CN204453327U - A kind of fresh storage cabinet - Google Patents

Abstract

The utility model provides a fresh storage cabinet, which comprises a cabinet body, a temperature adjustment device, a temperature control device, a circuit controller, a DC storage power supply and a power generation device; and a circuit controller, the DC storage power supply is also connected to the circuit controller, temperature control device and power generation device respectively; under the monitoring of the temperature control device, the circuit controller controls the internal temperature of the cabinet by the temperature adjustment device regulation is performed, and the power generating device charges the DC storage power supply. It can intelligently realize the multi-functional integration of heating, cooling, and heat preservation, and is highly efficient and energy-saving. It is suitable for placing outdoors, such as on open spaces in communities, etc., to ensure that fresh food is not limited by time and space, and to safely and effectively realize the "cold chain" of unmanned delivery. Home Delivery".

Description

fresh storage cabinet

technical field

The utility model relates to a fresh storage cabinet.

Background technique

With the development and progress of society, online consumption is quietly changing our purchasing behavior and consumption patterns. Today's online consumption has transitioned from early online purchases of books, electronics, clothing, and home appliances to online purchases of perishable foods such as organic food, vegetables, fruits, yogurt, and ice cream, and even essential medical supplies for the family. In this way, the matching "cold chain home delivery" industry became popular almost overnight. This is related to the fact that "online shopping" has become the main way of life for people.

"Cold chain home delivery" provides consumers with high-quality organic vegetables, meat, quick-frozen food, etc., allowing consumers to eat fresh vegetables, fruits, meat and other food from the field to the table without leaving home; "cold chain home delivery" guarantees Food quality, maintaining food freshness, reducing product damage and cost loss for food suppliers, retaining repeat customers, cultivating loyal customers; "cold chain home delivery" provides express and logistics providers with new sources of profit growth, opening up new business market. Now consumers, suppliers, and express logistics providers have all realized the benefits of cold chain home delivery. In China, compared with the fierce competition in the general logistics industry, cold chain logistics is still in the initial testing stage. Cold chain logistics companies currently generally operate B2B business, mainly for logistics distribution between suppliers and sales outlets, with very little home delivery business.

Although the "cold chain home delivery" market is popular and people from all walks of life are also very enthusiastic, some problems have plagued the development of "cold chain home delivery".

1. According to the survey data of the Chinese Society of Refrigeration, due to the lack of low-temperature guarantee, the "cold chain breaks" in the last mile of logistics distribution, that is, from the distribution point to the customer's home. Cause the quality of perishable food such as food, fruit, vegetable to be damaged. The problem of "broken chain" has caused consumers to be disappointed with "cold chain home delivery". Take pasteurized fresh milk as an example. Pasteurized fresh milk is stored in different conditions from normal temperature pure milk, so special care should be taken. After the pasteurized fresh milk is delivered to the milk box, it must be kept in the refrigerator in time to keep it fresh. If it is not put in the refrigerator in time, it may deteriorate if it is kept at room temperature for two or three hours. Especially after the weather turns hot, pasteurized fresh milk is more likely to deteriorate if it is "off-chain" (referring to leaving the cold chain storage condition of 2-6°C).

2. In the last mile cold chain delivery of "cold chain home delivery", there are usually various methods, some use ice cubes, some use ice trays with dry ice inside; even refrigerated and frozen boxes are used during delivery. It doesn't matter, just let it go. The distribution equipment still stays on the outdated fresh-keeping and cooling equipment such as foam boxes and cartons with water ice, and some do not even put ice cubes to cool down. Obviously, these devices cannot guarantee the freshness and quality of perishable foods such as ice cream, cakes, vegetables, and fruits.

3. Due to the accelerated work pace of modern personnel, more and more families leave early and return late. How to effectively ensure that fresh food is not limited by time and space, and safely and effectively realize unmanned delivery has become a bottleneck restricting the development of "cold chain home delivery".

"Cold chain home delivery" has become an inevitable direction for future development. The community is the main place where people live now. People have come up with various methods on how to use the community, property, cold chain transportation links, etc. to improve their living standards. In 2011, the patent No. CN200910091411.5 is a utility model patent, which relates to a foldable phase-change energy-storage refrigerator, which realizes the innovation of cold chain transportation link equipment. The patent No. CN201420337967 utility model disclosed on September 1, 2010 proposes a kind of airgel heat-insulation and anti-shock transportation incubator, which has a heating function and good heat preservation and shock-proof effects. Although these technologies solve certain problems theoretically, they only focus on the cold chain transportation link, and do not involve time and space constraints. Safe and effective realization of unmanned delivery has become a constraint for "cold chain home delivery". Accordingly, a more comprehensive control method for a community fresh storage cabinet system with high efficiency and energy saving that integrates heating, cooling, and heat preservation is proposed.

Utility model content

The technical problem to be solved by the utility model is to provide a fresh storage cabinet, which can intelligently realize the multi-functional integration of heating, cooling, and heat preservation, and is highly efficient and energy-saving. Fresh food is not limited by time and space, and the "cold chain home delivery" of unmanned delivery can be realized safely and effectively.

The technical problem to be solved by the utility model is achieved as follows: a fresh storage cabinet, including a cabinet body, a temperature adjustment device, a temperature control device, a circuit controller, a DC storage power supply and a power generation device; A temperature control device and a circuit controller are respectively connected to the cabinet, and the DC storage power supply is also respectively connected to a circuit controller, a temperature control device and a power generation device; under the monitoring of the temperature control device, the circuit controller controls The temperature regulating device regulates the internal temperature of the cabinet, and the generating device charges the DC storage power supply.

Further, the temperature adjustment device further includes a P-type semiconductor, an N-type semiconductor, a metal heat conduction plate outside the cabinet, a first metal heat conduction plate inside the cabinet, and a second metal heat conduction plate inside the cabinet, and the P-type semiconductor is installed in the cabinet body. The two ends of the outer wall are respectively connected to the metal heat conduction plate outside the cabinet and the first metal heat conduction plate, and the N-type semiconductor is penetrated on the outer wall of the cabinet and the two ends are respectively connected to the metal heat conduction plate outside the cabinet and the second metal heat conduction plate; and the second metal heat conduction plate in the cabinet Both the first metal heat conduction plate and the second metal heat conduction plate in the cabinet are connected to the circuit controller.

Further, the temperature control device further includes a temperature probe outside the cabinet, a temperature probe inside the cabinet, a temperature sensor, a temperature voltage controller, and a voltage sensor, and both the outside temperature probe and the temperature probe inside the cabinet are connected to the temperature sensor, and the temperature voltage The controller is respectively connected with the temperature sensor, the voltage sensor, the circuit controller and the DC storage power supply.

Further, the power generating device includes at least one of a solar power generating device and an electromagnetic wave energy generating device, the solar power generating device includes a photovoltaic module and a solar controller, and the photovoltaic module, the solar controller and a DC storage power supply are connected in sequence; The electromagnetic wave energy generating device includes a receiving antenna, a filter, and an electromagnetic wave energy controller, and the receiving antenna, filter, electromagnetic wave energy controller, and DC storage power supply are connected in sequence.

The utility model has the following advantages: the fresh storage cabinet of the utility model can intelligently realize the multi-functional integration of heating, cooling, and heat preservation, and can be charged by a solar power generation device or an electromagnetic wave power generation device for a DC power supply, and is suitable for being placed outdoors, such as a community space. On the ground, etc., to ensure that fresh food is not limited by time and space, and to safely and effectively realize the "cold chain home delivery" of unmanned delivery.

Description of drawings

The utility model will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the schematic diagram of the principle of the utility model fresh storage cabinet.

Fig. 2 is the structural representation of the cabinet body of the fresh storage cabinet of the present utility model

Fig. 3 is a control flowchart of the utility model fresh storage cabinet.

Detailed ways

Please refer to Fig. 1 and Fig. 2, the fresh storage cabinet of the present utility model includes a cabinet body 1, a temperature regulating device 2, a temperature control device 3, a circuit controller 4, a DC storage power supply 5 and a power generating device 6; The temperature regulating device 2 is arranged on the cabinet body 1 and is respectively connected to the temperature control device 3 and the circuit controller 4, and the said DC storage power supply 5 is also connected to the circuit controller 4, the temperature control device 3 and the power generation device 6 respectively. Under the monitoring of the temperature control device 3 , the circuit controller 4 controls the temperature adjustment device 2 to adjust the internal temperature of the cabinet 1 , and the power generation device 6 charges the DC storage power supply 5 .

The temperature adjustment device 2 further includes a P-type semiconductor 21, an N-type semiconductor 22, a metal heat conduction plate 23 outside the cabinet, a first metal heat conduction plate 24 in the cabinet, and a second metal heat conduction plate 25 in the cabinet. The P-type semiconductor 21 wears The two ends on the outer wall 12 of the cabinet body 1 are respectively connected to the metal heat conduction plate 23 outside the cabinet and the first metal heat conduction plate 24, and the N-type semiconductor 22 is installed on the outer wall 12 of the cabinet body 1. The two ends are respectively connected to the metal heat conduction plate outside the cabinet. 23 and the second metal heat conduction plate 25; and the first metal heat conduction plate 24 in the cabinet and the second metal heat conduction plate 25 in the cabinet are both connected to the circuit controller 4. In this way, when the N-type semiconductor 22 and the P-type semiconductor 21 are connected into a galvanic pair, after the DC storage power supply 5 provides the DC current for this circuit, energy transfer can be generated, and the current flows from the N-type semiconductor 22 to the P-type semiconductor 21. The joint of the P-type semiconductor 21 absorbs heat and becomes a cold end, and the joint that flows from the P-type semiconductor 21 to the N-type semiconductor 22 releases heat and becomes a hot end. Through the circuit controller 4, adjust the positive pole (or negative pole) of the DC storage power supply 5 to connect the N-type semiconductor 22 in the temperature regulating device 2 and the second metal heat conducting plate 25 in the cabinet, and the negative pole (or positive pole) to connect the P-type semiconductor 21 And the first metal heat conduction plate 24 in the cabinet, intelligently realize the multifunctional integration of heating, cooling and heat preservation.

The temperature control device 3 further includes a temperature probe 31 outside the cabinet, a temperature probe 32 inside the cabinet, a temperature sensor 33, a temperature voltage controller 34 and a voltage sensor 35, and the outside temperature probe 31 and the temperature probe 32 inside the cabinet are all connected to the temperature sensor 33 , the temperature and voltage controller 34 is respectively connected to the temperature sensor 33 , the voltage sensor 35 , the circuit controller 4 and the DC storage power supply 5 . The main function of the temperature and voltage controller 34 is to control the opening of the circuit controller 4 to realize the switching between positive and negative poles.

The power generating device 6 includes at least one of a solar power generating device 61 and an electromagnetic wave energy generating device 62 .

The solar power generation device 61 includes a photovoltaic module 611 and a solar controller 612, and the photovoltaic module 611, the solar controller 612 and the DC storage power supply 5 are connected in sequence; The solar energy controller 612 controls the generated electric energy to the required electric energy.

The electromagnetic wave energy generating device 62 includes a receiving antenna 621, a filter 622, and an electromagnetic wave energy controller 623, and the receiving antenna 621, the filter 622, the electromagnetic wave energy controller 623, and the DC storage power supply 5 are connected in sequence. The electromagnetic wave energy generating device 62 uses the electromagnetic wave to meet the receiving antenna 621 to excite an electric field around it, and forms an induced current when it encounters a closed circuit, and the filter 622 controls the induced current to the required electric energy.

As shown in Figures 1 to 3, the control flow of the fresh storage cabinet of the present utility model includes:

Step S1, setting the range of temperature T _in inside the cabinet 1 of the fresh storage cabinet as T ₁ to T ₂ , the temperature outside the cabinet 1 as T _out , and the minimum protection voltage of the DC storage power supply 5 as V ₀ ;

Step S2, the temperature control device 3 continuously detects the voltage V of the DC storage power supply 5, and when V≥V ₀ , proceed to Step S3, and when V<V ₀ , proceed to Step S4; wherein, the DC storage power supply The voltage V of 5 is detected by the voltage sensor 35;

Step S3, the temperature control device 3 continuously detects the temperature T _in and T _out inside and outside the cabinet; wherein, the temperature T _in and T _{out inside and outside} the cabinet are determined by the temperature probe 31 outside the cabinet, the temperature inside the cabinet Temperature probe 32 detects;

If T _in =T _out , the fresh storage cabinet system does not work;

If T _in > T _out or T _in < T _out :

a), when T _in > T ₂ , the temperature control device 3 turns on the circuit controller 4, and the temperature in the cabinet 1 is reduced by the temperature control device 2; specifically, the temperature is given by the temperature sensor 33 A signal command from the voltage controller 34, and then the circuit controller 4 is turned on by the temperature and voltage controller 34, so that the positive pole of the DC storage power supply 5 is connected to the N-type semiconductor 22 in the temperature adjustment device 2 and the second metal heat conduction in the cabinet. Plate 25, the negative electrode is connected to the P-type semiconductor 21 and the first metal heat conducting plate 24 in the cabinet. The node temperature between a metal heat conducting plate 24 and the second metal heat conducting plate 25 in the cabinet is lowered, thereby reducing the temperature in the cabinet;

b), when T _in < T ₁ , the temperature control device 3 turns on the circuit controller 4, and the temperature in the cabinet is raised through the temperature control device 2; specifically, the temperature sensor 33 gives the temperature voltage The controller 4 gives a signal command, and then the temperature and voltage controller 34 opens the circuit controller 4, so that the positive pole of the DC storage power supply 5 is connected to the P-type semiconductor 21 in the temperature adjustment device 2 and the first metal heat conducting plate 24 in the cabinet , the negative pole is connected to the N-type semiconductor 22 and the second metal heat conduction plate 25 in the cabinet. Under the action of the electric field, the temperature difference between the inside and outside of the cabinet is used to make the P-type semiconductor 21 and the N-type semiconductor 22 in the cabinet respectively connected to the first metal heat-conducting plate in the cabinet. The node temperature between the heat conduction plate 24 and the second metal heat conduction plate 25 in the cabinet rises, thereby increasing the temperature in the cabinet;

c) When T ₁ <T _in <T ₂ , the temperature control device 3 turns on the circuit controller 4, so that the DC storage power supply 5 is disconnected from the temperature adjustment device 2, that is, the temperature adjustment device 2 does not work Specifically, the temperature and voltage controller 4 is given a signal instruction by the temperature sensor 33, and then the circuit controller 4 is opened by the temperature and voltage controller 34, so that the positive pole and the negative pole of the DC storage power supply 5 are disconnected and the temperature is adjusted simultaneously. The connection of the first metal heat conduction plate 24 in the cabinet and the second metal heat conduction plate 25 in the cabinet in the device 2, that is, the temperature adjustment device 2 does not work;

Step S4, the temperature control device 3 continuously detects the voltage V of the DC storage power supply 5, and when V<V ₀ , the temperature control device 3 turns on the circuit controller 4, so that the DC storage power supply 5 is disconnected and the temperature is adjusted The connection of the first metal heat conduction plate 24 and the second metal heat conduction plate 25 in the cabinet of the device 2, that is, the temperature adjustment device 2 does not work; the DC storage power supply 5 is charged by the power generation device 6, which can be charged by the solar power generation device 61 or the electromagnetic wave generator 62 charges the DC power supply; or the solar generator 61 and the electromagnetic wave generator 62 charge the DC power supply 5 at the same time.

The fresh storage cabinet of the utility model can intelligently realize the multi-functional integration of heating, cooling, and heat preservation. The DC power supply is charged by a solar power generation device or an electromagnetic wave power generation device. Unlimited by time and space, the "cold chain home delivery" of unmanned delivery can be realized safely and effectively.

Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that the specific embodiments we describe are only illustrative, rather than used to limit the scope of the present utility model. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present utility model shall fall within the protection scope of the claims of the present utility model.

Claims (5)

1. a fresh storage cabinet, is characterized in that: comprise cabinet, temperature control equipment, attemperating unit, circuit controller, direct current storage power and power generation assembly; Described temperature control equipment is located on cabinet and connects attemperating unit and circuit controller respectively, and described direct current storage power also distinguishes junction circuit controller, attemperating unit and power generation assembly; Under the monitoring of described attemperating unit, the internal temperature of described circuit controller control temperature control apparatus to cabinet regulates, and described power generation assembly charges to direct current storage power.

2. the fresh storage cabinet of one according to claim 1, it is characterized in that: described temperature control equipment to comprise in P-type semiconductor, N-type semiconductor, the outer metal guide hot plate of cabinet, cabinet the second metal guide hot plate in the first metal guide hot plate and cabinet further, described P-type semiconductor is located in the two ends outer metal guide hot plate of connecting cabinet and the first metal guide hot plate respectively on cabinet outer wall, and described N-type semiconductor is located in the two ends outer metal guide hot plate of connecting cabinet and the second metal guide hot plate respectively on cabinet outer wall; And the first metal guide hot plate is all connected described circuit controller with the second metal guide hot plate in cabinet in cabinet.

3. the fresh storage cabinet of one according to claim 1 and 2, it is characterized in that: described attemperating unit comprises cabinet outer temp probe, in-cabinet temperature probe, temperature sensor, temperature voltage controller and voltage sensor further, described outer temp probe is all connected temperature sensor with in-cabinet temperature probe, and described temperature voltage controller connects temperature sensor, voltage sensor, circuit controller and direct current storage power respectively.

4. the fresh storage cabinet of one according to claim 1, is characterized in that: described power generation assembly comprises at least one of device of solar generating and electromagnetism Wave energy electric generator.

5. the fresh storage cabinet of one according to claim 4, is characterized in that:

Described device of solar generating comprises photovoltaic module and controller for solar, and described photovoltaic module, controller for solar and direct current storage power connect successively;

Described electromagnetism Wave energy electric generator comprises receiving wire, filter and electromagnetism wave energy controller, and described receiving wire, filter, electromagnetism wave energy controller and direct current storage power connect successively.