Cold chain vehicle refrigeration unit cold air distribution structure

Abstract

The utility model belongs to cold machine application technical field, specifically disclose cold chain vehicle refrigeration unit cold air distribution structure, including carriage frame, refrigerator van refrigeration unit mounting seat, refrigeration unit, cold air collection shell, upper hollow flange pipe, upper transition guide tube, a plurality of upper frame board, upper gas delivery plate and a plurality of upper air outlet mouth etc. The utility model's cold chain vehicle refrigeration unit cold air distribution structure has the beneficial effect that: the matched cold air collection shell, upper hollow flange pipe, upper transition guide tube, a plurality of upper frame board, upper gas delivery plate and a plurality of upper air outlet mouth can carry out horizontal downward balanced low-temperature refrigeration to the goods loaded in the refrigerator van, especially satisfy the low-temperature refrigeration to the goods in the middle accumulation part of the large refrigerator van, the increased transition connecting sleeve, vertical guide tube and a plurality of vertical guide tube air outlet can go into the goods interior, realize the quick cooling and the low-temperature refrigeration of temperature.

Description

Technical Field

[0001] This utility model belongs to the field of refrigeration application technology, specifically relating to the air distribution structure of refrigeration units in refrigeration trucks. Background Technology

[0002] For those in the specialized vehicle industry, the most important aspect of the entire cold chain logistics is cold chain transportation. Currently, refrigerated transportation in my country is mainly carried out by road.

[0003] Cold chain transportation can be divided into two main categories based on the degree of food processing: primary agricultural products and processed foods. Primary agricultural products include vegetables, fruits, meat, poultry, eggs, milk, aquatic products, and floral products; processed foods include frozen foods, packaged cooked foods such as poultry, meat, and aquatic products, ice cream and dairy products, and fast food ingredients.

[0004] Different foods have different temperature requirements for preservation, thus requiring different types of vehicles for transportation. Based on the different temperatures required for food transportation, cold chain transportation can be further divided into three categories: fresh, chilled, and frozen. Fresh goods include vegetables, flowers, fruits, fresh vaccines, and live aquatic products, requiring a transportation temperature of around 2-8 degrees Celsius. Chilled goods mainly include aged meat products, fresh seafood, bean products, vaccine products, and chocolate, requiring a transportation temperature between 0 and -5 degrees Celsius. Frozen goods include quick-frozen foods, quick-frozen seafood, frozen meat, and frozen meat products, requiring a transportation temperature between -10 and -18 degrees Celsius.

[0005] Refrigerated transportation is the link we are most familiar with, encompassing medium- and long-distance transport and short-distance distribution of food. Refrigeration mainly involves several modes of transport, including refrigerated railway cars, refrigerated trucks, refrigerated ships, and refrigerated containers, with trucks currently being the mainstay of refrigerated transportation.

[0006] Temperature fluctuations are one of the main causes of food quality deterioration during refrigerated transportation. Therefore, transportation vehicles should have good performance and maintain stable temperatures while keeping the specified low temperatures. This is especially important for long-distance transportation.

[0007] With the rapid development of various chain supermarkets in cities, these supermarkets are becoming the main sales channels for cold chain food. In these retail terminals, refrigerated / frozen display cases and storage warehouses are used extensively, thus gradually becoming an indispensable and important link in the complete food cold chain.

[0008] Refrigerated trucks need to maintain low temperatures throughout the entire transportation process, while traditional refrigerated trucks focus on keeping the goods inside the vehicle cold and fresh. Refrigerated trucks maintain stable temperatures during loading, unloading, handling, changing transport methods, and packaging, thus prioritizing freezing performance and making them suitable for long-distance transportation.

[0009] Currently, when refrigerated trucks are used to refrigerate refrigerated compartments at low temperatures, they use the traditional direct air blowing cooling method at the front of the refrigerated compartment. The problems are: (1) After loading goods, it is impossible to cool down the middle stacked parts quickly, especially for larger refrigerated compartments; (2) During long-distance transportation, because the goods in the middle stacked parts cannot be kept at a constant low temperature, the goods are damaged by high temperature. In addition to the traditional temperature detection, the driver also needs to manually detect the temperature of the middle stacked goods from time to time during transportation, which is cumbersome and affects transportation efficiency (requiring a stop at the service area for detection).

[0010] Therefore, based on the above problems, this utility model provides a cold air distribution structure for refrigeration units in cold chain vehicles. Utility Model Content

[0011] Purpose of the utility model: The purpose of this utility model is to provide a cold air distribution structure for refrigeration units in cold chain vehicles, and to solve the technical problems existing in the use of refrigerated compartments in cold chain vehicles in the background art.

[0012] Technical Solution: The cold air distribution structure of the refrigeration unit for refrigerated trucks provided by this utility model includes a truck frame, a refrigeration unit mounting base for the refrigerated truck compartment, and a refrigeration unit. A cold air collecting shell fixedly connected to the refrigeration unit is installed on the refrigeration unit mounting base. An upper hollow flange pipe is provided on the upper inner wall of the refrigerated truck compartment. An upper transition air guide pipe connected to the upper hollow flange pipe is provided on the cold air collecting shell. Several upper frame plates are provided on the top inner wall of the refrigerated truck compartment. An upper air conveying plate connected to the upper hollow flange pipe is installed on the top inner wall of the refrigerated truck compartment through several upper frame plates. Several upper air outlets are provided on one side of the upper air conveying plate.

[0013] In this technical solution, the cold air distribution structure of the refrigeration unit of the cold chain vehicle further includes a transition connecting sleeve connected to the upper air outlet, a vertical air guide pipe disposed on one side of the transition connecting sleeve, and a plurality of vertical air guide pipe outlets disposed on the outer wall of the vertical air guide pipe.

[0014] The cold air distribution structure of the refrigeration unit of the refrigeration vehicle in this technical solution further includes a lower hollow flange pipe installed on the upper inner wall of the refrigerated compartment, a lower transition air guide pipe installed on the cold air collection shell and connected to the lower hollow flange pipe, a number of lower frame plates installed on the bottom inner wall of the refrigerated compartment, a lower air conveying plate installed on the number of lower frame plates and connected to the lower hollow flange pipe, and a number of lower air outlets installed on the lower air conveying plate.

[0015] The cold air distribution structure of the refrigeration unit of the cold chain vehicle in this technical solution also includes vertical support plates installed on the inner walls of the bottom at both ends of the refrigerated compartment, horizontal plates installed on the vertical support plates, and several ventilation slots installed in the horizontal plates.

[0016] Compared with existing technologies, the beneficial effects of the cold air distribution structure of the refrigeration unit for refrigerated trucks of this utility model are as follows: 1. The matching cold air collecting shell, upper hollow flange pipe, upper transition air guide pipe, several upper frame plates, upper air conveying plate, and several upper air outlets can achieve horizontal and downward uniform low-temperature refrigeration of goods loaded in the refrigerated compartment, especially meeting the low-temperature refrigeration needs of goods stacked in the middle of large refrigerated compartments; 2. The added transition connecting sleeve, vertical air guide pipe, and several vertical air guide pipe outlets can penetrate deep into the interior of the goods to achieve rapid... 3. The addition of a lower hollow flange pipe, a lower transition air guide pipe, several lower frame plates, a lower air conveying plate, and several lower air outlets enables horizontal and upward uniform low-temperature refrigeration of goods loaded in the refrigerated compartment, resulting in rapid cooling after loading and stable low temperature during transportation; 4. The addition of vertical support plates, horizontal plates, and several ventilation slots isolates and protects the lower hollow flange pipe, lower transition air guide pipe, several lower frame plates, lower air conveying plate, and several lower air outlets without affecting the cold air output. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the cold air distribution structure of the refrigeration unit for cold chain vehicles according to this utility model; Figure 2 This is a bottom view schematic diagram of the cold air distribution structure of the refrigeration unit of the cold chain vehicle of this utility model, showing several upper frame plates, upper air conveying plates and several upper air outlets. Figure 3 This is a top view of the lower air conveying plate, several lower air outlets, and several lower frame plates of the cold air distribution structure of the refrigeration unit of the cold chain vehicle of this utility model. Figure 4 This is a top view of the vertical support plate, horizontal plate, and several ventilation slots of the cold air distribution structure of the refrigeration unit of the cold chain vehicle of this utility model. Figure 5 This is a schematic diagram of the separate structure of the upper air outlet, transition connecting sleeve, vertical air guide pipe, and vertical air guide pipe outlet of the refrigeration unit of the cold chain vehicle of this utility model. The numbers in the diagram are as follows: 100-Carriage frame, 101-Refrigerated carriage, 102-Refrigeration unit mounting base, 103-Refrigeration unit, 104-Cold air collection shell, 105-Upper transition air guide pipe, 106-Upper hollow flange pipe, 107-Upper air conveying plate, 108-Upper air outlet, 109-Upper frame plate, 110-Lower transition air guide pipe, 111-Lower hollow flange pipe, 112-Lower air conveying plate, 113-Lower air outlet, 114-Lower frame plate, 115-Transition connecting sleeve, 116-Vertical air guide pipe, 117-Vertical air guide pipe outlet, 118-Horizontal plate, 119-Ventilation groove, 120-Vertical support plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1 like Figure 1 , Figure 2 , Figure 3 and Figure 5 The refrigeration unit cold air distribution structure shown includes a frame 100, a refrigerated compartment 101, a refrigeration unit mounting base 102, and a refrigeration unit 103. A cold air collection shell 104, which is fixedly connected to the refrigeration unit 103, is installed on the refrigeration unit mounting base 102. The upper inner wall of the refrigerated compartment 101 is equipped with an upper hollow flange pipe 106. The cold air collection shell 104 is provided with an upper transition air guide pipe 105 that is connected to the upper hollow flange pipe 106. The inner top wall of the refrigerated compartment 101 is equipped with several upper frame panels 109. The top inner wall of the refrigerated compartment 101 is equipped with an upper air supply plate 107 connected to the upper hollow flange pipe 106 via several upper frame plates 109. Several upper air outlets 108 are provided on one side of the upper air supply plate 107.

[0022] The working principle or structural principle is as follows: the cold air inlet of the refrigeration unit 103 is sealed and connected to the cold air collection shell 104. At this time, the low temperature refrigerated air flows into the top of the refrigerated compartment 101 through the upper transition air guide pipe 105, the upper hollow flange pipe 106, the upper air conveying plate 107 and several upper air outlets 108. The air is blown vertically and horizontally downwards in a balanced manner to quickly cool down and stably refrigerate the goods in the refrigerated compartment 101.

[0023] Example 2 Based on Embodiment 1, the cold air distribution structure of the refrigeration unit of the cold chain vehicle also includes a transition connecting sleeve 115 connected to the upper air outlet 108, a vertical air guide pipe 116 disposed on one side of the transition connecting sleeve 115, and a number of vertical air guide pipe outlets 117 disposed in the outer wall of the vertical air guide pipe 116. The above structure can quickly distribute refrigerated cold air into the goods (such as vegetables) stacked in the refrigerated compartment 101 to achieve rapid cooling and constant low temperature refrigeration function. The low temperature refrigerated air enters the transition connecting sleeve 115 through the upper air outlet 108 and enters the vertical air guide pipe 116 through the number of vertical air guide pipe outlets 117 into the corresponding gaps between the goods.

[0024] Among them, the upper air outlet 108 has a hollow external thread structure, and the transition connecting sleeve 115 has a hollow internal thread structure. This facilitates assembly during use or disassembly during unloading (simply hold the air outlet 117 of the vertical air guide tube and rotate the transition connecting sleeve 115).

[0025] Example 3 Based on Embodiment 2, the cold air distribution structure of the refrigeration unit of the cold chain vehicle also includes a lower hollow flange pipe 111 installed on the upper inner wall of the refrigerated compartment 101, a lower transition air guide pipe 110 installed on the cold air collection shell 104 and connected to the lower hollow flange pipe 111, a plurality of lower frame plates 114 installed on the bottom inner wall of the refrigerated compartment 101, a lower air conveying plate 112 installed on the plurality of lower frame plates 114 and connected to the lower hollow flange pipe 111, and a plurality of lower air outlets 113 installed on the lower air conveying plate 112.

[0026] The above-mentioned structural design can be used in conjunction with the upper transition air guide pipe 105, upper hollow flange pipe 106, upper air conveying plate 107, several upper air outlets 108 or transition connecting sleeve 115, vertical air guide pipe 116, and several vertical air guide pipe outlets 117 to achieve rapid cooling and constant low-temperature refrigeration in the large-size refrigerated compartment 101.

[0027] During operation, the cold air inlet of the refrigeration unit 103 is sealed and connected to the cold air collection shell 104. At this time, the low-temperature refrigerated air flows into the lower part of the refrigerated compartment 101 through the lower transition air guide pipe 110, the lower hollow flange pipe 111, the lower air conveying plate 112 and several lower air outlets 113. The air is blown evenly upwards and vertically to quickly cool down and stably refrigerate the goods in the refrigerated compartment 101.

[0028] Example 4 Based on Example 3, such as Figure 4 The refrigeration unit of the refrigeration unit shown in the diagram also includes vertical support plates 120 installed on the inner walls of the bottom at both ends of the refrigerated compartment 101, horizontal plates 118 installed on the vertical support plates 120, and several ventilation slots 119 installed in the horizontal plates 118. The refrigerated air sprayed from several lower air outlets 113 flows upward through several ventilation slots 119. The four edges of the horizontal plates 118 are welded and fixed to the inner walls of the refrigerated compartment 101. The thickness of the horizontal plates 118 is designed according to the requirements. It is mainly used to place the goods to be refrigerated and to protect the lower transition air pipe 110, the lower hollow flange pipe 111, the lower air conveying plate 112, and several lower air outlets 113.

[0029] The components in the refrigeration unit's air distribution structure of this cold chain vehicle, such as the frame 100, refrigerated compartment 101, refrigeration unit mounting base 102, and refrigeration unit 103, are all conventional parts, devices, or equipment. These are readily apparent to those skilled in the art without any inventive effort, and therefore the applicant will not elaborate further.

[0030] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. The refrigeration unit of the cold chain vehicle has a cold air distribution structure, including the vehicle frame (100) and the refrigerated compartment (101). The refrigeration unit mounting base (102) and the refrigeration unit (103) are characterized in that: The refrigeration unit mounting base (102) is equipped with a cold air collection shell (104) that is fixedly connected to the refrigeration unit (103). The upper inner wall of the refrigerated compartment (101) is provided with an upper hollow flange pipe (106). The cold air collecting shell (104) is provided with an upper transition air guide pipe (105) that is connected to the upper hollow flange pipe (106). The refrigerated compartment (101) has several upper frame panels (109) on its top inner wall. The top inner wall of the refrigerated compartment (101) is equipped with an upper air supply plate (107) connected to the upper hollow flange pipe (106) through several upper frame plates (109). The upper air supply plate (107) has several upper air outlets (108) on one side.

2. The cold air distribution structure of the refrigeration unit for refrigerated trucks according to claim 1, characterized in that: The cold air distribution structure of the refrigeration unit of the cold chain vehicle also includes a transition connecting sleeve (115) connected to the upper air outlet (108), a vertical air guide pipe (116) disposed on one side of the transition connecting sleeve (115), and a plurality of vertical air guide pipe outlets (117) disposed in the outer wall of the vertical air guide pipe (116).

3. The cold air distribution structure of the refrigeration unit for refrigerated trucks according to claim 1 or 2, characterized in that: The cold air distribution structure of the refrigeration unit of the cold chain vehicle also includes a lower hollow flange pipe (111) installed on the upper inner wall of the refrigerated compartment (101), a lower transition air guide pipe (110) installed on the cold air collection shell (104) and connected to the lower hollow flange pipe (111), a number of lower frame plates (114) installed on the bottom inner wall of the refrigerated compartment (101), a lower air conveying plate (112) installed on the number of lower frame plates (114) and connected to the lower hollow flange pipe (111), and a number of lower air outlets (113) installed on the lower air conveying plate (112).

4. The cold air distribution structure of the refrigeration unit for refrigerated trucks according to claim 3, characterized in that: The cold air distribution structure of the refrigeration unit of the cold chain vehicle also includes vertical support plates (120) set on the bottom inner walls of both ends of the refrigerated compartment (101), horizontal plates (118) set on the vertical support plates (120), and several ventilation slots (119) set in the horizontal plates (118).

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