Circuit board mounting skeleton and motor

Abstract

The utility model relates to motor technical field, especially a kind of circuit board mounting framework and motor, including stator framework and circuit board, the stator framework is provided with cavity, the wall surface of the cavity is provided with support frame, the support frame is provided with fixed element, the circuit board is provided with fixed groove, the circuit board is set on support frame, the fixed element is cooperated with fixed groove, to fix circuit board on support frame.The utility model makes the layout of circuit board in motor interior more reasonable, makes full use of the space of stator framework, is favorable for the heat dissipation and electromagnetic shielding in motor interior, further improves the performance and reliability of motor, prolongs the service life of motor.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a circuit board mounting frame and a motor. Background Technology

[0002] Electric motors, as devices that convert electrical energy into mechanical energy (or vice versa), play a vital role in modern industry and daily life. In the field of electric motors, circuit board installation is a crucial step, as its quality directly affects the motor's performance and reliability. However, existing methods for installing motor circuit boards present numerous problems. Currently, the installation process for circuit boards in many motors is extremely inconvenient. The installation steps are complex, often requiring workers to spend a significant amount of time finding suitable installation positions and angles. Furthermore, the installation process necessitates the use of various tools for tedious operations, which not only increases labor costs but also reduces production efficiency.

[0003] In terms of stability, existing installation methods cannot guarantee the stability of the circuit board during motor operation. Motor operation generates vibrations and impacts; if the circuit board is not securely installed, it is prone to loosening or displacement, leading to damage to electronic components or poor electrical connections, affecting the normal operation of the motor, and even causing safety accidents. Furthermore, existing installation methods are not conducive to circuit board maintenance. When the circuit board malfunctions and needs repair or replacement, the complex installation structure and difficult disassembly process require significant time and effort, increasing maintenance costs and downtime, and causing considerable inconvenience to motor use and maintenance. Therefore, a more convenient, stable, and easy-to-maintain motor circuit board installation solution is urgently needed. Utility Model Content

[0004] To solve the above problems, this utility model makes the circuit board layout inside the motor more reasonable, makes full use of the space of the stator frame, facilitates heat dissipation and electromagnetic shielding inside the motor, and further improves the performance and reliability of the motor circuit board mounting frame and motor.

[0005] The technical solution adopted by this utility model is: a circuit board mounting frame, including a stator frame and a circuit board, wherein the stator frame is provided with a cavity, the wall of the cavity is provided with a support frame, the support frame is provided with a fixing element, the circuit board is provided with a fixing groove, the circuit board is mounted on the support frame, and the fixing element cooperates with the fixing groove to fix the circuit board on the support frame.

[0006] A further improvement to the above scheme is that the stator frame is provided with a first surface and a second surface, the first surface and the second surface are opposite to each other, and the cavity extends from the first surface to the second surface.

[0007] A further improvement to the above solution is that a first sink groove is formed between the first surface and the support frame, and a second sink groove is formed between the second surface and the support frame, wherein the depth of the first sink groove is smaller than the depth of the second sink groove.

[0008] A further improvement to the above solution is that the support frame is provided with a through groove, which passes through the support frame and connects the first sink and the second sink; the circuit board is provided with a capacitor and a connector, both of which extend toward the second sink.

[0009] A further improvement to the above solution is that the support frame is provided with a protrusion that extends toward the inner diameter of the cavity, and the fixing element is disposed on the protrusion.

[0010] A further improvement to the above solution is that the fixing element is provided with a fixing buckle, the fixing groove is a rectangular groove, and the fixing buckle is used to fix the circuit board on the support frame by cooperating with the fixing groove.

[0011] A further improvement to the above solution is that the end face of the fixing buckle is provided with a bevel.

[0012] A further improvement to the above scheme is that the support frame is arranged in a ring shape within the cavity.

[0013] A further improvement to the above solution is that multiple fixing elements are provided, and the number of fixing slots is the same as the number of fixing elements.

[0014] An electric motor includes the aforementioned circuit board mounting frame for the stator frame of the motor, wherein the circuit board is the control board of the motor.

[0015] The beneficial effects of this utility model are:

[0016] Compared to existing motor frame and circuit board installation methods, this invention offers significant advantages in installation convenience. The stator frame's cavity wall features a support frame, allowing the circuit board to be placed directly on it. The design of the fixing components and mounting slots further simplifies and streamlines the circuit board installation process. Workers simply align the circuit board with the support frame and insert the fixing components into the mounting slots to quickly complete the installation, greatly reducing assembly time and improving production efficiency. Regarding stability, the tight fit between the fixing components and the mounting slots provides reliable fixation for the circuit board. During motor operation, vibrations and impacts occur; this installation method effectively prevents the circuit board from loosening or shifting due to vibration, ensuring it remains in a stable working position, guaranteeing stable motor operation, and reducing the probability of malfunctions caused by loose circuit boards. In terms of maintenance, when the circuit board needs inspection or replacement, the non-permanent connection between the fixing components and the mounting slots allows for easy removal of the circuit board from the support frame, facilitating inspection, repair, or replacement and reducing the difficulty and cost of motor maintenance. This allows for a more rational layout of the circuit board inside the motor, making full use of the space in the stator frame. It also facilitates heat dissipation and electromagnetic shielding within the motor, further improving the motor's performance and reliability, and extending its service life. Attached Figure Description

[0017] Figure 1 A three-dimensional schematic diagram of the circuit board mounting frame of this utility model;

[0018] Figure 2 for Figure 1 Exploded view of the mounting frame for the circuit board;

[0019] Figure 3 for Figure 1 An exploded view of the mounting frame for the circuit board from another perspective.

[0020] Explanation of reference numerals in the attached drawings: stator frame 1, cavity 11, support frame 12, through groove 121, protrusion 122, fixing element 13, fixing buckle 131, inclined surface 132, first surface 14, first recessed groove 141, second surface 15, second recessed groove 151, circuit board 2, fixing groove 21, capacitor 22, connector 23. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-3 As shown, in one embodiment of this utility model, a circuit board mounting frame is provided, including a stator frame 1 and a circuit board 2. The stator frame 1 is provided with a cavity 11, and a support frame 12 is provided on the wall of the cavity 11. The support frame 12 is provided with a fixing element 13, and the circuit board 2 is provided with a fixing groove 21. The circuit board 2 is mounted on the support frame 12, and the fixing element 13 cooperates with the fixing groove 21 to fix the circuit board 2 on the support frame 12. In terms of ease of installation, the support frame 12 on the wall of the cavity 11 of the stator frame 1 allows the circuit board 2 to be placed directly on the support frame 12. At the same time, the cooperative design of the fixing element 13 and the fixing groove 21 makes the installation process of the circuit board 2 simple and efficient. The operator only needs to align the circuit board 2 with the support frame 12 and insert the fixing element 13 into the fixing groove 21 to quickly complete the installation of the circuit board 2, which greatly shortens the assembly time in the motor production process and improves production efficiency. In terms of stability, the tight cooperation between the fixing element 13 and the fixing groove 21 provides reliable fixation for the circuit board 2. During operation, the motor generates vibration and impact. This installation method effectively prevents the circuit board 2 from loosening or shifting due to vibration, ensuring that the circuit board 2 remains in a stable working position, guaranteeing stable motor operation, and reducing the probability of malfunctions caused by loose circuit board 2. In terms of maintenance, when the circuit board 2 needs inspection or replacement, since the connection between the fixing element 13 and the fixing slot 21 is not permanent, the circuit board 2 can be easily removed from the support frame 12, facilitating inspection, repair, or replacement, and reducing the difficulty and cost of motor maintenance. This also results in a more rational layout of the circuit board 2 within the motor, fully utilizing the space of the stator frame 1, which is beneficial for internal heat dissipation and electromagnetic shielding, further improving motor performance and reliability, and extending motor lifespan.

[0024] The stator frame 1 has a first surface 14 and a second surface 15, with the first surface 14 and the second surface 15 facing each other. The cavity 11 extends from the first surface 14 to the second surface 15. Specifically, a first recess 141 is formed between the first surface 14 and the support frame 12, and a second recess 151 is formed between the second surface 15 and the support frame 12. The depth of the first recess 141 is smaller than the depth of the second recess 151. In this embodiment, the recesses of different depths provide a flexible spatial layout for the installation of the circuit board 2 and related components. The shallower first recess 141 can be used to install some thinner and lighter components with smaller space requirements, while the deeper second recess 151 can accommodate larger and more complex components, allowing the components inside the motor to be rationally distributed, avoiding mutual interference, and improving the compactness and orderliness of the installation. In terms of heat dissipation, the through cavity 11 and the recesses of different depths facilitate air circulation inside the motor. Hot air can be quickly exhausted through the channel formed by cavity 11 and the sink, carrying away the heat generated by components such as circuit board 2, effectively reducing the motor's operating temperature, improving the motor's heat dissipation efficiency, and thus ensuring stable motor performance. Since the components are installed in sinks of different depths, they are easy to identify and distinguish. When maintenance or replacement is required, the target component can be quickly located, reducing maintenance difficulty and time costs, and improving the motor's maintainability.

[0025] The support frame 12 is provided with a through slot 121, which passes through the support frame 12 and connects the first recess 141 and the second recess 151. The circuit board 2 is provided with a capacitor 22 and a connector 23, both of which extend towards the second recess 151. In this embodiment, the through slot 121 of the support frame 12 connects the first recess 141 and the second recess 151, resulting in efficient integration of the internal space of the motor. The capacitor 22 and connector 23 on the circuit board 2 extend towards the second recess 151, making reasonable use of the space in the second recess 151 and avoiding crowding and interference in the limited internal space of the motor, making the internal layout of the motor more compact and reasonable. The existence of the through slot 121 forms an air circulation channel. When the motor is running, the heat generated by the circuit board 2 can be transferred from the first recess 141 to the second recess 151 through the through slot 121, and then dissipated through the second recess 151. The capacitor 22 and connector 23 extend towards the second recess 151, allowing these heat-generating components to better exchange heat with the outside environment, effectively reducing their operating temperature, improving component stability and service life, and thus ensuring the overall performance of the motor. This also helps reduce electromagnetic interference. The through-slot 121 makes the electrical connections on the circuit board 2 more organized. With the capacitor 22 and connector 23 extending in the same direction, it reduces wiring crossings and tangles, lowers the possibility of electromagnetic coupling, improves the motor's electromagnetic compatibility, and makes the motor operation more stable and reliable.

[0026] The support frame 12 is provided with a protrusion 122, which extends toward the inner diameter of the cavity 11, and the fixing element 13 is disposed on the protrusion 122. In this embodiment, the design of the protrusion 122 makes the position of the fixing element 13 more reasonable. Since the protrusion 122 extends toward the inner diameter of the cavity 11, the fixing element 13 can more accurately cooperate with the fixing groove 21 on the circuit board 2, enhancing the tightness of the connection between the circuit board 2 and the support frame 12. The motor will generate vibration and impact during operation, which can effectively prevent the circuit board 2 from loosening or shifting due to vibration, ensuring that the circuit board 2 is always in a stable working position, ensuring the stable operation of the motor, and reducing the probability of failure caused by the loosening of the circuit board 2. The setting of the protrusion 122 makes full use of the space inside the cavity 11. In the limited internal space of the motor, it avoids occupying too much radial space, making the internal layout of the motor more compact. By setting the fixing element 13 on the protrusion 122, the reliable fixing of the circuit board 2 is cleverly achieved without increasing the overall volume, which is conducive to the miniaturization design of the motor.

[0027] The fixing element 13 is provided with a fixing buckle 131, and the fixing groove 21 is a rectangular groove. The fixing buckle 131 is used to fix the circuit board 2 onto the support frame 12 by engaging the fixing groove 21. Specifically, the end face of the fixing buckle 131 is provided with a bevel 132. In this embodiment, the bevel 132 on the end face of the fixing buckle 131 plays a key role. When the circuit board 2 is installed onto the support frame 12, the bevel 132 can guide the fixing buckle 131, making it easier to align and slide into the rectangular fixing groove 21. The operator does not need to precisely align the fixing buckle 131 with the fixing groove 21. During the placement of the circuit board 2, the bevel 132 will automatically adjust the position of the buckle, allowing it to smoothly embed into the fixing groove 21, greatly reducing the installation difficulty, improving the installation efficiency, and reducing the time required for motor assembly. The tight fit between the rectangular fixing groove 21 and the fixing buckle 131 can effectively restrict the movement of the circuit board 2 in all directions. The vibrations and impacts generated during motor operation will not easily cause the fixing clip 131 to come out of the fixing slot 21, ensuring that the circuit board 2 is always in a stable working position, avoiding faults such as poor electrical connection and short circuit caused by loose circuit board 2, and improving the reliability and stability of motor operation.

[0028] The support frame 12 is arranged in a ring shape within the cavity 11 to support the circuit board 2. Specifically, multiple fixing elements 13 are provided, and the number of fixing slots 21 is the same as the number of fixing elements 13. In this embodiment, the ring-shaped support frame 12 can provide all-round support for the circuit board 2. During the operation of the motor, vibration and centrifugal force are generated. The ring structure can evenly distribute these external forces, preventing the circuit board 2 from being damaged due to excessive local stress. It ensures that the circuit board 2 is always in a stable position inside the motor, providing a stable working environment for the electronic components on the circuit board 2, and greatly reducing the probability of failures such as loose solder joints and component detachment caused by vibration. The corresponding arrangement of multiple fixing elements 13 and fixing slots 21 enhances the connection strength between the circuit board 2 and the support frame 12. Multiple fixing points can fix the circuit board 2 from different positions, making the circuit board 2 more firmly installed on the support frame 12. It effectively prevents the circuit board 2 from shifting or shaking during motor operation, ensuring the stability of the electrical connection between the circuit board 2 and other components, thereby improving the overall performance and reliability of the motor.

[0029] In this motor, circuit board 2 is mounted on a frame for the stator frame 1, and circuit board 2 serves as the motor's control board. Combining circuit board 2 with the stator frame 1 achieves a high degree of integration of the motor's internal structure. Previously independent components are integrated, reducing the overall size and weight of the motor, making it more compact and suitable for applications with high space and weight constraints. Simultaneously, the integrated design simplifies the motor assembly process, reduces production difficulty and cost, and improves production efficiency. Mounting the control board on the stator frame 1 shortens the electrical connection distance between the control board and the motor stator, reducing line resistance and inductance, and minimizing signal transmission losses and interference. This helps improve the transmission speed and accuracy of control signals, enabling the motor to respond more precisely to control commands, thus improving the motor's speed regulation performance and control precision.

[0030] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A circuit board mounting frame, characterized in that: The device includes a stator frame and a circuit board. The stator frame has a cavity, and the wall of the cavity has a support frame. The support frame has a fixing element, and the circuit board has a fixing groove. The circuit board is mounted on the support frame, and the fixing element cooperates with the fixing groove to fix the circuit board on the support frame.

2. The circuit board mounting skeleton according to claim 1, characterized by: The stator frame has a first surface and a second surface, with the first surface and the second surface facing each other, and the cavity extending from the first surface to the second surface.

3. The circuit board mounting skeleton according to claim 2, characterized by: A first sink groove is formed between the first surface and the support frame, and a second sink groove is formed between the second surface and the support frame. The depth of the first sink groove is smaller than the depth of the second sink groove.

4. The circuit board mounting skeleton according to claim 3, characterized by: The support frame is provided with a through groove that passes through the support frame and connects the first sink and the second sink. The circuit board is provided with a capacitor and a connector, both of which extend toward the second sink.

5. The circuit board mounting skeleton according to claim 1, characterized by: The support frame is provided with a protrusion that extends toward the inner diameter of the cavity, and the fixing element is provided on the protrusion.

6. The circuit board mounting skeleton according to claim 1, characterized by: The fixing element is provided with a fixing buckle, and the fixing groove is a rectangular groove. The fixing buckle is used to fix the circuit board on the support frame by cooperating with the fixing groove.

7. The circuit board mounting skeleton according to claim 6, characterized by: The end face of the fixing buckle is provided with a bevel.

8. The circuit board mounting skeleton according to claim 1, characterized by: The support frame is arranged in a ring shape inside the cavity.

9. The circuit board mounting skeleton according to claim 1, characterized by: The fixing element is provided in multiple ways, and the number of fixing slots is the same as the number of fixing elements.

10. An electric machine characterized by: The circuit board mounting frame, as described in any one of claims 1 to 9, is used as the stator frame of a motor, and the circuit board is the control board of the motor.

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