Cold storage equipment

Abstract

The utility model relates to the technical field of electrical equipment, and discloses a cold storage device which comprises a box body, a pressure detection device, a display device and a control device, the box body is provided with a refrigeration chamber, the pressure detection device is electrically connected with the control device, the pressure detection device is arranged in the box body and used for detecting air pressure in the refrigeration chamber, and the display device is electrically connected with the control device. The pressure signal is transmitted to the control device, the control device is electrically connected with the display device, and the display device is used for displaying pressure information corresponding to the pressure signal. The air pressure in the refrigeration chamber is detected through the pressure detection device, a pressure signal is transmitted to the control device, the control device receives the pressure signal and controls the display device to display corresponding pressure information, and after a user sees the pressure information on the display device, the display device displays the corresponding pressure information. Therefore, the negative pressure condition in the refrigeration chamber can be known, the negative pressure condition in the refrigeration chamber is concrete and visualized, a user can use the refrigeration chamber conveniently, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a cold storage device. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] Refrigerators and other cold storage equipment can be used to refrigerate or freeze various items. With the rapid development of the biotechnology and medical industries, the need for low-temperature refrigerators for the long-term storage of biological and medical samples, reagents, and other biological materials is increasing. These low-temperature refrigerators generally require storage temperatures below -40°C and stable refrigeration systems to achieve long-term reliable storage of biological materials.

[0004] When users use a low-temperature refrigerator, due to the low temperature, a large negative pressure will appear after the refrigerator door is closed after taking out items. If the user tries to use the refrigerator again before the air pressure inside the refrigerator is balanced, the door cannot be opened. At this time, the user needs to try to open the door multiple times until the air pressure inside the refrigerator is balanced with the outside air pressure before the door can be opened again, resulting in a poor user experience. Utility Model Content

[0005] The purpose of this invention is to at least solve the problem of users having to attempt to open the door multiple times when the negative pressure inside the cold storage equipment is high, resulting in a poor user experience. This purpose is achieved through the following technical solution:

[0006] This utility model proposes a cold storage device, including: a box, a pressure detection device, a display device, and a control device;

[0007] The enclosure has a refrigeration chamber. The pressure detection device and the control device are electrically connected. The pressure detection device is installed in the enclosure and is used to detect the air pressure in the refrigeration chamber and transmit the pressure signal to the control device. The control device is electrically connected to the display device and is used to display the pressure information corresponding to the pressure signal.

[0008] This utility model's cold storage equipment incorporates a pressure detection device, a display device, and a control device. The pressure detection device monitors the air pressure inside the refrigeration chamber and transmits the pressure signal to the control device. The control device receives the pressure signal and controls the display device to show the corresponding pressure information. By viewing the pressure information on the display device, the user can determine if there is negative pressure inside the refrigeration chamber. Once the pressure information returns to normal, the user knows that the negative pressure has disappeared and the cold storage equipment can be turned on for normal use. This makes the negative pressure situation inside the refrigeration chamber more concrete and visual, facilitating user operation and improving the user experience.

[0009] In addition, the cold storage device according to this utility model may also have the following additional technical features:

[0010] In some embodiments of this utility model, the signal input terminal of the control device is connected to the signal output terminal of the pressure detection device, and the signal output terminal of the control device is connected to the signal input terminal of the display device. The control device is used to receive the pressure signal.

[0011] In some embodiments of this utility model, the cold storage device further includes a reminder device, which is electrically connected to the pressure detection device and the control device respectively, and issues a reminder instruction based on the pressure detected by the pressure detection device.

[0012] In some embodiments of this utility model, the pressure detection device includes a pressure sensor, which is disposed in the housing, and the detection end of the pressure sensor is connected to the refrigeration chamber.

[0013] In some embodiments of this utility model, the pressure detection device further includes a connecting pipe, which is disposed on the housing and communicates with the refrigeration chamber, and the pressure sensor is disposed on the connecting pipe.

[0014] In some embodiments of this utility model, the reminder device includes a light reminder component, which is disposed in the housing and is used to emit a light reminder.

[0015] In some embodiments of this utility model, the reminder device includes a sound reminder component, which is disposed in the housing and is used to emit a sound reminder.

[0016] In some embodiments of this utility model, the reminder device includes an action reminder component, which is disposed in the housing and is used to provide an action reminder.

[0017] In some embodiments of this utility model, the cold storage equipment further includes a door and a door lock device. The door is rotatably mounted on the housing to open and close the refrigeration compartment. The door lock device is disposed on the door or the housing and is used to lock the housing and the door. The door lock device is signal-connected to the control device, and the control device is used to control the locking or unlocking of the door lock device according to the pressure signal.

[0018] In some embodiments of this utility model, the door lock device includes a door lock body, which is disposed on the door body. A locking member and a driving member for driving the locking member are disposed inside the door body, and the driving member is electrically connected to the control device.

[0019] In some embodiments of this utility model, the cold storage device further includes a power supply device for supplying power to the pressure detection device, the display device, and the control device.

[0020] In some embodiments of this utility model, the cold storage device further includes a storage device, which is electrically connected to the pressure detection device and the control device respectively. The storage device is used to store the data detected by the pressure detection device and send it to the control device. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 A schematic diagram of the structure of a cold storage device according to an embodiment of the present invention is shown.

[0023] Figure 2 A schematic diagram illustrating the connection of various components of a cold storage device according to one embodiment of the present invention is shown.

[0024] Figure 3 A schematic diagram illustrating the connection of various components of a cold storage device according to another embodiment of the present invention is shown.

[0025] Figure 4 A schematic diagram illustrating the connection of the components of a cold storage device according to another embodiment of the present invention is shown.

[0026] The attached figures are labeled as follows:

[0027] 100. Cold storage equipment;

[0028] 1. Cabinet; 11. Refrigeration compartment;

[0029] 2. Pressure detection device; 21. Pressure sensor; 22. Connecting pipe;

[0030] 3. Door body;

[0031] 4. Control device;

[0032] 5. Reminder device;

[0033] 6. Display device;

[0034] 7. Door locking device;

[0035] 8. Power supply device;

[0036] 9. Storage device;

[0037] 10. Button device. Detailed Implementation

[0038] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0039] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0040] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0041] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0042] Low-temperature refrigerators typically have a temperature range of -40℃ to -86℃. When storing or retrieving items, the refrigerator door must be opened. Once the door is open, the interior is connected to the outside environment, allowing for air exchange between the cold interior and warm exterior air. The denser, colder air flows out quickly, while the warmer, less dense air enters. Due to the extremely low temperature and significant temperature difference between the inside and outside of a low-temperature refrigerator, the air exchange rate is much higher than in a regular refrigerator. Furthermore, when the refrigerator is closed, the entire interior becomes a sealed environment. The incoming air cools and contracts, creating a significant negative pressure inside the refrigerator, which can cause the door to close due to atmospheric pressure, preventing it from opening for a short period.

[0043] If a user tries to use a refrigerator again before the internal air pressure is balanced, the door cannot be opened. Since it is impossible to know when the internal air pressure will be balanced, the user has to wait next to the refrigerator and keep trying to open the door until the internal air pressure is balanced with the external air pressure. This causes inconvenience to the user and results in a poor user experience.

[0044] However, low-temperature refrigerators in related technologies often lack effective pressure warning devices, failing to promptly inform users of changes in internal pressure, thus causing inconvenience to users.

[0045] In view of this, this embodiment provides a cold storage device 100, which aims to solve the above-mentioned technical problems by using a pressure detection device 2, a display device 6, and a control device 4. The control device 4 receives the pressure signal detected by the pressure detection device 2 and controls the display device to display the pressure information corresponding to the pressure signal, so as to facilitate user use, improve user experience, and solve the above-mentioned technical problems.

[0046] like Figures 1 to 4As shown, according to an embodiment of the present invention, a cold storage device 100 is proposed. The cold storage device 100 can be a low-temperature refrigerator, freezer, or other similar equipment. In this embodiment, the cold storage device 100 is a low-temperature refrigerator. The cold storage device 100 includes a housing 1, a pressure detection device 2, a display device 6, and a control device 4.

[0047] The cabinet 1 contains a refrigeration compartment 11 with a first opening. A door 3 is hinged to the cabinet 1 and is closable at the first opening to open or close the refrigeration compartment 11. The refrigeration compartment 11 contains multiple interconnected storage rooms, each with a second opening and a hinged door. Each storage room can be opened or closed. Each storage room can serve as an independent storage space for storing items.

[0048] The pressure detection device 2 is installed on the cabinet 1 or the door 3, and the specific location can be selected according to the actual design requirements. The pressure detection device 2 is connected to the refrigeration compartment 11 and is electrically connected to the control device 4. The pressure detection device 2 is used to detect the air pressure in the refrigeration compartment 11 and transmit the pressure signal to the control device 4. The control device 4 is electrically connected to the display device 6 and is used to control the display device 6 to display the pressure information corresponding to the pressure signal.

[0049] The cold storage equipment 100 of this utility model is equipped with a pressure detection device 2, a display device 6, and a control device 4. The pressure detection device 2 detects the air pressure in the refrigeration chamber 11 and transmits the pressure signal to the control device 4. The control device 4 receives the pressure signal and controls the display device 6 to display the corresponding pressure information. After the user sees the pressure information on the display device 6, he / she can know that there is negative pressure in the refrigeration chamber 11. After the pressure information display returns to normal, the user can know that the negative pressure has disappeared, and the cold storage equipment 100 can be turned on and used normally. The negative pressure situation in the refrigeration chamber 11 is made concrete and visible, which is convenient for users and improves the user experience.

[0050] In some embodiments of this utility model, the signal input terminal of the control device 4 is connected to the signal output terminal of the pressure detection device 2, and the signal output terminal of the control device 4 is connected to the signal input terminal of the display device 6. The control device 4 is used to receive pressure signals.

[0051] The control device 4 receives a pressure signal and determines whether there is negative pressure in the refrigeration chamber 11 based on the pressure signal. Specifically, by preset a pressure threshold according to the normal pressure range of the refrigeration chamber 11, if the pressure detection device 2 detects that the pressure in the refrigeration chamber 11 is lower than the pressure threshold, it can be determined that there is negative pressure in the refrigeration chamber 11; otherwise, it can be determined that there is no negative pressure in the refrigeration chamber 11.

[0052] When negative pressure exists in the refrigeration chamber 11, the control display device 6 displays the remaining time for the negative pressure to disappear. The pressure detection device 2 monitors pressure changes in real time and calculates the time required for the negative pressure to return to normal. Specifically, the control device 4 records the start time of the negative pressure using its built-in timing function or an external time recording module. The pressure detection device 2 monitors the pressure value in real time. When the pressure returns to normal, the control device 4 calculates the elapsed time. If the pressure remains within the negative pressure range, the control device 4 calculates the pressure change rate based on the two most recent pressure values ​​and the time interval. The remaining time for the negative pressure to disappear is estimated based on the current pressure and the pressure change rate.

[0053] In some embodiments of this utility model, the cold storage device 100 further includes a reminder device 5, which is electrically connected to the pressure detection device 2 and the control device 4 respectively. The reminder device 5 issues a reminder instruction based on the pressure detected by the pressure detection device 2.

[0054] Specifically, the control device 4 can be configured as a microcontroller or a single-chip microcomputer, and the reminder device 5 can be integrated into the display device 6 to provide reminders through pop-ups and flashing on the display screen. It can also be configured as one or more of a light reminder component, a sound reminder component, and an action reminder component.

[0055] Among them, the pop-up reminder is a pop-up window displayed on the screen. The content can be text or graphics. Users can know the negative pressure in the cooling room 11 by seeing the reminder pop-up window on the screen.

[0056] The lighting indicator is installed on the side wall of the enclosure 1, in a prominent and easily observable position for user convenience. The indicator includes a mounting plate and multiple LEDs. The mounting plate, made of plastic or metal, is installed along the height of the enclosure 1 and possesses good insulation and mechanical strength. Multiple LEDs, preferably LEDs, are spaced apart along the length of the mounting plate due to their low power consumption, high brightness, and long lifespan. The number and spacing of the LEDs can be designed according to specific alerting requirements. During operation, when the pressure detection device 2 detects negative pressure within the refrigeration compartment 11, the controller activates the LEDs, alerting the user to the presence of significant negative pressure within the enclosure 1, preventing the door 3 from being opened.

[0057] In some embodiments, a light sensor may be integrated into the mounting plate to automatically adjust the brightness of the LED beads according to the ambient light intensity, thereby improving the applicability of the light reminder component.

[0058] The sound alert component is installed on the enclosure 1 or door 3, positioned to ensure clear sound transmission. For example, in the cold storage equipment 100, the sound alert component can be installed on the top or side of the enclosure 1 to alert the user of abnormal internal pressure. The sound alert component can be a buzzer or a speaker. Buzzers are small and consume little power, making them suitable for small equipment; speakers provide clearer sound alerts, suitable for large equipment or situations requiring a greater alert distance. The volume of the sound alert component can be adjusted according to the actual usage environment. For example, in a quiet laboratory environment, the volume can be set to a moderate level; in a noisy industrial environment, the volume can be appropriately increased. When the pressure detection device 2 detects negative pressure inside the refrigeration compartment 11, the controller controls the sound alert component to emit a sound alert via a buzzer or speaker. The frequency and volume of the sound alert can be adjusted according to actual needs. For example, it can be set to emit a sound alert once per second, with a volume loud enough to attract the user's attention.

[0059] The action alert component can be a mechanical device that alerts the user when the pressure detection device 2 detects negative pressure inside the housing 1 through a specific action (such as vibration or popping). Specifically, the action alert component can be a vibrator or a mechanical indicator. A vibrator alerts the user through vibration and is suitable for situations requiring alerts in noisy environments; a mechanical indicator can visually display abnormal pressure conditions through mechanical actions, such as a rotating fan blade.

[0060] The motion alert component is installed on the cabinet 1 or door 3, positioned so that the user can perceive the motion alert. For example, in the cold storage equipment 100, a vibrator can be installed on the handle of the door 3, so that the user can feel the vibration alert when opening the door 3 when the pressure is abnormal; a mechanical indicator can be installed on the side or front of the cabinet 1 so that the user can clearly see the alert. By setting up the motion alert component, it is particularly suitable for scenarios that need to be used in noisy environments or where the user has limited hearing, alerting the user to the existence of negative pressure in the refrigeration compartment 11 through vibration or mechanical movement, thus improving the applicability of the pressure alert device.

[0061] The light alert component, sound alert component, and motion alert component can be used independently or in combination to achieve multi-dimensional alerts, ensuring that users can perceive the alerts in different environments (such as noisy environments).

[0062] In some embodiments of this utility model, the pressure detection device 2 includes a pressure sensor 21 and a connecting pipe 22. The connecting pipe 22 is disposed on the housing 1 and communicates with the refrigeration chamber 11, and the pressure sensor 21 is disposed on the connecting pipe 22.

[0063] Specifically, mounting holes are provided on the side wall of the housing 1, and the connecting pipe 22 passes through the mounting holes to be installed on the side wall of the housing 1. The pressure sensor 21 is connected to the refrigeration chamber 11 through the connecting pipe 22. The material of the connecting pipe 22 must have good pressure resistance and corrosion resistance, such as high borosilicate glass tube, copper tube, or stainless steel tube. The connecting pipe 22 is fixed to the housing 1 by a sealing element (such as a rubber sealing ring) and is connected to the refrigeration chamber 11. The sealing element should be made of low-temperature resistant and aging-resistant material to ensure the sealing between the connecting pipe 22 and the housing 1 and prevent cold air leakage in the refrigeration chamber 11. The inner diameter and length of the connecting pipe 22 should be designed according to the wall thickness of the housing 1, the flow rate and pressure loss requirements of the refrigeration system to ensure accurate transmission of pressure signals and improve the accuracy of pressure detection.

[0064] In some embodiments, to avoid the influence of pressure fluctuations within the connecting pipe 22 on the measurement results, a buffer device, such as a small airbag or spring damper, can be provided on the connecting pipe 22. The buffer device can absorb some of the pressure fluctuations, enabling the pressure sensor 21 to stably detect the actual pressure.

[0065] In some embodiments of this utility model, the cold storage equipment 100 further includes a door lock device 7, which is disposed on the door 3 or the housing 1. The door lock device 7 is used to lock the housing 1 and the door 3. The door lock device 7 is signal-connected to the control device 4, which is used to control the locking or unlocking of the door lock device 7 according to a pressure signal. When the control device 4 determines that the door 3 needs to be locked according to the pressure signal, the control device 4 sends a locking command to the drive component, which drives the locking component to extend and lock the door 3. When the door 3 needs to be unlocked, the control device 4 sends an unlocking command to the drive component, which drives the locking component to retract and open the door 3.

[0066] In some embodiments of this utility model, the door lock device 7 includes a door lock body, which is disposed on the door body 3. The door body 3 is provided with a locking component and a driving component for driving the locking component. The driving component is electrically connected to the control device 4.

[0067] The door lock body is installed on the outside of the door 3 to realize the locking and unlocking operation of the door 3. The door lock body is equipped with a fingerprint reader or camera, etc., and users can unlock the door by fingerprint or facial recognition.

[0068] The locking element is installed inside the door body 3 to achieve physical locking of the door body 3. The locking element can be a lock tongue, a lock bolt or other similar mechanical structure.

[0069] The driving component is used to drive the extension or movement of the locking component, thereby locking or unlocking the door 3. The driving component can be a motor, electromagnet or other driving device. The driving component is connected to the control device 4 through an electrical connection, receives the instructions of the control device 4, and controls the action of the locking component.

[0070] When the cold storage unit 100 is working, the pressure detection device 2 monitors the pressure inside the refrigeration compartment 11 in real time and transmits the pressure signal to the control device 4. The control device 4 determines whether the door lock device 7 needs to be locked or unlocked based on a preset pressure threshold. When the pressure inside the refrigeration compartment 11 is detected to be negative, the control device 4 controls the door lock device 7 to lock the door 3. After receiving the instruction, the electromagnetic lock inside the door lock device 7 is energized and engaged (or the motor drives the locking mechanism to operate), causing the latch to extend or the latch to lock, thereby firmly locking the door 3 onto the unit and preventing the door from being accidentally opened and refusing user access. When the pressure inside the refrigeration compartment 11 is normal, the control device 4 controls the door lock device 7 to unlock the door 3. After receiving the instruction, the electromagnetic lock is de-energized and released (or the motor drives the unlocking mechanism to operate), causing the latch to retract or the latch to loosen, thereby releasing the lock on the door 3 and allowing the door 3 to be opened for normal user use.

[0071] After completing the locking or unlocking action, the door lock device 7 may send a feedback signal to the control device 4 to confirm the execution of the action. The control device 4 can further adjust the control logic or perform fault diagnosis based on the feedback signal. At the same time, the control device 4 can also upload pressure monitoring data and door lock status information to the management server or display them on the operation interface for users to monitor in real time.

[0072] In some embodiments of this utility model, the cold storage device 100 further includes a power supply device 8, which is used to supply electrical signals to the pressure detection device 2, the display device 6 and the control device 4.

[0073] Specifically, the power supply unit 8 provides a stable power supply to the pressure sensor 21 and the display screen. When the pressure sensor 21 detects that the air pressure value is lower than the preset pressure threshold, the control device determines that there is negative pressure in the refrigeration chamber 11, thereby controlling the light reminder component to emit an indicator light. The power supply unit 8 will provide sufficient power to the light reminder component so that it can emit an indicator signal normally.

[0074] The power supply unit 8 is installed inside or outside the enclosure 1, and its location must ensure a reasonable and safe layout of the power lines. For example, in the cold storage equipment 100, the power supply unit 8 can be installed at the bottom or side of the enclosure 1. The connection between the power supply unit 8 and the pressure detection device 2, display device 6, and control device 4 must ensure the reliability and safety of the electrical connection. The connection lines must use appropriate wire diameters and insulation materials to avoid short circuits or leakage. Simultaneously, fuses or overcurrent protection devices can be installed in the connection lines to protect the pressure detection device 2, display device 6, and control device 4 from overcurrent damage.

[0075] In some embodiments, to ensure the stable operation of the power supply device 8, protection and monitoring measures need to be implemented. For example, overvoltage protection, undervoltage protection, and overcurrent protection circuits can be set in the power supply device 8. When the power supply voltage is too high, too low, or the current is too high, the protection circuit can cut off the power supply in time to protect the safety of the equipment.

[0076] In addition, a monitoring circuit can be installed in the power supply unit 8 to monitor parameters such as voltage, current, and temperature in real time. The monitoring circuit can display the power supply status information through indicator lights or a display screen, allowing users to understand the operating status of the power supply unit 8 in a timely manner.

[0077] In some embodiments of this utility model, the cold storage device 100 further includes a storage device 9, which is electrically connected to the pressure detection device 2 and the control device 4. The storage device 9 is used to store the data detected by the pressure detection device 2 and send it to the control device 4.

[0078] Specifically, the storage device 9 includes a storage chip and a data management circuit. The storage chip can use a non-volatile storage medium, such as a flash memory chip, which can store data for a long time and will not lose data even after the device is powered off. The data management circuit is responsible for reading and writing operations to the storage chip, storing the pressure data detected by the pressure detection device 2 into the storage chip, and sending the data to the control device 4 according to the instructions of the control device 4. The control device 4 analyzes and processes the stored data to calculate the pressure change rate based on the two most recent pressure values ​​and the time interval; and estimates the remaining time for the negative pressure to disappear based on the current pressure and the pressure change rate.

[0079] In some embodiments, the cold storage device 100 further includes a button device 10, which is electrically connected to the display device 6 and the control device 4. The button device 10 is used to transmit operation commands for the cold storage device 100 to the control device 4.

[0080] Specifically, the button device 10 is connected to the input port of the control device 4 via wires, typically using a parallel or serial communication interface. For example, it can be connected to the microcontroller of the control device 4 using GPIO (General Purpose Input / Output) pins. The display device 6 is connected to the output port of the control device 4 via data lines, and is used to receive display commands sent by the control device 4 and display relevant information.

[0081] The button device 10 is used to receive user operation commands for the cold storage equipment 100. This module includes multiple function buttons and a button scanning circuit. The function buttons are integrated on the display device 6 or located on the control panel of the cold storage equipment 100. Users can input various operation commands through the buttons, such as setting temperature and pressure, querying equipment status, unlocking door 3, and canceling reminder signals. The button scanning circuit monitors the status of the buttons in real time. When a user presses a button, the button scanning circuit converts the button signal into an electrical signal and transmits it to the control device 4. The control device 4 executes the corresponding operation command based on the received button signal, such as adjusting temperature and pressure, displaying equipment status, or controlling the unlocking of door lock device 7.

[0082] Taking the adjustment of the temperature of a cold storage device as an example: The user presses the "Temperature Adjustment" button on the button device 10; the button device 10 detects the button action, generates a temperature adjustment command code after debouncing, and transmits it to the control device 4 through the communication interface; after receiving the command code, the control device 4 parses it to determine that it is a temperature adjustment command, and adjusts the cooling or heating power of the cold storage device according to the command to change the temperature; the control device 4 sends the current set temperature information to the display device 6; after receiving the display command, the display device 6 displays the current set temperature on the display screen, and the user can see the result after the temperature adjustment.

[0083] When the cold storage equipment 100 is operating, the power supply unit 8 provides power to all devices. The control unit 4 initializes each device, and the pressure detection unit 2 begins real-time monitoring of the pressure inside the refrigeration compartment 11. The pressure detection unit 2 transmits the detected pressure signal to the control unit 4. The control unit 4 determines whether the pressure is normal based on a preset pressure threshold. If the pressure is less than the set value, it is determined that there is negative pressure inside the refrigeration compartment 11. The control unit 4 sends a locking command to the drive component of the door lock device 7. The drive component drives the locking component to extend, locking the door 3 to prevent the user from opening the door. If the pressure reaches the set value, it is determined that the negative pressure has disappeared. The control unit 4 sends an unlocking command to the drive component. The drive component drives the locking component to retract, unlocking the door 3 and allowing the user to open the door. The pressure detection unit 2 periodically sends the detected pressure data to the storage device 9. The storage device 9 stores the data in a storage chip. The control unit 4 can read the pressure data from the storage device 9 at any time to analyze the operating status of the equipment. Users input operation commands via button device 10, such as setting pressure thresholds or querying equipment status. Button device 10 transmits button signals to control device 4, which executes the corresponding operations according to the commands and displays the equipment status to the user via display device 6.

[0084] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A cold storage device, characterized by, The cold storage device comprises a box body, a pressure detection device, a display device and a control device. The box body has a refrigeration compartment, the pressure detection device and the control device are electrically connected, the pressure detection device is arranged on the box body, the pressure detection device is used for detecting the air pressure in the refrigeration compartment and transmitting a pressure signal to the control device, the control device is electrically connected with the display device, and the display device is used for displaying pressure information corresponding to the pressure signal. The signal input end of the control device is connected with the signal output end of the pressure detection device, the signal output end of the control device is connected with the signal input end of the display device, and the control device is used for receiving the pressure signal.

2. The cold storage device according to claim 1, characterized by The cold storage device further comprises a reminding device, the reminding device is electrically connected with the pressure detection device and the control device respectively, and the reminding device sends a reminding instruction according to the pressure detected by the pressure detection device.

3. The cold storage device according to claim 1, characterized by The pressure detection device comprises a pressure sensor, the pressure sensor is arranged on the box body, and a position where a detection end of the pressure sensor is located is communicated with the refrigeration compartment.

4. The cold storage device according to claim 1, characterized by The pressure detection device further comprises a connecting pipe, the connecting pipe is arranged on the box body and is communicated with the refrigeration compartment, and the pressure sensor is arranged on the connecting pipe.

5. The cold storage device according to claim 4, characterized by The reminding device comprises a light reminding assembly, the light reminding assembly is arranged on the box body and is used for sending light reminding.

6. The cold storage device according to claim 3, characterized by The reminding device comprises a sound reminding assembly, the sound reminding assembly is arranged on the box body and is used for sending sound reminding.

7. The cold storage device according to claim 3, characterized by The reminding device comprises a motion reminding assembly, the motion reminding assembly is arranged on the box body and is used for making motion reminding.

8. The cold storage device according to claim 3, characterized by The cold storage device further comprises a door body and a door lock device, the door body is rotatably installed on the box body to open and close the refrigeration compartment, the door lock device is arranged on the door body or the box body, the door lock device is used for locking the box body and the door body, the door lock device is signal-connected with the control device, and the control device is used for controlling locking or unlocking of the door lock device according to the pressure signal.

9. The cold storage device according to any one of claims 1 to 8, characterized by, The door lock device comprises a door lock body, the door lock body is arranged on the door body, a locking piece and a driving piece for driving the locking piece to move are arranged in the door body, and the driving piece is electrically connected with the control device.

10. The cold storage device according to claim 9, characterized by The cold storage device further comprises a power supply device, the power supply device is used for supplying power to the pressure detection device, the display device and the control device.

11. The cold storage device according to any one of claims 1 to 8, characterized by, The cold storage device further comprises a storage device, the storage device is electrically connected with the pressure detection device and the control device respectively, and the storage device is used for storing data detected by the pressure detection device and sending the data to the control device.

12. The cold storage device according to any one of claims 1 to 8, characterized by, ​

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