CN218897140U - Junction box and motor - Google Patents

Abstract

The utility model relates to a junction box and a motor, wherein the junction box comprises a shell, a mounting cavity is arranged in the shell, a mounting hole for fixing an encoder is formed in the wall of the shell, and the mounting hole is communicated with the mounting cavity and the outside. The motor comprises the junction box. The technical scheme provided by the utility model aims to solve the technical problem of complex structure in the prior art.

Description

Junction box and motor

Technical Field

The utility model relates to the technical field of electric appliances, in particular to a junction box and a motor.

Background

Most of the motors on the market are three independent parts, namely an encoder mounting device, an encoder protecting device and a motor junction box, which clearly increases the number of the parts of the motors, the motor structure is more complex, the occupied space is larger, and the manufacturing cost is higher. Meanwhile, the manufacturing process and the mounting process of the motor are more complicated, and the production cost, the mounting efficiency and the later maintenance efficiency are influenced.

Disclosure of Invention

The utility model aims to provide a junction box and a motor with simple structures.

The technical scheme for solving the technical problems is as follows: the junction box comprises a shell, wherein a mounting cavity is formed in the shell, a mounting hole used for fixing an encoder is formed in the wall of the shell, and the mounting hole is communicated with the mounting cavity and the outside.

The beneficial effects of the utility model are as follows: the junction box can fix the encoder as a fixing structure of the encoder, so that the encoder and the junction box are integrated into a whole, the motor structure can be simplified, the manufacturing convenience of the motor is improved, and the manufacturing cost of the motor is reduced.

On the basis of the technical scheme, the utility model can be improved as follows.

One possible design, the shell includes lid and has open box body, the lid sets up to the closing cap the opening, the box body is including keeping away from the bottom plate of opening, the mounting hole sets up on the bottom plate.

One possible design is that the base plate is provided with a protruding annular rib on the side facing the opening, which annular rib is arranged around the edge of the mounting hole.

One possible design, the mounting hole sets up to arrange in the middle on the bottom plate, the installation intracavity is equipped with the mount pad that is used for fixed binding post, the mount pad sets up on the bottom plate and be in the periphery of mounting hole.

One possible design, the bottom plate is provided with a threading hole for the wire harness to pass out of the mounting cavity, and the threading hole is close to the mounting seat.

One possible design is that the box body further comprises a side wall which is enclosed into a ring shape, one end of the side wall is connected with the bottom plate, and the other end of the side wall is enclosed into the opening;

the side wall is connected with the box cover through a fastener; or one end of the box cover is rotationally connected with the side wall through a rotating shaft, and the other end of the box cover is connected with the side wall through a fastener.

One possible design, the terminal surface of keeping away from of lateral wall the bottom plate sets up to first terminal surface, first terminal surface with the lid laminating, first terminal surface is equipped with first recess.

One possible design is that a plurality of through fixing holes are formed in the bottom plate, and the fixing holes are uniformly distributed around the circumference of the bottom plate;

the bottom plate is provided with a protruding supporting rib on one side, back to the opening, of the bottom plate, and the supporting rib surrounds the periphery of the bottom plate to form a ring.

The utility model aims to provide a motor with a simple structure.

The technical scheme for solving the technical problems is as follows: the motor comprises a motor main body and an encoder, and further comprises the junction box, wherein the junction box is fixed on the motor main body, one end of the encoder is correspondingly connected with the mounting hole, and the junction box is arranged to fix and cover one end of the encoder.

The beneficial effects of the utility model are the same as those of the junction box, and are not repeated here.

One possible design, the encoder includes the stiff end, the stiff end set up to with the mounting hole grafting just stretches into in the installation cavity, the periphery of stiff end is equipped with the expander, the expander with the pore wall of mounting hole supports tightly.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a junction box according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the junction box of FIG. 1 in a disassembled state;

FIG. 3 is a first schematic view of the junction box of FIG. 1;

FIG. 4 is a schematic view in section B-B in FIG. 3;

FIG. 5 is an enlarged schematic view of a portion of FIG. 2;

FIG. 6 is an enlarged schematic view of a portion of FIG. 4 at C;

fig. 7 is a schematic diagram of a motor according to an embodiment of the utility model.

In the drawings, the list of components represented by the various numbers is as follows:

the novel multifunctional box comprises a box body, a box cover, a box body, a fastener 3, a side wall 4, a bottom plate 5, a mounting position 6, a mounting hole 7, an annular rib 8, a mounting seat 9, a threading hole 10, a fixing hole 11, a first end face 12, a screw hole 13, a first through hole 14, a supporting rib 15, a mounting cavity 16, a first groove 17, an encoder 18, a fixed end 19, an expansion ring 20, a casing 21 and an opening 22.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1, 2 and 7, the junction box according to the embodiment of the present utility model includes a hollow housing 21, wherein a hollow cavity in the housing 21 forms a mounting cavity 16, a housing wall of the housing 21 has a mounting position 6, and the mounting position 6 can fix the encoder 18, specifically, the mounting position 6 is a mounting hole 7, and the mounting hole 7 is a through hole in the housing wall, and the mounting hole 7 communicates with the outside and the mounting cavity 16. Therefore, the junction box can fix the encoder 18, and is used as a fixing structure of the encoder 18, so that the junction box and the encoder 18 are integrated into a whole, the motor structure can be simplified, the manufacturing convenience of the motor is improved, and the manufacturing cost of the motor is reduced.

As shown in fig. 2, the casing 21 may be divided into two parts, one part is a box cover 1, the other part is a box body 2, the box body 2 is a box structure with one side opened, an opening 22 is formed on one opened side, the outline of the box cover 1 is matched with the outline of the opening 22, the box cover 1 is installed at the opening 22, and the box body 2 is sealed, so that the junction box forms a sealed environment to protect electric devices therein.

As shown in fig. 2 to 5, the case 2 includes a side wall 4 and a plate-shaped bottom plate 5, wherein the side wall 4 is formed in a ring shape around the outer circumference of the bottom plate 5, and one end of the side wall 4 is connected to the bottom plate 5, and the side wall 4 is perpendicular to the bottom plate 5, so that the case 2 has a box-shaped structure with one side opened. In addition, the side wall 4 defines an opening 22 at an end far from the bottom plate 5, which matches the outline of the bottom plate 5, and notably the end face of the end is the first end face 12, that is, the first end face 12 is the end face far from the bottom plate 5 in the side wall 4, and when the box cover 1 is connected with the box body 2, the box cover 1 is attached to the first end face 12.

In some exemplary embodiments, as shown in fig. 2, the case body 2 and the case cover 1 are connected only by the fastener 3, wherein the fastener 3 is configured as a screw, the side wall 4 is provided with a plurality of screw holes 13 with internal threads on the first end surface 12, the plurality of screw holes 13 are uniformly arranged along the extending direction of the first end surface 12, and correspondingly, the case cover 1 is provided with the same number of first through holes 14 corresponding to the screw holes 13. Thus, when the box cover 1 is connected with the box body 2, the box cover 1 is attached to the first end face 12, and the fastener 3 penetrates through the first through hole 14 and is driven into the screw hole 13, so that stable connection between the box body 2 and the box cover 1 is formed.

In some exemplary embodiments, as shown in fig. 5, the side wall 4 has a recess on the first end surface 12, where a first groove 17 is provided, and the first groove 17 provides a space for a tool to extend into, so as to facilitate tilting the lid 1.

In some exemplary embodiments, the case body 2 and the case cover 1 are integrally connected through a rotating shaft (not shown in the drawings), so that the case body 2 and the case cover 1 are integrally formed, wherein one end of the case cover 1 has the rotating shaft, and the side wall 4 is provided with a shaft seat matched with the rotating shaft, so that the case cover 1 can be turned to change positions, thereby closing or opening the opening 22. The box body 2 and the box cover 1 are integrated, so that the number of parts is reduced, the transportation of the parts is convenient, and the later installation is also convenient. In addition, the end of the box cover 1 far away from the rotating shaft is further locked on the box body 2 through a fastener.

In some exemplary embodiments, the case body 2 is integrally connected to the case cover 1 through a rotation shaft (not shown), and the case cover 1 needs to be locked to the case body 2 through a fastening structure at an end far from the rotation shaft.

In some exemplary embodiments, as shown in fig. 2, 3, 4 and 6, the mounting hole 7 and the mounting seat 9 are disposed on the bottom plate 5, where the mounting hole 7 is a through hole, which penetrates the bottom plate 5, and the mounting hole 7 is located at a central position of the bottom plate 5, but is not limited thereto, for example, the mounting hole 7 is disposed near the side wall 4. In addition, the bottom plate 5 is provided with an annular rib 8 in a circular ring shape, the annular rib 8 is positioned on one side of the bottom plate facing the opening 22, the annular rib 8 is arranged at a position corresponding to the mounting hole 7, the inner diameter of the annular rib is consistent with the aperture of the mounting hole 7, the annular rib 8 surrounds the mounting hole 7, and the annular rib 8 and the mounting hole 7 form an inner hole structure. But is not limited thereto, for example, the base plate 5 may not be provided with the annular rib 8 and may have only the mounting hole 7.

As shown in fig. 2 and 4, the mounting base 9 is configured to fix a connection terminal (not shown) and is located at the outer periphery of the mounting hole 7, and the position thereof can be adjusted according to the required connection condition. The junction box needs to be connected with the connecting terminal through lead-in and lead-out cables, therefore, the bottom plate 5 is provided with the threading hole 10, the threading hole 10 is a through hole, the through hole penetrates through the bottom plate 5, the position of the through hole is close to the mounting seat 9, and the cables are conveniently led to the connecting terminal on the mounting seat 9. In addition, the side wall 4 may be provided with a threading hole 10 according to the extending direction of the cable, so that the wiring length of the cable can be shortened.

As shown in fig. 2, 3 and 6, the above-mentioned case 2 is required to be coupled to a motor main body (not shown) by screws, wherein the base plate 5 is coupled to the motor main body such that the opening 22 is outwardly directed for easy installation and removal. As shown in fig. 2 and 3, the bottom plate 5 is provided with a plurality of fixing holes 11, and the fixing holes 11 are through holes and uniformly distributed around the circumference of the mounting hole 7. When the box body 2 is connected with the motor main body, the fastener can enter the box body 2 from one side of the opening 22 of the box body and then penetrate through the fixing hole 11 to be driven into the motor main body. In addition, the bottom plate 5 is further provided with a supporting rib 15, the supporting rib 15 is positioned on the end surface of the bottom plate 5, which is opposite to the opening 22, the supporting rib 15 is annular, and extends along the circumferential direction of the bottom plate 5 by taking the mounting hole 7 as the center, and the supporting rib 15 is propped against the motor main body, so that a certain gap exists between the bottom plate 5 and the motor main body, and the tightness of screw connection is facilitated.

In some exemplary embodiments, as shown in fig. 7, a motor has a motor body (not shown) and an encoder 18 in addition to a junction box, which is connected to an immovable part of the motor body (not shown) by the above-described connection means, so that the junction box is stably fixed. Meanwhile, one end of the encoder 18 is connected to the mounting hole 7 such that the encoder 18 is positioned on a motor main body (not shown). Thus, the terminal box serves as a fixing structure for the encoder 18, and also covers the end of the encoder 18, thereby providing protection.

As shown in fig. 7, two ends of the encoder 18 are a fixed end 19 and a rotating end (not shown in the figure), wherein an expansion ring 20 is sleeved on the fixed end 19, and the expansion ring 20 can control the expansion degree by a screw on the expansion ring; the rotating end (not shown) is rotatable relative to the fixed end 19, which is connectable to a shaft structure on the motor. When the encoder 18 is connected with the junction box, the fixed end 19 is inserted into the mounting hole 7, the expansion ring 20 on the fixed end tightly abuts against the hole wall of the mounting hole 7, the encoder 18 is limited in the axial direction of the mounting hole 7, and the encoder 18 and the junction box are locked. In this state, the fixed end 19 extends partially into the mounting cavity, and the expansion ring 20 is also engaged with the annular rib.

In combination with the above embodiment, the junction box can fix the encoder 18 as a fixing structure of the encoder 18, so that the junction box and the encoder 18 are integrated into a whole, the motor structure can be simplified, the manufacturing convenience of the motor is improved, and the manufacturing cost of the motor is reduced. Meanwhile, after the box cover 1 and the box body 2 are assembled, a sealed space is formed, and the encoder 18 is arranged in the sealed cavity, so that the encoder 18 is protected.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. The junction box is characterized by comprising a shell, wherein an installation cavity is formed in the shell, an installation hole used for fixing an encoder is formed in the wall of the shell, and the installation hole is communicated with the installation cavity and the outside.

2. The junction box according to claim 1, wherein said housing comprises a cover and a box body having an opening, said cover being configured to cover said opening, said box body comprising a base plate remote from said opening, said mounting holes being provided on said base plate.

3. The junction box according to claim 2, wherein the bottom plate is provided with a protruding annular rib on a side facing the opening, the annular rib being provided around an edge of the mounting hole.

4. The junction box according to claim 2, wherein the mounting hole is arranged centrally on the base plate, and a mounting seat for fixing the junction terminal is provided in the mounting cavity, and the mounting seat is arranged on the base plate and is located at the periphery of the mounting hole.

5. The junction box of claim 4 wherein said base plate is provided with a threading aperture for a wiring harness to pass out of said mounting cavity, said threading aperture being adjacent said mounting seat.

6. The junction box according to claim 5, wherein said box body further comprises a side wall enclosing a ring shape, one end of said side wall being connected to said bottom plate, and the other end enclosing said opening;

the side wall is connected with the box cover through a fastener; or one end of the box cover is rotationally connected with the side wall through a rotating shaft, and the other end of the box cover is connected with the side wall through a fastener.

7. The junction box according to claim 6, wherein an end surface of the side wall away from the bottom plate is provided as a first end surface, the first end surface is attached to the box cover, and the first end surface is provided with a first groove.

8. The junction box according to any one of claims 2 to 7, wherein a plurality of through fixing holes are provided on the base plate, and the plurality of fixing holes are uniformly arranged circumferentially around the base plate;

the bottom plate is provided with a protruding supporting rib on one side, back to the opening, of the bottom plate, and the supporting rib surrounds the periphery of the bottom plate to form a ring.

9. An electric motor comprising a motor body and an encoder, further comprising a junction box according to any one of claims 1 to 8, said junction box being fixed to said motor body, one end of said encoder being correspondingly connected to said mounting hole, said junction box being arranged to fix and cover one end of said encoder.

10. The motor of claim 9, wherein the encoder comprises a fixed end which is inserted into the mounting hole and extends into the mounting cavity, and an expansion ring is arranged on the periphery of the fixed end and is abutted against the hole wall of the mounting hole.

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