Box body, controller, electric assembly and vehicle

Abstract

The utility model discloses a box body, a controller, an electric assembly and a vehicle, the box body comprises a side wall, a groove is formed in the inner side face of the side wall, a mounting hole penetrating through the side wall is formed in the groove bottom of the groove, and the mounting hole is used for mounting a connector. According to the box body, the controller, the electric assembly and the vehicle, the size and the weight of the box body can be reduced on the premise that the safety requirement is met.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and more particularly to a box, a controller, an electric assembly and a vehicle. Background Art

[0002] At present, the box on the vehicle is usually provided with a mounting hole for installing the connector, and the connector is connected to the electronic device inside the box through the mounting hole. According to the electrical safety distance design requirements, a specific distance needs to be maintained between the connection between the connector and the electronic device and the box. In order to meet the electrical safety distance design requirements, the existing box is usually achieved by increasing the volume of the box, resulting in an increase in the space occupied by the box, an increase in weight, and an increase in cost.

[0003] Therefore, improvements are needed to at least partially solve the above problems. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above-mentioned problem, according to the first aspect of the utility model, a box body is provided, which includes a side wall, the inner side surface of the side wall is provided with a groove, the bottom of the groove has a mounting hole passing through the side wall, and the mounting hole is used to install a connector.

[0006] Exemplarily, a first boss is provided on the outer side surface of the side wall, the first boss is provided at the periphery of the mounting hole, and the first boss has at least one fixing hole, and the fixing hole is used for a fixing member to pass through to fix the connector.

[0007] Exemplarily, the first boss is disposed around the mounting hole.

[0008] Exemplarily, the inner side surface of the side wall has a second boss at a position corresponding to the fixing hole.

[0009] Exemplarily, the second boss is in the shape of an elongated strip, and each second boss corresponds to two of the fixing holes.

[0010] According to a second aspect of the present invention, there is provided a controller, comprising:

[0011] A box as described above;

[0012] A connector, part of which is inserted into the mounting hole.

[0013] Exemplarily, the controller further includes a charging control component, which is located inside the housing and electrically connected to the connector.

[0014] Exemplarily, the connector includes a first connector and a second connector, the first connector includes a first positive electrode connection terminal and a first negative electrode connection terminal, the second connector includes a second positive electrode connection terminal and a second negative electrode connection terminal, wherein the first connector is used to connect a charging gun, and the second connector is used to connect a battery pack;

[0015] The charging control component includes a first relay and a second relay, wherein the first end of the first relay is electrically connected to the first positive connection end, the second end of the first relay is electrically connected to the second positive connection end, the first end of the second relay is electrically connected to the first negative connection end, and the second end of the second relay is electrically connected to the second negative connection end.

[0016] Exemplarily, the charging control component further includes a boost component, and the boost component is arranged on a first circuit formed by the first connector, the first relay, the second connector and the second relay.

[0017] Exemplarily, the charging control component further includes a third relay, a first end of the third relay is electrically connected to the first positive electrode connection end, and a second end of the third relay is electrically connected to the second positive electrode connection end;

[0018] The first connector, the third relay, the second connector, and the second relay form a second circuit that is different from the first circuit.

[0019] Exemplarily, the first relay, the second relay and the third relay are arranged in parallel, and the third relay is located between the first relay and the second relay.

[0020] Exemplarily, the inner side surface of the side wall is provided with a first groove and a second groove, the groove bottom of the first groove and the groove bottom of the second groove respectively have a first mounting hole and a second mounting hole penetrating the side wall, a part of the first connector is inserted into the first mounting hole, and a part of the second connector is inserted into the second mounting hole;

[0021] The first relay, the second relay, and the third relay are all adjacent to the first mounting hole.

[0022] Exemplarily, the controller further includes a circuit board, on which a first signal connection terminal is provided;

[0023] A second signal connection terminal, a third signal connection terminal and a fourth signal connection terminal are respectively provided on the same side of the first relay, the second relay and the third relay, and the second signal connection terminal, the third signal connection terminal and the fourth signal connection terminal are all electrically connected to the first signal connection terminal through a connecting wiring harness.

[0024] According to a third aspect of the present invention, an electric assembly is provided, which includes the controller as described above.

[0025] According to a fourth aspect of the utility model, a vehicle is provided, which includes the electric assembly as described above.

[0026] According to the box, controller, electric assembly and vehicle of the utility model, by setting a groove on the inner side of the side wall at the position corresponding to the mounting hole, the electrical safety distance design requirements can be effectively met without increasing the volume of the box, thereby effectively reducing the space occupied by the box, reducing the weight of the box and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following drawings of the present application are hereby used as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the device and principle of the present application. In the drawings,

[0028] Figure 1 is a schematic diagram of a three-dimensional structure of a controller according to an embodiment of the present application;

[0029] Figure 2 for Figure 1 A schematic top view of a first connector, a second connector and a portion of a bottom shell;

[0030] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of a part of the bottom shell;

[0031] Figure 4 for Figure 2 A schematic diagram of a three-dimensional structure of a portion of the bottom shell at another angle;

[0032] Figure 5 for Figure 2 Schematic cross-sectional view of the AA section;

[0033] Figure 6 for Figure 1 Schematic diagram of circuit topology of the controller in FIG.

[0034] Figure 7 for Figure 1 A schematic diagram of a portion of the structure of a charging control component in a controller;

[0035] Figure 8 for Figure 1 Exploded diagram of the controller in Figure 1. DETAILED DESCRIPTION

[0036] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0037] It should be understood that the present application can be implemented in different forms and should not be construed as being limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and fully convey the scope of the present application to those skilled in the art. In the accompanying drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity. The same reference numerals throughout represent the same elements.

[0038] It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as a second element, component, region, layer or part.

[0039] Spatially relative terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein for convenience of description to describe the relationship of one element or feature to other elements or features shown in the figures. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation shown in the figures.

[0040] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0041] Embodiments of the utility model are described herein with reference to cross-sectional views as schematic diagrams of ideal embodiments (and intermediate structures) of the present application. In this way, variations in the shapes shown due to, for example, manufacturing techniques and / or tolerances can be expected. Therefore, the embodiments of the present application should not be limited to the specific shapes shown herein, but include shape deviations due to, for example, manufacturing. Therefore, what is shown in the figures is schematic in nature, and their shapes are not intended to display the actual shape of the device and are not intended to limit the scope of the present application.

[0042] See attached Figure 1-8 A controller according to an embodiment of the present application is exemplarily described.

[0043] The controller of the embodiment of the present application includes a case 100, a first connector 200, a second connector 300 and a charging control assembly. The case 100 has a storage space, and the charging control assembly is located in the storage space. The case 100 has a first mounting hole 112 and a second mounting hole 116 corresponding to the first connector 200 and the second connector 300. The first mounting hole 112 and the second mounting hole 116 are both connected to the storage space and are used to install the first connector 200 and the second connector 300, respectively. Part of the first connector 200 is inserted in the first mounting hole 112, the first end of the first connector 200 is located inside the storage space and is connected to the charging control assembly, and the second end of the first connector 200 is located outside the storage space (that is, outside the case 100) and is used to connect the charging gun. Part of the second connector 300 is inserted into the second mounting hole 116, the first end of the second connector 300 is located inside the accommodation space and connected to the charging control assembly, and the second end of the second connector 300 is located outside the accommodation space (that is, outside the box 100) and is used to connect the battery pack. The charging control assembly is used to receive power from the charging gun through the first connector 200 and charge the battery pack through the second connector 300.

[0044] See attached Figure 1-5 In the embodiment of the present application, the box body 100 includes a bottom shell 110 and an upper cover 120. The bottom shell 110 includes a bottom plate and a side wall 1101 surrounding the bottom plate in a circumferential direction. The upper cover 120 is detachably connected to a side of the side wall 1101 away from the bottom plate, and there is a receiving space between the bottom shell 110 and the upper cover 120. The upper cover 120 can be detachably connected to the side wall 1101 by bolts or other suitable connectors.

[0045] The inner side surface of the side wall 1101 (i.e., the side of the side wall 1101 facing the accommodation space) is provided with a first groove 111 and a second groove 115 at positions corresponding to the first mounting hole 112 and the second mounting hole 116, respectively. The first mounting hole 112 and the second mounting hole 116 are located at the groove bottoms of the first groove 111 and the second groove 115, respectively, and the first mounting hole 112 and the second mounting hole 116 both penetrate the bottom shell 110. There is a certain interval between the circumferential edge of the first mounting hole 112 on the groove bottom of the first groove 111 and the groove wall of the first groove 111. Similarly, there is a certain interval between the circumferential edge of the second mounting hole 116 on the groove bottom of the second groove 115 and the groove wall of the second groove 115. In the embodiment of the present application, the groove wall of the first groove 111 is perpendicular to the groove bottom of the first groove 111, and the groove wall of the second groove 115 is perpendicular to the groove bottom of the second groove 115, so as to facilitate processing. There are two first mounting holes 112 and two second mounting holes 116. The first end of the first connector 200 includes a first positive electrode connection terminal 210 and a first negative electrode connection terminal 220. The first positive electrode connection terminal 210 and the first negative electrode connection terminal 220 extend into the accommodation space through the two first mounting holes 112, respectively, and are connected to the charging control component. The first end of the second connector 300 includes a second positive electrode connection terminal 310 and a second negative electrode connection terminal 320. The second positive electrode connection terminal 310 and the second negative electrode connection terminal 320 extend into the accommodation space through the two second mounting holes 116, respectively, and are connected to the charging control component. In the embodiment of the present application, the first mounting hole 112 and the second mounting hole 116 (and the corresponding first groove 111 and the second groove 115) are both located on the side wall 1101, and are located on the side wall 1101 on the same side. In some other embodiments, the inner surface of the side wall 1101 may be provided with only one groove (e.g., the first groove 111 or the second groove 115), the bottom of the groove having a mounting hole (e.g., the first mounting hole 112 and the second mounting hole 116) passing through the side wall 1101, and the mounting hole is used to install a connector (e.g., the first connector 200 or the second connector 300).

[0046] According to the design requirements of electrical safety distance (such as the requirements of UL840 electrical product safety distance), the minimum distance of the electrical gap between the load end of the connector (i.e., the connection between the connector and the charging control component) and the box 100 must be greater than a certain electrical safety distance. The means commonly used in the prior art are to increase the volume of the box 100 (increase the internal space of the box 100) and increase the length of the connector in the box 100 to make the minimum distance of the electrical gap meet the requirements, which will obviously increase the space occupied by the box 100, increase the weight, and increase the cost. By providing the first groove 111 and the second groove 115 on the side wall 1101, the present application can ensure that the minimum distance H of the electrical gap between the load end of the first connector 200 and the box 100 and the minimum distance of the electrical gap between the load end of the second connector 300 and the box 100 meet the design requirements of the electrical safety distance without increasing the volume of the box 100 and the length of the connector in the box 100, thereby effectively reducing the space occupied by the box 100, reducing the weight of the box 100, and reducing the cost.

[0047] In the embodiment of the present application, the outer side surface of the side wall 1101 is provided with a first boss 114, and the first boss 114 is provided around the first mounting hole 112. The first boss 114 has at least one first fixing hole 1141, and the first fixing hole 1141 is used for a fixing member (such as a screw, etc.) to pass through to fix the connector, so that the first plug-in component 200 is connected and fixed to the side wall 1101. The first plug-in component 200 has a connecting hole corresponding to the first fixing hole 1141. After the first plug-in component 200 is inserted into the first mounting hole 112, at least one fixing member (such as a screw, etc.) can be used to pass through the connecting hole and engage with the first fixing hole 1141 to fix the first plug-in component 200 to the side wall 1101. The provision of the first boss 114 can increase the depth of the first fixing hole 1141 to meet the connection requirements of the fixing member. In this embodiment, the first boss 114 is arranged around the first mounting hole 112, which can ensure that it can fit closely with the first connector 200 and prevent dust and water from entering the first mounting hole 112. The first fixing holes 1141 may include, for example, four, and the four fixing holes are arranged at intervals on the first boss 114, so that the first connector 200 and the side wall 1101 can be tightly connected through the four fixings.

[0048] In the embodiment of the present application, the inner side surface of the side wall 1101 has a second boss 113 at a position corresponding to the first fixing hole 1141. The second boss 113 can further increase the depth of the first fixing hole 1141 to meet the connection requirements of the fixing member. The second boss 113 can be located outside the first groove 111. In the present embodiment, the second boss 113 is in the shape of a long strip, and there are two of them, and each second boss corresponds to two first fixing holes 1141.

[0049] Similarly, the outer side surface of the side wall 1101 has a first boss 118, which is arranged around the second mounting hole 116. The first boss 118 has at least one second fixing hole 1181, and the second fixing hole 1181 is used for a fixing member to pass through to fix the second connector 300. The first boss 118 can be arranged around the second mounting hole, and there can be four second fixing holes 1181, and the four second fixing holes 114 are arranged at intervals on the first boss 118. The inner side surface of the side wall 1101 has a second boss 117 at a position corresponding to the second fixing hole 114. The second boss 117 can be in a long strip shape, and each second boss 117 corresponds to two second fixing holes 1181.

[0050] It should be noted that the box 100 of the embodiment of the present application can not only accommodate the charging control component, but also be used to accommodate other electronic devices in addition to the charging control component. Those skilled in the art can configure it as needed. When the box 100 is configured to accommodate other electronic devices, only the first mounting hole 112 and the corresponding first boss 114 and second boss 113 can be provided on the box 100 (the second mounting hole 116 and the corresponding second boss 113 and third boss 118 are not provided). The number and setting position of the mounting holes can be configured by those skilled in the art as needed.

[0051] See attached Figure 6 , 7In the embodiment of the present application, the charging control component includes a first relay 410, a second relay 420, a third relay 430 and a boost component 440. The boost component 440 is arranged on the first circuit formed by the first connector 200, the first relay 410, the second connector 300 and the second relay 420. Specifically, the first end of the first relay 410 is connected to the first positive electrode connection terminal 210 on the first connector 200, the first end of the second relay 420 is connected to the first negative electrode connection terminal 220 on the first connector 200, the second end of the second relay 420 is connected to the second negative electrode connection terminal 320 on the second connector 300, and the boost component 440 is connected to the second end of the first relay 410, the second end of the second relay 420, the second positive electrode connection terminal 310 on the second connector 300. The first end of the third relay 430 is connected to the first end of the first relay 410, that is, connected to the first positive electrode connection terminal 210 on the first connector 200, and the second end of the third relay 430 is connected to the second positive electrode connection terminal 310 on the second connector 300. The first connector 200, the third relay 430, the second connector 300 and the second relay 420 form a second circuit, which is different from the first circuit. When the power supply voltage of the charging gun is lower than the voltage of the battery pack, the first relay 410 and the second relay 420 can be controlled to be turned on, and the third relay 430 can be turned off, so that the charging gun charges the battery pack through the first circuit. At this time, the boost component 440 can receive the power supply of the charging gun through the first positive electrode connection terminal 210 and the first negative electrode connection terminal 220, and boost the power supply voltage of the charging gun, and then provide the boosted voltage to the battery pack through the second positive electrode connection terminal 310 and the second negative electrode connection terminal 320, so as to achieve efficient and fast charging. When the power supply voltage of the charging gun is greater than or equal to the voltage of the battery pack, the first relay 410 can be controlled to be disconnected, and the second relay 420 and the third relay 430 can be turned on, so that the charging gun can charge the battery pack through the second circuit. At this time, the power supply voltage of the charging gun can be directly provided to the battery pack through the second relay 420 and the third relay 430 without passing through the boost component 440, thereby effectively reducing charging losses.

[0052] In some other embodiments, the charging control component may include a first relay 410 and a second relay 420, wherein a first end of the first relay 410 is electrically connected to the first positive electrode connection terminal 210, a second end of the first relay 410 is electrically connected to the second positive electrode connection terminal 310, a first end of the second relay 420 is electrically connected to the first negative electrode connection terminal 220, and a second end of the second relay 420 is electrically connected to the second negative electrode connection terminal 320. When the power supply voltage of the charging gun is greater than or equal to the voltage of the battery pack, the first relay 410 and the second relay 420 may be controlled to be turned on to charge the battery pack through the charging gun.

[0053] In some other embodiments, the charging control component may include a first relay 410, a second relay 420 and a boost component, and the boost component 440 is provided on the loop formed by the first connector 200, the first relay 410, the second connector 300 and the second relay 420. Specifically, the first end of the first relay 410 is connected to the first positive electrode connection terminal 210 on the first connector 200, the first end of the second relay 420 is connected to the first negative electrode connection terminal 220 on the first connector 200, the second end of the second relay 420 is connected to the second negative electrode connection terminal 320 on the second connector 300, and the boost component 440 is connected to the second end of the first relay 410, the second end of the second relay 420, the second positive electrode connection terminal 310 on the second connector 300. When the power supply voltage of the charging gun is lower than the voltage of the battery pack, the first relay 410 and the second relay 420 can be controlled to be turned on. At this time, the boost component 440 can receive the power supply of the charging gun through the first positive connection terminal 210 and the first negative connection terminal 220, and boost the power supply voltage of the charging gun, and then provide the boosted voltage to the battery pack through the second positive connection terminal 310 and the second negative connection terminal 320 to achieve efficient and fast charging.

[0054] In the embodiment of the present application, the boost component 440 includes a boost capacitor 441, a boost inductor 442 and a power module 443, and the power module 443 includes an upper bridge and a lower bridge. The two ends of the boost capacitor 441 are respectively connected to the second end of the first relay 410 and the second end of the second relay 420, the first end of the boost inductor 442 is connected to the second end of the first relay 410, the second end of the boost inductor 441 is connected to the first end of the upper bridge of the power module 443, and the second end of the boost inductor 441 is connected to the first end of the lower bridge of the power module 443, the second end of the upper bridge of the power module 443 is connected to the second positive electrode connection terminal 310, and the second end of the lower bridge of the power module 443 is connected to the second negative electrode connection terminal 320. The boost can be completed by controlling the switching frequency of the upper and lower bridges of the power module 443, and the voltage can be adjusted by controlling the size of the duty cycle.

[0055] In the embodiment of the present application, the charging control component further includes an inlet filter component 450 and an outlet filter component 460. The inlet filter component 450 includes a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4 and a magnetic ring 451, the first end of the capacitor C1 is connected to the second end of the first relay 410, the second end of the capacitor C1 is connected to the first end of the capacitor C2, the second end of the capacitor C2 is connected to the second end of the second relay 420, the first end of the capacitor C3 is connected to the second end of the first relay 410, the second end of the capacitor C3 is connected to the first end of the capacitor C4 and the ground, the second end of the capacitor C4 is connected to the second end of the second relay 420, and the magnetic ring 451 is sleeved on the connection line between the boost component 440 and the second end of the first relay 410 and the second end of the second relay 420. The outlet filter component 450 includes capacitors C5, C6, and C7. The two ends of capacitor C5 are connected to the second positive connection terminal 310 and the second negative connection terminal 320 respectively. The first end of capacitor C6 is connected to the second positive connection terminal 310. The second end of capacitor C6 is connected to the first end of capacitor C7 and the ground. The second end of capacitor C7 is connected to the second negative connection terminal 320.

[0056] In the embodiment of the present application, the charging control component further includes a smoothing capacitor 473 and a filter inductor 474, the two ends of the smoothing capacitor 473 are respectively connected to the second end of the upper bridge of the power module 443 and the second end of the lower bridge of the power module 443, the first end of the filter inductor 474 is connected to the second end of the upper bridge of the power module 443, and the second end of the filter inductor 474 is connected to the second end of the third relay 430 and the second positive connection terminal 310. The smoothing capacitor 473 and the filter inductor 474 constitute an RC filter circuit for filtering.

[0057] In the embodiment of the present application, the charging control component also includes a magnetic ring 471 and a magnetic ring 476. The magnetic ring 471 is set on the connection line between the first positive connection terminal 210 and the first end of the first relay 410 and the connection line between the first negative connection terminal 220 and the first end of the second relay 420 for filtering. The magnetic ring 476 is set on the connection line between the second positive connection terminal 310 and the outlet filter component 460 and the connection line between the second negative connection terminal 320 and the outlet filter component 460 for filtering. In the embodiment of the present application, the charging control component also includes a first current detection sensor 472 (the first current detection sensor 472 can be a Hall current sensor or other suitable current detection sensor) and a second current detection sensor 475 (the second current detection sensor 475 can be a Hall current sensor or other suitable current detection sensor), the inlet current Hall sensor is used to collect the current on the connection line between the first positive connection terminal 210 and the first end of the first relay 410, and the second current detection sensor 475 is used to collect the current on the connection line between the filter inductor 474 and the second positive connection terminal 310. In the embodiment of the present application, a voltage sampling point 477, a voltage sampling point 478, a voltage sampling point 479, a voltage sampling point 480, and a voltage sampling point 481 are respectively provided on the connection line between the first positive connection terminal 210 and the first end of the first relay 410, the connection line between the first negative connection terminal 220 and the first end of the second relay 420, the connection line between the second end of the first relay 410 and the boost inductor 442, the connection line between the second end of the upper bridge of the power module 443 and the filter inductor 474, and the connection line between the second end of the lower bridge of the power module 443 and the second negative connection terminal 320.

[0058] See attached Figure 7In the embodiment of the present application, the first relay 410, the second relay 420 and the third relay 430 are arranged in parallel, and the third relay 430 is located between the first relay 410 and the second relay 420. The first positive electrode connection terminal 210 is connected to the first end of the first relay 410 through the copper bar 482, and the second end of the first relay 410 is connected to the first end of the boost inductor 442 through the copper bar 483 and the copper bar 484, and the copper bar 483 and the copper bar 484 are connected to the inlet filter component 450 and the boost capacitor 441. The inlet filter component 450 and the boost capacitor 441 can be integrated into one piece to save space and facilitate assembly. The second positive electrode connection terminal 310 is connected to the first end of the second relay 420 through the copper bar 487, and the second end of the second relay 420 is connected to the second negative electrode connection terminal 320 through the copper bar 488, the copper bar 489 and the copper bar 490. The inlet filter component 450 and the boost capacitor 441 are connected between the copper bar 488 and the copper bar 489, and the outlet filter component 460 is connected between the copper bar 489 and the copper bar 490. The copper bar 489 is also connected to the smoothing capacitor 473 ( Figure 7 The power module 443 ( Figure 7 486. The first end of the upper bridge of the power module 443 (not shown) and the first end of the lower bridge of the power module 443 are connected to the first end of the boost inductor 442 through a copper bar, and the second end of the upper bridge of the power module 443 and the second end of the lower bridge of the power module 443 are respectively connected to the first end and the copper bar 489 of the filter inductor 474 through a smoothing capacitor 473. The second end of the filter inductor 474 is connected to the second positive electrode connection terminal 310 through a copper bar 485 and a copper bar 486. The outlet filter assembly 460 is connected between the copper bar 485 and the copper bar 486. The first end of the first relay 410 is also connected to the first end of the 3rd relay 430 through a copper bar 491, and the second end of the 3rd relay 430 is connected to the second end of the filter inductor 474 through a copper bar 492. Copper bar 482 and copper bar 487 are arranged in the magnetic ring 471, and copper bar 486 and copper bar 490 are arranged in the magnetic ring 476. The copper bar 482 and the copper bar 485 are also respectively inserted into the first current detection sensor 472 and the second current detection sensor 475. In the embodiment of the present application, the first relay 410, the second relay 420 and the third relay 430 are arranged in parallel, and the third relay 430 is arranged between the first relay 410 and the second relay 420, so that the structure can be more compact and the length of the copper bar 491 between the first relay 410 and the third relay 430 can be significantly shortened, thereby reducing the loss during the charging process and reducing the cost.

[0059] In the embodiment of the present application, the first relay 410, the second relay 420 and the third relay 430 are all adjacent to the first connector 200. Thus, the length of the copper bar 482 between the first relay 410 and the first positive electrode connection terminal 210 and the length of the copper bar 487 between the second relay 420 and the first negative electrode connection terminal 220 can be significantly shortened, thereby significantly reducing the loss during the charging process and reducing the cost.

[0060] In the embodiment of the present application, the controller further includes a circuit board 501, on which a first signal connection terminal is disposed. A second signal connection terminal, a third signal connection terminal, and a fourth signal connection terminal are respectively disposed on the same side of the first relay 410, the second relay 420, and the third relay 430, and the second signal connection terminal, the third signal connection terminal, and the fourth signal connection terminal are all electrically connected to the first signal connection terminal through a connecting harness, so that the circuit board 501 can control the conduction and disconnection of the first relay 410, the second relay 420, and the third relay 430 through a control harness. Specifically, the second signal connection terminal of the first relay 410 is located on the side of the first relay 410 facing the first connector 200 (i.e., Figure 7 The third signal connection terminal of the second relay 420 is located on the side of the second relay 42 facing the first connector 200 (i.e. Figure 7 The second signal connection terminal of the third relay 430 is located on the side of the third relay 430 facing the first connector 200 (i.e. Figure 7 ). Since the first relay 410, the second relay 420 and the third relay 430 are arranged in parallel, and the signal connection terminals of the three are located on the same side, the control harness can be conveniently connected during assembly, saving assembly time, and the control harnesses of the three can be uniformly fixed, saving the space occupied by the control harnesses.

[0061] See attached Figure 7 , 8The assembly process of the controller is illustrated. As can be seen from the figure, since the boost inductor 442 is installed without a shell, the boost inductor 442 needs to be assembled on the bottom shell 110 first. The boost inductor 442 is first fixed with bolts and then fixed with potting glue. The potting glue can better conduct heat and fix. After the boost inductor 442 is installed, the first connector 200 and the second connector 300 are installed, and then the magnetic ring 571, the first relay 410, the second relay 420, the third relay 430, the inlet filter component 450, the smoothing capacitor 473, the filter inductor 474 and the boost inductor 442 are installed on the box body. After the power module sealing ring 506 is loaded into the sealing ring groove on the bottom shell, the power module 443 is placed on the bottom shell 110, and then the pressing block 504 is pressed on the power module 443 and fixed with bolts, and the power module driving board 502 is installed above the power module 443, and the input terminal of the power module 443 and the boost inductor 442 are connected and fixed by the copper bar 507, and the output terminal of the power module 443 is fixed with bolts at the input end of the smoothing capacitor 473. After the magnetic ring 476 and the outlet filter assembly 450 are placed, the copper bar 486, the copper bar 490 and the second connector 300 are fixed with bolts, and then the magnetic ring 476 and the outlet filter assembly 450 are fixed. The filter inductor 474 is assembled together with the copper bar 485 and the second current detection sensor 475, and the second connector 200 is assembled together with the copper bar 482 and the first current detection sensor 472. Then after copper bar 489 and copper bar 492 are placed, the temperature sampling line of second current detection sensor 475, first current detection sensor 472, first relay 410, second relay 420, third relay 430 and inductance is connected, the connector docked with control board 501 is put aside first, and other copper bars are installed to avoid the subsequent installation of copper bars and the wiring harness cannot be connected. The copper bar 485 that has been assembled with the second current detection sensor 475 is installed, and then the other end of copper bar 492 and the output end of the third relay 430 are fixed, one end of copper bar 485 and copper bar 486 are bolted at the outlet filter assembly 450, and the other end of copper bar 485 and copper bar 492 are bolted at the output end of filter inductor 474, and the input end of filter inductor 474 and the positive output end of smoothing capacitor 473 are fixed. One end of copper bar 487 and the first negative pole connection end 220 of the first connector 200 are bolted, and the other end of copper bar 487 and the second relay 420 are bolted. One end of the copper bar 482 is fixed to the positive terminal of the first connector 200 with bolts, and the other end of the copper bar 482 needs to be fixed to the input end of the first relay 410 together with the copper bar 491, and the other end of the copper bar 491 is fixed to the third relay 430. The output end of the first relay 410 is connected to one end of the copper bar 483, and the other end of the copper bar 483 is connected to the input end of the inlet filter assembly 450. The copper bar 484 is connected and fixed at the output end of the inlet filter assembly 450.The output end of the third relay 430 is connected and fixed with a copper bar 488, and the other end of the copper bar 488 is connected to the input end of the inlet filter assembly 450, and the copper bar 489 is connected and fixed at the output end of the inlet filter assembly 450. The other fixed end of the copper bar 489 is connected and fixed to the output negative terminal of the smoothing capacitor 473. Then, the high-voltage sampling line on the copper bar 489, i.e., the high-voltage sampling point 481, is installed, then the shielding plate 503 is installed, the low-voltage connector 508 is installed, and then the circuit board 501 is installed. After the circuit board 501 is installed, the plug-in connected to the circuit board 501 is installed, and then the other 4 high-voltage sampling harnesses, i.e., the voltage sampling point 477, the voltage sampling point 478, the voltage sampling point 479, and the voltage sampling point 480 are installed, respectively on the output positive terminal of the copper bar 482, the copper bar 487, the copper bar 484, and the smoothing capacitor 473, and finally the upper cover 120 is installed, and the whole controller is assembled.

[0062] See attached Figure 6 , 7When the supply voltage of the charging gun is lower than the voltage of the battery pack, the first relay 410 and the second relay 420 are controlled to be turned on, and the third relay 430 is disconnected, and the switching frequency of the upper and lower bridges of the power module 443 is controlled to boost. When the lower bridge of the power module 443 is turned on (on) and the upper bridge is turned off (off), the positive current from the first positive connection terminal 210 flows into the power module 443 after passing through the copper bus 482 (that is, through the magnetic ring 471 and the first current detection sensor 472), the first relay 410, the copper bus 483, the copper bus 484 (that is, through the inlet filter component 450 and the boost capacitor 441) and the boost inductor 442. When the current passes through the power module 443, since the lower bridge of the power module 443 is turned on at this time, the current flows out from the second end of the lower bridge of the power module 443 and reaches the boost capacitor 441. The current is filtered by the inlet filter component 450 and the second relay 420 and returns to the first negative connection terminal 220. At this time, the current boost energy storage is completed. When the upper bridge of the power module 443 is opened and the lower bridge is closed, the positive current from the first positive connection terminal 210 passes through the copper bus 482 (that is, through the magnetic ring 471 and the first current detection sensor 472), the first relay 410, the copper bus 483, and the copper bus 484 (that is, through the inlet filter component 450 and the boost capacitor 441) in sequence, and enters the boost inductor 442 for boosting. When the boosted current passes through the power module 443, since the upper bridge of the power module 443 is opened at this time, the current flows from the second end of the upper bridge of the power module 443 through the first end of the smoothing capacitor 473, through the filter inductor 474 for stabilizing the current, and then passes through the copper bus 485 and the copper bus 486 (that is, after passing through the second current detection sensor 475, the outlet filter component 460 and the magnetic ring 476) through the second positive connection terminal 310 to enter the battery pack to charge the battery pack. In this way, the voltage can achieve high-power boost charging after passing through the boost inductor 442, and the entire charging inlet and charging outlet are both filtered through the second level of capacitors and magnetic rings, which is beneficial to improving EMC.

[0063] When the supply voltage of the charging gun is greater than or equal to the voltage of the battery pack, the first relay 410 is controlled to be disconnected, and the second relay 420 and the third relay 430 are turned on. At this time, the positive current from the first positive connection terminal 210 passes through the copper bus 482 (that is, through the magnetic ring 471 and the first current detection sensor 472), copper bus 491, the third relay 430, copper bus 492, copper bus 485 (that is, through the second current detection sensor 475 and the outlet filter component 460) and copper bus 486 (that is, through the magnetic ring 476) in sequence, and then enters the battery pack through the second positive connection terminal 310 to charge the battery pack. At this time, the boost component 440 does not need to boost the voltage, which can reduce charging losses.

[0064] An embodiment of the present application also provides an electric assembly, which includes the controller as described above.

[0065] An embodiment of the present application also provides a vehicle, which includes the electric assembly as described above.

[0066] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. Those of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0067] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0068] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various utility model aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features explicitly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features that are less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0069] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0070] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0071] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. A box (100), characterized in that: The box body (100) comprises a side wall (1101), the inner side surface of the side wall (1101) is provided with a groove (111, 115), the bottom of the groove (111, 115) has a mounting hole (112, 116) penetrating the side wall (1101), and the mounting hole (112, 116) is used to install a connector (200, 300).

2. The box (100) according to claim 1, characterized in that: The outer side surface of the side wall (1101) is provided with a first boss (114, 118), the first boss (114, 118) is arranged around the mounting hole (112, 116), and the first boss (114, 118) has at least one fixing hole (1141, 1181), and the fixing hole (1141, 1181) is used for a fixing member to pass through to fix the connector (200, 300).

3. The box (100) according to claim 2, characterized in that: The first bosses (114, 118) are arranged around the mounting holes (112, 116).

4. The box (100) according to claim 2, characterized in that: The inner side surface of the side wall (1101) has a second boss (113, 117) at a position corresponding to the fixing hole (1141, 1181).

5. The box (100) according to claim 4, characterized in that: The second bosses (113, 117) are in the shape of long strips, and each of the second bosses (113, 117) corresponds to two of the fixing holes (1141, 1181).

6. A controller, characterized in that: include: The box (100) according to any one of claims 1 to 5; A connector (200, 300), a portion of which is inserted into the mounting hole (112, 116).

7. The controller according to claim 6, characterized in that: The controller also includes a charging control component, which is located inside the box (100) and is electrically connected to the connector (200, 300).

8. The controller according to claim 7, characterized in that: The connector (200, 300) comprises a first connector (200) and a second connector (300), the first connector (200) comprising a first positive electrode connection terminal (210) and a first negative electrode connection terminal (220), the second connector (300) comprising a second positive electrode connection terminal (310) and a second negative electrode connection terminal (320), wherein the first connector (200) is used to connect a charging gun, and the second connector (300) is used to connect a battery pack; The charging control component comprises a first relay (410) and a second relay (420), wherein a first end of the first relay (410) is electrically connected to the first positive electrode connection terminal (210), a second end of the first relay (410) is electrically connected to the second positive electrode connection terminal (310), a first end of the second relay (420) is electrically connected to the first negative electrode connection terminal (220), and a second end of the second relay (420) is electrically connected to the second negative electrode connection terminal (320).

9. The controller according to claim 8, characterized in that: The charging control component also includes a boost component (440), and the boost component (440) is arranged on a first circuit formed by the first connector (200), the first relay (410), the second connector (300) and the second relay (420).

10. The controller according to claim 9, characterized in that: The charging control component further comprises a third relay (430), a first end of the third relay (430) being electrically connected to the first positive electrode connection end (210), and a second end of the third relay (430) being electrically connected to the second positive electrode connection end (310); The first connector (200), the third relay (430), the second connector (300) and the second relay (420) form a second loop, which is different from the first loop.

11. The controller according to claim 10, characterized in that: The first relay (410), the second relay (420) and the third relay (430) are arranged in parallel, and the third relay (430) is located between the first relay (410) and the second relay (420).

12. The controller according to claim 10, characterized in that: The first relay (410), the second relay (420) and the third relay (430) are all arranged adjacent to the first connector (200).

13. The controller according to claim 12, characterized in that: The controller further comprises a circuit board, on which a first signal connection terminal is arranged; A second signal connection terminal, a third signal connection terminal and a fourth signal connection terminal are respectively provided on the same side of the first relay (410), the second relay (420) and the third relay (430), and the second signal connection terminal, the third signal connection terminal and the fourth signal connection terminal are all electrically connected to the first signal connection terminal through a connecting harness.

14. An electric assembly, characterized in that: Comprising a controller according to any one of claims 6-13.

15. A vehicle, characterized in that: Comprising an electric powertrain assembly according to claim 14.

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