Energy saving refrigeration apparatus

Abstract

The utility model discloses an energy -conserving refrigeration equipment, including cabinet and refrigeration subassembly, and refrigeration subassembly is installed in the cabinet installation cavity, refrigeration subassembly includes compressor, evaporimeter, condenser and throttling pipe, the first flow guide pipe on evaporimeter with the one end of compressor is conducted, and the other end of compressor with the one end of condenser is conducted, the throttling pipe is along the first flow guide pipe for center, and along the axial of first flow guide pipe is around the outer periphery of first flow guide pipe, and one end of throttling pipe with the second flow guide pipe on evaporimeter is conducted, and the other end of throttling pipe with the other end of condenser is conducted, its throttling pipe is around the outer periphery of the first flow guide pipe of evaporimeter for with compressor conduction, make the high temperature liquid refrigerant of condenser discharge flow through throttling pipe, can help the low temperature refrigerant steam of evaporimeter in the first flow guide pipe and precool, effectively eliminate refrigerant superheat degree, promote throttling efficiency, reduce the situation that refrigerant cooling is not sufficient, indirectly reduce energy consumption.

Description

[0001] An energy-saving refrigeration equipment Technical Field

[0002] This utility model relates to the field of refrigeration equipment technology, and in particular to an energy-saving refrigeration equipment. Background Technology

[0003] Refrigeration equipment is a low-temperature device for storing food, wine, beverages, and other items, such as wine cabinets, beverage cabinets, and freezers. It is widely used in home and commercial settings. Its core function is to maintain a stable temperature and humidity inside the cabinet through a refrigeration system, ensuring the consistent flavor and quality of the items inside.

[0004] Its refrigeration system is based on a vapor compression cycle, in which the capillary tube plays a crucial role in "pressure reduction and throttling," reducing the pressure of the high-pressure liquid refrigerant discharged from the condenser into a low-pressure gas-liquid mixture, preparing for the evaporator to absorb heat and refrigerate. The return pipe is responsible for transporting the low-temperature refrigerant vapor flowing out of the evaporator back to the compressor, completing the closed-loop cycle. The heat exchange state between the two directly affects the refrigerant throttling efficiency and cycle energy consumption, and is a core factor determining the refrigeration performance and energy-saving level of the refrigeration equipment.

[0005] Current refrigeration systems in commercially available cold storage equipment have significant defects: The capillary tube and return gas pipe are often arranged independently without a heat exchange structure. During operation, the high-temperature liquid refrigerant discharged from the condenser cannot be pre-cooled by the low-temperature vapor in the return gas pipe and directly enters the capillary tube, resulting in reduced throttling efficiency and insufficient refrigerant cooling. Furthermore, excessive refrigerant in various states entering the evaporator requires cooling capacity to change from "superheated gaseous state" to "saturated liquid state," crowding out the evaporator's effective cooling capacity and forcing an increase in evaporation temperature. This necessitates extended compressor operation to compensate for the cooling capacity shortfall, and the evaporator's cooling capacity decreases as temperature rises, ultimately leading to increased energy consumption. Utility Model Content

[0006] To overcome at least one of the defects described in the prior art, this utility model provides an energy-saving refrigeration device, in which a throttling tube is arranged around the outer periphery of the first guide tube used to connect the evaporator to the compressor. This allows the high-temperature liquid refrigerant discharged from the condenser to be pre-cooled by the low-temperature refrigerant vapor flowing out of the evaporator in the first guide tube when it flows through the throttling tube, effectively eliminating refrigerant superheat, improving throttling efficiency, reducing insufficient refrigerant cooling, and effectively achieving energy saving.

[0007] The technical solution adopted by this utility model to solve its problem is:

[0008] An energy-saving refrigeration device, comprising:

[0009] The cabinet has an installation cavity and a refrigeration cavity inside, and the installation cavity and the refrigeration cavity are opposite to each other but connected.

[0010] A refrigeration assembly is installed in the mounting cavity; the refrigeration assembly includes a compressor, an evaporator, a condenser, and a throttling tube; the evaporator is provided with a first guide tube and a second guide tube, the first guide tube is connected to one end of the compressor, and the other end of the compressor is connected to one end of the condenser;

[0011] The throttling tube is centered on the first guide tube and is arranged around the outer periphery of the first guide tube along the axial direction of the first guide tube; one end of the throttling tube is connected to the second guide tube, and the other end of the throttling tube is connected to the other end of the condenser.

[0012] Furthermore, the evaporator includes a first heat exchange tube, which includes a plurality of first vertical sections and a plurality of first curved sections. Each first vertical section is arranged at intervals along a first direction, and each two adjacent first vertical sections are connected and interconnected through the first curved sections.

[0013] One end of the first heat exchange tube is connected to the first guide tube, and the other end of the first heat exchange tube is connected to the condenser.

[0014] Furthermore, the energy-saving refrigeration equipment includes a connecting assembly, the connecting assembly including a positioning element, the positioning element being connected to the cabinet; the condenser includes a second heat exchange tube, the second heat exchange tube being arranged around the positioning element in layers around the outer periphery of the positioning element with the positioning element as the center and along the circumference of the positioning element;

[0015] One end of the second heat exchange tube is connected to the second guide tube, and the other end of the heat exchange tube is connected to the compressor.

[0016] Furthermore, the connecting assembly includes a locking member for locking the second heat exchange tube after it has been positioned around the outer periphery of the positioning member.

[0017] Furthermore, the locking member includes a connecting arm and two clamping plates, the two clamping plates being connected via the connecting arm; the two clamping plates clamp the two sides of the second heat exchange tube.

[0018] Furthermore, the second heat exchange tube includes a plurality of second vertical sections and a plurality of second curved sections. The second vertical sections are spaced apart along the first direction. Each second vertical section extends circumferentially along the positioning member and is arranged around the outer periphery of the positioning member. Each pair of adjacent second vertical sections are connected and interconnected through the second curved sections.

[0019] The connecting assembly further includes a plurality of support rods, which are spaced apart along the winding direction of the second vertical segment. Each support rod extends along a first direction and is sequentially connected to a plurality of the second vertical segments in the first direction.

[0020] Furthermore, multiple second heat exchange tubes are provided, and the multiple second heat exchange tubes are arranged sequentially from top to bottom along the first direction.

[0021] Furthermore, the cabinet includes multiple mounting plates and an inner liner. The multiple mounting plates are detachably connected and surround each other to form the mounting cavity. The inner liner is spaced apart from the side walls and bottom walls of the mounting cavity, forming a first mounting interval and a second mounting interval. The evaporator is installed in the first mounting interval. The compressor and the condenser are connected to one of the mounting plates and installed in the second mounting interval.

[0022] The inner liner is provided with a flow guide port, which is connected to the first installation interval.

[0023] Furthermore, the cabinet includes a partition, which is disposed between the first installation interval and the second installation interval; the partition is provided with a plurality of through holes, which respectively communicate with the first installation interval and the second installation interval.

[0024] Furthermore, the energy-saving refrigeration equipment includes a guide fan, which is located within the first installation interval and is used to guide airflow through the guide port into the refrigeration chamber.

[0025] In summary, the energy-saving refrigeration equipment provided by this utility model has the following technical effects:

[0026] In operation, this energy-saving refrigeration equipment features a throttling tube in its refrigeration system that functions as a refrigerant pressure reducer and throttling device. This tube is positioned around the outer periphery of the first guide tube between the evaporator and the compressor, forming a close-fitting heat exchange structure. Through direct heat conduction between the throttling tube and the first guide tube, the high-temperature liquid refrigerant discharged from the condenser is pre-cooled by the low-temperature refrigerant vapor flowing from the evaporator within the first guide tube. This effectively eliminates refrigerant superheat, improves throttling efficiency, and reduces insufficient refrigerant cooling. Consequently, the pre-cooled refrigerant, upon entering the evaporator, does not require additional cooling energy conversion and can directly and efficiently evaporate and absorb heat. This reduces the impact on the evaporator's effective refrigeration capacity, lowers the evaporator's evaporation temperature, and alleviates the problem of evaporator refrigeration capacity decreasing with increasing temperature.

[0027] In addition, the low-temperature refrigerant vapor in the first guide tube can absorb the heat from the throttling tube during the heat exchange process to maintain a low temperature, thereby stabilizing the suction temperature of the refrigerant when it enters the compressor, reducing the compressor compression ratio, indirectly reducing the compressor's operating energy consumption, and ultimately reducing the overall operating energy consumption of the refrigeration equipment. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0029] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0030] Figure 2 This is an exploded view of the refrigeration components and cabinet of this utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the evaporator of this utility model;

[0032] Figure 4 This is a schematic diagram of the condenser of this utility model;

[0033] Figure 5 This is a schematic diagram of the condenser structure of this utility model from another perspective.

[0034] The meanings of the reference numerals in the attached figures are as follows:

[0035] 10. Cabinet body; 11. Inner liner; 111. Refrigeration chamber; 12. Mounting plate; 13. Mounting chamber; 131. First mounting interval; 132. Second mounting interval; 14. Partition; 20. Refrigeration assembly; 21. Compressor; 22. Evaporator; 221. First guide pipe; 222. First heat exchange pipe; 2221. First vertical section; 2222. First curved section; 223. Second guide pipe; 23. Condenser; 231. Second heat exchange pipe; 2311. Second vertical section; 2312. Second curved section; 24. Throttling pipe; 241. Throttling valve; 40. Connecting assembly; 41. Positioning component; 42. Locking component; 421. Connecting arm; 422. Clamping plate; 43. Support rod; 50. Guide fan. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0038] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0039] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0040] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0041] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0042] Example 1,

[0043] See Figures 1 to 5This utility model discloses an energy-saving refrigeration device, including: a cabinet (10) and a refrigeration component (20). The cabinet (10) is provided with an installation cavity (13) and a refrigeration cavity (111). The installation cavity (13) and the refrigeration cavity (111) are opposite to each other and connected. The refrigeration component (20) is installed in the installation cavity (13). The refrigeration component (20) includes a compressor (21), an evaporator (22), a condenser (23), and a throttling tube (24). The evaporator (22) is provided with a first guide tube. (221) and the second guide pipe 223, the first guide pipe (221) is connected to one end of the compressor (21), and the other end of the compressor (21) is connected to one end of the condenser (23); the throttling pipe (24) is centered on the first guide pipe (221) and is arranged around the outer periphery of the first guide pipe (221) along the axial direction of the first guide pipe (221); one end of the throttling pipe (24) is connected to the second guide pipe 223, and the other end of the throttling pipe (24) is connected to the other end of the condenser (23).

[0044] Based on the above structure, during assembly, the refrigeration component (20) is installed in the mounting cavity (13). The refrigeration component (20) of the energy-saving refrigeration equipment is integrated and installed in the pre-set mounting cavity (13) of the equipment. When the refrigeration component (20) is started and running, the compressor (21) first compresses the low-temperature and low-pressure refrigerant vapor into high-temperature and high-pressure vapor, and then transports it to the condenser (23) through the pipeline. The high-temperature and high-pressure refrigerant vapor exchanges heat with the external environment in the condenser (23), and after heat dissipation, it condenses into a high-temperature and high-pressure liquid refrigerant.

[0045] Subsequently, the high-temperature and high-pressure liquid refrigerant flows into the throttling tube (24) that is wound along the first guide tube (221). At this time, the first guide tube (221) is transporting the low-temperature and low-pressure gaseous refrigerant flowing out from the evaporator (22). The two exchange heat with the tube wall of the first guide tube (221) through the throttling tube (24), so that the high-temperature liquid refrigerant in the throttling tube (24) is fully pre-cooled and the temperature drops to close to the saturation temperature under the corresponding pressure, reducing the superheat of the high-temperature liquid refrigerant in the traditional structure.

[0046] The pre-cooled high-temperature liquid refrigerant enters the throttling valve (also known as the expansion valve) matched with the throttling pipe (24). Through the throttling and pressure reduction effect of the throttling valve, it is transformed into a low-temperature and low-pressure gas-liquid mixture refrigerant. This gas-liquid mixture refrigerant is transported to the evaporator (22) through the second guide pipe 223. In the evaporator (22), it absorbs the heat in the mounting cavity (13) and gradually evaporates into a low-temperature and low-pressure gaseous refrigerant, while the temperature of the mounting cavity (13) continues to decrease. After evaporation, the low-temperature and low-pressure gaseous refrigerant flows back to the suction end of the compressor (21) through the first guide pipe (221) to start the next refrigeration cycle. When the temperature in the mounting cavity (13) drops to the set value, the low-temperature cold air in the cavity is directionally transported to the cold storage cavity (111) through the sealed pipeline, filling the internal space of the cold storage cavity (111), and finally providing a stable and uniform low-temperature preservation environment for the food, wine and other items stored in the cold storage cavity.

[0047] Throughout the refrigeration process, the throttling tube (24) is wound around the outer periphery of the first guide tube (221) along its axial direction (see... Figure 4 The high-temperature liquid refrigerant delivered by the condenser (23) to the throttling tube (24) is fully pre-cooled by the low-temperature refrigerant vapor flowing out of the evaporator (22) in the first guide tube (221). After being throttled by the throttling valve, it can quickly form a uniform gas-liquid mixture, which reduces the problem in the traditional structure that the liquid refrigerant with high superheat needs to consume additional cooling capacity in the evaporator (22) to cool down to saturation after throttling, thus improving the throttling efficiency.

[0048] In addition, the gas-liquid mixture refrigerant entering the evaporator (22) does not require additional cooling energy consumption. The cold energy generated by the evaporator (22) can be used to absorb the heat of the mounting cavity (13), which not only improves the refrigeration efficiency, but also reduces the problem of the evaporation temperature rise and refrigeration capacity reduction caused by the squeezing of cold energy in the evaporator (22), so that the evaporator (22) can operate efficiently. At the same time, the low-temperature gaseous refrigerant in the first guide tube (221) absorbs a small amount of heat from the throttling tube (24) during the heat exchange process, but effectively isolates the temperature rise caused by the first guide tube (221) being exposed to the environment in the traditional structure, so that the suction temperature entering the compressor (21) is relatively stable. With a stable suction temperature, the suction pressure is not easy to drop, thereby effectively reducing the compression ratio, which in turn reduces the operating energy consumption of the compressor (21), and finally reduces the overall operating energy consumption of the refrigeration equipment.

[0049] It should be noted that the first guide tube (221) and the second guide tube 223 can be made of existing stainless steel tubes, aluminum alloy tubes or copper tubes, etc.; while the throttling tube adopts the capillary tube in the existing throttling element.

[0050] Furthermore, in this embodiment, the compressor (21) uses existing reciprocating piston compressors, rolling rotor compressors, and other existing compressor structures; the evaporator (22) can be an existing coaxial evaporator (22), plate evaporator (22), or shell-and-tube evaporator (22); similarly, the condenser (23) can also be an existing coaxial condenser (23), shell-and-tube condenser (23), or finned tube condenser (23). Moreover, the refrigeration principles of the compressor, evaporator, and condenser in this application are all prior art and are not part of the technical content to be protected in this application.

[0051] Furthermore, the evaporator (22) includes a first heat exchange tube (222), which includes multiple first vertical sections (2221) and multiple first curved sections (2222). Each first vertical section (2221) is arranged at intervals along a first direction, and each two adjacent first vertical sections (2221) are connected and interconnected through the first curved section (2222). One end of the first heat exchange tube (222) is connected to the first guide tube (221), and the other end of the first heat exchange tube (222) is connected to the condenser (23).

[0052] Based on this structure, taking the height direction of the cabinet as an example, during assembly, multiple first vertical segments (2221) of the first heat exchange tube (222) are arranged in an intermittent manner along the height direction (first direction) of the cabinet (10). The multiple first vertical segments (2221) extend parallel to the height of the cabinet (10), with a uniform gap reserved between two adjacent first vertical segments. Two adjacent first vertical segments (2221) are connected by a first bending segment (2222), so that the first heat exchange tube (222) forms a segmented vertical arrangement structure, making full use of space in the height dimension. Finally, it is compactly embedded into the cabinet (10) in an overall vertical state, reducing the occupation of too much horizontal area. In this way, even if the internal space of the equipment is limited, its slender vertical structure can be used to adapt to the narrow internal space of small equipment, improving the versatility of the entire structure.

[0053] It should be noted that every two first vertical sections (2221) and one first curved section (2222) can be connected by welding or integral molding. The specific arrangement can be flexibly adjusted according to the internal space of the equipment to better fit the internal space of the equipment.

[0054] Furthermore, the energy-saving refrigeration equipment includes a connecting component (40), which includes a positioning element (41) connected to the cabinet (10). The condenser (23) includes a second heat exchange tube (231), which is arranged around the positioning element (41) in layers around the outer periphery of the positioning element (41) with the positioning element (41) as the center. One end of the second heat exchange tube (231) is connected to the second guide tube 223, and the other end of the heat exchange tube is connected to the compressor (21).

[0055] Specifically, during assembly, the positioning component (41) extends along the first direction (the height direction of the cabinet (10)) and is connected to the cabinet (10). The second heat exchange tube (231) is arranged in layers around the positioning component (41) so that the second heat exchange tube (231) forms a ring-shaped cylindrical structure instead of the traditional straight-pipe strip structure, thereby reducing the space occupied by the second heat exchange tube (231) in the storage cavity in the height or width direction.

[0056] Compared to the traditional straight-flow finned condenser (23) or plate condenser (23), this coiled cylindrical condenser (23) only occupies a circular radial area. It does not stretch along a single direction like the straight-flow structure, nor does it spread out on a plane like the plate structure, limiting the layout of surrounding components. This reduces the space occupied by the entire structure and indirectly reduces the external size of the entire refrigeration equipment, making it suitable for embedding in home cabinets or placing in corners, and it is highly versatile.

[0057] It should be noted that when the second heat exchange tube (231) is wound, it is fixed with the positioning member (41) as the center, starting from the outer circumference of the positioning member (41), and is wound layer by layer from the inside to the outside. Each layer of tube segments is arranged in sequence along the radial direction of the positioning member (41), and a uniform gap is reserved between adjacent layers to reduce the problem of tube segments sticking together and affecting heat dissipation.

[0058] Of course, it can also be centered on the positioning element (41), but the second heat exchange tube (231) is not stacked radially, but is wound in a single-layer spiral around the outer periphery of the positioning element (41) along the height direction. For example, it can be wound from the top of the positioning element (41) from top to bottom, or from the bottom to top. The tube segments are evenly distributed along the height direction of the positioning element (41), and only the thickness of a single-layer tube body is retained in the radial direction. The specific settings can be determined according to the actual installation scenario.

[0059] More specifically, in this embodiment, the connecting component (40) includes a locking member (42), which locks the second heat exchange tube (231) after it is wrapped around the outer periphery of the positioning member (41). The locking member (42) conforms to the arrangement trajectory of the second heat exchange tube (231) to fix it, reducing the risk of the second heat exchange tube (231) loosening due to external interference after it is wrapped around the positioning member (41), so that the second heat exchange tube (231) maintains a compact annular cylindrical structure and reduces the space occupied.

[0060] It should be noted that the locking component (42) can be an existing clamp. The inner side of the clamp is fitted with the curvature of the outermost heat exchange tube and tightened by bolts or elastic buckles to reduce the problem of radial displacement of the second heat exchange tube (231) after it is wrapped around. The locking component (42) can also be a long strip of cable tie. The cable tie is laid along the axial direction of the positioning component (41), passes through the gap between the heat exchange tubes and is tied in sections to restrict the axial movement of the tube sections. The specific choice can be made according to the actual installation requirements.

[0061] Furthermore, the locking member (42) includes a connecting arm (421) and two clamping plates (422), which are connected via the connecting arm (421); the two clamping plates (422) are clamped on both sides of the second heat exchange tube (231).

[0062] Specifically, after the second heat exchange tube (231) is wound, the two clamping plates (422) apply force simultaneously from the two arc-shaped surfaces of the second heat exchange tube (231) to form symmetrical clamping. At the same time, the connecting arm (421) locks the distance between the two clamping plates (422) with its own rigid structure, reducing the problem of clamping loosening due to uneven force, thereby reducing the probability of radial displacement (such as the expansion of the stacked tube) or axial movement (such as the sliding of the single-layer tube along the height of the positioning member (41)) after the second heat exchange tube (231) is wound, so that the second heat exchange tube (231) maintains a regular annular or spiral shape.

[0063] It should be noted that after the locking member (42) locks the second heat exchange tube (231), the connecting arm (421) can be connected to the positioning member (41) through a connector (such as a screw or bolt), thus fixing the locking member (42) and the positioning member (41) into one piece. Not only does the clamping plate (422) constrain the loosening of the second heat exchange tube (231), but the connection between the connecting arm (421) and the positioning member (41) also transmits the fixing force of the entire locking structure to the cabinet (10), further reducing the probability of the entire structure becoming loose.

[0064] Example 2,

[0065] Preferably, in this embodiment, the second heat exchange tube (231) includes a plurality of second vertical sections (2311) and a plurality of second curved sections (2312). The second vertical sections (2311) are spaced apart along the first direction. Each second vertical section (2311) extends along the circumference of the positioning member (41) and is wrapped around the outer periphery of the positioning member (41). Each two adjacent second vertical sections (2311) are connected and interconnected through the second curved section (2312). The connecting assembly (40) also includes a plurality of support rods (43). The plurality of support rods (43) are spaced apart along the winding direction of the second vertical sections (2311). Each support rod (43) extends along the first direction and is sequentially connected to the plurality of second vertical sections (2311) in the first direction.

[0066] Specifically, during assembly, multiple second vertical sections (2311) are evenly spaced along the first direction (i.e., the height direction of the cabinet (10)). Each second vertical section (2311) extends circumferentially along the positioning element (41) and is arranged in a ring around the outer periphery of the positioning element (41). Between each two adjacent second vertical sections (2311), a second curved section (2312) adapted to the curvature of the vertical section is used to connect them, reducing the problem of increased refrigerant flow resistance caused by right-angle transitions. This makes the entire second heat exchange tube (231) form a continuous flow channel with arc-shaped vertical sections spaced vertically and curved sections transitioning circumferentially. In this way, each second vertical section (2311) makes full use of the height redundancy space of the refrigeration equipment, reduces the horizontal encroachment on the storage area, and by conforming to the outer periphery of the positioning element (41) in a circumferential arc shape, the entire group of second vertical sections (2311) forms a three-dimensional columnar structure with layers surrounding and staggered heights, increasing the contact area with air. This allows the refrigerant to fully contact the heat exchange surface (second vertical section (2311)) along the height direction when flowing in the pipe, and to smoothly change direction through the second curved section (2312), reducing the probability of flow channel blockage or local liquid accumulation and ensuring condensation heat release efficiency.

[0067] In addition, multiple support rods (43) are evenly spaced along the circumferential direction of the second vertical section (2311) (i.e., the circumferential direction of the positioning element (41)), and each support rod (43) extends in a straight line along the first direction (the height direction of the cabinet (10)). In the height direction, they are fixedly connected to all the second vertical sections (2311) in the area (e.g., by using arc-shaped buckles or low-temperature welding). Through the multiple support rods (43) on the outside or inside of the wound second heat exchange tube (231), a longitudinal multi-point support is formed, connecting the dispersed second vertical sections (2311) into a whole, making the second heat exchange tube (231) more stable after installation.

[0068] Example 3,

[0069] Preferably, in this embodiment, multiple second heat exchange tubes (231) are provided. During assembly, the multiple second heat exchange tubes (231) are arranged sequentially from top to bottom in the first direction (the height direction of the cabinet (10), and adjacent second heat exchange tubes (231) are interconnected, so that the multiple second heat exchange tubes (231) are sequentially interconnected in the height direction of the cabinet (10), and are wound in a single-layer spiral around the outer periphery of the positioning member (41) along the height direction of the cabinet (10), with only the thickness of a single-layer tube body retained in the radial direction. This reduces radial space occupation and ensures the basic heat exchange area by lengthening the tube section.

[0070] Example 4,

[0071] Furthermore, based on Embodiments 1 to 3, the cabinet (10) in this embodiment includes multiple mounting plates (12) and an inner liner (11). The multiple mounting plates (12) are detachably connected and surround each other to form an installation cavity (13). The inner liner (11) and the side walls and bottom walls of the installation cavity (13) are spaced apart and form a first installation interval (131) and a second installation interval (132). The evaporator (22) is installed in the first installation interval (131). The compressor (21) and the condenser (23) are connected to one of the mounting plates (12) and installed in the second installation interval (132). The inner liner (11) is provided with a guide port, which is connected to the first installation interval (131) so that the cold air generated by the evaporator (22) can be transported to the refrigeration cavity (111) in the inner liner (11) through the guide port.

[0072] Specifically, during installation, the evaporator (22) is installed in the first installation compartment (131), and the compressor (21) and condenser (23) are installed in the second installation compartment (132). In this way, the evaporator (22), condenser (23) and compressor (21) are less likely to affect each other during operation. That is, when the evaporator (22) needs to absorb heat from the surroundings during operation, its low-temperature effect is limited to the first installation compartment (131) and is less likely to affect the "heat-releasing components" (compressor (21) and condenser (23)) located in the second installation compartment (132). Similarly, the heat generated by the compressor (21) and condenser (23) in the second installation compartment (132) can be dissipated through the independent space of the second installation compartment (132) and is less likely to be transferred to the inner liner (11) or the first installation compartment (131), reducing problems such as the heat-releasing components heating the refrigeration chamber and the heat-absorbing components reducing the heat release efficiency.

[0073] In addition, during production, the compressor (21) and condenser (23) can be pre-fixed on one of the designated mounting plates (12) to complete the pre-assembly process such as pipe welding and wire connection. Then, the mounting plate (12) can be assembled with other plates. Compared with the on-site installation of components one by one, pre-assembly can be completed in a standardized factory environment, reducing on-site assembly errors (such as refrigerant leakage caused by pipe connection deviation).

[0074] More specifically, since multiple mounting plates (12) are detachably connected, for example by fasteners, screws or bolts, if the compressor (21) or condenser (23) fails, there is no need to disassemble the parts individually. Instead, the entire mounting plate (12) can be removed and replaced with a new mounting plate (12) with the pre-installed parts. The maintenance process does not require re-welding of pipes or wiring, making maintenance more convenient.

[0075] Furthermore, the cabinet (10) includes a partition (14), which is located between the first installation interval (131) and the second installation interval (132). The partition (14) has multiple through holes, which are respectively connected to the first installation interval (131) and the second installation interval (132).

[0076] Specifically, during installation, the first installation interval (131) and the second installation interval (132) are separated by a partition (14) to form two relatively independent spaces, so as to prevent the high temperature of the second installation interval (132) from spreading to the first installation interval (131), so that the first installation interval (131) can maintain a low ambient temperature, and the evaporator (22) can absorb heat stably without frequent start and stop, thereby indirectly reducing the daily energy consumption of the refrigeration equipment.

[0077] In addition, since the partition (14) is provided with multiple through holes, the multiple through holes can be used to install the first guide pipe (221), the second guide pipe 223 or other pipelines. The multiple through holes provide an orderly channel for pipelines or lines, making the internal pipelines or lines more orderly.

[0078] More specifically, the energy-saving refrigeration equipment includes a guide fan (50), which is located in the first installation interval (131). The guide fan (50) is used to guide airflow through the guide port into the refrigeration chamber (111). When the equipment is running, the guide fan (50) draws the cold air cooled by the evaporator (22) in the first installation interval (131), and delivers it in a stable direction to the guide port of the inner liner (11) with a stable air pressure. It is then delivered through the guide port to the refrigeration chamber (111) inside the inner liner (11) and fully mixes with the warm air in the refrigeration chamber (111). The mixed warm air then flows back to the first installation interval (131) through the natural convection inside the refrigeration chamber (111) or the reserved return channel, and is cooled again by the evaporator (22), forming a circulation path of cold air entering and warm air exiting.

[0079] It should be noted that the guide fan (50) can be an existing axial fan, centrifugal fan or cross-flow fan.

[0080] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An energy-saving refrigeration device, characterized in that, include: The cabinet has an installation cavity and a refrigeration cavity inside, and the installation cavity and the refrigeration cavity are opposite to each other but connected. A refrigeration assembly is installed in the mounting cavity; the refrigeration assembly includes a compressor, an evaporator, a condenser, and a throttling tube; the evaporator is provided with a first guide tube and a second guide tube, the first guide tube is connected to one end of the compressor, and the other end of the compressor is connected to one end of the condenser; The throttling tube is centered on the first guide tube and is arranged around the outer periphery of the first guide tube along the axial direction of the first guide tube; one end of the throttling tube is connected to the second guide tube, and the other end of the throttling tube is connected to the other end of the condenser.

2. The energy-saving refrigeration equipment as described in claim 1, characterized in that, The evaporator includes a first heat exchange tube, which includes a plurality of first vertical sections and a plurality of first curved sections. Each first vertical section is arranged at intervals along a first direction, and each two adjacent first vertical sections are connected and interconnected through the first curved sections. One end of the first heat exchange tube is connected to the first guide tube, and the other end of the first heat exchange tube is connected to the condenser.

3. The energy-saving refrigeration equipment as described in claim 1, characterized in that, The energy-saving refrigeration equipment includes a connecting assembly, which includes a positioning element connected to the cabinet; the condenser includes a second heat exchange tube, which is arranged around the positioning element in layers around the outer periphery of the positioning element with the positioning element as the center. One end of the second heat exchange tube is connected to the second guide tube, and the other end of the heat exchange tube is connected to the compressor.

4. The energy-saving refrigeration equipment as described in claim 3, characterized in that, The connecting assembly includes a locking member for locking the second heat exchange tube after it has been positioned around the outer periphery of the positioning member.

5. The energy-saving refrigeration equipment as described in claim 4, characterized in that, The locking element includes a connecting arm and two clamping plates, which are connected via the connecting arm; the two clamping plates clamp the two sides of the second heat exchange tube.

6. The energy-saving refrigeration equipment as described in claim 4, characterized in that, The second heat exchange tube includes multiple second vertical sections and multiple second curved sections. The second vertical sections are spaced apart along a first direction. Each second vertical section extends circumferentially along the positioning member and is arranged around the outer periphery of the positioning member. Each two adjacent second vertical sections are connected and interconnected through the second curved sections. The connecting assembly further includes a plurality of support rods, which are spaced apart along the winding direction of the second vertical segment. Each support rod extends along a first direction and is sequentially connected to a plurality of the second vertical segments in the first direction.

7. The energy-saving refrigeration equipment as described in claim 3, characterized in that, The second heat exchange tube is provided in multiple ways, and the multiple second heat exchange tubes are arranged sequentially from top to bottom along the first direction.

8. The energy-saving refrigeration equipment as described in any one of claims 1-7, characterized in that, The cabinet includes multiple mounting plates and an inner liner. The mounting plates are detachably connected and surround each other to form the mounting cavity. The inner liner is spaced apart from the side walls and bottom walls of the mounting cavity, forming a first mounting interval and a second mounting interval. The evaporator is installed in the first mounting interval. The compressor and the condenser are connected to one of the mounting plates and installed in the second mounting interval. The inner liner is provided with a flow guide port, which is connected to the first installation interval.

9. The energy-saving refrigeration equipment as described in claim 8, characterized in that, The cabinet includes a partition, which is disposed between the first installation interval and the second installation interval; the partition is provided with a plurality of through holes, which are respectively connected to the first installation interval and the second installation interval.

10. The energy-saving refrigeration equipment as described in claim 9, characterized in that, The energy-saving refrigeration equipment includes a guide fan, which is located in the first installation interval and is used to guide airflow through the guide port into the refrigeration chamber.

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