actually installed, the upper cover 20 is opened, so that the wire connecting tool and the like can be extended into the installation cavity 11 from the opening 13 to operate.

In addition, by integrally molding the three-phase wiring row 30 with the base 10, the structure of the present embodiment is more convenient for mounting the wiring terminal 40 than the manner in which the three-phase wiring row 30 is integrally formed with the upper cover 20. When the wire is specifically connected, the upper cover 20 is opened, at this time, the wire harness of the motor and other structures can enter the installation cavity 11 from the first connecting hole 12, and then, the wire harness of the motor can be fixedly connected to the second wire connecting section 32 of the three-phase wire connecting row 30 through the locking structure, the wire harness of the motor and other structures, and then, the upper cover 20 is covered, so that the operation is simple and the installation is convenient.

In order to facilitate the stable connection of the base 10 and the upper cover 20 together, the outer periphery of the base 10 is further provided with a plurality of first lugs 14, correspondingly, the outer periphery of the upper cover 20 is provided with a plurality of second lugs 21, and the first lugs 14 are arranged in one-to-one correspondence with the second lugs 21; in actual design, at least one of the first lug 14 and the second lug 21 is embedded with a connecting nut 141, and when assembled, the first lug 14 and the second lug 21 are connected by a connecting screw 60 penetrating through the connecting nut 141. In this embodiment, the connecting nut 141 is embedded in the first lug 14 and the second lug 21, so that the occupied space of the connecting nut 141 in the height direction of the wire holder can be reduced, and the miniaturized design of the wire holder can be realized conveniently. In other embodiments of the present application, the base 10 and the upper cover 20 may be connected by a structure such as a buckle, and any other modification forms under the concept of the present application are within the scope of the present application.

Further, the top of the base 10 in the present embodiment is provided with a wire passing groove 15, and the wire passing groove 15 communicates with the installation cavity 11 for passing a predetermined wire harness, and the predetermined wire harness is fixed in the wire passing groove 15 by sealant. In this embodiment, the wire passing groove 15 is formed in the base 10, so that a wire harness with a structure such as a temperature sensor can conveniently pass through the wire passing groove 15, and when the wire harness passes through the wire passing groove 15, the wire harness is sealed by sealant, so that an external environment is conveniently isolated from the installation cavity 11 on the wire holder, and external water vapor is prevented from entering the installation cavity 11.

Optionally, a sealing layer (not shown in the drawings) is provided between the upper cover 20 and the base 10 in this embodiment, and sealing of the gap between the upper cover 20 and the base 10 is facilitated by the action of the sealing layer. Optionally, the sealing layer in this embodiment may be a sealing glue layer or may be a sealing ring or other structures, and in the present application, the sealing glue is preferably used, so that the sealing effect is better. When the gap between the base and the upper cover 20 is sealed by adopting the sealant, a glue storage groove can be formed in the base 10 or the upper cover 20, so that glue can be stored conveniently, and overflow of the glue is avoided.

Referring to fig. 1 to 5 again, the three-phase wiring row 30 in this embodiment includes a UVW three-phase wiring row, and this three-phase wiring row 30 includes conductive sheet structures such as copper sheet, aluminum sheet, and during actual processing, this three-phase wiring row 30 is connected as an organic wholely through the mode of rubber coating injection molding between the base 10, and structural strength is high, and stability is good, and in the position department that three-phase wiring row 30 worn out installation cavity 11, no gap appears between three-phase wiring row 30 and the base 10, can separate external environment and the inside cavity of base 10 well.

Further, the three-phase wiring line 30 in the embodiment further includes a support section 33, the support section 33 is two sections, and the two support sections 33 are respectively located at two ends of the second wiring section 32 and buried on the base 10, so that the second wiring section 32 is suspended in the installation cavity 11; the first wire segment 31 is connected to the support segment 33 and is located outside the base 10. That is, in the present embodiment, two ends of the second wire connecting segment 32 of the three-phase wire connecting row 30 are integrally injection-molded and fixed on the base 10, and the second wire connecting segment 32 is suspended in the mounting cavity 11, so that the mounting stability and the structural strength of the second wire connecting segment 32 in the mounting cavity 11 can be enhanced, and the connection of the wire connecting terminal 40 to the second wire connecting segment 32 is facilitated.

Further, the connection terminal 40 is detachably connected to the second connection segment 32 through the locking assembly 50, and the detachment and connection of the wire harness can be performed according to specific requirements. Specifically, the locking assembly 50 includes a locking screw 51 and a locking nut 52. The locking screw 51 is arranged on the second connecting line segment 32 in a penetrating way; the lock nut 52 is embedded in the terminal 40, and a threaded hole adapted to the lock screw 51 is provided in the lock nut 52. The terminal 40 is stably fixed to the second wire segment 32 by the engagement of the locking screw 51 and the locking nut 52. Meanwhile, in this embodiment, the lock nut 52 is embedded in the wiring terminal 40, so that the occupied space of the lock nut 52 in the installation cavity 11 can be saved, and the miniaturized design of the wiring seat can be realized.

Further, the connection terminal 40 in the present embodiment includes a horizontal section 41 and a connection terminal 42, the horizontal section 41 is embedded with the lock nut 52, the connection terminal 42 is provided with a connection hole 421, and the connection terminal 42 is connected to one end of the horizontal section 41 and forms an included angle a with the horizontal section 41, where 0 ° < a < 180 °, for example 30 °, 60 °, 90 °, 150 °, etc. That is, the terminal head 42 of the terminal 40 in the present embodiment is disposed inclined to the horizontal section 41, and compared with the manner that the terminal head 42 and the horizontal section are in the same horizontal plane, the manner of disposing the terminal 40 in the present embodiment can save the space in the width direction of the mounting cavity 11, and is more suitable for compact arrangement of the terminal holder. In actual installation, the terminal head 42 is provided with a wiring hole 421 for connection with a wire, and the terminal head 42 is at least partially inserted into the first connection hole 12. That is, the terminal 42 may extend into the first connecting hole 12, so that the space of the terminal 42 occupying the height direction of the mounting cavity 11 may be saved, and the terminal holder may be further smaller.

As can be seen from the above description, the three-phase lead-out terminal of the motor winding is completely isolated from the external environment, such as the controller box (the wire harness of the controller is connected with the first wire segment 31 of the three-phase wire row 30 and the wire harness of the controller is connected with the first wire segment 31 through the bolt 80) through the compact wire holder, which is equivalent to completely isolating the controller box from the internal cavity of the motor, so as to prevent the hot air inside the motor body from contacting with the cold air at the position of the external controller box, thereby ensuring that the water vapor does not reach the wire terminal 40 and completely avoiding the adverse effect of condensation phenomenon on the insulation of the motor. In addition, the inside of the wire holder is compact and compact in structure, and the axial space of the motor is greatly saved. The parts of the wire holder are in mechanical assembly relation, so that the wire holder is convenient to disassemble, recycle or maintain in later period.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wire holder, comprising:

The base (10), be provided with installation cavity (11), first connecting hole (12) and opening (13) on base (10), opening (13) set up in the top of base (10) and with installation cavity (11) intercommunication, first connecting hole (12) set up in the bottom of base (10) and with installation cavity (11) intercommunication;

An upper cover (20), the upper cover (20) being provided on the base (10) and covering and sealing the opening (13);

The three-phase wiring row (30) is integrally formed with the base (10), the three-phase wiring row (30) is provided with a first wiring section (31) positioned in the installation cavity (11) and a second wiring section (32) positioned outside the installation cavity (11), and the first wiring section (31) is used for being connected with an external structure;

-a connection terminal (40), said connection terminal (40) being connected to said second connection section (32).

2. The wire holder according to claim 1, wherein the three-phase wire row (30) further comprises a support section (33), the support section (33) is two sections, and the two support sections (33) are respectively located at two ends of the second wire section (32) and buried on the base (10), so that the second wire section (32) is suspended in the mounting cavity (11);

The first wire section (31) is connected to the support section (33) and is located outside the base (10).

3. The wire holder according to claim 1, characterized in that the three-phase wire row (30) comprises copper sheets.

4. The wire holder according to claim 1, characterized in that the three-phase wire row (30) and the base (10) are integrally connected by means of over-molding.

5. The connector holder according to claim 1, wherein the terminal (40) is detachably connected to the second connector segment (32) by a locking assembly (50).

6. The wire holder according to claim 5, wherein the locking assembly (50) comprises:

The locking screw (51) is penetrated on the second connecting line segment (32);

The locking nut (52) is embedded in the wiring terminal (40), and a threaded hole matched with the locking screw (51) is formed in the locking nut (52).

7. The wire holder according to claim 6, wherein the wire connection terminal (40) comprises a horizontal section (41) and a wire connection terminal (42), the horizontal section (41) is embedded with the lock nut (52), the wire connection terminal (42) is connected to one end of the horizontal section (41) and forms an included angle a with the horizontal section (41), wherein 0 degree

＜A＜180°。

8. The wire holder according to claim 7, characterized in that the wire terminal (42) is provided with a wire connection hole (421), and the wire terminal (42) is at least partially inserted into the first connection hole (12).

9. The wire holder according to any one of claims 1 to 8, characterized in that a plurality of first lugs (14) are provided on the outer periphery of the base (10), a plurality of second lugs (21) are provided on the outer periphery of the upper cover (20), and the first lugs (14) are provided in one-to-one correspondence with the second lugs (21);

At least one of the first lug (14) and the second lug (21) is embedded with a connecting nut (141), and the first lug (14) and the second lug (21) are connected through a connecting screw (60) penetrating through the connecting nut (141).

10. The wire holder according to any one of claims 1 to 8, characterized in that a wire passing groove (15) is provided at the top of the base (10), the wire passing groove (15) being in communication with the mounting cavity (11) for a predetermined wire harness to pass through, the predetermined wire harness being fixed in the wire passing groove (15) by a sealant.