CN109455093B - High-voltage control box for electric automobile - Google Patents
High-voltage control box for electric automobile Download PDFInfo
- Publication number
- CN109455093B CN109455093B CN201811307675.5A CN201811307675A CN109455093B CN 109455093 B CN109455093 B CN 109455093B CN 201811307675 A CN201811307675 A CN 201811307675A CN 109455093 B CN109455093 B CN 109455093B
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- vertical components
- components
- voltage
- fuse
- control box
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- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
- H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
- H05K5/006—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by features for holding the PCB within the housing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
The invention relates to a high-voltage control box for an electric automobile, which directly uses vertical components arranged on a lower layer to support a laminated busbar (comprising horizontal components) arranged on an upper layer, and omits other structures for supporting the laminated busbar so as to realize light weight. But also the space available inside is greater. The invention reduces the wire connection, can also ensure that the corresponding leading-out terminal pins are connected in the shortest distance, and the shorter size can improve the strength of the leading-out terminal pins and ensure the effectiveness and the service life of the connection. A larger suspension space is formed below the suspension laminated busbar, so that the suspension laminated busbar can be used for laying out other components; meanwhile, a yielding space is provided for larger horizontal components on the laminated busbar. On a fixed support in the suspending space, the low-voltage connector and/or the wire harness fixer can be disassembled and changed in position, so that the diversity of product implementation is improved, the early design difficulty is reduced, and the later maintenance cost is reduced; but also high-low pressure separation can be more easily achieved.
Description
Technical Field
The invention relates to the field of electrical control, in particular to a high-voltage control box for an electric automobile.
Background
The only source of the driving energy of the pure electric vehicle is a power storage battery, and the high-voltage control box is used for controlling and protecting the safety of the high-voltage circuit. The main components of the high-voltage control box comprise a high-voltage direct-current relay, a fuse, copper bar connection, a high-voltage wire harness, a low-voltage wire harness and the like, and part of the high-voltage control box further comprises a BMS (battery management system), a Hall sensor, a pre-charging resistor, a current divider and the like.
Because of the different electrical principles of the whole vehicle, different structural arrangements and different control strategies, each high-voltage control box is a fixed product; however, the same is true for the purpose of miniaturization and compactification of products.
Chinese patent application 20122055998.8 discloses a layering high voltage distribution box, including the block terminal main part, the flat block terminal main part includes lower floor's backup pad and upper backup pad, be equipped with a plurality of support posts between lower floor's backup pad and the upper backup pad.
The utility model realizes the purpose of miniaturization through a layered structure, but the arrangement of the supporting upright post still needs a position, and the miniaturization degree is not high; and the heights of the supporting columns are required to be compromised, and each supporting column is required to be higher than the highest lower component, so that a large amount of materials are increased, and the weight reduction of the product is not facilitated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-voltage control box for an electric automobile, which is capable of further compressing the volume in the longitudinal direction and the transverse direction and is further light.
The technical scheme of the invention is as follows:
The utility model provides a high pressure control box for electric automobile, includes casing, a plurality of vertical components and parts, horizontal components and parts, with vertical setting in the casing inner bottom, with horizontal components and parts horizontal setting in the female row of stromatolite, stromatolite is female to be used vertical components and parts as the support, sets up in the top surface of vertical components and parts to be connected with vertical components and parts through leading-out terminal pin.
Preferably, the steps are arranged on the inner bottom of the shell corresponding to the vertical components, the vertical components are arranged on the corresponding steps, and the height of the conductive part of each vertical component is consistent through the height of the corresponding steps.
Preferably, the vertical component is arranged at a position close to the side wall of the shell on the inner bottom of the shell, a suspension space is formed below the suspended laminated busbar through the vertical component, a fixing support is arranged on the inner bottom of the shell within the suspension space, and a low-voltage connector and/or a wire harness fixer are arranged on the fixing support.
Preferably, the fixing bracket is provided with a plurality of insertion holes, and the low-voltage connector and the wire harness fixer are detachably and positionally changeable mounted on the insertion holes through insertion rods.
Preferably, the laminated busbar matched to form the suspension space is provided with a yielding opening, and the lower part of the horizontal component is sunk into the suspension space below the laminated busbar through the yielding opening.
Preferably, the vertical component is a plurality of relays with vertical structures, and the horizontal component is a plurality of fuses with horizontal structures.
Preferably, the relay is a high-voltage component and comprises a main relay, a plurality of PTC relays, a charging relay and a pre-charging relay; the low-voltage connector comprises a main positive connector, a plurality of PTC connectors, a charging connector and a pre-charging connector corresponding to the relay; the fuse is a low-voltage component and comprises a main fuse, a PTC fuse, an air conditioner fuse, a slow charging fuse and a DCDC fuse.
Preferably, the high-voltage input/output connection point which is not directly connected with the horizontal component is fixed through an insulating column arranged at the inner bottom of the shell.
Preferably, the insulating column is screwed to the housing by means of a screw thread section at the bottom.
The beneficial effects of the invention are as follows:
according to the high-voltage control box for the electric automobile, the vertical components arranged on the lower layer are directly used for supporting the laminated busbar (including the horizontal components) arranged on the upper layer, other structures for supporting the laminated busbar are omitted, and the space for planning and arranging the supporting columns is not needed in the shell, so that the components can be more tightly laid out, the material use is reduced, and the weight reduction is further realized. And after the redundant parts are removed, the internal structure of the product is simpler, the available space is larger, and the problem of structural damage such as support column breakage is solved. The invention directly stacks the laminated busbar on the top surface of the vertical component, reduces wire connection, can ensure that the corresponding leading-out terminal pins are connected at the shortest distance, and can improve the strength of the leading-out terminal pins by a shorter size, thereby ensuring the effectiveness and the service life of connection.
When the vertical components arranged on the lower layer are arranged at four corners or side positions of the shell, a larger suspension space is formed below the suspended laminated busbar, and the vertical components can be used for laying out other components; meanwhile, a space for giving way is provided for larger horizontal components on the laminated busbar, so that a part of the volume of the horizontal components is sunk into the suspension space, and the miniaturization effect is improved in the thickness direction. And the stability of the laminated busbar is enhanced, if the laminated busbar is not arranged at four corners, the laminated busbar is easy to shake, and then the laminated busbar is cracked, or horizontal components on the laminated busbar are cracked due to overlarge shake.
On a fixed support in the suspending space, the low-voltage connector and/or the wire harness fixer can be disassembled and changed in position, so that the position can be replaced or adjusted according to implementation requirements, the diversity of product implementation is improved, the early design difficulty is reduced, and the later maintenance cost is reduced; but also high-low pressure separation can be more easily achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a top view of the internal structure of the present invention;
Fig. 4 is an assembly schematic of the internal structure (the housing only shows the bottom surface);
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a schematic view of the structure of the inner bottom of the housing (showing the harness anchor);
FIG. 7 is an assembled schematic view of a vertical component and a fixture bracket (showing a wire harness fixture);
FIG. 8 is an assembly schematic of the underlying components;
In the figure: 10 is an upper cover, 11 is a base, 111 is a step, 112 is an insulating column, 20 is a vertical component, 21 is a horizontal component, 22 is a laminated busbar, 221 is a yielding opening, 23 is a leading-out terminal pin, 24 is a fixing bracket, 241 is an insertion hole, 25 is a low-voltage connector, 26 is a wire harness fixer, and 27 is a high-voltage input-output connection point.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The invention provides the high-voltage control box for the electric automobile, which solves the defects of small size, low light weight, complex internal structure and the like of products in the prior art, overcomes the technical bias in the prior art, cancels a support column for supporting an upper component, directly replaces the support column with a lower component below the support column, reduces the internal structure, achieves the aims of reducing the whole volume and the material consumption, and achieves the effects of further miniaturization and light weight.
As shown in fig. 1,2, 3, 4 and 5, the high-voltage control box for an electric automobile according to the present invention includes a housing (in this embodiment, the high-voltage control box includes an upper cover 10 and a base 11), a plurality of vertical components 20 and a horizontal component 21, wherein the vertical components 20 are vertically disposed at an inner bottom of the housing (in this embodiment, the inner bottom of the base 11), the horizontal components 21 are horizontally disposed at a laminated busbar 22, and the laminated busbar 22 is supported by the vertical components 20, is disposed at a top surface of the vertical components 20, and is connected with the vertical components 20 through a lead pin 23. When the vertical component 20 is used for directly supporting the laminated busbar 22, other structures for supporting the laminated busbar 22 can be omitted, on one hand, space is not necessarily required to be planned for the conventional supporting structures, so that the layout of the vertical component 20 can be more compact, and the miniaturization effect of products is improved; on the other hand, the material consumption is necessarily reduced, the size of the shell can be made smaller, the conventional supporting structures are omitted, and the light weight effect is doubly enhanced in two thinking ways.
Because the volumes of the horizontal components 21 are different, the horizontal components 21 of a part of models still have higher height when being arranged horizontally, and the miniaturization of products can be affected. In order to reduce the influence of the large-size horizontal component 21 on the miniaturization of the product, in the embodiment, the laminated busbar 22 matched with the formation of the suspension space is provided with the yielding opening 221, and the lower part of the horizontal component 21 is sunk into the suspension space below the laminated busbar 22 through the yielding opening 221, so that the suspension space is reasonably utilized, the overall height is reduced, the miniaturization of the product is ensured, and meanwhile, the wiring difficulty is also reduced.
In this embodiment, the vertical component 20 is a plurality of relays having a vertical structure, and the horizontal component 21 is a plurality of fuses having a horizontal structure. Specifically, the relay is a high-voltage component, including a main relay, a plurality of PTC relays, a charging relay, a pre-charging relay, or others; the low voltage connector 25 includes a total positive connector, several PTC connectors, a charging connector, a pre-charging connector, or others, corresponding to the relay; the fuse is a low voltage component, including a main fuse, PTC fuse, air conditioning fuse, slow charge fuse, DCDC fuse, or others.
The laminated busbar 22 is directly overlapped on the top surface of the vertical component 20, so that wire connection is reduced, the corresponding lead-out pins 23 can be ensured to be connected at the shortest distance, the strength of the lead-out pins 23 can be improved by the shorter size, and the connection effectiveness and service life are ensured. The high-voltage input/output connection point 27 which is not directly connected with the horizontal component 21 is in a suspended state, such as a communication pin corresponding to an interface of a communication cable, for example, a positive electrode inlet direction and a negative electrode outlet direction for connecting an external power supply and a motor, and is fixed through an insulating column 112 arranged at the inner bottom of the shell to ensure the connection strength, so that the connection strength of the suspended high-voltage input/output connection point 27 is improved. In this embodiment, the insulating column 112 is screwed and fixed to the housing by a threaded section at the bottom.
One of the purposes of the conventional support structure in the prior art is to ensure that the busbar carrying the upper components can be arranged as horizontally as possible. While the present invention omits the conventional support structure but still needs to achieve this, the underlying vertical component 20 needs to be adjusted by structural design to achieve a substantially uniform height of its conductive portions. That is, as shown in fig. 6, the steps 111 are provided on the inside of the case corresponding to the vertical components 20, the vertical components 20 are provided on the corresponding steps 111, and the height of the guide portions of each vertical component 20 is uniform by the height of the corresponding steps 111, and the height is substantially the same. The present invention provides steps 111 of different heights for each vertical component 20 such that the conductive portion of each vertical component 20 is approximately the same as the overall height of the mating steps 111 to achieve a horizontal arrangement of the stacked busbar 22.
As shown in fig. 7 and 8, in order to ensure both miniaturization of the product and effective accommodation of the internal components, the vertical components 20 are disposed on the inner bottom of the housing at positions close to the side walls of the housing, for example, at four corners or close to the side walls in the housing, so that a space is defined between the vertical components 20. The size of this space need only be sufficient to accommodate the components for which the design is intended. A suspending space is formed below the suspending laminated busbar 22 by the vertical component 20, a fixing bracket 24 is arranged at the inner bottom of the shell in the range of the suspending space, and a low-voltage connector 25 and/or a wire harness fixer 26 are arranged on the fixing bracket 24. The low voltage connector 25 is used for connecting low voltage components, and the harness holder 26 is used for binding corresponding harnesses.
In order to increase the versatility of the fixing bracket 24, the fixing bracket 24 is provided with a plurality of insertion holes 241, and the low voltage connector 25 and the harness holder 26 are detachably and positionally changeable mounted to the insertion holes 241 by means of insertion rods. When the low-voltage connector 25 and the wire harness fixer 26 can be disassembled and assembled on the fixed bracket 24 and the positions of the low-voltage connector and the wire harness fixer can be changed, the diversity of product implementation can be improved, the early design difficulty is reduced, and the later maintenance cost is reduced; but also high-low pressure separation can be more easily achieved.
The above examples are only for illustrating the present invention and are not to be construed as limiting the invention. Variations, modifications, etc. of the above-described embodiments are intended to fall within the scope of the claims of the present invention, as long as they are in accordance with the technical spirit of the present invention.
Claims (4)
1. The utility model provides a high voltage control box for electric automobile, which comprises a housin, a plurality of vertical components, horizontal components, a serial communication port, vertical components is located the casing inner bottom with vertical components is provided with the step with vertical components corresponds in the casing inner bottom, vertical components sets up on corresponding step, every vertical components passes through the height of corresponding step, realize the height uniformity of the electrically conductive part of every vertical components, horizontal components is horizontal to be set up in the female row of stromatolite, the female row of stromatolite uses vertical components as the support, set up in the top surface of vertical components, and be connected with vertical components through leading-out foot, vertical components is laid out in the position near the casing lateral wall on the casing inner bottom, realize the unsettled space below the female row of stromatolite through vertical components, be provided with the fixed bolster in unsettled space scope's casing inner bottom, set up low voltage connector and/or pencil fixer on the fixed bolster, low voltage connector and pencil fixer pass through the inserted bar detachable, the position ground is installed in the jack, the stromatolite female row of cooperation formation space is provided with and is put down the opening, the horizontal components is a plurality of vertical components of fuse structures of the unsettled structure.
2. The high-voltage control box for an electric vehicle according to claim 1, wherein the relay is a high-voltage component including a main relay, a plurality of PTC relays, a charging relay, a pre-charging relay; the low-voltage connector comprises a main positive connector, a plurality of PTC connectors, a charging connector and a pre-charging connector corresponding to the relay; the fuse is a low-voltage component and comprises a main fuse, a PTC fuse, an air conditioner fuse, a slow charging fuse and a DCDC fuse.
3. The high-voltage control box for an electric vehicle according to claim 1, wherein the high-voltage input/output connection point which is not directly connected to the horizontal component is fixed by an insulating column provided at an inner bottom of the case.
4. The high-voltage control box for an electric vehicle according to claim 3, wherein the insulating column is screwed and fixed with the housing through a threaded section at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811307675.5A CN109455093B (en) | 2018-11-05 | 2018-11-05 | High-voltage control box for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811307675.5A CN109455093B (en) | 2018-11-05 | 2018-11-05 | High-voltage control box for electric automobile |
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| Publication Number | Publication Date |
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| CN109455093A CN109455093A (en) | 2019-03-12 |
| CN109455093B true CN109455093B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811307675.5A Active CN109455093B (en) | 2018-11-05 | 2018-11-05 | High-voltage control box for electric automobile |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110536572B (en) * | 2019-10-10 | 2024-09-24 | 北京普莱德新能源电池科技有限公司 | An electrical box |
| CN111987372B (en) * | 2020-07-21 | 2024-03-26 | 威睿电动汽车技术(宁波)有限公司 | Battery pack circuit breaking unit structure of electric automobile and vehicle |
| CN112554270A (en) * | 2020-12-11 | 2021-03-26 | 国机重工集团常林有限公司 | Compact electric excavator vehicle body arrangement structure |
| CN114679856B (en) * | 2022-03-23 | 2024-01-30 | 中国北方车辆研究所 | Small-sized comprehensive control box suitable for remote programming control and application method thereof |
| CN116638968A (en) * | 2023-05-30 | 2023-08-25 | 江苏由甲申田新能源科技有限公司 | A small-volume high-voltage distribution box structure and manufacturing method thereof |
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| CN209141911U (en) * | 2018-11-05 | 2019-07-23 | 浙江宏舟新能源科技有限公司 | A kind of high voltage control box for electric vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9550425B2 (en) * | 2012-06-13 | 2017-01-24 | Hitachi Automotive Systems, Ltd. | Electric storage device for vehicle deployment |
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2018
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| JP2005184929A (en) * | 2003-12-17 | 2005-07-07 | Sumitomo Wiring Syst Ltd | Power distribution unit |
| CN101939884A (en) * | 2007-12-21 | 2011-01-05 | 矢崎总业株式会社 | Assembly structure of bus bar block |
| WO2013183499A1 (en) * | 2012-06-05 | 2013-12-12 | 日産自動車株式会社 | Layout structure for electronic-control-system elements for electric vehicle |
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| CN109455093A (en) | 2019-03-12 |
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