Automobile pump with temperature detection, self-cooling and temperature regulation functions

Abstract

The invention discloses an automobile pump with temperature detection and self-cooling temperature adjustment functions, and relates to the technical field of automobile pumps, the automobile pump comprises a pump shell, the pump shell is located on one side of a driving assembly, a pump body cavity is formed in the pump shell, an impeller is arranged in the pump body cavity, the output end of the driving assembly is connected with the impeller, and an auxiliary assembly is arranged on the pump shell; the auxiliary assembly is used for treating particulate matter in the cooling liquid, a drainage assembly is arranged in the pump shell and used for cooling the driving assembly under high-speed rotation of the driving assembly, a detection assembly is arranged at the bottom end of the pump shell, and a temperature adjusting assembly is arranged between the detection assembly and the impeller.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive pumps, and in particular, to an automotive pump with a temperature detection and self-cooling temperature regulation function. Background Art

[0002] An automotive pump is a new type of water pump that is completely electronic from control to drive, and uses an electronic integration system to fully control liquid transmission, thereby achieving the adjustability and accuracy of liquid transmission. It can be used on vehicles as a coolant power source to ensure that the cooled components meet the optimal working temperature.

[0003] The existing inner pump housing of an automotive pump is mainly used to allow the coolant to flow through. After stopping working, there will be residual liquid in its space, and the residual liquid will be affected by the outside world and then freeze, affecting the subsequent operation of the automotive pump. Then, when the automotive pump is in use, since the flow channels are all sealed spaces, most of the impurities in the coolant are metal particles detached from the pipe wall or the engine. After the impeller rotates for a long time, the metal particles will contact the impeller, resulting in impeller wear. Moreover, when the automotive pump rotates at high speed, the stator will operate at high frequency and generate heat, causing wear to itself. Under long-term operation, its heat may cause the insulation of the stator winding to age, short-circuit or even burn out. Summary of the Invention

[0004] The purpose of the present invention is to provide an automotive pump with a temperature detection and self-cooling temperature regulation function to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An automotive pump with a temperature detection and self-cooling temperature regulation function, the automotive pump includes a pump housing, the pump housing is located on one side of the drive assembly, the pump housing forms a pump body cavity, an impeller is provided in the pump body cavity, the output end of the drive assembly is connected to the impeller, an auxiliary assembly is provided on the pump housing, the auxiliary assembly is used to process the particulate matter in the coolant, a drainage assembly is provided in the pump housing, the drainage assembly is used to cool the drive assembly when it rotates at high speed, a detection assembly is provided at the bottom end of the pump housing, and a temperature regulation assembly is provided between the detection assembly and the impeller.

[0007] Specifically, as a part of the circulating water system in an automobile, the automotive pump is used to transport the coolant from the hot end of the engine to the cold end. After being cooled by the radiator, the coolant flows back to the engine, forming a cooling cycle to ensure that the engine operates within the normal working temperature range. The pump housing is provided with an output end and an output port. There is a space inside the pump housing for the impeller to rotate, driving the coolant to flow. The drive assembly is used to control the rotation of the impeller through the output end. Since the coolant passes through multiple mechanical parts and the flow channels are all sealed spaces, most of the impurities in the coolant are metal particles detached from the pipe wall or the engine and some leaked liquid. The auxiliary assembly is used to generate a magnetic force through the magnetic coil group to drive the metal particles to rotate around the outer ring of the impeller, preventing the metal particles from contacting the impeller, and finally guiding the metal particles into the collection bin. Then, when the automotive pump rotates at a high speed, the stator will operate at a high frequency and generate heat, causing wear to itself. Under long-term operation, its heat may cause the insulation of the stator winding to age, short-circuit or even burn out. Its drainage assembly controls the flow of the coolant through the heat dissipated by the drive assembly, thereby assisting in cooling the drive assembly.

[0008] The auxiliary assembly includes a housing and a first coil group. The housing is located outside the pump housing and is fixedly connected to the pump housing. There is a space between the housing and the pump housing. The first coil group is located between the housing and the pump housing and is fixedly connected to the housing. A groove body is provided in the pump housing, and several groove bodies are provided. Magnetic beads are provided in the groove bodies, and several through holes are provided on the magnetic beads.

[0009] Specifically, the auxiliary assembly is located on one side of the pump housing close to the drive assembly. The housing is fixedly connected to the pump housing, and a space is formed between the two for placing the first coil group. The first coil group and the impeller are on the same central axis. During operation, due to the centrifugal force generated by the rotation of the impeller and the magnetic attraction generated by the first coil group, the metal particles are located outside the impeller, preventing the metal particles from contacting the impeller. When the first coil group is working, because it generates an alternating magnetic field after being energized, continuously switches the energized position, and changes the position of the alternating magnetic field, the traction force is changed, and finally a rotating magnetic field is achieved. The rotating magnetic field not only drives the metal particles to move, but also drives the magnetic beads on the groove body to rotate. Multiple through holes are provided on the magnetic beads, and the through holes are used for the coolant to flow through. Therefore, the operation of the first coil group drives the magnetic beads to rotate, and the rotation of the magnetic beads drives the coolant to move. The operation of the first coil group and the weight of the magnetic beads themselves form an auxiliary flow of the coolant. When the automotive pump starts to work, due to the limited self-weight of the magnetic beads and the flow rate of the coolant, the magnetic beads will not start to rotate. When the pump housing is filled with coolant, the magnetic beads will start to rotate under the drive of the first coil group and the coolant, thereby pulling the coolant.

[0010] A placement groove is provided at the top end of the pump housing. The groove body is connected to the placement groove, the groove bodies are interconnected, the placement groove is connected to the internal space of the pump housing, and a collection bin is provided in the placement groove. The collection bin is bolted to the placement groove. An inlet is provided at the bottom end of the collection bin, and a cover plate is provided on the inlet. The cover plate is rotatably connected to the collection bin.

[0011] Specifically, the placement groove is located at the top end of the pump housing and is connected to the internal space of the pump housing. The placement groove is mainly used to install the collection bin. A gasket is installed between the collection bin and the placement groove to prevent leakage. An inlet is provided at the bottom end of the collection bin. There are multiple spaces in the collection bin, and these multiple spaces are not connected, and corresponding inlets are provided for each of them. Cover plates are provided at the inlets. The cover plates are rotatably connected to the collection bin, so that one end of the cover plate is located inside the collection bin and the other end of the cover plate is located at the inlet. When the coolant initially enters the pump housing and the liquid is driven by the impeller to move, the pump housing is not filled with liquid at this time. When the liquid moves to the inlet, it will be driven into the collection bin, and the cover plate located inside the collection bin will be pressed to move, driving the other end of the cover plate to cooperate with the inlet for sealing. Under the continuous pouring of the coolant, the pump housing will be filled with the coolant. At this time, the internal pressure of the collection bin is the same as the external pressure of the inlet, and the end of the cover plate located outside the inlet will move downward under its own weight, and the inlet will open. The particulate matter in the coolant will move into the groove body under the influence of the impeller and the auxiliary components. Also, because the groove bodies are connected to each other and the groove bodies are connected to the placement groove, the particulate matter driven by the coolant will move to the placement groove through the groove body, and then move to the inlet and enter the collection bin. Under the accumulation of the particulate matter, the cover plate will be pressed, and finally the inlet will be sealed. And there are multiple inlets. When the first inlet is sealed, the particulate matter will continue to move, so that a large rotation angle of the cover plate is not required, preventing the tilt angle of the cover plate from being too large and affecting the flow of the coolant.

[0012] The drive assembly includes a housing and a stator. One end of the housing is fixedly connected to the pump housing. The stator is located inside the housing. A rotor is provided inside the stator. One end of the rotor is provided with a transmission rod. One end of the transmission rod is fixedly connected to the rotor, and the other end of the transmission rod is fixedly connected to the impeller.

[0013] Specifically, the housing serves as a protective part for the stator to prevent the coolant from entering the stator and causing irreversible damage to the stator. After the stator is powered on, it is used to drive the rotor to rotate. One end of the transmission rod is fixedly connected to the rotor, and the other end of the transmission rod is fixedly connected to the impeller. Therefore, when the rotor rotates, it will drive the transmission rod to rotate, and the transmission rod will drive the impeller to rotate.

[0014] The drainage component includes a bimetallic strip and a moving block. A cavity is formed in the inner wall of the housing. The bimetallic strip is located within the cavity. A fluid groove is formed on one side of the cavity. A connecting groove is provided between the cavity and the fluid groove. One end of the connecting groove communicates with the cavity, and the other end of the connecting groove communicates with the fluid groove. The moving block is located within the connecting groove and is slidably connected to the connecting groove. One end of the bimetallic strip is fixedly connected to the inner wall of the cavity. A main contact block is provided on one side of the bimetallic strip. A secondary contact block is provided on the inner wall of the cavity. The secondary contact block and the main contact block are on the same central axis. A connecting rod is provided on one side of the bimetallic strip. The connecting rod is located on the side of the bimetallic strip away from the main contact block. One end of the connecting rod is rotatably connected to the bimetallic strip, and the other end of the connecting rod is rotatably connected to the moving block.

[0015] Specifically, when the automotive pump rotates at high speed, the stator will operate at high frequency and generate heat. During long-term operation or high-frequency operation, it will cause certain wear to the rotor and stator. A cavity is formed in the housing wall, and a bimetallic strip is provided within the cavity. One end of the bimetallic strip is fixedly connected to the inner wall of the cavity. The bimetallic strip is divided into a high-expansion metal strip and a low-expansion metal strip. Its main contact block is fixedly connected to the low-expansion metal strip. Thus, when the rotor generates high temperature, the temperature will be absorbed by the housing and affect the bimetallic strip. Due to the influence of high temperature, the high-expansion layer metal expands more, and the bimetallic strip bends towards the low-expansion layer side. The distance between the main contact block and the secondary contact block will be reduced. The capacitance value between the main contact block and the secondary contact block is inversely proportional to the distance. When the distance decreases, the capacitance value will increase; when the distance increases, the capacitance value will decrease. The bimetallic strip will drive the connecting rod to move, and the connecting rod will drive the moving block to move. The moving block acts as a valve and cooperates with the drainage groove. When at normal temperature or when the housing is at low temperature, the moving block seals with the drainage groove to block the flow of the coolant. At high temperature, the bimetallic strip bends towards the low-expansion layer side, the moving block moves, and the valve opening is opened. The size of the valve opening is proportional to the temperature of the housing. When the temperature of the housing decreases, the bimetallic strip will return to its original position and push the moving block back to its original position. Then the cavity communicates with the flow-through groove. When a moving block is provided at the connection between the cavity and the flow-through groove, the moving block seals the connection.

[0016] A groove is formed in the inner wall of the drainage groove. A pressure plate is provided within the groove. The pressure plate is slidably connected to the groove. A spring is provided between the pressure plate and the groove. An iron rod is provided at the bottom of the pressure plate and is fixedly connected to the pressure plate. A metal strain gauge is provided on the inner wall of the groove. The metal strain gauge is located at the end of the groove away from the iron rod.

[0017] Specifically, its groove, moving block and connecting rod are on the same central axis. When the temperature of the machine shell is low, the bimetallic strip bends towards the high-expansion layer side. The bimetallic strip will push the connecting rod, the connecting rod will push the moving block, and the moving block will squeeze the pressure plate. The pressure plate is pressed, and the pressure plate will push the iron rod to move. The iron rod will contact the metal strain gauge, resulting in a change in resistance. The change in resistance is inversely proportional to the pressure received. When the connecting rod squeezes the metal strain gauge, the resistance decreases. Thus, according to the detection values of the contact block and the metal strain gauge, the temperature of the machine shell can be known. Its temperature is obtained by comparing two values, with higher accuracy.

[0018] A flow passage groove is provided in the wall of the pump housing. One end of the flow passage groove is connected to the inner space of the pump housing, and a positioning hollow column is provided at the other end of the flow passage groove. The positioning hollow column is matched with the drainage groove.

[0019] Specifically, when the automotive pump is in use, its flow passage groove is connected to the drainage groove. The flow passage groove extends out the positioning hollow column. The positioning hollow column is hollow for the coolant to pass through. The positioning hollow column acts as a positioning member to assist in connecting and installing the pump housing and the machine shell.

[0020] The detection component includes a second coil and a magnet. The second coil is located at the bottom end of the pump housing. One end of the second coil is fixedly connected to the pump housing. The magnet is located inside the second coil. An outer shell is sleeved outside the second coil, and the outer shell is fixedly connected to the pump housing. Both ends of the magnet are slidably connected to the outer shell.

[0021] Specifically, when the automotive pump is working, during long-term use of the impeller, the impeller will be worn due to various reasons. The impeller generates vibration due to wear, and the vibration of the impeller will affect the pump housing. The pump housing will vibrate due to the vibration of the impeller. The vibration of the pump housing will drive the magnet to move. The magnet moves inside the second coil. Thus, the magnetic force generated by the magnet will cut the second coil, generating electromagnetic induction. By electromagnetic induction, the vibration amplitude of the pump housing can be known, and the impeller wear can be indirectly obtained. According to the impeller wear degree, the working frequency of the first coil group is adjusted to drive the magnetic beads to move, assisting the impeller to drive the coolant to move, thereby reducing the working pressure of the impeller and reducing the wear of the impeller caused by high-frequency operation, and improving the service life of the impeller.

[0022] The temperature regulation component includes a protective shell, a semiconductor substrate and a heating wire. The protective shell is located at the bottom end of the pump housing, and the protective shell is fixedly connected to the pump housing. A semiconductor substrate is provided inside the protective shell, and the heating wire is located inside the pump housing.

[0023] Specifically, when the external temperature is low, the impeller in the vehicle pump stops rotating, and the coolant remains at the bottom inside the pump housing. The coolant inside is affected by the external temperature, and the frozen coolant will affect the normal operation of the vehicle pump. In severe cases, the impeller cannot rotate. The frozen coolant accumulates at the bottom inside the pump housing, and the bottom of the pump housing is most affected by the temperature. The protective shell is located at the bottom of the pump housing, and a semiconductor substrate is provided inside the protective shell to increase the temperature coverage area of the semiconductor substrate and improve the detection accuracy. When the semiconductor substrate is affected by low temperature and generates a voltage change, the forward voltage decreases linearly with the increase in temperature. The higher the temperature, the lower the voltage. Conversely, the lower the temperature, the higher the voltage. Control the heating wire to work to liquefy the frozen coolant. After the pump housing is affected by the heating wire, it returns to normal temperature, and the solid coolant in the space also becomes liquid. At low external temperatures, the coolant in the pump housing is heated by the heating wire, and the temperature of the coolant itself is higher than the external temperature. Therefore, when the coolant passes through the engine, it also has the effect of warming up the engine, and the temperature of the coolant itself does not affect the engine.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. The centrifugal force generated by the rotation of the impeller of the present invention and the magnetic attraction generated by the first coil group keep the metal particles outside the impeller, preventing the metal particles from contacting the impeller, and driving the magnetic beads on the groove body to rotate. Multiple through holes are provided on the magnetic beads. When the magnetic beads rotate, the magnetic beads drive the coolant to move, and the operation of the first coil group and the weight of the magnetic beads themselves form an auxiliary for the coolant to flow.

[0026] 2. Under the influence of the impeller and the first coil group, the particles in the coolant of the present invention move into the groove body. Since the groove bodies are connected to each other, and the groove body is communicated with the placement groove, when the coolant drives the particles, they will move through the groove body to the placement groove, and then move to the feed port and enter the collection bin. Under the accumulation of the particles, the cover plate will be pressed, and finally the feed port will be sealed.

[0027] 3. Under the influence of high temperature on the bimetal of the present invention, the high-expansion layer metal extends more, and the bimetal bends towards the low-expansion layer side. The distance between the main contact block and the secondary contact block will be shortened, and the capacitance value between the main contact block and the secondary contact block will change. Moreover, the bimetal will drive the connecting rod to move, and the connecting rod will drive the moving block to move. The higher the temperature of the machine shell, the farther the moving block moves, and the larger the valve opening.

[0028] 4. At low temperatures of the machine shell of the present invention, the bimetal bends towards the high-expansion layer side. The bimetal will push the connecting rod, the connecting rod will push the moving block, the moving block will squeeze the pressure plate, the pressure plate is pressed, the pressure plate will push the iron rod to move, the iron rod will contact the metal strain gauge, generating a resistance change. Therefore, according to the detection values of the contact block and the metal strain gauge, the accuracy is higher.

[0029] 5. The magnetic force generated by the magnet of the present invention will cut the second coil, generating electromagnetic induction, etc. to know the vibration amplitude of the pump housing, indirectly obtaining the impeller wear, adjusting the working frequency of the first coil group according to the impeller wear degree, driving the magnetic beads to move, assisting the impeller to drive the coolant to move, thereby reducing the working pressure of the impeller.

[0030] 6. When the conductor matrix of the present invention is affected by low temperature and generates a voltage change, the heating wire is controlled to work according to the voltage value, liquefying the frozen coolant. After the pump housing is affected by the heating wire, it returns to normal temperature, and the solid coolant in its space also becomes liquid. The coolant flowing to the engine is higher than normal temperature, so it plays a role in warming up the engine when passing through the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0032] Figure 2 is a schematic structural diagram of the drive assembly of the present invention;

[0033] Figure 3 is a schematic structural diagram of the pump housing of the present invention;

[0034] Figure 4 is Figure 3 an enlarged view of the partial A in

[0035] Figure 5 is a schematic structural diagram of the tank body of the present invention;

[0036] Figure 6 is a schematic structural diagram of the collection bin of the present invention;

[0037] Figure 7 is a schematic structural diagram of the temperature adjustment assembly of the present invention;

[0038] Figure 8 is a schematic structural diagram of the fluid tank of the present invention;

[0039] Figure 9 is a schematic structural diagram of the cavity of the present invention;

[0040] Figure 10 is Figure 9 an enlarged view of the partial B in

[0041] Figure 11 is Figure 9 an enlarged view of the partial C in

[0042] Figure 12 is a schematic structural diagram of the detection assembly of the present invention.

[0043] In the figure: 1. Pump housing; 11. Tank body; 12. Placing groove; 13. Flow-through groove; 2. Driving assembly; 21. Machine housing; 211. Cavity; 212. Fluid tank; 213. Connecting groove; 214. Groove; 22. Stator; 23. Rotor; 24. Transmission rod; 3. Impeller; 4. Auxiliary assembly; 41. Housing; 42. First coil group; 43. Magnetic bead; 44. Collection bin; 45. Cover plate; 5. Drainage assembly; 51. Bimetallic strip; 52. Moving block; 53. Main contact block; 54. Sub-contact block; 55. Link; 56. Pressure plate; 57. Spring; 58. Iron rod; 59. Metal strain gauge; 6. Detection assembly; 61. Second coil; 62. Magnet; 63. Outer housing; 7. Temperature control assembly; 71. Protective housing; 72. Semiconductor substrate; 73. Heating wire; 8. Positioning hollow column. Detailed implementation manners

[0044] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Embodiment: As Figures 1 to 12 shown, the present invention provides a technical solution for an automotive pump with a temperature detection and self-cooling temperature control function. The automotive pump includes a pump housing 1, the pump housing 1 is located on one side of the driving assembly 2, the pump housing 1 forms a pump body cavity, an impeller 3 is arranged in the pump body cavity, the output end of the driving assembly 2 is connected to the impeller 3, an auxiliary assembly 4 is arranged on the pump housing 1, the auxiliary assembly 4 is used for treating particulate matters in the coolant, a drainage assembly 5 is arranged in the pump housing 1, the drainage assembly 5 is used for cooling the driving assembly 2 under high-speed rotation, a detection assembly 6 is arranged at the bottom end of the pump housing 1, and a temperature control assembly 7 is arranged between the detection assembly 6 and the impeller 3.

[0046] Specifically, as a part of the circulating water system in an automobile, the automotive pump is used to transport the coolant from the hot end of the engine to the cold end. After being cooled by the radiator, the coolant flows back to the engine to form a cooling cycle, ensuring that the engine operates within the normal working temperature range. The pump housing 1 is provided with an output end and an output end. A space is left inside the pump housing 1 for the impeller 3 to rotate, driving the coolant to flow. The driving assembly 2 is used to control the rotation of the impeller 3 through the output end. Since the coolant passes through multiple mechanical parts and the flow channels are all sealed spaces, most of the impurities in the coolant are metal particles detached from the pipe wall or the engine and some leaked liquid. The auxiliary assembly 4 is used to generate magnetic force through the magnetic coil group to drive the metal particles to rotate around the outer circle of the impeller 3, preventing the metal particles from contacting the impeller 3, and finally diverting the metal particles into the collection bin 44. Then, when the automotive pump rotates at high speed, the stator 22 will operate at high frequency and generate heat, causing wear to itself. In the long-term operation, its heat may cause the insulation of the stator 22 winding to age, short-circuit or even burn out. Its diversion assembly 5 controls the flow of the coolant through the heat dissipated by the driving assembly 2, thereby assisting in cooling the driving assembly 2.

[0047] As Figures 1 to 7 shown, the auxiliary assembly 4 includes a housing 41 and a first coil group 42. The housing 41 is located outside the pump housing 1. The housing 41 is fixedly connected to the pump housing 1. A space is left between the housing 41 and the pump housing 1. The first coil group 42 is located between the housing 41 and the pump housing 1. The first coil group 42 is fixedly connected to the housing 41. A groove 11 is formed in the pump housing 1. A number of grooves 11 are provided. Magnetic beads 43 are arranged in the grooves 11. A number of through holes are formed in the magnetic beads 43.

[0048] Specifically, the auxiliary component 4 is located on the side of the pump housing 1 close to the drive component 2. The housing 41 is fixedly connected to the pump housing 1, and a space is formed between them for placing the first coil group 42. The first coil group 42 and the impeller 3 are on the same central axis. During operation, due to the centrifugal force generated by the rotation of the impeller 3 and the magnetic attraction generated by the first coil group 42, the metal particles are located outside the impeller 3, preventing the metal particles from contacting the impeller 3. When the first coil group 42 is working, because an alternating magnetic field is generated after it is energized, the energized position is continuously switched, changing the position of the alternating magnetic field, achieving a change in the traction force, and finally realizing a rotating magnetic field. The rotating magnetic field not only drives the metal particles to move, but also drives the magnetic beads 43 on the groove body 11 to rotate. Multiple through holes are provided on the magnetic beads 43, and the through holes are used for the circulation of the coolant. Thus, the operation of the first coil group 42 drives the magnetic beads 43 to rotate, and the rotation of the magnetic beads 43 drives the coolant to move. The operation of the first coil group 42 and the weight of the magnetic beads 43 itself form an auxiliary flow of the coolant. When the automotive pump starts to work, due to the limited self-weight of the magnetic beads 43 and the flow rate of the coolant, the magnetic beads 43 will not start to rotate. When the engine temperature is higher than the set temperature, that is, when the pump housing 1 is filled with coolant, the magnetic beads 43 will start to rotate under the drive of the first coil group 42 and the coolant, thereby pulling the coolant.

[0049] As Figure 6 shown, a placement groove 12 is provided at the top of the pump housing 1. The groove body 11 is communicated with the placement groove 12, and the groove bodies 11 are communicated with each other. The placement groove 12 is communicated with the internal space of the pump housing 1. A collection bin 44 is provided in the placement groove 12. The collection bin 44 is bolted to the placement groove 12. An inlet is provided at the bottom of the collection bin 44, and a cover plate 45 is provided on the inlet. The cover plate 45 is rotatably connected to the collection bin 44.

[0050] Specifically, the placement groove 12 is located at the top of the pump housing 1 and is in communication with the internal space of the pump housing 1. The placement groove 12 is mainly used for installing the collection bin 44. A gasket is installed between the collection bin 44 and the placement groove 12 to prevent leakage. An inlet is provided at the bottom end of the collection bin 44. The collection bin 44 is provided with multiple spaces that are not connected to each other, and corresponding inlets are provided for each of them. Covers 45 are provided at the inlets. The covers 45 are rotatably connected to the collection bin 44, so that one end of the cover 45 is located inside the collection bin 44 and the other end of the cover 45 is located at the inlet. When the coolant initially enters the pump housing 1 and the impeller 3 drives the liquid to move, the pump housing 1 is not filled with liquid at this time. When the liquid moves to the inlet, it will be driven into the collection bin 44, and the cover 45 located inside the collection bin 44 will be pressed to move, driving the other end of the cover 45 to cooperate with the inlet for sealing. Under the continuous pouring of the coolant, the pump housing 1 will be filled with the coolant. At this time, the internal pressure of the collection bin 44 is the same as the external pressure of the inlet, and the end of the cover 45 located outside the inlet will move downward under its own weight, and the inlet will open. The particulate matter in the coolant will move into the groove 11 under the influence of the impeller 3 and the auxiliary component 4. Also, because the grooves 11 are connected to each other and the grooves 11 are in communication with the placement groove 12, the coolant-driven particulate matter will move through the grooves 11 to the placement groove 12, and then move to the inlet and enter the collection bin 44. Under the accumulation of the particulate matter, the cover 45 will be pressed, and finally the inlet will be sealed. And there are multiple inlets. When the first inlet is sealed, the particulate matter will continue to move, so that a large rotation angle of the cover 45 is not required, preventing the tilt angle of the cover 45 from being too large and affecting the flow of the coolant.

[0051] As Figure 8 shown, the drive assembly 2 includes a housing 21 and a stator 22. One end of the housing 21 is fixedly connected to the pump housing 1. The stator 22 is located inside the housing 21. A rotor 23 is provided inside the stator 22. One end of the rotor 23 is provided with a transmission rod 24. One end of the transmission rod 24 is fixedly connected to the rotor 23, and the other end of the transmission rod 24 is fixedly connected to the impeller 3.

[0052] Specifically, the housing 21 serves as a protective part for the stator 22 to prevent the coolant from entering the stator 22 and causing irreversible damage to the stator 22. After the stator 22 is powered on, it is used to drive the rotor 23 to rotate. One end of the transmission rod 24 is fixedly connected to the rotor 23, and the other end of the transmission rod 24 is fixedly connected to the impeller 3. Therefore, when the rotor 23 rotates, it will drive the transmission rod 24 to rotate, and the transmission rod 24 will drive the impeller 3 to rotate.

[0053] As Figures 9 to 11As shown, the drainage component 5 includes a bimetal sheet 51 and a moving block 52. An inner wall of the casing 21 is provided with a cavity 211. The bimetal sheet 51 is located in the cavity 211. A fluid groove 212 is provided on one side of the cavity 211. A communication groove 213 is provided between the cavity 211 and the fluid groove 212. One end of the communication groove 213 communicates with the cavity 211, and the other end of the communication groove 213 communicates with the fluid groove 212. The moving block 52 is located in the communication groove 213 and is slidably connected to the communication groove 213. One end of the bimetal sheet 51 is fixedly connected to the inner wall of the cavity 211. A main point contact block 53 is provided on one side of the bimetal sheet 51. A secondary point contact block 54 is provided on the inner wall of the cavity 211. The secondary point contact block 54 and the main point contact block 53 are on the same central axis. A connecting rod 55 is provided on one side of the bimetal sheet 51. The connecting rod 55 is located on the side of the bimetal sheet 51 away from the main point contact block 53. One end of the connecting rod 55 is rotatably connected to the bimetal sheet 51, and the other end of the connecting rod 55 is rotatably connected to the moving block 52.

[0054] Specifically, when the automotive pump rotates at a high speed, the stator 22 will operate at a high frequency to generate heat. During long-term operation or high-frequency operation, certain wear will be caused to the rotor 23 and the stator 22. A cavity 211 is provided in the wall of the casing 21, and a bimetal sheet 51 is provided in the cavity 211. One end of the bimetal sheet 51 is fixedly connected to the inner wall of the cavity 211. The bimetal sheet 51 is divided into a high-expansion metal sheet and a low-expansion metal sheet. Its main point contact block 53 is fixedly connected to the low-expansion metal sheet. Thus, when the rotor 23 generates high temperature, the temperature will be absorbed by the casing 21, affecting the bimetal sheet 51. Due to the influence of the high temperature, the high-expansion layer metal expands more, and the bimetal sheet 51 bends towards the low-expansion layer side. The distance between the main point contact block 53 and the secondary point contact block 54 will be reduced. The capacitance value between the main point contact block 53 and the secondary point contact block 54 is inversely proportional to the distance. When the distance decreases, the capacitance value will increase, and when the distance increases, the capacitance value will decrease. The bimetal sheet 51 will drive the connecting rod 55 to move, and the connecting rod 55 will drive the moving block 52 to move. The moving block 52 acts as a valve and cooperates with the drainage groove. When at normal temperature or when the casing 21 is at a low temperature, the moving block 52 seals with the drainage groove to block the flow of the coolant. At high temperature, the bimetal sheet 51 bends towards the low-expansion layer side, the moving block 52 moves, and the valve opening is opened. The size of the valve opening is proportional to the temperature of the casing 21. When the temperature of the casing 21 decreases, the bimetal sheet 51 will return to its original position, pushing the moving block 52 back to its original position. Then the cavity 211 communicates with the flow-through groove. When a moving block 52 is provided at the connection between the cavity 211 and the flow-through groove, the moving block 52 seals the connection.

[0055] As Figure 11As shown in the figure, a groove 214 is formed in the inner wall of the drainage groove. A pressure plate 56 is arranged in the groove 214. The pressure plate 56 is slidably connected to the groove 214. A spring 57 is arranged between the pressure plate 56 and the groove 214. An iron rod 58 is arranged at the bottom end of the pressure plate 56. The iron rod 58 is fixedly connected to the pressure. A metal strain gauge 59 is arranged on the inner wall of the groove 214. The metal strain gauge 59 is located at one end of the groove 214 away from the iron rod 58.

[0056] Specifically, the groove 214, the moving block 52 and the connecting rod 55 are on the same central axis. At low temperature of the machine shell 21, the bimetallic strip 51 bends towards the high-expansion layer side. The bimetallic strip 51 will push the connecting rod 55. The connecting rod 55 will push the moving block 52. The moving block 52 will squeeze the pressure plate 56. The pressure plate 56 is pressed. The pressure plate 56 will push the iron rod 58 to move. The iron rod 58 will contact the metal strain gauge 59, generating a resistance change. The resistance change is inversely proportional to the pressure received. When the connecting rod 55 squeezes the metal strain gauge 59, the resistance decreases. Thus, according to the detection value of the contact block and the metal strain gauge 59, the temperature of the machine shell 21 can be known. Its temperature is obtained by comparing two values, and the accuracy is higher.

[0057] As Figure 9 shown in the figure, a flow-through groove 13 is formed in the wall of the pump housing 1. One end of the flow-through groove 13 is communicated with the inner space of the pump housing 1. The other end of the flow-through groove 13 is provided with a positioning hollow column 8. The positioning hollow column 8 is matched with the drainage groove.

[0058] Specifically, when the automotive pump is in use, the flow-through groove 13 is communicated with the drainage groove. The flow-through groove 13 extends out the positioning hollow column 8. The positioning hollow column 8 is hollow for the coolant to pass through. The positioning hollow column 8 acts as a positioning part for assisting in connecting and installing the pump housing 1 and the machine shell 21.

[0059] As Figure 12 shown in the figure, the detection component 6 includes a second coil 61 and a magnet 62. The second coil 61 is located at the bottom end of the pump housing 1. One end of the second coil 61 is fixedly connected to the pump housing 1. The magnet 62 is located inside the second coil 61. An outer shell 63 is sleeved outside the second coil 61. The outer shell 63 is fixedly connected to the pump housing 1. Both ends of the magnet 62 are slidably connected to the outer shell 63.

[0060] Specifically, when the automotive pump is working, during long-term use, the impeller 3 will be worn due to various reasons. The impeller 3 will vibrate due to wear, and the vibration of the impeller 3 will affect the pump housing 1. The pump housing 1 will vibrate due to the vibration of the impeller 3. The vibration of the pump housing 1 will drive the magnet 62 to move. The magnet 62 moves within the second coil 61. Thus, the magnetic force generated by the magnet 62 will cut the second coil 61, generating electromagnetic induction. By means of electromagnetic induction, the vibration amplitude of the pump housing 1 is known, and the wear of the impeller 3 is indirectly obtained. The working frequency of the first coil group 42 is adjusted according to the wear degree of the impeller 3, driving the magnetic bead 43 to move, assisting the impeller 3 to drive the coolant to move, thereby reducing the working pressure of the impeller 3, reducing the wear caused by high-frequency operation of the impeller 3, and increasing the service life of the impeller 3.

[0061] As Figure 7 shown, the temperature adjustment component 7 includes a protective shell 71, a semiconductor substrate 72 and a heating wire 73. The protective shell 71 is located at the bottom end of the pump housing 1. The protective shell 71 is fixedly connected to the pump housing 1. A semiconductor substrate 72 is provided inside the protective shell 71, and the heating wire 73 is located inside the pump housing 1.

[0062] Specifically, when the outside temperature is low, the impeller 3 in the automotive pump stops rotating, and the coolant will remain at the bottom end inside the pump housing 1. The internal coolant will be affected by the external temperature. Thus, the frozen coolant will affect the normal operation of the automotive pump. In severe cases, the impeller 3 cannot rotate. The frozen coolant will concentrate at the bottom end inside the pump housing 1. The bottom end of the pump housing 1 is most affected by the temperature. The protective shell 71 is located at the bottom end of the pump housing 1, and a semiconductor substrate 72 is provided inside the protective shell 71, increasing the temperature coverage area received by the semiconductor substrate 72 and improving the detection accuracy. When the semiconductor substrate 72 is affected by low temperature and generates a voltage change, the forward voltage decreases linearly with the increase of temperature. The higher the temperature, the lower the voltage. On the contrary, the lower the temperature, the higher the voltage. The heating wire 73 is controlled to work, liquefying the frozen coolant. After the pump housing 1 is affected by the heating wire 73, it returns to normal temperature. The solid coolant in the space also becomes liquid. When the outside temperature is low, the coolant inside the pump housing 1 is heated by the heating wire 73, and the temperature of the coolant itself will be higher than the outside temperature. Thus, when the coolant passes through the engine, it also has the effect of warming up the engine, and the temperature of the coolant itself will not affect the engine.

[0063] Working principle: When the engine starts, the semiconductor substrate 72 of it will first be affected by the temperature of the pump housing 1 itself and the coolant in the frozen state, resulting in a change in the voltage value, controlling the heating wire 73 to work. The heating wire 73 heats the bottom end of the pump housing 1, liquefying the coolant in the frozen state. At the same time, the coolant is input at the input end of the automotive pump, and the coolant will be mixed with the thawed coolant. At the same time, the stator 22 is also energized to control the rotation of the rotor 23. The rotor 23 drives the transmission rod 24 to rotate, the transmission rod 24 drives the impeller 3 to rotate, the impeller 3 drives the coolant to rotate, and the coolant will finally flow to the output end of the automotive pump. The coolant flowing through the heating wire 73 is affected by the heating wire 73, and the coolant flowing to the engine is higher than the normal temperature, thus achieving the effect of warming up the engine when passing through the engine. During this period, due to the self-weight of the magnetic bead 43 itself and the limited flow rate of the coolant, the magnetic bead 43 will not start to rotate. When the pump housing 1 is filled with coolant, the first coil group 42 generates a rotating magnetic field, driving the magnetic bead 43 on the groove body 11 to rotate. Multiple through holes are provided on the magnetic bead 43, and the through holes are used for the circulation of the coolant. Therefore, the movement of the magnetic bead 43 will drive the movement of the coolant. The rotating magnetic field generated by the first coil group 42 not only pulls the magnetic bead 43, but also drives the metal particles to rotate around the outer circle of the impeller 3, preventing the metal particles from contacting the impeller 3. Finally, the metal particles are drained to the groove body 11 and move into the groove body 11. Also, because the groove bodies 11 are connected to each other, and the groove body 11 is communicated with the placement groove 12, the coolant-driven particles will move through the groove body 11 to the placement groove 12, and then move to the feed port and enter the collection bin 44. Under the accumulation of the particles, the cover plate 45 will be pressed, finally sealing the feed port. And multiple feed ports are provided. When the first feed port is sealed, the particles will continue to move, so that a large rotation angle of the cover plate 45 is not required, preventing the tilt angle of the cover plate 45 from being too large and affecting the flow of the coolant. Then, when the stator 22 in the drive assembly 2 works, it will generate its own temperature and then affect the housing 21. Also, because the bimetallic strip 51 is inside the housing 21, under the influence of temperature, the housing 21 will gradually warm up and then be higher than the external temperature. Under the influence of high temperature, the high-expansion layer metal of the bimetallic strip 51 stretches more, and the bimetallic strip 51 bends toward the low-expansion layer side. The distance between the main contact block 53 and the secondary contact block 54 will be reduced. The bimetallic strip 51 will also drive the connecting rod 55 to move, the connecting rod 55 will drive the moving block 52 to move, and the moving block 52 will drive the iron rod 58 to move, enabling the coolant to flow. At the same time, due to the increase in the capacitance value between the main contact block 53 and the secondary contact block 54 and the decrease in the resistance of the metal strain gauge 59, it is known that the housing 21 is at a high temperature, that is, the automotive pump has been working for some time, the residual coolant in the pump housing 1 has also thawed, and the engine has been warmed up. The heating wire will stop working and no longer heat the pump housing 1. Then, the bimetallic strip 51 will control the moving distance of the moving block 52 according to the temperature of the housing 21, that is, the size of the valve opening. That is, the higher the temperature, the larger the valve opening, the faster the flow rate of the coolant, and the better the cooling effect of the coolant on the housing 21. When the automotive pump stops working,The housing 21 will return to normal temperature, and the bimetal will push the moving block 52 to close the valve port. When the housing 21 is exposed to low temperature from the outside, the bimetal 51 will bend towards the side of the high expansion layer. The bimetal 51 will push the connecting rod 55, the connecting rod 55 will push the moving block 52, and the moving block 52 will squeeze the pressure plate 56. The pressure plate 56 is pressed, and the pressure plate 56 will push the iron rod 58 to move. The iron rod 58 will contact the metal strain gauge 59 to generate a change in resistance, and the distance between the main contact block 53 and the secondary contact block 54 will be pulled apart. Furthermore, the temperature of the housing 21 can be obtained by comparing two sets of values, and it is also possible to determine whether the remaining coolant in the pump housing 1 has entered the frozen state based on the temperature of the housing 21.

[0064] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automotive pump with a temperature detection and self-cooling temperature regulation function, characterized in that: The automotive pump includes a pump housing (1), the pump housing (1) is located on one side of the drive assembly (2), the pump housing (1) forms a pump body cavity, an impeller (3) is provided in the pump body cavity, the output end of the drive assembly (2) is connected to the impeller (3), an auxiliary assembly (4) is provided on the pump housing (1), the auxiliary assembly (4) is used for treating particulate matter in the coolant, a drainage assembly (5) is provided in the pump housing (1), the drainage assembly (5) is used for cooling the drive assembly (2) when it rotates at high speed, a detection assembly (6) is provided at the bottom end of the pump housing (1), and a temperature adjustment assembly (7) is provided between the detection assembly (6) and the impeller (3).

2. The automotive pump with a temperature detection and self-cooling temperature regulation function according to claim 1, characterized in that: The auxiliary assembly (4) includes a housing (41) and a first coil group (42), the housing (41) is located outside the pump housing (1), the housing (41) is fixedly connected to the pump housing (1), there is a space between the housing (41) and the pump housing (1), the first coil group (42) is located between the housing (41) and the pump housing (1), the first coil group (42) is fixedly connected to the housing (41), a groove body (11) is formed in the pump housing (1), there are several groove bodies (11), magnetic beads (43) are provided in the groove bodies (11), and several through holes are formed in the magnetic beads (43).

3. The automotive pump with a temperature detection and self-cooling temperature regulation function according to claim 2, characterized in that: A placement groove (12) is formed at the top end of the pump housing (1), the groove body (11) is communicated with the placement groove (12), the groove bodies (11) are communicated with each other, the placement groove (12) is communicated with the internal space of the pump housing (1), a collection bin (44) is provided in the placement groove (12), the collection bin (44) is bolted to the placement groove (12), a feed inlet is formed at the bottom end of the collection bin (44), and a cover plate (45) is provided on the feed inlet, and the cover plate (45) is rotatably connected to the collection bin (44).

4. The automotive pump with a temperature detection and self-cooling temperature regulation function according to claim 3, characterized in that: The drive assembly (2) includes a casing (21) and a stator (22), one end of the casing (21) is fixedly connected to the pump housing (1), the stator (22) is located inside the casing (21), a rotor (23) is provided in the stator (22), a transmission rod (24) is provided at one end of the rotor (23), one end of the transmission rod (24) is fixedly connected to the rotor (23), and the other end of the transmission rod (24) is fixedly connected to the impeller (3).

5. The automotive pump with a temperature detection and self-cooling temperature regulation function according to claim 4, characterized in that: The drainage component (5) includes a bimetallic strip (51) and a moving block (52). An inner wall of the housing (21) is provided with a cavity (211). The bimetallic strip (51) is located in the cavity (211). A fluid groove (212) is provided on one side of the cavity (211). A communication groove (213) is provided between the cavity (211) and the fluid groove (212). One end of the communication groove (213) is communicated with the cavity (211), and the other end of the communication groove (213) is communicated with the fluid groove (212). The moving block (52) is located in the communication groove (213), and the moving block (52) is slidably connected to the communication groove (213). One end of the bimetallic strip (51) is fixedly connected to the inner wall of the cavity (211). A main contact block (53) is provided on one side of the bimetallic strip (51). A secondary contact block (54) is provided on the inner wall of the cavity (211). The secondary contact block (54) and the main contact block (53) are on the same central axis. A connecting rod (55) is provided on one side of the bimetallic strip (51). The connecting rod (55) is located on the side of the bimetallic strip (51) away from the main contact block (53). One end of the connecting rod (55) is rotatably connected to the bimetallic strip (51), and the other end of the connecting rod (55) is rotatably connected to the moving block (52).

6. The automotive pump with a temperature detection and self-cooling temperature regulation function according to claim 5, characterized in that: A groove (214) is provided on the inner wall of the drainage groove. A pressure plate (56) is provided in the groove (214). The pressure plate (56) is slidably connected to the groove (214). A spring (57) is provided between the pressure plate (56) and the groove (214). An iron rod (58) is provided at the bottom end of the pressure plate (56). The iron rod (58) is fixedly connected to the pressure. A metal strain gauge (59) is provided on the inner wall of the groove (214). The metal strain gauge (59) is located at one end of the groove (214) away from the iron rod (58).

7. The automotive pump with a temperature detection and self-cooling temperature regulation function according to claim 6, characterized in that: A flow-through groove (13) is provided in the wall of the pump housing (1). One end of the flow-through groove (13) is communicated with the inner space of the pump housing (1). A positioning hollow column (8) is provided at the other end of the flow-through groove (13). The positioning hollow column (8) is matched with the drainage groove.

8. The automotive pump with a temperature detection and self-cooling temperature regulation function according to claim 7, characterized in that: The detection component (6) includes a second coil (61) and a magnet (62). The second coil (61) is located at the bottom end of the pump housing (1). One end of the second coil (61) is fixedly connected to the pump housing (1). The magnet (62) is located in the second coil (61). A housing (63) is sleeved outside the second coil (61). The housing (63) is fixedly connected to the pump housing (1). Both ends of the magnet (62) are slidably connected to the housing (63).

9. The automotive pump with a temperature detection and self-cooling temperature regulation function according to claim 8, wherein: The temperature adjustment component (7) includes a protective housing (71), a semiconductor substrate (72) and a heating wire (73). The protective housing (71) is located at the bottom end of the pump housing (1). The protective housing (71) is fixedly connected to the pump housing (1). A semiconductor substrate (72) is provided in the protective housing (71). The heating wire (73) is located in the pump housing (1).

Images