Coil pipe injection molding stator assembly

Abstract

The utility model provides a coil pipe injection molding stator assembly, comprising an iron core, the iron core is arranged in a motor, the iron core is composed of a first fan-shaped injection molding body, a second fan-shaped injection molding body and a third fan-shaped injection molding body, the upper end face of the iron core is provided with a thimble, and the radial direction and the axial direction of the iron core are provided with a positioning column and a positioning groove. Conduction plate grooves are formed among the upper end surface, the lower end surface and the outer wall of the iron core; the support is arranged at the rear end of the motor and used for supporting the motor; a conduction plate is arranged in the iron core conduction plate groove and used for conducting two BB covers (plastic package motor end covers). According to the utility model, the iron core is provided with the first fan-shaped injection molding body structure, the second fan-shaped injection molding body structure and the third fan-shaped injection molding body structure, materials are intensively distributed at key parts according to specific stress conditions and functional requirements of the motor, unnecessary material accumulation is avoided, materials are saved, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coil stator technology, specifically a coil injection molded stator assembly. Background Technology

[0002] A coil air conditioner is a terminal device used in air conditioning systems, primarily for regulating indoor air temperature and humidity. It uses a fan to force air through coils (which contain flowing chilled or hot water) to cool or heat the air, thus maintaining indoor comfort. A coil air conditioner typically consists of a fan, coils, a motor, and a control system. Current coil air conditioners face several problems in practical applications: firstly, when the installation location is long, the required motor body is larger, increasing cost and space occupation; secondly, conventional coil air conditioners use electrical tape to connect two BB covers, resulting in expensive equipment and low production efficiency; and thirdly, some motor models lack a stator core positioning structure, causing stator core misalignment during plastic injection molding, affecting production assembly, generating noise, and leading to abnormal performance. Utility Model Content

[0003] The purpose of this invention is to provide a coil injection molded stator assembly to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A coil injection molded stator assembly, comprising:

[0006] The iron core is located inside the motor. The iron core is composed of a first sector-shaped injection molded body, a second sector-shaped injection molded body, and a third sector-shaped injection molded body. The upper end face of the iron core is provided with a ejector pin. The radial and axial radial of the iron core are provided with positioning pins and positioning grooves. A guide plate groove is opened between the upper end face, the lower end face, and the outer wall of the iron core.

[0007] A support, which is located at the rear end of the motor, is used to support the motor;

[0008] A guide plate is installed in the groove of the iron core guide plate to connect the two BB covers (plastic-sealed motor end covers).

[0009] Preferably, the front end of the support is fixedly connected to a protruding connecting block.

[0010] Preferably, the connecting block passes through the connecting grooves opened at the top of the upper and lower clamps to the other side to form a snap-fit.

[0011] Preferably, the bottom of the upper clamp and the lower clamp are respectively provided with a first connecting part and a second connecting part, and the first connecting part and the second connecting part cooperate with each other to wrap the first rubber ring and the second rubber ring.

[0012] Preferably, the first connecting part and the second connecting part are fixed by bolts and nuts, the bottom of the bolts is connected to the connecting plate, and the connecting plate is connected to the bolts on both sides.

[0013] Preferably, the first rubber ring and the second rubber ring are respectively disposed on both sides of the motor.

[0014] Preferably, a lead wire clamp is fixedly connected to the outside of the motor.

[0015] Preferably, the iron core is provided with a through hole, and the iron cores are connected by a coupling that passes through the through hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the iron core is configured with first, second, and third sector-shaped injection molded body structures. Based on the specific stress conditions and functional requirements of the motor, the material is concentrated and distributed in key parts, avoiding unnecessary material accumulation, thereby saving materials and reducing costs.

[0018] This invention features a conductive plate groove on the iron core, connecting two BB caps on the iron core. The conductive plate can be directly inserted into the groove to achieve conductivity between the two BB caps, eliminating the need for tedious electrical tape application. Production equipment can accurately insert the conductive plate into the groove using an automated robotic arm or other device. This not only improves production efficiency but also reduces the impact of human factors on product quality, thereby enhancing product quality stability.

[0019] This invention provides precise positioning and support for the stator core by adding positioning posts and positioning slots in the radial and axial directions. During the injection molding process, even if subjected to uneven external forces, the stator core can maintain a stable position and is less prone to displacement, thus ensuring the consistency and stability of the motor's internal structure and reducing noise generated during operation. Attached Figure Description

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

[0021] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0022] Figure 3 This is a three-dimensional schematic diagram of the motor and support of this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the conductive plate and the conductive plate groove of this utility model;

[0024] Figure 5 This is a three-dimensional schematic diagram of the iron core of this utility model;

[0025] Figure 6 This is a three-dimensional schematic diagram of the iron core of this utility model from another perspective.

[0026] In the diagram: 1-Iron core; 101-Through hole; 102-First sector-shaped injection body; 103-Second sector-shaped injection body; 104-Third sector-shaped injection body; 105-Positioning groove; 2-Ejector pin; 3-Conductor plate groove; 4-Coupling; 5-Support; 501-Connecting block; 6-Upper clamp; 601-Connecting groove; 602-First connecting part; 7-Lower clamp; 701-Second connecting part; 8-Motor; 801-Lead wire clamp; 9-First rubber ring; 10-Second rubber ring; 11-Connecting plate; 12-Bolt; 13-Nut; 14-Conductor plate. Detailed Implementation

[0027] 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. Example

[0028] Please see Figures 1 to 6 This utility model provides a technical solution:

[0029] A coil injection molded stator assembly, comprising:

[0030] The iron core 1 is located inside the motor 8. The iron core 1 is composed of a first sector-shaped injection molded body 102, a second sector-shaped injection molded body 103 and a third sector-shaped injection molded body 104. The upper end face of the iron core 1 is provided with a ejector pin 2. The iron core 1 is provided with a positioning post and a positioning groove 105 in the radial and axial directions. A guide plate groove 3 is opened between the upper end face, the lower end face and the outer wall of the iron core 1.

[0031] Support 5, which is located at the rear end of motor 8 and is used to support motor 8;

[0032] The iron core 1 is provided with a guide plate 14 in the guide plate groove 3 to connect the two BB covers (plastic-sealed motor 8 end covers).

[0033] In this embodiment, the coiling machine requires multiple motors 8, and the demand for iron core 1 is large. The limited precision of the mold leads to uneven distribution of plastic, requiring more material to fill the mold cavity to ensure the integrity and performance of the iron core 1. Furthermore, the customer installation position in the coiling machine is relatively long, and the motor 8 needs to be equipped with more functional components or structural parts. By adopting a fan-shaped injection molding structure, using the first fan-shaped injection molding body 102, the second fan-shaped injection molding body 103, and the third fan-shaped injection molding body 104, the material is concentrated and distributed in key parts according to the specific stress and functional requirements of the motor 8, avoiding unnecessary material accumulation, thereby saving materials and reducing costs.

[0034] In this embodiment, the motor 8 inside the coil machine is electrically connected by applying electrical tape. This requires manual, precise application of the tape to specific locations to ensure electrical continuity between the two BB caps (the end caps of the encapsulated motor 8). This process is cumbersome, especially in large-scale production where each component requires this operation. Issues such as uneven tape application or misalignment can affect the electrical performance and quality stability of the product, consuming significant time and labor costs. By providing a conductive plate groove 3 on the iron core 1, which connects to the BB caps at the iron core 12, the conductive plate 14 can be directly inserted into the groove to achieve electrical continuity between the two BB cap structures. This eliminates the need for the cumbersome application of electrical tape. The production equipment can accurately insert the conductive plate 14 into the groove using an automated robotic arm or other device, without manual intervention. This improves production efficiency, reduces the impact of human factors on product quality, and enhances product quality stability.

[0035] In this embodiment, during the production of the motor 8, the stator core 1 needs to be injection molded. When the stator core 1 is not effectively positioned, the injection molded material will exert uneven force on the stator core 1 during the molding process. Since the stator core 1 does not have corresponding fixing measures, it is easy to run out of position and generate noise under the action of these unbalanced forces. By adding positioning posts and positioning grooves 105 in the radial and axial directions of the stator core 1, precise positioning and support are provided for the stator core 1. During the injection molding process, even if subjected to uneven external forces, the stator core 1 can maintain a stable position and is not prone to running out of position. This ensures the consistency and stability of the internal structure of the motor 8 and reduces the noise generated during operation.

[0036] Specifically, the front end of the support 5 is fixedly connected to a protruding connecting block 501.

[0037] Specifically, the connecting block 501 passes through the connecting groove 601 opened at the top of the upper clamp 6 and the lower clamp 7 to the other side to form a snap-fit.

[0038] Specifically, the bottom of the upper clamp 6 and the lower clamp 7 are respectively provided with a first connecting part 602 and a second connecting part 701, and the first connecting part 602 and the second connecting part 701 cooperate with each other to wrap the first rubber ring 9 and the second rubber ring 10.

[0039] Specifically, the first connecting part 602 and the second connecting part 701 are fixed to the nut 13 by bolts 12, the bottom of the bolts 12 is connected to the connecting plate 11, and the connecting plate 11 is connected to the bolts 12 on both sides.

[0040] Specifically, the first rubber ring 9 and the second rubber ring 10 are respectively disposed on both sides of the motor 8.

[0041] Specifically, the lead wire clamp plate 801 is fixedly connected to the outside of the motor 8.

[0042] Specifically, a through hole 101 is provided inside the iron core 1, and the iron cores 1 are connected by a coupling 4, which passes through the through hole 101.

[0043] In use, this utility model requires multiple motors 8 in the coiling machine, and the demand for iron core 1 is large. The limited precision of the mold leads to uneven distribution of plastic, requiring more material to fill the mold cavity to ensure the integrity and performance of the iron core 1. In addition, the customer installation position in the coiling machine is relatively long, and the motor 8 needs to be equipped with more functional components or structural parts. However, by adopting a fan-shaped injection molding structure, using the first fan-shaped injection molding body 102, the second fan-shaped injection molding body 103 and the third fan-shaped injection molding body 104, the material is concentrated and distributed in key parts according to the specific stress and functional requirements of the motor 8, avoiding unnecessary material accumulation, thereby saving materials and reducing costs.

[0044] The internal motor 8 of the coil machine is electrically connected by applying electrical tape. This requires manual, precise application of the tape to specific locations to ensure electrical continuity between the two BB caps (the end caps of the encapsulated motor 8). This process is tedious, especially in large-scale production where every component requires this operation. Issues such as uneven tape application or misalignment can affect the electrical performance and quality stability of the product, resulting in significant time and labor costs. By installing a conductive plate groove 3 on the iron core 1, which connects to the BB caps at the iron core 12, the conductive plate 14 can be directly inserted into the groove to achieve electrical continuity between the two BB cap structures. This eliminates the need for the tedious application of electrical tape. The production equipment can accurately insert the conductive plate 14 into the groove using an automated robotic arm or other device, improving production efficiency, reducing the impact of human factors on product quality, and enhancing product quality stability.

[0045] During the production of motor 8, the stator core 1 needs to be injection molded. When the stator core 1 is not effectively positioned, the injection molded material will exert uneven force on the stator core 1 during the molding process. Since the stator core 1 does not have corresponding fixing measures, it is easy to run out of position and generate noise under the action of these unbalanced forces. By adding positioning posts and positioning grooves 105 in the radial and axial directions of the stator core 1, precise positioning and support are provided for the stator core 1. During the injection molding process, even if it is subjected to uneven external forces, the stator core 1 can maintain a stable position and is not prone to running out of position. This ensures the consistency and stability of the internal structure of motor 8 and reduces the noise generated during operation.

[0046] All other parts of this utility model not described herein are the same as existing technologies, or are known technologies, or can be implemented using existing technologies, and will not be described in detail here.

[0047] 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 coil injection molded stator assembly, characterized in that, include: The iron core (1) is located inside the motor (8). The iron core (1) is composed of a first sector injection molding body (102), a second sector injection molding body (103) and a third sector injection molding body (104). The upper end face of the iron core (1) is provided with a ejector pin (2). The radial and axial radial sides of the iron core (1) are provided with positioning pins and positioning grooves (105). A guide plate groove (3) is opened between the upper end face, the lower end face and the outer wall of the iron core (1). Support (5), the support (5) is located at the rear end of the motor (8) and is used to support the motor (8); A guide plate (14) is provided in the guide plate groove (3) of the iron core (1) to connect the two plastic-sealed motor (8) end caps.

2. The coil injection molded stator assembly according to claim 1, characterized in that: The front end of the support (5) is fixedly connected to a protruding connecting block (501).

3. The coil injection molded stator assembly according to claim 2, characterized in that: The connecting block (501) passes through the connecting groove (601) opened at the top of the upper clamp (6) and the lower clamp (7) to the other side to form a snap-fit.

4. The coil injection molded stator assembly according to claim 3, characterized in that: The bottom of the upper clamp (6) and the lower clamp (7) are respectively provided with a first connecting part (602) and a second connecting part (701), and the first connecting part (602) and the second connecting part (701) cooperate with each other to wrap the first rubber ring (9) and the second rubber ring (10).

5. A coil injection molded stator assembly according to claim 4, characterized in that: The first connecting part (602) and the second connecting part (701) are fixed to the nut (13) by bolts (12), the bottom of the bolts (12) are connected to the connecting plate (11), and the connecting plate (11) is connected to the bolts (12) on both sides.

6. The coil injection molded stator assembly according to claim 4, characterized in that: The first rubber ring (9) and the second rubber ring (10) are respectively disposed on both sides of the motor (8).

7. The coil injection molded stator assembly according to claim 1, characterized in that: The motor (8) is fixedly connected to the lead wire clamp (801) on the outside.

8. The coil injection molded stator assembly according to claim 1, characterized in that: The iron core (1) is provided with a through hole (101), and the iron cores (1) are connected by a coupling (4), which passes through the through hole (101).

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