Hall sensor mounting device for fan controller

Abstract

The invention relates to a Hall sensor mounting device for a fan controller, which is used for mounting a Hall sensor in the fan controller and comprises a sensor mounting base, and the sensor mounting base comprises a sensor fixing surface, a pin limiting hole, a sensor base mounting surface and a welding spot avoiding groove. The sensor fixing face is arranged at the top of the sensor mounting base, the pin limiting hole is located in the bottom of a mounting cavity defined by the sensor fixing face and vertically penetrates through the middle of the sensor mounting base, and the sensor base mounting face and the welding spot receding groove are arranged at the bottom of the sensor mounting base. And the opening direction of the welding spot avoiding groove extends along the direction parallel to the mounting surface of the sensor base. In a word, the device has the advantages that the structure is simple, the operation is convenient, the position deviation is not easy to occur, the stability is good, and the fan performance is obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of brushless DC fans, and in particular to a Hall sensor mounting device for a fan controller. Background Art

[0002] A DC fan is a fan that converts DC power into mechanical energy by inputting DC power to rotate the DC motor and drive the fan impeller to rotate. The most commonly used one is the DC brushless motor. The brushless DC motor has a greatly simplified structure because it omits the collector ring and brushes for excitation. At the same time, it not only improves the processability of the motor, but also greatly enhances the mechanical reliability of the motor operation and increases its lifespan.

[0003] Due to the structural characteristics of brushless DC fans, Hall sensors are required in fan controllers to collect the rotor position. However, the existing leaded Hall sensor pins are relatively soft and different fans have different height requirements for Hall sensors. As a result, the Hall sensor pins cannot be installed close to the controller circuit board during use. As a result, during vibration or fan assembly, the Hall sensor pins may deviate from their original positions due to vibration and shock, causing the fan performance to deteriorate or even a starting dead point. Therefore, it is necessary to design a Hall sensor base installation device with high structural strength to solve the above problems. Summary of the invention

[0004] In view of this, the present invention proposes a Hall sensor installation device for a fan controller, which is applied to the technical field of brushless DC fans to solve the technical problems of existing Hall sensors that are inconvenient to install, prone to position deviation, poor fan performance and prone to starting dead points.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A Hall sensor installation device for a fan controller is used for installing the Hall sensor in the fan controller, comprising a sensor installation base, the sensor installation base comprising a sensor fixing surface, a pin limiting hole, a sensor base installation surface and a solder point avoidance groove, the sensor fixing surface is arranged at the top of the sensor installation base, the pin limiting hole is located at the bottom of the installation cavity formed by the sensor fixing surface and vertically passes through the middle of the sensor installation base, the sensor base installation surface and the solder point avoidance groove are arranged at the bottom of the sensor installation base, the opening direction of the solder point avoidance groove extends along a direction parallel to the sensor base installation surface, the Hall sensor and the sensor installation base are both fixed on the circuit installation surface of the controller circuit board, the Hall sensor is provided with a sensor pin, the sensor pin passes through the pin limiting hole during the installation process, the Hall sensor is fitted with the sensor fixing surface, the sensor base installation surface is fitted with the circuit board installation surface of the controller circuit board, and the sensor pin is soldered to the controller circuit board by soldering.

[0007] Furthermore, a solder point avoidance groove is arranged at the bottom of the sensor mounting base, and solder pads are arranged on both sides of the controller circuit board during the installation process of the Hall sensor. The direction of the solder point avoidance groove corresponds to the solder pad position. The solder point avoidance groove can allow the solder to fully fill the solder pads on both sides of the controller circuit board, and the Hall sensor pins are fixed more firmly to prevent poor welding problems.

[0008] Furthermore, the bottom of the sensor mounting base is filled with glue, and the glue application position and the welding point avoidance groove are respectively located on different sides of the bottom of the sensor mounting base. The glue is filled at the root of the sensor base, so that the sensor base is fixed more firmly, thereby improving the overall stability of the Hall sensor mounting structure.

[0009] Furthermore, the sensor mounting base is integrally formed by plastic compression molding of non-metallic materials to ensure the insulation performance of the sensor pins.

[0010] The present invention has the following beneficial effects:

[0011] The present invention mentions a Hall sensor installation device for a fan controller, which can limit the distance between the Hall sensor and the surface of the controller circuit board through the sensor fixing surface, and can limit the lateral displacement of the Hall sensor through the pin limiting hole, and can achieve bonding with the circuit board mounting surface of the controller circuit board through the sensor base mounting surface, and can fully fill the solder pads on both sides of the controller circuit board through the solder avoidance groove, so that the sensor pins are fixed more firmly and prevent poor welding problems. By filling the root of the sensor base with glue, the sensor base is fixed more firmly, and the overall stability of the Hall sensor installation structure is improved. It has the advantages of simple structure, easy operation, not prone to position displacement, good stability and significantly improved fan performance, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A schematic diagram of the structure of a Hall sensor installation device for a fan controller provided by the present invention;

[0014] Figure 2 It is a schematic diagram of the connection structure between the sensor mounting base and the circuit board mounting surface in a specific embodiment of the present invention;

[0015] Figure 3 It is a schematic diagram of the connection structure between the welding point avoidance groove and the sensor mounting base in a specific embodiment of the present invention;

[0016] Among them: 1. Sensor mounting base; 2. Circuit board mounting surface; 3. Sensor fixing surface; 4. Pin limiting hole; 5. Sensor base mounting surface; 6. Solder point avoidance groove; 7. Hall sensor. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0019] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present invention, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0020] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0021] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0022] Example 1

[0023] like Figures 1 to 3 As shown, a Hall sensor installation device for a fan controller is used for installing a Hall sensor in a fan controller, comprising a sensor installation base 1, the sensor installation base 1 comprising a sensor fixing surface 3, a pin limiting hole 4, a sensor base installation surface 5 and a solder point avoidance groove 6, the sensor fixing surface 3 is arranged at the top of the sensor installation base 1, the pin limiting hole 4 is located at the bottom of the installation cavity formed by the sensor fixing surface 3, and vertically passes through the middle of the sensor installation base 1, the sensor base installation surface 5 and the solder point avoidance groove 6 are arranged at the bottom of the sensor installation base 1, the opening direction of the solder point avoidance groove 6 extends along a direction parallel to the sensor base installation surface 5, the Hall sensor 7 and the sensor installation base 1 are both fixed on the circuit installation surface 2 of the controller circuit board, the Hall sensor is provided with a sensor pin, the sensor pin passes through the pin limiting hole 4 during the installation process, the Hall sensor 7 is fitted with the sensor fixing surface 3, the sensor base installation surface 5 is fitted with the circuit board installation surface of the controller circuit board, and the sensor pin is soldered to the controller circuit board by soldering.

[0024] The solder point avoidance groove 6 passes horizontally through the bottom of the sensor mounting base 1. Solder pads are set on both sides of the controller circuit board during the installation of the Hall sensor. The opening of the solder point avoidance groove 6 faces the corresponding solder pad position. The solder point avoidance groove 6 can allow the solder to fully fill the solder pads on both sides of the controller circuit board, and the Hall sensor pins are fixed more firmly to prevent poor welding problems. The bottom of the sensor mounting base 1 is filled with glue, and the position of applying the glue is located in the solder point avoidance groove 6 at the bottom of the sensor mounting base 1. The glue is filled at the root of the Hall sensor base, so that the Hall sensor base 1 is fixed more firmly, and the overall stability of the Hall sensor installation structure is improved. The sensor mounting base 1 is integrally formed by non-metallic material plastic compression molding to ensure the insulation performance of the Hall sensor pin.

[0025] During use of the present invention, the sensor pin passes through the pin limiting hole 4, the Hall sensor is fitted with the sensor fixing surface 3, the sensor base mounting surface 5 is fitted with the circuit board mounting surface 2 of the controller circuit board, and the sensor pin is welded to the controller circuit board by soldering. After welding is completed, glue is filled at the root of the Hall sensor to complete the fixed installation of the Hall sensor on the controller circuit board. In short, the present invention has the advantages of simple structure, easy operation, not prone to position displacement, good stability and significantly improved fan performance.

[0026] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A Hall sensor installation device for a fan controller, used for installing a Hall sensor in a fan controller, characterized in that: The invention comprises a sensor mounting base (1), wherein the sensor mounting base (1) comprises a sensor fixing surface (3), a pin limiting hole (4), a sensor base mounting surface (5) and a solder point avoidance groove (6), wherein the sensor fixing surface (3) is arranged at the top of the sensor mounting base (1), the pin limiting hole (4) is located at the bottom of a mounting cavity formed by the sensor fixing surface (3) and vertically passes through the middle of the sensor mounting base (1), the sensor base mounting surface (5) and the solder point avoidance groove (6) are arranged at the bottom of the sensor mounting base (1), and the solder point avoidance groove The opening direction of (6) extends in a direction parallel to the sensor base mounting surface (5); the Hall sensor (7) and the sensor mounting base (1) are both fixed on the circuit mounting surface (2) of the controller circuit board; the Hall sensor (7) is provided with a sensor pin, and the sensor pin passes through the pin limiting hole (4) during the installation process; the Hall sensor (7) is fitted with the sensor fixing surface (3), and the sensor base mounting surface (5) is fitted with the circuit board mounting surface (2) of the controller circuit board; the sensor pin is soldered to the controller circuit board by soldering.

2. A Hall sensor installation device for a fan controller according to claim 1, characterized in that: The solder point avoidance groove (6) is arranged at the bottom of the sensor mounting base (1), solder pads are arranged on both sides of the controller circuit board during the installation process of the Hall sensor, and the solder point avoidance groove (6) is oriented in a direction corresponding to the solder pad position.

3. A Hall sensor installation device for a fan controller according to claim 2, characterized in that: The bottom of the sensor mounting base (1) is filled with glue, and the location where the glue is applied is located in the welding point avoidance groove (6) at the bottom of the sensor mounting base (1).

4. A Hall sensor installation device for a fan controller according to claim 3, characterized in that: The sensor mounting base (1) is integrally formed by plastic compression molding of non-metallic materials.

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