A refrigerated display cabinet with a magnetic door seal

Abstract

The utility model relates to refrigeration equipment technical field especially, relates to a kind of frozen display cabinet with magnetic door seal, including display cabinet body, universal wheel, protective door, handle, glass partition, magnetic stripe ring, rubber ring and frame etc., universal wheel is installed in the four corners of display cabinet body bottom, the left and right sides of the front side of display cabinet body are respectively rotationally connected with the oppositely arranged protective door, handle is equipped in the side of the front side of protective door mutually close, glass partition is embedded in the middle of protective door, rubber ring is embedded in the rear side of protective door, magnetic stripe ring is equipped inside rubber ring, frame is equipped in display cabinet body, frame is made of magnetizable metal material, frame front side and protective door and rubber ring contact cooperation.The utility model is inlayed magnetic stripe ring's rubber ring by being set in the rear side of protective door, and cooperate with the frame of magnetizable metal material, realize the automatic alignment and close closure of protective door using magnetic force, reach the purpose of improving door seal sealing performance, reducing cold air leakage.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a frozen display cabinet with a magnetic door seal. Background Technology

[0002] Refrigerated display cases are widely used in supermarkets, convenience stores, restaurants, and other environments for the low-temperature storage and display of frozen foods, beverages, and other goods. While ensuring food quality, they must also consider both display effectiveness and ease of use. Most existing refrigerated display cases use a double-door glass door structure, making it easy for users to observe and retrieve the items inside.

[0003] However, traditional refrigerated display cases still have several problems in actual use: First, the seal between the door and the cabinet mostly relies on rubber strips for compression sealing, which are prone to deformation or aging after long-term use, resulting in poor sealing and leakage of cold air. This not only affects the temperature stability inside the cabinet but also increases energy consumption. Second, some display cases lack monitoring and prompting functions for the door's closed status. When users do not close the door completely, the system cannot detect it in time. Prolonged opening or ajar door will lead to a large loss of cold air, reducing refrigeration efficiency and may even cause the compressor to start and stop frequently, shortening the equipment's lifespan. Third, the shelves inside the cabinet are mostly fixed or simple shelving structures. After items are placed inside, they are prone to tipping over or slipping due to vibration or handling, affecting the user experience and safety.

[0004] Therefore, it is necessary to design a freezer display case with a magnetic door seal to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing freezer display cabinets, such as poor door sealing, easy cold air leakage, lack of warning function for doors not being fully closed, and easy slippage of internal items, this utility model provides a freezer display cabinet with magnetic door seal.

[0006] A refrigerated display case with a magnetic door seal includes a display case body, casters, protective doors, handles, glass partitions, magnetic strips, rubber rings, a frame, mounting blocks, a filter screen, and a controller. Casters are installed at the four corners of the bottom of the display case body. Protective doors are rotatably connected to the left and right sides of the front of the display case body, with handles on the adjacent sides of the front of each protective door. A glass partition is embedded in the center of each protective door, and a rubber ring is embedded at the rear of each protective door, with a magnetic strip inside the rubber ring. A frame made of magnetically pleasing metal is installed inside the display case body. The front of the frame contacts and engages with the protective doors and the rubber ring, dividing the interior of the display case body into left and right chambers. Multiple mounting blocks are installed on the left and right side walls of the frame. A filter screen is installed between the tops of the mounting blocks at the same horizontal level, and protrusions on the mounting blocks are used to limit the position of the filter screen. A controller is located on the upper front of the display case body, integrating a timing function and a status judgment module.

[0007] In a preferred embodiment of this utility model, a pressure sensor is also included. Two pressure sensors are provided in the middle of the front side of the frame. The two pressure sensors are respectively set with the two protective doors. The pressure sensors are electrically connected to the controller.

[0008] In a preferred embodiment of the present invention, a limiting rod is also included, and the limiting rod is provided on the edge of the filter screen facing the operator.

[0009] In a preferred embodiment of the present invention, a lighting lamp is also included. The lighting lamp is provided on the side wall of the frame facing the protective door. The lighting lamp is located in front of the mounting block and illuminates the inside of the cabinet. The lighting lamp is electrically connected to the controller.

[0010] In a preferred embodiment of this utility model, an indicator light is also included. Two indicator lights are provided on the upper front side of the display cabinet body, located on the left and right sides of the controller respectively. When the protective door is closed, the corresponding indicator light displays green, and when it is open, it displays red. The indicator light is electrically connected to the pressure sensor.

[0011] In a preferred embodiment of the present invention, a buzzer is also included. Two buzzers are respectively disposed outside two indicator lights, and each buzzer is electrically connected to a pressure sensor on the corresponding side.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The present invention sets a rubber ring with an embedded magnetic strip on the back side of the protective door and cooperates with a frame made of magnetically attracted metal material to realize the automatic alignment and tight closing of the protective door by using magnetic attraction, thereby improving the sealing performance of the door seal and reducing the leakage of cold air.

[0013] 2. This utility model achieves the effect of automatically identifying the opening and closing status of the protective door and improving the intelligent control level of the equipment by setting a pressure sensor on the front side of the frame corresponding to the position of the protective door and electrically connecting it to the controller, thereby detecting the pressure signal when the door is closed in real time.

[0014] 3. This utility model sets indicator lights and buzzers on both sides of the controller. When the pressure sensor does not detect the closing pressure, it triggers the corresponding red indicator light to light up and the buzzer to sound an alarm, thus achieving the safety warning effect of timely reminding users to close the door properly and preventing cold loss and increased equipment energy consumption due to misoperation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a structural diagram of the display cabinet body, protective door, and lighting components of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the universal wheel, frame, and pressure sensor components of this utility model.

[0018] Figure 4 This is a structural schematic diagram of the glass partition, magnetic strip, and rubber ring components of this utility model.

[0019] Figure 5 This is a structural diagram of the controller, indicator light, buzzer, and other components of this utility model.

[0020] Figure 6 This is a structural diagram of the mounting block, filter screen partition, and limiting rod of this utility model.

[0021] The components in the attached diagram are labeled as follows: 1. Display case body, 2. Casters, 3. Protective door, 4. Handle, 5. Glass partition, 6. Magnetic strip ring, 7. Rubber ring, 8. Frame, 9. Mounting block, 10. Filter screen partition, 11. Limiting rod, 12. Lighting light, 13. Controller, 14. Indicator light, 15. Buzzer, 16. Pressure sensor. Detailed Implementation

[0022] Example: A freezer display case with a magnetic door seal, such as Figures 1-6As shown, the system includes a display case body 1, casters 2, protective doors 3, handles 4, glass partitions 5, magnetic strips 6, rubber rings 7, a frame 8, mounting blocks 9, a filter screen 10, and a controller 13. Casters 2 are installed at the four corners of the bottom of the display case body 1. Protective doors 3 are rotatably connected to the left and right sides of the front of the display case body 1, respectively. Handles 4 are located on the adjacent sides of the front of each protective door 3. A glass partition 5 is embedded in the middle of each protective door 3. A rubber ring 7 is embedded in the rear of each protective door 3, and a magnetic strip 6 is installed inside the rubber ring 7. A frame 8 is located inside the display case body 1. The frame 8 is made of magnetically adherable metal material. The front of the frame 8 contacts and engages with the protective doors 3 and the rubber ring 7, thus securing the display case body 1. The display cabinet is partially divided into two chambers, left and right. Multiple mounting blocks 9 are provided on the left and right side walls of the frame 8. A filter screen partition 10 is provided between the tops of the mounting blocks 9 at the same horizontal height. The mounting blocks 9 are provided with protrusions, and the filter screen partition 10 is provided with grooves that match the protrusions. When the filter screen partition 10 is placed on the mounting block 9, the protrusion is nested in the groove. The protrusion is used to limit the position of the filter screen partition 10 and achieve fixation. A controller 13 is provided on the upper front side of the display cabinet body 1. The controller 13 integrates a timing function and a status judgment module. It can determine whether the door has not been closed for a long time based on the length of time that the signal of the pressure sensor 16 has been continuously invalid. When the preset time is exceeded or an abnormal state such as the simultaneous opening of two doors is detected, the alarm program is activated.

[0023] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, it also includes pressure sensors 16, limit rods 11, lighting lamps 12, indicator lights 14, and buzzers 15. Two pressure sensors 16 are located in the middle of the front side of the frame 8, and each pressure sensor 16 is correspondingly positioned to one of the two protective doors 3. A limit rod 11 is located on the edge of the filter screen 10 facing the operator. The limit rod 11 is used to prevent adjacent items from falling due to vibration or tilting when items are picked up or placed. A lighting lamp 12 is located on the side wall of the frame 8 facing the protective door 3. The lighting lamp 12 is located in front of the mounting block 9 and illuminates the inside of the cabinet. The display cabinet body 1... Two indicator lights 14 are located on the upper front side, on the left and right sides of the controller 13 respectively. When the protective door 3 is closed, the corresponding indicator light 14 displays green, and when it is open, it displays red. Two buzzers 15 are located outside the two indicator lights 14 respectively. Each buzzer 15 is electrically connected to the pressure sensor 16 on the corresponding side. When the pressure sensor 16 does not detect pressure, the controller 13 controls the corresponding buzzer 15 to sound an alarm, prompting the user to close the protective door 3. The lighting 12, indicator lights 14, buzzers 15, and pressure sensors 16 are all electrically connected to the controller 13. The controller 13 is not fundamentally different from existing technology and will not be described in detail here.

[0024] In use, the operator opens either side of the protective door 3 by using handle 4. The protective door 3 rotates open around its rotating connection with the display cabinet body 1. The rubber ring 7 and the magnetic strip ring 6 embedded therein move synchronously with the protective door 3, disengaging from the magnetic contact with the front of the frame 8. At this time, the pressure sensor 16 on that side is not under pressure and sends an opening signal to the controller 13. The controller 13 starts the timing module to record the opening time. When the opening time exceeds the preset threshold, or when both protective doors 3 are open at the same time, the controller 13 determines it to be an abnormal working condition and controls the corresponding buzzer 15 to issue a continuous alarm to remind the user to close the protective door 3 in time.

[0025] When the protective door 3 is closed, the protective door 3 causes the rubber ring 7 and the magnetic strip ring 6 to adhere to the front side of the frame 8. The magnetic strip ring 6 and the magnetically attracted metal frame 8 generate a magnetic attraction force, realizing the automatic alignment and tight closure of the door. At the same time, the door presses the corresponding pressure sensor 16, and the pressure sensor 16 transmits the pressure signal to the controller 13. The controller 13 confirms that the door is closed, controls the corresponding indicator light 14 to switch to green, and the buzzer 15 stops the alarm.

[0026] The display case body 1 is internally divided into two chambers, left and right. Mounting blocks 9 in each chamber support filter partitions 10 for holding frozen items. The filter partitions 10 are breathable, facilitating cold air circulation. Protrusions on the mounting blocks 9 laterally limit the filter partitions 10, preventing them from slipping. A limiting rod 11 is located on the front of the filter partitions 10 to prevent items from tilting forward or sliding out. A lighting lamp 12 provides illumination inside the cabinet, facilitating observation of the stored items.

[0027] When both protective doors 3 are closed, the magnetic sealing structure effectively reduces cold air leakage and improves heat preservation performance; if either protective door 3 is not closed tightly, the corresponding pressure sensor 16 cannot detect sufficient pressure, the controller 13 continues to determine that the door is open, and maintains the red indicator light 14 and the buzzer 15 alarm until the door is completely closed.

[0028] In summary, this utility model achieves a good seal through a magnetic door seal structure, combines pressure sensing and controller 13 to realize real-time monitoring of door status, and alerts users with audible and visual alarms, thereby improving the energy efficiency, safety, and ease of use of the freezer display cabinet.

Claims

1. A freezer display case with a magnetic door seal, characterized in that: The system includes a display case body (1), casters (2), protective doors (3), handles (4), glass partitions (5), magnetic strips (6), rubber rings (7), a frame (8), mounting blocks (9), a filter screen partition (10), and a controller (13). Casters (2) are installed at the four corners of the bottom of the display case body (1). Protective doors (3) are rotatably connected to the left and right sides of the front of the display case body (1). Handles (4) are provided on the sides of the front of the protective doors (3) that are close to each other. A glass partition (5) is embedded in the middle of the protective door (3). A rubber ring (7) is embedded in the back of the protective door (3). A magnetic strip is installed inside the rubber ring (7). The display cabinet body (1) is equipped with a frame (8) made of magnetic metal material. The front side of the frame (8) is in contact with the protective door (3) and the rubber ring (7). The frame (8) divides the interior of the display cabinet body (1) into two chambers, left and right. Multiple mounting blocks (9) are provided on the left and right side walls of the frame (8). A filter screen partition (10) is provided between the tops of the mounting blocks (9) at the same horizontal height. The mounting blocks (9) are provided with protrusions for limiting the position of the filter screen partition (10). A controller (13) is provided on the upper front side of the display cabinet body (1). The controller (13) integrates a timing function and a status judgment module.

2. A freezer display case with a magnetic door seal according to claim 1, characterized in that: It also includes pressure sensors (16). Two pressure sensors (16) are provided in the middle of the front side of the frame (8). The two pressure sensors (16) are respectively set with the two protective doors (3). The pressure sensors (16) are electrically connected to the controller (13).

3. A freezer display case with a magnetic door seal according to claim 2, characterized in that: It also includes a limit rod (11), and the filter screen partition (10) has a limit rod (11) on the side edge facing the operator.

4. A freezer display case with a magnetic door seal according to claim 3, characterized in that: It also includes a lighting lamp (12). The lighting lamp (12) is provided on the side wall of the frame (8) facing the protective door (3). The lighting lamp (12) is located in front of the mounting block (9) and illuminates the inside of the cabinet. The lighting lamp (12) is electrically connected to the controller (13).

5. A freezer display case with a magnetic door seal according to claim 4, characterized in that: It also includes indicator lights (14). Two indicator lights (14) are provided on the upper front side of the display cabinet body (1), located on the left and right sides of the controller (13). When the protective door (3) is closed, the corresponding indicator light (14) displays green, and when it is open, it displays red. The indicator light (14) is electrically connected to the pressure sensor (16).

6. A freezer display case with a magnetic door seal according to claim 5, characterized in that: It also includes a buzzer (15), with two buzzers (15) located on the outside of two indicator lights (14), and each buzzer (15) is electrically connected to the pressure sensor (16) on the corresponding side.

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