Electric control device and electric vehicle

Abstract

The embodiment of the present application relates to the technical field of electric vehicles, and discloses an electric control device and an electric vehicle, the electric control device comprising a shell, a power distribution assembly, a charging assembly and a voltage conversion assembly, the shell comprising a main shell and a partition plate, the main shell being provided with a receiving cavity, the partition plate being arranged in the receiving cavity, the partition plate dividing the receiving cavity into a first cavity and a second cavity, the power distribution assembly being arranged in the first cavity, the charging assembly being at least partially arranged in the second cavity, the charging assembly being electrically connected with the power distribution assembly, the voltage conversion assembly being arranged in the second cavity, and the voltage conversion assembly being electrically connected with the power distribution assembly and the charging assembly. In the above manner, the electric control device provided by the embodiment of the present application integrates the power distribution assembly, the charging assembly and the voltage conversion assembly, thereby improving the space utilization and reducing the production cost.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, and in particular to an electronic control device and an electric vehicle. Background Technology

[0002] The on-board charger (OBC), the direct current to direct current converter (DC-DC converter), and the power distribution unit (PDU) are three crucial components in an electric vehicle. The OBC converts alternating current (AC) to direct current (DC) to charge the external battery pack of the electric vehicle. The DC-DC converter converts the high-voltage DC power from the external battery pack to low-voltage DC power for use by the low-voltage electrical system of the electric vehicle. The PDU serves as the central hub for power distribution, safely and efficiently distributing the electrical energy from the external battery pack to the various electrical devices within the electric vehicle.

[0003] Currently, in the structure of electric vehicles, the on-board charger, on-board DC-DC converter, and high-voltage distribution box are usually set up separately, each occupying space and requiring connection through complex wiring harnesses, thereby reducing the space utilization rate of the vehicle and increasing production and maintenance costs. Utility Model Content

[0004] In view of the above problems, embodiments of this application provide an electronic control device and an electric vehicle that overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide an electronic control device, including a housing, a power distribution component, a charging component, and a voltage conversion component. The housing includes a main housing and a partition. The main housing is provided with a receiving cavity. The partition is disposed in the receiving cavity and divides the receiving cavity into a first cavity and a second cavity. The power distribution component is disposed in the first cavity. The charging component is at least partially disposed in the second cavity and is electrically connected to the power distribution component. The voltage conversion component is disposed in the second cavity and is electrically connected to the power distribution component and the charging component.

[0006] In some embodiments, the power distribution assembly includes an external battery adapter and a plurality of functional adapters, the external battery adapter and the plurality of functional adapters being disposed on the side wall of the main housing in the first cavity, the plurality of functional adapters being electrically connected to the external battery adapter, the external battery adapter being used for electrical connection with an external battery.

[0007] In some embodiments, the charging assembly includes a charging circuit board and a power device, wherein the charging circuit board is disposed in the first cavity and the power device is disposed in the second cavity.

[0008] In some embodiments, the main housing is provided with a heat dissipation channel on the bottom wall of the second cavity, the heat dissipation channel being used for the flow of heat dissipation medium.

[0009] In some embodiments, the main housing is provided with a plurality of heat dissipation teeth on the bottom wall of the second cavity, and the plurality of heat dissipation teeth are located in the heat dissipation channel.

[0010] In some embodiments, the electronic control device further includes an insulating plate disposed on the side of the partition facing the second cavity.

[0011] In some embodiments, the housing further includes a mounting member disposed on the outer wall of the main housing in the first cavity and / or the second cavity, the mounting member being used to connect to the outside world to connect the housing to the outside world.

[0012] In some embodiments, the mounting component includes a plurality of mounting posts and a connecting portion, wherein the connecting portion is provided between any two mounting posts, and the mounting posts are provided with mounting holes.

[0013] In some embodiments, the electronic control device further includes a control circuit board disposed in the second cavity, and the control circuit board is electrically connected to the power distribution component, the charging component and the voltage conversion component.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide an electric vehicle, including the above-mentioned electronic control device.

[0015] The beneficial effects of this application's embodiments are as follows: Unlike existing technologies, this application provides an electronic control device and an electric vehicle. The electronic control device includes a housing, a power distribution component, a charging component, and a voltage conversion component. The housing includes a main housing and a partition. The main housing has a receiving cavity, and the partition is disposed within the receiving cavity, dividing the receiving cavity into a first cavity and a second cavity. The power distribution component is disposed in the first cavity, and the charging component is at least partially disposed in the second cavity, electrically connected to the power distribution component. The voltage conversion component is disposed in the second cavity and electrically connected to both the power distribution component and the charging component. Through this method, the electronic control device provided by this application integrates the power distribution component, the charging component, and the voltage conversion component, improving space utilization and reducing production costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a perspective view of the electronic control device provided in the embodiments of this application;

[0018] Figure 2 This is an exploded view of the electronic control device provided in the embodiments of this application;

[0019] Figure 3 This is a perspective view of the outer casing provided in the embodiments of this application;

[0020] Figure 4 This is an exploded view of the outer casing provided in the embodiments of this application;

[0021] Figure 5 yes Figure 3 A sectional view after being cut along section line AA;

[0022] Figure 6 yes Figure 3 A magnified view of a portion of region B in the middle;

[0023] Figure 7 This is a top-view magnified perspective view of the electronic control device after removing the outer casing, provided in the embodiments of this application;

[0024] Figure 8 This is a magnified perspective view of the electronic control device after removing the outer casing, provided in the embodiments of this application, from a bottom-view perspective. Detailed Implementation

[0025] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figures 1 to 3 The electronic control device 1000 includes a housing 1, a power distribution component 2, a charging component 3, and a voltage conversion component 4. The power distribution component 2, the charging component 3, and the voltage conversion component 4 are electrically connected to each other and are all housed within the housing 1.

[0028] For the aforementioned casing 1, please refer to Figures 3 to 5 In some embodiments, the outer shell 1 includes a main shell 11 and a partition 12. The main shell 11 is provided with a receiving cavity 10, and the partition 12 is disposed in the receiving cavity 10, dividing the receiving cavity 10 into a first cavity 101 and a second cavity 102.

[0029] In some embodiments, the main housing 11 includes an upper housing 111 and a lower housing 112, which are detachably connected. The upper housing 111 and the lower housing 112 enclose a receiving cavity 10. A partition 12 is disposed between the upper housing 111 and the lower housing 112. The upper housing 111 and the partition 12 together enclose a first cavity 101, and the lower housing 112 and the partition 12 together enclose a second cavity 102. A power distribution assembly 2 is disposed in the first cavity 101, a charging assembly 3 is at least partially disposed in the second cavity 102, and a voltage conversion assembly 4 is disposed in the second cavity 102.

[0030] In some embodiments, the upper shell 111 includes an upper side plate 1111 and a cover 1112. A partition 12 is disposed at one end of the upper side plate 1111. The upper side plate 1111 and the partition 12 are integrally formed and surround a first receiving groove 1110. The cover 1112 is disposed at the other end of the upper side plate 1111. The cover 1112 can be detachably covered by the first receiving groove 1110 to form a first cavity 101.

[0031] In some embodiments, the main housing 11 is provided with a heat dissipation channel 113 on the bottom wall of the second cavity 102. The heat dissipation channel 113 is not connected to the second cavity 102. The heat dissipation channel 113 is used for the flow of heat dissipation medium, so as to effectively dissipate the heat generated by the electronic control device 1000, especially the components in the second cavity 102, so as to improve the stability of the electronic control device 1000.

[0032] In some embodiments, the lower shell 112 includes a housing 1121 and a bottom plate 1122. The housing 1121 is provided with a second receiving groove 1120, and a partition 12 covers the second receiving groove 1120 to form a second cavity 102. A heat dissipation groove 1123 is provided on the side of the bottom wall of the housing 1121 away from the second receiving groove 1120. The bottom plate 1122 is located on the outer side of the bottom wall of the housing 1121 and is used to cover the heat dissipation groove 1123 to form a heat dissipation channel 113.

[0033] In some embodiments, the lower shell 112 is further provided with an inflow pipe 1124 and an outflow pipe 1125, which are disposed on the side wall of the housing 1121. Both the inflow pipe 1124 and the outflow pipe 1125 are connected to the heat dissipation channel 113. The heat dissipation medium flows into the heat dissipation channel 113 from the inflow pipe 1124, completes heat exchange in the heat dissipation channel 113 to achieve heat dissipation, and then flows out from the outflow pipe 1125.

[0034] In some embodiments, the main housing 11 is provided with a plurality of heat dissipation teeth 114 on the bottom wall of the second cavity 102, and the plurality of heat dissipation teeth 114 are located in the heat dissipation channel 113. One end of the heat dissipation teeth 114 is fixed to the bottom of the heat dissipation groove 1123 of the housing 1121. The heat dissipation teeth 114 increase the heat exchange area between the heat dissipation medium and the electronic control device 1000, thereby improving the heat dissipation efficiency.

[0035] In some embodiments, please refer to Figure 3 and Figure 6 The outer casing 1 also includes a mounting member 13, which is disposed on the outer side wall of the second cavity 102 of the main casing 11 and located on the side wall of the lower casing 112. The mounting member 13 is used to connect with the outside world to connect the outer casing 1 to the outside world. The mounting member 13 is located on the side wall of the outer casing 1, thereby realizing the side mounting of the electronic control device 1000. Compared with the bottom of the electronic control device 1000 being mounted to the outside world, the side mounting not only reduces the stress on the bottom of the electronic control device 1000 and reduces the risk of deformation or damage to the outer casing 1 due to long-term load, but also helps to disperse stress and reduce the risk of stress concentration compared with the bottom edge corner of the outer casing 1 being mounted to the outside world.

[0036] In some embodiments, the mounting member 13 is disposed on the outer side wall of the main housing 11 in the first cavity 101, and the mounting member 13 is located on the side wall of the upper housing 111 to adapt to different installation environments and requirements.

[0037] In some embodiments, the mounting component 13 includes a plurality of mounting posts 131 and connecting portions 132. A connecting portion 132 is provided between any two mounting posts 131 to enhance the overall structural strength and stability of the mounting component 13. The mounting posts 131 are provided with mounting holes 1310 for fasteners to pass through, thereby securing the electronic control device 1000 to the outside. In some examples, the fasteners are screws. The plurality of mounting posts 131 respectively engage with a plurality of screws, thereby forming multiple stress points and further reducing the risk of stress concentration.

[0038] In some embodiments, the electronic control device 1000 further includes an insulating plate 5, which is disposed on the side of the partition 12 facing the second cavity 102. The insulating plate 5 is used to enhance the electrical isolation between the first cavity 101 and the second cavity 102 and improve the safety of the components operating in the first cavity 101 and the second cavity 102.

[0039] For the aforementioned power distribution component 2, please refer to some embodiments. Figure 2 , Figure 7 and Figure 8 The power distribution assembly 2 is disposed in the first cavity 101 and includes a battery adapter 21 and multiple function adapters 22. The battery adapter 21 and multiple function adapters 22 are disposed on the side wall of the main housing 11 in the first cavity 101. The multiple function adapters 22 are electrically connected to the battery adapter 21. The battery adapter 21 is used for electrical connection with an external battery, and the function adapters 22 are used for electrical connection with functional devices, thereby realizing power transmission between the external battery and the functional devices through the battery adapter 21 and the function adapters 22.

[0040] In some embodiments, the multiple functional adapters 22 are respectively configured as a heating adapter 221, an upper body adapter 222, and a fast charging adapter 223. The heating adapter 221 is used for electrical connection to a heating device or heating system, the upper body adapter 222 is used for electrical connection to an automotive upper body device or system, and the fast charging adapter 223 is used for electrical connection to an external fast charging power supply.

[0041] In some embodiments, the power distribution assembly 2 further includes a fast charging positive relay 23 and a fast charging negative relay 24, both of which are connected to the fast charging adapter 223 and are used to control the on / off state of the fast charging process.

[0042] Regarding the charging component 3 described above, please refer to [link / reference] in some embodiments. Figure 2 , Figure 7 and Figure 8The charging assembly 3 includes a charging circuit board 31 and a power device 32. The charging circuit board 31 is disposed in the first cavity 101, and the power device 32 is disposed in the second cavity 102. The power device 32 is a component that generates significant heat. By placing the charging circuit board 31 and the power device 32 in different spaces, not only is the space utilization rate improved, but the heat dissipation management performance of the device is also enhanced, reducing the risk that the high temperature generated by the power device 32 will adversely affect the precision electronic components on the charging circuit board 31. Furthermore, the bottom of the second cavity 102 is provided with a heat dissipation channel 113 and heat dissipation fins 114, and placing the power device 32 in the second cavity 102 helps to improve heat dissipation efficiency.

[0043] In some embodiments, the projection of the power device 32 at least partially overlaps with the heat dissipation channel 113 along the thickness direction of the partition 12, further enhancing the heat dissipation effect.

[0044] In some embodiments, the power device 32 abuts against the bottom wall of the main housing 11 in the second cavity 102. In other embodiments, a thermally conductive medium is filled between the power device 32 and the bottom wall of the main housing 11 in the second cavity 102.

[0045] In some embodiments, the charging circuit board 31 includes an AC circuit board 311 and a DC circuit board 312. The AC circuit board 311 and the DC circuit board 312 are electrically connected. The AC circuit board 311 is used to convert external AC power into a DC bus voltage, and the DC circuit board 312 is used to adjust the DC bus voltage to the charging parameters required by the external battery and monitor the charging status. In some examples, the AC circuit board 311 is provided with a filter module, a rectifier bridge, and a power factor correction circuit, etc., while the DC circuit board 312 is provided with a charging DC voltage conversion module and a charging control logic circuit, etc.

[0046] In some embodiments, the power distribution assembly 2 further includes a circuit breaker 25, which is disposed on the DC circuit board 312 and is used for overload protection and short circuit protection.

[0047] In some embodiments, the charging assembly 3 further includes a charging adapter 33, which is disposed on the side wall of the main housing 11 in the first cavity 101 and is used for electrical connection with an external charging power source.

[0048] In some embodiments, the charging adapter 33 is a slow charging adapter. The electronic control device 1000 performs slow charging of the external battery through the charging component 3 and the external battery adapter 21, and performs fast charging of the external battery through the fast charging adapter 223 in the power distribution component 2 and the external battery adapter 21.

[0049] In some embodiments, an external battery refers to the power battery of an electric vehicle.

[0050] In other embodiments, the electronic control device 1000 does not include a fast charging adapter 223, but only performs slow charging of the external battery through the charging component 3 and the external battery adapter 21.

[0051] In some other embodiments, the electronic control device 1000 does not include a fast charging adapter 223. The electronic control device 1000 also includes a fast and slow charging management circuit, which performs fast charging and slow charging on the external battery through the same charging adapter 33 and the fast and slow charging management circuit.

[0052] In some embodiments, the charging assembly 3 further includes a PFC (Power Factor Correction) transformer and an LLC (Inductor-Inductor-Capacitor) resonant transformer, with the PFC transformer 34 and LLC resonant transformer 35 disposed in the second cavity 102. The PFC transformer 34 is used to improve the power factor of the input power supply and reduce harmonic interference. The LLC resonant transformer 35 is used to reduce circuit switching losses.

[0053] In some embodiments, the charging component 3 further includes a common-mode inductor 36, which is disposed in the second cavity 102 and serves as a filter.

[0054] For the voltage conversion component 4 described above, please refer to [link to relevant documentation] in some embodiments. Figure 2 , Figure 7 and Figure 8 The voltage conversion component 4 includes a DC transformer 41, which is disposed in the second cavity 102. The DC transformer 41 is used to convert the high voltage DC power provided by the external battery into low voltage DC power to power low voltage electrical appliances.

[0055] In some embodiments, the voltage conversion component 4 further includes a filter inductor 42 disposed in the second cavity 102.

[0056] In some embodiments, please refer to Figure 2 , Figure 7 and Figure 8 The electronic control device 1000 also includes a power circuit board 6, which is disposed in the second cavity 102 and connected to the voltage conversion component 4 and the charging component 3. The power device 32 of the charging component 3 is disposed on the power circuit board 6.

[0057] It is understood that in some embodiments, the power distribution component 2 and / or voltage conversion component 4 are also provided with power devices, which are integrated into the power circuit board 6 to improve the space utilization of the electronic control device 1000.

[0058] In some embodiments, the electronic control device 1000 further includes a control circuit board 7 disposed in the second cavity 102, and electrically connected to the power circuit board 6, the power distribution assembly 2, the charging assembly 3, and the voltage conversion assembly 4. The control circuit board 7 is provided with control circuitry for regulating and detecting the operation of each component and assembly.

[0059] In some embodiments, the partition 12, the control circuit board 7, and the power circuit board 6 are arranged sequentially along the thickness direction of the partition 12.

[0060] When the charging adapter 33 is electrically connected to an external charging power supply, the external charging power supply inputs high-voltage AC power. The high-voltage AC power passes through the AC circuit board 311, is filtered and regulated, and then converted into DC bus voltage. Next, it is transmitted to the control circuit board 7 and power circuit board 6 in the second cavity 102. After further processing and conversion, it passes through the DC circuit board 312 and reaches the external battery from the external battery adapter 21 to charge the external battery.

[0061] In some embodiments, the electronic control device 1000 also has an inverter discharge function. Specifically, the external battery outputs DC power through the external battery adapter 21, which is then transmitted to the control circuit board 7 and the power circuit board 6 after passing through the DC circuit board 312. The DC power is converted into AC power, and then reaches the inverter adapter 37 for output after passing through the AC circuit board 311, so as to discharge and supply power to external devices and improve the practicality of the electronic control device 1000.

[0062] It is understood that in some embodiments, along the thickness direction of the partition 12, the heat dissipation channel 113 is correspondingly arranged with devices such as the PFC transformer 34, LLC resonant transformer 35, DC transformer 41, power device 32, common mode inductor 36 and filter inductor 42 located in the second cavity 102, so as to improve heat dissipation efficiency.

[0063] In this embodiment, the electronic control device 1000 integrates the power distribution component 2, the charging component 3, and the voltage conversion component 4 into the same housing 1, and divides the interior of the housing 1 into a first cavity 101 and a second cavity 102 by a partition 12, achieving a high degree of integration and effective isolation of functional modules. This not only reduces the space occupied inside the electric vehicle but also simplifies the electrical connections between components and improves the overall reliability of the system.

[0064] This application also provides an embodiment of an electric vehicle, which includes the above-described electronic control device 1000. The structure and function of the electronic control device 1000 can be found in the above embodiments, and will not be described in detail here.

[0065] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An electronic control device, characterized in that, include: The outer casing includes a main casing, a partition, and a mounting component. The main casing has a receiving cavity, and the partition is disposed in the receiving cavity, dividing the receiving cavity into a first cavity and a second cavity. The mounting component is disposed on the outer wall of the main casing at the first cavity and / or the second cavity, and the mounting component is used to connect with the outside world to connect the outer casing to the outside world. The power distribution components are disposed in the first cavity; A charging component is at least partially disposed in the second cavity, and the charging component is electrically connected to the power distribution component; A voltage conversion component is disposed in the second cavity, and the voltage conversion component is electrically connected to the power distribution component and the charging component.

2. The electronic control device according to claim 1, characterized in that, The power distribution assembly includes an external battery adapter and multiple functional adapters. The external battery adapter and the multiple functional adapters are disposed on the side wall of the main housing in the first cavity. The multiple functional adapters are electrically connected to the external battery adapter, and the external battery adapter is used to electrically connect to an external battery.

3. The electronic control device according to claim 1, characterized in that... , The charging assembly includes a charging circuit board and a power device, with the charging circuit board disposed in the first cavity and the power device disposed in the second cavity.

4. The electronic control device according to claim 3, characterized in that... , The main housing has a heat dissipation channel on the bottom wall of the second cavity, which is used for the flow of heat dissipation medium.

5. The electronic control device according to claim 4, characterized in that, The main housing has multiple heat dissipation teeth on the bottom wall of the second cavity, and the multiple heat dissipation teeth are located in the heat dissipation channel.

6. The electronic control device according to any one of claims 1-5, characterized in that, The electrical control device also includes an insulating plate, which is disposed on the side of the partition facing the second cavity.

7. The electronic control device according to any one of claims 1-5, characterized in that, The mounting component includes multiple mounting posts and connecting parts, with the connecting part provided between any two mounting posts, and the mounting posts having mounting holes.

8. The electronic control device according to claim 1, characterized in that, The electronic control device further includes a control circuit board disposed in the second cavity, and the control circuit board is electrically connected to the power distribution component, the charging component and the voltage conversion component.

9. An electric vehicle, characterized in that, Includes the electronic control device as described in any one of claims 1-8.

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