CN215898279U - Heat radiation structure of APF device - Google Patents
Heat radiation structure of APF device Download PDFInfo
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- CN215898279U CN215898279U CN202121471908.2U CN202121471908U CN215898279U CN 215898279 U CN215898279 U CN 215898279U CN 202121471908 U CN202121471908 U CN 202121471908U CN 215898279 U CN215898279 U CN 215898279U
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Abstract
The utility model relates to a heat dissipation structure of an APF device. A heat dissipation structure of an APF device, comprising: the cabinet body is internally provided with an APF module, the front side of the APF module is provided with a module air inlet, and the rear side of the APF module is provided with a module air outlet; the cabinet body air inlet is arranged on the front side wall of the cabinet body and corresponds to the module air inlet of the APF module; the rear side wall of the cabinet body is provided with a cabinet body air outlet; the heat dissipation structure further comprises an air duct, the front end opening of the air duct is in butt joint with the module air outlet on the rear side of the APF module, and the rear end opening of the air duct faces the cabinet air outlet. Above-mentioned scheme can solve current heat radiation structure and lead to the limited problem of radiating efficiency of fan.
Description
Technical Field
The utility model relates to a heat dissipation structure of an APF device.
Background
An APF (active Power Filter), namely an active Power filter, is a novel Power electronic device for dynamically inhibiting harmonic waves and compensating reactive Power, and can quickly track and compensate harmonic waves with different sizes and frequencies. The APF is called as active, and compared with a passive LC filter which can only passively absorb harmonic waves with fixed frequency and fixed magnitude, the APF can sample load current, separate each harmonic wave from reactive power, control and actively output the magnitude, frequency and phase of the current, quickly respond, offset corresponding current in the load, realize dynamic tracking compensation, and can compensate harmonic waves, reactive power and unbalance.
As a power device, the thermal design problem of the APF on the existing market has been a key problem in the design and production process of the APF device. With the market demand change, the capacity of the APF single machine is on the rise, and the problem to be solved is how to radiate heat efficiently. Common schemes in the market mostly use the cabinet shell as whole wind channel, and the anterior air inlet of APF module, the rear portion air-out, the air-out rises to cabinet body top along whole wind channel, utilizes the exhaust device that the top set up to discharge, for example the modularization active power filter that chinese patent document publication for publication No. CN204012710U disclosed is suitable for container installation and uses.
However, in the conventional integral air duct structure, because the hot air traveling path is turned, the efficiency of the fan is certainly reduced and the maximum effect cannot be exerted from front to back and then upwards and backwards.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a heat dissipation structure of an APF device, which solves the problem that the heat dissipation efficiency of a fan is limited due to the existing heat dissipation structure.
The utility model adopts the following technical scheme:
a heat dissipation structure of an APF device, comprising:
the cabinet body is internally provided with an APF module, the front side of the APF module is provided with a module air inlet, and the rear side of the APF module is provided with a module air outlet;
the cabinet body air inlet is arranged on the front side wall of the cabinet body and corresponds to the module air inlet of the APF module;
the rear side wall of the cabinet body is provided with a cabinet body air outlet;
the heat dissipation structure further comprises an air duct, the front end opening of the air duct is in butt joint with the module air outlet on the rear side of the APF module, and the rear end opening of the air duct faces the cabinet air outlet.
Has the advantages that: adopt above-mentioned technical scheme, through docking the wind channel on the module air outlet at APF module rear side, the rear end opening in wind channel is compared and can be closer from cabinet body air outlet in the module air outlet of APF module rear side, thereby play the guide effect to the radiating air current, be favorable to the air current more directly to discharge from cabinet body air outlet, form the straight row structure, compare with prior art, can avoid the limited problem of fan radiating efficiency that the air current route turn leads to, and can avoid the air current at the internal scurrying of cabinet and lead to the internal ambient temperature of cabinet too high, the radiating effect is good.
As a preferred technical scheme: the cabinet body is internally provided with module partition plates which are arranged at intervals up and down, and more than two module installation cavities are separated in the cabinet body; the APF module is fixedly connected with the module partition plate.
Has the advantages that: by adopting the technical scheme, the APF modules can be conveniently installed, and can be separated, so that the mutual influence among the APF modules is reduced.
As a preferred technical scheme: the heat dissipation structure comprises an air duct buckle plate, and the cross section of the air duct buckle plate is U-shaped; the APF module is supported on the top surface of the corresponding module partition plate, the corresponding air duct buckle plate is buckled on the top surface of the module partition plate and forms an air duct with the module partition plate, and the edge part of the front end of the air duct is overlapped on the outer side of the APF module.
Has the advantages that: by adopting the technical scheme, the mode that the air channel is enclosed by the air channel buckle plate and the module partition plate is adopted, the structure is simple, the manufacture and the assembly are convenient, the front end edge part of the air channel and the outer side of the APF module form a lap joint relation, and the sealing between the air channel and the APF module is conveniently realized.
As a preferred technical scheme: the rear end opening of the air duct and the air outlet of the cabinet body are spaced from each other in the front-back direction.
Has the advantages that: by adopting the technical scheme, the front and back intervals can form a buffer area at the rear end opening of the air channel, so that the air outlet of the cabinet body is prevented from forming direct resistance to the flow channel, and the heat dissipation efficiency is favorably improved.
As a preferred technical scheme: the cabinet body is provided with a rear sealing plate, the rear sealing plate is provided with meshes, and the air outlet of the cabinet body is formed by the meshes.
Has the advantages that: the air outlet of the cabinet body is formed by meshes, the structure is simple, and the manufacture is convenient.
As a preferred technical scheme: the rear side wall of the cabinet body is formed by a rear door panel.
Has the advantages that: by adopting the technical scheme, the air duct can be conveniently disassembled, assembled and maintained, and the terminal wiring is also convenient.
As a preferred technical scheme: the air duct is characterized in that a primary switching terminal is arranged on the vertical side wall of the air duct, a primary terminal is arranged at the rear end of the APF module, and the primary terminal is connected with the primary switching terminal through a switching busbar arranged in the air duct.
Has the advantages that: adopt above-mentioned technical scheme can avoid setting up in wind channel to cause the interference to the wiring of APF module to can make the wiring shift to the side, avoid influencing the air-out.
As a preferred technical scheme: and a module clapboard used for supporting the APF modules on the cabinet body is provided with a busbar avoiding port for the parallel busbar to pass through along the vertical direction so as to connect the APF modules in parallel.
Has the advantages that: by adopting the technical scheme, the direct connection of the parallel busbar can be facilitated, unnecessary bending of the parallel busbar is not required, the connection is convenient, and the structure is regular.
As a preferred technical scheme: the vertical side wall of the air duct is provided with a secondary switching terminal, the rear end of the APF module is provided with a secondary terminal, and the secondary terminal is connected with the secondary switching terminal through a secondary switching line.
Has the advantages that: by adopting the technical scheme, the connection of the secondary circuit can be conveniently realized, and the blocking and interference of the secondary switching line to the air outlet can be avoided.
As a preferred technical scheme: and a heat dissipation cavity is arranged above the uppermost APF module, and a heat dissipation fan is arranged on the cavity wall of the heat dissipation cavity.
Has the advantages that: adopt above-mentioned technical scheme can in time discharge the hot-air at cabinet body top, realize the heat dissipation better.
Drawings
FIG. 1 is a front view of a heat dissipation structure of an APF device of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a rear view of FIG. 1;
FIG. 5 is a schematic view of the assembled configuration of the APF module and air chute of FIG. 2 with the cabinet removed;
FIG. 6 is a perspective view of a single APF module and air duct of FIG. 2;
fig. 7 is a schematic structural view of the sequential transfer terminal of fig. 2;
the names of the components corresponding to the corresponding reference numerals in the drawings are: 11. a cabinet body; 12. a frame; 14. a front door panel; 15. a rear door panel; 16. a left side plate; 17. a right side plate; 18. an air inlet of the cabinet body; 19. an air outlet of the cabinet body; 21. a module partition; 22. a bus bar avoidance port; 31. an APF module; 32. a module air outlet; 33. a primary terminal; 41. an air duct; 42. a primary transfer terminal; 43. a secondary transfer terminal; 44. switching the busbar; 45. a secondary patch cord; 46. a parallel busbar; 47. an air duct buckle plate; 48. an ear plate; 51. a heat dissipation fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Embodiment 1 of a heat dissipation structure of an APF device in the present invention:
the heat dissipation structure of the APF device is an inline air duct-splitting heat dissipation structure, as shown in fig. 1, 2, 3 and 4, and includes a cabinet 11, the cabinet 11 includes a frame 12 and a sealing plate, and the sealing plate includes a front door panel 14, a rear door panel 15, a left side panel 16 and a right side panel 17. The cabinet body 11 is internally provided with module partition plates 21, the module partition plates 21 are arranged at intervals up and down, and a plurality of module installation cavities are separated in the cabinet body 11; an APF module 31 is mounted on each module partition 21. The module spacer 21 to which the APF module 31 is attached forms a module mounting plate corresponding to the APF module 31.
Specifically, as shown in fig. 5, there are four APF modules 31, and each APF module 31 is arranged in the cabinet 11 in the up-down direction. Each APF module 31 comprises a module housing in which electrical components and a fan are disposed, and the specific structure of the interior is conventional and will not be described in detail herein. A module air inlet is formed in the front side of each APF module 31, the module air inlet is arranged close to the front door panel 14 of the cabinet body 11, and the front door panel 14 is provided with meshes to form a cabinet body air inlet 18; the rear side of each APF module 31 is provided with a module air outlet 32, and the module air outlets 32 are also in a mesh form.
As shown in fig. 2, 3 and 5, an air duct 41 is arranged behind each APF module 31, as shown in fig. 6 and 7, the air duct 41 includes an air duct buckle plate 47, the cross section of the air duct buckle plate 47 is U-shaped, the opening of the air duct buckle plate 47 is downwards buckled on the module partition plate 21, and the air duct buckle plate is fixed with the module partition plate 21 through an ear plate 48 at the opening of the U-shape, and forms a straight-line heat dissipation air duct together with the module partition plate 21. The front end opening of the air duct 41 is butted on the module air outlet 32 at the rear side of the APF module 31, as shown in fig. 4, the rear end opening of the air duct 41 faces the cabinet air outlet 19 formed by the meshes on the front door panel 14, and a front-back interval is formed between the cabinet air outlet 19 and the cabinet air outlet 19. In addition, the rear side edge of the module partition 21 is aligned with the rear end opening of the air duct 41 in the front-rear direction. In order to ensure the sealing performance between the air duct 41 and the APF module 31, the front end edge portion of the air duct 41 overlaps the outside of the APF module 31.
In order to avoid the influence of the air duct 41 on the connection of the APF module 31, as shown in fig. 5, 6 and 7, a primary switching terminal 42 is arranged on the vertical side wall on the right side of the air duct 41, a conductive column penetrates through the primary switching terminal 42, the inner end of the conductive column in the left-right direction is connected with the primary terminal 33 arranged at the rear end of the APF module 31 through a switching bus bar 44, and the outer end of the conductive column in the left-right direction is connected with a parallel bus bar 46, so that the extraction of A, B, C, N phases is realized; the primary relay terminal 42 has the same structure as the primary terminal 33 at the rear end of the APF module 31, and can easily relay a primary line. The right side of the module partition 21 is provided with a corresponding busbar avoiding opening 22 for the parallel busbar 46 to pass through in the up-down direction so as to connect the APF modules 31 in parallel. In addition, a secondary switching terminal 43 is arranged on the vertical side wall on the left side of the air duct 41, the secondary switching terminal 43 is connected with a secondary terminal arranged at the rear end of the APF module 31 through a secondary switching line 45, the structure of the secondary switching terminal 43 is the same as that of the secondary terminal on the APF module, and switching of a secondary circuit can be conveniently realized. The secondary patch cord 45 is located within the air duct 41, and is shown in perspective in fig. 6. The primary terminal 33 and the secondary terminal on the APF module 31 are both prior art. The primary and secondary transfer terminals 42 and 43 on the air duct 41 are also prior art and commercially available, and the detailed structure thereof will not be described in detail here. In order to facilitate connection and maintenance of the primary adapter terminals 42 and the primary terminals 33, the primary adapter terminals 42 are located on one side of the air duct 41 corresponding to the upper and lower positions of the primary terminals 33 of the APF module 31 in the vertical direction, and are located on the U-shaped opening side of the air duct buckle plate 47, so that the air duct buckle plate 47 can be assembled and disassembled in the vertical direction conveniently.
In addition, a heat dissipation cavity is arranged above the uppermost APF module 31, the heat dissipation cavity is isolated from the uppermost APF module 31 through a heat dissipation cavity partition plate, and the heat dissipation cavity partition plate also forms a module partition plate 21; the rear side cavity wall of the heat dissipation cavity is formed by a rear upper door plate on the cabinet 11, and a heat dissipation fan 51 is disposed thereon for discharging a little heat generated by other power devices in the cabinet 11 except the APF module 31. The heat dissipation fan 51 can be installed according to actual conditions.
When the air conditioner is used, under the action of the fan inside the APF module 31, airflow enters from the cabinet air inlet 18, enters the APF module 31 through the module air inlet to dissipate heat of internal electrical components, hot airflow is discharged from the module air outlet 32 of the APF module 31, is guided by the air duct 41 to enter a buffer area formed by a gap between the APF module 31 and the cabinet air outlet 19 to be buffered, and finally is discharged from the cabinet air outlet 19 on the rear side of the cabinet 11. The buffer area can avoid the problem that the airflow resistance is too large due to the fact that the mesh is directly plugged at the rear end opening of the air duct 41, and the improvement of the heat dissipation efficiency of the fan is facilitated.
The air duct 41 in the direct-exhaust heat dissipation structure can guide airflow to move directionally to the outside of the cabinet body air outlet 19 at the rear side of the cabinet body 11, most of heat generated by the APF module 31 is directly exhausted out of the cabinet body 11 through the cabinet body air outlet 19, a small amount of heat conducted by radiation can be naturally dissipated from the inside of the cabinet body 11 or can be exhausted by the additional heat dissipation fan 51, the problem of disordered airflow flowing of the module air outlet 32 in the prior art can be avoided, the phenomenon that the ambient temperature in the cabinet body 11 is increased due to upward movement of hot air during natural exhausting and the multiple APF modules 31 are influenced mutually can be avoided, and the problem of thermal design is solved. The air duct 41 is provided with the primary switching terminal 42 and the secondary switching terminal 43, so that the rapid connection of the multistage APF module 31 can be realized, and the wiring in the cabinet 11 can be planned more reasonably, so that the wiring process in the cabinet 11 is simpler. In addition, the APF module 31 and the air duct 41 can be designed in a modular manner through the module partition 21, so that the capacity can be expanded and installed conveniently, for example, according to the size of the APF module 31 on the market, a plurality of module groups formed by the APF module 31 and the air duct 41 can be arranged in parallel in the vertical direction by using a conventional low-voltage switch cabinet, and the number of the module groups can be adjusted conveniently.
Embodiment 2 of a heat dissipation structure of an APF device in the present invention:
the difference between the embodiment and the embodiment 1 is that in the embodiment 1, the cabinet body 11 is internally provided with the module partition plates 21, the module partition plates 21 are arranged at intervals up and down, the space in the cabinet body 11 can be isolated, and the module partition plates and the air duct buckle plate 47 jointly form an air duct; in the embodiment, the air duct is a single component, the cross section of the air duct is rectangular, and the air duct is integrally fixed on the air duct buckle plate 47.
Embodiment 3 of a heat dissipation structure of an APF device in the present invention:
the difference between this embodiment and embodiment 2 is that a module mounting support is arranged in the cabinet 11, the module mounting support is L-shaped and arranged in bilateral symmetry, and the horizontal folded edge of the module mounting support is used for fixing the air duct 41.
Of course, in other embodiments, the air duct 41 may be mounted in other ways, such as by providing a fixing ear plate at the rear end thereof, the fixing ear plate extending rearward to the rear of the frame 12, and being fixed to the frame 12 by the fixing ear plate.
Embodiment 4 of a heat dissipation structure of an APF device in the present invention:
the difference between the embodiment and the embodiment 1 is that in the embodiment 1, the cross section of the air duct buckle plate 47 is in a U shape; in the embodiment, the cross section of the duct buckle 47 is semicircular.
Embodiment 5 of a heat dissipation structure of an APF device in the present invention:
the difference between the present embodiment and embodiment 1 is that in embodiment 1, the whole module air outlet 32 of each APF module 31 corresponds to one complete air duct 41, and in the present embodiment, the module air outlet 32 of the APF module 31 corresponds to two air ducts 41 at the same time, and the air is exhausted in parallel through the two air ducts 41.
Embodiment 6 of a heat dissipation structure of an APF device in the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, both the cabinet air outlet 19 and the cabinet air inlet 18 are formed by meshes on the door panel; in this embodiment, the cabinet air outlet 19 and the cabinet air inlet 18 are both grid holes in the form of shutters. In addition, in other embodiments, the cabinet air outlet 19 and the cabinet air inlet 18 may have other forms, such as an open opening with a filter screen.
Example 7 of a heat dissipation structure of an APF device in the present invention:
the difference between the present embodiment and embodiment 1 is that in embodiment 1, a front-back interval is provided between the rear end opening of the air duct 41 and the cabinet air outlet 19; in this embodiment, the flow area of the cabinet air outlet 19 can satisfy the heat dissipation requirement of the APF module 31, and the rear end opening of the air duct 41 is attached to the cabinet air outlet 19.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. A heat dissipation structure of an APF device, comprising:
the cabinet body (11) is internally provided with an APF module (31), the front side of the APF module (31) is provided with a module air inlet, and the rear side of the APF module is provided with a module air outlet (32);
the cabinet air inlet (18) is arranged on the front side wall of the cabinet body (11) and corresponds to the module air inlet of the APF module (31);
it is characterized in that the preparation method is characterized in that,
a cabinet air outlet (19) is formed in the rear side wall of the cabinet body (11);
the heat dissipation structure further comprises an air duct (41), the front end opening of the air duct (41) is connected to the module air outlet (32) on the rear side of the APF module (31) in a butt joint mode, and the rear end opening of the air duct (41) faces towards the cabinet body air outlet (19).
2. The heat dissipation structure of claim 1, wherein a module partition plate (21) is arranged in the cabinet body (11), the module partition plate (21) is arranged at an upper and lower interval, and more than two module installation cavities are separated in the cabinet body (11).
3. The heat dissipation structure of claim 2, characterized in that the heat dissipation structure comprises an air duct gusset (47), the cross section of the air duct gusset (47) being U-shaped; the APF module (31) is supported on the top surface of the corresponding module partition plate (21), the corresponding air duct buckle plate (47) is buckled on the top surface of the module partition plate (21) and forms an air duct (41) with the module partition plate (21), and the edge part of the front end of the air duct (41) is overlapped on the outer side of the APF module (31).
4. The heat dissipation structure of claim 1, 2 or 3, wherein the rear end opening of the air duct (41) is spaced from the cabinet air outlet (19) by a distance.
5. A heat dissipating structure according to claim 1, 2 or 3, wherein the cabinet body (11) is provided with a rear sealing plate, the rear sealing plate is provided with meshes, and the cabinet body air outlet (19) is formed by the meshes.
6. The heat dissipation structure according to claim 1, 2 or 3, characterized in that the rear side wall of the cabinet (11) is formed by a rear door panel (15).
7. The heat dissipation structure of claim 1, 2 or 3, wherein a primary switching terminal (42) is arranged on a vertical side wall of the air duct (41), a primary terminal (33) is arranged at the rear end of the APF module (31), and the primary terminal (33) is connected with the primary switching terminal (42) through a switching busbar (44) arranged in the air duct (41).
8. The heat dissipation structure of claim 7, wherein the module partition (21) for supporting the APF modules (31) on the cabinet (11) is provided with a busbar avoiding opening (22) for the parallel busbar (46) to pass through in the up-down direction so as to connect the APF modules (31) in parallel.
9. The heat dissipation structure of claim 1, 2 or 3, wherein a secondary adapter terminal (43) is arranged on a vertical side wall of the air duct (41), a secondary terminal is arranged at the rear end of the APF module (31), and the secondary terminal is connected with the secondary adapter terminal (43) through a secondary adapter wire (45).
10. The heat dissipation structure of claim 1, 2 or 3, wherein a heat dissipation chamber is arranged above the uppermost APF module (31), and a heat dissipation fan (51) is arranged on the rear side chamber wall of the heat dissipation chamber.
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| CN202121471908.2U CN215898279U (en) | 2021-06-30 | 2021-06-30 | Heat radiation structure of APF device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113556921A (en) * | 2021-06-30 | 2021-10-26 | 郑州森源新能源科技有限公司 | Heat radiation structure of APF device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113556921A (en) * | 2021-06-30 | 2021-10-26 | 郑州森源新能源科技有限公司 | Heat radiation structure of APF device |
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