Range hood power panel with split panel design based on function division

Abstract

The utility model discloses a range hood power supply board designed based on function division. The range hood power supply board comprises a fan control mainboard used for implementing a basic control function of a range hood and a configuration board used for implementing an auxiliary control function of range hood selection. The fan control main board and the configuration board are connected through a standard interface, and the standard interface comprises a pair of fasteners in threaded fit and a PCB connector. The fastener is made of a conductive material, and the fastener and the fastener are in threaded connection to serve as a fixing structural part between the fan control main board and the configuration board and a conductive part for transmitting strong current; the PCB connector is used for achieving weak current transmission, and a male head and a female head of the PCB connector are fixed to the fan control mainboard and the configuration board respectively. The utility model can reduce the model number of the power panel, reduce the enterprise cost, and shorten the product development cycle.

Description

Technical Field

[0001] This utility model relates to the field of range hoods, and in particular to a range hood power supply board with a modular design based on functional division. Background Technology

[0002] Modern range hood power boards offer two control methods: AC fixed-frequency motor control and variable-frequency motor control. In addition, range hoods also have multiple functions such as lighting, stove-range linkage, self-cleaning (electric heating cleaning and steam cleaning), flap, and air quality detection.

[0003] Due to cost considerations, variable frequency motor control power boards are available in multiple models, such as 300W, 400W, and 500W. Based on market demand, the basic control functions of range hoods (AC fan control / variable frequency fan control, lighting) and auxiliary function controls (range hood and stove linkage, electric heating cleaning / steam cleaning, flap hood, air quality detection, ambient lighting) will be arranged in various combinations, resulting in a wide variety of power board models with different hardware.

[0004] The increasing number of power board models not only increases product prices but also hinders suppliers' production and inventory management, and negatively impacts OEM manufacturers' inventory, production, and after-sales service. This utility model better implements enterprise standards, standardizes design, reduces the number of parts, and provides technical planning and standardization for the power board of the range hood's variable frequency fan. Utility Model Content

[0005] The purpose of this utility model is to improve the shortcomings of the existing technology and provide a range hood power supply board with a functional division design.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A range hood power supply board with a functional partitioning design is provided, including a fan control main board for implementing basic control functions of the range hood, and a configuration board for implementing optional auxiliary control functions of the range hood; the fan control main board and the configuration board are connected through a standard interface, which includes a pair of threaded fasteners and a PCB connector; the fasteners are made of conductive material, and the two are connected by threads as a fixing structure between the fan control main board and the configuration board and a conductive component for transmitting high voltage; the PCB connector is used to realize low voltage transmission, and the male and female ends of the PCB connector are fixed to the fan control main board and the configuration board respectively.

[0008] Furthermore, the fasteners include metal screws and metal nuts with internal threads.

[0009] Furthermore, the metal nut is a surface-mount nut, which is welded to the configuration board as a power input terminal; the fan control main board is provided with pad holes with the same spacing as the surface-mount nut on the configuration board, and the pad holes are respectively connected to the live wire and neutral wire on the fan control main board. The surface-mount nut on the configuration board and the pad holes on the fan control main board are fixed by screws.

[0010] Furthermore, the surface-mount nut is fixed to the bottom surface of the configuration plate, and the screw is inserted from below the pad hole and locked with the built-in thread of the surface-mount nut.

[0011] Furthermore, the fasteners are made of copper.

[0012] Furthermore, the main control board for the fan is equipped with at least a lighting control circuit, a switch communication circuit, a buzzer circuit, and a heating control circuit for the range hood's booster cleaning; the configuration board includes one or more of the following: a water pump control circuit for the range hood's steam cleaning, a flap control circuit, a range hood and stove linkage control circuit, and an ambient light control circuit.

[0013] Furthermore, the wind turbine control main board and configuration board each have at least two models, and the standard interface structure between each main board and configuration board is the same.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Reduced power supply board models: There are a total of 4 models of main power supply boards and 3 models of configuration boards, for a total of 7 models, which is a significant reduction in the number of materials compared to the original dozens of models. Fewer models allow for a larger purchase quantity per model, which is beneficial for OEMs. At the same time, economies of scale reduce procurement costs, warehousing costs, production costs, and after-sales costs.

[0016] 2. Facilitates research and development innovation and rapid product development: The development of auxiliary functions for range hoods only changes the configuration board, shortening the product development cycle and improving product reliability (because the main board remains unchanged).

[0017] 3. It meets the requirements for high-voltage input and reliable fixation of the configuration board, achieving low cost and easy disassembly and replacement. Attached Figure Description

[0018] Figure 1 A schematic diagram of the configuration board is provided;

[0019] Figure 2 A top view of the motherboard and configuration table is provided; and

[0020] Figure 3 A top view of the motherboard and configuration table is provided. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 the present application. That is, in some embodiments of the present application, these practical details are not necessary. In addition, for the sake of simplifying the drawings, some conventional structures and components will be shown in a simple schematic manner in the drawings.

[0022] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit this application. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying 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 in this application.

[0024] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0025] The power supply board is divided into a main board and a configuration board. The main board is further divided into two categories: variable frequency fan control main board and AC fan control main board. The variable frequency fan control main board is available in 300W, 400W, and 500W models based on the fan input power, while the AC fan control main board has only one model. Both the variable frequency and AC fan control main boards implement the basic control functions of the range hood. The main board includes lighting control circuits, switch communication circuits, buzzer circuits, heating control circuits for the range hood's booster cleaning function, two reserved AD ports, and an interface for the configuration board. The configuration board implements optional auxiliary control functions for the range hood. It includes one or more of the following circuits: water pump control circuit for the range hood's steam cleaning function, flap control circuit, range hood and stove linkage control circuit, and ambient lighting control circuit. The combination of these circuits is determined by the auxiliary functions required by the product. The configuration board is available in multiple models, such as: linkage + single flap, linkage + double flap + booster cleaning, etc. The motherboard and the configuration board are connected through a standard interface. The standard interface structure is the same for all motherboards and configuration boards, and different motherboards and configuration boards can be used in any combination.

[0026] One problem that needs to be solved using the method of this utility model is that the configuration board requires a 220V high-voltage input, needs to be securely fixed to the main board, and the implementation cost cannot be too high. To solve this problem, the standard interface includes a pair of threaded fasteners made of conductive material. The two fasteners are connected by threads, serving as a fixing structure between the fan control main board and the configuration board, and a conductive component for transmitting high-voltage electricity. Simultaneously, the standard interface includes a PCB connector for low-voltage transmission; the male and female connectors of the PCB connector are respectively fixed to the fan control main board and the configuration board.

[0027] The above scheme achieves the following: 1. Reduced power board models: There are a total of 4 models for the main power board and 3 models for the configuration board, for a total of 7 models, significantly reducing the number of materials compared to the original dozens of models. Fewer models allow for a larger purchase quantity per model, which is beneficial for OEMs. Simultaneously, economies of scale reduce procurement, warehousing, production, and after-sales costs. 2. Facilitates R&D and innovation, enabling rapid product development: The development of auxiliary functions for the range hood only requires changes to the configuration board, shortening the product development cycle and improving product reliability (because the main board remains unchanged). 3. Meets the requirements for high-voltage input and reliable fixation of the configuration board, achieving lower costs while facilitating disassembly and replacement.

[0028] Fasteners consist of metal screws and internally threaded metal nuts. Furthermore, the metal nuts are surface-mount nuts, fixed to the configuration board as a power input terminal, serving as both a structural component and a 220VAC conductive component. Surface-mount nuts are standard components that can be soldered onto the PCB (Printed Circuit Board), with internal threads for securing the structural component. Soldering the surface-mount nuts to the configuration board enhances the reliability of the electrical connection and structural stability between the two. For electrical transmission between the motherboard and the conductive component, considering the need for detachability and reliable connection, the motherboard has pad holes with the same spacing as the surface-mount nuts on the configuration board. These pad holes connect to the live and neutral power lines on the motherboard. The surface-mount nuts on the configuration board and the pad holes on the motherboard are secured with screws. This achieves a reliable mechanical connection for the configuration board, while also distributing the live and neutral wires from the motherboard to the configuration board for its use. Simultaneously, the PCB connectors on the motherboard and configuration board are engaged, allowing the logic circuits on the motherboard to control the circuits on the configuration board via the connector's control pins.

[0029] Furthermore, a surface-mount nut is fixed to the bottom of the configuration board, and a screw is inserted from below the pad hole and locked with the internal thread of the surface-mount nut. In daily use, the surface-mount nut is covered by the configuration board, and the screw head is covered by the motherboard, which provides top shell protection and improves the impact of dust accumulation on electrical transmission, thereby extending product life.

[0030] In this invention, the fasteners are made of copper metal, and the nuts are surface-mount copper nuts, which are convenient for soldering and achieve low power transmission loss at an acceptable cost.

[0031] Schematic Implementation Instructions

[0032] like Figure 1 As shown, 11 is the mainboard of the configuration board, 12 and 13 are surface-mount copper nuts, and 14 is a connector mounted on the configuration board. The connectors, copper nuts, and components are arranged on both sides of the PCB. One end of the copper nuts 12 and 13 and one end of the connector 14 are connected to the configuration board by soldering. The copper nuts have internal threads.

[0033] like Figure 2 As shown, 21 is the mainboard, 25 and 26 are the mounting pads for the mainboard, 22 is the configuration board, and 23 and 24 are the fixing screws. The AC power input socket is located on the mainboard. The live and neutral wires of the AC power are connected to pads 25 and 26 respectively via PCB traces. Fixing screws 23 and 24 are connected to the copper nuts on the configuration board through the pads. The live and neutral wires are connected to the configuration board via the pads and the copper nuts for use on the configuration board. Simultaneously, the female connector on the configuration board connects to the male connector on the mainboard for low-voltage control connections.

[0034] like Figure 3As shown, 31 is the plastic pad for the motherboard, 32 is the motherboard, 33 is the configuration board, 34 and 35 are the copper nuts for the configuration board, and 36 is the PCB connector. The configuration board is mounted on top of the motherboard, forming a two-layer structure.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A range hood power supply board with a modular design based on functional division, characterized in that: This includes a fan control mainboard for implementing the basic control functions of the range hood, and a configuration board for implementing optional auxiliary control functions of the range hood; The wind turbine control mainboard and the configuration board are connected via a standard interface, which includes a pair of threaded fasteners and a PCB connector. The fasteners are made of conductive material and are connected by threads to serve as a fixing structure between the wind turbine control mainboard and the configuration board, as well as a conductive component for transmitting high-voltage electricity. The PCB connector is used to realize low-voltage electricity transmission, and the male and female ends of the PCB connector are fixed to the wind turbine control mainboard and the configuration board, respectively.

2. The range hood power supply board according to claim 1, characterized in that: The fasteners include metal screws and metal nuts with internal threads.

3. The range hood power supply board according to claim 2, characterized in that: The metal nut is a surface-mount nut, which is welded to the configuration board as a power input terminal. The fan control main board has pad holes with the same spacing as the surface mount nuts on the configuration board. The pad holes are respectively connected to the live wire and neutral wire on the fan control main board. The surface mount nuts on the configuration board and the pad holes on the fan control main board are fixed by screws.

4. The range hood power supply board according to claim 3, characterized in that: The surface mount nut is fixed to the bottom surface of the configuration plate, and the screw passes through the pad hole from below and locks with the internal threads of the surface mount nut.

5. The range hood power supply board according to claim 1, characterized in that: The fastener is made of copper.

6. The range hood power supply board according to claim 1, characterized in that: The main control board for the fan is equipped with at least a lighting control circuit, a switch communication circuit, a buzzer circuit, and a heating control circuit for the range hood's booster cleaning function. The configuration board includes one or more of the following: a water pump control circuit for the range hood steam cleaning system, a flap control circuit, a range hood and stove linkage control circuit, and an ambient light control circuit.

7. The range hood power supply board according to claim 1, characterized in that: The fan control main board and configuration board each have at least two models, and the standard interface structure between each main board and configuration board is the same.

Images