An electronic controller for electric power steering of automobile

Abstract

The present invention relates to the field of steering controllers, and in particular to an electronic controller for electric power steering of an automobile, comprising a power steering controller, wherein the power steering controller comprises a shell, an upper circuit board is arranged at the upper part of the shell, a lower circuit board is arranged at the bottom of the upper circuit board, a control chip is installed on the top of the upper circuit board, an electronic component group is installed at the bottom of the lower circuit board, both sides of the upper circuit board and the lower circuit board are fixedly connected by a support frame, an opening is opened in the middle of the support frame, a connection module is installed in the middle of one side of the upper circuit board and the lower circuit board, and a wiring port is installed in the middle of one end of the connection module away from the upper circuit board and the lower circuit board. The present invention separates the control chip from the remaining electronic component groups, so that the heat of the two when working can be dissipated separately, so that the heat of the two when working will not accumulate and overlap each other, and the mutual influence between the two can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the field of steering controllers, and in particular to an electronic controller for electric power steering of an automobile. Background Art

[0002] In the automotive field, the power steering system is crucial to improving driving comfort and safety. As the core component of the system, the performance of the power steering controller directly affects the working effect of the entire power steering system. At present, the traditional power steering controller faces many problems in actual use. The existing heat dissipation methods often rely on simple heat dissipation measures, such as ordinary heat sinks, which are difficult to meet the needs of fast and efficient heat dissipation. This causes heat to easily accumulate inside the controller, which not only reduces the working efficiency of the controller, but also may shorten its service life due to long-term high-temperature operation, and even cause failures. In addition, the circuit board structure of the traditional power steering controller usually adopts an integrated circuit board, and the control chip and other electronic components are concentrated together. The heat generated during work accumulates and superimposes on each other, which not only makes it easy to cause heat dissipation difficulties, but also causes them to affect each other. Once a component has a problem and breaks down, it is very likely to involve other components, causing complete damage to the entire circuit board, high maintenance costs and affecting the normal use of the vehicle. Therefore, we propose an automotive electric power steering electronic controller to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an electronic controller for electric power steering of an automobile.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: an automobile electric power steering electronic controller, including a power steering controller, the power steering controller including a shell, an upper circuit board is arranged in the upper part of the shell, a lower circuit board is arranged at the bottom of the upper circuit board, a control chip is installed on the top of the upper circuit board, an electronic component group is installed at the bottom of the lower circuit board, both sides of the upper circuit board and the lower circuit board are fixedly connected by a support frame, the middle of the support frame is provided with an opening, a connection module is installed in the middle of one side of the upper circuit board and the lower circuit board, a wiring port is installed in the middle of one end of the connection module away from the upper circuit board and the lower circuit board, and the wiring port is installed in the middle of one side of the shell.

[0005] Preferably, a middle compartment is provided between the upper circuit board and the lower circuit board, and pressure plates are provided at the upper and lower parts of the middle compartment, and the pressure plates are slidably connected to the middle compartment.

[0006] Preferably, a storage bag is installed in the middle of the side away from the pressing plate, a heat-sensitive gas is arranged inside the storage bag, and the storage bag is arranged in the upper and lower parts of the central warehouse.

[0007] Preferably, a second fixing frame is installed in the middle of the outer periphery of the central bin, both ends of the second fixing frame are fixedly connected to the inside of the shell, a first side ring is installed in the middle of the front side of the second fixing frame, and a second side ring is installed in the middle of the rear side of the second fixing frame.

[0008] Preferably, a through pipe is fixedly connected to the middle part of the front side of the central bin, a fixing frame 1 passes through the middle part of the through pipe, the through pipe is rotatably connected to the fixing frame 1, the fixing frame 1 is arranged between the upper circuit board and the lower circuit board, both ends of the fixing frame 1 are fixedly connected to the shell, and the end of the through pipe away from the central bin passes through the front end of the shell.

[0009] Preferably, a fixed shaft is installed inside the through pipe through a cross fixing frame, a guide blade is rotatably connected to the middle part of the outer periphery of the fixed shaft, the guide blade is rotatably connected to the inner side of the through pipe, a heat dissipation blade is rotatably connected to the outer periphery of the through pipe, magnetic materials are provided on the inner side of the heat dissipation blade and the outer periphery of the guide blade, and the heat dissipation blade corresponds to the guide blade.

[0010] Preferably, a reverse flow cover is provided at one end of the through pipe away from the central compartment, and evenly distributed fixing rods are fixedly connected to the outer periphery of the end of the through pipe away from the central compartment, and one end of the fixing rods away from the through pipe is fixedly connected to the inner side of the reverse flow cover, and the reverse flow cover is arranged on the side of the heat dissipation fan blades away from the shell.

[0011] Preferably, a check valve is installed inside the through pipe, a one-way valve is installed in the middle of one end of the central compartment away from the through pipe, the through pipe is arranged on the inner side of the side ring 1, and the one-way valve is arranged on the inner side of the side ring 2.

[0012] Preferably, the corners of the pressing plates that are close to each other are each provided with an elastic member, and the upper and lower ends of the elastic member are both fixedly connected to the pressing plate.

[0013] Preferably, heat-insulating blocks are installed in the middle of the upper and lower ends of the shell, cavities are arranged inside the heat-insulating blocks, and evenly distributed heat-dissipating fins are arranged in the middle of the outer periphery of the shell.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When the power steering controller of the present invention is actually used, the heat dissipation of the power steering controller can be facilitated by the heat dissipation fins. At the same time, the upper and lower heat insulation blocks of the power steering controller and the heat dissipation fins on the edges can fully insulate the power steering controller from the surrounding parts and other structures in the car, thereby effectively reducing the direct transfer of heat, extending the heat transfer path, so that the heat can be fully dissipated when it is transferred to the power steering controller, reducing the heat accumulation of the power steering controller, and facilitating actual use.

[0016] 2. Separate the traditional integrated circuit board into an upper circuit board and a lower circuit board, and combine the upper circuit board and the lower circuit board at one end through a connecting module so that they can be used normally. By separating the control chip from the remaining electronic component groups, the heat generated by the two when working can be dissipated separately, so that the heat generated by the two when working will not accumulate and overlap with each other, which can effectively avoid the two from affecting each other. At the same time, a large space is left between the upper circuit board and the lower circuit board through the support of the support frame, which reduces the heat transfer between the upper circuit board and the lower circuit board, and can avoid the control chip and the electronic component group from being completely damaged when problems occur in the control chip and the electronic component group and breakdown occurs, thereby achieving the preservation of some structures.

[0017] 3. When the power steering controller is working, the heat generated by the control chip and the electronic component group will be transferred to the upper and lower parts of the center bin. The heat-sensitive material in the storage bag inside the center bin can quickly absorb the heat and expand, so that the storage bag can be enlarged. The storage bag can squeeze the pressure plate and force the pressure plate to move, so that the upper and lower pressure plates will move closer to the middle. In this process, the hotter gas in the middle of the center bin can be forced out and discharged from the inside of the power steering controller through the through pipe, thereby quickly reducing the heat accumulation rate inside the power steering controller and reducing the heat retention inside the power steering controller.

[0018] 4. In the process of discharging the gas inside the power steering controller, it will encounter the guide blades, thereby driving the guide blades to rotate. The guide blades can drive the heat dissipation fan blades to rotate synchronously. When the heat dissipation fan blades rotate, they can pull the surrounding airflow to flush the power steering controller, thereby taking away the heat on the power steering controller and the surroundings, and realizing rapid heat dissipation of the power steering controller. At the same time, the airflow will encounter the backflow cover after being discharged from the through pipe. The inner arc surface of the backflow cover can guide the airflow back so that the airflow can flow back to blow on the outside of the power steering controller, so that the outer periphery of the power steering controller is filled with flowing airflow, and the heat on the power steering controller can be taken away by the flowing airflow, realizing the heat dissipation of the power steering controller. At the same time, the airflow will encounter the heat dissipation fan blades during the backflow process, thereby assisting the heat dissipation fan blades in the heat dissipation work of the power steering controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front three-dimensional structure of an automotive electric power steering electronic controller of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of a housing of an automotive electric power steering electronic controller of the present invention;

[0021] Figure 3 It is a partial structural schematic diagram of an upper circuit board and a lower circuit board of an automotive electric power steering electronic controller of the present invention;

[0022] Figure 4 It is a partial structural schematic diagram of a reverse flow cover and a heat dissipation fan blade of an automotive electric power steering electronic controller of the present invention;

[0023] Figure 5 It is a schematic diagram of the partial structure of the guide vane of an electric power steering electronic controller for an automobile according to the present invention;

[0024] Figure 6 It is a schematic diagram of the partial structure in the center compartment of an electric power steering electronic controller for an automobile according to the present invention;

[0025] Figure 7 The present invention is a schematic diagram of the local structure of an elastic member of an electronic controller for electric power steering of an automobile.

[0026] 1. Power steering controller; 101. Housing; 102. Heat sink fins; 103. Wiring port; 104. Heat insulation block; 105. Heat sink blades; 106. Backflow cover; 107. Fixing frame 1; 108. Through pipe; 109. Upper circuit board; 110. Control chip; 111. Connection module; 112. Center compartment; 113. Lower circuit board; 114. Electronic component group; 115. Fixing frame 2; 116. Fixing rod; 117. Fixing shaft; 118. Guide vane; 119. One-way valve; 120. Storage bag; 121. Pressure plate; 122. Elastic member; 123. Opening; 124. Support frame; 125. Side ring 1; 126. Side ring 2. DETAILED DESCRIPTION

[0027] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0028] like Figure 1-Figure 7The electric power steering electronic controller of an automobile shown in the figure includes a power steering controller 1, which includes a housing 101, an upper circuit board 109 is arranged at the upper part of the housing 101, a lower circuit board 113 is arranged at the bottom of the upper circuit board 109, a control chip 110 is installed on the top of the upper circuit board 109, and an electronic component group 114 is installed at the bottom of the lower circuit board 113. Both sides of the upper circuit board 109 and the lower circuit board 113 are fixedly connected by a support frame 124. The support frame An opening 123 is provided in the middle of each of the upper circuit board 109 and the lower circuit board 113, a connection module 111 is installed in the middle of one side of each of the upper circuit board 109 and the lower circuit board 113, a wiring port 103 is installed in the middle of one end of the connection module 111 away from the upper circuit board 109 and the lower circuit board 113, the wiring port 103 is installed in the middle of one side of the shell 101, a heat insulation block 104 is installed in the middle of the upper and lower ends of the shell 101, a cavity is provided inside the heat insulation block 104, and evenly distributed heat dissipation fins 102 are provided in the middle of the outer periphery of the shell 101;

[0029] Furthermore, in a specific implementation, the power steering controller 1 can be installed on the car through the wiring port 103, and the signal receiving and output control work can be completed through the control chip 110 and the electronic component group 114 inside the power steering controller 1. The power steering structure can be controlled by the power steering controller 1 during the electric power steering of the car. When the power steering controller 1 is actually used, the heat dissipation fins 102 can facilitate the heat dissipation of the power steering controller 1. At the same time, the heat insulation blocks 104 at the upper and lower parts of the power steering controller 1 and the heat dissipation fins 102 at the edge can fully insulate the power steering controller 1 from the surrounding parts and other structures in the car, thereby effectively reducing the direct transfer of heat, extending the heat transfer path, so that the heat can be fully dissipated when it is transferred to the power steering controller 1, reducing the heat accumulation of the power steering controller 1, which is beneficial to actual use. At the same time, The traditional integrated circuit board is separated into an upper circuit board 109 and a lower circuit board 113, and the upper circuit board 109 and the lower circuit board 113 are connected at one end through a connecting module 111 so that they can be used normally. The control chip 110 is separated from the remaining electronic component group 114 so that the heat generated by the two when working can be dissipated separately, so that the heat generated by the two when working will not accumulate and overlap with each other, and the mutual influence between the two can be effectively avoided. At the same time, a large space is left between the upper circuit board 109 and the lower circuit board 113 through the support of the support frame 124, which reduces the heat transfer between the upper circuit board 109 and the lower circuit board 113, and can avoid the control chip 110 and the electronic component group 114 from being completely damaged when problems occur with the control chip 110 and the electronic component group 114 and breakdown occurs, thereby achieving the preservation of part of the structure, which is beneficial to actual use.

[0030] Among them, a middle bin 112 is arranged between the upper circuit board 109 and the lower circuit board 113, and pressure plates 121 are arranged at the upper and lower parts of the middle bin 112, and the pressure plates 121 are slidably connected to the middle bin 112, and a storage bag 120 is installed in the middle of the side away from the pressure plate 121, and a heat-sensitive gas is arranged inside the storage bag 120, and the storage bag 120 is arranged in the upper and lower parts of the middle bin 112, and a through pipe 108 is fixedly connected to the middle part of the front side of the middle bin 112, and a fixing frame 107 is penetrated in the middle part of the through pipe 108, and the through pipe 108 is rotatably connected to the fixing frame 107, and the fixing frame 107 is arranged between the upper circuit board 109 and the lower circuit board 113, and both ends of the fixing frame 107 are fixedly connected to the shell 101, and the end of the through pipe 108 away from the middle bin 112 penetrates the front end of the shell 101;

[0031] Furthermore, in a specific implementation, when the power steering controller 1 is working, the heat generated by the control chip 110 and the electronic component group 114 will be transferred to the upper and lower parts of the central compartment 112, and the heat can be quickly absorbed and expanded through the heat-sensitive material in the storage bag 120 inside the central compartment 112, so that the storage bag 120 can be enlarged, and the pressure plate 121 can be squeezed by the storage bag 120, forcing the pressure plate 121 to move, so that the upper and lower pressure plates 121 will move toward the middle. In this process, the hotter gas in the middle part of the central compartment 112 can be forced out and discharged from the inside of the power steering controller 1 through the through pipe 108, thereby quickly reducing the heat accumulation rate inside the power steering controller 1 and reducing the heat retention inside the power steering controller 1.

[0032] Among them, a fixing frame 2 115 is installed in the middle of the outer periphery of the central bin 112, both ends of the fixing frame 2 115 are fixedly connected to the inside of the shell 101, a side ring 125 is installed in the middle of the front side of the fixing frame 2 115, and a side ring 2 126 is installed in the middle of the rear side of the fixing frame 2 115. A check valve is installed inside the through pipe 108, and a one-way valve 119 is installed in the middle of one end of the central bin 112 away from the through pipe 108. The through pipe 108 is arranged on the inner side of the side ring 125, and the one-way valve 119 is arranged on the inner side of the side ring 2 126. Elastic pieces 122 are arranged at the corners of the end close to the pressure plate 121, and the upper and lower ends of the elastic pieces 122 are fixedly connected to the pressure plate 121;

[0033] Furthermore, in a specific implementation, during the process of discharging the internal gas of the power steering controller 1, the guide blades 118 will be encountered, thereby driving the guide blades 118 to rotate. The guide blades 118 can drive the heat dissipation fan blades 105 to rotate synchronously. When the heat dissipation fan blades 105 rotate, they can pull the surrounding airflow to flush the power steering controller 1, thereby taking away the heat on the power steering controller 1 and the surroundings, thereby achieving rapid heat dissipation of the power steering controller 1.

[0034] Among them, a fixed shaft 117 is installed inside the through pipe 108 through a cross fixing frame, and a guide blade 118 is rotatably connected to the middle part of the outer periphery of the fixed shaft 117, and the guide blade 118 is rotatably connected to the inner side of the through pipe 108. The outer periphery of the through pipe 108 is rotatably connected to the heat dissipation fan blade 105, and magnetic materials are provided on the inner side of the heat dissipation fan blade 105 and the outer periphery of the guide blade 118. The heat dissipation fan blade 105 corresponds to the guide blade 118. A reverse flow cover 106 is provided at one end of the through pipe 108 away from the middle compartment 112, and uniformly distributed fixed rods 116 are fixedly connected to the outer periphery of one end of the through pipe 108 away from the middle compartment 112, and one end of the fixed rod 116 away from the through pipe 108 is fixedly connected to the inner side of the reverse flow cover 106, and the reverse flow cover 106 is provided on the side of the heat dissipation fan blade 105 away from the shell 101;

[0035] Furthermore, in a specific implementation, the airflow will encounter the reverse flow cover 106 after being discharged from the through pipe 108. The airflow can be guided back through the inner arc surface of the reverse flow cover 106, so that the airflow can flow back to blow on the outside of the power steering controller 1, so that the outer periphery of the power steering controller 1 is filled with flowing airflow, and the heat on the power steering controller 1 can be taken away by the flowing airflow, thereby achieving heat dissipation of the power steering controller 1. At the same time, the airflow will encounter the heat dissipation fan blades 105 during the reverse flow process, thereby assisting the heat dissipation fan blades 105 in the heat dissipation work of the power steering controller 1, which is beneficial to actual use.

[0036] Working principle:

[0037] In actual use, the power steering controller 1 can be installed on the car through the wiring port 103, and the signal reception and output control work can be completed through the control chip 110 and the electronic component group 114 inside the power steering controller 1. The power steering structure can be controlled by the power steering controller 1 during the electric power steering of the car. When the power steering controller 1 is actually used, the heat dissipation fins 102 can facilitate the heat dissipation of the power steering controller 1. At the same time, the upper and lower insulation blocks 104 of the power steering controller 1 and the heat dissipation fins 102 on the edge can fully insulate the upper and lower parts of the power steering controller 1 from the surrounding parts and other structures in the car, thereby effectively reducing the direct transfer of heat, extending the heat transfer path, and making the heat transfer When it is handed over to the power steering controller 1, it can be fully dissipated, reducing the heat accumulation of the power steering controller 1, which is beneficial to practical use. At the same time, the traditional integrated circuit board is separated into an upper circuit board 109 and a lower circuit board 113, and the upper circuit board 109 and the lower circuit board 113 are combined at one end through a connecting module 111 so that they can be used normally. By separating the control chip 110 from the remaining electronic component group 114, the heat of the two when working can be dissipated separately, so that the heat of the two when working will not accumulate and overlap each other, and the mutual influence between the two can be effectively avoided. At the same time, a large space is left between the upper circuit board 109 and the lower circuit board 113 through the support of the support frame 124, which reduces the upper circuit board While heat is transferred between 109 and the lower circuit board 113, when problems occur in the control chip 110 and the electronic component group 114 and breakdown occurs, the control chip 110 and the electronic component group 114 can be prevented from being involved and completely damaged, thereby achieving the preservation of part of the structure, which is beneficial to practical use. When the power steering controller 1 is working, the heat generated by the control chip 110 and the electronic component group 114 will be transferred to the upper and lower parts of the middle compartment 112, and the heat-sensitive material in the storage bag 120 inside the middle compartment 112 can quickly absorb the heat and expand, so that the storage bag 120 can be enlarged, and the storage bag 120 can squeeze the pressure plate 121, forcing the pressure plate 121 to move, so that the upper and lower pressure plates 1 21 will move toward the middle, and in this process, the hotter gas in the middle of the center chamber 112 can be forced out and discharged from the inside of the power steering controller 1 through the through pipe 108, thereby quickly reducing the heat accumulation rate inside the power steering controller 1 and reducing the heat retention inside the power steering controller 1. In the process of discharging the gas inside the power steering controller 1, the guide blade 118 will be encountered, thereby driving the guide blade 118 to rotate, and the heat dissipation fan blade 105 can be driven to rotate synchronously through the guide blade 118. When the heat dissipation fan blade 105 rotates, it can pull the surrounding airflow to flush the power steering controller 1, thereby taking away the heat on the power steering controller 1 and the surroundings, and realizing rapid heat dissipation of the power steering controller 1.At the same time, after the airflow is discharged from the through pipe 108, it will encounter the reverse flow cover 106. The inner arc surface of the reverse flow cover 106 can guide the airflow back, so that the airflow can flow back to blow the outside of the power steering controller 1, so that the outer periphery of the power steering controller 1 is filled with flowing airflow, and the heat on the power steering controller 1 can be taken away by the flowing airflow, so as to achieve the heat dissipation of the power steering controller 1. At the same time, the airflow will encounter the heat dissipation fan blades 105 during the reverse flow process, so as to assist the heat dissipation fan blades 105 in the heat dissipation work of the power steering controller 1, which is beneficial to practical use.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An electronic controller for electric power steering of an automobile, comprising a power steering controller (1), characterized in that: The power steering controller (1) comprises a housing (101), an upper circuit board (109) is arranged in the upper part of the housing (101), a lower circuit board (113) is arranged at the bottom of the upper circuit board (109), a control chip (110) is installed at the top of the upper circuit board (109), an electronic component group (114) is installed at the bottom of the lower circuit board (113), both sides of the upper circuit board (109) and the lower circuit board (113) are fixedly connected by a support frame (124), the middle of each support frame (124) is provided with an opening (123), and a connection module (111) is installed in the middle of one side of each of the upper circuit board (109) and the lower circuit board (113), and the connection module (111) is installed in the middle of each side of the upper circuit board (109) and the lower circuit board (113). 1) A wiring port (103) is installed in the middle of one end away from the upper circuit board (109) and the lower circuit board (113), the wiring port (103) is installed in the middle of one side of the housing (101), a central bin (112) is arranged between the upper circuit board (109) and the lower circuit board (113), a pressing plate (121) is arranged at the upper and lower parts of the central bin (112), the pressing plate (121) is slidably connected to the central bin (112), a material storage bag (120) is installed in the middle of the side away from the pressing plate (121), a heat-sensitive gas is arranged inside the material storage bag (120), the material storage bag (120) is arranged at the upper and lower parts of the central bin (112), and a central part of the outer periphery of the central bin (112) is installed A second fixing frame (115) is provided, both ends of the second fixing frame (115) are fixedly connected to the inside of the shell (101), a side ring (125) is installed in the middle of the front side of the second fixing frame (115), and a side ring (126) is installed in the middle of the rear side of the second fixing frame (115), and an elastic member (122) is provided at the corner of the end close to the pressing plate (121), and the upper and lower ends of the elastic member (122) are fixedly connected to the pressing plate (121), a through pipe (108) is fixedly connected to the middle of the front side of the middle compartment (112), and a fixing frame (107) is passed through the middle of the through pipe (108), and the through pipe (108) is rotatably connected to the fixing frame (107), and the fixing frame (107) is arranged on the upper circuit board (101). 9) between the lower circuit board (113), both ends of the fixing frame (107) are fixedly connected to the shell (101), one end of the through pipe (108) away from the middle compartment (112) passes through the front end of the shell (101), a fixing shaft (117) is installed inside the through pipe (108) through a cross fixing frame, a guide blade (118) is rotatably connected to the middle part of the outer periphery of the fixing shaft (117), the guide blade (118) is rotatably connected to the inner side of the through pipe (108), a heat dissipation blade (105) is rotatably connected to the outer periphery of the through pipe (108), the inner side of the heat dissipation blade (105) and the outer periphery of the guide blade (118) are both provided with magnetic materials, and the heat dissipation blade (105) corresponds to the guide blade (118),The heat-sensitive material in the storage bag (120) inside the central compartment (112) can quickly absorb heat and expand, so that the storage bag (120) can be enlarged, and the storage bag (120) can squeeze the pressure plate (121), forcing the pressure plate (121) to move, so that the upper and lower pressure plates (121) move closer to the middle. In this process, the hotter gas in the middle of the central compartment (112) can be forced out and discharged from the inside of the power steering controller (1) through the through pipe (108).

2. The automotive electric power steering electronic controller according to claim 1, characterized in that: A deflector (106) is provided at one end of the through pipe (108) away from the central compartment (112); evenly distributed fixing rods (116) are fixedly connected to the outer periphery of the one end of the through pipe (108) away from the central compartment (112); one end of the fixing rods (116) away from the through pipe (108) is fixedly connected to the inner side of the deflector (106); and the deflector (106) is provided on a side of the heat dissipation fan blade (105) away from the housing (101).

3. The electronic controller for electric power steering of an automobile according to claim 2, characterized in that: A check valve is installed inside the through pipe (108), a one-way valve (119) is installed in the middle of one end of the central chamber (112) away from the through pipe (108), the through pipe (108) is arranged on the inner side of the first side ring (125), and the one-way valve (119) is arranged on the inner side of the second side ring (126).

4. The automotive electric power steering electronic controller according to claim 1, characterized in that: Heat insulation blocks (104) are installed in the middle of the upper and lower ends of the shell (101), cavities are provided inside the heat insulation blocks (104), and evenly distributed heat dissipation fins (102) are provided in the middle of the outer periphery of the shell (101).

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