CN114447852B - Electric junction box for PLC control cabinet - Google Patents
Electric junction box for PLC control cabinet Download PDFInfo
- Publication number
- CN114447852B CN114447852B CN202210196489.9A CN202210196489A CN114447852B CN 114447852 B CN114447852 B CN 114447852B CN 202210196489 A CN202210196489 A CN 202210196489A CN 114447852 B CN114447852 B CN 114447852B
- Authority
- CN
- China
- Prior art keywords
- heat
- heat absorption
- absorption cavity
- cavity
- box body
- 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.)
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Links
- 238000010521 absorption reaction Methods 0.000 claims abstract description 64
- 230000017525 heat dissipation Effects 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000012153 distilled water Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000000670 limiting effect Effects 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 239000007769 metal material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
-
- 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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
-
- 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
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses an electric junction box for a PLC control cabinet, which comprises: the box body is internally provided with a circuit substrate in a suspending manner, and a wire connector of the circuit substrate is clamped on the side wall of one side of the box body; at least a set of radiator unit, radiator unit sets up in the box body top, and is located circuit substrate top, radiator unit includes the vertical heating panel that a plurality of intervals set up, and the interval is equipped with the heat absorption cavity of a plurality of bars on every heating panel, the heat absorption cavity intussuseption is filled with distilled water, distilled water surface of water with heat absorption cavity top surface has certain clearance, the interval has held a plurality of gasbags in the heat absorption cavity, the gasbag intussuseption is filled with gas, the size of gasbag is slightly less than heat absorption cavity width, the material of gasbag has expansion elasticity. The invention has the beneficial effect that the heat generated by the circuit substrate is utilized to improve the heat dissipation speed of the circuit substrate when no external force acts.
Description
Technical Field
The invention relates to the technical field of heat dissipation of an electric junction box. More particularly, the present invention relates to an electrical junction box for a PLC control cabinet.
Background
An electrical junction box for a PLC control cabinet generally includes a box body, a circuit substrate mounted in the box body, and a wire connector connected to the circuit substrate. When needs are connected, only need with the electric wire be connected to the line connector can, convenient and fast, the box body is used for protecting circuit substrate and bearing line connector, because circuit substrate parcel is in the box body, in the power consumption in-process, the heat that circuit substrate produced is difficult to dispel, leads to circuit substrate temperature too high easily, and burns out the circuit.
Disclosure of Invention
It is an object of the present invention to solve at least the above problems and to provide at least the advantages to be described later.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided an electrical junction box for a PLC control cabinet, comprising:
the box body is internally provided with a circuit substrate in a suspending manner, and a wire connector of the circuit substrate is clamped on the side wall of one side of the box body;
at least a set of radiator unit, radiator unit sets up in the box body top, and is located circuit substrate top, radiator unit includes the vertical heating panel that a plurality of intervals set up, and the interval is equipped with the heat absorption cavity of a plurality of bars on every heating panel, the heat absorption cavity intussuseption is filled with distilled water, distilled water surface of water with heat absorption cavity top surface has certain clearance, the interval has held a plurality of gasbags in the heat absorption cavity, the gasbag intussuseption is filled with gas, the size of gasbag is slightly less than heat absorption cavity width, the material of gasbag has expansion elasticity.
Preferably, the heat dissipation plate is in a wave shape, and the plurality of air bags are positioned near the wave crest and the wave trough of the wave shape of the heat dissipation plate.
Preferably, the two groups of heat dissipation components are respectively positioned at the top and the bottom of the box body.
Preferably, one end of the heat absorbing cavity is hinged with the heat radiating plate;
still include a plurality of positioning components, a plurality of positioning components and a plurality of heat absorption cavity one-to-one, every positioning component includes:
one end of each hanging rope is arranged above the corresponding heat absorption cavity at intervals, and the other end of each hanging rope is fastened on the side wall of the corresponding heat absorption cavity at intervals;
the heat absorption device comprises a heat absorption cavity, a limiting column cavity, a positioning air bag and a positioning air bag, wherein the limiting column cavity is arranged below the free end of the corresponding heat absorption cavity, the upper end face of the limiting column cavity is open, the positioning air bag is arranged in the limiting column cavity and filled with gas, when the heat absorption cavity is in a horizontal state, the upper end of the positioning air bag is in contact with the bottom of the heat absorption cavity, when the positioning air bag is heated, the air bag expands upwards, and the free end of the heat absorption cavity moves upwards.
Preferably, the method further comprises:
a filter which is arranged on the side wall of the box body and is communicated with the outside of the box body, and the filter is positioned at one end of an airflow channel formed by a plurality of radiating plates;
the exhaust fan is arranged on the side wall of the box body and communicated with the filter, and the air outlet end of the exhaust fan faces one end of an air flow channel formed by a plurality of heat dissipation plates;
the side wall of the box body, which is positioned at one side opposite to the exhaust fan, is provided with a plurality of air outlet holes.
Preferably, the air outlet hole is in a strip shape.
Preferably, the heat dissipation plate and the heat absorption cavity are both made of metal.
Preferably, the inner wall of the heat absorbing cavity is smooth.
Preferably, the air bag is ellipsoidal, the radial section of the heat absorbing cavity is circular, and the diameter of the heat absorbing space is 1-1.5 cm.
Preferably, the top and the bottom of the box body are provided with a plurality of groups of clamping grooves, and the heat dissipation plate is clamped on the clamping grooves. .
The invention at least comprises the following beneficial effects: the heat radiation plate can quickly absorb the heat generated in the box body, and the heat is transferred to the outside of the box body through the solid-to-solid heat transfer effect to radiate. The heat absorption cavity accommodates a certain amount of distilled water, the heat absorption coefficient of the water is large, and when the temperature difference exists, a large amount of heat can be absorbed from the outside, so that the heat absorption cavity and the distilled water are matched to quickly absorb a large amount of heat of the circuit substrate in the box body, and the effect of reducing the temperature rise of the circuit substrate is achieved. Under the action of no external force, the heat of the circuit substrate can be quickly and effectively absorbed and conducted to the outside of the box body, so that the effect of protecting the circuit basic board is achieved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic perspective view of the electrical junction box according to one embodiment of the present invention;
fig. 2 is a schematic distribution diagram of the heat dissipation plate according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of the distribution of the heat absorbing cavities according to one embodiment of the present invention;
FIG. 4 is a detailed view of the positioning assembly according to one embodiment of the present invention;
fig. 5 is a schematic top view of the electrical junction box according to one embodiment of the present invention;
fig. 6 is a schematic side view of the wire connector according to one embodiment of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present invention, the orientation or positional relationship indicated by the terms are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
As shown in fig. 1 to 6, the present invention provides an electrical junction box for a PLC control cabinet, comprising:
the box body 1 is internally provided with a circuit substrate 2 in a suspending manner, and a wire connector 3 of the circuit substrate 2 is clamped on the side wall of one side of the box body 1;
at least a set of radiator unit 100, radiator unit 100 sets up in box body 1 top, and is located circuit substrate 2 top, radiator unit 100 includes the vertical heating panel 4 that a plurality of intervals set up, and the interval is equipped with the heat absorption cavity 5 of a plurality of bars on every heating panel 4, heat absorption cavity 5 intussuseption is filled with distilled water, distilled water surface of water with heat absorption cavity 5 top surface has certain clearance, heat absorption cavity 5 intussuseption interval holds a plurality of gasbags 6, the intussuseption of gasbag 6 is filled with gas, the size of gasbag 6 is slightly less than heat absorption cavity 5 width, the material of gasbag 6 has expansion elasticity.
In the above technical solution, the heat dissipation plate 4 of the heat dissipation assembly 100 can quickly absorb the heat generated in the box body 1, and transfer the heat to the outside of the box body 1 for dissipating the heat through the heat transfer from solid to solid, and the heat dissipation plate 4 is usually made of metal or a material with high thermal conductivity. The heat absorption cavity 5, i.e. a cavity, on the heat dissipation assembly 100 is usually made of metal materials, a certain amount of distilled water is contained in the heat absorption cavity, the heat absorption coefficient of the water is large, and when a temperature difference exists, a large amount of heat can be absorbed from the outside, so that the heat absorption cavity 5 and distilled water can be matched to absorb a large amount of heat of the circuit substrate 2 in the box body 1 rapidly, and the effect of reducing the temperature rise of the circuit substrate 2 is achieved. The air bag 6 floats in distilled water, and when the air bag 6 is heated and expanded, on one hand, the air bag 6 is expanded by itself to absorb heat, so that the effect of absorbing the heat is achieved, and on the other hand, the expansion of the air bag 6 can cause the shaking of the distilled water in the heat absorption cavity 5, so that the heat conduction speed is also improved. By combining the technical means, under the action of no external force, the heat of the circuit substrate 2 can be quickly and effectively absorbed and conducted to the outside of the box body 1 in the box body 1, so that the effect of protecting the circuit basic board is achieved.
In another embodiment, the heat dissipation plate 4 is in a wave shape, and the plurality of air bags 6 are located near the wave-shaped wave crests and wave troughs of the heat dissipation plate 4. The provision of the wave shape and the arrangement of the balloon 6 at the positions of the wave crests and wave troughs can increase the degree of shaking of the distilled water caused by the expansion of the balloon 6, thereby increasing the heat conduction efficiency.
In another embodiment, the heat dissipation assemblies 100 are two groups, and the two groups of heat dissipation assemblies 100 are respectively located at the top and the bottom of the box body 1. The heat dissipation can be carried out on the basic lower surface of the circuit at the same time, and the heat dissipation speed is further improved.
In another technical scheme, one end of the heat absorbing cavity 5 is hinged with the heat dissipation plate 4;
the heat absorption cavity 5 is located to a plurality of heat absorption cavity 5, and every heat absorption cavity includes:
one end of each hanging rope 7 is arranged above the corresponding heat absorption cavity 5 at intervals, and the other end of each hanging rope 7 is fastened on the side wall of the corresponding heat absorption cavity 5 at intervals; alternatively, a sleeve is arranged to be sleeved on the outer wall of the heat absorption cavity 5, and then the hanging rope 7 is fastened on the sleeve
The spacing post chamber 8, it sets up in the below of the free end of the heat absorption cavity 5 that corresponds, spacing post chamber 8 up end is opened, be provided with the position adjustment gasbag 9 in the spacing post chamber 8, the intussuseption of position adjustment gasbag 9 has gas, works as when heat absorption cavity 5 is the horizontality, position adjustment gasbag 9 upper end with heat absorption cavity 5 bottom contact, works as when position adjustment gasbag 9 is heated, position adjustment gasbag 9 upwards expands, the free end of heat absorption cavity 5 upwards moves.
In the above technical scheme, when water flows, the heat conduction speed can be obviously accelerated, so in order to further increase the shaking effect of water flow, a positioning component is arranged, when the temperature in the box body 1 rises, the inside of the positioning air bag 9 is gas and can expand very quickly, the positioning air bag 9 can only expand upwards under the limiting effect of the limiting column cavity 8, therefore, the free end of the heat absorption cavity 5 can be pushed to move upwards, the other end of the heat absorption cavity 5 is hinged, the rotation is performed, the state that the free end is arranged at the rotating end is formed, distilled water in the heat absorption cavity 5 can flow from the free end towards the rotating end, so that the shaking effect of the distilled water is obviously promoted, and the heat dissipation speed can be improved.
In another technical scheme, the method further comprises the following steps:
a filter 10 provided on a side wall of the case 1 and communicating with the outside of the case 1, the filter 10 being located at one end of an air flow passage formed by the plurality of heat dissipation plates 4;
an exhaust fan 11 provided on a side wall of the case 1 and communicating with the filter 10, an air outlet end of the exhaust fan 11 facing one end of an air flow passage formed by the plurality of heat dissipation plates 4;
the side wall of the box body 1, which is positioned at one side opposite to the exhaust fan 11, is provided with a plurality of air outlet holes 12.
In the above technical scheme, after the exhaust fan 11 is started, air is pumped into the box body 1 from the outside through the filter 10, then flows out from the air outlet hole 12 on the other side of the box body 1, accelerates the air circulation inside the box body 1, discharges hot air in the box body 1, pumps cold air outside the box body 1, and achieves the effect of radiating and cooling the circuit substrate 2.
In another embodiment, the air outlet 12 is in a shape of a long strip. The long-strip-shaped air outlet hole 12 is beneficial to exhausting the air in the box body 1.
In another technical scheme, the heat dissipation plate 4 and the heat absorption cavity 5 are both made of metal materials. The heat conductivity of the metal material is high, so that the heat dissipation performance of the heat dissipation plate 4 and the heat absorption cavity 5 can be improved.
In another embodiment, the inner wall of the heat absorbing cavity 5 is smooth. Facilitating the movement of the distilled water and the balloon 6.
In another technical scheme, the air bag 6 is in an ellipsoidal shape, the radial section of the heat absorbing cavity 5 is in a circular shape, and the diameter of the heat absorbing space is 1-1.5 cm. Facilitating the movement of the balloon 6 inside the endothermic cavity 5 and facilitating the absorption of heat by the distilled water and balloon 6 from inside the case 1.
In another technical scheme, the top and the bottom of the box body 1 are provided with a plurality of groups of clamping grooves, and the heat dissipation plate 4 is clamped on the clamping grooves. Realize the detachable connection of heating panel 4, make things convenient for the installation and the dismantlement of heating panel 4.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (9)
1. An electrical junction box for a PLC control cabinet, comprising:
the box body is internally provided with a circuit substrate in a suspending manner, and a wire connector of the circuit substrate is clamped on the side wall of one side of the box body;
the heat dissipation assembly is arranged at the top of the box body and is positioned above the circuit substrate, the heat dissipation assembly comprises a plurality of vertical heat dissipation plates which are arranged at intervals, a plurality of strip-shaped heat absorption cavities are arranged on each heat dissipation plate at intervals, distilled water is filled in each heat absorption cavity, a certain gap is reserved between the distilled water surface and the top surface of each heat absorption cavity, a plurality of air bags are accommodated in each heat absorption cavity at intervals, gas is filled in each air bag, the size of each air bag is slightly smaller than the width of each heat absorption cavity, and the material of each air bag has expansion and retractility;
one end of the heat absorption cavity is hinged with the heat dissipation plate;
still include a plurality of positioning components, a plurality of positioning components and a plurality of heat absorption cavity one-to-one, every positioning component includes:
one end of each hanging rope is arranged above the corresponding heat absorption cavity at intervals, and the other end of each hanging rope is fastened on the side wall of the corresponding heat absorption cavity at intervals;
the heat absorption device comprises a heat absorption cavity, a limiting column cavity, a positioning air bag and a positioning air bag, wherein the limiting column cavity is arranged below the free end of the corresponding heat absorption cavity, the upper end face of the limiting column cavity is open, the positioning air bag is arranged in the limiting column cavity and filled with gas, when the heat absorption cavity is in a horizontal state, the upper end of the positioning air bag is in contact with the bottom of the heat absorption cavity, when the positioning air bag is heated, the air bag expands upwards, and the free end of the heat absorption cavity moves upwards.
2. The electrical junction box for a PLC control cabinet of claim 1, wherein the heat sink has a wave shape, and a plurality of air cells are located near peaks and valleys of the wave shape of the heat sink.
3. The electrical junction box for a PLC control cabinet of claim 1, wherein the heat dissipating components are in two groups, the two groups of heat dissipating components being located at the top and bottom of the box, respectively.
4. The electrical junction box for a PLC control cabinet of claim 1, further comprising:
a filter which is arranged on the side wall of the box body and is communicated with the outside of the box body, and the filter is positioned at one end of an airflow channel formed by a plurality of radiating plates;
the exhaust fan is arranged on the side wall of the box body and communicated with the filter, and the air outlet end of the exhaust fan faces one end of an air flow channel formed by a plurality of heat dissipation plates;
the side wall of the box body, which is positioned at one side opposite to the exhaust fan, is provided with a plurality of air outlet holes.
5. The electrical junction box for a PLC control cabinet of claim 4, wherein the air outlet is elongated.
6. The electrical junction box for a PLC control cabinet of claim 1, wherein the heat sink and the heat sink cavity are both made of metal.
7. The electrical junction box for a PLC control cabinet of claim 1, wherein the interior wall of the heat absorbing cavity is smooth.
8. The electrical junction box for a PLC control cabinet according to claim 1, wherein the air bag is in an ellipsoidal shape, the radial cross section of the heat absorbing cavity is circular, and the diameter of the heat absorbing cavity is 1 to 1.5cm.
9. The electrical junction box for a PLC control cabinet according to claim 1, wherein the top and bottom of the box body are provided with a plurality of sets of clamping grooves, and the heat dissipating plate is clamped on the clamping grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210196489.9A CN114447852B (en) | 2022-03-01 | 2022-03-01 | Electric junction box for PLC control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210196489.9A CN114447852B (en) | 2022-03-01 | 2022-03-01 | Electric junction box for PLC control cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114447852A CN114447852A (en) | 2022-05-06 |
| CN114447852B true CN114447852B (en) | 2024-02-09 |
Family
ID=81358992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210196489.9A Active CN114447852B (en) | 2022-03-01 | 2022-03-01 | Electric junction box for PLC control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114447852B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6627814B1 (en) * | 2002-03-22 | 2003-09-30 | David H. Stark | Hermetically sealed micro-device package with window |
| CN108037815A (en) * | 2017-12-21 | 2018-05-15 | 重庆酋创科技有限公司 | Notebook computer radiating device |
| CN207801862U (en) * | 2018-01-02 | 2018-08-31 | 东旭新能源投资有限公司 | Junction box for photovoltaic module |
| CN110429536A (en) * | 2019-08-14 | 2019-11-08 | 合肥易知谷信息科技有限公司 | A kind of network engineering junction box |
| CN209675040U (en) * | 2019-04-25 | 2019-11-22 | 江苏海川电气制造股份有限公司 | A kind of transformer terminal box with heat sinking function |
| CN210350707U (en) * | 2019-08-26 | 2020-04-17 | 江苏瀚网智能科技有限公司 | Security protection intelligent network wiring case |
| CN111212516A (en) * | 2020-01-07 | 2020-05-29 | 杨俊� | Power chip packaging structure |
| CN111490465A (en) * | 2019-12-31 | 2020-08-04 | 南通宁海机械电器有限公司 | Prevent non-standard distribution cabinet of accuse temperature dehumidification of condensation |
| CN113517113A (en) * | 2021-09-13 | 2021-10-19 | 江苏亨特集团华特电气有限公司 | Water flow curtain wall type dustproof cooling transformer |
| CN215300074U (en) * | 2021-05-26 | 2021-12-24 | 上海劲变电气制造有限公司 | Cable connection cabinet for photovoltaic power generation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090114413A1 (en) * | 2007-11-07 | 2009-05-07 | Daviau William A | Insulated Housing |
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2022
- 2022-03-01 CN CN202210196489.9A patent/CN114447852B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6627814B1 (en) * | 2002-03-22 | 2003-09-30 | David H. Stark | Hermetically sealed micro-device package with window |
| CN108037815A (en) * | 2017-12-21 | 2018-05-15 | 重庆酋创科技有限公司 | Notebook computer radiating device |
| CN207801862U (en) * | 2018-01-02 | 2018-08-31 | 东旭新能源投资有限公司 | Junction box for photovoltaic module |
| CN209675040U (en) * | 2019-04-25 | 2019-11-22 | 江苏海川电气制造股份有限公司 | A kind of transformer terminal box with heat sinking function |
| CN110429536A (en) * | 2019-08-14 | 2019-11-08 | 合肥易知谷信息科技有限公司 | A kind of network engineering junction box |
| CN210350707U (en) * | 2019-08-26 | 2020-04-17 | 江苏瀚网智能科技有限公司 | Security protection intelligent network wiring case |
| CN111490465A (en) * | 2019-12-31 | 2020-08-04 | 南通宁海机械电器有限公司 | Prevent non-standard distribution cabinet of accuse temperature dehumidification of condensation |
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| CN215300074U (en) * | 2021-05-26 | 2021-12-24 | 上海劲变电气制造有限公司 | Cable connection cabinet for photovoltaic power generation system |
| CN113517113A (en) * | 2021-09-13 | 2021-10-19 | 江苏亨特集团华特电气有限公司 | Water flow curtain wall type dustproof cooling transformer |
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| Publication number | Publication date |
|---|---|
| CN114447852A (en) | 2022-05-06 |
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