DC-DC series heat dissipation system for mine car

Abstract

The invention relates to the technical field of vehicle heat dissipation, and discloses a mine car DCDC series heat dissipation system which comprises a water-cooling heat dissipation assembly, the water way output end of the water-cooling heat dissipation assembly is connected with a water pump, and a gas-electricity DCDC and a boost DCDC are arranged between the output end of the water pump and the water way input end of the water-cooling heat dissipation assembly. The gas-electricity DCDC and the boost DCDC are connected in series through a water cooling pipeline; according to the invention, heat dissipation temperature matching of different heat dissipation requirements in the same system can be realized.

Description

Technical Field

[0001] The present application relates to the field of vehicle heat dissipation technology, and in particular to a DCDC series heat dissipation system for a mining vehicle. Background Art

[0002] For high-power hydrogen mining vehicles, the power system is mainly composed of a fuel cell system, a power battery system and a boost DCDC system; the fuel cell system includes a DCDC system, which requires water cooling, and the boost DCDC system also requires water cooling. In order to optimize the cooling system, the two DCDC systems usually share a cooling system. If the power and heat generation of the two DCDCs are different, the requirements for cooling power and inlet and outlet temperatures are also different, which makes it difficult to match the radiator.

[0003] Application Contents

[0004] The purpose of the present application is to provide a mining car DCDC series cooling system that can achieve cooling temperature matching for different cooling requirements in the same system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A DCDC series heat dissipation system for a mining vehicle of the present invention comprises a water-cooling heat dissipation component, wherein a water output end of the water-cooling heat dissipation component is connected to a water pump, a fuel-electric DCDC and a boost DCDC are arranged between the output end of the water pump and the water input end of the water-cooling heat dissipation component, and the fuel-electric DCDC and the boost DCDC are connected in series through a water cooling pipeline.

[0007] Furthermore, the water circuit output end of the fuel-electric DCDC is connected to the water circuit input end of the water-cooling heat dissipation component, and the water circuit input end of the boost DCDC is connected to the output end of the water pump.

[0008] Furthermore, the water circuit output end of the boost DCDC is connected to the water circuit input end of the water cooling and heat dissipation component, and the water circuit input end of the fuel-electric DCDC is connected to the output end of the water pump.

[0009] Furthermore, the water-cooling heat dissipation component includes a radiator connected to the water pump and the fuel-electric DCDC or the boost DCDC, and the radiator is connected to a fan for cooling the coolant and an expansion water tank for storing expansion water.

[0010] Compared with the prior art, the beneficial effects of this application are:

[0011] The fuel-electric DCDC and the boost DCDC are arranged between the output end of the water pump and the water circuit input end of the water-cooled heat dissipation component, and the fuel-electric DCDC and the boost DCDC are connected in series through a water-cooling pipeline, that is, when the calorific value of the boost DCDC is △t1, the calorific value of the fuel-electric DCDC is △t2, the temperature requirement of the coolant at the input end of the fuel-electric DCDC is T2, the temperature requirement of the coolant at the input end of the boost DCDC is T1, the temperature of the coolant at the input end of the water-cooled heat dissipation component is T3, and T2=T1+△t1 or T1=T2+△t2, the boost DCDC and the fuel cell DCDC can share a set of water-cooled heat dissipation system, saving costs; the cooling water circuits of the boost DCDC and the fuel cell DCDC are connected in series, according to the different calorific value and inlet temperature requirements of the DCDC, the inlet and outlet temperature requirements of the two sets of DCDC are met at the same time, and the present application can achieve heat dissipation temperature matching of different heat dissipation requirements in the same system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of an implementation structure of the present application;

[0014] Figure 2 It is another schematic diagram of the implementation structure of the present application. DETAILED DESCRIPTION

[0015] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0016] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show the layers related to the present invention rather than being drawn according to the number, shape and size of the layers in actual implementation. In actual implementation, the type, quantity and proportion of each layer may be changed arbitrarily, and the layer layout may also be more complicated.

[0017] In the following description, numerous details are discussed to provide a more thorough explanation of embodiments of the present invention; however, it is apparent to one skilled in the art that embodiments of the present invention may be practiced without these specific details.

[0018] See also Figure 1 and Figure 2 A DCDC series heat dissipation system for a mine car includes a water-cooled heat dissipation component, wherein the water output end of the water-cooled heat dissipation component is connected to a water pump, and a fuel-electric DCDC and a boost DCDC are arranged between the output end of the water pump and the water input end of the water-cooled heat dissipation component, and the fuel-electric DCDC and the boost DCDC are connected in series through a water cooling pipeline.

[0019] The fuel-electric DCDC and the boost DCDC are arranged between the output end of the water pump and the water circuit input end of the water-cooled heat dissipation component, and the fuel-electric DCDC and the boost DCDC are connected in series through a water-cooling pipeline, that is, when the calorific value of the boost DCDC is △t1, the calorific value of the fuel-electric DCDC is △t2, the temperature requirement of the coolant at the input end of the fuel-electric DCDC is T2, the temperature requirement of the coolant at the input end of the boost DCDC is T1, the temperature of the coolant at the input end of the water-cooled heat dissipation component is T3, and T2=T1+△t1 or T1=T2+△t2, the boost DCDC and the fuel cell DCDC can share a set of water-cooled heat dissipation system, saving costs; the cooling water circuits of the boost DCDC and the fuel cell DCDC are connected in series, according to the different calorific value and inlet temperature requirements of the DCDC, the inlet and outlet temperature requirements of the two sets of DCDC are met at the same time, and the present application can achieve heat dissipation temperature matching of different heat dissipation requirements in the same system.

[0020] See also Figure 1 and Figure 2 The water output end of the fuel-electric DCDC is connected to the water input end of the water-cooling heat dissipation component, and the water input end of the boost DCDC is connected to the output end of the water pump.

[0021] See also Figure 1 and Figure 2 The water output end of the boost DCDC is connected to the water input end of the water cooling component, and the water input end of the fuel-electric DCDC is connected to the output end of the water pump.

[0022] The positions of the fuel-electric DCDC and the boost DCDC can be swapped, which can increase the fault tolerance of the vehicle installation and improve the installation efficiency.

[0023] See also Figure 1 and Figure 2The water-cooling heat dissipation component includes a radiator connected to the water pump and the fuel-electric DCDC or the boost DCDC, and the radiator is connected to a fan for cooling the coolant and an expansion water tank for storing the expansion water.

[0024] After the radiator cools the coolant through the fan, the coolant is output to the fuel-electric DCDC and boost DCDC through the water pump for heat dissipation. At the same time, the expansion water tank stores the expansion water and plays an exhaust role.

[0025] In the above-mentioned embodiments, although the present invention has been described in conjunction with the specific embodiments of the present invention, many replacements, modifications and variations of these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description. The embodiments of the present invention are intended to cover all such replacements, modifications and variations falling within the broad scope of the appended claims.

[0026] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A DCDC series cooling system for a mine car, characterized by: It includes a water-cooled heat dissipation component, wherein the water output end of the water-cooled heat dissipation component is connected to a water pump, a fuel-electric DCDC and a boost DCDC are arranged between the output end of the water pump and the water input end of the water-cooled heat dissipation component, and the fuel-electric DCDC and the boost DCDC are connected in series through a water cooling pipeline.

2. A mine car DCDC series heat dissipation system according to claim 1, characterized in that: The water circuit output end of the fuel-electric DCDC is connected to the water circuit input end of the water-cooling heat dissipation component, and the water circuit input end of the boost DCDC is connected to the output end of the water pump.

3. A mining car DCDC series cooling system according to claim 1, characterized in that: The water circuit output end of the boost DCDC is connected to the water circuit input end of the water cooling and heat dissipation component, and the water circuit input end of the fuel-electric DCDC is connected to the output end of the water pump.

4. A mining car DCDC series heat dissipation system according to claim 1, characterized in that: The water-cooling heat dissipation component includes a radiator connected to the water pump and the fuel-electric DCDC or the boost DCDC, and the radiator is connected to a fan for cooling the coolant and an expansion water tank for storing expansion water.

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