CN107732355A - A kind of liquid cooling plate of internal shunt - Google Patents

Abstract

The invention provides a kind of liquid cooling plate of internal shunt, including plate main body and the preceding plug for sealing plate body front end and the rear plug for sealing plate body rear, several fluid passages are provided with plate main body, the front end of plate main body forms the open front being provided with for the insertion of preceding plug, the rear end of plate main body is provided with the after-opening for the insertion of rear plug, branch chamber is provided with preceding plug, preceding plug is provided with the liquid inlet joint connected with branch chamber, the side wall of branch chamber is provided with several diffluence pass for being used to branching to the coolant for entering branch chamber from liquid inlet joint into fluid passage corresponding with fluid passage liquid feeding end respectively, the sectional area of diffluence pass is less than the sectional area of fluid passage.Compared with prior art, the liquid in-out joint of the liquid cooling plate all sets side, and increasing coolant using diffluence pass is shunting cavity pressure, coolant uniform divided flows is entered each fluid pipeline；Reduce the liquid outlet quantity of each fluid pipeline using liquid outlet, improve radiating efficiency.

Description

A liquid cold plate with internal shunt

technical field

The invention relates to the field of new energy vehicles, in particular to a liquid cold plate with internal shunt.

Background technique

With the rapid development of the automobile industry, the problems of environmental pollution, energy shortage, resource depletion and safety caused by automobiles have become more and more prominent. In order to maintain the sustainable development of the national economy, protect the human living environment and energy supply, the governments of various countries have spared no expense in investing a lot of manpower and material resources to find various ways to solve these problems. Electric vehicles have good environmental performance and can be powered by a variety of energy sources, which can not only protect the environment, but also alleviate energy shortages, adjust energy structures, and ensure energy security. At present, the development of electric vehicles has become the consensus of the governments of various countries and the automobile industry. Electric vehicles have become a hot spot in the automobile industry. In the future, electric vehicles will have more extensive application development. As the power source of electric vehicles, batteries are one of the most important components of electric vehicles. The batteries will generate heat during operation. If the heat cannot be dissipated in time, the batteries will burn or even explode, endangering the lives of drivers and passengers. Most of the existing water-cooled plates enter the water flow from the water inlet connector and directly enter the water flow channel in the water-cooled plate. The pressure of the water flow in the water-cooled plate is relatively small, so that all water flow channels cannot have water flow into it, resulting in uneven distribution of water flow in the water-cooled plate. And because the outlet end of each water flow channel is directly connected with the water outlet joint, the water flow in the water flow channel is caused to flow out quickly, and the water flow channel is difficult to keep full of cold water all the time, and the heat dissipation effect of the whole water cooling plate is not good.

Contents of the invention

In view of the above problems, the present invention provides an internal shunt liquid cold plate, which shunts the flow entering the liquid cold plate to ensure that the liquid is evenly distributed in the liquid cold plate, and the water cooling efficiency is improved to improve the heat dissipation efficiency.

The technical scheme adopted in the present invention is:

A liquid-cooled plate with internal shunt, including a plate body and a front plug for sealing the front end of the plate body and a rear plug for sealing the rear end of the plate body. There are several liquid channels in the plate body, and the front end of the plate body is formed There is a front opening for the insertion of the front plug, and a rear opening for the insertion of the rear plug at the rear end of the plate body. There is a shunt chamber in the front plug, and a liquid inlet joint connected with the shunt chamber is provided on the front plug. , the side wall of the split chamber is provided with several split ports corresponding to the liquid inlet end of the liquid channel for diverting the cooling liquid entering the split chamber from the liquid inlet joint to the liquid channel, and the cross-sectional area of the split port is smaller than that of the liquid channel. The cross-sectional area; the rear plug is provided with a mixed flow chamber, and the rear plug is provided with a liquid outlet joint connected with the mixed flow chamber. The side wall of the mixed flow chamber is provided with a number of outlets corresponding to the liquid outlets of the multiple liquid channels for use in the future. The cooling liquid flowing out from the liquid outlet end of the liquid channel is introduced into the mixed flow chamber and mixed and then flows out from the liquid outlet joint. The cross-sectional area of the liquid outlet is smaller than the cross-sectional area of the liquid channel.

Preferably, the liquid inlet joint is on one side of the front plug.

Preferably, the liquid outlet joint is on one side of the rear plug.

Preferably, the front plug is connected to the plate main body by friction welding.

Preferably, the rear plug is connected to the plate main body by friction welding.

Compared with the prior art, the beneficial effect of the present invention is that: the present invention provides a liquid-cooled plate with internal shunt, the liquid inlet and outlet joints are arranged on one side of the liquid-cooled plate, and the diversion port in the front plug is used to increase the The pressure of the cooling liquid in the distribution cavity makes the cooling liquid flow evenly into the liquid pipes; at the same time, the liquid outlet of the rear plug is used to reduce the liquid output of each liquid pipe, so that the liquid pipes are always filled with cooling liquid to improve heat dissipation efficiency.

Description of drawings

Fig. 1 is the perspective view of a kind of internal shunt liquid cooling plate provided by the present invention;

Fig. 2 is an exploded view of a liquid-cooled plate with internal shunt provided by the present invention;

Fig. 3 is a cross-sectional view of a liquid-cooled plate with internal shunt provided by the present invention;

Fig. 4 is the schematic diagram of the front plug in a kind of internal shunt liquid cooling plate provided by the present invention;

Fig. 5 is a schematic diagram of a rear plug in a liquid-cooled plate with internal shunt provided by the present invention.

detailed description

The preferred embodiments provided by the present invention will be specifically described according to the accompanying drawings.

Fig. 1 to Fig. 5 are a preferred embodiment of an internal shunt liquid cooling plate provided by the present invention. As shown in Figures 1 to 5, the liquid cooling plate includes a plate main body 10, a front plug 20 for sealing the front end of the plate main body 10 and a rear plug 30 for sealing the rear end of the plate main body 10, and the plate main body 10 is provided with Several liquid channels 11, the front end of the plate main body 10 is formed with the front opening 12 for the insertion of the front plug 20, and the rear end of the plate main body 10 is provided with the rear opening 13 for the insertion of the rear plug 30, so that the front plug 20 is inserted In the front opening 12 , the rear plug 30 is inserted into the rear opening 13 , and the cooling liquid flows in the liquid channel 11 . The panel main body 10 is directly formed by aluminum profiles.

As shown in Figures 2 to 4, the front plug 20 is provided with a shunt chamber 22, the front plug 20 is provided with a liquid inlet joint 21 communicating with the shunt chamber 22, and the side wall of the shunt chamber 22 is provided with several Corresponding to the inlet ends of the liquid passages 11, the cooling liquid entering the split chamber 22 from the liquid inlet joint 21 is divided into the split flow ports 23 of the liquid passage 11. The cross-sectional area of the split flow ports 23 is smaller than the cross-sectional area of the liquid passage 11. When the front plug 20 is inserted into the front opening 11, after the cooling liquid enters the split cavity 22 from the liquid inlet joint 21, since the cross-sectional area of the split flow port 23 is smaller than the cross-sectional area of the liquid channel 11, the cooling liquid cannot quickly completely enter the adjacent liquid inlet joint 21. In the liquid channel 11, the cooling liquid gathers in the distribution chamber 22, and the pressure increases, and the cooling liquid evenly divides into the other liquid channels 11, so that the cooling liquid enters in each liquid channel 11, and the heat dissipation efficiency is improved.

The liquid inlet joint 21 is set on one side of the front plug 20. The liquid inlet joint 21 and the front plug 20 are integrally processed by CNC without welding. ; When the front plug 20 is inserted into the front opening 12, the front plug 20 is connected with the cooling plate main body 10 by friction welding.

As shown in Figure 2, Figure 3 and Figure 5, the rear plug 30 is provided with a mixed flow chamber 32, the rear plug 30 is provided with a liquid outlet joint 31 communicating with the mixed flow chamber 32, and the side wall of the mixed flow chamber 32 is provided with There are several liquid outlets 33 respectively corresponding to the water outlets of a plurality of liquid channels 11, which are used to introduce the cooling liquid flowing out from the outlets of the liquid channels 11 into the mixing chamber 32 for mixing and then flow out from the liquid outlet joint 31. The liquid outlets 33 The cross-sectional area is smaller than the cross-sectional area of the liquid passage 11, so that the amount of cooling liquid flowing out from the liquid passage 11 is small, and the cooling liquid will fill the entire liquid passage 11, thereby enhancing the heat dissipation effect and improving the heat dissipation efficiency.

The liquid outlet joint 31 is set on one side of the rear plug 30, the liquid outlet joint 31 and the rear plug 30 are integrally processed by CNC, no welding is required, and the mixed flow chamber 32 and the mixed flow chamber 32 on the rear plug 30 are integrally formed ; When the rear plug 30 is inserted into the rear opening 13, the rear plug 30 is connected to the plate main body 10 by friction welding.

It is worth noting that both the liquid inlet joint 21 and the liquid outlet joint 31 are on the side, which saves space. In this way, when cooling the battery of a new energy vehicle, one liquid cold plate can cool two battery modules at the same time, improving cooling efficiency .

In summary, the technical solution of the present invention can fully and effectively realize the above-mentioned purpose of the invention, and the structure and functional principles of the present invention have been fully verified in the embodiments, and can achieve the expected effect and purpose without departing from the present invention. On the premise of keeping the principle and essence of the invention, various changes or modifications can be made to the embodiments of the invention. Therefore, the present invention includes all replacements within the scope mentioned in the scope of the patent application, and any equivalent changes made within the scope of the patent application for the present invention fall within the scope of the patent application of this case.

Claims (5)

1. a kind of liquid cooling plate of internal shunt, including plate main body and preceding plug for sealing plate body front end and for sealing The rear plug of plate body rear, it is characterised in that several fluid passages are provided with plate main body, the front end of plate main body, which is formed, to be provided with For the open front of preceding plug insertion, the rear end of plate main body is provided with the after-opening for the insertion of rear plug, and branch chamber is provided with preceding plug, Preceding plug is provided with the liquid inlet joint that connect with branch chamber, the side wall of branch chamber provided with several respectively with fluid passage feed liquor It is used for the diffluence pass that the coolant for entering branch chamber from liquid inlet joint is branched to fluid passage, the section of diffluence pass corresponding to end Sectional area of the product less than fluid passage；Mixed flow chamber is provided with plug afterwards, rear plug goes out liquid joint provided with what is connected with mixed flow chamber, The side wall of mixed flow chamber is provided with several respectively with multiple fluid passage outlet ends to applied to will be from fluid passage outlet end stream The coolant gone out is less than fluid passage from the liquid outlet for going out the outflow of liquid joint, the sectional area of liquid outlet again after importing the mixing of mixed flow chamber Sectional area.

2. the liquid cooling plate of internal shunt according to claim 1, it is characterised in that：Liquid inlet joint is in the one of preceding plug Side.

3. the liquid cooling plate of internal shunt according to claim 1, it is characterised in that：Go out liquid joint is in rear plug one Side.

4. the liquid cooling plate of internal shunt according to claim 1, it is characterised in that：Preceding plug uses friction welding (FW) with plate main body The mode of connecing connects.

5. the liquid cooling plate of internal shunt according to claim 1, it is characterised in that：Plug uses friction welding (FW) with plate main body afterwards The mode of connecing connects.