Recyclable insulating end plate

The multi-clamping structure solves the problem of a stable connection between the teeth and the toothed connecting ring, achieving stability and reliability of the insulating end plate, supporting the recycling of components, and reducing the risk of motor operation.

CN223978498UActive Publication Date: 2026-03-06TIANJIN MAISHENGTE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520149842.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-03-06
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

In the existing technology, the teeth and tooth connecting rings are only connected by positioning pins and positioning holes. When the motor is running, vibration can easily cause the positioning pins to fall off, resulting in poor stability and a risk of falling off.

Method used

It adopts a multi-clamping structure, including a slot, a clamping component, and a connecting component. Through the cooperation of a slide rod, a spring, a beveled top block, and a rotating ring, a stable connection between the teeth and the toothed connecting ring is achieved, enhancing the fixing effect.

Benefits of technology

It improves the stability of the tooth-to-tooth connecting ring, reduces the risk of detachment, ensures the stability of the insulating end plate, reduces the risk of motor short circuit, improves the reliability of motor operation, and supports the recycling of components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a recyclable insulating end plate, and relates to the technical field of motors, the recyclable insulating end plate comprises two tooth part connecting rings, the outer walls of the two tooth part connecting rings are both provided with clamping grooves, the inner walls of the two tooth part connecting rings are both provided with a group of clamping assemblies, and a group of connecting assemblies are arranged between the two tooth part connecting rings; the connecting assembly comprises a tooth part connecting rod, two tooth parts are fixedly mounted on the outer wall of the tooth part connecting rod, and a clamping block is fixedly mounted on one side of the outer wall of each tooth part; the clamping assembly comprises a sliding rod, one end of the sliding rod is fixedly provided with an insertion block, the other end of the sliding rod is fixedly provided with a bevel edge top block, and the outer wall of the sliding rod is sleeved with a spring. Through multiple clamping, the stability between the tooth part and the tooth part connecting ring is improved, the risk that the tooth part and the tooth part connecting ring fall off is reduced, and it is guaranteed that the insulating end plate stably protects the stator winding; motor short-circuit hidden troubles are reduced, and motor operation reliability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a recyclable insulating end plate. Background Technology

[0002] Concentrated winding motors are easy to mechanically wind, and mechanical winding is fast and consistent. With the development of variable frequency motors, they have developed rapidly. The stator ends of the motor need to use insulating end plates. The insulating end plates are located at the stator ends. First, they can reliably isolate the stator windings from the motor housing, and prevent current leakage to the housing and electric shock risk caused by accidental situations such as winding insulation damage, thus ensuring the safety of operators and surrounding equipment.

[0003] In the prior art, such as the recyclable insulating end plate described in patent number CN211908504U, there are multiple toothed structures and two toothed connecting rings. Each toothed structure includes two teeth, a toothed connecting rod, and a magnet. The toothed connecting rod is a strip-shaped structure, with two teeth respectively connected to the two ends on the same side of the toothed connecting rod. The distance between the two teeth is adapted to the height of the stator core. A magnet slot is provided on the tooth, and the magnet is placed in the magnet slot. The toothed connecting ring is a circular structure, with multiple slots at one end of the toothed connecting ring. The width of the slot is adapted to the width of the tooth, and a positioning post is provided in the slot. The tooth is provided with a positioning hole that can cooperate with the positioning post. The toothed structure is positioned by engaging the corresponding slots on the two toothed connecting rings at its two ends and being positioned by the positioning post. The toothed structure is located inside the toothed connecting ring.

[0004] While the aforementioned patent allows for easy disassembly and removal of the toothed connecting ring, some problems remain. The toothed parts and the toothed connecting ring are only connected by a positioning post and a positioning hole. When the motor is running, it will vibrate. Relying solely on the insertion connection, the positioning post is easily shaken out of the positioning hole, causing the toothed parts and the toothed connecting ring to fall off. Therefore, this utility model provides a recyclable insulating end plate. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a recyclable insulating end plate, which solves the problem that when the toothed parts and toothed connecting rings are connected only through positioning pins and positioning holes, the motor vibrates during operation, and the positioning pins are easily shaken out of the positioning holes due to the simple insertion connection, causing the toothed parts and toothed connecting rings to fall off.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a recyclable insulating end plate, comprising two toothed connecting rings, each of the two toothed connecting rings having multiple slots on its sidewalls, each slot having a set of engaging components on its inner wall, and multiple sets of connecting components between the two toothed connecting rings;

[0007] The connecting assembly includes a toothed connecting rod, the outer wall of which is fixedly fitted with two teeth for engaging in a slot; a snap-fit ​​block is fixedly fitted on one side of the outer wall of each tooth.

[0008] The snap-fit ​​assembly includes a slide rod arranged radially parallel to the toothed connecting ring, a plug is fixedly installed at one end of the slide rod, and a spring is sleeved on the outer wall of the slide rod;

[0009] One end of the spring is fixedly connected to the inner wall of the slot, and the other end abuts against the inclined top block; the insert block is used to cooperate with the snap-fit ​​block to fix the relative position of the toothed connecting ring and the connecting assembly.

[0010] Preferably, the inner wall of the slot is provided with a snap-fit ​​groove, and one side of the inner wall of the snap-fit ​​groove is provided with a circular groove. The snap-fit ​​groove matches the shape of the snap-fit ​​block and is used to insert the snap-fit ​​block into the snap-fit ​​groove. The slot matches the shape of the teeth and is used to insert the teeth into the slot.

[0011] Preferably, the slide rod slides through the inner wall of the circular groove, and a beveled top block is fixedly installed at the end of the slide rod away from the insertion block.

[0012] Preferably, a socket is provided on one side of the outer wall of the snap-fit ​​block, and the socket matches the shape of the snap-fit ​​block for inserting the snap-fit ​​block into the socket.

[0013] Preferably, the inner wall of the toothed connecting ring is provided with a threaded groove; a rotating ring is threadedly connected to the inner wall of the threaded groove, and the rotating ring is used to abut against the inclined top block, thereby driving the slide rod to move radially along the toothed connecting ring.

[0014] Preferably, the inclined side of the inclined top block is positioned facing the rotating ring.

[0015] Preferably, a magnet groove is provided on the other side of the outer wall of the tooth, and a magnet is fixedly installed on the inner wall of the magnet groove.

[0016] Beneficial effects

[0017] This invention provides a recyclable insulating end plate. Compared with the prior art, it has the following advantages:

[0018] 1. This recyclable insulating end plate, when the teeth need to be fixedly installed on the toothed connecting ring, first aligns the teeth with snap-fit ​​blocks on a set of toothed connecting rods with the snap-fit ​​grooves on the outer wall of the toothed connecting ring, inserts the teeth into the snap-fit ​​grooves, at which point the snap-fit ​​blocks will snap into the snap-fit ​​grooves on the inner wall of the grooves. Then, by rotating the rotating ring in the threaded groove, the rotating ring moves downward. Since the inclined side of a set of inclined top blocks is set directly below the rotating ring, the rotating ring presses down on the inclined top blocks. The inclined top blocks drive the sliding rod to overcome the spring force and slide into the groove, so that the insertion block is inserted into the insertion hole on the outer wall of the snap-fit ​​block. At this time, the spring is in a stretched state, thus completing the fixed connection between the teeth and the toothed connecting ring. Through multiple snap-fits, the stability between the teeth and the toothed connecting ring is improved, the risk of the teeth and the toothed connecting ring falling off is reduced, the insulating end plate is guaranteed to stably protect the stator windings, reduce the risk of motor short circuits, and improve the reliability of motor operation.

[0019] 2. The recyclable insulating end plate can be installed and disassembled between the two toothed connecting rings and a set of teeth. When a component is damaged, the damaged component can be replaced to restore the insulating end plate to a normal working state, thus enabling the device to be recycled without the need for complete replacement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the relevant structure of the toothed connecting ring of this utility model;

[0022] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a cross-sectional schematic diagram of the toothed connecting ring of this utility model;

[0024] Figure 5 For the present utility model Figure 4 Enlarged view at point B in the middle;

[0025] Figure 6 This is a schematic diagram of the connection component of this utility model;

[0026] Figure 7 For the present utility model Figure 6 Enlarged view of point C in the middle.

[0027] In the diagram: 1. Toothed connecting ring; 2. Slot; 3. Circular groove; 4. Snap-fit ​​assembly; 41. Slide rod; 42. Spring; 43. Insert block; 44. Inclined top block; 5. Connecting assembly; 51. Toothed connecting rod; 52. Tooth; 53. Snap-fit ​​block; 54. Magnet; 6. Threaded groove; 7. Rotating ring; 8. Snap-fit ​​groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides two technical solutions:

[0030] refer to Figures 1-7 This utility model provides a recyclable insulating end plate, including two toothed connecting rings 1. The side walls of the two toothed connecting rings 1 are provided with multiple slots 2. The inner walls of the slots 2 are provided with a set of snap-fit ​​components 4. Multiple sets of connecting components 5 are provided between the two toothed connecting rings 1.

[0031] The connecting assembly 5 includes a toothed connecting rod 51, and two teeth 52 are fixedly installed on the outer wall of the toothed connecting rod 51 for engaging in the slot 2; a snap-fit ​​block 53 is fixedly installed on one side of the outer wall of the tooth 52.

[0032] The snap-fit ​​assembly 4 includes a slide rod 41 arranged radially parallel to the toothed connecting ring 1, a plug 43 is fixedly installed at one end of the slide rod 41, and a spring 42 is sleeved on the outer wall of the slide rod 41;

[0033] One end of the spring 42 is fixedly connected to the inner wall of the slot 2, and the other end abuts against the inclined top block 44; the insert block 43 is used to cooperate with the snap-fit ​​block 53 to fix the relative position of the toothed connecting ring 1 and the connecting assembly 5.

[0034] Furthermore, the inner wall of the slot 2 is provided with a snap-fit ​​groove 8, and a circular groove 3 is provided on one side of the inner wall of the snap-fit ​​groove 8. The snap-fit ​​groove 8 matches the shape of the snap-fit ​​block 53 and is used to insert the snap-fit ​​block 53 into the snap-fit ​​groove 8. The slot 2 matches the shape of the tooth 52 and is used to insert the tooth 52 into the slot 2.

[0035] Furthermore, the slide rod 41 slides through the inner wall of the circular groove 3, and a slanted top block 44 is fixedly installed at the end of the slide rod 41 away from the insertion block 43.

[0036] Furthermore, an insertion hole is provided on one side of the outer wall of the snap-fit ​​block 53. The insertion hole matches the shape of the plug block 43 and is used to insert the plug block 43 into the insertion hole.

[0037] Furthermore, the inner wall of the toothed connecting ring 1 is provided with a threaded groove 6; a rotating ring 7 is threadedly connected to the inner wall of the threaded groove 6; the rotating ring 7 is used to abut against the inclined top block 44, driving the slide rod 41 to move radially along the toothed connecting ring 1.

[0038] Furthermore, the inclined side of the inclined top block 44 is arranged facing the rotating ring 7, and is used to drive the slide rod 41 to move radially along the toothed connecting ring 1 under the abutment action of the rotating ring 7.

[0039] Furthermore, a magnet groove is provided on the other side of the outer wall of the toothed part 52, and a magnet 54 is fixedly installed on the inner wall of the magnet groove to attract the iron core by magnetic force and fix the relative position of the iron core and the connecting assembly 5.

[0040] Specifically, the rotating ring 7 can rotate within the threaded groove 6. When the rotating ring 7 rotates, it will rise and fall. When the rotating ring 7 descends, it will contact the inclined side of the inclined top block 44, thereby squeezing the inclined top block 44. The inclined top block 44 will then drive the slide rod 41 and the insert block 43 to move towards the snap-fit ​​block 53, so that the insert block 43 is inserted into the insertion hole on the snap-fit ​​block 53. When the rotating ring 7 moves upward, it will move away from the inclined top block 44, so that the inclined top block 44 is not squeezed, making it convenient to disassemble the toothed part 52 from the toothed connecting ring 1.

[0041] The insert 43 can slide in the circular groove 3. When the spring 42 is not under force, it is in its natural state and will drive the insert 43 into the circular groove 3, so that the snap-fit ​​block 53 can be inserted into the snap-fit ​​groove 8.

[0042] When the spring 42 is subjected to force, the spring 42 is in a stretched state, which drives the insert block 43 to be inserted into the insertion hole of the snap block 53, fixing the relative position of the toothed connecting ring 1 and the connecting assembly 5.

[0043] Work process:

[0044] Place the connecting component 5, which has the same number of slots as the stator core, onto the stator core. The two teeth 52 of the connecting component 5 are located at the two ends of the core, and press the two toothed connecting rings 1 onto the teeth 52 of the connecting component 5.

[0045] At this time, the tooth 52 is inserted into the slot 2, and the snap block 53 will snap into the snap groove 8 on the inner wall of the slot 2. Then, by rotating the rotating ring 7 in the threaded groove 6, the rotating ring 7 moves downward. Since the inclined side of a set of inclined top blocks 44 is set directly below the rotating ring 7, the rotating ring 7 presses down on the inclined top blocks 44. The inclined top blocks 44 drive the slide rod 41 to overcome the elastic force of the spring 42 and slide into the circular groove 3, so that the insert block 43 is inserted into the insertion hole on the outer wall of the snap block 53.

[0046] At this time, the spring 42 is in a stretched state, which completes the fixed connection between the tooth 52 and the tooth connecting ring 1. Through multiple snap-fits, the stability between the tooth 52 and the tooth connecting ring 1 is improved, the risk of the tooth 52 and the tooth connecting ring 1 falling off is reduced, the insulation end plate is stably protected to protect the stator winding, the risk of motor short circuit is reduced, and the reliability of motor operation is improved.

[0047] The magnet 54 set on the tooth 52 is used to fix the tooth 52 to the iron core. After assembly, the wire can be wound. After the winding is completed, the connecting component 5 and the tooth connecting ring 1 can be removed. The two tooth connecting rings 1 and a set of teeth 52 can be installed and disassembled. When a component is damaged, the damaged component can be replaced to restore the insulating end plate to a normal working state, so that the device can be recycled without replacing the whole thing.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A recyclable insulation end plate comprising two toothed connecting rings (1), the side walls of both of the toothed connecting rings (1) are provided with a plurality of clamping grooves (2), characterized in that: The inner wall of the card slot (2) is provided with a set of clamping assemblies (4), and a plurality of connecting assemblies (5) are arranged between the two tooth connection rings (1); The connecting assembly (5) comprises a tooth connection rod (51), and the outer wall of the tooth connection rod (51) is fixedly installed with two teeth (52) for clamping in the card slot (2); the outer wall of the tooth (52) is fixedly installed with a clamping block (53) on one side; The clamping assembly (4) comprises a sliding rod (41) arranged radially parallel to the tooth connection ring (1), one end of the sliding rod (41) is fixedly installed with an insertion block (43), and the outer wall of the sliding rod (41) is sleeved with a spring (42); One end of the spring (42) is fixedly connected with the inner wall of the card slot (2), and the other end is abutted with the bevel top block (44); the insertion block (43) is used for cooperating with the clamping block (53) to fix the relative position of the tooth connection ring (1) and the connecting assembly (5).

2. A recyclable insulation end panel according to claim 1, wherein: The inner wall of the card slot (2) is provided with a clamping groove (8), one side of the inner wall of the clamping groove (8) is provided with a circular groove (3), the clamping groove (8) and the clamping block (53) are matched in shape, and the clamping block (53) is inserted into the clamping groove (8); the card slot (2) and the tooth (52) are matched in shape, and the tooth (52) is inserted into the card slot (2).

3. A recyclable insulating end panel according to claim 2, wherein: The sliding rod (41) slides through the inner wall of the circular groove (3), and one end of the sliding rod (41) away from the insertion block (43) is fixedly installed with a bevel top block (44).

4. A recyclable insulating end panel according to claim 3, wherein: The outer wall of the clamping block (53) is provided with an insertion hole on one side, the insertion hole and the insertion block (43) are matched in shape, and the insertion block (43) is inserted into the insertion hole.

5. A recyclable insulation end panel according to claim 3, wherein: The inner wall of the tooth connection ring (1) is provided with a threaded groove (6); the inner wall of the threaded groove (6) is threadedly connected with a rotating circular ring (7), and the rotating circular ring (7) is used for abutting against the bevel top block (44) to drive the sliding rod (41) to move radially along the tooth connection ring (1).

6. A recyclable insulating end panel according to claim 5, wherein: The bevel of the bevel top block (44) is arranged towards the rotating circular ring (7).

7. A recyclable insulation end panel according to claim 1, wherein: The outer wall of the tooth (52) is provided with a magnet slot on the other side, and the inner wall of the magnet slot is fixedly installed with a magnet (54).

Citation Information

Patent Citations

  • Recyclable insulating end plate

    CN211908504U