Vehicle-mounted refrigerator heat dissipation structure, vehicle-mounted refrigerator and vehicle

Abstract

The utility model provides a kind of vehicle-mounted refrigerator heat dissipation structure, vehicle-mounted refrigerator and vehicle, it is related to vehicle parts technical field.Vehicle-mounted refrigerator heat dissipation structure includes radiator and the radiator corresponding heat dissipation fan, vehicle-mounted refrigerator heat dissipation structure further includes cover body structure, cover body structure is covered from the bottom of radiator in radiator and heat dissipation fan.In the hot end switching of semiconductor module is cold end, even if condensate is generated on radiator, cover body structure can receive this condensate, will not influence passenger riding experience, also can avoid condensate to pass through car floor and influence the safety of wire harness below car floor, the cover body structure can be configured as can guide the airflow direction that heat dissipation fan blows out, when heat dissipation fan works, the wind that it blows out can be orderly and along predetermined direction flow under the guidance of cover body structure, beneficial to reduce air flow resistance.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, specifically to a vehicle refrigerator heat dissipation structure, a vehicle refrigerator, and a vehicle. Background Technology

[0002] With the advancement of technology and the progress of the times, automobiles are no longer just a means of transportation; they have become more intelligent and technologically advanced. The rise of electric and intelligent vehicles, in particular, has led to a growing demand for in-vehicle equipment. Car refrigerators, as a common accessory, provide convenient food and beverage storage, greatly enhancing the user experience, especially during long journeys and in high-temperature environments. Currently, car refrigerators typically employ semiconductor refrigeration technology. Based on the thermoelectric effect, cooling is achieved by generating a heating or cooling effect when current flows through a semiconductor module. Specifically, when the semiconductor module starts operating, the current flowing through it creates a temperature difference between its two ends. The cold end cools the interior through a cooling block, while the hot end requires a radiator and fan for heat dissipation.

[0003] However, when the car refrigerator needs to maintain its heating and insulation function, the direction of the current flowing into the semiconductor module needs to be reversed to switch between hot and cold sides. Because the hot side becomes the cold side after this switching, condensation easily forms on the radiator. This condensation drips onto the car floor and may seep through, posing a safety hazard to the wiring harness located underneath. Furthermore, the condensation dripping onto the floor can easily spread to areas visible to passengers, affecting their comfort. Especially when the fan connected to the radiator is operating, the condensation is blown erratically in all directions, further impacting the passenger experience. Utility Model Content

[0004] This utility model aims to solve at least one of the above-mentioned problems.

[0005] To solve the above problems, this utility model provides a vehicle refrigerator heat dissipation structure, including a radiator and a cooling fan corresponding to the radiator. The vehicle refrigerator heat dissipation structure also includes a cover structure, which covers the radiator and the cooling fan from the bottom of the radiator.

[0006] The vehicle refrigerator heat dissipation structure provided by this utility model is typically located at the storage compartment end of the semiconductor module away from the vehicle refrigerator (this end is usually the hot end of the semiconductor module). Compared with traditional vehicle refrigerator heat dissipation structures, this structure, in addition to the radiator and cooling fan, also includes a cover structure. This cover structure covers the radiator and cooling fan from the bottom, that is, the cover structure covers the radiator and cooling fan from below. Thus, when the hot end of the semiconductor module switches to the cold end, even if condensation occurs on the radiator, the cover structure can catch the condensation, preventing it from dripping onto the vehicle floor and spreading into the passenger's field of vision, thus not affecting the passenger's riding experience. It also prevents condensation from affecting the safety of the wiring harness under the vehicle floor. Furthermore, based on the cover structure covering the radiator and cooling fan, the cover structure can be configured to guide the airflow direction of the cooling fan. When the cooling fan is working, the airflow can flow orderly and in a predetermined direction under the guidance of the cover structure, which helps reduce airflow resistance and improve the heat dissipation efficiency of the radiator.

[0007] Furthermore, a space is provided between the bottom end of the radiator and the bottom wall of the cover structure.

[0008] Furthermore, a bottom air guide structure is provided between the bottom wall of the cover structure and the bottom end of the radiator.

[0009] Furthermore, the bottom air guide structure includes multiple parallel ribs disposed on the bottom wall of the cover structure, and the extending direction of the ribs is consistent with the extending direction of the heat dissipation fins of the radiator.

[0010] Furthermore, the cover structure includes two first sidewalls arranged along a set direction, wherein the set direction is parallel to the arrangement direction of the plurality of heat dissipation fins of the heat sink; From the middle of the first sidewall to its two ends, the first sidewall has a middle portion and connecting portions located at both ends of the middle portion; the top of the middle portion is supported by the fin base of the radiator, the top of the connecting portions is higher than the top of the middle portion, and the top of the connecting portions is used to connect with the bottom wall of the inner liner of the vehicle refrigerator.

[0011] Furthermore, the first sidewall also includes two outer end portions, which are located at the ends of the connecting portions that are away from the middle portion, and the tops of the outer end portions are lower than the tops of the middle portion; The cover structure also includes two opposing second sidewalls; the two second sidewalls are respectively connected between two corresponding outer end portions of the two first sidewalls, and the top of the second sidewall is lower than the fin base.

[0012] Furthermore, the cover structure includes two first sidewalls arranged along a set direction, wherein the set direction is parallel to the arrangement direction of the plurality of heat dissipation fins of the heat sink; The cover structure also includes two opposing second sidewalls, which are respectively connected between the corresponding ends of the two first sidewalls. The two second sidewalls are arc-shaped walls protruding outward from the cover structure, and the distance between the two second sidewalls increases from bottom to top.

[0013] Furthermore, the portion of each first sidewall near the second sidewall is bent toward the inside of the cover structure to form a bent portion. In the direction from the end of the bent portion away from the second sidewall to the end of the bent portion near the second sidewall, the distance between corresponding two bent portions of the two first sidewalls decreases.

[0014] This utility model also provides a vehicle refrigerator, including the vehicle refrigerator heat dissipation structure as described above.

[0015] Since the technological improvements and effects of the vehicle refrigerator are the same as those of the vehicle refrigerator's heat dissipation structure, the vehicle refrigerator will not be described in detail again.

[0016] This utility model also provides a vehicle, including the vehicle-mounted refrigerator as described above.

[0017] Since the technological improvements and effects of the vehicle are the same as those of the in-vehicle refrigerator, the vehicle will not be described in detail again. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the heat dissipation structure of the vehicle-mounted refrigerator according to an embodiment of the present utility model; Figure 2 This is a rear sectional view of the heat dissipation structure of the vehicle refrigerator according to an embodiment of the present utility model; Figure 3 This is a front sectional view of the heat dissipation structure of the vehicle refrigerator according to an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Radiator; 11. Fin base; 12. Radiator fins; 2. Radiator fan; 3. Cover structure; 31. Bottom wall; 311. Rib; 32. First side wall; 321. Middle part; 322. Connecting part; 323. Outer end part; 324. Bending part; 33. Second side wall. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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.

[0022] Furthermore, in the attached drawings, the Z-axis represents the vertical direction, that is, the up-down direction, with the positive Z-axis indicating up and the negative Z-axis indicating down; the Y-axis represents the horizontal direction, that is, the left-right direction, with the positive Y-axis indicating left and the negative Y-axis indicating right. It should also be noted that the aforementioned representations of the Z-axis and Y-axis are merely for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Unless specifically stated otherwise, the term "connection" can refer to a direct connection or an indirect connection.

[0023] See Figure 1 An embodiment of the present invention provides a vehicle-mounted refrigerator heat dissipation structure, including a radiator 1 and a cooling fan 2 corresponding to the radiator 1. The vehicle-mounted refrigerator heat dissipation structure also includes a cover structure 3, which covers the radiator 1 and the cooling fan 2 from the bottom.

[0024] The vehicle refrigerator heat dissipation structure of this embodiment is usually arranged at the storage box end of the semiconductor module away from the vehicle refrigerator (this end is usually the hot end of the semiconductor module). Compared with the traditional vehicle refrigerator heat dissipation structure, this vehicle refrigerator heat dissipation structure, in addition to arranging the radiator 1 and the cooling fan 2, also provides a cover structure 3. The cover structure 3 covers the radiator 1 and the cooling fan 2 from the bottom, that is, the cover structure 3 covers the radiator 1 and the cooling fan 2 from below.

[0025] Thus, after the hot end of the semiconductor module is switched to the cold end, even if condensation occurs on the heat sink 1, the cover structure 3 can catch the condensation, thereby preventing the condensation from dripping onto the vehicle floor and spreading into the passenger's field of vision, thus not affecting the passenger's riding experience, and also preventing the condensation from affecting the safety of the wiring harness under the vehicle floor through the vehicle floor.

[0026] Furthermore, based on the cover structure 3 covering the radiator 1 and the cooling fan 2, the cover structure 3 can be configured to guide the airflow direction of the cooling fan 2, so that when the cooling fan 2 is working, the air it blows can flow in an orderly manner and in a predetermined direction under the guidance of the cover structure 3, which helps to reduce airflow resistance and improve the heat dissipation efficiency of the radiator 1.

[0027] It should be noted that, in order to facilitate the distinction between the two heat exchange ends of the semiconductor, when the storage compartment of the car refrigerator is used as a regular refrigerator, the heat exchange end where the hot end of the semiconductor is located is referred to as the first end of the semiconductor, and the heat exchange end where the cold end of the semiconductor is located corresponding to the storage compartment is referred to as the second end of the semiconductor.

[0028] When the hot end of the semiconductor module is switched to the cold end, that is, when the storage box of the car refrigerator is used as a warm box, the first end of the semiconductor becomes the cold end. At this time, even if condensation occurs on the original heat sink 1 (that is, the heat sink 1 at the first end of the semiconductor), the cover structure 3 can also receive the condensation and prevent the condensation from dripping onto the car floor.

[0029] Furthermore, regardless of whether the storage compartment of the car refrigerator is used as a refrigerator or a warmer, the cooling fan 2 at the first end of the semiconductor generally operates to improve the overall cooling or warming effect of the car refrigerator and accelerate heat exchange efficiency. When the storage compartment of the car refrigerator is used as a refrigerator, that is, when the first end of the semiconductor is the hot end, although condensation will not occur on the radiator 1, the cover structure 3 is configured to guide the airflow direction of the cooling fan 2. When the cooling fan 2 is working, the air it blows out can flow in an orderly manner and in a predetermined direction under the guidance of the cover structure 3, which helps to reduce airflow resistance and thus improve the heat dissipation efficiency of the radiator 1 at the first end of the semiconductor.

[0030] When the storage compartment of the car refrigerator is used as a warming box, that is, when the first end of the semiconductor is switched to cold end use, the heat sink 1 of the first end of the semiconductor is prone to condensation. When the corresponding hot end fan is working, the air blown by the fan can easily blow the heat sink 1 to various places in an unpredictable manner. However, in this embodiment, since the cover structure 3 is configured to guide the airflow direction of the cooling fan 2, when the cooling fan 2 is working, the air blown by it can flow in an orderly manner and in a predetermined direction under the guidance of the cover structure 3. This not only helps to reduce airflow resistance, but also prevents the condensation from being blown by the fan to various places. Ultimately, the condensation is basically retained inside the cover structure 3.

[0031] It is understandable that even if radiator 1 produces condensate, the amount of condensate produced will not be excessive. After the condensate is stored in the cover structure 3, it will evaporate naturally.

[0032] Optionally, see Figure 2 A space is provided between the bottom end of the radiator 1 and the bottom wall 31 of the cover structure 3.

[0033] In this embodiment, the bottom end of the radiator 1 is not in contact with the bottom wall 31 of the cover structure 3, but has a gap space. In this way, when the radiator 1 produces condensate, the condensate can be stored in the gap space. The level of the stored condensate is generally not higher than the bottom end of the radiator 1, thereby preventing the stored condensate from affecting the fan's airflow and heat exchange to the radiator 1.

[0034] Optionally, a bottom air guide structure is provided between the bottom wall 31 of the cover structure 3 and the bottom end of the radiator 1.

[0035] In this embodiment, the airflow guiding structure mainly functions when the first end of the semiconductor is a hot end. Specifically, when the first end of the semiconductor is a hot end, the heat sink 1 at this end dissipates heat under the action of the cooling fan 2. Since there is a gap between the bottom end of the heat sink 1 and the bottom wall 31 of the cover structure 3, there will also be a certain amount of airflow in the gap when the cooling fan 2 is working. Thus, the airflow in the gap is guided by the airflow guiding structure, thereby improving the overall heat dissipation efficiency.

[0036] Optionally, see Figure 3 The radiator 1 includes a fin base 11 and a plurality of parallel heat dissipation fins 12 disposed on the lower side of the fin base 11; the bottom air guide structure includes a plurality of parallel ribs 311 disposed on the bottom wall 31 of the cover structure, and the extending direction of the ribs 311 is consistent with the extending direction of the heat dissipation fins 12.

[0037] In this embodiment, as shown in the figure, multiple heat dissipation fins 12 are distributed sequentially at intervals along the Y-axis direction, with the thickness direction of the heat dissipation fins 12 also being along the Y-axis direction. Furthermore, the extension direction of the ribs 311 is along the X-axis direction, consistent with the extension direction of the heat dissipation fins 12. Multiple parallel ribs 311 divide the airflow within the interval space into multiple relatively small flow regions. The airflow velocity and direction within each region are more uniform, making it more orderly and reducing disordered airflow collisions and turbulence. This reduces the generation of turbulence and vortices, thus helping to reduce the flow resistance of the airflow in the interval space. In addition, the ribs 311 also strengthen the structural strength of the bottom wall 31 of the cover structure 3.

[0038] Optionally, see Figure 1 The radiator 1 includes a fin base 11 and a plurality of parallel heat dissipation fins 12 disposed on the lower side of the fin base 11. The cover structure 3 includes two first sidewalls 32 arranged in a set direction, wherein the set direction is parallel to the arrangement direction of the plurality of heat dissipation fins 12 of the radiator 1. From the middle to both ends of the first sidewall 32, the first sidewall 32 has a middle portion 321 and connecting portions 322 located at both ends of the middle portion 321; the top end of the middle portion 321 is supported by the fin base 11, the top end of the connecting portion 322 is higher than the top end of the middle portion 321, and the top end of the connecting portion 322 is used to connect with the bottom wall of the inner liner of the vehicle refrigerator.

[0039] In this embodiment, as Figure 1-2 As shown, multiple heat dissipation fins 12 are distributed sequentially at intervals along the Y-axis direction, so the Y-axis direction in the figure is the set direction. The cover structure 3 includes two first sidewalls 32 arranged along the set direction, that is, the two first sidewalls 32 are respectively located at both ends of the multiple heat dissipation fins 12 along the arrangement direction. For example, in the position shown in the figure, the left side of the multiple heat dissipation fins 12 has a first sidewall 32, and the right side of the multiple heat dissipation fins 12 also has a first sidewall 32. From the middle of the first sidewall 32 to its two ends, that is, from the middle of the first sidewall 32 towards the positive X-axis and from the middle of the first sidewall 32 towards the negative X-axis, the first sidewall 32 includes a middle part 321 and a connecting part 322. The top of the middle part 321 can support the fin base 11. After the fin base 11 overlaps the top of the middle part 321, a gap space is formed between the bottom end of the heat dissipation fin 12 and the bottom wall 31 of the cover structure 3.

[0040] Furthermore, in each first sidewall 32, the tops of the connecting portions 322 on both the front and rear sides of the middle portion 321 are higher than the top of the middle portion 321. In this way, the connecting components on both sides can limit the fin base 11 between them in the X direction. At the same time, after the top of the connecting portion 322 is higher than the middle portion 321, it can also be connected and fixed to the bottom wall of the inner liner of the refrigerator on the upper side to realize the fixation of the air guide shroud.

[0041] It should be noted that, in addition to the aforementioned vehicle refrigerator radiator structure, the vehicle refrigerator also includes an inner liner (not shown in the figure), a storage compartment (not shown in the figure), and a semiconductor module (not shown in the figure). One side wall of the inner liner has an opening through which the storage compartment can enter and exit. The semiconductor module is embedded in the bottom wall of the inner liner. The lower end of the semiconductor module is the aforementioned first semiconductor end, and the upper end of the semiconductor module is the aforementioned second semiconductor end. In this embodiment, the vehicle refrigerator radiator structure is located outside the inner liner and below the bottom wall of the inner liner. The top of the middle portion 321 of the first side wall 32 is supported by the fin base 11, and the top of the connecting portion 322 of the first side wall 32 is used to connect with the bottom wall of the inner liner to achieve the connection and fixation between the cover structure 3 and the inner liner.

[0042] Optionally, see Figure 1The first sidewall 32 further includes two outer end portions 323, which are located at the ends of the connecting portion 322 that are away from the middle portion 321, and the top of the outer end portion 323 is lower than the top of the middle portion 321. The cover structure 3 also includes two oppositely arranged second sidewalls 33; the two second sidewalls 33 are respectively connected between two corresponding outer end portions 323 of the two first sidewalls 32, and the top of the second sidewall 33 is lower than the fin base 11.

[0043] In this embodiment, each first sidewall 32 includes a middle portion 321 and connecting portions 322 on both sides of the middle portion 321, as well as two outer end portions 323 at the front and rear ends, with the top height of the outer end portions 323 lower than the top height of the middle portion 321. Thus, the two front outer end portions 323 of the two first sidewalls 32 are lower than the refrigerator liner, and the second sidewall 33 between the two outer end portions 323 is also lower than the refrigerator liner. An upward-facing vent can be formed between the second sidewall 33 and the tops of the corresponding left and right outer end portions 323. This vent is not blocked by the bottom wall 31 of the refrigerator liner, allowing for upward airflow and ensuring efficient heat dissipation.

[0044] The first sidewalls 32 on the left and right sides and the second sidewalls 33 on the front and rear sides form the sidewalls of the cover structure 3. The sidewalls of the cover structure 3 and the bottom wall 31 together form a cover to cover the radiator 1 and the cooling fan 2, which can retain condensate and ensure that the condensate will not flow out.

[0045] Optionally, see Figure 1 and Figure 3 The cover structure 3 includes two first sidewalls 32 arranged along a set direction, wherein the set direction is parallel to the arrangement direction of the plurality of heat dissipation fins 12 of the heat sink 1; The cover structure 3 also includes two opposing second sidewalls 33, which are respectively connected between the corresponding ends of the two first sidewalls 32. The two second sidewalls 33 are arc-shaped walls protruding outward from the cover structure 3, and the distance between the two second sidewalls 33 increases from bottom to top.

[0046] In this embodiment, the two second sidewalls 33 are respectively connected between the corresponding ends of the two first sidewalls 32, that is, as shown in the figure. Figure 1As shown, a second sidewall 33 is connected between the front ends of the two first sidewalls 32, and another second sidewall 33 is connected between the rear ends of the two second sidewalls 33. Furthermore, the two second sidewalls 33 are not vertical walls, but rather outwardly convex arc-shaped walls, and the distance between the two arc-shaped second sidewalls 33 increases upwards. That is, the two second sidewalls 33 are inclined towards the outside of the cover structure 3. This ensures that when air enters at one end of the air guide cover, external air can enter the air guide cover along the corresponding arc-shaped wall; when air exits at the other end of the air guide cover, the air inside the air guide cover can exit along the arc-shaped wall at the other end, ultimately reducing the flow resistance of the air entering and exiting.

[0047] Optionally, see Figure 1 and Figure 3 Each of the first sidewalls 32 is bent toward the inside of the cover structure 3 to form a bent portion 324. In the direction from the end of the bent portion 324 away from the second sidewall 33 to the end of the bent portion 324 near the second sidewall 33, the distance between the two corresponding bent portions 324 of the two first sidewalls 32 decreases.

[0048] In this embodiment, the distance between the corresponding bends 324 in the two first sidewalls 32 decreases. That is, the distance between the two bends 324 at the front of the two first sidewalls 32 decreases in the forward direction, and the distance between the two bends 324 at the rear of the two first sidewalls 32 decreases in the rearward direction. This achieves the aforementioned narrowing of the air vent. According to Bernoulli's principle and fluid dynamics, when air passes through the narrowed air vent, the air velocity increases significantly, forming a high-speed and uniform jet. This uniform jet can rapidly diffuse, covering a larger spatial area, thereby achieving efficient airflow.

[0049] Another embodiment of the present invention provides a vehicle refrigerator, which includes the vehicle refrigerator heat dissipation structure as described above.

[0050] Since the technological improvements and effects of the vehicle refrigerator are the same as those of the vehicle refrigerator's heat dissipation structure, the vehicle refrigerator will not be described in detail again.

[0051] Another embodiment of the present invention includes a vehicle comprising the vehicle-mounted refrigerator as described above.

[0052] Since the technological improvements and effects of the vehicle are the same as those of the in-vehicle refrigerator, the vehicle will not be described in detail again.

[0053] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include at least one of those features.

[0054] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

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