CN113162371B - Variable wing air-cooled vehicle-mounted direct current converter - Google Patents
Variable wing air-cooled vehicle-mounted direct current converter Download PDFInfo
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- CN113162371B CN113162371B CN202110616237.2A CN202110616237A CN113162371B CN 113162371 B CN113162371 B CN 113162371B CN 202110616237 A CN202110616237 A CN 202110616237A CN 113162371 B CN113162371 B CN 113162371B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
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- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the technical field of direct current converters, in particular to a variable wing air-cooled vehicle-mounted direct current converter, which comprises: the direct current conversion device comprises a conversion mechanism, a heat dissipation mechanism, a dustproof mechanism and a linkage mechanism, wherein the conversion mechanism comprises a direct current conversion main body for direct current conversion and a shell for protecting the direct current conversion main body. According to the invention, the sealed shell can be opened when the temperature in the shell is too high through the heat dissipation mechanism, so that ventilation and heat dissipation are facilitated, and the air cooling efficiency is improved.
Description
Technical Field
The invention relates to the technical field of direct current converters, in particular to a variable wing air-cooled vehicle-mounted direct current converter.
Background
An electric device that converts a direct current voltage of one range or fixed value into another direct current voltage of a variable or fixed value is generally called a direct current converter, and other concepts are electric equipment that converts one fixed direct current voltage into a variable direct current voltage; the DC converter can be made into a small module along with the difference of application fields, the technology is widely applied to stepless speed change and control of a trolley bus, a subway train and an electric vehicle, the control can obtain the performances of stable acceleration and quick response, and the effect of saving electric energy can be simultaneously obtained, 20-30% of electric energy can be saved by replacing a rheostat with a DC chopper, and the DC chopper can not only play a role in regulating voltage (a switching power supply) but also play a role in effectively inhibiting harmonic current noise on the side of a power grid.
The existing vehicle-mounted direct current converter is generally a sealing structure, the heat dissipation is not ideal, the sealing performance of the direct current exchanger can be influenced by the heat dissipation mechanisms such as the mounting heat dissipation fan and the like, so that when the vehicle-mounted direct current converter is used in the environment of severe weather, external dirt can easily enter the direct current exchanger to pollute the interior of the direct current exchanger, the normal operation is influenced, and the heat dissipation mechanisms are not convenient to popularize and use.
Disclosure of Invention
The present invention is directed to solving one of the technical problems of the prior art or the related art.
Therefore, the technical scheme adopted by the invention is as follows:
variable-airfoil air-cooled vehicle-mounted direct-current converter, comprising: the heat dissipation mechanism comprises a conversion mechanism, a heat dissipation mechanism, a dustproof mechanism and a linkage mechanism, wherein the conversion mechanism comprises a direct current conversion main body for direct current conversion and a shell for protecting the direct current conversion main body; the heat dissipation mechanism comprises a heat dissipation opening formed in the shell, a connecting shaft arranged in the heat dissipation opening, a first heat dissipation fin sleeved on the connecting shaft, an electric push rod hinged to the first heat dissipation fin, a slide rail arranged in the shell and used for movably clamping the electric push rod, a connecting rod hinged to the first heat dissipation fin and used for connecting another group of first heat dissipation fins, and a sealing opening formed in the side face of the heat dissipation opening and used for sealing; the dustproof mechanism comprises dustproof cloth which is arranged on the shell and used for preventing dust, a connecting sleeve which is connected to the dustproof cloth and used for being sleeved with the first radiating fin, and folding cloth which is arranged on the dustproof cloth and located on the side face of the connecting sleeve; the linkage mechanism comprises an adjusting rod hinged to the first radiating fin, a connecting loop bar sleeved on the adjusting rod and used for self-adaptive expansion, a sliding ball arranged on the adjusting rod and located in the connecting loop bar, and a second radiating fin movably arranged on the shell and connected with the connecting loop bar.
Through adopting above-mentioned technical scheme, can open sealed casing when the casing internal temperature is too high, be convenient for ventilation cooling, improve air-cooled efficiency, simultaneously can seal the thermovent around the fin motion, further prevent the entering of external filth when the thermovent is opened, the inside influence that does not receive external environment of casing has been guaranteed, and open the thermovent that is located the casing on the rest with the interlock, realize the four sides heat dissipation, the radiating effect is better, better radiating effect under the air-cooled condition has been realized, variable wing structure function is various, satisfy the heat dissipation requirement under the different temperatures, also can periodic use under the adverse circumstances, protecting effect is also better, and is suitable for being generalized to use.
The present invention in a preferred example may be further configured to: the first radiating fin is composed of a plurality of single-plate fins, a plurality of fixing and assembling bolts are inserted among the single-plate fins, and honeycomb holes are formed in the single-plate fin positioned on the lowest layer of the first radiating fin.
By adopting the technical scheme, the heat dissipation effect of the first heat dissipation fin can be improved, so that the first heat dissipation fin has a ventilation effect, the contact area with the heat inside the shell is increased, the heat inside the first heat dissipation fin can conveniently enter the inside of the first heat dissipation fin, and the heat dissipation effect is better.
The present invention in a preferred example may be further configured to: and a bearing used for connecting the connecting shaft is arranged on the first radiating fin.
Through adopting above-mentioned technical scheme, can make a radiating fin more smooth and easy rotation, be convenient for move under electric putter's drive, also can change the setting of radiating fin one through the position of adjusting the bearing on radiating fin one, for example inside and outside length proportion, with the inclination of thermovent adaptation, the practicality is higher.
The present invention in a preferred example may be further configured to: still install the temperature sensor that is used for temperature detection in the casing for control electric connection the electric putter operation.
Through adopting above-mentioned technical scheme, can carry out real time monitoring to the temperature in the casing, and then the self-starting operation after the temperature exceeds standard need not the manual work and controls, certainly, also can carry out the manual work and control, uses according to actual conditions, has improved the security of shifter.
The present invention in a preferred example may be further configured to: the dustproof cloth is provided with a fixing piece and used for fixing the dustproof cloth on the inner wall of the shell.
Through adopting above-mentioned technical scheme, can dustproof cloth play good fixed effect, make it be located the inner wall of casing and protect the thermovent, improve circulation gaseous reliability.
The present invention in a preferred example may be further configured to: the connecting sleeve is a soft rubber sleeve and is matched with the first radiating fin.
Through adopting above-mentioned technical scheme, the adapter sleeve adopts soft rubber sleeve, has good deformation adaptability, can closely overlap in radiating fin outside, and when radiating fin moved from top to bottom, corresponding tensile folding cloth prevented to cause the damage to dustproof cloth, and it is comparatively convenient to use.
The present invention in a preferred example may be further configured to: and a ball for reducing friction is arranged at the gap between the electric push rod and the slide rail.
Through adopting above-mentioned technical scheme, make the frictional force between electric putter and the slide rail obtain effectual reduction through the ball, when electric putter promotes radiating fin one and falls down, electric putter self can remove along electric putter and radiating fin one's contact position, and arc motion is to this contact position, consequently needs electric putter smooth motion in the slide rail, and it is better to adopt the ball effect.
The present invention in a preferred example may be further configured to: and another group of heat dissipation openings are formed at the joint of the second heat dissipation fin and the shell, and the second heat dissipation fin and the first heat dissipation fin have the same structure.
By adopting the technical scheme, the heat dissipation effect can be better at other sides of the shell, and the heat dissipation efficiency of the device is further improved.
The present invention in a preferred example may be further configured to: and a detection fan is arranged on the outer wall of the heat dissipation opening and used for detecting the air flowing direction.
Through adopting above-mentioned technical scheme, can detect that the air current volume of that one side of casing is great through detecting the fan, perhaps the fan starts the position at place, then gives the controller through the signal of telecommunication transmission, and the thermovent of corresponding side is opened to the heat dissipation mechanism structure of cooperation independent operation, and the air feed stream convection passes, guarantees the radiating efficiency.
The technical scheme of the invention has the following beneficial technical effects:
1. according to the invention, through the heat dissipation mechanism, the sealed shell can be opened when the temperature in the shell is too high, ventilation and heat dissipation are facilitated, and the air cooling efficiency is improved.
2. According to the invention, the heat dissipation opening before and after the first heat dissipation fin moves can be sealed through the dustproof mechanism, so that external dirt is further prevented from entering when the heat dissipation opening is opened, the interior of the shell is not influenced by an external environment, specifically, the dustproof cloth is fixed on the shell, when the first heat dissipation fin moves, the connecting sleeve drives the folding cloth to contract, self-adaptive adjustment is carried out, the dustproof cloth covers the heat dissipation opening to prevent dust, and the practical effect is better.
3. According to the invention, the heat dissipation ports on the rest surfaces of the shell can be opened in a linkage manner through the linkage mechanism, so that four-side heat dissipation is realized, the heat dissipation effect is better, specifically, when the electric push rod drives the first heat dissipation fins to press down, the second heat dissipation fins are pressed down through the connecting sleeve rods connected with the adjusting rods, so that the opening of the heat dissipation ports on the other side is realized, the heat dissipation effect is better, and the second heat dissipation groups of the heat dissipation fins can also be driven by the electric push rod independently, and are controlled independently according to the wind direction, so that the heat dissipation effect is improved under the anti-pollution condition.
Drawings
FIG. 1 is a cross-sectional view of one embodiment of the present invention during heat dissipation;
FIG. 2 is an enlarged view at A of one embodiment of the present invention;
FIG. 3 is a schematic view of a dust prevention mechanism according to an embodiment of the present invention;
FIG. 4 is an enlarged view at B of one embodiment of the present invention;
FIG. 5 is an enlarged view of one embodiment of the present invention before heat dissipation;
FIG. 6 is an enlarged view at C of one embodiment of the present invention;
FIG. 7 is a front view of one embodiment of the present invention;
fig. 8 is an installation view of the electric putter in accordance with one embodiment of the present invention.
Reference numerals:
100. a switching mechanism; 110. a DC conversion main body; 120. a housing; 121. a temperature sensor;
200. a heat dissipation mechanism; 210. a heat dissipation port; 211. detecting a fan; 220. a connecting shaft; 230. a first heat dissipation fin; 231. assembling a bolt; 232. honeycomb holes; 233. a bearing; 240. an electric push rod; 241. a ball bearing; 250. A slide rail; 260. a connecting rod; 270. sealing the opening;
300. a dust-proof mechanism; 310. a dust cloth; 311. a fixing member; 320. connecting sleeves; 330. folding the cloth;
400. a linkage mechanism; 410. adjusting a rod; 420. connecting the loop bar; 430. a sliding bead; 440. and a second heat dissipation fin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
It is to be understood that this description is made only by way of example and not as a limitation on the scope of the invention.
The following describes a variable wing air-cooled vehicle-mounted direct-current converter provided by some embodiments of the invention with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1 to 8, the variable-blade air-cooled vehicle-mounted dc converter provided by the present invention includes: a switching mechanism 100, a heat dissipation mechanism 200, a dust prevention mechanism 300, and a link mechanism 400,
the conversion mechanism 100 comprises a direct current conversion main body 110 for direct current conversion and a shell 120 for protecting the direct current conversion main body 110, wherein the direct current conversion main body 110 is further provided with slotted fins for natural heat dissipation, and an upper connecting line of the direct current conversion main body 110 fixedly penetrates through the shell 120 to extend to the outside, so that the use is convenient;
the heat dissipation mechanism 200 comprises a heat dissipation port 210 arranged on the housing 120, a connecting shaft 220 arranged in the heat dissipation port 210, a first heat dissipation fin 230 sleeved on the connecting shaft 220, an electric push rod 240 hinged to the first heat dissipation fin 230, a slide rail 250 arranged on the housing 120 and movably clamped by the electric push rod 240, a connecting rod 260 hinged to the first heat dissipation fin 230 and used for connecting another group of first heat dissipation fins 230, and a sealing port 270 arranged on the side surface of the heat dissipation port 210 and used for sealing, wherein the connecting shaft 220 is arranged in the middle of the heat dissipation port 210, after the first heat dissipation fins 230 are rotated to a horizontal position, the upper and lower sides of the first heat dissipation fins 230 of the heat dissipation port 210 are naturally opened to form ventilation ports, so that outside air can enter and carry heat to be discharged, and quick heat dissipation is realized, and the sealing port 270 is attached to the side surface of the first heat dissipation fins 230 after the first heat dissipation fins 230 are inclined, so that sealing is facilitated, and a sealing gasket can be arranged on the sealing port 270 to improve the sealing effect, the first cooling fin 230 can adjust the length according to the position of the circuit and the components inside the shell 120, so as to prevent the first cooling fin 230 from contacting with the horizontal position after moving to the horizontal position, and when the first cooling fin 230 moves to the horizontal position, the first cooling fin 230 is also closer to the direct current conversion main body 110, so as to be convenient for quickly absorbing and transmitting the heat emitted by the direct current conversion main body 110, and further improve the air-cooled heat dissipation effect of the direct current conversion main body 110, of course, when the first cooling fin 230 inclines to seal the shell 120, the heat can also be transmitted and dissipated through the first cooling fin 230, the first cooling fin 230 is provided with a plurality of fins on one side of the shell 120, which are always in a parallel state under the linkage of the connecting rod 260 and cannot be affected by each other, and the inner wall of the shell 120 is also provided with a controller electrically connected with the electric push rod 240, which can be connected with a vehicle-mounted computer, and can be operated and controlled on a control panel by a driver, the hidden danger caused by heat generated by long-time running is prevented, the temperature sensor 121 is also connected to the controller, a driver can conveniently observe the internal temperature of the shell through a vehicle-mounted computer to remind, the length ratio of the first radiating fins 230 inside and outside the shell 120 can be adjusted according to the installation environment, the inner end and the outer end of the shell 120 can be prolonged when the installation environment is sufficient, so that the radiating effect of the shell 120 is improved, the outer side end of the first radiating fins 230 faces downwards when the first radiating fins 230 incline, external dirt hardly influences the first radiating fins 230, meanwhile, the first radiating fins 230 are shortened by a certain distance, and the use and installation are convenient;
the dustproof mechanism 300 comprises dustproof cloth 310 arranged on the shell 120 for preventing dust, a connecting sleeve 320 connected to the dustproof cloth 310 and used for being sleeved with the first radiating fin 230, and folding cloth 330 arranged on the dustproof cloth 310 and located on the side face of the connecting sleeve 320, the dustproof cloth 310 is connected to the inner wall of the shell 120, the protective effect on the radiating port 210 is good, the connecting sleeve 320 sleeved with the movable first radiating fin 230 is arranged for matching with the movable first radiating fin 230, the connecting sleeve 320 is a soft rubber sleeve, the connecting sleeve 320 is matched with the first radiating fin 230, the connecting sleeve 320 is a soft rubber sleeve and has good deformation adaptability and can be tightly sleeved outside the first radiating fin 230, when the first radiating fin 230 moves up and down, the folding cloth 330 is correspondingly stretched and folded, the dustproof cloth 310 is prevented from being damaged, the dustproof mechanism is convenient to use, and the dustproof cloth 310 is made of an air-permeable dustproof material, certainly, a waterproof layer and a flame retardant layer can be arranged to prevent foreign matters from entering, so as to effectively increase the protective performance of the casing 120, the dustproof cloth 310 is provided with a fixing part 311 for fixing the dustproof cloth 310 on the inner wall of the casing 120, the fixing part 311 is of a nail insertion structure, the dustproof cloth 310 is directly fixed on the inner wall of the casing 120, of course, the dustproof cloth 310 can also be provided as a magnet block which is directly adsorbed at the adsorbable position of the inner wall of the casing 120 through the dustproof cloth 310, when the inner wall of the casing 120 is an adsorbable metal material, the dustproof cloth can be directly used, when the dustproof cloth is of a plastic structure, adsorbable metal needs to be embedded in advance to facilitate corresponding adsorption and fixation, the fixing method is convenient to adjust, and the dustproof cloth 310 can also be adhered on the inner wall of the casing 120 through viscose, the dustproof mechanism 300 is diversified in use, has a good protective effect, and is also applied to the structure of the second radiating fin 440 to perform comprehensive protection, thereby improving the feasibility and reliability of the device;
the linkage mechanism 400 includes an adjusting rod 410 hinged to the first heat dissipating fin 230, a connecting sleeve rod 420 sleeved on the adjusting rod 410 for self-adaptive expansion, a sliding ball 430 mounted on the adjusting rod 410 and located in the connecting sleeve rod 420, and a second heat dissipating fin 440 movably mounted on the housing 120 and connected to the connecting sleeve rod 420, the adjusting rod 410 hinged to the first heat dissipating fin 230 makes arc motion when the first heat dissipating fin 230 moves, and the connecting sleeve rod 420 can be properly tilted while keeping horizontal to avoid rigid damage, the sliding ball 430 has a good sliding effect on the movement of the adjusting rod 410 in the connecting sleeve rod 420, so that the first heat dissipating fin 230 more smoothly drives the second heat dissipating fin 440 to move, the second heat dissipating fin 440 is vertically arranged, the length of the second heat dissipating fin is the same as that of the first heat dissipating fin 230, components in the housing 120 need to be avoided, it needs to be explained that, the heat dissipation mechanism using the second heat dissipation fin 440 as a group can also be set to be the same as the heat dissipation mechanism 200, and is controlled independently without linkage control, so that two modes with different heat dissipation effects, namely two-sided heat dissipation and four-sided heat dissipation, are realized, of course, certain change can be carried out in a starting mode, the concentrated heat dissipation points of the direct current conversion main body 110 are selectively opened, the heating areas of the direct current conversion main body 110 are monitored through the plurality of temperature sensors 121, targeted heat dissipation is realized, and the better heat dissipation effect is ensured.
Example two:
referring to fig. 2, based on the first embodiment, the first heat sink fin 230 is composed of a plurality of single-plate fins, a plurality of bolts 231 for fixing and assembling are inserted between the single-plate fins, and the honeycomb holes 232 are formed on the single-plate fins located at the lowest layer of the first heat sink fin 230, so that the first heat sink fin 230 has a better ventilation effect, the contact area with the heat inside the housing 120 is increased, the heat sink effect is better, the plurality of sets of single-plate fins can be assembled at equal intervals by the bolts 231, the structural strength of the first heat sink fin 230 is improved, the gaps left between the single-plate fins facilitate the air flow and carry away the heat on the single-plate fins, and the honeycomb holes 232 enable the heat dissipated from the dc converting main body 110 to more conveniently pass through the single-plate fins, thereby keeping the heat on the single-plate fins, and increasing the heat absorption efficiency of the first heat sink fins 230, improve the radiating effect, of course, not only can set up honeycomb holes 232 on the veneer fin of below, can set up honeycomb holes 232 except that being located the veneer fin of top, further improvement radiating fin 230 is to the absorption transmission of heat, so do not set up honeycomb holes 232 on the veneer fin that is located the top, prevent that the dust from passing the veneer fin and piling up in honeycomb holes 232 on the veneer fin, also prevented debris such as rainwater and dust from getting into radiating fin 230, influence the heat dissipation of radiating fin 230, from top to bottom to radiating fin 230 play the guard action.
Further, the bearing 233 used for connecting the connecting shaft 220 is installed on the first radiating fin 230, the first radiating fin 230 can rotate smoothly due to the arrangement of the bearing 233, the first radiating fin 230 can move under the driving of the electric push rod 240 conveniently, the arrangement of the first radiating fin 230 can be changed by adjusting the position of the bearing 233 on the first radiating fin 230, for example, the length proportion between the inside and the outside and the inclination angle matched with the radiating port 210 are high, the practicability is high, the bearing 233 can adopt two shaft sleeve structures installed on two sides of the first radiating fin 230, and also can be provided with an integral end shaft sleeve structure, and the strength is high.
On the other hand, the housing 120 is further provided with a temperature sensor 121 for temperature detection, which is used for controlling the operation of the electrically connected electric push rod 240, the temperature sensor 121 is arranged to enable the device to automatically monitor the temperature in the housing 120, when the temperature exceeds the standard, an electric signal is transmitted to the electric push rod 240, the electric push rod 240 drives the first heat dissipation fin 230 to move, the heat dissipation port 210 is opened, heat dissipation is accelerated, the shutdown setting can be fixed for a period of time, the electric push rod 240 drives the first heat dissipation fin 230 to be closed again after the preset value is reached, or the temperature sensor 121 monitors the temperature in real time, when the temperature is lower than the preset value, an electric signal is transmitted to the electric push rod 240, so that the first heat dissipation fin 230 drives the first heat dissipation fin 230 to be retracted, the control modes are various, the temperature sensor 121 can be arranged on the first heat dissipation fin 230 and the second heat dissipation fin 440, or can be arranged on the housing 120 near the heating position of the dc conversion main body 110, in order to improve the monitoring effect, be convenient for in time dispel the heat, reduce high temperature hidden danger, carry out temperature monitoring through a plurality of temperature sensors 121, can effectively improve the security of converter.
Example three:
as shown in fig. 8, in the above embodiment, the ball 241 for reducing friction is disposed at the gap between the electric push rod 240 and the slide rail 250, the friction between the electric push rod 240 and the slide rail 250 is effectively reduced through the ball 241, when the electric push rod 240 pushes the first heat dissipation fin 230 to fall, the electric push rod 240 moves along the contact position between the electric push rod 240 and the first heat dissipation fin 230, and the contact position moves in an arc, so that the electric push rod 240 needs to move smoothly in the slide rail 250, and when the electric push rod 240 drives the first heat dissipation fin 230 to lift, the electric push rod 240 also resets on the slide rail 250, and such movement is reasonable, and certainly, the electric push rod 240 can be replaced by a cable mechanism, and the first heat dissipation fin 230 is lifted by a coiled cable, so that the practicability of the device is improved.
On the other hand, another set of heat dissipation openings 210 is disposed at the joint of the second heat dissipation fins 440 and the housing 120, and the second heat dissipation fins 440 and the first heat dissipation fins 230 have the same structure, and the difference is that the second heat dissipation fins 440 and the first heat dissipation fins 230 are connected by the linkage mechanism 400 for use, so that the integrated structure has a better heat dissipation effect and is convenient for linkage driving.
It should be noted that, the outer wall of the heat dissipating port 210 is installed with a detecting fan 211 for detecting the air flowing direction, the detecting fan 211 is disposed on multiple sides of the housing 120, and the detecting fan is installed in-line, and is electrically connected to the controller in the housing 120, the detecting fan 211 can detect that the air flow on the side of the housing 120 is large, or the fan is started and then transmitted to the controller through an electric signal, the heat dissipation port 210 on the corresponding side is opened by matching with the structure of the independent operation heat dissipation mechanism 200, the air flow passes through the heat dissipation port in a convection manner, the heat dissipation efficiency is ensured, the detection fan 211 detects the ambient air flow environment continuously, when the temperature exceeds the standard, the opening direction is judged in time according to the large wind flow, and compared with the situation that the heat dissipation port 210 is completely opened, a certain protection measure is still left for the shell 120, the temperature is determined according to the exceeding range of the temperature, and the heat can be dissipated completely due to the higher temperature, so that the practicability of the device is improved.
The working principle and the using process of the invention are as follows: firstly, the switching mechanism 100 is installed at a designated position for connection and use, when the temperature sensor 121 detects that the temperature of the shell 120 exceeds a preset value, an electric signal is transmitted to the electric push rod 240, the electric push rod 240 starts to extend and press the first radiating fin 230, the electric push rod 240 moves along with the slide rail 250 in the pressing process, the connecting sleeve rod 420 connected with the adjusting rod 410 downwards drives the second radiating fin 440 to move until the first radiating fin 230 and the second radiating fin 440 move to a horizontal position, the first radiating fin 230 drives the folding cloth 330 connected with the connecting sleeve 320 to move, the dustproof cloth 310 keeps the heat-radiating opening 210 sealed, at the moment, the heat-radiating opening 210 is completely opened, outside air enters the shell 120 through the heat-radiating opening 210, the heat in the shell 120 is carried away and discharged from the opposite heat-radiating opening 210, so as to realize rapid heat radiation, when the temperature sensor 121 detects that the temperature in the shell 120 is lower than the preset value, and then an electric signal is transmitted to the electric push rod 240, so that the electric push rod 240 drives the first heat dissipation fin 230 to reset, the sealing of the shell 120 is completed, and the operation is repeated.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be understood that when an element is referred to as being "mounted to," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (9)
1. Variable wing air-cooled vehicle-mounted direct current converter, characterized by including:
a conversion mechanism (100) including a direct-current conversion body (110) for direct-current conversion and a housing (120) that shields the direct-current conversion body (110);
the heat dissipation mechanism (200) comprises a heat dissipation opening (210) arranged in the shell (120), a connecting shaft (220) arranged in the heat dissipation opening (210), a first heat dissipation fin (230) sleeved on the connecting shaft (220), an electric push rod (240) hinged to the first heat dissipation fin (230), a sliding rail (250) arranged in the shell (120) and used for movably clamping the electric push rod (240), a connecting rod (260) hinged to the first heat dissipation fin (230) and used for connecting another group of first heat dissipation fins (230) and a sealing opening (270) arranged on the side surface of the heat dissipation opening (210) and used for sealing;
the dustproof mechanism (300) comprises dustproof cloth (310) which is arranged on the shell (120) and used for preventing dust, a connecting sleeve (320) which is connected to the dustproof cloth (310) and used for being sleeved with the first radiating fin (230), and folding cloth (330) which is arranged on the dustproof cloth (310) and located on the side face of the connecting sleeve (320);
the linkage mechanism (400) comprises an adjusting rod (410) hinged to the first radiating fins (230), a connecting loop bar (420) sleeved on the adjusting rod (410) and used for self-adaptive expansion, a sliding ball (430) installed on the adjusting rod (410) and located in the connecting loop bar (420), and second radiating fins (440) movably installed on the shell (120) and connected with the connecting loop bar (420).
2. The variable-wing air-cooled vehicle-mounted direct-current converter according to claim 1, wherein the first radiating fins (230) are composed of a plurality of single-plate fins, a plurality of assembling bolts (231) for fixing are inserted among the single-plate fins, and honeycomb holes (232) are formed in the single-plate fins positioned at the lowest layer of the first radiating fins (230).
3. The variable-wing air-cooled vehicle-mounted direct-current converter according to claim 1, wherein a bearing (233) for connecting the connecting shaft (220) is mounted on the first heat-dissipating fin (230).
4. The variable-wing air-cooled vehicle-mounted direct-current converter according to claim 1, wherein a temperature sensor (121) for temperature detection is further mounted in the housing (120) and used for controlling operation of the electrically connected electric push rod (240).
5. The variable-wing air-cooled vehicle-mounted direct-current converter according to claim 1, wherein a fixing member (311) is provided on the dustproof cloth (310) for fixing the dustproof cloth (310) on the inner wall of the housing (120).
6. The variable-wing air-cooled vehicle-mounted direct-current converter according to claim 1, wherein the connecting sleeve (320) is a soft rubber sleeve, and the connecting sleeve (320) is matched with the first radiating fin (230).
7. The variable-wing air-cooled vehicle-mounted direct-current converter according to claim 1, wherein a ball (241) for reducing friction is provided at a gap between the electric push rod (240) and the slide rail (250).
8. The variable-wing air-cooled vehicle-mounted direct-current converter according to claim 1, wherein a second group of the heat dissipation openings (210) is arranged at the joint of the second heat dissipation fin (440) and the shell (120), and the second heat dissipation fin (440) and the first heat dissipation fin (230) are identical in structure.
9. The variable-wing air-cooled vehicle-mounted direct-current converter according to claim 1, wherein a detection fan (211) is mounted on an outer wall of the heat-radiating opening (210) for detecting an air flow direction.
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| CN202110616237.2A CN113162371B (en) | 2021-06-02 | 2021-06-02 | Variable wing air-cooled vehicle-mounted direct current converter |
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