CN218887098U - Over-temperature protection mechanism of adjustable variable frequency power supply - Google Patents
Over-temperature protection mechanism of adjustable variable frequency power supply Download PDFInfo
- Publication number
- CN218887098U CN218887098U CN202223431975.9U CN202223431975U CN218887098U CN 218887098 U CN218887098 U CN 218887098U CN 202223431975 U CN202223431975 U CN 202223431975U CN 218887098 U CN218887098 U CN 218887098U
- Authority
- CN
- China
- Prior art keywords
- power supply
- frequency power
- variable frequency
- adjustable variable
- movable
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
The utility model discloses an adjustable variable frequency power supply's excess temperature protection mechanism belongs to adjustable variable frequency power supply technical field, including adjustable variable frequency power supply, wiring port, unwrapping wire groove, the inside outside of adjustable variable frequency power supply is provided with the sealed heat dissipation mechanism that can improve adjustable variable frequency power supply self protection and the excess temperature protection mechanism that automatic start protected adjustable variable frequency power supply when adjustable variable frequency power supply's wiring port electric current is too big unusual. The utility model discloses a set up excess temperature protection mechanism, through the cooperation use between bimetallic strip, connecting rod, movable rod, fixture block, insulating connecting rod, pull rod, interior activity groove, movable block, draw-in groove, spring telescopic link, line ball piece, activity chamber, the activity depression bar, can lead to the automatic electric wire of extracting under the overheated condition in the conductive terminal circular telegram unusually to play the effect of cutting off circuit connection, and then played the effect of protecting adjustable variable frequency power supply.
Description
Technical Field
The utility model belongs to the technical field of adjustable variable frequency power supply, specifically be an adjustable variable frequency power supply's excess temperature protection mechanism.
Background
When adjustable variable frequency power supply is using, often can adjust the electric current of flowing through of power according to the user demand, and if not break down in the power to can lead to the electric current too big to lead to the inside high temperature that lasts of power, burn out the power easily like this, consequently need the power to make automatic cutout circuit in the trouble, consequently need an adjustable variable frequency power supply's excess temperature protection mechanism.
Wherein, through the retrieval discovery, there is a patent number CN202023088839.5 LED drive power supply unit with excess temperature protection, including drive power supply unit main part, mounting panel, fan, motor, card ball, installation base and support column, the wiring mouth has been seted up to one side surface of mounting panel, this kind is novel to have increase draught area, is convenient for dispel the heat, and the card ball is used for fixed and the installation to the motor, brings the effect of fine use prospect.
Research and analysis show that the device is not provided with a mechanism which can automatically disconnect the connection between the wiring port of the power supply and the electric wire when the current flowing through the power supply is too large to cause high temperature, so that the failure of automatic disconnection can cause further high-temperature secondary damage inside the power supply, and the device is not provided with a mechanism which can further improve the heat dissipation efficiency and the self-sealing performance of the power supply, so that the water resistance of the power supply is general and the heat dissipation performance is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an: in order to solve the problems, an over-temperature protection mechanism of an adjustable variable frequency power supply is provided.
The utility model adopts the technical scheme as follows: the utility model provides an adjustable variable frequency power supply's excess temperature protection mechanism, includes adjustable variable frequency power supply, wiring port, wire casing, conductive terminal, the supporting wiring port that is provided with of adjustable variable frequency power supply one end, and adjustable variable frequency power supply top is netted setting, wiring port one end is provided with, the wire casing, the inside supporting conductive terminal that is provided with of wiring port, the inside outside of adjustable variable frequency power supply is provided with can improve the sealed heat dissipation mechanism of adjustable variable frequency power supply self protectiveness and the excess temperature protection mechanism who carries out the protection to adjustable variable frequency power supply when adjustable variable frequency power supply's wiring port electric current is too big unusual.
The over-temperature protection mechanism comprises a bimetallic strip, a connecting rod, a movable rod, a clamping block, an insulating connecting rod, a pull rod, an inner movable groove, a movable block, a clamping groove, a spring telescopic rod, a line pressing block, a movable cavity and a movable pressing rod, wherein the top of one end of the conductive terminal is connected with the bimetallic strip, the connecting rod is arranged inside the wiring port and close to the upper part of the bimetallic strip, one end of the connecting rod is provided with the movable rod through torsion spring rotation, the bottom of one end of the movable rod is provided with the clamping block, the top of the bimetallic strip is connected with the bottom of the movable rod through a rotating shaft, the inner movable end of the wiring port is provided with the pull rod, the pull rod is connected with the top of the movable rod through a connecting rope, the inner movable groove is arranged inside the wiring port and close to the top of the line releasing groove, the movable block is elastically connected with the inside of the inner movable groove through a spring, the clamping groove is arranged at the top of the movable block and is connected with the clamping block, the wiring port, the movable cavity is arranged outside the wiring port and close to the outer end of the inner movable groove, the movable rod is provided with the movable cavity, the movable pressing rod extends to the outside of the wiring cavity, the outer side of the wiring port, the wiring port is provided with the plastic sliding groove, the outer side of the wiring port, the sliding groove, and the outer side of the sliding groove.
Wherein, sealed heat dissipation mechanism includes magnetism and inhales inside groove, seal cover, magnetism and inhales outer edge, heat conduction silica gel piece, heat radiation fins, wherein, the inside magnetism of inhaling of wire casing outer wall is provided with, adjustable variable frequency power supply outside has the seal cover, and passes through the connecting rod between the dead slot that the movable chamber bottom set up and the seal cover bottom the activity depression bar to be connected, and is fixed through the locking bolt centre gripping between the insulating protective cover of seal cover and electric wire, seal cover one end is provided with magnetism and inhales outer edge, and magnetism inhale outer edge and inhale the inside groove directly to agree with the absorption setting with magnetism, and seal through the sealing rubber ring between the two, the electronic component top of adjustable variable frequency power supply internal circuit board all laminates and is provided with the heat conduction silica gel piece, heat radiation fins is installed at heat conduction silica gel piece top, and heat radiation fins extends to the adjustable variable frequency power supply top outside.
The wire pressing block is made of rubber.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, through setting up excess temperature protection mechanism, use through the cooperation between bimetallic strip, connecting rod, movable rod, fixture block, insulating connecting rod, pull rod, interior activity groove, movable block, draw-in groove, spring telescopic link, line ball piece, activity chamber, the activity depression bar, can lead to the electric wire to extract automatically under the overheated condition in conductive terminal circular telegram unusually to play the effect of cutting off circuit connection, and then played the effect of protecting adjustable variable frequency power supply.
2. The utility model discloses in, through setting up sealed heat dissipation mechanism, inhale through magnetism and inhale interior groove, seal cover, magnetism and inhale outer edge, heat conduction silica gel piece, heat radiation fins between the cooperation use can seal the unwrapping wire groove of wiring port and the place of electric wire contact, prevent that moisture from getting into to can carry out high efficiency to the heat of adjustable variable frequency power supply inside production and derive, play supplementary radiating effect, improve adjustable variable frequency power supply's life.
Drawings
FIG. 1 is a schematic diagram of the overall three-dimensional structure of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic diagram of an enlarged structure at A in FIG. 2 according to the present invention;
fig. 4 is a schematic diagram of an enlarged structure at B in fig. 3 according to the present invention;
fig. 5 is a schematic diagram of the internal partial three-dimensional structure of the present invention.
The labels in the figure are: 1. an adjustable variable frequency power supply; 101. a wiring port; 102. a wire releasing groove; 1021. magnetically attracting the inner groove; 2. a conductive terminal; 201. a bimetal; 3. a connecting rod; 301. a movable rod; 3011. a clamping block; 302. an insulating connecting rod; 303. a pull rod; 4. an inner movable groove; 401. a movable block; 402. a card slot; 403. a spring telescopic rod; 404. a line pressing block; 5. a movable cavity; 501. a movable pressure lever; 6. sealing sleeves; 601. magnetically attracting the outer edge; 7. a heat-conducting silica gel sheet; 701. and heat dissipation fins.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-5, an over-temperature protection mechanism of an adjustable variable frequency power supply comprises an adjustable variable frequency power supply 1, a wiring port 101, a wire releasing groove 102 and conductive terminals 2, wherein the wiring port 101 is arranged at one end of the adjustable variable frequency power supply 1 in a matched manner, the top of the adjustable variable frequency power supply 1 is arranged in a net manner, one end of the wiring port 101 is provided with the wire releasing groove 102, the conductive terminals 2 are arranged in the wiring port 101 in a matched manner, a sealing heat dissipation mechanism capable of improving self protection of the adjustable variable frequency power supply is arranged at the inner outer side of the adjustable variable frequency power supply, and the over-temperature protection mechanism is automatically started to protect the adjustable variable frequency power supply when the current of the wiring port of the adjustable variable frequency power supply is too large and abnormal.
Referring to fig. 1-5, in this embodiment, the over-temperature protection mechanism includes a bimetal 201, a connecting rod 3, a movable rod 301, a fixture block 3011, an insulating connecting rod 302, a pull rod 303, an inner movable groove 4, a movable block 401, a clamping groove 402, a spring expansion link 403, a wire pressing block 404, a movable cavity 5, and a movable press rod 501, wherein the top of one end of a conductive terminal 2 is connected with the bimetal 201, the connecting rod 3 is installed inside a wiring port 101 near the upper side of the bimetal 201, one end of the connecting rod 3 is provided with the movable rod 301 through a torsion spring, the bottom of one end of the movable rod 301 is provided with the fixture block 3011, the insulating connecting rod 302 is connected between the top end of the bimetal 201 and the bottom of the movable rod 301 through a rotating shaft, the pull rod 303 is movably installed inside the wiring port 101, the pull rod 303 is connected with the top of the movable rod 301 through a connecting rope, the inner movable groove 4 is arranged inside the wiring port 101 near the upper side of the wire pressing groove 102, the inner movable groove 4 is elastically connected with a movable block 401 through a spring, the top of one end of the movable block 401 is provided with a clamping groove 402, the clamping groove 402 and a clamping block 3011 are arranged in a matched and clamped mode, the outer side of the wiring port 101 is provided with a movable cavity 5 close to the other end of the outer side of the inner movable groove 4, the inner part of the movable cavity 5 is movably provided with a movable pressure lever 501, the other end of the movable pressure lever 501 extends to the outer side of the movable cavity 5, the bottom of the movable cavity 5 is provided with a hollow groove, the inner movable groove 4 is communicated with the movable cavity 5, the bottom of the inner movable groove 4 is provided with a pressure line block 404 through a spring telescopic rod 403, two ends of the outer side of the pressure line block 404 are provided with plastic pull rods, the pull rods extend to the outer side of the wiring port 101, the pull rods and are arranged in a sliding mode with sliding mode between the sliding grooves on the surface of the wiring port 101, a user uses the adjustable variable frequency power supply 1 to work, if the current flowing through the conductive terminal 2 of the adjustable variable frequency power supply 1 is too large, therefore, the conductive terminal 2 is subjected to heat exceeding the limit, the heat is conducted on the surface of the bimetal 201, and the excessively high heat causes one end of the bimetal 201 to deform, one end of the deformed bimetal 201 moves upwards, so that the insulating connecting rod 302 at one end of the bimetal 201 is driven to push the movable rod 301 to rotate upwards under the action of the rotating shaft, so that the clamping block 3011 at the bottom of the movable rod 301 is released from being buckled with the clamping groove 402, the accumulated spring drives the movable block 401 to pop out, the movable pressure rod 501 is pushed to move synchronously while popping out, the sealing sleeve 6 is forcibly drawn out while the movable pressure rod 501 moves, an electric wire is drawn out from the wiring port 101 when the clamping bolt is clamped and dropped, so that the electric wire is electrically connected with the conductive terminal 2, and then a worker can push the movable pressure rod 501 to push the movable block 401 inside the inner movable groove 4 through the spring accumulated force, lift the pull rod 303 to drive the movable rod 301 to rotate, and then loosen the pull rod 303, so that the movable rod 301 rebounds under the action of the torsion spring, and the clamping block 3011 and the clamping groove 402 are buckled again.
Referring to fig. 1-5, in this embodiment, the sealing heat dissipation mechanism includes a magnetic suction inner slot 1021, a sealing sleeve 6, a magnetic suction outer edge 601, a heat conductive silicone sheet 7, and heat dissipation fins 701, wherein the magnetic suction inner slot 1021 is disposed inside an outer wall of the pay-off slot 102, the sealing sleeve 6 is disposed outside the adjustable variable frequency power supply 1, a bottom of the movable pressure rod 501 passes through a hollow slot disposed at a bottom of the movable cavity 5 and is connected to the sealing sleeve 6 through a connecting rod, the sealing sleeve 6 and an insulating protective sleeve of the electric wire are clamped and fixed by a locking bolt, the magnetic suction outer edge 601 is disposed at one end of the sealing sleeve 6, the magnetic suction outer edge 601 and the magnetic suction inner slot 1021 are directly engaged and absorbed, and are sealed by a sealing rubber ring, top portions of electronic components on a circuit board inside the adjustable variable frequency power supply 1 are both provided with the heat conductive silicone sheet 7, the heat dissipation fins 701 are mounted on top portions of the heat conductive silicone sheet 7, and the heat dissipation fins 701 extend to an outer side of the top portion of the adjustable variable frequency power supply 1, when the adjustable variable frequency power supply 1 is used, the electronic components on the circuit board inside the adjustable variable frequency power supply 1 generate heat dissipation fins 701, and then dissipate heat quickly through the heat via the heat dissipation fins 701.
Referring to fig. 1 to 5, in the present embodiment, the wire pressing block 404 is made of rubber, and the rubber has good insulation, so that the wire pressing block 404 can be used as the wire pressing block 404 to prevent the wire pressing block 404 from being electrified when compacting the wire conductor.
Referring to fig. 1-5, in the present embodiment, the adjustable variable frequency power supply is electrically connected to an external power supply through a switch.
Example two:
referring to fig. 1-5, in the present invention, another embodiment is provided besides the embodiment of the fastening block 3011 made of rubber material, in which the fastening block 3011 is made of silica gel material, and the fastening block 3011 is made of silica gel material;
The working principle is as follows: firstly, an installer inserts an electric wire into the inner side of the gland 6, inserts a conductor at one end of the electric wire into the wiring port 101, then pulls a plastic pull rod upwards to enable the wire pressing block 404 to move upwards under the action of the spring telescopic rod 403, when the conductor is positioned below the wire pressing block 404, loosens the plastic pull rod to enable the wire pressing block 404 to rebound under the action of the spring telescopic rod 403, compacts the conductor of the electric wire through the wire pressing block 404 made of rubber to enable the conductor to be fully contacted with the conductive terminal 2, thereby completing the connection of the electric wire, simultaneously inserts the magnetic outer edge 601 at one end of the gland 6 into the magnetic inner groove 1021, seals the connection part of the electric wire and the wiring port 101 through the contact of the sealing rubber ring and the inner wall of the magnetic inner groove 1021, then screws the locking bolt gland into the gland 6 to clamp the outer wall of the electric wire in the gland 6 through the locking bolt, clamps the electric wire, and then, the user uses the adjustable variable frequency power supply 1 to work, if the current flowing through the conductive terminal 2 of the adjustable variable frequency power supply 1 is too large, so that the conductive terminal 2 is heated to an excessive extent, the heat is conducted on the surface of the bimetallic strip 201, the excessive heat causes one end of the bimetallic strip 201 to deform, one end of the deformed bimetallic strip 201 moves upwards, so as to drive the insulating connecting rod 302 at one end of the bimetallic strip 201 to push the movable rod 301 to rotate upwards under the action of the rotating shaft, so that the clamping block 3011 at the bottom of the movable rod 301 is released from being buckled with the clamping groove 402, so that the power-accumulating spring drives the movable block 401 to pop out, the movable pressure rod 501 is pushed to move synchronously while popping out, the sealing sleeve 6 is forcibly drawn out while the movable pressure rod 501 moves, and the clamping descending wire of the locking bolt is pulled out from the wiring port 101, so as to release the electrical connection between the wire and the conductive terminal 2, afterwards, a worker can push the movable pressing rod 501 to push the movable block 401 to store force through a spring in the inner movable groove 4, then lift the pull rod 303 to drive the movable rod 301 to rotate, then loosen the pull rod 303 to enable the movable rod 301 to rebound under the action of the torsion spring, so that the clamping block 3011 and the clamping groove 402 are buckled again, when the adjustable variable frequency power supply 1 is used, an electronic element on a circuit board in the adjustable variable frequency power supply 1 is caused to generate heat, at the moment, the heat is conducted on the heat dissipation fins 701 through the heat conduction silicon rubber sheet 7, and then the heat is conducted to the outside rapidly through the heat dissipation fins 701 to perform auxiliary heat dissipation.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides an adjustable variable frequency power supply's excess temperature protection mechanism, includes adjustable variable frequency power supply (1), wiring port (101), unwrapping wire groove (102), conductive terminal (2), the supporting wiring port (101) that is provided with of adjustable variable frequency power supply (1) one end, wiring port (101) one end is provided with, unwrapping wire groove (102), wiring port (101) inside supporting conductive terminal (2), its characterized in that of being provided with: the inside outside of adjustable variable frequency power supply is provided with the sealed heat dissipation mechanism that can improve adjustable variable frequency power supply self protectiveness and when adjustable variable frequency power supply's wiring port current was too big unusual the automatic start carries out the excess temperature protection mechanism that protects adjustable variable frequency power supply.
2. The over-temperature protection mechanism of the adjustable variable frequency power supply as claimed in claim 1, wherein: the over-temperature protection mechanism comprises a bimetallic strip (201), a connecting rod (3), a movable rod (301), a clamping block (3011), an insulating connecting rod (302), a pull rod (303), an inner movable groove (4), a movable block (401), a clamping groove (402), a spring telescopic rod (403), a line pressing block (404), a movable cavity (5) and a movable pressing rod (501), wherein the top of one end of each conductive terminal (2) is connected with the bimetallic strip (201), the connecting rod (3) is arranged in the wiring port (101) close to the upper portion of the bimetallic strip (201), the movable rod (301) is arranged at one end of the connecting rod (3) through torsion spring rotation, the clamping block (3011) is arranged at the bottom of one end of the movable rod (301), the insulating connecting rod (302) is connected between the top end of the bimetallic strip (201) and the bottom of the movable rod (301) through a rotating shaft, the pull rod (303) is movably arranged in the wiring port (101), the inner movable groove (4) is arranged in the wiring port (101) close to the upper portion of the wiring groove (102), the movable groove (401) is elastically connected with the movable block (401) through the spring, the other end of the movable groove (401) is arranged at the top of the wiring port (401), and the outer side of the wiring port (4) is arranged at the outside of the wiring port (4), the movable cavity (5) is movably provided with a movable pressure lever (501), and the bottom of the inner movable groove (4) is provided with a line pressing block (404) through a spring telescopic rod (403).
3. The over-temperature protection mechanism of the adjustable variable frequency power supply as claimed in claim 1, wherein: sealed heat dissipation mechanism is including magnetism inhale inside groove (1021), seal cover (6), magnetism inhale outer edge (601), heat conduction silica gel piece (7), heat radiation fins (701), wherein, wire casing (102) outer wall is inside to be provided with magnetism and to inhale inside groove (1021), adjustable variable frequency power supply (1) outside has seal cover (6), seal cover (6) one end is provided with magnetism and inhales outer edge (601), the electronic component top of adjustable variable frequency power supply (1) internal circuit board all laminates and is provided with heat conduction silica gel piece (7), heat radiation fins (701) are installed at heat conduction silica gel piece (7) top.
4. The over-temperature protection mechanism of the adjustable variable frequency power supply as claimed in claim 2, wherein: the pull rod (303) is connected with the top of the movable rod (301) through a connecting rope, a clamping groove (402) and a clamping block (3011) are arranged in a matched and clamped mode, the other end of the movable pressing rod (501) extends to the outer side of the movable cavity (5), a hollow groove is formed in the bottom of the movable cavity (5), and the inner movable groove (4) is communicated with the movable cavity (5).
5. The over-temperature protection mechanism of the adjustable variable frequency power supply as claimed in claim 3, wherein: radiating fin (701) extend to adjustable variable frequency power supply (1) top outside, and adjustable variable frequency power supply (1) top is netted setting, and magnetism inhale outer edge (601) and magnetism inhale interior groove (1021) and directly be to agree with and adsorb the setting, and seal through sealed rubber ring between the two, and pass through the locking bolt centre gripping between seal cover (6) and the insulating lag of electric wire and fix.
6. The over-temperature protection mechanism of the adjustable variable frequency power supply according to claim 2, characterized in that: the bottom of the movable pressure rod (501) penetrates through a hollow groove formed in the bottom of the movable cavity (5) and is connected with the sealing sleeve (6) through a connecting rod, plastic pull rods are arranged at two ends of the outer side of the line pressing block (404), the pull rods extend to the outer side of the wiring port (101), and the pull rods and sliding grooves in the surface of the wiring port (101) are arranged in a sliding mode.
7. The over-temperature protection mechanism of the adjustable variable frequency power supply as claimed in claim 2, wherein: the line pressing block (404) is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223431975.9U CN218887098U (en) | 2022-12-21 | 2022-12-21 | Over-temperature protection mechanism of adjustable variable frequency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223431975.9U CN218887098U (en) | 2022-12-21 | 2022-12-21 | Over-temperature protection mechanism of adjustable variable frequency power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218887098U true CN218887098U (en) | 2023-04-18 |
Family
ID=85977998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223431975.9U Active CN218887098U (en) | 2022-12-21 | 2022-12-21 | Over-temperature protection mechanism of adjustable variable frequency power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218887098U (en) |
-
2022
- 2022-12-21 CN CN202223431975.9U patent/CN218887098U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211265384U (en) | Microcomputer intelligent protection molded case circuit breaker | |
| CN218887098U (en) | Over-temperature protection mechanism of adjustable variable frequency power supply | |
| CN201180966Y (en) | High power LED lamp refrigerating device | |
| CN114286570A (en) | Electric vehicle controller with good performance | |
| CN216355503U (en) | Control box for building heating and ventilation | |
| CN212726892U (en) | High-power high-voltage solid soft start cabinet | |
| CN212845581U (en) | Charged display device with heat dissipation function | |
| CN211788738U (en) | Novel switch with waterproof construction | |
| CN212301653U (en) | Electric energy gauge pressure sheet type wiring terminal | |
| CN212113957U (en) | High battery of security | |
| CN111417277B (en) | Power supply structure of single-phase inverter testing device | |
| CN218101127U (en) | High-efficient heat dissipation moulded case circuit breaker connecting plate | |
| CN216086132U (en) | Protector for electricity consumption | |
| CN217114381U (en) | Semiconductor control panel with remove water smoke function | |
| CN212750643U (en) | Power switch protection device for civil engineering construction | |
| CN212570841U (en) | Indoor high-voltage vacuum circuit breaker | |
| CN216288214U (en) | Novel moulded case circuit breaker convenient to mounting structure | |
| CN216250585U (en) | Circuit breaker protective housing with waterproof heat dissipation function | |
| CN217643857U (en) | Electronic circuit board with heat dissipation function | |
| CN215420804U (en) | PTC heater seal structure | |
| CN219643577U (en) | Combined switch circuit protector | |
| CN217159076U (en) | Building electrical distribution device | |
| CN214665889U (en) | Internal dryer of chip mounter | |
| CN217387298U (en) | Energy-saving and environment-friendly module box | |
| CN212625435U (en) | Circuit breaker wiring terminal capable of self-radiating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |