Novel brushless automobile electronic water pump

Abstract

A novel brushless automobile electronic water pump comprises a water pump shell and a volute, an impeller is arranged between the water pump shell and the volute and has magnetism, a stator installation cavity is formed in the water pump shell, a stator winding and a control panel are arranged in the stator installation cavity, an insertion piece is arranged between the stator winding and the control panel, and the control panel drives the stator winding through the insertion piece. And the stator winding receives a signal of the control board through the insertion sheet to perform reversing work on the stator winding. Specifically, in the design, when the water pump runs, cooling liquid enters the volute from a water inlet of the volute and is connected with a power source through a rear end cover, current is guided to the control panel through a power-on wiring harness connected with a control panel power-on unit, a chip in the control panel drives a stator winding below to generate reversing, and therefore the impeller induces a magnetic field to rotate; therefore, the cooling liquid forms a vortex in the volute, the cooling liquid is discharged more quickly through the water outlet of the volute, the circulating effect of the cooling liquid in the automobile cooling water pipe is achieved, and relevant parts are cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electronic water pumps, in particular to a novel brushless automobile electronic water pump. Background Art

[0002] In existing automotive electronic water pumps, the impeller is usually changed by carbon brushes inside the water pump. However, the carbon brushes will wear out over a long period of time, causing performance degradation, which in turn affects the efficiency and life of the water pump. At the same time, the presence of carbon brushes will also increase the maintenance cost and failure rate of the water pump. Summary of the invention

[0003] In view of this, the utility model provides a novel brushless automotive electronic water pump.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A novel brushless automotive electronic water pump comprises a water pump housing and a volute, an impeller is arranged between the water pump housing and the volute, a stator mounting cavity is formed in the water pump housing, a stator winding and a control board are arranged in the stator mounting cavity, an insert is arranged between the stator winding and the control board, the control board drives the stator winding through the insert, and the stator winding receives a signal from the control board through the insert to perform commutation work on the stator winding.

[0006] Preferably, the water pump housing includes a first shell and a second shell, the second shell is arranged at the bottom of the first shell, the volute is connected to the first shell, the stator mounting cavity and the stator winding in the stator mounting cavity are arranged inside the first shell, a rear cover plate is arranged between the first shell and the second shell, the rear cover plate blocks the first shell and the second shell, and a power harness is arranged in the second shell, and the power harness passes through the rear cover plate to be electrically connected to the control board.

[0007] Preferably, the interior of the first shell protrudes toward the volute to form an impeller positioning end, an impeller positioning ring groove is formed between the impeller positioning end and the inner wall of the first shell, and the side of the first shell close to the rear cover plate is concave to form a stator mounting groove corresponding to the impeller positioning end, and the stator winding is arranged in the stator mounting groove.

[0008] Preferably, a pin assembly is arranged between the rear cover and the control board, and the pin assembly includes a female plug on the control board and a male plug on the rear cover, the female plug is arranged in a columnar structure, a male plug hole is provided on the female plug, and one end of the male plug extends into the male plug hole to be connected with the female plug.

[0009] Preferably, a control board power connection unit is further provided on a side of the rear cover away from the control board, and the control board power connection unit is electrically connected to the power harness.

[0010] Preferably, a Hall element is provided on the control board, and the Hall element senses signals from the stator winding.

[0011] The beneficial effect of the utility model is that compared with the prior art, the carbon brush structure in the water pump is eliminated, the weight of the water pump, the maintenance cost and the failure rate are reduced, and the reliability and service life of the water pump are improved. In addition, the brushless design also reduces the noise and vibration of the water pump during operation, providing a more comfortable and quiet driving environment for the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Attached Figure 1 It is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] The utility model will be further described below in conjunction with the accompanying drawings of the specification.

[0016] The utility model provides the following technical solutions:

[0017] As attached Figure 1As shown, the utility model discloses a novel brushless automotive electronic water pump, comprising a water pump housing 1 and a volute 2, an impeller 3 is arranged between the water pump housing 1 and the volute 2, the impeller 3 has magnetism, a stator installation cavity 4 is formed in the water pump housing 1, a stator winding 5 and a control board 6 are arranged in the stator installation cavity 4, an insert (not shown) is arranged between the stator winding 5 and the control board 6, the control board 6 drives the stator winding 5 through the insert, and the stator winding 5 receives a signal from the control board 6 through the insert to perform commutation work on the stator winding 5. Specifically, in this design, when the water pump is running, the coolant enters the volute 2 from the water inlet of the volute 2, and the power is turned on through the rear end cover. The current is guided to the control board 6 through the power harness 10 connected to the control board power connection unit 16. The chip in the control board 6 drives the stator winding 5 below to produce commutation, so that the impeller 3 can sense the magnetic field and rotate, so that the coolant forms an eddy current inside the volute 2, and the coolant is discharged more quickly through the water outlet of the volute 2, so as to achieve the effect of circulating the coolant in the automobile cooling water pipe, thereby cooling the related components. Compared with the prior art, this design eliminates the structure of the carbon brush in the water pump, reduces the weight of the water pump, the maintenance cost and the failure rate, and also improves the reliability and service life of the water pump. In addition, the brushless design also reduces the noise and vibration of the water pump during operation, providing the driver with a more comfortable and quiet driving environment.

[0018] Specifically, a chip (not shown) is installed in the control board 6. The chip generates specific electrical signals, which are transmitted to the stator winding 5 through the plug connection and control the flow of current therein. The current change in the stator winding 5 generates a magnetic field, which interacts with the magnetic field of the impeller 3 to cause the impeller 3 to rotate. In order to achieve continuous rotation, the current in the stator winding 5 needs to be commutated in a specific order and time interval, which is achieved by the control board 6 chip by precisely controlling the electrical signal.

[0019] Furthermore, the water pump housing 1 includes a first shell 7 and a second shell 8, wherein the second shell 8 is arranged at the bottom of the first shell 7, the volute 2 is connected to the first shell 7, the stator mounting cavity 4 and the stator winding 5 in the stator mounting cavity 4 are arranged inside the first shell 7, a rear cover plate 9 is arranged between the first shell 7 and the second shell 8, and the rear cover plate 9 blocks the first shell 7 and the second shell 8, and a power harness 10 is arranged in the second shell 8, and the power harness 10 passes through the rear cover plate 9 and is electrically connected to the control board 6. Specifically, in this embodiment, the separation design of the first shell 7 and the second shell 8 makes it easier to disassemble and assemble when parts need to be repaired or replaced. In addition, the rear cover plate 9, as a barrier between the first shell 7 and the second shell 8, not only plays a role of fixing and protecting, but also effectively isolates the electrical components and the liquid flow area, thereby ensuring the safe operation of the water pump.

[0020] Furthermore, the first housing 7 protrudes toward the volute 2 to form an impeller positioning end 11, and an impeller positioning ring groove 12 is formed between the impeller positioning end 11 and the inner wall of the first housing 7. The first housing 7 is concave on the side close to the rear cover plate 9 corresponding to the impeller positioning end 11 to form a stator mounting groove, and the stator winding 5 is arranged in the stator mounting groove. Specifically, in this embodiment, the design of the impeller positioning end 11 and the impeller positioning ring groove 12 ensures the stable installation and positioning of the impeller 3 in the water pump housing 1, effectively prevents the impeller 3 from deflecting or shaking when running at high speed, and ensures the stability and reliability of the water pump. At the same time, the stator mounting groove formed by the concave not only optimizes the installation space of the stator winding 5, but also facilitates the maintenance and replacement of the stator winding 5, thereby improving the maintenance convenience of the water pump.

[0021] Furthermore, a pin assembly is arranged between the rear cover plate 9 and the control board 6, and the pin assembly includes a female plug 13 on the control board 6 and a male plug 14 on the rear cover plate 9, the female plug 13 is arranged in a columnar structure, a male plug socket (not shown) is provided on the female plug 13, and one end of the male plug 14 extends into the male plug socket to connect with the female plug 13. Specifically, in this embodiment, the design of the pin assembly makes the connection between the rear cover plate 9 and the control board 6 more firm and stable, and also improves the reliability of the connection. The columnar structure design of the female plug 13 increases the contact area, makes the current transmission more stable and efficient, and reduces the faults caused by poor contact. The opening of the male plug socket allows the male plug 14 to be easily inserted into the female plug 13, realizing a quick connection between the rear cover plate 9 and the control board 6. In addition, the disassembly and installation of the pin assembly are also very convenient, which is convenient for maintenance and replacement when necessary.

[0022] Furthermore, a control panel power connection unit 16 is further provided on the side of the rear cover plate 9 away from the control panel 6, and the control panel power connection unit 16 is electrically connected to the power harness 10. Specifically, in the present embodiment, the provision of the control panel power connection unit 16 makes the power supply access of the water pump more convenient and flexible. Through the control panel power connection unit 16, the power supply can be conveniently connected so that the water pump can start and run normally. At the same time, the electrical connection between the control panel power connection unit 16 and the power harness 10 ensures the stable transmission of current and provides reliable power guarantee for the normal operation of the water pump.

[0023] Furthermore, a Hall element 17 is provided on the control board 6, and the Hall element 17 senses the signal of the stator winding 5. Specifically, in this embodiment, the strength, direction and polarity of the induced magnetic field can also detect the position of the impeller 3. According to the feedback signal of the Hall sensor, the control board 6 will generate an appropriate trigger signal according to a predetermined control algorithm, and introduce current into different windings of the stator, thereby generating a suitable magnetic field.

[0024] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new type of brushless automotive electronic water pump, comprising a water pump housing and a volute, wherein an impeller is arranged between the water pump housing and the volute, and characterized in that: A stator installation cavity is formed in the water pump housing, and a stator winding and a control board are arranged in the stator installation cavity. An insert is arranged between the stator winding and the control board, and the control board drives the stator winding through the insert. The stator winding receives a signal from the control board through the insert to perform commutation on the stator winding.

2. The novel brushless automotive electronic water pump according to claim 1 is characterized in that: The water pump housing includes a first shell and a second shell, the second shell is arranged at the bottom of the first shell, the volute is connected to the first shell, the stator mounting cavity and the stator winding in the stator mounting cavity are both arranged inside the first shell, a rear cover plate is arranged between the first shell and the second shell, the rear cover plate blocks the first shell and the second shell, and a power harness is arranged in the second shell, and the power harness passes through the rear cover plate and is electrically connected to the control board.

3. The new brushless automotive electronic water pump according to claim 2 is characterized in that: The interior of the first shell protrudes toward the volute to form an impeller positioning end, an impeller positioning ring groove is formed between the impeller positioning end and the inner wall of the first shell, and the side of the first shell close to the rear cover plate is concave to form a stator mounting groove corresponding to the impeller positioning end, and the stator winding is arranged in the stator mounting groove.

4. The novel brushless automotive electronic water pump according to claim 2 is characterized in that: A pin assembly is arranged between the rear cover plate and the control board, and the pin assembly comprises a female plug on the control board and a male plug on the rear cover plate. The female plug is arranged in a columnar structure, a male plug socket is arranged on the female plug, and one end of the male plug extends into the male plug socket and is connected with the female plug.

5. The novel brushless automotive electronic water pump according to claim 2 is characterized in that: A control board power connection unit is also provided on one side of the rear cover away from the control board, and the control board power connection unit is electrically connected to the power harness.

6. The novel brushless automotive electronic water pump according to claim 1 is characterized in that: A Hall element is arranged on the control board, and the Hall element senses signals from the stator winding.

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