CN212473336U - High-voltage distribution box - Google Patents
High-voltage distribution box Download PDFInfo
- Publication number
- CN212473336U CN212473336U CN202020673138.9U CN202020673138U CN212473336U CN 212473336 U CN212473336 U CN 212473336U CN 202020673138 U CN202020673138 U CN 202020673138U CN 212473336 U CN212473336 U CN 212473336U
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- Prior art keywords
- connector
- ptc
- insurance
- voltage distribution
- dcdc
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- 238000009826 distribution Methods 0.000 title claims abstract description 39
- 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 abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 44
- 229910052802 copper Inorganic materials 0.000 claims description 44
- 239000010949 copper Substances 0.000 claims description 44
- 238000004891 communication Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000004378 air conditioning Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model provides a high voltage distribution box for electric automobile, high voltage distribution box includes the box, and is located the inside circuit element of box, circuit element corresponds and forms motor circuit, charging circuit, DCDC return circuit, air conditioner return circuit and PTC return circuit after connecting, circuit element is including being located integrated control board, main relay, the main safety device of the bottom plate top of box, and be located connecting device on the curb plate of box, integrated control board includes printed circuit board, and is located on the printed circuit board with the vice safety device that connecting device corresponds respectively, still including being located MOS pipe on the printed circuit board, the MOS pipe is vice relay. The high-voltage distribution box has the advantages of small internal structure space, simple and reliable assembly process and high assembly efficiency, and can be well suitable for the power battery system of the electric automobile.
Description
Technical Field
The utility model relates to an electric automobile technical field, in particular to high voltage distribution box.
Background
The state is popularizing new energy electric vehicles, and the market occupation is promoted year by year. The high-voltage distribution box is used as an important part of high-voltage distribution of a new energy automobile, the cost proportion occupied in the new energy automobile is large, and along with the removal and the supplement of a new energy subsidy policy in 2019, the finding of a low-cost circuit and a structural design optimization method is particularly important.
The high-voltage distribution box of the prior electric automobile has the following defects: the circuit is built by the copper bars or the busbars, the structure space is large, the assembly process is complex, the efficiency is low, the cost is high, and the circuit is not suitable for batch production of the existing electric automobile system.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing an equipment space occupies for a short time, the high tension switchgear that simple structure is feasible.
A high-voltage distribution box for an electric automobile comprises a box body and a circuit element positioned in the box body, the box body comprises a bottom plate, a side plate which is connected with the bottom plate and extends upwards, and a cover plate which is positioned above the side plate, the circuit elements are correspondingly connected to form a motor loop, a charging loop, a DCDC loop, an air conditioning loop and a PTC loop, the circuit element comprises an integrated control board, a main relay, a main safety device and a connecting device, the integrated control board, the main relay and the main safety device are fixed on the bottom plate, the connecting device is fixed on the side plate, the integrated control plate is provided with a printed circuit board, a secondary safety device and an MOS tube, the printed circuit board is provided with a load connection circuit, the auxiliary safety device is correspondingly connected with part of the connecting device, and the MOS tube is an auxiliary relay.
In the scheme, the motor loop, the charging loop, the DCDC loop, the air conditioner loop, the PTC loop and the like which are arranged in the high-voltage distribution box can ensure the input and the output of electric energy in the distribution box, provide energy for the operation of the electric automobile, the auxiliary relay is replaced by the MOS tube, lines required by the formation of each loop are built by one printed circuit board, the structure space is small, the assembly process is simple and reliable, the assembly efficiency is high, and the high-voltage distribution box can be well suitable for a power battery system of the electric automobile.
Further, be equipped with in the box and be used for connecting circuit element's first anodal copper bar, the anodal copper bar of second, the anodal copper bar of third and first negative pole copper bar, connecting device includes that positive connector of battery, battery burden connector, PTC connector, the positive connector of motor, motor burden connector, communication connector, air conditioner connector, fill/DCDC connector slowly, the both ends of vice insurance device are equipped with the erection terminal respectively, vice insurance device is including charging insurance, PTC insurance, DCDC insurance, air conditioner insurance.
Further, the positive connector of the battery is connected with the main fuse device through the first positive copper bar, the main fuse device is connected with the main relay through the second positive copper bar, the main relay is connected with the positive connector of the motor through the third positive copper bar, and the negative connector of the battery is connected with the negative connector of the motor through the third positive copper bar.
Further, first positive copper bar is equipped with first trompil, the erection terminal of the insurance one end that charges inserts in the first trompil, the MOS pipe is including the MOS that charges, be equipped with first connecting circuit in the printed circuit board, the insurance that charges passes through first connecting circuit with the MOS electric connection that charges, the erection terminal of the insurance other end that charges with fill slowly/DCDC connector connects.
Further, the air conditioner fuse is connected to the air conditioner connector through the first connection line.
Furthermore, the first positive copper bar is provided with a second opening, the mounting terminal at one end of the PTC fuse is connected into the second opening, the MOS tube comprises a PTC-MOS, a second connecting circuit is arranged in the printed circuit board, the PTC fuse is electrically connected with the PTC-MOS through the second connecting circuit, and the mounting terminal at the other end of the PTC fuse is connected with the PTC connector.
Further, the PTC-MOS comprises a first PTC-MOS tube and a second PTC-MOS tube.
Further, first positive copper bar is equipped with the third trompil, the erection terminal of DCDC insurance one end inserts in the third trompil, the MOS pipe includes DCDC-MOS, be equipped with third interconnecting link in the printed circuit board, the DCDC insurance passes through third interconnecting link with DCDC-MOS electric connection, the erection terminal of the DCDC insurance other end with fill slowly/DCDC connector is connected.
Furthermore, the bottom plate is provided with a supporting seat, the placing plate is fixedly connected with the supporting seat, and the integrated control panel, the main relay and the main safety device are fixed on the placing plate.
Furthermore, the printed circuit board is provided with heat-conducting silica gel.
Drawings
Fig. 1 is a schematic structural view of one side of a side plate of a high voltage distribution box according to the present invention;
fig. 2 is a schematic structural view of the other side of the side plate of the middle and high voltage distribution box of the present invention;
fig. 3 is a schematic structural view of the placing plate of the high voltage distribution box of the present invention;
fig. 4 is the utility model discloses the printed circuit board's of well high voltage distribution box structural schematic.
Description of the symbols of the main elements
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1 | Battery |
2 |
| Negative connector of |
3 | |
4 |
| Motor |
5 | Negative connector of |
6 |
| |
7 | Air conditioner connector | 8 |
| Slow charging/DCDC connector | 9 | |
10 |
| |
11 | First |
12 |
| Second |
13 | Third |
14 |
| First negative |
15 | Printed |
16 |
| |
17 | |
18 |
| |
19 | Air- |
20 |
| |
21 | |
22 |
| |
23 |
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element 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 present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, a high voltage distribution box according to an embodiment of the present invention is shown, which is used for an electric vehicle, and includes a box body 1, and circuit components located inside the box body 1, the circuit components are correspondingly connected to form a motor circuit, a charging circuit, a DCDC (which means that a high voltage (low voltage) dc power source is converted into a low voltage (high voltage) dc power source), an air conditioning circuit, and a PTC (Positive Temperature Coefficient, which means a semiconductor material or component with a large Positive Temperature Coefficient) circuit, the circuit components include an integrated control board located above a bottom plate of the box body 1, a main relay 11, a main safety device 10, and connecting devices located on side plates of the box body 1, the integrated control board includes a printed circuit board 16, and auxiliary safety devices located on the printed circuit board 16 and corresponding to the connecting devices respectively, the printed circuit board 16 further comprises an MOS Transistor 22 (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET for short) on the printed circuit board 16, the MOS Transistor 22 is a sub-relay, the printed circuit board 16 is further provided with a welding terminal 21, and one side of each MOS Transistor 22 is correspondingly provided with one welding terminal 21.
The case 1 further includes a cover plate, the circuit components are accommodated in the case 1 and then closed by the cover plate, the integrated control board is mounted above the bottom plate of the case 1, and the integrated control board includes a Printed circuit board 16 (Printed circuit boards, hereinafter referred to as "PCB"). The circuit elements are connected to form a motor circuit, a charging circuit, a DCDC circuit, an air conditioning circuit, and a PTC circuit, as will be appreciated, the formation of these circuits requires wiring to the printed circuit board 16. The relay is an electric control device, plays effect such as automatically regulated, safety protection, converting circuit in the circuit, the utility model discloses in according to the difference of each return circuit demand, set up main relay 11 and auxiliary relay to use MOS pipe 22 as auxiliary relay, saved the space, make each circuit element more smooth and easy in arranging of box 1. The main fuse device 10 also protects its corresponding circuit.
The motor loop, the charging loop, the DCDC loop, the air conditioner loop, the PTC loop and the like which are arranged in the high-voltage distribution box can ensure the input and the output of electric energy in the distribution box, provide energy for the operation of an electric automobile, the auxiliary relay is replaced by the MOS tube 22, all the loops form a required circuit and are built by the printed circuit board 16, the structure space is small, the assembly process is simple and reliable, the assembly efficiency is high, and the electric automobile power battery system can be well suitable for the electric automobile power battery system.
Concretely, about the circuit element in the box 1, be equipped with in the box 1 and be used for connecting circuit element's first anodal copper bar 12, the anodal copper bar 13 of second, the anodal copper bar 14 of third and first negative pole copper bar 15, connecting device includes that positive connector 2 of battery, battery burden connector 3, PTC connector 4, the positive connector 5 of motor, motor burden connector 6, communication connector 7, air conditioner connector 8, fill slowly/DCDC connector 9, the both ends of vice insurance device are equipped with mounting terminal 23 respectively, vice insurance device is including charge insurance 17, PTC insurance 18, DCDC insurance 19, air conditioner insurance 20.
The motor positive connector 5 and the motor negative connector 6 correspond to a motor loop, the air conditioner connector 8 corresponds to an air conditioner loop, the slow charging/DCDC connector 9 corresponds to a charging loop and a DCDC loop, and the PTC connector 4 corresponds to a PTC loop.
Specifically, regarding the motor circuit, the battery positive connector 2 passes through the access of first positive copper bar 12 main safety device 10, main safety device 10 passes through the access of second positive copper bar 13 main relay 11, main relay 11 passes through the access of third positive copper bar 14 motor positive connector 5, battery negative connector 3 passes through the access of third positive copper bar 14 motor negative connector 6. The motor circuit is an important circuit in this high-voltage distribution box, which is connected to the starting mechanism in the vehicle. In the box 1, main relay 11 is fixed in box 1 bottom plate top, is equipped with the unfilled corner on the integrated control board, and main relay 11 just settles in unfilled corner department. The motor loop is connected with a motor in the vehicle so as to provide power for the motor, and is a main power output line in the high-voltage distribution box.
Regarding the charging circuit, first positive copper bar 12 is equipped with first trompil, the erection terminal 23 of insurance 17 one end that charges inserts in the first trompil, MOS pipe 22 is including the MOS that charges, be equipped with first connecting circuit in the printed circuit board 16, the insurance 17 that charges passes through first connecting circuit with the MOS electric connection that charges, the erection terminal 23 of the insurance 17 other end that charges with fill slowly/DCDC connector 9 connects. The charging loop is connected with an external power supply, is an energy input line of the whole high-voltage distribution box and is used for conveying electric energy to the whole high-voltage distribution box.
As for the air conditioning circuit, the air conditioning fuse 20 is connected into the air conditioning connector 8 through the first connection line. The air conditioning loop is connected with an air conditioner of the vehicle to provide electric energy for the operation of the air conditioner in the vehicle.
Regarding the PTC loop, the first positive copper bar 12 is provided with a second opening, the mounting terminal 23 at one end of the PTC fuse 18 is connected to the second opening, the MOS tube 22 includes a PTC-MOS, the printed circuit board 16 is provided with a second connection circuit, the PTC fuse 18 is electrically connected to the PTC-MOS through the second connection circuit, and the mounting terminal 23 at the other end of the PTC fuse 18 is connected to the PTC connector 4. The PTC circuit belongs to a protection circuit.
Specifically, the PTC-MOS includes a first PTC-MOS transistor 22 and a second PTC-MOS transistor 22. Therefore, the PTC loop includes a first branch and a second branch, the first branch is connected in series with the first PTC-MOS tube 22, and the second branch is connected in series with the second PTC-MOS tube 22.
Regarding the DCDC loop, the first positive copper bar 12 is provided with a third opening, the mounting terminal 23 at one end of the DCDC fuse 19 is connected to the third opening, the MOS tube 22 includes a DCDC-MOS, a third connection line is provided in the printed circuit board 16, the DCDC fuse 19 is electrically connected to the DCDC-MOS through the third connection line, and the mounting terminal 23 at the other end of the DCDC fuse 19 is connected to the slow charging/DCDC connector 9. The DCDC loop plays a crucial role in the conversion of electrical energy in the switchgear.
In addition, regarding the structure in the box body 1, a support seat is arranged on the bottom plate, a placing plate is fixedly connected with the support seat, and the integrated control board, the main relay 11 and the main safety device 10 are fixed on the placing plate. The figure of supporting seat is four, be located four angles of box 1 bottom plate respectively, place the board and arrange the supporting seat in on, because the supporting seat has certain height, place just can produce certain distance with the bottom plate after the board is placed, further make to place and have certain distance between the integrated control board on placing the board and the bottom plate, this kind of structure has played certain guard action to the integrated control board, avoids the circuit element on the integrated control board to produce the skew because striking or vibrations and influences this high voltage distribution box's result of use.
In this embodiment, the printed circuit board 16 is provided with lines for connecting the circuits smoothly, when the high voltage distribution box is used, the lines generate certain heat when operating, and in order to dissipate the heat, protect the printed circuit board 16 and prolong the service life of the printed circuit board 16, the printed circuit board 16 is provided with heat conductive silica gel.
In conclusion, this kind of high voltage distribution box's box 1 comprises bottom plate, curb plate, apron, and the bottom plate top is equipped with places the board, and integrated control panel places on placing the board, and first positive copper bar 12, the anodal copper bar 13 of second, the anodal copper bar 14 of third, and first negative copper bar 15 and main relay 11 etc. all fix on placing the board, are equipped with printed circuit board 16 on the integrated control panel, and each connector and fuse correspond through the circuit on each copper bar and the printed circuit board 16 and connect the formation return circuit. Each circuit is then connected to a corresponding component in the vehicle to provide power thereto.
The main circuit in this kind of high-voltage distribution box is concentrated on printed circuit board 16, only uses a small amount of copper bars to guarantee the stable connection in each return circuit, and is less with the volume, can integrate in MOS pipe 22 on printed circuit board 16 inserts partial return circuit as the auxiliary relay, has reduced the occupation in space greatly for the configuration in each return circuit in the high-voltage distribution box is connected more simple and conveniently, is convenient for more produce.
The above-described embodiments describe the technical principles of the present invention, and these descriptions are only for the purpose of explaining the principles of the present invention, and should not be interpreted as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a high voltage distribution box for electric automobile, its characterized in that: including the box, and be located inside circuit element of box, the box include the bottom plate, with the curb plate that the bottom plate is connected and upwards extends, for being located the apron of curb plate top, circuit element corresponds to and forms motor circuit, charging circuit, DCDC return circuit, air conditioner return circuit and PTC return circuit after connecting, circuit element includes integrated control board, main relay, main safety device, connecting device, integrated control board main relay main safety device is fixed in on the bottom plate, connecting device is fixed in on the curb plate, be equipped with printed circuit board, vice insurance device, MOS pipe on the integrated control board, load interconnecting link on the printed circuit board, vice insurance device and part connecting device corresponds the connection, the MOS pipe is vice relay.
2. The high voltage distribution box of claim 1, wherein: be equipped with in the box and be used for connecting circuit element's first anodal copper bar, the anodal copper bar of second, the anodal copper bar of third and first negative pole copper bar, connecting device includes that positive connector of battery, battery burden connector, PTC connector, the positive connector of motor, motor burden connector, communication connector, air conditioner connector, fills DCDC connector slowly, the both ends of vice insurance device are equipped with the erection terminal respectively, vice insurance device is including charging insurance, PTC insurance, DCDC insurance, air conditioner insurance.
3. The high voltage distribution box of claim 2, wherein: the positive connector of battery passes through first anodal copper bar inserts main safety device, main safety device passes through the access of second anodal copper bar main relay, main relay passes through the access of third anodal copper bar the positive connector of motor, the negative connector of battery passes through the access of third anodal copper bar the negative connector of motor.
4. The high voltage distribution box of claim 2, wherein: first positive copper bar is equipped with first trompil, the erection terminal of insurance one end that charges inserts in the first trompil, the MOS pipe is including the MOS that charges, be equipped with first connecting circuit in the printed circuit board, the insurance that charges passes through first connecting circuit with the MOS electric connection that charges, the erection terminal of the insurance other end that charges with fill slowly/DCDC connector connects.
5. The high voltage distribution box of claim 4, wherein: the air conditioner fuse is connected to the air conditioner connector through the first connecting line.
6. The high voltage distribution box of claim 2, wherein: the first positive copper bar is provided with a second opening, the mounting terminal at one end of the PTC fuse is connected into the second opening, the MOS tube comprises a PTC-MOS, a second connecting circuit is arranged in the printed circuit board, the PTC fuse is electrically connected with the PTC-MOS through the second connecting circuit, and the mounting terminal at the other end of the PTC fuse is connected with the PTC connector.
7. The high voltage distribution box of claim 6, wherein: the PTC-MOS comprises a first PTC-MOS tube and a second PTC-MOS tube.
8. The high voltage distribution box of claim 2, wherein: first positive copper bar is equipped with the third trompil, the erection terminal of DCDC insurance one end inserts in the third trompil, the MOS pipe includes DCDC-MOS, be equipped with third interconnecting link in the printed circuit board, the DCDC insurance passes through third interconnecting link with DCDC-MOS electric connection, the erection terminal of DCDC insurance other end with fill slowly/DCDC connector connects.
9. The high voltage distribution box of claim 1, wherein: the bottom plate is provided with a supporting seat, the placing plate is fixedly connected with the supporting seat, and the integrated control panel, the main relay and the main safety device are fixed on the placing plate.
10. The high voltage distribution box of claim 1, wherein: and the printed circuit board is provided with heat-conducting silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020673138.9U CN212473336U (en) | 2020-04-27 | 2020-04-27 | High-voltage distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020673138.9U CN212473336U (en) | 2020-04-27 | 2020-04-27 | High-voltage distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212473336U true CN212473336U (en) | 2021-02-05 |
Family
ID=74453708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020673138.9U Expired - Fee Related CN212473336U (en) | 2020-04-27 | 2020-04-27 | High-voltage distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212473336U (en) |
-
2020
- 2020-04-27 CN CN202020673138.9U patent/CN212473336U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |