Main control box and refrigerator

Abstract

The embodiment of the utility model provides a main control box and a refrigerator. The main control box comprises a box body, a main board fixing structure and a main control board, a groove is formed in the box body, the main board fixing structure is arranged in the groove, and the main board fixing structure is detachably connected with the box body; the main control board is arranged in the groove, and the main control board and the main board fixing structure are connected in a detachable connection mode. According to the main control box provided by the embodiment of the invention, the box body and the main board fixing structure are designed into two independent structures, so that the box body and the main board fixing structure can be prepared from different materials, and the main board fixing structure can be made of a thermoplastic flame-retardant material with relatively high price due to the need to have elasticity; and the box body can be made of a thermosetting flame-retardant material with a relatively low price, so that the overall manufacturing cost of the main control box is reduced, and the production cost of the refrigerator using the main control box is further reduced.

Description

Technical Field

[0001] The present application relates to the field of electrical appliance technology, and in particular to a main control box and a refrigerator. Background Art

[0002] Smart refrigerators are popular among users for their user-friendly interface and ease of operation, and their market share has been steadily increasing. The main control box is a key component for implementing smart control in refrigerators. Currently, the main control box in refrigerators integrates the mainboard mounting structure with the mainboard. Because the mainboard mounting structure requires a certain degree of flexibility, both the box body and the mainboard mounting structure are made of expensive PP flame-retardant material (flame-retardant polypropylene). This high price of PP flame-retardant material leads to high production costs for the main control box, and consequently, high production costs for refrigerators using this main control box. Utility Model Content

[0003] Based on this, an embodiment of the present application provides a main control box and a refrigerator.

[0004] In a first aspect, an embodiment of the present application provides a main control box, comprising:

[0005] A box body, wherein the box body is provided with a groove;

[0006] A mainboard fixing structure is disposed in the groove, and the mainboard fixing structure is connected to the box body in a detachable manner;

[0007] The main control board is arranged in the groove, and the main control board is connected to the mainboard fixing structure in a detachable manner.

[0008] In some embodiments, the mainboard fixing structure and the box body are connected by a snap connection; and / or,

[0009] The main control board is connected to the mainboard fixing structure by a snap connection; and / or,

[0010] The main control box further includes a box cover, which covers the opening of the groove of the box body and is connected to the box body.

[0011] In some embodiments, the mainboard fixing structure includes a body, a first plug-in portion, and a second plug-in portion, wherein the first plug-in portion and the second plug-in portion are respectively provided on opposite sides of the body and are both connected to the body;

[0012] The main control box further includes a first plug-in assembly, which includes a first plug-in connector and a second plug-in connector. The first plug-in connector and the second plug-in connector are both disposed in the groove and connected to the box body. The first plug-in connector is provided with a first plug-in slot, and the second plug-in connector is provided with a second plug-in slot.

[0013] The first plug-in portion is engaged with the first plug-in slot, and the second plug-in portion is engaged with the second plug-in slot.

[0014] In some embodiments, the mainboard fixing structure further includes a first clamping portion, the first clamping portion is connected to the main body, and a gap is maintained between the first clamping portion and the inner wall of the box body; the main control board has a top and a bottom end that are oppositely arranged, and the top end of the main control board is clamped in the gap between the first clamping portion and the box body; and / or,

[0015] The main control box further includes a supporting assembly, which is disposed in the groove and connected to the box body. The bottom end of the main control board is supported by the supporting assembly.

[0016] In some embodiments, the body is provided with a hollow portion, the inner edge of the hollow portion includes a first side edge and a second side edge that are oppositely arranged, wherein the second side edge is arranged between the first side edge and the box body, and the first clamping portion is connected to the first side edge; and / or,

[0017] The support assembly includes at least one first support member, the first support member includes a first support base and a first side plate connected to each other, the first support base is connected to the box body, the first side plate and the box body are spaced apart, and the bottom end of the main control board is clamped in the space between the first side plate and the box body; and / or,

[0018] The support assembly includes at least one second support member, and the second support member is arranged corresponding to the corner of the main control board; the second support member includes a connected second support seat and a second side plate, and the second support seat and the second side plate are both connected to the box body, and the corner of the bottom end of the main control board is clamped in the accommodating space surrounded by the second side plate, the second support seat and the box body.

[0019] In some embodiments, the main control box further includes a wire harness limiting assembly, and the wire harness limiting assembly includes a plurality of wire harness limiting parts, and the plurality of wire harness limiting parts are all arranged in the groove and are all connected to the box body.

[0020] In some embodiments, the wire harness limiting member includes a limiting portion, and the limiting portion is provided with a wire threading hole.

[0021] In some embodiments, the wiring harness limiter further includes a connecting member connected to the limiter portion, the connecting member including a connecting portion, a third plug-in portion, and a fourth plug-in portion, wherein the connecting portion is connected to the limiter portion, and the third plug-in portion and the fourth plug-in portion are respectively provided on opposite sides of the connecting portion and are both connected to the connecting portion;

[0022] The main control box further includes a second plug-in assembly, the second plug-in assembly includes a third plug-in connector and a fourth plug-in connector, the third plug-in connector and the fourth plug-in connector are both disposed in the groove and connected to the box body, the third plug-in connector is provided with a third plug-in slot, and the fourth plug-in connector is provided with a fourth plug-in slot;

[0023] The third plug-in portion is connected in a snap-fit manner to the third plug-in slot, and the fourth plug-in portion is connected in a snap-fit manner to the fourth plug-in slot.

[0024] In a second aspect, an embodiment of the present application provides a refrigerator comprising the main control box as described above.

[0025] In some embodiments, the refrigerator further includes a box shell, and the main control box is embedded in the box shell.

[0026] The main control box provided in the embodiment of the present application connects the mainboard fixing structure and the box body in a detachable connection manner, and connects the main control board and the mainboard fixing structure in a detachable connection manner, so that the box body and the mainboard fixing structure become two independent structures. At this time, the box body and the mainboard fixing structure can be prepared using different materials respectively. Since the mainboard fixing structure needs to have elasticity, a relatively high-priced thermoplastic flame-retardant material can be used, while the box body can use a relatively low-priced thermosetting flame-retardant material, thereby reducing the overall production cost of the main control box, and further reducing the production cost of the refrigerator using the main control box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of the main control box provided in an embodiment of the present application.

[0029] Figure 2 This is a schematic diagram of the exploded view of the main control box provided in an embodiment of the present application.

[0030] Figure 3 for Figure 2 Schematic diagram of the enlarged area A in the middle.

[0031] Figure 4 for Figure 2 Schematic diagram of the enlarged area B.

[0032] Figure 5 for Figure 2 Schematic diagram of the enlarged area C in the middle.

[0033] Figure 6 This is a schematic diagram of the first partial structure of the main control box provided in an embodiment of the present application.

[0034] Figure 7 This is a schematic diagram of the second partial structure of the main control box provided in an embodiment of the present application.

[0035] Figure 8 A structural schematic diagram of the mainboard fixing structure provided in an embodiment of the present application from a first perspective.

[0036] Figure 9 This is a structural schematic diagram of the second perspective of the mainboard fixing structure provided in an embodiment of the present application.

[0037] Figure 10 A schematic diagram of the three-dimensional structure of the wire harness limiter provided in an embodiment of the present application.

[0038] Figure 11 A schematic structural diagram of a refrigerator provided in an embodiment of the present application.

[0039] Component Symbol Description:

[0040] 100, refrigerator; 300, housing; 200, main control box; 10, box body; 11, groove; 20, mainboard fixing structure; 21, main body; 211, hollow portion; 201, first side; 202, second side; 22, first clamping portion; 23, first plug-in portion; 24, second plug-in portion; 30, first plug-in assembly; 31, first plug-in component; 311, first plug-in slot; 32, second plug-in component; 322, second plug-in slot; 41, first support member; 411, first support base; 412, First side panel; 42, second support member; 421, second support seat; 422, second side panel; 51, wiring harness limiter; 511, limiter; 501, threading hole; 502, opening; 512, connector; 503, connector; 504, third plug-in portion; 505, fourth plug-in portion; 60, second plug-in assembly; 63, third connector; 633, third plug-in slot; 64, fourth connector; 644, fourth plug-in slot; 70, main control board; 71, top end; 72, bottom end; 80, box cover. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0042] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0044] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0046] See also Figure 1 and Figure 2 An embodiment of the present application provides a main control box 200, including a box body 10, a mainboard fixing structure 20 and a main control board 70. The box body 10 is provided with a groove 11, and the mainboard fixing structure 20 is arranged in the groove 11. The mainboard fixing structure 20 and the box body 10 are connected in a detachable manner; the main control board 70 is arranged in the groove 11, and the main control board 70 and the mainboard fixing structure 20 are connected in a detachable manner.

[0047] As you can understand, the main control board (MCB) is a crucial component of the refrigerator, responsible for multiple tasks, including refrigeration control, power supply, protection, display, and fault detection. The MCB typically includes components such as a very large-scale integrated circuit (VLSI) controller chip, a refrigerator compartment control board, a display board, and a power supply board. Specifically, the main functions of the refrigerator MCB include the following: 1. Refrigeration Control: The MCB is the control center of the entire refrigerator's refrigeration system. By monitoring temperature, humidity, and sensor signals, it adjusts the compressor's operation and controls the cooling effect. When the refrigerator needs to cool or stop, the MCB starts or stops the refrigeration system based on the temperature setting and sensor signal feedback. 2. Power Supply: The MCB handles the input and output of power, controlling the power supply's on / off status to ensure proper operation. In the event of a power failure or low voltage, the MCB automatically stops refrigeration to prevent damage to the motor. 3. Protection: The MCB also provides protection functions, monitoring the refrigeration system's operating status and promptly stopping operation if an anomaly is detected, preventing damage to the refrigerator. For example, if the temperature inside the refrigerator is too high or too low, the main control board will sound an alarm or stop cooling to protect the refrigeration system and food safety. 4. Display: The refrigerator main control board typically features an LED or LCD display that displays information such as internal temperature, humidity, and remaining battery life, allowing users to easily understand the refrigerator's operating status. 5. Fault Detection: The main control board can also detect various refrigerator faults, such as sensor failures and refrigeration system failures. When a fault occurs, the main control board will send a fault code to notify the user to perform repairs or replace parts.

[0048] It can be understood that the mainboard fixing structure 20 is a component used to fix and install the main control board 70. When the mainboard fixing structure 20 is connected to the main control board 70 by means of a connection method such as a snap connection, it means that there is an interaction force between the mainboard fixing structure 20 and the main control board 70 in the clamped state. Therefore, the mainboard fixing structure 20 needs to have a certain elasticity to extend its service life. At this time, the mainboard fixing structure 20 can adopt a thermoplastic flame retardant material with a certain elasticity, such as PP flame retardant material (flame retardant polypropylene); the box body 10 can adopt a thermosetting flame retardant material with high hardness but low price.

[0049] The main control box 200 provided in the embodiment of the present application connects the mainboard fixing structure 20 and the box body 10 in a detachable connection manner, and connects the main control board 70 and the mainboard fixing structure 20 in a detachable connection manner, so that the box body 10 and the mainboard fixing structure 20 become two independent structures. At this time, the box body 10 and the mainboard fixing structure 20 can be prepared using different materials respectively. Since the mainboard fixing structure 20 needs to have elasticity, a relatively high-priced thermoplastic flame-retardant material can be used, while the box body 10 can use a relatively low-priced thermosetting flame-retardant material, thereby reducing the overall production cost of the main control box 200, and further reducing the production cost of the refrigerator 100 using the main control box 200.

[0050] Exemplarily, the mainboard fixing structure 20 is connected to the box body 10 by a snap-fit connection.

[0051] Exemplarily, the main control board 70 is connected to the mainboard fixing structure 20 by a snap-fit connection.

[0052] See also Figure 2 The main control box 200 further includes a box cover 80 , which covers the opening of the groove 11 of the box body 10 and is connected to the box body 10 .

[0053] Exemplarily, the box cover 80 is connected to the box body 10 by snap-fitting.

[0054] See also Figure 8 and Figure 9 The mainboard fixing structure 20 includes a main body 21, a first plug-in portion 23 and a second plug-in portion 24. The first plug-in portion 23 and the second plug-in portion 24 are respectively arranged on opposite sides of the main body 21 and are both connected to the main body 21.

[0055] See also Figure 6 and Figure 7The main control box 200 also includes a first plug-in component 30, which includes a first plug-in connector 31 and a second plug-in connector 32. The first plug-in connector 31 and the second plug-in connector 32 are both arranged in the groove 11 and are both connected to the box body 10. The first plug-in connector 31 is provided with a first plug-in slot 311, and the second plug-in connector 32 is provided with a second plug-in slot 322.

[0056] See also Figure 6 、 Figure 7 and Figure 8 The first plug-in portion 23 is engaged with the first plug-in slot 311 , and the second plug-in portion 24 is engaged with the second plug-in slot 322 .

[0057] Exemplarily, the first plug-in assembly 30 and the box body 10 are an integrated structure.

[0058] See also Figure 2 and Figure 6 The number of the motherboard fixing structures 20 can be multiple, the number of the plug-in components can be multiple, and the multiple motherboard fixing structures 20 are respectively engaged with the multiple plug-in components.

[0059] It should be noted that, in the embodiments of the present application, a plurality refers to two or more, such as three, four, five, six, etc.

[0060] See also Figure 2 and Figure 6 In some embodiments, the number of the motherboard fixing structures 20 can be two, the number of the first plug-in components 30 can be two, and the two motherboard fixing structures 20 are respectively engaged with the two first plug-in components 30.

[0061] See also Figure 2 、 Figure 3 、 Figure 8 and Figure 9 The mainboard fixing structure 20 also includes a first clamping portion 22, which is connected to the main body 21, and a gap is maintained between the first clamping portion 22 and the inner wall of the box body 10; the main control board 70 has a top end 71 and a bottom end 72 that are relatively arranged, and the top end 71 of the main control board 70 is clamped in the gap space between the first clamping portion 22 and the box body 10.

[0062] See also Figure 8 The main body 21 is provided with a hollow portion 211, and the inner edge of the hollow portion 211 includes a first side 201 and a second side 202 arranged opposite to each other, wherein the second side 202 is arranged between the first side 201 and the box body 10, and the first clamping portion 22 is connected to the first side 201.

[0063] It is understandable that by providing the hollow portion 211 , an operator can see the position of the main control board 70 and whether the main control board 70 is properly installed through the hollow portion 211 when fixing and installing the main control board 70 .

[0064] See also Figure 2 、 Figure 4 and Figure 5 The main control box 200 further includes a supporting assembly, which is disposed in the groove 11 and connected to the box body 10 , and the bottom end 72 of the main control board 70 is supported by the supporting assembly.

[0065] See also Figure 2 , the support assembly includes at least one first support member 41. In some embodiments, the number of the first support members 41 is two or more.

[0066] See also Figure 4 The first support member 41 includes a first support seat 411 and a first side plate 412 connected to each other. The first support seat 411 is connected to the box body 10. The first side plate 412 and the box body 10 are spaced apart. The bottom end 72 of the main control board 70 is clamped in the space between the first side plate 412 and the box body 10.

[0067] See also Figure 2 The support assembly includes at least one second support member 42, and the second support member 42 is set corresponding to the corner of the main control board 70. In some embodiments, the number of the second support member 42 is one, and one second support member 42 is set corresponding to a corner of the bottom end 72 of the main control board 70.

[0068] In some other embodiments, the number of the second support members 42 is two, and the two second support members 42 are respectively provided corresponding to the two corners of the bottom end 72 of the main control board 70 .

[0069] See also Figure 5 The second support member 42 includes a second support seat 421 and a second side plate 422 connected to each other. The second support seat 421 and the second side plate 422 are both connected to the box body 10. The corners of the bottom end 72 of the main control board 70 are clamped in the accommodating space surrounded by the second side plate 422, the second support seat 421 and the box body 10.

[0070] See also Figure 2 and Figure 6 The main control box 200 also includes a wire harness limiting assembly, which includes a plurality of wire harness limiting members 51. The plurality of wire harness limiting members 51 are all arranged in the groove 11 and are all connected to the box body 10.

[0071] It can be understood that the function of the wire harness limiter 51 is to constrain the wire harness in the electric control box so that it is routed along a set direction, so that the wire harness remains in a neat state, thereby facilitating inspection and maintenance.

[0072] See also Figure 2 and Figure 6 For example, a plurality of the harness stoppers 51 may be arranged at intervals around the periphery of the main control board 70 .

[0073] See also Figure 10 The wire harness stopper 51 includes a stopper portion 511, and a wire threading hole 501 is provided on the stopper portion 511. It can be understood that the wire threading hole 501 is used to gather the wire harness to prevent the wires in the wire harness from being dispersed.

[0074] See also Figure 10 The limiting portion 511 is provided with an opening 502 , and the opening 502 is communicated with the threading hole 501 to allow the wiring harness to enter and exit the threading hole 501 .

[0075] See also Figure 10 , illustratively, the limiting portion 511 can be bent or arc-shaped.

[0076] See also Figure 10 The wiring harness limiter 51 also includes a connector 512 connected to the limiter 511, and the connector 512 includes a connector 503, a third plug-in portion 504 and a fourth plug-in portion 505, wherein the connector 503 is connected to the limiter 511, and the third plug-in portion 504 and the fourth plug-in portion 505 are respectively arranged on opposite sides of the connector 503 and are both connected to the connector 503.

[0077] See also Figure 6 and Figure 7 The main control box 200 also includes a second plug-in component 60, which includes a third plug-in connector 63 and a fourth plug-in connector 64. The third plug-in connector 63 and the fourth plug-in connector 64 are both arranged in the groove 11 and are both connected to the box body 10. The third plug-in connector 63 is provided with a third plug-in slot 633, and the fourth plug-in connector 64 is provided with a fourth plug-in slot 644.

[0078] See also Figure 6 、 Figure 7 and Figure 10 The third plug-in portion 504 is engaged with the third plug-in slot 633 , and the fourth plug-in portion 505 is engaged with the fourth plug-in slot 644 .

[0079] Exemplarily, the second plug-in assembly 60 and the box body 10 are an integral structure.

[0080] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of the box body of the present application embodiment. The inner wall of the box body 10 is connected to the first plug-in component 30 and the second plug-in component 60; please refer to Figure 6 , Figure 6 This is a schematic diagram of the box body 10, the motherboard fixing structure 20, and the wire harness limiting member 51 of the embodiment of the present application, wherein the motherboard fixing structure 20 and the first plug-in component 30 are connected by a snap-fit method, and the wire harness limiting member 51 and the second plug-in component 60 are connected by a snap-fit method; please refer to Figure 2 , Figure 2 This is a schematic diagram after the main control board 70 is installed in the box body 10, wherein the top end 71 of the main control board 70 is clamped in the gap between the first clamping portion 22 and the box body 10, and the bottom end 72 of the main control board 70 is supported by the support assembly.

[0081] See also Figure 11 , an embodiment of the present application further provides a refrigerator 100, comprising the main control box 200 as described above.

[0082] See also Figure 11 The refrigerator 100 further includes a box shell 300 , and the main control box 200 is embedded in the box shell 300 .

[0083] The above describes in detail the main control box and refrigerator provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the present application. Furthermore, those skilled in the art will appreciate that variations in the specific implementation methods and scope of application may occur based on the concepts of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. A main control box, characterized in that: include: A box body, wherein the box body is provided with a groove; A mainboard fixing structure is disposed in the groove, and the mainboard fixing structure is connected to the box body in a detachable manner; The main control board is arranged in the groove, and the main control board is connected to the mainboard fixing structure in a detachable manner.

2. The main control box according to claim 1, characterized in that: The mainboard fixing structure is connected to the box body by a snap-fit connection; and / or, The main control board is connected to the mainboard fixing structure by a snap connection; and / or, The main control box further includes a box cover, which covers the opening of the groove of the box body and is connected to the box body.

3. The main control box according to claim 2, characterized in that: The mainboard fixing structure includes a main body, a first plug-in portion, and a second plug-in portion, wherein the first plug-in portion and the second plug-in portion are respectively provided on opposite sides of the main body and are both connected to the main body; The main control box further includes a first plug-in assembly, which includes a first plug-in connector and a second plug-in connector. The first plug-in connector and the second plug-in connector are both disposed in the groove and connected to the box body. The first plug-in connector is provided with a first plug-in slot, and the second plug-in connector is provided with a second plug-in slot. The first plug-in portion is engaged with the first plug-in slot, and the second plug-in portion is engaged with the second plug-in slot.

4. The main control box according to claim 3, characterized in that: The mainboard fixing structure further includes a first clamping portion, the first clamping portion is connected to the main body, and a gap is maintained between the first clamping portion and the inner wall of the box body; the main control board has a top end and a bottom end that are oppositely arranged, and the top end of the main control board is clamped in the gap between the first clamping portion and the box body; and / or, The main control box further includes a supporting assembly, which is disposed in the groove and connected to the box body. The bottom end of the main control board is supported by the supporting assembly.

5. The main control box according to claim 4, characterized in that: The body is provided with a hollow portion, the inner edge of the hollow portion includes a first side edge and a second side edge that are oppositely arranged, wherein the second side edge is arranged between the first side edge and the box body, and the first clamping portion is connected to the first side edge; and / or, The support assembly includes at least one first support member, the first support member includes a first support base and a first side plate connected to each other, the first support base is connected to the box body, the first side plate and the box body are spaced apart, and the bottom end of the main control board is clamped in the space between the first side plate and the box body; and / or, The support assembly includes at least one second support member, and the second support member is arranged corresponding to the corner of the main control board; the second support member includes a connected second support seat and a second side plate, and the second support seat and the second side plate are both connected to the box body, and the corner of the bottom end of the main control board is clamped in the accommodating space surrounded by the second side plate, the second support seat and the box body.

6. The main control box according to claim 1, characterized in that: The main control box further includes a wire harness limiting assembly, which includes a plurality of wire harness limiting parts. The plurality of wire harness limiting parts are all arranged in the groove and are all connected to the box body.

7. The main control box according to claim 6, characterized in that: The wire harness limiting component comprises a limiting portion, and a wire threading hole is provided on the limiting portion.

8. The main control box according to claim 7, characterized in that: The wiring harness limiter also includes a connecting member connected to the limiter portion, the connecting member including a connecting portion, a third plug-in portion, and a fourth plug-in portion, wherein the connecting portion is connected to the limiter portion, and the third plug-in portion and the fourth plug-in portion are respectively provided on opposite sides of the connecting portion and are both connected to the connecting portion; The main control box further includes a second plug-in assembly, the second plug-in assembly includes a third plug-in connector and a fourth plug-in connector, the third plug-in connector and the fourth plug-in connector are both disposed in the groove and connected to the box body, the third plug-in connector is provided with a third plug-in slot, and the fourth plug-in connector is provided with a fourth plug-in slot; The third plug-in portion is connected in a snap-fit manner to the third plug-in slot, and the fourth plug-in portion is connected in a snap-fit manner to the fourth plug-in slot.

9. A refrigerator, characterized in that: The invention comprises the main control box according to any one of claims 1 to 8.

10. The refrigerator according to claim 9, characterized in that The refrigerator further comprises a box shell, and the main control box is embedded in the box shell.

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