CN211509634U

CN211509634U - Three-dimensional detachable heat dissipation device of vehicle-mounted charger of new energy automobile

Info

Publication number: CN211509634U
Application number: CN201921925345.2U
Authority: CN
Inventors: 冯火青; 余培; 吴建侠
Original assignee: HANGZHOU AODI ELECTRONIC CONTROL CO Ltd
Current assignee: HANGZHOU AODI ELECTRONIC CONTROL CO Ltd
Priority date: 2019-11-10
Filing date: 2019-11-10
Publication date: 2020-09-15
Anticipated expiration: 2029-11-10

Abstract

The utility model discloses a three-dimensional detachable heat dissipation device of a vehicle-mounted charger of a new energy automobile, which comprises an inner cavity, a heat dissipation water channel and an outer cavity, wherein the inner cavity is contained on a main transformer and a main power component; the detachable heat dissipation device covers the main transformer and the main power component and is fixed on the main heat radiator through screws; the internal circulation water channel is connected with a water pipe joint, and the water pipe joint is connected with the automobile cooling external circulation and is cooled by cooling liquid. The utility model discloses device structure simplification design, the volume reduces, and the structure can be dismantled completely, and the feature of environmental protection is high. The detachable module design improves the complex degree of the water channel, has strong heat conduction pertinence and convenient maintenance and saves the cost. The heat conduction efficiency of the main heating device can reach 80-90% rapidly through heat dissipation. The manufacturing cost and the maintenance cost of the product are saved. The novel energy charger is mainly used in new energy chargers of different models.

Description

Three-dimensional detachable heat dissipation device of vehicle-mounted charger of new energy automobile

Technical Field

The utility model relates to a vehicle-mounted machine technical field that charges of new energy automobile especially indicates a three-dimensional removable heat abstractor that is used for liquid cooling water course modular design that new energy automobile charges machine.

Background

The vehicle-mounted charger of new energy automobile can give out a large amount of heats at the main power module during operation, and traditional radiator uses encapsulating technology to module heat conduction to the module radiator, and the module radiator passes to main radiator again, finally takes away a large amount of heats by circulated water channel or wind channel, can see that the heat conduction process is longer, and the heat conduction efficiency that leads to main heating device is only 50~60% not rapidly to the heat conduction. The traditional water channel structure is placed on a main radiator, and a large area of water channel results in a complex water channel structure and a trouble of no flowing dead water, and the large casting cost of the machine type is high. The traditional radiator still has the problem of maintenance difficulty after using the encapsulating technology, and a small electronic component damages and just needs the complete machine to scrap (complete machine cost is about 3000 yuan), because the module is connected integratively with the casing after the encapsulating.

Disclosure of Invention

The utility model aims to solve the technical problem that a three-dimensional removable heat abstractor of on-vehicle machine that charges of new energy automobile is provided, it is not strong and the tradition can not the maintainability to have improved water course complexity heat conduction pertinence. The module radiating effect is improved, and the manufacturing cost and the maintenance cost of the product are saved.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the detachable heat dissipation device comprises an inner cavity, a heat dissipation water channel and an outer cavity, wherein the containing cavity is contained on the main transformer and the main power component; the detachable heat dissipation device covers the main transformer and the main power component and is fixed on the main heat radiator through screws; the internal circulation water channel is connected with a water pipe joint, and the water pipe joint is connected with the automobile cooling external circulation and is cooled by cooling liquid. The detachable heat sink uses the three-dimensional inner cavity surface to conduct out the heat generated by the power element in a contact mode. And then the module radiator radiates heat through two ways, namely, the main radiating mode is that a circulating water channel takes away heat in a cooling liquid circulating mode. The secondary heat dissipation mode is a mode that the module heat radiator is in area contact with the main heat radiator to conduct heat, and then the main heat radiator cools and dissipates heat by air. The heat conduction efficiency of the main heating device can reach 80-90%. The detachable heat dissipation device is used for cooling the main transformer and the main power component on the main board. The detachable heat sink is manufactured by casting, and the heat dissipation water channel interface is connected with the detachable heat sink in a threaded manner. The heat dissipation water channel also comprises a bottom plate, and the heat dissipation water channel is connected with the bottom plate by adopting a welding process; the tightness of the whole water channel of the detachable heat dissipation device is ensured. . The bottom plate of the recyclable water channel is connected to the main radiator through screws, one surface of the bottom plate of the recyclable water channel and one surface of the main radiator are coated with heat-conducting silicone grease, the heat conductivity of the main radiator is maximized as far as possible, and the cover plate is fixed on the bottom plate of the recyclable water channel through screws. The mos tube and the bridge rectifier are tightly pressed by the spring pressing sheet and then tightly attached to the outer cavity of the detachable heat dissipation device in a screw fixing spring pressing sheet mode, and the outer cavity of the detachable heat dissipation device can also dissipate heat for the vertical mos tube and the bridge rectifier on the main board; therefore, most main power elements of the charger are radiated. The internal circulation water channel is matched with the outer wall of the main radiator by two inclined planes and is compressed by screws with sealing rings; the outer circulation water channel is matched with the outer wall of the main radiator by two inclined planes, and the outer circulation water channel is tightly pressed by a screw with a sealing ring, so that the sealing is well guaranteed.

The detachable heat dissipation device can also play a role in fixing and supporting the main board. Three columns extending out of the detachable heat dissipation device are combined with the columns at four corners of the main heat radiator to play a good role in supporting and fixing.

The utility model has the advantages that:

the structure of the module radiator is improved, the water channel is directly opened to the module radiator, a large amount of heat emitted by the module during working can be directly conducted away by the water channel on the module radiator, and a long conduction process is avoided. The heat conduction efficiency of the main heating device can reach 80-90% rapidly through heat dissipation. The detachable module design product is small in integral type, the module structure is completely detachable, and the environmental protection performance is high. The detachable module design improves the complex degree of the water channel, has strong heat conduction pertinence and convenient maintenance and saves the cost.

In conclusion, the main radiator has no water channel structure, so that the whole structure is simple, and the cost of the die is reduced; 2. the main radiator and the main power element are matched and are jointed through a thin layer of heat-conducting silicone grease, so that the maintenance is simple and detachable; 3. the heat conduction pertinence is strong, the fussy heat conduction process is avoided, and the heat conduction coefficient is large.

Drawings

In order to more clearly illustrate the technical solutions of the prior art and the embodiments of the present invention, the drawings used in the description of the prior art and the embodiments will be briefly described below.

FIG. 1 is a schematic structural diagram of a detachable heat sink;

FIG. 2 is a schematic structural diagram of a vehicle-mounted charger of the new energy automobile;

FIG. 3 is an explosion structure schematic diagram of a vehicle-mounted charger of the new energy automobile;

FIG. 4 is a schematic view of the structure of the detachable heat sink assembly and the main heat sink assembly;

fig. 5 is a schematic view of a water channel structure of the detachable heat sink.

Detailed Description

The technical solution 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.

Example 1

The detachable heat dissipation device comprises an inner cavity, a heat dissipation water channel and an outer cavity, wherein the inner cavity is contained on a main transformer and a main power component; the detachable heat dissipation device covers the main transformer and the main power component and is fixed on the main heat radiator through screws; the internal circulation water channel is connected with a water pipe joint, and the water pipe joint is connected with the automobile cooling external circulation and is cooled by cooling liquid.

Furthermore, the detachable heat dissipation device is manufactured by casting, and the heat dissipation water channel interface is connected to the detachable heat dissipation device in a threaded mode.

The heat dissipation water channel further comprises a bottom plate, and the heat dissipation water channel is connected with the bottom plate through a welding process.

The bottom plate of the heat dissipation water channel is connected to the main heat radiator by screws, and heat conduction silicone grease is coated on one surface of the main heat radiator.

And further, the mos tube and the bridge rectifier are tightly pressed by the spring pressing sheet and then tightly attached to the outer cavity of the detachable heat dissipation device in a mode of fixing the spring pressing sheet by screws.

Furthermore, the position of the internal circulation water channel is matched with the outer wall of the main radiator by two inclined planes, and the two inclined planes are matched and are provided with sealing rings to be compressed by screws; the outer circulating water channel is matched with the outer wall of the main radiator by two inclined planes, and is compressed by a screw with a sealing ring.

Example 2

A detachable heat sink shown in FIG. 1 has four mounting holes-a, a circulatable water channel inlet-b, a circulatable water channel outlet-c, a circulatable heat-dissipating water channel-d, a detachable heat sink outer cavity surface-e for mounting a bridge pile and mos tubes.

Fig. 2 is a schematic structural diagram of a vehicle-mounted charger for a new energy automobile, which includes a cover plate-1, a main radiator-2, a detachable heat dissipation device-3, a water inlet interface-401 of a recyclable water channel, and a water outlet interface-402 of the recyclable water channel.

Referring to fig. 3, the circulative heat-dissipating water passage includes: the water inlet interface-401 of the recyclable water channel, the water outlet interface-402 of the recyclable water channel are respectively connected with the detachable heat dissipation device-3 in a threaded connection mode, and the bottom plate-9 of the heat dissipation water channel is connected with the detachable heat dissipation device-3 in a welding process. Then the circulating heat-dissipation water channel is arranged on the main heat radiator-10, heat-conducting silicone grease is coated on the bottom of the heat-dissipation water channel bottom plate-9 for heat conduction during installation, and then the sealing ring is sealed and fixed by 5 screws. Then, the main board-7 is placed on the circulating heat-dissipating water channel and the main heat sink-10, and a silicon sheet is attached to the main power element-12 for heat conduction, and then the main board, the circulating water channel system and the main heat sink-10 are fixed together by 5 screws-6. Then the cover plate-1 is fixed by 6 screws.

Referring to fig. 4, the main power component-12 and the large transformer-11 are placed in the cavity of the detachable heat sink-8 and thermally conducted by the silicone sheet, and the bridge or mos tube-13 is attached to the external cavity surface-e of the detachable heat sink and pressed by the elastic sheet-14 and then fixed by screws.

Referring to fig. 5, it can be seen that the mounting surface is an inclined surface, and sealing rings are respectively fixedly sealed on a water inlet interface-401 of the recyclable water channel and a water outlet interface-402 of the recyclable water channel by 2 screws-15.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The detachable heat dissipation device is characterized by comprising an inner cavity, a heat dissipation water channel and an outer cavity, wherein the inner cavity is contained on a main transformer and a main power component; the detachable heat dissipation device covers the main transformer and the main power component and is fixed on the main heat radiator through screws; the internal circulation water channel is connected with a water pipe joint, and the water pipe joint is connected with the automobile cooling external circulation and is cooled by cooling liquid.

2. The three-dimensional detachable heat dissipation device of the vehicle-mounted charger for the new energy automobile according to claim 1, wherein the detachable heat dissipation device is manufactured by casting, and the heat dissipation water channel interface is connected to the detachable heat dissipation device in a threaded manner.

3. The three-dimensional detachable heat dissipation device of the vehicle-mounted charger of the new energy automobile according to claim 1, wherein the heat dissipation water channel further comprises a bottom plate, and the heat dissipation water channel is connected with the bottom plate through a welding process.

4. The three-dimensional detachable heat dissipation device of the vehicle-mounted charger of the new energy automobile according to claim 1, wherein a bottom plate of the heat dissipation water channel is connected to the main heat sink through screws, and one surface of the heat dissipation water channel and one surface of the main heat sink are coated with heat-conducting silicone grease.

5. The three-dimensional detachable heat dissipation device of the vehicle-mounted charger of the new energy automobile according to claim 1, wherein the mos tube and the bridge rectifier are tightly pressed by the spring pressing sheet and then tightly attached to the outer cavity of the detachable heat dissipation device in a manner of fixing the spring pressing sheet by screws.

6. The three-dimensional detachable heat dissipation device of the vehicle-mounted charger of the new energy automobile according to claim 1, wherein the inner circulation water channel is matched with the outer wall of the main heat radiator by two inclined surfaces, and is compressed by screws with sealing rings; the outer circulating water channel is matched with the outer wall of the main radiator by two inclined planes, and is compressed by a screw with a sealing ring.

7. The three-dimensional detachable heat dissipation device of the vehicle-mounted charger of the new energy automobile according to claim 1, wherein the inner circulation water channel is in a large-opening U shape, and the main heat sink at least comprises one large-opening U matched with the large-opening U.

8. The three-dimensional detachable heat dissipation device of the vehicle-mounted charger of the new energy automobile according to claim 1, wherein the outer circulation water channel is in a U shape with a large opening, and the main heat sink is provided with two U shapes with large openings.