Three-way valve integrating water pump and PTC

Abstract

The utility model discloses a three-way valve integrating a water pump and a PTC (Positive Temperature Coefficient), which comprises a PTC inlet, a PTC outlet, a water pump inlet and a water pump outlet which are sequentially arranged along a PTC pipeline, the water pump outlet is connected to a first port of a three-way valve body, a second port of the three-way valve body is connected to a radiator inlet, a third port of the three-way valve body is connected to a reactor inlet, and the PTC pipeline is connected to a PTC pipeline. And the PTC pipeline is provided with a PTC heating rod between the PTC inlet and the PTC outlet. According to the utility model, the water pump, the PTC and the three-way valve are integrated, so that the space occupied by a cooling pipeline in a system is greatly reduced, and the complexity of a special-shaped rubber pipe is reduced.

Description

Technical Field

[0001] The present application relates to fuel cells, and particularly to a three-way valve integrating a water pump and a PTC. Background Art

[0002] The hydrogen vehicle industry has not developed for a long time. Currently, it is mostly used in large commercial vehicles or trucks. The main reason is that fuel cells are too large. One of the main directions is to reduce the layout size, achieve lightweight, and be refined and small. If integrated or molded methods can be adopted according to the layout, the fuel cell can be made smaller. Summary of the Utility Model

[0003] The purpose of the present utility model is to provide a three-way valve integrating a water pump and a PTC, which integrates the water pump, PTC, and three-way valve into one, greatly reducing the space occupied by the cooling pipeline in the system and saving the complexity of special-shaped rubber hoses.

[0004] To achieve the above purpose, the present utility model provides the following technical solutions.

[0005] An embodiment of the present application discloses a three-way valve integrating a water pump and a PTC, including a PTC inlet, a PTC outlet, a water pump inlet, and a water pump outlet arranged in sequence along the PTC pipeline. The water pump outlet is connected to the first port of the three-way valve body, the second port of the three-way valve body is connected to the radiator inlet, the third port of the three-way valve body is connected to the inlet of the stack, and a PTC heating rod is arranged between the PTC inlet and the PTC outlet of the PTC pipeline.

[0006] At position one, the water pump outlet is communicated with the inlet of the stack, and the PTC heating rod heats up.

[0007] At position two, the radiator inlet is communicated with the inlet of the stack, and the PTC heating rod does not heat up.

[0008] Preferably, in the above three-way valve integrating a water pump and a PTC, the three-way valve body is a ball valve.

[0009] Compared with the prior art, the present utility model integrates a three-way ball valve, reduces the use of special-shaped rubber hoses and joints, reduces the space, and is easy to achieve batch production. It integrates the functions of a water pump, a PTC, and a three-way ball valve, simplifies the cooling circuit structure of the fuel cell system, and reduces the layout space size. Description of the Drawings

[0010] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 The figure shows a three-way valve integrating a water pump and a PTC in a three-dimensional view according to an embodiment of the present invention;

[0012] Figure 2 The figure shows the flow diagram of the three-way valve body at position one according to an embodiment of the present invention;

[0013] Figure 3 The figure shows the flow diagram of the three-way valve body at position two according to an embodiment of the present invention. Detailed implementation manners

[0014] The following will describe in detail the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0015] Combined with Figures 1-3 , the three-way valve 100 integrating a water pump and a PTC includes a PTC inlet 102, a PTC outlet 103, a water pump inlet 104, and a water pump outlet 105 arranged in sequence along the PTC pipeline 101. The water pump outlet 105 is connected to the first port of the three-way valve body 106. The second port of the three-way valve body 106 is connected to the radiator inlet 107, and the third port of the three-way valve body 106 is connected to the inlet of the reactor stack 108. A PTC heating rod 109 is arranged between the PTC inlet 102 and the PTC outlet 103 on the PTC pipeline 101. The three-way valve body 106 is a ball valve.

[0016] At position one, the water pump outlet 105 is communicated with the inlet of the reactor stack 108, and the PTC heating rod 109 is heated;

[0017] At position two, the radiator inlet 107 is communicated with the inlet of the reactor stack 108, and the PTC heating rod 109 is not heated.

[0018] In this technical solution, when the cold machine starts, the cooling water enters the PTC inlet from the fuel cell stack, is heated by the heating rod inside the PTC. When the three-way valve opens the inlet of the reactor stack and closes the radiator inlet, the water pump sends the heated cooling water into the fuel cell stack to enable the fuel cell stack to reach the starting temperature.

[0019] When the system startup temperature reaches the standard, the PTC stops heating, the three-way valve opens the radiator inlet, and the water pump sends the cooling water into the fuel cell stack.

[0020] At position one, the flow direction of the three-way ball valve is as Figure 2 shown. The right flow is closed, the heating water flows in from the right and out from the upper part, so that the hot water at the PTC outlet enters the three-way valve by the water pump and then enters the fuel cell stack.

[0021] At position two, the flow direction of the three-way ball valve is as Figure 3 shown. The left flow is closed, the cooling water flows in from the right and out from the upper part, so that the cooling water at the radiator outlet enters the radiator.

[0022] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0023] The above are only specific embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A three-way valve integrating a water pump and a PTC, characterized in that, It includes a PTC inlet, a PTC outlet, a water pump inlet, and a water pump outlet that are sequentially arranged along the PTC pipeline. The water pump outlet is connected to the first port of a three-way valve body. The second port of the three-way valve body is connected to the radiator inlet. The third port of the three-way valve body is connected to the inlet of the reactor. A PTC heating rod is arranged between the PTC inlet and the PTC outlet of the PTC pipeline. At position one, the water pump outlet is communicated with the inlet of the reactor, and the PTC heating rod is heated. At position two, the radiator inlet is communicated with the inlet of the reactor, and the PTC heating rod is not heated.

2. The three-way valve integrating a water pump and a PTC according to claim 1, characterized in that, The three-way valve body is a ball valve.

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