CN210502572U - High-voltage distribution box with strong universality - Google Patents
High-voltage distribution box with strong universality Download PDFInfo
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- CN210502572U CN210502572U CN201921646356.7U CN201921646356U CN210502572U CN 210502572 U CN210502572 U CN 210502572U CN 201921646356 U CN201921646356 U CN 201921646356U CN 210502572 U CN210502572 U CN 210502572U
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- connecting port
- box body
- body base
- relay
- electrode connecting
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Abstract
The utility model discloses a high-voltage distribution box with strong universality, which comprises a box body base, wherein a motor controller positive electrode connecting port, a motor controller negative electrode connecting port and a PTC heating negative electrode connecting port are arranged on one side wall of the box body base, the other side wall of the box body base is provided with a battery anode connecting port, a battery cathode connecting port and a PTC heating anode connecting port, the box body base is internally provided with a control unit, a pre-charging unit and a power distribution unit, the control unit comprises a main positive relay and a main negative relay, precharge unit is including precharging relay, precharging resistor, power distribution unit is including heating relay, shunt, major loop short circuit protector, heating short circuit protector, the utility model discloses the integrated level is high, has improved the security, and box body base and the inside metal level that sets up of lid can bear bigger pressure and torsion.
Description
Technical Field
The utility model relates to a block terminal field specifically is a high voltage distribution box that commonality is strong.
Background
The power of the new energy automobile is mainly provided with main energy by a battery system, and the energy transmission of the whole system is transmitted by a high-voltage electric system. The BDU can integrate functions such as a pre-charging module, a slow-charging module, a PTC control module and short-circuit protection, is more integrated in function and more complex in structure, and is specially designed for the interior of a battery pack and a distribution box.
Due to the constraints in the aspects of cost, technology and the like, when high-voltage current is transmitted, the connection of each high-voltage system is realized by adopting a mode of fastening a terminal by a bolt, all high-voltage devices are placed in a mode of placing a scaffold in a leakage manner, although the structure is simple, the high-voltage device placement device does not have the functions of dust prevention, water prevention, leakage prevention and the like, the safety performance is low, and the high-voltage device placement device easily causes the situations of electric shock or electric leakage to hurt people in the using process or later maintenance; some distribution boxes have box body bases and box covers that are not high in strength and cannot bear large torsion and pressure, so that the distribution boxes are easy to damage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high voltage distribution box that commonality is strong, the integrated level is high, has improved the security, and box body base and the inside metal level that sets up of lid can bear bigger pressure and torsion to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high voltage distribution box that commonality is strong, includes the box body base, anodal connection port of machine controller, machine controller negative pole connection port and PTC heating negative pole connection port have been seted up to a box body base lateral wall, anodal connection port of battery, battery negative pole connection port and the anodal connection port of PTC heating have been seted up to another lateral wall of box body base, inside the being equipped with the control unit of box body base, pre-charge unit and the power distribution unit, the control unit includes main positive relay, main negative relay, the pre-charge unit is including pre-charge relay, pre-charge resistance, the power distribution unit is including heating relay, shunt, main loop short circuit protector, heating short circuit protector, the inside low pressure signal control connection port plug-in piece that is provided with of box body base.
Preferably, the upper side of the box body base is fixedly connected with a box cover.
Preferably, the positive electrode connecting port of the motor controller, the negative electrode connecting port of the motor controller and the PTC heating negative electrode connecting port are electrically connected with the battery management system.
Preferably, the battery positive electrode connecting port, the battery negative electrode connecting port and the PTC heating positive electrode connecting port are electrically connected to a battery management system.
Preferably, the box body base is fixedly connected with a reinforcing rib inside.
Preferably, the box body base and the box cover are internally connected with metal layers.
The bottom of the box body base is connected with an embedded copper sleeve.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the degree of integrating is high, reduces the volume of high voltage distribution box, through the control unit, precharge unit, short-circuit protection and power distribution unit when realizing high-pressure heavy current energy transmission control, have still played the function of short-circuit protection when overloading to main circuit, have effectively improved electric automobile high voltage electrical apparatus control system's reliability and security. The protective device has good hand touch protection, insulation and effect, is reasonable and rapid in assembly and assembly, improves the production efficiency by 50 percent, is reasonable in component arrangement and distribution, and can reduce the power loss;
2. the box body base and the lid internal connection have the metal level, and structural strength is big, can bear very big torsion and pressure, and the area of contact between metal level and box body base and the lid is big, has guaranteed to inlay intensity, avoids deviating from not hard up, increases product fail safe nature and life.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the partial structure of the present invention;
fig. 3 is the working principle diagram of the low-voltage signal control connection port plug-in unit of the present invention.
In the figure: 1. a box body base; 3. the positive electrode of the motor controller is connected with the port; 4. the negative electrode of the motor controller is connected with the port; 5. a PTC heating negative electrode connection port; 6. a battery positive electrode connection port; 7. a battery negative connection port; 8. a PTC heating positive electrode connecting port; 9. a control unit; 10. a precharge unit; 11. a power distribution unit; 12. a main positive relay; 13. a main negative relay; 14. a pre-charge relay; 15. a pre-charge resistor; 16. heating the relay; 17. a flow divider; 18. a main circuit short circuit protector; 19. heating the short circuit protector; 20. the low voltage signal controls the connection port plug-in.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a high voltage distribution box that commonality is strong, includes box body base 1, for the reinforcing security performance, at 1 upside fixedly connected with lid of box body base. In order to enhance the strength of the box body base 1, a reinforcing rib is fixedly connected inside the box body base 1, and metal layers are connected inside the box body base 1 and the box cover.
The copper sheathing of inlaying of box body base 1 bottom both sides and middle installation screw for fix the assembly with battery box upper portion mounting point, make box body base 1 stable firm the installation inside the battery box, can satisfy whole car vibration requirement not hard up, do not ftracture.
The positive connection port 3 of the motor controller, the negative connection port 4 of the motor controller and the PTC heating negative connection port 5 are arranged on one side wall of the box body base 1, and in order to realize effective control, the positive connection port 3 of the motor controller, the negative connection port 4 of the motor controller and the PTC heating negative connection port 5 are all electrically connected with the battery management system.
The other side wall of the box body base 1 is provided with a battery anode connecting port 6, a battery cathode connecting port 7 and a PTC heating anode connecting port 8, and in order to realize effective control, the battery anode connecting port 6, the battery cathode connecting port 7 and the PTC heating anode connecting port 8 are all electrically connected with a battery management system.
A control unit 9, a pre-charging unit 10 and a power distribution unit 11 are arranged in the box body base 1, the control unit 9 comprises a main positive relay 12 and a main negative relay 13, the pre-charging unit 10 comprises a pre-charging relay 14 and a pre-charging resistor 15, the power distribution unit 11 comprises a heating relay 16, a shunt 17, a main loop short-circuit protector 18 and a heating short-circuit protector 19, the total positive pole of the battery is connected with the positive pole contact of the main positive relay 12 of the control unit through the battery positive pole connecting port 6, and the negative pole contact of the main positive relay 12 is connected with the motor controller positive pole connecting port 3; the total negative pole of the battery is connected with one end of a shunt 17 of the power supply distribution unit through the negative pole connection port 7 of the battery, the other end of the shunt 17 is connected with a negative pole contact of a main negative relay 13 of the control unit, a positive pole contact of the main negative relay 13 of the control unit is connected with a main loop short-circuit protector 18, and the other end of the main loop short-circuit protector 18 is connected with a negative pole connection port 4 of the motor controller;
referring to fig. 3, a low voltage signal control connection port plug-in 20 is disposed inside the box body base 1, and the main relay conduction confirmation signal, the pre-charge relay conduction confirmation signal and the common terminal signal are electrically connected to the battery management system through the connection ports.
The working principle is as follows: the positive electrode connecting port 3 of the motor controller is connected with a positive electrode contact of the control unit main positive relay 12, the positive electrode contact of the control unit main positive relay 12 is connected with a positive electrode contact of the pre-charging relay 14, a negative electrode contact of the pre-charging relay 14 is connected with one end point of the pre-charging resistor 15 in series, the other end point of the pre-charging resistor 15 is connected with the negative electrode contact of the control unit main positive relay 12, the control end point of the pre-charging relay 14 is connected with the low-voltage signal control connecting port plug-in 20, and the low-voltage signal control connecting port plug-in 20 is finally electrically connected with the battery management system BMS to form a; the positive electrode connecting port 3 of the motor controller is connected with a positive electrode contact of the control unit main positive relay 12, the positive electrode contact of the control unit main positive relay 12 is connected with a positive electrode contact of the pre-charging relay 14, the positive electrode contact of the pre-charging relay 14 is connected with a positive electrode contact of the heating relay 16 in series, and the negative electrode contact of the heating relay 16 is connected with the PTC heating positive electrode connecting port 8; the negative electrode connecting port 4 of the motor controller is connected with the heating short-circuit protector 19, and the other end of the heating short-circuit protector 19 is connected with the PTC heating negative electrode connecting port 5, so that a heating loop can be formed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a high voltage distribution box that commonality is strong, includes box body base (1), its characterized in that: the power supply box comprises a box body base (1), a battery, a control unit (9), a pre-charging unit (10) and a power distribution unit (11), wherein a motor controller positive electrode connecting port (3), a motor controller negative electrode connecting port (4) and a PTC heating negative electrode connecting port (5) are arranged on one side wall of the box body base (1), a battery positive electrode connecting port (6), a battery negative electrode connecting port (7) and a PTC heating positive electrode connecting port (8) are arranged on the other side wall of the box body base (1), the control unit (9) comprises a main positive relay (12) and a main negative relay (13), the pre-charging unit (10) comprises a pre-charging relay (14) and a pre-charging resistor (15), the power distribution unit (11) comprises a heating relay (16), a shunt (17), a main loop short-circuit protector (18) and a heating short-circuit protector (19, the box body base (1) is internally provided with a low-voltage signal control connection port plug-in (20).
2. The high voltage distribution box with strong universality according to claim 1, characterized in that: the upper side of the box body base (1) is fixedly connected with a box cover.
3. The high voltage distribution box with strong universality according to claim 1, characterized in that: and the positive electrode connecting port (3) of the motor controller, the negative electrode connecting port (4) of the motor controller and the PTC heating negative electrode connecting port (5) are electrically connected with the battery management system.
4. The high voltage distribution box with strong universality according to claim 1, characterized in that: and the battery anode connecting port (6), the battery cathode connecting port (7) and the PTC heating anode connecting port (8) are electrically connected with the battery management system.
5. The high voltage distribution box with strong universality according to claim 1, characterized in that: the box body base (1) is internally and fixedly connected with a reinforcing rib.
6. The high voltage distribution box with strong universality according to claim 2, characterized in that: the box body base (1) and the box cover (2) are internally connected with metal layers.
7. The high voltage distribution box with strong universality according to claim 1, characterized in that: the bottom of the box body base (1) is connected with an embedded copper sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921646356.7U CN210502572U (en) | 2019-09-30 | 2019-09-30 | High-voltage distribution box with strong universality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921646356.7U CN210502572U (en) | 2019-09-30 | 2019-09-30 | High-voltage distribution box with strong universality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210502572U true CN210502572U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921646356.7U Expired - Fee Related CN210502572U (en) | 2019-09-30 | 2019-09-30 | High-voltage distribution box with strong universality |
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| CN (1) | CN210502572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549965A (en) * | 2019-09-30 | 2019-12-10 | 江西优特汽车技术有限公司 | High-voltage distribution box with strong universality |
-
2019
- 2019-09-30 CN CN201921646356.7U patent/CN210502572U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549965A (en) * | 2019-09-30 | 2019-12-10 | 江西优特汽车技术有限公司 | High-voltage distribution box with strong universality |
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| 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: 20200512 Termination date: 20210930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |