Fixing structure of external rotor motor lead

By adopting a snap-fit ​​connection structure between a fixing plate and a fixing slot and an inverted snap-fit ​​design in the external rotor motor, the problems of unstable lead wire fixing and high cost are solved, achieving the effects of simplifying the process, reducing costs and improving stability.

CN224218176UActive Publication Date: 2026-05-08NINGBO LADE DRIVING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO LADE DRIVING TECH CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In existing external rotor motors, the way the lead wires are fixed can easily lead to the risk of wire cutting, and the fixing cost and assembly time are relatively long.

Method used

The system employs a snap-fit ​​connection structure between a fixing plate and a fixing groove, combined with a cable tray and an inverted snap structure. It utilizes fixing plates made of PA6, PA66, PBT, ABS, PPS, PP, or BMC materials for fixation, simplifying the connection process and improving stability.

Benefits of technology

It simplifies the connection process, reduces costs, improves the fixing effect, prevents line cutting, and enhances connection stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fixing structure of an external rotor motor lead, which comprises a motor main body, the motor main body comprises a motor support, and at least one fixing structure is arranged on the motor support. The fixing structure comprises a fixing groove formed in the motor support and a fixing plate which can be fixedly or detachably connected with the fixing groove. The fixing plate is connected with the fixing groove in a buckled mode. A wiring groove for a power line to pass through is arranged between the motor support and the fixing plate, the structure design is reasonable, and the fixing structure is arranged to fix the power line; according to the motor support, the fixing plate and the fixing groove are arranged, and the fixing plate and the fixing groove are connected in a buckling connection mode, so that when the fixing plate is arranged on the motor support, the connection mode is simpler, and the working procedures and the cost during manufacturing are reduced; and the wiring groove is arranged and is used for wiring the power line.
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Description

Technical Field

[0001] This utility model relates to the field of motors, and in particular to a fixing structure for the leads of an external rotor motor. Background Technology

[0002] With the upgrading of energy efficiency in the electrical appliance industry, external rotor motors, with their advantages of compact structure and high material utilization, are widely used in garden tools, power tools, exhaust equipment, air conditioning units, air purification systems, and cooling equipment. Modern external rotor motors are connected to a power supply line or phase line (hereinafter referred to as the lead wire) for electrical connection. Because the motor needs to operate, the power supply line or phase line needs to be fixed to the motor to prevent the power supply line from being too messy or tangled on the motor and affecting operation. Therefore, the lead wire is usually fixed to the motor bracket, which has a cable routing groove, and then fixed with a pressure plate and screws. These pressure plates are usually made of metal, which poses a risk of cutting the power supply line if it needs to be bent. Furthermore, the use of pressure plates and screws increases manufacturing costs and assembly time. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a fixing structure for the leads of an external rotor motor, in light of the current state of the technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] A fixing structure for an external rotor motor lead includes a motor body, the motor body including a motor bracket, and at least one fixing structure provided on the motor bracket; the fixing structure includes a fixing groove provided on the motor bracket and a fixing plate that can be fixedly or detachably connected to the fixing groove; the fixing plate is fastened to the fixing groove; a wiring groove for the power line (motor lead) to pass through is provided between the motor bracket and the fixing plate.

[0006] The above-mentioned components achieve the following effects: a fixing structure is provided to fix the power cord; a fixing plate and a fixing groove are provided, and the fixing plate and the fixing groove are connected by a snap-fit ​​connection, which makes the connection method simpler when the fixing plate is set on the motor bracket, reducing the number of processes and costs in the manufacturing process; and a cable routing groove is provided to allow the power cord to be routed.

[0007] Preferably, the fixing plate includes a first fixing part and a second fixing part extending downward from both ends of the first fixing part; the bottom of the second fixing part is provided with an undercut structure; the undercut structure extends outward.

[0008] The effect achieved by the above-mentioned components is as follows: by setting a second fixing part and setting an inverted structure on the second fixing part, it is convenient to fix it with the motor bracket. By extending the inverted structure outward, the fastening effect is better and the connection is more stable.

[0009] Preferably, a pressure plate is provided at the lower end of the first fixing part.

[0010] The effect achieved by the above-mentioned components is that, by setting up the pressure plate, when the power cord is placed in the cable tray, the pressure plate can limit and clamp the power cord.

[0011] Preferably, the fixing groove is provided with a fixing seat at a position away from the wiring groove; the fixing groove is fixedly connected with the inverted structure.

[0012] The effect achieved by the above components is that by setting a fixing base to cooperate with the inverted structure, the fixing connection effect is better.

[0013] Preferably, the fixing plate is made of any one of the following materials: PA6, PA66, PBT, ABS, PPS, PP, and BMC.

[0014] The effect achieved by the above components is that, by setting them to any of the above materials, they prevent the fixing plate from cutting lines due to being too sharp or from having a poor fixing effect due to being too soft.

[0015] Compared with the prior art, the advantages of this utility model are as follows: a fixing structure is provided to fix the power cord; a fixing plate and a fixing groove are provided, and the fixing plate and the fixing groove are connected by a snap-fit ​​connection, which makes the connection method simpler when the fixing plate is set on the motor bracket, reducing the process and cost during manufacturing; and a cable routing groove is provided to allow the power cord to be routed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the extension of the present utility model. Figure 1 A schematic diagram of the structural cross-section of section line AA;

[0018] Figure 3 This is a schematic diagram of the fixing plate structure of this utility model.

[0019] Reference numerals in the attached drawings: 1. Motor body; 2. Motor bracket; 3. Fixing structure; 4. Fixing groove; 5. Fixing plate; 6. Wiring groove; 7. First fixing part; 8. Second fixing part; 9. Inverted structure; 10. Wire pressing plate; 11. Fixing base. Detailed Implementation

[0020] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0021] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0023] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] like Figures 1 to 3 As shown, this utility model provides a fixing structure for the lead wire of an external rotor motor, including a motor body 1, which includes a motor body 2. At least one fixing structure 3 is provided on the motor body 2. The fixing structure 3 includes a fixing groove 4 on the motor body 2 and a fixing plate 5 that is fixedly or detachably connected to the fixing groove 4. The fixing plate 5 is fastened to the fixing groove 4. A wiring groove 6 for the power wire to pass through is provided between the motor body 2 and the fixing plate 5. The fixing structure 3 is used to fix the power wire; the fastening connection between the fixing plate 5 and the fixing groove 4 simplifies the connection when the fixing plate 5 is placed on the motor body 2, reducing manufacturing steps and costs; and the wiring groove 6 allows the power wire to be routed.

[0026] The fixing plate 5 includes a first fixing part 7 and a second fixing part 8 extending downward from both ends of the first fixing part 7; a buckle structure 9 is provided at the bottom of the second fixing part 8; the buckle structure 9 extends outward. By providing the second fixing part 8 and the buckle structure 9 on the second fixing part 8, it is convenient to fix it to the motor body 2. By extending the buckle structure 9 outward, the fastening effect is better and the connection is more stable.

[0027] A wire clamping plate 10 extends downward from the lower end of the first fixing part 7. By providing the wire clamping plate 10, when the power cord is placed in the cable tray 6, the wire clamping plate 10 can limit and clamp the power cord.

[0028] A fixing seat 11 is provided outward from the fixing groove 4 at a position away from the wiring groove 6; the fixing groove 4 is fixedly connected with the inverted structure 9. By providing the fixing seat 11 to cooperate with the inverted structure 9, the fixing connection effect is better.

[0029] The fixing plate 5 is made of any one of the following materials: PA6, PA66, PBT, ABS, PPS, PP, and BMC. By using any of these materials, it prevents the fixing plate 5 from cutting lines due to being too sharp or from having a poor fixing effect due to being too soft.

[0030] In this embodiment:

[0031] When the user needs to fix the power cord, the power cord should first be placed in the cable tray 6, and then the fixing plate 5 should be placed on the motor body 2. The second fixing part 8 is inserted into the fixing slot 4, and then the inverted structure 9 and the fixing seat 11 are fastened together. At this time, the wire clamping plate 10 will abut against the power cord to complete the limiting fixation.

[0032] The power cord described in this utility model is a conventional and well-known structure for those skilled in the art, and therefore requires no further elaboration or accompanying drawings.

[0033] In the description of this specification, references are made to the terms "one embodiment", "some embodiments", "example", "specific example".

[0034] The descriptions using terms such as "example" or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.

[0036] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A fixing structure for the leads of an external rotor motor, comprising a motor body, the motor body including a motor bracket, characterized in that: The motor bracket is provided with at least one fixing structure; the fixing structure includes a fixing groove provided on the motor bracket and a fixing plate that can be fixed or detached from the fixing groove; the fixing plate is fastened to the fixing groove; a wiring groove for the power line to pass through is provided between the motor bracket and the fixing plate.

2. The fixing structure for the external rotor motor leads according to claim 1, characterized in that: The fixing plate includes a first fixing part and a second fixing part extending downward from both ends of the first fixing part; the bottom of the second fixing part is provided with an undercut structure; the undercut structure extends outward.

3. The fixing structure for the external rotor motor leads according to claim 2, characterized in that: A pressure plate is provided at the lower end of the first fixing part.

4. The fixing structure for the external rotor motor leads according to claim 3, characterized in that: The fixing groove is provided with a fixing seat at a position away from the cable tray; the fixing groove is fixedly connected with the inverted structure.

5. The fixing structure for the external rotor motor lead wire according to claim 3, characterized in that: The fixing plate is made of any one of the following materials: PA6, PA66, PBT, ABS, PPS, PP, and BMC.