An integrated heat dissipation housing for an inverter

Abstract

This application relates to the technical field of heat dissipation structures, and discloses an integrated heat dissipation housing for an inverter, which includes a housing body, heat dissipation fins, a wind drive, and a flow guiding component; the heat dissipation fins are arranged horizontally on the housing body, and a heat dissipation channel is formed between two adjacent heat dissipation fins; the wind drive is installed on the housing body and is located below the heat dissipation fins, and the air flow provided by the wind drive enters the heat dissipation channel upward; the flow guiding component includes multiple groups of flow guiding members arranged horizontally, and an insertion hole for inserting the heat dissipation fins is formed between two adjacent flow guiding members, and the flow guiding component is inserted and matched with the heat dissipation fins through the insertion hole so that the flow guiding members enter the heat dissipation channel. This application can balance the improvement of the heat dissipation efficiency of the inverter housing and the maintenance of the operating reliability.

Description

Technical Field

[0001] The present application relates to the technical field of heat dissipation structures, and in particular to an integrated heat dissipation housing for an inverter. Background Art

[0002] Currently, heat dissipation fins are usually provided on the housing of an outdoor inverter. In order to improve the heat dissipation effect, the housing of some outdoor inverters also cooperates with wind driving to blow air on the heat dissipation fins to improve the heat dissipation effect.

[0003] The existing arrangements of wind driving and heat dissipation fins are divided into vertical arrangement and horizontal arrangement. When arranged vertically, the heat dissipation gaps formed between the heat dissipation fins are opposite to the wind driving in the vertical direction, so that foreign matters in the outdoor environment are likely to fall into the wind driving through the heat dissipation gaps, interfering with the operation of the wind driving and causing mechanical failures. When arranged horizontally, the heat dissipation gaps formed between the heat dissipation fins are opposite to the wind driving in the horizontal direction, and the wind driving is not easily interfered by foreign matters. However, this layout requires a large space to be reserved on both sides of the inverter to ensure air circulation, limiting the space utilization rate when the inverters are deployed in parallel. At the same time, due to the characteristic that hot air naturally rises, its heat dissipation efficiency is relatively low.

[0004] In view of the above related technologies, it is difficult to balance the improvement of heat dissipation efficiency and the maintenance of operation reliability of the existing inverter housing. There is an urgent need for an integrated heat dissipation housing that can block foreign matters and improve the heat dissipation efficiency. Summary of the Invention

[0005] In order to balance the improvement of heat dissipation efficiency and the maintenance of operation reliability of the inverter housing, the present application provides an integrated heat dissipation housing for an inverter.

[0006] The present application provides an integrated heat dissipation housing for an inverter, adopting the following technical solutions:

[0007] An integrated heat dissipation housing for an inverter includes a housing body, heat dissipation fins, a wind driving device, and a diversion component; the heat dissipation fins are arranged horizontally on the housing body, and a heat dissipation channel is formed between two adjacent heat dissipation fins; the wind driving device is installed on the housing body and is located below the heat dissipation fins, and the air flow provided by the wind driving device enters the heat dissipation channel upward.

[0008] The diversion component includes multiple groups of diversion members arranged horizontally, and an insertion hole for inserting the heat dissipation fins is formed between two adjacent diversion members. The diversion component is inserted and matched with the heat dissipation fins through the insertion hole, so that the diversion members enter the heat dissipation channel.

[0009] Each group of the diversion members includes a first shielding section, a ventilation section, and a second shielding section that are connected in sequence; the first shielding section is located above the ventilation section, the ventilation section is provided with ventilation holes that penetrate up and down, and an air outlet communicating the ventilation holes with the external environment is formed between the first shielding section and the heat dissipation fins; the second shielding section is opposite to the air outlet, and the second shielding section extends downward obliquely in a direction away from the ventilation section, and the orthographic projection of the first shielding section and the second shielding section together along the vertical direction can cover the orthographic projection of the heat dissipation channel along the vertical direction;

[0010] Wherein, one end of the second shielding section away from the ventilation section extends beyond or is flush with the side of the heat dissipation fins away from the outer housing; a rotating piece is hinged to one end of the second shielding section away from the ventilation section; the rotating piece shields the upper surface of the second shielding section, and the free end of the rotating piece is close to the ventilation section and can swing up and down.

[0011] By adopting the above technical solution, through the horizontally arranged heat dissipation fins and the wind power drive located below, in cooperation with the diversion assembly, while shielding the wind power drive to limit impurities from falling into the wind power drive, upward ventilation and heat dissipation can be achieved, effectively improving the heat dissipation efficiency, and at the same time preventing foreign objects in the outdoor environment from falling into the wind power drive, so as to balance the improvement of the heat dissipation performance of the inverter housing and the maintenance of the operation reliability.

[0012] Optionally, the diversion member further includes a connecting section, the connecting section is connected between the first shielding section and the ventilation section, opposite side walls of the connecting section are respectively abutted against two adjacent heat dissipation fins, and one end of the connecting section connected to the ventilation section is higher than one end of the connecting section connected to the first shielding section.

[0013] By adopting the above technical solution, the connecting section increases the height difference between the first shielding section and the ventilation section, so that impurities and dust falling on the first shielding section are not easily moved to the ventilation section.

[0014] Optionally, a travel column is connected to the rotating piece and penetrates downward through the second shielding section, and a travel hole for the travel column to swing together with the rotating piece is formed in the second shielding section.

[0015] By adopting the above technical solution, the rotating piece realizes flexible up and down swinging through the cooperation of the travel column and the travel hole, can automatically adjust the position according to the change of the air flow, and further improves the heat dissipation effect.

[0016] Optionally, the rotating piece has a first position and a second position corresponding to itself, and the rotating piece swings under the control of the air flow between the first position and the second position;

[0017] The first position is characterized in that the rotating piece abuts against the upper surface of the shielding section; the second position is characterized in that the stroke post abuts against one end of the stroke hole away from the ventilation section to limit the further upward rotation of the rotating piece. At this time, a separation cavity is formed between the rotating piece and the upper surface of the shielding section, and the air flow can enter the separation cavity through the stroke hole.

[0018] By adopting the above technical solution, the rotating piece can swing between the first position and the second position according to the control of the air flow, realizing the dynamic balance of the heat dissipation and foreign object prevention functions. In the second position, the air flow can enter the separation cavity through the stroke hole, further enhancing the heat dissipation effect.

[0019] Optionally, a blocking piece is hinged to one end of the ventilation section close to the connecting section. When the rotating piece is in the first position, the free end of the blocking piece can naturally fall on the upper surface of the rotating piece; when the rotating piece is in the second position, the blocking piece can be pushed upward by the air flow to rotate upward, so that a channel for the air flow in the separation cavity to pass through appears between the blocking piece and the rotating piece.

[0020] The blocking piece is hinged to the ventilation section through a limiting member, and the limiting member can limit the rotation range of the blocking piece, so that when the blocking piece rotates upward to the maximum angle, the free end of the blocking piece is still lower than the hinged end of the blocking piece.

[0021] By adopting the above technical solution, the blocking piece can block the space between the free end of the rotating piece and the connecting section to further improve the dust-proof effect.

[0022] Optionally, the free end of the rotating piece and the connecting section are both in an arc shape coaxial with the hinged end of the rotating piece, and the free end of the rotating piece always fits on the arc surface of the connecting section.

[0023] A guiding piece is connected to the free end of the rotating piece. The connecting section is provided with a guiding groove for the guiding piece to be embedded and rotate together with the rotating piece, and the connecting section is provided with an air passing opening penetrating through the connecting section on the inner wall of the guiding groove. When the rotating piece is in the first position, the guiding piece blocks the air passing opening; when the rotating piece is in the second position, the air passing opening is communicated with the separation cavity.

[0024] By adopting the above technical solution, the cooperation between the guiding piece and the guiding groove enables the rotating piece to rotate more stably, and at the same time realizes the functions of blocking and communicating the air passing opening.

[0025] Optionally, the first shielding section includes a horizontal portion and an inclined portion. The horizontal portion extends along a horizontal plane. The inclined portion is located between the horizontal portion and the ventilation section, and the inclined portion extends obliquely downward in a direction away from the horizontal portion and toward the housing.

[0026] The jack extends on the inclined portion until the boundary between the horizontal portion and the extension portion. The horizontal portions between adjacent flow guiding members are sequentially connected and jointly abut against the upper surface of the heat dissipation fins.

[0027] By adopting the above technical solution, through the abutment between the horizontal portion and the heat dissipation fins, the flow guiding assembly can be hung on the heat dissipation fins, improving the convenience of installing the flow guiding assembly.

[0028] Optionally, the flow guiding member further includes an extension section. The extension section extends downward from one end of the horizontal portion away from the inclined portion into the heat dissipation channel, and the extension section is opposite to the second shielding section in the vertical direction.

[0029] By adopting the above technical solution, the design of the extension section further enhances the foreign object prevention performance of the flow guiding member, while optimizing the air flow path and improving the heat dissipation efficiency.

[0030] Optionally, the flow guiding assembly further includes a reinforcing member. The reinforcing member simultaneously connects one ends of all the second shielding sections away from the first shielding section, and the reinforcing member abuts against the side of the heat dissipation fins away from the housing.

[0031] By adopting the above technical solution, the reinforcing member enhances the overall stability of the flow guiding assembly.

[0032] Optionally, the integrated heat dissipation housing further includes an enclosing shell. The enclosing shell is installed on the housing and jointly encloses the heat dissipation fins with the housing, and the enclosing shell has a plurality of through holes for communicating with the air outlet at a position opposite to the air outlet.

[0033] By adopting the above technical solution, the enclosing shell can further improve the foreign object prevention performance of the heat dissipation housing, and at the same time, through the cooperation with the air outlet, the air flow can smoothly flow out of the heat dissipation channel.

[0034] In summary, the present application includes at least one of the following beneficial effects:

[0035] 1. By arranging the heat dissipation fins horizontally and cooperating with the wind power drive below, a good heat dissipation effect is achieved. At the same time, the first shielding section and the second shielding section effectively block foreign objects in the outdoor environment from falling downward into the wind power drive, thereby reducing the possibility of mechanical failures. Thus, both the heat dissipation requirement of the inverter is improved and its operation reliability is enhanced;

[0036] 2. The rotating vane can automatically adjust its position according to the change of the air flow, achieving a dynamic balance between the heat dissipation and anti-foreign object functions. When the air flow strengthens, the rotating vane can open a larger ventilation area, thereby improving the heat dissipation efficiency; while when the air flow weakens or a foreign object approaches, the rotating vane can close or reduce the ventilation area to prevent foreign objects from entering. In addition, when vibrating, the rotating vane can shake off the dust on itself to improve its heat dissipation effect. Brief Description of the Drawings

[0037] Figure 1 is a schematic structural diagram of the first embodiment of the present application;

[0038] Figure 2 is a schematic structural diagram after hiding the enclosure shell in the first embodiment of the present application;

[0039] Figure 3 is a schematic structural diagram of the diversion component in the first embodiment of the present application;

[0040] Figure 4 is a side view of the diversion component when the rotating vane is in the first position in the first embodiment of the present application;

[0041] Figure 5 is a schematic diagram of the air flow direction in the first embodiment of the present application;

[0042] Figure 6 is a schematic structural diagram of the enclosure shell in the first embodiment of the present application;

[0043] Figure 7 is Figure 3 an enlarged structural diagram of part A in

[0044] Figure 8 is a schematic structural diagram of the diversion component when the rotating vane is in the second position in the first embodiment of the present application;

[0045] Figure 9 is a side view of the diversion component when the rotating vane is in the second position in the first embodiment of the present application;

[0046] Figure 10 is a schematic structural diagram of the diversion component when the rotating vane is in the second position in the second embodiment of the present application;

[0047] Figure 11 is Figure 10 a sectional view taken along line B-B in

[0048] Figure 12 is Figure 11 an enlarged structural diagram of part C in

[0049] Description of reference numerals: 1. Outer housing; 2. Heat dissipation fins; 3. Wind power drive; 4. Heat dissipation channel; 5. Flow guide member; 51. First blocking section; 511. Horizontal part; 512. Inclined part; 52. Ventilation section; 53. Second blocking section; 54. Connection section; 55. Abutting section; 56. Extension section; 6. Insertion hole; 7. Ventilation hole; 8. Air outlet; 9. Rotating piece; 10. Stroke column; 11. Stroke hole; 12. Separation cavity; 13. Blocking piece; 14. Limiting member; 141. Hinge seat; 142. Hinge shaft; 143. Limiting part; 15. Guide piece; 16. Guide groove; 17. Air passing opening; 18. Reinforcing member; 19. Enclosing housing; 20. Through hole; 21. Air outlet cavity; 22. Moving groove. Detailed implementation manners

[0050] The following Figures 1 to 12 is to further describe the present application in detail.

[0051] Embodiment 1:

[0052] The embodiment of the present application discloses an integrated heat dissipation housing for an inverter. Refer to Figure 1 and Figure 2 , the integrated heat dissipation housing for an inverter includes an outer housing 1, heat dissipation fins 2, a wind power drive 3, a flow guide assembly, and an enclosing housing 19.

[0053] The outer housing 1 is in the shape of a rectangular box, and a heating element (not shown in the figure) is installed inside the outer housing 1. There are multiple heat dissipation fins 2, each heat dissipation fin 2 is in the shape of a square sheet and is fixed on the outer surface of the outer housing 1. The plane of each heat dissipation fin 2 extends vertically, and multiple heat dissipation fins 2 are evenly spaced along the horizontal direction on the outer housing 1. A vertically extending heat dissipation channel 4 is formed between two adjacent heat dissipation fins 2. An installation seat for installing the wind power drive 3 extends outward from the bottom of the outer housing 1. The wind power drive 3 is installed on the installation seat and is located directly below the heat dissipation fins 2, so as to be able to provide cold air flow upward into the heat dissipation channel 4 to the heat dissipation fins 2, and the installation range of the wind power drive 3 is within the range covered by the heat dissipation fins 2. Among them, the wind power drive 3 in this embodiment is a fan.

[0054] Refer to Figure 2 and Figure 3 , the flow guide assembly is hung on the heat dissipation fins 2 and is in plug-in fit with the heat dissipation fins 2. The flow guide assembly includes a flow guide member 5 and a reinforcing member 18; there are multiple groups of flow guide members 5, and multiple groups of flow guide members 5 are arranged along the distribution direction of the heat dissipation fins 2. The reinforcing member 18 connects all the flow guide members 5 at the same time. An insertion hole 6 for inserting a single heat dissipation fin 2 is formed between two adjacent groups of flow guide members 5. The flow guide assembly is in plug-in fit with the upper part of the heat dissipation fins 2 through the insertion hole 6, so that the flow guide member 5 and the heat dissipation fins 2 are arranged alternately.

[0055] Refer to Figure 3and Figure 4 , specifically, each air guide member 5 includes a first shielding section 51, an abutting section 55, a ventilation section 52, a connecting section 54, and a second shielding section 53 that are connected in sequence. The first shielding section 51 includes a horizontal portion 511 and an inclined portion 512. The horizontal portion 511 extends horizontally, and the horizontal portions 511 on adjacent air guide members 5 are connected. The horizontal portions 511 of all the air guide members 5 form a square strip extending along the distribution direction of the air guide members 5. The inclined portion 512 is in the shape of a square strip. One end of the inclined portion 512 is connected to one end of the horizontal portion 511. At the same time, the inclined portion 512 extends downward obliquely away from the horizontal portion 511, and the included angle between the inclined portion 512 and the horizontal portion 511 is an obtuse angle.

[0056] The abutting section 55 is connected to the bottom end of the inclined portion 512 and is in the shape of a square sheet extending vertically. The ventilation section 52 is in the shape of a strip. One end of the ventilation section 52 is connected to the bottom end of the abutting section 55. At the same time, the ventilation section 52 extends downward obliquely away from the abutting section 55, and the ventilation section 52 is located directly below the first shielding section 51. Ventilation holes 7 are formed in the ventilation section 52. The connecting section 54 is in the shape of a square sheet. One end of the connecting section 54 is connected to the bottom end of the ventilation section 52. At the same time, the end of the connecting section 54 away from the ventilation section 52 is connected to the second shielding section 53, and the end of the connecting section 54 connected to the ventilation section 52 is higher than the end of the connecting section 54 connected to the second shielding section 53. The second shielding section 53 is in the shape of a square strip. One end of the second shielding section 53 is connected to the bottom end of the connecting section 54. At the same time, the second shielding section 53 extends downward obliquely away from both the connecting section 54 and the ventilation section 52. Thus, the air guide members 5 enclose an air outlet cavity 21 with an opening on one side of the air guide members 5.

[0057] Among them, insertion holes 6 are formed between adjacent two inclined portions 512, between adjacent two abutting sections 55, between adjacent two ventilation sections 52, between adjacent two connecting sections 54, and between adjacent two second shielding sections 53. Moreover, the widths of the inclined portion 512, the abutting section 55, the connecting section 54, and the second shielding section 53 in the distribution direction of the air guide members 5 are all the same as the width of the heat dissipation channel 4. Ventilation holes 7 communicating with the insertion holes 6 are formed in the ventilation section 52, and the ventilation holes 7 penetrate the ventilation section 52 up and down.

[0058] Furthermore, the reinforcing member 18 is in the shape of a strip extending along the arrangement direction of the air guide members 5, and the reinforcing member 18 is fixedly connected to the bottom ends of all the second shielding sections 53 at the same time.

[0059] Refer to Figure 2 and Figure 4When the air guide assembly is installed, the air guide assembly is inserted between the heat dissipation fins 2 through the insertion hole 6, so that the horizontal portion 511 abuts against the top surface of the heat dissipation fins 2, and the air guide assembly is hung on the heat dissipation fins 2 through the horizontal portion 511. At the same time, the inclined portion 512 is inclined downward toward the direction close to the outer shell 1, the abutting section 55 abuts against the side of the outer shell 1 connected to the heat dissipation fins 2, the ventilation section 52 and the second shielding section 53 are both inclined downward away from the outer shell 1, and the end of the second shielding section 53 away from the connecting section 54 extends out of the side of the heat dissipation fins 2 away from the outer shell 1, the reinforcement member 18 abuts against the side of the heat dissipation fins 2 away from the outer shell 1, and the air outlet cavity 21 faces the side of the heat dissipation fins 2 away from the outer shell 1.

[0060] It should be noted that one end of the horizontal portion 511 away from the inclined portion 512 is opposite to the second shielding segment 53 in the vertical direction, so that the vertical projection of the first shielding segment 51 and the second shielding segment 53 can cover the vertical projection of the heat dissipation channel 4, so as to block the falling impurities and dust, so that the falling impurities and dust are not easy to fall into the wind drive 3.

[0061] Reference Figure 2 and Figure 4 The air outlet 8 connected to the air outlet cavity 21 is formed between the top of the side of the heat dissipation channel 4 away from the outer shell 1 and the end of the horizontal portion 511 away from the inclined portion 512. The air outlet 8 connected to the air outlet cavity 21 is also formed between the top of the side of the heat dissipation channel 4 away from the outer shell 1 and the side of the second shielding section 53 away from the outer shell 1. Figure 5 Therefore, when the wind drive 3 starts to operate and generates an upward wind flow, the wind flow passes upward through the ventilation holes 7 into the air outlet cavity 21 and is discharged to the external environment from the air outlet 8. The inclination of the second shielding section 53, the ventilation section 52 and the inclined portion 512 all guide the wind flow.

[0062] Reference Figure 1 and Figure 6 , and for the enclosure shell 19, the enclosure shell 19 is in a square box shape with an opening facing the outer shell 1. When the enclosure shell 19 is installed, the enclosure shell 19 is sleeved with the heat dissipation fins 2 in the horizontal direction, and the top of the enclosure shell 19 abuts against the top surface of the horizontal portion 511, while shielding the top surface of the heat dissipation fins 2. The side of the enclosure shell 19 opposite to the surface of the outer shell 1 abuts against the side of the reinforcement 18 away from the outer shell 1, while shielding the side of the heat dissipation fins 2 away from the outer shell 1. The shell of the enclosure shell 19 has a clearance hole for making way for the fan, and the top of the enclosure shell 19 is locked to the outer shell 1 and the horizontal portion 511 at the same time by bolts, and the side of the enclosure shell 19 abutting against the reinforcement 18 is locked to the reinforcement 18 by bolts, so as to position the guide assembly while installing the enclosure shell 19.

[0063] The baffle shell 19 and the outer shell 1 jointly enclose the heat dissipation fins 2 to direct the air flow upward. Through holes 20 communicating with the air outlet 8 are arrayed on the top of the baffle shell 19 and at the position relative to the air outlet 8 on the side of the baffle shell 19 opposite to the outer shell 1, and the air flow at the air outlet 8 flows to the external environment through the through holes 20. The through holes 20 can be circular or strip-shaped, and are preferably strip-shaped extending horizontally in this embodiment.

[0064] Referring to Figure 2 and Figure 3 , further, the flow guiding member 5 further includes an extension section 56. The extension section 56 is fixed to one end of the horizontal portion 511 away from the connection section 54. At the same time, the extension section 56 extends vertically downward, and sockets 6 are also formed between adjacent extension sections 56. A plurality of holes are also formed on the extension section 56 itself for ventilation. The air flow passing upward through the ventilation section 52 flows obliquely after being guided by the inclined portion 512, and then is blocked by the extension section 56 and flows more downward, so as to be able to expand the range of the air flow flowing through the surface of the heat dissipation fins 2 and improve the heat dissipation effect.

[0065] Referring to Figure 2 and Figure 3 , further, the flow guiding assembly is also made of a material capable of conducting heat, and the heat dissipation fins 2 can transfer heat to the flow guiding assembly to expand the heat dissipation area. Since some dust will accumulate on the second shielding section 53 through the through holes 20 and the air outlet 8, affecting the heat dissipation effect, therefore, in order to remove dust from the second shielding section 53, a rotating piece 9 is hinged to one end of the second shielding section 53 away from the connection section 54 through a pin shaft. The rotation axis of the rotating piece 9 is parallel to the distribution direction of the heat dissipation fins 2, and the rotating piece 9 is also made of a material capable of conducting heat.

[0066] Referring to Figure 2 and Figure 3 , the rotating piece 9 is in the shape of a square sheet. Opposite sides of the rotating piece 9 are respectively abutted against opposite surfaces of adjacent two heat dissipation fins 2. The free end of the rotating piece 9 is close to the connection section 54, and the rotating piece 9 is located above the second shielding section 53, so that the rotating piece 9 shields the second shielding section 53, so that the falling dust accumulates on the rotating piece 9.

[0067] Referring to Figure 7 and Figure 8 , a travel column 10 extending downward is fixed to the lower surface of the rotating piece 9. A travel hole 11 for the travel column 10 to pass through is formed on the second shielding section 53 along the extension direction of the second shielding section 53. When the rotating piece 9 rotates, the travel column 10 can move in the travel hole 11.

[0068] Referring to Figure 2 and Figure 8, when the wind-driven device 3 blows upward, it will give the stroke column 10 and the rotating piece 9 the power to swing upward around the hinged end of the rotating piece 9, so that the rotating piece 9 shakes up and down, so as to shake off the dust on the rotating piece 9 to the hinged end of the rotating piece 9 and fall outside the enclosure shell 19 through the through hole 20.

[0069] Refer to Figure 4 and Figure 9 , in order to limit the swing stroke of the rotating piece 9, the rotating piece 9 has a first position and a second position corresponding to itself, and the rotating piece 9 swings between the first position and the second position.

[0070] Refer to Figure 4 and Figure 8 , specifically, when the rotating piece 9 is in the first position, the rotating piece 9 is not pushed upward by the wind flow, and the rotating piece 9 is affected by its own gravity so that the lower surface of the rotating piece 9 abuts against the upper surface of the second shielding section 53. At this time, the length inclination direction of the rotating piece 9 is consistent with that of the second shielding section 53, and the rotating piece 9 shields the stroke hole 11, so that dust is not easily introduced into the stroke hole 11.

[0071] Refer to Figure 8 and Figure 9 , when the rotating piece 9 is in the second position, the free end of the rotating piece 9 is close to the top end of the connecting section 54, and a separation cavity 12 is formed by the separation of the lower surface of the rotating piece 9 from the upper surface of the second shielding section 53, and the stroke column 10 abuts against one end of the stroke hole 11 far from the connecting section 54, thereby restricting the rotating piece 9 from continuing to rotate upward. At the same time, the wind flow can enter the separation cavity 12 through the stroke hole 11 to dissipate heat from the rotating piece 9 and the second shielding section 53.

[0072] Refer to Figure 7 and Figure 8 , furthermore, in order to improve the dust-proof effect, it is necessary to seal the space between the free end of the rotating piece 9 and the connecting section 54. In this embodiment, the connecting section 54 extends vertically, and a blocking piece 13 is hinged to one end of the ventilation section 52 close to the connecting section 54. The blocking piece 13 is in the shape of a square sheet, the axis line of the hinge shaft 14 of the blocking piece 13 is parallel to the axis line of the hinge shaft 14 of the rotating piece 9, and the extending width of the blocking piece 13 is the same as the extending width of the connecting section 54. The blocking piece 13 extends obliquely downward away from the ventilation section 52.

[0073] Refer to Figure 4 and Figure 7 , when the rotating piece 9 is in the first position, the blocking piece 13 can make the free end of the blocking piece 13 naturally droop on the upper surface of the rotating piece 9 under the action of its own gravity, so as to shield the space between the rotating piece 9 and the connecting section 54. When the rotating piece 9 is blown upward by the wind, the rotating piece 9 can push the blocking piece 13 to rotate upward as well.

[0074] Refer toFigure 8 and Figure 9 When the rotating piece 9 is in the second position and cannot rotate upward any further, the blocking piece 13 can still be pushed upward by the air flow in the separation chamber 12, so as to form a channel for the air flow to leave the separation chamber 12 between the blocking piece 13 and the rotating piece 9, thereby realizing the circulation of the air flow.

[0075] Referring to Figure 7 It should be noted that the blocking piece 13 cooperates with the limiting member 14. The blocking piece 13 is hinged to the ventilation section 52 through the limiting member 14, and the limiting member 14 can limit the rotation range of the blocking piece 13. Specifically, the limiting member 14 includes a hinge seat 141, a hinge shaft 142 and a limiting portion 143. The hinge seat 141 is fixed on the ventilation section 52, the hinge shaft 142 rotates in the hinge seat 141, the limiting portion 143 is fixedly connected between the hinge shaft 142 and the blocking piece 13, and a moving groove 22 for the limiting portion 143 to extend out is formed on the hinge seat 141.

[0076] Referring to Figure 7 and Figure 9 When the blocking piece rotates until the limiting portion 143 abuts against the inner top wall of the moving groove 22, the free end of the blocking piece is still lower than the hinged end of the blocking piece, so that when the air flow passes between the blocking piece and the rotating piece 9, the blocking piece deflects the air flow obliquely downward, so as to enable the air flow to dissipate heat from the part of the heat dissipation fins 2 close to the rotating piece 9, improving the uniformity of heat dissipation.

[0077] The implementation principle of an integrated heat dissipation housing for an inverter in this application embodiment is as follows: The first shielding section 51 and the second shielding section 53 jointly shield the falling impurities and dust to protect the wind power drive 3. When the wind power drive 3 blows air, the air flow is guided to be led from the air outlet 8 to the external environment through the ventilation section 52, and the air flow drives the rotating piece 9 to swing, so as to drive the dust on the rotating piece 9 to leave from the air outlet 8.

[0078] Embodiment 2:

[0079] The difference between this embodiment and Embodiment 1 lies in the different ways of closing the space between the free end of the rotating piece 9 and the connecting section 54.

[0080] Referring to Figure 10 、 Figure 11 and Figure 12, specifically, in this embodiment, the connecting section 54 has an arc-shaped structure coaxially extending with the hinge axis 142 of the rotating piece 9. The free end of the rotating piece 9 is also arc-shaped coaxially with the hinge axis 142 of the rotating piece 9, and the free end of the rotating piece 9 abuts against the arc surface of the connecting section 54 to enclose the space between the free end of the rotating piece 9 and the connecting section 54 and prevent dust from entering between the rotating piece 9 and the second shielding section 53. When the rotating piece 9 is in the second position, the free end of the rotating piece 9 still abuts against the arc surface of the connecting section 54.

[0081] A guiding piece 15 is fixedly connected to the free end of the rotating piece 9. The guiding piece 15 has an arc-shaped sheet shape coaxially with the hinge axis 142 of the rotating piece 9, and the upper end of the guiding piece 15 extends beyond the upper surface of the rotating piece 9. A guiding groove 16 for the guiding piece 15 to abut against is formed on the surface of the connecting section 54 where the rotating piece 9 abuts. When the rotating piece 9 swings, the guiding piece 15 swings together in the guiding groove 16 to improve the guiding property and sealing property between the rotating piece 9 and the connecting section 54.

[0082] In addition, in order to improve the fluidity of the air flow, an air passing opening 17 penetrating through the opposite two surfaces of the connecting section 54 is formed on the inner wall of the guiding groove 16. When the rotating piece 9 is in the first position, the guiding piece 15 shields the air passing opening 17, and when the rotating piece 9 is in the second position, the guiding piece 15 leaves the air passing opening 17, the air passing opening 17 is opened and communicated with the separation cavity 12, and the air flow in the separation cavity 12 can flow to the ventilation section 52 through the air passing opening 17.

[0083] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An integrated heat dissipation housing for an inverter, characterized in that: The invention comprises an outer shell (1), heat dissipation fins (2), a wind drive (3) and a flow guide assembly; the heat dissipation fins (2) are arranged on the outer shell (1) in a transverse direction, and a heat dissipation channel (4) is formed between two adjacent heat dissipation fins (2); the wind drive (3) is installed on the outer shell (1) and is located below the heat dissipation fins (2), and the wind flow provided by the wind drive (3) enters the heat dissipation channel (4) upwards; The flow guide assembly comprises a plurality of groups of flow guide members (5) arranged in a transverse direction, a plug hole (6) for plugging the heat dissipation fin (2) is formed between two adjacent flow guide members (5), and the flow guide assembly is plugged and matched with the heat dissipation fin (2) through the plug hole (6) so that the flow guide member (5) enters the heat dissipation channel (4); Each group of the air guide members (5) comprises a first shielding section (51), a ventilation section (52) and a second shielding section (53) which are connected in sequence; the first shielding section (51) is located above the ventilation section (52); the ventilation section (52) has a ventilation hole (7) which passes through the ventilation hole (7) from top to bottom; an air outlet (8) which connects the ventilation hole (7) with the external environment is formed between the first shielding section (51) and the heat dissipation fin (2); the second shielding section (53) is opposite to the air outlet (8), and the second shielding section (53) extends downwardly in a direction away from the ventilation section (52); the vertical projection of the first shielding section (51) and the second shielding section (53) together can cover the vertical projection of the heat dissipation channel (4); Wherein, one end of the second shielding section (53) away from the ventilation section (52) exceeds or is flush with a side of the heat dissipating fin (2) away from the outer shell (1), and a rotating piece (9) is hingedly connected to one end of the second shielding section (53) away from the ventilation section (52); the rotating piece (9) shields the upper surface of the second shielding section (53), and the free end of the rotating piece (9) is close to the ventilation section (52) and can swing up and down; The guide member (5) further comprises a connecting section (54), the connecting section (54) being connected between the second shielding section (53) and the ventilation section (52), the opposite side walls of the connecting section (54) respectively abutting against two adjacent heat dissipation fins (2), and an end of the connecting section (54) connected to the ventilation section (52) being higher than an end of the connecting section (54) connected to the second shielding section (53); The rotating piece (9) is connected to a travel column (10) that passes through the second blocking section (53) downwards, and the second blocking section (53) is provided with a travel hole (11) for the travel column (10) to swing along with the rotating piece (9).

2. The integrated heat dissipation housing for an inverter according to claim 1, characterized in that: The rotating piece (9) has a first position and a second position corresponding to itself, and the rotating piece (9) swings between the first position and the second position under the control of wind flow; The first position is characterized by the rotation piece (9) abutting against the upper surface of the second shielding section (53); the second position is characterized by the travel column (10) abutting against an end of the travel hole (11) away from the ventilation section (52) to limit the rotation piece (9) from continuing to rotate upwards, at which time a separation chamber (12) is formed between the rotation piece (9) and the upper surface of the second shielding section (53), and air flow can enter the separation chamber (12) through the travel hole (11).

3. The integrated heat dissipation housing for an inverter according to claim 2, characterized in that: A blocking piece (13) is hingedly connected to one end of the ventilation section (52) close to the connecting section (54); when the rotating piece (9) is in the first position, the free end of the blocking piece (13) can naturally hang down on the upper surface of the rotating piece (9); when the rotating piece (9) is in the second position, the blocking piece (13) can be pushed by the wind flow to rotate upward, so that a channel for the wind flow in the separation chamber (12) to pass through appears between the blocking piece (13) and the rotating piece (9); The blocking piece (13) is hinged to the ventilation section (52) via a limiting member (14); the limiting member (14) is capable of limiting the rotation range of the blocking piece (13), so that when the blocking piece (13) is rotated upward to a maximum angle, the free end of the blocking piece (13) is still lower than the hinged end of the blocking piece (13).

4. The integrated heat dissipation housing for an inverter according to claim 2, characterized in that: The free end of the rotating piece (9) and the connecting section (54) are both in the shape of an arc coaxial with the hinged end of the rotating piece (9), and the free end of the rotating piece (9) is always in contact with the arc surface of the connecting section (54); The free end of the rotating piece (9) is connected to a guide piece (15); the connecting section (54) is provided with a guide groove (16) for the guide piece (15) to be embedded and rotate together with the rotating piece (9); and the connecting section (54) is provided with an air outlet (17) penetrating the connecting section (54) on the inner wall of the guide groove (16); when the rotating piece (9) is in the first position, the guide piece (15) blocks the air outlet (17); when the rotating piece (9) is in the second position, the air outlet (17) is communicated with the separation chamber (12).

5. The integrated heat dissipation housing for an inverter according to claim 1, characterized in that: The first shielding section (51) comprises a horizontal portion (511) and an inclined portion (512), the horizontal portion (511) extending along a horizontal plane, the inclined portion (512) being located between the horizontal portion (511) and the ventilation section (52), and the inclined portion (512) extending obliquely downwardly from a direction away from the horizontal portion (511) towards a direction close to the outer shell (1); The insertion hole (6) extends on the inclined portion (512) to the boundary between the horizontal portion (511) and the extension portion, and the horizontal portions (511) between adjacent flow guide members (5) are sequentially connected and abut against the upper surface of the heat dissipation fin (2) together.

6. The integrated heat dissipation housing for an inverter according to claim 5, characterized in that: The guide member (5) further comprises an extension section (56), the extension section (56) extending downward from one end of the horizontal portion (511) away from the inclined portion (512) into the heat dissipation channel (4), and the extension section (56) is vertically opposite to the second shielding section (53).

7. The integrated heat dissipation housing for an inverter according to claim 1, characterized in that: The flow guide assembly further comprises a reinforcement member (18), wherein the reinforcement member (18) simultaneously connects one end of all the second shielding segments (53) away from the first shielding segment (51), and the reinforcement member (18) abuts against a side of the heat dissipation fin (2) away from the outer shell (1).

8. The integrated heat dissipation housing for an inverter according to claim 1, characterized in that: The integrated heat dissipation housing further comprises a baffle shell (19), wherein the baffle shell (19) is mounted on the housing body (1) and together with the housing body (1) encloses the heat dissipation fins (2), and the baffle shell (19) has a plurality of through holes (20) for connecting to the air outlet (8) at a position opposite to the air outlet (8).

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