CN219876438U - Stable in structure, explosion-proof enhancement mode circuit board - Google Patents
Stable in structure, explosion-proof enhancement mode circuit board Download PDFInfo
- Publication number
- CN219876438U CN219876438U CN202320927421.3U CN202320927421U CN219876438U CN 219876438 U CN219876438 U CN 219876438U CN 202320927421 U CN202320927421 U CN 202320927421U CN 219876438 U CN219876438 U CN 219876438U
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- Prior art keywords
- circuit board
- explosion
- proof
- sleeve
- connecting rod
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- 238000004880 explosion Methods 0.000 claims abstract description 10
- 230000002265 prevention Effects 0.000 claims abstract 5
- 230000002093 peripheral effect Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000005494 condensation Effects 0.000 claims description 12
- 238000009833 condensation Methods 0.000 claims description 12
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 15
- 230000006378 damage Effects 0.000 abstract description 14
- 230000003139 buffering effect Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model relates to an enhanced circuit board with stable structure and explosion prevention, which comprises explosion-proof shells, connecting rods, a circuit board, a first vibration-proof piece and a second vibration-proof piece, wherein the explosion-proof shells are provided with two explosion-proof shells and are mutually abutted, the end surfaces of the two explosion-proof shells, which are abutted, are respectively provided with a placing cavity for placing the circuit board, the cavity walls of the placing cavities are respectively provided with connecting grooves for inserting the connecting rods, the connecting rods are provided with at least four, the two ends of the connecting rods are respectively positioned in the connecting grooves on the two explosion-proof shells, the circuit board is positioned in the placing cavities, and the circuit board is connected with the connecting rods; the first shockproof piece is located the spread groove, and the second shockproof piece is located between connecting rod and the circuit board, and first shockproof piece and second shockproof piece play cushioning effect to the vertical direction and the horizontal direction of circuit board respectively. The utility model has the effect of avoiding collision or friction of the circuit board caused by vibration as much as possible, thereby reducing the probability of damage of the circuit board.
Description
Technical Field
The utility model relates to the field of circuits, in particular to an explosion-proof reinforced circuit board with a stable structure.
Background
In some special industries, the circuit board needs to be subjected to some explosion-proof treatment so as to avoid the circuit board from being damaged due to accidents as much as possible, and the whole circuit cannot be used.
For example, in a chinese patent with application number CN202023252927.4, the first module includes an anti-riot bottom shell, an anti-riot cover and a circuit board, a mounting groove surface for mounting the circuit board is formed in the anti-riot bottom shell, the anti-riot cover is rotationally connected with the anti-riot bottom shell, and the anti-riot cover encapsulates the mounting groove surface after the anti-riot cover and the anti-riot bottom shell are combined, so as to protect the circuit board.
However, in the above-mentioned technology, when the whole module is in a vibration environment, the circuit boards in the anti-riot cover and the anti-riot bottom shell may collide or rub with the anti-riot cover or the anti-riot bottom shell due to vibration, so that the components on the circuit boards are damaged, and the circuit boards are damaged.
In the related art as described above, there is a defect that the circuit board is damaged due to collision or friction caused by vibration.
Disclosure of Invention
In order to avoid collision or friction of the circuit board caused by vibration as much as possible, thereby reducing the probability of damage of the circuit board, the utility model provides the explosion-proof reinforced circuit board with stable structure.
The utility model provides an explosion-proof reinforced circuit board with stable structure, which adopts the following technical scheme:
a structurally stable, explosion-proof enhanced circuit board comprising: the anti-explosion device comprises an anti-explosion shell, a connecting rod, a circuit board and a first shockproof piece;
the explosion-proof shell is provided with two explosion-proof shells which are mutually abutted, the end faces of the two explosion-proof shells which are abutted are respectively provided with a placing cavity for placing the circuit board, and the cavity walls of the placing cavities are respectively provided with a connecting groove for inserting the connecting rod;
the connecting rods are provided with at least four connecting grooves, and two ends of each connecting rod are respectively positioned in the connecting grooves on the two explosion-proof shells;
the circuit board is positioned in the placing cavity and is connected with the connecting rod;
the first shockproof piece is located in the connecting groove and comprises a sleeve and an elastic ring piece, the sleeve is located in the connecting groove, the inner peripheral wall of the sleeve is in butt joint with the outer peripheral wall of the connecting rod, the elastic ring piece is located between the sleeve and the wall of the connecting groove, and the elastic ring piece is fixedly connected with the outer peripheral wall of the sleeve and the wall of the connecting groove respectively.
Through adopting above-mentioned technical scheme, circuit board and connecting rod are an integer, when whole device is in vibration state, the connecting rod supports tightly in telescopic inner peripheral wall to drive the sleeve and remove along the direction that is close to the elastic ring piece, at this moment, the elastic ring piece is in the shrink state, thereby the elastic ring piece plays a cushioning effect to the connecting rod, consequently make also play a cushioning effect to the circuit board, thereby circuit board and the external vibration power that connects received offset a part by the elasticity trading piece, in order to avoid connecting rod and circuit board to take place the condition emergence of rigid collision with explosion-proof shell as far as possible, the probability of circuit board harm has been reduced.
Preferably, a second shockproof piece is arranged between the connecting rod and the circuit board, the second shockproof piece comprises a fixing block, a connecting block and a buffer spring, the fixing block is provided with two fixing blocks, the fixing blocks are fixedly installed on the peripheral wall of the connecting rod, the connecting block is located between the fixing blocks, a chute for the connecting rod to penetrate through is formed in the connecting block, one side of the connecting block is connected with the circuit board, the buffer spring is provided with two buffer springs, the two buffer springs are sleeved on the connecting rod, and the buffer springs are located between the fixing blocks and the connecting block, and the two ends of the buffer springs are fixedly connected with the fixing blocks and the connecting block respectively.
Through adopting above-mentioned technical scheme, when whole device is in vibration state, the connecting block takes the circuit board to make a round trip to slide on the connecting rod, and reset spring between connecting block and the fixed block all plays a cushioning effect to connecting block and the circuit board, avoids connecting rod and circuit board to take place with the condition of explosion-proof shell to the greatest extent to take place, has further reduced the probability that the circuit board damaged equally.
Preferably, the sleeve in one of the first shock-proof members is fixedly connected with the peripheral wall of the connecting rod.
Through adopting above-mentioned technical scheme, when needs are installed or are dismantled the circuit board, separate two explosion-proof shells, the connecting rod directly slides out in the spread groove easily, leads to the connecting rod to damage because of taking place rigid collision with other article, therefore, one end and one of them sleeve fixed connection of connecting rod to avoid connecting the condition emergence of directly sliding out in the spread groove as far as possible, thereby reduce the probability that the connecting rod damaged.
Preferably, an elastic limiting ring is arranged in the sleeve of the other first shockproof piece, and a clamping groove corresponding to the elastic limiting ring is formed in the peripheral wall of the connecting rod.
By adopting the technical scheme, when two explosion-proof shells are required to be separated, the part which is not connected between the two explosion-proof shells can cause one explosion-proof shell to directly slide away from the other explosion-proof shell, so that one explosion-proof shell and other objects are rigidly collided to damage the other explosion-proof shell, and the sleeve is clamped with the connecting rod through the elastic limiting ring, so that one explosion-proof shell can be prevented from directly sliding away from the other explosion-proof shell, and the damage probability of the explosion-proof shells is further reduced; if the two explosion-proof shells are required to be separated, the two explosion-proof shells only need to be slightly moved in the direction away from each other by force, the elastic limiting block deforms, and the connecting rod slides out of the sleeve.
Preferably, the sleeve is connected with a guide pipe along one end close to the fixed block, the inner diameter of the guide pipe is gradually increased along the direction away from the sleeve, and one end, close to the sleeve, of the guide pipe is abutted to the cavity wall of the placement cavity.
By adopting the technical scheme, when the connecting rod is required to be inserted into the sleeve, the guide pipe plays a guide role on the connection, so that the connecting rod is convenient to be inserted into the sleeve; in addition, the guide tube is close to telescopic one end and places the chamber wall butt in chamber to as far as possible avoid the dust to get into between sleeve and the spread groove cell wall, the deformation volume that leads to elasticity ring piece to take place reduces, reduces the annular cushioning effect's of elasticity condition and takes place.
Preferably, the explosion-proof shell is provided with a heat dissipation piece, and the heat dissipation piece is used for reducing the temperature of the circuit board.
Through adopting above-mentioned technical scheme, when the circuit board during operation, the temperature of circuit board rises and the circuit board is in a relatively confined and places the chamber, leads to the circuit board to damage easily, therefore the setting of radiating piece can reduce the temperature of circuit board to reduce the probability of circuit damage.
Preferably, the heat dissipation part comprises a condensation pipe, condensed water is filled in the condensation pipe, one end of the condensation pipe is positioned in the placing cavity, and the other end of the condensation pipe is positioned outside the explosion-proof shell.
Through adopting above-mentioned technical scheme, when the circuit board generates heat, the interior comdenstion water of condenser pipe that is located the place chamber absorbs the heat of circuit board, then in the comdenstion water in the outer condenser pipe of heat transfer to explosion-proof shell, and the comdenstion water in the outer condenser pipe of explosion-proof shell looses the heat again through the air to this circulation to the realization radiating piece is to the cooling effect of circuit board.
Preferably, a plurality of grooves are formed in the inner pipe wall of the condensation pipe.
By adopting the technical scheme, the inner wall area of the condensing pipe is increased by the grooves, so that the heat dissipation area of condensed water is increased, and the heat dissipation efficiency of the heat dissipation piece is improved.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. the first shockproof piece and the second shockproof piece are arranged to buffer the circuit board in the horizontal direction and in the vertical direction respectively, so that the situation that the connecting rod and the circuit board are rigidly collided with the explosion-proof shell is avoided as much as possible, and the damage probability of the circuit board is reduced;
2. the guide tube plays a guide role on the connecting rod so as to facilitate the connecting rod to be inserted into the sleeve; in addition, the guide pipe can avoid dust entering between the sleeve and the wall of the connecting groove as much as possible, so that the deformation quantity of the elastic ring piece can be reduced, and the buffer effect of the elastic ring piece is reduced;
3. the condensed water in the condensing pipe absorbs heat of the circuit board, then the heat is transferred to the condensed water in the condensing pipe outside the explosion-proof shell, and the condensed water in the condensing pipe outside the explosion-proof shell dissipates the heat through air, so that the circulation is realized, and the cooling effect of the heat dissipation piece on the circuit board is realized.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present utility model.
Fig. 2 is a schematic diagram showing connection between the explosion-proof housing and the circuit board in the embodiment of the present utility model.
Fig. 3 is an enlarged view at a in fig. 2.
Fig. 4 is a schematic view of the connection of the sleeve and the connecting rod in an embodiment of the utility model.
Fig. 5 is a schematic diagram showing connection of the explosion-proof housing and the condensation duct in the embodiment of the present utility model.
Fig. 6 is a schematic structural view of a condenser tube in an embodiment of the present utility model.
In the figure: 1. an explosion-proof housing; 11. a placement cavity; 12. a connecting groove; 2. a connecting rod; 21. a clamping groove; 3. a circuit board; 4. a first shock-absorbing member; 41. a sleeve; 42. an elastic ring piece; 5. a second shock-absorbing member; 51. a fixed block; 52. a connecting block; 521. a chute; 53. a buffer spring; 6. an elastic limit ring; 7. a guide tube; 8. a heat sink; 81. a condensing tube; 811. a groove.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-6.
The embodiment of the utility model discloses an explosion-proof enhanced circuit board with a stable structure. Referring to fig. 1 and 2, a structurally stable, explosion-proof enhanced circuit board includes an explosion-proof housing 1, a connection rod 2, a circuit board 3, and first and second shock-proof members 4 and 5.
Wherein, referring to fig. 2 and 3, the explosion-proof shell 1 is provided with two, and two explosion-proof shells 1 are laid relatively and are mutually abutted, and the placing cavity 11 of placing the circuit board 3 has all been seted up to the terminal surface of two explosion-proof shells 1 butt, and all has seted up on the placing cavity 11 chamber wall on two explosion-proof shells 1 and supplied connecting rod 2 male spread groove 12.
The connecting rods 2 are provided with at least four, preferably four in this embodiment, and the four connecting rods 2 are all arranged in the vertical direction and are located at the four corners of the placement cavity 11 respectively. The two ends of the connection are respectively positioned in the connecting grooves 12 on the two explosion-proof shells 1, so eight corresponding connecting grooves 12 are arranged.
The circuit board 3 is located in the placement cavity 11, and the circuit board 3 is connected with the connecting rod 2.
Next, referring to fig. 2 and 3, the first vibration preventing member 4 includes a sleeve 41 and an elastic ring piece 42.
The sleeve 41 is positioned in the connecting groove 12 and the inner peripheral wall of the sleeve 41 abuts against the outer peripheral wall of the connecting rod 2. The elastic ring piece 42 is located between the sleeve 41 and the wall of the connecting groove 12, and the elastic ring piece 42 is fixedly connected with the outer peripheral wall of the sleeve 41 and the wall of the connecting groove 12, respectively. The cross section of the elastic ring piece 42 is wave-shaped, and the vertex of the wave is fixedly connected with the sleeve 41 or the groove wall of the connecting groove 12.
In addition, referring to fig. 2 and 3, the second vibration preventing member 5 includes a fixed block 51, a connection block 52, and a buffer spring 53.
The two fixing blocks 51 are arranged oppositely, the two fixing blocks 51 are coaxially and fixedly arranged on the connecting rod 2, the connecting block 52 is positioned between the two fixing blocks 51, a chute 521 for the connecting rod 2 to penetrate is formed in the connecting block 52, and one side of the connecting block 52 is connected with the circuit board 3.
The connection mode of the connection block 52 and the circuit board 3 may be welding, or may be glue or bolt connection, in this embodiment, bolt connection is preferred, so that not only the connection strength is high, but also the installation or the disassembly is convenient.
The buffer springs 53 are arranged in two, the buffer springs 53 are sleeved on the connecting rod 2, the buffer springs 53 are located between the fixed block 51 and the connecting block 52, and two ends of the buffer springs 53 are fixedly connected with the fixed block 51 and the connecting block 52 respectively.
In summary, when the whole device is in a vibration state, the connection block 52 slides between the two fixing blocks 51 along the vertical direction, so as to drive the circuit board 3 to move in the placement cavity 11 along the vertical direction, and the buffer spring 53 plays a role in buffering the connection block 52 and the circuit board 3, so as to avoid the collision of the circuit board 3 as much as possible; in addition, the connecting rod 2 presses the sleeve 41 in the horizontal direction, so that the sleeve 41 is driven to press the elastic ring piece 42, and the elastic ring piece 42 contracts, so that a buffer effect is provided for the connecting rod 2, and thus a buffer effect is provided for the circuit board 3. Finally, the whole device plays a role in buffering the circuit board 3 in the vertical direction and the horizontal direction, so that the occurrence of collision between the circuit board 3 and other objects is avoided as much as possible, and the probability of damage to the circuit board 3 is reduced.
In order to reduce the probability of damage to the connecting rod 2, the sleeve 41 located in one of the explosion-proof housings 1 is fixedly connected with the peripheral wall of the connecting rod 2, so that the connecting rod 2 cannot slide out of the connecting groove 12 directly when being detached or installed, and the situation that the connecting rod 2 collides with other objects due to the fact that the connecting rod slides out directly is avoided as much as possible.
Referring to fig. 3 and 4, in order to reduce the damage probability of the explosion-proof housing 1, an elastic limiting ring 6 is disposed in a sleeve 41 in the other explosion-proof housing 1, and a clamping groove 21 clamped with the elastic limiting ring 6 is formed on the outer circumferential wall of the connecting rod 2. When the two explosion-proof housings 1 are detached or installed, the two explosion-proof housings 1 are not directly separated, and a little force is required to move the two explosion-proof housings 1 in a direction away from each other, so that the elastic limit ring 6 is deformed and slides out of the clamping groove 21, and the connecting rod 2 slides out of the sleeve 41. Thereby avoiding the occurrence of the situation that the two explosion-proof housings 1 are directly separated to fall down to the bottom surface.
Referring to fig. 2 and 4, in order to facilitate insertion of the connection rod 2 into the sleeve 41, the sleeve 41 is connected with the guide tube 7 along one end close to the fixed block 51, and the inner diameter of the guide tube 7 is gradually increased in a direction away from the sleeve 41; in addition, the end of the guide tube 7 near the sleeve 41 is abutted against the cavity wall of the placement cavity 11, so that dust can be prevented from entering between the groove wall of the connecting groove 12 and the sleeve 41 as much as possible, the deformation amount of the elastic ring piece 42 is reduced, and the buffering effect of the elastic ring piece 42 is reduced.
Referring to fig. 2 and 5, in order to avoid damage to the circuit board 3 due to excessive temperature as much as possible, the explosion-proof housing 1 is provided with a heat sink 8. The heat sink 8 includes a condenser tube 81.
The condenser pipe 81 is an annular pipe, condensed water is filled in the condenser pipe 81, one end of the condenser pipe 81 is positioned in the placing cavity 11 and is close to the circuit board 3, and the other end of the condenser pipe 81 is positioned outside the explosion-proof shell 1.
When the circuit board 3 heats, the condensed water in the condensing tube 81 of the placing cavity 11 absorbs the heat of the circuit board 3, then the heat is transferred to the condensed water in the condensing tube 81 outside the explosion-proof shell 1, and the condensed water in the condensing tube 81 outside the explosion-proof shell 1 dissipates the heat through the air, so that the circulation is realized, and the cooling effect of the heat dissipation part 8 on the circuit board 3 is realized.
Referring to fig. 6, in order to improve the heat radiation efficiency of the heat radiation member 8, a plurality of grooves 811 are provided on the inner wall of the condensation duct 81. The groove 811 increases the inner wall area of the condensation duct 81, thereby increasing the heat dissipation area of the condensed water.
The implementation principle of the stable-structure explosion-proof enhanced circuit board provided by the embodiment of the utility model is as follows: when the whole device is in a vibration state, the connecting block 52 slides between the two fixed blocks 51 along the vertical direction, so that the circuit board 3 is driven to move in the placing cavity 11 along the vertical direction, and the buffer spring 53 plays a role in buffering the connecting block 52 and the circuit board 3, so that the circuit board 3 is prevented from being collided as much as possible; in addition, the connecting rod 2 presses the sleeve 41 in the horizontal direction, so that the sleeve 41 is driven to press the elastic ring piece 42, and the elastic ring piece 42 contracts, so that a buffer effect is provided for the connecting rod 2, and thus a buffer effect is provided for the circuit board 3. Finally, the whole device plays a role in buffering the circuit board 3 in the vertical direction and the horizontal direction, so that the occurrence of collision between the circuit board 3 and other objects is avoided as much as possible, and the probability of damage to the circuit board 3 is reduced.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. A structurally stable, explosion-proof enhanced circuit board comprising: the anti-explosion device comprises an anti-explosion shell (1), a connecting rod (2), a circuit board (3) and a first shockproof piece (4);
the explosion-proof housing (1) is provided with two explosion-proof housings which are mutually abutted, the end faces of the two explosion-proof housings (1) abutted are provided with a placing cavity (11) for placing the circuit board (3), and the cavity walls of the placing cavity (11) are provided with connecting grooves (12) for inserting the connecting rods (2);
at least four connecting rods (2) are arranged, and two ends of each connecting rod (2) are respectively positioned in connecting grooves (12) on two explosion-proof shells (1);
the circuit board (3) is positioned in the placing cavity (11), and the circuit board (3) is connected with the connecting rod (2);
the first shockproof piece (4) is located in the connecting groove (12), the first shockproof piece (4) comprises a sleeve (41) and an elastic ring piece (42), the sleeve (41) is located in the connecting groove (12) and the inner peripheral wall of the sleeve (41) is abutted to the outer peripheral wall of the connecting rod (2), the elastic ring piece (42) is located between the sleeve (41) and the wall of the connecting groove (12), and the elastic ring piece (42) is fixedly connected with the outer peripheral wall of the sleeve (41) and the wall of the connecting groove (12) respectively.
2. The reinforced circuit board with stable structure and explosion prevention according to claim 1, wherein a second shockproof piece (5) is arranged between the connecting rod (2) and the circuit board (3), the second shockproof piece (5) comprises two fixing blocks (51), two connecting blocks (52) and buffer springs (53), the fixing blocks (51) are fixedly arranged on the peripheral wall of the connecting rod (2), the connecting blocks (52) are arranged between the two fixing blocks (51), a chute (521) for the connecting rod (2) to penetrate is formed in the connecting blocks (52), one side of each connecting block (52) is connected with the circuit board (3), the buffer springs (53) are arranged between the fixing blocks (51) and the connecting blocks (52) in a sleeved mode, and two ends of each buffer spring (53) are fixedly connected with the fixing blocks (51) and the corresponding connecting blocks (52) respectively.
3. A structurally stable, explosion-proof enhanced circuit board according to claim 1, characterized in that a sleeve (41) in one of the first shock-absorbing members (4) is fixedly connected to the peripheral wall of the connecting rod (2).
4. A structurally stable and explosion-proof enhanced circuit board according to claim 3, characterized in that an elastic limiting ring (6) is arranged in a sleeve (41) in the other first shockproof piece (4), and a clamping groove (21) corresponding to the elastic limiting ring (6) is formed in the peripheral wall of the connecting rod (2).
5. A structurally stable, explosion-proof enhanced circuit board according to claim 2, characterized in that said sleeve (41) is connected with a guiding tube (7) along one end close to said fixed block (51), the inner diameter of said guiding tube (7) is gradually increased from the direction away from said sleeve (41), and the end of said guiding tube (7) close to said sleeve (41) is in abutment with the cavity wall of said placement cavity (11).
6. The reinforced circuit board with stable structure and explosion prevention according to claim 1, wherein the explosion-proof housing (1) is provided with a heat dissipation element (8), and the heat dissipation element (8) is used for reducing the temperature of the circuit board (3).
7. The reinforced circuit board with stable structure and explosion prevention according to claim 6, wherein the heat dissipation element (8) comprises a condensation pipe (81), condensed water is filled in the condensation pipe (81), one end of the condensation pipe (81) is located in the placing cavity (11), and the other end of the condensation pipe (81) is located outside the explosion prevention shell (1).
8. A structurally stable, explosion proof enhanced circuit board according to claim 7, characterized in that the inner wall of the condenser tube (81) is provided with a number of grooves (811).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320927421.3U CN219876438U (en) | 2023-04-12 | 2023-04-12 | Stable in structure, explosion-proof enhancement mode circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320927421.3U CN219876438U (en) | 2023-04-12 | 2023-04-12 | Stable in structure, explosion-proof enhancement mode circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219876438U true CN219876438U (en) | 2023-10-20 |
Family
ID=88342826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320927421.3U Active CN219876438U (en) | 2023-04-12 | 2023-04-12 | Stable in structure, explosion-proof enhancement mode circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219876438U (en) |
-
2023
- 2023-04-12 CN CN202320927421.3U patent/CN219876438U/en active Active
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