Brushless direct current motor controller for air purifier

By incorporating an auxiliary installation structure consisting of a connection box and mounting plate into the air purifier, the installation challenge of the brushless DC motor controller was solved, achieving precise positioning and efficient heat dissipation, thus improving installation efficiency.

CN223512252UActive Publication Date: 2025-11-04NINGBO ZHONGXIN ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202422747692.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-11-04
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

The installation of brushless DC motor controllers in existing air purifiers is difficult to position precisely, affecting installation efficiency.

Method used

An auxiliary installation structure, including a connection box and a mounting plate, is set outside the controller body. The connection box is fixed to the air purifier by pre-installation, and the mounting plate and support column are used to connect to the connection box to achieve precise positioning and heat dissipation of the controller.

Benefits of technology

It enables precise positioning and installation of the controller, simplifies the installation process, improves installation efficiency, and provides effective heat dissipation through ventilation holes.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223512252U_ABST
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Abstract

The utility model discloses a brushless direct current motor controller for an air purifier, which comprises a controller body, a wiring port is arranged on the surface of one side of the controller body, and an auxiliary mounting structure is arranged on the outer surface of the controller body. The auxiliary mounting structure can determine the mounting position of the controller body through the pre-mounting of the connecting box. According to the brushless direct current motor controller for the air purifier, the connecting box is arranged on the outer surface of the controller body, the first mounting plate is arranged on the surface of the connecting box and connected with the mounting position of the air purifier, and the mounting position of the controller body can be determined and positioned through the pre-mounted connecting box; and the auxiliary controller body is connected with the air purifier.
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Description

Technical Field

[0001] This utility model relates to the field of brushless DC motor technology, specifically to a brushless DC motor controller for an air purifier. Background Technology

[0002] An air purifier is a machine that purifies air pollutants, effectively improving indoor air quality. The drive motor is the core component of an air purifier, driving the fan blades to rotate and draw air into the purifier to achieve the effect of air purification. Since air purifiers are usually installed indoors, compared with traditional brushed motors, DC brushless motors do not have friction between brushes and commutators, and generate very low noise during operation, making them suitable for use in indoor environments.

[0003] DC brushless motors require a controller for precise control of parameters such as speed, direction, and torque. Currently, the controller is usually installed by directly connecting it to the air purifier with bolts. However, during installation, it is impossible to guarantee that the controller will not shift, which increases the difficulty of installation and affects the efficiency of the installation. Utility Model Content

[0004] The purpose of this invention is to provide a brushless DC motor controller for an air purifier. This device has an auxiliary installation structure on the outside of the controller. By utilizing the auxiliary installation structure and the pre-installation of the air purifier, the controller can be connected to the controller, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a brushless DC motor controller for an air purifier, comprising a controller body, a wiring port provided on one side surface of the controller body, and an auxiliary installation structure provided on the outer surface of the controller body. The auxiliary installation structure can determine the installation position of the controller body by pre-installing a connecting box.

[0006] Preferably, the auxiliary installation structure includes a connecting box, which is an open structure with a square notch on one side surface. A cover is provided on the upper surface of the connecting box, and the cover is slidably connected to the connecting box. A connecting plate is fixedly installed on the side surface of the cover, and the surface of the connecting plate is connected to the side surface of the connecting box by bolts.

[0007] Using the above technical solution, the connection box and air purifier can be pre-installed using the auxiliary installation structure, and the auxiliary controller body can be positioned.

[0008] Preferably, mounting plates are provided on both sides of the connecting box, and multiple mounting holes are provided at equal intervals on the surface of the mounting plates. Heat dissipation holes are provided through the side surface of the connecting box.

[0009] Using the above technical solution, the connection box can be installed with the air purifier using the mounting plate.

[0010] Preferably, the side surface of the controller body is provided with a connection structure, which connects the controller body to the installed connection box to realize the connection between the controller body and the air purifier.

[0011] By adopting the above technical solution, the controller body and the connection box can be connected using the connection structure.

[0012] Preferably, the connection structure includes a second mounting plate, which is fixedly mounted on both sides of the controller body. The surface of the second mounting plate is provided with multiple mounting holes. A support column is provided below the mounting holes on the surface of the second mounting plate. The support column is fixedly mounted on the bottom surface of the connection box. A threaded hole is provided above the support column.

[0013] Using the above technical solution, the controller body can be mounted inside the connection box using mounting plate two and support column.

[0014] Preferably, the supporting column and the second mounting plate are connected by a mounting rod. The mounting rod has a two-section structure, with the upper end being a threaded rod and the lower end being a smooth round rod.

[0015] Using the above technical solution, the mounting plate two can be connected to the supporting column using the mounting rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the air purifier uses a brushless DC motor controller:

[0017] 1. In this device, a connection box is provided on the outer surface of the controller body, and an installation plate is provided on the surface of the connection box to connect with the installation location of the air purifier. The installation position of the controller body can be determined by using the pre-installed connection box, which helps to connect the controller body and the air purifier.

[0018] 2. The upper surface of the connection box of this device is slidably mounted with a box cover, and a square notch is provided on one side surface of the connection box. The square notch on the side surface of the connection box allows the wiring port of the controller body to be exposed, and the slidingly opened box cover facilitates the connection of the controller body and the motor to the connection box from above after wiring.

[0019] 3. The bottom surface of the connection box of this device is provided with support columns. The controller body can be mounted inside the connection box using the mounting rod, so that the controller body is suspended from the bottom surface of the connection box. Combined with the heat dissipation holes on the surface of the connection box, the controller body can be fully cooled. Attached Figure Description

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

[0021] Figure 2 This is a schematic diagram of the opening structure of the box lid of this utility model;

[0022] Figure 3 This is a schematic diagram of the controller body and the connection box of this utility model;

[0023] Figure 4 This is a schematic diagram of the front section of the connecting box of this utility model;

[0024] Figure 5 This is a top view of the connecting box structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the support column of this utility model.

[0026] In the diagram: 1. Controller body; 2. Wiring port; 3. Connection box; 4. Box cover; 5. Connection plate; 6. Mounting plate one; 7. Heat dissipation hole; 8. Mounting plate two; 9. Mounting rod; 10. Support column. 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.

[0028] Please see Figures 1-6 This utility model provides a technical solution: a brushless DC motor controller for an air purifier, including a controller body 1, a wiring port 2, a connection box 3, a box cover 4, a connection plate 5, a mounting plate 1 6, a heat dissipation hole 7, a mounting plate 2 8, a mounting rod 9, and a support column 10.

[0029] A wiring port 2 is provided on one side surface of the controller body 1. An auxiliary installation structure is provided on the outer surface of the controller body 1. The auxiliary installation structure can determine the installation position of the controller body 1 through the pre-installation of the connection box 3. The auxiliary installation structure includes the connection box 3, which is an open structure. A square notch is provided on one side surface of the connection box 3. A cover 4 is provided on the upper surface of the connection box 3. The cover 4 is slidably connected to the connection box 3. A connecting plate 5 is fixedly installed on the side surface of the cover 4. The surface of the connecting plate 5 is connected to the side surface of the connection box 3 by bolts. Mounting plates 6 are provided on both sides of the connection box 3. Multiple mounting holes are provided at equal intervals on the surface of the mounting plates 6. A heat dissipation hole 7 is provided through the side surface of the connection box 3.

[0030] like Figure 1 and Figure 2 As shown, when using this device, the connecting box 3 is fixed inside the air purifier using the mounting holes on the surface of the mounting plate 6. At this time, there is no connection between the controller body 1 and the air purifier. The wiring port 2 on the surface of the controller body 1 is connected to the brushless DC motor inside the air purifier using a wire. The bolts on the surface of the connecting plate 5 are removed from the side surface of the connecting box 3. The box cover 4 is slid to one side on the upper surface of the connecting box 3 until the upper surface of the connecting box 3 is exposed. The controller body 1, after being connected with the wire, is inserted from above the connecting box 3, so that the controller body 1 is inserted into the square notch on the side surface of the connecting box 3. After the controller body 1 and the connecting box 3 are connected, the box cover 4 is closed. The connecting plate 5 is then connected to the side surface of the connecting box 3 again using bolts, thereby realizing the connection between the box cover 4 and the connecting box 3.

[0031] The controller body 1 has a connection structure on its side surface. The connection structure connects the controller body 1 to the connected box 3 after installation, thereby connecting the controller body 1 to the air purifier. The connection structure includes a second mounting plate 8, which is fixedly installed on both sides of the controller body 1. The surface of the second mounting plate 8 has multiple mounting holes. Below the mounting holes on the surface of the second mounting plate 8, there is a support column 10. The support column 10 is fixedly installed on the bottom surface of the connected box 3. The support column 10 has a threaded hole above it. The support column 10 and the second mounting plate 8 are connected by a mounting rod 9. The mounting rod 9 has a two-section structure. The upper end of the mounting rod 9 is a threaded rod, and the lower end of the mounting rod 9 is a smooth round rod structure.

[0032] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, after the controller body 1 is placed into the connection box 3, the smooth section of the mounting rod 9 is inserted into the support column 10 to complete the initial fixation of the controller body 1. When all the mounting rods 9 are engaged with the support column 10, the controller body 1 is now mounted in the connection box 3. Rotating the mounting rod 9 connects the threaded section of the mounting rod 9 to the support column 10, thereby connecting the controller body 1 to the connection box 3. The mounted controller body 1, together with the heat dissipation holes 7, can fully dissipate heat from the controller body 1.

[0033] Working principle: When using the brushless DC motor controller for this air purifier, the air purifier is connected to the connecting box 3 using the mounting plate 6. The box cover 4 is slid open on the upper surface of the connecting box 3, and the controller body 1 is inserted from above the connecting box 3, so that the mounting rods 9 on both sides of the controller body 1 are inserted into the support columns 10. At this time, the controller body 1 and the connecting box 3 are initially fixed. The mounting rods 9 are rotated, and the threaded section of the mounting rods 9 is used to connect the controller body 1 and the support columns 10, thereby connecting the controller body 1 and the connecting box 3. The heat dissipation holes 7 can fully dissipate heat from the controller body 1, increasing the overall practicality.

[0034] 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 brushless DC motor controller for an air purifier, comprising a controller body (1), wherein a wiring port (2) is provided on one side surface of the controller body (1), characterized in that: The outer surface of the controller body (1) is provided with an auxiliary installation structure. The installation position of the controller body (1) can be determined by the pre-installation of the connecting box (3).

2. The brushless DC motor controller for an air purifier according to claim 1, characterized in that: The auxiliary installation structure includes a connecting box (3), which is an open structure, and a square notch is provided on one side surface of the connecting box (3). A box cover (4) is provided on the upper surface of the connecting box (3). The box cover (4) is slidably connected to the connecting box (3). A connecting plate (5) is fixedly installed on the side surface of the box cover (4). The surface of the connecting plate (5) is connected to the side surface of the connecting box (3) by bolts.

3. A brushless DC motor controller for an air purifier according to claim 2, characterized in that: Mounting plates (6) are respectively provided on both sides of the connecting box (3). Multiple mounting holes are provided at equal intervals on the surface of the mounting plates (6). Heat dissipation holes (7) are provided through the side surface of the connecting box (3).

4. A brushless DC motor controller for an air purifier according to claim 1, characterized in that: The controller body (1) has a connection structure on its side surface. The connection structure connects the controller body (1) to the installed connection box (3) to realize the connection between the controller body (1) and the air purifier.

5. A brushless DC motor controller for an air purifier according to claim 4, characterized in that: The connection structure includes a second mounting plate (8), which is fixedly installed on both sides of the controller body (1). The surface of the second mounting plate (8) is provided with multiple mounting holes. A support column (10) is provided below the mounting holes on the surface of the second mounting plate (8). The support column (10) is fixedly installed on the bottom surface of the connection box (3). A threaded hole is provided above the support column (10).

6. A brushless DC motor controller for an air purifier according to claim 5, characterized in that: The supporting column (10) and the mounting plate (8) are connected by a mounting rod (9). The mounting rod (9) has a two-section structure. The upper end of the mounting rod (9) is a threaded rod, and the lower end of the mounting rod (9) is a smooth round rod structure.