CN211671135U - High-pressure box for electric automobile - Google Patents
High-pressure box for electric automobile Download PDFInfo
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- CN211671135U CN211671135U CN202020499473.1U CN202020499473U CN211671135U CN 211671135 U CN211671135 U CN 211671135U CN 202020499473 U CN202020499473 U CN 202020499473U CN 211671135 U CN211671135 U CN 211671135U
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Abstract
The utility model relates to an electric automobile technical field, in particular to high-pressure tank for electric automobile. High-pressure tank for electric automobile includes: the box body is internally provided with an electric component accommodating cavity, one side of the box body in the top-bottom direction is provided with an opening, and the opening is provided with a sealing cover; a DCDC converter located in the electrical component receiving cavity; the box body is provided with a lateral box wall parallel to the top-bottom direction, and the DCDC converter is arranged on the lateral box wall; the side face with larger area on the DCDC converter is attached to the inner side face of the lateral box wall so as to transfer heat to the lateral box wall; the outer side of the lateral box wall is provided with a radiator, and the radiator is provided with radiating fins. The DCDC converter sets up on the side direction tank wall, can separately arrange with all the other spare parts in the box, makes the heat distribution in the box disperse more to the outside of the side direction tank wall that is equipped with the DCDC converter is equipped with the radiator, can effectively give off the box outside with the heat more directly and utilize radiating fin to dispel the heat fast, thereby obtains better radiating effect.
Description
Technical Field
The utility model relates to an electric automobile technical field, in particular to high-pressure tank for electric automobile.
Background
At present, the global electric automobile industry develops rapidly. The power battery is used as a guarantee factor of the driving mileage and the safety performance of the electric automobile, and plays an important role in the popularization of the electric automobile in the future. Because the power battery has high voltage and high power, certain danger exists, and the power battery needs to be matched with a high-voltage box for use in order to ensure the safe operation of the electric automobile, the high-voltage box distributes current to each electric loop, the control of each loop is realized through a contactor, and the safety protection of each loop is realized through a fuse and a fuse.
The high-voltage box for the electric automobile comprises a box body, an electric component containing cavity is arranged in the box body, an opening is formed in one side of the top and bottom direction of the box body, and a sealing cover is arranged at the opening. All high-voltage components such as battery management system control panel and contactor, fuse, DCDC converter install and hold the intracavity portion at electric component, because components and parts such as fuse, DCDC converter can produce a large amount of heats in the course of the work, high-voltage box heat dissipation is not good can influence high-voltage components's performance, can damage components and parts when serious to the cost has been increased, after sales maintenance's burden etc. has been increaseed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-pressure tank for electric automobile that heat dispersion is good.
The utility model discloses well high-pressure tank for electric automobile adopts following technical scheme:
high-pressure tank for electric automobile includes:
the box body is internally provided with an electric component accommodating cavity, one side of the box body in the top-bottom direction is provided with an opening, and the opening is provided with a sealing cover;
a DCDC converter located in the electrical component receiving cavity;
the box body is provided with a lateral box wall parallel to the top-bottom direction, and the DCDC converter is arranged on the lateral box wall;
the side face with larger area on the DCDC converter is attached to the inner side face of the lateral box wall so as to transfer heat to the lateral box wall;
high-pressure tank still includes for the electric automobile:
the radiator is arranged on the outer side of the lateral box wall and used for conducting heat on the lateral box wall outwards, and radiating fins are arranged on the radiator.
Has the advantages that: adopt above-mentioned technical scheme, the DCDC converter sets up on the side direction tank wall, can separately arrange with all the other spare parts in the box, makes the heat distribution in the box disperse more to the outside of the side direction tank wall that is equipped with the DCDC converter is equipped with the radiator, can effectively give off the box outside and utilize radiating fin to dispel the heat fast with the heat more directly, thereby obtains better radiating effect.
In a preferred embodiment, the DCDC converter is provided at two or more locations, and the DCDC converter is distributed over at least two lateral tank walls.
Has the advantages that: by adopting the technical scheme, the DCDC converter forms distributed arrangement, so that heat can be dispersed more, and the whole heat generation is more balanced.
As a preferred solution, the DCDC converters are arranged on two oppositely arranged lateral walls of the tank.
Has the advantages that: by adopting the technical scheme, the heat can be distributed better, and more lateral box walls can be utilized to realize larger heat dissipation area and further improve the heat dissipation effect.
As a preferable technical solution, the DCDC converter is located on one side in the width direction of two lateral tank walls arranged opposite to each other;
the box body also comprises a middle side wall, wherein the middle side wall is a side wall connected between two lateral box walls provided with DCDC converters;
and the middle side wall is also provided with a radiator.
Has the advantages that: by adopting the technical scheme, a larger heat dissipation area can be formed, and heat generated by the DCDC converter with concentrated heat productivity is conducted to the outside more quickly.
As a preferred technical solution, the box is a rectangular box, and the DCDC converter is arranged on one side of the rectangular box in the length direction;
still be equipped with the fuse in the box, the fuse sets up the opposite side at rectangle box length direction.
Has the advantages that: by adopting the technical scheme, the fuse and the DCDC converter can be arranged dispersedly, and the balance of the whole heat is more facilitated.
As a preferable aspect, the high-pressure tank for an electric vehicle further includes:
the mounting plate is fixed at the bottom of the electric part accommodating cavity and is a metal plate;
and the insulating support is fixed on the mounting plate, and an electric element is supported and fixed on the insulating support.
Has the advantages that: by adopting the technical scheme, the mounting plate is a metal plate, so that the heat dissipation of the high-pressure box is facilitated; meanwhile, the electric element can be fixed on the mounting plate through the insulating support, and then is fixed in the electric element accommodating cavity in the high-voltage box together with the mounting plate, so that the electric element is convenient to mount, and the firm fixation of the electric element is guaranteed.
As a preferred technical scheme, a heat-conducting silica gel pad is arranged between the DCDC converter and the lateral tank wall.
Has the advantages that: by adopting the technical scheme, the heat conducting silica gel pad can ensure that the heat of the DCDC converter is effectively conducted to the lateral tank wall, and the heat dissipation performance is ensured.
As a preferred technical scheme, a fan mounting groove is formed in the heat dissipation fin, and a heat dissipation fan is arranged in the fan mounting groove.
Has the advantages that: by adopting the technical scheme, the fan mounting groove is arranged, so that the occupied space can be effectively saved, and the high-efficiency heat dissipation is realized while the size is avoided being overlarge.
As a preferred technical solution, the air outlet of the cooling fan faces the root of the cooling fin;
the heat dissipation fan comprises fan blades and a fan blade connecting seat, and the fan blades are arranged on the fan blade connecting seat;
the distance between the air outlet and the root of the radiating fin is not less than the diameter of the fan blade connecting seat.
Has the advantages that: by adopting the technical scheme, the heat dissipation performance can be optimized, and the heat dissipation effect can be better ensured.
As a preferred technical scheme, the radiators on each lateral box wall are provided with more than two parts, including a middle radiator and an outer radiator;
the middle radiator is arranged in the middle of the width direction of the side box wall;
the outer side radiators are arranged on two sides of the width direction of the side box wall;
the intermediate radiator and the outer radiator are arranged at intervals.
Has the advantages that: by adopting the technical scheme, the interval between the middle radiator and the outer radiator can enable the heat to be radiated outwards more quickly, the effective radiating area can be increased, and the radiating capacity can be better ensured.
The above-described preferred embodiments may be adopted alone, or two or more embodiments may be arbitrarily combined when they can be combined, and the embodiments formed by the combination are not specifically described here and are included in the description of the present patent.
Drawings
Fig. 1 is a perspective view of an embodiment of a high-pressure tank for a medium electric vehicle according to the present invention;
FIG. 2 is a front elevational view of the enclosure of FIG. 1, as projected from the top of the enclosure;
fig. 3 is a schematic structural view of a heat sink.
The names of the components corresponding to the corresponding reference numerals in the drawings are: 1-case, 2-case lid, 3-DCDC converter, 4-mounting board, 5-contactor, 6-fuse, 7-BMS module, 8-sealing rubber gasket, 9-radiator, 10-radiating fin, 11-fan mounting slot, 12-radiating fan, 13-fan blade, 14-fan blade connecting base, 15-copper bar, 16-binding wire frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, 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 for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as the terms first and second, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used 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, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
The utility model discloses embodiment 1 of high-voltage box for well electric automobile is as shown in fig. 1 to fig. 3, including box 1 and case lid 2, box 1 and case lid 2 all adopt 5052 aluminum plate to bend the welding and form, have higher coefficient of heat conductivity. Be equipped with the electric component in box 1 and hold the chamber, the electric component holds the intracavity and installs DCDC converter 3, mounting panel 4, contactor 5, fuse 6 and BMS module 7 (battery management system module), and contactor 5, fuse 6 and BMS module 7 are fixed on mounting panel 4. In the orientation shown in fig. 2, the DCDC converter 3 and the contactor 5 are disposed on the left side of the case 1, and the fuse 6 is disposed on the right side of the case 1. The top of the box body 1 is provided with an opening, and the opening is provided with a box cover 2; be equipped with sealed cushion 8 between case lid 2 and the box 1, sealed cushion 8 is used for realizing the sealed between box 1 and the case lid 2, forms confined high-pressure tank, satisfies high-pressure tank's protection requirement. Specifically, a plurality of holes are distributed on the sealing rubber pad 8, the periphery of the box cover 2 is fixed on the box body 1 through combined screws, and the sealing rubber pad 8 is pressed tightly, so that the purpose of sealing is achieved.
The box 1 is box 1 that the cross section is the rectangle, including case diapire and side direction tank wall, and the side direction tank wall and the top bottom direction of box 1 are parallel, and wherein the outside of three side direction tank walls is equipped with radiator 9, is equipped with the connector on another side direction tank wall, and the connector is used for realizing the intercommunication of 1 inside and outside circuit of box. The three lateral box walls provided with the radiator 9 are respectively a front box wall, a rear box wall and a left box wall, the left box wall is connected between the front box wall provided with the DCDC converter 3 and the rear box wall, and the left box wall is close to the DCDC converter 3 in the left and right directions to form a middle side wall.
As shown in fig. 1 and 2, the DCDC converter 3 is provided with two positions, the DCDC converter 3 is distributed on two lateral tank walls which are oppositely arranged in the front-back direction, the DCDC converter 3 is in a rectangular parallelepiped structure, and the side surface with a larger area is attached to the inner side surface of the lateral tank wall to transfer heat to the lateral tank wall. And a heat-conducting silica gel pad is arranged between the DCDC converter 3 and the lateral box wall so as to solve the problem that the heat dissipation is not fully influenced by insufficient contact of the DCDC converter and the lateral box wall. If DCDC converter 3 directly pastes to 1 lateral wall of box, be difficult to abundant contact between the two, partial area direct contact, still can form the air gap between the partial area, the coefficient of heat conductivity of air is 0.01 ~ 0.04W/m.K, the coefficient of heat conductivity of heat conduction silica gel is 1.5 ~ 5.0W/m.K, fill up behind the heat conduction silica gel piece between the two, 3 indirect pastes to 1 lateral wall of box of DCDC converter, there is decurrent pressure DCDC converter 3 in the lateral box wall mounting, the heat conduction silica gel piece produces the deformation under the effect of pressure, so that the two just can abundant contact, the heat of DCDC converter 3 just can be conducted on 1 lateral wall of box very fast.
The radiators 9 on the left box wall are all provided with three positions, including a middle radiator 9 and two side radiators 9; the radiators 9 on the front side box wall and the rear side box wall are provided with four positions, including two middle radiators 9 and two side radiators 9. Each radiator 9 comprises a radiating fin 10, a fan mounting groove 11 is formed in each radiating fin 10 of the intermediate radiator 9, and a radiating fan 12 is arranged in each fan mounting groove 11. As shown in fig. 3, the heat dissipation fan 12 includes a fan blade 13 and a fan blade connection seat 14, the fan blade 13 is fixed on the fan blade connection seat 14, and a distance a between the air outlet and the root of the heat dissipation fin 10 is not less than a diameter b of the fan blade connection seat 14. Research shows that when the distance a between the air outlet of the fan and the root of the radiating fin 10 is the external diameter of the fan, the radiator 9 can achieve the best radiating effect; in view of the limitation of the external dimensions, in order to obtain better capacity of the heat sink 9, the distance a between the air outlet and the root of the heat dissipation fin 10 in this embodiment is not less than the diameter b of the blade connecting seat 14, but less than the external diameter c of the blade. The radiators 9 on each lateral box wall are arranged at intervals, so that air flow is facilitated, and heat dissipation is facilitated. The power supply for the radiator fan 12 may be provided by means of a high-voltage tank, or may be provided by other parts on the vehicle.
Three fuses 6 in the box body 1 are arranged, the three fuses 6 are respectively connected with one contactor 5, and the contactor 5 is used for controlling the on-off of corresponding circuits. The high-voltage box for the electric automobile further comprises a mounting plate 4, wherein the mounting plate 4 is a metal plate and is fixed at the bottom of the electric part accommodating cavity. The mounting plate 4 is provided with an insulating support at the position corresponding to the two ends of each fuse 6, the insulating support is in an inverted T-shaped structure, the bottom of the insulating support is fixed on the mounting plate, and the top of the insulating support is provided with a threaded hole; the two ends of the fuse 6 are provided with screw through holes, and the fuse 6 is fixed on the top of the insulating support through screws penetrating through the screw through holes during assembly. The contact 5 has an insulating housing, by means of which the contact 5 is fixed on the mounting plate 4. The corresponding end of the fuse 6 is connected to the corresponding terminal of the contactor 5 through a copper bar 15. Compare in with contactor 5, fuse 6 etc. electrical component directly fixed to the box diapire on, set up mounting panel 4 and can make electrical component accomplish the installation, convenient assembling in the box outside.
The BMS module 7 is disposed at the left side of the case 1 and between the DCDC converters 3 at two positions in the front-rear direction, does not affect the heat dissipation of the DCDC converters 3, and contributes to making the temperature distribution in the case 1 more uniform.
During the assembly, contactor 5, fuse 6 and BMS module 7 pass through the fix with screw on mounting panel 4 in advance, and mounting panel 4 forms the mount pad, forms the bottom plate subassembly with contactor 5, fuse 6 etc. jointly, then installs the bottom plate subassembly in the bottom of box 1. The inner side of the lateral box wall is also provided with a binding frame 16, the binding frame 16 is in a shape of a Chinese character 'ji', the folded edges at the two sides of the bottom are fixed on the lateral box wall, and the signal wires and other wire routing of the contactor 5, the fuse 6 and the BMS module 7 can be fixed on the binding frame 16 by utilizing the binding wires.
When the heat dissipation box is used, the box cover 2 is sealed and covered on the box body 1 in a sealing mode, heat generated when all electrical elements inside the box body 1 are electrified is conducted to the box body 1 and the box cover 2 through air in the box body 1 and then conducted to the radiator 9, and the heat is dissipated to the external environment through the radiator 9, so that the purpose of rapid heat dissipation is achieved.
The utility model discloses embodiment 2 of high-voltage box for well electric automobile:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the DCDC converter 3 is provided with two positions, which are respectively located on two lateral tank walls arranged opposite to each other; in the present embodiment, the DCDC converter 3 is provided at only one location.
Of course, in other embodiments, when more than two DCDC converters 3 are provided, each DCDC converter 3 may also be located on the lateral wall on the same side of the tank 1, or distributed on the adjacent lateral walls.
The utility model discloses embodiment 3 of high-voltage box for well electric automobile:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the radiators 9 are distributed on three lateral tank walls, whereas in the present embodiment, the radiator 9 is provided on the lateral tank wall on which only the DCDC converter 3 is provided.
The utility model discloses well embodiment 4 of high-pressure tank for electric automobile:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the DCDC converter 3 and the fuse 6 are respectively provided on both sides of the case 1; in the present embodiment, two DCDC converters 3 are respectively disposed on both sides of the case 1, and the fuse 6 is disposed between the two DCDC converters 3.
Of course, in other embodiments, the DCDC converter 3 and the fuse 6 may be arranged in other manners, for example, the DCDC converter 3 is only provided at one position on the left wall, and the fuse 6 is provided on the right side of the box 1.
The utility model discloses well embodiment 5 of high-pressure tank for electric automobile:
the difference between the present embodiment and embodiment 1 is that in embodiment 1, there are more than two radiators 9 on each lateral tank wall, and each radiator 9 is arranged at intervals; in the present embodiment, only one radiator 9 is disposed on each lateral box wall, and the radiator is an integral radiator 9 which is distributed over the entire lateral box wall.
The utility model discloses embodiment 6 of high-voltage box for well electric automobile:
the present embodiment differs from embodiment 1 in that in embodiment 1, the radiator 9 is mounted independently to the lateral tank wall, and in other embodiments, the radiator 9 may be provided integrally with the lateral tank wall.
The utility model discloses embodiment 7 of high-voltage box for well electric automobile:
the present embodiment is different from embodiment 1 in that, in embodiment 1, a fan mounting groove 11 is provided on a heat sink 9, and a heat dissipation fan 12 is provided in the fan mounting groove 11; in the present embodiment, the heat dissipation fan 12 is disposed outside the heat dissipation fin 10. Of course, in other embodiments, the heat dissipation fan 12 may not be provided in case the heat dissipation capability is sufficient.
The above description is only a preferred embodiment of the present application, and not intended to limit the present application, and the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.
Claims (10)
1. High-pressure tank for electric automobile includes:
the box body is internally provided with an electric component accommodating cavity, one side of the box body in the top-bottom direction is provided with an opening, and the opening is provided with a sealing cover;
a DCDC converter located in the electrical component receiving cavity;
it is characterized in that the preparation method is characterized in that,
the box body is provided with a lateral box wall parallel to the top-bottom direction, and the DCDC converter is arranged on the lateral box wall;
the side face with larger area on the DCDC converter is attached to the inner side face of the lateral box wall so as to transfer heat to the lateral box wall;
high-pressure tank still includes for the electric automobile:
the radiator is arranged on the outer side of the lateral box wall and used for conducting heat on the lateral box wall outwards, and radiating fins are arranged on the radiator.
2. The high-pressure tank for an electric vehicle according to claim 1, wherein the DCDC converter is provided at two or more locations, and the DCDC converter is distributed on at least two lateral tank walls.
3. High-pressure tank for electric vehicles according to claim 2, characterized in that the DCDC converter is provided on two oppositely arranged lateral tank walls of the tank.
4. The high-pressure tank for an electric vehicle according to claim 3, wherein the DCDC converter is located on one widthwise side of two oppositely disposed lateral tank walls;
the box body also comprises a middle side wall, wherein the middle side wall is a side wall connected between two lateral box walls provided with DCDC converters;
and the middle side wall is also provided with a radiator.
5. The high-voltage box for the electric vehicle as claimed in any one of claims 1 to 4, wherein the box is a rectangular box, and the DCDC converter is disposed on one side in a length direction of the rectangular box;
still be equipped with the fuse in the box, the fuse sets up the opposite side at rectangle box length direction.
6. The high-pressure tank for an electric vehicle according to any one of claims 1 to 4, characterized by further comprising:
the mounting plate is fixed at the bottom of the electric part accommodating cavity and is a metal plate;
and the insulating support is fixed on the mounting plate, and an electric element is supported and fixed on the insulating support.
7. The high-pressure tank for the electric vehicle as claimed in any one of claims 1 to 4, wherein a heat-conducting silicone gasket is provided between the DCDC converter and the lateral tank wall.
8. The high pressure tank for the electric vehicle as claimed in any one of claims 1 to 4, wherein a fan mounting groove is provided on the heat dissipating fin, and a heat dissipating fan is provided in the fan mounting groove.
9. The high pressure tank for an electric vehicle according to claim 8, wherein an air outlet of the heat dissipation fan faces a root of the heat dissipation fin;
the heat dissipation fan comprises fan blades and a fan blade connecting seat, and the fan blades are arranged on the fan blade connecting seat;
the distance between the air outlet and the root of the radiating fin is not less than the diameter of the fan blade connecting seat.
10. The high-pressure tank for the electric vehicle as claimed in claim 8, wherein the radiators on each lateral tank wall are provided at two or more positions, including a middle radiator and an outer radiator;
the middle radiator is arranged in the middle of the width direction of the side box wall;
the outer side radiators are arranged on two sides of the width direction of the side box wall;
the intermediate radiator and the outer radiator are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020499473.1U CN211671135U (en) | 2020-04-08 | 2020-04-08 | High-pressure box for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020499473.1U CN211671135U (en) | 2020-04-08 | 2020-04-08 | High-pressure box for electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN211671135U true CN211671135U (en) | 2020-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020499473.1U Active CN211671135U (en) | 2020-04-08 | 2020-04-08 | High-pressure box for electric automobile |
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| Country | Link |
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| CN (1) | CN211671135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4059781A1 (en) * | 2021-03-16 | 2022-09-21 | Renault s.a.s | Housing for electrical components of a motor vehicle |
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2020
- 2020-04-08 CN CN202020499473.1U patent/CN211671135U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4059781A1 (en) * | 2021-03-16 | 2022-09-21 | Renault s.a.s | Housing for electrical components of a motor vehicle |
| FR3120832A1 (en) * | 2021-03-16 | 2022-09-23 | Renault S.A.S. | Housing for electrical components of a motor vehicle. |
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