CN216218204U

CN216218204U - Vehicle-mounted charging and power distribution integrated device and vehicle

Info

Publication number: CN216218204U
Application number: CN202122325108.6U
Authority: CN
Inventors: 邵麟港; 邵杰; 邓海文
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-05
Anticipated expiration: 2031-09-24

Abstract

The utility model provides a vehicle-mounted charging and power distribution integrated device and a vehicle, wherein circuits of three part modules, namely a vehicle-mounted charger, a high-voltage distribution box and a DCDC converter, are integrated in the vehicle-mounted charging and power distribution integrated device, so that the vehicle-mounted charging and power distribution integrated device has the functions of the three part modules at the same time, the three part modules are integrated into one part module, the manufacturability of a product and the reliability of the product are improved, the arrangement space of a wiring harness is reserved, the integral volume of the part is reduced, the weight of the device is reduced, the structure is simpler, wiring among the parts is reduced, and the design and maintenance cost is reduced. In addition, the first plug connector and the second plug connector of this embodiment all use the high-pressure specialty of taking quick plug, high-pressure interlocking, electromagnetic shield, IP67 protection level to connect the structure of inserting, have improved the safety protection level, are convenient for change the maintenance.

Description

Vehicle-mounted charging and power distribution integrated device and vehicle

Technical Field

The utility model relates to the field of vehicle-mounted charging and power distribution, in particular to a vehicle-mounted charging and power distribution integrated device and a vehicle.

Background

In the prior art, an electric vehicle charging system generally has a structure configured by three parts, namely, a vehicle-mounted charger, a high-voltage distribution box and a DC-DC converter (DC-DC converter), and is generally divided into three independent part modules which are respectively distributed and arranged on a whole vehicle, and an input/output circuit is formed by the parts themselves having high-voltage-throwing wire harnesses to pass through the distribution box and external interfaces so as to realize normal work of the functional part modules. Each power module is generally provided with a special fan outside to achieve the purpose of heat dissipation, but the heat dissipation mode has larger noise and small heat dissipation area, and is not sufficient. In order to effectively reduce noise and increase heat dissipation efficiency, the prior art also generally uses natural convection between heat dissipation ribs and air to dissipate heat by arranging the heat dissipation ribs on the outer surface of the box body.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a vehicle-mounted charging and power distribution integrated device and a vehicle, and aims to solve the technical problems that a charging system in the prior art is complex in structure and low in integration degree.

In order to achieve the above object, the present invention provides a mobile chassis of a delivery vehicle, a vehicle-mounted charging and power distribution integrated device, comprising: a circuit module including a first integrated circuit and a second integrated circuit; the first installation box comprises a first box body and a first box cover, wherein the upper end of the first box body is provided with a first opening, a first integrated circuit is accommodated in the first box body, a first plug-pull connector is arranged outside the first box body, and the first box cover is arranged at the first opening; the second mounting box comprises a second box body and a second box cover, the bottom of the second box body is mounted above the first box cover, a second opening is formed in the upper end of the second box body, a second integrated circuit is accommodated in the second box body, a second plug-in connector is arranged outside the second box body, and the second box cover is arranged at the second opening; the first box cover is provided with a through hole communicated with the second box body so that a wire harness can penetrate through the through hole and the second integrated circuit can be connected with the first integrated circuit.

Preferably, the first box body comprises a first bottom plate and a first side plate, the first side plate is arranged around the first bottom plate and encloses a first accommodating space with the first bottom plate, and the first integrated circuit is accommodated in the first accommodating space; the first base plate is provided with a first bulge, the first bulge is formed by upwards bulging from the first base plate, a first groove is formed outside the first base plate corresponding to the position of the first bulge, and the first integrated circuit is supported on the first bulge.

Preferably, a mounting groove is formed between the first protrusion and the first side plate, the first integrated circuit comprises a first circuit board, a first heating element connected with the lower end of the first circuit board, and a second heating element connected with the upper end of the first short circuit plate, the first heating element is abutted against the mounting groove, and the second heating element is abutted against the first box cover; the number of the first heating elements is multiple, and the number of the mounting grooves is consistent with that of the first heating elements and is arranged in a one-to-one correspondence mode.

Preferably, the first cover is provided with a second groove, the second groove is formed by downwards sinking from the first cover, a second bulge is formed in the first cover at a position corresponding to the second groove, and the second heating element is abutted to the second bulge.

Preferably, first install bin and second install bin are heat conduction material finished piece, and on-vehicle distribution integrated device that charges still includes radiator fan, and radiator fan inlays and locates in the first recess.

Preferably, the vehicle-mounted charging and power distribution integrated device further comprises a heat dissipation support, the heat dissipation support comprises a mounting plate and supporting legs, the mounting plate is connected with the supporting legs, the mounting plate is mounted at the bottom of the first box body, and heat dissipation holes are formed in the positions, corresponding to the heat dissipation fans, of the mounting plate.

Preferably, the downward protrusion of first bottom plate forms the heat dissipation muscle, and heat dissipation muscle quantity is many, sets up many heat dissipation muscle and mounting groove interval distribution.

Preferably, the second integrated circuit includes a second circuit board and a third heating element, the second integrated circuit is connected to the second box, the second box cover is provided with a third protrusion, the third protrusion protrudes upward from the second box cover, a third groove is formed in the second box cover at a position corresponding to the second protrusion, and the third heating element abuts against a groove wall of the third groove.

Preferably, the second case is integrally formed with the first cover.

Preferably, the vehicle comprises any one of the above vehicle-mounted charging and power distribution integrated devices.

According to the technical scheme, circuits of three part modules, namely the vehicle-mounted charger, the high-voltage distribution box and the DCDC converter, are integrated in the vehicle-mounted charging and power distribution integrated device, so that the vehicle-mounted charging and power distribution integrated device has the functions of the three part modules, the three part modules are integrated into one part module, the manufacturability and the reliability of a product are improved, the arrangement space of a wiring harness is reserved, the integral volume of the part is reduced, the weight of the device is reduced, the structure is simpler, wiring among the parts is reduced, and the design and maintenance cost is reduced. In addition, the first plug connector and the second plug connector of this embodiment all use the high-pressure specialty of taking quick plug, high-pressure interlocking, electromagnetic shield, IP67 protection level to connect the structure of inserting, have improved the safety protection level, are convenient for change the maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded view of a vehicle-mounted charging and power distribution integrated device according to an embodiment of the present invention;

FIG. 2 is a schematic top view of a vehicle-mounted charging and power distribution integrated device according to an embodiment of the present invention;

fig. 3 is a schematic assembly structure diagram of the vehicle-mounted charging and power distribution integrated device according to an embodiment of the utility model.

The reference numbers illustrate:

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" can include at least one of the feature either explicitly or implicitly.

Moreover, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The references to "up" and "down" in the present invention are based on the orientation shown in fig. 1 and are used only to explain the relative positional relationship between the components in the attitude shown in fig. 1, and if the particular attitude is changed, the directional indication is changed accordingly.

As shown in fig. 1, 2 and 3, an on-vehicle charging and power distribution integrated device 100, the on-vehicle charging and power distribution integrated device 100 includes a circuit module 200, a first installation box 300 and a second installation box 400, wherein the circuit module 200 includes a first integrated circuit 210 and a second integrated circuit 220; the first installation box 300 includes a first box 310 and a first box cover 320, the first box 310 has a first opening at the upper end, the first box 310 accommodates the first integrated circuit 210 therein, a first plug connector 330 is arranged outside the first box 310, and the first box cover 320 covers the first opening; the second installation box 400 comprises a second box body 410 and a second box cover 420, the bottom of the second box body 410 is installed above the first box cover 320, the upper end of the second box body 410 is provided with a second opening, the second box body 410 accommodates the second integrated circuit 220 therein, a second plug-pull joint 430 is arranged outside the second box body 410, and the second box cover 420 covers the second opening; the first cover 320 is formed with a through hole communicating with the second housing 410 for a wire harness to pass through and connect the second integrated circuit 220 with the first integrated circuit 210.

Specifically, in an embodiment of the present invention, the first integrated circuit 210 is an integrated circuit of a vehicle-mounted charger and a DCDC converter, the second integrated circuit 220 is an integrated high-voltage power distribution circuit, the first integrated circuit 210 and the second integrated circuit 220 are connected by a wire harness, and the circuits of three component modules of the vehicle-mounted charger, the high-voltage power distribution box and the DCDC converter are integrated in the vehicle-mounted charging power distribution integrated device 100, so that the vehicle-mounted charging power distribution integrated device 100 has functions of the three component modules at the same time, and the three component modules are integrated into one component module, thereby improving manufacturability of a product and reliability of the product, leaving an arrangement space of the wire harness, reducing the overall volume of the component, reducing the weight of the device, simplifying the structure, reducing wiring among the components, and reducing the design and maintenance costs. In addition, the first plug connector 330 and the second plug connector 430 of the embodiment both use a high-voltage professional plug structure with fast plugging, high-voltage interlocking, electromagnetic shielding and IP67 protection levels, so that the safety protection level is improved, and replacement and maintenance are facilitated.

In an embodiment, the first case 310 includes a first bottom plate 311 and a first side plate 312, the first side plate 312 surrounds the first bottom plate 311 and forms a first accommodating space with the first bottom plate 311, and the first integrated circuit 210 is accommodated in the first accommodating space; the first bottom plate 311 is provided with a first protrusion 313, the first protrusion 313 protrudes upwards from the first bottom plate 311, a mounting groove 340 is formed outside the first bottom plate 311 at a position corresponding to the first protrusion 313, and the first integrated circuit 210 is supported by the first protrusion 313; first bottom plate 311 has protruding to form first protruding 313 in accommodating space, on the contrary, the another side of first bottom plate 311 then is sunken down and forms mounting groove 340, first bottom plate 311 has protruding to form first protruding 313 for first integrated circuit 210 board and first protruding 313 fully contact, furthermore, can dismantle the connection through the bolt between first protruding 313 and the first integrated circuit 210, make and install the dismantlement well between the first integrated circuit 210 board, when first integrated circuit 210 board breaks down, can conveniently dismantle and maintain, avoided the replacement to whole first box 310, maintenance cost and time have been reduced.

Further, a mounting groove 340 is formed between the first protrusion 313 and the first side plate 312, the first integrated circuit 210 includes a first circuit board 211, a first heat generating element 212 connected to a lower end of the first circuit board 211, and a second heat generating element 213 connected to an upper end of the first circuit board 211, the first heat generating element 212 abuts against the mounting groove 340, and the second heat generating element 213 abuts against the first cover 320; the number of the first heat generating elements 212 is plural, the number of the mounting grooves 340 is the same as the number of the first heat generating elements 212 and is arranged in one-to-one correspondence, the first base plate 311 protrudes to form the first protrusion 313, and because of the formation of the first protrusion 313, the non-protruding portion between the first bottom plate 311 and the side plate is formed with a mounting groove 340, both sides of the first integrated circuit 210 are mounted with heating elements, in an embodiment of the present invention, the surface of the first heat generating component 212 is coated with a heat conducting member, the heat conducting member is connected to the mounting groove 340, the heat generated by the first heat generating component 212 is transmitted to the mounting groove 340 through the heat conducting member, and the heat is dissipated out of the vehicle-mounted charging and power distribution integrated device 100, specifically, the heat conducting member is a heat conducting silica gel, which has good heat conducting and electrical insulating properties, the heat generated by the first heat generating element 212 can be well conducted out of the vehicle-mounted charging and power distribution integrated device 100; similarly, the second heating element 213 and the first cover 320 are abutted to each other through the heat conducting member, and the heat conducting member can improve the heat conducting performance and enhance the heat dissipation performance of the internal electrical components of the vehicle-mounted charging and power distribution integrated device 100.

Furthermore, the first cover 320 is provided with a second groove 321, the second groove 321 is formed by recessing downward from the first cover 320, a second protrusion is formed in the first cover 320 at a position corresponding to the second groove 321, the second heating element 213 abuts against the second protrusion, the first cover 320 is provided with a recess to form the mounting groove 340313, the inner side of the corresponding first cover forms a second protrusion, and the second protrusion can better attach to the second heating element 213, so that the technical problem that the first cover 320 cannot attach to the heating element well due to the inconsistent height of the second heating element 213 is solved, meanwhile, the second groove 321 formed by recessing the first cover 320 increases the surface area of the first cover 320, increases the heat dissipation area, and improves the heat dissipation efficiency; furthermore, according to the fluid mechanics, the air flow rate on the surface of the second groove 321 is accelerated by the arrangement of the second groove 321, so that the heat transfer rate between the air and the first case cover 320 is increased, and the heat dissipation efficiency is improved.

Specifically, the first installation box 300 and the second installation box 400 are made of a heat conducting material, the vehicle-mounted charging and power distribution integrated device 100 further comprises a heat dissipation fan 350, the heat dissipation fan 350 is embedded in the installation groove 340, specifically, the heat dissipation fan 350 is a centrifugal fan, the centrifugal fan sucks air from the axial direction of the fan and then throws the air out from the circumferential direction by utilizing centrifugal force, air flowing at the bottom of the first installation box 300 is accelerated, and heat dissipation of the first installation box 300 is facilitated; outstanding anticorrosive performance protects the inside electric elements of first install bin 300 and second install bin 400 effectively, and good heat conductivility can in time dispel the heat that inside electric elements produced, and the performance of cheap price and easy processing more does benefit to large-scale manufacturing, reduces the processing degree of difficulty and manufacturing cost, does benefit to large-scale production.

More specifically, the vehicle-mounted charging and power distribution integrated device 100 further includes a heat dissipation bracket 500, the heat dissipation bracket 500 includes a mounting plate 510 and a support leg 520, the mounting plate 510 is connected to the support leg 520, the mounting plate 510 is mounted at the bottom of the first box 310, and a heat dissipation hole 511 is formed in the mounting plate 510 corresponding to the position of the heat dissipation fan 350; specifically, the heat dissipation bracket 500 is installed at the bottom of the first box 310, the support legs 520 of the heat dissipation bracket 500 support the first box 310, so that a gap is formed at the bottom of the first box 310 for air flowing, the heat dissipation holes 511 formed at the positions of the mounting plate 510 corresponding to the heat dissipation fans 350 are opened, when the heat dissipation fans 350 are started, air is sucked into and exhausted from the fans through the gap and the heat dissipation holes 511, the heat dissipation fans 350 suck more air, the flow rate of the air is accelerated, and the heat dissipation efficiency is improved.

More specifically, the first base plate 311 protrudes downward to form a plurality of heat dissipation ribs 360, the plurality of heat dissipation ribs 360 are arranged, and the plurality of heat dissipation ribs 360 and the mounting groove 340 are distributed at intervals, specifically in an embodiment of the present invention, the first base plate 311 and the plurality of first heat dissipation ribs 360 are integrally formed, which is exemplified by manufacturing of the ribs, so that manufacturing difficulty is simplified, the plurality of heat dissipation ribs 360 and the mounting groove 340 are arranged at intervals and are arranged at the periphery of the heat dissipation fan 350, the plurality of heat dissipation ribs 360 also increase the surface area of the first base plate 311 and are arranged at the periphery of the heat dissipation fan 350, and the heat dissipation ribs 350 are more favorable for exhausting air and accelerate air transfer efficiency.

Further, the second integrated circuit 220 includes a second circuit board 221 and a third heat-generating component 222, the second integrated circuit 220 is connected to the second case 410, the second case cover 420 is provided with a third protrusion 421, the third protrusion 421 protrudes upwards from the second case cover 420, a third groove is formed in the second case cover 420 corresponding to the second protrusion, the third heat-generating component 222 abuts against a groove wall of the third groove, the second case cover 420 is provided with a protrusion to increase a surface area of the second case cover 420, which is beneficial for improving heat dissipation efficiency, in other embodiments, the second case cover 420 may also be recessed to form a groove to abut against the third heat-generating component 222, and specifically, a heat-conducting member is coated between the third heat-generating component 222 and the third groove to improve heat dissipation efficiency.

Specifically, the second case 410 is integrally formed with the first case cover 320, and the lower case and the upper case cover are integrally formed, so that the number of assembly steps between the first installation case 300 and the second installation case 400 is reduced, the assembly time is reduced, and the assembly efficiency is improved.

In addition, the vehicle includes the vehicle-mounted charging and power distribution integrated device 100, and since the delivery vehicle adopts all technical solutions of the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present specification and drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides an on-vehicle distribution integrated device that charges which characterized in that, on-vehicle distribution integrated device that charges includes:

a circuit module including a first integrated circuit and a second integrated circuit;

the first installation box comprises a first box body and a first box cover, wherein a first opening is formed in the upper end of the first box body, the first integrated circuit is accommodated in the first box body, a first plug-pull connector is arranged outside the first box body, and the first box cover is arranged at the first opening;

the second installation box comprises a second box body and a second box cover, the bottom of the second box body is installed above the first box cover, a second opening is formed in the upper end of the second box body, a second integrated circuit is accommodated in the second box body, a second plug-pull joint is arranged outside the second box body, and the second box cover is arranged at the second opening; the first box cover is provided with a through hole communicated with the second box body, so that a wire harness can penetrate through the through hole and the second integrated circuit can be connected with the first integrated circuit.

2. The vehicle-mounted charging and power distribution integrated device according to claim 1, wherein the first box body comprises a first bottom plate and a first side plate, the first side plate is arranged around the first bottom plate and encloses a first accommodating space with the first bottom plate, and the first integrated circuit is accommodated in the first accommodating space; the first base plate is provided with a first bulge, the first bulge is formed by upwards protruding from the first base plate, a first groove is formed in the position, corresponding to the first bulge, of the first base plate, and the first integrated circuit is supported on the first bulge.

3. The vehicle-mounted charging and power distribution integrated device according to claim 2, wherein a mounting groove is formed between the first protrusion and the first side plate, the first integrated circuit comprises a first circuit board, a first heating element connected to a lower end of the first circuit board, and a second heating element connected to an upper end of the first circuit board, the first heating element abuts against the mounting groove, and the second heating element abuts against the first box cover; the number of the first heating elements is multiple, and the number of the mounting grooves is consistent with that of the first heating elements and is arranged in a one-to-one correspondence mode.

4. The vehicle-mounted charging and power distribution integrated device according to claim 3, wherein the first cover is provided with a second groove, the second groove is formed by being recessed downwards from the first cover, a second protrusion is formed in the first cover at a position corresponding to the second groove, and the second heating element abuts against the second protrusion.

5. The vehicle-mounted charging and power distribution integrated device according to claim 2, wherein the first mounting box and the second mounting box are both made of heat conductive materials, and the vehicle-mounted charging and power distribution integrated device further comprises a heat dissipation fan embedded in the first groove.

6. The vehicle-mounted charging and power distribution integrated device according to claim 5, further comprising a heat dissipation bracket, wherein the heat dissipation bracket comprises a mounting plate and supporting legs, the mounting plate is connected with the supporting legs, the mounting plate is mounted at the bottom of the first box, and heat dissipation holes are formed in the mounting plate corresponding to the heat dissipation fan.

7. The vehicle-mounted charging and power distribution integrated device according to claim 2, wherein the first bottom plate protrudes downwards to form a plurality of heat dissipation ribs, and the plurality of heat dissipation ribs are arranged to be spaced apart from the mounting groove.

8. The vehicle-mounted charging and power distribution integrated device according to any one of claims 1 to 7, wherein the second integrated circuit includes a second circuit board and a third heating element, the second integrated circuit is connected to the second box body, the second box cover is provided with a third protrusion, the third protrusion protrudes upward from the second box cover, a third groove is formed in the second box cover at a position corresponding to the third protrusion, and the third heating element abuts against a groove wall of the third groove.

9. The vehicle-mounted charging and power distribution integrated device according to any one of claims 1 to 7, wherein the second box body is integrally formed with the first box cover.

10. A vehicle comprising an onboard charging and power distribution integration apparatus as claimed in any one of claims 1 to 9.