Convex tube type heating core body of air heating PTC electric heater of new energy automobile

Abstract

The invention discloses a convex tube type heating core body of an air heating PTC electric heater of a new energy automobile, and relates to the technical field of heating cores, and the convex tube type heating core body comprises a composite device. According to the convex tube type heating core body of the air-heating PTC electric heater of the new energy automobile, through the design of a composite device, the heating core body is arranged in the bearing mechanism, the heating core body is fixed through the bearing mechanism, follow-up operation is facilitated, shaking in the operation process is avoided, the follow-up operation is prevented from being affected, the bearing mechanism drives a square sliding block to slide on the inner side of a sliding groove, and the heating core body is fixed. The grating covers are arranged on the two sides of the composite shell, the effect of preventing impurities from entering is achieved through the grating covers, dust entering and adsorbed to components is reduced, excessive accumulation of the impurities after long-time operation is prevented, and the situation that the operation effect of the heating core is affected is avoided; and meanwhile, airflow penetrates through the heating core body from the grating covers, so that efficient heating and heat transfer are achieved, and the operation requirements of parts are met.

Description

Technical Field

[0001] The present invention relates to the technical field of heating cores, and in particular to a convex tube heating core of an air-heating PTC electric heater for new energy vehicles. Background Art

[0002] As a pillar industry strongly supported by the government, new energy vehicles are experiencing rapid growth. With an increasing number of OEMs and parts manufacturers participating, competition among brands is becoming increasingly fierce. Meeting user needs, ensuring stable performance, energy conservation, and cost reduction have always been key priorities for new energy vehicles. Since the range and functionality of new energy vehicles are closely tied to battery power, improving component performance while reducing component weight while ensuring acceptable performance can help extend the range of new energy vehicles. Reducing component costs further enhances the competitiveness of new energy vehicles.

[0003] At present, the heating core structure of the air-heating PTC electric heater in the new energy vehicle industry is that the heat dissipation strip is flush with the aluminum tube. The actual heating area of ​​the PTC heating sheet inside the heating core is relatively small, and the area of ​​heat transferred to the surface of the aluminum tube is actually smaller than the surface area of ​​the concave aluminum tube and the heat dissipation strip. Moreover, the surface of the aluminum tube is concave in shape. When the wind blows across the surface, part of it will be blocked and unable to pass through smoothly, which will greatly increase the overall wind resistance and block part of the heat from passing through, which is not conducive to the transfer of heat and slightly reduces the thermal efficiency. The present invention optimizes the design of the heating core of the air-heating PTC electric heater, cancels the original concave tube structure, simulates the path of ventilation, and designs a convex tube aluminum tube, which greatly reduces the overall wind resistance and improves the heat transfer efficiency. At the same time, on this basis, for the heating core of the air-heating PTC electric heater of the same size, this structure can reduce the height of the heat dissipation strips on both sides of the convex aluminum tube, which helps to reduce the weight of the overall product and reduce the cost of components.

[0004] The existing heating core is prone to impurities adhering to the surface of the component after a long period of operation, thereby affecting its own operating efficiency. Therefore, a new design has been made to address this situation. Summary of the Invention

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a convex tube heating core of a PTC electric heater for air heating of new energy vehicles, comprising a composite device, a cleaning device is plugged into the top of the composite device, and a processing device is fixedly connected to one side of the outer side of the composite device; The composite device includes a composite shell, the top of the composite shell is fixedly connected to an external block, the outer side of the external block is plugged into the outer side of the cleaning device, a slide groove is provided at the bottom of the inner wall of the composite shell, the inner wall of the slide groove is slidably connected to a square slider, and the receiving mechanism drives the square slider to slide inside the slide groove, so as to facilitate disassembly and replacement and reduce the difficulty of operation. One side of the outer side of the square slider is fixedly connected to the receiving mechanism, and the heating core is arranged inside the receiving mechanism. The heating core is fixed by the receiving mechanism to facilitate subsequent operation, avoid shaking during operation, and prevent subsequent operation from being affected. The inner side of the receiving mechanism is provided with a heating core to avoid affecting the operation effect of the heating core. At the same time, the air flow passes through the heating core between the grille covers to achieve efficient heating and heat transfer, thereby meeting the operation requirements of the components. The middle of the two sides of the outer side of the composite shell is fixedly connected with a grille cover. The grille cover is provided on both sides of the composite shell. The grille cover plays a role in blocking the entry of impurities, reducing the entry of dust and adsorption on the components, and preventing excessive accumulation of impurities after long-term operation. The bottom of one side of the outer side of the composite shell is fixedly connected to the outer side of the processing device.

[0006] Preferably, a guide block is fixedly connected to one side of the exterior of the receiving mechanism, and a guide housing is fixedly connected to the exterior of the composite housing near the guide block, and the inner side of the guide housing is plugged into the outer side of the guide block. When the receiving mechanism drives the heating core to move, the receiving mechanism drives the guide block to plug into the guide housing, thereby achieving the function of docking components, improving the accuracy of component docking, and improving component installation efficiency.

[0007] Preferably, the receiving mechanism includes a receiving frame, one side of the inner wall of the receiving frame is fixedly connected to the receiving shell, and the side of the inner wall of the receiving frame away from the receiving shell is fixedly connected to the extrusion mechanism, one side of the heating core is plugged into the groove of the receiving shell, and the other side of the heating core is squeezed by the extrusion mechanism during the process of squeezing the extrusion mechanism, so as to achieve the function of fixing the component, maintain the stability of the component operation, and avoid affecting the component operation efficiency. The side of the outside of the receiving frame close to the extrusion mechanism is fixedly connected to the cover plate, and the side of the outside of the cover plate away from the extrusion mechanism is fixedly connected to the handle, and the cover plate is driven by the handle to move the receiving frame out of the composite shell, so as to facilitate the disassembly, cleaning and replacement of the component, and the heating core is easy to replace after aging, thereby improving operating efficiency.

[0008] Preferably, the extrusion mechanism includes an extrusion plate, and a telescopic rod is fixedly connected to one side of the outside of the extrusion plate. When the extrusion plate squeezes the heating core, the extrusion plate is subjected to the reaction of the heating core, causing the telescopic rod to squeeze and contract the spring bar, thereby achieving a shock-absorbing and buffering effect, reducing the extrusion pressure on the component, and preventing the component from being damaged due to excessive extrusion force, thereby playing a certain protective role for the component. The outer side of the telescopic rod is sleeved with a spring bar, and the amplitude generated by the airflow passing through the heating core is reduced by the spring structure, thereby improving stability during operation, and the spring bar drives the telescopic rod to support the extrusion plate, thereby playing a supporting role for the component. The side of the telescopic rod away from the extrusion plate is fixedly connected to the outer side of the cover plate.

[0009] Preferably, a silicone block is fixedly connected to the side of the outside of the extrusion plate away from the telescopic rod. The silicone block is made of silicone material and has good wear resistance and buffering effect. When the silicone block contacts the heating core, the wear between the components is reduced, thereby extending the service life of the components. A block surface incision is opened on the side of the outside of the silicone block away from the extrusion plate. By opening the block surface incision and increasing the surface texture of the component by opening a groove, the friction performance of the component is improved, and the fixing effect is further improved. The groove has a certain anti-slip effect, which avoids sliding during the clamping process of the component. Secondly, the deformation performance of the component is increased by opening the groove, which further improves the buffering effect of the component and slows down the wear between the components.

[0010] Preferably, the cleaning device includes a cleaning frame, the outer side of the cleaning frame is plug-connected to the outer side of the external block, and the inner side of the cleaning frame is plug-connected to the first fan. When the heating core has been operating for a long time, a lot of impurities are likely to adhere to the surface of the heating core, which may easily affect the operating efficiency of the heating core itself and reduce the operating efficiency. Wind is generated by the first fan, and the wind flows to the inside of the composite shell, so that the wind impacts the surface of the heating core, thereby achieving the effect of flushing dust on the surface of the component, thereby peeling off dust on the surface of the component, reducing dust on the surface of the component, avoiding excessive dust accumulation affecting the operating effect of the component, and reducing dust accumulation and foreign matter blockage. The bottom of the cleaning frame is fixedly connected to an air supply pipe, and a hole is opened at the bottom of the air supply pipe. Air is supplied through the holes on the surface of the air supply pipe, while reducing the entry of external impurities, keeping the interior of the equipment clean, and extending the service life of the components. A scraping mechanism is fixedly connected to the side of the inner wall of the air supply pipe close to the hole.

[0011] The outer side of the scraper bracket is fixedly connected to the outer side of the scraper bracket, and the outer side of the scraper bracket is fixedly connected to the outer side of the scraper bracket. The scraper bracket is driven by wind to impact the outer side of the scraper bracket, so that the scraper bracket drives the cylindrical scraper to rub the inner wall of the pipe, thereby achieving the effect of cleaning the inner wall of the pipe, reducing impurities adhering to the inner wall of the pipe, avoiding impurity accumulation affecting the gas flow effect, and cleaning the cleaned dust inside the pipe. Regular cleaning is performed by disassembly to avoid excessive dust precipitation and affecting the operation efficiency. The outer side of the scraper bracket is fixedly connected to the cylindrical scraper on the side away from the rotating cylinder. The cylindrical scraper is made of silicone material to reduce surface wear of the component, thereby extending the service life of the component. At the same time, it reduces wear on the pipe during the cleaning of the pipe and avoids damage to the pipe after long-term operation. The outer side of the rotating cylinder is fixedly connected to the anti-blocking mechanism on the side away from the scraper bracket.

[0012] Preferably, the anti-blocking mechanism includes an anti-blocking bracket, and the anti-blocking bracket is fixedly connected to the anti-blocking frame on the side of the outside away from the rotating cylinder. The blade drives the component to rotate, so that the anti-blocking frame drives the friction column to rub the side of the gas pipeline close to the hole, thereby achieving the effect of friction impurities, avoiding impurities from settling and agglomerating, and reducing the difficulty of subsequent cleaning. The anti-blocking frame has a support shaft on one side of the outside, and the friction column is rotatably connected to the outside of the support shaft. During the friction rotation between the friction column and the inner wall of the pipeline, the colloid block contacts the hole, thereby achieving the effect of cleaning the groove, preventing the groove from being blocked, and avoiding affecting the gas flow effect, thereby maintaining the normal operation of the equipment. The outer side of the friction column is fixedly connected to the colloid block, which cleans the impurities in the hole so that some impurities fall into the inside of the composite shell, which can be cleaned by the processing device to avoid the operation of the internal components of the equipment.

[0013] Preferably, the processing device includes an inclined suction pipe, and the side of the outside of the inclined suction pipe away from the composite shell is fixedly connected to the processing shell, and the side of the outside of the processing shell is fixedly connected to an annular frame, and the inner side of the annular frame is plugged into the second fan, and the impurities on the surface of the heating core are flushed by the cleaning device, so that the impurities fall to the bottom of the inner wall of the composite shell, and the wind is generated by the second fan, and the impurities inside the equipment are adsorbed into the inside of the processing shell from one side of the inclined suction pipe, and then the impurities are moved to the side of the second fan, so as to facilitate the discharge of dust outward, thereby keeping the inside of the equipment clean, preventing dust accumulation from affecting thermal efficiency and slowing down heating, avoiding uneven heating of components, causing local overheating, and accelerating component aging, and the outside of the processing shell is fixedly connected to an external bracket, and the outside side of the external bracket is fixedly connected to the outside of the composite shell.

[0014] Preferably, a load-bearing shaft is fixedly connected to one side of the inner wall of the processing shell, and a cylindrical shell is rotatably connected to the outer side of the load-bearing shaft. A spiral blade is fixedly connected to the outer side of the cylindrical shell, and an airflow is generated by the second fan, so that the airflow drives the spiral blade to rotate on the outside of the load-bearing shaft, and the inner wall of the processing shell is rubbed by the rotation of the spiral blade, thereby achieving the effect of cleaning impurities, and residual impurities are cleaned by scraping, avoiding impurity residues affecting the flow effect of other impurities, and preventing friction between impurity particles to increase the accumulation effect of impurities, thereby keeping the inside of the equipment clean.

[0015] The present invention provides a convex tube heating core of a PTC electric heater for air heating of new energy vehicles. It has the following beneficial effects: 1. The convex tube heating core of the air-heating PTC electric heater of the new energy vehicle is designed with a composite device. The heating core is arranged inside the receiving mechanism, and the heating core is fixed by the receiving mechanism to facilitate subsequent operations and avoid shaking during operation to prevent affecting subsequent operations. The receiving mechanism drives the square slider to slide on the inside of the slide groove, so as to facilitate disassembly and replacement and reduce the difficulty of operation. Grille covers are set on both sides of the composite shell to block the entry of impurities, reduce the entry of dust and adsorption on the components, prevent excessive accumulation of impurities after long-term operation, and avoid affecting the operation effect of the heating core. At the same time, the air flow passes through the heating core between the grille covers to achieve efficient heating and heat transfer, thereby meeting the operation requirements of the components. In the process of the receiving mechanism driving the heating core to move, the receiving mechanism drives the guide block to plug into the guide shell, so as to achieve the function of docking components, improve the accuracy of component docking, and improve the efficiency of component installation.

[0016] 2. The convex tube heating core of the air-heating PTC electric heater of the new energy vehicle is designed with an extrusion mechanism. When the extrusion plate squeezes the heating core, the extrusion plate is subjected to the reaction of the heating core, causing the telescopic rod to squeeze and contract the spring bar, thereby achieving a shock-absorbing and buffering effect, reducing the extrusion pressure on the components, and preventing damage to the components caused by excessive extrusion force, thereby playing a certain protective role for the components. At the same time, the spring structure reduces the amplitude generated by the airflow passing through the heating core, improving stability during operation, and the spring bar drives the telescopic rod to support the extrusion plate, thereby playing a supporting role for the components. The silicone block is made of silicone material with good wear resistance and buffering effect. When the silicone block contacts the heating core, the wear between the components is reduced, thereby extending the service life of the components. By opening the block surface incision and increasing the surface texture of the component by opening grooves, the friction performance of the component is improved, further improving the fixing effect, and the grooves have a certain anti-slip effect, avoiding sliding during the clamping process of the component. Secondly, the grooves are opened to increase the deformation performance of the component, further improving the buffering effect of the component and reducing the wear between the components.

[0017] 3. The convex tube heating core of the air-heating PTC electric heater of the new energy vehicle is designed with a cleaning device. After the heating core has been in operation for a long time, a lot of impurities are easily attached to the surface of the heating core, which can easily affect the operating efficiency of the heating core itself and reduce the operating efficiency. The wind is generated by the first fan, and the wind flows to the inside of the composite shell, so that the wind impacts the surface of the heating core, thereby washing away the dust on the surface of the component, thereby stripping off the dust on the surface of the component, reducing the dust on the surface of the component, avoiding excessive dust accumulation that affects the operating effect of the component, reducing dust accumulation and foreign matter blockage, and delivering air through the holes on the surface of the gas pipeline, while reducing the entry of external impurities, keeping the inside of the equipment clean, and extending the service life of the components.

[0018] 4. The convex tube heating core of the air-heating PTC electric heater of the new energy vehicle is designed with an anti-blocking mechanism. The blades drive the components to rotate, so that the anti-blocking frame drives the friction column to rub the side of the gas pipeline close to the hole, thereby achieving the effect of friction impurities, avoiding the precipitation and agglomeration of impurities, and reducing the difficulty of subsequent cleaning. At the same time, during the friction rotation between the friction column and the inner wall of the pipeline, the colloid block contacts the hole, thereby achieving the effect of cleaning the groove, preventing the groove from being blocked, and avoiding affecting the gas flow effect, thereby maintaining the normal operation of the equipment, cleaning the impurities in the hole so that some impurities fall into the inside of the composite shell, and can be cleaned by the processing device to avoid the operation of the internal components of the equipment.

[0019] 5. The convex tube heating core of the air-heating PTC electric heater of the new energy vehicle is designed with a processing device. The impurities on the surface of the heating core are flushed by the cleaning device, so that the impurities fall to the bottom of the inner wall of the composite shell. The wind is generated by the second fan, and the impurities inside the equipment are adsorbed into the inside of the processing shell from one side of the inclined suction pipe. The impurities are then moved to the side of the second fan, so as to facilitate the discharge of dust to the outside, thereby keeping the inside of the equipment clean, preventing dust accumulation from affecting thermal efficiency and slowing down heating, avoiding uneven heating of components, causing local overheating, and accelerating component aging. The second fan generates airflow, which drives the spiral blades to rotate on the outside of the load-bearing shaft, and rubs the inner wall of the processing shell through the rotation of the spiral blades, so as to achieve the effect of cleaning impurities, and cleans residual impurities by scraping, avoiding impurity residues affecting the flow effect of other impurities, and preventing friction between impurity particles to increase the accumulation of impurities, so as to keep the inside of the equipment clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the external structure of the convex tube heating core of the air-heating PTC electric heater for new energy vehicles of the present invention; Figure 2 This is a schematic diagram of the structure of the convex tube heating core of the air-heating PTC electric heater of the present invention; Figure 3Schematic diagram of the cross-sectional structure of the composite device of the present invention; Figure 4 This is a structural diagram of the receiving mechanism of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the cleaning device of the present invention; Figure 6 This is a schematic structural diagram of the scraping mechanism of the present invention; Figure 7 This is a schematic structural diagram of the anti-blocking mechanism of the present invention; Figure 8 This is a schematic structural diagram of the processing device of the present invention; Figure 9 Schematic diagram of the cross-sectional structure of the processing device of the present invention In the figure: 1. composite device; 2. cleaning device; 3. processing device; 11. composite shell; 12. external block; 13. receiving mechanism; 14. guide block; 15. guide shell; 16. heating core; 17. square slider; 18. slide; 19. grille cover; 131. receiving frame; 132. receiving shell; 133. cover plate; 134. handle; 135. extrusion mechanism; 1351. extrusion plate; 1352. telescopic rod; 1353. spring bar; 1354. silicone block; 1355. block surface cut; 21. cleaning frame; 22 , first fan; 23, gas pipeline; 24, hole; 25, scraping mechanism; 251, receiving shaft; 252, rotating cylinder; 253, blade; 254, scraping bracket; 255, cylindrical wiper; 256, anti-blocking mechanism; 2561, anti-blocking bracket; 2562, anti-blocking frame; 2563, supporting shaft; 2564, friction column; 2565, colloid block; 31, inclined suction pipe; 32, processing shell; 33, external bracket; 34, annular frame; 35, second fan; 36, load-bearing shaft; 37, cylindrical shell; 38, spiral blade. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The first embodiment, as Figures 1 to 5 As shown, the present invention provides a technical solution: a convex tube heating core of a PTC electric heater for air heating of new energy vehicles, comprising a composite device 1, a cleaning device 2 is plugged and connected to the top of the composite device 1, and a processing device 3 is fixedly connected to one side of the outside of the composite device 1; The composite device 1 includes a composite shell 11, the top of the composite shell 11 is fixedly connected to an external block 12, the outer side of the external block 12 is plugged into the outer side of the cleaning device 2, a slide groove 18 is provided at the bottom of the inner wall of the composite shell 11, and a square slider 17 is slidably connected to the inner wall of the slide groove 18, and a receiving mechanism 13 is fixedly connected to one side of the outside of the square slider 17, and a heating core 16 is provided on the inner side of the receiving mechanism 13. A grille cover 19 is fixedly connected to the middle of both sides of the outside of the composite shell 11, and the bottom of one side of the outside of the composite shell 11 is fixedly connected to the outside of the processing device 3. The heating core 16 is arranged inside the receiving mechanism 13, and the heating core 16 is fixed by the receiving mechanism 13 to facilitate subsequent operations, avoid shaking during operation, and prevent affecting subsequent operations. The receiving mechanism 13 drives the square slider 17 to slide inside the slide groove 18, so as to facilitate disassembly and replacement and reduce the difficulty of operation. Grille covers 19 are set on both sides of the composite shell 11. The grille covers 19 play a role in blocking the entry of impurities, reducing the entry of dust and adsorption on the components, preventing excessive accumulation of impurities after long-term operation, and avoiding affecting the operation effect of the heating core 16. At the same time, the air flow passes through the heating core 16 between the grille covers 19, so as to achieve efficient heat generation and heat transfer, thereby meeting the operation requirements of the components.

[0023] A guide block 14 is fixedly connected to one side of the exterior of the receiving mechanism 13, and a guide housing 15 is fixedly connected to the exterior of the composite housing 11 near the guide block 14. The inner side of the guide housing 15 is plugged into the outer side of the guide block 14. When the receiving mechanism 13 drives the heating core 16 to move, the receiving mechanism 13 drives the guide block 14 to plug into the guide housing 15, thereby achieving the function of docking components, improving the accuracy of component docking, and improving component installation efficiency.

[0024] The receiving mechanism 13 includes a receiving frame 131, one side of the inner wall of the receiving frame 131 is fixedly connected to a receiving shell 132, the side of the inner wall of the receiving frame 131 away from the receiving shell 132 is fixedly connected to a squeezing mechanism 135, the side of the outside of the receiving frame 131 close to the squeezing mechanism 135 is fixedly connected to a cover plate 133, and the side of the outside of the cover plate 133 away from the squeezing mechanism 135 is fixedly connected to a handle 134. One side of the heating core 16 is plugged into the groove of the receiving shell 132. When the other side of the heating core 16 squeezes the squeezing mechanism 135, the squeezing mechanism 135 squeezes the heating core 16, thereby achieving the function of fixing the component, maintaining the stability of the component operation, and avoiding affecting the component operation efficiency. Secondly, the handle 134 drives the cover plate 133 to move the receiving frame 131 out of the composite shell 11, thereby facilitating the disassembly, cleaning and replacement of the component. The heating core 16 is easy to replace after aging, thereby improving operating efficiency.

[0025] The squeezing mechanism 135 includes a squeezing plate 1351, with a telescopic rod 1352 fixedly connected to one side of the squeezing plate 1351. A spring bar 1353 is sleeved on the outer side of the telescopic rod 1352. The outer side of the telescopic rod 1352, away from the squeezing plate 1351, is fixedly connected to the outer side of the cover plate 133. When the squeezing plate 1351 squeezes the heating core 16, the squeezing plate 1351 is subjected to the reaction of the heating core 16, causing the telescopic rod 1352 to squeeze and contract the spring bar 1353. This achieves a shock-absorbing and buffering effect, reduces the squeezing pressure on the components, and prevents damage to the components due to excessive squeezing force, thereby providing a certain degree of protection for the components. At the same time, the spring structure reduces the amplitude of the airflow passing through the heating core 16, improving stability during operation. The spring bar 1353 also drives the telescopic rod 1352 to support the squeezing plate 1351, thereby supporting the components.

[0026] A silicone block 1354 is fixedly connected to the side of the extrusion plate 1351 away from the telescopic rod 1352. A block surface cutout 1355 is provided on the side of the silicone block 1354 away from the extrusion plate 1351. The silicone block 1354 is made of silicone material and has excellent wear resistance and cushioning effect. When the silicone block 1354 contacts the heating core 16, the wear between the components is reduced, thereby extending the service life of the components. The block surface cutout 1355 and the grooves are used to increase the surface texture of the components, thereby improving the friction performance of the components and further improving the fixing effect. The grooves also have a certain anti-slip effect, preventing the components from slipping during the clamping process. Secondly, the grooves are used to increase the deformation performance of the components, further improving the cushioning effect of the components and reducing the wear between the components.

[0027] The second embodiment, based on the first embodiment, see Figures 5 to 7 As shown, the cleaning device 2 includes a cleaning frame 21, the outer side of the cleaning frame 21 is plugged into the outer side of the external block 12, the inner side of the cleaning frame 21 is plugged into a first fan 22, and the bottom of the cleaning frame 21 is fixedly connected to an air supply pipe 23, the bottom of the air supply pipe 23 is provided with a hole 24, and the inner wall of the air supply pipe 23 is fixedly connected to the side near the hole 24. When the heating core 16 has been in operation for a long time, a lot of impurities are easily attached to the surface of the heating core 16, which can easily affect the operating efficiency of the heating core 16 itself and reduce the operating efficiency. The first fan 22 generates wind force, which flows into the interior of the composite shell 11, so that the wind force impacts the surface of the heating core 16, thereby achieving the effect of flushing dust on the surface of the component, thereby stripping the dust on the surface of the component, reducing the dust on the surface of the component, preventing excessive dust accumulation from affecting the operating effect of the component, and reducing dust accumulation and foreign matter blockage. Air is supplied through the holes 24 on the surface of the air supply pipe 23, while reducing the entry of external impurities, keeping the interior of the equipment clean, and extending the service life of the component.

[0028] The scraping mechanism 25 includes a receiving shaft 251, the outer side of the receiving shaft 251 is rotatably connected to a rotating cylinder 252, the middle part of the outer side of the rotating cylinder 252 is fixedly connected to a paddle 253, the side of the outer side of the rotating cylinder 252 away from the paddle 253 is fixedly connected to a scraping bracket 254, the side of the outer side of the scraping bracket 254 away from the rotating cylinder 252 is fixedly connected to a cylindrical wiper 255, and the side of the outer side of the rotating cylinder 252 away from the scraping bracket 254 is fixedly connected to an anti-blocking mechanism 256. The wind drives the blades 253 to impact, so that the scraping bracket 254 drives the cylindrical wiper 255 to rub the inner wall of the pipe, thereby cleaning the inner wall of the pipe, reducing impurities adhering to the inner wall of the pipe, and avoiding the accumulation of impurities affecting the gas flow effect. The cleaned dust accumulates inside the pipe and is regularly cleaned by disassembly to avoid excessive dust precipitation and affecting the work efficiency. The cylindrical wiper 255 is made of silicone material to reduce surface wear of the components, thereby extending the service life of the components. At the same time, it reduces wear on the pipeline during the cleaning process and avoids pipeline damage after long-term operation.

[0029] The anti-blocking mechanism 256 includes an anti-blocking bracket 2561, and the side of the anti-blocking bracket 2561 away from the rotating cylinder 252 is fixedly connected to the anti-blocking frame 2562, and the side of the anti-blocking frame 2562 is fixedly connected to the support shaft 2563. The outer side of the support shaft 2563 is rotatably connected to the friction column 2564, and the outer side of the friction column 2564 is fixedly connected to the rubber block 2565. The blades 253 drive the components to rotate, so that the anti-blocking frame 2562 drives the friction column 2564 to rub the side of the gas pipeline 23 close to the hole 24, thereby achieving the effect of rubbing impurities, preventing impurities from settling and agglomerating, and reducing the difficulty of subsequent cleaning. At the same time, during the friction rotation between the friction column 2564 and the inner wall of the pipeline, the colloid block 2565 contacts the hole 24, thereby achieving the effect of cleaning the groove, preventing the groove from being blocked, and avoiding affecting the gas flow effect, thereby maintaining the normal operation of the equipment, cleaning the impurities in the hole 24 so that some of the impurities fall into the inside of the composite shell 11, and can be cleaned by the processing device 3 to avoid the operation of the internal components of the equipment.

[0030] The third embodiment, based on the first and second embodiments, see Figures 8 and 9As shown, the processing device 3 includes an inclined suction pipe 31, the side of the outside of the inclined suction pipe 31 away from the composite shell 11 is fixedly connected to the processing shell 32, the side of the outside of the processing shell 32 is fixedly connected to the annular frame 34, the inner side of the annular frame 34 is plugged and connected to the second fan 35, the outer side of the processing shell 32 is fixedly connected to the external bracket 33, and the outer side of the external bracket 33 is fixedly connected to the outer side of the composite shell 11. The cleaning device 2 is used to flush the impurities on the surface of the heating core 16, so that the impurities fall to the bottom of the inner wall of the composite shell 11, and the second fan 35 generates wind force, which adsorbs the impurities inside the equipment from one side of the inclined suction pipe 31 to the inside of the processing shell 32, and then moves the impurities to the side of the second fan 35, so as to facilitate the discharge of dust to the outside, thereby keeping the inside of the equipment clean, preventing dust accumulation from affecting thermal efficiency and slowing heating, and avoiding uneven heating of components, which leads to local overheating and accelerated component aging.

[0031] A support shaft 36 is fixedly connected to one side of the inner wall of the processing housing 32. A cylindrical housing 37 is rotatably connected to the outer side of the support shaft 36. A spiral blade 38 is fixedly connected to the outer side of the cylindrical housing 37. A second fan 35 generates airflow, which drives the spiral blade 38 to rotate outside the support shaft 36. The rotation of the spiral blade 38 rubs against the inner wall of the processing housing 32, thereby cleaning impurities. This scraping removes residual impurities, prevents impurities from affecting the flow of other impurities, and prevents friction between impurity particles that increases impurity accumulation, thereby keeping the interior of the device clean.

[0032] When in use, the heating core 16 adopts a convex tube heating core, which guides the path of wind penetration, so that most of the wind can pass through the heating core, greatly reducing the wind resistance of the system. According to test data, for products with the same ventilation area, the wind resistance of the convex tube heating core is reduced by about 25% compared with the concave tube heating core. In order to match the matching size of the convex tube aluminum tube, the heat dissipation strips on both sides of the convex tube aluminum tube are designed to be lowered in height, reducing the weight of each heat dissipation strip. When the weight of each heat dissipation strip is reduced, the weight of the entire air-heating PTC electric heater heating core can be reduced by more than 10%. At the same time, due to the reduction in material costs, the cost of each heat dissipation strip can also be reduced.

[0033] The heating core 16 is placed inside the receiving mechanism 13, one end of the heating core 16 is plugged into the receiving shell 132 inside the receiving mechanism 13, and the other end of the heating core 16 squeezes the squeezing mechanism 135. The spring strip 1353 inside the squeezing mechanism 135 squeezes and contracts to expand the clamping range, thereby facilitating the insertion of the component. At the same time, the heating core 16 is supported by the elastic structure of the spring strip 1353, thereby achieving the effect of squeezing and fixing the component. When the heating core 16 is inside the composite shell 11, the air flow flows from the grille cover 19 on one side to the grille cover 19 on the other side, and the air flow contacts the heating core 16, thereby achieving efficient heating and heat transfer, so as to meet the subsequent operation requirements. Secondly, the receiving mechanism 13 slides inside the composite shell 11, thereby facilitating the pulling out of the receiving mechanism 13 and taking out the heating core 16 placed inside the receiving mechanism 13, thereby achieving the effect of facilitating the replacement of components, avoiding component failure, reducing the difficulty of component operation, and improving the design. In terms of applicability, the composite device 1 maintains airflow through the grille cover 19 while reducing the entry of impurities. However, after the composite device 1 has been in operation for a long time, impurities are easily attached to the surface of the heating core 16, which affects the operating efficiency of the components and increases the safety hazards of the components. A cleaning device 2 is set on the top of the composite device 1, and the internal components of the composite device 1 are flushed by the first fan 22 inside the cleaning device 2, so as to remove impurities on the surface of the components, reduce the attachment of impurities on the surface of the components, and extend the service life of the heating core 16. The flushed impurities fall into the inside of the composite shell 11, and a processing device 3 is set at the bottom of one side of the outside of the composite shell 11. The processing device 3 absorbs the dust on the bottom of the inner wall of the composite device 1, thereby achieving the function of cleaning internal impurities, reducing the internal impurities of the equipment, reducing the interference of impurities on the components, preventing the impact on the operating efficiency of the components, and extending the service life of the equipment. Secondly, by increasing the internal airflow of the composite device 1, the internal temperature of the equipment is reduced, and the safety hazards inside the equipment are reduced.

[0034] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A convex tube heating core of a wind-heating PTC electric heater for new energy vehicles, characterized in that: It comprises a composite device (1), the top of the composite device (1) is plug-connected with a cleaning device (2), and one side of the outside of the composite device (1) is fixedly connected with a processing device (3); The composite device (1) comprises a composite shell (11), the top of the composite shell (11) is fixedly connected to an external block (12), the outer side of the external block (12) is plug-connected to the outer side of the cleaning device (2), a slide groove (18) is provided at the bottom of the inner wall of the composite shell (11), the inner wall of the slide groove (18) is slidably connected to a square slider (17), one side of the outer side of the square slider (17) is fixedly connected to a receiving mechanism (13), the inner side of the receiving mechanism (13) is provided with a heating core (16), a grille cover (19) is fixedly connected to the middle of the two sides of the outer side of the composite shell (11), and the bottom of one side of the outer side of the composite shell (11) is fixedly connected to the outer side of the processing device (3).

2. The convex tube heating core of the air-heating PTC electric heater for new energy vehicles according to claim 1 is characterized in that: A guide block (14) is fixedly connected to one side of the exterior of the receiving mechanism (13), a guide housing (15) is fixedly connected to one side of the exterior of the composite housing (11) close to the guide block (14), and the inner side of the guide housing (15) is plug-connected to the outer side of the guide block (14).

3. The convex tube heating core of the air-heating PTC electric heater for new energy vehicles according to claim 2 is characterized in that: The receiving mechanism (13) comprises a receiving frame (131), one side of the inner wall of the receiving frame (131) is fixedly connected to a receiving shell (132), the side of the inner wall of the receiving frame (131) away from the receiving shell (132) is fixedly connected to an extrusion mechanism (135), the side of the outside of the receiving frame (131) close to the extrusion mechanism (135) is fixedly connected to a cover plate (133), and the side of the outside of the cover plate (133) away from the extrusion mechanism (135) is fixedly connected to a handle (134).

4. The convex tube heating core of the air-heating PTC electric heater for new energy vehicles according to claim 3 is characterized in that: The extrusion mechanism (135) comprises an extrusion plate (1351), a telescopic rod (1352) being fixedly connected to one side of the outside of the extrusion plate (1351), a spring bar (1353) being sleeved on the outside of the telescopic rod (1352), and a side of the outside of the telescopic rod (1352) away from the extrusion plate (1351) being fixedly connected to the outside of the cover plate (133).

5. The convex tube heating core of the air-heating PTC electric heater for new energy vehicles according to claim 4 is characterized in that: A silicone block (1354) is fixedly connected to the side of the extrusion plate (1351) away from the telescopic rod (1352), and a block surface cutout (1355) is provided on the side of the extrusion plate (1351) away from the extrusion plate (1351).

6. The convex tube heating core of the air-heating PTC electric heater for new energy vehicles according to claim 1 is characterized in that: The cleaning device (2) comprises a cleaning frame (21), the outer side of the cleaning frame (21) is plug-connected to the outer side of the external block (12), the inner side of the cleaning frame (21) is plug-connected to a first fan (22), the bottom of the cleaning frame (21) is fixedly connected to an air supply pipe (23), a hole (24) is provided at the bottom of the air supply pipe (23), and a scraping mechanism (25) is fixedly connected to the inner wall of the air supply pipe (23) near the hole (24).

7. The convex tube heating core of the air-heating PTC electric heater for new energy vehicles according to claim 6 is characterized in that: The scraping mechanism (25) comprises a receiving shaft (251), the outer side of the receiving shaft (251) is rotatably connected to a rotating cylinder (252), the middle of the outer side of the rotating cylinder (252) is fixedly connected to a paddle (253), the outer side of the rotating cylinder (252) away from the paddle (253) is fixedly connected to a scraping bracket (254), the outer side of the scraping bracket (254) away from the rotating cylinder (252) is fixedly connected to a cylindrical wiping block (255), and the outer side of the rotating cylinder (252) away from the scraping bracket (254) is fixedly connected to an anti-blocking mechanism (256).

8. The convex tube heating core of the air-heating PTC electric heater for new energy vehicles according to claim 7 is characterized in that: The anti-blocking mechanism (256) comprises an anti-blocking bracket (2561), an anti-blocking bracket (2562) being fixedly connected to an outer side of the anti-blocking bracket (2561) away from the rotating cylinder (252), a support shaft (2563) being fixedly connected to an outer side of the anti-blocking bracket (2562), a friction column (2564) being rotatably connected to an outer side of the support shaft (2563), and a colloid block (2565) being fixedly connected to an outer side of the friction column (2564).

9. The convex tube heating core of the air-heating PTC electric heater for new energy vehicles according to claim 1, characterized in that: The processing device (3) comprises an inclined suction pipe (31), a side of the outside of the inclined suction pipe (31) away from the composite shell (11) is fixedly connected to a processing shell (32), a side of the outside of the processing shell (32) is fixedly connected to an annular frame (34), the inside of the annular frame (34) is plugged and connected to a second fan (35), the outside of the processing shell (32) is fixedly connected to an external bracket (33), and the outside of the external bracket (33) is fixedly connected to the outside of the composite shell (11).

10. The convex tube heating core of the air-heating PTC electric heater for new energy vehicles according to claim 9, characterized in that: A bearing shaft (36) is fixedly connected to one side of the inner wall of the processing shell (32), a cylindrical shell (37) is rotatably connected to the outer side of the bearing shaft (36), and a spiral blade (38) is fixedly connected to the outer side of the cylindrical shell (37).

Images