CN114845499B - Power semiconductor module - Google Patents
Power semiconductor module Download PDFInfo
- Publication number
- CN114845499B CN114845499B CN202210524448.8A CN202210524448A CN114845499B CN 114845499 B CN114845499 B CN 114845499B CN 202210524448 A CN202210524448 A CN 202210524448A CN 114845499 B CN114845499 B CN 114845499B
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- China
- Prior art keywords
- fixedly connected
- storage box
- box
- semiconductor chip
- semiconductor module
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 73
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 description 6
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- 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
- H05K5/02—Details
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a power semiconductor module, and relates to the technical field of semiconductors. The semiconductor chip is installed at the central point of the storage box, the power-on connector, the semiconductor chip and the output seat are communicated sequentially through a transmission wire harness, and an adjusting mechanism is arranged on the transmission wire harness between the power-on connector and the semiconductor chip. According to the invention, the regulating mechanism similar to the cam lifting mechanism is arranged in the common power semiconductor module, and the regulating mechanism is connected with the control panel outside the semiconductor module, so that a user can realize blocking and cutting off of current flowing into the semiconductor module by rotating the control panel, the protection of the chip inside the power semiconductor module is completed by simple mechanical linkage, and the flexibility and convenience of the device in actual use are improved.
Description
Technical Field
The invention relates to the technical field of semiconductors, in particular to a power semiconductor module.
Background
The power semiconductor module is a core device in a power electronic device and mainly comprises an insulated gate bipolar transistor device, and has the advantages of simple control, high voltage and high current, high frequency, low loss and the like.
At present, most power semiconductor modules in the market are designed and are provided with blocking mechanisms which can be arranged inside the semiconductor modules at the outer parts, so that when the current flowing into the semiconductor modules is too large, chips inside the semiconductor modules cannot be timely protected, and therefore, the power semiconductor modules are provided to solve the problems.
Disclosure of Invention
The present invention is directed to a power semiconductor module, which solves the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: the power semiconductor module comprises a storage box, wherein one side of the outer part of the storage box is fixedly connected with an electrifying connector, one end of the inner part of the storage box is fixedly connected with an output seat, a semiconductor chip is arranged at the central point of the inner part of the storage box, the electrifying connector, the semiconductor chip and the output seat are communicated sequentially through a transmission wire harness, and an adjusting mechanism is arranged on the transmission wire harness between the electrifying connector and the semiconductor chip;
the adjusting mechanism comprises a sliding frame, the bottom end of the sliding frame is fixed in the storage box, the bottom end close to one side of the electrifying connector is fixedly connected with the electrifying box, the input end of the electrifying box is fixed with the output end of the electrifying connector, a communication line is arranged in the electrifying box, one end of the communication line is fixedly connected with an electrifying wire harness, and the electrifying wire harness is a transmission wire harness between the electrifying connector and the semiconductor chip;
the outside position of circular telegram box one end has seted up the shutoff groove, and the end in shutoff groove breaks off circular telegram box internal connection line, the inside sliding connection of sliding frame has the trigger piece, and one side fixedly connected with atress arch of trigger piece, the inside position fixedly connected with of the outside one end of atress arch connect protruding, connect protruding with shutoff groove looks adaptation.
Still further, the outside position fixedly connected with compression spring of circular telegram box one end, compression spring's one end with the outside position of the protruding outside one end of atress is fixed mutually, the rotation breach has been seted up to the outside one end of sliding frame, the storage box rotates in the position of rotating breach department and is connected with the cam post, and the outer wall of cam post contacts with the outer wall of trigger piece.
Furthermore, the one end that triggers the piece towards the cam post is smooth arc structure, the one end fixedly connected with that triggers the piece towards the cam post triggers the arch, the hinge groove has been seted up to the outside of cam post, the hinge groove with trigger protruding looks adaptation.
Furthermore, the storage box is of an open box structure, a detachable protective upper cover is arranged at the position of the opening of the storage box, an assembly notch is formed in the top of the protective upper cover, the assembly notch is opposite to the position of the semiconductor chip, and a heat dissipation net is fixedly connected to the protective upper cover at the assembly notch.
Still further, the one end at protection upper cover top articulates there is rotatable control panel, and the bottom fixedly connected with joint round pin of control panel, the joint groove has been seted up at the top of cam post, joint round pin with joint groove looks adaptation.
Furthermore, the back of the protection upper cover is fixedly connected with a stabilizing pin, the inside of the storage box is fixedly connected with a stabilizing tube, and the stabilizing pin is matched with the stabilizing tube.
Furthermore, the periphery of the top of the upper protection cover is respectively connected with a fixing screw in a rotating way, the periphery of the top of the storage box is respectively provided with a screw hole, and the fixing screws are matched with the screw holes.
Furthermore, a positioning seat is fixed at the central point of the storage box, the semiconductor chip is clamped in the positioning seat, and the storage box is provided with the semiconductor chip through the positioning seat.
Furthermore, one side of the storage box is fixedly connected with an output connector, and the input end of the output connector is fixed with the output end of the output seat.
Still further, the inside one end fixedly connected with miniature air exhauster of storage box, miniature air exhauster's power input end with circular telegram pencil is fixed mutually, and the outside one side fixedly connected with of miniature air exhauster connects the pencil, connect the one end of pencil with semiconductor chip's power input end is fixed mutually, the exhaust end of miniature air exhauster runs through the inner wall of storage box and contacts with the external world, miniature air exhauster is at the inside fixedly connected with exhaust net of exhaust end, the inside one side fixedly connected with pencil frame of storage box, the outer wall of connecting the pencil contacts with the inner wall of pencil frame.
Compared with the prior art, the invention has the beneficial effects that:
according to the power semiconductor module, the adjusting mechanism similar to the cam lifting mechanism is installed in the common power semiconductor module, and the mechanism is connected with the control panel outside the semiconductor module, so that a user can cut off the blocking of current flowing into the semiconductor module by rotating the control panel, the protection of the chip inside the power semiconductor module is finished through simple mechanical linkage, and the flexibility and convenience of the device in actual use are improved.
According to the power semiconductor module, through the arrangement of adding the miniature exhaust fan in the power semiconductor module, the voltage of the chip in the semiconductor module is reduced, the internal temperature regulating effect of the power semiconductor module is achieved, and the service life of the power semiconductor module is prolonged indirectly.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a left and right isometric view of the present invention;
FIG. 3 is a rear view of the protective cover according to the present invention;
FIG. 4 is a view showing an internal assembly structure of the storage case of the present invention;
FIG. 5 is a view showing the internal assembly structure of the adjusting mechanism of the present invention;
fig. 6 is an auxiliary understanding view of fig. 5.
In the figure: 1. electrifying the joint; 2. an exhaust net; 3. a storage box; 4. a set screw; 5. a protective upper cover; 6. a heat dissipation net; 7. a control panel; 8. an output joint; 9. a stabilizing pin; 10. an output seat; 11. a wire harness frame; 12. connecting the wire harness; 13. a stabilizing tube; 14. a positioning seat; 15. a semiconductor chip; 16. an adjusting mechanism; 161. a cam post; 162. a clamping groove; 163. a sliding frame; 164. a connection protrusion; 165. a blocking groove; 166. a wire harness is electrified; 167. a power-on box; 168. a compression spring; 169. a stress bulge; 1610. a trigger block; 1611. triggering the bulge; 1612. a hinge groove; 17. a screw hole; 18. a miniature exhaust fan.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale, e.g., the thickness or width of some layers may be exaggerated relative to other layers for ease of description.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined or illustrated in one figure, no further detailed discussion or description thereof will be necessary in the following description of the figures.
As shown in fig. 1 to 6, the present invention provides a technical solution: a power semiconductor module includes a storage case 3.
In this application, the storage box 3 has the following features:
first, one side outside the storage box 3 is fixedly connected with an energizing joint 1.
And secondly, one end inside the storage box 3 is fixedly connected with an output seat 10.
Third, a semiconductor chip 15 is mounted at a central point inside the storage box 3, wherein the semiconductor chip 15 is clamped inside the positioning seat 14, and the storage box 3 mounts the semiconductor chip 15 through the positioning seat 14.
Fourth, wherein the storage box 3 is of an open box structure, the storage box 3 is provided with a detachable protective upper cover 5 at the position of the opening.
Fifth, a positioning seat 14 is fixed at the center point inside the storage box 3.
And sixthly, an output connector 8 is fixedly connected to one side outside the storage box 3, wherein the input end of the output connector 8 is fixed with the output end of the output seat 10.
Seventh, fixedly connected with miniature air exhauster 18 at the inside one end of storage box 3, wherein the outside one side fixedly connected with of miniature air exhauster 18 connects harness 12.
Eighth, a wire harness frame 11 is fixedly connected to one side inside the storage box 3, wherein the wire harness frame 11 plays a role of collecting the connecting wire harness 12.
Next, description will be given of features of the storage box 3 in order:
as can be seen from fig. 3, in the present application, the power connection 1, the semiconductor chip 15 and the output socket 10 are connected in sequence by a transmission harness, and an adjusting mechanism 16 is provided on the transmission harness between the power connection 1 and the semiconductor chip 15.
It should be noted that, referring to fig. 5, in the present application, the adjusting mechanism 16 includes a sliding frame 163, the bottom end of the sliding frame 163 is fixed in the storage box 3, the bottom end close to one side of the electrical connector 1 is fixedly connected with an electrical box 167, the input end of the electrical box 167 and the output end of the electrical connector 1 are fixed, a communication line is provided in the interior of the electrical box 167, one end of the communication line is fixedly connected with an electrical wire harness 166, the electrical wire harness 166 is a transmission wire harness between the electrical connector 1 and the semiconductor chip 15, it should be noted that a blocking slot 165 is opened in the outer side position of one end of the electrical box 167, the end of the blocking slot 165 breaks the communication line in the electrical box 167, the present application pushes the trigger block 1610, so that the connection protrusion 164 fixed on one side of the trigger block 1610 is inserted in the inside of the blocking slot 165, thereby reconnecting the communication line in the electrical box 167 through the connection protrusion 164, it is required to emphasize that the connection protrusion 164 is a conductor, and the trigger block 1610 is an insulator.
It should be further noted that, in this application, the outer position of one end of the energizing box 167 is fixedly connected with the compression spring 168, wherein the outer position of one end of the compression spring 168 and the outer end of the stressed protrusion 169 are fixed, in addition, it should be emphasized that a rotation notch is opened at one end of the outer portion of the sliding frame 163, and the storage box 3 is rotationally connected with the cam post 161 at the position of the rotation notch, wherein the outer wall of the cam post 161 contacts with the outer wall of the trigger block 1610, in addition, the end of the trigger block 1610 facing the cam post 161 is in a smooth arc structure, one end of the trigger block 1610 facing the cam post 161 is fixedly connected with the trigger protrusion 1611, the outer portion of the cam post 161 is opened with the hinge slot 1612, the hinge slot 1612 and the trigger protrusion 1611 are adapted, when the device is in practical use, when the cam post 161 rotates to the protrusion position facing the trigger block 1610, the cam post 161 pushes the trigger block 1610 through the trigger protrusion 1611, and it should be emphasized that, when the trigger protrusion 1 moves, the device is similar to the cam lifting mechanism, the connection protrusion 164 is inserted into the inside the blocking slot 167, and the communication line of the energizing box is completed.
Referring to fig. 2-3, in the present application, an assembly notch is formed at the top of the protective upper cover 5, the assembly notch is opposite to the position of the semiconductor chip 15, the protective upper cover 5 is fixedly connected with a heat dissipation net 6 at the assembly notch, the heat dissipation net 6 plays a role in heat dissipation protection, in addition, one end of the top of the protective upper cover 5 is hinged with a rotatable control disc 7, a clamping pin is fixedly connected with the bottom of the control disc 7, a clamping groove 162 is formed at the top of the cam post 161, and the clamping pin is matched with the clamping groove 162.
It is emphasized that when the device is in actual use, the adjusting mechanism 16 similar to the cam lifting mechanism is installed in the common power semiconductor module, and the mechanism is connected with the control panel 7 outside the semiconductor module, so that a user can cut off the blocking of current flowing into the semiconductor module by rotating the control panel 7, the protection of the chip inside the power semiconductor module is completed through simple mechanical linkage, and the flexibility and convenience of the device in actual use are improved.
It should be further noted that, in the present application, the back fixedly connected with stabilizer pin 9 of protecting upper cover 5, the inside fixedly connected with stabilizer tube 13 of storing box 3, stabilizer pin 9 and stabilizer tube 13 looks adaptation, wherein it should be emphasized that stabilizer pin 9 and stabilizer tube 13 play the effect of strengthening the connection stability between protecting upper cover 5 and storing box 3 in the present application.
It should be further noted that in the present application, the periphery of the top of the protection upper cover 5 is respectively connected with a fixing screw 4 in a rotating manner, and the periphery of the top of the storage box 3 is respectively provided with a screw hole 17, and the fixing screw 4 is matched with the screw hole 17.
Referring to fig. 4, in this application, the power input end of the mini-exhaust fan 18 is fixed to the power harness 166, one end of the connection harness 12 is fixed to the power input end of the semiconductor chip 15, the exhaust end of the mini-exhaust fan 18 penetrates through the inner wall of the storage box 3 and contacts with the outside, and the exhaust net 2 is fixedly connected to the mini-exhaust fan 18 in the exhaust end, and it is emphasized that the voltage at the chip inside the semiconductor module is reduced and the internal temperature regulation of the power semiconductor module is achieved by adding the mini-exhaust fan 18 in the power semiconductor module.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. A power semiconductor module comprising a storage case (3), characterized in that: one side of the outside of the storage box (3) is fixedly connected with an electrifying connector (1), one end of the inside of the storage box (3) is fixedly connected with an output seat (10), a semiconductor chip (15) is arranged at the central point of the inside of the storage box (3), the electrifying connector (1), the semiconductor chip (15) and the output seat (10) are communicated sequentially through a transmission wire harness, and an adjusting mechanism (16) is arranged on the transmission wire harness between the electrifying connector (1) and the semiconductor chip (15);
the adjusting mechanism (16) comprises a sliding frame (163), the bottom end of the sliding frame (163) is fixed in the storage box (3), the bottom end close to one side of the electrifying connector (1) is fixedly connected with an electrifying box (167), the input end of the electrifying box (167) is fixed with the output end of the electrifying connector (1), a communication line is arranged in the electrifying box (167), one end of the communication line is fixedly connected with an electrifying wire harness (166), and the electrifying wire harness (166) is a transmission wire harness between the electrifying connector (1) and the semiconductor chip (15);
a blocking groove (165) is formed in the outer side position of one end of the energizing box (167), the tail end of the blocking groove (165) is used for disconnecting an inner connecting line of the energizing box (167), a triggering block (1610) is connected inside the sliding frame (163) in a sliding mode, a stress protrusion (169) is fixedly connected to one side of the triggering block (1610), a connecting protrusion (164) is fixedly connected to the inner side position of one end outside the stress protrusion (169), and the connecting protrusion (164) is matched with the blocking groove (165);
the outer side of one end of the energizing box (167) is fixedly connected with a compression spring (168), one end of the compression spring (168) is fixed with the outer side of one end outside the stress protrusion (169), one end outside the sliding frame (163) is provided with a rotating notch, the storage box (3) is rotationally connected with a cam column (161) at the position of the rotating notch, and the outer wall of the cam column (161) is contacted with the outer wall of the triggering block (1610);
one end of the trigger block (1610) facing the cam column (161) is of a smooth arc structure, one end of the trigger block (1610) facing the cam column (161) is fixedly connected with a trigger protrusion (1611), a hinge groove (1612) is formed in the outer portion of the cam column (161), and the hinge groove (1612) is matched with the trigger protrusion (1611);
the storage box (3) is of an open box structure, a detachable protective upper cover (5) is arranged at the position of an opening of the storage box (3), an assembly notch is formed in the top of the protective upper cover (5), the assembly notch is opposite to the position of the semiconductor chip (15), and a heat dissipation net (6) is fixedly connected to the protective upper cover (5) at the assembly notch;
one end at the top of the protection upper cover (5) is hinged with a rotatable control disc (7), the bottom of the control disc (7) is fixedly connected with a clamping pin, the top of the cam column (161) is provided with a clamping groove (162), and the clamping pin is matched with the clamping groove (162).
2. A power semiconductor module according to claim 1, characterized in that: the back fixedly connected with stabilizer pin (9) of protection upper cover (5), the inside fixedly connected with stabilizer tube (13) of storage box (3), stabilizer pin (9) and stabilizer tube (13) looks adaptation.
3. A power semiconductor module according to claim 1, characterized in that: the periphery at the top of the upper protection cover (5) is respectively connected with a fixing screw (4) in a rotating mode, screw holes (17) are respectively formed in the periphery at the top of the storage box (3), and the fixing screw (4) is matched with the screw holes (17).
4. A power semiconductor module according to claim 1, characterized in that: the semiconductor chip storage box is characterized in that a positioning seat (14) is fixed at the position of the central point inside the storage box (3), the semiconductor chip (15) is clamped inside the positioning seat (14), and the semiconductor chip (15) is installed on the storage box (3) through the positioning seat (14).
5. A power semiconductor module according to claim 1, characterized in that: one side of the outside of the storage box (3) is fixedly connected with an output connector (8), and the input end of the output connector (8) is fixed with the output end of the output seat (10).
6. A power semiconductor module according to claim 1, characterized in that: the utility model discloses a semiconductor chip, including storing box (3), miniature air exhauster (18), power input end of miniature air exhauster (18) with circular telegram pencil (166) are fixed mutually, one side fixedly connected with connecting harness (12) of miniature air exhauster (18) outside, the one end of connecting harness (12) with the power input end of semiconductor chip (15) is fixed mutually, the inner wall and the external contact of storing box (3) are run through to the exhaust end of miniature air exhauster (18), miniature air exhauster (18) are at the inside fixedly connected with net (2) of airing exhaust of exhaust end.
7. A power semiconductor module according to claim 1, characterized in that: one side of the inside of the storage box (3) is fixedly connected with a wire harness frame (11), and the outer wall of the connecting wire harness (12) is contacted with the inner wall of the wire harness frame (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210524448.8A CN114845499B (en) | 2022-05-13 | 2022-05-13 | Power semiconductor module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210524448.8A CN114845499B (en) | 2022-05-13 | 2022-05-13 | Power semiconductor module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114845499A CN114845499A (en) | 2022-08-02 |
| CN114845499B true CN114845499B (en) | 2024-02-06 |
Family
ID=82570988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210524448.8A Active CN114845499B (en) | 2022-05-13 | 2022-05-13 | Power semiconductor module |
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| Country | Link |
|---|---|
| CN (1) | CN114845499B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115770979B (en) * | 2022-11-24 | 2023-08-22 | 徐州市沂芯微电子有限公司 | Chip packaging detector with welding spot position fine adjustment function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2080306A (en) * | 1934-07-27 | 1937-05-11 | Bosch Robert | Switch control device |
| CN103280763A (en) * | 2013-02-27 | 2013-09-04 | 国网智能电网研究院 | Direct current circuit breaker and realization method thereof |
| CN209659139U (en) * | 2019-05-08 | 2019-11-19 | 赣州鸿康电子科技有限公司 | A kind of high-efficient heat-dissipating electronic transformer |
| CN110828250A (en) * | 2019-11-18 | 2020-02-21 | 曲相霖 | Overcurrent processor for electric power |
-
2022
- 2022-05-13 CN CN202210524448.8A patent/CN114845499B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2080306A (en) * | 1934-07-27 | 1937-05-11 | Bosch Robert | Switch control device |
| CN103280763A (en) * | 2013-02-27 | 2013-09-04 | 国网智能电网研究院 | Direct current circuit breaker and realization method thereof |
| CN209659139U (en) * | 2019-05-08 | 2019-11-19 | 赣州鸿康电子科技有限公司 | A kind of high-efficient heat-dissipating electronic transformer |
| CN110828250A (en) * | 2019-11-18 | 2020-02-21 | 曲相霖 | Overcurrent processor for electric power |
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| Publication number | Publication date |
|---|---|
| CN114845499A (en) | 2022-08-02 |
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