CN204407445U - Mouth organ channel-type heat exchanger - Google Patents

Abstract

A kind of mouth organ channel-type heat exchanger.Solve existing for pure electric automobile and serial type hybrid automobile, air heat exchanger is difficult to the problem meeting battery thermal management effect.It is characterized in that: comprise the radiating subassembly that many group intervals are arranged in parallel, radiating subassembly comprises the first current collector, the second current collector and is communicated with the cooled plate of the first current collector and the second current collector, and the first current collector is provided with two water pipe heads; Wherein the first current collector of the radiating subassembly of side connects water inlet pipe, and the first current collector of the radiating subassembly of opposite side connects outlet pipe, is interconnected between the first current collector of each radiating subassembly by middle water pipe; The cooled plate both sides of each group of radiating subassembly arrange battery, and battery and cooled plate clamp pastes jail.Its advantage is that radiating subassembly interval is arranged in parallel, and is close to jail with battery folder, and realize water-cooled effect, not only structure is more simply compact, and cost is low, and heat exchange coefficient is higher, cooling degree of heating is fast, security performance is high, better effects if.

Description

Harmonica channel heat exchanger

technical field

The utility model relates to the field of heat management systems of electric vehicles, in particular to a harmonica channel heat exchanger.

Background technique

At present, batteries for electric vehicles mainly include lead-acid batteries, nickel-hydrogen batteries and lithium-ion batteries. Relevant studies have shown that the life of lead-acid batteries decreases linearly with the increase of temperature, but the charging efficiency increases linearly, because as the battery temperature decreases, the charge acceptance capacity decreases, especially below 0°C, the temperature gradient between modules reduces the entire battery life. The capacity of the battery pack needs to maintain the uniform distribution of the temperature in the battery pack and control the temperature between 35~40°C. The efficiency and maximum operating power of the electric vehicle increase in the range of -26~65°C. The performance of nickel-hydrogen batteries is also related to temperature. When the temperature exceeds 40°C, the battery charging efficiency and battery life will be greatly reduced. At a low temperature below 0°C, the discharge capacity of the battery is much smaller than normal temperature. Lithium-ion batteries, nickel-hydrogen batteries, and lead-acid batteries have higher volume-to-power ratios, resulting in faster heat generation, so heat transfer also needs to be more efficient.

The choice of heat transfer medium has a great influence on the performance of the thermal management system. Traditional air cooling is the simplest way, just let the air flow over the battery surface, but the heat transfer coefficient between the air heat exchanger and the battery wall is low, Slow cooling and heating. The battery pack of parallel hybrid electric vehicles is not seen as auxiliary power, and the operating conditions are not very bad, so the air cooling method may meet the requirements; for pure electric vehicles and series hybrid electric vehicles, the battery pack is used as the main power. Components generate a lot of heat. In order to obtain better thermal management effects, air cooling is not ideal.

Utility model content

In order to overcome the shortcomings of the background technology, the utility model provides a harmonica channel heat exchanger, which solves the problem that the battery pack is the main power component and the air heat exchanger is difficult to meet the thermal management requirements for pure electric vehicles and series hybrid vehicles. The question of effect.

The technical solution adopted by the utility model: a harmonica channel heat exchanger, including multiple sets of heat dissipation components arranged in parallel at intervals, the heat dissipation components include a first current collector, a second current collector and several connected first collectors The water cooling plate of the current collector and the second collector, the first collector is provided with two water pipe joints; the first collector of the cooling assembly on one side is connected to the water inlet pipe, and the cooling assembly on the other side The first current collector is connected to the water outlet pipe, and the first current collectors of the heat dissipation components are connected to each other through the intermediate water pipe; batteries are arranged on both sides of the water cooling plate of each group of heat dissipation components, and the battery is clamped with the water cooling plate Stick it firmly.

There are 3 groups of the heat dissipation components.

There are two water-cooled plates for each group of heat dissipation components.

The water inlet pipe, the water outlet pipe, the intermediate water pipe and the water pipe joint are fixed by clamps.

The water pipe joints of the heat dissipation assembly in the middle position are arranged on both sides of the first collector respectively, and the water pipe joints of the heat dissipation assemblies in the two sides are arranged on the same side of the first collector and face to the middle position.

The first current collector and the second current collector are formed by stretching high-performance aluminum alloy.

The water-cooled plate is extruded from high-performance aluminum alloy.

The water inlet pipe, water outlet pipe, and intermediate water pipe are all shaped by EPDM method pattern clamping layer hot film.

The beneficial effects of the utility model are: adopting the above scheme, the heat dissipation components are arranged in parallel at intervals, and are clamped firmly with the battery to realize the water cooling effect, not only the structure is simpler and more compact, the cost is low, but also the heat transfer coefficient is higher and the cooling and heating speed is fast , High safety performance, better effect.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model embodiment is further described:

As shown in the figure, a harmonica channel heat exchanger includes 3 groups of heat dissipation components arranged in parallel at intervals, and the heat dissipation components include a first collector 1, a second collector 2 and two connected first collectors The water cooling plate 3 of the device 1 and the second collector 2, the first collector 1 is provided with two water pipe joints 4; the first collector 1 of the cooling assembly on one side is connected to the water inlet pipe 5, and the other The first collector 1 of one side of the heat dissipation assembly is connected to the water outlet pipe 6, and the first collectors 1 of each heat dissipation assembly communicate with each other through the intermediate water pipe 7; the two sides of the water cooling plate 3 of each group of heat dissipation assemblies A battery is set, and the battery is clamped firmly with the water-cooled plate 3 .

The coolant flows into the first collector 1 from the water inlet pipe 5, flows into the second collector 2 through the water cooling plate 3, then flows back to the first collector 1 from the other water cooling plate 3 and flows into the next group through the intermediate water pipe 7 The heat dissipation components flow out from the outlet pipe 6 of the last group of heat dissipation components, thus forming a cooling water circulation channel, and the battery is integrated with the harmonica channel heat exchanger, and the battery is arranged on both sides of the water cooling plate 3, water cooling Plate 3 is a plate-shaped structure, which not only facilitates the battery to clamp the water-cooled plate, but also increases its contact area and enhances the cooling effect. This structure realizes the water-cooled heat exchange effect of the battery and replaces the existing air heat exchanger. Not only the structure is more Simple and compact, low cost, higher heat transfer coefficient, fast cooling and heating, high safety performance, and better effect.

The cooling components can also be 2 groups, 3 groups, 4 groups or more, which can be set according to specific conditions.

The water cooling plates 3 of each group of heat dissipation components can be provided with 2, 4, 6 or other even numbers, and the number of 2 is the least, the structure is the simplest, and the manufacturing and installation are the most convenient.

Wherein, the water pipe joints 4 of the heat dissipation assembly in the middle position are arranged on both sides of the first collector 1 respectively, and the water pipe joints 4 of the heat dissipation assembly in the two sides are arranged on the same side of the first collector 1 and facing the middle position, The structure can be more compact, the space occupied is small, and the installation is convenient.

In addition, the first current collector 1 and the second current collector 2 are stretched and formed by high-performance aluminum alloy, and the water-cooled plate 3 is extruded and formed by high-performance aluminum alloy. The aluminum alloy has good thermal conductivity. In the heat exchange system, it can have a good heat exchange effect, and the aluminum alloy also has good strength properties, and it is easy to be formed by stretching and extrusion, and the processing is more convenient. Of course, other similar metal materials can also be used for processing and forming.

The water inlet pipe 5, the water outlet pipe 6, and the intermediate water pipe 7 are all shaped by the hot film of the EPDM method. , and can further ensure its sealing performance and high practical life.

Claims (8)

1. A harmonica channel heat exchanger, characterized in that it includes multiple sets of heat dissipation components arranged in parallel at intervals, and the heat dissipation components include a first current collector (1), a second current collector (2) and several communication The water cooling plate (3) of the first collector (1) and the second collector (2), the first collector (1) is provided with two water pipe joints (4); The first collector (1) of the component is connected to the water inlet pipe (5), and the first collector (1) of the cooling component on the other side is connected to the outlet pipe (6). The first collectors of each cooling component (1) communicate with each other through the middle water pipe (7); batteries are arranged on both sides of the water-cooled plates (3) of each group of heat dissipation components, and the batteries and the water-cooled plates (3) are clamped firmly. 2 . The harmonica channel heat exchanger according to claim 1 , wherein there are three sets of heat dissipation assemblies. 3 . 3. The harmonica channel heat exchanger according to claim 1, characterized in that there are two water-cooling plates (3) in each group of the heat dissipation components. 4. The harmonica channel heat exchanger according to claim 1, characterized in that: the water inlet pipe (5), the water outlet pipe (6), the intermediate water pipe (7) and the water pipe joint (4) are connected by clamps (8) FIXED. 5. The harmonica channel heat exchanger according to claim 1, characterized in that: the water pipe joints (4) of the heat dissipation assembly in the middle position are respectively arranged on both sides of the first collector (1), and the The water pipe joint (4) of the heat dissipation component is arranged on the same side of the first collector (1) and faces the middle position. 6 . The harmonica channel heat exchanger according to claim 1 , characterized in that: the first collector ( 1 ) and the second collector ( 2 ) are stretched and formed by high-performance aluminum alloy. 7. The harmonica channel heat exchanger according to claim 1, characterized in that: the water-cooled plate (3) is extruded from high-performance aluminum alloy. 8. The harmonica channel heat exchanger according to claim 1, characterized in that: the inlet pipe (5), the outlet pipe (6), and the intermediate water pipe (7) are all shaped by EPDM sandwich layer hot film .