Mounting structure and method for refrigerator main control board

Abstract

The invention relates to the technical field of main control panels, and particularly discloses a mounting structure and method for a refrigerator main control panel, the mounting structure comprises a refrigerator and a mounting plate, the top of the back of the refrigerator is fixedly provided with a mounting bottom plate through bolts, one side of the mounting bottom plate is provided with a mounting groove, and one side of the mounting groove is rotatably connected with a first rotating plate; two coaxial second rotating plates are rotationally connected to the other side of the mounting groove, a mounting plate is rotationally connected to the tail ends of the first rotating plate and the second rotating plates, a movable mechanism is arranged on the side, close to the mounting bottom plate, of the mounting plate, locking mechanisms are arranged on the two side walls of the mounting groove, and a rail groove is formed in the side, away from the mounting bottom plate, of the mounting plate; four sets of positioning mechanisms are slidably connected to the periphery of the rail groove. The main control board is mounted through the mounting plate which can be movably unfolded, so that the mounting plate can extend out of a rear bin of the refrigerator, damage to a refrigerator and a pipeline due to the fact that a tool is used for disassembling screws and the like in a narrow space can be prevented, and operation can be more convenient after the main control board is mounted.

Description

Technical Field

[0001] The present invention relates to the technical field of main control boards, and particularly relates to an installation structure and method for a main control board of a refrigerator. Background Art

[0002] The temperature control of a refrigerator requires the use of a main control board. Generally, for aesthetic reasons, the main control board is installed on the back of the refrigerator and fixed by screws.

[0003] However, for some small refrigerators, the space on the back is limited. The main control board is often installed in the gap of the cooler. Align the installation holes of the main control board with the reserved holes of the refrigerator, and then lock the screws into the holes. During this process, it is also necessary to hold the main control board steady to prevent deviation. In this case, when using power tools to install the main control board, it is easy to collide and damage the cooler or pipelines. When using manual tools, it is inconvenient due to the limited space and inability to cooperate. Moreover, it will be very troublesome to repair once it is fixedly installed. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and propose an installation structure for a main control board of a refrigerator.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An installation structure for a main control board of a refrigerator, including a refrigerator and an installation board. The top of the back of the refrigerator is fixedly installed with an installation bottom plate through bolts. One side of the installation bottom plate is provided with an installation groove. One side of the installation groove is rotatably connected with a first rotating plate, and the other side of the installation groove is rotatably connected with two coaxial second rotating plates. The ends of the first rotating plate and the second rotating plates are rotatably connected with the installation board. One side of the installation board close to the installation bottom plate is provided with a movable mechanism including a fixed strip. The two side walls of the installation groove are provided with a locking mechanism including a clamping block and a connecting column. The side of the installation board away from the installation bottom plate is provided with a track groove, and four groups of positioning mechanisms including a positioning block and a rotating block are slidably connected around the track groove;

[0007] It further includes a main control board. Fixing holes are provided around the main control board, and a pin and a control chip are installed on one side of the main control board;

[0008] Four fixed strips are fixedly connected to one side of the installation board. The two upper and lower fixed strips are symmetrical to each other, and the two middle fixed strips are symmetrical to each other. Sliding grooves are provided on the fixed strips. The distance between the ends of each sliding groove close to the two side walls of the installation board is greater than the distance between the rotation shafts of the first rotating plate and the second rotating plates on the installation bottom plate. The ends of the first rotating plate and the second rotating plates are slidably connected to the sliding grooves through sliders;

[0009] On both sides of the installation groove, vertical grooves are symmetrically opened. A movable rod is slidably connected in the vertical groove. At the top and bottom of one side of the movable rod, a clamping block that penetrates into the installation groove on one side is rotatably connected. In the middle of the other side of the movable rod, a connecting column that penetrates out of the side wall of the installation bottom plate is fixedly connected.

[0010] Four positioning blocks are slidably connected around the track groove. A rotating block is rotatably connected to one side of the positioning block. The diameters of the rotating block and the positioning block are adapted to the fixing holes.

[0011] Preferably, a rear cover is fixedly installed on the back of the refrigerator. An inspection opening is opened at the top of the rear cover. The inspection opening corresponds to the position of the installation plate. A refrigerator is fixedly installed with a refrigerator and a supporting pipeline on the back.

[0012] Preferably, the first rotating plate and the two second rotating plates are arranged in a staggered manner. A groove is opened on the side wall of the installation groove. A torsion spring is arranged on the rotating shaft of the first rotating plate and the second rotating plate in the installation groove.

[0013] Preferably, handles are fixedly connected to both sides of the installation plate. A baffle is slidably connected to the top of the installation plate through a strip-shaped through groove. Two steel wires are fixedly connected between the side wall of the baffle and the installation groove. The sum of the length of the steel wire and the width of the baffle is equal to the distance between the outer wall of the installation plate and the side wall of the installation groove.

[0014] Preferably, the first rotating plate is slidably connected in a sliding groove opened between the opposite surfaces of two fixing strips in the middle. The two second rotating plates are respectively slidably connected in sliding grooves opened between the opposite surfaces of two fixing strips at the top and bottom.

[0015] Preferably, the diameter of the connecting column outside the installation bottom plate is larger than the diameter inside the installation bottom plate. A spring is sleeved on the side of the connecting column close to the movable rod. One end of the spring is fixedly connected to the outer wall of the installation bottom plate. The other end of the spring is fixedly connected to the side wall of the large-diameter end of the connecting column. A protective box is arranged outside the spring.

[0016] Preferably, four card slots are symmetrically opened on both side walls of the installation plate. The position and shape of each card slot respectively correspond to each clamping block.

[0017] Preferably, a magnet is installed on the contact surface between the positioning block and the track groove. A central movable groove is opened in the middle of the positioning block. Two arc-shaped grooves are symmetrically opened at the top and bottom of the central movable groove. Two positioning rods that are rotatably connected to the top and bottom of one side of the rotating block and slidably connected in the central movable groove are provided. A control block that is slidably connected in the arc-shaped groove is fixedly arranged on one side of the positioning rod.

[0018] A method for an installation structure of a refrigerator main control board is as follows:

[0019] Step 1: Unfold the mounting plate. The mounting base plate has been fixed to the back of the refrigerator at the beginning of refrigerator assembly. By pressing the connecting columns with both hands to overcome the reaction force of the spring, the movable rod can be pushed to slide along the vertical groove, driving the block to rotate, so that the block disengages from the card slot. At this time, the reaction force of the torsion spring can push the first rotating plate and the second rotating plate to rotate and cooperate with the handle to unfold the mounting plate. When the first rotating plate and the second rotating plate unfold and the ends slide to one end of the sliding grooves on both sides of the mounting plate, and the mounting plate is in a fully unfolded state after moving away from the mounting slot, both the first rotating plate or the second rotating plate form an obtuse angle with both sides of the mounting plate. During the unfolding process of the mounting plate, the steel wire rope pulls the baffle, so that the baffle slides along the strip-shaped through groove to between the mounting plate and the mounting base plate;

[0020] Step 2: Install the main control board. Manually move the positioning blocks in the track groove to facilitate the installation of main control boards of different specifications. After aligning the positions of the four positioning blocks with the positions of the fixing holes, the magnet can adsorb the positioning blocks on the track groove to prevent the positioning blocks from shifting. Put the fixing holes over the rotating blocks and the positioning blocks so that the main control board is first suspended on the positioning blocks, and then rotate the rotating blocks in sequence so that the positioning rods rotate out of the central movable groove, and then the positioning rods clamp the main control board so that the main control board cannot disengage from the positioning blocks. Insert the wiring head into the pin to complete the installation of the main control board;

[0021] Step 3: Store the mounting plate. Manually push the first rotating plate and the second rotating plate to slide along the sliding grooves so that the first rotating plate or the second rotating plate forms an acute angle with both sides of the mounting plate. At this time, pushing the mounting plate can make the first rotating plate and the second rotating plate slide closer along the sliding grooves, and finally the mounting plate is stored in the mounting slot. During this period, the card slot can first push the block to rotate, so that the block drives the movable rod to slide and pulls the connecting column to slide into the vertical groove. At this time, the spring is compressed. When the block is completely inserted into the card slot, the block loses force and the spring pushes the movable rod to closely adhere to the side wall of the vertical groove and the block closely adheres to the card slot, realizing the locking of the mounting plate. During the storage process, the steel wire rope is not stressed, and the baffle is pushed by the mounting slot and slides out along the strip-shaped through groove, so that the baffle is located above the main control board;

[0022] Step 4: When the main control board needs to be repaired and maintained, repeat the above operation of unfolding the mounting plate so that the main control board extends out of the refrigerator for repair. After the repair is completed, then store the mounting plate back into the mounting slot and lock it.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The present invention sets up a movable mechanism. When the installation plate is fully unfolded after moving away from the installation groove due to the arrangement of the chute, both the first rotating plate or the second rotating plate form an obtuse angle with both sides of the installation plate. At this time, when installing the main control board on the installation plate or applying a force, the installation plate will be restricted by the first rotating plate and the second rotating plate and cannot move, so that the position of the installation plate can be kept stable, without affecting the normal disassembly and assembly of the main control board. By installing the main control board with a movable and unfoldable installation plate, the installation plate can extend out of the rear compartment of the refrigerator, which can prevent damage to the refrigerator and pipelines caused by using tools to disassemble screws in a narrow space. It is also more convenient to insert wires after installing the main control board. After inserting the wires, the installation plate and the main control board as a whole are pushed into the installation groove, which can reduce the damage of the pins caused by inserting wires in a narrow space. It has a positive effect on the safe use and convenient disassembly and assembly of the main control board. And during the later maintenance, only need to unfold the installation plate to make the main control board extend out of the refrigerator for inspection and maintenance without removing the main control board. Compared with the traditional disassembly and maintenance method, there is no need to hold the main control board with one hand and operate the tool to disassemble the screws with the other hand, which reduces the operation steps, reduces the operation risk, and protects the equipment safety.

[0025] The present invention sets up a locking mechanism. When the locking mechanism pushes the installation plate into the installation groove after installing the main control board, the clamping block can be automatically clamped into the clamping groove through the push of the installation plate, thereby locking the installation plate in the installation groove. Compared with the installation method of screwing, there is no need to use external tools and it is not restricted by a narrow space. To unlock the installation plate, only need to manually press two connecting columns. When pressing the two connecting columns with both hands, just hold the two handles by the way and pull out and unfold the installation plate, and the operation is simple and convenient.

[0026] The present invention sets up a positioning mechanism. The positioning mechanism determines the fixed position through four movable positioning blocks, and can realize the fixed installation of main control boards of different specifications. The track groove can also be used for heat dissipation. When the adjustment is in place, the magnet can adsorb the positioning block on the track groove to prevent the positioning block from shifting. When in use, the four fixing holes of the main control board as a whole can also be synchronously positioned first, which can effectively prevent the main control board from shifting. Rotate the rotating block to make the end of the positioning rod extend out of the central movable groove and clamp the fixing hole. There is no need for external tools, the operation is simple, and there will be no situation of holding the main control board with one hand and screwing with the other hand, effectively improving the installation convenience of the main control board. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is an overall structural schematic diagram of an installation structure for a refrigerator main control board proposed by the present invention;

[0028] Figure 2 is an internal structural schematic diagram of a refrigerator of an installation structure for a refrigerator main control board proposed by the present invention;

[0029] Figure 3Schematic diagram of the back structure of a refrigerator for the mounting structure of the main control board of the present invention;

[0030] Figure 4 Schematic diagram of the main control board structure for the mounting structure of the main control board of the present invention;

[0031] Figure 5 Schematic diagram of the unfolded state of the mounting plate and the mounting bottom plate for the mounting structure of the main control board of the present invention;

[0032] Figure 6 Schematic diagram of the baffle structure for the mounting structure of the main control board of the present invention;

[0033] Figure 7 Top view of the unfolded state of the mounting plate and the mounting bottom plate for the mounting structure of the main control board of the present invention;

[0034] Figure 8 Schematic diagram of the moving mechanism structure for the mounting structure of the main control board of the present invention;

[0035] Figure 9 Schematic diagram of the locking mechanism structure for the mounting structure of the main control board of the present invention;

[0036] Figure 10 For the mounting structure of the main control board of the present invention Figure 5 Enlarged view of the structure of area A in;

[0037] Figure 11 Schematic diagram of the positioning mechanism structure for the mounting structure of the main control board of the present invention;

[0038] Figure 12 Schematic diagram of the positioning rod structure for the mounting structure of the main control board of the present invention;

[0039] Figure 13 Cross-sectional view of the positioning block structure for the mounting structure of the main control board of the present invention.

[0040] In the figure: 1, refrigerator; 2, rear cover; 3, maintenance port; 4, cooler; 5, main control board; 51, pin; 52, fixing hole; 6, mounting base plate; 61, mounting groove; 62, first rotating plate; 63, second rotating plate; 7, mounting plate; 71, handle; 8, moving mechanism; 9, fixing strip; 91, sliding groove; 10, baffle; 101, steel wire rope; 11, locking mechanism; 12, clamping block; 13, moving rod; 14, connecting column; 15, spring; 16, clamping groove; 17, track groove; 18, positioning mechanism; 19, positioning block; 191, magnet; 20, central moving groove; 21, arc groove; 22, rotating block; 23, positioning rod; 24, control block. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0042] Referring to Figures 1-13 , an installation structure for the main control board of a refrigerator, including a refrigerator 1 and a mounting plate 7. The top of the back of the refrigerator 1 is fixedly installed with a mounting base plate 6 through bolts. A mounting groove 61 is opened on one side of the mounting base plate 6. A first rotating plate 62 is rotatably connected to one side of the mounting groove 61. Two coaxial second rotating plates 63 are rotatably connected to the other side of the mounting groove 61. The ends of the first rotating plate 62 and the second rotating plate 63 are rotatably connected to a mounting plate 7. A moving mechanism 8 including a fixing strip 9 is provided on the side of the mounting plate 7 close to the mounting base plate 6. A locking mechanism 11 including a clamping block 12 and a connecting column 14 is provided on both side walls of the mounting groove 61. A track groove 17 is opened on the side of the mounting plate 7 away from the mounting base plate 6. Four groups of positioning mechanisms 18 including a positioning block 19 and a rotating block 22 are slidably connected around the track groove 17;

[0043] It further includes a main control board 5. Fixing holes 52 are opened around the main control board 5. A pin 51 and a control chip are installed on one side of the main control board 5;

[0044] Four fixing strips 9 are fixedly connected to one side of the mounting plate 7. Among them, the two fixing strips 9 at the top and the bottom are symmetrical to each other, and the two fixing strips 9 in the middle are symmetrical to each other. Sliding grooves 91 are opened on the fixing strips 9. The distance between the ends of each sliding groove 91 close to both side walls of the mounting plate 7 is greater than the distance between the rotating shafts of the first rotating plate 62 and the second rotating plate 63 on the mounting base plate 6. The ends of the first rotating plate 62 and the second rotating plate 63 are slidably connected to the sliding grooves 91 through sliders;

[0045] Vertical grooves are symmetrically provided on both side walls of the mounting groove 61, and a movable rod 13 is slidably connected in the vertical groove. A block 12 that penetrates into the mounting groove 61 is rotatably connected to the top and bottom of one side of the movable rod 13, and a connecting column 14 that penetrates through the side wall of the mounting base plate 6 is fixedly connected to the middle of the other side of the movable rod 13;

[0046] Four positioning blocks 19 are slidably connected around the track groove 17 , and a rotating block 22 is rotatably connected to one side of the positioning block 19 . The diameters of the rotating block 22 and the positioning block 19 are matched with the fixing hole 52 . The refrigerator 1 is small in size and has limited installation space. The main control board 5 is used to control the temperature and other parameters of the refrigerator 1. The pin 51 is used to plug in the wire. The fixing hole 52 cooperates with the positioning mechanism 18 to fix the main control board 5 on the mounting plate 7. The mounting base plate 6 is fixed to the back of the refrigerator 1 at the beginning of the assembly of the refrigerator 1. The main control board 5 is quickly disassembled and assembled by installing it on the mounting plate 7. The mounting groove 61 is used to accommodate the mounting plate 7. The two second rotating plates 63 rotate coaxially. The whole can be rotated by moving any one of the second rotating plates 63. The movable mechanism 8 connects the mounting base plate 6 and the mounting plate 7 together and can push the mounting plate 7 to approach or move away from the mounting groove 61 by rotating the first rotating plate 62 and the second rotating plate 63. The setting of the slide groove 91 makes it possible for the mounting plate 7 to be in a fully expanded state after being away from the mounting groove 61. The rotating shafts of the first rotating plate 62 and the second rotating plate 63 slide to one end of the slide groove 91 close to the two side walls of the mounting plate 7 (such as Figure 7 and Figure 8) At this time, since the distance between the ends of the sliding groove 91 close to the two side walls of the mounting plate 7 is greater than the distance between the rotating shafts of the first rotating plate 62 and the second rotating plate 63 on the mounting base plate 6, the first rotating plate 62 and the second rotating plate 63 are not parallel at this time, but are inclined with respect to the mounting plate 7, that is, both the first rotating plate 62 and the second rotating plate 63 form an obtuse angle with the two sides of the mounting plate 7. At this time, when the main control board 5 is mounted on the mounting plate 7 or a force is applied, the mounting plate 7 will be restricted by the first rotating plate 62 and the second rotating plate 63 and cannot move, so that the position of the mounting plate 7 can be kept stable, without affecting the normal disassembly and assembly of the main control board 5. After the installation is completed, only need to manually push the first rotating plate 62 and the second rotating plate 63 so that the first rotating plate 62 or the second rotating plate 63 forms an acute angle with the two sides of the mounting plate 7, then the above self-locking state can be released. At this time, pushing the mounting plate 7 can make the first rotating plate 62 and the second rotating plate 63 slide along the sliding groove 91 and approach each other, and finally the mounting plate 7 is received into the mounting groove 61. By using the movable and expandable mounting plate 7 to mount the main control board 5, the mounting plate 7 can extend out of the rear compartment of the refrigerator 1, which can prevent damage to the cooler 4 and pipelines caused by using tools to disassemble screws in a narrow space, and can also facilitate wiring after mounting the main control board 5. After wiring, pushing the mounting plate 7 and the main control board 5 as a whole into the mounting groove 61 can reduce the damage to the pins 51 caused by wiring operation in a narrow space, which has a positive effect on the safe use and convenient disassembly and assembly of the main control board 5. And during the later maintenance, only need to expand the mounting plate 7 so that the main control board 5 extends out of the refrigerator 1 to perform inspection and maintenance without disassembling the main control board 5. Compared with the traditional disassembly and maintenance method, there is no need to hold the main control board 5 with one hand and operate tools to disassemble screws with the other hand, which reduces the operation steps, reduces the operation risk, and protects the equipment safety. When the locking mechanism 11 pushes the mounting plate 7 into the mounting groove 61 after the main control board 5 is installed, the clamping block 12 can be automatically clamped into the clamping groove 16 through the push of the mounting plate 7, thereby locking the mounting plate 7 in the mounting groove 61. Compared with the installation method of screwing, there is no need to use external tools and is not restricted by a narrow space. And to unlock the mounting plate 7, only need to manually press the two connecting columns 14. When pressing the two connecting columns 14 with both hands, just hold the two handles 71 by the way to pull out and expand the mounting plate 7, and the operation is simple and convenient. The positioning mechanism 18 determines the fixed position through four movable positioning blocks 19, and can realize the fixed installation of main control boards 5 of different specifications. After aligning the positions of the four positioning blocks 19 with the positions of the fixing holes 52, put the fixing holes 52 on the rotating block 22 and the positioning blocks 19 so that the main control board 5 is first suspended on the positioning blocks 19, and then rotate the rotating block 22 so that the positioning rod 23 rotates out of the central movable groove 20, and then the positioning rod 23 clamps the main control board 5 so that the main control board 5 cannot break away from the positioning blocks 19, then the fixed installation of the main control board 5 can be realized. Reversing the rotating block 22 will drive the positioning rod 23 to be received back into the central movable groove 20 to unlock the main control board 5,The movable positioning block 19 is applicable to main control boards 5 of various specifications. During use, the four fixing holes 52 of the whole main control board 5 can be synchronously positioned first, which can effectively prevent the main control board 5 from shifting, and there will be no situation where one hand holds the main control board 5 and the other hand screws the screws, effectively improving the installation convenience of the main control board 5.

[0047] As a technical optimization scheme of the present invention, a rear cover 2 is fixedly installed on the back of the refrigerator 1. An inspection opening 3 is provided at the top of the rear cover 2, and the inspection opening 3 corresponds to the position of the mounting plate 7. A refrigerator 1 is fixedly installed with a refrigerator 4 and a supporting pipeline on the back. The rear cover 2 is the overall cover of the refrigerator 1. The inspection opening 3 is used for the usual maintenance of the main control board 5. Generally, the whole rear cover 2 will not be removed during inspection, and only through the inspection opening 3.

[0048] As a technical optimization scheme of the present invention, the first rotating plate 62 and the two second rotating plates 63 are arranged in a staggered manner. A groove is provided on the side wall of the installation groove 61. A torsion spring is arranged on the rotating shafts of the first rotating plate 62 and the second rotating plate 63 in the installation groove 61. The torsion spring can not only push the first rotating plate 62 and the second rotating plate 63 to rotate and then push the mounting plate 7 to unfold when pressing the connecting column 14 to unlock the mounting plate 7, but also continuously apply a reaction force to the first rotating plate 62 and the second rotating plate 63 when installing the main control board 5 after unfolding, jointly maintaining the stability of the mounting plate 7 and ensuring the normal disassembly and assembly of the main control board 5. The groove is used for placing the first rotating plate 62 and the second rotating plate 63 when the mounting plate 7 is stored.

[0049] As a technical optimization scheme of the present invention, handles 71 are fixedly connected to both sides of the mounting plate 7. A baffle 10 is slidably connected to the top of the mounting plate 7 through a strip-shaped through groove. Two steel wire ropes 101 are fixedly connected between the side wall of the baffle 10 and the installation groove 61. The sum of the length of the steel wire rope 101 and the width of the baffle 10 is equal to the distance between the outer wall of the mounting plate 7 and the side wall of the installation groove 61. The handle 71 facilitates manually pulling or pressing the mounting plate 7. In the unfolded state of the mounting plate 7, the steel wire rope 101 pulls the baffle 10, so that the baffle 10 is located between the mounting plate 7 and the mounting bottom plate 6 without affecting the disassembly, assembly or maintenance of the main control board 5. When the installation or maintenance of the main control board 5 is completed, the mounting plate 7 is retracted into the installation groove 61, the steel wire rope 101 is not stressed, and the baffle 10 is pushed by the installation groove 61 and slides out along the strip-shaped through groove, so that the baffle 10 is located above the main control board 5. At this time, when the refrigerator 1 is in use, it can prevent the condensed water droplets that may appear on the outer wall of the refrigerator 4 from falling on the main control board 5 and causing damage.

[0050] As a technical optimization solution of the present invention, the first rotating plate 62 is slidably connected in the sliding groove 91 formed between the opposite surfaces of the two fixing bars 9 in the middle, and the two second rotating plates 63 are respectively slidably connected in the sliding groove 91 formed between the opposite surfaces of the two fixing bars 9 at the top and bottom. When the mounting plate 7 is unfolded, the first rotating plate 62 and the second rotating plate 63 are unfolded and the ends slide to one end of the sliding groove 91 on both sides of the mounting plate 7. On the contrary, when the mounting plate 7 is retracted, the first rotating plate 62 and the second rotating plate 63 are retracted and the ends slide to the other end of the sliding groove 91 in the middle of the mounting plate 7.

[0051] As a technical optimization solution of the present invention, the diameter of the connecting column 14 outside the mounting base plate 6 is larger than the diameter inside the mounting base plate 6. A spring 15 is sleeved on the side of the connecting column 14 close to the movable rod 13. One end of the spring 15 is fixedly connected to the outer wall of the mounting base plate 6, and the other end of the spring 15 is fixedly connected to the side wall of the large-diameter end of the connecting column 14. A protective box is arranged outside the spring 15. The spring 15 pushes the connecting column 14 to move towards the outside of the mounting base plate 6 and finally makes the movable rod 13 closely attached to the side wall of the vertical groove. At this time, the movable rod 13 pulls one end of the clamping block 12, and the other end of the clamping block 12 used for clamping with the clamping groove 16 can extend out of the mounting groove 61. In this state, when the mounting plate 7 is pushed and retracted into the mounting groove 61, the clamping groove 16 can first push the clamping block 12 to rotate so that the clamping block 12 drives the movable rod 13 to slide and pulls the connecting column 14 to slide into the vertical groove. At this time, the spring 15 is compressed by force. When the clamping block 12 is completely inserted into the clamping groove 16, the clamping block 12 loses force and the spring 15 pushes the movable rod 13 to closely attach to the side wall of the vertical groove and the clamping block 12 closely attaches to the clamping groove 16, that is, the locking of the mounting plate 7 is realized.

[0052] As a technical optimization solution of the present invention, four clamping grooves 16 are symmetrically arranged on both side walls of the mounting plate 7, and the position and shape of each clamping groove 16 respectively correspond to each clamping block 12. When unlocking the mounting plate 7, manually pressing the connecting column 14 to overcome the reaction force of the spring 15 can push the movable rod 13 to drive the clamping block 12 to rotate, so that the clamping block 12 is separated from the clamping groove 16. At this time, the reaction force of the torsion spring can push the first rotating plate 62 and the second rotating plate 63 to rotate and cooperate with the handle 71 to unfold the mounting plate 7.

[0053] As a technical optimization solution of the present invention, a magnet 191 is installed on the contact surface between the positioning block 19 and the track groove 17. A central movable groove 20 is provided in the middle of the positioning block 19. Two arc grooves 21 are symmetrically provided at the top and bottom of the central movable groove 20. Two positioning rods 23 that are slidably connected to the central movable groove 20 are rotatably connected to the top and bottom of one side of the rotating block 22. A control block 24 that is slidably connected to the arc groove 21 is fixedly provided on one side of the positioning rod 23. The positioning block 19 can be manually toggled so that the positioning block 19 can move within the track groove 17 to facilitate the installation of main control boards 5 of different specifications. The track groove 17 can also be used for heat dissipation. After adjustment in place, the magnet 191 can adsorb the positioning block 19 on the track groove 17 to prevent the positioning block 19 from shifting. When the rotating block 22 rotates, it can drive the positioning rod 23 to rotate. Since the control block 24 of the positioning rod 23 is slidably connected in the arc groove 21, when the positioning rod 23 rotates, restricted by the arc groove 21, the positioning rod 23 can expand and contract in the central movable groove 20. Before installing the main control board 5, the positioning rod 23 is retracted into the central movable groove 20. When the main control board 5 is suspended on the positioning block 19, the rotating block 22 is rotated so that the end of the positioning rod 23 extends out of the central movable groove 20 and catches the fixing hole 52, which is simple to operate without external tools.

[0054] When the present invention is in use, the mounting base plate 6 has been fixed to the back of the refrigerator 1 at the beginning of the assembly of the refrigerator 1. By pressing the connecting columns 14 with both hands to overcome the reaction force of the spring 15, the movable rod 13 can be pushed to slide along the vertical groove to drive the clamping block 12 to rotate, so that the clamping block 12 disengages from the clamping groove 16. At this time, the reaction force of the torsion spring can push the first rotating plate 62 and the second rotating plate 63 to rotate and cooperate with the handle 71 to unfold the mounting plate 7. When the first rotating plate 62 and the second rotating plate 63 are unfolded and the ends slide to one end of the sliding grooves 91 on both sides of the mounting plate 7, when the mounting plate 7 is in a fully unfolded state after moving away from the mounting groove 61, both the first rotating plate 62 or the second rotating plate 63 form an obtuse angle with both sides of the mounting plate 7. During the unfolding process of the mounting plate 7, the steel wire rope 101 pulls the baffle 10, so that the baffle 10 slides along the strip-shaped through groove to between the mounting plate 7 and the mounting base plate 6.

[0055] Manually toggle the positioning block 19 to move within the track groove 17 to facilitate the installation of main control boards 5 of different specifications. After aligning the positions of the four positioning blocks 19 with the positions of the fixing holes 52, the magnet 191 can adsorb the positioning block 19 on the track groove 17 to prevent the positioning block 19 from shifting. The fixing hole 52 is sleeved on the rotating block 22 and the positioning block 19 so that the main control board 5 is first suspended on the positioning block 19, and then the rotating block 22 is rotated in sequence so that the positioning rod 23 rotates out of the central movable groove 20, and then the positioning rod 23 catches the main control board 5 so that the main control board 5 cannot disengage from the positioning block 19. Inserting the wiring head into the pin 51 completes the installation of the main control board 5.

[0056] Receive the mounting plate 7, manually push the first rotating plate 62 and the second rotating plate 63 to slide along the chute 91 so that the first rotating plate 62 or the second rotating plate 63 forms an acute angle with both sides of the mounting plate 7. At this time, pushing the mounting plate 7 can make the first rotating plate 62 and the second rotating plate 63 slide closer along the chute 91, and finally the mounting plate 7 is received into the mounting groove 61. During this period, the card slot 16 can first push the latch 12 to rotate, so that the latch 12 drives the movable rod 13 to slide and pulls the connecting column 14 to slide into the vertical groove. At this time, the spring 15 is compressed under force. When the latch 12 is completely inserted into the card slot 16, the latch 12 loses force, and the spring 15 then pushes the movable rod 13 to closely adhere to the side wall of the vertical groove, and the latch 12 closely adheres to the card slot 16, that is, the locking of the mounting plate 7 is realized. During the storage process, the steel wire rope 101 is not stressed, and the baffle 10 is pushed by the mounting groove 61 and slides out along the strip-shaped through groove, so that the baffle 10 is located above the main control board 5.

[0057] When it is necessary to repair and maintain the main control board 5, repeat the above operation of unfolding the mounting plate 7 so that the main control board 5 extends out of the refrigerator 1 for repair. After the repair is completed, then receive the mounting plate 7 back into the mounting groove 61 and lock it.

[0058] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, then the present invention is also intended to include these changes and modifications.

[0059] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An installation structure for a refrigerator main control board, comprising a refrigerator (1) and a mounting plate (7), characterized in that: At the top of the back surface of the refrigerator (1), a mounting base plate (6) is fixedly installed by bolts. On one side of the mounting base plate (6), a mounting groove (61) is provided. On one side of the mounting groove (61), a first rotating plate (62) is rotatably connected. On the other side of the mounting groove (61), two coaxial second rotating plates (63) are rotatably connected. The ends of the first rotating plate (62) and the second rotating plates (63) are rotatably connected to a mounting plate (7). On the side of the mounting plate (7) close to the mounting base plate (6), an actuating mechanism (8) including a fixing strip (9) is provided. On both side walls of the mounting groove (61), a locking mechanism (11) including a clamping block (12) and a connecting column (14) is provided. On the side of the mounting plate (7) away from the mounting base plate (6), a track groove (17) is provided. Around the track groove (17), four groups of positioning mechanisms (18) including a positioning block (19) and a rotating block (22) are slidably connected. It further includes a main control board (5). Fixing holes (52) are provided around the main control board (5). On one side of the main control board (5), pins (51) and a control chip are installed. On one side of the mounting plate (7), four fixing strips (9) are fixedly connected. Among them, the two fixing strips (9) at the top and the bottom are symmetrical to each other, and the two fixing strips (9) in the middle are symmetrical to each other. A sliding groove (91) is provided on the fixing strip (9). The distance between the ends of each sliding groove (91) close to the two side walls of the mounting plate (7) is greater than the distance between the rotating shafts of the first rotating plate (62) and the second rotating plates (63) on the mounting base plate (6). The ends of the first rotating plate (62) and the second rotating plates (63) are slidably connected to the sliding groove (91) through sliders. Vertically grooves are symmetrically provided on both side walls of the mounting groove (61). An actuating rod (13) is slidably connected in the vertically grooves. On the top and bottom of one side of the actuating rod (13), a clamping block (12) penetrating into the mounting groove (61) on one side is rotatably connected. In the middle of the other side of the actuating rod (13), a connecting column (14) penetrating out of the side wall of the mounting base plate (6) is fixedly connected. Four positioning blocks (19) are slidably connected around the track groove (17). On one side of the positioning block (19), a rotating block (22) is rotatably connected. The diameters of the rotating block (22) and the positioning block (19) are adapted to the fixing holes (52).

2. The installation structure for the main control board of a refrigerator according to claim 1, characterized in that: A rear cover (2) is fixedly installed on the back surface of the refrigerator (1). An inspection opening (3) is provided at the top of the rear cover (2). The inspection opening (3) corresponds to the position of the mounting plate (7). A refrigerator (1) is fixedly installed with a refrigerator (4) and a matching pipeline on the back surface.

3. The mounting structure for the main control board of a refrigerator according to claim 1, characterized in that: The first rotating plate (62) and the two second rotating plates (63) are arranged in a staggered manner. A groove is provided on the side wall of the mounting groove (61). A torsion spring is provided on the rotating shafts of the first rotating plate (62) and the second rotating plates (63) in the mounting groove (61).

4. The mounting structure for the main control board of a refrigerator according to claim 1, characterized in that: On both sides of the mounting plate (7), a handle (71) is fixedly connected. On the top of the mounting plate (7), a baffle (10) is slidably connected through a strip-shaped through groove. Two steel wires (101) are fixedly connected between the side wall of the baffle (10) and the mounting groove (61). The sum of the length of the steel wire (101) and the width of the baffle (10) is equal to the distance between the outer wall of the mounting plate (7) and the side wall of the mounting groove (61).

5. The installation structure for the main control board of a refrigerator according to claim 1, characterized in that: The first rotating plate (62) is slidably connected in a chute (91) formed between the opposite surfaces of two fixing bars (9) in the middle, and the two second rotating plates (63) are respectively slidably connected in chutes (91) formed between the opposite surfaces of two fixing bars (9) at the top and bottom.

6. The mounting structure for the main control board of a refrigerator according to claim 1, wherein: The diameter of the connecting column (14) outside the mounting base plate (6) is larger than that inside the mounting base plate (6). A spring (15) is sleeved on the side of the connecting column (14) close to the movable rod (13). One end of the spring (15) is fixedly connected to the outer wall of the mounting base plate (6), and the other end of the spring (15) is fixedly connected to the side wall of the large-diameter end of the connecting column (14). A protective box is arranged outside the spring (15).

7. The mounting structure for the main control board of a refrigerator according to claim 1, wherein: Four card slots (16) are symmetrically formed on both side walls of the mounting plate (7), and the position and shape of each card slot (16) respectively correspond to each clamping block (12).

8. The installation structure for the main control board of a refrigerator according to claim 1, characterized in that: A magnet (191) is installed on the contact surface of the positioning block (19) and the track groove (17). A central moving groove (20) is formed in the middle of the positioning block (19). Two arc-shaped grooves (21) are symmetrically formed at the top and bottom of the central moving groove (20). Two positioning rods (23) that are slidably connected in the central moving groove (20) are rotatably connected to the top and bottom of one side of the rotating block (22). A control block (24) that is slidably connected in the arc-shaped groove (21) is fixedly arranged on one side of the positioning rod (23).

9. A method for an installation structure of a refrigerator main control board according to claim 8, characterized in that: The specific steps are as follows: Step 1: Unfold the mounting plate (7). The mounting base plate (6) has been fixed to the back of the refrigerator (1) at the beginning of the assembly of the refrigerator (1). By pressing the connecting column (14) with both hands to overcome the reaction force of the spring (15), the movable rod (13) can be pushed to slide along the vertical groove, driving the clamping block (12) to rotate, so that the clamping block (12) disengages from the card slot (16). At this time, the reaction force of the torsion spring can push the first rotating plate (62) and the second rotating plate (63) to rotate and cooperate with the handle (71) to unfold the mounting plate (7). When the first rotating plate (62) and the second rotating plate (63) are unfolded and the ends slide to one end of the chutes (91) on both sides of the mounting plate (7), and when the mounting plate (7) is in a fully unfolded state after moving away from the mounting slot (61), both the first rotating plate (62) or the second rotating plate (63) form an obtuse angle with both sides of the mounting plate (7). During the unfolding process of the mounting plate (7), the steel wire rope (101) pulls the baffle (10), so that the baffle (10) slides along the strip-shaped through groove to between the mounting plate (7) and the mounting base plate (6); Step 2: Install the main control board (5). Manually move the positioning block (19) within the track groove (17) to facilitate the installation of main control boards (5) of different specifications. After aligning the positions of the four positioning blocks (19) with the fixing holes (52), the magnet (191) can adsorb the positioning block (19) on the track groove (17) to prevent the positioning block (19) from shifting. Slip the fixing hole (52) over the rotating block (22) and the positioning block (19) so that the main control board (5) is first suspended on the positioning block (19). Then, rotate the rotating block (22) in sequence so that the positioning rod (23) extends out of the central movable groove (20), and further, the positioning rod (23) catches the main control board (5) to prevent the main control board (5) from detaching from the positioning block (19). Insert the wiring head into the pin (51), and the installation of the main control board (5) is completed; Step 3: Store the mounting plate (7). Manually push the first rotating plate (62) and the second rotating plate (63) to slide along the sliding groove (91) so that the first rotating plate (62) or the second rotating plate (63) forms an acute angle with both sides of the mounting plate (7). At this time, push the mounting plate (7), and the first rotating plate (62) and the second rotating plate (63) can slide along the sliding groove (91) and approach each other, and finally, the mounting plate (7) is stored in the installation groove (61). During this process, the card slot (16) can first push the latch (12) to rotate, so that the latch (12) drives the movable rod (13) to slide and pulls the connecting column (14) to slide into the vertical groove. At this time, the spring (15) is compressed under force. When the latch (12) is fully inserted into the card slot (16), the latch (12) loses force, and the spring (15) then pushes the movable rod (13) to closely adhere to the side wall of the vertical groove while the latch (12) closely adheres to the card slot (16), thus realizing the locking of the mounting plate (7). During the storage process, the steel wire rope (101) is not stressed, and the baffle (10) is pushed by the installation groove (61) and slides out along the strip-shaped through groove, so that the baffle (10) is located above the main control board (5); Step 4: When it is necessary to repair and maintain the main control board (5), repeat the above operation of unfolding the mounting plate (7) so that the main control board (5) extends out of the refrigerator (1) for repair. After the repair is completed, store the mounting plate (7) back into the installation groove (61) and lock it.

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