Block motor support structure, motor and compressor thereof

Abstract

The invention provides a block motor support structure, a motor and a compressor thereof, the block motor support structure comprises a block stator, the block stator comprises a motor support enclosed by a plurality of block supports, a plurality of winding groups and a transition wire connected with the winding groups, the motor support is provided with a wiring wall for wiring of the transition wire, and the wiring wall is provided with a plurality of wiring holes. And a tensioning wheel for winding the transition wire is arranged in the wiring wall. According to the technical scheme, the manufacturing yield is improved, the stability and reliability of the motor are ensured, and the quality is outstanding.

Description

Technical Field

[0001] The invention relates to the field of compressor motors, and in particular to a block motor bracket structure, a motor and a compressor thereof. Background Art

[0002] Block motors have the advantages of high slot fill rate, high material utilization rate, and high efficiency, and have become one of the development directions of high-efficiency motors. At present, in order to improve the winding efficiency of the stator, some motor manufacturers adopt a single-block winding method, that is, when winding the block stator, the block stators are first wound separately, and then assembled into a circle. After the assembly is completed, separate wires are used to connect the transition lines to each block stator. At this time, wiring terminals need to be installed on each block stator. However, this method will make the transition line connection cumbersome and costly when the block motor is divided into too many blocks.

[0003] Another part of motor manufacturers adopts the interlaced winding method, that is, when winding the segmented stator, it is necessary to first unfold the segmented stator so that the modules of the segmented stator are distributed along a straight line, and then use winding equipment to wind each module in turn. After completing the winding operation, the segmented stator needs to be closed, that is, the two ends of the segmented stator in the unfolded state are connected together to restore the segmented stator to a circular ring structure.

[0004] However, this method will cause various problems in the assembled motor due to the change in the distance between the blocks during the winding and assembly process. This requires the transition line to be adjusted in time to ensure reliable fixation and avoid quality problems such as safety regulations. Summary of the invention

[0005] In view of the problems in the prior art, the object of the present invention is to provide a block motor support structure, a motor and a compressor thereof that can ensure the stability and reliability of the motor.

[0006] According to one aspect of the present invention, a segmented motor support structure is provided, wherein the segmented motor comprises a segmented stator, wherein the segmented stator comprises a motor support formed by a plurality of segmented supports, a plurality of winding groups and a transition line connecting the winding groups, wherein the motor support comprises winding teeth and a wiring wall, wherein the winding group is wound on the winding teeth and connected to another winding group after passing through a wire threading groove on the wiring wall, wherein the wiring wall is further provided with a tensioning wheel for winding the transition line, wherein when the transition line is loose, the transition line is wound on the tensioning wheel, and when the transition line is tight, the transition line wound on the tensioning wheel is loosened.

[0007] Preferably, the tensioning wheel is rotatably arranged on the motor bracket.

[0008] Preferably, the tension wheel is provided with a notch for the transition line to pass through.

[0009] Preferably, the tensioning wheel is a ratchet mechanism, which is unidirectionally rotatable and is arranged on the motor bracket.

[0010] Preferably, the tensioning wheel is an incomplete ratchet mechanism, which is arranged on the motor bracket and can rotate unidirectionally at a certain angle and freely at a certain angle.

[0011] Preferably, the tensioning wheel is convexly arranged on a side of the wiring wall away from the winding teeth.

[0012] Preferably: a hook is provided on the inner side of the block bracket.

[0013] Preferably, a plurality of wire-holding ribs are provided on the wiring wall, and wire-holding grooves for the transition wire to pass through are reserved between adjacent wire-holding ribs.

[0014] Preferably, the threading groove is in a stepped or comb-shaped form.

[0015] According to another aspect of the present invention, there is provided a motor comprising a plurality of block stators, the block motor support structure and a multi-phase winding group, wherein the plurality of block stators are divided into a plurality of partitions along the circumferential direction, and the block stators with the same arrangement order in different partitions are the same-phase block stators, and the total number of the tension wheels between two partitions is the same as or a multiple of the number of phases of the winding group.

[0016] According to another aspect of the present invention, a compressor is provided, comprising the above-mentioned block motor bracket structure.

[0017] A block motor bracket structure and a compressor thereof of the present invention enable the block motor to shrink the transition line during the winding and circle forming process, and keep the transition line in its correct position, thereby improving the manufacturing yield rate and ensuring that the motor is stable, reliable and of outstanding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objectives and advantages of the present invention will become more apparent from a reading of the detailed description of non-limiting embodiments made with reference to the following accompanying drawings.

[0019] Figure 1 is a structural schematic diagram of a block motor bracket structure of an embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of a block bracket tensioning wheel according to an embodiment of the present invention;

[0021] Figure 3 is a structural schematic diagram of a tension wheel notch of a block bracket according to an embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of a block bracket hook according to an embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of the inner side of a block bracket according to an embodiment of the present invention;

[0024] Figure 6 is a schematic structural diagram of a block bracket threading trough according to an embodiment of the present invention;

[0025] Figure 7 It is a structural schematic diagram of another threading groove of the block bracket according to an embodiment of the present invention;

[0026] Figure 8 It is a schematic structural diagram of another wire threading groove of the block bracket according to an embodiment of the present invention.

[0027] Reference numerals

[0028] 1 Motor bracket

[0029] 2 Winding Group

[0030] 3 Transition line

[0031] 4 Wiring wall

[0032] 5 Tensioner

[0033] 6 Notches

[0034] 7. Wire clamp

[0035] 8 Wire duct DETAILED DESCRIPTION

[0036] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0037] like Figure 1 As shown in , in an embodiment of the present invention, a block motor bracket structure and a compressor comprising the same are provided.

[0038] The compressor comprises an electric motor, preferably a block electric motor.

[0039] The block motor comprises a block stator, and the block stator comprises a motor bracket 1 surrounded by a plurality of block brackets, a plurality of winding groups 2 and transition wires 3 connecting the winding groups 2.

[0040] The motor bracket 1 includes winding teeth and a wiring wall 4. The winding group is wound on the winding teeth, passes through the threading groove on the wiring wall 4 and then connects to another winding group. The wiring wall 4 can be used for the transition line 3 to be routed. The figure shows a part of the wiring wall 4. The transition line 3 comes out from the winding group 2 on the inner side of the motor bracket 1, and roughly passes through the motor bracket 1 to the outside of the motor bracket 1, and connects the winding group 2 in sequence along the outside of the motor bracket 1.

[0041] Combined with Figure 2 As shown in , a tensioning wheel 5 for winding the transition line 3 is provided in the wiring wall 4. When the transition line 3 is loose, the transition line 3 is wound on the tensioning wheel 5, and when the transition line 3 is tight, the transition line 3 wound on the tensioning wheel 5 is loosened.

[0042] The embodiment of the present invention provides a block motor bracket structure and a compressor thereof, so that the transition line of the block motor can be shrunk during the winding and rounding process to keep the transition line in its correct position, thereby improving the manufacturing yield rate and ensuring that the motor is stable, reliable and of outstanding quality.

[0043] An embodiment of the present invention also provides a motor, wherein the plurality of block stators are divided into a plurality of partitions along the circumferential direction, the block stators with the same arrangement order in different partitions are the same-phase block stators, and the total number of the tensioning wheels 5 between two partitions is the same as or a multiple of the number of phases of the winding group 2.

[0044] Preferably, the tension wheels 5 are distributed in layers in the axial direction to avoid the crossing of transition lines of different phases. The winding groups 2 of different phases are wound on the tension wheels 5 of different layers.

[0045] Furthermore, the number of tension wheels 5 on each block bracket is the same as the number of motor phases. Optionally, the number of motor phases described in this embodiment is three-phase, and three tension wheels 5 are provided. Figure 1 As shown, the winding group 2 described in this embodiment has three phases, namely, phase U, phase V and phase W. Three tension wheels 5 are arranged on each block bracket, and a total of nine tension wheels 5 are arranged between two partitions. In actual use, each phase winding group 2 only uses one tension wheel 5 on one block bracket, so that the structure of each block bracket designed in this way is the same, which is easy to process, manufacture and install.

[0046] like Figure 2 As shown in the embodiment of the present invention, the tension wheel 5 is preferably cylindrical in shape. The tension wheel 5 is preferably arranged on the motor bracket 1 with its axis perpendicular to the motor bracket 1 .

[0047] like Figure 3As shown in , in an embodiment of the present invention, the tensioning wheel 5 is preferably rotatable along its own axis and is arranged on the motor bracket 1. The tensioning wheel 5 is provided with a notch 6 for the transition line 3 to pass through, and there may be one or more notches 6. In this way, the transition line 3 can be conveniently wound around the tensioning wheel 5 by rotating the tensioning wheel 5. During the winding process, the transition line 3 will pass through the notch 6 of the tensioning wheel 5, and during the winding and circle forming process of the block motor, the transition line 3 will be loose. At this time, the transition line 3 can be tensioned by rotating the bracket attachment.

[0048] In addition, if Figure 4 As shown in , in the embodiment of the present invention, the tension wheel 5 is preferably a ratchet mechanism, which can be unidirectionally rotated on the motor bracket 1. The ratchet mechanism is that the surface of the motor bracket 1 and the tension wheel 5 that are in contact and rotate and slide are distributed with certain inclined teeth. When rotating along the teeth, the teeth of the two will produce a little elastic deformation and slide relative to each other, and this will not slide relative to each other in the reverse direction. The unidirectional rotation of the ratchet mechanism can maintain the original state after the external force is removed, thereby keeping the transition line 3 tensioned.

[0049] Another example Figure 5 As shown in the figure, in the embodiment of the present invention, the tensioning wheel 5 is preferably an incomplete ratchet mechanism, which can be arranged on the motor bracket 1 to rotate unidirectionally at a certain angle and freely rotate at a certain angle. The incomplete ratchet structure, that is, the entire circumferential section where the motor bracket 1 and the tensioning wheel 5 contact each other has only part of the teeth, can achieve intermittent contact, can only rotate unidirectionally when in contact, and can rotate bidirectionally when not in contact, which can achieve the tensioning and relaxation of the transition line. Free forward and reverse rotation is achieved at certain angles, and single-phase rotation is achieved at certain angles.

[0050] like Figure 4 As shown in, in an embodiment of the present invention, the tensioning wheel 5 is preferably protruded on the side of the routing wall 4 away from the winding teeth, that is, the outside of the annular block bracket. Since the transition line is mainly routed on the outside, the outside is more convenient for operation.

[0051] In the embodiment of the present invention, preferably, a wire groove 8 for standardizing the routing of the transition wire 3 is provided in the wiring wall 4 of the motor bracket 1. Figure 6 As shown in , the threading groove 8 is preferably an open groove with an opening toward the radial tangent of the motor bracket 1. Figure 7 As shown in , the threading groove 8 is preferably a stepped groove formed on the motor bracket 1. Figure 8 As shown in FIG. 1 , the threading groove 8 is preferably an open groove with its opening facing the axial direction of the motor bracket 1 and is in a comb-tooth shape.

[0052] It is preferred that the number of threading grooves 8 is equal to the number of transition lines 3. The multi-layer stepped hanging structure with grooves of different depths is used to layer the transition lines 3 of different phases, thereby avoiding mutual crossing and allowing different phase lines to be routed separately to achieve layering.

[0053] In addition, if Figure 6 As shown in , in an embodiment of the present invention, preferably, a wire-gripping rib 7 is provided in the wiring wall of the motor bracket 1, and a wire-gripping groove is reserved between adjacent wire-gripping ribs for the transition wire to pass through.

[0054] Further, for a three-phase motor, four wire-holding ribs 7 are adaptively provided to obtain three wire-holding grooves. Preferably, the wire-holding ribs 7 are distributed in layers along the axial direction to avoid the crossing of transition lines of different phases.

[0055] The wire clamping rib 7 can be arranged on the outside of the motor bracket 1. It can also be arranged at the opening of the threading groove 8, and preferably an L-shaped wire clamping rib 7 is arranged at the entrance and exit of the transition line 3 on the motor bracket 1 to make the transition line regular.

[0056] In summary, the technical solution of the embodiment of the present invention enables the block motor to shrink the transition line 3 during the winding and circle forming process, and keep the transition line 3 in its correct position.

[0057] With the help of the bracket, the routing of the transition line 3 can be the same as that of a traditional full-circle motor, and is suitable for a block motor.

[0058] At the same time, this type of bracket is used for block motors. Compared with the method of winding a single block and then connecting the transition wires through joints, it has the advantages of fewer transition wire joints, simplicity and reliability, no need for too many plug-in terminals, low cost, simple manufacturing, and high production efficiency.

[0059] Compared with the interlaced winding and then closing the circle, the advantages of the method are mainly: ① The winding machine has simple routing, high production efficiency, and low production cost. At the same time, it can reduce the amount of copper used and reduce costs. ② There is no need to interlace back and forth, and the production yield will be improved; ③ Because the transition line does not need to be interlaced back and forth, the bracket can be designed to be simple, reducing the complexity of the bracket mold and reducing the manufacturing difficulty. ④ The telescopic function of the transition line is designed to adjust the tension of the transition line in time, and the accuracy of the transition line length and its coordination with the winding bracket are not required, thereby improving the manufacturing yield. ⑤ In the process of closing the circle, the tightness of the transition line can be adjusted in time to avoid the transition line deviating from the wire slot, ensuring that the motor is stable and reliable, and the quality is outstanding.

[0060] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A block motor support structure, suitable for block motors, characterized in that: The segmented motor includes a segmented stator, which includes a motor bracket surrounded by a plurality of segmented brackets, a plurality of winding groups and a transition wire connecting the winding groups. The motor bracket includes winding teeth and a wiring wall. The winding group is wound on the winding teeth and connected to another winding group after passing through the threading groove on the wiring wall. The wiring wall is also provided with a tensioning wheel for winding the transition wire. When the transition wire is loose, the transition wire is wound on the tensioning wheel. When the transition wire is tight, the transition wire wound on the tensioning wheel is loosened.

2. The block motor support structure according to claim 1 is characterized in that: The tensioning wheel is rotatably arranged on the motor bracket.

3. The block motor support structure according to claim 1 is characterized in that: The tensioning wheel is provided with a notch for the transition line to pass through.

4. The block motor support structure according to claim 1 is characterized in that: The tensioning wheel is a ratchet mechanism and is unidirectionally rotatable and arranged on the motor bracket.

5. The block motor support structure according to claim 1 is characterized in that: The tensioning wheel is an incomplete ratchet mechanism, which can be arranged on the motor bracket so as to rotate unidirectionally at a certain angle and rotate freely at a certain angle.

6. The block motor support structure according to claim 1 is characterized in that: The tensioning wheel is convexly arranged on a side of the wiring wall away from the winding teeth.

7. The block motor support structure according to claim 1 is characterized in that: A plurality of wire-holding ribs are also arranged on the wiring wall, and wire-holding grooves for the transition wire to pass through are reserved between adjacent wire-holding ribs.

8. The block motor support structure according to claim 1 is characterized in that: The threading groove is in a stepped or comb-tooth shape.

9. A motor, characterized in that: It comprises a plurality of block stators, a block motor support structure as described in any one of claims 1 to 8 and a multi-phase winding group, wherein the plurality of block stators are divided into a plurality of partitions along the circumferential direction, the block stators with the same arrangement order in different partitions are the same-phase block stators, and the total number of the tension wheels between two partitions is the same as or a multiple of the number of phases of the winding group.

10. A compressor, characterized in that: It comprises a block motor support structure according to any one of claims 1 to 8.

Images