Low-power explosion-proof frequency conversion and speed regulation all-in-one machine

Abstract

The utility model discloses a low-power explosion-proof frequency conversion and speed regulation all-in-one machine which comprises a frequency conversion module, a heat dissipation fan module and an explosion-proof assembly. The frequency conversion module comprises an explosion-proof frequency conversion shell and an electrical part accommodated in the explosion-proof frequency conversion shell; the heat dissipation fan module comprises a heat conduction assembly and a heat dissipation fan assembly, the heat conduction assembly is used for absorbing heat of the electrical part, and the heat dissipation fan assembly is used for transmitting the heat of the heat conduction assembly to the outside of the explosion-proof frequency conversion shell; and the anti-explosion assembly is used for preventing explosion of the heat dissipation fan assembly. According to the low-power explosion-proof frequency conversion speed regulation all-in-one machine, the explosion-proof function can be achieved in an air cooling mode, the heat dissipation function is not affected by the environment temperature, and space is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and specifically relates to a low-power explosion-proof frequency conversion and speed regulation integrated machine. Background Art

[0002] With the rapid advancement of energy conservation and emission reduction, various regions have begun to eliminate backward production capacity equipment, especially in high-energy consumption factories such as coal mines, ports, docks, and steel mills. The high efficiency and low energy consumption of the variable speed all-in-one machine are just in line with the national emission reduction policy, and its market is relatively large. Due to the presence of dangerous gases in some places such as ports and steel mills, the all-in-one machine needs to have explosion-proof function. Since there are no low-power, small-volume explosion-proof heat dissipation fans on the market, the traditional low-voltage explosion-proof all-in-one machine frequency conversion part generally adopts water cooling. The use of water cooling requires the provision of additional water cooling devices to supply water for heat dissipation, which occupies a large space and is prone to freezing in winter, affecting its heat dissipation function.

[0003] Therefore, a low-power explosion-proof variable frequency speed regulation integrated machine is developed, which can achieve explosion-proof function by air cooling, and the heat dissipation function is not affected by the ambient temperature, saving space. Utility Model Content

[0004] The purpose of the utility model is to provide a low-power explosion-proof frequency conversion speed regulation integrated machine to solve the problems existing in the prior art that the low-power explosion-proof frequency conversion speed regulation integrated machine uses water cooling, which occupies a large space and the heat dissipation function is affected by the ambient temperature.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0006] The utility model proposes a low-power explosion-proof frequency conversion speed regulation integrated machine, which comprises a frequency conversion module, a heat dissipation fan module and an explosion-proof component; the frequency conversion module comprises an explosion-proof frequency conversion housing and electrical components accommodated in the explosion-proof frequency conversion housing; the heat dissipation fan module comprises a heat conduction component and a heat dissipation fan component, the heat conduction component is used to absorb the heat of the electrical components, and the heat dissipation fan component is used to transfer the heat of the heat conduction component to the outside of the explosion-proof frequency conversion housing; the explosion-proof component is used for explosion-proofing the heat dissipation fan component.

[0007] In some embodiments of the present application, the heat dissipation fan assembly includes a driving part, a connecting part and an executing part, the driving part drives the executing part to rotate through the connecting part, the driving part is arranged in the explosion-proof frequency conversion housing, the connecting part passes through the explosion-proof frequency conversion housing, the executing part extends out of the explosion-proof frequency conversion housing, and the executing part is used to drive the flow of air at the explosion-proof frequency conversion housing.

[0008] In some embodiments of the present application, the explosion-proof component includes at least one first fixed connector, which is used to connect the explosion-proof frequency conversion housing and the heat conductive component, and the first fixed connector is used to limit the gap value between the explosion-proof frequency conversion housing and the heat conductive component.

[0009] In some embodiments of the present application, a mounting hole is provided on the explosion-proof frequency conversion housing; the heat-conducting component includes a heat dissipation component and a heat absorption component that are interconnected; the heat absorption component is arranged in the explosion-proof frequency conversion housing, and the heat absorption component is used to absorb the heat of the electrical components; the heat dissipation component extends from the mounting hole to the outside of the explosion-proof frequency conversion housing; at least one of the first fixed connecting parts is arranged around the mounting hole for connecting the explosion-proof frequency conversion housing and the heat absorption component.

[0010] In some embodiments of the present application, the explosion-proof assembly includes a first rotating connector, which is used for rotational connection between the explosion-proof frequency conversion housing and the connecting part, and the first fixed connector is used to limit the gap value between the explosion-proof frequency conversion housing and the connecting part.

[0011] In some embodiments of the present application, a rotating connection hole is provided on the explosion-proof frequency conversion housing; the first rotating connection member includes an explosion-proof copper sleeve; the explosion-proof copper sleeve is installed in the rotating connection hole; the connecting part passes through the explosion-proof copper sleeve and extends to the outside of the explosion-proof frequency conversion housing to be connected to the execution part.

[0012] In some embodiments of the present application, an auxiliary heat dissipation module is further included. The auxiliary heat dissipation module is disposed in the explosion-proof frequency conversion housing, and the auxiliary heat dissipation module is used to drive heat circulation in the explosion-proof frequency conversion housing.

[0013] In some embodiments of the present application, the explosion-proof frequency conversion housing includes a bottom plate, a recessed portion is formed on the bottom plate, the recessed portion faces the inside of the explosion-proof frequency conversion housing, the mounting hole is opened on the recessed portion, and the rotating connection hole is opened at the recessed portion.

[0014] In some embodiments of the present application, a protective shell is further included, which is mounted on the outer side of the portion of the heat conducting component extending outside the explosion-proof frequency conversion housing and the portion of the heat dissipating fan component extending outside the explosion-proof frequency conversion housing, and the protective shell is connected to the explosion-proof frequency conversion housing.

[0015] In some embodiments of the present application, at least one air inlet is formed at the lower end of the protective shell; and at least one air outlet is formed at the side end of the protective shell.

[0016] Compared with the prior art, the advantages and positive effects of the utility model are:

[0017] An explosion-proof frequency conversion housing is provided to accommodate electrical components; a heat-conducting component is provided to absorb the heat of the electrical components in the explosion-proof frequency conversion housing; a heat-dissipating fan component is provided to transfer the heat of the heat-conducting component to the outside of the explosion-proof frequency conversion housing; and an explosion-proof component is provided to provide an explosion-proof sealed connection between the explosion-proof frequency conversion housing and the heat-dissipating fan module. This can solve the problem of low-power heat-dissipating fans having no explosion-proof function, and ensure the explosion-proof function of low-power explosion-proof frequency conversion speed regulation integrated machines. The volume occupied by the heat-conducting component and the heat-dissipating fan component is small, and no additional water cooling device is required to dissipate the heat from the water. In addition, the explosion-proof heat dissipation function is not affected by the external ambient temperature.

[0018] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a front view of an embodiment of a low-power explosion-proof variable frequency speed regulating integrated machine proposed by the utility model;

[0021] Figure 2 It is a bottom view of an embodiment of a frequency conversion module, a heat dissipation fan module and an explosion-proof component of a low-power explosion-proof frequency conversion and speed regulation integrated machine proposed by the utility model;

[0022] Figure 3 It is a schematic diagram of the overall structure of an embodiment of a frequency conversion module, a heat dissipation fan module and an explosion-proof component of a low-power explosion-proof frequency conversion and speed regulation integrated machine proposed by the utility model;

[0023] Figure 4 It is a top view of an embodiment of a frequency conversion module, a heat dissipation fan module and an explosion-proof component of a low-power explosion-proof frequency conversion and speed regulation integrated machine proposed by the utility model;

[0024] Figure 5 yes Figure 4 Sectional view at AA in the middle;

[0025] Figure 6 yes Figure 4 Sectional view at the middle BB;

[0026] Figure 7 yes Figure 6 The local schematic diagram of the C in the middle;

[0027] Figure 8 It is a schematic diagram of the overall structure of an embodiment of an explosion-proof frequency conversion housing of a low-power explosion-proof frequency conversion and speed regulation integrated machine proposed by the utility model;

[0028] In the figure,

[0029] 100, frequency conversion module;

[0030] 110, explosion-proof frequency conversion housing;

[0031] 111, mounting hole;

[0032] 112, bottom plate;

[0033] 113, rotating connection hole;

[0034] 114, depression;

[0035] 120, electrical parts;

[0036] 210, thermal conductive component;

[0037] 211, heat dissipation component;

[0038] 212, heat absorbing component;

[0039] 220, cooling fan assembly;

[0040] 221, driving unit;

[0041] 222, connection part;

[0042] 223, Executive Department;

[0043] 310, a first rotating connection member;

[0044] 400, protective housing;

[0045] 410, air inlet;

[0046] 420, air outlet;

[0047] 500, explosion-proof motor;

[0048] 600, auxiliary heat dissipation module. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0052] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0055] In some embodiments of the present application, a low-power explosion-proof variable frequency speed regulating integrated machine is involved. Since there is no low-power, small-volume explosion-proof heat dissipation fan on the market, traditional low-power explosion-proof variable frequency speed regulating integrated machines generally adopt water cooling. The water cooling method requires the provision of an additional water cooling device to supply water for heat dissipation, which occupies a large space and is prone to ice under low temperature conditions, affecting the heat dissipation function. Therefore, it is necessary to develop a low-power explosion-proof variable frequency speed regulating integrated machine that adopts air cooling for heat dissipation, which can solve the explosion-proof problem of low-power, small-volume heat dissipation fans, thereby saving space and the heat dissipation effect is not affected by the ambient temperature.

[0056] In some embodiments of the present application, Figures 1 to 8 As shown, the low-power explosion-proof frequency conversion and speed regulation integrated machine includes a frequency conversion module 100, a heat dissipation fan module, an explosion-proof component and an explosion-proof motor 500.

[0057] like Figure 5 , Figure 6 As shown, the frequency conversion module 100 includes an explosion-proof frequency conversion housing 110 and an electrical component 120 accommodated in the explosion-proof frequency conversion housing 110 .

[0058] The electrical components 120 include IGBTs, circuit board components, and the like.

[0059] The heat dissipation fan module includes a heat conduction component 210 and a heat dissipation fan component 220. The heat conduction component 210 is used to absorb the heat of the electrical component 120, and the heat dissipation fan component 220 is used to transfer the heat of the heat conduction component 210 to the outside of the explosion-proof frequency conversion housing 110.

[0060] The explosion-proof component is used for explosion-proofing the heat dissipation fan component 220 .

[0061] In some embodiments of the present application, the heat dissipation fan assembly 220 includes a driving portion 221, a connecting portion 222, and an executing portion 223. The driving portion 221 is connected to the executing portion 223 through the connecting portion 222. The driving portion 221 drives the executing portion 223 to rotate through the connecting portion 222. The driving portion 221 is arranged in the explosion-proof frequency conversion housing 110. The connecting portion 222 passes through the explosion-proof frequency conversion housing 110. The executing portion 223 extends out of the explosion-proof frequency conversion housing 110, and the executing portion 223 is used to drive the flow of airflow at the explosion-proof frequency conversion housing 110.

[0062] Since the driving part 221 is an electric component, it needs to be disposed in an explosion-proof frequency conversion housing 110 . The explosion-proof frequency conversion housing 110 is used to provide explosion-proof protection for the driving part 221 .

[0063] Specifically, the driving unit 221 may be a fan.

[0064] The fan is connected to the explosion-proof frequency conversion housing 110 through a fan fixing seat.

[0065] The connecting portion 222 is used to transmit the rotational power of the driving portion 221 to the executing portion 223 .

[0066] Specifically, the connection portion 222 may be a rotating shaft.

[0067] When the connection part 222 passes through the explosion-proof inverter housing 110 and extends out of the explosion-proof inverter housing 110 , it is necessary to ensure the gap value between the connection part 222 and the explosion-proof inverter housing 110 , so as to ensure the explosion-proof effect of the explosion-proof inverter housing 110 .

[0068] Specifically, the explosion-proof assembly includes a first rotating connection member 310 .

[0069] The first rotating connector 310 is used for the gap value between the explosion-proof frequency conversion housing 110 and the connecting portion 222. Thus, the sealing performance of the explosion-proof frequency conversion housing 110 is ensured. In special cases such as fire in the electrical components 120 in the explosion-proof frequency conversion housing 110, the gap value between the explosion-proof frequency conversion housing 110 and the first rotating connector 310 meets the requirements, and smoke and flames can be confined in the explosion-proof frequency conversion housing 110, thereby ensuring the explosion-proof function.

[0070] Specifically, in order to enable the connection part 222 to pass through the explosion-proof frequency conversion housing 110 , a rotation connection hole 113 is opened on the explosion-proof frequency conversion housing 110 , and the connection part 222 extends from the rotation connection hole 113 to the outside of the explosion-proof frequency conversion housing 110 .

[0071] Specifically, the first rotating connection member 310 includes an explosion-proof copper sleeve. The explosion-proof copper sleeve is installed in the rotating connection hole 113, and the connection part 222 passes through the explosion-proof copper sleeve. A gap value that meets the explosion-proof standard is ensured between the explosion-proof copper sleeve and the connection part 222. In this way, the sealing of the explosion-proof frequency conversion housing 110 is ensured. In special circumstances such as a fire in the electrical component 120 in the explosion-proof frequency conversion housing 110, the gap value between the explosion-proof frequency conversion housing 110 and the explosion-proof copper sleeve meets the requirements, and smoke and flames can be confined in the explosion-proof frequency conversion housing 110, thereby ensuring the explosion-proof function.

[0072] The explosion-proof copper sleeve is interference-connected with the rotating connection hole 113 .

[0073] An explosion-proof surface is formed between the explosion-proof copper sleeve and the connecting part 222 to separate the non-explosion-proof driving part 221 from the execution part 223, thereby achieving an overall explosion-proof function.

[0074] The explosion-proof copper sleeve is made of copper. During the rotation of the connection part 222 relative to the explosion-proof copper sleeve, since the connection part 222 is made of steel, during the relative rotation of the two, the explosion-proof copper sleeve is first worn. When the explosion-proof copper sleeve is worn to the point where the gap between the explosion-proof copper sleeve and the connection part 222 exceeds the requirements of the explosion-proof standard, the explosion-proof copper sleeve can be replaced. This extends the service life of the connection part 222 and the explosion-proof frequency conversion housing 110.

[0075] Specifically, the execution unit 223 may use a centrifugal fan which is arranged outside the explosion-proof frequency conversion housing 110 and adjacent thereto, and accelerates the gas exchange in the explosion-proof frequency conversion housing 110 through the rotation of the centrifugal fan, thereby taking away the heat concentrated in the explosion-proof frequency conversion housing 110 .

[0076] In some embodiments of the present application, the explosion-proof assembly further includes at least one first fixed connector. The at least one first fixed connector is used to connect the explosion-proof frequency conversion housing 110 with the heat-conducting assembly 210. The connection gap value between the explosion-proof frequency conversion housing 110 and the heat-conducting assembly 210 is ensured by the at least one first fixed connector, thereby ensuring the explosion-proof function.

[0077] In some embodiments of the present application, Figure 8 As shown, a mounting hole 111 is provided on the explosion-proof frequency conversion housing 110. The heat-conducting assembly 210 includes a heat dissipating component 211 and a heat absorbing component 212 connected to each other. The heat absorbing component 212 is used to absorb the heat of the electrical components 120 in the explosion-proof frequency conversion housing 110, and the heat dissipating component 211 is used to transfer the heat absorbed by the heat absorbing component 212.

[0078] The heat absorbing component 212 is disposed in the explosion-proof frequency conversion housing 110. Figure 3 As shown, the heat dissipation component 211 extends from the mounting hole 111 to the outside of the mounting hole 111 .

[0079] Specifically, the heat absorbing component 212 abuts against the electrical component 120 that mainly dissipates heat, thereby absorbing the heat of the heat absorbing component 212 .

[0080] Specifically, the electrical component 120 that mainly dissipates heat includes an IGBT, and the heat absorbing component 212 abuts against the IGBT.

[0081] Specifically, the heat absorbing component 212 can be a heat sink, which continuously absorbs heat. The heat sink can be made of copper to increase its heat absorption capacity.

[0082] The heat dissipating component 211 abuts against the heat absorbing component 212 , thereby dissipating the heat absorbed by the heat absorbing component 212 .

[0083] Specifically, the heat dissipation component 211 can be in the form of heat dissipation fins, which can ensure the heat dissipation effect of the heat dissipation component 211, so as to achieve heat conduction to the outside of the explosion-proof frequency conversion housing 110.

[0084] The heat dissipation fins are connected to the heat dissipation plate by riveting.

[0085] The heat absorption component 212 is connected to the installation hole 111 through at least one first fixing connector. At least one first fixing connector connects the heat absorption component 212 to the explosion-proof frequency conversion housing 110 and covers the installation hole 111. At least one first fixing connector is used to ensure the connection clearance value between the explosion-proof frequency conversion housing 110 and the heat absorption component 212, so as to ensure the sealing performance of the explosion-proof frequency conversion housing 110. In the event of a special situation such as a fire in the electrical component 120 inside the explosion-proof frequency conversion housing 110, the heat dissipation component 211 is tightly connected to the explosion-proof frequency conversion housing 110 through the first fixing connector. The clearance value between the explosion-proof frequency conversion housing 110 and the heat dissipation component 211 meets the requirements, and can limit the smoke and flames inside the explosion-proof frequency conversion housing 110, thus ensuring the explosion-proof function.

[0086] Specifically, the number of the first fixing connectors is multiple, and the multiple first fixing connectors are arranged around the installation hole 111 to connect the heat dissipation component 211 to the explosion-proof frequency conversion housing 110. The heat dissipation component 211 is connected to the explosion-proof frequency conversion housing 110 along the circumferential direction of the installation hole 111, and the clearance value is ensured.

[0087] Specifically, the first fixing connector can be a bolt.

[0088] The clearance value between the heat absorption component 212 and the explosion-proof frequency conversion housing 110 is ensured, thus forming an explosion isolation surface, so as to meet the explosion-proof requirements. The heat dissipation component 211 extends out of the explosion-proof frequency conversion housing 110 to increase the heat dissipation capacity.

[0089] In some embodiments of the present application, the explosion-proof frequency conversion housing 110 includes a bottom plate 112, and a recessed portion 114 is formed on the bottom plate 112. The recessed portion 114 faces the direction inside the explosion-proof frequency conversion housing 110. The installation hole 111 and the rotation connection hole 113 are opened on the bottom plate 112.

[0090] Specifically, the bottom plate 112 is in a "ji" shape.

[0091] The heat conduction component 210 and the heat dissipation fan component 220 are installed at the recessed portion 114.

[0092] The heat dissipation component 211 is adjacent to the execution part 223.

[0093] In some embodiments of the present application, such as Figure 1 、 Figure 2As shown, the protective housing 400 is also included. The protective housing 400 is mounted on the outer side of the portion of the heat conducting component 210 extending out of the explosion-proof frequency conversion housing 110. The protective housing 400 is mounted on the outer side of the portion of the heat dissipation fan component 220 extending out of the explosion-proof frequency conversion housing 110. The protective housing 400 is connected to the explosion-proof frequency conversion housing 110.

[0094] In order to achieve the flow of air through the explosion-proof frequency conversion housing 110 , at least one air inlet 410 is opened at the lower end of the protective housing 400 . At least one air outlet 420 is opened at the side end of the protective housing 400 .

[0095] In some embodiments of the present application, an auxiliary heat dissipation module 600 is disposed in the explosion-proof frequency conversion housing 110 , and the auxiliary heat dissipation module 600 is used to drive the circulation of heat in the explosion-proof frequency conversion housing 110 .

[0096] Specifically, the auxiliary heat dissipation module 600 includes a fan.

[0097] In some embodiments of the present application, a low-power explosion-proof variable frequency speed regulating integrated machine includes an explosion-proof motor 500, an explosion-proof variable frequency housing 110, an IGBT, a non-explosion-proof heat dissipation fan, a flameproof copper sleeve, a heat sink, a fan fixing seat, a protective housing 400, a centrifugal wind wheel, and an auxiliary heat dissipation module 600. The bottom plate 112 of the explosion-proof variable frequency housing 110 is in a "few" shape, and the middle part is used to install the non-explosion-proof heat dissipation fan and the heat sink. A rotating connection hole 113 is opened in the middle of the bottom plate 112 of the explosion-proof variable frequency housing 110 for installing the flameproof copper sleeve, wherein the flameproof copper sleeve is interference-connected with the rotating connection hole 113 opened on the bottom plate 112 of the explosion-proof variable frequency housing 110. The heat sink is made of copper to increase the heat absorption capacity, and the lower end is riveted with heat dissipation fins to increase the heat dissipation capacity. The lower end surface of the main part of the heat sink forms a flameproof surface with the upper surface of the bottom plate 112 of the explosion-proof variable frequency housing 110, and is fastened by bolts to meet the explosion-proof requirements. The heat dissipation fin part is led out to the outside of the explosion-proof frequency conversion housing 110. The IGBT is installed on the upper end of the heat dissipation plate, and the heat generated is absorbed by the heat dissipation plate to the greatest extent.

[0098] The heat dissipation fan assembly 220 is composed of a non-explosion-proof heat dissipation fan, a rotating shaft, and a centrifugal wind wheel. The non-explosion-proof fan is fixedly connected to the explosion-proof frequency conversion housing 110 through a fan fixing seat, and the rotating shaft is led out to the outside of the explosion-proof frequency conversion housing 110 through a flameproof copper sleeve. The centrifugal wind wheel is fixedly connected to the rotating shaft. The non-explosion-proof heat dissipation fan is isolated from the centrifugal wind wheel by adding a flameproof surface between the rotating shaft and the flameproof copper sleeve, thereby realizing the overall explosion-proof function. One side of the centrifugal wind wheel is a heat dissipation fin part, and at least one air inlet 410 is opened on the side and bottom of the protective housing 400. The protective housing 400 is installed at the lower end of the centrifugal wind wheel and the heat dissipation fins. Through the rotation of the centrifugal wind wheel, air enters from the lower end of the protective housing 400, passes through the heat dissipation fins, and exhausts from the side of the protective housing 400, thereby realizing the heat dissipation function. A fan is installed inside the explosion-proof frequency conversion housing 110, and the heat of other electrical components is circulated inside the explosion-proof frequency conversion housing 110 through the fan. The heat is dissipated through the heat sink and the explosion-proof frequency conversion housing 110, thereby achieving the effect of overall heat dissipation.

[0099] In some embodiments of the present application, when a low-power explosion-proof variable frequency speed regulating integrated machine is working, when it is powered on, the IGBT and circuit board devices generate heat, the internal fan rotates, and the heat generated by the circuit board devices is circulated inside the explosion-proof variable frequency housing 110, the heat sink continuously absorbs heat and conducts it to the heat dissipation fins, thereby achieving heat conduction to the outside of the explosion-proof variable frequency housing, and at the same time, the non-explosion-proof heat dissipation fan rotates through the rotating shaft, thereby driving the centrifugal wind wheel to rotate, and the centrifugal wind wheel sucks air through the air inlet 410 at the lower end of the protective housing 400, blowing the wind to the heat dissipation fins at the lower end of the heat sink, and finally taking the heat out of the protective housing 400 through the side end air outlet 420 of the protective housing 400. The advantages of adopting the above method are as follows: the air cooling method solves the technical problem that there is no low-power, small-volume explosion-proof variable frequency speed regulating integrated machine on the market; compared with the water-cooled heat dissipation method, the additional water-cooled heat dissipation device is reduced, which not only reduces the use volume, but also reduces the customer's use cost. Thereby increasing the operating efficiency and reducing the maintenance cost.

[0100] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0101] The above is only a specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A low-power explosion-proof frequency conversion and speed regulation integrated machine, characterized in that: include: A frequency conversion module, comprising an explosion-proof frequency conversion housing and electrical components contained in the explosion-proof frequency conversion housing; A heat dissipation fan module, comprising a heat conduction component and a heat dissipation fan component, wherein the heat conduction component is used to absorb the heat of the electrical component, and the heat dissipation fan component is used to transfer the heat of the heat conduction component to the outside of the explosion-proof frequency conversion housing; An explosion-proof component is used for explosion-proof sealing connection between the explosion-proof frequency conversion housing and the heat dissipation fan module.

2. The low-power explosion-proof frequency conversion and speed regulation integrated machine according to claim 1 is characterized in that: The heat dissipation fan assembly includes a driving part, a connecting part and an executing part. The driving part drives the executing part to rotate through the connecting part. The driving part is arranged in the explosion-proof frequency conversion housing. The connecting part passes through the explosion-proof frequency conversion housing. The executing part extends out of the explosion-proof frequency conversion housing. The executing part is used to drive the flow of air at the explosion-proof frequency conversion housing.

3. The low-power explosion-proof frequency conversion and speed regulation integrated machine according to claim 2 is characterized in that: The explosion-proof component includes at least one first fixed connector, which is used to connect the explosion-proof frequency conversion housing and the heat-conducting component, and is used to limit the gap value between the explosion-proof frequency conversion housing and the heat-conducting component.

4. The low-power explosion-proof frequency conversion and speed regulation integrated machine according to claim 3 is characterized in that: The explosion-proof frequency conversion housing is provided with a mounting hole; The heat-conducting assembly includes a heat-dissipating component and a heat-absorbing component connected to each other; The heat absorbing component is arranged in the explosion-proof frequency conversion housing, and the heat absorbing component is used to absorb the heat of the electrical component; The heat dissipation component extends from the mounting hole to the outside of the explosion-proof frequency conversion housing; At least one of the first fixed connectors is disposed around the mounting hole and is used to connect the explosion-proof frequency conversion housing and the heat absorption component.

5. The low-power explosion-proof frequency conversion and speed regulation integrated machine according to claim 4 is characterized in that: The explosion-proof assembly includes a first rotating connection member, which is used for rotational connection between the explosion-proof frequency conversion housing and the connection part, and the first fixed connection member is used to limit the gap value between the explosion-proof frequency conversion housing and the connection part.

6. The low-power explosion-proof frequency conversion and speed regulation integrated machine according to claim 5, characterized in that: The explosion-proof frequency conversion housing is provided with a rotation connection hole; The first rotating connection member includes an explosion-proof copper sleeve; The explosion-proof copper sleeve is installed in the rotating connection hole; The connecting part passes through the explosion-proof copper sleeve and then extends out of the explosion-proof frequency conversion housing to be connected with the executing part.

7. The low-power explosion-proof frequency conversion and speed regulation integrated machine according to claim 1 is characterized in that: It also includes an auxiliary heat dissipation module, which is arranged in the explosion-proof frequency conversion housing and is used to drive heat circulation in the explosion-proof frequency conversion housing.

8. The low-power explosion-proof frequency conversion and speed regulation integrated machine according to claim 6 is characterized in that: The explosion-proof frequency conversion housing comprises a bottom plate, a recessed portion is formed on the bottom plate, the recessed portion faces the inside of the explosion-proof frequency conversion housing, the mounting hole is arranged on the recessed portion, and the rotating connection hole is arranged at the recessed portion.

9. The low-power explosion-proof frequency conversion and speed regulation integrated machine according to claim 1, characterized in that: It also includes a protective shell, which is mounted on the outer side of the portion of the heat conduction component extending out of the explosion-proof frequency conversion shell and the portion of the heat dissipation fan component extending out of the explosion-proof frequency conversion shell, and the protective shell is connected to the explosion-proof frequency conversion shell.

10. The low-power explosion-proof frequency conversion and speed regulation integrated machine according to claim 9, characterized in that: The lower end of the protective shell is provided with at least one air inlet; the side end of the protective shell is provided with at least one air outlet.

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