Compact heat dissipation air duct structure of direct current driver

Abstract

The invention belongs to the technical field of heat dissipation structures, and discloses a compact heat dissipation air duct structure of a direct current driver, the compact heat dissipation air duct structure comprises a driver shell, and an air guide structure is fixedly mounted on the inner side of one end of the driver shell through bolts. Incoming airflow is guided through the flow guide air channel, the sectional area of a narrow opening of the flow guide air channel is reduced, the airflow entering the interior is compressed and then released, and therefore the cooling effect is achieved, the problem that the airflow entering the interior can be reduced to a certain degree according to the Laval principle is solved, and meanwhile the limiting shaft provided with the torsion spring is arranged; when the exhaust air rate is larger than the air inlet rate, airflow can push the movable plate to turn over along the limiting shaft, the inlet channel is opened after turning over, so that the air inlet rate is increased, and dust can be prevented from entering the interior through gaps.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of heat dissipation structure, and particularly relates to a compact heat dissipation air duct structure of a direct-current driver. BACKGROUND

[0002] The direct-current driver is usually used for controlling a direct-current motor, and rotation control of the motor is realized by using an internal motor to send an electric signal. The existing direct-current driver generates heat during long-time operation. In order to ensure the service life of the direct-current driver, a heat dissipation structure is usually arranged on the inner side of the shell of the direct-current driver. The air flow driven by the motor is used to discharge the air with heat in the interior, so that the heat dissipation effect is achieved. The heat dissipation air duct structure is formed by the internal arrangement structure, so that the auxiliary heat dissipation effect is realized.

[0003] For example, the application with the publication number CN113038781A discloses a servo driver with independent air duct structure, and relates to the technical field of servo driver. The servo driver comprises a shell assembly, a forced heat dissipation assembly and a control assembly. The control assembly is arranged on one side of the interior of the shell assembly, and the forced heat dissipation assembly is arranged on the other side of the interior of the shell assembly. The control assembly comprises a control board and a power board, and the power board is provided with a heating component. The forced heat dissipation assembly comprises a radiator, an air duct baffle and a heat dissipation fan. The radiator comprises a base plate. The base plate of the radiator is arranged on the heating component, and the first long side of the base plate of the radiator is in contact with the other side of the side wall of the shell assembly. The air duct baffle is arranged on the second long side of the base plate of the radiator. The base plate of the radiator, the air duct baffle and the other side of the side wall of the shell assembly form a heat dissipation air duct, and the heat dissipation fan is arranged at one end of the heat dissipation air duct. The problems of the current servo driver without air duct heat dissipation, complex air duct construction, high cost and dust accumulation on the circuit board can be solved.

[0004] In the prior art, the air duct baffle structure is arranged to solve the problems of the driver without air heat dissipation, complex air duct construction, high cost and dust accumulation. However, the existing air duct is fixed, so that there is no difference in the air inlet amount under different conditions, and the temperature of the air flow entering the interior is the same as that of the outdoor, and the heat dissipation effect has the problem of deficiency.

[0005] Therefore, the compact heat dissipation air duct structure of the direct-current driver is proposed to solve the problems in the background art. SUMMARY

[0006] In order to solve the problems in the background art, the application provides a compact heat dissipation air duct structure of a direct-current driver.

[0007] In order to achieve the above-mentioned purpose, the application provides the following technical scheme: a compact heat dissipation air duct structure of a direct-current driver, comprising a driver shell, a wind guide structure is fixedly installed on the inner side of one end of the driver shell through bolts; The air guide structure comprises two groups of fixed frames, a plurality of groups of air guide channels are combined and installed between the two groups of fixed frames by welding, a narrow opening is formed in the middle of the air guide channel, a fixed panel is fixedly installed on the side of the fixed frame away from the middle of the driver shell, two groups of limiting shafts are reversely arranged on the inner sides of the upper end and the lower end of the fixed panel, torsional springs are wound on the outer sides of the limiting shafts, and the two ends of the torsional springs are embedded in the inner sides of the fixed panel and the movable plate respectively.

[0008] Preferably, the air guide structure is fixedly installed on the side away from the middle of the driver shell, and comprises an air inlet structure, the air inlet structure comprises a splicing frame, two groups of combination plates are slidingly installed on the inner side of the splicing frame, a plurality of groups of folding frames are reversely arranged between the two groups of combination plates, a limiting disc is fixedly installed at the connection position of the folding frame, a connecting shaft is combined in the middle of the limiting disc, and a filter screen is spliced and installed on the folding frame.

[0009] Preferably, the inner partition plate is welded on the side away from the air inlet structure, and is fixed to the inner side of the driver shell through a bolt structure, a plurality of groups of openings are uniformly formed in the inner sides of the upper end and the lower end of the inner partition plate.

[0010] Preferably, the cross-sectional area of the air guide channel on both sides is greater than that of the narrow opening, and a plurality of groups of strip-shaped air inlets are uniformly formed in the middle of the fixed panel.

[0011] Preferably, the inner sides of the upper end and the lower end of the fixed panel are provided with movable grooves, and the movable grooves are located on the outer side of the movable plate.

[0012] Preferably, the movable plate is provided with a splicing groove on the side away from the air guide channel, and the splicing groove is movably spliced with the fixed panel.

[0013] Preferably, a combination groove is formed in the middle of the splicing frame, a plurality of groups of sealing plates are installed on the side away from the air guide channel of the upper end and the lower end of the splicing frame, and a positioning frame is inserted and installed on the front face of the splicing frame.

[0014] Preferably, an auxiliary handle is installed on the side away from the splicing frame of the positioning frame, support springs are movably arranged in the inner sides of the upper end and the lower end of the positioning frame, a movable block is slidingly arranged on the end of the support spring away from the auxiliary handle, the movable block is located on the inner sides of the upper end and the lower end of the positioning frame, an arc-shaped clamping block is installed on the end of the movable block away from the support spring, and the arc-shaped clamping block is movably embedded in the inner side of the end of the splicing frame.

[0015] Preferably, a through groove is formed in the middle of the combination plate, sliding columns are installed on the top and the bottom of the end of the connecting shaft close to the splicing frame, the sliding columns are slidingly arranged in the inner side of the combination groove, limiting plates are fixedly installed on the two ends of the filter screen, and the limiting plates are slidingly arranged in the inner side of the through groove.

[0016] Preferably, the driver housing is provided with a mounting cover by bolt splicing, and the side of the driver housing away from the air guide structure is provided with a combination cover by bolt splicing.

[0017] Preferably, the inner side of the combination cover is welded with two groups of air guide tubes, and the inner side of the end of the air guide tube close to the air guide structure is welded with four groups of fixing rods, the inner side of the fixing rod is fixedly provided with a driving motor, and the output end of the driving motor is provided with a heat dissipation fan blade.

[0018] Compared with the prior art, the present application has the following advantages: The present application cooperates the air guide structure and the driver housing and the like, which is beneficial to change the air intake under different conditions through the air guide structure, can avoid the problem that the exhaust air is greater than the air intake, and can further reduce the problem of entering the internal gas, guides the entering air flow through the air guide duct, and releases the compressed air flow entering the internal, thereby achieving the effect of cooling, and the Laval principle can reduce the problem of entering the internal air flow to a certain extent, and the limiting shaft provided with the torsional spring can open the access channel when the exhaust air is greater than the air intake, thereby improving the air intake and avoiding the problem that the dust enters the internal through the gap.

[0019] The present application cooperates the air guide structure and the driver housing and the like, which is beneficial to change the air guide structure through the air guide structure, can avoid the problem that the exhaust air is greater than the air intake, and can further reduce the problem of entering the internal gas, guides the entering air flow through the air guide duct, and releases the compressed air flow entering the internal, thereby achieving the effect of cooling, and the Laval principle can reduce the problem of entering the internal air flow to a certain extent, and the limiting shaft provided with the torsional spring can open the access channel when the exhaust air is greater than the air intake, thereby improving the air intake and avoiding the problem that the dust enters the internal through the gap. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the positioning frame structure of the present application; Figure 3 It is a schematic diagram of the air guide interface cross-sectional structure of the present application; Figure 4 It is a schematic diagram of the movable plate structure of the present application; Figure 5 It is a schematic diagram of the air intake structure explosion structure of the present application; Figure 6 It is a schematic diagram of the air intake structure explosion structure of the present application; Figure 5An enlarged view of the middle B; Figure 7 The present application is Figure 5 An enlarged view of the middle A; Figure 8 The present application is

[0021] In the figure: 100, driver housing; 101, mounting cover; 102, combined cover; 103, air duct; 104, fixed rod; 105, drive motor; 106, heat dissipation fan blade; 2, air guide structure; 200, air guide duct; 201, inner partition; 202, opening; 203, fixed frame; 204, narrow opening; 205, fixed panel; 206, air inlet; 207, movable slot; 300, movable plate; 301, limit shaft; 302, torsional spring; 303, splicing groove; 4, air inlet structure; 400, positioning frame; 401, auxiliary handle; 402, support spring; 403, movable block; 404, arc-shaped clamping block; 405, splicing frame; 406, combined slot; 407, sealing plate; 500, folding frame; 501, combined plate; 502, through slot; 503, limit disc; 504, connecting shaft; 505, sliding column; 506, limit plate; 507, filter screen. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0023] As Figures 1 to 8 shown, the present application provides a compact heat dissipation air duct structure of a direct current driver, which comprises a driver housing 100, and an inner side of one end of the driver housing 100 is fixedly installed with an air guide structure 2 through bolts. The air guide structure 2 comprises two groups of fixed frames 203, and a plurality of groups of air guide ducts 200 are combined and installed between the two groups of fixed frames 203 through welding, the middle part of the air guide duct 200 is provided with a narrow opening 204, the side of the fixed frame 203 away from the middle part of the driver housing 100 is fixedly installed with a fixed panel 205, and two groups of limit shafts 301 are reversely arranged on the inner sides of the upper end and the lower end of the fixed panel 205, torsional springs 302 are wound on the outer sides of the limit shafts 301, and the two ends of the torsional spring 302 are embedded in the inner sides of the fixed panel 205 and the movable plate 300, respectively.

[0024] Adopting the above scheme: the driver shell 100 can provide a mounting position for the DC driver body, the fixed frame 203 can be used to weld and install the air guide duct 200, the inner partition plate 201 on the side and the fixed panel 205, the fixed panel 205 can be used to close the end opening, the air guide duct 200 can guide the airflow into the interior, and the airflow can be cooled to a certain extent through the structure of the narrow opening 204, and the limiting shaft 301 can assist the turnover adjustment of the movable plate 300, and the torsional spring 302 can reset the movable plate 300.

[0025] As shown in Figure 2 and Figure 5 , the air guide structure 2 is fixedly installed away from one side of the middle part of the driver shell 100, and the air inlet structure 4 includes a splicing frame 405, two groups of combined plates 501 are slidingly installed on the inner side of the splicing frame 405, a plurality of groups of folding frames 500 are reversely arranged between the two groups of combined plates 501, and a limiting disc 503 is fixedly installed at the connection position of the folding frame 500, a connecting shaft 504 is combinedly arranged at the middle part of the limiting disc 503, and a filter screen 507 is spliced and installed on the folding frame 500.

[0026] Adopting the above scheme: the air inlet structure 4 is used to control the airflow to enter, the splicing frame 405 can provide a mounting position for the internal structure, the combined plate 501 can be slidingly spliced and installed in the splicing frame 405 for combined installation, and the folding frame 500 can be folded through the connecting shaft 504 in the middle part. After folding, the angle between the two groups of folding frames 500 will be kept at 30 degrees, and the filter screen 507 on the inner side of the folding frame 500 can filter and increase the air inlet amount.

[0027] As shown in Figures 1-3 , the fixed frame 203 is welded and installed with the inner partition plate 201 away from the air inlet structure 4, and the inner partition plate 201 is fixed to the inner side of the driver shell 100 through a bolt structure. A plurality of groups of openings 202 are uniformly formed on the inner sides of the upper end and the lower end of the inner partition plate 201.

[0028] The cross-sectional area of the air guide duct 200 on both sides is greater than that of the narrow opening 204, and a plurality of groups of strip-shaped air inlets 206 are uniformly formed in the middle part of the fixed panel 205.

[0029] The inner sides of the upper end and the lower end of the fixed panel 205 are provided with movable grooves 207, and the movable grooves 207 are located on the outer side of the movable plate 300.

[0030] The movable plate 300 is provided with a splicing groove 303 away from the air guide duct 200, and the splicing groove 303 is movably spliced with the fixed panel 205.

[0031] Adopting the above scheme: the inner partition plate 201 can be used to fix the air duct structure and the driver shell 100, maintaining the stability of the installation, and the opening 202 can be used to ensure that the airflow can enter the interior normally when the air intake increases to cool the mainboard inside the driver shell 100. The air inlet 206 can ensure that the airflow can enter the interior normally to cool, and the movable slot 207 can provide a limit for the movable plate 300, assisting the movable plate 300 to close and reduce air intake. The splicing groove 303 can be tightly fixed to the fixed panel 205, which can effectively increase the stability after combination, and can avoid airflow entering the temporal part through the gap.

[0032] As shown in Figures 5-7 The middle part of the splicing frame 405 is provided with a combination groove 406, and a plurality of sealing plates 407 are installed on the upper end and the lower end of the splicing frame 405 away from one side of the guide air duct 200. The front surface of the splicing frame 405 is inserted and installed with a positioning frame 400.

[0033] The side of the positioning frame 400 away from the splicing frame 405 is provided with an auxiliary handle 401, and the inner sides of the upper end and the lower end of the positioning frame 400 are movably provided with supporting springs 402. The end of the supporting spring 402 away from the auxiliary handle 401 is slidably provided with a movable block 403, and the movable block 403 is located on the inner side of the upper end and the lower end of the positioning frame 400. The end of the movable block 403 away from the supporting spring 402 is provided with an arc-shaped clamping block 404, and the arc-shaped clamping block 404 is movably embedded in the inner side of the end part of the splicing frame 405.

[0034] The middle part of the combination plate 501 is provided with a through groove 502, and the top and bottom of one end of the connecting shaft 504 close to the splicing frame 405 are provided with sliding columns 505, and the sliding columns 505 are slidably arranged in the inner side of the combination groove 406. The two ends of the filter screen 507 are fixedly provided with limiting plates 506, and the limiting plates 506 are slidably arranged in the inner side of the through groove 502.

[0035] Adopting the above scheme: the combination groove 406 can be used to limit the combination plate 501 and the folding frame 500 slidably arranged on the inner side, and the sealing plate 407 can extrude the end part of the folding frame 500 after folding on the inner side, so as to keep the upper and lower end parts in a sealed state. The sliding column 505 can slide along the inner side of the combination groove 406, so as to keep the folding frame 500 in a state of being limited on the inner side of the combination plate 501, avoiding disengagement. The auxiliary handle 401 can be used to embed the positioning frame 400 in the inner side of the through groove 502. The supporting spring 402 arranged in the inner side pushes the movable block 403 and the arc-shaped clamping block 404 outward. After the arc-shaped clamping block 404 is embedded in the inner side of the splicing frame 405, the locking effect can be realized, and the positioning frame 400 can be disassembled, replaced and repaired by pulling.

[0036] As shown in Figure 1 andFigure 8 As shown, the driver housing 100 is provided with a mounting cover 101 by bolt splicing, and the side of the driver housing 100 away from the air guide structure 2 is provided with a combination cover 102 by bolt splicing.

[0037] The inner side of the combination cover 102 is welded with two groups of air guide tubes 103, and the inner side of the end of the air guide tube 103 close to the air guide structure 2 is welded with four groups of fixing rods 104, the inner side of the fixing rod 104 is fixedly provided with a driving motor 105, and the output end of the driving motor 105 is provided with a heat dissipation fan blade 106.

[0038] The above scheme has the following advantages: the mounting cover 101 is used to dismount and install the circuit board of the direct current driver main body, the combination cover 102 can fix the heat dissipation structure on the inner side, the air guide tube 103 can limit the air flow and guide the air flow to be discharged, the fixing rod 104 can stably limit the driving motor 105 on the inner side, the driving motor 105 can be powered to drive the heat dissipation fan blade 106 on the output end to rotate, thereby generating suction to suck the air flow on the other outer side and cool down, and the model of the driving motor 105 is Noctua NF-A14x25G2.

[0039] The working principle and use process of the present application are as follows: first, the driving motor 105 continuously powers the heat dissipation fan blade 106 on the output end to rotate, and in the process of rotation, suction is generated to discharge the internal heat flow from one side of the air guide tube 103, due to the negative pressure state, the external air flow will pass through the filter screen 507 and enter the inside of the air guide duct 200, and in the process of entering, the air flow will be compressed due to the narrowing of the narrow opening 204 in the middle, and the compression will reduce the temperature of the air flow entering the inside to a certain extent, and the continuous entering can cool the circuit board; In the process of high-speed heat dissipation, the exhaust volume increases, the negative pressure controls the external air flow to push the movable plate 300 to flip along the limiting shaft 301 to a certain extent, and ensures that the air flow entering the inside passes through the opening 202 to cool the internal structure, when the high-speed heat dissipation is finished, the torsional spring 302 on the outer side of the limiting shaft 301 drives the movable plate 300 to reset, reduces the air intake, and ensures that the air flow passes through the inside of the air guide duct 200 to cool down; When the filter screen 507 is replaced, the worker holds the auxiliary handle 401 to pull the positioning frame 400, the fixed structure of the splicing frame 405 will push the arc-shaped clamping block 404 to embed into the inside of the positioning frame 400 in the pulling process, and the movable block 403 is used to compress the supporting spring 402, after dismounting, the combined plate 501 can be pulled to slide and expand along the combination groove 406, the folding frames 500 are kept in the expanded state, the internal filter screen 507 is taken off to replace, finally the combined plate 501 and the sliding column 505 are inserted into the inside of the combination groove 406 and folded, and finally the positioning frame 400 is assembled.

[0040] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify a subject or action, without necessarily requiring or implying any such actual relationship or order between such subjects or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0041] While embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, combinations, and variations of the embodiments can be undertaken without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A compact heat dissipation air duct structure of a direct current driver, comprising a driver housing (100), characterized in that: The inner side of one end of the driver housing (100) is fixedly installed with a wind guide structure (2) through bolts; The wind guide structure (2) comprises two groups of fixed frames (203), a plurality of groups of flow guide air ducts (200) are combined and installed between the two groups of fixed frames (203) by welding, a narrow opening (204) is formed in the middle of the flow guide air duct (200), a fixed panel (205) is fixedly installed on the side of the fixed frame (203) away from the middle of the driver housing (100), two groups of limiting shafts (301) are reversely arranged on the inner side of the upper end and the lower end of the fixed panel (205), a torsional spring (302) is wound on the outer side of the limiting shaft (301), and the two ends of the torsional spring (302) are embedded in the inner side of the fixed panel (205) and the movable plate (300) respectively.

2. The compact heat dissipation air duct structure of a DC driver according to claim 1, characterized in that: The air inlet structure (4) is fixedly installed on the side of the wind guide structure (2) away from the middle of the driver housing (100), and comprises a splicing frame (405); two groups of combination plates (501) are slidingly installed on the inner side of the splicing frame (405); a plurality of groups of folding frames (500) are reversely arranged between the two groups of combination plates (501); a limiting disc (503) is fixedly installed at the connection of the folding frame (500); a connecting shaft (504) is combined in the middle of the limiting disc (503); and a filter screen (507) is spliced on the folding frame (500).

3. The compact heat dissipation air duct structure of a DC driver according to claim 1, characterized in that: The inner side of the driver housing (100) is fixedly installed with an inner partition plate (201) on the side of the fixed frame (203) away from the air inlet structure (4) through a bolt structure; a plurality of groups of openings (202) are uniformly formed in the inner side of the upper end and the lower end of the inner partition plate (201).

4. The compact heat dissipation air duct structure of a DC driver according to claim 1, characterized in that: The cross-sectional area of the flow guide air duct (200) on the two sides is greater than that of the narrow opening (204); and a plurality of groups of strip-shaped air inlets (206) are uniformly formed in the middle of the fixed panel (205).

5. The compact heat dissipation air duct structure of a DC driver according to claim 1, characterized in that: An active slot (207) is formed in the inner side of the upper end and the lower end of the fixed panel (205), and the active slot (207) is located on the outer side of the movable plate (300).

6. The compact heat dissipation air duct structure of a DC driver according to claim 1, characterized in that: A splicing slot (303) is formed on the side of the movable plate (300) away from the flow guide air duct (200), and the splicing slot (303) is movably spliced with the fixed panel (205).

7. The compact heat dissipation air duct structure of a DC driver according to claim 2, characterized in that: A combination slot (406) is formed in the middle of the splicing frame (405); a plurality of groups of sealing plates (407) are installed on the side of the upper end and the lower end of the splicing frame (405) away from the flow guide air duct (200); and a positioning frame (400) is insertedly installed on the front face of the splicing frame (405).

8. The compact heat dissipation air duct structure of a DC driver according to claim 7, characterized in that: The positioning frame (400) is provided with an auxiliary handle (401) on one side away from the splicing frame (405), and the inner sides of the upper end and the lower end of the positioning frame (400) are movably provided with supporting springs (402), one end of the supporting spring (402) away from the auxiliary handle (401) is slidably provided with a movable block (403), and the movable block (403) is located on the inner side of the upper end and the lower end of the positioning frame (400), one end of the movable block (403) away from the supporting spring (402) is provided with an arc-shaped clamping block (404), and the arc-shaped clamping block (404) is movably embedded in the inner side of the end of the splicing frame (405).

9. The compact heat dissipation air duct structure of a DC driver according to claim 2, characterized in that: The middle part of the combined plate (501) is provided with a through groove (502), the top and the bottom of one end of the connecting shaft (504) near the splicing frame (405) are provided with sliding columns (505), and the sliding columns (505) are slidably arranged in the inner side of the combined groove (406), and the both ends of the filter screen (507) are fixedly provided with limiting plates (506), and the limiting plates (506) are slidably arranged in the inner side of the through groove (502).

10. The compact heat dissipation air duct structure of a DC driver according to claim 1, characterized in that: The driver housing (100) is provided with a mounting cover (101) by bolt splicing, and the side of the driver housing (100) away from the air guide structure (2) is provided with a combined cover (102) by bolt splicing, the inner side of the combined cover (102) is welded with two groups of air guide cylinders (103), the inner side of one end of the air guide cylinder (103) near the air guide structure (2) is welded with four groups of fixed rods (104), the inner side of the fixed rod (104) is fixedly provided with a driving motor (105), and the output end of the driving motor (105) is provided with a heat dissipation fan blade (106).

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