42results about How to "Increase cooling space" patented technology

The invention provides a multifunctional electric energy metering box, and relates to the technical field of electric energy metering boxes, the multifunctional electric energy metering box comprises an electric energy metering box, communication grooves are formed in two side walls of the electric energy metering box, first inner grooves are formed in the two communication grooves, and first heat dissipation openings and second heat dissipation openings are formed in two side walls of the electric energy metering box; the two second heat dissipation openings are located below the two first heat dissipation openings, an electric energy metering box door is hinged to the electric energy metering box, an observation window and a control panel are arranged on the electric energy metering box door, a containing groove is formed in the side wall of the electric energy metering box, a protective cover is fixedly installed on the side wall of the electric energy metering box, and the protective cover is located over the containing groove. The top of the inner wall of the electric energy metering box is fixedly provided with a fixed box body. The self-adaptive mechanism of the equipment reduces faults caused by overheating or moisture, reduces the maintenance cost, protects electrical elements, ensures the stable operation of the whole system, and improves the reliability and stability of the equipment.

The invention relates to the technical field of air conditioners, in particular to an industrial environment-friendly air conditioner cold circulation device which comprises a shell, two mounting frames symmetrically fixed in the shell, a condensation pipe mounted on the mounting frames and a plurality of fins arranged on the condensation pipe, the mounting frames are L-shaped, and a mounting space is formed between the condensation pipe and the inner wall of the shell; a filter device is slidably arranged in the mounting space, the filter device comprises a filter frame, a plurality of cleaning assemblies are fixedly mounted on the mounting frame, each cleaning assembly is located between every two adjacent fins, and the cleaning assemblies are used for cleaning the fins; the cleaning assembly comprises two mounting strips, a plurality of mounting pieces and a plurality of cleaning pieces, the upper ends and the lower ends of the two mounting strips are fixedly connected to the upper side and the lower side of the filtering frame respectively, and the mounting pieces are fixedly connected to the mounting strips. According to the heat exchanger, it is guaranteed that dust on the fins is cleaned, meanwhile, energy consumption is reduced, and the environment-friendly and energy-saving effects are achieved.

The present application relates to the field of shaded-pole motors, and discloses a shaded-pole motor with low wind noise, including a stator core, a rotor located in the stator core, a support member fixed on the stator core and used to support the rotor, and a main winding located on the stator core, a noise reduction cover arranged on the rotor is arranged between the support member and the stator core; the noise reduction cover comprises: a cover, located between the support member and the rotor, an axial hole is opened on the cover and sleeved on the rotating shaft rod of the rotor, the cover is fixed on the support member, and densely distributed sound-absorbing holes are opened on the cover; a sound insulation cotton ring is bonded to the axial hole of the cover; a contact ring is formed on the edge of the cover; a noise reduction cotton ring is bonded to the contact ring and used to conflict with the stator core. The present application solves the technical problem in the prior art that due to the simple structure of the shaded-pole motor, no measures have been taken to reduce the noise of the shaded-pole motor, and realizes that the noise reduction cover is covered on the shaft seat of the shaded-pole motor rotor, which can reduce the noise generated by wind noise and friction of the rotor.

The present invention discloses a solar photovoltaic panel cable connection mechanism and a solar photovoltaic panel, which relates to the technical field of cable connectors, and solves the problem that multiple plug-in and pull-out operations easily lead to the risk of the inside of the connector becoming loose or even falling off, which in turn easily causes leakage and affects safety. The solar photovoltaic panel cable connection mechanism includes an inverter, an external assembly component, and a plug-in connection structure. The output end and the input end of the inverter are electrically connected with the plug-in connection structure. The plug-in connection structure is provided with multiple groups, and is respectively connected to the solar photovoltaic panel and the power module. The outer side of the plug-in connection structure is provided with an external assembly component, and the external assembly component is fixed on the left and right sides of the inverter. In the present invention, on the one hand, the stability of the conductive connection is guaranteed, and the problem of loosening or even falling off will not occur during multiple plug-ins and pull-outs. On the other hand, there is enough space for heat dissipation operations, and the safety is high in the conductive connection state.

The utility model belongs to the technical field of kitchen appliances, and discloses a cooking utensil which comprises an outer cover, a heat preservation cover arranged in the outer cover, a circuit board and a cooling fan, the circuit board and the cooling fan are arranged between the outer cover and the heat preservation cover, an air inlet corresponding to the cooling fan is formed in the side portion of the outer cover, the heat preservation cover is provided with an air outlet, and the circuit board is provided with a heat dissipation piece. An air guide part is further arranged between the outer cover and the heat preservation cover, and the air guide part is provided with a first cooling air duct communicating the cooling fan and the heat dissipation part and a second cooling air duct communicating the cooling fan and the air outlet. Therefore, the number of required cooling fans is reduced, the production cost of the cooking utensil is reduced, meanwhile, due to the fact that the number of the cooling fans is reduced, the energy consumption of the cooking utensil is reduced, the use cost of a user is reduced, noise generated when the cooking utensil works is reduced, and the use experience of the user is improved.

The thermal response heat dissipation device comprises a pipeline, a driving assembly, a transmission assembly, a conduction piece, a plurality of elastic pieces and a plurality of heat dissipation elastic pieces, the pipeline is provided with a flow channel and an opening communicating with the flow channel, and an outlet of the compressor communicates with an air storage tank through the flow channel. The driving assembly is installed in the flow channel and connected with the transmission assembly, the transmission assembly is connected with the conduction piece, the multiple heat dissipation elastic pieces are connected to the conduction piece, the two ends of each elastic piece are elastically connected between the adjacent heat dissipation elastic pieces respectively, gas in the flow channel flows, and the driving assembly can drive the transmission assembly to drive the conduction piece to move. The conduction piece drives the heat dissipation elastic pieces to move in the direction away from the opening, under the action of the elastic force of the elastic pieces, the heat dissipation elastic pieces can be away from one another, the heat dissipation space of the heat dissipation elastic pieces can be increased while the heat dissipation elastic pieces dissipate heat, heat dissipation is accelerated, and the heat dissipation efficiency is improved.

The present invention discloses an automatic flip molding injection mold for automobile exhaust vent fan blades, and relates to the technical field of injection molds. It includes a mold tray and a cooling bin, wherein the mold tray is provided with a tray slot inside, and a mold body is provided on the hollow inner side of the tray slot, and a clamping mechanism is provided on the annular inner side wall of the mold tray, and the cooling bin is provided on the outer side of the mold tray, and a push rod base is fixed on the outer side wall of the cooling bin, and a driving mechanism is installed on the top of the push rod base, and a jack mechanism is provided on the side end face of the mold tray, and a bracket body is fixed on the rear end of the injection port. The utility model adopts a disc shape as a whole, and multiple groups of tray slots are provided at equal intervals in a ring shape on the surface of the disc-shaped mold tray, so that multiple groups of different or identical mold bodies can be placed on the inner side of the tray slot, so that materials can be fed into the interior of multiple groups of mold bodies one by one by utilizing the gap between the injection ports, and better injection efficiency is achieved.

The utility model belongs to the technical field of kitchen appliances, and discloses a cooking utensil which comprises a pot body, the pot body comprises an inner container and a heat preservation cover surrounding the inner container, the heat preservation cover is provided with a winding area and an avoiding area, the winding area and the avoiding area are arranged in a staggered mode in the circumferential direction or the vertical direction of the heat preservation cover, and the avoiding area is provided with an air outlet. The pot body is provided with a cooling fan corresponding to the air outlet, so that airflow of the cooling fan enters the heat preservation cover through the air outlet to be in contact with the inner container. The side coil is arranged in the winding area, the cooling fan corresponds to the air outlet located in the avoiding area, and the winding area and the avoiding area are arranged in the circumferential direction or the vertical direction of the heat preservation cover in a staggered mode so that the side coil and the cooling fan can avoid each other, and then the structural layout of the side of the inner container can be more reasonable; and the condition that the side structure of the inner container is crowded is avoided, so that the assembly difficulty of the cooking utensil is reduced, and the production efficiency of the cooking utensil is improved.

The utility model relates to the technical field of batteries, and provides a battery and electronic equipment, the battery is provided with a circuit board, an insulating part and a battery cell, the battery cell is provided with two tabs, the two tabs are arranged at intervals in the width direction of the tabs, the battery cell and the circuit board are arranged at intervals in the length direction of the tabs, and the insulating part is located between the circuit board and the battery cell. The orthographic projection of the circuit board on the plane where the insulating part is located is covered by the insulating part, and at least part of the orthographic projection of the tab on the plane where the insulating part is located is covered by the insulating part; the circuit board is provided with tab connecting parts, the tab connecting parts and the tabs are arranged in a one-to-one correspondence mode, connecting holes penetrating through the insulating part are formed in the insulating part, and the tabs penetrate through the connecting holes and are electrically connected with the circuit board through the tab connecting parts. Through the structural arrangement, the heat dissipation effect and the insulation performance of the battery are improved.

The invention discloses a damping device and a pile hammer, and belongs to the technical field of vibration pile sinking and pulling equipment. The vibration reduction device comprises a vibration reduction support, a screw rod is arranged at the top end of the vibration reduction support, a spring vibration reduction assembly is arranged on the screw rod, and the spring vibration reduction assembly is hinged to a device where a vibration source is located through a crank. A plurality of sets of rubber damping blocks are arranged on the side edge of the damping support, and the two end faces of the rubber damping blocks are connected with the damping support and a device where a vibration source is located respectively. Through the design method of load grading vibration reduction, the vibration reduction work of a low-load rubber block and the combined vibration reduction form of a high-load spring and rubber, the bearing capacity of the vibration reduction device is greatly improved by increasing the vibration reduction of the spring; and the active overturning function of the pile hammer is met, and the vibration reduction requirement of the pile hammer for work of different static pressure loads and pulling loads under different geological conditions is met.

The utility model relates to the technical field of hubs, in particular to a conveniently-mounted brake pad type hub which comprises a hub body, a main spoke seat and an auxiliary spoke seat, the main spoke seat and the auxiliary spoke seat are arranged at the two ends of the hub body, a brake seat is arranged on one side of the hub body, mounting seats are arranged on the brake seat at equal intervals in the circumferential direction, and the end faces of the sides, close to the auxiliary spoke seat, of the mounting seats are obliquely arranged in the direction gradually close to the center of the auxiliary spoke seat. The main spoke seat and the auxiliary spoke seat are both provided with spoke mounting holes, the main spoke seat and the auxiliary spoke seat at the two ends of the drum body can facilitate installation of spokes, the brake seat is arranged to facilitate installation of the brake pad, the connection stability between the brake pad and the brake seat is improved, the mounting seat is arranged to facilitate installation of the brake pad, and the brake pad is convenient to mount. A pre-installation position is provided for the brake pad, connection convenience and connection stability are improved, the end face of the side, close to the auxiliary spoke base, of the installation base is obliquely arranged in the direction gradually close to the center of the auxiliary spoke base, an operation space can be provided for bolt fastening in the installation base, and design is more reasonable.

According to the carbon brush cover brush box, a part of space is reserved at a part, close to a commutator, of a carbon brush cover brush box assembly, so that abnormal wear caused by deformation of the interior of the brush box and a carbon brush is avoided, a heat dissipation space is larger, heat dissipation is facilitated, and the carbon brush cover brush box is not easily stuffed.

The utility model discloses a food heat preservation device convenient to collect chippings, and relates to the technical field of food heat preservation, the food heat preservation device comprises a sliding plate, a sliding block is arranged in the sliding plate in a sliding mode, the outer portion of the sliding block is fixedly connected with a scraping plate, and the scraping plate is used for scraping and collecting chippings falling from food. A dragging handle is fixedly connected to the side, away from the scraping plate, of the sliding block, a spring is fixedly connected to the side face of the sliding block, and the other end of the spring is fixedly connected to the inner wall of the sliding plate. The food scrap collecting device has the advantages that food scraps can be collected in a centralized mode, and the scraps in the food scrap collecting device can affect sanitation and safety of food. By collecting the chippings, the breeding of bacteria and pollutants can be reduced, and the quality and safety of food are ensured. And if the chippings are accumulated in the device for a long time, abrasion and damage of equipment parts can be possibly caused. And the service life of the device can be prolonged by regularly cleaning and collecting chippings.

The invention provides a packaging structure, a packaging method and electronic equipment, and the packaging structure comprises a carrier plate which is provided with a plurality of holes, and the holes penetrate through the carrier plate; a first heat conducting member filling the hole; the bonding pad is located on one side of the carrier plate and connected with the first heat conduction piece; the second heat conduction pieces are located on the side, away from the bonding pad, of the carrier plate, the second heat conduction pieces are connected with the first heat conduction pieces, the second heat conduction pieces are provided with heat conduction structures at intervals, the gaps between the adjacent second heat conduction pieces are at least partially filled with the heat conduction structures, and the specific surface area of the heat conduction structures is larger than that of the second heat conduction pieces. According to the technical scheme provided by the invention, the plurality of holes penetrating through the carrier plate are arranged, and the first heat conduction pieces are arranged in the holes and are connected with the bonding pads; and a plurality of spaced second heat conduction pieces are arranged on one side, deviating from the bonding pad, of the carrier plate, and the gaps are filled with heat conduction structures, so that the heat dissipation space is increased, the heat resistance is reduced, the heat dissipation efficiency is further improved, and the reliability of the semiconductor device is improved.

The utility model relates to the technical field of inverter installation, and discloses an inverter installation structure which comprises an inverter, the inverter is provided with a hanging assembly, the hanging assembly comprises a connecting plate arranged on the inverter, the connecting plate is provided with an upper hanging piece, the lower side of the upper hanging piece is provided with a supporting assembly, and the supporting assembly is arranged on the lower side of the upper hanging piece. The supporting assembly comprises a mounting plate, a lower supporting piece is arranged on the side, close to the upper hanging piece, of the mounting plate, the upper hanging piece is clamped on the lower supporting piece, and a locking insertion rod is arranged at the overlapping position of the lower supporting piece and the upper hanging piece. According to the inverter mounting structure, through cooperative use of the mounting and hanging assembly, the supporting assembly and the locking insertion rod, rapid mounting and convenient dismounting are realized, the distance between the inverter and the mounting surface is increased, ventilation and heat dissipation of the back surface are ensured, and the inverter mounting structure can be directly hung on a bracket when being mounted on an outdoor photovoltaic bracket and is convenient to mount and dismount. The LED lamp has the advantages of convenience in disassembly and assembly, increased radiating space, high applicability and the like.

The application relates to the field of batteries, and particularly discloses a ventilation partition plate which is configured as an even number of sub-air ducts for guiding cooling airflow to flow; the sub-air ducts at least comprise a first configuration surface, a second configuration surface and a third configuration surface; the second configuration surface and the third configuration surface are respectively adjacent to the first configuration surface; at least one group of adjacent sub-air ducts is provided with a mixed-air opening; the ventilation partition plate has improved heat dissipation efficiency through the curved surface capable of generating the Coanda effect.

The invention discloses a rapid heat dissipation double-layer battery pack and a control method thereof.The rapid heat dissipation double-layer battery pack comprises a double-layer protective shell, a plurality of battery cells are evenly distributed on orientation rotating assemblies, and synchronous driving gear assemblies used for driving the orientation rotating assemblies to rotate synchronously are arranged among the orientation rotating assemblies; the plurality of battery cells on the orientation rotating assembly and the plurality of battery cells on the adjacent orientation rotating assembly are arranged in a staggered and meshed manner in the rotating process, so that compact layout is realized; the inner wall of the protective shell is provided with an air-cooling heat dissipation assembly for blowing and heating the plurality of battery cells positioned on the outer side; the problems that heat dissipation of inner and outer side battery cores of an existing double-layer battery pack is unbalanced, compact layout contradicts with heat dissipation efficiency, heat dissipation response lags behind in a high-temperature scene, and transmission and heat dissipation channels are prone to being interrupted after layering separation are solved, self-adaptive balanced heat dissipation is achieved, the working stability and safety of the battery pack are improved, and the service life of the battery pack is prolonged.

The invention discloses a process for graded utilization of high-water-content coal after drying and upgrading. High-water-content coal to be upgraded is dewatered and upgraded by adopting a steam drying and dewatering technology, and is further upgraded and graded through vibration grading drying, and an online detection system is adopted for real-time regulation and control in the process. Due to different dehydration effects of products with different granularities, different products are subjected to differentiation treatment after grading, and quality-improved products with different granularities can be reasonably utilized. According to the invention, the product subjected to steam drying and dewatering is quickly subjected to vibration classification dewatering, the purpose of loosening a material group is achieved in the process, and the contact area of the upgraded coal and air is increased, so that the upgraded coal still having waste heat can continue to perform secondary evaporation on residual moisture through preheating, and the overall dewatering rate of the upgraded coal is improved. According to the invention, the fine fraction product subjected to vibration classification drying is subjected to extrusion compression molding to obtain a briquette product, the unmolded pulverized coal is obtained through secondary screening, and the pulverized coal is continuously and repeatedly extruded, so that the utilization rate of the pulverized coal is improved.

The utility model relates to the technical field of resistor elements, and discloses a small-diameter multi-turn wire-wound potentiometer, which solves the technical problems that the diameter and the volume of the multi-turn wire-wound potentiometer can be obviously reduced by forming a current terminal channel which does not need a traveling spring structure, but the heat dissipation space is reduced, and the heat dissipation of the potentiometer is inconvenient. Comprising a copper sleeve and a winding potentiometer body, a plurality of ventilation openings are formed in the surface of the copper sleeve, protective nets are arranged on the surfaces of the ventilation openings, a plurality of copper sheets are fixedly connected to the inner walls of the protective nets, a connecting ring is fixedly arranged at the top end of the copper sleeve, a supporting ring is fixedly arranged at the bottom end of the copper sleeve, and the winding potentiometer body is arranged in the copper sleeve; according to the utility model, the surface of the shell is provided with the heat dissipation ports, so that the circulation of air inside and outside the shell can be ensured, heat accumulation of the winding potentiometer main body can be prevented, and the copper sleeve and the copper sheet have good heat conduction capability, so that the temperature of the winding potentiometer main body can be reduced, and heat dissipation can be performed on the winding potentiometer main body.

The utility model discloses an intelligent hospital information issuing multifunctional display terminal which comprises a mounting rack and a multifunctional display terminal body, the multifunctional display terminal body is located on the right side of the mounting rack, and the right side of the mounting rack is fixedly connected with two mounting plates. And the left side of the multifunctional display terminal main body is detachably connected with a bearing frame. According to the multifunctional display terminal, rapid positioning and installation of the multifunctional display terminal body can be achieved through the bearing frame, operation steps of personnel are reduced, rotation can be achieved in cooperation with the servo motor on the top, the display screen rotating in an inclined mode can enable people waiting for signs sitting on the side to see information on the screen more easily, readability is improved, and the display screen is more convenient to use. The problem that inconvenience personnel cannot know the progress in time is avoided, in the waiting process of a hospital, a patient, an accompanying person and even a worker can check the number calling information more conveniently without getting up or moving the position, and inconvenience is reduced.

The utility model belongs to the technical field of regulators, and particularly relates to a gear increasing and reducing device for anchor chain production, which comprises a regulator, a heat dissipation cover is arranged outside the regulator, a heat dissipation fan is arranged inside the heat dissipation cover, and a filter screen is further arranged in the heat dissipation cover. The heat dissipation cover comprises an air inlet channel located on one side of the regulator, an exhaust channel located on the other side of the regulator and a rear cover located at the rear end of the regulator, a filter screen frame is arranged outside the filter screen, and the filter screen is installed in the air inlet channel through the filter screen frame; firstly, the heat dissipation covers are evenly distributed outside the regulator, the heat dissipation area and effect are increased while the attractiveness and compactness of the structure are guaranteed, meanwhile, the heat dissipation effect of embedded installation can be guaranteed, secondly, the movable intercepting plate is matched with the dustproof plate, it can be guaranteed that heat dissipation airflow is smooth, and the heat dissipation effect is good. And the interior of the regulator can be separated from the exterior when heat dissipation is not carried out, so that the protection performance is improved.

The invention relates to a heat regeneration device and an ice maker, the heat regeneration device is arranged in the ice maker, the ice maker comprises a compressor, a condenser, a throttling device and an evaporator, and the heat regeneration device comprises a supporting piece, a heat exchanger and a heat exchanger, the pipeline assembly comprises a coil pipe fitting, the coil pipe fitting is arranged in the containing cavity, the coil pipe fitting comprises a first refrigerant pipe and a second refrigerant pipe, the second refrigerant pipe is arranged on the peripheral side of the first refrigerant pipe in a sleeving mode to form the coil pipe fitting, the first refrigerant pipe is spirally wound in the radial direction of the first refrigerant pipe, and the first refrigerant pipe is stacked layer by layer in the height direction of the containing cavity. According to the heat regeneration device, the vertical space is effectively utilized, the heat dissipation space can be increased on the premise that the overall size of the ice maker is not increased, heat dissipation of the condenser is facilitated, and the overall heat dissipation efficiency of the ice maker is guaranteed.

The application discloses an information processing device, which comprises a body, a display screen rotatably connected to the body, the body comprises an upper shell and a lower shell connected below the upper shell, one or more heat dissipation air outlets are formed between the upper shell and the lower shell, a movable shell is installed on the heat dissipation air outlet, a driving unit is arranged in the body, when the display screen is rotated to open, the driving unit drives the movable shell to open to expose the heat dissipation air outlet, when the display screen is rotated to close, the driving unit drives the movable shell to close to close the heat dissipation air outlet. Due to the above technical means, the application improves the heat dissipation structure of the notebook computer, the air outlet which can be opened and closed is arranged on the body, when the notebook computer is opened and used, the air outlet is opened to expand the heat dissipation space, so that the heat generated during the use of the notebook computer can be timely output.

The utility model discloses an independent bidirectional installation high-power PD fast charging wall socket box, which comprises a base, an electronic assembly and a covering assembly, and is characterized in that the base is of a box body structure, and a bearing part and an installation space which are independent from each other are arranged in the base; the volume of the mounting space is larger than that of the bearing part; one side of the mounting space and one side of the bearing part are opened, and the openings of the mounting space and the bearing part are arranged in different directions in the vertical direction; the electronic assembly comprises a circuit board component and a plug-in mounting component, and the circuit board component is arranged in the mounting space; the plug-in mounting part is arranged on the bearing part; the covering assembly detachably covers the base. According to the utility model, a double-space independent bidirectional installation mode is adopted, mutual isolation of a plug-in installation part and a circuit board part is effectively realized, the short circuit condition is reduced, the temperature stability in the box is ensured, the service life of accessories is prolonged, the installation space of the circuit board part is increased by more than 30%, the heat dissipation effect is improved, and the PD fast charging power is improved to more than 65W.

The utility model provides a heat insulation and vibration isolation device for an electric tool, and belongs to the technical field of electric tools. The device comprises a shell and a holding sleeve, the holding sleeve is arranged at one end of the shell, a driving assembly is arranged in the shell, an output shaft connected to the driving assembly is arranged in the holding sleeve, a supporting sleeve is arranged between the holding sleeve and the output shaft, and a plurality of supporting elements extending in the axial direction are arranged between the holding sleeve and the supporting sleeve at intervals. The supporting element is tightly attached to the holding sleeve and the supporting sleeve. The supporting element is an elastic non-metal element, and the supporting element is made of an elastic non-metal material. According to the device, the holding sleeve and the supporting sleeve are separated through the elastic nonmetal element, vibration and temperature of the holding part of the electric tool are reduced, and the effects of vibration reduction and heat insulation are achieved.

The utility model relates to a PCBA board vertical installation structure, and belongs to the technical field of PCBA board installation structures, and the PCBA board vertical installation structure comprises a housing which is internally provided with an installation groove, and the installation groove is vertically arranged; the ribs are arranged on the inner side wall of the mounting groove, and the inner sides of all the ribs define a containing space; the PCBA board body is arranged on the inner side wall of the containing space in an attached mode. A guide inclined surface is arranged at the upper end of the rib, and the guide inclined surface is inclined downwards from one end far away from the accommodating space to one end close to the accommodating space. According to the invention, the installation structure of the PCBA board can be optimized, the internal layout of the product shell is effectively improved, and the lightweight development of the product is facilitated; besides, the PCBA board body is separated from the inner wall and the bottom wall of the mounting groove by a certain distance through the ribs and the bottom ribs, heat accumulation generated when the PCBA board body works is prevented, and it is guaranteed that the mounting structure has a good heat dissipation effect.

The present invention relates to the technical field of switch box heat dissipation, and specifically provides a withdrawable switch cabinet with rapid heat dissipation, including a cabinet, wherein a plurality of switch boxes are accommodated, a base frame and a bracket are slidably arranged in the cabinet, and a side frame rotates around the base frame. When a switch box generates more heat, the base frame rises to release the restriction of the side frame to drive the bracket to move upward, thereby driving the switch box to rise, so that the heat dissipation space at the bottom of the switch box is increased. At the same time, an exhaust fan is arranged on the bracket, and the exhaust fan is started, so that the switch box is subjected to dual heat dissipation, one is the heat dissipation of the blowing plate, and the other is the heat dissipation of the exhaust fan. At the same time, the heat dissipation space is increased, so that the switch box with more heat generation can dissipate heat efficiently, and abnormal operation of the switch box is avoided.

The present invention provides a power device, the power device comprising: a first bridge arm structure, comprising a first liner, a second liner and a first chip, the second liner is arranged on the upper surface of the first liner, the drain of the first chip is conductively connected to the upper surface of the first liner, and the source of the first chip is conductively connected to the upper surface of the second liner; a terminal assembly, comprising a first power terminal and a second power terminal, the first power terminal is electrically connected to the upper surface of the first liner, the second power terminal is electrically connected to the upper surface of the second liner, and the first power terminal and the second power terminal are located on the same side of the first liner. The technical solution provided by the present application can solve the problems of poor heat dissipation and low switching speed of power devices in related technologies.

The utility model discloses a protection assembly, front floor assembly and vehicle. The protection assembly, including protection heat dissipation board, protection heat dissipation board includes first board body, second board body and third board body. The first board body includes the first side portion, and the second side portion is spaced apart with the first side portion along the length direction of protection heat dissipation board and is fixedly connected with the first connecting portion of front floor. Along the thickness direction of front floor, the second side portion is set in the upper side of first side portion. The first connecting portion is set between the first side portion and the second side portion. One side of second board body is fixedly connected with the second side portion, so that the first board body and second board body cooperate and form heat dissipation space. The other side of second board body is fixedly connected with third board body, and the second connecting portion of third board body is fixedly connected with front wallboard. The protection assembly can effectively improve the heat dissipation effect of power amplifier, and is favorable to improve the stability of long-time playing of vehicle sound.

The utility model discloses a wall socket box with a high-power PD fast charging function, which comprises a base, an electronic assembly and a covering assembly, and is characterized in that the base is of a rectangular box body structure, a space with a top opening is arranged in the base, and a bearing part and an installation space are arranged in the space; the width of the mounting space is H3, and the width of the bearing part is H4; h3 is greater than H4; the electronic assembly comprises a circuit board component and a plug-in mounting component, and the circuit board component is electrically connected with the plug-in mounting component and arranged in the mounting space; the plug-in mounting part is electrically connected with the circuit board part and is arranged on the bearing part; the covering assembly detachably covers the base. According to the utility model, the space size of the base is increased, and the width of the bearing part in the space is set to be smaller than the width of the installation space, so that the installation space is increased by more than 30%, the heat dissipation and installation space of a circuit board and electronic components thereof are effectively increased, the PD fast charging power is increased to more than 65W, and fast wiring, wire clamping and fast covering assembly are realized.