Vehicle-mounted refrigerator with heat dissipation system

Abstract

The utility model belongs to the technical field of vehicle-mounted refrigerators, and particularly relates to a vehicle-mounted refrigerator with a heat dissipation system. The heat dissipation assembly comprises a protective shell, a refrigeration compressor, a condenser and a fan; a refrigeration compressor is fixed in the middle of the interior of the protective shell, and a condenser connected to the refrigeration compressor is fixed to the inner side of an air inlet in one side of the protective shell; the fan is fixed on the inner side of the air outlet in the other side of the protective shell; the refrigeration compressor, the condenser and the fan are kept on the same horizontal axis; and the fan blows air outwards to form negative pressure in the protective shell, so that air forcibly passes through the condenser, and a one-way channel with air inlet on one side and air outlet on the other side is formed in the protective shell. The distribution structure among the fan, the compressor and the condenser is changed, and the use of components is reduced while the heat dissipation capability is improved, so that the reliability of the system is improved, and the power consumption is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted refrigerators, and particularly relates to a vehicle-mounted refrigerator with a heat dissipation system. Background Art

[0002] Refer to Figure 1 At present, there are four heat dissipation methods for vehicle-mounted refrigerators: From a technical level, in methods 1.1 and 2.2, because there are two fans, better air fluidity can be obtained, and the heat dissipation effect will be better. The disadvantage is that adding one more fan will lead to an increase in power consumption and a more crowded structure. Therefore, in methods 1 and 2, the use of fans is reduced. However, due to the obstacles usually existing in front of and behind the fans, the air resistance is too large, resulting in the air outlet volume of the fans being much smaller than the air intake volume, thus leading to a poor heat dissipation effect.

[0003] Therefore, in the case of a simple and clear design, it is necessary to meet the heat dissipation requirements while reducing the use of components, increasing the reliability of the system, and reducing power consumption, so as to provide a vehicle-mounted refrigerator with a heat dissipation system. Content of the Utility Model

[0004] To solve the defects and deficiencies of the prior art; the purpose of the utility model is to provide a vehicle-mounted refrigerator with a heat dissipation system that has a simple structure, reasonable design, and convenient use. It changes the distribution structure among the fan, the compressor, and the condenser, improves the heat dissipation capacity while reducing the use of components, thereby increasing the reliability of the system and reducing power consumption.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: It includes a vehicle-mounted refrigerator and a heat dissipation component; the heat dissipation component is arranged on one side of the vehicle-mounted refrigerator. Among them, the heat dissipation component includes a protection housing, a refrigeration compressor, a condenser, and a fan; a refrigeration compressor is fixed in the middle inside the protection housing, and the condenser connected to the refrigeration compressor is fixed inside the air inlet on one side of the protection housing; the fan is fixed inside the air outlet on the other side of the protection housing.

[0006] Preferably, the refrigeration compressor, the condenser, and the fan are on the same horizontal axis.

[0007] Preferably, the fan blows air outwards to form a negative pressure inside the protection housing, forcing air to pass through the condenser, so as to form a one-way channel with air intake on one side and air outlet on the other side inside the protection housing.

[0008] Preferably, shock-absorbing and buffering foot pads are arranged between the refrigeration compressor and the protection housing.

[0009] Preferably, the same spacing is maintained among the refrigeration compressor, the condenser, and the fan.

[0010] After adopting the above structure, the beneficial effects of the present utility model are as follows: It changes the distribution structure among the fan, the compressor, and the condenser, improves the heat dissipation capacity while reducing the use of components, thereby increasing the reliability of the system and reducing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the present utility model will be described in detail by the following specific embodiments and the accompanying drawings.

[0012] Figure 1 The attached drawing is the background technical drawing of the present utility model;

[0013] Figure 2 The attached drawing is the structural schematic diagram of the present utility model;

[0014] Figure 3 The attached drawing is the internal structural schematic diagram of the present utility model;

[0015] Explanation of the reference numerals in the drawings: Vehicle-mounted refrigerator 1, heat dissipation component 2, protective housing 20, refrigeration compressor 21, condenser 22, fan 23. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be described by the specific embodiments shown in the attached drawings. However, it should be understood that these descriptions are only exemplary and do not limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present utility model.

[0017] Here, it should also be noted that in order to avoid obscuring the present utility model due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present utility model are shown in the attached drawings, and other details less related to the present utility model are omitted.

[0018] Refer to Figure 2 、 Figure 3 As shown, the present specific embodiment adopts the following technical solution: It includes a vehicle-mounted refrigerator 1 and a heat dissipation component 2; the heat dissipation component 2 is arranged on one side of the vehicle-mounted refrigerator 1. Among them, the heat dissipation component 2 includes a protective housing 20, a refrigeration compressor 21, a condenser 22, and a fan 23; a refrigeration compressor 21 is fixedly installed in the middle inside the protective housing 20, and the condenser 22 connected to the refrigeration compressor 21 is fixedly installed inside the air inlet on one side of the protective housing 20; the fan 23 is fixedly installed inside the air outlet on the other side of the protective housing 20.

[0019] Among them, the refrigeration compressor 21, the condenser 22, and the fan 23 are kept on the same horizontal axis. The same spacing is maintained among the refrigeration compressor 21, the condenser 22, and the fan 23.

[0020] In addition, the fan 23 blows air outwards to form a negative pressure inside the protective housing 20, forcing air to pass through the condenser 22, thereby forming a one-way channel with air inlet on one side and air outlet on the other side inside the protective housing 20; a shock-absorbing buffer foot pad is provided between the refrigeration compressor 21 and the protective housing 20.

[0021] The design steps and principles of this specific embodiment are as follows:

[0022] System heat dissipation design: Step 1: Determine the required air volume W of the system according to the system temperature rise, where W = Q×Cp×ρ×∆T. Here: ∆T is the temperature rise, ρ is the air density, Cp is the specific heat at constant pressure of air, Q is the air flow rate, and W is the heat that a certain air flow rate can take away under a certain temperature rise. Therefore, under the same allowable temperature rise, the greater the system power consumption, the greater the air flow rate. After formula transformation, the simplified formula for calculating the system flow rate is obtained: Q = (1.76×W) / ∆T, with the unit of imperial CFM (cubic feet per minute).

[0023] Step 2: Determine the system heat dissipation air volume according to the wind speed required by the key components of the system. Heat design is to meet the heat dissipation requirements of key components. Therefore, at the initial stage of design, it is necessary to determine the minimum local wind speed that meets the heat dissipation of the components according to the power consumption, thermal resistance characteristics, and package of the key components and considering feasible heat dissipation solutions. Without special air guiding measures, this speed can be simply used as the average wind speed between the system single boards, and the required heat dissipation air volume of the system is calculated based on this.

[0024] Specific duct design: Reasonable air inlet and outlet settings and air passages are required to ensure that most of the air flow passes through the heat-generating parts. Therefore, there should be no large-sized obstacles near the fan. Place the fan at one end far from the condenser. There is no obstruction on the air suction side of the fan, the air resistance is small, the air suction volume increases, and thus the air outlet volume increases.

[0025] The structure of the traditional in-vehicle refrigerator is that the fan is placed in front of and behind the condenser, forming two structures: housing - condenser - fan - compressor - housing or housing - fan - condenser - compressor - housing. According to the above requirements, now the fan is placed on the side far from the condenser, forming the structure of housing - condenser - compressor - fan - housing.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

[0027] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vehicle refrigerator with a heat dissipation system, characterized in that: It includes a vehicle refrigerator and a heat dissipation component; the heat dissipation component is arranged on one side of the vehicle refrigerator, wherein the heat dissipation component includes a protective shell, a refrigeration compressor, a condenser, and a fan; a refrigeration compressor is fixed in the middle of the protective shell, and the condenser connected to the refrigeration compressor is fixed on the inner side of the air inlet on one side of the protective shell; the fan is fixed on the inner side of the air outlet on the other side of the protective shell.

2. The vehicle refrigerator with a heat dissipation system according to claim 1, characterized in that: The refrigeration compressor, condenser and fan are kept on the same horizontal axis.

3. The vehicle refrigerator with a heat dissipation system according to claim 2, characterized in that: The fan blows air outward to form a negative pressure inside the protective shell, so that the air is forced to pass through the condenser, thereby forming a one-way channel in the protective shell with air inlet on one side and air outlet on the other side.

4. The vehicle refrigerator with a heat dissipation system according to claim 2, characterized in that: A shock-absorbing cushion is arranged between the refrigeration compressor and the protective shell.

5. The vehicle refrigerator with a heat dissipation system according to claim 2, characterized in that: The refrigeration compressor, condenser and fan are kept at the same distance from each other.

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