CN214707004U - Temperature control low-voltage cable branch box - Google Patents
Temperature control low-voltage cable branch box Download PDFInfo
- Publication number
- CN214707004U CN214707004U CN202120499096.6U CN202120499096U CN214707004U CN 214707004 U CN214707004 U CN 214707004U CN 202120499096 U CN202120499096 U CN 202120499096U CN 214707004 U CN214707004 U CN 214707004U
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- power supply
- box
- protective cover
- voltage cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 21
- 230000003044 adaptive effect Effects 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- 241000251468 Actinopterygii Species 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 239000011368 organic material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000010030 laminating Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Patch Boards (AREA)
Abstract
The utility model relates to a temperature control low-voltage cable branch box, which comprises a box body, wherein the left side and the right side of the box body are respectively provided with a plurality of heat dissipation windows from top to bottom, the upper parts and the two sides of the heat dissipation windows are respectively wrapped with an installation base, and the heat dissipation windows are movably provided with a protective cover; the inside fixed two exhaust fans, two air inlet fans and the alternating current-direct current self-adaptation power that is provided with of box, exhaust fan, air inlet fan with electrical connection has temperature detect switch between the alternating current-direct current self-adaptation power. The protective cover and the mounting base of the utility model adopt the combination of the insertion of the grooves and the convex grooves on two sides, and the mounting is convenient. Temperature detect switch real-time supervision incasement temperature, when the temperature exceeded the restriction, start exhaust fan and air inlet fan, forced air cooling circulation further ensures the radiating effect. The air exhaust system uses an alternating current-direct current adaptive power supply to meet the requirements of experimental tests and convenience of on-site actual power utilization.
Description
Technical Field
The utility model belongs to the technical field of the distribution heat dissipation, concretely relates to control by temperature change low tension cable feeder pillar.
Background
At present, each set of shaped low-voltage switch product cannot solve the physical contradiction between heat dissipation and protection, the conventional method cannot achieve simultaneous qualification of temperature rise test and protection grade detection, and the standard-meeting product cannot be produced. Some products use the exhaust fan to strengthen the radiating effect, under the power frequency running state, can satisfy the heat dissipation requirement. However, in the detection of each detection center, the fan of the direct current power supply used in the temperature rise test cannot be started when the type test is carried out, and the heat dissipation effect of the fan cannot be verified.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the shortcomings of the prior art are overcome, and the temperature control low-voltage cable branch box is provided.
The utility model provides a technical scheme that the problem that prior art exists adopted is:
the utility model provides a temperature control low-voltage cable branch box, which comprises a box body, wherein a plurality of heat dissipation windows are respectively arranged on the left side and the right side of the box body from top to bottom, each heat dissipation window comprises a plurality of fish scale-shaped heat dissipation hole grooves formed in the side wall of the box body, the upper part and the two sides of each heat dissipation window are wrapped with an installation base, each installation base comprises a lateral part installation seat arranged on the two sides of each heat dissipation window and a conical top plate connected between the tops of the two lateral part installation seats, and each lateral part installation seat is provided with an installation groove;
the last activity of heat dissipation window is provided with the protection casing, the protection casing for the bottom link up cover shape structure and its top be with the toper structure of toper roof adaptation, the protection casing both sides be provided with the convex key of mounting groove adaptation, the convex key insert locate in the mounting groove just the toper top of protection casing with toper roof laminating butt.
The inside fixed two exhaust fans, two air inlet fans and the alternating current-direct current self-adaptation power of being provided with of box, the exhaust fan sets up in the heat dissipation window left and right sides near the box top, the air inlet fan sets up in the heat dissipation window left and right sides near the box middle part, exhaust fan, air inlet fan with electrical connection has temperature detect switch between the alternating current-direct current self-adaptation power.
The power input end of the AC/DC self-adaptive power supply is respectively connected with the input ends of a voltage reduction transformer and an electromagnetic switch, the output end of the voltage reduction transformer is connected with the input end of a rectifier bridge, the output end of the rectifier bridge is connected with the power output end of the AC/DC self-adaptive power supply, a blocking capacitor is connected between the voltage reduction transformer and the power input end in series, and a filter capacitor is connected between the output end of the rectifier bridge and the power output end in parallel; the power supply input end and the power supply output end can be connected in an on-off mode through the electromagnetic switch, and an alternating current limiting reactance is connected between the electromagnetic switch and the power supply input end in series.
Preferably, the radiator window quantity of the box left and right sides is 3, the exhaust fan sets up in being close to the upper portion radiator window left and right sides, the air inlet fan sets up in the middle part radiator window left and right sides.
Preferably, the top of the box body is provided with a prismatic top cover with a narrow upper part and a wide lower part.
Preferably, the bottom of the mounting base is fixedly connected with the side wall of the box body.
Preferably, the mounting groove is a stepped groove with a narrow outer part and a wide inner part; the joint groove has been seted up in the bottom outside of two lateral walls of protection casing, the protruding key set up perpendicularly in the joint groove just the protruding key be with the ladder piece of mounting groove adaptation.
Preferably, cabinet doors are movably arranged on the front side and the rear side of the box body, and the cabinet doors are of an inner buckling door structure.
Preferably, the cabinet door is provided with a strip lock.
Preferably, the electromagnetic switch comprises two pairs of fixed contacts and a pair of movable contacts, the two pairs of fixed contacts are respectively connected with the power supply input end and the power supply output end, the electromagnetic switch drives the movable contact to be in on-off connection with the two pairs of fixed contacts through an armature,
or,
the electromagnetic switch comprises a pair of fixed contacts and a pair of movable contacts, the fixed contacts are connected with the power supply input end, the movable contacts are connected with the power supply output end, and the movable contacts are driven by the electromagnetic switch through armatures to be in on-off connection with the fixed contacts.
Preferably, the shield covers the plurality of heat dissipation hole grooves in the respective heat dissipation areas completely.
Preferably, the protective cover is attached to the conical top plate of the mounting base, and a sealant is arranged at the corresponding attaching portion.
Compared with the prior art, the utility model discloses beneficial effect who has:
(1) the utility model discloses a detachable protection casing is as the annex along with equipment main part delivery in the in-service use, ensures that the shell can not damage in the transportation.
(2) The protective cover and the mounting base are combined by inserting grooves and convex grooves on two sides, so that the mounting is convenient.
(3) The protective cover and the mounting base are provided with conical tops, and the tops of the protective cover and the mounting base are sealed by sealant, so that the reliability of waterproof performance is further ensured.
(4) Temperature detect switch real-time supervision incasement temperature, when the temperature exceeded the restriction, start exhaust fan and air inlet fan, forced air cooling circulation further ensures the radiating effect.
(5) The air exhaust system uses an alternating current-direct current self-adaptive power supply, so that a temperature rise verification test is facilitated.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Figure 1 is a side view of a housing according to an embodiment of the present invention,
figure 2 is a front view of a housing according to an embodiment of the present invention,
figure 3 is a top view of the housing of an embodiment of the present invention,
FIG. 4 is a schematic view of a heat dissipation window and a mounting base according to an embodiment of the present invention,
figure 5 is a cross-sectional side view of a base of an embodiment of the invention,
figure 6 is a schematic view of the protective cover according to an embodiment of the present invention,
figure 7 is an enlarged view of a portion of a protective cover according to an embodiment of the present invention,
figure 8 is an electrical schematic diagram of an ac/dc adaptive power supply according to an embodiment of the present invention,
in the figure:
1. the box, 2, installation base, 3, protection casing, 4, prism top cap, 5, cabinet door, 6, rectangular lock, 11, radiating hole groove, 21, lateral part base, 22, toper roof, 31, convex key, 32, joint groove, 211, mounting groove.
Detailed Description
In order to make the technical solution and the beneficial effects of the present invention clearer, the following is a further detailed explanation of the embodiments of the present invention.
As shown in fig. 1 to 8, the utility model provides a control by temperature change low tension cable feeder pillar, including box 1, its characterized in that: the left and right sides of box 1 is provided with a plurality of radiator window from top to bottom respectively, the radiator window is including seting up in a plurality of fish scale shape radiating hole grooves 11 of 1 lateral wall of box, radiator window upper portion and both sides package are equipped with installation base 2, installation base 2 is including locating the lateral part mount pad 21 of radiator window both sides and connect the toper roof 22 between two lateral part mount pad 21 tops, mounting groove 211 has been seted up on the lateral part mount pad 21.
The fish scale-shaped heat dissipation hole groove 11 is a heat dissipation structure which is covered and provided with a top cover above a common hole groove to change the air inlet direction of the hole groove, reduce the probability of water vapor entering and is adopted by most electric boxes.
The activity is provided with protection casing 3 on the heat dissipation window, protection casing 3 for the bottom through cover shape structure and its top be with the toper structure of toper roof 22 adaptation, 3 both sides of protection casing be provided with the convex key 31 of mounting groove 211 adaptation, convex key 31 insert locate in the mounting groove 211 just the toper top of protection casing with toper roof 22 laminating butt.
The inside fixed two exhaust fans, two air inlet fans and the alternating current-direct current self-adaptation power that is provided with of box 1, the exhaust fan sets up in the heat dissipation window left and right sides that is close to box 1 top, the air inlet fan sets up in the heat dissipation window left and right sides that is close to box 1 middle part, exhaust fan, air inlet fan with electrical connection has temperature detect switch between the alternating current-direct current self-adaptation power.
The alternating current-direct current self-adaptive power supply is used for supplying power to the exhaust fan and the air inlet fan, and the temperature control switch is used for controlling the on-off of the power supply loop. The utility model discloses well 50 ℃ of adoption control by temperature change probe is as temperature switch, starts air inlet fan and air discharge fan when the temperature is higher than 50 degrees centigrade, begins to air exhaust. The temperature control switch is arranged at the top of the interior of the box body so as to sense the temperature of the interior.
The air inlet fan and the exhaust fan are fans with the same model and are divided into the air inlet fan and the exhaust fan through different rotation directions. The air inlet fan is arranged on the left side and the right side of the heat dissipation window close to the middle of the box body 1, cold air is sucked from the outside, and dust on the ground is prevented from being sucked in the middle of the box body due to position selection. The exhaust fans are arranged at the left side and the right side of the heat dissipation window close to the top of the box body 1, so that internal hot air is exhausted, and heated air is easier to exhaust due to the position selection at the upper part. The middle air inlet fan and the top exhaust fan form circulation to promote heat exchange.
The parameters of the fan are as follows: the micro fan has the voltage of 5VDC (enduring 3.5V-5.5V), the rotating speed of 14000 revolutions and the air discharge amount of 2.6m 3/h.
As shown in fig. 8, a power input end of the ac/dc adaptive power supply is connected to an input end of a step-down transformer and an input end of an electromagnetic switch, an output end of the step-down transformer is connected to an input end of a rectifier bridge, an output end of the rectifier bridge is connected to a power output end of the ac/dc adaptive power supply, a blocking capacitor is connected in series between the step-down transformer and the power input end, and a filter capacitor is connected in parallel between the output end of the rectifier bridge and the power output end; the power supply input end and the power supply output end can be connected in an on-off mode through the electromagnetic switch, and an alternating current limiting reactance is connected between the electromagnetic switch and the power supply input end in series.
The electromagnetic switch comprises two pairs of fixed contacts and a pair of movable contacts, the two pairs of fixed contacts are respectively connected with the power supply input end and the power supply output end, the movable contacts are driven by the electromagnetic switch through an armature to be in on-off connection with the two pairs of fixed contacts,
or,
the electromagnetic switch comprises a pair of fixed contacts and a pair of movable contacts, the fixed contacts are connected with the power supply input end, the movable contacts are connected with the power supply output end, and the movable contacts are driven by the electromagnetic switch through armatures to be in on-off connection with the fixed contacts.
In fig. 8, the return spring and the contact piece form the armature, and are connected with the two pairs of stationary contacts in a break-make manner under the action of the electromagnet.
Under the operation working condition of the equipment, the voltage of the power supply of the fan is alternating current 220V, and when the equipment detects a temperature rise test, the power supply is direct current 5V. The fan can not work normally under two power states at the same time, and an alternating current and direct current self-adaptive power supply is specially designed, so that no matter the input end of the power supply side (left side) is a 220V alternating current power supply or a 5V direct current power supply, the load side (right side) always outputs a 5V direct current power supply.
The principle is that when the input power supply is 220V power frequency alternating current, the alternating current limiting reactance plays a role in limiting current, the current value in the electromagnet is less than 12mA, the electromagnet is not attracted, and the contact piece is opened. The current is rectified into 5V direct current through the voltage reduction transformer T and the rectifier bridge.
When the input power supply is 5V direct current, the alternating current limiting reactance is conducted, the electromagnet works, the contact piece is contacted, the upper rectifying circuit is short-circuited, and the direct current directly flows through the contact piece to be output. Meanwhile, the upper blocking capacitor blocks the direct current from entering the primary side of the voltage-reducing transformer T, and the voltage-reducing transformer is prevented from being burnt out due to heating under the condition of a direct-current power supply.
The blocking capacitor C0 is smaller than 0.01uF, the filter capacitors C1 and C2 are respectively 0.1uF and 470uF, the impedance of the alternating current limiting reactance is larger than 18K omega, and the limiting alternating current is smaller than 12 mA.
The heat dissipation window quantity of the 1 left and right sides of box is 3, the exhaust fan sets up in being close to the upper portion heat dissipation window left and right sides, the air inlet fan sets up in the middle part heat dissipation window left and right sides, 1 top of box is equipped with under the narrow width prism top cap 4. The prismatic top cover is used for conveniently removing rainwater, and reduces the probability that the periphery of the cabinet body is affected with damp.
The bottom of the mounting base 2 is fixedly connected with the side wall of the box body 1, and the mounting groove 211 is a stepped groove with a narrow outer part and a wide inner part; the joint groove has been seted up in the bottom outside of two lateral walls of protection casing 3, protruding key 31 set up perpendicularly in the joint groove just protruding key 31 for with the ladder piece of mounting groove 211 adaptation. The outer narrow and inner wide refers to the direction away from the side base is narrow, and the direction close to the side base is wide, so that the convex key 31 of the protective cover 3 can be conveniently inserted. The narrower portion and the wider portion of the mounting recess 211 have the same depth to facilitate production.
In actual production, as shown in fig. 5, the cross section of the side mounting seat is 12.5mm in length and 8mm in width, the narrow part of the mounting groove is 2.5mm in groove width (corresponding to the length direction of the cross section), the groove depth (corresponding to the width direction of the cross section) is 2mm, the wide part of the mounting groove is 7.5mm in groove width, and the groove depth is 2 mm.
The cabinet doors 5 are movably arranged on the front side and the rear side of the box body 1, so that equipment can be conveniently installed in the box body 1. The cabinet door 5 is of an inner-buckled door structure, so that the space for opening the door is saved, and the appearance of the cabinet body 1 is kept. The cabinet door 5 is provided with a long lock 6 so as to protect equipment in the cabinet from being touched by mistake or stolen.
The material of protection casing 3 is transparent organic material to the user observes the 1 heat dissipation condition of box.
The protection casing 3 covers a plurality of radiating hole groove 11 in the corresponding radiating area completely, the protection casing 3 with the toper roof 22 of installation base 2 is laminated mutually and corresponding laminating portion is provided with sealed glue, further strengthens the leakproofness.
During transportation, the box body 1 and the protective cover 3 are separately placed to prevent collision damage;
during installation, the convex key 31 of the protective cover 3 is inserted into the groove of the installation base 2 on the box body 1, and sealant is coated on the joint part of the protective cover 3 and the conical top plate 22 of the installation base 2, so that the protective cover 3 and the box body 1 form a heat dissipation space with three sealed surfaces and a through bottom;
when the temperature control box is used, the temperature control switch monitors the temperature in the box body 1 in real time, and when the temperature reaches a preset value, the temperature control switch is closed to drive the exhaust fan and the air inlet fan to rotate electrically to form an air cooling cycle to accelerate heat dissipation
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. Control by temperature change low tension cable feeder pillar, including box (1), its characterized in that: the left side and the right side of the box body (1) are respectively provided with a plurality of heat dissipation windows from top to bottom, each heat dissipation window comprises a plurality of fish scale-shaped heat dissipation hole grooves (11) formed in the side wall of the box body (1), the upper part and the two sides of each heat dissipation window are wrapped with an installation base (2), each installation base (2) comprises lateral installation bases (21) arranged on the two sides of each heat dissipation window and a conical top plate (22) connected between the tops of the two lateral installation bases (21), and each lateral installation base (21) is provided with an installation groove (211);
the heat dissipation window is movably provided with a protective cover (3), the protective cover (3) is of a cover-shaped structure with a through bottom, the top of the protective cover is of a conical structure matched with the conical top plate (22), convex keys (31) matched with the mounting grooves (211) are arranged on two sides of the protective cover (3), the convex keys (31) are inserted into the mounting grooves (211), the conical top of the protective cover is abutted to the conical top plate (22), and the protective cover (3) is made of transparent organic materials;
two exhaust fans, two air inlet fans and an alternating current-direct current adaptive power supply are fixedly arranged inside the box body (1), the exhaust fans are arranged on the left side and the right side of a heat dissipation window close to the top of the box body (1), the air inlet fans are arranged on the left side and the right side of the heat dissipation window close to the middle of the box body (1), and temperature control switches are electrically connected among the exhaust fans, the air inlet fans and the alternating current-direct current adaptive power supply;
the power input end of the AC/DC self-adaptive power supply is respectively connected with the input ends of a voltage reduction transformer and an electromagnetic switch, the output end of the voltage reduction transformer is connected with the input end of a rectifier bridge, the output end of the rectifier bridge is connected with the power output end of the AC/DC self-adaptive power supply, a blocking capacitor is connected between the voltage reduction transformer and the power input end in series, and a filter capacitor is connected between the output end of the rectifier bridge and the power output end in parallel; the power supply input end and the power supply output end can be connected in an on-off mode through the electromagnetic switch, and an alternating current limiting reactance is connected between the electromagnetic switch and the power supply input end in series.
2. The temperature controlled low voltage cable breakout box of claim 1, wherein:
the box (1) the heat dissipation window quantity of the left and right sides respectively is 3, the exhaust fan sets up in being close to the upper portion heat dissipation window left and right sides, the air inlet fan sets up in the middle part heat dissipation window left and right sides.
3. The temperature controlled low voltage cable breakout box of claim 1, wherein:
the top of the box body (1) is provided with a prismatic top cover (4) with a narrow upper part and a wide lower part.
4. The temperature controlled low voltage cable breakout box of claim 1, wherein:
the bottom of the mounting base (2) is fixedly connected with the side wall of the box body (1).
5. The temperature controlled low voltage cable breakout box of claim 4, wherein:
the mounting groove (211) is a stepped groove with a narrow outer part and a wide inner part; the joint groove has been seted up in the bottom outside of two lateral walls of protection casing (3), protruding key (31) set up perpendicularly in the joint groove just protruding key (31) be with the ladder piece of mounting groove (211) adaptation.
6. The temperature controlled low voltage cable breakout box of claim 1, wherein:
the cabinet door is characterized in that cabinet doors (5) are movably arranged on the front side and the rear side of the cabinet body (1), and the cabinet doors (5) are of an inner buckling door structure.
7. The temperature controlled low voltage cable breakout box of claim 6, wherein:
the cabinet door (5) is provided with a strip lock (6).
8. The temperature controlled low voltage cable breakout box of claim 1, wherein:
the electromagnetic switch comprises two pairs of fixed contacts and a pair of movable contacts, the two pairs of fixed contacts are respectively connected with the power supply input end and the power supply output end, the movable contacts are driven by the electromagnetic switch through an armature to be in on-off connection with the two pairs of fixed contacts,
or,
the electromagnetic switch comprises a pair of fixed contacts and a pair of movable contacts, the fixed contacts are connected with the power supply input end, the movable contacts are connected with the power supply output end, and the movable contacts are driven by the electromagnetic switch through armatures to be in on-off connection with the fixed contacts.
9. The temperature controlled low voltage cable breakout box of claim 5, wherein:
the protective cover (3) completely covers the plurality of heat dissipation hole grooves (11) in the corresponding heat dissipation area.
10. The temperature controlled low voltage cable breakout box of claim 5, wherein:
the protective cover (3) is attached to the conical top plate (22) of the installation base (2) and a sealant is arranged at the corresponding attaching portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120499096.6U CN214707004U (en) | 2021-03-09 | 2021-03-09 | Temperature control low-voltage cable branch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120499096.6U CN214707004U (en) | 2021-03-09 | 2021-03-09 | Temperature control low-voltage cable branch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214707004U true CN214707004U (en) | 2021-11-12 |
Family
ID=78570471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120499096.6U Active CN214707004U (en) | 2021-03-09 | 2021-03-09 | Temperature control low-voltage cable branch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214707004U (en) |
-
2021
- 2021-03-09 CN CN202120499096.6U patent/CN214707004U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214707004U (en) | Temperature control low-voltage cable branch box | |
| CN210297012U (en) | Automatic control by temperature change air-cooled low-voltage distribution cabinet | |
| CN209526982U (en) | A kind of module type intelligent power grid control cabinet | |
| CN206064968U (en) | A kind of high-pressure cleaning device | |
| CN210226065U (en) | High electric power voltage cabinet of security | |
| CN205622116U (en) | Low -voltage distribution intelligent control cabinet | |
| CN207603467U (en) | A kind of box photovoltaic DC-to-AC converter | |
| CN107732731B (en) | Safety switch cabinet equipment | |
| CN112803346A (en) | Alternating current-direct current self-adaptive high-efficiency temperature control low-voltage cable branch box | |
| CN208271974U (en) | A kind of battery case | |
| CN216721860U (en) | Heat dissipation mechanism that photovoltaic inverter used | |
| CN215185352U (en) | Intelligent direct-current power supply cabinet with temperature monitoring function | |
| CN211088798U (en) | A heat dissipation power supply cabinet for online temperature measurement function | |
| CN209419073U (en) | A kind of outdoor intelligent distribution box | |
| CN212967908U (en) | Safe type lithium cell with overcharge is prevented in high temperature heat dissipation | |
| CN209072315U (en) | A kind of spinning frame frequency converter with long service life | |
| CN207476088U (en) | Self-recover overvoltage-undervoltage delay-time protector | |
| CN207338970U (en) | Dust-proof power control cabinet | |
| CN208835509U (en) | A kind of electric power novel electric power apparatus case | |
| CN206180742U (en) | Waterproof fan motor | |
| CN205595952U (en) | Install inverter motor of radiator | |
| CN218678056U (en) | Circuit breaker cabinet | |
| CN212664017U (en) | Drying device after spraying of bumper bracket | |
| CN210723740U (en) | Environment-friendly energy-saving low-voltage switch cabinet | |
| CN217387298U (en) | Energy-saving and environment-friendly module box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |