CN216033856U

CN216033856U - Integrated structure of charging system, vehicle-mounted charger and charging pile

Info

Publication number: CN216033856U
Application number: CN202122274505.5U
Authority: CN
Inventors: 冯颖盈; 徐金柱; 罗耀文; 王虎
Original assignee: Shenzhen Vmax Power Co Ltd
Current assignee: Shenzhen Weimeisi New Energy Group Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-03-15
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses an integrated structure of a charging system, an on-board charger and a charging pile, wherein the integrated structure of the charging system comprises a first PCB (printed circuit board) and a second PCB, a shell, a water cooling plate and a heat dissipation support plate, wherein a cooling water flow channel is arranged on the water cooling plate, an OBC (on-board communication) module and a DCDC (direct current DC) module are arranged on the first PCB, a filtering module is arranged on the second PCB, one of the first PCB and the second PCB is arranged on one side of the water cooling plate, which is provided with the cooling water flow channel, the other one of the second PCB and the first PCB is arranged on the heat dissipation support plate, and the heat dissipation support plate and the water cooling plate are fixedly attached; the shell comprises a plurality of side plates and a cover plate, the side plates are provided with clamping grooves, and the water cooling plates are inserted into the clamping grooves. The OBC module, the DCDC module and the filtering module are perfectly integrated together, the whole structure is simpler and more compact, a plurality of unnecessary part structures are reduced, the size and the weight of the charger can be effectively reduced, and the power density is improved.

Description

Integrated structure of charging system, vehicle-mounted charger and charging pile

Technical Field

The utility model relates to the field of new energy automobiles, in particular to an integrated structure of a charging system, a vehicle-mounted charger and a charging pile.

Background

With the requirements of energy conservation and emission reduction and air pollution control, new energy automobiles are gradually commercialized in the market, and electric automobiles are more the main force of the new energy automobiles. Along with the increase of the endurance mileage of the electric vehicle by consumers, the capacity of the battery is increased, the charging power of the charger is increased, and the charging time is shortened; under such a trend, the power, the weight and the size of the charger have to be correspondingly increased, so that under the background, the structure of the conventional charger is quite complicated, the size and the weight of the whole charger are larger, and the corresponding power density is lower; meanwhile, the integrated structure of the charging system is installed in the housing, and the housing is generally designed as a whole, so that if part of the structure fails, and the internal assembly and replacement are very difficult, the whole charging system may need to be scrapped.

SUMMERY OF THE UTILITY MODEL

The utility model provides an integrated structure of a charging system, a vehicle-mounted charger and a charging pile, and solves the technical problems of complex structure, large size and low power density of the charging system of the charger, the charging pile and other equipment in the prior art.

The technical scheme adopted by the utility model is as follows: an integrated structure of a charging system, comprising: the first PCB and the second PCB are used for integrally installing modules in the charging system, and the filtering module is integrally arranged on the second PCB; the first PCB and the second PCB are respectively arranged on two sides of the water cooling plate, the water cooling plate is provided with a cooling water flow channel, and the cooling water flow channel simultaneously dissipates heat of the first PCB and the second PCB; the shell, the shell includes a plurality of curb plates and apron, each the curb plate end to end concatenation is fixed to enclose to be established in order to form the frame of water-cooling board week side, just the curb plate with the joint is fixed between the water-cooling board, the apron lid is established on the opening at frame both ends.

Furthermore, one side of the water cooling plate is provided with the raised cooling water flow channel, the cooling water flow channel is bent, one end of the cooling water flow channel is provided with a water inlet pipe, the other end of the cooling water flow channel is provided with a water outlet pipe, the water inlet pipe and the water outlet pipe penetrate out of the side plate, and sealing rings are filled between the water inlet pipe and the side plate and between the water outlet pipe and the side plate; the cover plate and the side plate, and the side plate are sealed through a sealing ring and/or a sealing glue.

Furthermore, one side of the water cooling plate is provided with a raised cooling water channel; the integrated structure further comprises a heat dissipation supporting plate, and the heat dissipation supporting plate is attached to one side, opposite to the cooling water flow channel, of the water cooling plate.

Furthermore, a heat conduction material is filled between the heat dissipation support plate and the water cooling plate.

Further, one of the OBC circuit board and the DCDC circuit board is arranged on one side of the water cooling plate, which is provided with the cooling water flow channel, and the other one of the OBC circuit board and the DCDC circuit board is arranged on the heat dissipation support plate.

Further, the heat dissipation support plate and/or the water cooling plate are made of die-cast aluminum.

Furthermore, a clamping groove is formed in one side of the side plate, opposite to the water cooling plate, and the water cooling plate is inserted into the clamping groove.

Furthermore, a plurality of raised lattice bars are arranged on one side of the side plate facing the water cooling plate at intervals, and the middle parts of the lattice bars are provided with the clamping grooves.

The application further discloses on-vehicle machine that charges and fill electric pile, on-vehicle machine that charges and fill electric pile all included integrated configuration.

Compared with the prior art, the charging system has the advantages that the modules (such as the OBC module, the DCDC module and the filtering module) of the charging system are perfectly integrated on the two PCB boards, the whole structure is simpler and more compact, a plurality of unnecessary part structures are reduced, the size and the weight of the charger can be effectively reduced, and the power density is improved; and set up like this and still have the quick convenient characteristics of dismouting, the equipment and the change of the inside spare part of the on-vehicle machine that charges of being convenient for.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic diagram of a three-dimensional structure of an integrated structure of a charging system according to the present invention.

Fig. 2 is an exploded schematic view of the integrated structure of the charging system in the present invention.

Fig. 3 is a schematic diagram of a power conversion assembly of the present invention.

FIG. 4 is a schematic diagram of the installation structure of the water cooling plate and the first PCB board in the present invention.

Fig. 5 is a schematic diagram of a mounting structure of the heat dissipation support plate and the second PCB according to the present invention.

Reference numerals:

1. a water-cooling plate; 11. a first support column; 2. a heat dissipation support plate; 21. a second support column; 3. a second PCB board; 4. a first PCB board; 5. a housing; 51. a side plate; 511. a card slot; 52. a cover plate; 6. a seal ring; 7. a cooling water flow passage; 71. a water inlet pipe; 72. and (5) discharging a water pipe.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.

The present application proposes an integrated structure of a charging system, in which, as shown in fig. 1 to 3, the following structure is mainly included: water-cooling board 1, heat dissipation backup pad 2, OBC module, DCDC module, filtering module and shell 5.

The water cooling plate 1 is a rectangular plate body, and the OBC module and the DCDC module are integrally arranged on the first PCB 4; the filtering module is integrated on the second PCB 3; second PCB board 3 and first PCB board 4 then install respectively and fix on the upper and lower both sides of water-cooling board 1, and water-cooling board 1 will possess good heat dispersion to dispel the heat to second PCB board 3 and first PCB board 4 simultaneously.

Further, as shown in fig. 2, 3 and 4, in one embodiment, a cooling water channel 7 is disposed below the water cooling plate 1, the cooling water channel 7 is a protruding lath structure, the interior of the lath is hollow, and water is respectively fed and discharged at two ends of the lath to form the cooling water channel 7; and here set up cooling water runner 7 into the bending form, similar to snakelike bending, the below and first PCB board 4 of water-cooling board 1 are connected, can adopt bolted connection or welded mode to fix water-cooling board 1 and first PCB board 4, form an independent module, hereinafter be called first module, the component on first PCB board 4 then sets up the lateral part at cooling water runner 7 (cooling water runner 7 is buckled and is encircleed the component), can increase the heat radiating area of cooling water runner 7 as far as like this to promote integrated configuration's radiating effect.

Wherein, adopt the mode of screwed connection to fix between water-cooling board 1 and the first PCB board 4, for the structural stability between increase water-cooling board 1 and the first PCB board 4, the edge part that is close to between water-cooling board 1 and the first PCB board 4 has set up a plurality of first support columns 11, first support column 11 and water-cooling board 1 integrated into one piece, first support column 11 is seted up threaded hole towards the one end of first PCB board 4, fix first PCB board 4 on first support column 11 through the screw, both can avoid the component on the first PCB board 4 to be extruded like this, can carry out stable connection with water-cooling board 1 and first PCB board 4 again and fix.

After the water-cooling plate 1 and the first PCB 4 are arranged into an integral module, the second PCB 3 is fixed on the other side of the water-cooling plate 1, so as to integrate the OBC module, the DCDC module and the filter module together, in order to conveniently fix the second PCB 3 and the water-cooling plate 1, the present application further provides a heat dissipation support plate 2, the heat dissipation support plate 2 is first fixedly connected with the second PCB 3, and the connection between the two can be fixed by screws, for example, the fixing manner of the water-cooling plate 1 and the first PCB 4, a second support column 21 is also arranged at the edge of the heat dissipation support plate 2, a threaded hole is opened at the end of the second support column 21, the second PCB 3 is fixed on the second support column 21 by screws, and the second PCB 3 and the heat dissipation support plate 2 are fixed together to form another integral module, hereinafter referred to as a second module, the heat dissipation support plate 2 can guide heat dissipated from the components on the second PCB 3 to the heat dissipation support plate 2 and discharge to the outside.

Combine the attached

drawing

2, 3, 5, carry out the aggregate erection again with first module and second module, fix the laminating of the heat dissipation backup pad 2 of second module at the back of water-cooling board 1 (for the one side of first PCB board 4) and form a power conversion subassembly, use the fix with screw to form a complete power conversion subassembly together between heat dissipation backup pad 2 and the water-cooling board 1, this application still packs the heat conduction material between heat dissipation backup pad 2 and water-cooling board 1, the heat conduction material can be better with the second PCB board on heat conduction to water-cooling board 1 and take away through the cooling water.

It should be noted that, in other embodiments, the water-cooling plate 1 may also be installed and fixed with the second PCB 3, and the corresponding heat dissipation support plate 2 is used to install and fix the first PCB 4.

Preferably, heat-conducting glue or heat-conducting silicone grease are selected for use to heat-conducting material, can fill up the small clearance between backup pad 2 and the water-cooling board 1 with dispelling the heat like this, make things convenient for the loss on the first PCB board to generate heat big device heat transfer to take away the heat dissipation through the water course on the water-cooling board 1, set up like this simultaneously and can also give the backup pad 2 and the certain buffering of water-cooling board 1 of dispelling the heat, avoid circuit structure to take place to damage when the installation.

After installing second PCB board 3 and first PCB board 4 through water-cooling board and heat dissipation backup pad aggregate erection, then in installing shell 5, wherein, shell 5 of this application adopts the fixed mode of amalgamation, shell 5 has specifically included curb plate 51 and apron 52, the quantity of curb plate 51 is corresponding with the shape of water-cooling board 1, water-cooling board 1 is the rectangle in this application, consequently, set up curb plate 51 into four here, these four curb plates 51 are installed respectively in the one end of water-cooling board 1, and it is fixed in order to form the frame of enclosing in water-cooling board 1 week side again to splice end to end between each curb plate 51, and carry out the joint between curb plate 51 and the water-cooling board 1 and fix, then establish apron 52 lid on the opening at frame both ends, thereby encapsulate the power conversion subassembly.

Specifically, a clamping groove 511 is formed in one side of the side plate 51 facing the water cooling plate 1, the water cooling plate 1 is inserted into the clamping groove 511 of the side plate 51, then the side plates 51 are assembled together in a screw connection or clamping and fixing mode, after the side plate 51 is installed, the upper side and the lower side of a frame formed by the side plates 51 are respectively covered with a cover plate 52, and the cover plate 52 and the side plate 51 are fixed together through screws.

Preferably, the card slot 511 in the present application is provided with: the interval has set up the bellied check strip of a plurality of bars on curb plate 51, the length direction of every check strip perpendicular and water-cooling plate 1's plane, and these check strips arrange with its length direction of perpendicular to, set up at the middle part of check strip draw-in groove 511 sets up like this not only can not carry out the joint to water-cooling plate 1, can also promote curb plate 51's structural strength to every check strip all can support in the upper and lower both sides of water-cooling plate 1, and the check strip supports between water-cooling plate 1 and apron 52, has promoted overall structure's joint strength.

Furthermore, one end of the cooling water flow passage 7 is provided with a water inlet pipe 71, the other end is provided with a water outlet pipe 72, cooling water enters from the water inlet pipe 71 and exits from the water outlet pipe 72, the water outlet pipe 72 and the water inlet pipe 71 are arranged on the same side of the water cooling plate 1, and the water outlet pipe 72 and the water inlet pipe 71 penetrate through the same side plate 51, so that sealing rings 6 are filled between the water inlet pipe 71 and the side plate 51 and between the water outlet pipe 72 and the side plate 51; and, the sealing rings 6 and/or the sealing glue are used for sealing between the cover plate 52 and the side plate 51 and between the side plate 51 and the side plate 51, so that the waterproof performance of the whole equipment is obviously improved.

Preferably, the water-cooling plate 1 of the heat dissipation support plate 2 in the application is made of die-cast aluminum, has the advantages of low density, light weight, good heat conductivity coefficient and the like, and is very suitable for a charger.

The OBC module, the DCDC module and the filtering module are perfectly integrated together, so that the overall structure of the charging system is simpler and more compact, a plurality of unnecessary part structures are reduced, the size and the weight of the charger can be effectively reduced, and the power density is improved; and set up like this and still have the quick convenient characteristics of dismouting, the equipment and the change of the inside spare part of the on-vehicle machine that charges of being convenient for.

The application also provides a vehicle-mounted charger and a charging pile, which comprise the integrated structure of the charging system.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An integrated structure of a charging system, comprising:

a first PCB board (4) and a second PCB board (3) for integrally mounting modules in the charging system;

the PCB comprises a water cooling plate (1), wherein a first PCB (4) and a second PCB (3) are respectively arranged on two sides of the water cooling plate (1), a cooling water flow channel (7) is arranged on the water cooling plate (1), and the cooling water flow channel (7) is used for simultaneously dissipating heat of the first PCB (4) and the second PCB (3);

shell (5), shell (5) include a plurality of blocks of curb plates (51) and apron (52), each curb plate (51) end to end concatenation is fixed to be established in order to form to enclose the frame of establishing all sides of water-cooling board (1), just curb plate (51) with the joint is fixed between water-cooling board (1), apron (52) lid is established on the opening at frame both ends.

2. The integrated structure of the charging system according to claim 1, wherein a raised cooling water flow channel (7) is arranged on one side of the water cooling plate (1), a water inlet pipe (71) is arranged at one end of the cooling water flow channel (7), a water outlet pipe (72) is arranged at the other end of the cooling water flow channel, the water inlet pipe (71) and the water outlet pipe (72) penetrate out of the side plate (51), and sealing rings (6) are filled between the water inlet pipe (71) and the side plate (51) and between the water outlet pipe (72) and the side plate (51); the cover plate (52) and the side plate (51) are sealed, and the side plate (51) are sealed through a sealing ring (6) and/or sealing glue.

3. The integrated structure of a charging system according to claim 1, characterized in that one side of the water-cooled plate (1) is provided with the raised cooling water flow passage (7); the integrated structure further comprises a heat dissipation support plate (2), wherein the heat dissipation support plate (2) is attached to one side, opposite to the cooling water flow channel (7), of the water cooling plate (1).

4. The integrated structure of a charging system according to claim 3, characterized in that the heat dissipation support plate (2) and the water cooling plate (1) are filled with a heat conductive material therebetween.

5. The integrated structure of a charging system according to claim 3, characterized in that one of the first PCB (4) and the second PCB (3) is mounted on the side of the water-cooled plate (1) where the cooling water flow channel (7) is provided, and the other of the first PCB (4) and the second PCB (3) is mounted on the heat dissipation support plate (2).

6. The integrated structure of a charging system according to claim 3, characterized in that the heat dissipation support plate (2) and/or the water cooling plate (1) are made of die-cast aluminum.

7. The integrated structure of a charging system according to claim 1, characterized in that a side of the side plate (51) opposite to the water-cooling plate (1) is provided with a slot (511), and the water-cooling plate (1) is inserted into the slot (511).

8. The integrated structure of a charging system according to claim 7, wherein a plurality of raised grid bars are arranged at intervals on one side of the side plate (51) facing the water cooling plate (1), and the middle part of each grid bar is provided with the clamping groove (511).

9. A vehicle-mounted charger characterized in that it comprises an integrated structure of a charging system according to any one of claims 1 to 8.

10. A charging pile, characterized in that it comprises an integrated structure of a charging system according to any one of claims 1 to 8.