High-temperature-resistant 48V flat wire generator

Abstract

The utility model discloses a high temperature resistant 48V flat wire generator, which comprises a protective cover, a regulator, a rectifier bridge, a rear cover, a stator assembly, a rotor assembly, a front cover and a belt pulley, adopts a single wire system structure, and comprises a B + screw arranged on the rectifier bridge and three negative diodes arranged on the rear cover, the stator assembly is sleeved outside the rotor assembly and is provided with a 96-slot iron core and a flat copper wire wound on the iron core, a single-wire structure and an eight-claw claw pole structure in which the 96-slot iron core is matched and mutually embedded are adopted, the electromagnetic noise frequency is improved and exceeds an audible range, the electromagnetic noise is indirectly reduced, the good sensitivity of customer experience is improved, and the service life of the motor is prolonged. And the generated power can be improved to 6KW, so that the maximum power of the DCDC for getting on the vehicle in the existing market is met. The stator assembly formed by winding the flat copper wire on the 96-slot iron core can achieve the temperature-resistant grade of 240, and the temperature-resistant grade of the generator is improved.

Description

Technical field:

[0001] The utility model relates to the technical field of automobile generators, in particular to a high-temperature resistant 48V flat wire generator. Background technology:

[0002] The current 48V generator has the following disadvantages: 1. The dual-limit structure (with two terminals B+ and B-) requires two wires to connect the positive and negative poles of the battery or DCDC respectively. Some modified cars have limited space and it is difficult to arrange two wires. The connector interface used by IG makes it difficult for some modification factories to purchase the corresponding connectors. The 36-slot stator and 6-pole structure used have large electromagnetic noise, which affects the customer experience. The generator power is only 4KW. The DCDC power in the market has been increased to more than 4.2KW. Therefore, the generator power is lower than the DCDC power. The generator is in an overloaded condition, and long-term use will reduce its life. Mainstream modified car chassis such as Iveco and Jiangling have heat sources (turbocharged) around the generator. The ambient temperature around the generator has been tested to reach a maximum of 120℃ (far higher than the national standard requirement of 105℃). At this time, the temperature of the generator stator enameled wire will be very high, exceeding its temperature resistance level. At the same time, the existing fan heat dissipation cannot meet this condition, and the stator winding coil will overheat and burn, and the generator will not generate electricity. Utility model content:

[0003] The purpose of the utility model is to solve the existing problems and provide a high temperature resistant 48V flat wire generator.

[0004] The technical solutions of the utility model are as follows:

[0005] A high temperature resistant 48V flat wire generator, comprising a protective cover, a regulator, a rectifier bridge, a rear cover, a stator assembly, a rotor assembly, a front cover and a pulley. The generator adopts a single-wire structure, which includes a B+ screw arranged on the rectifier bridge and three negative diodes installed on the rear cover. The stator assembly is sleeved on the outside of the rotor assembly, and has a 96-slot iron core and a flat copper wire wound on the iron core. The rotor assembly includes eight claw poles that are embedded in each other and a fan fixed on the claw poles.

[0006] Preferably, the regulator is provided with an IG terminal stud, the protective cover is provided with an opening through which the IG terminal stud protrudes, and a plurality of isolation columns are arranged around the opening.

[0007] Preferably, a positive component plate is also provided on the rectifier bridge, and the negative diode and the rear cover constitute the negative component plate, which is connected to the negative electrode of the battery through the vehicle bracket, and a B+ main wiring harness is used to connect the positive electrode of the battery or DCDC.

[0008] Preferably, the inner wall of the iron core is provided with a plurality of rectangular grooves, and the flat copper wires are embedded in the rectangular grooves.

[0009] Preferably, the fan has ≥20 blades.

[0010] The beneficial effects of the utility model are:

[0011] 1. A single-wire structure is adopted, and the negative diode is installed on the rear cover. The rear cover is used to replace the original negative component board. At this time, only one B+ main wiring harness is needed to connect the battery or DCDC positive pole. The generator housing is used as the negative pole to connect the battery negative pole through the vehicle bracket, which solves the problem that the modified vehicle has limited space and it is difficult to arrange two wires.

[0012] 2. The regulator is equipped with IG terminal studs, which can be directly connected to very common connecting pieces.

[0013] 3. The 96-slot iron core is matched with the mutually interlocking eight-claw claw pole structure, and the frequency of electromagnetic noise is increased, exceeding the audible range, which indirectly reduces the electromagnetic noise and improves the customer experience. In addition, the power generation capacity can be increased to 6KW, meeting the maximum power of automotive DCDC in the existing market.

[0014] 4. The stator assembly is made of 96-slot iron core wound with flat copper wire, which can achieve a temperature resistance level of 240, improving the temperature resistance level of the generator.

[0015] 5. The fan blade design increases ventilation volume, improves heat dissipation, and thus reduces the temperature of the stator assembly, preventing the temperature of the stator enameled wire from exceeding its temperature resistance grade. Description of the drawings:

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional exploded schematic diagram of some parts of the utility model;

[0018] In the attached figure: 1. Protective cover; 2. Regulator; 3. Rectifier bridge; 4. Rear cover; 5. Stator assembly; 6. Rotor assembly; 7. Front cover; 8. Pulley; 9. B+ screw; 10. Negative diode; 11. Iron core; 12. Flat copper wire; 13. Claw pole; 14. Fan; 15. IG terminal stud; 16. Isolation column; 17. Positive component board. Specific implementation method:

[0019] 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.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] like Figure 1-2 As shown, a high temperature resistant 48V flat wire generator includes a protective cover 1, a regulator 2, a rectifier bridge 3, a rear cover 4, a stator assembly 5, a rotor assembly 6, a front cover 7 and a pulley 8. The generator adopts a single-wire structure, which includes a B+ screw 9 arranged on the rectifier bridge 3 and three negative diodes 10 installed on the rear cover 4. The stator assembly 5 is sleeved on the outside of the rotor assembly 6, which has a 96-slot iron core 11 and a flat copper wire 12 wound on the iron core 11. The rotor assembly 6 includes octagonal claw poles 13 embedded with each other and a fan 14 fixed on the claw poles 13.

[0025] Specifically, the regulator 2 is provided with an IG terminal stud 15, the protective cover 1 is provided with an opening through which the IG terminal stud 15 protrudes, and a plurality of isolation columns 16 are provided around the opening.

[0026] Specifically, a positive component plate 17 is also provided on the rectifier bridge 3, and the negative diode 10 and the rear cover 4 constitute a negative component plate, which is connected to the negative electrode of the battery through the vehicle bracket, and a B+ main wiring harness is used to connect the positive electrode of the battery or DCDC.

[0027] Specifically, a plurality of rectangular grooves are formed on the inner wall of the iron core 11, and the flat copper wires 12 are embedded in the rectangular grooves.

[0028] Specifically, the number of blades of the fan 14 is ≥ 20, which increases the ventilation volume, improves heat dissipation, and thus reduces the temperature of the stator winding, preventing the temperature of the flat copper wire 12 in the stator assembly from exceeding its temperature resistance grade.

[0029] The generator adopts a single-wire structure, and the negative diode 10 is installed on the rear cover 4. The rear cover 4 replaces the original negative component board. At this time, only one B+ main wiring harness is needed to connect the battery or DCDC positive pole. The generator housing is used as the negative pole to connect the battery negative pole through the vehicle bracket, which solves the problem that the space of the modified vehicle is limited and it is difficult to arrange two wires. The 96-slot iron core 11 is used in conjunction with the mutually embedded eight-claw claw pole 13 structure, which can not only increase the frequency of electromagnetic noise, exceed the audible range, indirectly reduce electromagnetic noise, and improve customer experience, but also the power generation power can be increased to 6KW, which meets the maximum power of vehicle DCDC on the existing market.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high temperature resistant 48V flat wire generator, comprising a protective cover, a regulator, a rectifier bridge, a rear cover, a stator assembly, a rotor assembly, a front cover and a pulley, characterized in that: The generator adopts a single-wire structure, which includes a B+ screw arranged on the rectifier bridge and three negative diodes installed on the rear cover. The stator assembly is sleeved on the outside of the rotor assembly, which has a 96-slot iron core and a flat copper wire wound on the iron core. The rotor assembly includes eight claw poles that are embedded in each other and a fan fixed on the claw poles.

2. The high temperature resistant 48V flat wire generator according to claim 1, characterized in that: The regulator is provided with an IG terminal stud, the protective cover is provided with an opening for the IG terminal stud to extend outward, and a plurality of isolation columns are arranged around the opening.

3. The high temperature resistant 48V flat wire generator according to claim 1, characterized in that: The rectifier bridge is also provided with a positive component plate, and the negative diode and the rear cover constitute the negative component plate, which is connected to the negative electrode of the battery through the vehicle bracket, and a B+ main wiring harness is used to connect the positive electrode of the battery or DCDC.

4. The high temperature resistant 48V flat wire generator according to claim 1, characterized in that: The inner wall of the iron core is provided with a plurality of rectangular grooves, and the flat copper wires are embedded in the rectangular grooves.

5. The high temperature resistant 48V flat wire generator according to claim 1, characterized in that: The fan has ≥20 blades.

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