2305 results about "Junction box" patented technology

The invention provides a YOLOv7-based photovoltaic module fault detection method and a YOLOv7-based photovoltaic module fault detection device, and relates to the technical field of target detection. According to the method, a thermal infrared and temperature information fusion module is introduced at the front end of a network, a thermal infrared image and a pixel-level temperature matrix thereof are fused through alignment, coding and attention mechanisms, and the characterization capability of multi-modal features is enhanced. A shallow layer-deep layer information aggregation module is introduced into the neck network, and the context perception and feature discrimination ability of the model to a multi-scale small target is improved. A global context sensing module is introduced in front of a detection head, a directional channel context branch and a query-key value branch of the global context sensing module capture directional global dependence and spatial context relations respectively, and global modulation of features is achieved. According to the method, the detection precision and robustness of various faults such as faults, fragmentation, hot spots and shielding of the photovoltaic module junction box are remarkably improved, the weak and small target positioning capability is optimized, the method is suitable for being deployed on mobile or embedded equipment, and efficient and intelligent inspection of a photovoltaic power station is achieved.

The utility model discloses an electric heater junction box with a wire arrangement function, which relates to the technical field of electric heaters, and comprises a junction box, a wire inlet and a wire outlet are respectively arranged at two ends of the junction box, wire arrangement mechanisms are arranged at upper and lower symmetrical positions in the junction box, a box cover is arranged on one side of the junction box, and the box cover is connected with the junction box through a fixing mechanism. According to the utility model, through the wire arrangement mechanism, the position of the U-shaped frame can be adjusted according to needs, wire harnesses in the junction box can be classified and clamped into the U-shaped frame, and then the wire harnesses are connected with the wire arrangement seat through the limiting frame, so that the wire harnesses are restrained and limited, disorder of the wire harnesses is avoided, later maintenance is facilitated, the workload of maintenance workers is reduced, and the working efficiency is improved. The wire arranging seat and the limiting frame can be quickly detached or connected, so that the later maintenance is facilitated, the use is convenient, and the practicability is higher; according to the utility model, through the fixing mechanism, the box cover can be conveniently and rapidly disassembled or fixed, so that the interior of the junction box can be conveniently disassembled in the later period for overhaul and maintenance.

Disclosed in the present application is a disassembly device, comprising a carrying base, and a loading apparatus, a junction box and frame removal apparatus, a glass sheet removal apparatus and a backsheet removal apparatus, which are arranged on the carrying base, wherein the loading apparatus is used for gripping a photovoltaic panel at a loading station; the junction box and frame removal apparatus is arranged downstream of the loading apparatus, and is used for removing a junction box and a frame of the photovoltaic panel conveyed by the loading apparatus; and the glass sheet removal apparatus and the backsheet removal apparatus are both arranged downstream of the junction box and frame removal apparatus, the glass sheet removal apparatus is used for removing a glass sheet of the photovoltaic panel, and the backsheet removal apparatus is used for removing a backsheet of the photovoltaic panel.

The invention relates to the technical field of electric heater preheating, in particular to an electric heater preheating system and method. Wherein the electric heater comprises a shell, an electric heating tube and a junction box; the preheating device comprises a hot air module, a control module, a pressure sensor, a temperature and humidity sensor and a switch valve. The hot air module comprises a draught fan, a heating piece and a connecting air pipe, and the connecting air pipe is connected with the first pipe opening so that hot air generated by the hot air module can be input into the shell through the first pipe opening. The second pipe orifice is used for discharging air, the pressure sensor and the temperature and humidity sensor are arranged at the second pipe orifice to detect a pressure value, a temperature value and a humidity value, and the switch valve is arranged at the second pipe orifice to adjust the opening and closing and / or the opening degree of the second pipe orifice. When the electric heater is in a shutdown state, the external preheating device is connected with the electric heater to form a preheating system, energy of a molten salt system does not need to be depended on, non-internal circulation air is utilized, and preheating and moisture removal of the electric heater are achieved.

An electrical junction box includes a case; a circuit unit; a wire harness for connecting another device with the circuit unit; a first terminal supporting a first electric wire electrically connected to the circuit unit; and a second terminal supporting a second electric wire electrically connected to the circuit unit. When a direction along one side of the first surface is defined as a left-right direction and a direction along the other side of the first surface is defined as an up-down direction, the first terminal and the second terminal are located in a first region on one side in the left-right direction with the part of the wire harness as reference, and the first terminal and the second terminal are at different positions from each other in the up-down direction in the first region.

The invention provides a method and device for identifying and diagnosing the wiring state of a combined junction box, and the method comprises the steps: collecting a multi-view two-dimensional image and multispectral three-dimensional point cloud data, and carrying out the calibration and fusion of a sensor, thereby forming a multispectral fusion point cloud; image features are decomposed into domain invariant semantic features and domain related style features by using a cross-domain feature decoupling mechanism, and a semantic segmentation result and a two-dimensional topological semantic graph are generated in combination with a double attention mechanism; constructing a three-dimensional geometric spectrum field based on implicit neural representation, and obtaining accurate three-dimensional space coordinates of a wiring assembly and a joint through differentiable rendering and consistency constraint optimization; and constructing a space-time consistency enhanced wiring information graph by taking the space coordinates as anchor points, carrying out multi-scale anomaly detection by adopting a self-supervised contrast learning model, and generating a defect significance graph and a diagnosis result. According to the method, the problems of poor identification stability, low cross-modal registration precision, difficulty in unknown defect detection and the like in a complex environment are effectively solved, and the automation degree and reliability of wiring state identification are remarkably improved.

An electrical junction box includes: a housing containing a relay that generates heat when energized; and a cover member that covers a terminal provided on one surface of the relay, and that covers a surrounding area of the terminal, wherein the cover member has a first air vent that allows airflow inside and outside of the cover member.

The invention discloses a photovoltaic module. The photovoltaic module comprises a battery unit group and a connecting structure, the battery unit group comprises a plurality of battery strings which are connected in series and / or in parallel; the connection structure comprises a bypass strip, the bypass strip is arranged between adjacent battery unit groups, the bypass strip comprises a first non-lead-out part, a second non-lead-out part and a lead-out part, the lead-out part is connected between the first non-lead-out part and the second non-lead-out part, and the lead-out part extends in the direction away from the first non-lead-out part and the second non-lead-out part. The lead-out part, the first non-lead-out part and the second non-lead-out part are integrally formed. Therefore, the leading-out part is formed on at least part of the bypass strip, the structure of the bypass strip is simplified, compared with the design of multiple leading-out ends of the bypass strip, the welding procedure can be reduced through one leading-out end, and the installation difficulty can be reduced when the leading-out part is connected with the junction box. And meanwhile, the bypass strip is integrally formed, so that the thickness of the non-lead-out part is prevented from being increased, and the risk of cracking the battery pieces on the battery string is effectively reduced.

The invention relates to the technical field of wind power blades, in particular to a distributed optical fiber monitoring system for monitoring cracks of a wind power blade. Comprising a distributed optical fiber sensor, a demodulator, a wireless network bridge, a junction box and a jumper wire, when the surface of a wind power blade main body is subjected to abnormal stress, the distributed optical fiber sensor is synchronously subjected to the abnormal stress, so that strain information of the blade surface is monitored, and the strain information is transmitted to the demodulator through an optical fiber signal; finally, the demodulator transmits data to a remote monitoring platform and gives an alarm in time, a remote operator can stop operation of the fan in time, dangerous accidents are avoided, the distributed optical fiber sensors do not belong to electrical equipment, optical signal transmission is adopted, the danger of lightning triggering is eradicated, and the safety of the fan is improved. Alarm and early warning can be carried out in advance when 1 mm tiny cracks appear on the blade body, the aim of early finding and early treatment is achieved, losses are reduced to the minimum, and small faults are prevented from becoming major safety accidents.

The invention relates to the technical field of optical fiber communication equipment, and discloses an optical fiber splice closure with a positioning function and an application system. The junction box body is composed of a bottom box frame and a top box cover, the top box cover is installed at the top of the bottom box frame through bolts, pipe inlet holes are formed in the two sides of the junction box body, and the pipe inlet holes are used for leading external optical fiber pipes into the junction box body; the bottom box frame is provided with a welding disc, the welding disc is used for connecting optical fiber pipe joints, the top of the welding disc is provided with a low-frequency RFID positioning module, and through the arrangement of the low-frequency RFID positioning module on the optical fiber splice closure, when optical fiber pipe transmission goes wrong, through a positioning management system, the optical fiber splice closure can be accurately positioned. A worker can quickly obtain the position information of the fault junction box and formulate an optimal maintenance route, so that the maintenance efficiency is improved, the network interruption time caused by a fault is reduced, and the stable operation of a communication network is ensured.

The utility model, which relates to the technical field of the photovoltaic assembly recovery, discloses a photovoltaic assembly frame dismounting machine comprising a frame, a front pressing mechanism, a back supporting mechanism and a frame dismounting mechanism. Frame disassembling positions are arranged in the machine frame, a rectangular frame body is fixed on the peripheral side, the front face downward pressing mechanism is fixed to the top of the machine frame, comprises a pressing plate and a first driving mechanism and is used for getting close to or getting away from a photovoltaic module, and the back face supporting mechanism is located below the module and comprises a supporting table and a second driving mechanism. The clamping mechanism comprises a manipulator and a third driving mechanism and is used for clamping a photovoltaic module frame; when in use, the front pressing mechanism and the back supporting mechanism are clamped and fixed from the top and bottom of the assembly, and the frame disassembling mechanism is used for disassembling the frame from the periphery. By adopting the frame dismounting machine, the frame dismounting efficiency and the frame dismounting quality of the photovoltaic module can be improved, the problem of fragmentation of photovoltaic glass can be reduced, the junction box can be dismounted, and the recycling value of recycled objects can be improved.

The invention is related to a modular wiring passage and junction system (10) for supplying power to electric vehicle chargers or other electrical devices in the public road.The modular system (10) of the invention comprises curb elements (11) connected and aligned with each other and with junction box elements (12) and corner box elements (13).To close the junction box (12) and the corner box (13) elements there exist junction box covers (15) and corner box covers (17) which are removable by means of a cover removal device (16).The curb element (11), the junction box element (12) and the corner box element (13) comprise through holes in their interior for the passage of wiring and on a front face an inclined portion (113) for an access ramp.

The invention discloses an optical cable cross-connecting box integrated with environmental monitoring, which is applied to the technical field of optical cable cross-connecting boxes, the environment of the optical cable cross-connecting box is monitored through an environmental monitoring module, opening and closing adjustment of a cold air hole is carried out according to an environmental monitoring result, and the cold air hole is opened and closed in sunny weather. Cold air moving from bottom to top in the cold air chamber blows to the optical cable connection module from the cold air holes to cool the optical cable connection module, the lifting support drives the closing plate to ascend to close the cold air holes in cloudy and rainy days, rainwater is utilized to infiltrate the inner wall of the cold air chamber, and volatilization of the rainwater is accelerated in cooperation with the cold air moving upwards in the cold air chamber. Therefore, water-cooling heat dissipation of the cold air chamber to the optical cable connection module in the box body is realized, high-humidity cold air is effectively prevented from contacting the optical cable connection module, and short circuit of the optical cable connection module due to moisture is effectively prevented.

The utility model relates to the technical field of pneumatic control systems, in particular to a single-action pneumatic PST system, which comprises a pneumatic actuating mechanism, a cam valve and an explosion-proof junction box, a valve position transponder is arranged at the front end of the pneumatic actuating mechanism, one end of the cam valve is communicated with a filtering pressure reducing valve, one end of the filtering pressure reducing valve is communicated with a safety valve, and the other end of the filtering pressure reducing valve is communicated with an explosion-proof junction box. And one end of the explosion-proof junction box is connected with a first electromagnetic valve and a second electromagnetic valve respectively. According to the improved single-action pneumatic PST system, the first electromagnetic valve, the hand-operated direction valve and the second electromagnetic valve are adopted, and when the single-action pneumatic PST system is used, flexible control can be conducted when the single-action pneumatic PST system faces complex working conditions and different operation requirements; the explosion-proof junction box and the energy accumulator are adopted, when the single-action pneumatic PST system is used, the electrical safety of the system in a dangerous environment can be guaranteed, meanwhile, the pressure of the system can be kept within a relatively stable range, and the stability of the system during use is improved.

A high voltage junction box comprising a housing having a plurality of sides forming a frame, a plurality of high voltage connectors provided at one or more of said sides, and at least one frame-shaped main busbar arranged inside the housing. Each of the at least one frame-shaped main busbar extends along each of said sides. The high voltage junction box further comprising a plurality of electrical conductors arranged to connect the at least one frame-shaped main busbar to the high voltage connectors.

A lighting housing can be structured and configured to include an internal wiring junction box. In some embodiments, components, such as a cover and pan (e.g., base), of the lighting housing are structured to be stackable when the lighting housing is unassembled. In some embodiments, the components of the lighting housing are configured to be assembled using snap fits (e.g., rather than rivets or other fasteners).

A high voltage charge control apparatus for application of NACS may include a charging line extending from a North American Charging Standard (NACS) type inlet, a NACS junction box configured to branch the charging line into a DC charging line and an AC charging line, a high-voltage junction box configured to connect the DC charging line to a high-voltage battery within a vehicle, and an on-board charger configured to connect the AC charging line to the high-voltage battery.

The disclosure discloses a multifunctional waterproof junction box with wires entering from four surfaces, including a main box body and a detachably connected cover body. A connector portion that may be mounted in the waterproof junction box of the disclosure is at least one of a data connector or an electric socket, so more diversified use requirements and mounting environments can be satisfied. A side of the main box body away from the cover body is a mounting surface, the main box body is rotated around a central axis by 90 degrees each time so as to correspond to four mounting positions sequentially, the cover body has the same mounting state at each position, a fixing region of the main box body is also the same, and a user may arbitrarily adjust a mounting direction of the main box body to meet different direction setting requirements of a terminal.

A connection structure of a plurality relays and busbars, wherein the relays include: a first relay for switching a first circuit as a predetermined electrical circuit between a powered and a non-powered states; and a second relay for switching a second circuit, which is different from the first circuit, as a predetermined electrical circuit between a powered and a non-powered states, the first and second circuits being configured to be supplied with power in the powered state and to be supplied with no power in the non-powered state. The busbars include: a first busbar connected to the first relay to form the first circuit; and a second busbar connected to the second relay to form the second circuit. The first busbar and the second busbar are connected for releasing heat, wherein the second busbar is in the non-powered state in the powered state of the first circuit.

An electric motorcycle includes an electric motor configured to provide propulsion of the motorcycle, and a battery pack with a battery case. The electric motor and the battery case are coupled together to define an overlapping area. In the overlapping area, the battery case includes an integrated junction box for one or more electrical connections to the electric motor.

The utility model discloses a wiring tool for a junction box, and the tool comprises a pedestal which is provided with a first space for the placement of the junction box; the clamping block is arranged in the first space, the clamping block is provided with a second space for a cable of the junction box to penetrate through, a first through hole penetrating through the base in the vertical direction is formed in the position, corresponding to the base in the vertical direction of the second space, of the base, and the first through hole is communicated with the second space.

The embodiment of the invention discloses a photovoltaic junction box and a photovoltaic panel control system, a positive electrode interface and a negative electrode interface are arranged in the photovoltaic junction box and are respectively connected with the positive electrode and the negative electrode of a photovoltaic panel, the positive electrode and the negative electrode of the photovoltaic panel are both connected with a power line, and a bypass circuit is arranged between the positive electrode interface and the negative electrode interface. And arranging a power line communication circuit between the positive interface and the negative interface to realize data communication according to a power line. Therefore, the communication of the photovoltaic panel is realized under the condition of not arranging an additional device, and the cost of the photovoltaic panel control system is reduced.

The utility model relates to a photovoltaic bypass protection and countercurrent prevention module, a junction box assembly and a junction box. The device mainly comprises N groups of first electronic devices with unilateral conductivity, the N groups of first electronic devices are configured to be arranged in a junction box assembly and connected in series, and the first electronic devices are configured to be second electronic devices with an anti-reflux function and used for being connected in series and parallel with a solar cell sub-series. The second electronic device is configured to be arranged in the junction box assembly and connected with the N groups of first electronic devices in series, a first electrode of the second electronic device is configured to be electrically connected with a second electrode of a series circuit formed by the N groups of first electronic devices, and a second electrode of the second electronic device is configured to be electrically connected with an external cable. The junction box assembly is beneficial to preventing the photovoltaic bypass protection and anti-reflux module from being influenced by reverse current, and is convenient to quickly assemble and use.

The invention belongs to the technical field of photovoltaic power station power generation, and particularly relates to a single-crystal assembly photovoltaic power station power generation data monitoring and analyzing system, which comprises a multi-modal sensing acquisition and real-time analysis layer, a single-crystal assembly power generation data analysis layer, a single-crystal assembly power generation data analysis layer and a single-crystal assembly power generation data analysis layer, and constructing a component-level multi-physics field coupling model, wherein the model fusion method comprises the following steps: adaptively adjusting the monitoring acquisition frequency of a corresponding region, focusing key data acquisition in a fault incubation period, and keeping the conventional monitoring intensity when the component state is stable. And meanwhile, the cooperative control module for carbon flow monitoring, analysis and energizing generates a precise control instruction based on a dynamic optimization result, so that the problems of one-way open loop and collection strategy stiffness of traditional system monitoring and analysis are solved, the pertinence of fault diagnosis is improved, unnecessary monitoring resource consumption is reduced, and the system monitoring energy efficiency is improved by more than or equal to 40%.

The invention belongs to the technical field of resource circulation, and mainly relates to a method for recovering polyethylene glycol terephthalate from a retired photovoltaic module backboard. The method comprises the following steps: after crushing a laminated part without an aluminum frame and a junction box, mixing the crushed laminated part with an alkaline alcohol solution to obtain a fluorine-containing backboard; and mixing the fluorine-containing back plate with a binary eutectic solvent, and carrying out heating reaction to obtain the fluorine film and PET (Polyethylene Terephthalate). According to the method, the eutectic solvent is selected as a selective separation solvent, and the binder impurities in the backboard composite material are selectively dissociated through temperature regulation and control, so that complete stripping and high-purity recovery of the PET layer are realized. The separation method is safe, efficient, simple to operate and environment-friendly, and provides a safe and sustainable technical route for recycling the PET material in the retired photovoltaic module.

The invention discloses a pull-out type optical cable cross-connecting box which comprises a box body, an inner cavity of the box body is fixedly connected with a plurality of guide rail frames in a linear array mode, sliding rails are connected into the guide rail frames in a sliding mode, and an optical fiber fusion distribution disc is fixedly connected between every two sliding rails. The invention relates to the technical field of optical cable cross-connecting boxes. According to the pull-out type optical cable cross-connecting box, the pull-out function of an optical fiber fusion and distribution disc is achieved through cooperation of a guide rail frame and a sliding rail, positioning can be quickly relieved by pushing a push block in cooperation with a limiting mechanism, automatic locking can be achieved by loosening the push block after pull-out, and the optical cable cross-connecting box can be fixed to different pull-out positions according to maintenance requirements; a complete ventilation loop is formed through the cooling fan, the air inlet frame and the air outlet frame, air circulation in the box body is accelerated, the cooling effect is remarkable, the filter plate can filter air entering the box body, dust and impurities are prevented from invading, dust on the surface of the filter plate can be automatically cleaned through the cleaning brush made of PBT fiber materials, the filter plate is soft, the plate is not damaged, and dust is not prone to being left.

In an embodiment a charging control method includes determining, by a charging controller, whether an electric coupling of a vehicle unit of a vehicle to a ground unit of a ground equipment is completed, checking, by the charging controller, whether DC charging or AC charging is performed based on a completion of the electric coupling and controlling, by the charging controller, an on-board charger for the AC charging or a junction box for the DC charging to provide a V2L discharge functionality based on a check.

The utility model discloses a compressor connecting cylinder extending cable plate-penetrating sealing structure, which comprises a connecting cylinder, a wire holder is arranged above the connecting cylinder, a sealing gasket is arranged between the wire holder and the upper wall of the connecting cylinder, a slender rod structure is integrally formed at the lower end of the wire holder, an external thread is arranged on the outer wall of the slender rod structure, and a sealing gasket is arranged on the outer wall of the slender rod structure. The utility model relates to the technical field of compressors, a multi-sealing structure formed by the wire holder, the sealing gasket, the anti-explosion sealing joint and the like is adopted, the leakage risk is effectively reduced, and the sealing gasket seals process gas which is leaked from the outside of filler into the connecting cylinder in the connecting cylinder, so that the process gas is prevented from being leaked into the atmosphere; and the explosion-proof sealing joint seals the process gas leaked from the interior of the wire holder, so that the process gas is prevented from being leaked into the explosion-proof flexible pipe, the junction box and the atmosphere, the sealing performance of the whole system is improved, and the operation safety of the compressor is guaranteed.

A novel motor end cover comprises a rotary transformer stator mounting hole arranged in the center of the top surface of the outer side of the end cover and a bearing mounting hole arranged in the center of the inner side of the end cover, the center of the rotary transformer stator mounting hole and the center of the bearing mounting hole are located on the same axis, and a junction box cover mounting seat is arranged on the outer side of the circumference of the rotary transformer stator mounting hole. A three-phase connector is arranged on the side wall of the upper portion of the junction box cover installation base, a suspension installation base is arranged on the outer side of the lower portion of the junction box cover installation base, the junction box cover installation base is connected with the bottom of the suspension installation base through an end cover wall, and connecting ribs are arranged between the end cover wall and the lower junction box cover installation base wall and between the end cover wall and the rotary transformer stator installation hole wall. The connecting ribs protrude towards the top end of the end cover, and a weight reduction groove with an h-shaped section is formed among the connecting ribs, the wall of the end cover, the wall of the lower junction box cover mounting seat and the wall of the rotary transformer stator mounting hole.