CN219204309U - Motor with a motor housing - Google Patents

Abstract

The application relates to a motor, which comprises an end cover and a printed circuit board, wherein the end cover is provided with an inner cavity, and the inner wall of the end cover is provided with a positioning groove; the printed circuit board is located the inner chamber of end cover, and the side wall that the printed circuit board kept away from the end cover centre of a circle is provided with the locating piece, and the locating piece is located the constant head tank. The positioning blocks extend into the positioning grooves, so that the installation stability of the printed circuit board and the end cover can be improved, the inclination of the printed circuit board is avoided, the loss of the motor is reduced, the repairing time is shortened, and the production efficiency is improved.

Description

Motor with a motor housing

Technical Field

The application relates to the technical field of air conditioners, in particular to a motor.

Background

The PG motor for household air conditioner is one AC plastic package motor with speed regulated by means of SCR and has mainly one Hall end cover assembly, one stator assembly and one rotor assembly. When the motor is assembled, all parts are prepared, the rotor is installed in the stator, the printed circuit board of the Hall assembly penetrates through the rotor shaft and the bearing and is placed on the convex groove of the stator assembly, and finally the end cover is pressed in to fix the Hall plate.

During installation, the printed circuit board relies on four angles to stabilize the stability of hall subassembly, but owing to do not have fixed screens, so hall subassembly can sometimes lead to printed circuit board one corner to warp or whole slope because of the natural gravity of its power cord, need the operator to recover again during the installation and carry out the end cover again and impress, increase motor installation man-hour, and impress the end cover when printed circuit board inclines, probably cause hall subassembly to damage, increase motor loss and during the repair, reduce production efficiency.

Disclosure of Invention

An object of the application is to provide a motor, and this motor includes end cover and printed circuit board, through the constant head tank that stretches into the end cover with the locating piece of printed circuit board department, can improve the stability of printed circuit board and end cover installation, avoids the printed circuit board slope, reduces the loss of motor and reprocess man-hour, improves production efficiency.

To this end, an embodiment of the present application provides an electric machine, including: the end cover is provided with an inner cavity, and the inner wall of the end cover is provided with a positioning groove; the printed circuit board is positioned in the inner cavity of the end cover, a positioning block is arranged on the side wall, away from the center of the end cover, of the printed circuit board, and the positioning block is positioned in the positioning groove.

In one possible implementation, the positioning groove comprises a first groove, a second groove and a third groove which are arranged on the inner wall of the end cover at intervals; the positioning block comprises a first block, a second block and a third block which are arranged on the side wall of the printed circuit board at intervals, and the first block, the second block and the third block respectively extend into the first groove, the second groove and the third groove in sequence.

In one possible implementation, the first groove includes a first transition groove and a first fixing groove that are in communication with each other, the first fixing groove extending along a circumferential direction of the end cover, the first transition groove extending along an axial direction of the end cover.

In one possible embodiment, the first fastening groove tapers in width away from the first transition groove.

In one possible implementation, the second groove includes a second transition groove and a second fixing groove that are communicated with each other, the second fixing groove extends along a circumferential direction of the end cover, the second transition groove is in a fan shape, and a length of the second fixing groove is greater than a length of the second transition groove.

In one possible implementation, the first transition groove is located at an end of the first fixed groove facing the second fixed groove, and a large end of the second transition groove faces the first transition groove.

In one possible implementation, the first transition groove is located at an end of the first fixed groove facing away from the second fixed groove, and a large end of the second transition groove facing away from the first transition groove.

In one possible implementation, the length of the third slot is greater than the length of the third block.

In one possible implementation, the outer peripheral sides of the printed circuit board are arranged in an arc shape, and the outer peripheral sides of the first block, the second block and the third block are arranged in an arc shape.

In one possible implementation manner, the printed circuit board is an arc board, and the first block and the third block are respectively located at two ends of the printed circuit board.

The motor provided by the embodiment of the application comprises an end cover and a printed circuit board, wherein the end cover is provided with an inner cavity, and the inner wall of the end cover is provided with a positioning groove; the printed circuit board is located the inner chamber of end cover, and the side wall that the printed circuit board kept away from the end cover centre of a circle is provided with the locating piece, and the locating piece is located the constant head tank. The positioning blocks extend into the positioning grooves, so that the installation stability of the printed circuit board and the end cover can be improved, the inclination of the printed circuit board is avoided, the loss of the motor is reduced, the repairing time is shortened, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. In addition, in the drawings, like parts are designated with like reference numerals and the drawings are not drawn to actual scale.

Fig. 1 shows a schematic structural diagram of an electric motor according to an embodiment of the present application;

fig. 2 shows a schematic structural diagram of a printed circuit board according to an embodiment of the present application;

fig. 3 is a schematic structural diagram showing connection between a printed circuit board and an end cover according to an embodiment of the present application;

fig. 4 shows a second schematic structural diagram of connection between a printed circuit board and an end cover according to an embodiment of the present disclosure;

FIG. 5 shows a schematic structural view of an end cap according to an embodiment of the present application;

FIG. 6 shows a schematic structural view of the first groove of the portion A of FIG. 5;

FIG. 7 shows a schematic structural view of a second groove of the portion B of FIG. 5;

FIG. 8 illustrates a cross-sectional view of an end cap provided in an embodiment of the present application;

fig. 9 is a schematic view showing the structure of the first fixing groove of the C part of fig. 8.

Reference numerals illustrate:

1. an end cap; 111. a first groove; 1111. a first transition groove; 1112. a first fixing groove; 112. a second groove; 1121. a second transition groove; 1122. a second fixing groove; 113. a third groove; 2. a printed circuit board; 21. a positioning block; 211. a first block; 212. a second block; 213. a third block; 22. and a power supply line.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

As shown in fig. 1 to 4, fig. 1 shows a schematic structural diagram of an electric motor according to an embodiment of the present application. Fig. 2 shows a schematic structural diagram of a printed circuit board provided in an embodiment of the present application, fig. 3 shows a first schematic structural diagram of a connection between a printed circuit board and an end cover provided in an embodiment of the present application, and fig. 4 shows a second schematic structural diagram of a connection between a printed circuit board and an end cover provided in an embodiment of the present application.

The embodiment of the application provides a motor, which comprises an end cover 1 and a printed circuit board 2, wherein the end cover 1 is provided with an inner cavity, and the inner wall of the end cover 1 is provided with a positioning groove; the printed circuit board 2 is located the inner chamber of end cover 1, and the lateral wall that printed circuit board 2 kept away from the centre of a circle of end cover 1 is provided with locating piece 21, and locating piece 21 is located the constant head tank.

It should be understood that the printed circuit board 2 is connected with the power line 22 of the hall module, and the power line 22 is connected with any position of the middle or end of the printed circuit board 2. During installation, the printed circuit board 2 is placed into the inner cavity of the end cover 1, then the positioning block 21 stretches into the positioning groove, so that the printed circuit board 2 is clamped with the end cover 1, then the power line 22 is aligned with a wire outlet of the stator assembly to be positioned, and the power line is pressed into the end cover 1, so that the motor is assembled.

This application stretches into the setting that the constant head tank carries out the block through locating piece 21, is connected printed circuit board 2 and end cover 1, and for current four angular positions through printed circuit board 2 accept in end cover 1, the printed circuit board 2 of this application is more stable with the connection of end cover 1, can not lead to the fact printed circuit board 2 to take place the slope because of the gravity of power cord 22, reduces operator's working strength, improves work efficiency. The end cover 1 and the printed circuit board 2 are simple in installation structure, not easy to loosen, good in producibility and reliability, easy to popularize and use, capable of reducing the material consumption of the Hall assembly and improving the competitiveness of motor products.

Further, the connection between the positioning block 21 and the outer side of the printed circuit board 2 may be formed integrally, or may be welded, where the outer side of the printed circuit board 2 refers to the side of the printed circuit board 2 away from the center of the end cap 1. The number of the positioning grooves is equal to that of the positioning blocks 21, and the number of the positioning grooves and the positioning blocks 21 can be one or a plurality. In one example, the positioning groove is provided with one, the positioning groove extends along the circumference of the inner wall of the end cover 1, the positioning block 21 is provided with one, and the positioning block 21 can be in an arc shape or a square shape, and the positioning block 21 is not provided in the shape of the positioning block 21 so that the positioning block 21 stretches into the end cover 1.

In one example, two positioning grooves are formed in the middle of the printed circuit board 2 at intervals, two positioning blocks 21 can be located at two ends of the printed circuit board 2 respectively, one positioning block 21 can be arranged at one end of the printed circuit board 2, and the other positioning block 21 is arranged in the middle of the printed circuit board 2.

Referring to fig. 2-9, fig. 5 illustrates a schematic structural diagram of an end cap according to an embodiment of the present application. Fig. 6 illustrates a schematic structure of a first groove of the portion a of fig. 5, fig. 7 illustrates a schematic structure of a second groove of the portion B of fig. 5, fig. 8 illustrates a cross-sectional view of an end cap provided in an embodiment of the present application, and fig. 9 illustrates a schematic structure of a first fixing groove of the portion C of fig. 8.

In some alternative embodiments, the positioning groove comprises a first groove 111, a second groove 112 and a third groove 113 which are arranged on the inner wall of the end cover 1 at intervals; the positioning block 21 includes a first block 211, a second block 212 and a third block 213 which are disposed on the side wall of the printed circuit board 2 at intervals, and the first block 211, the second block 212 and the third block 213 sequentially extend into the first groove 111, the second groove 112 and the third groove 113, respectively.

The first, second and third grooves 111, 112 and 113 are circumferentially spaced along the inner wall of the cap 1, and the first, second and third blocks 211, 212 and 213 are sequentially spaced along the outer wall of the printed circuit board 2. The shapes of the first block 211, the second block 212, and the third block 213 may be the same or different, and the shapes of the first block 211, the second block 212, and the third block 213 are not limited in the present application; the first block 211, the second block 212, and the third block 213 may be located in the middle of the printed circuit board 2, or the first block 211 and the third block 213 may be located at two ends of the printed circuit board 2, and the second block 212 is located in the middle of the printed circuit board 2, which is not limited in the positions of the first block 211, the second block 212, and the third block 213.

The first, second and third blocks 211, 212 and 213 sequentially extend into the first, second and third grooves 111, 112 and 113, respectively, to further improve the connection stability of the printed circuit board 2 and the cap 1.

In some alternative embodiments, the length of third slot 113 is greater than the length of third block 213. Thereby facilitating the extension of the third block 213 into the third slot 113 and the third block 213 can be moved in the third slot 113 after extending into the third slot 113, so that the second block 212 and the first block 211 can better extend into the second slot 112 and the first slot 111.

In some alternative embodiments, the first groove 111 includes a first transition groove 1111 and a first fixing groove 1112 that are in communication with each other, the first fixing groove 1112 extending in the circumferential direction of the end cap 1, and the first transition groove 1111 extending in the axial direction of the end cap 1. The first transition groove 1111 extends in the axial direction of the end cap 1, and when the first piece 211 is inserted into the first groove 111, the first piece 211 is movable in the axial direction of the end cap 1 in the first transition groove 1111, and the first fixing groove 1112 communicates with the first transition groove 1111, that is, the first piece 211 is movable from the first transition groove 1111 into the first fixing groove 1112, or from the first fixing groove 1112 into the first transition groove 1111, the first fixing groove 1112 extends in the circumferential direction of the end cap 1, that is, the first piece 211 is movable in the first fixing groove 1112 in the circumferential direction of the end cap 1.

In installation, the third piece 213 is inserted into the third slot 113, at this time, the first piece 211 is inserted into the first transition slot 1111, so that the first piece 211 is driven to move in the first transition slot 1111 along the axial direction of the end cap 1, the first piece 211 is moved into the first fixing slot 1112, and then the first piece 211 can move in the first fixing slot 1112 along the circumferential direction of the end cap 1, thereby inserting the first piece 211 into the first slot 111, and connecting the first piece 211 with the end cap 1. In disassembly, the first block 211 is moved from the first fixing groove 1112 into the first transition groove 1111, and then the first block 211 is taken out of the first transition groove 1111.

The first transition groove 1111 is located on a side of the end cover of the first fixing groove 1112 facing the stator assembly, or the first transition groove 1111 is located on a side of the end cover of the first fixing groove 1112 facing away from the stator assembly, which is not limited herein. In one example, the first transition slot 1111 is located on a side of the end cap of the first stationary slot 1112 facing the stator assembly.

In some alternative embodiments, the width of the first fixing groove 1112 decreases gradually away from the first transition groove 1111. After the first block 211 moves from the first transition groove 1111 to the first fixing groove 1112, the first block 211 moves away from the first transition groove 1111 in the first fixing groove 1112, and the width of the first fixing groove 1112 away from the first transition groove 1111 is gradually reduced, so that the stability of the first block 211 in the first fixing groove 1112 is further improved, and the stability of the connection between the printed circuit board 2 and the end cover 1 is further improved.

In some alternative embodiments, the second groove 112 includes a second transition groove 1121 and a second fixing groove 1122 that are communicated with each other, the second fixing groove 1122 extending along the circumferential direction of the end cap 1, the second transition groove 1121 being in the shape of a fan, the length of the second fixing groove 1122 being greater than the length of the second transition groove 1121.

The second transition slot 1121 is fan-shaped, i.e., the second block 212 is rotatable in the second transition slot 1121, and the second fixed slot 1122 is in communication with the second transition slot 1121, i.e., the second block 212 is movable from the second transition slot 1121 into the second fixed slot 1122, and also from the second transition slot 1121 into the second fixed slot 1122.

When the third block 213 is installed, the second block 212 is inserted into the second transition slot 1121, and the second block 212 is driven to rotate in the second transition slot 1121, so that the second block 212 is moved into the second fixing slot 1122, and the second block 212 can move in the second fixing slot 1122 along the circumferential direction of the end cover 1, thereby fixing the second block 212 in the second slot 112, and connecting the second block 212 with the end cover 1. When the second block 212 is removed, the second block 212 is moved from the second fixing groove 1122 into the second transition groove 1121, and then the second block 212 is taken out of the second transition groove 1121.

Wherein, the second transition slot 1121 may be located at a side of the end cap of the second fixed slot 1122 facing the stator assembly, and the second transition slot 1121 may also be located at a side of the end cap of the second fixed slot 1122 facing away from the stator assembly. But the position orientation of the second transition slot 1121 is the same as the position orientation of the first transition slot 1111. In one example, the first transition slot 1111 is located on a side of the end cap of the first fixed slot 1112 facing the stator assembly, and the second transition slot 1121 may be located on a side of the end cap of the second fixed slot 1122 facing the stator assembly.

In some alternative embodiments, the first transition slot 1111 is located at an end of the first fixing slot 1112 facing the second fixing slot 1122, and the large end of the second transition slot 1121 is facing the first transition slot 1111. That is, when the third block 213 is positioned in the third groove 113, the second block 212 is driven to rotate in the second transition groove 1121 such that the second block 212 protrudes into the second fixing groove 1122; the first block 211 is driven to move in the first transition groove 1111, so that the first block 211 extends into the first fixing groove 1112, and then the printed circuit board 2 is rotated along the circumferential direction of the end cover 1, so that the first block 211, the second block 212 and the third block 213 simultaneously rotate towards the first fixing groove 1112, so that the first block 211 extends into the small end of the first fixing groove 1112, and the second block 212 is in the second fixing groove 1122, so that the connection between the printed circuit board 2 and the end cover 1 is completed.

In some alternative embodiments, the first transition slot 1111 is located at an end of the first fixed slot 1112 facing away from the second fixed slot 1122, and the large end of the second transition slot 1121 facing away from the first transition slot 1111. That is, when the third block 213 is positioned in the third groove 113, the second block 212 is driven to rotate in the second transition groove 1121 such that the second block 212 protrudes into the second fixing groove 1122; the first block 211 is driven to move in the first transition groove 1111, so that the first block 211 extends into the first fixing groove 1112, and then the printed circuit board 2 is rotated along the circumferential direction of the end cover 1, so that the first block 211, the second block 212 and the third block 213 simultaneously rotate towards the third groove 113, so that the first block 211 extends into the small end of the first fixing groove 1112, and the second block 212 is in the second fixing groove 1122, so that the connection of the printed circuit board 2 and the end cover 1 is completed.

In some alternative embodiments, the outer peripheral sides of the printed circuit board 2 are arranged in an arc shape, and the outer peripheral sides of the first block 211, the second block 212, and the third block 213 are arranged in an arc shape. The printed circuit board 2 can be in a circular ring shape or an arc plate shape, so that the printed circuit board 2 can conveniently extend into the inner cavity of the end cover 1. The outer peripheral sides of the first block 211, the second block 212 and the third block 213 are arranged in an arc shape, so that the first block 211 is conveniently extended into the first groove 111, the second block 212 is extended into the second groove 112, and the third block 213 is extended into the third groove 113.

In some alternative embodiments, the printed circuit board 2 is an arc board, and the first block 211 and the third block 213 are located at two ends of the printed circuit board 2, respectively. Thereby facilitating the extension of the printed circuit board 2 into the inner cavity of the end cover 1, the first block 211 and the third block 213 are respectively positioned at two ends of the printed circuit board 2, and the connection stability of the printed circuit board 2 and the end cover 1 is also improved.

The technical scheme provided by the embodiment is described below in connection with a specific application scenario.

Application scenario

Referring to fig. 1 to 9, before installation, the end cap 1 is provided with positioning grooves, namely a first groove 111, a second groove 112 and a third groove 113; then, a printed circuit board 2 having a plate shape of a circular arc is prepared, and positioning blocks 21, which are a first block 211, a second block 212 and a third block 213, are further connected to the outer peripheral side of the printed circuit board.

In installation, the third block 213 is inserted into the third slot 113, and then the second block 212 is extended into the second transition slot 1121 of the second slot 112, and the first block 211 is extended into the first transition slot 1111 of the first slot 111; the printed circuit board 2 is then rotated such that the second block 212 protrudes from the second transition slot 1121 into the second fixing slot 1122 of the second slot 112, such that the first block 211 protrudes from the first transition slot 1111 into the first fixing slot 1112 of the first slot 111; after the printed circuit board 2 is moved in the circumferential direction of the cap 1 so that the first piece 211 is positioned at the small end of the first fixing groove 1112, the connection of the printed circuit board 2 with the cap 1 is completed.

Finally, the installed stator assembly and rotor assembly are taken out, the power line 22 at the printed circuit board 2 is aligned with the outlet of the stator assembly to be positioned, and the end cover 1 is pressed in, so that the motor assembly is completed.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. An electric machine, comprising:

the end cover is provided with an inner cavity, and the inner wall of the end cover is provided with a positioning groove;

the printed circuit board is positioned in the inner cavity of the end cover, a positioning block is arranged on the side wall, away from the center of the end cover, of the printed circuit board, and the positioning block is positioned in the positioning groove.

2. The motor of claim 1, wherein the positioning slot comprises a first slot, a second slot, and a third slot spaced apart from the inner wall of the end cap; the positioning block comprises a first block, a second block and a third block which are arranged on the side wall of the printed circuit board at intervals, and the first block, the second block and the third block respectively extend into the first groove, the second groove and the third groove in sequence.

3. The electric machine of claim 2, wherein the first slot includes a first transition slot and a first fixed slot in communication with each other, the first fixed slot extending in a circumferential direction of the end cap, the first transition slot extending in an axial direction of the end cap.

4. A machine as claimed in claim 3, wherein the width of the first fixing groove facing away from the first transition groove is tapered.

5. The motor of claim 4, wherein the second slot includes a second transition slot and a second fixed slot in communication with each other, the second fixed slot extending in a circumferential direction of the end cap, the second transition slot being scalloped, a length of the second fixed slot being greater than a length of the second transition slot.

6. The electric machine of claim 5, wherein the first transition slot is located at an end of the first stationary slot facing the second stationary slot, and a large end of the second transition slot facing the first transition slot.

7. The electric machine of claim 5, wherein the first transition slot is located at an end of the first stationary slot facing away from the second stationary slot, and wherein a large end of the second transition slot faces away from the first transition slot.

8. The electric machine of claim 2, wherein the length of the third slot is greater than the length of the third block.

9. The motor of claim 2, wherein the outer peripheral sides of the printed circuit board are arranged in an arc shape, and the outer peripheral sides of the first, second, and third blocks are arranged in an arc shape.

10. The motor of claim 2, wherein the printed circuit board is an arc board, and the first block and the third block are located at two ends of the printed circuit board, respectively.

Images