Power distributor and vehicle

Abstract

The application discloses a power distribution device and a vehicle, and the power distribution device comprises a shell, a driving assembly arranged in the shell, a plurality of static contact assemblies fixed on the shell at intervals, a plurality of dynamic contact assemblies arranged at intervals in the axial direction of the driving assembly and arranged at intervals in the circumferential direction of the driving assembly, and the plurality of static contact assemblies and the plurality of dynamic contact assemblies are in one-to-one correspondence and selectively contact, and the size of the contact between each static contact assembly and the corresponding dynamic contact assembly in the circumferential direction is different. The plurality of dynamic contact assemblies are arranged at intervals in the circumferential direction of the driving assembly, so that the plurality of dynamic contact assemblies and the plurality of static contact assemblies are in one-to-one correspondence and conduct, and the driving assembly drives the plurality of dynamic contact assemblies to rotate, thereby realizing the conduction of different circuits on the power distribution device, and the power distribution device can realize the switching of different functions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution devices, in particular to a power distribution device and a vehicle. BACKGROUND

[0002] A capacitor as an energy storage element is arranged on a bus in a power distribution box structure. If the energy storage capacitor instantaneously receives high voltage from the bus, an impulse current will be generated, which is very harmful to components and motors and affects the service life. Therefore, before power is supplied to the electrical equipment, the energy storage capacitor needs to be pre-charged to avoid damage to components caused by excessive instantaneous current.

[0003] In related technologies, a high-voltage power distribution box generally includes a pre-charging relay, a main positive relay, a main negative relay, a fast-charging positive relay, and a fast-charging negative relay. Each relay is controlled by BMS to turn on and off to realize charging and discharging functions. The high-voltage power distribution box has high cost and large size, which is not suitable for mass production. Moreover, the relays in the high-voltage power distribution box need to have a working current all the time, which has high energy consumption. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a power distribution device, wherein a plurality of dynamic contact assemblies are arranged in a staggered manner in the circumferential direction of a driving assembly, and the driving assembly drives the plurality of dynamic contact assemblies to rotate, thereby realizing the conduction of different circuits on the power distribution device and switching different functions of the power distribution device.

[0005] The present application also provides a vehicle.

[0006] According to the power distribution device of the first aspect of the present application, the power distribution device comprises a housing, a driving assembly arranged in the housing, a plurality of static contact assemblies fixed on the housing at intervals, a plurality of dynamic contact assemblies arranged at intervals in the axial direction of the driving assembly, and a plurality of static contact assemblies and a plurality of dynamic contact assemblies corresponding to each other and selectively contacting each other, wherein the size of the contact between each static contact assembly and the corresponding dynamic contact assembly in the circumferential direction is different.

[0007] According to the power distribution device of the present application, the plurality of dynamic contact assemblies are arranged in a staggered manner in the circumferential direction of the driving assembly, so that the plurality of dynamic contact assemblies and the plurality of static contact assemblies are in one-to-one correspondence and conduction, and the driving assembly drives the plurality of dynamic contact assemblies to rotate, thereby realizing the conduction of different circuits on the power distribution device and switching different functions of the power distribution device.

[0008] According to some embodiments of the present application, the dynamic contact assembly comprises a cover and a first dynamic contact fixed in the cover, and part of the driving assembly passes through the cover and the first dynamic contact; the static contact assembly comprises two first static contacts, both of which are fixed to the shell and arranged on both sides of the dynamic contact assembly, and both of which are in selective contact with the first dynamic contact, and the sizes of the first static contacts of the static contact assembly in the circumferential direction are different.

[0009] According to some embodiments of the present application, the first static contact comprises a fixed part and a matching part arranged on one side of the fixed part, the fixed part is fixed to the shell, and the matching part is in selective contact with the first dynamic contact, and the sizes of the matching parts of the static contact assembly in the circumferential direction are different.

[0010] According to some embodiments of the present application, the first dynamic contact is two, and the two first dynamic contacts are arranged oppositely, and the first static contact is selectively sandwiched between the two first dynamic contacts.

[0011] According to some embodiments of the present application, the dynamic contact assembly further comprises a first elastic member, one end of the first elastic member is in abutment with the cover and the other end is in abutment with the first dynamic contact, so that the first dynamic contact and the first static contact are in abutment.

[0012] According to some embodiments of the present application, the dynamic contact assembly further comprises a first limiting member arranged on the side of the first dynamic contact away from the first elastic member.

[0013] According to some embodiments of the present application, the shell is provided with a first clamping part, the first static contact is provided with a second clamping part, the first clamping part is one of a buckle and a clamping groove, the second clamping part is the other of a buckle and a clamping groove, and the buckle and the clamping groove are in clamping fit.

[0014] According to some embodiments of the present application, the first static contact is provided with a guide inclined surface on the side in the rotation direction of the first dynamic contact.

[0015] According to some embodiments of the present application, the dynamic contact assembly further comprises a fixing member, one end of the fixing member is in limiting fit with the cover and the other end is in limiting fit with the driving assembly, so as to fix the dynamic contact assembly on the driving assembly.

[0016] According to some embodiments of the present application, the cover is provided with a first limiting part, the first movable contact is provided with a second limiting part, the first limiting part is one of a limiting post and a limiting hole, the second limiting part is the other of the limiting post and the limiting hole, and the limiting post and the limiting hole are in limiting cooperation.

[0017] According to some embodiments of the present application, the cover comprises a first cover and a second cover, the first cover is provided with a third clamping part, the second cover is provided with a fourth clamping part, the third clamping part is one of a buckle and a clamping groove, the fourth clamping part is the other of the buckle and the clamping groove, and the buckle and the clamping groove are in clamping cooperation.

[0018] According to some embodiments of the present application, the movable contact assembly comprises a second movable contact, the second movable contact is fixedly connected with the driving assembly and at least partially surrounds the driving assembly, and the second movable contact of each group of movable contact assemblies is different in size in the circumferential direction; the static contact assembly comprises two second static contacts, the two second static contacts are fixed to the shell and are arranged at a distance from each other, and the two second static contacts are in selective contact with the second movable contact.

[0019] According to some embodiments of the present application, the movable contact assembly further comprises a second elastic member, one side of the second elastic member is connected with the driving assembly and the other side is connected with the second movable contact, so that the second movable contact and the second static contact are in abutment.

[0020] According to some embodiments of the present application, the second static contact is provided with a guide arc surface on the side in the rotation direction towards the second movable contact.

[0021] According to some embodiments of the present application, each group of movable contact assemblies is arranged at a distance in the circumferential direction of the driving assembly.

[0022] According to some embodiments of the present application, the driving assembly comprises a driving member and a transmission shaft, the driving member and the transmission shaft are in transmission connection, and the movable contact assembly is fixed to the transmission shaft.

[0023] According to some embodiments of the present application, the driving assembly further comprises a speed reducer, the speed reducer comprises a plurality of gears, and the plurality of gears are in meshing with each other to reduce the rotation speed of the driving member.

[0024] According to some embodiments of the present application, the gear is provided with a gear part, the gear parts of the plurality of gears are in meshing with each other, and the driving assembly further comprises a second limiting member, one end of the second limiting member is fixed to the shell and the other end is in abutment with the gear part.

[0025] The vehicle according to the second aspect embodiment of the present application comprises the power distributor.

[0026] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and be more readily understood through consideration of the following description, taken in conjunction with the accompanying drawings, in which:

[0028] Figure 1 is a schematic view of a power distributor according to an alternative embodiment of the present application;

[0029] Figure 2 is a top view of a power distributor according to an alternative embodiment of the present application;

[0030] Figure 3 is a cross-sectional view of a power distributor according to an alternative embodiment of the present application at a first angle;

[0031] Figure 4 is a cross-sectional view of a power distributor according to an alternative embodiment of the present application at a second angle;

[0032] Figure 5 is a cross-sectional view of a power distributor according to an alternative embodiment of the present application at a third angle;

[0033] Figure 6 is a cross-sectional view of a power distributor according to an alternative embodiment of the present application at a fourth angle;

[0034] Figure 7 is a schematic view of a moving contact assembly according to an alternative embodiment of the present application;

[0035] Figure 8 is a cross-sectional view of a moving contact assembly according to an alternative embodiment of the present application;

[0036] Figure 9 is an exploded view of a moving contact assembly according to an alternative embodiment of the present application;

[0037] Figure 10 is a schematic view of a first stationary contact according to an alternative embodiment of the present application;

[0038] Figure 11 is a schematic view of a power distributor according to another alternative embodiment of the present application;

[0039] Figure 12 is a top view of a power distributor according to another alternative embodiment of the present application;

[0040] Figure 13 This is a cross-sectional view of a power distributor from a first angle according to another optional embodiment of the present invention;

[0041] Figure 14 This is a cross-sectional view of a power distributor from a second angle according to another optional embodiment of the present invention;

[0042] Figure 15 This is a cross-sectional view of the power distributor from a third angle according to another optional embodiment of the present invention;

[0043] Figure 16 This is a schematic diagram of the structure of the second static contact member and the housing member cooperating according to another optional embodiment of the present invention;

[0044] Figure 17 This is a schematic diagram of the structure of the second static contact member according to another optional embodiment of the present invention;

[0045] Figure 18 This is a schematic diagram of the structure of the second moving contact and the second elastic member cooperating according to another optional embodiment of the present invention;

[0046] Figure 19 This is a schematic diagram of the structure of the second elastic member according to another optional embodiment of the present invention.

[0047] Figure label:

[0048] 100. Power distribution unit;

[0049] 10. Housing; 11. First snap-fit ​​part;

[0050] 20. Drive assembly; 21. Drive component; 22. Drive shaft; 23. Gear; 231. Gear section; 24. Second limiting component;

[0051] 30. Static contact assembly; 31. First static contact element; 311. Fixing part; 312. Mating part; 313. Second snap-fit ​​part; 33. Guide slope; 34. Second static contact element; 36. Guide arc surface;

[0052] 40. Movable contact component; 41. Cover; 411. First cover; 412. Second cover; 413. Third latching part; 414. Fourth latching part; 415. First limiting part; 42. First movable contact member; 421. Second limiting part; 43. First elastic member; 44. First limiting member; 45. Fixing member; 46. Second movable contact member; 47. Second elastic member. Detailed Implementation

[0053] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0054] The following is for reference. Figures 1-19 The present invention describes a power distributor 100 according to an embodiment of the present invention, and also proposes a vehicle having the above-described power distributor 100.

[0055] Reference Figures 1-19 As shown, the power distribution unit 100 of this embodiment includes: a housing 10, a drive assembly 20, multiple sets of moving contact assemblies 40, and multiple sets of stationary contact assemblies 30. The drive assembly 20 is disposed within the housing 10, the multiple sets of stationary contact assemblies 30 are fixedly spaced on the housing 10, and the multiple sets of moving contact assemblies 40 are spaced apart in the axial direction of the drive assembly 20. That is, the moving contact assemblies 40 can rotate relative to the stationary contact assemblies 30. When the moving contact assemblies 40 and the corresponding stationary contact assemblies 30 are engaged, the corresponding circuit is turned on, thus realizing electrical connection. Furthermore, different circuits are formed between the multiple sets of stationary contact assemblies 30 and the multiple sets of moving contact assemblies 40, thus enabling different functions of the power distribution unit 100.

[0056] Furthermore, such as Figure 1 and Figure 11 As shown, multiple sets of static contact components 30 and multiple sets of dynamic contact components 40 correspond one-to-one and selectively contact each other. Specifically, the multiple sets of dynamic contact components 40 are divided into pre-charge dynamic contact components 40, main positive dynamic contact components 40, main negative dynamic contact components 40, fast-charge positive dynamic contact components 40, and fast-charge negative dynamic contact components 40, all of which are mounted on the drive component 20, and the aforementioned multiple sets of dynamic contact components 40 are staggered in the circumferential direction of the drive component 20. Furthermore, the multiple sets of static contact components 30 are divided into pre-charge static contact components 30, main positive static contact components 30, main negative static contact components 30, fast-charge positive static contact components 30, and fast-charge negative static contact components 30. That is, the pre-charge dynamic contact component 40 corresponds to the pre-charge static contact component 30, the main positive dynamic contact component 40 corresponds to the main positive static contact component 30, the main negative dynamic contact component 40 corresponds to the main negative static contact component 30, the fast charging positive dynamic contact component 40 corresponds to the fast charging positive static contact component 30, and the fast charging negative dynamic contact component 40 corresponds to the fast charging negative static contact component 30.

[0057] Furthermore, multiple sets of moving contact components 40 are staggered in the circumferential direction of the drive component 20. When the drive component 20 is started, due to the angular deviation between the pre-charge moving contact component 40, the main positive moving contact component 40, the main negative moving contact component 40, the fast-charge positive moving contact component 40, and the fast-charge negative moving contact component 40, they successively contact the corresponding static contact components 30, thereby realizing the functional timing of pre-charge, discharge, and charge. For example, the drive component 20 can control the pre-charge moving contact component 40 and the pre-charge static contact component 30 to connect, and then control the main positive moving contact component 40 and the main positive static contact component 30 to connect.

[0058] Furthermore, the contact dimensions of each set of stationary contact components 30 and their corresponding sets of moving contact components 40 in the circumferential direction are different. With this configuration, when the drive component 20 is started, the pre-charge moving contact component 40 first engages with the pre-charge stationary contact component 30, and the pre-charge circuit is activated to achieve the pre-charge function. The drive component 20 then rotates a certain angle, causing the main positive moving contact component 40 to engage with the main positive stationary contact component 30, and also causing the main negative moving contact component 40 to engage with the main negative stationary contact component 30. Simultaneously, through the length design of the pre-charge stationary contact component, the pre-charge moving contact component 40 separates from the pre-charge stationary contact component, achieving pre-charge disconnection. At this time, the discharge circuit is activated to achieve the discharge function. Furthermore, the drive assembly 20 continues to rotate at a certain angle, causing the fast-charging positive moving contact assembly 40 to engage with the fast-charging positive stationary contact assembly 30, and also causing the fast-charging negative moving contact assembly 40 to engage with the fast-charging negative stationary contact assembly 30. Simultaneously, through the length design of the main positive stationary contact assembly 30 and the main negative stationary contact assembly 30, the main positive moving contact assembly 40 and the main positive stationary contact remain connected, and the main negative moving contact assembly 40 and the main negative stationary contact remain connected. At this point, the charging circuit is conductive, achieving both charging and discharging functions. Finally, the drive assembly 20 rotates again at a certain angle, causing all sets of moving contact assemblies 40 and multiple stationary contact assemblies 30 to separate and return to their original positions. At this point, the power distributor 100 is completely disconnected.

[0059] Therefore, the multiple sets of moving contact components 40 are staggered in the circumferential direction of the drive component 20, so that the multiple sets of moving contact components 40 and the multiple sets of stationary contact components 30 are connected in a one-to-one correspondence. Furthermore, the drive component 21 drives the multiple sets of moving contact components 40 to rotate, thereby realizing the connection of different circuits on the power distributor 100, and the power distributor 100 can realize the switching of different functions.

[0060] And, combined Figure 2 and Figure 12 As shown, the drive assembly 20 includes a drive member 21 and a transmission shaft 22, which are connected in a driving manner. A moving contact assembly 40 is fixed to the transmission shaft 22. The drive member 21 can drive the transmission shaft 22 to rotate in the circumferential direction, and by fixing the moving contact assembly 40 to the transmission shaft 22, different moving contact assemblies 40 and their corresponding stationary contact assemblies 30 can be made conductive through the transmission between the drive member 21 and the transmission shaft 22. The drive member 21 can be a drive motor.

[0061] Reference Figure 2 , Figure 3 and Figure 12As shown, the drive assembly 20 also includes a reducer, which comprises multiple gears 23 meshing with each other to reduce the rotational speed of the drive component 21. The reducer's multiple gears 23 enable a multi-stage reduction mechanism, which increases the output torque of the drive component 21. This provides sufficient torque on the transmission shaft 22 to drive the sliding between the moving contact component 40 and the stationary contact component 30, thereby achieving the purpose of circuit switching. Furthermore, the reducer eliminates the need for additional power to the drive component 21, thus avoiding increases in its size and cost.

[0062] Among them, reference Figure 5 and Figure 15 As shown, gear 23 is provided with gear portion 231, and the gear portions 231 of multiple gears 23 mesh with each other. The drive assembly 20 also includes a second limiting member 24, one end of which is fixed to the housing 10 and the other end abuts against the gear portion 231. Thus, the second limiting member 24 is also provided on the drive assembly 20, and it abuts against the gear portion 231 of the gear 23. That is, the second limiting member 24 can limit the rotation of the gear 23, thereby preventing the drive shaft 22 from rotating when subjected to vibration. Furthermore, the second limiting member 24 abuts against the gear 23 on the drive shaft 22, making the function of the second limiting member 24 more efficient.

[0063] Reference Figures 1-10 In one optional embodiment of the present invention, the moving contact assembly 40 includes a cover 41 and a first moving contact 42, the first moving contact 42 being fixed inside the cover 41. A portion of the driving assembly 20 passes through the cover 41 and the first moving contact 42. The stationary contact assembly 30 includes two first stationary contacts 31, both of which are fixed to the housing 10 and disposed on both sides of the moving contact assembly 40. Both first stationary contacts 31 selectively contact the first moving contact 42. The first stationary contacts 31 of the multiple sets of stationary contact assemblies 30 have different circumferential dimensions. Thus, by setting the first stationary contacts 31 of the multiple sets of stationary contact assemblies 30 to have different circumferential dimensions, the different sets of stationary contact assemblies 30 and the moving contact assembly 40 can be disconnected sequentially, thereby realizing the pre-charge, discharge, and charging function sequence.

[0064] For example, after the power distributor 100 performs the pre-charge function, the drive component 20 is controlled to rotate, thereby enabling the power distributor 100 to perform the discharge function. Since the first stationary contact 31 for the pre-charge function is shorter, the power distributor 100 cannot perform the pre-charge function when performing the discharge function, thus ensuring the safety of the power distributor 100. Furthermore, when a charging operation is required, the drive component 20 is controlled to rotate, enabling the power distributor 100 to perform the charging function. In this case, the first stationary contact 31 for the discharge function is longer, allowing the power distributor 100 to perform both charging and discharging functions simultaneously.

[0065] Among them, the moving contact component 40 is mounted on the drive shaft 22.

[0066] And, such as Figure 10 As shown, the first static contact 31 includes a fixing part 311 and a mating part 312. The mating part 312 is disposed on one side of the fixing part 311. The fixing part 311 is fixed to the housing 10. The mating part 312 selectively contacts the first moving contact 42. The mating parts 312 of the multiple sets of static contact assemblies 30 have different circumferential dimensions. With this configuration, the first static contact 31 can be fixed to the housing 10 by the fixing part 311, and an electrical connection can be achieved between the first static contact 311 and the first moving contact 42 through the mating part 312. The difference between the different first static contacts 31 lies in the different circumferential dimensions of the mating part 312, thereby realizing the timing of pre-charge, discharge, and charge functions.

[0067] Reference Figures 7-9 As shown, there can be two first moving contacts 42, which are arranged opposite to each other, and a first stationary contact 31 is selectively sandwiched between the two first moving contacts 42. The two first moving contacts 42 sandwiching the first stationary contact 31 in the middle ensures good contact between the first moving contacts 42 and the first stationary contact 31, thus achieving electrical connection between them. Furthermore, it increases the contact area between the first moving contacts 42 and the first stationary contact 31, thereby improving the current-carrying capacity of the power distributor 100.

[0068] And, refer to Figures 8-9As shown, the moving contact assembly 40 further includes a first elastic member 43, one end of which abuts against the cover 41 and the other end against the first moving contact 42, so that the first moving contact 42 and the first stationary contact 31 abut against each other. Thus, by providing the first elastic member 43 within the cover 41, and by having one end of the first elastic member 43 abut against the cover 41 and the other end against the first moving contact 42, an elastic force is applied to the first moving contact 42 through the first elastic member 43, thereby ensuring that the first moving contact 42 continuously abuts against the first stationary contact 31, thereby achieving a stable electrical connection between the first moving contact 42 and the first stationary contact 31.

[0069] Since there can be two first moving contact members 42, there can also be two first elastic members 43. That is, the two first moving contact members 42 and the two first elastic members 43 correspond one-to-one, so that both first moving contact members 42 are subjected to elastic force, thereby clamping the first static contact member 31 well.

[0070] In addition, combined Figure 8 and Figure 9 As shown, the moving contact assembly 40 further includes a first limiting member 44, which is disposed on the side of the first moving contact 42 away from the first elastic member 43. The first limiting member 44 is disposed on the side of the first moving contact 42 away from the first elastic member 43 to limit the degree of freedom of the first moving contact 42, i.e., to prevent the first moving contact 42 from moving away from the first stationary contact 31 under the elastic force of the first elastic member 43, thereby ensuring a good electrical connection between the first moving contact 42 and the first stationary contact 31.

[0071] Among them, reference Figure 4 and Figure 10 As shown, the housing 10 is provided with a first snap-fit ​​portion 11, and the first stationary contact member 31 is provided with a second snap-fit ​​portion 313. The first snap-fit ​​portion 11 and the second snap-fit ​​portion 313 engage with each other. In this way, the first stationary contact member 31 can be fixed to the housing 10 through the snap-fit ​​engagement of the first snap-fit ​​portion 11 and the second snap-fit ​​portion 313, thereby facilitating the fixation of the first stationary contact member 31.

[0072] Furthermore, the first snap-fit ​​part 11 is one of a snap-fit ​​and a slot, and the second snap-fit ​​part 313 is the other of a snap-fit ​​and a slot, with the snap-fit ​​and slot engaging. In this way, the first static contact 31 is fixed to the housing 10 by the snap-fit ​​of the snap-fit ​​and slot. The snap-fit ​​method of the snap-fit ​​and slot is simple and easy to manufacture.

[0073] Of course, a first mounting hole can also be provided on the housing 10, and a second mounting hole can be provided on the first stationary contact 31. After passing through the second mounting hole, the fastener connects to the first mounting hole, thereby fixing the first stationary contact 31 to the housing 10. This can effectively fix the first stationary contact 31. The fastener can be a screw.

[0074] And, refer to Figure 10 As shown, the first stationary contact 31 has a guide slope 33 on the side facing the rotation direction of the first moving contact 42. That is, by providing the guide slope 33 on the first stationary contact 31, the first moving contact 42 can slide smoothly into the first stationary contact 31, reducing the torque required by the drive shaft 22 and making it less prone to jamming.

[0075] Furthermore, when there are two first moving contact members 42, the first stationary contact member 31 is provided with guide slopes 33 on both sides, which facilitates the contact between the two first moving contact members 42 and the first stationary contact member 31.

[0076] Reference Figure 7 As shown, the moving contact assembly 40 further includes a fixing member 45, one end of which is engaged with the cover 41 and the other end of which is engaged with the drive assembly 20, thereby fixing the moving contact assembly 40 onto the drive assembly 20. That is, the fixing member 45 is provided on the cover 41, and the fixing member 45 can be connected not only to the cover 41 but also to the drive assembly 20, thereby fixing the moving contact assembly 40 onto the drive assembly 20.

[0077] Specifically, the fixing member 45 is a limit key, and the transmission shaft 22 is provided with a groove that cooperates with the limit key, so that the moving contact assembly 40 is fixed on the transmission shaft 22.

[0078] Among them, reference Figure 9 As shown, a first limiting part 415 is provided on the cover 41, and a second limiting part 421 is provided on the first movable contact member 42. The first limiting part 415 and the second limiting part 421 are mutually limiting and engaged. Thus, by providing the first limiting part 415 on the cover 41 and the second limiting part 421 on the first movable contact member 42, the first movable contact member 42 can be fixed to the housing 10 through the limiting and engaging of the first limiting part 415 and the second limiting part 421. This allows the cover 41 to drive the first movable contact member 42 to rotate together when it is connected to the drive shaft 22 via the fixing member 45.

[0079] Furthermore, the first limiting part 415 can be either a limiting post or a limiting hole, and the second limiting part 421 can be either a limiting post or a limiting hole, with the limiting post and the limiting hole providing a limiting fit. That is, the first moving contact 42 and the cover 41 are connected through the limiting post and the limiting hole, which facilitates the assembly of the first moving contact 42 and the cover 41.

[0080] Furthermore, the first limiting member 44 is a retaining ring, and a retaining groove is provided on the limiting post. The retaining ring is locked in the retaining groove, thereby limiting the degree of freedom of the first moving contact member 42 by means of the retaining ring.

[0081] Furthermore, the first elastic element 43 can be fitted onto the limiting post, thus making reasonable use of the limiting post's structure.

[0082] Reference Figure 8 and Figure 9 As shown, the cover 41 includes a first cover 411 and a second cover 412. The first cover 411 is provided with a third snap-fit ​​portion 413, and the second cover 412 is provided with a fourth snap-fit ​​portion 414. The third snap-fit ​​portion 413 is one of a buckle and a slot, and the fourth snap-fit ​​portion 414 is the other of a buckle and a slot. The buckle and the slot engage in a snap-fit ​​cooperation. In this way, through the snap-fit ​​cooperation of the third snap-fit ​​portion 413 and the fourth snap-fit ​​portion 414, the first cover 411 can be fixed to the second cover 412, thereby facilitating the fixation of the first cover 411.

[0083] Furthermore, the third snap-fit ​​part 413 is one of a buckle and a slot, and the fourth snap-fit ​​part 414 is the other of a buckle and a slot, with the buckle and slot engaging in a snap-fit ​​connection. In this way, the first cover 411 is fixed to the second cover 412 by the snap-fit ​​connection of the buckle and the slot. The snap-fit ​​method of the buckle and the slot is simple and easy to manufacture.

[0084] Reference Figures 11-19 In another optional embodiment of the invention, the moving contact assembly 40 includes a second moving contact 46, a first moving contact 42 fixedly connected to the drive assembly 20, and the first moving contact 42 at least partially surrounding the drive assembly 20. The second moving contacts 46 of the multiple sets of moving contact assemblies 40 have different circumferential dimensions. The stationary contact assembly 30 includes two second stationary contacts 34 fixed to the housing 10 and spaced apart from each other. Each second stationary contact 34 selectively contacts the second moving contact 46. Thus, by setting the second moving contacts 46 of the multiple sets of moving contact assemblies 40 to have different circumferential dimensions in the drive assembly 20, different sets of stationary contact assemblies 30 and moving contact assemblies 40 can be disconnected sequentially, thereby achieving the pre-charge, discharge, and charging function sequence.

[0085] For example, after the power distributor 100 performs the pre-charge function, the drive component 20 is controlled to rotate, thereby enabling the power distributor 100 to perform the discharge function. Since the second moving contact 46, which performs the pre-charge function, is shorter, the power distributor 100 cannot perform the pre-charge function when performing the discharge function, thus ensuring the safe use of the power distributor 100. Furthermore, when a charging operation is required, the drive component 20 is controlled to rotate, enabling the power distributor 100 to perform the charging function. In this case, the second moving contact 46, which performs the discharge function, is longer, allowing the power distributor 100 to perform both charging and discharging functions simultaneously.

[0086] Reference Figure 14 , Figure 18 and Figure 19 As shown, the moving contact assembly 40 further includes a second elastic member 47, one side of which is connected to the drive assembly 20, and the other side of which is connected to the second moving contact member 46, so that the second moving contact member 46 abuts against the second moving contact member 46. Thus, by providing the second elastic member 47 on the moving contact assembly 40, and by having one side of the second elastic member 47 abut against the drive assembly 20 and the other side of the second elastic member 47 abut against the second moving contact member 46, an elastic force is applied to the second moving contact member 46 through the second elastic member 47. When the second moving contact member 46 abuts against the second stationary contact member 34, the second elastic member 47 causes the first moving contact member 42 to continuously abut against the first stationary contact member 31, thereby achieving a stable electrical connection between the first moving contact member 42 and the first stationary contact member 31.

[0087] And, refer to Figure 17 As shown, a slot is provided on the second static contact 34, so that the second static contact 34 can be fixed on the housing 10 by the snap-fit ​​of the buckle and the slot.

[0088] Furthermore, a plurality of spaced baffles are provided on the top of the housing 10, and the second stationary contact 34 is disposed between two adjacent baffles. That is, the baffles can separate two adjacent second stationary contacts 34, thereby preventing short circuits between two adjacent second stationary contacts 34.

[0089] The second stationary contact 34 has a guide arc surface 36 on the side facing the rotation direction of the second moving contact 46. That is, by providing the guide arc surface 36 on the second stationary contact 34, the second moving contact 46 can slide smoothly into the first stationary contact 31, reducing the torque required by the drive shaft 22 and preventing jamming. Of course, the second moving contact 46 can also have a guide arc surface 36, which would similarly facilitate the cooperation between the second moving contact 46 and the second stationary contact 34.

[0090] According to a second aspect embodiment of the present invention, a vehicle includes a power distributor 100. By misaligning multiple sets of moving contact components 40 on the power distributor 100 with the drive component 20 in the circumferential direction, a one-to-one correspondence between the multiple sets of moving contact components 40 and the multiple sets of stationary contact components 30 is achieved. Furthermore, by driving the multiple sets of moving contact components 40 to rotate through the drive member 21, the conduction of different circuits on the power distributor 100 is realized, and the power distributor 100 can switch between different functions.

[0091] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0092] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0093] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A power distribution device (100), characterized in that, include: Shell (10); A drive assembly (20) is disposed within the housing (10); Multiple sets of static contact components (30) are fixed at intervals on the housing (10); Multiple sets of dynamic contact components (40) are spaced apart in the axial direction of the drive component (20) and staggered in the circumferential direction of the drive component (20). as well as, The moving contact assembly (40) includes: a cover (41) and a first moving contact (42), the first moving contact (42) being fixed inside the cover (41), and a portion of the driving assembly (20) passing through the cover (41) and the first moving contact (42). The static contact assembly (30) includes two first static contact members (31), both of which are fixed to the housing (10) and disposed on both sides of the dynamic contact assembly (40). Both of the first static contact members (31) selectively contact the first dynamic contact member (42). The first static contact members (31) of the multiple sets of static contact assemblies (30) have different dimensions in the circumferential direction. Multiple sets of static contact components (30) and multiple sets of dynamic contact components (40) correspond one-to-one and make contact selectively. The contact size of each set of static contact components (30) and each corresponding set of dynamic contact components (40) in the circumferential direction is different.

2. The power distribution unit (100) according to claim 1, characterized in that, The first static contact (31) includes a fixing part (311) and a mating part (312). The mating part (312) is disposed on one side of the fixing part (311). The fixing part (311) is fixed to the housing (10). The mating part (312) and the first dynamic contact (42) selectively contact each other. The mating parts (312) of the multiple sets of static contact assemblies (30) have different dimensions in the circumferential direction.

3. The power distribution unit (100) according to claim 1, characterized in that, There are two first moving contacts (42), which are arranged opposite to each other, and the first stationary contact (31) is selectively sandwiched between the two first moving contacts (42).

4. The power distribution unit (100) according to claim 1, characterized in that, The moving contact assembly (40) further includes a first elastic member (43), one end of which abuts against the cover (41) and the other end of which abuts against the first moving contact member (42) so that the first moving contact member (42) and the first stationary contact member (31) abut against each other.

5. The power distribution unit (100) according to claim 4, characterized in that, The moving contact assembly (40) further includes a first limiting member (44), which is disposed on the side of the first moving contact member (42) away from the first elastic member (43).

6. The power distribution unit (100) according to claim 1, characterized in that, The housing (10) is provided with a first snap-fit ​​part (11), and the first static contact (31) is provided with a second snap-fit ​​part (313). The first snap-fit ​​part (11) is one of a buckle and a slot, and the second snap-fit ​​part (313) is the other of a buckle and a slot. The buckle and the slot engage in a snap-fit ​​cooperation.

7. The power distribution unit (100) according to claim 1, characterized in that, The first static contact (31) has a guide slope (33) on the side facing the rotation direction of the first dynamic contact (42).

8. The power distribution unit (100) according to claim 1, characterized in that, The moving contact assembly (40) further includes a fixing member (45), one end of which is limited to the cover (41) and the other end is limited to the drive assembly (20) to fix the moving contact assembly (40) on the drive assembly (20).

9. The power distribution unit (100) according to claim 1, characterized in that, The cover (41) is provided with a first limiting part (415), and the first moving contact (42) is provided with a second limiting part (421). The first limiting part (415) is one of a limiting post and a limiting hole, and the second limiting part (421) is the other of a limiting post and a limiting hole. The limiting post and the limiting hole are in a limiting fit.

10. The power distribution unit (100) according to claim 1, characterized in that, The cover (41) includes: a first cover (411) and a second cover (412). The first cover (411) is provided with a third snap-fit ​​part (413), and the second cover (412) is provided with a fourth snap-fit ​​part (414). The third snap-fit ​​part (413) is one of a buckle and a slot, and the fourth snap-fit ​​part (414) is the other of a buckle and a slot. The buckle and the slot engage in a snap-fit ​​cooperation.

11. The power distribution unit (100) according to claim 1, characterized in that, The moving contact assembly (40) includes: a second moving contact (46), the second moving contact (46) is fixedly connected to the driving assembly (20) and at least partially surrounds the driving assembly (20), and the second moving contact (46) of the multiple sets of moving contact assemblies (40) have different dimensions in the circumferential direction; The static contact assembly (30) includes two second static contacts (34), which are fixed to the housing (10) and spaced apart from each other, and both second static contacts (34) selectively contact the second dynamic contact (46).

12. The power distribution unit (100) according to claim 11, characterized in that, The moving contact assembly (40) further includes a second elastic member (47), one side of which is connected to the drive assembly (20) and the other side is connected to the second moving contact member (46) so that the second moving contact member (46) and the second stationary contact member (34) abut against each other.

13. The power distribution unit (100) according to claim 11, characterized in that, The second static contact (34) has a guide arc surface (36) on the side facing the rotation direction of the second dynamic contact (46).

14. The power distribution unit (100) according to claim 1, characterized in that, The drive assembly (20) includes a drive member (21) and a transmission shaft (22), the drive member (21) and the transmission shaft (22) being connected in a transmission manner, and the dynamic contact assembly (40) being fixed to the transmission shaft (22).

15. The power distribution unit (100) according to claim 14, characterized in that, The drive component (20) also Includes: a speed reducer, the speed reducer comprising a plurality of gears (23) meshing with each other to reduce the rotational speed of the drive member (21).

16. The power distribution unit (100) according to claim 15, characterized in that, The gear (23) is provided with a gear portion (231), and the gear portions (231) of the plurality of gears (23) mesh with each other; and, The drive assembly (20) further includes a second limiting member (24), one end of which is fixed to the housing (10) and the other end abuts against the gear part (231).

17. A vehicle, characterized in that, include: The power distribution unit (100) according to any one of claims 1-16.

Images