CN223613640U - An electric vehicle controller - Google Patents
An electric vehicle controllerInfo
- Publication number
- CN223613640U CN223613640U CN202422184151.9U CN202422184151U CN223613640U CN 223613640 U CN223613640 U CN 223613640U CN 202422184151 U CN202422184151 U CN 202422184151U CN 223613640 U CN223613640 U CN 223613640U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- aluminum
- electric vehicle
- vehicle controller
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to an electric vehicle controller which comprises a base, wherein a top cover is assembled on the base, a first compression convex strip and a second compression convex strip are respectively arranged at the bottom of the top cover, an aluminum-based circuit board is arranged in the base, a power device module, a three-phase power terminal and an input power terminal are attached to the aluminum-based circuit board, a first supporting boss is arranged in the base, a second supporting boss is arranged on the three-phase power terminal, a first circuit board is simultaneously placed on the tops of the first supporting boss and the second supporting boss and is compressed by the first compression convex strip and the second compression convex strip, a control device module is assembled on the first circuit board, the first circuit board is electrically connected with the aluminum-based circuit board through a contact pin, second circuit boards are respectively arranged at two sides of the first circuit board, a plurality of capacitors are assembled on a single second circuit board, and the single second circuit board is electrically connected with the aluminum-based circuit board through a plurality of conducting rings. The heat dissipation efficiency is high, no additional heat dissipation devices are needed, and the structural layout is reasonable and compact.
Description
Technical Field
The utility model relates to the technical field of electric vehicle controllers, in particular to an electric vehicle controller.
Background
The electric vehicle controller is widely applied to various electric vehicle types, including electric bicycles, electric motorcycles, electric tricycles, electric quadricycles and the like, is a core component of an electric system of the electric vehicle, and is mainly used for controlling the starting, running, advancing and retreating, speed and stopping of an electric motor of the electric vehicle and other electronic devices of the electric vehicle. The electric vehicle controller generally includes a low voltage unit for performing control signal transmission and a high voltage unit for performing driving signal conversion.
In the prior art, considering the factors such as manufacturing cost and internal layout of the controller, part of devices in the low-voltage unit cannot be assembled on the circuit board in a mounting mode, so that a gap for accommodating pins of the devices needs to be reserved between the circuit board and the inner bottom wall of the base. However, this layout method results in poor heat dissipation performance of the circuit board, and requires to arrange additional heat dissipation devices to dissipate heat, which results in an increase in the size of the electric vehicle controller, and is difficult to meet the current use requirements of small size and light weight.
Disclosure of utility model
The inventor aims at the defects in the prior art, and provides the electric vehicle controller, through arranging the aluminum-based circuit boards and the first circuit boards which are arranged at intervals, the aluminum-based circuit boards can be attached to the base for installation, no additional heat dissipation devices are required to be arranged, the heat dissipation efficiency of the electric vehicle controller can be improved, and the structural layout of the electric vehicle controller is compact.
The technical scheme adopted by the utility model is as follows:
the electric vehicle controller comprises a base with an opening at the top, a top cover is assembled at the opening of the base, a first compression convex strip and a second compression convex strip are respectively arranged at the bottom of the top cover, an aluminum-based circuit board is mounted on the bottom wall surface in the opening of the base in a laminating mode, a power device module, a three-phase power supply terminal and an input power supply terminal are respectively mounted on the top end surface of the aluminum-based circuit board in a laminating mode, a plurality of first supporting bosses which are arranged in an array mode are arranged on one side wall surface in the opening of the base, the first supporting bosses correspond to the first compression convex strips, a plurality of second supporting bosses are arranged on one side wall surface of the three-phase power supply terminal, and the second supporting bosses correspond to the second compression convex strips;
The first circuit board is simultaneously placed on the tops of the first supporting boss and the second supporting boss, and is compressed by the first compressing convex strip and the second compressing convex strip, so that the first circuit board is arranged above the aluminum-based circuit board at intervals;
the first circuit board is provided with a control device module, the first circuit board is electrically connected with the aluminum-based circuit board through the pin connector, the two sides of the first circuit board are respectively provided with a second circuit board, a plurality of capacitors are arranged on a single second circuit board in a matched mode, the single second circuit board is arranged above the aluminum-based circuit board at intervals, and the single second circuit board is electrically connected with the aluminum-based circuit board through a plurality of conducting rings.
As a further improvement of the above technical scheme:
The base is provided with an inner convex edge along the circumferential direction on the inner side wall surface of the opening, the outer side wall surface of the top cover is provided with an outer convex edge corresponding to the inner convex edge along the circumferential direction, and the inner convex edge supports the outer convex edge, so that an installation space is formed between the base and the top cover.
The top cover is provided with a first mounting hole, a second mounting hole and a third mounting hole respectively.
The three-phase power terminal is disposed in the first mounting hole.
The input power terminal is disposed in the second mounting hole.
The aluminum-based circuit board is electrically connected with the three-phase power supply terminal and the input power supply terminal through a plurality of conducting strips.
The structure of the single conductive sheet comprises a first conductive part and a second conductive part which is arranged in parallel with the first conductive part at intervals, wherein the second conductive part is planar, and the first conductive part and the second conductive part are connected through a first connecting part and a second connecting part in sequence.
A positioning lug is arranged on the single second supporting lug boss.
The second pressing convex strips are provided with first positioning grooves corresponding to the positioning convex blocks.
And a second positioning groove corresponding to the positioning convex block is formed in the first circuit board.
The beneficial effects of the utility model are as follows:
The utility model has compact and reasonable structure and convenient operation, and the aluminum-based circuit board and the first circuit board which are arranged at intervals can be attached to the base for installation without additionally arranging a heat dissipation device, so that the heat dissipation efficiency of the electric vehicle controller can be improved, and the structural layout of the electric vehicle controller is compact.
The utility model also has the following advantages:
(1) According to the utility model, the second circuit board is used as the capacitor board, and the capacitor and the power device module are arranged separately, so that the flexibility of the internal layout of the installation space can be further improved.
(2) According to the utility model, the first support boss, the second support boss, the third support raised line and the fourth support raised line are arranged, so that an aluminum-based circuit board and the first circuit board can be arranged at intervals up and down without additional support structures, the design is ingenious, and the layout can be further compact.
(3) According to the utility model, the first positioning groove, the second positioning groove and the positioning convex block are arranged, so that the mounting position of the first circuit board can be positioned, and the first circuit board can be limited after being mounted, and is prevented from shifting in the use process.
(4) According to the utility model, the conductive sheet is arranged, so that the three-phase power supply terminal and the aluminum-based circuit board and the input power supply terminal and the aluminum-based circuit board can be attached to the base for installation.
(5) According to the utility model, the aluminum-based circuit board can be limited by arranging the limiting convex blocks.
(6) According to the utility model, the supporting legs are arranged, so that the corresponding three-phase power supply terminal and input power supply terminal can be supported, and the structural stability is improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an exploded view of the present utility model.
Fig. 3 is a front view of fig. 1.
Fig. 4 is a cross-sectional view of section A-A of fig. 3.
Fig. 5 is a top view of the base of the present utility model.
Fig. 6 is a schematic view of the structure of the top cover in the present utility model.
Fig. 7 is a side view of fig. 6.
Fig. 8 is a schematic diagram of a mounting structure of a three-phase power terminal and a conductive sheet in the present utility model.
Fig. 9 is a schematic structural view of a conductive sheet according to the present utility model.
Fig. 10 is a side view of fig. 9.
The waterproof and breathable circuit board comprises a base, a top cover, an upper cover, a waterproof and breathable cover, a 5-aluminum-based circuit board, a 6-first circuit board, a 7-second circuit board, an 8-capacitor, a 9-aluminum ring, a 10-first screw, an 11-insulating ring, a 12-conductive ring, a 13-second screw, a 14-lead terminal, a 15-three-phase power terminal, a 16-input power terminal, a 17-support leg, a 18-conductive sheet;
101. 102, an inner convex edge, 103, a limit bump, 104 and a locking hole;
201. A first pressing convex strip; 202, second pressing convex strips, 203, first mounting holes, 204, second mounting holes, 205, third mounting holes, 206, first positioning grooves, 207, outer convex edges;
601. A second positioning groove;
1501. 1502, positioning the bump;
1801. First conductive part 1802, second conductive part 1803, first connecting part 1804, second connecting part.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
As shown in fig. 1-10, an electric vehicle controller comprises a base 1 with an opening at the top, a top cover 2 is assembled at the opening of the base 1, a first compression convex strip 201 and a second compression convex strip 202 are respectively arranged at the bottom of the top cover 2, an aluminum-based circuit board 5 is attached to the bottom wall surface in the opening of the base 1, a power device module, a three-phase power terminal 15 and an input power terminal 16 are respectively attached to the top end surface of the aluminum-based circuit board 5, a plurality of first supporting bosses 101 which are arranged in a row are arranged on one side wall surface in the opening of the base 1, the first supporting bosses 101 correspond to the first compression convex strips 201, a plurality of second supporting bosses 1501 are arranged on one side wall surface of the three-phase power terminal 15, and the second supporting bosses 1501 correspond to the second compression convex strips 202; the first circuit board 6 is placed on the tops of the first supporting boss 101 and the second supporting boss 1501 at the same time, the first circuit board 6 is pressed by the first pressing raised strips 201 and the second pressing raised strips 202, so that the first circuit board 6 is arranged above the aluminum-based circuit board 5 at intervals, a control device module is assembled on the first circuit board 6, the first circuit board 6 is electrically connected with the aluminum-based circuit board 5 through a pin header, the second circuit boards 7 are respectively arranged at two sides of the first circuit board 6, a plurality of capacitors 8 are assembled on a single second circuit board 7, the single second circuit board 7 is arranged above the aluminum-based circuit board 5 at intervals, and the single second circuit board 7 is electrically connected with the aluminum-based circuit board 5 through a plurality of conducting rings 12.
The specific structure and functions of the utility model are as follows:
The utility model relates to an electric vehicle controller, which comprises a base 1, a top cover 2, an aluminum-based circuit board 5, a first circuit board 6 and a second circuit board 7, wherein,
The top of the base 1 is provided with an opening, and an installation space is formed inside the butt joint of the base 1 and the top cover 2, specifically, as shown in fig. 2 and 4, an inner convex edge 102 is circumferentially arranged on the inner side wall surface of the opening of the base 1, an outer convex edge 207 corresponding to the inner convex edge 102 is circumferentially arranged on the outer side wall surface of the top cover 2, and the inner convex edge 102 supports the outer convex edge 207, so that an installation space is formed between the base 1 and the top cover 2;
the other parts of the electric vehicle controller are uniformly distributed in the installation space.
The aluminum-based circuit board 5 is a power board, a power device module, a three-phase power terminal 15 and an input power terminal 16 are attached to the power board, the input power terminal 16 is used for being electrically connected with an external driving power supply, the power device module is used for converting direct current output by the external driving power supply into three-phase alternating current, and the three-phase power terminal 15 is used for outputting the three-phase alternating current to a power utilization end of the electric vehicle;
In the utility model, the bottom end surface of the aluminum-based circuit board 5 is attached to the inner bottom wall surface of the opening of the base 1, so that the heat dissipation efficiency of the aluminum-based circuit board 5 and the power device module can be improved;
As shown in fig. 2, 8-10, the aluminum-based circuit board 5 is electrically connected with the three-phase power supply terminal 15 and the input power supply terminal 16 through a plurality of conductive sheets 18, namely, the three-phase power supply terminal 15 and the input power supply terminal 16 are respectively attached to the aluminum-based circuit board 5 through corresponding conductive sheets 18;
As shown in fig. 9-10, the single conductive sheet 18 includes a first conductive portion 1801 and a second conductive portion 1802 arranged in parallel with the first conductive portion 1801 at intervals, the second conductive portion 1802 is planar, and the first conductive portion 1801 and the second conductive portion 1802 are sequentially connected by a first connection portion 1803 and a second connection portion 1804. The first conductive part 1801 is used for being assembled with a wiring groove on a corresponding power terminal (comprising a three-phase power terminal 15 and an input power terminal 16), and the first conductive part 1801 can be arranged in an L shape to improve the connection stability with the corresponding wiring groove;
The second conductive part 1802 is used for being attached to the aluminum-based circuit board 5, the second conductive part 1802 is in a plane shape, the first connecting part 1803 and the second connecting part 1804 are used for connecting the first conductive part 1801 and the second conductive part 1802, the first connecting part 1803 is arranged perpendicular to the end face of the second conductive part 1802, and the second connecting part 1804 is obliquely arranged relative to the end face of the second conductive part 1802 so as to connect the first connecting part 1808 arranged along the vertical direction and the second conductive part 1802 arranged along the horizontal direction.
In the present utility model, the first conductive portion 1801, the second conductive portion 1802, the first connection portion 1803, and the second connection portion 1804 are integrally formed.
In addition, the bottoms of the three-phase power supply terminal 15 and the input power supply terminal 16 are respectively provided with a plurality of supporting legs 17 for supporting the corresponding three-phase power supply terminal 15 and the input power supply terminal 16, so that the structural stability is improved.
In the utility model, the power device module adopts a bridge type inverter circuit built based on an IGBT power tube so as to realize the electric signal conversion of direct-current and alternating-current.
A first circuit board 6 and two second circuit boards 7 are arranged above the aluminum-based circuit board 5 at intervals, the two second circuit boards 7 are respectively arranged at two sides of the first circuit board 6, and the two second circuit boards 7 are respectively arranged at intervals with the first circuit board 6.
The first circuit board 6 is a control board, on which a control device module is welded, the control device module includes a lead terminal 14, and further includes a control chip assembly (not shown in the drawing), and the control chip assembly performs signal transmission with external equipment through the lead terminal 14;
Furthermore, the first circuit board 6 is electrically connected to the aluminum-based circuit board 5 through a pin header (not shown in the drawing).
Specifically, as shown in fig. 4, a plurality of first supporting bosses 101 are arranged on the base 1, a plurality of second supporting bosses 1501 are arranged on the three-phase power supply terminal 15, and positioning lugs 1502 are arranged on the single second supporting boss 1501;
The top cover 2 is respectively provided with a first pressing raised line 201 and a second pressing raised line 202;
In addition, the second pressing convex strip 202 is provided with a first positioning groove 206 corresponding to the positioning convex block 1502, and the first circuit board 6 is provided with a second positioning groove 601 corresponding to the positioning convex block 1502;
The first positioning groove 206 and the second positioning groove 601 are matched with the positioning convex blocks 1502, so that the placement positions of the first circuit board 6 on the first supporting boss 101 and the second supporting boss 1501 are positioned;
After the first circuit board 6 is placed on the first supporting boss 101 and the second supporting boss 1501, the top cover 2 is placed on the base 1 by matching the outer convex edge 207 with the inner convex edge 102, and the top cover 2 is made to cover the opening of the base 1;
At this time, the first pressing protrusion 201 and the second pressing protrusion 202 on the top cover 2 press the edge of the first circuit board 6;
Then, dispensing is performed between the outer convex edge 207 and the inner convex edge 102, so that the top cover 2 is fixed on the base 1, and at this time, the first pressing convex strip 201 and the second pressing convex strip 202 press the first circuit board 6, thereby completing the installation of the first circuit board 6;
In addition, after the first pressing raised strips 201 and the second pressing raised strips 202 press the first circuit board 6, the first positioning groove 206, the second positioning groove 601 and the positioning protruding block 1502 cooperate to limit the first circuit board 6, so that the first circuit board 6 can be prevented from shifting during the use process of the electric vehicle controller.
The single second circuit board 7 is arranged at intervals with the aluminum-based circuit board 5 through a plurality of support components, specifically, as shown in fig. 2 and 4, the single support component comprises an aluminum ring 9 welded on the aluminum-based circuit board 5, a first screw 10 is assembled in the aluminum ring 9, and the first screw 10 sequentially penetrates through the second circuit board 7, the aluminum ring 9, the aluminum-based circuit board 5 and the base 1 from top to bottom, so that the corresponding second circuit board 7 and the aluminum-based circuit board 5 are fastened;
furthermore, an insulating ring 11 is fitted on the outer circumferential surface of the first screw 10, the first screw 10 being electrically isolated from the second circuit board 7 by the insulating ring 11, and at the same time, the first screw 10 being electrically isolated from the aluminum ring 9 by the insulating ring 11;
As shown in fig. 5, a locking hole 104 corresponding to the first screw 10 is formed on the bottom wall surface of the opening of the base 1, and the first screw 10 is fastened and matched with the base 1 through the corresponding locking hole 104.
The single second circuit board 7 is electrically connected with the aluminum-based circuit board 5 through the conducting ring 12, and the second screws 13 sequentially penetrate through the corresponding second circuit board 7, the conducting ring 12 and the aluminum-based circuit board 5, so that the corresponding conducting ring 12 is fixed and limited.
The second circuit board 7 is a capacitor board, and a plurality of capacitors 8 are arranged on the capacitor board, and the capacitors 8 are used for keeping voltage stable when the electric vehicle controller works, so that the working stability of the electric vehicle controller is improved.
As shown in fig. 6, the top cover 2 is provided with a first mounting hole 203, a second mounting hole 204 and a third mounting hole 205, the three-phase power terminal 15 is arranged in the first mounting hole 203, the input power terminal 16 is arranged in the second mounting hole 204, and the lead terminal 14 is arranged in the third mounting hole 205;
An upper cover 3 is assembled outside the top cover 2, and the upper cover 3 covers the first mounting hole 203 and the second mounting hole 204 at the same time, so that the three-phase power terminal 15 and the input power terminal 16 are protected;
The lead terminal 14 protrudes from the third mounting hole 205 to the outside of the mounting space, thereby facilitating wiring with an external lead;
the outside of the upper cover 2 is also provided with a waterproof and breathable cover 4, and the waterproof and breathable cover 4 is used for covering the ventilation holes.
Further, as shown in fig. 6, the second pressing boss 202 is disposed at the edge of the first mounting hole 203 to facilitate the engagement with the second supporting boss 1501 on the three-phase power terminal 15 located in the first mounting hole 203.
The working process of the utility model is as follows:
the output end of the external driving power supply is electrically connected with the input power supply terminal 16;
The input end of the electric bicycle motor is electrically connected with the three-phase power supply terminal 15;
The electric vehicle controller converts direct current output by an external driving power supply into three-phase alternating current, so that a motor of the electric bicycle is driven to work, and further the action of the electric bicycle is controlled.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (9)
1. An electric vehicle controller comprises a base (1) with an opening at the top, and is characterized in that a top cover (2) is assembled at the opening of the base (1), a first pressing raised line (201) and a second pressing raised line (202) are respectively arranged at the bottom of the top cover (2), an aluminum-based circuit board (5) is mounted on the bottom wall surface in the opening of the base (1) in a bonding mode, a power device module, a three-phase power supply terminal (15) and an input power supply terminal (16) are respectively mounted on the top end surface of the aluminum-based circuit board (5), a plurality of first supporting bosses (101) which are arranged in an array mode are arranged on one side wall surface in the opening of the base (1), the first supporting bosses (101) correspond to the first pressing raised line (201), a plurality of second supporting bosses (1501) are arranged on one side wall surface of the three-phase power supply terminal (15), a first positioning groove (206) corresponding to a positioning convex block (1502) is formed on the second pressing raised line (202),
The first circuit board (6) is placed on the tops of the first supporting boss (101) and the second supporting boss (1501) at the same time, and the first circuit board (6) is pressed by the first pressing raised strips (201) and the second pressing raised strips (202), so that the first circuit board (6) is arranged above the aluminum-based circuit board (5) at intervals;
The control device module is assembled on the first circuit board (6), the first circuit board (6) is electrically connected with the aluminum-based circuit board (5) through the pin connector, the second circuit boards (7) are respectively arranged at two sides of the first circuit board (6), a plurality of capacitors (8) are assembled on the single second circuit board (7), the single second circuit board (7) is arranged above the aluminum-based circuit board (5) at intervals, and the single second circuit board (7) is electrically connected with the aluminum-based circuit board (5) through a plurality of conducting rings (12).
2. The electric vehicle controller according to claim 1, wherein an inner convex edge (102) is circumferentially arranged on the inner side wall surface of the opening of the base (1), an outer convex edge (207) corresponding to the inner convex edge (102) is circumferentially arranged on the outer side wall surface of the top cover (2), and the inner convex edge (102) supports the outer convex edge (207) so that an installation space is formed between the base (1) and the top cover (2).
3. The electric vehicle controller of claim 1, wherein the top cover (2) is provided with a first mounting hole (203), a second mounting hole (204) and a third mounting hole (205) respectively.
4. An electric vehicle controller as claimed in claim 3, characterized in that the three-phase power supply terminal (15) is arranged in the first mounting hole (203).
5. An electric vehicle controller according to claim 3, wherein the input power terminal (16) is disposed within the second mounting hole (204).
6. The electric vehicle controller as set forth in claim 1, wherein the aluminum-based circuit board (5) is electrically connected to the three-phase power supply terminal (15) and the input power supply terminal (16) through a plurality of conductive strips (18).
7. The electric vehicle controller as set forth in claim 6, wherein the single conductive sheet (18) comprises a first conductive portion (1801) and a second conductive portion (1802) disposed in parallel with the first conductive portion (1801), the second conductive portion (1802) is planar, and the first conductive portion (1801) and the second conductive portion (1802) are connected sequentially through a first connection portion (1803) and a second connection portion (1804).
8. An electric vehicle controller as set forth in claim 1 wherein a single second support boss (1501) is provided with a positioning tab (1502).
9. The electric vehicle controller as set forth in claim 8, wherein the first circuit board (6) is provided with a second positioning groove (601) corresponding to the positioning bump (1502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422184151.9U CN223613640U (en) | 2024-09-05 | 2024-09-05 | An electric vehicle controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422184151.9U CN223613640U (en) | 2024-09-05 | 2024-09-05 | An electric vehicle controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223613640U true CN223613640U (en) | 2025-11-28 |
Family
ID=97786507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422184151.9U Active CN223613640U (en) | 2024-09-05 | 2024-09-05 | An electric vehicle controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223613640U (en) |
-
2024
- 2024-09-05 CN CN202422184151.9U patent/CN223613640U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201742360U (en) | DC brushless motor controller | |
| CN209692624U (en) | An integrated motor inverter assembly | |
| CN111130399A (en) | Dual-motor controller for driving motor of electric automobile | |
| CN223613640U (en) | An electric vehicle controller | |
| CN214592129U (en) | Pcb assembling structure | |
| CN211209596U (en) | Novel power module structure | |
| JP2002291261A (en) | Power converter | |
| CN113659848A (en) | Auxiliary inversion module and railway vehicle | |
| CN210016395U (en) | Frequency converter mounting structure | |
| CN216699800U (en) | Power unit device of high-voltage frequency converter | |
| CN210247209U (en) | High-power electric automobile controller discrete IGBT's mounting structure | |
| CN218042161U (en) | High-voltage power supply rectifying assembly and rectifying device | |
| CN209526622U (en) | Switched reluctance motor controller | |
| CN212785189U (en) | Power inverter | |
| CN210694669U (en) | Motor controller | |
| CN220254922U (en) | Mounting structure of bypass contactor | |
| CN115224883A (en) | Electric drive assembly device with vertical power single-tube inverter | |
| CN217849265U (en) | a controller | |
| CN110247611B (en) | Integrated electrical device for high power controller | |
| CN220915623U (en) | Multifunctional module-in-one vehicle control device | |
| CN223040443U (en) | A high performance controller device for electric bicycle | |
| CN220914232U (en) | Power module | |
| CN215871952U (en) | Motor driver module and PCB (printed circuit board) thereof | |
| CN223246462U (en) | Motor controller and vehicle | |
| CN218958791U (en) | DC/DC module of fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |