Constant temperature control valve with pump head

Abstract

The utility model provides a constant temperature control valve with a pump head, and belongs to the technical field of engine heat management. The problem that an existing constant-temperature control valve is high in energy consumption is solved. The constant-temperature control valve with the pump head comprises a valve body, the valve body is provided with a plurality of inlet channels and an outlet main channel, a valve element is arranged in the valve body and located between the inlet channels and the outlet main channel, a rotatable cooling pump impeller is installed in the outlet main channel, and a rotating shaft is arranged on the valve body in a penetrating and supporting mode. The inner end of the rotating shaft is fixedly connected with the cooling pump impeller, and the outer end of the rotating shaft extends out of the valve body and then is fixedly connected with a belt hub. The constant temperature control valve with the pump head can reduce energy consumption.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine thermal management and relates to a constant temperature control valve with a pump head. Background Art

[0002] The normal operating temperature of the engine is 80℃-90℃. The car is equipped with an engine thermal management module to control the flow of coolant. When the engine temperature is high, it can cool the engine and keep the engine working at a suitable temperature, that is, the engine works at a constant temperature of 80℃-90℃. Therefore, the engine thermal management module is also called the engine's thermostatic control valve, and the thermostatic control valve is equipped with an electronically controlled actuator.

[0003] In order to achieve multi-pipeline coolant ratio adjustment, the thermostatic control valve in the existing automotive thermal management system is generally provided with multiple outlets or multiple inlets. The thermostatic control valve with multiple outlets, such as a flow control valve and cooling system [Publication No.: CN111692381A] proposed in the Chinese patent literature, the flow control valve (i.e., thermostatic control valve) includes a housing, a driving mechanism (i.e., an actuator) and a valve body (i.e., a valve core). The bottom of the housing is provided with a main connecting port (i.e., an inlet), and the side wall of the housing is provided with a first outlet, a second outlet, a third outlet, and a fourth outlet at different positions, and the first outlet, the second outlet, the third outlet, and the fourth outlet are all provided with outlet pipes. The coolant outlet of the engine is connected to the main connecting port of the housing, the first outlet is connected to the radiator, the second outlet is connected to the transmission oil heater, the third outlet is connected to the heater, the radiator, the transmission oil heater, and the heater are all connected to the inlet of the water pump, the fourth outlet is connected to the inlet of the water pump through a bypass, and the outlet of the water pump is connected to the coolant inlet of the engine. The coolant flows in the engine to cool the engine. The coolant flowing out of the engine enters the flow control valve through the main connecting port, and then flows out from the first outlet, the second outlet, the third outlet and the fourth outlet respectively, and then flows back into the engine through the drive of the water pump after passing through the radiator, the transmission oil heater, the heater and the bypass. The radiator, the transmission oil heater and the heater are all heat exchangers used to cool the coolant passing through.

[0004] A thermostatic control valve with multiple inlets, such as a multi-way valve with modular rotating parts disclosed in a Chinese patent document [Publication No.: CN106014590A], includes a housing having an axial outlet port and three axially spaced inlet ports, the first inlet port being connected to the outlet fluid of the vehicle radiator, the second inlet port being connected to the outlet fluid of the heater, the third inlet port being connected to the outlet fluid of the cooling system bypass, and the outlet port of the housing being connected to the inlet fluid of the cooling system pump. The outlet of the cooling system pump is connected to the inlet fluid of the engine block, and the inlet of the vehicle radiator, the inlet of the heater, and the inlet of the cooling system bypass are all connected to the outlet fluid of the engine block. The coolant flows in the engine to cool the engine, and the coolant flowing out of the engine enters the multi-way valve through the vehicle radiator, the heater, and the cooling system bypass, respectively, and then flows out of the multi-way valve and flows back into the engine through the drive of the cooling system pump.

[0005] In the thermal management cooling system of an automobile engine, the cooling pump is usually connected to the thermostatic control valve through an external pipe. The coolant will lose kinetic energy while flowing in the external pipe, which is not conducive to energy conservation and emission reduction. Utility Model Content

[0006] The purpose of the utility model is to solve the above problems existing in the prior art and to propose a thermostatic control valve with a pump head, the technical problem to be solved is how to reduce energy consumption.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A thermostatic control valve with a pump head comprises a valve body, the valve body having a plurality of inlet channels and an outlet main channel, a valve core is arranged in the valve body between the inlet channels and the outlet main channel, and is characterized in that a rotatable cooling pump impeller is installed in the outlet main channel, a rotating shaft is passed through and supported on the valve body, the inner end of the rotating shaft is fixedly connected to the cooling pump impeller, and the outer end of the rotating shaft extends out of the valve body and is fixedly connected to a pulley hub.

[0009] The cooling pump impeller, rotating shaft and pulley hub constitute the cooling pump. The part of the cooling pump located outside the valve body is called the pump head. The outlet main channel of the thermostatic control valve is connected to the inlet of the engine cylinder block, the inlet channel of the thermostatic control valve is connected to the outlet of each heat exchanger, and the inlet of the heat exchanger is connected to the outlet of the engine cylinder block. The coolant circulates in the engine, heat exchanger, thermostatic control valve, and then back to the engine. The pulley hub is connected to the output shaft of the engine or other power source through a belt. The rotation of the output shaft drives the pulley hub to rotate, and the cooling pump impeller is driven to rotate through the rotating shaft. The cooling pump impeller drives the coolant to flow out of the outlet main channel of the thermostatic control valve and accelerate into the engine.

[0010] Since the cooling pump impeller is installed in the main outlet channel of the valve body, the rotating shaft passes through and is supported on the valve body, and the rotating shaft extends out of the valve body and is connected to the pulley hub, the cooling pump is integrated in the thermostatic control valve, that is, the cooling pump and the thermostatic control valve are an integrated structure, and no external pipe is provided between the cooling pump and the thermostatic control valve, thereby reducing the loss of coolant flowing in the external pipe between the thermostatic control valve and the cooling pump, thereby reducing energy consumption.

[0011] In the above-mentioned thermostatic control valve with a pump head, a mounting surface for abutting against an engine cylinder block is arranged on the bottom surface of the valve body, and the port of the outlet main channel is located on the mounting surface and arranged downward.

[0012] The thermostatic control valve can be directly connected to the engine cylinder block through the mounting surface, so that the port of the outlet main channel is directly connected to the inlet of the engine cylinder block, reducing the external pipe between the engine and the cooling pump, and reducing the loss of coolant flowing in the external pipe between the engine and the cooling pump, thereby reducing energy consumption.

[0013] In the above thermostatic control valve with a pump head, a sealing ring arranged around the port of the outlet main channel is fixed on the mounting surface. When the mounting surface is in contact with the engine cylinder body, the sealing ring forms a seal between the mounting surface and the engine cylinder body, thereby reducing energy loss caused by leakage of coolant.

[0014] In the above-mentioned thermostatic control valve with a pump head, the valve body includes a main body and a cover that are fixedly connected in a split manner, the valve core is installed in the main body, the side wall of the main body has a protruding mounting portion, the outlet main channel is arranged in the mounting portion, the mounting portion is provided with an opening that communicates with the outlet main channel, the cooling pump impeller can be inserted into the mounting portion through the opening, the cover is fixedly connected to the mounting portion and closes the opening, and the rotating shaft is passed through and supported on the cover. The protruding arrangement of the mounting portion provides an installation space for the installation of the cooling pump impeller to avoid interference between the cooling pump impeller and the valve core; the opening arrangement makes it easy to install the cooling pump impeller on the valve body. In the above-mentioned thermostatic control valve with a pump head, the outer surface of the cover is provided with protruding reinforcing ribs, and the reinforcing ribs are in a plurality and cross-arranged. This can improve the structural strength of the cover and keep the cover stable during operation.

[0015] In the above thermostatic control valve with pump head, the outer side of the cover has a protruding mounting barrel, and the rotating shaft is passed through and supported in the mounting barrel. The installation of the mounting barrel prolongs the assembly length of the rotating shaft and the cover, making the rotating shaft work stably.

[0016] In the above-mentioned thermostatic control valve with a pump head, the bottom of the main body is provided with several supporting feet for fixedly connecting with the engine cylinder body, and the bottom end of the cover is provided with several connecting feet for connecting with the engine cylinder body. The main body is fixedly connected to the engine through the supporting feet, and the cover is fixed to the main body and also fixed to the engine through the connecting feet, so that the impeller and the rotating shaft of the cooling pump can work stably, thereby making the cooling pump work stably.

[0017] A thermostatic control valve with a pump head comprises a valve body, the valve body having an inlet main channel and a plurality of outlet channels, a valve core is arranged in the valve body between the inlet main channel and the outlet channels, and is characterized in that a rotatable cooling pump impeller is installed in the inlet main channel, a rotating shaft is passed through and supported on the valve body, the inner end of the rotating shaft is fixedly connected to the cooling pump impeller, and the outer end of the rotating shaft extends out of the valve body and is fixedly connected to a pulley hub.

[0018] The cooling pump impeller, rotating shaft and pulley hub constitute the cooling pump. The part of the cooling pump located outside the valve body is called the pump head. The inlet main channel of the thermostatic control valve is connected to the outlet of the engine block, the outlet channel of the thermostatic control valve is connected to the inlet of each heat exchanger, and the outlet of the heat exchanger is connected to the inlet of the engine block. The coolant circulates in the engine, the thermostatic control valve, the heat exchanger, and then back to the engine. The pulley hub is connected to the output shaft of the engine or other power source through a belt. The rotation of the output shaft drives the pulley hub to rotate, and the cooling pump impeller is driven to rotate through the rotating shaft. The cooling pump impeller drives the coolant to accelerate from the inlet main channel to flow into the dynamic thermostatic control valve for distribution.

[0019] Since the cooling pump impeller is installed in the main inlet channel of the valve body, the rotating shaft passes through and is supported on the valve body, and the rotating shaft extends out of the valve body and is connected to the pulley hub, the cooling pump is integrated in the thermostatic control valve, that is, the cooling pump and the thermostatic control valve are an integrated structure, and no external pipe is arranged between the cooling pump and the thermostatic control valve. The coolant driven by the cooling pump is directly distributed through the thermostatic control valve, which reduces the loss of the coolant flowing in the external pipe between the thermostatic control valve and the cooling pump, thereby reducing energy consumption.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] A cooling pump impeller is installed in the inlet main channel or the outlet main channel of the valve body, and a rotating shaft is passed through and supported on the valve body. Both ends of the rotating shaft are fixedly connected to the cooling pump impeller and the pulley hub respectively, so that the cooling pump is integrated into the thermostatic control valve, reducing the external pipes between the thermostatic control valve and the cooling pump, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a stereogram of the first embodiment of the thermostatic control valve.

[0023] Figure 2 It is a stereoscopic view after the connecting pipe is removed in the first embodiment of the thermostatic control valve.

[0024] Figure 3 It is a partial cross-sectional view of the installation portion in the first embodiment of the thermostatic control valve.

[0025] Figure 4 It is a stereoscopic diagram of the first embodiment of the thermostatic control valve from another perspective.

[0026] In the figure, 1, valve body; 1a, main body; 1a1, inlet channel; 1a2, outlet main channel; 1a3, mounting surface; 1a4, sealing ring; 1a5, supporting foot; 1a6, mounting part; 1a6a, opening; 1b, sealing cover; 1b1, connecting foot; 1b2, reinforcing rib; 1b3, mounting cylinder; 1c, bottom cover; 2, cooling pump impeller; 3, rotating shaft; 4, valve core; 5, actuator; 6, connecting pipe; 7, pulley hub. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] Embodiment 1

[0029] like Figure 1 and Figure 2 As shown, a thermostatic control valve with a pump head includes a valve body 1, the valve body 1 has several inlet channels 1a1 and an outlet main channel 1a2, and a valve core 4 is arranged in the valve body 1 between the inlet channels 1a1 and the outlet main channel 1a2. The number of inlet channels 1a1 can be two, three or four, and each inlet channel 1a1 is connected to a connecting pipe 6. The valve body 1 includes a main body 1a and a cover 1b which are fixedly connected in a split manner, the valve core 4 is installed in the main body 1a, and the cover 1b is fixedly connected to the side wall of the main body 1a by bolts. The outer surface of the cover 1b is provided with protruding reinforcing ribs 1b2, and the reinforcing ribs 1b2 are provided in a plurality and are cross-arranged. The bottom end of the cover 1b is provided with two connecting feet 1b1 for connecting to the engine cylinder block. The side wall of the main body 1a has a protruding mounting portion 1a6, the outlet main channel 1a2 is arranged in the mounting portion 1a6, the mounting portion 1a6 is provided with an opening 1a6a communicating with the outlet main channel 1a2, and the cover 1b is fixedly connected to the mounting portion 1a6 and closes the opening 1a6a. The top of the main body 1a is fixedly connected with an actuator 5, which is connected to the valve core 4 and is used to drive the valve core 4 to rotate. The bottom end of the main body 1a is fixedly connected with a bottom cover 1c, and the bottom end of the valve core 4 is inserted in the bottom cover 1c and can rotate.

[0030] like Figure 1 and Figure 3As shown, an impeller cavity is provided in the outlet main channel 1a2, and a rotatable cooling pump impeller 2 is installed in the impeller cavity. A rotating shaft 3 is passed through and supported on the valve body 1, and the inner end of the rotating shaft 3 is fixedly connected to the cooling pump impeller 2. The outer end of the rotating shaft 3 is extended out of the valve body 1 and is fixedly connected to a pulley hub 7. The cooling pump impeller 2 is inserted into the impeller cavity through the opening 1a6a. The rotating shaft 3 is passed through and supported on the cover 1b, and a protruding mounting cylinder 1b3 is provided on the outer surface of the cover 1b. The rotating shaft 3 is passed through and supported in the mounting cylinder 1b3, and a bearing is provided between the rotating shaft 3 and the mounting cylinder 1b3. The pulley hub 7 is sleeved on the outer end of the rotating shaft 3, and a single key connection or a spline connection is formed between the pulley hub 7 and the rotating shaft 3. A shoulder is provided on the outer surface of the outer end of the rotating shaft 3, and the pulley hub 7 rests on the shoulder. The outer end of the rotating shaft 3 extends out of the belt pulley hub 7 and is threadedly connected with a locking nut, and the belt pulley hub 7 is axially fixed to the rotating shaft 3 through the locking nut and the shoulder. A slot is provided on the inner end surface of the belt pulley hub 7, and the mounting cylinder 1b3 is inserted into the slot. The cooling pump impeller 2 is fixed to the rotating shaft 3 by interference fit.

[0031] like Figure 4 As shown, the bottom of the main body 1a is provided with a plurality of supporting feet 1a5 for fixed connection with the engine cylinder body, the bottom surface of the mounting portion 1a6 of the main body 1a is provided with a mounting surface 1a3 for abutting against the engine cylinder body, the port of the outlet main channel 1a2 is located on the mounting surface 1a3 and is arranged downward. A sealing ring 1a4 arranged around the port of the outlet main channel 1a2 is fixed on the mounting surface 1a3.

[0032] The cooling pump impeller 2, the rotating shaft 3 and the pulley hub 7 constitute the cooling pump. The part of the cooling pump located outside the valve body 1 is called the pump head. The outlet main channel 1a2 of the thermostatic control valve is connected to the inlet of the engine cylinder block, the inlet channel 1a1 of the thermostatic control valve is connected to the outlet of the heat exchanger, and the inlet of the heat exchanger is connected to the outlet of the engine cylinder block. The coolant circulates in the engine, the heat exchanger, the thermostatic control valve, and then returns to the engine. The pulley hub 7 is connected to the output shaft of the engine or other power source through a belt. The rotation of the output shaft drives the pulley hub 7 to rotate, and the cooling pump impeller 2 is driven to rotate through the rotating shaft 3. The cooling pump impeller 2 drives the coolant to flow out of the outlet main channel 1a2 of the thermostatic control valve and accelerate into the engine.

[0033] Since the cooling pump impeller 2 is installed in the outlet main channel 1a2 of the valve body 1, the rotating shaft 3 is passed through and supported on the valve body 1, and the rotating shaft 3 extends out of the valve body 1 and is connected to the pulley hub 7, the cooling pump is integrally arranged in the thermostatic control valve, that is, the cooling pump and the thermostatic control valve are an integrated structure, and no external pipe 6 is arranged between the cooling pump and the thermostatic control valve, which reduces the loss of the coolant flowing in the external pipe 6 between the thermostatic control valve and the cooling pump, thereby reducing energy consumption. Moreover, the thermostatic control valve can be directly connected to the cylinder body of the engine through the mounting surface 1a3, so that the port of the outlet main channel 1a2 is directly connected to the inlet of the engine cylinder body, reducing the external pipe 6 between the engine and the cooling pump, and reducing the loss of the coolant flowing in the external pipe 6 between the engine and the cooling pump, thereby reducing energy consumption.

[0034] Embodiment 2

[0035] The thermostatic control valve with a pump head comprises a valve body 1, which has an inlet main channel and several outlet channels. A valve core 4 is arranged between the inlet main channel and the outlet channel in the valve body 1. The valve body 1 comprises a main body 1a and a cover 1b which are separately fixedly connected. The side wall of the main body 1a has a protruding mounting portion 1a6, the inlet main channel is arranged in the mounting portion 1a6, the outlet channel is arranged on the side wall of the main body 1a, and a pipe 6 is fixed in the outlet channel. The bottom surface of the mounting portion 1a6 is provided with a mounting surface 1a3, and the port of the inlet main channel is arranged on the mounting surface 1a3. The opening 1a6a of the mounting portion 1a6 is arranged upward, the cover 1b is fixedly connected to the upper end of the mounting portion 1a6 and closes the opening 1a6a, the rotating shaft 3 is vertically installed on the cover 1b, the upper end of the rotating shaft 3 extends out of the cover 1b and is fixedly connected to the pulley hub 7, the lower end of the rotating shaft 3 is fixedly connected to the cooling pump impeller 2, and the cooling pump impeller 2 is located in the inlet main channel. The inlet channel 1a1 in the first embodiment is the outlet channel in this embodiment. The other structures of the main body 1a, the bottom cover 1c, the valve core 4, and the actuator 5 are the same as those in the first embodiment.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A thermostatic control valve with a pump head, comprising a valve body (1), the valve body (1) having a plurality of inlet channels (1a1) and an outlet main channel (1a2), a valve core (4) being arranged in the valve body (1) between the inlet channels (1a1) and the outlet main channel (1a2), characterized in that: A rotatable cooling pump impeller (2) is installed in the outlet main channel (1a2), a rotating shaft (3) is passed through and supported on the valve body (1), the inner end of the rotating shaft (3) is fixedly connected to the cooling pump impeller (2), and the outer end of the rotating shaft (3) extends out of the valve body (1) and is fixedly connected to a pulley hub (7).

2. The thermostatic control valve with a pump head according to claim 1, characterized in that: The bottom surface of the valve body (1) is provided with a mounting surface (1a3) for abutting against an engine cylinder block, and the port of the outlet main channel (1a2) is located on the mounting surface (1a3) and is arranged downward.

3. The thermostatic control valve with a pump head according to claim 2, characterized in that: A sealing ring (1a4) arranged around the port of the outlet main channel (1a2) is fixed on the mounting surface (1a3).

4. The thermostatic control valve with a pump head according to claim 1, 2 or 3, characterized in that: The valve body (1) comprises a main body (1a) and a cover (1b) which are fixedly connected in a split manner. The valve core (4) is installed in the main body (1a). A protruding mounting portion (1a6) is provided on the side wall of the main body (1a). The outlet main channel (1a2) is arranged in the mounting portion (1a6). An opening (1a6a) communicating with the outlet main channel (1a2) is provided on the mounting portion (1a6). The cooling pump impeller (2) can be inserted into the outlet main channel (1a2) through the opening (1a6a). The cover (1b) is fixedly connected to the mounting portion (1a6) and closes the opening (1a6a). The rotating shaft (3) is passed through and supported on the cover (1b).

5. The thermostatic control valve with a pump head according to claim 4, characterized in that: The outer side surface of the cover (1b) is provided with protruding reinforcing ribs (1b2), and the reinforcing ribs (1b2) are in plurality and cross-arranged.

6. The thermostatic control valve with a pump head according to claim 4, characterized in that: The outer side surface of the sealing cover (1b) is provided with a protruding mounting tube (1b3), and the rotating shaft (3) is passed through and supported in the mounting tube (1b3).

7. The thermostatic control valve with a pump head according to claim 4, characterized in that: The bottom of the main body (1a) is provided with a plurality of supporting feet (1a5) for fixedly connecting with the engine cylinder body, and the bottom end of the cover (1b) is provided with a plurality of connecting feet (1b1) for connecting with the engine cylinder body.

8. A thermostatic control valve with a pump head, comprising a valve body (1), wherein the valve body (1) has an inlet main channel and a plurality of outlet channels, and a valve core (4) is arranged in the valve body (1) between the inlet main channel and the outlet channels, characterized in that: A rotatable cooling pump impeller (2) is installed in the inlet main channel, a rotating shaft (3) is passed through and supported on the valve body (1), the inner end of the rotating shaft (3) is fixedly connected to the cooling pump impeller (2), and the outer end of the rotating shaft (3) extends out of the valve body (1) and is fixedly connected to a pulley hub (7).

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