CN112688210A - High-frequency direct-current switching power supply with integrated design structure - Google Patents
High-frequency direct-current switching power supply with integrated design structure Download PDFInfo
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- CN112688210A CN112688210A CN202011587657.4A CN202011587657A CN112688210A CN 112688210 A CN112688210 A CN 112688210A CN 202011587657 A CN202011587657 A CN 202011587657A CN 112688210 A CN112688210 A CN 112688210A
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Abstract
The invention discloses a high-frequency direct-current switching power supply with an integrated design structure, which comprises: the cabinet case, set up even radiator unit and along a plurality of electrical apparatus installation component of direction of height interval setting in the cabinet incasement of cabinet incasement, even radiator unit is including setting up turbofan on the roof of cabinet case, setting are in the cloth wind case of turbofan's air-out side and with the quantity of cloth wind case intercommunication with a plurality of even air-out mechanisms that electrical apparatus installation component is the same. According to the high-frequency direct-current switching power supply with the integrally designed structure, the uniform and sufficient heat dissipation of the electrical elements in the cabinet box can be realized through the matching arrangement of the uniform heat dissipation assembly and the electrical installation assembly, the normal work of the electrical elements can be ensured, and the problem that heat dissipation dead angles are easy to occur in the conventional power supply cabinet box is effectively solved; according to the invention, the arrangement of the uniform air outlet mechanism not only improves the overall flow velocity and flow of the cooling air flow, but also improves the overall uniformity of the cooling air flow, and can obviously improve the heat dissipation effect.
Description
Technical Field
The invention relates to the field of power supply equipment, in particular to a high-frequency direct-current switching power supply with an integrated design structure.
Background
An integrated power supply is a complete power supply apparatus which uses a direct-current power supply as a core, combines an alternating-current Uninterruptible Power Supply (UPS) for electric power, an inverter power supply (INV) for electric power, a direct-current conversion power supply (DC/DC) for communication, and the like into a whole, and shares the direct-current power supply, and is widely applied to the fields of industry, scientific research, power equipment, and the like. Electric components are numerous in the cabinet case of integrated power, and electric components can the heat of production volume in the course of the work, if can not in time dispel the heat, influence electric components's work easily, cause electric components harm or cause the accident even. At present, the cooling mode generally adopted is air cooling, and a scattering fan is usually installed in a cabinet to dissipate heat, but because the position of the cooling fan is fixed, the air blowing range is relatively fixed, the heat dissipation is easy to be uneven, a large number of heat dissipation dead corners exist, and enough cold air cannot be obtained, so that the work of electrical components at the heat dissipation dead corners is influenced, and the service life of the electrical components can be shortened.
Disclosure of Invention
The present invention provides a high-frequency dc switching power supply with an integrated design structure, which is directed to overcome the above-mentioned shortcomings in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that: a high-frequency direct-current switching power supply with an integrated design structure comprises: a cabinet box, a uniform heat dissipation component arranged in the cabinet box and a plurality of electrical appliance installation components arranged in the cabinet box at intervals along the height direction,
the uniform heat dissipation assembly comprises a turbofan arranged on a top plate of the cabinet box, an air distribution box arranged on the air outlet side of the turbofan, and a plurality of uniform air outlet mechanisms which are communicated with the air distribution box and are the same as the electrical appliance installation assemblies in number;
even air-out mechanism include with outer defeated tuber pipe, the connection of cloth wind case intercommunication outer annular air-out pipe, with the interior defeated tuber pipe of outer defeated tuber pipe intercommunication and connection interior defeated tuber pipe terminal interior annular air-out pipe, outer annular air-out pipe is in interior annular air-out pipe's periphery, interior annular air-out pipe and outer annular air-out intraduct all have annular air-out passageway, interior annular air-out pipe and outer annular front portion of going out the tuber pipe all have with slit air-out structure or micropore air-out structure of annular air-out passageway intercommunication.
Preferably, the air inlet end of the outer air output pipe is provided with a first trumpet-shaped pipe section, the air outlet end of the outer air output pipe is provided with a first conical pressurization pipe section, and the first pressurization pipe section is communicated with a first air inlet of the outer annular air outlet pipe through a smooth curved surface.
Preferably, the air inlet end of the inner air delivery pipe is provided with a second trumpet-shaped pipe section, the air outlet end of the inner air delivery pipe is provided with a second tapered pressurizing pipe section, and the second pressurizing pipe section is communicated with a second air inlet of the inner annular air outlet pipe through a smooth curved surface; the second flared pipe section is arranged in the middle of the first pressurizing pipe section, and a pressurizing air channel is formed between the outer wall of the second flared pipe section and the inner wall of the first pressurizing pipe section.
Preferably, a first air inlet hole is formed in the back plate of the cabinet box, and an air outlet hole is formed in the cabinet door of the front portion of the cabinet box.
Preferably, the electrical appliance mounting assembly comprises two slide rails fixedly connected to the inner walls of the side plates of the cabinet box, a mounting slide plate arranged on the two slide rails through the matching of the two slide rails, and a plurality of electrical appliance mounting plates arranged on the mounting slide plate at intervals along the front-rear direction of the cabinet box, wherein a plurality of ventilation holes are formed in the electrical appliance mounting plates and the mounting slide plate in a penetrating manner;
the even air-out mechanism is in the lateral part of electrical apparatus installation component, the interior annular goes out the tuber pipe and the outer annular wind pipe wind that blows out passes through can blow to behind the ventilation hole on the electrical apparatus component on the electrical apparatus mounting panel.
Preferably, the cabinet box is internally provided with 3 electrical appliance installation assemblies, namely a first electrical appliance installation assembly, a second electrical appliance installation assembly and a third electrical appliance installation assembly from top to bottom in sequence;
the uniform air outlet mechanisms comprise 3 uniform air outlet mechanisms, namely a first uniform air outlet mechanism, a second uniform air outlet mechanism and a third uniform air outlet mechanism, wherein the lengths and the inner diameters of the outer air delivery pipes of the first uniform air outlet mechanism, the second uniform air outlet mechanism and the third uniform air outlet mechanism are sequentially increased; the lengths of the air inlet ends of the outer air delivery pipes of the first uniform air outlet mechanism, the second uniform air outlet mechanism and the third uniform air outlet mechanism, which extend into the air distribution box, are sequentially increased;
wherein, the interior annular of first even air-out mechanism goes out the tuber pipe and outer annular play tuber pipe is in the lateral part of first electrical installation subassembly, the interior annular of the even air-out mechanism of second goes out the tuber pipe and outer annular play tuber pipe is in the lateral part of second electrical installation subassembly, the interior annular of the even air-out mechanism of third goes out the tuber pipe and outer annular play tuber pipe is in the lateral part of third electrical installation subassembly.
Preferably, the slide rail is provided with a slide groove with an inverted trapezoidal cross section, the slide bar is slidably arranged in the slide groove, and the cross section of the slide bar is in an inverted trapezoidal shape matched with the slide groove;
a plurality of pulley grooves are formed in the inclined inner walls of the two sides of the sliding groove at intervals, pulleys are pivoted in the pulley grooves through rotating shafts, and the arrangement of the pulleys enables the sliding strips to slide in the sliding grooves, and the pulleys roll around the rotating shafts.
Preferably, the slide rail is provided with a locking mechanism for locking the slide bar, the bottom of the slide groove is provided with a counter bore, and the locking mechanism comprises a guide sleeve fixedly arranged in the counter bore, a locking column slidably inserted in the guide sleeve, a first spring connected between the lower end of the locking column and the inner wall of the counter bore, and a roller rotatably connected to the upper end of the locking column;
the bottom surface of the sliding strip is provided with a locking hole for the upper end of the locking column to extend into;
a first inclined guide surface is arranged on one side, close to the cabinet door of the cabinet box, of the locking column; and a rubber pad is arranged on one side of the locking column, which is far away from the cabinet door of the cabinet box.
Preferably, the slide bar is provided with an unlocking mechanism for unlocking the slide bar by the locking mechanism, the front end surface of the slide bar, which is close to the cabinet door of the cabinet box, is provided with an unlocking hole which penetrates through the locking hole inwards, the unlocking mechanism comprises an unlocking rod which can be inserted into the unlocking hole in a sliding manner, a chuck which is fixedly connected to the outer end of the unlocking rod, and a second spring which is sleeved on the unlocking rod and is connected with the chuck and the front end surface of the slide bar at two ends respectively;
the inner end of the unlocking rod is provided with a first arc-shaped driving inclined surface, and the roller is jacked along the horizontal direction through the first arc-shaped driving inclined surface, so that the locking column can be retracted downwards into the sunken hole;
the rear end face of the sliding strip, which is far away from the cabinet door of the cabinet box, is provided with a second arc-shaped driving inclined plane, and the roller is jacked along the horizontal direction through the second arc-shaped driving inclined plane, so that the locking column can be retracted downwards into the sunken hole.
Preferably, the mounting sliding plate is far away from the rear end face of the cabinet door of the cabinet box, a buffer groove is formed in the mounting sliding plate, and a buffer plate is connected to the buffer groove through a third spring.
The invention has the beneficial effects that:
according to the high-frequency direct-current switching power supply with the integrally designed structure, the uniform and sufficient heat dissipation of the electrical elements in the cabinet box can be realized through the matched arrangement of the uniform heat dissipation assembly and the electrical installation assembly, the normal work of the electrical elements can be ensured, and the problem that heat dissipation dead angles are easy to occur in the conventional power supply cabinet box can be effectively solved;
according to the invention, the arrangement of the uniform air outlet mechanism not only improves the overall flow velocity and flow of the cooling air flow, but also improves the overall uniformity of the cooling air flow, and can obviously improve the heat dissipation effect;
according to the invention, the uniform air outlet mechanism is arranged corresponding to the first electrical appliance mounting assembly, so that uniform and sufficient heat dissipation can be realized for each area of the cabinet box on the premise of sharing one air source;
in some embodiments of the invention, the electric appliance installation assembly is arranged, so that the installation, maintenance and replacement of electric appliance elements can be facilitated, and the electric appliance installation assembly has a good application prospect.
Drawings
Fig. 1 is a schematic diagram of an internal structure of a high-frequency dc switching power supply with an integrated design structure according to an embodiment of the present invention;
fig. 2 is a schematic view of the internal airflow of the high-frequency dc switching power supply of the integrated design structure in the embodiment of the invention;
fig. 3 is a schematic structural view of a uniform air outlet mechanism in an embodiment of the present invention;
FIG. 4 is a schematic view of the air flow in the outer annular outlet duct in an embodiment of the invention;
fig. 5 is a schematic diagram of the overall structure of the high-frequency dc switching power supply with an integrated design structure in the embodiment of the invention;
FIG. 6 is a cross-sectional structural view of a slide rail according to an embodiment of the present invention;
FIG. 7 is a schematic longitudinal sectional view of a slide rail according to an embodiment of the invention;
FIG. 8 is a schematic structural view of a locking mechanism in an embodiment of the present invention;
FIG. 9 is a schematic structural view in longitudinal section of a slide in an embodiment of the present invention;
FIG. 10 is a schematic structural view of an unlocking mechanism in an embodiment of the invention;
FIG. 11 is a schematic structural view of a slide bar locked by a locking mechanism in an embodiment of the present invention;
fig. 12 is a schematic structural view of a state in which the slide bar is released from the unlocking mechanism in the embodiment of the present invention.
Description of reference numerals:
1-cabinet box; 10-a top plate; 11-a back plate; 12-cabinet door; 13-air outlet;
2-uniform heat dissipation assembly; 20-a turbofan; 21-air distributing box; 22-uniform air outlet mechanism; 23, mounting a box; 24-an external air conveying pipe; 25-outer ring-shaped air outlet pipe; 26-inner air delivery pipe; 27-inner annular air outlet pipe; 28-a slit air outlet structure; 220-a first uniform air outlet mechanism; 221-a second uniform air outlet mechanism; 222-a third uniform air outlet mechanism; 240 — a first flared tube section; 241-a first plenum section; 242 — a first air inlet; 243-smooth curved surface; 260 — a second flared tube section; 261-a second pressurized pipe section; 262-second air inlet; 263-pressurized air duct;
3-electrical installation components; 30-a slide rail; 31-a slide bar; 32, installing a sliding plate; 33-an electrical appliance mounting plate; 34-a vent hole; 35-a first appliance mounting assembly; 36 — a second appliance mounting assembly; 37-a third appliance mounting assembly; 38-mounting the rod; 300, a chute; 301-pulley groove; 302-a rotating shaft; 303-a pulley; 304-a counter bore; 310-locking holes; 311 — unlocking the hole; 312 — a second arcuate drive ramp; 330-buffer tank; 331-a third spring; 332-a buffer plate;
4, a locking mechanism; 40, a guide sleeve; 41-locking post; 42-a first spring; 43-a roller; 44 — a first inclined guide surface; 45, a rubber pad;
5-an unlocking mechanism; 50-unlocking lever; 51-a chuck; 52-a second spring; 53 — first arc-shaped driving ramp;
6-electrical components.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1
As shown in fig. 1 to 5, the high-frequency dc switching power supply with an integrated design structure of this embodiment includes: a cabinet 1, a uniform heat radiation component 2 arranged in the cabinet 1 and a plurality of electrical appliance installation components arranged in the cabinet 1 at intervals along the height direction,
the uniform heat dissipation assembly 2 comprises a turbofan 20 arranged on a top plate 10 of the cabinet box 1, an air distribution box 21 arranged on the air outlet side of the turbofan 20, and a plurality of uniform air outlet mechanisms 22 which are communicated with the air distribution box 21 and are the same as the electric appliance installation assemblies in number; in this embodiment, a top plate 10 of the cabinet 1 is provided with a mounting box 23, the turbofan 20 is rotatably disposed in the mounting box 23, and the upper portion of the mounting box 23 is provided with a second air inlet hole (not shown).
Referring to fig. 3, the uniform air outlet mechanism 22 includes an outer air output pipe 24 communicated with the air distribution box 21, an outer annular air outlet pipe 25 connected to the end of the outer air output pipe 24, an inner air output pipe 26 communicated with the outer air output pipe 24, and an inner annular air outlet pipe 27 connected to the end of the inner air output pipe 26, the outer annular air outlet pipe 25 is located at the periphery of the inner annular air outlet pipe 27, annular air outlet channels (not shown in the figure) are respectively arranged inside the inner annular air outlet pipe 27 and the outer annular air outlet pipe 25, and the front portions of the inner annular air outlet pipe 27 and the outer annular air outlet pipe 25 are respectively provided with a slit air outlet structure 28 or a micropore air outlet structure communicated with the annular. In this embodiment, the slit air outlet structure 28 is taken as an example for explanation.
Continuing to refer to fig. 3, wherein the air inlet end of the external air delivery pipe 24 has a first trumpet-shaped pipe section 240, the air outlet end of the external air delivery pipe 24 has a first tapered pressure increasing pipe section 241, and the first pressure increasing pipe section 241 is communicated with the first air inlet 242 of the external annular air outlet pipe 25 through a smooth curved surface 243.
The air inlet end of the inner air delivery pipe 26 is provided with a second flared pipe section 260, the air outlet end of the inner air delivery pipe 26 is provided with a second tapered pressurizing pipe section 261, and the second pressurizing pipe section 261 is communicated with a second air inlet 262 of the inner annular air outlet pipe 27 through a smooth curved surface 243; the second flared tube section 260 is disposed at the middle portion inside the first pressure-increasing tube section 241, and a pressure-increasing air passage 263 is formed between the outer wall of the second flared tube section 260 and the inner wall of the first pressure-increasing tube section 241. The supercharging air channel 263 is in a conical shape, and the cross section of the supercharging air channel 263 is in a ring shape, so that the air is supercharged and accelerated due to the reduction of the volume after entering the supercharging air channel 263 from the external air conveying pipe 24; because the second supercharging pipe section 261 is communicated with the second air inlet 262 through the smooth curved surface 243, the speed of loss when the supercharged and accelerated air enters the outer annular air outlet pipe 25 can be reduced as much as possible, and the air can smoothly enter the annular air outlet channel in the outer annular air outlet pipe 25. Likewise, the tapered configuration of the first and second plenum sections 241, 261 causes the air flowing therethrough to be compressed and pressurized, and the air flow rate to be increased.
Wherein, a first air inlet is arranged on the back plate 11 of the cabinet 1, and an air outlet 13 is arranged on the cabinet door 12 at the front part of the cabinet 1. The electrical appliance mounting assembly comprises two slide rails fixedly connected to the inner walls of the side plates of the cabinet box 1, mounting slide plates arranged on the two slide rails through the matching of the two slide bars, and a plurality of electrical appliance mounting plates arranged on the mounting slide plates at intervals along the front-back direction of the cabinet box 1, wherein a plurality of ventilation holes are formed in the electrical appliance mounting plates and the mounting slide plates in a penetrating manner; the uniform air outlet mechanism 22 is located at the side of the electrical appliance mounting assembly, and the air blown out from the inner annular air outlet pipe 27 and the outer annular air outlet pipe 25 can be blown onto the electrical appliance element 6 on the electrical appliance mounting plate after passing through the vent holes. And the size of the cross section of the outer annular air outlet pipe 25 needs to enable the area of the air blown out by the outer annular air outlet pipe 25 to cover the cross section area of the electric appliance mounting plate.
In this embodiment, through the cooperation setting of even radiating component 2 and electrical apparatus installation component, can realize even, the abundant heat dissipation of electrical components 6 in cabinet case 1, can guarantee electrical components 6's normal work, can effectively solve the problem at the heat dissipation dead angle easily appears in current power cabinet case 1.
The working principle of the uniform heat dissipation assembly 2 in this embodiment is as follows:
under the action of the turbofan 20, external air enters the air distribution box 21 and then is dispersed into the uniform air outlet mechanisms 22 through the outer air delivery pipes 24;
in the uniform air outlet mechanism 22, air in the air distribution box 21 enters the outer air delivery pipe 24 through the first flared pipe section 240, and due to the flared structural characteristics of the first flared pipe section 240, the air is facilitated to enter the outer air delivery pipe 24, and the air is primarily pressurized;
a part of the air enters the annular air outlet channel of the outer annular air outlet pipe 25 after being secondarily pressurized through a pressurized air channel 263 formed between the outer wall of the second flared pipe section 260 and the inner wall of the first pressurized pipe section 241, and the high-pressure air is finally ejected out at a high speed from the slit air outlet structure 28 on the front end surface of the outer annular air outlet pipe 25; the air sprayed at high speed generates a negative pressure region behind the slit air outlet structure 28, and sucks the surrounding air, so that the air behind the outer annular air outlet pipe 25 is sucked and is blown to the front of the outer annular air outlet pipe 25 at high speed (refer to fig. 4, the arrow in the figure indicates the airflow direction), so that the total moving air amount is far higher than the high-pressure air sprayed by the slit air outlet structure 28, and a cooling airflow moving forwards is formed in front of the cross section region of the outer annular air outlet pipe 25;
the other part of air in the outer air output pipe 24 enters the second flared pipe section 260 in the middle of the first supercharging pipe section 241, the part of air is supercharged for the second time, and then enters the annular air outlet channel of the inner annular air outlet pipe 27 after being supercharged for the third time by the second conical supercharging pipe section 261, and the high-pressure air is finally ejected at a high speed from the slit air outlet structure 28 on the front end surface of the inner annular air outlet pipe 27; similarly, the air injected at a high speed generates a negative pressure region behind the slit air outlet structure 28 of the inner annular air outlet pipe 27 to suck the surrounding air, so that on one hand, the cooling airflow formed by the outer annular air outlet pipe 25 is sucked to increase the flow rate of the cooling airflow, on the other hand, the suction effect generated by the inner annular air outlet pipe 27 acts on the middle region of the outer annular air outlet pipe 25 to further increase the flow rate of the cooling airflow, so as to play a role in superposing the cooling airflow, and can make up the defects of small flow rate and small flow rate of the middle portion of the cooling airflow generated by the outer annular air outlet pipe 25, thereby improving the overall flow rate and flow rate of the cooling airflow and improving the overall uniformity of the cooling;
after the cooling air current moves forward, the cooling air current passes through the electrical components 6 on the electrical installation plates on the installation sliding plate in sequence after passing through the ventilation holes, and is discharged from the air outlet 13 on the cabinet door 12 after taking away heat generated by the electrical components 6, so that uniform and sufficient heat dissipation is realized. Wherein, the first air inlet hole is arranged on the back plate 11 at the rear side of the outer annular air outlet pipe 25 and the inner annular air outlet pipe 27, so that air can be supplemented to the rear area of the outer annular air outlet pipe 25 and the inner annular air outlet pipe 27.
Referring to fig. 1 and 2, in a further preferred embodiment, 3 electrical appliance mounting assemblies are arranged in the cabinet 1, and a first electrical appliance mounting assembly, a second electrical appliance mounting assembly and a third electrical appliance mounting assembly are arranged in sequence from top to bottom;
the number of the uniform air outlet mechanisms 22 is 3, and the uniform air outlet mechanisms are a first uniform air outlet mechanism 220, a second uniform air outlet mechanism 221 and a third uniform air outlet mechanism 222, wherein the lengths and the inner diameters of the outer air delivery pipes 24 of the first uniform air outlet mechanism 220, the second uniform air outlet mechanism 221 and the third uniform air outlet mechanism 222 are sequentially increased; the lengths of the air inlet ends of the outer air delivery pipes 24 of the first uniform air outlet mechanism 220, the second uniform air outlet mechanism 221 and the third uniform air outlet mechanism 222 extending into the air distribution box 21 are sequentially increased;
wherein, the interior annular of first even air-out mechanism 220 goes out tuber pipe 27 and outer annular play tuber pipe 25 and is in the lateral part of first electrical apparatus installation component, and the interior annular of the even air-out mechanism 221 of second goes out tuber pipe 27 and outer annular play tuber pipe 25 of being in the lateral part of second electrical apparatus installation component, and the interior annular of the even air-out mechanism 222 of third goes out tuber pipe 27 and outer annular play tuber pipe 25 of being in the lateral part of third electrical apparatus installation component.
Referring to fig. 2, the outer air delivery pipe 24 of the first uniform air-out mechanism 220 has a short pipe pass and a small air speed loss, so that the air volume requirement can be properly reduced, and the size of the outer air delivery pipe 24 of the first uniform air-out mechanism 220 and the length of the air inlet end of the outer air delivery pipe extending into the air distribution box 21 are minimum; through the structural design, the heat dissipation effect blown out by the three uniform air outlet mechanisms 22 is uniform and consistent as much as possible, and the air entering the cabinet 1 is fully utilized. Correspond the setting through an even air-out mechanism 22 and a first electrical apparatus installation component, can realize even, abundant heat dissipation to each region of cabinet 1 under the prerequisite of a common wind regime.
Example 2
With further reference to fig. 5 to 11, as a further improvement on the basis of embodiment 1, in this embodiment, a sliding groove 300 with an inverted trapezoidal cross section is formed on the sliding rail 30, the sliding strip 31 is slidably disposed in the sliding groove 300, and the cross section of the sliding strip 31 is inverted trapezoidal in cooperation with the sliding groove 300;
a plurality of pulley 303 grooves 301 are formed in the inclined inner walls of the two sides of the sliding groove 300 at intervals, the pulleys 303 are pivoted in the pulley 303 grooves 301 through rotating shafts 302, and the arrangement of the pulleys 303 enables the pulleys 303 to roll around the rotating shafts 302 when the sliding strip 31 slides in the sliding groove 300.
In this embodiment, the matching of the inverted trapezoid makes the matching between the slide bar 31 and the sliding slot 300 more stable, and the slide bar 31 can be adaptively positioned in the sliding slot 300 (for example, when the slide plate 32 is installed on the slide rail 30, the slide bar 31 can be stably arranged in the sliding slot 300 again under the action of gravity or back-and-forth sliding through the inverted trapezoid structure); furthermore, in this embodiment, the pulley 303 is pivotally connected to the inclined inner wall, and when the slide bar 31 slides, the pulley 303 rolls along with the inclined inner wall, so that the sliding friction force can be greatly reduced, and the slide bar 31 can slide smoothly.
In a further preferred embodiment, a locking mechanism 4 for locking the slide bar 31 is arranged on the slide rail 30, a counter bore 304 is formed at the bottom of the slide groove 300, the locking mechanism 4 includes a guide sleeve 40 fixedly arranged in the counter bore 304, a locking column 41 slidably inserted in the guide sleeve 40, a first spring 42 connected between the lower end of the locking column 41 and the inner wall of the counter bore 304, and a roller 43 rotatably connected to the upper end of the locking column 41;
the bottom surface of the slide bar 31 is provided with a locking hole 310 for the upper end of the locking column 41 to extend into;
the side of the locking column 41 close to the cabinet door 1213 of the cabinet 1 is provided with a first inclined guide surface 44; a rubber pad 45 is provided on the side of the locking post 41 remote from the cabinet door 1213 of the cabinet 1.
The unlocking mechanism 5 is used for unlocking the locking mechanism 4 to the sliding strip 31, an unlocking hole 311 penetrating through the locking hole 310 is formed in the front end face, close to the cabinet door 1213 of the cabinet 1, of the sliding strip 31, the unlocking mechanism 5 comprises an unlocking rod 50 capable of being slidably inserted into the unlocking hole 311, a chuck 51 fixedly connected to the outer end of the unlocking rod 50, and a second spring 52 which is sleeved on the unlocking rod 50 and is connected with the chuck 51 and the front end face of the sliding strip 31 at two ends respectively;
the inner end of the unlocking rod 50 is provided with a first arc-shaped driving inclined surface 53, and the roller 43 is pressed along the horizontal direction through the first arc-shaped driving inclined surface 53, so that the locking column 41 can be retracted downwards into the counter bore 304;
the rear end surface of the slide bar 31 away from the cabinet door 1213 of the cabinet 1 has a second arc-shaped driving inclined surface 312, and the roller 43 is pressed in the horizontal direction by the second arc-shaped driving inclined surface 312, so that the locking column 41 can be retracted downward into the counterbore 304.
The working principle of the locking mechanism 4 is as follows:
when the mounting sliding plate 32 is mounted on the sliding rail 30, the sliding strip 31 at the bottom of the mounting sliding plate 32 is inserted into the sliding groove 300 on the sliding rail 30, then the mounting sliding plate 32 is pushed inward, the second arc-shaped driving inclined surface 312 at the tail end of the sliding strip 31 presses the roller 43 from left to right, the roller 43 rotates through the matching of the second arc-shaped driving inclined surface 312 and the spherical surface of the roller 43, and meanwhile, the horizontal extrusion force is converted into a vertical downward acting force, so that the locking column 41 moves downward and is pushed into the counter bore 304 to compress the first spring 42, and the sliding strip 31 smoothly passes over the roller 43;
when the mounting sliding plate 32 is pushed in place, the locking hole 310 at the bottom of the sliding strip 31 is just above the roller 43, the locking column 41 extends upwards to reset under the action of the elastic force of the first spring 42 and is just inserted into the locking hole 310, the upper end part of the locking column 41 enters the locking hole 310, so that the sliding strip 31 is blocked, the sliding strip 31 cannot move any more, and the sliding strip 31 is locked, as shown in fig. 11.
The operating principle of the unlocking mechanism 5 is as follows:
when the mounting sliding plate 32 needs to be pulled out, the chuck 51 is pressed, the unlocking rod 50 moves rightwards and is inserted into the locking hole 310, the roller 43 is pressed from left to right by the first arc-shaped driving inclined surface 53 at the right end of the unlocking rod 50, and the locking column 41 moves downwards through the matching of the first arc-shaped driving inclined surface 53 and the spherical surface of the roller 43, so that unlocking is realized, as shown in fig. 12; in this process, due to the arrangement of the first inclined guide surface 44, smooth unlocking by the unlocking lever 50 can be ensured, that is, the first arc-shaped driving inclined surface 53 can also have an unlocking effect if it is first contacted with the first inclined guide surface 44.
Keeping the chuck 51 pressed, and then pulling the mounting slide 32 to the left by the handle, in the preferred embodiment, the bottom surface of the slide 31 is substantially flush with the highest point of the roller 43 or slightly lower than the highest point of the roller 43 in the unlocked state; when the installation sliding plate 32 is pulled out leftwards, the sliding strip 31 moves leftwards, due to the action of the roller 43, the bottom surface of the sliding strip 31 is contacted with the roller 43, the roller 43 can be further pressed down, the sliding strip 31 can smoothly slide out, the installation sliding plate 32 can be pulled out, and when the installation sliding plate 32 is pulled out for a proper distance (the locking hole 310 is completely moved to the left side of the roller 43), the pressing on the chuck 51 can be removed.
In a further preferred embodiment, a buffer slot 330 is opened on a rear end surface of the cabinet door 1213 of the installation sliding plate 32, which is far away from the cabinet 1, and a buffer plate 332 is connected to the buffer slot 330 through a third spring 331. When installation slide 32 inserts slide rail 30 and impels, buffer board 332 and installation pole 38 contact, play the cushioning effect, further when draw runner 31 is locked by locking mechanism 4, because the spring action left of third spring 331, draw runner 31 has leftward movement tendency for locking hole 310 right side inner wall and the rubber pad 45 in close contact with on locking post 41 right side, as figure 11, thereby can prevent that installation slide 32 from appearing rocking on slide rail 30, improved the stability that installation slide 32 set up.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.
Claims (10)
1. The utility model provides a high frequency direct current switching power supply of integrated design structure which characterized in that includes: the heat dissipation device comprises a cabinet box, uniform heat dissipation assemblies arranged in the cabinet box and a plurality of electrical appliance installation assemblies arranged in the cabinet box at intervals along the height direction;
the uniform heat dissipation assembly comprises a turbofan arranged on a top plate of the cabinet box, an air distribution box arranged on the air outlet side of the turbofan, and a plurality of uniform air outlet mechanisms which are communicated with the air distribution box and are the same as the electrical appliance installation assemblies in number;
even air-out mechanism include with outer defeated tuber pipe, the connection of cloth wind case intercommunication outer annular air-out pipe, with the interior defeated tuber pipe of outer defeated tuber pipe intercommunication and connection interior defeated tuber pipe terminal interior annular air-out pipe, outer annular air-out pipe is in interior annular air-out pipe's periphery, interior annular air-out pipe and outer annular air-out intraduct all have annular air-out passageway, interior annular air-out pipe and outer annular front portion of going out the tuber pipe all have with slit air-out structure or micropore air-out structure of annular air-out passageway intercommunication.
2. The high-frequency direct-current switching power supply with the integrated design structure according to claim 1, wherein an air inlet end of the outer air output pipe is provided with a first trumpet-shaped pipe section, an air outlet end of the outer air output pipe is provided with a first tapered pressurization pipe section, and the first pressurization pipe section is communicated with a first air inlet of the outer annular air output pipe through a smooth curved surface.
3. The high-frequency direct-current switching power supply with the integrated design structure as claimed in claim 2, wherein the air inlet end of the inner air delivery pipe is provided with a second flared pipe section, the air outlet end of the inner air delivery pipe is provided with a second tapered pressurization pipe section, and the second pressurization pipe section is communicated with the second air inlet of the inner annular air outlet pipe through a smooth curved surface; the second flared pipe section is arranged in the middle of the first pressurizing pipe section, and a pressurizing air channel is formed between the outer wall of the second flared pipe section and the inner wall of the first pressurizing pipe section.
4. The high-frequency direct-current switching power supply with the integrated design structure as claimed in claim 3, wherein a first air inlet hole is formed on a back plate of the cabinet box, and an air outlet hole is formed on a cabinet door at the front part of the cabinet box.
5. The high-frequency direct-current switching power supply with the integrated design structure as claimed in claim 4, wherein the electrical installation assembly comprises two slide rails fixedly connected to the inner walls of the side plates of the cabinet box, an installation sliding plate arranged on the two slide rails through two slide bars in a matching manner, and a plurality of electrical installation plates arranged on the installation sliding plate at intervals along the front-rear direction of the cabinet box, wherein a plurality of ventilation holes are formed through the electrical installation plates and the installation sliding plate;
the even air-out mechanism is in the lateral part of electrical apparatus installation component, the interior annular goes out the tuber pipe and the outer annular wind pipe wind that blows out passes through can blow to behind the ventilation hole on the electrical apparatus component on the electrical apparatus mounting panel.
6. The high-power high-frequency induction heating power supply according to claim 5, wherein 3 electrical installation components are arranged in the cabinet box, namely a first electrical installation component, a second electrical installation component and a third electrical installation component from top to bottom in sequence;
the uniform air outlet mechanisms comprise 3 uniform air outlet mechanisms, namely a first uniform air outlet mechanism, a second uniform air outlet mechanism and a third uniform air outlet mechanism, wherein the lengths and the inner diameters of the outer air delivery pipes of the first uniform air outlet mechanism, the second uniform air outlet mechanism and the third uniform air outlet mechanism are sequentially increased; the lengths of the air inlet ends of the outer air delivery pipes of the first uniform air outlet mechanism, the second uniform air outlet mechanism and the third uniform air outlet mechanism, which extend into the air distribution box, are sequentially increased;
wherein, the interior annular of first even air-out mechanism goes out the tuber pipe and outer annular play tuber pipe is in the lateral part of first electrical installation subassembly, the interior annular of the even air-out mechanism of second goes out the tuber pipe and outer annular play tuber pipe is in the lateral part of second electrical installation subassembly, the interior annular of the even air-out mechanism of third goes out the tuber pipe and outer annular play tuber pipe is in the lateral part of third electrical installation subassembly.
7. The high-power high-frequency induction heating power supply according to claim 5 or 6, wherein a sliding groove with an inverted trapezoidal cross section is formed in the sliding rail, the sliding strip is slidably arranged in the sliding groove, and the cross section of the sliding strip is in an inverted trapezoidal shape matched with the sliding groove;
a plurality of pulley grooves are formed in the inclined inner walls of the two sides of the sliding groove at intervals, pulleys are pivoted in the pulley grooves through rotating shafts, and the arrangement of the pulleys enables the sliding strips to slide in the sliding grooves, and the pulleys roll around the rotating shafts.
8. The high-power high-frequency induction heating power supply according to claim 7, wherein a locking mechanism for locking the slide bar is arranged on the slide rail, a counter bore is formed in the bottom of the slide groove, and the locking mechanism comprises a guide sleeve fixedly arranged in the counter bore, a locking column slidably inserted in the guide sleeve, a first spring connected between the lower end of the locking column and the inner wall of the counter bore, and a roller rotatably connected to the upper end of the locking column;
the bottom surface of the sliding strip is provided with a locking hole for the upper end of the locking column to extend into;
a first inclined guide surface is arranged on one side, close to the cabinet door of the cabinet box, of the locking column; and a rubber pad is arranged on one side of the locking column, which is far away from the cabinet door of the cabinet box.
9. The high-power high-frequency induction heating power supply according to claim 8, wherein an unlocking mechanism for unlocking the slide bar by the locking mechanism is arranged on the slide bar, an unlocking hole penetrating to the locking hole is formed in the front end surface of the slide bar, which is close to the cabinet door of the cabinet box, inwards, the unlocking mechanism comprises an unlocking rod slidably inserted in the unlocking hole, a chuck fixedly connected to the outer end of the unlocking rod, and a second spring sleeved on the unlocking rod and having two ends respectively connected with the chuck and the front end surface of the slide bar;
the inner end of the unlocking rod is provided with a first arc-shaped driving inclined surface, and the roller is jacked along the horizontal direction through the first arc-shaped driving inclined surface, so that the locking column can be retracted downwards into the sunken hole;
the rear end face of the sliding strip, which is far away from the cabinet door of the cabinet box, is provided with a second arc-shaped driving inclined plane, and the roller is jacked along the horizontal direction through the second arc-shaped driving inclined plane, so that the locking column can be retracted downwards into the sunken hole.
10. The high-power high-frequency induction heating power supply according to claim 9, wherein a buffer slot is formed in a rear end face of the mounting sliding plate, which is far away from the cabinet door of the cabinet box, and a buffer plate is connected to the inside of the buffer slot through a third spring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587657.4A CN112688210B (en) | 2020-12-29 | 2020-12-29 | High-frequency direct-current switching power supply with integrated design structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587657.4A CN112688210B (en) | 2020-12-29 | 2020-12-29 | High-frequency direct-current switching power supply with integrated design structure |
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| CN112688210A true CN112688210A (en) | 2021-04-20 |
| CN112688210B CN112688210B (en) | 2022-10-28 |
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| CN112688210B (en) | 2022-10-28 |
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