New energy refrigerating unit

Abstract

The invention belongs to the technical field of new energy automobiles, and discloses a new energy refrigerating unit. The new energy refrigerating unit comprises a unit frame, a heat insulation inner container, an evaporator assembly and a condenser assembly. The heat insulation inner container divides the interior of the unit frame into a first cavity and a second cavity, an air outlet of the first cavity and an air return opening of the first cavity are located in the side, away from the second cavity, of the first cavity, the air outlet of the first cavity and the air return opening of the first cavity are formed in the vertical direction in a spaced mode, and the heat insulation inner container is made of foamed polypropylene materials. The evaporator assembly is located in the first cavity and comprises an evaporation core body and an evaporation fan, the evaporation core body is vertically arranged and right faces an air return opening of the first cavity, the evaporation fan is located above the evaporation core body, and an air outlet of the evaporation fan right faces an air outlet of the first cavity; the condenser assembly is located in the second cavity. The new energy refrigerating unit is light in weight, low in energy consumption and high in performance.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, and in particular to a new energy refrigeration unit. Background Technology

[0002] Refrigeration units are widely used in cold chain transportation, industrial cooling, commercial refrigeration and other fields. They typically include components such as compressors, evaporators and condensers. Their core performance depends on the heat exchange efficiency of the evaporator and condenser as well as the overall thermal insulation effect of the unit.

[0003] However, existing refrigeration units, such as Figure 1 As shown, the evaporator core 2' of the evaporator and the condenser core insulation liner 1' of the condenser are formed using fiberglass with a foaming process, resulting in a relatively heavy weight. Furthermore, because the inner insulation liner 1' is formed by bonding fiberglass together and then foaming, cracks are prone to develop at the seams of the fiberglass over time, affecting the insulation performance of the liner and increasing the risk of leakage, thus impacting the performance of the refrigeration unit. Simultaneously, the layout design of the evaporator core 2', evaporator fan 3', and evaporator cavity 4' in existing refrigeration units is not sufficiently optimized, often resulting in tortuous airflow paths and high wind resistance, specifically as follows... Figure 1 The arrows in the diagram indicate the direction of airflow. Higher wind resistance not only reduces the fan's air delivery efficiency and increases its operating energy consumption, but also leads to uneven airflow distribution on the surface of the evaporator core 2', affecting heat exchange and further reducing the overall performance of the refrigeration unit.

[0004] Therefore, there is an urgent need to propose a new energy refrigeration unit to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a new energy refrigeration unit. The heat-insulating inner liner of the new energy refrigeration unit is lightweight, thus making the overall weight of the refrigeration unit light. The internal layout of the refrigeration unit is reasonable, thus making the overall energy consumption of the refrigeration unit low and the performance high.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A new energy refrigeration unit, comprising:

[0008] The unit frame is vertically arranged;

[0009] The heat-insulating inner liner divides the interior of the unit frame into a first cavity and a second cavity. The air outlet and the air return port of the first cavity are located on the side of the first cavity away from the second cavity, and the air outlet and the air return port of the first cavity are arranged vertically from top to bottom at intervals. The heat-insulating inner liner is made of foamed polypropylene material.

[0010] An evaporator assembly is located within the first cavity. The evaporator assembly includes an evaporator core and an evaporator fan. The evaporator core is vertically arranged and directly opposite the return air inlet of the first cavity. The evaporator fan is located above the evaporator core, and the air outlet of the evaporator fan is directly opposite the air outlet of the first cavity. Airflow enters from the return air inlet of the first cavity, passes through the evaporator core and the evaporator fan, and then exits from the air outlet of the first cavity.

[0011] A condenser assembly located within the second cavity.

[0012] As an optional technical solution for new energy refrigeration units, the evaporator fan is a centrifugal fan.

[0013] As an optional technical solution for new energy refrigeration units, the new energy refrigeration unit also includes a flow guide shroud, which is disposed at the air outlet of the centrifugal fan and is used to guide the airflow blown out from the air outlet of the centrifugal fan to the air outlet of the first cavity.

[0014] As an optional technical solution for new energy refrigeration units, the condenser assembly includes a condenser core and a condenser fan. The condenser core is located above the heat-insulating inner liner, allowing the condenser core to expel air upwards.

[0015] As an optional technical solution for new energy refrigeration units, the heat-insulating inner liner and the condenser core are tilted downward at the vertical overlap to avoid the air inlet of the condenser core.

[0016] As an optional technical solution for new energy refrigeration units, the insulated inner liner is tilted at an angle of 14.3° relative to the condenser core.

[0017] As an optional technical solution for new energy refrigeration units, the heat-insulating inner liner and the condensing core are provided with reflective film sponge strips on the non-overlapping parts in the vertical direction.

[0018] As an optional technical solution for new energy refrigeration units, the new energy refrigeration unit also includes a compressor, which is located on the front side of the heat-insulating inner liner and on the side where the air inlet of the condenser fan is located.

[0019] As an optional technical solution for new energy refrigeration units, the compressor is a variable frequency scroll compressor.

[0020] As an optional technical solution for new energy refrigeration units, the unit frame is made of aluminum alloy.

[0021] The beneficial effects of this invention are:

[0022] The new energy refrigeration unit provided by this invention includes a unit frame, an insulated inner liner, an evaporator assembly, and a condenser assembly. The insulated inner liner is made of foamed polypropylene material, which has low density, low thermal conductivity, and is easy to recycle and decompose, resulting in light weight, good insulation performance, and no pollution. The evaporator assembly includes an evaporator core and an evaporator fan. The evaporator core is vertically arranged and directly opposite the return air inlet of the first cavity, increasing the windward area of ​​the evaporator core's return air. Under the premise of the same heat exchange area, the wind resistance is lower, and under the premise of the same required air volume, the power of the evaporator fan can be reduced, thus reducing energy consumption. The evaporator fan is located above the evaporator core, and the air outlet of the evaporator fan is directly opposite the air outlet of the first cavity. The air inlet and outlet circulation of the evaporator fan is bottom inlet and side outlet, ensuring that the air outlet direction is unobstructed, thereby increasing the air delivery distance and air volume, and better utilizing the performance of the evaporator assembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a refrigeration unit in the background art;

[0024] Figure 2 This is a partial cross-sectional view of the new energy refrigeration unit provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the new energy refrigeration unit provided in an embodiment of the present invention.

[0026] In the picture:

[0027] 1' Insulated inner liner; 2' Evaporator core; 3' Evaporator fan; 4' Evaporator air chamber;

[0028] 1. Insulated inner liner; 2. Evaporator core; 3. Evaporator fan; 4. Evaporator air chamber; 5. Condenser core; 6. Condenser fan; 7. Compressor; 8. Reflective film sponge strip. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0030] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0033] This embodiment provides a new energy refrigeration unit. The heat-insulating inner liner of the new energy refrigeration unit is lightweight, thus making the overall weight of the refrigeration unit light. The internal layout of the refrigeration unit is reasonable, resulting in low overall energy consumption and high performance.

[0034] Specifically, such as Figure 2 and Figure 3 As shown, the new energy refrigeration unit includes a unit frame, an insulated inner liner 1, an evaporator assembly, and a condenser assembly. The unit frame is vertically arranged; the insulated inner liner 1 divides the interior of the unit frame into a first cavity and a second cavity. The air outlet and return air outlet of the first cavity are located on the side of the first cavity away from the second cavity, and the air outlet and return air outlet of the first cavity are spaced vertically from top to bottom. The insulated inner liner 1 is made of foamed polypropylene material; the evaporator assembly is located in the first cavity and includes an evaporator core 2 and an evaporator fan 3. The evaporator core 2 is vertically arranged and directly opposite the return air outlet of the first cavity. The evaporator fan 3 is located above the evaporator core 2, and the air outlet of the evaporator fan 3 is directly opposite the air outlet of the first cavity. Airflow enters from the return air outlet of the first cavity, passes through the evaporator core 2 and the evaporator fan 3, and then exits from the air outlet of the first cavity; the condenser assembly is located in the second cavity.

[0035] Based on the above design, the heat-insulating inner liner 1 is made of foamed polypropylene material. Foamed polypropylene (EPP) has low density, low thermal conductivity, and is easy to recycle and decompose, resulting in light weight, good heat insulation effect, and no pollution. The evaporator assembly includes an evaporator core 2 and an evaporator fan 3. The evaporator core 2 is vertically arranged and directly opposite the return air inlet of the first cavity, increasing the air-facing area of ​​the evaporator core 2. Under the premise of the same heat exchange area, the wind resistance is smaller, and under the premise of the same required air volume, the power of the evaporator fan 3 can be reduced, thus reducing energy consumption. The evaporator fan 3 is located above the evaporator core 2, and the air outlet of the evaporator fan 3 is directly opposite the air outlet of the first cavity. The evaporator air chamber 4 is located on the rear side of the evaporator core 2 (i.e., Figure 2 (On the left side of the middle), the air circulation of the evaporator fan 3 is bottom inlet and side outlet, so that the air outlet direction is unobstructed, thereby increasing the air supply distance and air volume, and better utilizing the performance of the evaporator components.

[0036] It should be noted that the vertical arrangement of the evaporator core 2 and its direct alignment with the return air inlet of the first cavity means that the air entering from the return air inlet of the first cavity can be perpendicular to the air inlet of the vertical surface of the evaporator core 2. Figure 2 The arrows in the diagram indicate the direction of airflow.

[0037] Alternatively, the unit frame can be made of aluminum alloy, which can reduce the overall weight of the new energy refrigeration unit.

[0038] Optionally, the evaporator fan 3 is a centrifugal fan. The centrifugal fan is characterized by air inlet at the bottom and air outlet at the side wall. The working principle of the centrifugal fan is a relatively mature existing technology in this field, and will not be described in detail here.

[0039] Furthermore, the new energy refrigeration unit also includes a deflector, which is located at the air outlet of the centrifugal fan. The deflector is used to guide the airflow blown from the air outlet of the centrifugal fan to the air outlet of the first cavity, thereby further reducing wind resistance.

[0040] Optionally, continue as follows Figure 3 As shown, the condenser assembly includes a condenser core 5 and a condenser fan 6. The condenser core 5 is located above the heat-insulating inner liner 1, allowing the condenser core 5 to expel air upwards, thereby improving the performance of the new energy refrigeration unit. Furthermore, since the heat-insulating inner liner 1 made of foamed polypropylene is dark in color, it will increase heat absorption and heat load, affecting the performance of the new energy refrigeration unit. Placing the condenser core 5 above the heat-insulating inner liner 1 can effectively reduce the heat load.

[0041] Furthermore, the heat-insulating inner liner 1 and the condenser core 5 are tilted downwards at their vertical overlap to avoid the air inlet of the condenser core 5 and thus prevent any impact on the performance of the condenser core 5.

[0042] In other words, the condenser core 5 is located slightly to the left of the top of the heat-insulating inner liner 1. The top surface of the heat-insulating inner liner 1 includes a flat surface and an inclined surface. The flat surface is flush with the bottom of the condenser core 5 and is located on the right side of the condenser core 5. The inclined surface is located on the left side of the flat surface and gradually slopes downward from right to left.

[0043] In this embodiment, the insulated inner liner 1 is tilted at an angle of 14.3° relative to the condensing core 5.

[0044] It should be noted that reflective film sponge strips 8 are attached to the non-overlapping parts of the heat-insulating inner liner 1 and the condensing core 5 in the vertical direction to reduce thermal bonding. The reflective film sponge strips 8 are a relatively common material in the field and have low cost; moreover, the principle by which the reflective film sponge strips 8 function is a relatively mature existing technology in the field, and will not be described in detail here.

[0045] Optionally, the new energy refrigeration unit also includes a compressor 7, which is located on the front side of the heat-insulating inner liner 1 and on the side where the air inlet of the condenser fan 6 is located. Whether it is the wind blowing on the vehicle during driving or the air flow on the air inlet side of the condenser fan 6 during normal operation of the new energy refrigeration unit, the risk of high temperature of the compressor 7 will be reduced, thereby eliminating the need for the liquid injection solenoid valve and ensuring the normal operation of the system.

[0046] It should be noted that the "front side" mentioned above refers to... Figure 3 On the left side of the middle.

[0047] In this embodiment, compressor 7 is a variable frequency scroll compressor. Variable frequency scroll compressors are relatively lightweight and more efficient; at the same time, they can be steplessly controlled to a suitable speed via a controller area network (CAN) to reduce energy consumption. The specific operation process is a relatively mature existing technology in this field and will not be described in detail here.

[0048] The functions of compressors, evaporator assemblies, and condenser assemblies during operation are well-known in the field and will not be elaborated upon here.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A new energy refrigeration unit, characterized in that, include: The unit frame is vertically arranged; The heat-insulating inner liner (1) divides the interior of the unit frame into a first cavity and a second cavity. The air outlet and the air return port of the first cavity are located on the side of the first cavity away from the second cavity. The air outlet and the air return port of the first cavity are arranged vertically from top to bottom at intervals. The heat-insulating inner liner (1) is made of foamed polypropylene material. An evaporator assembly is located in the first cavity. The evaporator assembly includes an evaporator core (2) and an evaporator fan (3). The evaporator core (2) is vertically arranged and directly opposite the return air inlet of the first cavity. The evaporator fan (3) is located above the evaporator core (2), and the air outlet of the evaporator fan (3) is directly opposite the air outlet of the first cavity. The airflow enters from the return air inlet of the first cavity, passes through the evaporator core (2) and the evaporator fan (3), and then is blown out from the air outlet of the first cavity. A condenser assembly located within the second cavity.

2. The new energy refrigeration unit according to claim 1, characterized in that, The evaporator fan (3) is a centrifugal fan.

3. The new energy refrigeration unit according to claim 2, characterized in that, The new energy refrigeration unit also includes a flow guide shroud, which is disposed at the air outlet of the centrifugal fan. The flow guide shroud is used to guide the airflow blown out from the air outlet of the centrifugal fan to the air outlet of the first cavity.

4. The new energy refrigeration unit according to claim 1, characterized in that, The condenser assembly includes a condenser core (5) and a condenser fan (6). The condenser core (5) is located above the heat-insulating inner liner (1), allowing the condenser core (5) to blow air upwards.

5. The new energy refrigeration unit according to claim 4, characterized in that, The heat-insulating inner liner (1) and the condenser core (5) are tilted downward at their vertical overlap to avoid the air inlet of the condenser core (5).

6. The new energy refrigeration unit according to claim 5, characterized in that, The insulated inner liner (1) is tilted at an angle of 14.3° relative to the condenser core (5).

7. The new energy refrigeration unit according to claim 5, characterized in that, The heat-insulating inner liner (1) and the condensing core (5) are provided with reflective film sponge strips (8) on the non-overlapping parts in the vertical direction.

8. The new energy refrigeration unit according to claim 4, characterized in that, The new energy refrigeration unit also includes a compressor (7), which is located on the front side of the heat-insulating inner liner (1) and on the side where the air inlet of the condenser fan (6) is located.

9. The new energy refrigeration unit according to claim 8, characterized in that, The compressor (7) is a variable frequency scroll compressor.

10. The new energy refrigeration unit according to claim 1, characterized in that, The unit frame is made of aluminum alloy.

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