Isolation sleeve, stator and motor
By providing a through opening on the side wall of the isolation casing, the problem of low efficiency caused by the need to suspend the installation of the isolation casing during the winding process is solved, and the function of being able to install the isolation casing at any time is realized, which improves the working efficiency.
Patent Information
- Application Number
- CN202421808962.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In motor stator insulation systems, the prior art requires the suspension of the winding machine to install an isolation sleeve when winding, resulting in low working efficiency.
An isolation sleeve is designed, with an opening on the side wall of which runs through the first end to the second end, allowing it to be placed on the bridge line from the opening at any time, avoiding the need to suspend the installation of the sleeve during the winding process.
Through this design, working efficiency can be effectively improved without affecting the winding efficiency and simplified the installation process of the isolation casing.
Smart Images
Figure CN222884425U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, and in particular to an isolation sleeve, a stator and a motor. Background Art
[0002] In the motor stator insulation system, the voltage difference between different phases is high, and it is usually necessary to isolate the coils between different phases to avoid direct contact between the coils of different phases. For the dispersed distributed winding coil, due to the presence of bridge wires, in order to ensure the complete isolation of the coils between different phases, the bridge wires need to be isolated.
[0003] In the related art, a sleeve is installed on the bridge wire to achieve isolation between the bridge wire and the coil. However, the sleeve needs to be inserted into the coil in advance when winding. When the winding reaches the position where the sleeve needs to be added, the winding machine needs to be paused, and then the sleeve is pushed in, and then the winding machine is restarted for subsequent coil winding. The process of adding the sleeve greatly reduces the winding efficiency, resulting in low work efficiency. Utility Model Content
[0004] The main purpose of the utility model is to provide an isolation sleeve, a stator and a motor, aiming to provide an isolation sleeve that can improve work efficiency.
[0005] To achieve the above-mentioned purpose, the utility model provides an isolation sleeve for sleeve-mounting a bridge line or a coil. The side wall of the isolation sleeve is provided with an opening, and the opening runs through the first end to the second end of the isolation sleeve.
[0006] In an embodiment of the present invention, the opening extends along the axial direction of the isolation sleeve or extends in a circumferential spiral direction.
[0007] In an embodiment of the present invention, the edge portions of both sides of the opening of the isolation sleeve overlap or abut against each other.
[0008] In an embodiment of the present invention, the isolation sleeve is a self-rolling sleeve.
[0009] In an embodiment of the present invention, the isolation sleeve is an elastic sleeve.
[0010] In an embodiment of the present invention, the isolation sleeve is a polyester fiber piece.
[0011] To achieve the above object, the present application also provides a stator, comprising:
[0012] A stator core, wherein the stator core is provided with stator slots;
[0013] A coil, wherein the coil is partially wound in the stator slot, and the end of the coil extends to the end of the stator core. A plurality of coils are provided, and the ends of two adjacent coils of the same phase are connected by a bridge wire;
[0014] The above-mentioned isolation sleeve is sleeved on the bridge line from the opening.
[0015] In an embodiment of the present invention, the end of the coil is sleeved with the isolation sleeve.
[0016] To achieve the above-mentioned purpose, the present application also provides a motor, comprising a base, a rotor and the above-mentioned stator, wherein the stator is fixed in the base and the rotor is arranged in the stator.
[0017] The technical solution of the utility model is that an opening is provided on the side wall of the isolation sleeve, and the opening runs through the first end to the second end of the isolation sleeve, so the isolation sleeve can be sleeved on the bridge wire from the opening at any time, and the isolation sleeve can be sleeved on the bridge wire during or after the winding is completed, and it is no longer limited to sleeve the sleeve on the bridge wire during the winding process. When the isolation sleeve is added, the winding efficiency will not be affected, thereby effectively improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0019] Figure 1 A schematic structural diagram of a stator according to an embodiment of the present invention;
[0020] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.
[0021] Description of Figure Numbers:
[0022] Label name Label name 100 stator 20 Stator core 10 Isolation sleeve 30 Coil 11 Opening 40 Bridge Line
[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0027] In the motor stator insulation system, the voltage difference between different phases is high, and it is usually necessary to isolate the coils between different phases to avoid direct contact between the coils of different phases. For the dispersed distributed winding coil, due to the presence of bridge wires, in order to ensure the complete isolation of the coils between different phases, the bridge wires need to be isolated.
[0028] In the related art, a sleeve is installed on the bridge wire to achieve isolation between the bridge wire and the coil. However, the sleeve needs to be inserted into the coil in advance when winding. When the winding reaches the position where the sleeve needs to be added, the winding machine needs to be paused, and then the sleeve is pushed in, and then the winding machine is restarted for subsequent coil winding. The process of adding the sleeve greatly reduces the winding efficiency, resulting in low work efficiency.
[0029] Based on the above problems, the utility model proposes an isolation sleeve, aiming to provide an isolation sleeve that can improve work efficiency.
[0030] See also Figure 1 and Figure 2In one embodiment of the utility model, the isolation sleeve 10 is used to sleeve the bridge line 40 or the coil 30, and the side wall of the isolation sleeve 10 is provided with an opening 11, and the opening 11 runs through the first end to the second end of the isolation sleeve 10.
[0031] The technical solution of the utility model is that an opening 11 is provided on the side wall of the isolation sleeve 10, and the opening 11 runs through the first end to the second end of the isolation sleeve 10, so the isolation sleeve 10 can be sleeved on the bridge line 40 from the opening 11 at any time, and the isolation sleeve 10 can be sleeved on the bridge line 40 regardless of whether it is during the winding process or after the winding is completed. It is no longer limited to sleeve the sleeve on the bridge line 40 during the winding process, and the winding efficiency will not be affected when the isolation sleeve 10 is added, thereby effectively improving the work efficiency.
[0032] In addition, the following two traditional isolation methods are used:
[0033] First, the bridge wire 40 is isolated from other coils 30 by insulating paper. However, the insulating paper between coils 30 of different phases is prone to not being inserted properly, resulting in incomplete isolation; in addition, the ends of the coils 30 need to be tied after the paper is inserted, and the insulating paper is prone to move during the binding process, causing the bridge wire 40 and coil 30 that have been isolated to contact again, resulting in isolation failure; and after the wire is tied, the ends of the coils 30 need to be shaped, and during the shaping process, the insulating paper is also prone to move, causing isolation failure.
[0034] Second, an adhesive tape is wound around the bridge wire 40 to isolate the bridge wire 40 from other phase coils 30 . This method has low operating efficiency and is not suitable for mass production.
[0035] The isolation sleeve 10 proposed in the present application can not only realize that the isolation sleeve 10 can be sleeved on the bridge wire 40 from the opening 11 at any time; but also in the subsequent process of binding and shaping the end of the coil 30, it is not easy to be displaced and cause isolation failure; and during the installation process, the isolation sleeve 10 can be directly sleeved on the bridge wire 40 from the opening 11, which has high operation efficiency and is more suitable for mass production.
[0036] In actual application, the opening 11 on the isolation sleeve 10 can extend along the axial direction of the isolation sleeve 10, or can extend along the circumferential spiral of the isolation sleeve 10, or can extend in various irregular ways, as long as the opening 11 can pass through the first end to the second end of the isolation sleeve 10.
[0037] In actual application, the two side edges of the opening 11 of the isolation sleeve 10 can be spaced apart, abutted, or partially overlapped, as long as the isolation of the bridge wire 40 from other coils 30 can be achieved by the isolation sleeve.
[0038] It should be noted that when the isolation sleeve 10 is provided with two side edges of the opening 11 spaced apart, the space between the two side edges cannot be too large to avoid isolation failure of the isolation sleeve 10 .
[0039] In practical applications, the material of the isolation sleeve 10 is not limited, as long as it can provide insulation and isolation effects.
[0040] See also Figure 1 and Figure 2 In one embodiment of the present invention, the opening 11 extends along the axial direction of the isolation sleeve 10 or extends in a circumferential spiral direction.
[0041] With such arrangement, the opening 11 extending axially or circumferentially spirally along the isolation sleeve 10 makes it easier to install the isolation sleeve 10, thereby improving the installation efficiency.
[0042] See also Figure 1 and Figure 2 In one embodiment of the present invention, the isolating sleeve 10 is provided with two side edges of the opening 11 that overlap or abut against each other. Figure 2 The isolation sleeve 10 is provided with openings 11 whose side edges partially overlap or abut against each other in the first direction.
[0043] In this way, after the isolation sleeve 10 is sleeved on the end of the bridge wire 40 or the coil 30, the isolation sleeve 10 can fully isolate the sleeved bridge wire 40 or the coil 30 by making the edge portions of both sides of the opening 11 overlap or abut each other, so as to avoid that the sleeved bridge wire 40 or the coil 30 is partially exposed to the outside and affects the isolation effect.
[0044] See also Figure 1 and Figure 2 In one embodiment of the present invention, the isolation sleeve 10 is a self-rolling sleeve.
[0045] With such arrangement, before installation, first open the opening 11 to make the width of the opening 11 larger than the width of the bridge wire 40 or the coil 30, then put the isolation sleeve 10 on the bridge wire 40 or the coil 30 from the opening 11, and finally loosen the isolation sleeve 10. The isolation sleeve 10 can self-roll to tightly wrap the bridge wire 40 or the coil 30, so that the isolation sleeve 10 will not be displaced during the subsequent wire binding and shaping process, so that the isolation effect is more stable.
[0046] It should be noted that the self-rolling sleeve means that when the isolation sleeve 10 is sleeved on the bridge wire 40 or the coil 30 , the isolation sleeve 10 can be automatically tightened to wrap the bridge wire 40 or the coil 30 .
[0047] See also Figure 1 and Figure 2 In one embodiment of the present invention, the isolation sleeve 10 is an elastic sleeve.
[0048] By configuring the isolation sleeve 10 as an elastic structural member, it is easier to pry the isolation sleeve 10 apart from the opening 11 under the action of elastic force. At the same time, when the isolation sleeve 10 is loosened, it can rebound quickly under the action of elastic force to quickly wrap the bridge wire 40 or the coil 30.
[0049] See also Figure 1 and Figure 2 In one embodiment of the present invention, the isolation sleeve 10 is a polyester fiber piece.
[0050] In this way, since polyester fiber has good wrinkle resistance and shape retention, and has high strength and elastic recovery ability, by using polyester fiber as the material for preparing the isolation sleeve 10, the isolation sleeve 10 can have high strength and elastic recovery ability to ensure the isolation stability of the isolation sleeve 10 to the bridge wire 40 or the coil 30.
[0051] As some exemplary embodiments, the isolation sleeve 10 may be formed by weaving a plurality of monofilament fibers and a plurality of multifilament fibers.
[0052] See 1 and Figure 2 The utility model also proposes a stator 100, which includes a stator core 20, a coil 30 and an isolation sleeve 10; the specific structure of the isolation sleeve 10 refers to the above embodiment. Since the stator 100 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the stator core 20 is provided with a stator 100 slot; the coil 30 is partially wound in the stator 100 slot, and the end of the coil 30 extends to the end of the stator core 20. There are multiple coils 30, and the ends of two adjacent coils 30 of the same phase are connected by a bridge wire 40; the isolation sleeve 10 is sleeved on the bridge wire 40 from the opening 11.
[0053] It can be understood that in order to ensure complete isolation of coils 30 between different phases, the isolating sleeve 10 is opened from the opening 11 so that the width of the opening 11 is greater than the width of the bridge wire 40, and then the isolating sleeve 10 is sleeved on the bridge wire 40 from the position of the opening 11. The isolating sleeve 10 is loosened and the isolating sleeve 10 will wrap the bridge wire 40 tightly to isolate the bridge wire 40. Therefore, the setting of the opening 11 allows the isolating sleeve 10 to be sleeved on the bridge wire 40 from the opening 11 at any time. The isolating sleeve 10 can be sleeved on the bridge wire 40 during or after the winding process. It is no longer limited to sleeve the sleeve on the bridge wire 40 during the winding process. When the isolating sleeve 10 is added, the winding efficiency will not be affected, thereby effectively improving the work efficiency.
[0054] In actual application, in addition to the bridge wire 40 , the isolation between the ends of the coil 30 can be achieved by using insulating paper or an isolation sleeve.
[0055] See 1 and Figure 2 In one embodiment of the present invention, an isolation sleeve 10 is sleeved on the end of the coil 30 .
[0056] In this way, isolation is achieved by using an isolation sleeve 10 at the end of the coil 30. In this way, the isolation sleeve 10 will not be displaced during the subsequent binding and shaping of the end of the coil 30, so that the isolation effect of the isolation sleeve 10 on the coil 30 is more stable.
[0057] The utility model also provides a motor, which includes a base, a rotor and a stator 100; the specific structure of the stator 100 refers to the above embodiment, and since the motor adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the stator is fixed in the base, and the rotor is arranged in the stator.
[0058] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An isolation sleeve for sleeve-mounting a bridge wire or a coil, characterized in that: The side wall of the isolation sleeve is provided with an opening, and the opening runs through the first end to the second end of the isolation sleeve.
2. The isolation sleeve according to claim 1, characterized in that: The opening extends along the axial direction of the isolation sleeve or extends in a circumferential spiral direction.
3. The isolation sleeve according to claim 1, characterized in that: The isolation sleeve is provided with two side edge portions of the opening overlapping or abutting each other.
4. The isolation sleeve according to any one of claims 1 to 3, characterized in that: The isolation sleeve is a self-rolling sleeve.
5. The isolation sleeve according to claim 4, characterized in that: The isolation sleeve is an elastic sleeve.
6. The isolation sleeve according to claim 5, characterized in that: The isolation sleeve is a polyester fiber piece.
7. A stator, characterized in that: include: A stator core, wherein the stator core is provided with stator slots; A coil, wherein the coil is partially wound in the stator slot, and the end of the coil extends to the end of the stator core. A plurality of coils are provided, and the ends of two adjacent coils of the same phase are connected by a bridge wire; The isolation sleeve according to any one of claims 1 to 6, wherein the isolation sleeve is sleeved on the bridge line from the opening.
8. The stator according to claim 7, characterized in that The end of the coil is sleeved with the isolation sleeve.
9. A motor, characterized in that: It comprises a base, a rotor and the stator as claimed in claim 8, wherein the stator is fixed in the base and the rotor is arranged in the stator.