CN114447852A - Electric junction box for PLC control cabinet - Google Patents
Electric junction box for PLC control cabinet Download PDFInfo
- Publication number
- CN114447852A CN114447852A CN202210196489.9A CN202210196489A CN114447852A CN 114447852 A CN114447852 A CN 114447852A CN 202210196489 A CN202210196489 A CN 202210196489A CN 114447852 A CN114447852 A CN 114447852A
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- CN
- China
- Prior art keywords
- heat
- heat absorption
- absorption cavity
- box body
- cavity
- 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.)
- Granted
Links
- 238000010521 absorption reaction Methods 0.000 claims abstract description 61
- 230000017525 heat dissipation Effects 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000012153 distilled water Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 208000002925 dental caries Diseases 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses an electric junction box for a PLC control cabinet, which comprises: the circuit board connector 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 the 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 intussuseption of heat absorption cavity is filled with the distilled water, the 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 slightly is less than heat absorption cavity width, the material of gasbag has the expansion flexibility. The invention has the beneficial effect of improving the heat dissipation speed of the circuit substrate by using the heat generated by 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 connect, only need with the electric wire connection to the line connector on can, convenient and fast, the box body is used for protection circuit substrate and bears the weight of the line connector, because circuit substrate wraps up in the box body, in the power consumption in-process, the heat that circuit substrate produced is difficult to effluvium, leads to circuit substrate high temperature easily, and burns out the circuit.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
To achieve these objects and other advantages in accordance with the present invention, there is provided an electrical junction box for a PLC control cabinet, comprising:
the circuit board connector 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 the 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 intussuseption of heat absorption cavity is filled with the distilled water, the 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 slightly is less than heat absorption cavity width, the material of gasbag has the expansion flexibility.
Preferably, the heat radiating plate has a wave shape, and the plurality of air cells are located near wave crests and wave troughs of the wave shape of the heat radiating plate.
Preferably, the heat dissipation assemblies are two groups, and the two groups of heat dissipation assemblies are respectively positioned at the top and the bottom of the box body.
Preferably, 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 endothermic cavitys 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 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, a position adjusting 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 position adjusting air bag is in contact with the bottom of the heat absorption cavity, when the position adjusting 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 the following steps:
the filter is arranged on the side wall of the box body and communicated with the outside of the box body, and the filter is positioned at one end of an airflow channel formed by the plurality of heat dissipation plates;
the exhaust fan is arranged on the side wall of the box body and is communicated with the filter, and the air outlet end of the exhaust fan faces to one end of an airflow channel formed by the plurality of heat dissipation plates;
the box body is positioned on the side wall of one side opposite to the exhaust fan and is provided with a plurality of air outlet holes.
Preferably, the air outlet hole is in a long strip shape.
Preferably, the heat dissipation plate and the heat absorption cavity are both made of metal.
Preferably, the inner wall of the heat absorption cavity is smooth.
Preferably, the air bag is ellipsoidal, the radial section of the heat absorption cavity is circular, and the diameter of the heat absorption space is 1-1.5 cm.
Preferably, the top and the bottom of the box body are respectively 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 dissipation plate can quickly absorb heat generated in the box body, and the heat is transferred to the outside of the box body through the heat transfer effect from solid to dissipate heat. The heat absorption cavity holds a certain amount of distilled water, and the heat absorption coefficient of water is big, when there is the difference in temperature, can be a large amount of from external absorption heat, consequently, the cooperation of heat absorption cavity and distilled water can be a large amount of quick circuit substrate's in the absorption box body heat to reach and reduce the too high effect of circuit substrate temperature rise. Under the effect that does not need the external force, the box body is inside can be effectual fast absorb and conduct circuit substrate's heat to the box body outside, reaches the effect of protection circuit substrate board.
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 electric 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 view of the distribution of 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 electric 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 further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, 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, including:
the circuit board connector comprises a box body 1, a circuit substrate 2 and a wire connector 3, wherein the circuit substrate 2 is arranged in the box body in a hanging mode, and the 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 1 top of box body, and is located 2 tops of circuit substrate, radiator unit 100 includes the vertical heating panel 4 that a plurality of intervals set up, and the interval is equipped with the endothermic cavity 5 of a plurality of bars on every heating panel 4, 5 intussuseptions in the endothermic cavity are filled with the distilled water, the distilled water surface with 5 top surfaces in the endothermic cavity have a certain clearance, 5 interior intervals in the endothermic cavity hold a plurality of gasbags 6, 6 intussuseptions in the gasbag are filled with gaseously, the size of gasbag 6 slightly is less than 5 widths in the endothermic cavity, the material of gasbag 6 has the inflation scalability.
In the above technical solution, the heat dissipation plate 4 of the heat dissipation assembly 100 can rapidly absorb the heat generated in the box body 1, and the heat is transferred to the outside of the box body 1 through the heat transfer from the solid to the solid for heat dissipation, and the heat dissipation plate 4 is usually made of metal or a material with high heat conductivity coefficient. The last heat absorption cavity 5 of radiator unit 100, a cavity also adopts the metal material to make usually, and the inside holds a certain amount of distilled water, and the heat absorption coefficient of water is big, when having the difference in temperature, can absorb the heat from the external world by a large amount, consequently, the cooperation of heat absorption cavity 5 and distilled water can be a large amount of quick circuit substrate 2's in the absorption box body 1 heat to reach and reduce the too high effect of circuit substrate 2 temperature rise. 6 floats in distilled water of gasbag, when 6 thermal expansions of gasbag, on the one hand oneself inflation need absorb the heat to reach the absorption to the heat, on the other hand 6 inflation of gasbag can arouse rocking of 5 interior distilled water of heat absorption cavity, thereby also promoted heat-conducting speed. Synthesize the combination of above-mentioned technical means, under the effect that does not need the external force, box body 1 is inside can be effectual fast absorb and conduct the heat of circuit substrate 2 to box body 1 outside, reaches the effect of protection circuit substrate board.
In another technical scheme, the heat dissipation plate 4 is in a wave shape, and a plurality of air bags 6 are positioned near wave crests and wave troughs of the wave shape of the heat dissipation plate 4. The provision of the wave shape and the disposition of the air cells 6 at the positions of the peaks and valleys can increase the sloshing degree of the distilled water caused by the expansion of the air cells 6, thereby increasing the heat transfer efficiency.
In another technical scheme, the number of the heat dissipation assemblies 100 is two, and the two heat dissipation assemblies 100 are respectively located at the top and the bottom of the box body 1. The heat dissipation can be simultaneously performed on the upper surface and the lower surface of the circuit, and the heat dissipation speed is further improved.
In another technical scheme, one end of the heat absorption cavity 5 is hinged with the heat dissipation plate 4;
still include a plurality of positioning components, a plurality of positioning components and a plurality of heat absorption cavity 5 one-to-one, every positioning component 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 hoop is arranged on the outer wall of the heat absorption cavity 5, and then the hanging rope 7 is fastened on the hoop
The limiting column cavity 8 is arranged below the free end of the corresponding heat absorption cavity 5, the upper end face of the limiting column cavity 8 is open, a position adjusting air bag 9 is arranged in the limiting column cavity 8, air is filled in the position adjusting air bag 9, when the heat absorption cavity 5 is in a horizontal state, the upper end of the position adjusting air bag 9 is in contact with the bottom of the heat absorption cavity 5, when the position adjusting air bag 9 is heated, the position adjusting air bag 9 expands upwards, and the free end of the heat absorption cavity 5 moves upwards.
In above-mentioned technical scheme, during rivers flow, thermal conduction velocity can show and accelerate, consequently in order to further increase the effect of rocking of rivers, set up the positioning subassembly, when the temperature risees in box body 1, then positioning gasbag 9 is inside gaseous, can expand very fast, positioning gasbag 9 is under spacing effect of spacing post chamber 8, only can upwards expand, consequently, can promote the free end rebound of heat absorption cavity 5, the other end of heat absorption cavity 5 is articulated, the execution is the rotation, then the state of rotatory end is located to the free end has been formed, distilled water in the heat absorption cavity 5 then can be followed the free end and flowed towards the rotatory end, so show the effect of rocking of having promoted distilled water, and then can promote the radiating rate.
In another technical solution, the method further comprises:
a filter 10 disposed 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 airflow path formed by the plurality of heat dissipation plates 4;
an exhaust fan 11, which is arranged on the side wall of the box body 1 and is communicated with the filter 10, wherein the air outlet end of the exhaust fan 11 faces one end of an airflow channel formed by the plurality of heat dissipation plates 4;
the box body 1 is provided with a plurality of air outlet holes 12 on the side wall opposite to the exhaust fan 11.
In above-mentioned technical scheme, can also start 11 backs of air exhauster through setting up air exhauster 11, in air process filter 10 follow outside suction box body 1, then flow out from exhaust vent 12 of 1 opposite sides of box body for the inside air cycle of 1 inside of box body, with the hot-air outgoing in the box body 1, with the outer cold air suction of 1 box body, reach the effect to the heat dissipation cooling of circuit substrate 2.
In another technical scheme, the air outlet 12 is in a strip shape. The elongated air outlet 12 facilitates the air in the box body 1 to be discharged.
In another technical solution, the heat dissipation plate 4 and the heat absorption cavity 5 are made of metal. The metal material has a high thermal conductivity, and therefore, the heat dissipation performance of the heat dissipation plate 4 and the heat absorption cavity 5 can be improved.
In another solution, the inner wall of the heat absorption cavity 5 is smooth. Aiding the movement of the distilled water and the bladder 6.
In another technical scheme, the air bag 6 is in an ellipsoid shape, the radial section of the heat absorption cavity 5 is in a circular shape, and the diameter of the heat absorption space is 1-1.5 cm. Helping the bladder 6 to move within the heat absorption cavity 5 and helping the distilled water and bladder 6 to absorb heat from the interior of the case 1.
In another technical scheme, a plurality of groups of clamping grooves are formed in the top and the bottom of the box body 1, and the heat dissipation plate 4 is clamped on the clamping grooves. The detachable connection of the heat dissipation plate 4 is realized, and the heat dissipation plate 4 is convenient to mount and dismount.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. An electrical junction box for a PLC control cabinet, comprising:
the circuit board connector 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 the 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 intussuseption of heat absorption cavity is filled with the distilled water, the 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 slightly is less than heat absorption cavity width, the material of gasbag has the expansion flexibility.
2. The electrical junction box for a PLC control cabinet according to claim 1, wherein the heat radiating plate has a wave shape, and a plurality of air cells are located near peaks and valleys of the wave shape of the heat radiating plate.
3. The electrical junction box for a PLC control cabinet of claim 1, wherein the heat dissipating assemblies are two sets, the two sets being located at the top and bottom of the box body, respectively.
4. The electrical junction box for a PLC control cabinet according to claim 1, wherein one end of the heat absorbing cavity is hinged to the heat radiating plate;
still include a plurality of positioning components, a plurality of positioning components and a plurality of endothermic cavitys 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 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, a position adjusting 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 position adjusting air bag is in contact with the bottom of the heat absorption cavity, when the position adjusting air bag is heated, the air bag expands upwards, and the free end of the heat absorption cavity moves upwards.
5. The electrical junction box for a PLC control cabinet according to claim 1, further comprising:
the filter is arranged on the side wall of the box body and communicated with the outside of the box body, and the filter is positioned at one end of an airflow channel formed by the plurality of heat dissipation plates;
the exhaust fan is arranged on the side wall of the box body and is communicated with the filter, and the air outlet end of the exhaust fan faces to one end of an airflow channel formed by the plurality of heat dissipation plates;
the box body is positioned on the side wall of one side opposite to the exhaust fan and is provided with a plurality of air outlet holes.
6. The electrical junction box for a PLC control cabinet according to claim 5, wherein the air outlet is elongated.
7. The electrical junction box for a PLC control cabinet of claim 1, wherein the heat radiating plate and the heat absorbing cavity are made of a metal material.
8. The electrical junction box for a PLC control cabinet according to claim 1, wherein an inner wall of the heat absorbing cavity is smooth.
9. The electrical junction box for a PLC control cabinet according to claim 1, wherein the air bag has an ellipsoidal shape, the heat absorbing cavity has a circular radial cross section, and the heat absorbing space has a diameter of 1 to 1.5 cm.
10. The electrical junction box for a PLC control cabinet according to claim 1, wherein a plurality of sets of card slots are provided at both the top and bottom of the box body, and the heat dissipation plate is engaged with the card slots.
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 true CN114447852A (en) | 2022-05-06 |
| CN114447852B 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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| US6627814B1 (en) * | 2002-03-22 | 2003-09-30 | David H. Stark | Hermetically sealed micro-device package with window |
| US20090114413A1 (en) * | 2007-11-07 | 2009-05-07 | Daviau William A | Insulated Housing |
| 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 |
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| 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 |
-
2022
- 2022-03-01 CN CN202210196489.9A patent/CN114447852B/en active Active
Patent Citations (11)
| 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 |
| US20090114413A1 (en) * | 2007-11-07 | 2009-05-07 | Daviau William A | Insulated Housing |
| 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 |
|---|---|
| CN114447852B (en) | 2024-02-09 |
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