New energy controller

Abstract

The invention discloses a new energy controller, and relates to the technical field of electrical products. Comprising a controller body, the controller body comprises a case, no less than one control module is arranged in the case, a cooling fin set is arranged at the bottom of the case, a cooling fan is arranged in the cooling fin set, and an upper cover plate is arranged at the top of the case. A plurality of arc-shaped fins form a heat dissipation arc-shaped air channel, when air flows in the heat dissipation arc-shaped air channel, the air can make full contact with the two sides of the fins to take away heat on the fins, and the corrugated grooves in the two sides of the fins further increase the heat dissipation area of the fins, increase air resistance and prolong the staying time of the air in the heat dissipation arc-shaped air channel, so that the heat dissipation efficiency is improved. The top compression waterproof sealing ring is used for sealing, the side plug is used for sealing, the waterproof ventilation valve is used for sealing, compared with a conventional design, the sealing protection grade is greatly improved, the copper bar and the control module are fixed through lock screws, and assembling and wiring are more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical products, in particular to a new energy controller. Background Art

[0002] The high-voltage system of new energy vehicles is an important part of modern automobile technology, and the controller is an indispensable part of this system. The main function of the controller is to convert the direct current (DC) provided by the battery pack into alternating current (AC). The drive system of new energy vehicles, such as motors, usually requires AC to work. The controller can ensure that the current is supplied to the motor in the correct form and frequency, and can switch between high and low speeds and change gears to change speed, thereby driving the vehicle.

[0003] New energy controllers generally use air cooling to dissipate heat, but the fins of air cooling are straight structures and cannot effectively contact the air, so the heat dissipation effect is not ideal. In addition, the copper busbars of traditional controller modules are fixed by welding, which affects the assembly efficiency and the use effect is not ideal. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy controller, comprising a controller body, the controller body comprising a chassis, the interior of the chassis is provided with at least one control module, the bottom of the chassis is provided with a heat dissipation fin group, the interior of the heat dissipation fin group is provided with a heat dissipation fan, and the top of the chassis is provided with an upper cover plate.

[0005] As a preferred technical solution of the present invention, the number of the control modules is not less than two, and the two control modules are electrically connected via a copper busbar, which includes copper busbar one, copper busbar two, and copper busbar three.

[0006] As a preferred technical solution of the present invention, the chassis and the upper cover are fixed by screws, and a waterproof sealing ring is also provided between the chassis and the upper cover, and the screws for fixing the chassis and the upper cover pass through the inside of the waterproof sealing ring.

[0007] As a preferred technical solution of the present invention, the plurality of fins in the heat dissipation fin group are all arc-shaped and corrugated grooves are provided on both sides of the fins.

[0008] As a preferred technical solution of the present invention, a bottom cover plate is fixedly arranged at the bottom of the cooling fin group, and air suction holes corresponding to the cooling fan are arranged inside the bottom cover plate. The cooling fan is arranged at the top of the bottom cover plate, and a cooling fan mesh cover corresponding to the air suction holes is also arranged at the bottom of the bottom cover plate.

[0009] As a preferred technical solution of the present invention, waterproof plug one, waterproof plug two and several waterproof plug three are arranged on one side of the chassis.

[0010] As a preferred technical solution of the present invention, a plurality of waterproof plugs four and five are provided on a side of the chassis away from the waterproof plug one.

[0011] As a preferred technical solution of the present invention, a side of the chassis away from the waterproof plug is further provided with a plurality of cover plates by means of screws.

[0012] As a preferred technical solution of the present invention, a waterproof breathable valve is provided on one side of the chassis.

[0013] As a preferred technical solution of the present invention, the chassis and the heat dissipation fin group are both made of aluminum material.

[0014] Compared with the prior art, the present invention provides a new energy controller with the following beneficial effects: The new energy controller has several arc-shaped fins forming an arc-shaped heat dissipation duct. When the air flows in the arc-shaped heat dissipation duct, it can fully contact both sides of the fins to take away the heat on the fins. The corrugated grooves on both sides of the fins further increase the heat dissipation area of ​​the fins, while increasing the air resistance and the residence time of the air in the arc-shaped heat dissipation duct, further ensuring the heat dissipation effect. The top compression waterproof sealing ring seal plus the side plug seal plus the waterproof breathable valve have greatly improved the sealing protection level compared with the conventional design. The copper busbar and the control module are fixed with screws, making assembly and wiring more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an exploded diagram of the structure of a new energy controller proposed by the present invention; Figure 2 A schematic diagram of the chassis structure of a new energy controller proposed by the present invention; Figure 3 This is a schematic diagram of the structure of a heat dissipation fin group of a new energy controller proposed by the present invention; Figure 4 This is a schematic diagram of the heat dissipation fan structure of a new energy controller proposed by the present invention.

[0016] In the figure: 1. controller body; 11. chassis; 111. waterproof plug one; 112. waterproof plug two; 113. waterproof plug three; 114. waterproof plug four; 115. waterproof plug five; 12. upper cover; 13. waterproof sealing ring; 14. control module; 141. copper busbar one; 142. copper busbar two; 143. copper busbar three; 15. cooling fan; 16. bottom cover; 161. cooling fan mesh cover; 162. air suction hole; 17. cooling fin assembly; 18. waterproof air valve; 19. cover plate. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-4 A new energy controller includes a controller body 1, the controller body 1 includes a chassis 11, at least one control module 14 is arranged inside the chassis 11, a heat dissipation fin group 17 is arranged at the bottom of the chassis 11, a heat dissipation fan 15 is arranged inside the heat dissipation fin group 17, and an upper cover plate 12 is arranged on the top of the chassis 11.

[0019] A number of arc-shaped fins form an arc-shaped heat dissipation duct. When the air flows in the arc-shaped heat dissipation duct, it can fully contact the two sides of the fins to take away the heat on the fins. The corrugated grooves on both sides of the fins further increase the heat dissipation area of ​​the fins, while increasing the air resistance and the residence time of the air in the arc-shaped heat dissipation duct, further ensuring the heat dissipation effect. The top compression waterproof sealing ring 13 seals plus the side plug seals plus the waterproof breathable valve 18, which greatly improves the sealing protection level compared with the conventional design. The copper busbar and the control module 14 are fixed with screws, and assembly and wiring are more convenient.

[0020] As a specific technical solution of this embodiment, the number of the control modules 14 is not less than two, and the two control modules 14 are electrically connected via a copper busbar, which includes a copper busbar 1 141 , a copper busbar 2 142 , and a copper busbar 3 143 .

[0021] In this implementation, the copper busbar is fixed to the control module 14 by screws. Copper busbar three 143 serves as a signal grounding bus, and forms an electromagnetic shielding structure with the positive pole of copper busbar one 141 and the negative pole of copper busbar two 142. The two control modules 14 connect the alternating current AC supplied to various components in series to form a loop, realizing dual-channel transmission of power and signals. The redundant design improves system reliability, and the method of fixing with screws makes assembly more convenient.

[0022] As a specific technical solution of this embodiment, the chassis 11 and the upper cover 12 are fixed by screws, and a waterproof sealing ring 13 is also arranged between the chassis 11 and the upper cover 12, and the screws for fixing the chassis 11 and the upper cover 12 pass through the inside of the waterproof sealing ring 13.

[0023] In this embodiment, the screw pre-tightening force causes the waterproof sealing ring 13 to produce axial compression deformation, filling the assembly tolerance between the chassis 11 and the upper cover plate 12. The dynamic pressure compensation seal ensures the sealing of the chassis 11 and avoids water seepage inside the chassis 11. The upper cover plate 12 and the chassis 11 are connected by screws, which facilitates wiring, replacement and maintenance.

[0024] As a specific technical solution of this embodiment, the several fins in the heat dissipation fin group 17 are all arc-shaped and corrugated grooves are provided on both sides of the fins.

[0025] In this embodiment, the arc-shaped fins are provided to start the cooling fan 15, and the cooling fan 15 sucks air to blow toward the cooling fin group 17. Several arc-shaped fins form a cooling arc-shaped air duct. When the air flows in the cooling arc-shaped air duct, it can fully contact both sides of the fins to take away the heat on the fins. The corrugated grooves on both sides of the fins further increase the cooling area of ​​the fins, while increasing the air resistance and the residence time of the air in the cooling arc-shaped air duct, thereby further ensuring the cooling effect.

[0026] As a specific technical solution of this embodiment, a bottom cover plate 16 is fixedly provided at the bottom of the heat dissipating fin group 17, and an air suction hole 162 corresponding to the heat dissipating fan 15 is provided inside the bottom cover plate 16. The heat dissipating fan 15 is arranged at the top of the bottom cover plate 16, and a heat dissipating fan mesh cover 161 corresponding to the air suction hole 162 is also provided at the bottom of the bottom cover plate 16.

[0027] In this embodiment, the cooling fan 15 is started, and the cooling fan 15 draws air through the air suction hole 162. The air is filtered by the cooling fan mesh cover 161 and then sucked into the cooling fan 15. The cooling fan 15 then blows the air toward the cooling fin group 17. The cooling fan mesh cover 161 is ≤2mm, which takes into account both flux and protection.

[0028] As a specific technical solution of this embodiment, a waterproof plug 1 111, a waterproof plug 2 112 and several waterproof plugs 3 113 are provided on one side of the chassis 11, and a waterproof plug 4 114 and a waterproof plug 5 115 are provided on the side of the chassis 11 away from the waterproof plug 1 111.

[0029] In this implementation scheme, waterproof plug 1 111, waterproof plug 2 112, waterproof plug 3 113, waterproof plug 4 114 and waterproof plug 5 115 are respectively the main power interface, CAN bus communication interface, auxiliary equipment interface group, cooling system control interface and low-voltage control signal interface. The main power interface is used for DC power input and AC output main channel. The CAN bus communication interface is used for control signal transmission and status feedback between modules. The auxiliary equipment interface group is used for external sensors, instruments and other expansion devices. The cooling system control interface uses the start and stop control and temperature monitoring of the cooling fan 15. The low-voltage control signal interface is used for vehicle ECU control signal access. Waterproof plug 2 112 has a built-in humidity sensor to monitor the status of the sealed cavity of the chassis 11 in real time.

[0030] As a specific technical solution of this embodiment, a side of the chassis 11 away from the waterproof plug 111 is further provided with a plurality of cover plates 19 by means of screws, and a waterproof breathable valve 18 is provided on one side of the chassis 11.

[0031] In this embodiment, the waterproof breathable valve 18 is set to automatically adjust the pressure difference between the inside and outside of the chassis 11 to avoid deformation of the sealing structure due to temperature changes, maintain the stability of the chassis 11, and accelerate the gas exchange through the microporous membrane when the control module 14 is running at high load. The waterproof breathable valve 18 adopts an expanded polytetrafluoroethylene membrane structure to achieve IP68 protection and can resist 20kPa water pressure penetration. As a specific technical solution of this embodiment, the chassis 11 and the heat dissipation fin group 17 are both made of aluminum material.

[0032] In this embodiment, the density of aluminum is only 1 / 3 of that of steel, which reduces the weight of the entire machine and meets the lightweight requirements of vehicle-mounted equipment. The heat sink fin group 17 adopts high-pressure aluminum casting technology, and the fin thickness can be controlled between 0.5-1.2mm, which reduces weight while maintaining structural strength. Aluminum has high thermal conductivity and can quickly transfer the heat generated by the control module 14 to the heat sink fin group 17. Combined with the arc-shaped fin design, the heat dissipation area is increased compared to traditional straight fins, and the thermal diffusion is excellent, avoiding damage to electronic components caused by local high temperature. ‌‌ To sum up, in the new energy controller, several arc-shaped fins form an arc-shaped heat dissipation duct. When the air flows in the arc-shaped heat dissipation duct, it can fully contact the two sides of the fins to take away the heat on the fins, and the corrugated grooves on both sides of the fins further increase the heat dissipation area of ​​the fins, while increasing the air resistance and the residence time of the air in the arc-shaped heat dissipation duct, further ensuring the heat dissipation effect. The top compression waterproof sealing ring 13 seals plus the side plug seals plus the waterproof breathable valve 18, which greatly improves the sealing protection level compared with the conventional design. The copper busbar and the control module 14 are fixed with screws, and assembly and wiring are more convenient.

[0033] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0034] Although 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy controller, comprising a controller body (1), characterized in that: The controller body (1) comprises a chassis (11), wherein at least one control module (14) is arranged inside the chassis (11), a heat dissipation fin group (17) is arranged at the bottom of the chassis (11), a heat dissipation fan (15) is arranged inside the heat dissipation fin group (17), and an upper cover plate (12) is arranged on the top of the chassis (11).

2. A new energy controller according to claim 1, characterized in that: The number of the control modules (14) is not less than two, and the two control modules (14) are electrically connected via a copper busbar, which comprises a copper busbar 1 (141), a copper busbar 2 (142), and a copper busbar 3 (143).

3. A new energy controller according to claim 1, characterized in that: The chassis (11) and the upper cover plate (12) are fixed by screws. A waterproof sealing ring (13) is also provided between the chassis (11) and the upper cover plate (12). The screws for fixing the chassis (11) and the upper cover plate (12) pass through the interior of the waterproof sealing ring (13).

4. A new energy controller according to claim 1, characterized in that: The plurality of fins in the heat dissipation fin group (17) are all arc-shaped and corrugated grooves are provided on both sides of the fins.

5. A new energy controller according to claim 1, characterized in that: A bottom cover plate (16) is fixedly arranged at the bottom of the heat dissipation fin group (17); an air suction hole (162) corresponding to the heat dissipation fan (15) is arranged inside the bottom cover plate (16); the heat dissipation fan (15) is arranged on the top of the bottom cover plate (16); and a heat dissipation fan mesh cover (161) corresponding to the air suction hole (162) is also arranged at the bottom of the bottom cover plate (16).

6. A new energy controller according to claim 1, characterized in that: One side of the chassis (11) is provided with a waterproof plug one (111), a waterproof plug two (112) and a plurality of waterproof plug threes (113).

7. A new energy controller according to claim 1, characterized in that: A plurality of waterproof plugs four (114) and five waterproof plugs (115) are arranged on a side of the chassis (11) away from the waterproof plug one (111).

8. A new energy controller according to claim 1, characterized in that: A plurality of cover plates (19) are also provided on one side of the chassis (11) away from the waterproof plug 1 (111) by means of screws.

9. A new energy controller according to claim 1, characterized in that: A waterproof breathable valve (18) is provided on one side of the chassis (11).

10. A new energy controller according to claim 1, characterized in that: The chassis (11) and the heat dissipation fin group (17) are both made of aluminum material.

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