CN211239027U - Heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box - Google Patents
Heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box Download PDFInfo
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- CN211239027U CN211239027U CN201922492344.XU CN201922492344U CN211239027U CN 211239027 U CN211239027 U CN 211239027U CN 201922492344 U CN201922492344 U CN 201922492344U CN 211239027 U CN211239027 U CN 211239027U
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- heat dissipation
- switch box
- circuit breaker
- base member
- case circuit
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 62
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 15
- 238000001816 cooling Methods 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000446313 Lamella Species 0.000 description 2
- 238000005247 gettering Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model relates to a heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box belongs to electrical switch box technical field, it includes the cabinet body, the cabinet body includes the base member, the front panel, rear panel and curb plate, be provided with the inner frame body of fixed components and parts in the base member, front panel and rear panel all articulate and establish respectively in the base member both sides with the base member, the curb plate is located the perpendicular both sides that set up the front panel of base member, be connected with radiator unit between curb plate and the base member, still be provided with control radiator unit's adjusting member in the base member, radiator unit includes a plurality of heating panels and receipts sheet frame, a plurality of heating panels are articulated each other, it is fixed with the lateral wall of base member to receive the sheet frame, heating panel one side is connected with the. The utility model discloses have good radiating effect, reduce the effect that the internal heat of cabinet caused the influence to components and parts.
Description
Technical Field
The utility model belongs to the technical field of the electrical switch box technique and specifically relates to a heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box is related to.
Background
In a low-voltage three-phase four-wire system power supply system for urban residents and rural power grids: as most power consumers are single-phase loads or single-phase and three-phase loads which are used together, and the loads are different in size and the power utilization time is different, the three-phase current (or voltage) amplitude values in the power system are inconsistent, and the amplitude value difference exceeds a specified range, namely the three-phase loads are unbalanced.
The existing bulletin numbers are: CN207381986U, a chinese patent discloses a distribution network three-phase load manual-automatic integrated phase modulation switch box, which comprises a circuit breaker, a current transformer, an intermediate relay, a fuse, an intermediate relay, an ac contactor, a manual adjusting device and a remote control adjusting device, which are installed in a cabinet body, wherein a window is opened on the cabinet surface, and a digital display is installed in the window; the circuit breaker is characterized in that the incoming line side of the circuit breaker is connected with a power supply, the outgoing line side of the circuit breaker is connected with three corresponding intermediate relays through three current transformers, the outgoing line ends and the zero phases of three alternating current contactors are connected with a three-phase load, and coil contacts of the three intermediate relays are also correspondingly connected with normally open contacts of the three alternating current relays; the digital display is respectively connected with the three current transformers, the fuse and the zero phase, and the three-phase load is respectively connected with the manual adjusting device and the remote control adjusting device through the three alternating current relays.
The above prior art solutions have the following drawbacks: inside components and parts can produce the heat when carrying out the during operation, and the whole cabinet body of above-mentioned switch box does not have the radiating effect, can lead to the heat of inside production to cause the influence to components and parts.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box, it has good radiating effect, reduces the effect that the internal heat of cabinet caused the influence to components and parts.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box, includes the cabinet body, the cabinet body includes base member, front panel, rear panel and curb plate, be provided with fixed components and parts's interior framework in the base member, front panel and rear panel all articulate and divide in the base member both sides with the base member, the curb plate is located the perpendicular both sides that set up the front panel of base member, be connected with radiator unit between curb plate and the base member, still be provided with control radiator unit's adjusting member in the base member.
Through adopting above-mentioned technical scheme, front panel and rear panel are articulated with the base member to conveniently open front panel and rear panel, be connected through radiator unit between curb plate and the base member, make under the effect of regulating means, conveniently control radiator unit and remove, thereby conveniently open and close the curb plate, and when opening the curb plate, reach the reinforcing and to holistic radiating effect.
The utility model discloses further set up to: the heat dissipation assembly comprises a plurality of heat dissipation plates and a plate collection frame used for containing the heat dissipation plates, the heat dissipation plates are located in the same plate collection frame and hinged to each other, the plate collection frame is fixed to the side wall of the base body, one side of each heat dissipation plate is connected with the corresponding side plate, the other side of each heat dissipation plate is connected with the bottom wall of the plate collection frame, and the heat dissipation plates are provided with a plurality of heat dissipation holes.
Through adopting above-mentioned technical scheme, under regulating means's effect, conveniently open the curb plate, when opening the curb plate, take out in the heating panel frame with the curb plate is connected, when the heating panel was pulled out, the louvre on the heating panel can strengthen holistic radiating effect.
The utility model discloses further set up to: one side of the base body facing the side plate is provided with a fixing groove for clamping the side plate, and the side plate is provided with a sealing block corresponding to the fixing groove.
Through adopting above-mentioned technical scheme, when the curb plate was accomodate, with the sealed piece and the fixed slot block that the curb plate is connected to the curb plate is difficult for appearing the possibility that breaks away from with the base member.
The utility model discloses further set up to: the adjusting component comprises an adjusting motor, a threaded sleeve and a screw rod, the adjusting motor is fixed with the inner frame body, the adjusting motor is coaxially connected with the threaded sleeve, one end of the screw rod is connected with one side of the side plate, which faces the inner frame body, and the other end of the screw rod is in threaded connection with the threaded sleeve.
By adopting the technical scheme, the side plate can be conveniently pushed to be opened and driven to be stored; when adjusting the motor and driving the screw sleeve and rotate, because screw rod one end is connected with the curb plate to drive the curb plate and open or close, realize when the heat dissipation needs accelerate, open both sides curb plate, increase the radiating efficiency under the effect of heating panel.
The utility model discloses further set up to: the adjusting groove has been seted up at the base member top, the adjusting groove is provided with the subassembly with higher speed, the subassembly includes radiator fan, lead screw, slide bar and moving motor with higher speed, radiator fan slides with the adjusting groove and is connected, one side that the base member deviates from interior framework is provided with the support, the support is divided and is established in the adjusting groove both sides, slide bar and lead screw are worn to establish respectively in the support of adjusting groove both sides, the both sides at radiator fan are worn to establish by slide bar and lead screw, lead screw and radiator fan threaded connection, moving motor and lead screw coaxial coupling.
Through adopting above-mentioned technical scheme, when the mobile motor drives the lead screw and rotates, drive radiator fan and remove along the adjustment tank, radiator fan blows to the components and parts on the internal framework when removing, strengthens the mobility of air to further improvement radiating efficiency.
The utility model discloses further set up to: the top of the base body is also provided with a protective cover which covers the cooling fan, and one side of the protective cover is provided with an air suction opening.
Through adopting above-mentioned technical scheme, cover the inlet scoop of seting up on the guard shield at base member top for radiator fan can blow towards the base member is inside, and the guard shield cover is established outside radiator fan, makes radiator fan be difficult for the gettering damage.
The utility model discloses further set up to: and a filter screen is arranged at the air suction opening.
Through adopting above-mentioned technical scheme, the filter screen that the air inlet department set up plays and stops in debris are inhaled the protection casing to further make radiator fan be difficult for the gettering damage.
The utility model discloses further set up to: the base body further comprises a bottom frame, an intermediate plate for supporting the inner frame body is arranged between the bottom frame and the inner frame body, heat dissipation grooves are formed in the intermediate plate, and heat dissipation panels are arranged on the outer walls of four sides of the bottom frame.
Through adopting above-mentioned technical scheme, the radiating groove on the intermediate lamella can further reinforcing radiating effect, and the inside heat that produces of base member can form the heat dissipation through radiating groove from the cooling panel department on the underframe to further whole radiating efficiency of improvement.
The utility model discloses further set up to: one side of the bottom frame deviating from the radiating panel is provided with a waterproof plate.
Through adopting above-mentioned technical scheme, under the effect of waterproof board, reduce external water and pass through the cooling panel splash to the underframe in, cause moisture content evaporation to lead to the fact the influence to the internal components and parts of cabinet in the underframe.
To sum up, the utility model discloses a beneficial technological effect does:
1. the side plates can be conveniently opened and closed, so that when the integral heat dissipation needs to be enhanced, the side plates are opened for heat dissipation, the side plates are controlled to be opened and closed through the adjusting members, and the heat dissipation efficiency is enhanced under the action of the heat dissipation assembly;
2. the air suction opening is arranged, so that the heat radiation fan can suck air, and the possibility of damage caused by sundries sucked by the heat radiation fan under the action of the filter screen is reduced;
3. through the heat dissipation panel who sets up in underframe one side for when the curb plate was closed, heat dissipation panel improved radiating efficiency, and under the effect of waterproof board, reduced the possibility that external water entered into in the underframe.
Drawings
Fig. 1 is a schematic view of the overall structure of the present embodiment.
Fig. 2 is a schematic cross-sectional view of the interior of a body cabinet.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic structural diagram embodying an acceleration assembly.
In the figure, 1, a cabinet body; 11. a substrate; 111. fixing grooves; 112. an adjustment groove; 12. a front panel; 13. a rear panel; 14. a side plate; 141. a sealing block; 142. a detection tank; 15. a bottom frame; 151. a heat dissipation panel; 16. a middle plate; 161. a heat sink; 2. an inner frame body; 3. a heat dissipating component; 31. a heat dissipation plate; 32. collecting a plate frame; 33. heat dissipation holes; 4. an adjustment member; 41. adjusting the motor; 42. a screw sleeve; 43. a screw; 5. an acceleration component; 51. a heat radiation fan; 52. a lead screw; 53. a slide bar; 54. a moving motor; 55. a support; 6. a protective cover; 61. an air suction opening; 62. filtering with a screen; 7. a waterproof sheet; 8. a controller; 81. a humidity sensor; 82. a temperature sensor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box, including the cabinet body 1, the cabinet body 1 includes base member 11, front panel 12, rear panel 13, curb plate 14 and underframe 15, still be provided with the inner frame body 2 that is used for fixed components and parts in the base member 11, be connected with intermediate lamella 16 between inner frame body 2 and the underframe 15, front panel 12 and rear panel 13 divide to establish in the both sides of base member 11 and articulated with base member 11, curb plate 14 is all connected with the both sides that set up front panel 12 vertically to base member 11, the leading flank of underframe 15 is provided with heat dissipation panel 151.
Referring to fig. 2 and 3, be connected with radiator unit 3 between curb plate 14 and the base member 11, radiator unit 3 includes a plurality of heating panels 31 and receipts plate frame 32, a plurality of louvres 33 have been seted up on the heating panel 31, it is fixed with base member 11 lateral wall to receive plate frame 32, with the base member 11 lateral wall edge four receipts plate frames 32 of fixing all around that correspond with same curb plate 14, be connected through heating panel 31 between curb plate 14 and the receipts plate frame 32, two articulated heating panels 31 each other are put in the receipts plate frame 32, heating panel 31 one side after the articulated is connected with curb plate 14, the opposite side is connected with receipts plate frame 32 diapire, be connected with regulating member 4 that is used for controlling opening of curb plate 14 and closes between curb plate 14 and the interior framework.
Referring to fig. 2 and 3, the adjusting member 4 includes an adjusting motor 41, a threaded sleeve 42 and a screw 43, the adjusting motor 41 is fixed to the inner frame 2, the adjusting motor 41 is coaxially connected to the threaded sleeve 42, one end of the screw 43 is connected to the side plate 14, and the other end of the screw 43 is inserted into the threaded sleeve 42 and is in threaded connection with the threaded sleeve 42, so that when the adjusting motor 41 drives the threaded sleeve 42 to rotate, the opening and closing of the side plate 14 are controlled, when the side plate 14 is opened, the heat dissipation plate 31 accommodated in the plate accommodating frame 32 is driven to be pulled out, and after the heat dissipation plate 31 is pulled out, an obtuse angle is formed between the heat dissipation plates 31 hinged to each other, so that the heat dissipation efficiency is improved under the effect of the heat dissipation plate 31, and because an obtuse angle is formed between the heat dissipation plates 31 hinged to each other, the adjusting motor 41 can drive the.
Referring to fig. 2 and 3, a fixing groove 111 is formed in one side of the base 11 facing the side plate 14, a sealing block 141 is disposed at a position of the side plate 14 corresponding to the fixing groove 111, so that when the side plate 14 and the base 11 are closed, the sealing block 141 is engaged with the fixing groove 111 to seal between the side plate 14 and the base 11, a detection groove 142 is formed in one side of the side plate 14 facing away from the base 11, a humidity sensor 81 is disposed in the detection groove 142, a controller 8 is disposed in the base 11, the humidity sensor 81 is electrically connected to the adjusting motor 41, the controller 8 is electrically connected to the adjusting motor 41, so that when the outside is rainy, the humidity sensor 81 senses outside moisture and transmits a signal to the controller 8, and the controller 8 controls the adjusting motor 41 not to operate, so that the side plate 14 is not opened to dissipate heat, and the possibility of moisture entering the cabinet 1.
Referring to fig. 2 and 4, an adjusting groove 112 is formed at the top of the base 11, an accelerating assembly 5 for accelerating heat dissipation is disposed in the adjusting groove 112, the accelerating assembly 5 includes a heat dissipating fan 51, a lead screw 52, a slide rod 53 and a moving motor 54, the heat dissipating fan 51 is disposed in the adjusting groove 112 and can move along the adjusting groove 112, two sides of the adjusting groove 112 are both provided with a bracket 55, the lead screw 52 and the slide rod 53 are respectively inserted into the brackets 55 at two sides of the adjusting groove 112, the lead screw 52 and the slide rod 53 are respectively inserted into two sides of the heat dissipating fan 51, the lead screw 52 is in threaded connection with the heat dissipating fan 51, the moving motor 54 is fixed with one end of the adjusting groove 112, the moving motor 54 is coaxially connected with one end of the lead screw 52, so that the heat dissipating fan 51 is controlled to move along the adjusting groove 112 under the action of the moving motor 54 driving the lead screw 52 to rotate, a temperature sensor 82, the controller 8 is also electrically connected with the moving motor 54 and the heat dissipation fan 51, so that after the temperature sensor 82 senses that the internal temperature reaches the temperature required to dissipate heat, the motor is controlled to control the adjusting motor 41, the moving motor 54 and the heat dissipation fan 51 to work, the heat dissipation efficiency is improved under the action of the heat dissipation fan 51, and the side plate 14 is opened to dissipate heat when it is not raining.
Referring to fig. 4, the protective cover 6 is covered on the top of the base 11, the protective cover 6 protects the cooling fan 51 under the action of the protective cover 6, an air suction opening 61 is formed in one side of the protective cover 6 facing the rear panel 13 (see fig. 2), the cooling fan 51 can normally suck air under the action of the air suction opening 61, a filter screen 62 is arranged at the air suction opening 61, the possibility that sundries are sucked into the cooling fan 51 is reduced under the action of the filter screen 62, and the cooling fan 51 is not easily damaged.
Referring to fig. 2, the heat dissipation grooves 161 penetrating through the middle plate 16 are formed around the middle plate 16, so that the heat in the cabinet 1 is blown into the bottom frame 15 through the heat dissipation grooves 161 under the action of the heat dissipation fan 51 (see fig. 4), and is dissipated under the action of the heat dissipation panel 151 of the bottom frame 15, thereby further improving the overall heat dissipation efficiency; the inner side surface of the heat dissipation panel 151 is provided with the inclined waterproof plate 7, and the inclined waterproof plate 7 can effectively prevent external moisture from splashing into the bottom frame 15.
The implementation principle of the embodiment is as follows: the opening and closing of the side plates 14 are controlled under the action of the adjusting component 4, the overall heat dissipation efficiency is improved when the side plates 14 are opened under the action of the heat dissipation assembly 3, and the heat dissipation plates 31 are convenient to store when the side plates 14 are stored; the mobility of the internal air flow is accelerated under the action of the acceleration assembly 5 arranged on the top of the base body 11, so that the overall heat dissipation efficiency is enhanced, the overall heat dissipation efficiency is further enhanced under the action of the heat dissipation panels 151 on the four sides of the bottom frame 15, and external water is not easy to splash into the bottom frame 15 under the action of the waterproof board 7.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box, includes the cabinet body (1), its characterized in that: the cabinet body (1) comprises a base body (11), a front panel (12), a rear panel (13) and side plates (14), an inner frame body (2) for fixing components is arranged in the base body (11), the front panel (12) and the rear panel (13) are hinged to the base body (11) and are respectively arranged on two sides of the base body (11), the side plates (14) are located on two sides of the base body (11) where the front panel (12) is vertically arranged, heat dissipation assemblies (3) are connected between the side plates (14) and the base body (11), and adjusting members (4) for controlling the heat dissipation assemblies (3) are further arranged in the base body (11).
2. The heat dissipating type three-phase molded case circuit breaker load phase modulation switch box according to claim 1, wherein: radiating component (3) include a plurality of heating panels (31) and be used for accomodating receipts sheet frame (32) of heating panel (31), are located same heating panel (31) in receipts sheet frame (32) are articulated each other, it is fixed with the lateral wall of base member (11) to receive sheet frame (32), heating panel (31) one side is connected with curb plate (14), and the opposite side is connected with receipts sheet frame (32) diapire, a plurality of louvres (33) have been seted up on heating panel (31).
3. The heat dissipating type three-phase molded case circuit breaker load phase modulation switch box according to claim 2, wherein: one side of the base body (11) facing the side plate (14) is provided with a fixing groove (111) for clamping the side plate (14), and a sealing block (141) is arranged at the position of the side plate (14) corresponding to the fixing groove (111).
4. The heat dissipating type three-phase molded case circuit breaker load phase modulation switch box according to claim 2, wherein: adjusting member (4) are including adjusting motor (41), swivel nut pipe (42) and screw rod (43), adjusting motor (41) are fixed with interior framework (2), adjusting motor (41) and swivel nut pipe (42) coaxial coupling, screw rod (43) one end is connected towards one side of interior framework (2) with curb plate (14), the other end and swivel nut pipe (42) threaded connection.
5. The heat dissipation type three-phase molded case circuit breaker load phase modulation switch box according to any one of claims 2 to 4, characterized in that: adjustment tank (112) have been seted up at base member (11) top, be provided with in adjustment tank (112) with higher speed subassembly (5), with higher speed subassembly (5) are including radiator fan (51), lead screw (52), slide bar (53) and moving motor (54), radiator fan (51) slide with adjustment tank (112) and are connected, one side that base member (11) deviates from interior framework (2) is provided with support (55), support (55) are established respectively in adjustment tank (112) both sides, slide bar (53) and lead screw (52) are worn to establish respectively in support (55) of adjustment tank (112) both sides, slide bar (53) and lead screw (52) are worn to establish the both sides at radiator fan (51), lead screw (52) and radiator fan (51) threaded connection, moving motor (54) and lead screw (52) coaxial coupling.
6. The heat dissipating type three-phase molded case circuit breaker load phase modulation switch box according to claim 5, wherein: the heat dissipation fan is characterized in that a protective cover (6) covering the heat dissipation fan (51) is further arranged at the top of the base body (11), and an air suction opening (61) is formed in one side of the protective cover (6).
7. The heat dissipating type three-phase molded case circuit breaker load phase modulation switch box according to claim 6, wherein: and a filter screen (62) is arranged at the air suction opening (61).
8. The heat dissipation type three-phase molded case circuit breaker load phase modulation switch box according to any one of claims 1 or 7, characterized in that: the base body (11) further comprises a bottom frame (15), an intermediate plate (16) for supporting the inner frame body (2) is arranged between the bottom frame (15) and the inner frame body (2), heat dissipation grooves (161) are formed in the intermediate plate (16), and heat dissipation panels (151) are arranged on the outer walls of the four sides of the bottom frame (15).
9. The heat dissipating type three-phase molded case circuit breaker load phase modulation switch box according to claim 8, wherein: one side of the bottom frame (15) departing from the heat dissipation panel (151) is provided with a waterproof plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922492344.XU CN211239027U (en) | 2019-12-30 | 2019-12-30 | Heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922492344.XU CN211239027U (en) | 2019-12-30 | 2019-12-30 | Heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211239027U true CN211239027U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922492344.XU Expired - Fee Related CN211239027U (en) | 2019-12-30 | 2019-12-30 | Heat dissipation type three-phase moulded case circuit breaker load phase modulation switch box |
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| Country | Link |
|---|---|
| CN (1) | CN211239027U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225953A (en) * | 2021-05-07 | 2021-08-06 | 江西雕视信息技术股份有限公司 | Device and method capable of supporting high-resolution point-to-point display coding and decoding |
| CN114122981A (en) * | 2021-11-04 | 2022-03-01 | 国网辽宁省电力有限公司铁岭供电公司 | Block terminal for high temperature area |
-
2019
- 2019-12-30 CN CN201922492344.XU patent/CN211239027U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225953A (en) * | 2021-05-07 | 2021-08-06 | 江西雕视信息技术股份有限公司 | Device and method capable of supporting high-resolution point-to-point display coding and decoding |
| CN113225953B (en) * | 2021-05-07 | 2022-12-13 | 江西雕视信息技术股份有限公司 | Device and method capable of supporting high-resolution point-to-point display coding and decoding |
| CN114122981A (en) * | 2021-11-04 | 2022-03-01 | 国网辽宁省电力有限公司铁岭供电公司 | Block terminal for high temperature area |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |
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| CF01 | Termination of patent right due to non-payment of annual fee |