Water pump with high integrated structure

Abstract

The invention relates to the technical field of high-integration structure water pumps, and discloses a high-integration structure water pump which comprises a pump base, the pump base is installed on an automobile engine, a pump head sub-assembly is arranged above the pump base and used for driving water flow to flow, a circulating cooling pipeline is arranged on one side of the pump base, and the circulating cooling pipeline is connected with the pump head sub-assembly. The water storage tank on one side of the pump body is used for containing a water source formed by normal steam leakage during working, liquid which is large in instantaneous steam leakage amount and cannot be discharged due to system cleanliness can be stored, and the situation that the liquid enters a bearing, the service life of the bearing is shortened, and the reliability is reduced is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of highly integrated structure water pumps, and in particular to a highly integrated structure water pump. Background Art

[0002] In the existing technology, there is a water inlet support assembly before the water pump enters the water, which collects the coolant from different parts to form a large water inlet input and introduces it into the water pump inlet. This has multiple parts, multiple seals, and multiple connections, which increases the risks of procurement supply management, assembly process and sealing function, and at the same time increases product costs.

[0003] At the same time, because the impeller is a disc structure, if the traditional centrifugal water pump is still used, its cylindrical structure space is difficult to be effectively utilized, and it has no spatial advantage over the traditional centrifugal water pump.

[0004] Traditional water pumps also have normal steam leakage when the water pump is working, which causes a large amount of instantaneous steam leakage and the liquid cannot be discharged. The steam enters the bearings, reducing the bearing life and reliability.

[0005] Therefore, a highly integrated structure water pump is used to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a water pump with a highly integrated structure to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solution: it includes a pump seat, which is installed on a car engine, a pump head subassembly is arranged above the pump seat, and the pump head subassembly is used to drive the flow of water, and a circulating cooling pipe is arranged on one side of the pump seat, and the circulating cooling pipe is used as a water flow channel.

[0008] Preferably, the pump head subassembly includes a water pump pulley and a pump body, the pump body is connected to the pump seat, a bearing is installed inside the pump body, the top of the bearing is connected to the water pump pulley, the outer cylindrical surface of the bearing is connected to an impeller, and the impeller is located inside the pump seat.

[0009] Preferably, a water seal assembly is interference-fitted inside the pump body, the water seal assembly is internally connected to a bearing, and the seal assembly is located above the impeller.

[0010] Preferably, a plurality of spoiler ribs are provided on the inner side surface of one end of the pump body close to the pump seat, and the spoiler ribs are distributed in a circular pattern on the inner side surface of the pump body.

[0011] Preferably, a water flow channel is provided on one side of the pump body close to the pump seat, the water flow channel and the inner side surface of the pump body form a step shape, and an outlet is opened at one end of the water flow channel.

[0012] Preferably, an evaporation hole is provided above the outer circle of the pump body, and a water storage tank is provided below the outer circle of the pump body, and the evaporation hole and the water storage tank are symmetrically arranged.

[0013] Preferably, the pump seat has a seat body and a working part, the seat body and the working part are formed as one piece, the seat body is used to connect to the engine, the working part is a working chamber, a return water end and a return water chamber, the working chamber, the return water end and the return water chamber pipe are connected, and the inside of the working chamber is connected to the pump head subassembly.

[0014] Preferably, the water outlet end of the working part is aligned with the outlet of the water flow channel.

[0015] Preferably, the bottom end of the return water chamber is connected to a circulating cooling pipe, and the circulating cooling pipe includes an oil cooler return water pipe and a warm air return water pipe. The oil cooler return water pipe and the warm air return water pipe both pass through the side wall of the return water chamber and are connected to the interior of the return water chamber.

[0016] Preferably, the return water end includes a radiator return water pipe and a connecting pipe, the radiator return water pipe is located at the end surface of the return water end, and the connecting pipe is located above the return water end.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The inner side wall of the pump body of the present invention is symmetrically provided with a plurality of spoiler ribs. This technical solution includes three, but is not limited to three, and can be increased or decreased according to the requirements of use. The spoiler ribs are used to keep the surrounding area of ​​the seal in a state of coolant during the operation of the water pump, thereby reducing the probability of dry friction of the water seal and improving the reliability of the water pump.

[0019] 2. The bottom end of the water flow channel of the present invention is flush with the spoiler ribs, and the bottom end of the water flow channel and the bottom end of the spoiler ribs form a step shape. The impeller is installed between the three spoiler ribs. The impeller drives the water to flow, and the spoiler ribs change the direction of the water flow. The high-pressure water flow is blocked by the spoiler ribs. The high-pressure water flow in the middle and bottom enters the bottom of the pump body, that is, near the water seal assembly, increasing the water pressure near the water seal assembly. The subsequent high-pressure water flow enters the bottom of the pump body and near the water seal assembly according to the same running trajectory. The water flow that previously entered the vicinity of the water seal assembly dissipates after being impacted by the subsequent water flow, taking away the heat caused by the friction between the water seal assembly and the bearing, thereby preventing the water seal assembly from overheating. From the operation process of the high-pressure water flow entering the pump seat, most of the high-pressure water flow flows through the water seal assembly, forming a stable high-pressure water flow that can take away the heat of the water seal assembly 207, that is, it can maintain the high-pressure water pressure near the water seal assembly and take away the heat of the water seal, so that the water pump can operate in a relatively ideal working state for a long time.

[0020] 3. The water storage tank on one side of the pump body of the present invention is used to hold the water source generated by normal steam leakage during operation. It can also store liquid that cannot be discharged due to large instantaneous steam leakage caused by system cleanliness, to prevent it from entering the bearing, reducing the bearing life and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the overall back structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the structure of the oil cooler return pipe and the warm air return pipe of the present invention.

[0024] Figure 4 It is a schematic diagram of the working part structure of the present invention.

[0025] Figure 5 This is a schematic diagram of the pump head subassembly structure of the present invention.

[0026] Figure 6 This is a schematic cross-sectional structural diagram of the pump head subassembly of the present invention.

[0027] Figure 7 This is a schematic diagram of the disassembled structure of the pump head subassembly of the present invention.

[0028] Figure 8 It is a schematic diagram of the overall structure of the device of the present invention.

[0029] In the figure: 1. Pump seat; 101. Seat body; 102. Working part; 2. Pump head subassembly; 201. Water pump pulley; 202. Pump body; 203. Turbine ribs; 204. Bearing; 205. Water flow channel; 206. Impeller; 207. Water seal assembly; 208. Evaporation hole; 209. Water reservoir; 3. Radiator return pipe; 4. Connecting pipe; 5. Oil cooler return pipe; 6. Warm air return pipe. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the existing technology, there is a water inlet support assembly before the water pump enters the water, which collects the coolant from different parts to form a large water inlet input and introduces it into the water pump inlet. This has multiple parts, multiple seals, and multiple connections, which increases the risks of procurement supply management, assembly process and sealing function, and at the same time increases product costs.

[0032] At the same time, because the impeller is a disc structure, if the traditional centrifugal water pump is still used, its cylindrical structure space is difficult to be effectively utilized, and it has no spatial advantage over the traditional centrifugal water pump.

[0033] Traditional water pumps also have normal steam leakage when the water pump is working, which causes a large amount of instantaneous steam leakage and the liquid cannot be discharged. The steam enters the bearings, reducing the bearing life and reliability.

[0034] The present invention provides Figures 1 to 8 A highly integrated water pump shown includes a pump base 1, which is installed on a car engine. A pump head subassembly 2 is provided above the pump base 1, and the pump head subassembly 2 is used to drive the flow of water. A circulating cooling pipe is provided on one side of the pump base 1, and the circulating cooling pipe is used as a water flow channel.

[0035] When in use, the pump base 1 is installed on the automobile engine, and the pulley at the rear end of the engine shaft drives the pump head sub-assembly 2 to rotate. The pump head sub-assembly 2 rotates inside the pump base 1, driving the water flow inside the pump base 1. The circulating cooling pipe is connected to the interior of the pump base 1, and circulating water is transported to the interior of the pump base 1. The pump head sub-assembly 2 cools the circulating water.

[0036] The pump head subassembly 2 includes a water pump pulley 201 and a pump body 202. The pump body 202 is connected to the pump seat 1. A bearing 204 is installed inside the pump body 202. The top of the bearing 204 is connected to the water pump pulley 201. The outer cylindrical surface of the bearing 204 is connected to an impeller 206. The impeller 206 is located inside the pump seat 1.

[0037] During use, the pump body 202 is connected to the pump base 1 by bolts, and the pump body 202 is installed on the pump base 1. The bearing 204 inside the pump body 202 is driven to rotate by the water pump pulley 201. The water pump pulley 201 is connected to the pulley at the rear end of the engine shaft. The water pump pulley 201 drives the bearing 204 to rotate inside the pump body 202, and the pump body 202 drives the impeller 206 to rotate inside the pump base 1. The impeller 206 directly transfers the mechanical energy of the prime mover to the liquid to increase the potential energy of the liquid. The impeller 206 generally has 6 to 12 blades. The closed impeller 206 has front and rear cover plates on both sides of the blades of the impeller 206, which is highly efficient and suitable for conveying clean liquids without impurities. Most general centrifugal pump impellers 206 are of this type.

[0038] The pump body 202 has a water seal assembly 207 that is interference-fitted inside. The water seal assembly 207 is internally connected to the bearing 204 . The water seal assembly 207 is located above the impeller 206 .

[0039] When in use, the pump body 202 is interference-fitted with the water seal assembly 207, and the bearing 204 passes through the water seal assembly 207. The water seal assembly 207 is used to isolate the shaft from the pump body, prevent the coolant in the water flow cavity of the pump body 202 from leaking into the channel of the bearing diameter and prevent the water pump coolant from leaking, or prevent air from entering the water pump device, and allow the coolant to circulate in the engine and radiator and dissipate heat in the radiator.

[0040] A plurality of spoiler ribs 203 are provided on the inner side surface of one end of the pump body 202 close to the pump seat 1 , and the spoiler ribs 203 are distributed in a circular pattern on the inner side surface of the pump body 202 .

[0041] A water flow channel 205 is provided on one side of the pump body 202 close to the pump base 1 . The water flow channel 205 forms a step shape with the inner side surface of the pump body 202 . An outlet is provided at one end of the water flow channel 205 .

[0042] When in use, a plurality of spoiler ribs 203 are symmetrically arranged on the inner side wall of the pump body 202. This technical solution includes three, but is not limited to three, which can be increased or decreased according to the requirements of use. The spoiler ribs 203 are used to seal the surrounding area in a state of coolant during the operation of the water pump, thereby reducing the probability of dry friction of the water seal and improving the reliability of the water pump.

[0043] The bottom end of the water flow channel 205 is flush with the spoiler rib 203, and the bottom end of the water flow channel 205 and the bottom end of the spoiler rib 203 form a step shape. The impeller 206 is installed between the three spoiler ribs 203. The impeller 206 drives the water to flow, and the spoiler rib 203 changes the direction of the water flow. The high-pressure water flow is blocked by the spoiler rib 203. The high-pressure water flow in the middle and bottom enters the bottom of the pump body 202, that is, near the water seal assembly 207, increasing the water pressure near the water seal assembly 207. The subsequent high-pressure water flow enters the bottom of the pump body 202 and the water seal assembly 207 according to the same running trajectory. 7, the water flow that previously entered the water seal assembly 207 dissipates after receiving the impact of the subsequent water flow, taking away the heat caused by the friction between the water seal assembly 207 and the bearing 204, avoiding overheating of the water seal assembly 207. From the operation process of the high-pressure water flow entering the pump seat 1, most of the high-pressure water flow flows through the water seal assembly 207, forming a stable high-pressure water flow that can take away the heat of the water seal assembly 207, that is, it can maintain the high-pressure water pressure near the water seal assembly 207, and can take away the heat of the water seal, so that the water pump can operate in a relatively ideal working state for a long time.

[0044] The water flow in the stable flow area formed by the water retaining surface of the spoiler rib 203 and the inner wall of the pump body 202 near the end of the water outlet channel 205 with both ends open can not only quickly take away the large amount of heat generated at the water seal assembly 207 due to the high rotation of the bearing 204, but also form a relatively stable water flow on the back of the impeller 206, reducing the amount of disordered water flow on the back of the impeller 206, making the water pump more stable when working, and then the stable water flow flows out from the outlet of the water channel 205.

[0045] An evaporation hole 208 is provided above the outer circumference of the pump body 202 , and a water storage tank 209 is provided below the outer circumference of the pump body 202 . The evaporation hole 208 and the water storage tank 209 are symmetrically arranged.

[0046] During use, the mechanical seal structure may leak as the parts rotate with bearing 204. The evaporation hole 208 above the pump body 202 is a normal steam leakage channel during operation. The structure outside the evaporation hole 208 also effectively blocks the entry of foreign matter during operation, which could block the evaporation hole 208 and increase the humidity of the bearing 204 and water seal assembly 207, further reducing the life of the bearing 204 and its reliability. The water tank 209 below the pump body 202 is used to hold the coolant formed by condensation from normal steam leakage during operation. It also stores liquid that cannot be discharged due to large instantaneous steam leakage caused by system cleanliness, preventing it from entering the bearing 204 and shortening its life and reliability.

[0047] The pump seat 1 has a seat body 101 and a working part 102. The seat body 101 and the working part 102 are formed as one piece. The seat body 101 is used to connect to the engine. The working part 102 is divided into a working chamber, a return water end and a return water chamber. The working chamber, the return water end and the return water chamber pipe are connected.

[0048] The return water end includes a radiator return water pipe 3 and a connecting pipe 4. The radiator return water pipe 3 is located at the end surface of the return water end, and the connecting pipe 4 is located above the return water end.

[0049] The bottom end of the return water chamber is connected to the circulating cooling pipe, which includes an oil cooler return water pipe 5 and a warm air return water pipe 6. The oil cooler return water pipe 5 and the warm air return water pipe 6 both pass through the side wall of the return water chamber and are connected to the interior of the return water chamber.

[0050] When in use, the pump seat 1 consists of a seat body 101 and a working part 102. The seat body 101 is connected to the engine for overall fixation. The working part 102 is used to connect the working parts. The working chamber of the working part 102 is used to be assembled with the pump head subassembly 2. The return water end is used to collect the coolant after heat dissipation from the radiator return pipe 3, the oil cooler return pipe 5, and the warm air return pipe 6, and send it to the inlet of the working chamber to complete the entire cooling cycle. The connecting pipe 4 is connected to the expansion kettle. Note: The expansion kettle used in the car constitutes a constant pressure system. The water pump is constant pressure, and the expansion kettle is pressure stabilizing and buffering to protect the piping system.

[0051] The oil cooler return pipe 5 and the warm air return pipe 6 of the return water chamber are connected to the oil cooler and air cooling connection respectively, and then the cooling water source is concentrated to flow into the return water chamber. Then the impeller 206 rotates, driving the cooling water in the return water chamber to drive the inside of the working chamber for cooling.

[0052] The water outlet end of the working part 102 is aligned with the outlet of the water flow channel 205 .

[0053] When in use, the water outlet end of the working part 102 and the outlet of the water flow channel 205 form a complete through hole, which facilitates the cooling water to be transported out through the through hole for continuing to cool the engine.

[0054] How it works

[0055] Driven by the pulley at the rear end of the engine camshaft, the water pump pulley 201 drives the impeller 206 to rotate through the bearing 204. The blades in the impeller 206 work on the coolant in the working chamber and are thrown to the edge of the water flow channel 205 under the action of centrifugal force, forming high-pressure water. The water flows out through the through-hole formed by the water outlet end of the pump working part 102 and the outlet of the water flow channel 205, enters the cylinder block, cylinder head, and crankcase, and meets the cooling needs of the engine. At the same time, a low pressure is formed at the center of the impeller 206 inlet. The coolant after heat dissipation from the radiator return pipe 3, the oil cooler return pipe 5 and the warm air return pipe 6 is cooled. Under the action of the pressure difference between the working chamber inlet and the center of the impeller 206, the coolant passes through the inside of the return chamber, the inside of the working chamber and the center of the impeller 206, and circulates continuously to complete the cooling task.

[0056] The impeller 206 end adopts a labyrinth safety three-lip seal structure made of HNBR. The impeller 206 adopts a high-efficiency closed impeller 206, which improves product reliability. At the same time, while ensuring strength and parts layout, it adopts a highly integrated pump base 1 component structure that connects the radiator return water, warm air return water, oil cooler return water and expansion kettle, reducing the number of parts and achieving lightweight and integration.

[0057] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A highly integrated water pump, characterized by: The invention comprises a pump seat (1), wherein the pump seat (1) is mounted on an automobile engine, a pump head subassembly (2) is arranged above the pump seat (1), and the pump head subassembly (2) is used to drive water flow, and a circulating cooling pipe is arranged on one side of the pump seat (1), and the circulating cooling pipe is used as a water flow channel.

2. A highly integrated structure water pump according to claim 1, characterized in that: The pump head subassembly (2) comprises a water pump pulley (201) and a pump body (202), wherein the pump body (202) is connected to the pump seat (1), a bearing (204) is installed inside the pump body (202), the top end of the bearing (204) is connected to the water pump pulley (201), the outer cylindrical surface of the bearing (204) is connected to an impeller (206), and the impeller (206) is located inside the pump seat (1).

3. A highly integrated structure water pump according to claim 2, characterized in that: The pump body (202) is internally interference-fitted with a water seal assembly (207), the interior of the water seal assembly (207) is connected to the bearing (204), and the seal assembly (207) is located above the impeller (206).

4. The highly integrated structure water pump according to claim 3, characterized in that: A plurality of spoiler ribs (203) are provided on the inner side surface of one end of the pump body (202) close to the pump seat (1), and the spoiler ribs (203) are provided on the inner side surface of the pump body (202) in a circumferentially distributed manner.

5. The highly integrated structure water pump according to claim 4, characterized in that: A water flow channel (205) is provided on one side of the pump body (202) close to the pump seat (1), the water flow channel (205) and the inner side surface of the pump body (202) form a step shape, and an outlet is opened at one end of the water flow channel (205).

6. The highly integrated structure water pump according to claim 5, characterized in that: An evaporation hole (208) is provided above the outer circumference of the pump body (202), and a water storage tank (209) is provided below the outer circumference of the pump body (202). The evaporation hole (208) and the water storage tank (209) are symmetrically arranged.

7. The highly integrated structure water pump according to claim 5, characterized in that: The pump seat (1) comprises a seat body (101) and a working part (102), wherein the seat body (101) and the working part (102) are integrally formed, the seat body (101) is used to be connected to the engine, and the working part (102) is divided into a working chamber, a return water end and a return water chamber, wherein the working chamber, the return water end and the return water chamber pipe are connected, and the interior of the working chamber is connected to the pump head subassembly (2).

8. The highly integrated structure water pump according to claim 7, characterized in that: The water outlet end of the working part (102) is aligned with the outlet of the water flow channel (205).

9. The highly integrated structure water pump according to claim 8, characterized in that: The bottom end of the return water chamber is connected to a circulating cooling pipe, and the circulating cooling pipe includes an oil cooler return water pipe (5) and a warm air return water pipe (6). The oil cooler return water pipe (5) and the warm air return water pipe (6) both pass through the side wall of the return water chamber and are connected to the interior of the return water chamber.

10. The highly integrated structure water pump according to claim 9, characterized in that: The return water end comprises a radiator return water pipe (3) and a connecting pipe (4); the radiator return water pipe (3) is located at the end face of the return water end, and the connecting pipe (4) is located above the return water end.

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