Detachable ice maker control system with double circuit boards

By combining a detachable dual circuit board design with heat-conducting plates and heat sinks, the problems of large circuit board size and uneven heat dissipation are solved, resulting in a compact and efficient ice maker control system.

CN224139206UActive Publication Date: 2026-04-17JUNBO (NINGBO) DIGITAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JUNBO (NINGBO) DIGITAL TECHNOLOGY CO LTD
Filing Date
2025-09-25
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing ice maker circuit board design is large, which makes structural design difficult and assembly inconvenient. In addition, the concentrated heat leads to uneven heat dissipation, which affects the service life.

Method used

The system adopts a detachable dual circuit board design. The main control board and the power board are fixed by detachable connectors and electrically connected by flexible connectors. Heat-conducting sheets and heat sinks are placed between the two to increase the heat conduction area and uniformity.

Benefits of technology

The circuit board was designed to be separate, which reduced the size and assembly difficulty, while improving heat dissipation and extending the life of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a detachable double-circuit board ice maker control system which comprises a main control board and a power board, three detachable connecting pieces are arranged between the main control board and the power board and used for fixing and supporting, and a flexible connecting piece is arranged between the main control board and the power board and used for electrical connection. The detachable connecting piece comprises a first connecting angle plate, a fastening bolt and a second connecting angle plate, and the first connecting angle plate is fixedly installed on the main control board. According to the utility model, through the double-layer stacking design of the main control board and the power supply board, the heat conducting sheet is arranged between the main control board and the power supply board, so that the heat conduction area is increased, the heat conduction uniformity is better, the heat dissipation block is utilized to increase heat dissipation, and the detachable connecting piece and the flexible connecting piece are utilized to realize detachability, so that the separated double-layer design of the power supply electric control is realized; and the size occupation and the design and assembly difficulty are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of ice maker technology, and more specifically, to a detachable dual-circuit board ice maker control system. Background Technology

[0002] The circuit boards used in ice making primarily function as power supply and control circuits. Power supply mainly refers to converting 220V AC power into low-voltage DC power to power low-voltage electrical equipment such as water pumps and fans. Control refers to using a microcontroller (MCU) to control various peripheral devices to operate according to user needs. Manufacturers design corresponding circuits based on these functions and manufacture printed circuit boards. These printed circuit boards are then soldered with various electronic components, including but not limited to resistors, capacitors, inductors, and integrated circuits (ICs). Finally, these components, combined with peripherals and the overall structure, constitute a complete product.

[0003] Currently, the integrated circuit board designs commonly used in such products on the market are quite large, which to some extent leads to difficulties in product structure design and assembly. At the same time, when some functions (such as power supply or control) are changed later, it affects other parts. In addition, the heat of the integrated circuit board is concentrated and uneven heat dissipation affects its service life. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a detachable dual-circuit board ice maker control system to solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution;

[0006] A detachable dual-circuit board ice maker control system, including a main control board and a power supply board;

[0007] Three detachable connectors are provided between the main control board and the power board for fixing and support;

[0008] A flexible connector is provided between the main control board and the power supply board for electrical connection;

[0009] The detachable connector includes a first connecting angle plate, a fastening bolt, and a second connecting angle plate. The first connecting angle plate is fixedly installed on the main control board, and the second connecting angle plate is fixedly installed on the power board. The fastening bolt passes downward and connects and locks the first connecting angle plate and the second connecting angle plate.

[0010] As a further description of the above technical solution: the flexible connector includes two plugs and a flexible cable strip, the two ends of the flexible cable strip are respectively connected and fixed to the two plugs, and the two plugs are respectively plugged into the interface terminals on the main control board and the power board.

[0011] As a further description of the above technical solution: the main control board is provided with equidistant busbars, which are used to supply power to high-power devices such as compressors and motors by corresponding to the live and neutral wires, and are used in conjunction with solid-state relays for control.

[0012] As a further description of the above technical solution: the top of the second connecting angle plate is provided with an internal threaded cylinder, the top of the internal threaded cylinder is in contact with the main control plate, and the bottom end of the fastening bolt is threadedly connected to the inside of the internal threaded cylinder.

[0013] As a further description of the above technical solution: the power board is provided with a wiring terminal, which uses a 6.3mm insert to introduce external power, and uses the KP321SG circuit design to step it down to 24V and 12V DC power.

[0014] As a further description of the above technical solution: heat-conducting sheets are fixedly connected to the opposite sides of the main control board and the power board, and heat dissipation blocks 7 are arranged at equal distances between the two sides of the heat-conducting sheets.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] (1) This solution achieves the advantages of separating the power supply and control into two layers by using a dual-layer design for the main power supply and using detachable connectors and soft connectors to make it detachable, thereby reducing the volume and assembly difficulty.

[0017] (2) This solution uses a double-layer stacked design of the main control board and the power board, and places the heat conduction sheet between the two to increase the heat conduction area and improve the heat conduction uniformity. It also uses heat sink to increase heat dissipation, thus achieving the advantages of increasing the heat conduction area, reducing the area occupied by the heat conduction structure, and improving the heat dissipation effect. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This is a partial three-dimensional disassembled structural diagram of the present invention;

[0021] Figure 4 This is a frontal cross-sectional view of the present invention.

[0022] Explanation of the labels in the diagram:

[0023] 1. Main control board; 2. Power board; 21. Wiring terminal; 3. Detachable connector; 31. First connecting angle plate; 32. Fastening bolt; 33. Second connecting angle plate; 331. Internal threaded cylinder; 4. Flexible connector; 41. Plug; 42. Flexible cable strip; 5. Heat-conducting plate; 6. Socket; 7. Heat sink. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] In view of the current situation where the integrated circuit board design of such products commonly used in the market is relatively large, which to some extent leads to difficulties in product structure design and assembly inconvenience, the following embodiment is proposed:

[0026] Please see Figure 1 and Figure 3 In this embodiment, the detachable dual-circuit board ice maker control system includes a main control board 1 and a power supply board 2.

[0027] Three detachable connectors 3 are provided between the main control board 1 and the power board 2 for fixing and support;

[0028] A flexible connector 4 is provided between the main control board 1 and the power supply board 2 for electrical connection.

[0029] The detachable connector 3 includes a first connecting angle plate 31, a fastening bolt 32, and a second connecting angle plate 33. The first connecting angle plate 31 is fixedly installed on the main control board 1, and the second connecting angle plate 33 is fixedly installed on the power board 2. The fastening bolt 32 passes downward and connects and locks the first connecting angle plate 31 and the second connecting angle plate 33.

[0030] The flexible connector 4 includes two plugs 41 and a flexible cable strip 42. The two ends of the flexible cable strip 42 are respectively connected and fixed to the two plugs 41. The two plugs 41 are respectively plugged into the interface terminals on the main control board 1 and the power board 2.

[0031] The main control board 1 has equidistantly arranged busbars 6, which are used to supply power to high-power devices such as compressors and motors, and are used in conjunction with solid-state relays for control.

[0032] The top of the second connecting angle plate 33 is provided with an internal threaded cylinder 331. The top of the internal threaded cylinder 331 contacts the main control plate 1, and the bottom end of the fastening bolt 32 is threadedly connected to the inside of the internal threaded cylinder 331.

[0033] The power board 2 is equipped with a terminal 21, which uses a 6.3mm insert to introduce external power. The power is stepped down to 24V and 12V DC power through the KP321SG circuit design.

[0034] In this embodiment, the main control board 1 and the power board 2 are connected by fastening bolts 32 in conjunction with the first connecting angle plate 31 and the second connecting angle plate 33, thus separating the main control board 1 and the power board 2. Then, a flexible connector 4 is used to make a detachable electrical connection between the main control board 1 and the power board 2. The main control board 1 uses a 6.3mm plug-in to introduce external power through the terminal 21, and the KP321SG circuit design steps it down to 24V and 12V DC power supply, so as to flexibly adjust the output voltage according to the actual use needs, which has better adaptability. Furthermore, the busbar 6 is used to supply power to high-power devices such as compressors and motors by corresponding to the live and neutral wires, and is controlled by solid-state relays. This achieves the advantages of separating the power supply and electrical control into two layers, reducing the volume and design and assembly difficulty.

[0035] Considering the issue of concentrated heat and uneven heat dissipation affecting the lifespan of integrated circuit boards, a second embodiment is proposed:

[0036] Please see Figure 2 and Figure 4 Among them, heat-conducting plates 5 are attached and fixedly connected to the opposite side of the main control board 1 and the power board 2, and heat dissipation blocks 7 are arranged at equal distances between the two sides of the heat-conducting plates 5.

[0037] In this embodiment, the heat-conducting sheet 5 is placed between the main control board 1 and the power board 2 through a double-layer stacked design, which increases the heat dissipation area and improves the heat conduction uniformity. The heat sink 7 is used to increase heat dissipation, thereby achieving the advantages of increasing the heat conduction area, reducing the area occupied by the heat conduction structure, and improving the heat dissipation effect.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A detachable dual circuit board ice maker control system, characterized by: Includes a main control board (1) and a power supply board (2); Three detachable connectors (3) are provided between the main control board (1) and the power board (2) for fixing and supporting; A flexible connector (4) is provided between the main control board (1) and the power supply board (2) for electrical connection; The detachable connector (3) includes a first connecting angle plate (31), a fastening bolt (32), and a second connecting angle plate (33). The first connecting angle plate (31) is fixedly installed on the main control board (1), and the second connecting angle plate (33) is fixedly installed on the power board (2). The fastening bolt (32) passes downward and connects and locks the first connecting angle plate (31) and the second connecting angle plate (33).

2. The detachable dual circuit board ice maker control system of claim 1, wherein: The flexible connector (4) includes two plugs (41) and a flexible cable strip (42). The two ends of the flexible cable strip (42) are respectively connected and fixed to the two plugs (41). The two plugs (41) are respectively plugged into the interface terminals on the main control board (1) and the power board (2).

3. The detachable dual circuit board ice maker control system of claim 1, wherein: The main control board (1) is provided with equidistantly arranged busbars (6), which are used to supply power to high-power devices such as compressors and motors, and are used in conjunction with solid-state relays for control.

4. The detachable dual circuit board ice maker control system of claim 1, wherein: The top of the second connecting angle plate (33) is provided with an internal threaded cylinder (331), the top of the internal threaded cylinder (331) is in contact with the main control plate (1), and the bottom end of the fastening bolt (32) is threaded to the inside of the internal threaded cylinder (331).

5. The detachable dual circuit board ice maker control system of claim 1, wherein: The power board (2) is provided with a terminal (21). The terminal (21) uses a 6.3mm insert to introduce external power, which is stepped down to 24V and 12V DC power through the KP321SG circuit design.

6. The detachable dual circuit board ice maker control system of claim 1, wherein: The main control board (1) and the power board (2) are both fixedly connected to each other with heat-conducting sheets (5), and heat dissipation blocks (7) are arranged at equal distances between the two sides of the heat-conducting sheets (5).