Integrated shell of control unit and automobile control unit applying same

Abstract

The invention relates to the technical field of automobiles, and discloses an integrated shell of a control unit and the automobile control unit applying the shell, the integrated shell comprises an integrated mechanism, a module mechanism is arranged in the integrated mechanism, an angle mechanism is arranged on the outer side of the module mechanism, and the top of the module mechanism is assembled with the interior of the integrated mechanism. The angle mechanism is fixedly connected with the surface of the integrated mechanism; the integrated mechanism comprises a steering wheel, the top of the steering wheel is sleeved with a heating pad, a base is arranged at the bottom of the steering wheel, a wire harness bus is arranged in the steering wheel, the outer end of the wire harness bus is fixedly connected with a steering wheel main switch, and an HOD function logic electronic component is installed in the steering wheel. A heating function logic electronic component is installed in the steering wheel. According to the integrated shell of the control unit and the automobile control unit applying the shell, the steering wheel main switch, the HOD and the steering wheel heater are integrated in the same shell, so that the installation is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, in particular to an integrated housing of a control unit and an automobile control unit using the housing. Background Art

[0002] The function of an automotive electronic control unit is to comprehensively analyze and process the electrical signals input by each sensor and the feedback electrical signals of some actuators, provide a reference voltage to the sensor, and then output a control signal to the actuator so that the actuator works according to the requirements of the control target.

[0003] Traditional steering wheel switches, HOD, heating, and steering wheel angle sensors are all modules with independent functions, which have the disadvantages of high cost, long development time, and large space occupation. There are also some cases that integrate the electronic functions of steering wheel switches, HOD, and heating into the switch or HOD / heating module, but the module still exists in the steering wheel and still needs to be redesigned. Its cost, development time, and space occupation are reduced compared to fully independent ones. At present, the switch lighting and heating control components of the car steering wheel are distributed in various positions of the car steering wheel, so they need to be installed separately during installation, and the overall process is more.

[0004] Therefore, there is an urgent need for an integrated housing of a control unit and an automobile control unit using the housing. Summary of the invention

[0005] The object of the present invention is to provide an integrated housing of a control unit and an automobile control unit using the housing, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an integrated housing of a control unit, comprising an integrated mechanism, a module mechanism is arranged inside the integrated mechanism, an angle mechanism is arranged outside the module mechanism, the top of the module mechanism is assembled with the inside of the integrated mechanism, and the angle mechanism is fixedly connected with the surface of the integrated mechanism; The integrated mechanism comprises a steering wheel, a heating pad is provided on the top of the steering wheel, a base is provided on the bottom of the steering wheel, a wiring harness bus is provided inside the steering wheel, a steering wheel master switch is fixedly connected to the outer end of the wiring harness bus, a HOD function logic electronic component is installed inside the steering wheel, and a heating function logic electronic component is installed inside the steering wheel; The module mechanism includes a buffer sleeve, two of which are provided, the tops of the two buffer sleeves are in contact with the steering wheel, a turntable cover is provided at the bottom of the buffer sleeve, the two buffer sleeves are sleeved with the turntable cover, the top of the turntable cover is assembled with the bottom of the steering wheel, a turntable seat is provided at the top of the base, and the top of the turntable seat is installed with the turntable cover.

[0007] Preferably, two steering wheel master switches are provided, and touch switches are installed on the surfaces of the two steering wheel master switches. Functional logic electronic components are installed inside one of the steering wheel master switches, and steering wheel switch lighting is installed inside the other steering wheel master switch.

[0008] Preferably, one of the touch switches is electrically connected to a functional logic electronic component, and the other touch switch is electrically connected to a steering wheel switch lighting.

[0009] Preferably, a PCBA is provided at the bottom of the turntable cover, the bottom of the PCBA is mounted on the turntable seat, a first calculating gear is provided at the top of the PCBA, and a second calculating gear is provided at the top of the PCBA.

[0010] Preferably, two tooth grooves are provided on the surface of the turntable seat, one of the tooth grooves is adapted to the first calculation gear, and the other tooth groove is adapted to the second calculation gear, and the first calculation gear and the second calculation gear are both made of POM material, an engineering plastic with excellent wear resistance and self-lubricating properties, and has an embedded injection molded magnet.

[0011] Preferably, the two buffer sleeves are made of silicone rubber material with high elasticity and good electrical insulation performance, and the turntable cover and turntable seat are made of PC+ABS material, a thermoplastic plastic alloy with high impact strength and heat resistance.

[0012] On the other hand, the present application also provides an automobile control unit, including a combination switch, which is arranged in an angle mechanism, the bottom of the combination switch is assembled with the base, the interior of the combination switch is installed with the turntable cover, the interior of the combination switch is installed with a clock spring upper cover, and the inner ring of the clock spring upper cover is provided with an internal gear.

[0013] Preferably, the outer side of the turntable seat is adapted to the inner side of the clock spring upper cover, the outer side of the first calculation gear is meshed with the internal gear of the clock spring upper cover through the tooth groove of the turntable seat, and the outer side of the second calculation gear is meshed with the internal gear of the clock spring upper cover through the tooth groove of the turntable seat.

[0014] Preferably, the interior of the clock spring upper cover is adapted to the PCBA, magnets are installed inside the first computing gear and the second computing gear, AMR sensors are installed inside the first computing gear and the second computing gear, and the two AMR sensors are assembled with the PCBA.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: First, the present invention, wherein the steering wheel includes an HOD, and a pressure sensing device is integrated under the heating pad, which represents the driver's hands-off detection. The HOD functional logic electronic component will detect whether the hands are on the heating pad through the pressure sensing device to determine whether the driver has left the steering wheel. Once it is detected that the hands are away for a long time, it will trigger an alarm to remind the driver to return to the driving position in time. The functional logic electronic components in the steering wheel main switch are integrated with the steering wheel switch lighting through the wiring harness bus, and the heating pad is heated by heating the functional logic electronic components. The steering wheel main switch, HOD and steering wheel heating are all integrated into the same housing, making installation more convenient.

[0016] Second, the present invention uses a buffer sleeve to buffer the assembly between the turntable cover and the steering wheel, and the turntable cover and the turntable seat are used to fix the internal parts under the steering wheel to maintain stability. The spatial structure formed by the turntable cover and the turntable seat is called a four-in-one module box. The first calculation gear and the second calculation gear in the four-in-one module box can be protected by the turntable seat, and the edges of part of the first calculation gear and the second calculation gear are exposed to the outside by the position of the tooth groove, so that they can interact normally. At the same time, a mechanical connection is established with the electronic components in the device through PCBA to complete and assist in the interaction of multiple functions. The two buffer sleeves are made of silicone rubber material, and the molecular chain of silicone rubber has a high degree of flexibility, so that it can maintain elasticity in a large range. Therefore, the buffer sleeves have good buffering and shock absorbing effects and can meet its structural needs. The turntable cover and the turntable seat are made of PC+ABS material, a thermoplastic plastic alloy that combines the advantages of PC and ABS, has high impact strength, heat resistance, dimensional stability and chemical corrosion resistance, can reduce costs while enhancing low-temperature toughness to meet its structural needs.

[0017] Third, in the present invention, POM is a high-density, high-crystalline linear polymer with high elastic modulus, rigidity and hardness. Its specific strength and specific rigidity are close to those of metal, which can greatly enhance the wear resistance of gears and prolong their service life. A magnetic connection is generated through the injection-molded magnet in the gear and the magnet. The wiring harness bus includes a CAN bus, PCBA205 integrates an AD converter, a microprocessor and a CAN driver, and is electrically connected to the CAN bus. The steering wheel rotates, driving the four-in-one module box to rotate in the clock spring assembly of the combination switch. The inner ring of the clock spring cover is an internal gear, which drives the two calculation gears of the four-in-one module box. The first calculation gear and the second calculation gear rotate at the same time. The rotation speed difference between the two calculation gears (the two gears have different numbers of teeth) can output the absolute angle of the steering wheel. The signal is converted by the AMR sensor through the AD converter, processed by the microprocessor, and then output from the CAN bus through the CAN driver to complete the implementation of the angle sensor function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial disassembly of the structural integration mechanism of the present invention; Figure 3 It is a schematic diagram of the partial disassembly of the structural integration mechanism of the present invention; Figure 4 It is a three-dimensional top view schematic diagram of the structural module mechanism of the present invention; Figure 5 It is a three-dimensional bottom view schematic diagram of the structural module mechanism of the present invention; Figure 6 It is a three-dimensional disassembly schematic diagram of the structural module mechanism of the present invention; Figure 7 It is a three-dimensional schematic diagram of the structural angle mechanism of the present invention.

[0019] Legend: 1. Integrated mechanism; 101. Steering wheel; 102. Heating pad; 103. Steering wheel master switch; 104. Wiring harness bus; 105. Functional logic electronic components; 106. Touch switch; 107. Steering wheel switch lighting; 108. HOD functional logic electronic components; 109. Heating functional logic electronic components; 110. Base; 2. Module mechanism; 201. Buffer sleeve; 202. Turntable cover; 203. First calculation gear; 204. Second calculation gear; 205. PCBA; 206. Turntable seat; 3. Angle mechanism; 301. Combination switch; 302. Clock spring cover; 303. Magnet; 304. AMR sensor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0021] First, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the present invention provides a technical solution: an integrated shell of a control unit, including an integrated mechanism 1, a module mechanism 2 is arranged inside the integrated mechanism 1, an angle mechanism 3 is arranged outside the module mechanism 2, the top of the module mechanism 2 is assembled with the inside of the integrated mechanism 1, and the angle mechanism 3 is fixedly connected to the surface of the integrated mechanism 1.

[0022] The integrated mechanism 1 includes a steering wheel 101, a heating pad 102 is provided on the top of the steering wheel 101, a base 110 is provided on the bottom of the steering wheel 101, a wiring harness bus 104 is provided inside the steering wheel 101, a steering wheel master switch 103 is fixedly connected to the outer end of the wiring harness bus 104, a HOD function logic electronic component 108 is installed inside the steering wheel 101, and a heating function logic electronic component 109 is installed inside the steering wheel 101; The module mechanism 2 includes a buffer sleeve 201, two buffer sleeves 201 are provided, the tops of the two buffer sleeves 201 are in contact with the steering wheel 101, a turntable cover 202 is provided at the bottom of the buffer sleeve 201, the two buffer sleeves 201 are sleeved with the turntable cover 202, the top of the turntable cover 202 is assembled with the bottom of the steering wheel 101, a turntable seat 206 is provided at the top of the base 110, and the top of the turntable seat 206 is installed with the turntable cover 202.

[0023] There are two steering wheel master switches 103 , and a touch switch 106 is installed on the surface of the two steering wheel master switches 103 . A functional logic electronic component 105 is installed inside one of the steering wheel master switches 103 , and a steering wheel switch lighting 107 is installed inside the other steering wheel master switch 103 .

[0024] One of the touch switches 106 is electrically connected to the functional logic electronic component 105 , and the other touch switch 106 is electrically connected to the steering wheel switch lighting 107 .

[0025] A PCBA 205 is disposed at the bottom of the turntable cover 202 , the bottom of the PCBA 205 is mounted on the turntable seat 206 , a first calculating gear 203 is disposed at the top of the PCBA 205 , and a second calculating gear 204 is disposed at the top of the PCBA 205 .

[0026] There are two tooth grooves on the surface of the turntable seat 206, one of which is adapted to the first calculating gear 203, and the other is adapted to the second calculating gear 204. The first calculating gear 203 and the second calculating gear 204 are both made of POM material, an engineering plastic with excellent wear resistance and self-lubricating properties, and has an embedded injection molded magnet.

[0027] The two buffer sleeves 201 are made of silicone rubber material with high elasticity and good electrical insulation performance, and the turntable cover 202 and the turntable seat 206 are made of PC+ABS material, a thermoplastic plastic alloy with high impact strength and heat resistance.

[0028] On the other hand, an embodiment of the present application also provides a vehicle control unit, including a combination switch 301, which is arranged on the angle mechanism 3, the bottom of the combination switch 301 is assembled with the base 110, the interior of the combination switch 301 is installed with the turntable cover 202, and the interior of the combination switch 301 is installed with a clock spring upper cover 302, and the inner ring of the clock spring upper cover 302 is provided with an internal gear.

[0029] The outer side of the turntable seat 206 is adapted to the inner side of the clock spring upper cover 302, the outer side of the first calculation gear 203 is meshed with the inner gear of the clock spring upper cover 302 through the tooth groove of the turntable seat 206, and the outer side of the second calculation gear 204 is meshed with the inner gear of the clock spring upper cover 302 through the tooth groove of the turntable seat 206.

[0030] The interior of the clock spring upper cover 302 is adapted to the PCBA205 , the interiors of the first calculating gear 203 and the second calculating gear 204 are both equipped with magnets 303 , the interiors of the first calculating gear 203 and the second calculating gear 204 are both equipped with AMR sensors 304 , and both AMR sensors 304 are assembled with the PCBA205 .

[0031] Working principle: The steering wheel 101 includes HOD, and a pressure sensing device is integrated under the heating pad 102, which represents Hands Off Detection. The HOD functional logic electronic component 108 will detect whether the hands are on the heating pad 102 through the pressure sensing device to determine whether the driver has left the steering wheel 101. Once it is detected that the hands are away for a long time, it will trigger an alarm to remind the driver to return to the driving position in time. The functional logic electronic component 105 in the steering wheel main switch 103 is integrated with the steering wheel switch lighting 107 through the wiring harness bus 104, and the heating pad 102 is heated by the heating functional logic electronic component 109. The steering wheel main switch 103, HOD and steering wheel 101 heating are all integrated into the same housing, making installation more convenient. The assembly between the turntable cover 202 and the steering wheel 101 is buffered by the buffer sleeve 201, and the internal parts are fixed under the steering wheel 101 by the two structures of the turntable cover 202 and the turntable seat 206 to maintain stability. The spatial structure formed by the turntable cover 202 and the turntable seat 206 is called a four-in-one module box. The first computing gear 203 and the second computing gear 204 in the four-in-one module box can be protected by the turntable seat 206, and the edges of part of the first computing gear 203 and the second computing gear 204 are exposed to the outside by the position of the tooth groove, so that they can interact normally, and at the same time, PCBA205 is used to communicate with the device. The electronic components inside establish mechanical connections to complete and assist in the interactive collection of multiple functions. Among them, the two buffer sleeves 201 are made of silicone rubber material. The molecular chain of silicone rubber is highly flexible, so that it can maintain elasticity in a large range. Therefore, the buffer sleeves 201 have good buffering and shock absorbing effects and can meet its structural needs. The turntable cover 202 and the turntable seat 206 are made of PC+ABS material, a thermoplastic plastic alloy that combines the advantages of PC and ABS, has high impact strength, heat resistance, dimensional stability and chemical corrosion resistance, can reduce costs while enhancing low-temperature toughness to meet its structural needs.POM is a high-density, high-crystalline linear polymer with high elastic modulus, rigidity and hardness. Its specific strength and specific rigidity are close to those of metal, which can greatly enhance the wear resistance of gears and prolong their service life. The injection-molded magnet in the gear is magnetically connected to the magnet 303. Among them, the wiring harness bus 104 includes a CAN bus, and the PCBA 205 integrates an AD converter, a microprocessor and a CAN driver, and is electrically connected to the CAN bus. The steering wheel 101 rotates, driving the four-in-one module box to rotate in the clock spring assembly of the combination switch 301. The inner ring of the clock spring upper cover 302 is an internal gear, which drives the two calculation gears of the four-in-one module box. The first calculation gear 203 and the second calculation gear 204 rotate at the same time. The two calculation gears have a rotation speed difference (the two gears have different numbers of teeth), and can output the absolute angle of the steering wheel 101. The signal is converted by the AMR sensor 304 through the AD converter, processed by the microprocessor, and then output from the CAN bus through the CAN driver to complete the realization of the angle sensor function.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated housing of a control unit, comprising an integrated mechanism (1), characterized in that: The integrated mechanism (1) is provided with a module mechanism (2) inside, and an angle mechanism (3) is provided outside the module mechanism (2); the top of the module mechanism (2) is assembled with the inside of the integrated mechanism (1), and the angle mechanism (3) is fixedly connected with the surface of the integrated mechanism (1); The integrated mechanism (1) comprises a steering wheel (101), the top of the steering wheel (101) is provided with a heating pad (102), the bottom of the steering wheel (101) is provided with a base (110), a wiring harness bus (104) is provided inside the steering wheel (101), the outer end of the wiring harness bus (104) is fixedly connected to a steering wheel master switch (103), a HOD function logic electronic component (108) is installed inside the steering wheel (101), and a heating function logic electronic component (109) is installed inside the steering wheel (101); The module mechanism (2) comprises a buffer sleeve (201), two of the buffer sleeves (201) are provided, the tops of the two buffer sleeves (201) are fitted with the steering wheel (101), the bottom of the buffer sleeve (201) is provided with a turntable cover (202), the two buffer sleeves (201) are sleeved with the turntable cover (202), the top of the turntable cover (202) is assembled with the bottom of the steering wheel (101), the top of the base (110) is provided with a turntable seat (206), and the top of the turntable seat (206) is installed with the turntable cover (202).

2. The integrated housing of a control unit according to claim 1, characterized in that: Two steering wheel master switches (103) are provided, and a touch switch (106) is installed on the surface of the two steering wheel master switches (103). A functional logic electronic component (105) is installed inside one of the steering wheel master switches (103), and a steering wheel switch lighting (107) is installed inside the other steering wheel master switch (103).

3. The integrated housing of a control unit according to claim 2, characterized in that: One of the touch switches (106) is electrically connected to the functional logic electronic component (105), and the other touch switch (106) is electrically connected to the steering wheel switch lighting (107).

4. The integrated housing of a control unit according to claim 1, characterized in that: A PCBA (205) is arranged at the bottom of the turntable cover (202), the bottom of the PCBA (205) is mounted on the turntable seat (206), a first calculation gear (203) is arranged at the top of the PCBA (205), and a second calculation gear (204) is arranged at the top of the PCBA (205).

5. The integrated housing of a control unit according to claim 4, characterized in that: The surface of the turntable seat (206) is provided with two tooth grooves, one of which is matched with the first calculating gear (203), and the other of which is matched with the second calculating gear (204). The first calculating gear (203) and the second calculating gear (204) are both made of POM material, an engineering plastic with excellent wear resistance and self-lubricating properties, and excellent performance, and have an embedded injection-molded magnet.

6. The integrated housing of a control unit according to claim 5, characterized in that: The two buffer sleeves (201) are made of a silicone rubber material having high elasticity and good electrical insulation performance, and the turntable cover (202) and the turntable seat (206) are made of PC+ABS material.

7. An automobile control unit, using an integrated housing of a control unit according to any one of claims 4 to 6, characterized in that: The invention comprises a combination switch (301), wherein the combination switch (301) is arranged on an angle mechanism (3), the bottom of the combination switch (301) is assembled with a base (110), the interior of the combination switch (301) is installed with a turntable cover (202), a clock spring upper cover (302) is installed inside the combination switch (301), and an inner ring of the clock spring upper cover (302) is provided with an internal gear.

8. The vehicle control unit according to claim 7, characterized in that: The outer side of the turntable seat (206) is matched with the inner side of the clock spring upper cover (302); the outer side of the first calculating gear (203) is meshed with the inner gear of the clock spring upper cover (302) through the tooth groove of the turntable seat (206); and the outer side of the second calculating gear (204) is meshed with the inner gear of the clock spring upper cover (302) through the tooth groove of the turntable seat (206).

9. The vehicle control unit according to claim 8, characterized in that: The interior of the clock spring upper cover (302) is adapted to the PCBA (205), magnets (303) are installed inside the first computing gear (203) and the second computing gear (204), AMR sensors (304) are installed inside the first computing gear (203) and the second computing gear (204), and the two AMR sensors (304) are assembled with the PCBA (205).

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