CN222030296U - Heat dissipation structure, inverter components and electrical box - Google Patents
Heat dissipation structure, inverter components and electrical box Download PDFInfo
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- CN222030296U CN222030296U CN202420296450.9U CN202420296450U CN222030296U CN 222030296 U CN222030296 U CN 222030296U CN 202420296450 U CN202420296450 U CN 202420296450U CN 222030296 U CN222030296 U CN 222030296U
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 46
- 230000005855 radiation Effects 0.000 claims abstract description 27
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a heat radiation structure, a frequency converter assembly and an electric box. The heat dissipation structure includes: the two mounting plates are arranged in parallel, and a space is reserved between the two mounting plates; at least two fins. According to the heat radiation structure, the frequency converter assembly and the electric box, the two mounting plates with the space are utilized, so that the power module waiting heat radiation structure can be conveniently installed and arranged, the problem that the power module is intensively arranged to generate heat and cannot reliably radiate heat is avoided, the problem that the space occupied by the power module is too large due to too far layout is also avoided, the space is arranged so that gas can reliably radiate all the structures to be radiated through the space, the heat radiation efficiency is improved, the purposes of improving the heat radiation efficiency and reducing the occupied space are achieved, the reliable work of the frequency converter and the reliable heat radiation of the electric box are ensured, the size of the frequency converter is reduced, and the power density of the frequency converter is effectively improved.
Description
Technical Field
The utility model relates to the technical field of electronic element heat dissipation equipment, in particular to a heat dissipation structure, a frequency converter assembly and an electric box.
Background
The heating disaster area of the frequency converter is a power module with rectification and inversion functions. Therefore, the structural design and the device layout of the radiator for radiating the power module are important to the radiating efficiency of the radiating system.
Currently, for a high-power frequency converter, three power modules are generally adopted for rectification and three power modules are adopted for inversion. However, in the prior art, six power modules are attached to the plane of the same radiator, the fan is used to drive airflow to sequentially flow through the six power modules to radiate, if the layout of the power modules is too close, the heat generated by the power modules is concentrated, so that the problem of poor radiating reliability is caused, and if the layout of the power modules is too far, the design volume of the radiator is increased too much, and the space is too large. Therefore, how to design the heat dissipation system of the frequency converter to improve the heat dissipation efficiency and reduce the volume becomes a difficult problem to be solved by those skilled in the art.
Disclosure of utility model
In order to solve the technical problems that the heat dissipation of a power module of a frequency converter is unreliable and the occupied space in the prior art, the heat dissipation structure, the frequency converter assembly and the electric box are provided, wherein the two mounting plates are used for respectively mounting the power module, forming a space for air cooling so as to improve the heat dissipation efficiency and simultaneously reducing the volume.
A heat dissipating structure, comprising:
The two mounting plates are arranged in parallel, and a space is reserved between the two mounting plates;
At least two fins, all of which are arranged in the space, wherein the fins are provided with a first edge and a second edge which are opposite, the first edge is arranged on one mounting plate, and the second edge is arranged on the other mounting plate;
the mounting plate is provided with a first side surface facing away from the space, and the first side surface is used for mounting a structure to be radiated.
All the fins are arranged in parallel, and an air flow channel is formed between every two adjacent fins.
The heat radiation structure further comprises a mounting bracket, the mounting bracket is arranged on the first side face, the mounting bracket and the corresponding first side face jointly enclose a mounting cavity, and the structure to be heat radiated is arranged in the mounting cavity.
The mounting support is provided with a mounting structure on the side face, far away from the fins, of the mounting support, and the mounting structure is used for fixing a preset structure electrically connected with the structure to be cooled so that an avoidance gap is formed between the preset structure and the mounting support.
The mounting bracket is made of an insulating material.
A frequency converter assembly comprises the heat dissipation structure.
The frequency converter assembly comprises at least two power modules, each power module forms a structure to be cooled, at least one power module is arranged on one first side face, and at least one power module is arranged on the other first side face.
The frequency converter assembly further comprises a main control board, the main control board is electrically connected with the power module, the heat dissipation structure further comprises a mounting bracket, the mounting bracket is arranged on the first side face, the mounting bracket and the corresponding first side face jointly enclose a mounting cavity, the structure to be cooled is arranged in the mounting cavity, and the main control board is arranged on the mounting bracket.
The frequency converter assembly further comprises at least one fan, the fan is arranged on one side of the heat dissipation structure, and the air inlet direction or the air outlet direction of the fan faces the distance.
An electrical box comprises the heat radiation structure or the frequency converter assembly.
According to the heat radiation structure, the frequency converter assembly and the electric box, the two mounting plates with the space are utilized, so that the power module waiting heat radiation structure can be conveniently installed and arranged, the problem that the power module is intensively arranged to generate heat and cannot reliably radiate heat is avoided, the problem that the space occupied by the power module is too large due to too far layout is also avoided, the space is arranged so that gas can reliably radiate all the structures to be radiated through the space, the heat radiation efficiency is improved, the purposes of improving the heat radiation efficiency and reducing the occupied space are achieved, the reliable work of the frequency converter and the reliable heat radiation of the electric box are ensured, the size of the frequency converter is reduced, and the power density of the frequency converter is effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of a heat dissipation structure according to an embodiment of the present utility model;
fig. 2 is another schematic structural diagram of a heat dissipation structure according to an embodiment of the present utility model;
Fig. 3 is a schematic layout diagram of a mounting board and a structure to be heat-dissipated thereon according to an embodiment of the present utility model;
Fig. 4 is a schematic structural diagram of a frequency converter assembly according to an embodiment of the present utility model;
In the figure:
1. A mounting plate; 11. spacing; 2. a fin; 3. a structure to be heat-dissipated; 4. a blower; 5. presetting a structure; 6. a mounting bracket; 12. a mounting cavity; 61. a mounting structure; 7. a case; 81. a circuit breaker; 82. a reactor; 83. and a capacitor.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are, for example, capable of operation in other environments. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
Currently, for a high-power frequency converter, three power modules are generally adopted for rectification and three power modules are adopted for inversion. However, in the prior art, six power modules are attached to the plane of the same radiator, the fan is used to drive airflow to sequentially flow through the six power modules to radiate, if the layout of the power modules is too close, the heat generated by the power modules is concentrated, so that the problem of poor radiating reliability is caused, and if the layout of the power modules is too far, the design volume of the radiator is increased too much, and the space is too large. Therefore, how to design the heat dissipation system of the frequency converter to improve the heat dissipation efficiency and reduce the volume becomes a difficult problem to be solved by those skilled in the art. In order to solve the technical problems that in the prior art, the power module of the frequency converter is unreliable in heat dissipation and occupies space, the application provides a heat dissipation structure, a frequency converter assembly and an electric box, wherein the heat dissipation structure, the frequency converter assembly and the electric box are formed by respectively installing the power module by using two mounting plates and forming a space for air cooling so as to improve heat dissipation efficiency and reduce the volume.
Specifically, as shown in fig. 1 to 3, the heat dissipation structure includes: the two mounting plates 1 are arranged in parallel, and a space 11 is reserved between the two mounting plates 1; at least two fins 2, all the fins 2 are arranged in the space 11, and the fins 2 are provided with a first edge and a second edge which are opposite, wherein the first edge is arranged on one mounting plate 1, and the second edge is arranged on the other mounting plate 1; the mounting plate 1 has a first side facing away from the distance 11 for mounting the structure 3 to be heat-dissipated. The mounting plates 1 with the spacing 11 are utilized, so that the mounting plates can be conveniently installed and arranged on the power module waiting heat dissipation structures 3, the problem that the power module is intensively arranged to generate heat and cannot reliably dissipate heat is avoided, the problem that the space occupied by the power module is too far is avoided, the spacing 11 is arranged so that gas can reliably dissipate heat on all the structures 3 to be heat-dissipated through the spacing 11, the heat dissipation efficiency is improved, the purposes of improving the heat dissipation efficiency and reducing the occupied space are achieved, the reliable work of the frequency converter and the reliable heat dissipation of an electric appliance box are ensured, the volume of the frequency converter is reduced, and the power density of the frequency converter is effectively improved.
As an embodiment, all the fins 2 are arranged parallel to each other, and an air flow channel is formed between two adjacent fins 2. Through forming the air current passageway in interval 11 to can set up fan 4 in heat radiation structure's one end or both ends department, utilize fan 4 to force the drive gas to flow through the air current passageway, realize the forced air cooling heat dissipation to mounting panel 1, and then take away the heat of treating heat radiation structure 3 that sets up on mounting panel 1, guaranteed the radiating efficiency who treats heat radiation structure 3.
Because not only have the power module in the converter, still have the structure of predetermineeing that is connected with the power module electricity, predetermine structure 5 such as main control board, for the convenience is installed predetermineeing structure 5, heat radiation structure still includes installing support 6, installing support 6 set up in on the first side, just installing support 6 with corresponding first side encloses into installation cavity 12 jointly, wait that heat radiation structure 3 set up in installation cavity 12. The mounting bracket 6 is utilized to conveniently mount the preset structure 5 and the like, and the mounting cavity 12 is utilized to seal the structure 3 to be cooled, so that the structure 3 to be cooled and the preset structure 5 are separated, the problem that the heat of the structure 3 to be cooled is transferred to the position of the preset structure 5 to cause the temperature rise of the preset structure 5 is solved, the heat of the structure 3 to be cooled can be dissipated through the fins 2 and the air flow flowing through the fins 2, and the heat dissipation efficiency of the structure 3 to be cooled by air cooling is improved. Meanwhile, due to the existence of the mounting bracket 6, a certain electric gap is reserved between the structure to be cooled 3 and the preset structure 5, so that the mutual influence caused by too tight distance between the structure to be cooled 3 and the preset structure 5 is avoided, and the insulation level, the working safety and the reliability of the frequency converter are improved. Moreover, because the preset structure 5 needs to be electrically connected with the structure 3 to be cooled, for example, when the preset structure 5 is a main control board, the main control board needs to be connected with the power module through a signal wire, and the main control board is arranged on the mounting bracket 6, the length of the signal wire can be further shortened, so that the interference to the signal wire which is severely interfered by electromagnetic interference is reduced, and the working performance and the working reliability of the frequency converter can be further improved.
Because the mounting bracket 6 forms part of the mounting cavity 12, the temperature of the mounting bracket 6 is also increased due to the heat of the structure 3 to be cooled, and for this purpose, a mounting structure 61 is disposed on the side of the mounting bracket 6 facing away from the fins 2, and the mounting structure 61 is used for fixing a preset structure 5 electrically connected with the structure 3 to be cooled so that an avoidance gap is formed between the preset structure 5 and the mounting bracket 6. The preset structure 5 is fixed by the mounting structure 61, and meanwhile, the preset structure 5 is not contacted with the mounting bracket 6, so that heat is prevented from being transmitted to the preset structure 5 through the mounting bracket 6, and the working reliability of the preset structure 5 is ensured.
As shown in fig. 2, the mounting structure 61 is a support column, one end of the support column is abutted on the mounting bracket 6, and the other end is abutted on the preset structure 5 and fixedly connected with the preset structure 5, so that the fixing of the preset structure 5 and the formation of avoiding gaps can be realized, and the working reliability of the preset structure 5 is effectively improved.
In order to further improve the operational reliability of the frequency converter, the mounting bracket 6 is made of an insulating material. The insulation material is utilized to further ensure the electric gap between the structure to be radiated 3 and the preset structure 5, so that the insulation level is improved. Wherein the insulating material can be plastic or the like which can be processed and molded in an injection molding mode.
A frequency converter assembly comprises the heat dissipation structure.
The frequency converter assembly comprises at least two power modules, each power module forms one structure 3 to be cooled, at least one power module is arranged on one first side surface, and at least one power module is arranged on the other first side surface. The power modules are uniformly distributed on the two first side surfaces, so that the arrangement between the power modules is avoided being too close, the length of the mounting plate 1 is reduced, the heat dissipation structure and the occupied space of the frequency converter assembly are reduced, the working reliability of the frequency converter and the heat dissipation reliability of the electrical box are ensured, the size of the frequency converter is reduced, and the power density of the frequency converter is effectively improved.
Still further, the converter subassembly still includes the main control board, the main control board with the power module electricity is connected, heat radiation structure still includes installing support 6, installing support 6 set up in on the first side, just installing support 6 with corresponding first side encloses into installation cavity 12 jointly, wait that heat radiation structure 3 set up in the installation cavity 12, the main control board set up in on the installing support 6.
In order to ensure forced heat dissipation of the structure to be dissipated 3, the frequency converter assembly further comprises at least one fan 4, wherein the fan 4 is arranged on one side of the heat dissipation structure, and the air inlet direction or the air outlet direction of the fan 4 faces the space 11. The fan 4 can drive the gas to flow through the space 11, so that heat generated by the structure to be cooled 3 is transferred to the gas in the popular space 11 through the mounting plate 1 and the fins 2, and reliable cooling of the structure to be cooled 3 is realized.
And because of the existence of the interval 11, the heat generated by the heat dissipation structure 3 is relatively concentrated, so that the fan 4 can be directly arranged corresponding to the interval 11, the air cooling heat dissipation efficiency of the fan 4 is improved, particularly, all fins 2 are arranged in parallel to form a plurality of mutually parallel gas flow channels, the air flowing into the interval 11 by driving the fan 4 can be divided into a plurality of parts to flow into the corresponding gas flow channels, the air flow in each gas flow channel is basically the same, the heat dissipation uniformity of the whole heat dissipation structure is ensured, and the air cooling heat dissipation efficiency and the working reliability of the frequency converter are further improved.
Preferably, the number of fans 4 is two, two fans 4 are symmetrically distributed at two ends of the heat dissipation structure, the air outlet direction of one fan 4 faces the space 11, the air inlet direction of the other fan 4 faces the space 11, and the heat dissipation efficiency is further improved by forcing air to flow through the space 11 by using the two fans 4.
The frequency converter assembly further comprises a box body 7, the heat radiation structure and the fan 4 are arranged in the box body 7, vent holes used for communicating the inside of the box body 7 with the outside of the box body 7 are formed in the box body 7, the fan 4 is arranged between the heat radiation structure and the vent holes, so that the air with lower temperature outside the box body 7 can be introduced into the box body 7, most of the air can be forced to radiate through an air flow channel in the space 11 under the action of the fan 4, and a small part of the air can directly flow into the box body 7 to radiate the inside of the box body 7, namely, forced radiation of the structure 3 (power module) to be radiated is guaranteed, and other structures inside the box body 7 can be radiated, so that the reliability of the frequency converter is guaranteed.
Further, two vent holes are symmetrically formed in the box body 7, two fans 4 are arranged, one fan 4 is arranged between one vent hole and the radiating structure, the other fan 4 is arranged between the other vent hole and the radiating structure, at the moment, the other fan 4 can introduce external air of the box body 7 into the box body 7, and the other fan 4 can forcibly radiate the air to be radiated by the structure 3 to be radiated and send the air for radiating the heat of other structures in the box body 7 to the outside of the box body 7, so that the radiating efficiency is further improved.
As shown in fig. 1, the number of power modules of the frequency converter is six, three power modules are mounted on each first side face in parallel, the intervals are the same, the heat dissipation structure is fixed in the box 7 in a suspending manner, a main control board is mounted on one of the mounting brackets 6, the main control board is supported and mounted by using a support column, and the signal wires can penetrate through the mounting brackets 6 to realize the electric connection of the main control board and the driving board on the power modules.
The frequency converter assembly further comprises a circuit breaker 81, a reactor 82 and a capacitor 83, wherein the circuit breaker 81, the reactor 82 and the capacitor 83 are distributed in the box 7, and the heat generated by the circuit breaker 81, the reactor 82 and the capacitor 83 is small, so that the air introduced into the box 7 by the fan 4 is used for heat dissipation.
The input three-phase electricity is rectified by the power module in the heat dissipation structure through the circuit breaker 81, the rectified direct current is inverted by the power module in the heat dissipation structure through the reactor 82 and the capacitor 83, and the inverted three-phase electricity is output, so that the working process of the frequency converter for processing the three-phase electricity is completed.
An electrical box comprises the heat radiation structure or the frequency converter assembly.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A heat dissipation structure, characterized in that: comprising the following steps:
The two mounting plates (1), the two mounting plates (1) are arranged in parallel, and a space (11) is reserved between the two mounting plates (1);
The fins (2) are arranged in the space (11), the fins (2) are provided with a first edge and a second edge which are opposite, the first edge is arranged on one mounting plate (1), and the second edge is arranged on the other mounting plate (1);
The mounting plate (1) has a first side facing away from the distance (11) for mounting a structure (3) to be cooled.
2. The heat dissipating structure of claim 1, wherein: all the fins (2) are arranged in parallel, and an air flow channel is formed between two adjacent fins (2).
3. The heat dissipating structure of claim 1, wherein: the heat radiation structure further comprises a mounting bracket (6), the mounting bracket (6) is arranged on the first side face, the mounting bracket (6) and the corresponding first side face jointly enclose a mounting cavity (12), and the structure to be heat radiation structure (3) is arranged in the mounting cavity (12).
4. A heat dissipating structure according to claim 3, wherein: the mounting support (6) is provided with a mounting structure (61) on the side facing away from the fins (2), and the mounting structure (61) is used for fixing a preset structure (5) electrically connected with the structure to be cooled (3) so that an avoidance gap is formed between the preset structure (5) and the mounting support (6).
5. A heat dissipating structure according to claim 3, wherein: the mounting bracket (6) is made of an insulating material.
6. A transducer assembly, characterized in that: comprising a heat dissipating structure as defined in any one of claims 1 to 5.
7. The frequency converter assembly of claim 6, wherein: the frequency converter assembly comprises at least two power modules, each power module forms one structure (3) to be radiated, at least one power module is arranged on one first side surface, and at least one power module is arranged on the other first side surface.
8. The frequency converter assembly of claim 7, wherein: the frequency converter assembly further comprises a main control board, the main control board is electrically connected with the power module, the heat dissipation structure further comprises a mounting bracket (6), the mounting bracket (6) is arranged on the first side face, the mounting bracket (6) and the corresponding first side face jointly enclose a mounting cavity (12), the structure to be cooled (3) is arranged in the mounting cavity (12), and the main control board is arranged on the mounting bracket (6).
9. The frequency converter assembly of claim 6, wherein: the frequency converter assembly further comprises at least one fan (4), the fan (4) is arranged on one side of the heat dissipation structure, and the air inlet direction or the air outlet direction of the fan (4) faces the distance (11).
10. An electrical apparatus box, characterized in that: comprising a heat dissipating structure according to any of claims 1 to 5 or a frequency converter assembly according to any of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420296450.9U CN222030296U (en) | 2024-02-18 | 2024-02-18 | Heat dissipation structure, inverter components and electrical box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420296450.9U CN222030296U (en) | 2024-02-18 | 2024-02-18 | Heat dissipation structure, inverter components and electrical box |
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| Publication Number | Publication Date |
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| CN222030296U true CN222030296U (en) | 2024-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202420296450.9U Active CN222030296U (en) | 2024-02-18 | 2024-02-18 | Heat dissipation structure, inverter components and electrical box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119364735A (en) * | 2024-12-30 | 2025-01-24 | 长沙市创安电气有限公司 | A heat dissipation structure of frequency converter |
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2024
- 2024-02-18 CN CN202420296450.9U patent/CN222030296U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119364735A (en) * | 2024-12-30 | 2025-01-24 | 长沙市创安电气有限公司 | A heat dissipation structure of frequency converter |
| CN119364735B (en) * | 2024-12-30 | 2025-03-25 | 长沙市创安电气有限公司 | A heat dissipation structure of frequency converter |
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