Heat dissipation mechanism of refrigerator with rear armrest

Abstract

The utility model discloses a heat dissipation mechanism of a refrigerator with rear armrests, which comprises a box body, and a condensing device and a ventilation side plate covering the condensing device are arranged on the rear side of the box body. The lower side face of the ventilation side plate is provided with an air inlet, and the upper side face of the ventilation side plate is provided with an air outlet which jointly form a heat dissipation air channel from bottom to top. The air inlet and the air outlet are provided with a first arc flow guide strip and a second arc flow guide strip correspondingly so as to optimize airflow guide. By means of the reasonable heat dissipation structure design, mixing of cold air flow and hot air flow is avoided, the heat exchange efficiency is improved, meanwhile, space utilization is optimized, the vehicle-mounted air conditioner is suitable for the vehicle-mounted environment with the limited space, the good refrigeration effect can still be kept under the extreme condition, and the vehicle-mounted air conditioner has remarkable innovativeness and practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted refrigerators, in particular to a heat dissipation mechanism of a rear-row armrest refrigerator. Background Art

[0002] As a portable refrigeration device, car refrigerators are widely used in long-distance travel, camping, outdoor activities and other occasions to provide users with the function of refrigerating or freezing food and beverages. At present, most car refrigerators on the market adopt passive or active heat dissipation. Active heat dissipation mainly uses a fan device to force air flow. However, in some refrigerator designs, the air inlet and outlet positions of heat dissipation are not designed reasonably, which easily causes the mixing of cold and hot air flows and reduces the heat exchange efficiency. In addition, the use scenario of car refrigerators is in the car with limited space, and the refrigerator structure design is also relatively compact. The existing heat dissipation structure is difficult to make full use of the limited space to improve the heat dissipation efficiency, thus limiting the performance of car refrigerators in extreme environments. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a heat dissipation mechanism for a rear armrest refrigerator, which has the characteristics of high heat dissipation efficiency and simple structure.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A heat dissipation mechanism for a rear armrest refrigerator comprises a box body, a condensing device is arranged on the rear side of the box body, a ventilation side panel for covering the condensing device is arranged on the rear end surface of the box body, the ventilation side panel comprises an air inlet located on the lower side and an air outlet located on the upper side, the condensing device comprises a heat dissipation fan and a condenser tube assembly arranged above the heat dissipation fan, a heat dissipation duct that enables air to flow from bottom to top is formed between the ventilation side panel and the box body, the condensing device is arranged in the middle of the heat dissipation duct, the ventilation side panel is inclined in the up and down directions, and forms an inclination angle α with the horizontal direction, and the inclination angle α is 30°<α<90°.

[0006] The condensing device further comprises a bracket, an upper end surface of the bracket is formed with an installation inclined surface for installing a heat dissipation fan, and the installation inclined surface is perpendicular to the inner side surface of the ventilation side plate.

[0007] The condenser tube assembly comprises condenser tubes which are stacked into a plurality of layers along an up-and-down bend, and the up-and-down stacking direction of the condenser tubes is perpendicular to the installation inclined surface.

[0008] A plurality of heat dissipation tubes are arranged on the condenser tube, and the condenser tubes and the heat dissipation tubes are arranged in a horizontal and vertical manner in the same plane.

[0009] The air inlet comprises a plurality of transversely arranged first circular arc guide strips provided on the outer side surface of the ventilation side plate, and a first guide port for supplying cold air into the heat dissipation air duct is formed under each first circular arc guide strip.

[0010] The air outlet comprises a plurality of transversely arranged second circular arc guide strips provided on the outer side surface of the ventilation side plate, and each of the second circular arc guide strips forms a second guide outlet for the hot air to be discharged from the heat dissipation duct.

[0011] The beneficial effects of the utility model are:

[0012] 1. Improve heat exchange efficiency: By setting the air inlet and outlet on the lower and upper sides of the ventilation side panel respectively, one-way air circulation from bottom to top is achieved, avoiding the mixing of cold and hot air flows, and significantly enhancing the heat exchange efficiency; and the heat dissipation mechanism is arranged at the rear end of the refrigerator to minimize the impact of the heat exchange airflow on the occupants of the vehicle.

[0013] 2. Optimize space utilization: The ventilation side panels form an inclination angle α with the horizontal, which increases the effective length of the heat dissipation duct, makes the air flow path smoother, and makes full use of the limited space inside the vehicle.

[0014] 3. Enhanced heat dissipation effect: The mounting bevel on the bracket is perpendicular to the inner side of the ventilation side panel, ensuring that the airflow fully flows through the condenser assembly in the heat dissipation duct under the drive of the cooling fan, thereby enhancing the heat dissipation effect; the condenser tubes and the heat dissipation tubes of the condensing device are arranged horizontally and vertically in the same plane, forming an efficient heat conduction network and accelerating the dissipation of heat; the design of the first arc guide strip and the second arc guide strip at the air inlet and outlet effectively guides the airflow direction, reduces air flow resistance, and improves heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the appearance structure of the car refrigerator;

[0016] Figure 2 It is a schematic diagram of the structure of the condensing device in the heat dissipation duct;

[0017] Figure 3 It is a cross-sectional schematic diagram of the heat dissipation duct and the condensation device;

[0018] Figure 4 is a schematic diagram of the structure of the condensing device;

[0019] Figure 5 It is a structural diagram of the air inlet and outlet. DETAILED DESCRIPTION

[0020] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0021] Reference Figure 1-3 The utility model proposes a heat dissipation mechanism of a rear armrest refrigerator, comprising a box body 1, a condensing device 2 is arranged at the rear side of the box body, a ventilation side panel 3 for covering the condensing device 2 is arranged at the rear end face of the box body, the ventilation side panel 3 comprises an air inlet 30 located at the lower side and an air outlet 31 located at the upper side, the condensing device 2 comprises a heat dissipation fan 21 and a condensing pipe assembly 22 arranged above the heat dissipation fan 21, a heat dissipation duct 4 is formed between the ventilation side panel 3 and the box body 1 so that air can flow from bottom to top, the condensing device 2 is arranged in the middle of the heat dissipation duct 4, the ventilation side panel 3 is arranged in an inclined manner in the up-down direction, and forms an inclination angle α with the horizontal direction, the inclination angle α is 30°<α<90°, preferably, 60°≤α≤70°. The setting of the inclination angle α increases the effective length of the heat dissipation duct 4 to a certain extent, and makes the air flow path smoother.

[0022] Furthermore, by respectively arranging the air inlet 30 and the air outlet 31 on the lower and upper sides of the ventilation side panel 3, one-way air circulation from bottom to top is achieved, and since the cold air and the hot air have different densities, the cold air is usually distributed below the hot air, which further avoids the mixing of the cold and hot air flows and significantly enhances the heat exchange efficiency.

[0023] The heat dissipation mechanism is arranged at the rear end of the refrigerator, and the refrigerator is generally located at the armrest position of the rear seat. Relative to the occupants in the car, the heat dissipation mechanism is close to the trunk position. On the one hand, it reduces the impact of the fan noise on the occupants in the car, and on the other hand, it reduces the impact of the heat exchange airflow on the occupants in the car, thereby improving the comfort of the interior space.

[0024] Reference Figure 3 and Figure 4 The condensing device 2 further includes a bracket 20, and an upper end surface of the bracket 20 is formed with an installation slope 200 for installing a cooling fan 21, and the installation slope 200 is perpendicular to the inner side surface of the ventilation side plate 3. Further, this design ensures that under the drive of the cooling fan 21, the airflow fully flows through the condensing pipe assembly 22 in the cooling air duct 4, thereby enhancing the cooling effect.

[0025] Reference Figure 4The condenser assembly 22 includes condenser tubes 220 stacked in several layers along the upper and lower bends, and the upper and lower stacking direction of the condenser tubes 220 is perpendicular to the installation slope 200, so that the airflow passing through the heat dissipation fan 21 can be blown vertically into the condenser tubes 220. Furthermore, the condenser tubes 220 maximize the heat dissipation area, form an efficient heat conduction network, and accelerate the heat dissipation.

[0026] Reference Figure 4 A plurality of heat dissipation tubes 221 are arranged on the condenser tube 220 , and the condenser tube 220 and the heat dissipation tube 221 are arranged in a horizontally and vertically interlaced manner in the same plane.

[0027] Reference Figure 5 The air inlet 30 includes a plurality of transversely arranged first arc guide strips 300 provided on the outer side of the ventilation side panel 3, and a first guide port 301 for supplying cool air into the heat dissipation duct 4 is formed under each first arc guide strip 300, so that the air sucked into the heat dissipation duct 4 is taken from the cooler air below.

[0028] Reference Figure 5 The air outlet 31 includes a plurality of second arc guide strips 310 arranged laterally on the outer side of the ventilation side panel 3. A second guide outlet 311 for hot air to be discharged from the heat dissipation duct 4 is formed on each second arc guide strip 310, so that the hot air discharged from the heat dissipation duct 4 goes upward, further avoiding the mixing of cold and hot air flows, and significantly enhancing the heat exchange efficiency.

[0029] Furthermore, the design of the first arc guide strip 300 and the second arc guide strip 301 at the air inlet 30 and the air outlet 31 effectively guides the airflow direction, reduces air flow resistance, and improves heat dissipation efficiency.

Claims

1. A heat dissipation mechanism for a rear armrest refrigerator, characterized in that: The invention comprises a housing (1), a condensing device (2) being arranged at the rear side of the housing, a ventilation side panel (3) being arranged at the rear end face of the housing for covering the condensing device (2), the ventilation side panel (3) comprising an air inlet (30) located at the lower side and an air outlet (31) located at the upper side, the condensing device (2) comprising a cooling fan (21) and a condensing pipe assembly (22) arranged above the cooling fan (21), a cooling air duct (4) being formed between the ventilation side panel (3) and the housing (1) for allowing air to flow from bottom to top, the condensing device (2) being arranged in the middle of the cooling air duct (4), the ventilation side panel (3) being arranged to be inclined in the up-down direction, and forming an inclination angle α with the horizontal direction, wherein 30°<α<90°.

2. The heat dissipation mechanism of a rear armrest refrigerator according to claim 1, characterized in that: The condensing device (2) further comprises a bracket (20), the upper end surface of the bracket (20) being formed with a mounting bevel (200) for mounting a cooling fan (21), the mounting bevel (200) being perpendicular to the inner side surface of the ventilation side panel (3).

3. The heat dissipation mechanism of a rear armrest refrigerator according to claim 2, characterized in that: The condenser tube assembly (22) comprises condenser tubes (220) stacked into a plurality of layers along an up-and-down bend, and the up-and-down stacking direction of the condenser tubes (220) is perpendicular to the installation slope (200).

4. The heat dissipation mechanism of a rear armrest refrigerator according to claim 3, characterized in that: A plurality of heat dissipation tubes (221) are arranged on the condensing tube (220), and the condensing tube (220) and the heat dissipation tubes (221) are arranged in a horizontally and vertically interlaced manner in the same plane.

5. The heat dissipation mechanism of a rear armrest refrigerator according to claim 1, characterized in that: The air inlet (30) comprises a plurality of transversely arranged first circular arc guide strips (300) provided on the outer side surface of the ventilation side plate (3), and a first guide port (301) for supplying cold air into the heat dissipation air duct (4) is formed under each first circular arc guide strip (300).

6. The heat dissipation mechanism of a rear armrest refrigerator according to claim 1, characterized in that: The air outlet (31) comprises a plurality of transversely arranged second circular arc guide strips (310) provided on the outer side surface of the ventilation side plate (3), and each second circular arc guide strip (310) forms a second guide outlet (311) for hot air to be discharged from the heat dissipation duct (4).

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