Energy-saving and environment-friendly variable frequency refrigeration display cabinet

Abstract

This invention belongs to the field of refrigerated display cases, specifically an energy-saving and environmentally friendly variable frequency refrigerated display case. It includes a cabinet body with two side glass panels fixedly connected to both sides. A sliding glass door with adjustable tracks is located between the two side glass panels on the cabinet body. Four storage brackets are fixedly connected to the bottom of the cabinet interior, and a pressure sensor is fixedly connected to the top of each storage bracket. A first storage plate is mounted above the four pressure sensors. A base plate is fixedly connected to the bottom of the cabinet, and a variable frequency power supply component is mounted on the base plate. A refrigeration component is installed inside the cabinet, and a defogging component is installed on the top of the cabinet. By incorporating the variable frequency power supply component, the frequency can automatically adjust according to the quantity of goods, achieving energy-saving effects. Furthermore, the two sliding glass doors with adjustable tracks ensure a tighter seal with no overlap when closed, providing excellent sealing and facilitating cleaning.

Description

Technical Field

[0001] This invention belongs to the field of refrigerated display cases, specifically an energy-saving and environmentally friendly variable frequency refrigerated display case. Background Technology

[0002] With social development and the improvement of people's living standards, people's consumption of various desserts has increased, and dessert shops and bakeries are found in cities everywhere. In dessert shops, merchants need to display exquisite and beautiful products to attract customers to buy them, and they also need to refrigerate the displayed products to prevent them from spoiling too quickly. Therefore, refrigerated display cases have appeared on the market.

[0003] Refrigerated display cases typically have large transparent areas to facilitate product display to customers, and they also need doors for easy access to goods by customers or merchants. These factors determine the structure and function of refrigerated display cases, for example:

[0004] Chinese Patent No. CN214179890U discloses a cake display case with a front door, including an equipment box; a cabinet body is fixedly installed on the upper surface of the equipment box; frame panels are fixedly installed on the left and right side walls of the cabinet body, with transparent glass embedded in the middle of the frame panels; front guide rails are horizontally fixedly installed on the upper and lower front surfaces of the cabinet body, and rear guide rails are horizontally fixedly installed on the upper and lower rear surfaces of the cabinet body; both the front and rear guide rails have grooves machined on them; a front transparent cabinet door is installed inside the groove on the front guide rail, and a rear transparent cabinet door is installed inside the groove on the rear guide rail. The slide is equipped with a rear transparent cabinet door. Handles are fixedly installed on the middle of the outer sides of both the front and rear transparent cabinet doors. An air inlet and outlet grille are embedded in the rear side wall of the equipment box. Two cooling fans are symmetrically arranged on the condenser to blow air and cool it down. A baffle is installed on the support frame to reduce the backflow of cold air generated by the evaporator into the equipment box, thus reducing the problem of insufficient cold air circulation inside the cabinet. Multiple cooling fans are spaced apart on the inclined surface of the evaporator to make the cold air circulation inside the cabinet more uniform and improve the cooling effect.

[0005] However, existing refrigerated display cases still have the following problems in actual use:

[0006] 1. Existing refrigerated display cases use ordinary double-track sliding doors in the product display area. Gaps inevitably appear between the two doors, which can cause cold air leakage and affect the refrigeration effect. Even if existing refrigerated display cases have sealing strips between the two doors, after long-term use, the strips will repeatedly rub against the glass door surface, leaving marks that are difficult to clean.

[0007] 2. The glass surface of the display cabinet needs to be cleaned daily to ensure hygiene and aesthetics. In order to improve the sealing effect, there needs to be an overlapping area between the two cabinet doors. However, the overlapping area is difficult to clean effectively, creating a dead corner for hygiene and affecting the appearance.

[0008] 3. Existing refrigerated display cases cannot be frequency-adjusted according to the amount of goods inside, and can only operate continuously at the rated power. Therefore, they are difficult to cool effectively when there are many goods, while wasting energy when there are few goods.

[0009] 4. Due to the internal cooling of the display case, there is a temperature difference between the inside and outside of the glass. Since ordinary refrigerated display cases use single-layer glass, fogging is likely to form on the glass surface, which reduces the display effect of the goods and thus affects the customer's desire to buy.

[0010] 5. After customers or merchants take or put away goods, they sometimes forget to close the cabinet door or do not close it completely. Existing refrigerated display cases cannot close automatically, causing unnecessary leakage of cold air, which in turn reduces the refrigeration effect and increases energy consumption. Summary of the Invention

[0011] To overcome the shortcomings of existing technologies, this invention addresses the technical problem of automatically adjusting the frequency of a variable frequency power supply component. This increases power to ensure refrigeration efficiency when there are many products, and reduces power when there are few products, achieving energy saving and environmental protection. When closed, the two glass cabinet doors are on the same plane, allowing for thorough cleaning of the door surfaces without any blind spots, thus improving the hygiene and aesthetics of the refrigerated display case. It also effectively achieves a good seal, preventing cold air leakage and energy waste. Furthermore, due to the sliding action of the two glass cabinet doors, the elastic rubber strip does not rub against the glass door surface when the doors slide open, thus avoiding... To prevent scratches from forming on the glass cabinet door surface after long-term use, ensuring an aesthetically pleasing appearance, the door closing motor and synchronous belt automatically close the door when guests forget to close it or do not close it tightly, avoiding excessive cold air leakage and unnecessary energy waste. The inclined design of the air blower grille holes, combined with the wind deflector to block cold air, prevents cold air from directly affecting the glass cabinet door and reduces fogging on the glass cabinet door surface. Furthermore, the heat generated by the operation of the frequency converter power supply component warms the air around the frequency converter power supply component, and the second fan blows the hot air to the outer surface of the glass cabinet door, thus eliminating fogging on the glass cabinet door surface.

[0012] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving and environmentally friendly variable frequency refrigerated display cabinet, comprising:

[0013] The cabinet has two side glass panels fixedly connected to both sides, and a glass cabinet door that can slide with a variable track is provided on the cabinet between the two side glass panels.

[0014] The cabinet has four storage brackets fixedly connected to its bottom side. Each storage bracket has a pressure sensor fixedly connected to its top. A first storage board is mounted above the four pressure sensors.

[0015] A base plate is fixedly connected to the bottom of the cabinet, and a frequency converter power supply component is installed on the base plate;

[0016] The cabinet is equipped with a refrigeration unit and a defogging unit.

[0017] Furthermore, the refrigeration component includes a refrigerator. The refrigerator is fixedly connected to the bottom side of the cabinet body below the first shelf. Multiple first fans are evenly distributed on one side of the refrigerator. The air outlet of each first fan is connected to the refrigerator. A return air grille with uniform through grooves is fixedly connected to one side of the first shelf. A second shelf is fixedly connected to the return air grille. A blower grille with uniform through holes is fixedly connected to the side of the first shelf away from the return air grille.

[0018] Furthermore, two slide rails are fixedly connected to both ends of the glass cabinet door inside the cabinet. The two slide rails are parallel to each other and inclined relative to the ground. Each slide rail has a first slide rail and a second slide rail that are connected to each other on the side near the glass cabinet door. Each glass cabinet door is fixedly connected to both ends of a glass bracket. Each glass bracket is rotatably connected to a set of pulleys. Each set of pulleys can slide within the first slide rail and the second slide rail.

[0019] Furthermore, a first lever is rotatably connected at the middle position of each slide rail plate, and a set of second levers is rotatably connected at both ends of each first lever. A connecting rod is hinged between each set of second levers and the corresponding first lever. Each first lever and second lever can guide the pulley in the first slide rail into the second slide rail. Each glass bracket is provided with a guide piece extending into the first and second slide rails at one end near the first lever. The inclined surface of the guide piece can connect with the inclined surface of the first lever. A set of grooves is opened on the outer side of each second lever and first lever. A spring piece that can engage with the groove is fixedly connected inside the slide rail plate at each first lever and second lever.

[0020] Furthermore, a set of wheel frames is fixedly connected to both ends of each slide rail plate, and a set of main pulleys is rotatably connected within each set of wheel frames. A set of door closing motors is fixedly connected to the end of each slide rail plate away from the glass cabinet door. The power output end of each door closing motor is driven by the corresponding main pulley. A synchronous belt is driven between each set of main pulleys. Connecting pieces are fixedly connected to the glass brackets on the two glass cabinet doors near the two synchronous belts. Each connecting piece has a groove for accommodating the synchronous belt to pass through. Each synchronous belt has fasteners that slide relative to the connecting piece fixedly connected on both sides of the groove.

[0021] Furthermore, each set of wheel frames is rotatably connected to a set of auxiliary pulleys at both ends, and each synchronous belt passes around the outside of the corresponding set of auxiliary pulleys. A magnetic block is fixedly connected to one end of each glass bracket near the side glass plate, and a Hall sensor is fixedly connected to the side wall of the cabinet at the corresponding position of each magnetic block.

[0022] Furthermore, each of the two glass cabinet doors is fixedly connected to a handle on one side near the two side glass panels, and each glass cabinet door is fixedly connected to both sides with an elastic rubber strip. Inside the cabinet, a support plate is fixedly connected to each slide rail, and the end of the support plate can abut against the glass bracket.

[0023] Furthermore, the defogging component includes an air guide hood. An air guide hood is fixedly connected to the outside of the cabinet near the bottom of the glass cabinet door. The interior of the air guide hood is connected to the space where the frequency converter power supply component is located. Multiple second fans are provided on the bottom side of the cabinet near the air guide hood. The air outlet of each second fan is connected to the interior of the air guide hood. Air inlet slots are provided on both sides of the cabinet at the corresponding positions of the frequency converter power supply component.

[0024] Furthermore, the through holes of the air blower grille are inclined toward the second shelf, a baffle plate is fixedly connected inside the cabinet between the air blower grille and the glass cabinet door, an infrared temperature sensor is fixedly connected to the top of the cabinet, multiple casters are rotatably connected to the bottom of the base plate, and a foot support is threadedly connected to the bottom of the base plate near each caster.

[0025] In summary, compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] (1) Automatic frequency conversion is achieved by using frequency conversion power supply components. When there are many products, the power is increased to ensure the refrigeration effect, and when there are few products, the power is reduced to achieve the effect of frequency reduction, energy saving and environmental protection.

[0027] (2) When the two glass cabinet doors are closed, they are on the same plane, which can thoroughly clean the surface of the glass cabinet doors without cleaning dead corners, thereby improving the hygiene and aesthetics of the refrigerated display cabinet, and effectively achieving a good sealing effect to avoid cold air leakage and energy waste.

[0028] (3) Due to the sliding effect of the two glass cabinet doors, the elastic rubber strip does not rub against the surface of the glass cabinet door when the glass cabinet door is slid open, thus avoiding the formation of scratch marks on the surface of the glass cabinet door after long-term use, and ensuring the aesthetic effect.

[0029] (4) When guests forget to close the cabinet door or do not close the glass cabinet door tightly, the door closing motor and synchronous belt are used to achieve automatic door closing, so as to avoid excessive leakage of cold air and unnecessary energy waste.

[0030] (5) By tilting the air blower grille through holes and using a baffle to block the cold air, the cold air is prevented from directly acting on the glass cabinet door, reducing the fogging on the surface of the glass cabinet door. In addition, the heat generated by the operation of the frequency converter power supply component raises the temperature of the air around the frequency converter power supply component. The hot air is blown onto the outer surface of the glass cabinet door by the second fan, thereby eliminating the fogging on the surface of the glass cabinet door. Attached Figure Description

[0031] Figure 1 This is a three-dimensional schematic diagram of the present patent.

[0032] Figure 2 This is a three-dimensional schematic diagram from another perspective of this patent.

[0033] Figure 3 This is a front view of the patent.

[0034] Figure 4 for Figure 3 A three-dimensional sectional view at point AA.

[0035] Figure 5 for Figure 4 A magnified view of a section at point B.

[0036] Figure 6 for Figure 4 A magnified view of a section at point C.

[0037] Figure 7 This is a schematic diagram of the internal structure of this patent.

[0038] Figure 8 for Figure 7 A magnified view of a section at point D.

[0039] Figure 9 This is a 3D schematic diagram of the slide rail plate.

[0040] Figure 10 This is a schematic diagram of the principle of the slide rail plate.

[0041] Figure 11 This is a schematic diagram showing the two glass cabinet doors of this patent when they are open.

[0042] Explanation of reference numerals in the attached drawings: Cabinet body 10; Side glass panel 11; Glass cabinet door 12; Handle 13; First shelf 14; Return air grille 15; Air blowing grille 16; Shelf 17; Pressure sensor 18; First fan 19; Refrigerator 20; Second fan 21; Air guide hood 22; Wind baffle 23; Infrared temperature sensor 24; Support plate 25; Base plate 26; Variable frequency power supply assembly 27; Casters 28; Foot support 29; Slide rail 30; First slide rail 31; Second slide rail 32; Pulley 33; Glass bracket 34; Guide plate 35; First lever 36; Second lever 37; Connecting rod 38; Connecting piece 39; Groove 40; Synchronous belt 41; Fastener 42; Auxiliary pulley 43; Main pulley 44; Wheel frame 45; Door closing motor 46; Magnetic block 47; Hall sensor 48; Spring 49; Groove 50; Air inlet slot 51; Elastic rubber strip 52; Second shelf 53. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0044] Example 1:

[0045] like Figure 1-11 As shown, an energy-saving and environmentally friendly variable frequency refrigerated display cabinet includes a cabinet body 10. The cabinet body 10 has an insulation foam layer inside its walls. A base plate 26 is fixedly connected to the bottom of the cabinet body 10. A variable frequency power supply assembly 27 is fixedly connected to the base plate 26. Four storage brackets 17 are symmetrically distributed and fixedly connected at the four corners of the bottom side of the cabinet body 10. A pressure sensor 18 is fixedly connected to the top of each storage bracket 17. A first storage plate 14 is supported on the top of the four pressure sensors 18. A component is fixedly connected to the side of the first storage plate 14 closest to the vertical part of the cabinet body 10. A return air grille 15 is provided, and a second shelf 53 is attached to the return air grille 15. A blower grille 16 is fixedly connected to the side of the first shelf 14 away from the return air grille 15. Multiple sets of through slots are evenly distributed on the return air grille 15, and multiple through holes are evenly distributed on the blower grille 16. A cooler 20 is fixedly connected inside the cabinet 10 below the first shelf 14. Multiple first fans 19 are evenly distributed and fixedly connected to one side of the air guide hood 22, and the air outlet of each first fan 19 is connected to the air guide hood 22.

[0046] By setting up a first fan 19 and a cooler 20, the air inside the cabinet 10 can be circulated and cooled to form a cold airflow, which displays and refrigerates the goods inside the cabinet 10. By setting up a pressure sensor 18, the quantity of goods inside the cabinet 10 can be automatically detected, and then the frequency conversion power supply component 27 can be automatically converted to increase the power to ensure the refrigeration effect when there are many goods, and reduce the power when there are few goods, so as to achieve the effect of frequency reduction, energy saving and environmental protection.

[0047] like Figure 1-11 As shown, multiple casters 28 are rotatably connected to the bottom of the base plate 26, and foot supports 29 are threadedly connected to the bottom of the base plate 26 near each caster 28.

[0048] By installing casters 28, the refrigerated display case can be easily moved, while by installing foot braces 29, the refrigerated display case can be stably fixed in a designated position for easy use.

[0049] like Figure 1-11 As shown, two side glass panels 11 are fixedly connected to both ends of the cabinet body 10. Two glass cabinet doors 12 are slidably arranged between the two side glass panels 11. Inside the cabinet body 10, two slide rails 30 are fixedly connected to both ends of the glass cabinet doors 12. The two slide rails 30 are parallel to each other and inclined relative to the ground. Each slide rail 30 has a first slide rail 31 and a second slide rail 32 that are interconnected on the side near the glass cabinet door 12, ensuring that the first slide rail 31 is below the second slide rail 32. Each glass cabinet door 12 has a glass bracket 34 fixedly connected to both ends. Each glass bracket 34 rotates on... A set of pulleys 33 are connected, and each set of pulleys 33 can slide within the first slide rail 31 and the second slide rail 32. A first lever 36 is rotatably connected at the middle of each slide rail plate 30. A set of mutually symmetrical second levers 37 are rotatably connected at both ends of each slide rail plate 30. A connecting rod 38 is hinged between each first lever 36 and the corresponding set of second levers 37. Multiple grooves 50 are evenly distributed on the outer side of each first lever 36 and second lever 37. A spring 49 that can engage with the groove 50 is fixedly connected at the position where each slide rail plate 30 enters the first lever 36 and the second lever 37.

[0050] When the two glass cabinet doors 12 are closed, they are on the same plane, allowing for thorough cleaning of their surfaces without any blind spots, thus improving the hygiene and aesthetics of the refrigerated display case. They also effectively achieve a good sealing effect, preventing cold air leakage and energy waste. Furthermore, when the glass cabinet doors 12 are opened, their trajectory is changed, allowing them to slide open in a staggered manner. With the first lever 36 and the second lever 37, the order in which the two glass cabinet doors 12 are opened is unrestricted. Even after one glass cabinet door 12 is opened, the other glass cabinet door 12 can still slide open normally without causing any burden to the customer.

[0051] like Figure 1-11As shown, each glass cabinet door 12 is fixedly connected to both sides with a transparent elastic rubber strip 52. The two elastic rubber strips 52 between the two glass cabinet doors 12 can be squeezed and sealed with each other. The elastic rubber strips 52 of the two glass cabinet doors 12 near the side glass panel 11 can be squeezed and sealed with the side glass panel 11. The surfaces of the two glass cabinet doors 12 are fixedly connected to the side of the adjacent side glass panel 11. Inside the cabinet body 10, a support plate 25 is fixedly connected near each slide rail 30. The end of each support plate 25 can abut and seal with the corresponding glass bracket 34.

[0052] By setting the elastic rubber strip 52 and the support plate 25, a better sealing effect is provided, further reducing cold air leakage and achieving energy-saving and environmental protection effects. Due to the sliding effect of the two glass cabinet doors 12, the elastic rubber strip 52 does not rub against the surface of the glass cabinet door 12 when the glass cabinet door 12 is slid open, thus avoiding the formation of scratch marks on the surface of the glass cabinet door 12 after long-term use, ensuring an aesthetic effect. In addition, by setting the handle 13, it is convenient for guests to open and close the glass cabinet door 12, while restricting the positional relationship between the two glass cabinet doors 12 after the glass cabinet door 12 is opened, preventing the glass cabinet door 12 from being unable to open normally after the position of the two glass cabinet doors 12 is changed.

[0053] like Figure 1-11 As shown, a set of wheel frames 45 are fixedly connected to both ends of the top of each slide rail plate 30. A set of main pulleys 44 are rotatably connected within each set of wheel frames 45. A synchronous belt 41 is driven and connected to each set of main pulleys 44. A door closing motor 46 is fixedly connected to the side of each slide rail plate 30 away from the glass cabinet door 12 at the corresponding position of each main pulley 44. The power output end of each door closing motor 46 is driven and connected to the corresponding main pulley 44. A set of auxiliary pulleys 43 are rotatably connected within each set of wheel frames 45. Each synchronous belt 41 passes around the outside of the corresponding set of auxiliary pulleys 43. A connecting piece 39 is fixedly connected to the glass bracket 34 on each glass cabinet door 12 near the corresponding synchronous belt 41. Each connecting piece 39 has a groove 40 for accommodating the synchronous belt 41. A set of fasteners 42 are fixedly connected to both sides of the corresponding groove 40 on each synchronous belt 41. The fasteners 42 can slide relative to the connecting piece 39.

[0054] By setting up a synchronous belt 41 and a connecting piece 39, the glass cabinet door 12 can be automatically pulled to its initial position when the guest forgets to close it or does not close it tightly, thus achieving the effect of automatic closing and effectively reducing unnecessary cold air leakage, achieving energy saving and environmental protection.

[0055] like Figure 1-11 As shown, a magnetic block 47 is fixedly connected to the glass bracket 34 near each connecting piece 39, and a Hall sensor 48 is fixedly connected to the side wall of the cabinet 10 at the corresponding position of each magnetic block 47.

[0056] By setting a Hall sensor 48, it is possible to detect whether the glass cabinet door 12 is closed and whether it is tightly closed. In conjunction with the frequency converter power supply component 27, when the glass cabinet door 12 is open, the power of the first fan 19 and the cooler 20 is reduced, so as to avoid the first fan 19 and the cooler 20 doing useless work and reduce energy consumption. Furthermore, by setting two sets of magnetic blocks 47 and Hall sensors 48, it is possible to detect the order in which the two glass cabinet doors 12 are opened, so that the door closing motor 46 can automatically close the two glass cabinet doors 12 in sequence, ensuring that the two glass cabinet doors 12 are closed correctly and ensuring the stability of the equipment operation.

[0057] In this embodiment, initially, the operator moves the refrigerated display case to the designated position, screws the foot support 29 to fix the refrigerated display case in place, and then connects the refrigerated display case to the power supply and control system. At this time, the two glass cabinet doors 12 are closed and on the same plane.

[0058] Subsequently, the control system starts the frequency converter power supply component 27, the first fan 19 and the refrigerator 20. The first fan 19 operates to draw air from inside the cabinet 10 into the refrigerator 20 through the slot of the return air grille 15. The refrigerator 20 operates to cool the air, and the cooled air is blown out from the blower grille 16, continuously circulating to form a cold airflow. The internal temperature of the cabinet 10 is detected by the infrared temperature sensor 24. With the help of the frequency converter power supply component 27, the internal temperature of the cabinet 10 can be controlled within a suitable range to ensure the refrigeration effect.

[0059] In use, merchants can open the glass cabinet door 12 and place the goods to be displayed and refrigerated on the first shelf 14 or the second shelf 53, and then close the glass cabinet door 12. Customers can open the glass cabinet door 12 to take away their favorite goods as needed. The pressure sensor 18 can detect the weight of the goods on the first shelf 14 and the second shelf 53, and thus determine the quantity of goods. The variable frequency power supply component 27 changes the power of the first fan 19 and the refrigeration unit 20 according to the quantity of goods. When there are many goods, the power is increased to ensure the refrigeration effect, and when there are few goods, the power is reduced to achieve the effect of saving energy.

[0060] During the process of merchants and customers taking and placing goods, when the glass cabinet door 12 is closed, the two glass cabinet doors 12 are on the same plane and have no overlapping parts. Merchants can thoroughly clean the surface of the glass cabinet door 12 without any cleaning dead corners, ensuring the hygiene and aesthetics of the refrigerated display cabinet. In addition, the elastic rubber strip 52 blocks the gaps at the edges of the glass cabinet door 12, and the glass bracket 34 and the tray 25 fit tightly together to achieve a good sealing effect and avoid cold air leakage that would cause energy waste.

[0061] When the glass cabinet door 12 is opened by the merchant or customer, the merchant or customer pulls the handle 13 to slide and open the glass cabinet door 12. At this time, the pulley 33 corresponding to the unopened glass cabinet door 12 abuts against the first lever 36 and cannot rotate. Since the second lever 37 is hinged with the connecting rod 38 and is consistent with the first lever 36, the pulley 33 corresponding to the opened glass cabinet door 12 can only be guided by the second lever 37, the first lever 36 and the guide plate 35, and slide into the second slide rail 32 to overcome gravity. The opened glass cabinet door 12 then slides on the second slide rail 32. At this time, the elastic rubber strip 52 will not rub against the surface of the glass cabinet door 12, thereby avoiding scratch marks on the surface of the glass cabinet door 12.

[0062] At this point, the first lever 36 and the second lever 37 are no longer restricted on one side. The glass cabinet door 12 that was not originally opened can slide on the first slide rail 31, and the first lever 36 and the second lever 37 are squeezed and rotated to one side. The spring 49 disengages from the original groove 50 and finally engages with another groove 50. Then the first lever 36 and the second lever 37 will not restrict the sliding of the pulley 33, so that the two glass cabinet doors 12 can slide in the first slide rail 31 and the second slide rail 32 respectively without affecting each other. When it is necessary to close the glass cabinet door 12, the glass cabinet door 12 that is sliding in the first slide rail 31 is first reset. The pulley 33 hits the protruding part of the second lever 37, so that the second lever 37 and the first lever 36 are reset and restored to vertical. Then the glass cabinet door 12 that is sliding in the second slide rail 32 is reset. When the glass cabinet door 12 that is sliding in the second slide rail 32 moves to the end, it falls back into the first slide rail 31 under the action of gravity, so that the two glass cabinet doors 12 are closed on the same plane again.

[0063] Since the first lever 36 and the second lever 37 can tilt in two directions respectively, the order in which the two glass cabinet doors 12 open is not restricted. No matter which glass cabinet door 12 the guest opens first, the first glass cabinet door 12 can slide into the second slide rail 32, and the glass cabinet door 12 that is opened later can slide into the first slide rail 31. This will not cause inconvenience to the guest. Furthermore, the handle 13 on the glass cabinet door 12 that is opened later can limit the range of movement of the glass cabinet door 12 that is opened first, preventing the two glass cabinet doors 12 from being mistakenly closed due to the position being reversed, and thus preventing the two glass cabinet doors 12 from being unable to open normally after being mistakenly closed.

[0064] During the process of a guest opening the glass cabinet door 12, the door closing motor 46 is in a stopped state. When the guest pulls the glass cabinet door 12, the connecting piece 39 moves together with the glass cabinet door 12. The connecting piece 39 pulls the synchronous belt 41 through the buckle 42, causing the main pulley 44 and the door closing motor 46 to idle, which does not affect the guest's normal opening of the glass cabinet door 12. The corresponding connecting piece 39 on the glass cabinet door 12 that enters the second slide rail 32 is raised in height along with it, while the corresponding synchronous belt 41 slides in the groove 40 without changing the shape of the synchronous belt 41.

[0065] After the glass cabinet door 12 is opened, the Hall sensor 48 detects the movement of the magnetic block 47 away. The control system sets a delay time. After the delay time is reached, the control system starts the corresponding door closing motor 46, which causes the synchronous belt 41 to actively move the opened glass cabinet door 12 back to the initial closed state. The order in which the glass cabinet doors 12 are opened can be detected by the separation sequence of the two sets of magnetic blocks 47 and the Hall sensor 48. The control system can close the two glass cabinet doors 12 in the correct order until the magnetic block 47 comes close to the Hall sensor 48 again and the control system shuts down the door closing motor 46. This achieves the function of automatically closing the door if the guest forgets to close the cabinet door or does not close the glass cabinet door 12 tightly, avoiding excessive leakage of cold air and unnecessary energy waste.

[0066] Furthermore, when the magnetic block 47 and the Hall sensor 48 separate, the control system automatically determines that the glass cabinet door 12 is in the open state, and controls the frequency converter power supply component 27 to reduce the power of the first fan 19 and the refrigerator 20. When the magnetic block 47 and the Hall sensor 48 are brought close again, the operating power of the first fan 19 and the refrigerator 20 is restored, thus avoiding energy waste caused by the refrigerated display cabinet still operating at high power when it is open, and achieving the effect of energy saving and environmental protection.

[0067] Example 2:

[0068] like Figure 1-11 As shown, the through holes of the air-blowing grille 16 are inclined and point towards the second shelf 53. A transparent wind baffle 23 is fixedly connected between the air-blowing grille 16 and the glass cabinet door 12. An air guide hood 22 is fixedly connected to the outside of the cabinet body 10, and the opening of the air guide hood 22 points towards the glass cabinet door 12. Multiple second fans 21 are evenly distributed and fixedly connected to the bottom side of the cabinet body 10. The air outlet of each second fan 21 is connected to the inside of the air guide hood 22. An air inlet slot 51 is opened on the side wall of the cabinet body 10 at the corresponding position of the frequency converter power supply component 27. An infrared temperature sensor 24 is fixedly connected to the top support plate 25. The infrared temperature sensor 24 is inclined.

[0069] In this embodiment, by tilting the through holes of the air-blowing grille 16 and using the baffle 23 to block the cold air, the cold air is prevented from directly acting on the glass cabinet door 12, reducing fogging on the surface of the glass cabinet door 12. Furthermore, the heat generated by the operation of the frequency converter power supply component 27 raises the temperature of the air around the frequency converter power supply component 27, and the hot air is blown to the outer surface of the glass cabinet door 12 by the second fan 21, thereby eliminating fogging on the surface of the glass cabinet door 12.

[0070] During operation, the second fan 21 continuously draws outside air into the refrigerated display case through the air inlet 51, achieving a cooling effect on the variable frequency power supply component 27 and ensuring its normal and stable operation. The infrared temperature sensor 24 can detect the temperature inside the cabinet 10, working with the variable frequency power supply component 27 to achieve variable frequency energy saving. Furthermore, the second fan 21, in conjunction with the magnetic block 47 and the Hall sensor 48, can shut down when the glass cabinet door 12 is opened, avoiding unnecessary energy consumption and promoting energy conservation and environmental protection.

[0071] The pressure sensor 18, the first fan 19, the cooler 20, the second fan 21, the infrared temperature sensor 24, the frequency converter power supply component 27, the door closing motor 46, the Hall sensor 48, etc. mentioned above are mature existing technologies, which are only shown in the attached drawings and will not be described in detail in this article.

[0072] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0073] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0074] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. An energy-saving and environmentally friendly variable frequency refrigerated display cabinet, characterized in that, The energy-saving and environmentally friendly variable frequency refrigerated display cabinet includes: Cabinet (10), with two side glass panels (11) fixedly connected to both sides of the cabinet (10), and a glass cabinet door (12) capable of sliding between the two side glass panels (11) is provided on the cabinet (10); Storage brackets (17), four storage brackets (17) are fixedly connected to the bottom side of the cabinet (10), each storage bracket (17) is fixedly connected to the top of a pressure sensor (18), and a first storage board (14) is mounted above the four pressure sensors (18). The base plate (26) is fixedly connected to the bottom of the cabinet (10), and the base plate (26) is provided with a frequency converter power supply component (27); The cabinet (10) is equipped with a refrigeration unit and a defogging unit. Inside the cabinet (10), two slide rails (30) are fixedly connected at both ends of the glass cabinet door (12). The two slide rails (30) are parallel to each other and inclined relative to the ground. Each slide rail (30) has a first slide rail (31) and a second slide rail (32) that are connected to each other on the side near the glass cabinet door (12). Each glass cabinet door (12) has a glass bracket (34) fixedly connected at both ends. Each glass bracket (34) has a set of pulleys (33) rotatably connected to it. Each set of pulleys (33) can slide within the first slide rail (31) and the second slide rail (32). Each of the slide rails (30) is rotatably connected to a first lever (36) at its middle position. Each first lever (36) is rotatably connected to a set of second levers (37) at both ends. Each set of second levers (37) is hinged to a connecting rod (38) with the corresponding first lever (36). Each first lever (36) and second lever (37) can guide the pulley (33) in the first slide rail (31) into the second slide rail (32). Each glass bracket (34) is close to the first... One end of a lever (36) is provided with a guide plate (35) that extends into the first slide rail (31) and the second slide rail (32). The inclined surface of the guide plate (35) can be connected to the inclined surface of the first lever (36). A set of grooves (50) are provided on the outer side of each second lever (37) and the first lever (36). A spring (49) that can engage with the groove (50) is fixedly connected in the slide rail plate (30) at each first lever (36) and second lever (37).

2. The energy-saving and environmentally friendly variable frequency refrigerated display cabinet according to claim 1, characterized in that, The refrigeration component includes a refrigerator (20). The refrigerator (20) is fixedly connected to the bottom side of the cabinet (10) below the first shelf (14). A plurality of first fans (19) are evenly distributed on one side of the refrigerator (20). The air outlet of each first fan (19) is connected to the refrigerator (20). A return air grille (15) with uniform through grooves is fixedly connected to one side of the first shelf (14). A second shelf (53) is fixedly connected to the return air grille (15). A blower grille (16) with uniform through holes is fixedly connected to the side of the first shelf (14) away from the return air grille (15).

3. The energy-saving and environmentally friendly variable frequency refrigerated display cabinet according to claim 1, characterized in that, Each slide rail (30) has a set of wheel frames (45) fixedly connected at both ends. Each set of wheel frames (45) has a set of main pulleys (44) rotatably connected inside. Each slide rail (30) has a set of door closing motors (46) fixedly connected at the end away from the glass cabinet door (12). The power output end of each door closing motor (46) is connected to the corresponding main pulley (44) for transmission. Each set of main pulleys (44) is connected to a synchronous belt (41) for transmission. The glass brackets (34) on the two glass cabinet doors (12) are respectively close to the two synchronous belts (41) and are fixedly connected to connecting pieces (39). Each connecting piece (39) has a groove (40) for accommodating the synchronous belt (41) to pass through. Each synchronous belt (41) is fixedly connected to two fasteners (42) that slide relative to the connecting piece (39) at both sides of the groove (40).

4. The energy-saving and environmentally friendly variable frequency refrigerated display cabinet according to claim 3, characterized in that, Each set of wheel frames (45) is rotatably connected to a set of auxiliary pulleys (43) at both ends. Each synchronous belt (41) passes around the outside of the corresponding set of auxiliary pulleys (43). Each glass bracket (34) is fixedly connected to a magnetic block (47) at one end near the side glass plate (11). A Hall sensor (48) is fixedly connected to the side wall of the cabinet (10) at the corresponding position of each magnetic block (47).

5. The energy-saving and environmentally friendly variable frequency refrigerated display cabinet according to claim 1, characterized in that, Each of the two glass cabinet doors (12) is fixedly connected to a handle (13) near one side of the two side glass panels (11). Each of the glass cabinet doors (12) is fixedly connected to two sides of an elastic rubber strip (52). A support plate (25) is fixedly connected to the inside of the cabinet body (10) near each slide rail (30). The end of the support plate (25) can abut against the glass bracket (34).

6. The energy-saving and environmentally friendly variable frequency refrigerated display cabinet according to claim 2, characterized in that, The defogging component includes an air guide hood (22). The air guide hood (22) is fixedly connected to the bottom of the glass cabinet door (12) on the outside of the cabinet (10). The interior of the air guide hood (22) is connected to the space where the frequency converter power supply component (27) is located. Multiple second fans (21) are provided on the bottom side of the cabinet (10) near the air guide hood (22). The air outlet of each second fan (21) is connected to the interior of the air guide hood (22). Air inlet slots (51) are opened on both sides of the cabinet (10) at the corresponding positions of the frequency converter power supply component (27).

7. The energy-saving and environmentally friendly variable frequency refrigerated display cabinet according to claim 6, characterized in that, The through hole of the air blowing grille (16) is inclined to the second shelf (53). A baffle plate (23) is fixedly connected inside the cabinet (10) between the air blowing grille (16) and the glass cabinet door (12). An infrared temperature sensor (24) is fixedly connected to the top of the cabinet (10).

8. The energy-saving and environmentally friendly variable frequency refrigerated display cabinet according to claim 1, characterized in that, The bottom of the base plate (26) is rotatably connected to multiple casters (28), and the bottom of the base plate (26) is threadedly connected to a foot support (29) near each caster (28).

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